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Electrolytic bath for electrolytic aluminum and electrolytic process using electrolytic bath

An electrolytic cell and electrolytic aluminum technology, which is applied in the field of electrolytic aluminum, can solve the problems of waste gas environmental pollution, inability to efficiently absorb harmful substances in waste gas, and fine shunting of gas that cannot be discharged, so as to solve pollution, promote reaction, and absorb efficiently Effect

Pending Publication Date: 2022-04-29
肖凡
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology, the existing electrolytic cell for electrolytic aluminum cannot finely divide the discharged gas during the process of electrolytic aluminum, so that it cannot efficiently absorb harmful substances in the exhaust gas, causing the exhaust gas to cause environmental damage. The problem of pollution; the present invention proposes an electrolytic cell for electrolytic aluminum and an electrolytic process using the electrolytic cell

Method used

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  • Electrolytic bath for electrolytic aluminum and electrolytic process using electrolytic bath
  • Electrolytic bath for electrolytic aluminum and electrolytic process using electrolytic bath
  • Electrolytic bath for electrolytic aluminum and electrolytic process using electrolytic bath

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specific Embodiment approach

[0045] As a specific embodiment of the present invention, the lower end surface of the No. 1 nozzle 411 is uniformly provided with No. 3 nozzles 415 .

[0046] During work, the No. 1 nozzle 411 is on the upper end of the No. 2 nozzle 441, and the lower end surface of the No. 1 nozzle 411 is evenly provided with the No. 3 nozzle 415. Like this, the exhaust gas ejected from the No. 1 nozzle 413 on the No. 2 nozzle 441 The exhaust gas ejected from the No. 3 nozzle 415 will drive the strong alkaline solution to produce convection, making the mixing of the exhaust gas and the strong alkaline solution more complete, so that the reaction of CO2 gas, HF gas and strong alkaline solution is further improved. promote.

[0047] As a specific embodiment of the present invention, a stirring device 42 is uniformly arranged in the waste gas absorption box 4, and the stirring device 42 includes a stirring shaft 421, a No. 1 blade 422 and a No. 2 blade 423, and the No. 1 blade 422 and the No. ...

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Abstract

The invention belongs to the technical field of electrolytic aluminum, and particularly relates to an electrolytic bath for electrolytic aluminum and an electrolysis process using the electrolytic bath, the electrolytic bath comprises an electrolysis box, an electrolysis box cover, a waste gas exhaust pipe, a waste gas absorption box, a gas outlet pipe and a flow dividing box, waste gas enters the flow dividing box through the waste gas exhaust pipe, and the waste gas is divided into different flow dividing channels from the flow dividing box; then the waste gas enters the waste gas absorption box through the flow dividing holes uniformly formed in the flow dividing channel, CO2 gas and HF gas in the waste gas react with a strong alkaline solution in the waste gas absorption box to generate water-soluble salt, and the technical scheme can refine and divide the discharged gas, so that harmful substances in the waste gas are efficiently absorbed; and the problem of environmental pollution is solved.

Description

technical field [0001] The invention belongs to the technical field of electrolytic aluminum, and specifically relates to an electrolytic cell for electrolytic aluminum and an electrolytic process using the electrolytic cell. Background technique [0002] Electrolytic aluminum is aluminum obtained by electrolysis. The modern electrolytic aluminum industry uses cryolite-alumina molten salt electrolysis. Molten cryolite is the solvent, alumina is the solute, the carbon body is the anode, and the aluminum liquid is the cathode. After a strong direct current is applied, electrochemical reactions are carried out on the two electrodes in the electrolytic cell at 950°C-970°C. Aluminum electrolysis process: The modern aluminum industry adopts cryolite-alumina molten salt electrolysis method, and the chemical reaction is mainly carried out through the following equation: 2Al 2 o 3 +3C==4Al+3CO 2 ↑. Anode: 2O 2- +C-4e - =CO 2 ↑Cathode Al 3+ +3e - =Al. The anode product is m...

Claims

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Application Information

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IPC IPC(8): C25C3/08C25C3/22
CPCC25C3/08C25C3/22
Inventor 肖凡苏浩文
Owner 肖凡
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