Cathode structure of aluminum cell vertical cathode steel bar current outlet

Abstract

The invention discloses a cathode structure that an aluminium electrobath vertical cathode steel stick generates electricity which belongs to the aluminium electrolytic technique field. The cathode structure includes a cathode inside lining, a cathode carbon block and a cathode steel stick. The cathode carbon block locates in the cathode inside lining inner; the cathode steel stick vertical connects with the cathode carbon block bottom, and passes through the cathode inside lining bottom that can remove horizontal current in the cathode carbon block and the aliminium liquor, weaken fluctuation of aluminium liquor in the electrobath, increase working stability of the aluminium electrobath; in addition, the cathode carbon block bottom uses heat-resistance high-strength impermeable material that can avoid leakage and breakage of the electrobath caused by the aluminium liquor corrading the cathode steel stick.

Description

technical field [0001] The invention relates to the technical field of aluminum electrolysis, in particular to a cathode structure for discharging electricity from a vertical cathode steel rod of an aluminum electrolysis cell. Background technique [0002] With the continuous development and improvement of aluminum electrolysis technology and the in-depth study of aluminum electrolysis theory, there has been a trend of increasing the size of aluminum electrolysis cells. According to the production practice at home and abroad: the larger the cell type of the electrolytic cell, the more difficult it is to control its stability. Furthermore, the stability of the electrolytic cell is closely related to the fluctuation of the aluminum liquid interface in the electrolytic cell. In addition to the influence of the magnetic field, the fluctuation of the aluminum liquid in the electrolytic cell is mainly determined by the magnitude of the horizontal current at the cathode of the elec...

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Problems solved by technology

An electrolytic cell with poor working stability cannot achieve normal production

[0003] However, in the traditional cathode structure, the cathode steel rods are horizontally arranged at the bottom of the cathode carbon block and pass through the side of the electrolytic cell. This cathode structure causes the cathode current to enter the cathode steel rods vertically and also generates A certain amount, and as the capacity of the electrolyzer increases, the horizontal current also increases, which seriously affects the stability of the production of the electrolyzer

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