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A gas collection method for electrolyzer overhaul

An electrolytic cell and gas collection technology, which is applied in the field of industrial aluminum electrolysis, can solve the problems of a large amount of dust and a great impact on the workshop environment, and achieve the effects of low cost, easy disassembly and movement, and high gas collection efficiency

Active Publication Date: 2021-08-31
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the overhaul of the electrolyzer, a large amount of dust and other pollutants are produced, which has a great impact on the workshop environment

Method used

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  • A gas collection method for electrolyzer overhaul

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Embodiment Construction

[0023] Below, the present invention will be described in detail in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited by the schematic diagrams.

[0024] Such as figure 1 As shown, the present invention is provided with gas collection device on electrolyzer, and gas collection device comprises dust collection cover 2, belt slideway support 3 and telescopic pipe 5, and pulley 4 is installed at the bottom of both ends of belt slideway support 3, two pulleys 4 are respectively located on the side plate 1 of the opposite electrolyzer, and the dust collection cover 2 is installed on the bracket 3 with slides. The opening direction corresponds to the electrolytic cell, the other end of the dust collection cover 2 communicates with the inlet of the dust collector 6 through the telescopic pipe 5 , and the outlet of the dust collector 6 communicates with the induced draft fan 7 . The telescopic pipe 5 can expand and contract ac...

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Abstract

The invention relates to the field of industrial aluminum electrolysis, in particular to a gas collection method for overhauling an electrolytic cell, which is suitable for reducing fugitive emissions during the overhaul of an electrolytic cell. A gas collecting device is added to the electrolytic cell, and an independent flue gas purification system is added near the overhaul cell in the electrolytic cell; when the electrolytic cell is overhauled, the flue gas generated during the planing process is collected by the gas collecting device, and then is cleaned by the flue gas purification system. Purify and discharge into the atmosphere. The method of the invention can greatly reduce the fugitive discharge during the overhaul of the electrolyzer, can collect and treat pollutants such as dust during the planing process, and does not introduce the original purification system. The method does not affect the normal planing work of the electrolyzer, meets the requirements of the working space, and adapts to the operation and environment of the electrolyzer.

Description

technical field [0001] The invention relates to the field of industrial aluminum electrolysis, in particular to a gas collection method for overhauling an electrolytic cell. Background technique [0002] The industrial aluminum electrolytic cell uses cryolite-alumina melt as the electrolyte and carbon material as the electrode for electrolysis. Liquid metal aluminum is precipitated on the cathode, and CO2 is produced on the anode. 2 The main gas. At the same time, the electrolytic cell emits harmful gases with fluoride, sulfur dioxide, and dust as the main pollutants, permeating the electrolytic workshop, deteriorating the working conditions and seriously affecting the health of production workers. The diffusion of electrolytic flue gas around the factory area will pollute the atmosphere and bring great harm to the development of agricultural and animal husbandry production and people's lives. Therefore, under the current environmental protection situation, it is very impo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/22
CPCC25C3/22
Inventor 李雪娇王铁军赵劲松葛贵君宋海琛苏立军胡红武刘竹昕王文博孙阳
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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