Novel anode electric-conducting device for aluminum electrolytic cell

Abstract

The invention relates to a novel anode electric-conducting device for an aluminum electrolytic cell, which comprises an aluminum guide rod, an anode carbon block clamp holder and an anode carbon blockand is characterized in that the aluminum guide rod is connected with the anode carbon block through the anode carbon block clamp holder, and the anode carbon block clamp holder is in clamping connection with a boss at the upper part of the anode carbon block. By adopting the novel anode electric-conducting device for the aluminum electrolytic cell, since the changed assembly method of the prioranode steel stub, the ferrophosphorus ring and the anode carbon block is cancelled, the current of the aluminum guide rod is transferred to the anode carbon block by adopting a copper-carbon transition joint method, the voltage drop of the anode electric-conducting device can be reduced, the resistance power consumption of the electric-conducting structure of the aluminum electrolytic cell is reduced, and simultaneously, the assembly process cost of the anode carbon block and the pressure-disengaging process cost of the residual anode are both simplified.

Description

technical field [0001] A new type of aluminum electrolytic cell anode conductive device is mainly used in the production of aluminum electrolytic cells, that is, the assembly of aluminum guide rods and anode carbon blocks. Background technique [0002] The current general-purpose aluminum electrolytic cell anode conductive device is mainly composed of aluminum guide rods, explosive welding sheets, anode steel claws, anode carbon blocks and phosphorus iron rings. The anode steel claws and anode carbon blocks are formed by casting phosphorus iron rings. Connection of anode carbon blocks to steel claw heads. The anode conductive device of the aluminum electrolytic cell is not only a conductive part, but also a load-bearing part, so firstly, it must have a low resistance, secondly, it must have a certain tensile strength, and thirdly, it must have a certain high temperature resistance. [0003] The current general-purpose aluminum electrolytic cell anode conductive device mainl...

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Problems solved by technology

[0003] The current general-purpose aluminum electrolytic cell anode conductive device mainly has the following disadvantages: first, the iron-carbon contact resistance of the phosphorus-iron ring for connection between the anode steel claw and the anode carbon block is relatively large, and the average voltage drop is about 130mv; The phosphorus iron ring between the carbons adopts the hot casting process of molten cast iron, and the cost is relatively high. The third is that the separation of the anode butt and the phosphorus iron ring, and the separation of the phosphorus iron ring and the anode steel claw head adopts a mechanical pressing or hammering process, and the cost is relatively high. high

Fourth, the current density distribution of the anode carbon block is uneven due to the deformation of the anode steel claw and the partial pouring of the phosphorus iron ring.

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