Method of reducing resistance of anode carbon block set

Abstract

A process for reducing electric resistance of anode carbon block group relates to improvement of inner structure of the anode carbon block group for aluminum electrolysis. Principally, an electric-conductive paste is poured into the hollow spaces and constringency gaps between the phosphorus hoop and the carbon bowls of carbon blocks, wherein the pulpous state electric conductor forms a solid conductor after drying, and then the phosphorus hoop and the carbon bowl walls of carbon blocks are cemented together more appropriately and more firmly. Said anode carbon block group can commendably eliminate the gaps and hollow spaces between the phosphorus hoop and the carbon bowls of carbon blocks, and then reduces the electric resistance and improves the electroconductivity at these positions, therefore it can drop down the voltage without changing the electrolytic tank pole clearance. If the voltage is not dropped down, the pole clearance is improved. Said invention can efficaciously reducethe electric power consumption per ton of aluminum and improve the electric effect.

Description

1. Technical field: [0001] The invention relates to the improvement of the internal structure of the anode carbon block group used for aluminum decomposition. 2. Background technology: [0002] The anode carbon block group is an important component of the aluminum electrolytic cell and mainly plays a conductive role. The anode carbon block group is generally composed of five parts: anode carbon block, steel claw, aluminum-iron explosive block, aluminum guide rod, and phosphorus pig iron casting ring. The phosphorus pig iron ring is formed by casting the molten phosphorus pig iron liquid in the gap between the carbon bowl and the steel claw of the carbon anode and cooling it. Its purpose is to connect the steel claw leg with the carbon block and play a conductive role. body function. The melting point of phosphorus pig iron is about 1400 degrees. The liquid phosphorus pig iron in the molten state must be cooled to room temperature rapidly after casting, and the volume shrin...

AI Technical Summary

Problems solved by technology

And every time 1mv is exceeded, the power consumption of ton of aluminum will increase by 3 kwh, and the increase of 50mv will increase the power consumption of ton of aluminum by 150 kwh, which is equivalent to reducing the power efficiency by 1%.

Images