Environment-friendly treatment device for fluoride and toxic dust in electrolytic aluminum waste gas

An environmental protection treatment, fluoride technology, applied in the direction of combined devices, chemical instruments and methods, dispersed particle filtration, etc., can solve problems affecting human health, air pollution, etc., and achieve the effect of improving environmental protection and avoiding pollution

Inactive Publication Date: 2021-04-06
SHANDONG NANSHAN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of electrolytic aluminum production, a large amount of waste gas will be generated, which contains fluoride and toxic dust. If it is directly discharged into the air, it will cause air pollution, affect people's health, and have a greater impact on life.

Method used

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  • Environment-friendly treatment device for fluoride and toxic dust in electrolytic aluminum waste gas

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Experimental program
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Embodiment

[0024] When using this device, first, various reagents and water are added into the first cavity 4 through the feed port 11 to form a reagent solution, and then through the first air inlet pipe 10, the waste gas produced by electrolytic aluminum is passed into the first cavity Inside the body 4, then make the motor 7 work, the work of the motor 7 makes the stirring shaft 8 rotate, and the stirring shaft 8 rotates to drive the stirring plate 9 to rotate, and the stirring plate 9 makes the fluoride in the exhaust gas react with the toxic dust and the reagent solution to form a precipitate. Residing in the first chamber 4, the reacted gas enters the second chamber 5 through the second air inlet pipe 19, and then the heating plate 12 works to dry the gas entering the second chamber 5, and then the first The first electrode 13 and the second motor 14 work to form an electrostatic field to adsorb and separate the dust in the gas, and then the gas after electrostatic separation enters...

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Abstract

The invention provides an environment-friendly treatment device for fluoride and toxic dust in electrolytic aluminum waste gas, and mainly relates to the technical field of treatment of fluoride and toxic dust in electrolytic aluminum waste gas. The environment-friendly treatment device for fluoride and toxic dust in electrolytic aluminum waste gas comprises a box body, a first vertical plate and a second vertical plate are installed in the box body, a motor is installed on one side of the top face of the box body, a stirring shaft is installed at the bottom of a rotating shaft of the motor, stirring plates are installed on the two sides of the bottom of the stirring shaft, a first gas inlet pipe is installed on one side of the box body, a feeding port is formed in one side of the top of the box body, a heating plate is installed at the top of the second cavity, and a first electrode and a second electrode are installed on the two sides of the second cavity correspondingly. The treatment device has the beneficial effects that fluoride and toxic dust in electrolytic aluminum waste gas can be treated, the fluoride and the toxic dust in the electrolytic aluminum waste gas are prevented from being directly discharged into the atmosphere, pollution to the atmosphere is avoided, and environmental protection is improved.

Description

technical field [0001] The invention mainly relates to the technical field of treatment of fluoride and toxic dust in electrolytic aluminum waste gas, in particular to an environmental protection treatment device for fluoride and toxic dust in electrolytic aluminum waste gas. Background technique [0002] Electrolytic aluminum is an aluminum production process obtained by electrolysis. The modern electrolytic aluminum industry adopts the cryolite-alumina molten salt electrolysis method. The molten cryolite is the solvent, alumina is the solute, and the carbon body is the anode. The liquid is used as the cathode, and after a strong direct current is passed through, the electrochemical reaction is carried out on the two electrodes in the electrolytic cell at 950°C-970°C, that is, electrolysis. [0003] In the process of electrolytic aluminum production, a large amount of waste gas will be produced, which contains fluoride and toxic dust. If it is directly discharged into the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D53/78B01D53/68B01D53/26B01D53/04B01D46/12
CPCB01D46/12B01D50/00B01D53/04B01D53/26B01D53/68B01D53/78
Inventor 程志远潘军丞岳亮陈璐
Owner SHANDONG NANSHAN ALUMINUM
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