Method for preparing mould cover of carbon block on anode of heterogeneous edge table in use for electrolyzing aluminum

Abstract

The invention relates to a preparation method of a special-shaped prism anode carbon block mold cover for aluminum electrolysis, and belongs to the technical field of metallurgical electrolysis. The preparation method of the special-shaped prism anode carbon block mold cover for aluminum electrolysis is characterized in that it includes the following steps: firstly measure the dimensions of the corners of the original anode carbon block quadrangular truss-shaped forming mold cover 1, and plan out with steel according to the measured size. The special-shaped additional iron 2 is welded and attached to the two small sides 3 of the mold cover, and the 45-degree angle on the two small sides of the mold cover 1 is transformed into a 35-degree angle by using the angle-changing method; then measure the dimensions of the four small corners, and then plan out the special shape with steel planing Attach iron 4, after welding the four small corners of the mold cover, form the anode carbon block mold cover. The electrolytic cell processed and formed by the present invention uses special-shaped angular anode carbon blocks, and the insulation material at the top of the carbon block is easy to add, and the anode is not easy to oxidize at the cutting point of the anode middle seam; compared with the original square-shaped anode carbon block, the gross consumption of aluminum anode per ton is reduced About 8 kg or more.

Description

1. Technical field [0001] The invention relates to a preparation method of a special-shaped prism anode carbon block mold cover for aluminum electrolysis, and belongs to the technical field of metallurgical electrolysis. 2. Background technology [0002] At present, the preparation of the existing anode carbon block for aluminum electrolysis is to use the mold to change the anode carbon block into a square-shaped platform, which has the following disadvantages: the anode installed on the electrolytic cell is located at the cutting point of the electrolytic cell. Insulation material is not easy to add, resulting in serious anodic oxidation; and the weight of the residual pole is large, and the gross consumption of the anode is high. 3. Contents of the invention [0003] The purpose of the present invention is to solve the deficiencies in the prior art above, to provide a solution to the oxidation problem of the anode carbon block used in the electrolytic cell at the feeding...

AI Technical Summary

Problems solved by technology

[0002] At present, the preparation of the existing anode carbon block for aluminum electrolysis is to use the mold to change the anode carbon block into a square-shaped platform, which has the following disadvantages: the anode installed on the electrolytic cell is located at the cutting point of the electrolytic cell. Insulation material is not easy to add, resulting in serious anodic oxidation; and the weight of the residual pole is large, and the gross consumption of the anode is high

Images