Anode carbon block group for aluminum electrolytic cell

Abstract

The invention relates to a structure of an anode carbon block set, and especially relates to an anode carbon block set, which has the advantages of energy saving and easiness for maintenance, for aluminum electrolytic tank. The anode carbon block set for aluminum electrolytic tank comprises an aluminum guide rod, a conductive steel column, and an anode carbon block; the aluminum guide rod is connected to the conductive steel column through a steel crossbeam; the lower of the conductive steel column is inserted into the anode carbon block; the steel crossbeam is composed of an upper aluminum plate and a lower steel plate; the aluminum guide rod is welded to the upper aluminum plate of the steel crossbeam or is connected to the upper aluminum plate of the steel crossbeam through a connection sheet; and the lower steel plate of the steel crossbeam is connected to the conductive steel column through steel-steel welding or casting. The anode carbon block set is very practical, the aluminum-steel explosive weld block in conventional anode set is cancelled, and part of steel claws are replaced by connection sheets for electric conduction to reduce the steel claw voltage.

Description

technical field [0001] The invention relates to an anode carbon block group structure, in particular to an energy-saving and easy-to-maintain anode carbon block group for an aluminum electrolytic cell. Background technique [0002] Metal aluminum is produced industrially by molten salt electrolysis, that is, electrolytically dissolving alumina in an electrolyte with molten cryolite as the main component. At present, the main method used is the Hall-Heroult electrolysis method. [0003] The direct equipment for the production of electrolytic aluminum is the electrolytic cell. The electrolytic cell is mainly composed of two parts, one is the anode and the other is the cathode. The anode carbon block group is used as the positive electrode of the electrolytic cell and participates in the normal reaction of the electrolytic cell. It is continuously consumed during the electrolysis process. After a certain period of time, the residual electrode is replaced. After being processed ...

AI Technical Summary

Problems solved by technology

Steel jaws of this structure are affected by the pouring process, such as the design of the mold, the temperature of the molten steel, the fluidity of the molten steel in the mold, the design of the exhaust, etc., usually causing defects such as pores, trachoma, and poor apparent quality. The resistivity increases, and the voltage drop of the anode steel claw increases

In addition, since the steel claw usually not only bears the weight of the carbon block, but also is a conductor, because the resistivity of the steel is relatively large, the voltage drop of the steel claw is also increased.

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