Movable negative-pressure dust collecting and purifying system for aluminum electrolysis multifunctional unit

Abstract

The invention discloses a movable negative-pressure dust collecting and purifying system for an aluminum electrolysis multifunctional unit, and belongs to the technical field of non-ferrous metallurgical environmental protection. The movable negative-pressure dust collecting and purifying system for the aluminum electrolysis multifunctional unit comprises a negative-pressure dust collecting deviceand a dry-process purifying device, wherein the negative-pressure dust collecting device comprises a side telescopic structure and a top sealing structure; the side telescopic structure comprises a flexible side part outer cover, upper and lower telescopic brackets and an electric-control lifter; the top sealing structure comprises a flexible top outer cover, a slide framework, a collecting smoketube and a bottom wheel group; the dry-process purifying device comprises a fresh aluminum oxide box, a filter barrel type dust collector and a fluoride supported aluminum oxide box which are sequentially connected; and the filter barrel type dust collector communicates with the collecting smoke tube through an inlet flue. The movable negative-pressure dust collecting and purifying system for thealuminum electrolysis multifunctional unit is simple in structure, is low in operation cost, effectively collects unorganized smoke gas while an aluminum electrolysis cell performs pole changing operation and aluminum discharging operation, and reduces unorganized emission of electrolysis smoke gas.

Description

technical field [0001] The invention relates to the technical field of nonferrous metallurgy and environmental protection, in particular to a mobile negative pressure dust collection and purification system for an aluminum electrolysis multifunctional unit. Background technique [0002] In the process of large-scale aluminum electrolytic cells, effectively reducing the total discharge of pollutants is an important goal to respond to the call for energy conservation and emission reduction and lead the construction of clean factories. Electrolytic aluminum enterprises have been committed to adjusting production processes and adopting new environmental protection technologies to achieve energy conservation. emission reduction. [0003] In the production process of electrolytic aluminum, the operation of pole change process is mainly completed by the operation of multi-functional crown crane. During pole change, the smoke, heat, and fluoride emitted by the open chamber of the el...

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Problems solved by technology

[0003] In the production process of electrolytic aluminum, the operation of pole change process is mainly completed by the operation of multi-functional crown crane. During pole change, the smoke, heat, and fluoride emitted by the open chamber of the electrolytic cell and the replaced anode anode not only endanger the health of workers Healthy, which seriously pollutes the workshop environment, and the unorganized emission of smoke and fugitive dust, the unorganized smoke emission and the flying of particulate matter generated during the transportation of residual electrodes cannot be effectively controlled, and there are unpredictable environmental protection hazards

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