KR102502491B1 - Flattening apparatus for filler material - Google Patents

Abstract

The present invention relates to a device for flattening filling materials, wherein crucible fragments scattered in a graphitization furnace are collected, and filling materials injected into the graphitization furnace are flattened, comprising: a transport part consisting of a pair of rails arranged on the upper surface of both furnace walls in the longitudinal direction of the graphitization furnace respectively and a pair of roller units installed on the rails, the roller units consisting of a plurality of rollers arranged on the rails and a driving motor for moving the rollers forward and backward; a supporting part consisting of a front frame and a rear frame, which are arranged in front of and behind the graphitization furnace in the longitudinal direction, the front frame and the rear frame having both ends fixed to the roller units; a filling material processing part including a pair of double-acting cylinders provided on the rear frame and operated by a signal of a control part and a molding die provided on a rod end part of each of the cylinders; a fragment processing part including an auxiliary rail provided between the front frame and the rear frame, a transporting unit provided on the auxiliary rail, a saddle connected to the transporting unit and mounted on the front frame to be able to move, a multistage boom provided on the saddle, a winch unit provided on the saddle and adjusting the ascent and descent of the boom according to the signal of the control part, and a tray provided on an inner-side boom of the boom to put crucible fragments exposed in the process of collecting filling materials and having the function of rotating in a vertical direction; and the control part for adjusting the operation of accessories of the configurations, wherein the filling material processing part and the fragment processing part are arranged in front of and behind the roller units.

Description

Flattening apparatus for filler material}

The present invention relates to a filler flattening device, and more particularly, to a filler flattening device for flattening a filler injected into a graphitization furnace through a cylinder and a forming die and collecting crucible fragments scattered in the graphitization furnace through a boom bar and a winch configuration. will be.

Artificial graphite is used in anode materials for secondary batteries, electrodes for iron and steel making, electrical discharge processing electrodes, nuclear fusion reactors, semiconductors and solar cells.

Such artificial graphite is obtained by heating a raw material (hereinafter referred to as 'raw material') in which carbon powder (mainly coke) is mixed with a binder, etc. at a high temperature (2000 ~ 3000 ° C) in a graphitization furnace. A mass-produced graphitization furnace of the acheson furnace type is used.

As shown in FIGS. 1 and 2 in the conventional mass-production type graphitization furnace, a plurality of graphitization furnaces 100 are arranged in parallel, and a crucible transfer operation unit 300 and a filler transfer operation unit 400 are disposed thereon. In addition, a conveyor device 500 is provided at one end of the graphitization furnace 100, and a carrying-in unit 600 and a carrying-out unit 700 are provided at both ends in the longitudinal direction of the conveyor device 500, respectively.

Looking at the mass production process of artificial graphite with reference to FIGS. 1 and 2, first, a plurality of crucibles containing raw materials are loaded on a pallet, and then the pallet is transferred to the input unit 600 using a transfer cart (A).

The pallet transferred to the input unit 600 is transferred to the work target graphitization furnace 100 through the conveyor device 500, and when the transfer is completed, the crucible is transferred to the graphitization furnace by the robot 370 provided in the crucible transfer operation unit 300. Charge into (100).

When the charging of the crucible is completed, the inside of the graphitization furnace 100 is filled with the filler through the hopper 470 provided in the filler transfer operation unit 400 so that the crucible is embedded in the filler, and when the embedding operation is completed, current is energized and the current is energized. The crucible is heated by the resistance heat generated from

When the heating is completed, the graphitization furnace 100 is cooled for a predetermined time, and when the cooling is completed, the filler is collected through the suction unit 490 provided in the filler transfer operation unit 400.

When the collection operation is completed, the crucible exposed to collection is reloaded onto the pallet waiting on the conveyor device 500 using the robot 370, and then the pallet is transferred to the delivery unit 700 and then waits for the delivery unit 700. The pallet is carried out to the next process place using the transfer cart (A) in progress.

Then, when the filler collection and crucible reloading operations are completed, the crucible transfer operation unit 300 and the filler transfer operation unit 400 are operated by a crane provided on the traveling rail 200 provided above the graphitization furnace 100 as follows. It is moved to the work target graphitization furnace 100 and the above work is repeatedly performed.

On the other hand, the crucible is easily damaged due to deterioration when repeatedly used at high temperatures, so fragments must be removed from time to time. In addition, in order to stably stand the crucible on the filler, an operation of flattening the filler injected into the hopper 470 is performed, and the crucible is usually charged in a multi-layer structure, and this flattening operation is repeated several times.

Currently, such filling material flattening work (hereinafter referred to as 'flattening work') and pottery fragment collection work (hereinafter referred to as 'collection work') are carried out manually by putting workers directly into the furnace. However, there is a difficulty in performing work in a considerably high temperature environment due to residual heat remaining in the furnace.

In addition, the depth of the furnace is more than about 5m, and it is a structure in which harmful gas (carbon monoxide) can easily remain inside the furnace, which increases the risk of gas poisoning. To prevent this, work wearing a gas mask in a high temperature environment I have a problem that needs to be done.

KR 10-2022-0061407 A 2022.05.13.

An object to be solved by the present invention is to provide a filler flattening device capable of flattening the filler filled in the graphitization furnace and collecting crucible fragments scattered in the graphitization furnace.

The filler flattening device of the present invention for solving the above problems is composed of a pair of rails respectively disposed on the upper surfaces of both furnace walls in the longitudinal direction of the graphitization furnace and a pair of roller units installed on the rails, the roller units A transfer unit comprising a plurality of rollers disposed on a rail and a driving motor for moving the rollers forward and backward; It consists of a front frame and a rear frame respectively disposed in the longitudinal direction of the graphitization furnace, and the front frame and the rear frame are supported at both ends fixed to the roller unit; A pair of double-acting cylinders provided on the rear frame and operated by a signal from a control unit. Filler processing unit including a molding die provided at the rod end of each cylinder; And an auxiliary rail provided between the front frame and the rear frame, a transfer unit provided on the auxiliary rail, a saddle connected to the transfer unit and movably mounted on the front frame, a multi-stage boom provided on the saddle, provided on the saddle and a winch unit for controlling the elevation of the boom by a signal from the control unit, a debris disposal unit including a tray provided on the inner boom of the boom and containing crucible fragments exposed during the filler collection process but having a vertical rotation function; And a controller for controlling the operation of the accessories of the components; and the filler processing unit and the debris processing unit are disposed in front and behind the roller unit.

In addition, in the filler flattening device of the present invention, a blade having an upward inclination angle is formed at the tip of the molding die, a plurality of cutting blades are protruded from the blade, and the cutting blade is provided in a wedge shape, but the center blade is downward It has an inclination angle, and a blade is formed at the rear of the molding die.

delete

In addition, in the filler flattening device of the present invention, in a state in which an auxiliary cylinder activated by the control signal is provided on the rear surface of the inner boom bar and a hinge member is provided at the lower end of the inner boom bar, a tray is provided on one side of the hinge member , The rod end of the auxiliary cylinder is coupled to the other side.

According to the filler flattening device of the present invention, the filler injected into the graphitization furnace through the cylinder, the forming die, and the blade can be effectively flattened, and the crucible fragments scattered in the graphitization furnace can be easily collected through the boom, winch unit, and transfer unit. The convenience of the flattening operation and the convenience of the crucible fragment collection operation are improved.

In addition, according to the filler flattening device of the present invention, the convenience of the filler flattening operation and the automation of the crucible fragment collection operation improve the safety and production efficiency of the operation.

1 is a plan view showing a conventional mass production type graphitization furnace.
2 is a front view showing a conventional mass production type graphitization furnace.
3 is a perspective view showing the front of the filler flattening device according to the present invention.
4 is a perspective view showing the rear of the filler flattening device according to the present invention.
5 is a cross-sectional view of a mass-production type graphitization furnace showing open-air fillers.
6 is an enlarged side view of a forming die equipped with a blade and a cutting blade.
Figure 7 is a schematic diagram showing the coupling relationship between the tray and the auxiliary cylinder in the filler flattening device according to the present invention.
8 is a perspective view illustrating an embodiment of a tray in a filler flattening device according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

3 and 4, the filler flattening device of the present invention includes a conveying part 10, a support part 20 provided on the upper part of the conveying part 10, and a filler provided on one side of the support part 20 to perform a flattening operation. It consists of a processing unit 30 and a debris processing unit 40 provided on the other side to perform a collection operation and a control unit that controls the operation of accessories of the above components.

Hereinafter, the specific contents of the present invention will be described centering on the above configurations. First, the transfer unit 10 is a configuration for moving the apparatus of the present invention forward and backward along the graphitization furnace for flattening and collection operations, in the longitudinal direction of the graphitization furnace ( x) It consists of a pair of rails 11 respectively disposed on the upper surfaces of both furnace walls B and a pair of roller units 13 installed on the rails 11.

The roller unit 13 is composed of a plurality of rollers disposed on the rail 11 and a drive motor that moves the rollers forward and backward according to a control signal.

On the other hand, the flattening device of the present invention is carried out to another work target graphitization furnace through a crane when the flattening or collection work of a specific graphitization furnace is completed.

The support part 20 is composed of a rod-shaped front frame 21 and a rear frame 23 respectively disposed in the front and rear directions in the longitudinal direction (x) of the graphitization furnace, and each frame 21 and 23 has both ends of roller units ( 13) It is fixed on the upper surface.

The rear frame 23 is equipped with a filler processing unit 30 that performs a flattening operation, and in this operation, a large load is applied to push the filler, so that structural steel materials such as H-beams do not cause bending or torsional deformation. is preferably employed.

The filler processing unit 30 includes a pair of double-acting cylinders 31 provided on the rear frame 23 and operated by a signal from the control unit, and a molding die 35 provided at the rod end of each cylinder 31. include

The molding die 35 is a rectangular plate material having a long side corresponding to the furnace width, and functions like a plastering clay plate.

In the flattening process of the filler processing unit 30, first, the hopper H moves forward and backward in the furnace longitudinal direction (x) according to the instruction of the control unit, and the filler material is introduced into the graphitization furnace.

When the input operation is completed, the control unit of the present invention instructs the descending of the cylinder 31 rod in consideration of the height of the open storage of the filler, and moves the molding die 35 to an appropriate position (roughly 1/2 of the height h of the valley and the crest: see FIG. 5 ) to be set.

Next, when the roller unit 13 is instructed to move forward on the rail 11, the forming die 35 advances in conjunction with each other and pushes out the piled up filler, thereby achieving flattening.

Here, a plurality of hoppers (H) are usually arranged in parallel and move along the longitudinal direction (x) to inject the filler. As shown in FIG. A dog's valley (p) and crest (v) are created in the longitudinal direction (x), and a load is added to the forming die (35) due to this valley (p).

Accordingly, a means for preemptively collapsing the valley (p) prior to the main flattening operation may be provided in the molding die 35 .

For example, as shown in FIG. 6, a blade 36 and a cutting blade 37 are formed at the tip of the molding die 35. The blade 36 is an extension of the front end of the molding die 35 and is manufactured in a bent or round structure having an upward inclination angle θ.

The cutting blade 37 is manufactured in a wedge shape when viewed on a plane, and as shown in FIG. 6, the central blade 37 'of the cutting blade 37 has a downward inclination angle α and a downward slope angle structure is initiated.

In addition, the cutting blade 37 is disposed at a position corresponding to the valley p, and first collapses the valley p in the process of moving forward and disperses it left and right. Thereafter, a portion of the collapsed filling material fills the floor (v), and the blade 36 and the forming die 35 push the rest, so the load is reduced.

In addition, in the initial flattening operation of laying the filler on the bottom of the furnace, the work is performed in a state where the rod of the cylinder 31 is maximally lowered, so bending deformation may occur in the rod even with a small load. Waveform wrinkles may occur in the flattened surface layer due to dynamic behavior in the forward process, that is, behavior in which bending deformation and restoration are repeated.

In addition, when the rod is bent, filler dust is introduced into the inlet of the cylinder 31 through which the rod enters and exits, causing minor failure of the cylinder 31, which leads to a decrease in production efficiency, so the blade 36 and cutting blade 37 Initiation is strongly encouraged.

On the other hand, the crucible is charged in a multi-layer structure. Prior to the multi-layer charging operation, in the filling of the crucible directly below and forming a flat layer on top, an empty space between the crucibles is created due to incomplete embedding, and this empty space is suddenly filled If the upper part is sunk, it may interfere with the multi-layer charging operation.

In order to prevent this sinking, it is recommended to perform the flattening operation while reciprocating forward and backward.

The debris processing unit 40 is connected to the auxiliary rail 41 provided between the front frame 21 and the rear frame 23, the conveying unit 42 provided in the auxiliary rail 41, and the conveying unit 42, A saddle 43 movably mounted on the front frame 21, a multi-stage boom bar 44 provided on the saddle 43, and a signal provided on the saddle 43 and adjusting the elevation of the boom bar 44 by a signal from the control unit It includes a winch unit (not shown) and a tray 45 provided on the inner boom 44' of the boom 44 to contain the crucible fragments.

Since the fragments of the crucible are exposed in the process of collecting the filler, and the location thereof is also unspecified, in order for the tray 45 to approach the fragments, a transport means in a lateral direction (y) and an elevating means are required. The auxiliary rail 41 and the transfer unit 42 are used as the transverse direction (y) transfer means, and the boom 44 and the winch unit are used as the lifting means.

The detailed configuration of the transfer unit 42 is almost the same as that of the roller unit 13, and when the transfer unit 42 moves along the auxiliary rail 41 by a signal from the control unit, the saddle 43 and the saddle are interlocked with this. Transverse direction (y) transport of the boom 44 and the tray 45 mounted on (43) is performed.

The detailed configuration of the winch unit borrows a well-known technology, a detailed description thereof will be omitted.

On the other hand, a vision camera is further provided to find the debris prior to the collection operation. It is preferable that the vision camera has rotation and zoom functions so that the entire loading space (S) can be viewed and the process of putting fragments into the tray 45 can be closely monitored.

The vision camera is provided on the inner boom 44' or the saddle 43, and the image acquired by the vision camera is provided to the controller in real time.

In addition, the tray 45 is equipped with a vertical rotation operation (K) function so that the tray 45 can contain the debris without mistake and easily dump the debris into the collection box (A') of the transfer cart (A). desirable.

To this end, as shown in FIG. 7, an auxiliary cylinder 46 activated by a control signal is provided on one side of the inner boom 44', and a hinge member 45' is provided at the lower end of the inner boom 44'. In the state, when the hinge member 45 'is initiated in a structure in which the tray 45 is coupled to one side and the rod end of the auxiliary cylinder 46 to the other side, the extension and contraction of the rod causes the tray 45 to rotate vertically (K) This can be implemented to increase the collection efficiency.

On the other hand, when the forming die 35 or the tray 45 descends to the bottom of the furnace to flatten or collect, an accident may occur in which some of the rollers of the roller unit 13 derail from the rail 11 due to an unexpected overload. However, in the present invention, through the configuration in which the heavy filler processing unit 30 and the debris processing unit 40 are disposed in front and rear of the roller unit 13, the opposite configuration serves as a counterbalance to prevent such a derailment accident. can

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and it should be understood that the scope of the present invention extends to those within the scope substantially equivalent to the embodiments of the present invention. Various modifications and implementations are possible by those skilled in the art to which the invention pertains without departing from the spirit of the invention.

10: transfer part
11: rail 13: roller unit
20: support
21: front frame 23: rear frame
30: filler processing unit
31: cylinder 35: forming die
36: blade 37: cutting blade
40: debris processing unit
41: auxiliary rail 42: transfer unit
43: saddle 44: boom stand
45: tray 46: auxiliary cylinder

Claims (4)

It consists of a pair of rails 11 disposed on the upper surfaces of both furnace walls B in the longitudinal direction (x) of the graphitization furnace, and a pair of roller units 13 installed on the rails 11, the roller units (13) is a transfer unit 10 consisting of a plurality of rollers disposed on the rail 11 and a drive motor for moving the rollers forward and backward;
It consists of a front frame 21 and a rear frame 23 respectively disposed in the longitudinal direction (x) of the graphitization furnace, and both ends of the front frame 21 and the rear frame 23 are attached to the roller unit 13. A fixed support 20;
A filler processing unit 30 including a pair of double-acting cylinders 31 provided on the rear frame 23 and operated by a signal from a control unit, and a molding die 35 provided at the rod end of each cylinder 31 );
An auxiliary rail 41 provided between the front frame 21 and the rear frame 23, a transport unit 42 provided on the auxiliary rail 41, connected to the transport unit 42, and a front frame 21 A saddle 43 movably mounted on the saddle 43, a multi-stage boom 44 provided on the saddle 43, a winch unit provided on the saddle 43 and controlling the elevation of the boom 44 by a signal from a control unit, A debris processing unit 40 provided on the inner boom stage 44' of the boom stage 44 and including a tray 45 having a vertical rotation function to contain crucible fragments exposed during the filler collection process; and
a control unit for controlling the operation of accessories of the transfer unit 10, the filling material processing unit 30, and the debris processing unit 40;
made up of,
The filler flattening device, characterized in that the filler processing unit 30 and the debris processing unit 40 are disposed in front and behind the roller unit 13.
According to claim 1,
The molding die 35 has a blade 36 having an upward inclination angle θ at the front end, and a plurality of cutting blades 37 are protruding from the blade 36, and the cutting blade 37 is a wedge It is provided in a shape, but the central blade 37 'has a downward inclination angle α,
A filler flattening device, characterized in that a blade (36') is formed at the rear of the molding die (35).
delete According to claim 1,
The hinge member ( 45') A filler flattening device characterized in that the tray 45 is provided on one side and the rod end of the auxiliary cylinder 46 is coupled to the other side.

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