Bottom trough refractory material composite structure of aluminium cell cathode carbon block and manufacturing method thereof

Abstract

The invention relates to the technical field of an aluminium cell, and particularly relates to a bottom trough refractory material composite structure of an aluminium cell cathode carbon block and a manufacturing method thereof. The bottom trough refractory material composite structure comprises a trough refractory material structure body, wherein the structure body tightly contacts the bottom surface of the cathode carbon block and the surface of a cathode steel rod body protruding on the bottom surface of the cathode carbon block; a groove coupled to the cathode steel rod body part protruding on the bottom surface of the cathode carbon block is formed on the upper surface of the structure body; an anti-seepage layer is arranged at the lower part of the structure body. The manufacturing method comprises the following steps: building the anti-seepage layer and the trough structure refractory material and installing the cathode carbon block, or firstly combining the overall refractory material structure with the cathode carbon block, and then putting the overall combined body on the anti-seepage layer at the bottom of the trough refractory material or other types of thermal insulation materials. By adopting the technical scheme disclosed by the invention, under the condition of not increasing the height of the cathode carbon block, the conductive area of the cathode steel rod can be increased, the resistance of the cathode steel rod is reduced, and the horizontal current in cathode molten aluminum of the aluminium cell is also reduced.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolytic cells, and in particular relates to a combination structure of refractory materials at the bottom of a cathode carbon block of an aluminum electrolytic cell and a manufacturing method. Background technique [0002] Energy saving is the core technical content of industrial aluminum electrolytic production. The energy saving of industrial aluminum electrolytic cell production can be achieved by increasing the current efficiency, or by increasing and reducing the cell voltage without the current efficiency being greatly affected. All of these methods and techniques can also be achieved through the stability of the electrolytic cell cathode aluminum liquid level. There are many ways to improve the stability of the cathode aluminum liquid level of the electrolytic cell, and one of the most important measures is to reduce the horizontal current in the cathode aluminum liquid of the electro...

AI Technical Summary

Problems solved by technology

Yet when using this patented technology, when the cathode carbon block that this cathode steel rod bottom is stretched out the cathode carbon block bottom surface is placed on the anti-seepage material or the refractory brick on the tank liner surface that has built flat, just ran into difficulty

Even using impermeable refractory materials with powdery properties cannot guarantee its complete installation and proper installation

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