Process of forming grooves in the bottom and side of anode carbon block for aluminium electrolysis

Abstract

The present invention is process of producing prebaked anode block with grooves in bottom or side through die pressing under vibrating condition. The production process includes mainly a vertical paste distributing step capable of maintaining the flowability of the paste and a secondary cooling step to meet the requirement of demolding on the paste curing state. The production process has easy demolding, low power consumption and high production efficiency.

Description

technical field

[0001] The invention relates to a carbon material anode groove forming process, in particular to a mold method groove forming process at the bottom or side of a prebaked anode carbon block for aluminum electrolysis. Background technique

[0002] The electrolytic aluminum industry both at home and abroad needs to use prebaked anode carbon block as the anode of the electrolytic cell. At present, the bottom of the anode carbon block widely used is flat, so there is a slow heating rate and a large gas film resistance at the bottom of the anode, which increases power consumption. After using the anode carbon block with grooves on the bottom or side, a prebaked anode carbon block with fast heating speed and small gas film resistance at the bottom of the anode can be obtained, thereby reducing power consumption and carbon block consumption.

[0003] For anode carbon blocks with grooves on the bottom or sides, the grooves are generally 1 to 3 channels vertically or ...

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