Five power-on bus distributing style with different current

A configuration method and isoelectric technology, applied in the installation of busbars, electrical components, cables, etc., can solve the problems of production and operation hazards, sharp increase in horizontal magnetic field, and damage to the stability of electrolytic cells, and achieve the effect of reducing hazards.

Active Publication Date: 2005-03-23
GUIYANG AL-MG DESIGN & RES INST
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  • Summary
  • Abstract
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Problems solved by technology

If the current feeding method is still used (three or four points on the large surface), the amount of current passing through each column is too large, and the resulting horizontal magnetic field increases sharply, causing the m

Method used

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  • Five power-on bus distributing style with different current

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Embodiment Construction

[0009] Embodiment of the present invention: 50% of the current in the electrolytic cell (6) flows out through 27 cathode soft busbars (1) on the A side, and flows into the five tank bottom busbars (3) and 2 after passing through the A side cathode busbars (2) The first trough side busbar (4) flows into 5 downstream trough column busbars (5); each segment A-side cathode busbar (2) and 5 trough bottom busbars (3), 2 trough side busbars (4) and 5 The busbars (5) of the downstream trough columns are respectively connected by welding. Another 50% of the current in the electrolytic cell (6) flows out through 27 cathode soft busbars on the B side, and then flows into the downstream cell column busbar (5) through the cathode busbars on the B side. The cathode bus bars on the B side of each segment and the column bus bars of the downstream slots are respectively connected by welding.

[0010] The current flowing out from the A and B sides of the electrolytic cell (6) flows into 5 colu...

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Abstract

The invention discloses a 5-point generatrix configuration method of a large-area inequipotential electricity type. It is composed of the cathode soft generatrix, cathode generatrix, bottom generatrix, side generatrix, lower column generatrix and electrobath. The lower column generatrix is 5-piece configuration. The invention not only can make the current passing every column appropriate and effectively reduce the magnetic field in the slot and the transverse magnetic field, but also match with every slot paramete of the large-scale slot. Especially compared with the two columns, the center columune has low current and is benefit to reduce the danger caused by the middle level magnetic field in the electrobath to make the electrobath more stable.

Description

Technical field: [0001] The invention relates to a power-feed configuration method for a bus bar of an aluminum electrolytic cell. technical background: [0002] At present, with the development of the prebaked electrolytic cell industry, 280-320KA class ultra-large-capacity aluminum electrolysis has become the preferred cell type for new large-scale aluminum factories in my country's aluminum industry. With the development and expansion of the capacity of the prebaked electrolytic cell, the lateral dimension of the entire cell becomes longer, and the 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) becomes more important. If the current feeding method is still used (three or four points on the large surface), the amount of current passing through each column is too large, and the resulting horizontal magnetic field increases...

Claims

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Application Information

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IPC IPC(8): C25C3/16H02G5/00
Inventor 杨朝红颜非亚刘忠琼付长宏韩笑天周铁托王其隆
Owner GUIYANG AL-MG DESIGN & RES INST
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