Collecting device for cathode square steel head smoke during roasting of aluminum electrolysis cell

Abstract

A collecting device for cathode square steel head smoke during roasting of an aluminum electrolysis cell is composed of an air collecting cover body, baffles, a transition pipe, a branch soft connecting pipe, a header soft connecting pipe, a header three-way pipe and a branch smoke pipe. The air collecting cover body is formed by tightly connecting a plurality of air collecting covers. Each air collecting cover is composed of an outer angle plate, an inner angle plate and an air hole. The baffles are arranged at the two ends of the air collecting cover body, so that the air collecting cover body and the two baffles form a closed space, and a negative pressure cavity is formed in the air collecting cover body. The transition pipe penetrates through the baffle arranged at one end of the aircollecting cover body and communicates with the negative pressure cavity. The other end of the transition pipe communicates with the branch soft connecting pipe. The branch soft connecting pipe communicates with the header soft connecting pipe through the header three-way pipe. The header three-way pipe is connected to the smoke pipe. The collecting device for cathode square steel head smoke during roasting of the aluminum electrolysis cell is used for centralized recovery of smoke through the negative pressure cavities formed between the outer angle plates and the inner angle plates of the air collecting covers in combination with a subsequent collecting pipeline, and avoids unorganized emission of smoke in the production process.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection in aluminum electrolysis production, and specifically relates to a device for collecting cathode square steel head smoke during the firing of an aluminum electrolytic cell. Background technique [0002] During the energization and roasting of the electrolytic cell, after the temperature of the cathode rises, a large amount of volatile matter will be exuded and a large amount of smoke will be generated at the cathode square steel head of each group of the A and B surface tank shells. The gap goes up into the electrolysis workshop, which is a type of unorganized discharge. It affects the working environment of the electrolysis workshop and endangers the health of employees. This phenomenon exists in all enterprises in the entire aluminum industry, and no effective and feasible solution has been found, and there is no relevant technical solution to learn from. Summary of the invention ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of unorganized discharge of smoke generated by the cathode square steel head during the firing of the electrolytic cell, and to provide a collection device for the smoke of the cathode square steel head during the firing of the aluminum electrolytic cell to prevent the fume from being disorganized pollute the environment

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