JPS58185422A - Electric feed connecting and pressurizing device for graphitizing furnace of molded carbonaceous material - Google Patents

Abstract

PURPOSE:To simplify the processing of an terminal electrode at the side of opposite electric feed, and to make the maintenance and control of the titled device easy, by equipping the side of a pressure device with a member for connecting electric feed, providing the pressure device of the transfer type. CONSTITUTION:The truck 5 is made to run at the side of the mobile terminal electrodes 2 of the furnaces 1 for processing a molded carbonaceous material into graphite, and, at the outer side of rails the reaction force receiver walls 7 are set, facing the electrodes 2. The connecting copper plates 3 are attached through the electrical insulating plates 12 and the spring washers 9 to the tips of the pressure heads 41 fixed to the truck 5, and the copper plates 3 are connected to plural cables 6, respectively. The truck 5 having the pressure heads 41 in a withdrawn state is transferred to the furnaces 1, the hydraulic unit 8 is operated, the pressure heads 41 are advanced, and the terminal electrodes 2 are pressurized. Consequently, the copper plates 3 of the pressure heads 41 are firmly attached and pressed to the copper plates 10 of the opposing mobile terminal electrodes 2. When electricity is applied from the fixed terminal electrodes at the opposite side, the molded carbonaceous material C in the furnaces 1 is heated by the Joule heat of electric resistance, and it is processed into graphite.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pressurizing device for connecting a movable terminal on the anti-mold source side of a furnace for graphitizing a carbonaceous compact to power supply.

When graphitizing a carbon material, a method is adopted in which a large number of graphitization furnaces are installed and power is sequentially supplied to each part using a mobile power transformer. On this occasion,
The terminal electrode on the side of the counter-supply power source of the furnace is made of L[il'
It is constructed as a cylinder, and a predetermined pressure is applied from its end by a hydraulic cylinder body. Therefore, the two movable terminal electrodes in one furnace and the terminal electrodes in two adjacent furnaces are connected by a water-cooled cable or the like for each set outside the furnace. Therefore, this pressurized head connection + Jl construction is not only expensive but also difficult to maintain.

An object of the present invention is to provide a pressurized power supply connection device that can overcome the drawbacks of the prior art.

In order to achieve such an object, the present invention attaches a power supply connection member to the pressurizing device to obtain continuity between the movable terminal electrodes by applying pressure, and also makes the pressurizing device movable so that multiple units can be connected with one unit. This makes it possible to cover many furnaces.

The apparatus according to the present invention will be described below with reference to the drawings.
The figure shows an example in which two furnaces are connected to a pressurized power supply to a large number of furnaces installed in parallel.

The carbon compacts C are packed into each furnace 1 with one end in contact with a fixed terminal electrode connected to a power supply and the other end in contact with a movable terminal electrode 2 on the opposite power supply side. When the compact C is short, a plurality of the compacts are arranged in series and packed in a furnace. During graphitization, the pressurizing device is operated to bring the power supply connection member into contact with the movable terminal electrodes 2 to establish electrical continuity between the movable terminal electrodes 2 and to supply power.

On the side of the movable terminal electrode 2 of the furnace 1, a rail 11 on which the cart 5 runs is installed at a distance from the furnace 1 in the direction in which the furnaces 1 are arranged side by side. A reaction force receiving wall 7 faces the terminal electrode 2, respectively.
is installed. Two hydraulic cylinders 4, which form the main body of the pressurizing device, are mounted on the truck 5 via a pedestal 14 at equal intervals to one of the movable terminal electrodes 2. The trolley 5 can move automatically on the rail 11 by a motor (not shown), and its 'It[ is carried out by contact movement power supply.

Each oil IT:/Renoder 4 has its pressure head 41 hydraulically
)l l() presses the rotary terminal electrode 2, and a constant pressure can be applied to the carbon straight cedar body C following this 1. At the tip,
] As shown in FIG. 3, a connecting steel plate 3 is attached via an insulating plate 12 and a non-lithographic plate 9. The lever copper plates 3 are connected to each other with a plurality of cables 6, and the pressurizing head 41 is connected to movable terminals) -r+,i
% 2, each comes into contact with the connection copper plate 10 on the terminal electrode side via the power supply connection surface 13. It is desirable that the connection surfaces 13 of each copper plate 3 and 10 be plated with silver to reduce contact resistance.

This connecting surface 13 is not a half surface, but a concave one and a convex one.
It may be a 7-degree arc surface.

In such an apparatus configuration, the cart 5 with the pressurizing head 41 retracted is moved to the furnace 1 packed with the carbon compacts C, and the hydraulic unit 8 is operated to loosen the pressurizing head 41. and press the terminal electrode 2 at a predetermined pressure at the left end.

As a result, the copper plate 3 at the tip of the pressure head 41 is uniformly pressed against the copper plate 10 of the opposing movable terminal electrode 2, so that if power is supplied from the fixed terminal electrode on the opposite side,
The carbonaceous compact C in the furnace 1 is heated by Joule heat of electric resistance and graphitized. During this graphitization process, the compact C in the furnace 1 expands and contracts. The change is led out of the furnace via the movable terminal electrode 2, but since the processing head 41 can move back and forth under the action of the hydraulic unit 8, a constant pressure acts on the molded product C inside the furnace 1. As the movable terminal electrode 2 is pressurized, the reaction force acts on the cart 5 side, but if the cart 5 and the pedestal 14 are made slidable via anti-vibration rubber etc., the reaction force can be absorbed. It is supported by the wall 7 via the platform 14, and the load on the truck 5 can be alleviated.

If the energization is stopped after the required time has elapsed and the hydraulic cylinder 4 is returned to its original position, as the pressure head 41 moves back, the
The copper plate 3 set aside in part 7ii 5 is also a movable terminal N.
Stay away from pole 2. As a result, the tension supported by the wall 7 is released, so the pedestal 14 separates from the wall 7 and the cart 5 is released. In this state, the cart 5 is moved to the next set of furnaces filled with furnaces, and each part is moved 1'l as described above.

By repeating this, you can cover as many furnaces as you want with one device.

As is clear from the explanation of iLl, the V&
Since the K and K units can be moved together, it not only reduces equipment costs, but also simplifies the processing of the terminal electrode on the counter-supply power supply side, making maintenance management easier. .

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the apparatus according to the present invention, Fig. 2 is a side view of the apparatus as seen from the graphitization furnace side, and Fig. 3
The figure is an explanatory diagram showing details of the supply connection section. l...graphitization furnace, 2...movable terminal electrode, 3 and 10...copper plate, 4...
...Hydraulic cylinder, 5...Dolly,
6... Cable, 7... Reaction force receiving wall,
8... Hydraulic unit, 9...
Spring washer, 11...Rail, 12...
...Insulating plate, 14...Case, 41...
Pressure head. No. tE ″Fj3yJ

Claims (1)

[Claims] 11 A cart is disposed on the side where the movable terminal electrodes of a large number of graphitization furnaces are arranged side by side so as to be movable in the direction in which the furnaces are arranged side by side, and a corresponding space is provided between the movable terminal electrodes adjacent to the cart. two pressurizing means placed at a distance and each having a pressurizing head movable toward the corresponding movable terminal; and two pressurizing means each attached to the tip of the pressurizing head and electrically connected to each other. The conductor is made of a carbonaceous material, and is configured such that the pressurizing head contacts the movable terminal electrode while pressurizing the movable terminal electrode and conducts between the movable terminal electrodes. Pressure power supply connection device for compact graphitization furnace.