Aluminum cell bus-bar collocation structure including external compensation

Abstract

The invention discloses an aluminum reduction cell bus configuration structure with external compensation and belongs to the technical field of metal aluminum electrolysis. The invention adopts an external bus compensation mode that external compensation buses are arranged along a direction of a potline current on two ends of the prior aluminum reduction cell respectively. Directions of currents in external compensation buses are the same as that of the potline current. A plurality of bottom cathode buses are arranged at the bottom of the reduction cell along the direction of the potline current. One end of each bottom cathode bus is connected with a cathode bus at an upstream end, while the other end is connected with a vertical post of another reduction cell at a downstream side of the reduction cell. External compensation buses and the bottom compensation buses cooperated to correct and compensate disturbance of magnetic field of the aluminum reduction cell. The aluminum reduction cell bus configuration structure solves the problem of large consumption of cathode buses and complexity of each reduction cell and saves buses.

Description

technical field [0001] The invention relates to a current supply device of an aluminum electrolytic cell, in particular to a configuration structure of a bus bar of an aluminum electrolytic cell including external compensation. Background technique [0002] With the improvement of the design and operation technology of aluminum electrolytic cells, the newly designed and constructed aluminum electrolytic cells at home and abroad are increasingly developing in the direction of large-scale, and their series currents inevitably reach 500KA to 700KA, or even above. However, with the increase of the series current, the influence of the magnetic field distribution generated by the current-carrying busbar and the melt current on the stability of the slot production and operation becomes more and more prominent. [0003] Therefore, in the design of large-scale and super-large electrolytic cell busbars, its influence on the stability of the cell must first be considered. Through the ...

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Problems solved by technology

In this way, the amount of cathode busbars and the slot spacing are large, which is very uneconomical, and the compensation effect of the magnetic field is not ideal.

At the same time, when the series current reaches 500KA to 700KA, if the magnetic field configuration is a little careless, it will be difficult to meet the stable production requirements of the aluminum electrolytic cell

If it is still only the method of configuring the cathode bus bar of the tank, it is neither economical nor accurate

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