DISPOSITIF VIBRATEUR DE LAITIERS

DEVICE FOR TH VIBRATION OF SLAGS

Abrégé anglais

ABSTRACT TO THE DISPLOSURE:
Device for the vibration of slags. It has a
vibrator and an immersible graphite component, the vibrator
being disposed in a mounting and cooling closed frame to the
bottom part of which the component is rigidly but removably
mounted. The upper part of the frame is connected, by means
of a damper, to a suspension device.

Revendications

The embodiments of the invention in which an
exclusive property or privilege is claimed are defined as
follows :
1. A device for the vibration of slags,
comprising a vibrator and an immersible component, wherein the
vibrator (2) is disposed in a mounting-cooling closed frame
(1), to the bottom part of which there is fastened rigidly, but
with possibility for disassembly, the immersible component (5),
while the upper part of the frame (1) is connected by means of
a damper (7) to a suspension device (8)
2. A device in accordance with claim 1,
wherein the immersible component (5) is made of graphite.

Description

This invention relates to a device ~or the vibration
of slags obtained during the melting of errous and non-ferrous
metals in metallurgy~ which serves for their improverishment or
for changing their granulometric composition.
There are known devices for vibrating, the so- ,
called immersible`vibrators used in building for compacting
concrete mi~tures. They consist usually of a housing, connected
by means of a damper to an electric motor which is fastened
above the surface to a bracket for supporting the vibrator.
The bottom part of the housing is closed and inside it there
is provided an exciter of vibrations, which can be a hollow
debalanced rotor. The torque of the electric motor is trans-
mitted to the debalanced rotor by means of driving shaft and
a clutch~
A drawback of this type of devices lies in that, in
spite of their use only in a small number of cases, they are
not suitable for the vibratio~ of molten slags since the tempe-
ratures of the latter axe very high; this makes the operation ~
of the movable parts in the immersed housing very difficult ~ ~ `
~0 or even impossible. The housing itself can be made of heat-
resistant material, but even in this case it will burn quickly~
thus making the use of the known vibrating devices for the
needs of metallurgy economically not advatageous.
It is, therefore, the object ~f this invention to
provide a device for the vibration of slags which can operate
for long periods of time at high temperatures, and which can
transmit totally the vibrations to the molten material and,
moreover, be of simple design.
This object is achieved by a vibrating device which~
comprises a vibrator, which is disposed in a mounting-cooling
closed frame In the bottom part of the frame there is fastened
rigidly an immersible heat-resistant component made preferably
~1- ~

o~ graphite, The upper part of the ~rame is connected by
means o~ a damper to the device for the suspension o the
vibrator.
The advantage sf the device of the invention lies
in its simpli~ied design and the ease of producing it. It makes
possible a maximum recovery of metal from the slag, as well as
the treatment of the slag in its preparation for nex-following
flotation, while changing its granulometric composition.
For a better understanding of the invention, refer-
ence should be made to the accompanying drawing in which thereis shown a vertical cross-sectional view of the device.
The device comprises a mounting-cooling closed
frame 1, inside which there disposed rigidly a vibrator 2, so
that it transmits totally the vibrations to the frame 1. In
the bottom part of frame 1 there is welded a clamp 3, in which
by means of bolts 4 there is astened a graphite component 5,
the axis of which is perpendicular and crosses the axis of
~ .
vibrator 2. In the upper part of frame 1 coaxially to the
graphite component S there is fastened a vertical axle 6, onto
which there is fastened a damper 7 made-up as a spiral spring,
fastened in its one end and touching with its other end the
box of the suspension device 8. To the cover of this box there
is provided an eyelet 9 for gripping.
When treating the slag in molten state there are
used several devices in one block, suspended on a common car-
rying Erame. After putting the vibrators into operation, the
devices are immersed into the melt and the produced vibrations
are propagated in the whole volume.
The accompanying drawing is intended to exemplify
the invention and to illustrate one embodiment of it, rather
than to limit its scopeO