Novel molten aluminum electrolytic cell

Abstract

A novel molten aluminum electrolytic cell comprises an electrolytic cell body, with the bottom of the electrolytic cell having an inclination; a molten aluminum outlet pipe disposed on the undermost position of the bottom of the electrolytic cell; a gas outlet pipe disposed on the upper end of the other side of the electrolytic cell body; and a carbon dioxide purifier and a nitrogen gas purifier disposed on the gas outlet pipe, the carbon dioxide purifier being filled with calcium oxide and water, the nitrogen gas purifier being filled with an activated carbon adsorbent. Since the bottom of the electrolytic cell has an inclination, the molten aluminum obtained by electrolysis can flow into the molten aluminum outlet pipe along the inclination, without other power equipment; the carbon dioxide purifier and the nitrogen gas purifier result in high purity of oxygen gas. The invention has simple and convenient operation, increases the working continuity, and as a result, increases the production efficiency.

Description

technical field [0001] The invention relates to a novel aluminum-melting electrolytic cell, in particular to a novel aluminum-melting electrolytic cell with convenient collection of aluminum liquid and high oxygen purity, and belongs to the technical field of electrolytic aluminum equipment. Background technique [0002] The modern electrolytic aluminum industry uses cryolite-alumina molten salt electrolysis. The molten cryolite is the solvent, the alumina is the solute, the carbonaceous body is the anode, and the aluminum liquid is the cathode. After a strong direct current is applied, the electrochemical reaction is carried out on the two electrodes in the electrolytic cell at 950°C-970°C. The products are mainly liquid aluminum and oxygen. In order to obtain the aluminum liquid produced by electrolysis, it is usually necessary to set up additional power equipment to extract it from the upper part of the electrolytic cell, which is troublesome to use; the oxygen gas obtai...

AI Technical Summary

Problems solved by technology

In order to obtain the aluminum liquid produced by electrolysis, it is usually necessary to set up additional power equipment to extract it from the upper part of the electrolytic tank, which is troublesome to use; the oxygen gas obtained from electrolysis is not high in purity and mixed with harmful gases, so it needs to be collected and then purified by a purification device. The steps are cumbersome , affecting work efficiency

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