Encircling type busbar arrangement method for vertical row cell

Abstract

The invention discloses a surround-type bus bar arrangement for longitudinal slots. It adopts an unequal electric four-point power supply mode. A part of the current on the rear large surface of the electrolytic cell flows out through four cathode soft bus bars, and then flows into the front large The front cathode busbar enters the downstream slot column busbar, and the rest of the current flows out through 9 cathode soft busbars, respectively entering the rear large-surface column busbar of the downstream slot; part of the current in the front large surface flows out through 4 cathode soft busbars, and then flows into the rear large-surface cathode busbar Entering the column busbar of the downstream tank, the rest of the current flows out through 9 cathode soft busbars, and enters the front large-face column busbar of the downstream tank respectively through the cathode busbars. The invention has the characteristics of effectively reducing the magnetic field in the groove and the horizontal horizontal magnetic field, so that the magnetic field in the whole groove presents a uniform distribution with multiple peaks and lower peaks and valleys, and effectively solves the problem of the magnetic field of a large prebaked groove.

Description

Technical field: [0001] The invention relates to a method for configuring the bus current of an aluminum electrolytic cell. technical background: [0002] At present, my country's aluminum industry currently produces a large number of longitudinal slots of 65~120KA level. Due to the small current capacity, two-point power supply is often used in busbar configuration. With the development and expansion of large-capacity tandem cells, (130KA~150KA current capacity cell type) an important factor affecting the production stability of the electrolytic cell-the magnetic field distribution characteristics in the cell (requiring a small magnetic field value and a small gradient) has become more and more important. important. If the original power supply method (2-point power supply at the terminal) is adopted, because it cannot meet the design requirements of the magnetic field of the electrolytic tank, the local magnetic field of the electrolytic tank will be too large, the stabil...

AI Technical Summary

Problems solved by technology

If the original power supply method (2-point power supply at the terminal) is used, because it cannot meet the design requirements of the electrolytic tank magnetic field, the local magnetic field of the electrolytic tank will be too large, the stability of the tank will be damaged, and it will bring great harm to the production operation.

Images