Note: Descriptions are shown in the official language in which they were submitted.
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CARBON TREATMENT SYSTEM FOR SUPPLYING
DECOMPOSITION HEAT TO WASTE TIRES
TECHNICAL FIELD
[1] The present invention relates to a system for treating carbon generated
during the
decomposition process in a system for recycling waste tires comprising
thermally
decomposing waste tires that are industrial waste by direct heating, and
separating and
extracting various energy sources to be recycled. More particularly, the
present
invention relates to a carbon treatment system for supplying decomposition
heat to waste
tires that secures economic feasibility so that the heat generated during
combustion can
be recycled while increasing convenience in maintenance by simplifying the
structure.
BACKGROUND ART
[2] Recently, as the demand for vehicles is sharply on the rise, so does for
tires increases.
Accordingly, the quantity of waste tires also increases. As well known, waste
tires are
mainly made of synthetic polymer compounds, having about 34 MJ/kg of heating
value,
which is higher than the reference heating value of coal, 29MJ/kg.
[3] Further, except for iron core, fabrics such as nylon, etc., the average
composition of a
piece of tire is composed of 43.5 wt% of styrene-butadiene copolymer (SBR
polymer),
32.6 wt% of carbon black, 21.7 wt% of oil, and 2.2 wt% of additives such as
sulfur, zinc
oxide, etc.
[4] When combusting such waste tires, environmental contaminants such as
sulfur oxides,
unburned hydrocarbon, harmful gas, etc. are significantly emitted. Thus, the
Ministry
of Environment prohibits the use of waste tires as fuel.
[5] Accordingly, ways of using waste tires other than by combustion have been
studied,
and recycled products such as sidewalk blocks, reproduced tires, reproduced
rubbers,
artificial reefs, buffers of various structures, etc. are being produced, but
to a limited
scope. Further, in a product molding process for recycling, wastes and air
pollution are
another concern. In addition, there is still a problem of environmental
contamination
caused by wastes produced when the recycled products are discarded.
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[6] Meanwhile, methods for transforming the waste tires into fuel, not for
recycling them
have been attempted. For such transformation of waste tires into fuel, thermal
decomposition furnaces for thermally decomposing waste tires are employed.
According to heating methods, thermal decomposition furnaces are divided into
direct
heating type thermal decomposition furnaces and indirect heating type thermal
decomposition furnaces.
[7] Here, direct heating type thermal decomposition furnaces could face
explosion caused
by chemical reaction of spark produced when heating waste tires with oxygen
within the
thermal decomposition furnaces. Further, the oil produced from direct heating
type
thermal decomposition furnaces contains moisture and free carbon, which
deteriorate the
quality of the extracted oil.
[8] Meanwhile, indirect heating type thermal decomposition furnaces do not
have danger
of explosion of direct heating type thermal decomposition furnaces as
explained above.
However, because of low thermal efficiency, most of the oil obtained as a by-
product has
to be used as fuel. Thus, waste tires recycling systems wherein indirect
heating type
thermal decomposition furnaces are employed are economically infeasible and it
is
difficult to deal with carbon obtained as a by-product.
[9] In order to solve the above problems, the present applicant filed an
application for a
waste tire recycling system comprising extracting oil from waste tires by
direct heating,
and purifying the extracted oil to separate it into gasoline or diesel. The
application has
matured into Korean Patent No. 10-0628890.
[10] In brief review of the waste tire recycling system registered by the
present applicant,
the system is designed to put waste tires into a thermal decomposition
furnace, float a
carrier gas to extract and purify oil generated from the tires, and recycle
gas as energy
sources of the system.
[11] Meanwhile, the system is designed to incinerate waste carbon separated
during a
process of thermally decomposing waste tires, and resupply the heat generated
therefrom
to the thermal decomposition furnace.
[12] However, the waste tire recycling system already filed by the present
applicant has a
disadvantage that smooth incineration is not achieved in simple incineration
of carbon,
which results in significantly deteriorating operation efficiency of the
entire system.
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DETAILED DESCRIPTION OF THE INVENTION
TECHNICAL SUBJECT
[13] The present invention has been created in order to solve the above
problems that
existing techniques have. The present invention is to provide a carbon
treatment
system for supplying decomposition heat to waste tires, capable of preventing
the
generation of contaminants by increasing incineration efficiency of waste
carbon
contained in waste tires, and supplying heat source generated in combustion of
carbon to
a thermal decomposition furnace for thermally decomposing waste tires to
maximize the
economical operation thereof.
MEANS FOR SOLVING THE SUBJECT
[14] In order to achieve the above objects, a carbon treatment system for
supplying
decomposition heat to waste tires according to a desirable embodiment of the
present
invention is characterized by comprising a carbon storage tank which receives
carbon
separated from a thermal decomposition furnace for thermally decomposing waste
tires;
a burner which receives oil or gas contained in the steam generated during a
process of
thermally decomposing waste tires and burns the received oil or gas; and a
combustion
furnace arranged at one side of the burner to burn the carbon supplied by the
carbon
storage tank using the burner as an ignition source and connected to the
thermal
decomposition furnace (3) by pipe to supply heat generated during the
combustion to the
thermal decomposition furnace.
[15] A desirable characteristic according to the present invention lies in
that the combustion
furnace is connected to the carbon storage tank by a carbon supplying pipe to
receive
carbon from the carbon storage tank, and is connected to the thermal
decomposition
furnace by a heat source suuplying pipe and to supply heat generated to the
thermal
decomposition furnace when burning carbon.
[16] Another desirable characteristic according to the present invention lies
in that the
burner is configured to discharge flame at the bottom of inside the combustion
furnace,
and the combustion furnace is connected by pipe to inlet carbon to the upper
side of the
flame.
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[17] Another desirable characteristic according to the present invention lies
in that the
combustion furnace is configured to comprise a blowing element at one side so
that the
carbon supplied can be scattered.
[18] Another desirable characteristic according to the present invention lies
in that the
combustion furnace is arranged with a plate-type combustion plate punched with
holes
in same intervals at one part of inside the plate, and that a pipe to inlet
carbon is located
above the combustion plate and a burner discharging flame is located below the
combustion plate.
[19] Another desirable characteristic according to the present invention lies
in that the upper
part of the combustion plate comprises a plurality of heat congestion plates
placed to
intercross each other at intervals in a direction horizontal to each other, so
that the heat
generated during the combustion process is congested.
[20] Another desirable characteristic according to the present invention lies
in that a transfer
screw rotating in one direction by driving force of driving source is
installed in the
carbon supplying pipe connecting the combustion furnace and the carbon storage
tank.
[21] Another desirable characteristic according to the present invention lies
in that the
blowing element is a blow fan that operates the fan which receives power
supply from
outside.
[22] Another desirable characteristic according to the present invention lies
in that the
combustion furnace is connected to a cleaning distillation tower by piping to
remove
contaminants generated while burning carbon.
[23] A system for supplying decomposition heat to waste tires according to
another
desirable embodiment of the present invention is characterized by comprising a
carbon
storage tank which receives carbon in powder state; a burner which receives
oil or gas
from outside and burns the received oil or gas; a combustion furnace to which
an
exhaust pipe is connected to discharge heat generated and is connected to the
carbon
storage tank arranged at one side where carbon is supplied therefrom using the
burner as
ignition source; a transfer element comprising a driving motor installed at
the pipe
connecting the carbon storage tank and the combustion furnace to supply power
to the
element transferring carbon and generate driving force, and a transfer screw
connected
to the driving motor to rotate in one direction inside the pipe; a carbon
detector detecting
the amount of carbon stored in the carbon storage tank; a temperature detector
detecting
the temperature of the burner; and a controller electronically connected to
the carbon
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detector and temperature detector to receive detection information, so as to
selectively
control operation of the driving motor.
[24] The characteristics and advantages according to the present invention
will be more
clear by the following detailed descriptions based on the accompanying
drawings.
Meanwhile, the terms or words used in the specification and claims should not
be
interpreted as conventional and dictionary meanings, but should be interpreted
as
meanings and concepts in accordance with the technical idea of the present
invention
based on the principle that inventors can appropriately define concepts of
terms in order
to explain the invention the best possible way.
EFFECT OF THE INVENTION
[25] The thus-configured carbon treatment system for supplying decomposition
heat to
waste tires of the present invention completely burns the carbon separated
from waste
tires to prevent contamination and reutilizes the heat generated during
combustion to
maximize the economical operation thereof, and therefore is of great
industrial
usefulness.
BRIEF DISCRIPTION OF DRAWINGS
[26] Fig. 1 is a schematic drawing for explaining a carbon treatment system
for supplying
decomposition heat to waste tires according to the present invention.
[27] Fig. 2 is a drawing briefly showing a control circuit of a controller
according to the
present invention.
BEST EMBODIMENTS FOR CARRYING OUT THE INVENTION
[28] The objects, characteristics and advantages of the present invention
described above
will be more apparent by the following detailed descriptions.
[29] Hereinafter, with reference to the accompanying drawings, the desirable
embodiment
of the present invention will be described as follows.
[30] First of all, it should be noted that in the Figures, the same
constitutional elements or
components are represented by the same reference numerals as possible. In
describing
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the present invention, detailed explanations about relevant known functions or
configurations are omitted in order not to make the gist of the present
invention
ambiguous.
[31 ] Fig. 1 is a schematic drawing for explaining a carbon treatment system
for supplying
decomposition heat to waste tires according to the present invention, and Fig.
2 is a
drawing briefly showing a control circuit of a controller (c) according to the
present
invention.
[32] First, a known thermal decomposition furnace (3) for thermally
decomposing waste
tires extracts oil and incondensible gas during a process of thermally
decomposing
inputted waste tires, and separates carbon and iron core, which are residues.
The
present invention relates to a system for incinerating and treating carbon
among residues
which are separated during a process for thermally decomposing waste tires.
[33] With reference to the drawings, the present invention is configured to
comprise a
carbon storage tank (10) which receives carbon separated from a thermal
decomposition
furnace (3), a combustion furnace (30) that is connected by a pipe to the
carbon storage
tank (10) to selectively receive carbon and burn the carbon, and a burner (20)
arranged
at one side of the combustion furnace (30) to discharge flame inside the
combustion
furnace (30) to burn the carbon.
[34] The carbon storage tank (10) is connected to the thermal decomposition
furnace (3) by
a carbon supplying pipe (15a) to supply carbon, and is connected to the
thermal
decomposition furnace (3) by a heat source supplying pipe (15b) to supply heat
generated during the combustion of carbon to the thermal decomposition furnace
(3).
[35] Further, the carbon storage tank (10) is desirable to be connected to a
cleaning
distillation tower (40) to remove residual contaminants generated while
burning carbon.
Here, the cleaning distillation tower (40) may be performed by various known
techniques, and thus the detailed explanation thereon is omitted.
[36] Meanwhile, the drawings of the present invention exemplify a case where
the carbon
storage tank (10) is connected by piping to the thermal decomposition furnace
(3).
However, in case where it is difficult for the carbon storage tank (10) to
directly be
connected to the thermal decomposition furnace (3) positionally, it may be
modified to
the form of inputting collected carbon.
[37] In addition, in the carbon storage tank (10) of the present invention,
the carbon
supplying pipe (15a) is an element for inserting and moving the carbon into
the carbon
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storage tank (10), and a driving motor (16) that is the driving source
receiving power
from outside to generate driving force and a transfer screw (17) connected to
the driving
motor (16) and receiving the driving force to rotate in one direction, the
transfer screw
arranged inside the carbon supplying pipe (15a), are additionally installed.
[38] A burner (20) is a device for receiving gas or oil from outside to burn
using the
received gas or oil as fuel. Here, it may be configured to supply the fuel
from outside,
or configured to receive oil or gas included in vapor generated in the thermal
decomposition process of the thermal decomposition furnace (3) to burn using
the
received oil or gas as fuel. The burner (20) could be carried out by known
technologies,
so its detailed description will be omitted.
[39] The burner (20) of the present invention is configured to be arranged at
the bottom of
inside the combustion furnace (30) and discharge flame to the upper side of
the
combustion furnace (30) to burn the inlet carbon to the upper side of the
flame.
[40] The burner (20) having such configuration is integrally comprised with
the combustion
furnace (30) to be described below.
[41 ] The combustion furnace (30) is one type of incinerator, which is
arranged at one side of
the burner (20) and burns carbon supplied from the carbon storage tank (10)
using the
burner as an ignition source. Such combustion furnace (30) is piped to supply
heat
generated in the combustion process of carbon to the thermal decomposition
furnace (3).
[42] In other words, the combustion furnace (30) is connected to the carbon
storage tank
(10) by the carbon supplying pipe (15a) to receive carbon from the carbon
storage tank
(10), and is connected to the thermal decomposition furnace (3) by the heat
source
supplying pipe (15b) to supply heat generated when carbon is burned to the
thermal
decomposition furnace (3). Here, the carbon supplying pipe (15a) and the heat
source
supplying pipe (15b) may be configured to be selectively regulated by a valve.
[43] Meanwhile, the combustion furnace (30) is configured to receive blow
through a
blowing element (40) at an inner side so that the carbon supplied through the
carbon
supplying pipe (15a) can be smoothly burned inside. Here, as the blowing
element (40),
it is suggested to use the known blow fan receiving power from outside and
rotating a
fan to make breeze.
[44] In addition, the combustion furnace (30) of the present invention is
arranged with a
plate-type combustion plate (33) punched with holes in same intervals at one
part inside
the plate, and that the carbon supplying pipe (15a) inletting carbon is
located above the
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combustion plate (33) and a burner (20) discharging flame is located below the
combustion plate (33).
[45] The carbon inserted into the upper side of the combustion furnace (30) by
such
configuration is scattered by the blowing element (40) to be burned, and non-
burned
carbon is dropped at the upper surface of the punched combustion plate (33) to
be
burned.
[46] Meanwhile, the present invention suggests the configuration wherein in
the combustion
furnace (30), at the upper part of the combustion plate (33), a plurality of
heat
congestion plates (25) is placed to intercross each other at intervals in a
direction
perpendicular to each other, so that the heat generated during the combustion
process is
not to discharge to the heat source supplying pipe (15b) with fast speed.
[47] From such configuration, the heat generated in the combustion furnace
(30) may
congest the flow discharged to the heat source supplying pipe (15b) by the
plurality of
heat congestion plates (25).
[48] The carbon treatment system for supplying decomposition heat to decompose
waste
tires according to the present invention with the above configuration is
preferably
suggested to be connected to the thermal decomposition furnace (3), directly
receive
carbon to burn the carbon, and supply heat generated in the combustion process
to the
thermal decomposition furnace (3). However, in case where it is structurally
difficult
piping to the thermal decomposition furnace (3), they could be operated
independently.
[49] For example, the system may be configured to comprise a carbon storage
tank (10)
comprising a hopper to receive carbon collected from outside and use heat
generated in
the combustion process of the combustion furnace (30) receiving the carbon
from the
carbon storage tank (10) as industrial or home heat source.
[50] Fig. 2 is a schematic diagram briefly showing a control circuit of a
controller according
to the present invention.
[51 ] As shown in Fig. 2, the carbon treatment system (1) for supplying
decomposition heat
to decompose waste tires in the present embodiment comprises a carbon storage
tank
(10) which receives carbon powder with the particle size of 10gm-5mm and
stores the
carbon; a burner (20) arranged at one side of the carbon storage tank (10),
which
receives oil or gas from outside to generate flame; a combustion furnace (30)
that is one
type of incinerator, using the burner (20) as an ignition source and connected
to the
carbon storage tank (10) arranged at one side to selectively receive carbon to
burn the
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carbon; a transfer element supplying the carbon stored in the carbon storage
tank (10)
into the combustion furnace (30); respective detectors (sl, s2) detecting the
amount of
carbon and the temperature of the burner (20); and a controller (c) receiving
detecting
signals from these detectors (sl, s2) to control the transfer element.
[52] First, the carbon storage tank (10) is substantially the same as the
configuration of one
embodiment mentioned above. However, this may be independently operated
without
directly piping to the thermal decomposition furnace (3), and may collect
waste carbon
generated in the industrial sites or a waste tires recycling system and insert
it. Further,
the burner (20), the combustion furnace (30) and the transfer element are
substantially
the same as the configurations of the embodiment mentioned above, and thus
their
detailed descriptions will be omitted.
[53] In the present embodiment, the carbon detector (sl) detecting the amount
of carbon
stored in the carbon storage tank (10), and a temeperature detector (s2)
detecting the
temperature of the burner (20) are additionally installed, and a controller
(c) electrically
connected to these detectors (sl, s2) to receive detection information, so as
to selectively
control operation of the driving motor (16) configuring the transfer element.
[54] For example, if the carbon stored in the carbon storage tank (10) is less
then a preset
value, the carbon detector (sl) sends the detection signal to the controller
(c) to stop the
operation of the system.
[55] In addition, in case where the amount of carbon stored in the carbon
storage tank (10)
is at a proper level, if the temperature of the burner (20) is less than 300 ,
the
temperature detector (s2) sends the detection signal to the driving motor (16)
so as not to
inlet the carbon into the combustion furnace (30) to prevent the incomplete
combustion.
[56] Meanwhile, the present invention is not limited to examples described
above, and it is
apparent to those skilled in the art that various alternatives, modifications
and variations
can be made without departing from the idea and scope of the invention. Thus,
such
variations and modifications fall within the scope of the claims of the
present invention.
