FULLY ROLLING FRICTION CHAIN PLATE CARRIER WHEEL MATERIAL FEEDER

DISPOSITIF D'ALIMENTATION EN MATERIAU A POULIE A PLAQUE A CHAINES PAR FROTTEMENT ENTIEREMENT ROTATIF

English Abstract

A fully rolling frictional chained plate carrier wheel material feeder. Scraping plate chains (4) surround a wheel-guarding material-guiding support plate (6), a driving gear sprocket (7), supporting chained plate wheels (2), and a redirection gear sprocket (8) to be engaged on the driving gear sprocket (7) and the redirection gear sprocket (8). The scraping plate chains (4), material scraping plates (5), and the wheel-guarding material-guiding support plate (6) are separated by gaps. The material scraping plates (5) are provided between two scraping plate chains (4). The outer surface of the supporting chained plate wheels (2) is higher than the upper surface of the wheel-guarding material-guiding support plate (6). The scraping plate chains (4) and the material scraping plates (5) revolve around the supporting chained plate wheels (2) and drive the rotation of the supporting chained plate wheels (2). No sliding friction is produced between the scraping plate chains (4), the material scraping plates (5), and the supporting chained plate wheels (2). Moreover, no friction is produced between the scraping plate chains (4), the material scraping plates (5), and the wheel-guarding material-guiding support plate (6). The supporting chained plate wheels (2) roll and rotatively support the scraping plate chains (4) and the material scraping plates (5) to convey materials. This implements fully rolling frictional material conveyance and material loading for a scraping plate feeder, the supporting chained plate wheels (2) are installed to reduce the power of a driver, and, sliding friction and loss are prevented between scraping plates and the wheel-guarding material-guiding support plate (6), thus significantly reducing noise and increasing service life.

French Abstract

L'invention concerne un dispositif d'alimentation en matériau à roue de support à chaînes par frottement entièrement roulant. Des chaînes de plaque de raclage (4) entourent une plaque de support de guidage de matériau à protection de roue (6), un barbotin d'engrenage d'entraînement (7), supportant des roues de plaque à chaînes (2), et un barbotin d'engrenage de redirection (8) devant être mis en prise sur le barbotin d'engrenage d'entraînement (7) et le barbotin d'engrenage de redirection (8). Les chaînes de plaque de raclage (4), les plaques de raclage de matériau (5) et la plaque de support de guidage de matériau à protection de roue (6) sont séparées par des espaces. Les plaques de raclage de matériau (5) sont disposées entre deux chaînes de plaque de raclage (4). La surface externe des roues de plaque à chaînes (2) faisant office de support est supérieure à la surface supérieure de la plaque de support de guidage de matériau à protection de roue (6). Les chaînes de plaque de raclage (4) et les plaques de raclage de matériau (5) tournent autour des roues de plaque à chaînes (2) faisant office de support et entraînent la rotation des roues de plaque à chaînes (2) faisant office de support. Aucun frottement de glissement n'est produit entre les chaînes de plaque de raclage (4), les plaques de raclage de matériau (5) et les roues de plaque à chaînes (2) faisant office de support. De plus, aucun frottement n'est produit entre les chaînes de plaque de raclage (4), les plaques de raclage de matériau (5), et la plaque de support de guidage de matériau à protection de roue (6). Les roues de plaque à chaînes (2) faisant office de support roulent et supportent de façon rotative les chaînes de plaque de raclage (4) et les plaques de raclage de matériau (5) pour transporter des matériaux. Ceci met en uvre un transport de matériau à frottement entièrement roulant et un chargement de matériau pour un dispositif d'alimentation à plaque de raclage, les roues de plaque à chaînes (2) faisant office de support sont installées pour réduire la puissance d'un conducteur, et, le frottement et la perte de glissement sont empêchés entre les plaques de raclage et la plaque de support de guidage de matériau à protection de roue (6), réduisant ainsi significativement le bruit et augmentant la durée de vie.

Claims

What is claimed is:
1. A fully rolling friction chain plate carrier wheel material feeder,
comprising: a guiding groove, a support chain plate wheel, a support chain
plate wheel supporter, a scraper chain, a material scraping plate, a
wheel-guarding material-guiding support plate, a driving gear roller, a
redirecting gear roller, a driver and a frame; the guiding groove is connected

with a bin opening; a lower part of the guiding groove is fastened to the
frame;
the guiding groove is connected with the frame fixedly or movably; the
wheel-guarding material-guiding support plate is arranged at the lower part of

the guiding groove and is supported by the frame, or is hooked up to the
guiding groove; the material scraping plate is disposed between two scraper
chains; the support chain plate wheel supporter comprises a link support chain

plate wheel track; the link support chain plate wheel track is arranged on the

wheel-guarding material-guiding support plate or is integrated with the
wheel-guarding material-guiding support plate; the support chain plate wheel
comprise a link support chain plate wheel, a scraper support chain plate wheel

or a frame support chain plate wheel; the scraper chain comprises a shaft
threading link or a shaft roller link; the shaft threading link is composed of
a
chain connecting plate and a chain threading shaft, and the shaft roller link
comprises a chain connecting plate, a chain threading shaft and a chain
roller;
a width of the support chain plate wheel is less than a distance between two
chain connecting plates, and the support chain plate wheel supports the chain
roller; or a width of the support chain plate wheel is greater than a distance

between two chain connecting plates, and the support chain plate wheel
supports the chain connecting plate; when the link support chain plate wheel
is
used, the link support chain plate wheel is arranged on the chain threading
shaft; the link support chain plate wheel is separately arranged or is
integrated
with a chain roller; the wheel-guarding material-guiding support plate is
provided with the link support chain plate wheel track; a width of the link
Date Recue/Date Received 2022-10-31

support chain plate wheel track is less than a distance between two chain
connecting plates; a height of the link support chain plate wheel track makes
the link support chain plate wheel lift the material scraping plate, so that a
gap
forms between the material scraping plate and the wheel-guarding
material-guiding support plate, and the scraper chain and the material
scraping
plate run to scrape and load materials under a rolling support of the link
support chain plate wheel; or when the scraper support chain plate wheel is
used, the scraper support chain plate wheel is arranged on the material
scraping plate, and the material scraping plate runs to scrape and load
materials under a rolling support of the scraper support chain plate wheel; or

when the frame support chain plate wheel is used, the frame support chain
plate wheel is arranged between the driving gear roller and the redirecting
gear
roller; a position, corresponding to the frame support chain plate wheel, of
the
support chain plate wheel supporter is supported by the frame; the support
chain plate wheel supporter is connected with the frame separately or
integrally; the driving gear roller and the redirecting gear roller are
arranged in
front and rear of the wheel-guarding material-guiding support plate; the
scraper chain is buckled on the driving gear roller and the redirecting gear
roller surrounding the wheel-guarding material-guiding support plate, the
driving gear roller, the frame support chain plate wheel and the redirecting
gear
roller; the scraper chain, the material scraping plate and the wheel-guarding
material-guiding support plate are separated by gaps; an outer surface of the
frame support chain plate wheel is higher than an upper end face of the
wheel-guarding material-guiding support plate; the support chain plate wheel
supporter is provided with a support chain plate wheel bearing or a support
chain plate wheel shaft; when the support chain plate wheel supporter is
provided with the support chain plate wheel bearing, the frame support chain
plate wheel is provided with a support chain plate wheel shaft; the support
chain plate wheel bearing supports the support chain plate wheel shaft to
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rotate; the frame support chain plate wheel is arranged near a bottom surface
of an upper chain of the scraper chain; the scraper chain and the material
scraping plate are supported by the frame support chain plate wheel; the
scraper chain, the material scraping plate and the wheel-guarding
material-guiding support plate are separated by gaps; the driver drives the
driving gear roller to rotate; the scraper chain drives the redirecting gear
roller
to rotate; the driving gear roller drives the scraper chain and the material
scrapping plate to rotate; the scraper chain and the material scrapping plate
rotate to the frame support chain plate wheel and drive the frame support
chain
plate wheel to rotate; the frame support chain plate wheel rolls and rotates
to
support the scraper chain and the material scraping plate to convey materials;

or when the support chain plate wheel supporter is provided with the support
chain plate wheel shaft, the frame support chain plate wheel comprises a
support chain plate wheel bearing, and the support chain plate wheel bearing
is buckled and sleeved on the support chain plate wheel shaft; the scraper
chain and the material scraping plate rotate to the frame support chain plate
wheel and drive the support chain plate wheel to rotate; the support chain
plate
wheel rolls and rotates to support the scraper chain and the material scraping

plate to convey materials, which realizes fully rolling frictional matedal
conveyance and material loading of the scraper feeder; the frame support
chain plate wheel and the support chain plate wheel bearing are connected
separately or integrally; the wheel-guarding material-guiding support plate is
a
straight plate, or a part, near the frame support chain plate wheel, of the
wheel-guarding material-guiding support plate is provided with a support chain

plate wheel groove; the frame support chain plate wheel extends out from the
support chain plate wheel groove to lift the scraper chain and the material
scraping plate; the lower part of the guiding groove near the scraper chain is

set as a flat plate or the lower part of the guiding groove near the scraper
chain
is provided with a protective scraper chain and a protective chain plate wheel
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baffle of the support chain plate wheel; when the protective chain plate wheel

baffle is used, a width of the protective chain plate wheel baffle is greater
than
a width from an inner wall of the guiding groove to the support chain plate
wheel groove; the protective chain plate wheel baffle prevents materials from
entering the support chain plate wheel groove and flowing to a lower part of
the
wheel-guarding material-guiding support plate; a power of the driver is
reduced
by using the support chain plate wheel, and a sliding friction loss between
the
material scraping plate and the wheel-guarding material-guiding support plate
is avoided, so that the material scraping plate runs to feed materials without

noise and has long service life.
2. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 1, wherein the support chain plate wheel shaft comprises a
half shaft or a through shaft; the support chain plate wheel is positioned
with
the support chain plate wheel shaft by means of a shaft shoulder, a spacer
sleeve, a retainer ring, a baffle, a bolt, a pressing cover and/or a locating
pin;
the through shaft positions the support chain plate wheels on two ends to
prevent the support chain plate wheels from tilting under heavy pressure.
3. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 1, wherein the fully rolling friction chain plate carrier
wheel
material feeder comprises a return material cleaning hopper and a lower chain
falling material cleaning chain guide; the scraper chain rotates to an upper
part
of a wheel-guarding retainer plate, which is called an upper scraper chain;
the
scraper chain rotates to a lower part of the wheel-guarding retainer plate,
which is called a lower scraper chain; the return material cleaning hopper is
arranged at the frame and near the scraper chain and the material scraping
plate that rotate to the lower part of the wheel-guarding retainer plate, and
has
a distance away from the scraper chain and the material scraping plate; the
lower chain falling material cleaning chain guide comprises a pressing wheel
chain guide or a catching groove chain guide; the lower chain falling material
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cleaning chain guide is arranged on the return material cleaning hopper or on
the frame or on the support chain plate wheel supporter; the pressing wheel
chain guide comprises a pressing-down chain wheel chain guide or a support
upper chain pressing-down chain wheel; when the pressing-down chain wheel
chain guide is used, the pressing-down chain wheel chain guide and the
support chain plate wheel are arranged separately, and the pressing-down
chain wheel chain guide presses a lower chain of the scraper chain; when the
support upper chain pressing-down chain wheel is used, the support upper
chain pressing-down chain wheel and the support chain plate wheel are
arranged separately or integrally; when the support upper chain pressing-down
chain wheel and the support chain plate wheel are arranged integrally, an
upper surface of the support upper chain pressing-down chain wheel supports
the scraper chain and the material scraping plate on an upper part of the
wheel-guarding material-guiding support plate, and a lower surface of the
support upper chain pressing-down chain wheel is arranged on an upper part
of the lower scraper chain and the material scraping plate to limit the lower
scraper chain and the material scraping plate, so the lower scraper chain and
the material scraping plate are limited by the support upper chain
pressing-down chain wheel; when the catching groove chain guide is used, the
catching groove chain guide is arranged on the frame or on the return material

cleaning hopper; the catching groove chain guide is buckled on the scraper
chain and there is a gap between the catching groove chain guide and the
scraper chain, so as to limit the scraper chain to bounce; the lower chain
falling
material cleaning chain guide limits the scraper chain and the material
scraping plate that rotate to a lower part of the wheel-guarding material-
guiding
support plate, so that the scraper chain and the material scraping plate that
rotate to the lower part of the wheel-guarding material-guiding support plate
scrape a return coal and falling coal and other materials in the return
material
cleaning hopper onto the wheel-guarding material-guiding support plate, and
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Date Recue/Date Received 2022-10-31

scrape the return coal and falling coal and other materials in the return
material
cleaning hopper to a loading and unloading port for transferring.
4. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 1 or 3, wherein fully rolling friction chain plate carrier
wheel
material feeder comprises a lower material cleaner; the lower material cleaner

is arranged on the upper part of the scraper chain and the material scraping
plate that rotate to the lower part of the wheel-guarding material-guiding
support plate, and is supported by the frame or the return material cleaning
hopper; the lower material cleaner is arranged near the scraper chain and the
material scraping plate that rotate to the lower part of the wheel-guarding
material-guiding support plate and near a tail, so as to prevent material
jamming between the scraper chain and the material scraping plate that rotate
to the lower part of the wheel-guarding material-guiding support plate and the

driving gear roller at the tail or the redirecting gear roller at the tail.
5. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 3, wherein the return material cleaning hopper comprises a
left side plate, a right side plate and a material cleaning base plate; the
left side
plate comprises a left vertical side plate and a left inclined side plate, and
the
right side plate comprises a right vertical side plate and a right inclined
side
plate; the left vertical side plate and the right vertical side plate are
arranged
vertical to the material cleaning base plate; the left inclined side plate and
the
right inclined side plate are arranged inclined to the material cleaning base
plate; the left inclined side plate guides the return coal and coal sludge at
a left
side into the material cleaning base plate, and the right inclined side plate
guides the return coal and coal sludge at a right side into the material
cleaning
base plate, which is convenient for the scraper chain and the material
scraping
plate that rotate to the lower part of the wheel-guarding material-guiding
support plate to scrape the return coal and the falling coal onto the
wheel-guarding material-guiding support plate for transferring.
Date Recue/Date Received 2022-10-31

6. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 3, wherein the return material cleaning hopper is arranged on

a lower part of the fully rolling friction chain plate carrier wheel material
feeder,
and holds a falling coal, a falling coal sludge and the return coal on the
fully
rolling friction chain plate carrier wheel material feeder, which is
convenient for
a lower material scraping plate to scrape the return coal and the falling coal

onto the wheel-guarding material-guiding support plate; a tail of the return
material cleaning hopper is higher than the part, near a loading and unloading

port, of the return material cleaning hopper relative to the ground, so as to
make the coal sludge flow into the loading and unloading port for a next
conveyance; or the return material cleaning hopper is provided with a water
guide groove of material cleaning hopper; the water guide groove of material
cleaning hopper guides the coal sludge into a sewage disposal facility or into
a
coal sludge collecting container to ensure a clean and environmental friendly
situation.
7. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 3, wherein a left side plate and/or a right side plate is
higher
than the lower chain falling material cleaning chain guide and the material
scraping plate, to prevent the materials from spilling from the left side
plate
and/or the right side plate.
8. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 3, wherein a tail of the return material cleaning hopper is
provided with a curved tail drop guide; the curved tail drop guide is arranged
at
a return part of the scraper chain facing toward an unloading port; the curved

tail drop guide is supported by the return material cleaning hopper or the
frame;
the curved tail drop guide is connected with the frame movably or integrally;
an
arc of the curved tail drop guide is not less than an arc of an arc surface of
the
scraper chain moving upward along the driving gear roller or the redirecting
gear roller; a curved material guide channel is formed between the curved tail
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Date Recue/Date Received 2022-10-31

drop guide and a surface of the driving gear roller or a surface of the
redirecting gear roller; the curved material guide channel is beneficial for
the
scraper chain to drive the material scraping plate to scrape the coal and
other
materials in the return material cleaning hopper to the wheel-guarding
retainer
plate; a height of the curved tail drop guide is higher than the material
scraping
plate on the driving gear roller and the redirecting gear roller, so as to
prevent
the material scraping plate from piling up the materials at a tail to spill;
when
the curved tail drop guide is connected with the frame movably, the frame is
provided with a connecting tail material guide component, and correspondingly,

the curved tail drop guide is provided with a material guide connecting frame
component; the connecting tail material guide component is connected with
the material guide connecting frame component movably; when two-way
feeding is needed, the material guide connecting frame component is removed
from the connecting tail material guide component, and the driver drives the
scraper chain to reverse, so as to realize reverse feeding.
9. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 8, wherein the curved tail drop guide comprises a fixed
curved
tail drop guide or a detachable curved tail drop guide; when the detachable
curved tail drop guide is used, the detachable curved tail drop guide
comprises
an upper curved tail drop guide and a lower curved tail drop guide; the upper
curved tail drop guide is movably docked to the lower curved tail drop guide;
when the curved tail drop guide is blocked or needs to be repaired, the upper
curved tail drop guide is removed, which facilitates maintenance and
observation.
10. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 3, wherein the return material cleaning hopper comprises a
self-slip inclined base plate; an opening at an inclined angle of the self-
slip
inclined base plate faces toward an unloading port; the inclined angle is not
less than a self-slip stacking angle of materials, so that the materials flow
to
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Date Recue/Date Received 2022-10-31

the unloading port along the self-slip inclined base plate; or the return
material
cleaning hopper comprises a base plate the front section of which folds
downward; a section, close to an unloading port, of the base plate the front
part of which folds downward is a front self-slip inclined base plate, and a
section close to the tail is a rear flat base plate; the front self-slip
inclined base
plate makes the materials on the section close to the unloading port slide
along
the front self-slip inclined base plate into a next conveying mechanism; the
rear flat base plate scrapes the materials close to the tail from the lower
material scraping plate to the wheel-guarding material-guiding support plate
to
be conveyed to the unloading port; the base plate the front part of which
folds
downward reduces a height of the whole machine and reduces a load of
scraping the return material.
11. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 1, wherein the support chain plate wheel comprises a gear
support chain plate wheel or a roller support chain plate wheel; the support
chain plate wheel comprises a rubber support chain plate wheel, a
polyurethane support chain plate wheel, a nylon support chain plate wheel, a
steel support chain plate wheel, an alloy support chain plate wheel, a cast
iron
support chain plate wheel, a plastic steel support chain plate wheel, an
aluminum support chain plate wheel, a porcelain support chain plate wheel or
a plastic support chain plate wheel.
12. The fully rolling friction chain plate carrier wheel material feeder as
claimed in claim 3, wherein the return material cleaning hopper or the frame
is
provided with a support lower chain track; the support lower chain track
matches with a roller sleeve of the lower scraper chain; a width of the
support
lower chain track is less than a distan between two chain connecting plates
of the lower scraper chain; the roller sleeve of the lower scraper chain rolls

along the support lower chain track, which changes a sliding friction between
the scraper chain and the return material cleaning hopper, reduces a friction
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Date Recue/Date Received 2022-10-31

resistance, and reduces a mutual wear between the support lower chain track
and the lower scraper chain, thus making each part of the whole machine run
without noise, reducing an energy consumption of sliding friction, reducing a
thickness of the return material cleaning hopper, reducing a cost, and
prolonging a service life of the return material cleaning hopper and the
scraper
chain.
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Date Recue/Date Received 2022-10-31

Description

CA 03105398 2020-12-30
Fully Rolling Friction Chain Plate Carrier Wheel material feeder
Technical Field
The invention belongs to a mechanical field, in particular to a fully rolling
friction
chain plate carrier wheel feeder.
Background
At present, all the material feeders in use have complex structure, high
manufacturing cost and poor performance. For example, the old chain belt
material
feeder is composed of multiple armor pieces that are connected by multiple
threading
strips, and steel shafts that thread rows of multiple armor pieces are
connected by
multiple chains from two sides of the rows of armor pieces. There is leakage
of
material between the armor pieces. Even if a leak-proof strip is set between
the
armor pieces, the leak-proof strip is easy to fall off to often cause leakage.
The return
material at the gap between the armor pieces is serious. The use of multiple
chains
has complex structure, high manufacturing cost, complex process of
manufacturing
and threading the armor pieces, serious material waste and low production
efficiency.
Although the structure of a chain plate feeder is simple and the wear parts
are few in
the feeding process, its material scraping plate and retainer plate have
sliding friction.
Because the length of the material feeder is more than a few meters, the
material
scraping plate and the retainer plate are long distance sliding friction,
which causes
great friction resistance, high energy consumption, a lot of wear and tear,
and loud
noise. When the old scraper material feeder is used to transfer thousands of
tons of
coal, the materials at a bin opening is piled up at the tail of a scraper
conveyor, which
makes the material scraping plate and a scraping support plate convey
materials with
sliding friction under a high pressure of the bin and the piling up materials,
causing
serious mutual wear. Especially when the material feeder is restarted with
heavy load
after shutdown, a driving motor is often overloaded and burned due to large
sliding
friction resistance and overstocked material pile, resulting in short service
life of the
whole machine. Because the return material carried at two sides, higher than
the
retainer plate, of the material scraping plate is very serious, and the chain
of the
chain plate material feeder is provided inside a guiding groove, the materials
enter
into the gap of the chain to produce the return material. The chain plate
material
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CA 03105398 2020-12-30
feeder is mainly used for a coal system. Because coal mining uses a lot of
water to
reduce dust and the water content of the washed coal is greater, the coal
sludge
water flowing from the periphery of the retainer plate of the chain plate
material
feeder causes serious pollution and waste. In order to solve the problems of
material
leakage, coal sludge water leakage and return material, the lower part of the
frame of
the old chain belt material feeder and the chain plate material feeder is
added with a
return material collector, which increases the height of the whole machine and
adds a
complicated operation component of cleaning return coal. The old return
material
collector is equipped with a separate power drive mechanism, which is complex
in
structure, large in volume and weight, and occupies large space on site,
resulting in
large investment costs of site infrastructure and equipment. Because the power
drive
mechanism is provided separately, the return material collector is started
only after a
large amount of return coal is piled up on site. Due to the solidification and

compaction of coal sludge, the return material collector is broken, and the
motor is
burnt out and cannot work, which delays production, and increases equipment
input,
manufacturing cost and maintenance cost, but has a poor use effect, thus
further
causing the waste of manpower and material resources. In order to solve the
above
problems, through decades of manufacture and research, the invention puts
forward
a fully rolling friction chain plate carrier wheel material feeder.
Summary
The invention is implemented by the following technical solutions.
A fully rolling friction chain plate carrier wheel material feeder includes: a
guiding
groove, a support chain plate wheel, a support chain plate wheel supporter, a
scraper
chain, a material scraping plate, a wheel-guarding material-guiding support
plate, a
driving gear roller, a redirecting gear roller, a driver and a frame. The
guiding groove
is connected with a bin opening. A lower part of the guiding groove is
fastened to the
frame. The guiding groove is connected with the frame fixedly or movably. The
wheel-guarding material-guiding support plate is arranged at the lower part of
the
guiding groove and is supported by the frame, or is hooked up to the guiding
groove.
The material scraping plate is arranged between two scraper chains. The
support
chain plate wheel supporter includes a link support chain plate wheel track.
The link
support chain plate wheel track is arranged on the wheel-guarding material-
guiding
support plate or is integrated with the wheel-guarding material-guiding
support plate.
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CA 03105398 2020-12-30
The support chain plate wheels include a link support chain plate wheel, a
scraper
support chain plate wheel or a frame support chain plate wheel. The scraper
chain
includes a shaft threading link or a shaft roller link. The shaft threading
link is
composed of a chain connecting plate and a chain threading shaft, and the
shaft
roller link includes the chain connecting plate, the chain threading shaft and
a chain
roller. A width of the support chain plate wheel is less than a distance
between two
chain connecting plates, and the support chain plate wheel supports the chain
roller.
Or a width of the support chain plate wheel is greater than a distance between
two
chain connecting plates, and the support chain plate wheel supports the chain
connecting plate. When the link support chain plate wheel is used, the link
support
chain plate wheel is arranged on the chain threading shaft. The link support
chain
plate wheel is separately arranged or is integrated with a chain roller. The
wheel-guarding material-guiding support plate is provided with the link
support chain
plate wheel track. A width of the link support chain plate wheel track is less
than a
distance between two chain connecting plates. A height of the link support
chain plate
wheel track makes the link support chain plate wheel lift the material
scraping plate,
so that a gap forms between the material scraping plate and the wheel-guarding

material-guiding support plate, and the scraper chain and the material
scraping plate
run to scrape and load materials under the rolling support of the link support
chain
plate wheel. There is no sliding friction produced between the material
scraping plate
and the wheel-guarding material-guiding support plate. Or when the scraper
support
chain plate wheel is used, the scraper support chain plate wheel is arranged
on the
material scraping plate, and the material scraping plate runs to scrape and
load
materials under the rolling support of the scraper support chain plate wheel.
There is
no sliding friction produced between the material scraping plate and the
wheel-guarding material-guiding support plate. Or when the frame support chain

plate wheel is used, the frame support chain plate wheel is arranged between
the
driving gear roller and the redirecting gear roller. A position, corresponding
to the
frame support chain plate wheel, of the support chain plate wheel supporter is

supported by the frame. The support chain plate wheel supporter is connected
with
the frame separately or integrally. The driving gear roller and the
redirecting gear
roller are arranged in front of and behind the wheel-guarding material-guiding
support
plate. The scraper chain is buckled on the driving gear roller and the
redirecting gear
roller surrounding the wheel-guarding material-guiding support plate, the
driving gear
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CA 03105398 2020-12-30
roller, the frame support chain plate wheel and the redirecting gear roller.
The scraper
chain and the wheel-guarding material-guiding support plate are separated by a
gap.
The material scraping plate and the wheel-guarding material-guiding support
plate
are separated by a gap. An outer surface of the frame support chain plate
wheel is
higher than an upper end face of the wheel-guarding material-guiding support
plate.
The support chain plate wheel supporter is provided with a support chain plate
wheel
bearing or a support chain plate wheel shaft. When the support chain plate
wheel
supporter is provided with the support chain plate wheel bearing, the frame
support
chain plate wheel is provided with the support chain plate wheel shaft. The
support
chain plate wheel bearing supports the support chain plate wheel shaft to
rotate. The
frame support chain plate wheel is arranged near a bottom surface of an upper
chain
of the scraper chain. The scraper chain and the material scraping plate are
supported
by the frame support chain plate wheel. The scraper chain, the material
scraping
plate and the wheel-guarding material-guiding support plate are separated by
gaps.
The driver drives the driving gear roller to rotate. The scrapper chain drives
the
redirecting gear roller to rotate. The driving gear roller drives the scrapper
chain and
the material scrapping plate to rotate. The scraper chain and the material
scrapping
plate rotate to the frame support chain plate wheel and drive the frame
support chain
plate wheel to rotate. There is no sliding friction produced between the
scraper chain,
the material scraping plate and the frame support chain plate wheel, and there
is no
friction produced between the scraper chain and the wheel-guarding material-
guiding
support plate, between the material scraping plate and the wheel-guarding
material-guiding support plate. The frame support chain plate wheel rolls and
rotates
to support the scraper chain and the material scraping plate to convey
materials. Or
when the support chain plate wheel supporter is provided with the support
chain plate
wheel shaft, the frame support chain plate wheel includes the support chain
plate
wheel bearing, and the support chain plate wheel bearing is buckled and
sleeved on
the support chain plate wheel shaft. The scraper chain and the material
scraping
plate rotate to the frame support chain plate wheel and drive the frame
support chain
plate wheel to rotate. There is no sliding friction produced between the
scraper chain,
the material scraping plate and the frame support chain plate wheel, and there
is no
friction produced between the scraper chain and the wheel-guarding material-
guiding
support plate, between the material scraping plate and the wheel-guarding
material-guiding support plate. The frame support chain plate wheel rolls and
rotates
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CA 03105398 2020-12-30
to support the scraper chain and the material scraping plate to convey
materials,
which realizes fully rolling frictional material conveyance and material
loading of the
scraper feeder. The frame support chain plate wheel and the support chain
plate
wheel bearing are connected separately or integrally. The wheel-guarding
material-guiding support plate is a straight plate, or the part, near the
frame support
chain plate wheel, of the wheel-guarding material-guiding support plate is
provided
with a support chain plate wheel groove. The frame support chain plate wheel
extends out from the support chain plate wheel groove to lift the scraper
chain and
the material scraping plate. A lower part of the guiding groove near the
scraper chain
is set as a flat plate or the lower part of the guiding groove near the
scraper chain is
provided with a protective scraper chain and a protective chain plate wheel
baffle for
the support chain plate wheel. When the protective chain plate wheel baffle is
used, a
width of the protective chain plate wheel baffle is greater than a width from
an inner
wall of the guiding groove to the support chain plate wheel groove. The
protective
chain plate wheel baffle prevents materials from entering the support chain
plate
wheel groove and flowing to a lower part of the wheel-guarding material-
guiding
support plate. The power of the driver is reduced by using the support chain
plate
wheel, and the sliding friction loss between the scraper and the wheel-
guarding
material-guiding support plate is avoided, so that the material scraping plate
runs to
feed materials without noise and has long service life.
The support chain plate wheel shaft includes a half shaft or a through shaft.
The
support chain plate wheel is positioned with the support chain plate wheel
shaft by
means of a shaft shoulder, a spacer sleeve, a retainer ring, a baffle, a bolt,
a pressing
cover and/or a locating pin. The through shaft positions the support chain
plate
wheels on two ends to prevent the support chain plate wheels from tilting
under
heavy pressure.
The frame includes a return material cleaning hopper and a lower chain falling

material cleaning chain guide. The scraper chain rotates to an upper part of a

wheel-guarding retainer plate, which is called an upper scraper chain. The
scraper
chain rotates to a lower part of the wheel-guarding retainer plate, which is
called a
lower scraper chain. The return material cleaning hopper is arranged at the
frame
near the scraper chain and the material scraping plate that rotate to the
lower part of
the wheel-guarding retainer plate, and has a distance away from the scraper
chain
and the material scraping plate. The lower chain falling material cleaning
chain guide
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CA 03105398 2020-12-30
includes a pressing wheel chain guide or a catching groove chain guide. The
lower
chain falling material cleaning chain guide is arranged on the return material
cleaning
hopper or on the frame or on the support chain plate wheel supporter. The
pressing
wheel chain guide includes a pressing-down chain wheel chain guide or a
support
upper chain pressing-down chain wheel. When the pressing-down chain wheel
chain
guide is used, the pressing-down chain wheel chain guide and the support chain

plate wheel are arranged separately, and the pressing-down chain wheel chain
guide
presses a lower chain of the scraper chain. When the support upper chain
pressing-down chain wheel is used, the support upper chain pressing-down chain

wheel and the support chain plate wheel are arranged separately or integrally.
When
the support upper chain pressing-down chain wheel and the support chain plate
wheel are arranged integrally, an upper surface of the support upper chain
pressing-down chain wheel supports the scraper chain and the material scraping

plate on an upper part of the wheel-guarding material-guiding support plate,
and a
lower surface of the support upper chain pressing-down chain wheel is arranged
on
an upper part of a lower scraper chain and the material scraping plate to
limit the
lower scraper chain and the material scraping plate, so the lower scraper
chain and
the material scraping plate are limited by the support upper chain pressing-
down
chain wheel. When the catching groove chain guide is used, the catching groove

chain guide is arranged on the frame or on the return material cleaning
hopper. The
catching groove chain guide is buckled on the scraper chain and there is a gap

between the catching groove chain guide and the scraper chain, so as to limit
the
scraper chain to bounce. The lower chain falling material cleaning chain guide
limits
the scrapper chain and the material scraping plate that rotate to the lower
part of the
wheel-guarding material-guiding support plate, so that the scrapper chain and
the
material scraping plate that rotate to the lower part of the wheel-guarding
material-guiding support plate scrape the return coal and falling coal and
other
materials in the return material cleaning hopper onto the wheel-guarding
material-guiding support plate, and scrape the return coal and falling coal
and other
materials in the return material cleaning hopper to a loading and unloading
port for
transferring.
The frame or the return material cleaning hopper includes a lower material
cleaner. The lower material cleaner is arranged on the upper part of the
scraper chain
and the material scraping plate that rotate to the lower part of the wheel-
guarding
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CA 03105398 2020-12-30
material-guiding support plate, and is supported by the frame or the return
material
cleaning hopper. The lower material cleaner is arranged near the scraper chain
and
the material scraping plate that rotate to the lower part of the wheel-
guarding
material-guiding support plate and near a tail, so as to prevent material
jamming
between the scraper chain and the material scraping plate that rotate to the
lower
part of the wheel-guarding material-guiding support plate and the driving gear
roller at
the tail or the redirecting gear roller at the tail.
The return material cleaning hopper includes a left side plate, a right side
plate
and a material cleaning base plate. The left side plate includes a left
vertical side
plate and a left inclined side plate, and the right side plate includes a
right vertical
side plate and a right inclined side plate. The left vertical side plate and
the right
vertical side plate are arranged vertical to the material cleaning base plate.
The left
inclined side plate and the right inclined side plate are arranged inclined to
the
material cleaning base plate. The left inclined side plate guides the return
coal, the
coal sludge and other materials at a left side into the material cleaning base
plate,
and the right inclined side plate guides the return coal, the coal sludge and
other
materials at a right side into the material cleaning base plate, which is
convenient for
the scraper chain and the material scraping plate that rotate to the lower
part of the
wheel-guarding material-guiding support plate to scrape the return coal, the
falling
coal and other materials onto the wheel-guarding material-guiding support
plate for
transferring.
The return material cleaning hopper is arranged on a lower part of the fully
rolling
friction chain plate carrier wheel material feeder, and holds a falling coal,
a falling coal
sludge and the return coal on the fully rolling friction chain plate carrier
wheel material
feeder, which is convenient for the lower material scraping plate to scrape
the return
coal and the falling coal onto the wheel-guarding material-guiding support
plate. A tail
of the return material cleaning hopper is higher than the part, near a loading
and
unloading port, of the return material cleaning hopper relative to the ground,
so as to
make the coal sludge flow into the loading and unloading port for the next
conveyance. Or the return material cleaning hopper is provided with a water
guide
groove of material cleaning hopper. The water guide groove of material
cleaning
hopper guides the coal sludge into a sewage disposal facility or into a coal
sludge
collecting container to ensure a clean and environmental friendly site.
The left side plate and/or the right side plate is higher than the lower chain
falling
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CA 03105398 2020-12-30
material cleaning chain guide and the material scraping plate to prevent the
materials
from spilling from the left side plate and/or the right side plate.
A tail of the return material cleaning hopper is provided with a curved tail
drop
guide. The curved tail drop guide is arranged at a return part of scraper
chain facing
toward an unloading port; the curved tail drop guide is supported by the
return
material cleaning hopper or the frame. The curved tail drop guide is connected
with
the frame movably or integrally. An arc of the curved tail drop guide is not
less than
an arc of an arc surface of the scraper chain moving upward along the driving
gear
roller or the redirecting gear roller. A curved material guide channel is
formed
between the curved tail drop guide and a surface of the driving gear roller or
a
surface of the redirecting gear roller. The curved material guide channel is
beneficial
for the scraper chain to drive the material scraping plate to scrape the coal
and other
materials in the return material cleaning hopper to the wheel-guarding
retainer plate.
A height of the curved tail drop guide is higher than the material scraping
plate on the
driving gear roller and the redirecting gear roller, so as to prevent the
material
scraping plate from piling up the materials at the tail to spill. When the
curved tail
drop guide is connected with the frame movably, the frame is provided with a
connecting tail material guide component, and correspondingly, the curved tail
drop
guide is provided with a material guide connecting frame component. The
connecting
tail material guide component is connected with the material guide connecting
frame
component movably. When two-way feeding is needed, the material guide
connecting
frame component is removed from the connecting tail material guide component,
and
the driver drives the scraper chain to reverse, so as to realize reverse
feeding.
The curved tail drop guide includes a fixed curved tail drop guide or a
detachable
curved tail drop guide. When the detachable curved tail drop guide is used,
the
detachable curved tail drop guide includes an upper curved tail drop guide and
a
lower curved tail drop guide. The upper curved tail drop guide is movably
docked to
the lower curved tail drop guide. When the curved tail drop guide is blocked
or needs
to be repaired, the upper curved tail drop guide is removed, which facilitates

maintenance and observation.
The return material cleaning hopper includes a self-slip inclined base plate.
An
opening at an inclined angle of the self-slip inclined base plate faces toward
an
unloading port. The inclined angle is not less than the self-slip stacking
angle of
materials, so that the materials flow to the unloading port along the self-
slip inclined
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CA 03105398 2020-12-30
base plate. Or the return material cleaning hopper includes a base plate the
front
section of which folds downward; a section, close to the unloading port, of
the base
plate the front part of which folds downward is a front self-slip inclined
base plate,
and a section close to the tail is a rear flat base plate. The front self-slip
inclined base
plate makes the materials on the section close to the unloading port slide
along the
front self-slip inclined base plate into a next conveying mechanism. The rear
flat base
plate scrapes the materials close to the tail from the lower material scraping
plate to
the wheel-guarding material-guiding support plate to be conveyed to the
unloading
port. The base plate the front part of which folds downward reduces a height
of the
whole machine and reduces a load of scraping the return material.
The support chain plate wheel includes a gear support chain plate wheel or a
roller support chain plate wheel. The support chain plate wheel includes a
rubber
support chain plate wheel, a polyurethane support chain plate wheel, a nylon
support
chain plate wheel, a steel support chain plate wheel, an alloy support chain
plate
wheel, a cast iron support chain plate wheel, a plastic steel support chain
plate wheel,
an aluminum support chain plate wheel, a porcelain support chain plate wheel
or a
plastic support chain plate wheel. The use of the rubber support chain plate
wheel,
the polyurethane support chain plate wheel, the nylon support chain plate
wheel, the
plastic steel support chain plate wheel and the plastic support chain plate
wheel
improves the wear resistance of the support chain plate wheel, further reduces
the
feeding noise, optimizes the site environment, and prolongs the service life.
The return material cleaning hopper or the frame is provided with a support
lower
chain track. The support lower chain track matches with a roller sleeve of the
lower
scraper chain. A width of the support lower chain track is less than a
distance
between two chain connecting plates of the lower scraper chain. The roller
sleeve of
the lower scraper chain rolls along the support lower chain track, which
reduces the
friction resistance, and reduces the wear between the support lower chain
track and
the lower scraper chain.
Some embodiments of the invention have the following beneficial effects.
1. The guiding groove is connected with the bin opening; the lower part of the

guiding groove is fastened to the frame; the guiding groove is connected with
the
frame fixedly or movably; the wheel-guarding material-guiding support plate is

arranged at the lower part of the guiding groove and is supported by the
frame, or is
hooked up to the guiding groove; the material scraping plate is arranged
between two
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CA 03105398 2020-12-30
scraper chains; when the link support chain plate wheel is used, the link
support
chain plate wheel is arranged on the chain threading shaft; the link support
chain
plate wheel is separately arranged or is integrated with a chain roller; the
wheel-guarding material-guiding support plate is provided with the link
support chain
plate wheel track; the width of the link support chain plate wheel track is
less than the
distance between the two chain connecting plates; a height of the link support
chain
plate wheel track makes the link support chain plate wheel lift the material
scraping
plate, so that a gap forms between the material scraping plate and the
wheel-guarding material-guiding support plate, and the scraper chain and the
material scraping plate run to scrape and load materials under the rolling
support of
the link support chain plate wheel; there is no sliding friction produced
between the
material scraping plate and the wheel-guarding material-guiding support plate;
or
when the scraper support chain plate wheel is used, the scraper support chain
plate
wheel is arranged on the material scraping plate, and the material scraping
plate runs
to scrape and load materials under the rolling support of the scraper support
chain
plate wheel; there is no sliding friction produced between the material
scraping plate
and the wheel-guarding material-guiding support plate; or when the frame
support
chain plate wheel is used, the frame support chain plate wheel is arranged
between
the driving gear roller and the redirecting gear roller; the position,
corresponding to
the frame support chain plate wheel, of the support chain plate wheel
supporter is
supported by the frame; the driving gear roller and the redirecting gear
roller are
arranged in front of and behind the wheel-guarding material-guiding support
plate;
the scraper chain is fastened on the driving gear roller and the redirecting
gear roller
surrounding the wheel-guarding material-guiding support plate, the driving
gear roller,
the frame support chain plate wheel and the redirecting gear roller; the
scraper chain,
the material scraping plate and the wheel-guarding material-guiding support
plate are
separated by gaps; the outer surface of the frame support chain plate wheel is
higher
than the upper end face of the wheel-guarding material-guiding support plate;
the
support chain plate wheel supporter is provided with a support chain plate
wheel
bearing or a support chain plate wheel shaft; when the support chain plate
wheel
supporter is provided with the support chain plate wheel bearing, the frame
support
chain plate wheel is provided with the support chain plate wheel shaft; the
support
chain plate wheel bearing supports the support chain plate wheel shaft to
rotate; the
frame support chain plate wheel is arranged near the bottom surface of the
upper
Date Recue/Date Received 2020-12-30

CA 03105398 2020-12-30
chain of the scraper chain; the scraper chain and the material scraping plate
are
supported by the frame support chain plate wheel; the scraper chain, the
material
scraping plate and the wheel-guarding material-guiding support plate are
separated
by gaps; the driver drives the driving gear roller to rotate; the scrapper
chain drives
the redirecting gear roller to rotate; the driving gear roller drives the
scrapper chain
and the material scrapping plate to rotate; the scraper chain and the material

scrapping plate rotate to the frame support chain plate wheel and drive the
frame
support chain plate wheel to rotate; there are no sliding friction produced
between the
scraper chain and the frame support chain plate wheel, between the material
scraping plate and the frame support chain plate wheel, and there is no
friction
produced between the scraper chain, the material scraping plate and the
wheel-guarding material-guiding support plate; the frame support chain plate
wheel
rolls and rotates to support the scraper chain and the material scraping plate
to
convey materials; or when the support chain plate wheel supporter is provided
with
the support chain plate wheel shaft, the support chain plate wheel bearing is
buckled
and sleeved on the support chain plate wheel shaft, and the scraper chain and
the
material scrapping plate rotate to the frame support chain plate wheel and
drive the
frame support chain plate wheel to rotate; there is no sliding friction
produced
between the scraper chain, the material scraping plate and the frame support
chain
plate wheel, and there is no friction produced between the scraper chain, the
material
scraping plate and the wheel-guarding material-guiding support plate; the
frame
support chain plate wheel rolls and rotates to support the scraper chain and
the
material scraping plate to convey materials; in this way, fully rolling
frictional material
conveyance and material loading of the scrapper material feeder is
implemented, and
the frame support chain plate wheel extends out from the support chain plate
wheel
groove to lift the scraper chain and the material scraping plate; when the
protective
chain plate wheel baffle is used, the width of the protective chain plate
wheel baffle is
greater than the width from the inner wall of the guiding groove to the
support chain
plate wheel groove; the protective chain plate wheel baffle prevents materials
from
entering the support chain plate wheel groove and flowing to the lower part of
the
wheel-guarding material-guiding support plate, which avoids the sliding
friction loss
between the material scraping plate and the wheel-guarding material-guiding
support
plate; the support chain plate wheel avoids the sliding friction loss between
the
material scraping plate and the wheel-guarding material-guiding support plate,
11
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CA 03105398 2020-12-30
reduces the power of the driver, makes the material scraping plate feed
materials
without noise, thus greatly reducing the noise; more than one set of support
chain
plate wheel are arranged symmetrically, so that the material scraping plate
does not
produce the sliding friction with the retainer plate when running on the
retainer plate
with a length of several meters to dozens of meters, thus completely changing
the
structure principle of sliding friction between the scraper chain, the
material scraping
plate and the scraping support plate, changing the sliding friction into the
rolling
friction, greatly reducing the running friction resistance, and reducing the
energy
consumption by more than 50 percent; the material scraping plate basically has
no
wear and tear, the maintenance amount is small, manpower and material
resources
and time are saved, the rolling friction noise is low, the feeding amount is
large and
the efficiency is high, and the service life of the whole machine is greatly
prolonged;
when the material feeder of the invention is used to transfer thousands of
tons of coal,
the sliding friction structure of the material scraping plate and the scraping
support
plate is changed, and faults, for example, the chain is broken or the motor is
burnt,
will not occur, and the faults are caused by bulk accumulation of materials
that makes
the material scraping plate and the scraping support plate convey the
materials with
the sliding friction under a high pressure of the bin and the piling up
materials;
especially when the material feeder is restarted with heavy load after
shutdown,
because there is no sliding friction between the material scraping plate and
the
wheel-guarding material-guiding support plate, the material scraping plate is
supported by the support chain plate wheel to scrape and feed materials with
the
sliding friction, and the motor will not be burnt due to overload when the
material
feeder is started or conveys materials, thus avoiding the occurrence of
serious
accident on site, greatly improving the feeding efficiency and greatly
prolonging the
service life of the whole machine.
2. The support chain plate wheel is positioned with the support chain plate
wheel
shaft by means of the shaft shoulder, the spacer sleeve, the retainer ring,
the baffle,
the bolt, the pressing cover and/or the locating pin; the through shaft
positions the
support chain plate wheels on two ends to prevent the support chain plate
wheels
from tilting under heavy pressure, thus prolonging the service life of the
support chain
plate wheel and improving the stability of the whole machine.
3. With the help of running power and components of the main conveyed
material, the material scraping plate of a return material cleaning scraper
conveyor
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CA 03105398 2020-12-30
and the material scraping plate of the main conveyed material are the same
part,
which automatically cleans the return material and the falling material while
conveying the materials; in this way, the problems of the old return material
cleaner
that because the power is set separately, the return material collector is
started only
after a large amount of return coal is piled up on site, and due to the
solidification and
compaction of coal sludge, the return material collector is broken, and the
motor is
burnt out and cannot work, which delays production are thoroughly solved.
4. The return material cleaning hopper is arranged at the frame near the
scraper
chain and the material scraping plate that rotate to the lower part of the
wheel-guarding retainer plate, and has a distance away from the scraper chain
and
the material scraping plate; the lower chain falling material cleaning chain
guide is
arranged on the return material cleaning hopper or on the frame or on the
support
chain plate wheel supporter; when the pressing-down chain wheel chain guide is

used, the pressing-down chain wheel chain guide and the support chain plate
wheel
are arranged separately, and the pressing-down chain wheel chain guide presses
the
lower chain of the scraper chain; when the support upper chain pressing-down
chain
wheel is used and the support upper chain pressing-down chain wheel and the
support chain plate wheel are arranged integrally, the upper surface of the
support
upper chain pressing-down chain wheel supports the scraper chain and the
material
scraping plate on the upper part of the wheel-guarding material-guiding
support plate,
and the lower surface of the support upper chain pressing-down chain wheel is
arranged on the upper part of the lower scraper chain and the material
scraping plate
to limit the lower scraper chain and the material scraping plate, so the lower
scraper
chain and the material scraping plate are limited by the support upper chain
pressing-down chain wheel; the support upper chain pressing-down chain wheel
is
multi-purpose, that is, the support upper chain pressing-down chain wheel
supports
the upper scraper chain so that it does not sag, presses down the lower
scraper
chain so that it does not bounce, and tensions the scraper chain so that there
is no
sliding friction between the scraper chain and any component, so the support
upper
chain pressing-down chain wheel has advantages of many functions and few
parts,
no need to maintain and making the whole machine run stably with a long
service life;
when the catching groove chain guide is used, the catching groove chain guide
is
arranged on the frame or on the return material cleaning hopper; the catching
groove
chain guide is buckled on the scraper chain and there is a gap between it and
the
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CA 03105398 2020-12-30
scraper chain, so as to limit the scraper chain to bounce; the lower chain
falling
material cleaning chain guide limits the scrapper chain and the material
scraping
plate that rotate to the lower part of the wheel-guarding material-guiding
support plate,
so that the scrapper chain and the material scraping plate that rotate to the
lower part
of the wheel-guarding material-guiding support plate scrape the return coal
and
falling coal and other materials in the return material cleaning hopper onto
the
wheel-guarding material-guiding support plate, and scrape the return coal and
falling
coal and other materials in the return material cleaning hopper to the loading
and
unloading port for transferring, thus truly realizing clean feeding and
loading without
noise and pollution, making sure that the fully rolling friction chain plate
carrier wheel
feeder has no return coal, throughly changing the defects of the old scraper
material
feeder of environmental pollution and material waste caused by carrying the
return
coal, preventing the materials from piling and hardening on the lower part of
the fully
rolling friction chain plate carrier wheel feeder to cause the scraper chain
and the
material scraping plate to be locked by the hardened material pile, and
avoiding the
occurrence of production accidents caused by the breaking of the scraper
chain; the
fully rolling friction chain plate carrier wheel feeder of the invention
changes the
complex structural components of the conveying chain plate device and the
return
material cleaning device of the original scrapper material feeder to only
using a main
machine conveying chain plate, a lower material cleaning hopper and the lower
chain
drop feed chain guide to complete the process of transferring materials and
cleaning
the return material and falling material; in this way, the complex structures
of driving
parts, power parts and support parts of the return material collector known to

inventors are removed, and the structure is compact and simple; a scraper
chain is
multi-purpose, and there are less wearing parts, thus greatly reducing the
manufacturing cost, reducing the volume of the original chain plate material
feeder
with a coal cleaning device; the invention occupies less space, has high
material
cleaning strength, throughly solves the problems of the chain plate material
feeder
used for transferring for many years, such as large water content, large
transfer
quantity, serious scattering of the return coal on site, and environment
pollution and
resource waster caused by coal sludge spilling everywhere, reduces equipment
input
and maintenance cost, saves manpower, material resources, installation and
maintenance time, and ensures energy saving, environmental protection and
efficient
production on site.
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CA 03105398 2020-12-30
5. The lower material cleaner is arranged on the upper part of the scraper
chain
and the material scraping plate that rotate to the lower part of the wheel-
guarding
material-guiding support plate, and is supported by the frame or the return
material
cleaning hopper; the lower material cleaner is arranged near the scraper chain
and
the material scraping plate that rotate to the lower part of the wheel-
guarding
material-guiding support plate and near the tail, so as to prevent material
jamming
between the scraper chain and the material scraping plate that rotate to the
lower
part of the wheel-guarding material-guiding support plate and the driving gear
roller at
the tail or the redirecting gear roller at the tail; pushing the material to
the material
scraping plate is convenient for the material scraping plate to scrape the
return coal
onto the wheel-guarding material-guiding support plate, which prevents the
failures
that the material scraping plate is locked and the broken caused by material
jamming
at the tail, greatly reduces drive resistance of the scraper chain, prolongs
the service
life of the power parts and the drive parts, and saves energy and protects
environment.
6. The left vertical side plate and the right vertical side plate are arranged
vertical
to the material cleaning base plate; the left inclined side plate and the
right inclined
side plate are arranged inclined to the material cleaning base plate; the left
inclined
side plate guides the return coal and the coal sludge at the left side into
the material
cleaning base plate, and the right inclined side plate guides the return coal
and the
coal sludge at the right side into the material cleaning base plate, which is
convenient
for the scraper chain and the material scraping plate that rotate to the lower
part of
the wheel-guarding material-guiding support plate to scrape the return coal
and the
falling coal onto the wheel-guarding material-guiding support plate for
transferring;
the structure is simple and practical, and the effect is good.
7. The return material cleaning hopper is arranged on the lower part of the
fully
rolling friction chain plate carrier wheel material feeder, and holds the
falling coal, the
falling coal sludge and the return coal on the fully rolling friction chain
plate carrier
wheel material feeder, which is convenient for the lower material scraping
plate to
scrape the return coal and the falling coal onto the wheel-guarding material-
guiding
support plate; the tail of the return material cleaning hopper is higher than
the part,
near the loading and unloading port, of the return material cleaning hopper
relative to
the ground, so as to make the coal sludge flow into the loading and unloading
port for
the next conveyance; or the return material cleaning hopper is provided with a
water
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CA 03105398 2020-12-30
guide groove of material cleaning hopper; the water guide groove of material
cleaning
hopper guides the coal sludge into a sewage disposal facility or into a coal
sludge
collecting container, thus ensuring a clean and environmental friendly site,
thus
improving the efficiency of waste recovery.
8. The left side plate and/or the right side plate is higher than the lower
chain
falling material cleaning chain guide and the material scraping plate to
prevent the
materials from spilling from the left side plate and/or the right side plate,
thus
ensuring no pollution, no waste and high efficiency in all directions.
9. The curved tail drop guide is arranged at a return part of scraper chain
facing
toward the unloading port; the curved tail drop guide is supported by the
return
material cleaning hopper or the frame; the arc of the curved tail drop guide
is not less
than the arc of an arc surface of the scraper chain moving upward along the
driving
gear roller or the redirecting gear roller; a curved material guide channel is
formed
between the curved tail drop guide and the surface of the driving gear roller
or the
surface of the redirecting gear roller; the curved material guide channel is
beneficial
for the scraper chain to drive the material scraping plate to scrape the coal
and other
materials in the return material cleaning hopper to the wheel-guarding
retainer plate;
the height of the curved tail drop guide is higher than the material scraping
plate on
the driving gear roller and the redirecting gear roller, so as to prevent the
material
scraping plate from piling up the materials at the tail to spill; when the
curved tail drop
guide is connected with the frame movably, the frame is provided with a
connecting
tail material guide component which is connected with the material guide
connecting frame component movably; when two-way feeding is needed, the
material
guide connecting frame component is removed from the connecting tail material
guide component, and the driver drives the scraper chain to reverse, so as to
realize
reverse feeding, thus scraping the return material from the tail to a material
falling
opening smoothly, ensuring that the site is clean and pollution-free, avoiding
the
waste of materials, and saving manpower and material resources and time.
10. When the detachable curved tail drop guide is used, the upper curved tail
drop guide is movably docked to the lower curved tail drop guide, and when the

curved tail drop guide is blocked or needs to be repaired, the upper curved
tail drop
guide is removed, which facilitates maintenance and observation; so, it is
simple and
fast to remove, the maintenance efficiency is high, structural configurations
and
functions are complete, details are perfect, and the use effect is good.
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1. The opening at the inclined angle of the self-slip inclined base plate
faces
toward the unloading port, and the inclined angle is not less than the self-
slip stacking
angle of materials, so that the materials flow to the unloading port along the
self-slip
inclined base plate; the section, close to the unloading port, of the base
plate the
front part of which folds downward is a front self-slip inclined base plate,
and the
section close to the tail is a rear flat base plate; the front self-slip
inclined base plate
makes the materials on the section close to the unloading port slide along the
front
self-slip inclined base plate into the next conveying mechanism; the rear flat
base
plate scrapes the materials close to the tail from the lower material scraping
plate to
the wheel-guarding material-guiding support plate to be conveyed to the
unloading
port; the base plate the front part of which folds downward reduces the height
of the
whole machine and guides the return material into the unloading opening by
using
the characteristic of material slipping on the inclined base plate, thus
reducing the
load of scraping the return material, reducing the power consumption of
scraping the
return material, and improving the efficiency of conveying materials.
12. The rubber support chain plate wheel, the polyurethane support chain plate

wheel, the nylon support chain plate wheel, the plastic steel support chain
plate
wheel and the plastic support chain plate wheel are used, thus improving the
wear
resistance of the support chain plate wheel, further reducing the feeding
noise,
optimizing the site environment, and prolonging the service life.
13. The roller sleeve of the lower scraper chain rolls along the support lower

chain track, thus reducing the frictional resistance and the wear between the
support
lower chain track and the lower scraper chain.
Brief Description of the Drawings
Fig. 1 is a front view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 1.
Fig. 2 is a left section view of a fully rolling friction chain plate carrier
wheel
material feeder in embodiment 1.
Fig. 3 is a left section view of a fully rolling friction chain plate carrier
wheel
material feeder in embodiment 2.
Fig. 4 is a front view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 3.
Fig. 5 is a front view of a fully rolling friction chain plate carrier wheel
material
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CA 03105398 2020-12-30
feeder in embodiment 4.
Fig. 6 is a left section view of a fully rolling friction chain plate carrier
wheel
material feeder in embodiment 5.
Fig. 7 is a front view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 6.
Fig. 8 is a partial schematic diagram of a fully rolling friction chain plate
carrier
wheel material feeder in embodiment 7.
Fig. 9 is a left view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 7.
Fig. 10 is a front view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 8.
Fig. 11 is a left view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 9.
Fig. 12 is a front view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 10.
Fig. 13 is a front view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 11.
Fig. 14 is a front view of a fully rolling friction chain plate carrier wheel
material
feeder in embodiment 12.
Fig. 15 is a left section view of a fully rolling friction chain plate carrier
wheel
material feeder in embodiment 12.
Fig. 16 is a left section view of a fully rolling friction chain plate carrier
wheel
material feeder in embodiment 13.
Fig. 17 is a partial schematic diagram of a fully rolling friction chain plate
carrier
wheel material feeder in embodiment 14.
Fig. 18 is a left section view of a fully rolling friction chain plate carrier
wheel
material feeder in embodiment 15.
Fig. 19 is a partial schematic diagram of a fully rolling friction chain plate
carrier
wheel material feeder in embodiment 16.
Fig. 20 is a partial schematic diagram of a fully rolling friction chain plate
carrier
wheel material feeder in embodiment 17.
Fig. 21 is a partial schematic diagram of a fully rolling friction chain plate
carrier
wheel material feeder in embodiment 18.
Fig. 22 is a partial schematic diagram of a fully rolling friction chain plate
carrier
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CA 03105398 2020-12-30
wheel material feeder in embodiment 19.
In the accompanying drawings: 1-guiding groove; 2-support chain plate wheel;
2.1-frame support chain plate wheel; 3-support chain plate wheel supporter;
4-scraper chain; 5-material scraping plate; 6-wheel-guarding material-guiding
support
plate; 7-driving gear roller; 8-redirecting gear roller; 9-driver; 10-frame;
11-bin
opening; 12-support chain plate wheel shaft; 13-support chain plate wheel
bearing;
14-protective chain plate wheel baffle; 15-wheel-guarding material-guiding
support
plate; 16-return material cleaning hopper; 17-lower chain drop feed chain
guide;
18-upper scraper chain; 19-lower scraper chain; 20-pressing wheel chain guide;

21-pressing-down chain wheel chain guide; 22-support upper chain pressing-down

chain wheel; 23-catching groove chain guide; 24-lower material cleaner; 25-
left side
plate; 26-right side plate; 27-material cleaning base plate; 28-left vertical
side plate;
29-left inclined side plate; 30-right vertical side plate; 31-right inclined
side plate;
32-curved tail drop guide; 33-water guide groove of material cleaning hopper;
34-self-slip inclined base plate; 35-base plate the front part of which folds
downward;
36-front self-slip inclined base plate; 37-rear flat base plate; 38-link
support chain
plate wheel; 39-shaft roller link; 40-chain connecting plate; 41-chain
threading shaft;
42-chain roller; 43-link support chain plate wheel track; 44-connecting tail
material
guide component ; 45-material guide connecting frame component; 46-scrapper
support chain plate wheel; 47-detachable curved tail drop guide; 48-upper
curved tail
drop guide; 49-lower curved tail drop guide; 50-support lower chain track; 51-
roller
sleeve; 52-shaft shoulder; 53-bolt; 54-retainer ring; 55-spacer sleeve; 56-
locating pin;
and 57-pressing cover.
Detailed Description of the Embodiments
Embodiment 1
As shown in Fig. 1 and Fig. 2, a fully rolling friction chain plate carrier
wheel
material feeder includes: a guiding groove 1, a support chain plate wheel 2, a
support
chain plate wheel supporter 3, a scraper chain 4, a material scraping plate 5,
a
wheel-guarding material-guiding support plate 6, a driving gear roller 7, a
redirecting
gear roller 8, a driver 9 and a frame 10. The guiding groove 1 is connected
with a bin
opening 11. A lower part of the guiding groove 1 is fastened to the frame 10.
The
guiding groove 1 is connected with the frame 10 fixedly or movably. The
support
chain plate wheel 2 includes a frame support chain plate wheel 2.1. The frame
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CA 03105398 2020-12-30
support chain plate wheel 2.1 is disposed between the driving gear roller 7
and the
redirecting gear roller 8. The position, corresponding to the frame support
chain plate
wheel 2.1, of the support chain plate wheel supporter 3 is supported by the
frame 10.
The wheel-guarding material-guiding support plate 6 is arranged at the lower
part of
the guiding groove 1 and is supported by the frame 10, or is hooked up to the
guiding
groove 1. The driving gear roller 7 and the redirecting gear roller 8 are
arranged in
front of and behind the wheel-guarding material-guiding support plate 6. The
scraper
chain 4 is fastened on the driving gear roller 7 and the redirecting gear
roller 8
surrounding the wheel-guarding material-guiding support plate 6, the driving
gear
roller 7, the frame support chain plate wheel 2.1 and the redirecting gear
roller 8. The
scraper chain 4, the material scraping plate 5 and the wheel-guarding
material-guiding support plate 6 are separated by gaps. The material scraping
plate 5
is arranged between two scraper chains 4. An outer surface of the frame
support
chain plate wheel 2.1 is higher than an upper end face of the wheel-guarding
material-guiding support plate 6. The support chain plate wheel supporter is
provided
with a support chain plate wheel bearing 13, and the frame support chain plate
wheel
2.1 is provided with a support chain plate wheel shaft 12. The support chain
plate
wheel bearing 13 supports the support chain plate wheel shaft 12 to rotate.
The
frame support chain plate wheel 2.1 is arranged near a bottom surface of an
upper
chain of the scraper chain 4. The scraper chain 4 and the material scraping
plate 5
are supported by the frame support chain plate wheel 2.1. The scraper chain 4,
the
material scraping plate 5 and the wheel-guarding material-guiding support
plate 6 are
provided by gaps. The driver 9 drives the driving gear roller 7 to rotate. The
scrapper
chain 4 drives the redirecting gear roller 8 to rotate. The driving gear
roller 7 drives
the scrapper chain 4 and the material scrapping plate 5 to rotate. The scraper
chain 4
and the material scrapping plate 5 rotate to the frame support chain plate
wheel 2.1
and drive the frame support chain plate wheel 2.1 to rotate. There is no
sliding friction
produced between the scraper chain 4 and the frame support chain plate wheel
2.1
and between the material scraping plate 5 and the frame support chain plate
wheel
2.1 , and there is no friction produced between the scraper chain 4, the
material
scraping plate 5 and the wheel-guarding material-guiding support plate 6. The
frame
support chain plate wheel 2.1 rolls and rotates to support the scraper chain 4
and the
material scraping plate 5 to convey materials. The part, near the frame
support chain
plate wheel 2.1, of the wheel-guarding material-guiding support plate 6 is
provided
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CA 03105398 2020-12-30
with a support chain plate wheel 2.1 groove. The frame support chain plate
wheel 2.1
extends out from the support chain plate wheel 2.1 groove to lift the scraper
chain 4
and the material scraping plate 5. The lower part of the guiding groove 1 near
the
scraper chain 4 is provided with a protective scraper chain 4 and a protective
chain
plate wheel baffle 14 of the support chain plate wheel 2.1. The width of the
protective
chain plate wheel baffle 14 is greater than a width from an inner wall of the
guiding
groove 1 to the support chain plate wheel 2.1 groove. The protective chain
plate
wheel baffle 14 prevents materials from entering the support chain plate wheel
2.1
groove and flowing to the lower part of the wheel-guarding material-guiding
support
plate 6. The power of the driver 9 is reduced by installing the support chain
plate
wheel 2.1, and the sliding friction loss between the scraper and the wheel-
guarding
material-guiding support plate 6 is avoided, so that the scraper runs to feed
materials
without noise and has long service life.
The support chain plate wheel 2 includes a gear support chain plate wheel or a

roller support chain plate wheel. The support chain plate wheel 2 may be a
rubber
support chain plate wheel, a polyurethane support chain plate wheel, a nylon
support
chain plate wheel, a steel support chain plate wheel, an alloy support chain
plate
wheel, a cast iron support chain plate wheel, a plastic steel support chain
plate wheel,
an aluminum support chain plate wheel, a porcelain support chain plate wheel
and a
plastic support chain plate wheel.
A width of the support chain plate wheel 2 is less than a distance between two

chain connecting plates. The support chain plate wheel supports the chain
roller, or
the width of the support chain plate wheel is greater than the distance
between two
chain connecting plates. The support chain plate wheel supports the chain
connecting plate.
Embodiment 2
As shown in Fig. 3, the support chain plate wheel supporter is provided with
the
support chain plate wheel shaft 12. The frame support chain plate wheel 2.1
includes
a support chain plate wheel bearing 13. The support chain plate wheel bearing
13 is
buckled and sleeved on the support chain plate wheel shaft 12. The scraper
chain 4
and the material scraping plate 5 rotate to the frame support chain plate
wheel 2.1
and drive the support chain plate wheel 2.1 to rotate. There is no sliding
friction
produced between the scraper chain 4, the material scraping plate 5 and the
frame
support chain plate wheel 2.1, and there is no friction produced between the
scraper
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CA 03105398 2020-12-30
chain 4, the material scraping plate 5 and the wheel-guarding material-guiding

support plate 6. The frame support chain plate wheel 2.1 rolls and rotates to
support
the scraper chain 4 and the material scraping plate 5 to convey materials. In
this way,
fully rolling frictional material conveyance and material loading of the
scrapper
material feeder is implemented. The wheel-guarding material-guiding support
plate
15 is a straight plate. A lower position, near the scraper chain 4, of the
guiding groove
1 is a flat plate. Installing the support chain plate wheel 2.1 reduces the
power of the
driver 9, avoids the sliding friction loss between the scraper and the wheel-
guarding
material-guiding support plate 6, greatly reduces the noise and prolongs the
service
life.
The rest are the same as embodiment 1.
Embodiment 3
As shown in Fig. 4, the frame 10 includes a return material cleaning hopper 16

and a lower chain falling material cleaning chain guide 17. The scraper chain
4
rotates to an upper part of a wheel-guarding retainer plate, which is called
an upper
scraper chain 18. The scraper chain 4 rotates to a lower part of the wheel-
guarding
retainer plate, which is called a lower scraper chain 19. The return material
cleaning
hopper 16 is arranged at the frame 10 near the scraper chain 4 and the
material
scraping plate 5 that rotate to the lower part of the wheel-guarding retainer
plate 6,
and has a distance away from the scraper chain 4 and the material scraping
plate 5.
The lower chain falling material cleaning chain guide 17 includes a pressing
wheel
chain guide 20. The lower chain falling material cleaning chain guide 17 is
arranged
on the return material cleaning hopper 16 or on the frame 10 or on the support
chain
plate wheel supporter 3. The pressing wheel chain guide 20 includes a
pressing-down chain wheel chain guide 21. The pressing-down chain wheel chain
guide 21 and the support chain plate wheel 2.1 are arranged separately. The
pressing-down chain wheel chain guide 21 presses a lower chain of the scraper
chain 4. The lower chain falling material cleaning chain guide limits the
scrapper
chain 4 and the material scraping plate 5 that rotate to the lower part of the

wheel-guarding material-guiding support plate 6, so that the scrapper chain 4
and the
material scraping plate 5 that rotate to the lower part of the wheel-guarding
material-guiding support plate 6 scrape the return coal and falling coal and
other
materials in the return material cleaning hopper 16 onto the wheel-guarding
material-guiding support plate 6, and scrape the return coal and falling coal
and other
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Date Recue/Date Received 2020-12-30

CA 03105398 2020-12-30
materials in the return material cleaning hopper 16 to a loading and unloading
port for
transferring.
The rest are the same as embodiment 1.
Embodiment 4
As shown in Fig. 5, the frame 10 includes a return material cleaning hopper 16

and a lower chain falling material cleaning chain guide 17. The scraper chain
4
rotates to an upper part of a wheel-guarding retainer plate, which is called
an upper
scraper chain 18. The scraper chain 4 rotates to a lower part of the wheel-
guarding
retainer plate, which is called a lower scraper chain 19. The return material
cleaning
hopper 16 is arranged at the frame 10 near the scraper chain 4 and the
material
scraping plate 5 that rotate to the lower part of the wheel-guarding retainer
plate 6
and the material scraping plate, and has a distance away from the scraper
chain 4
and the material scraping plate 5. The lower chain falling material cleaning
chain
guide 17 includes a pressing wheel chain guide 20. The lower chain falling
material
cleaning chain guide 17 is arranged on the return material cleaning hopper 16
or on
the frame 10 or on the support chain plate wheel supporter 3. The pressing
wheel
chain guide 20 includes a support upper chain pressing-down chain wheel 22.
The
support upper chain pressing-down chain wheel 22 and the frame support chain
plate
wheel 2.1 are arranged separately or integrally. When the support upper chain
pressing-down chain wheel 22 and the frame support chain plate wheel 2.1 are
arranged integrally, an upper surface of the support upper chain pressing-down
chain
wheel 22 supports the scraper chain 4 and the material scraping plate 5 on an
upper
part of the wheel-guarding material-guiding support plate 6. A lower surface
of the
support upper chain pressing-down chain wheel 22 is arranged on an upper part
of
the lower scraper chain 19 and the material scraping plate 5 to limit the
lower scraper
chain 19 and the material scraping plate 5, so the lower scraper chain 19 and
the
material scraping plate 5 are limited by the support upper chain pressing-down
chain
wheel 22. The lower chain drop feed chain guide 17 limits the scraper chain 4
and
the material scraping plate 5 that rotate to the lower part of the wheel-
guarding
material-guiding support plate 6, so that the scrapper chain 4 and the
material
scraping plate 5 that rotate to the lower part of the wheel-guarding material-
guiding
support plate 6 scrape the return coal and the falling coal in the return
material
cleaning hopper 16 onto the wheel-guarding material-guiding support plate 6,
and
scrape the return coal and the falling coal in the return material cleaning
hopper 16 to
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Date Recue/Date Received 2020-12-30

CA 03105398 2020-12-30
the loading and unloading port for transferring.
The rest are the same as embodiment 1.
Embodiment 5
As shown in Fig. 6, the frame 10 includes the return material cleaning hopper
16
and the lower chain falling material cleaning chain guide 17. The scraper
chain 4
rotates to an upper part of the wheel-guarding retainer plate, which is called
the
upper scraper chain 18. The scraper chain 4 rotates to a lower part of the
wheel-guarding retainer plate, which is called the lower scraper chain 19. The
return
material cleaning hopper 16 is arranged at the frame 10 near the scraper chain
4 and
the material scraping plate 5 that rotate to the lower part of the wheel-
guarding
retainer plate 6, and has a distance away from the scraper chain 4 and the
material
scraping plate 5. The lower chain falling material cleaning chain guide 17
includes a
catching groove chain guide 23. The catching groove chain guide 23 is arranged
on
the frame 10 or on the return material cleaning hopper 16. The catching groove
chain
guide 23 is fastened to the scraper chain 4 and there is a gap between them,
so as to
limit the scraper chain 4 to bounce. The lower chain falling material cleaning
chain
guide 17 limits the scrapper chain 4 and the material scraping plate 5 that
rotate to
the lower part of the wheel-guarding material-guiding support plate 6, so that
the
scrapper chain 4 and the material scraping plate 5 that rotate to the lower
part of the
wheel-guarding material-guiding support plate 6 scrape the return coal and
falling
coal and other materials in the return material cleaning hopper 16 onto the
wheel-guarding material-guiding support plate 6, and scrape the return coal
and
falling coal and other materials in the return material cleaning hopper 16 to
a loading
and unloading port for transferring.
The rest are the same as embodiment 1.
Embodiment 6
As shown in Fig. 7, a fully rolling friction chain plate carrier wheel
material feeder
is provided. The frame 10 or the return material cleaning hopper 16 includes a
lower
material cleaner 24. The lower material cleaner 24 is arranged on an upper
part of
the scraper chain 4 and the material scraping plate 5 that rotate to a lower
part of the
wheel-guarding material-guiding support plate 6, and is supported by the frame
10 or
the return material cleaning hopper 16. The lower material cleaner 24 is
arranged
near the scraper chain 4 and the material scraping plate 5 that rotate to the
lower part
of the wheel-guarding material-guiding support plate 6 and near the tail, so
as to
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CA 03105398 2020-12-30
prevent material jamming between the scraper chain 4 and the material scraping

plate 5 that rotate to the lower part of the wheel-guarding material-guiding
support
plate 6 and the driving gear roller 7 at the tail or the redirecting gear
roller 8 at the tail.
The rest are the same as embodiment 1.
Embodiment 7
As shown in Fig. 8 and Fig. 9, the return material cleaning hopper 16 includes
a
left side plate 25, a right side plate 26 and a material cleaning base plate
27. The left
side plate 25 includes a left vertical side plate 28 and a left inclined side
plate 29, and
the right side plate 26 includes a right vertical side plate 30 and a right
inclined side
plate 31. The left vertical side plate 28 and the right vertical side plate 30
are
arranged vertical to the material cleaning base plate 27. The left inclined
side plate
29 and the right inclined side plate 31 are arranged inclined to the material
cleaning
base plate 27. The left inclined side plate 29 guides the return coal and the
coal
sludge at the left side into the material cleaning base plate 27, and the
right inclined
side plate 31 guides the return coal and the coal sludge at the right side
into the
material cleaning base plate 27, which is convenient for the scraper chain 4
and the
material scraping plate 5 that rotate to the lower part of the wheel-guarding
material-guiding support plate 6 to scrape the return coal and the falling
coal onto the
wheel-guarding material-guiding support plate 6 for transferring.
The left side plate 25 and/or the right side plate 26 is higher than the lower
chain
falling material cleaning chain guide 17 and the material scraping plate 5 to
prevent
the materials from spilling from the left side plate 25 and/or the right side
plate 26.
The tail of the return material cleaning hopper 16 is provided with a curved
tail
drop guide 32. The curved tail drop guide 32 is arranged at a return part of
scraper
chain 4 facing toward an unloading port. The arc of the curved tail drop guide
32 is
not less than the arc of an arc surface of the scraper chain 4 moving upward
along
the driving gear roller 7 or the redirecting gear roller 8. A curved material
guide
channel is formed between the curved tail drop guide 32 and a surface of the
driving
gear roller 7 or a surface of the redirecting gear roller 8. The curved
material guide
channel is beneficial for the scraper chain 4 to drive the material scraping
plate to
scrape the coal in the return material cleaning hopper 16 to the wheel-
guarding
retainer plate 6. A height of the curved tail drop guide 32 is higher than the
material
scraping plate 5 on the driving gear roller 7 and the redirecting gear roller
8, so as to
prevent the material scraping plate 5 from piling up the materials at the tail
to spill.
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The rest are the same as embodiment 1.
Embodiment 8
As shown in Fig. 10, the return material cleaning hopper 16 is arranged at a
lower part of the fully rolling friction chain plate carrier wheel material
feeder, and
holds the falling coal, the falling coal sludge and the return coal on the
fully rolling
friction chain plate carrier wheel material feeder, which is convenient for
the lower
material scraping plate 5 to scrape the return coal and the falling coal onto
the
wheel-guarding material-guiding support plate 6. A tail of the return material
cleaning
hopper 16 is higher than the part, near the loading and unloading port, of the
return
material cleaning hopper 16 relative to the ground, so as to make the coal
sludge
flow into the loading and unloading port for the next conveyance.
The rest are the same as embodiment 1.
Embodiment 9
As shown in Fig. 11, the return material cleaning hopper 16 is provided with a

water guide groove of material cleaning hopper 33. The water guide groove of
material cleaning hopper 33 guides the coal sludge into a sewage disposal
facility or
into a coal sludge collecting container, which ensures a clean and
environmental
friendly site.
The rest are the same as embodiment 8.
Embodiment 10
As shown in Fig. 12, the return material cleaning hopper 16 includes a self-
slip
inclined base plate 34. An opening at an inclined angle of the self-slip
inclined base
plate 34 faces toward an unloading port, and the inclined angle is not less
than the
self-slip stacking angle of materials, so that the materials flow to the
unloading port
along the self-slip inclined base plate 34.
The rest are the same as embodiment 1.
Embodiment 11
As shown in Fig. 13, the return material cleaning hopper 16 includes a base
plate the front section of which folds downward 35. The section, close to the
unloading port, of the base plate the front part of which folds downward 35 is
a front
self-slip inclined base plate 36, and the section close to the tail is a rear
flat base
plate 37. The front self-slip inclined base plate 36 makes the materials on
the section
close to the unloading port slide along the front self-slip inclined base
plate 36 into
the next conveying mechanism. The rear flat base plate 37 scrapes the
materials
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CA 03105398 2020-12-30
close to the tail from the lower material scraping plate 5 to the wheel-
guarding
material-guiding support plate 6 to be conveyed to the unloading port. The
base plate
the front part of which folds downward 35 reduces a height of the whole
machine and
reduces the load of scraping the return material.
The rest are the same as embodiment 1.
Embodiment 12
As shown in Fig. 14 and Fig. 15, the support chain plate wheel 2 includes a
link
support chain plate wheel 38. The scraper chain 4 includes a shaft roller link
39. The
shaft roller link 39 includes the chain connecting plate 40, the chain
threading shaft
41 and a chain roller 42. The link support chain plate wheel 38 is arranged on
the
chain threading shaft 41. The link support chain plate wheel 38 is separately
arranged or is integrated with the chain roller 42. The wheel-guarding
material-guiding support plate 6 is provided with a link support chain plate
wheel
track 43. The link support chain plate wheel track 43 is arranged on the
wheel-guarding material-guiding support plate 6 and is integrated with the
wheel-guarding material-guiding support plate 6. A width of the link support
chain
plate wheel track 43 is less than a distance between two chain connecting
plates 40.
A height of the link support chain plate wheel track 43 makes the link support
chain
plate wheel 38 lift the material scraping plate 5, so that a gap forms between
the
material scraping plate 5 and the wheel-guarding material-guiding support
plate 6,
and the scraper chain 4 and the material scraping plate 5 run to scrape and
load
materials under a rolling support of the link support chain plate wheel 38.
There is no
sliding friction produced between the material scraping plate 5 and the
wheel-guarding material-guiding support plate 6.
The tail of the return material cleaning hopper 16 is provided with a curved
tail
drop guide 32. The curved tail drop guide 32 is arranged at a return part of
scraper
chain 4 facing toward an unloading port. The curved tail drop guide 32 is
supported
by the frame 10 or by the return material cleaning hopper 16. The curved tail
drop
guide 32 is connected with the frame 10 movably or integrally. When the curved
tail
drop guide 32 is connected with the frame 10 movably, the frame 10 is provided
with
a connecting tail material guide component 44, and correspondingly, the curved
tail
drop guide 32 is provided with a material guide connecting frame component 45.
The
connecting tail material guide component 44 is connected with the material
guide
connecting frame component 45 movably. When two-way feeding is needed, the
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CA 03105398 2020-12-30
material guide connecting frame component 45 is removed from the connecting
tail
material guide component 44, and the driver 9 drives the scraper chain 4 to
reverse,
so as to realize reverse feeding.
The rest are the same as embodiment 1.
Embodiment 13
As shown in Fig. 16, the support chain plate wheel 2 includes a scraper
support
chain plate wheel 46. When the scraper support chain plate wheel 46 is used,
the
scraper support chain plate wheel 46 is arranged on the material scraping
plate 5,
and the material scraping plate 5 runs to scrape and load materials under the
rolling
support of the scraper support chain plate wheel 46. There is no sliding
friction
produced between the material scraping plate 5 and the wheel-guarding
material-guiding support plate 6.
The rest are the same as embodiment 1.
Embodiment 14
As shown in Fig. 17, the curved tail drop guide 32 includes a fixed curved
tail
drop guide or a detachable curved tail drop guide 47. When the detachable
curved
tail drop guide 47 is used, the detachable curved tail drop guide 47 includes
an upper
curved tail drop guide 48 and a lower curved tail drop guide 49. The upper
curved tail
drop guide 48 is movably docked to the lower curved tail drop guide 49. When
the
curved tail drop guide 32 is blocked or needs to be repaired, the upper curved
tail
drop guide 48 is removed, which facilitates maintenance and observation.
The rest are the same as embodiment 1.
Embodiment 15
As shown in Fig. 18, the return material cleaning hopper 16 is provided with a

support lower chain track 50. The support lower chain track 50 may also be
arranged
on the frame 10, and matches with a roller sleeve 51 of the lower scraper
chain 19. A
width of the support lower chain track 50 is less than a distance between two
chain
connecting plates of the lower scraper chain 19. The roller sleeve 51 of the
lower
scraper chain 19 rolls along the support lower chain track 50, which reduces
the
friction resistance, and reduces the wear between the support lower chain
track 50
and the lower scraper chain 19.
The rest are the same as embodiment 1.
Embodiment 16
As shown in Fig. 19, the support chain plate wheel shaft 12 is a half shaft or
a
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CA 03105398 2020-12-30
through shaft. The support chain plate wheel 2 is positioned with the support
chain
plate wheel shaft 12 by means of a shaft shoulder 52, a bolt 53 and a retainer
ring 54
to prevent the support chain plate wheel 2 from moving.
The rest are the same as embodiment 1.
Embodiment 17
As shown in Fig. 20, the support chain plate wheel shaft 12 is a through
shaft.
The support chain plate wheel 2 is positioned with the support chain plate
wheel shaft
12 through a shaft shoulder 52 and a spacer sleeve 55. The through shaft
positions
the support chain plate wheels 2 on two ends to prevent the support chain
plate
wheels 2 from tilting under heavy pressure.
A width of the support chain plate wheel 2 is less than a distance between two

chain connecting plates 40. The support chain plate wheel 2 supports a chain
roller
42.
The rest are the same as embodiment 1.
Embodiment 18
As shown in Fig. 21, the support chain plate wheel shaft 12 is a through
shaft.
The support chain plate wheel 2 is positioned with the support chain plate
wheel shaft
12 through a shaft shoulder 52 and a locating pin 56. The through shaft
positions the
support chain plate wheels 2 on two ends to prevent the support chain plate
wheels 2
from tilting under heavy pressure.
A width of the support chain plate wheel 2 is greater than a distance between
two chain connecting plates 40. The support chain plate wheel 2 supports the
chain
connecting plate 40.
The rest are the same as embodiment 1.
Embodiment 19
As shown in Fig. 22, the support chain plate wheel shaft 12 is a through
shaft.
The support chain plate wheel 2 is positioned with the support chain plate
wheel shaft
12 through a spacer sleeve 55 and the pressing cover 57. The through shaft
positions the support chain plate wheels 2 on two ends to prevent the support
chain
plate wheels 2 from tilting under heavy pressure.
The rest are the same as embodiment 1.
29
Date Recue/Date Received 2020-12-30

Representative Drawing