Novel aluminum cell structure

Abstract

The invention relates to a novel aluminum electrobath. The aluminum electrobath is characterized in that the aluminum electrobath adopts an aluminium liquid overflow chute which can adjust the liquid level and the flow rate of aluminium liquid in the aluminum electrobath and the temperature of an aluminium holding pool in order that the aluminium liquid of the upper surface of a cathode block smoothly flows into the aluminium holding pool through an overflow hole along the upper surface of the cathode block with certain gradient of certain slope; and in the electrolysis process, the thickness of a resistance layer of the aluminium liquid in the aluminum electrobath is reduced through a mode of adjusting the height of the aluminium liquid in the aluminum electrobath, thereby achieving the aims of reducing the process pressure drop of electrolytic aluminium and the power consumption of the electrolytic aluminium. Simultaneously, the aluminium holding pool on the aluminium liquid overflow chute can be used as an alloy addition molten pool. A structure of the design proposal of the novel aluminum electrobath is adopted to implement reconstruction on the prior universal aluminum electrobath and can substantially reduce power consumption per ton aluminium.

Description

Background technique: [0001] The aluminum electrolytic cell is the equipment used for the production of electrolytic aluminum. Its main function is to make aluminum oxide produce thermoelectrochemical reaction under the action of low voltage and high current to generate electrolytic aluminum liquid. [0002] The current aluminum electrolytic cell is composed of two parts, the cathode structure and the anode structure. [0003] The cathode structure includes the molten pool part of the electrolytic cell, which is made of various cell-building materials such as cathode carbon blocks, side carbon blocks, anti-leakage material layers, and insulation bricks inside the electrolytic cell steel shell. Its function is to provide a cathode bath that conducts a strong current to produce electrolytic aluminum from alumina. Among them, the upper surface of the cathode molten pool made of cathode carbon blocks, cathode steel rods and tamping paste is a horizontal plane, which is the main w...

AI Technical Summary

Problems solved by technology

[0009] At present, the electrolytic aluminum industry at home and abroad refers to the design ideas of some other metallurgical furnaces, and proposes to change the bottom surface of the electrolytic cell bath (the upper surface of the cathode carbon block) from a horizontal design to an inclined design with a certain slope, intending to reduce the electrolysis. The aluminum liquid flows and accumulates in a certain direction or a certain point, and a design scheme of an inclined overflow tank is proposed, but due to the influence of the cathode carbon block material, the structural design of the electrolytic cell, and the masonry process scheme, it has remained at the theoretical level. Discussion phase, never implemented

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