Anode carbon block group for aluminum electrolysis cell

Abstract

The invention relates to an anode carbon block group, and particularly relates to an anode carbon block group for an aluminum electrolysis cell. The anode carbon block group for the aluminum electrolysis cell comprises an aluminum guide rod and two beam steel claws, wherein the two sides of the lower part of the aluminum guide rod are welded with the inner sides of the two beam steel claws through an explosive welding block respectively. The anode carbon block group provided by the invention has the advantages that the technical problem of carbon block fracture caused by the deformation of a one-part long-beam steel claw is solved; by adopting a mode of both short beam steel claws, the beam length is reduced, the deformation of the beam steel claws is reduced, and the damage and fracture of the anode carbon block caused by the thermal expansion of the steel claw beam is eliminated.

Description

technical field [0001] The invention relates to an anode carbon block group, in particular to an anode carbon block group for an aluminum electrolytic cell. Background technique [0002] In the modern electrolytic aluminum industry, the anode carbon block group of the aluminum electrolytic cell is used as the positive electrode of the electrolytic cell and participates in the normal reaction of the electrolytic cell. The anode carbon block is continuously consumed during the electrolysis process. After a certain period of time, the residual electrode is replaced. After processing, a new anode carbon block is assembled and returned to the electrolysis workshop for recycling. Usually, the anode carbon block group of the electrolytic cell is composed of anode carbon block, aluminum guide rod, explosive welding block, steel claw and phosphorus pig iron. When the anode carbon block group is assembled, the aluminum guide rod, explosive welding block and steel claw are welded tog...

AI Technical Summary

Problems solved by technology

During the normal production process of the electrolytic cell, the temperature of the anode carbon block group rises after being put into the electrolytic cell, and finally the temperatures of the steel claw and the carbon block reach 400°C and 900°C respectively, because the thermal expansion coefficient of the steel of the steel claw is larger than that of the carbon block About 4 times, so the expansion of the beam of the steel claw is larger than that of the anode carbon block, which causes the deformation of the carbon bowl of the anode carbon block, and the stress generated by the deformation is greater than the allowable stress of the carbon block, which causes cracks or even breakage of the anode carbon block

Affect the normal production of the electrolyzer

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