Aluminum reduction cell with plate-shaped diaphragm structure

Abstract

The invention discloses an aluminum reduction cell with a plate-shaped diaphragm structure, which comprises an anode (1) and a cathode (2), wherein a guiding groove (3) is arranged inside the cathode (2), a plate-shaped diaphragm (4) is arranged on the guiding groove (3), and the plate-shaped diaphragm (4) is provided with a millipore (5). The millipore (5) is in a cylindrical structure or a conical structure. The width of the plate-shaped diaphragm (4) is between the length of the guiding groove (3) and the length of the anode (1). By adopting the unique plate-shaped diaphragm structure with the millipore, the physical isolation between an aluminum liquid layer and an electrolyte layer can be realized, the fluctuation of an aluminum liquid interface can be effectively reduced, the stability of the reduction cell can be improved, the secondary reaction of aluminum liquid can be reduced, the current efficiency of the aluminum reduction cell can be improved, and the energy conservation and consumption reduction can be realized.

Description

technical field [0001] The invention relates to an aluminum electrolytic cell with a plate-like diaphragm structure, belonging to the technical field of aluminum electrolytic cells. Background technique [0002] In the aluminum electrolytic cell currently used for aluminum electrolytic production, the aluminum liquid precipitated during electrolysis is accumulated on the upper part of the carbon block cathode to form an aluminum liquid layer and used as a part of the cathode. Because the aluminum liquid at a certain height in the electrolytic cell is affected by the electromagnetic field and fluctuates, resulting in the occurrence of secondary reactions of the aluminum liquid, which can greatly reduce the current efficiency of the aluminum electrolytic cell. With the continuous development and improvement of aluminum electrolysis technology and the requirements of industrial policies, energy saving and consumption reduction, the cell type of aluminum electrolysis cell is gra...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an aluminum electrolytic cell with a plate-shaped diaphragm structure, which can effectively realize the plate-shaped diaphragm structure in which the aluminum liquid layer is isolated from the electrolyte layer, and increase the stability of the aluminum liquid interface , to reduce the secondary reaction of the aluminum liquid, to overcome the shortcomings of the existing technology that the aluminum liquid interface fluctuates too much, increases the occurrence of secondary reactions, reduces the current efficiency of the aluminum electrolytic cell, and increases energy consumption.

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