JPS6132248B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an apparatus for pressurizing a movable terminal electrode of a furnace for graphitizing a carbonaceous compact.

When graphitizing a carbonaceous compact, a method is adopted in which a large number of furnaces are installed in parallel, and power is sequentially supplied to each furnace using a mobile power transformer. In this case, one terminal electrode of each furnace is configured to be movable so as to follow the expansion and contraction changes of the carbonaceous compact during the graphitization process, and a predetermined pressure is applied from the end thereof by a hydraulic cylinder or the like. However, installing one pressurizing means such as a hydraulic cylinder for each movable terminal electrode not only requires a large amount of equipment cost, but also poses problems such as hindering effective use of space. Further, there is a problem in that the device becomes larger if the reaction force at the time of pressurization is received only by the pressurizing means.

In view of these points, this invention separates the reaction force receiving part from the pressurizing means, and also makes the pressurizing means compact and movable between furnaces, making it possible to cover multiple furnaces with one device. This was done with the aim of providing a device that can.

The apparatus according to the present invention will be described below with reference to the drawings. The figures show an example of an apparatus that can be used for every two furnaces in a large number of furnaces installed in parallel. It can also be used when a base furnace is equipped with two movable terminal electrodes, and by reducing the number of pressurizing means, it can be used for each furnace.

Although not shown, the carbonaceous molded body to be graphitized is placed in a furnace 1 with one end in contact with a fixed terminal electrode connected to a power supply device and the other end in contact with a movable terminal electrode 2. Stuffed inside. When the carbonaceous molded bodies are short ones, a plurality of them are arranged in series like a single molded body and packed in a furnace. During graphitization, power is supplied from the fixed terminal electrode and through the cable 3 connected to the movable terminal electrode 2.

On the side of the movable terminal electrode 2 of the furnace 1, a rail 11 is laid a little away from the furnace 1 in the direction in which the furnaces 1 are arranged side by side, and on the outside thereof, a rail 11 is laid a little away from the rail 11 and facing the terminal electrode 2 of each furnace 1. A reaction force receiving wall 9 is installed. A truck 10 is disposed on the rail 11 and is equipped with two hydraulic cylinders 6 and their hydraulic unit 7, which form the main body of a pressurizing device. This trolley 10 is configured to be able to run on rails 11 by a motor, and is powered by contact moving power supply. Each hydraulic cylinder 6 has a pressurizing head 5 connected to a terminal electrode 2 by the action of a hydraulic unit 7.
The terminal electrode 2 is pressed against the terminal electrode 2 so that a constant pressure can always be applied to the carbon molded body that follows it. Each of the hydraulic cylinders 6 is placed on a truck 10 via a pedestal 8, and between the pedestal 8 and the truck 10, a vibration isolating rubber 12 is provided between the pedestals 8 and the truck 10. This makes it possible to reduce the reaction force exerted on the cart 10 during pressurization. Thus, one end of the pedestal 8 is adapted to come into contact with a wall 9 when the pressure head 5 contacts and pressurizes the terminal electrode 2.

In the figure, reference numeral 4 denotes a pressure-resistant insulating plate attached to the end face of the pressurizing head 5 for insulating the terminal electrode 2 and the pressurizing device.

In this configuration, the cart 10 with the pressurizing head 5 retracted is moved to the furnace 1 filled with carbonaceous compacts, electricity is supplied to the furnace 1, and the hydraulic unit 7 is operated. Pressure head 5
slowly move forward and pressurize the terminal electrode 2. At this time, a reaction force is applied to the cylinder 6 side, but since the pedestal 8 that supports the cylinder 6 can move relative to the cart 10, the reaction force is received by the wall 9 via the pedestal 8, and the cart 10 has almost no effect.

The carbonaceous molded body in the furnace is pressurized by Joule heat of electric resistance, heated to the required graphitization temperature, and graphitized. During this graphitization process, the carbonaceous compact in the furnace 1 expands and contracts. This change is led out of the furnace via the terminal electrode 2, but since the pressure head 5 moves back and forth following it, the pressure acting on the carbonaceous compact in the furnace is kept almost constant.

As the power to the furnace 1 is cut off, the hydraulic unit 7
When the cylinder 6 is returned to its original position, the pressurizing head 5 is retracted and the reaction force exerted on the wall 9 is released, so that the pedestal 8 is also returned to its original position. As a result, the cart 10 becomes movable, so by moving the cart 10 to the next packed furnace and repeating the above operation for each part, it is possible to cover multiple furnaces with one device. I can do it.

As is clear from the above description, in the device according to the present invention, the reaction force receiving part is separated from the pressurizing means, and the pressurizing means is made movable by a trolley, so that not only can the main body of the device be made compact, but also ,
It has the advantage of being able to cover multiple furnaces with a single device and significantly reducing equipment costs.

[Brief explanation of the drawing]

FIG. 1 is a top view showing an embodiment of the apparatus according to the present invention, and FIG. 2 is a side view thereof. 1...Furnace, 2...Movable terminal electrode, 3...
Cable, 4... Insulating plate, 5... Pressure head, 6
... Hydraulic cylinder, 8 ... pedestal, 9 ... reaction force receiving wall, 10 ... bogie, 11 ... rail, 12 ... anti-vibration rubber.

Claims (1)

[Claims] 1. On the side where the movable terminal electrodes of a plurality of graphitization furnaces are installed in parallel, there is a pressurizer that can run and move in the direction in which the graphitization furnaces are installed in parallel, and that can move forward and backward toward the movable terminal electrodes. A cart on which a pressurizing means equipped with a head is placed is arranged, and a reaction force is received at a position facing the movable terminal electrode of each graphitizing furnace with a running path of the cart sandwiched between it and the graphitizing furnace. The pressurizing means is placed on the truck via a pedestal that is movable in a direction perpendicular to the moving direction of the truck, and the pedestal is connected to a movable terminal electrode that the pressing head faces. 1. A pressurizing device for a carbonaceous compact graphitization furnace, characterized in that the pressurizing device is configured to be able to come into contact with the reaction force receiving wall while pressurizing the carbonaceous compact graphitization furnace.