Five power-on bus distributing style with different current

A technology for configuring devices and equalizing electricity, applied in the installation of busbars, cables, electrical components, etc., can solve problems such as production operation hazards, fluctuations, and sharp increases in horizontal magnetic fields, and achieve the effect of reducing hazards

Active Publication Date: 2008-12-03
GUIYANG AL-MG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 melt in the tank to be under the action of the magnetic field force. The uplift and fluctuation of the lower part lead to the destruction of the stability of the electrolytic cell and bring great harm to the production operation.

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 side A, flows into five busbars 3 at the bottom of the tank and two busbars 4 at the side of the tank after passing through the cathode busbars 2 on side A, and then 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 downstream trough column busbars 5 are respectively connected by welding. The other 50% of the current in the electrolytic cell 6 flows out through the 27 cathode soft bus bars on the B side, and then flows into the downstream cell column bus bar 5 through the B side cathode bus bars. 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 side of the electrolytic cell 6A and B flows into the 5 column busbars 5 on...

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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 an aluminum electrolytic cell busbar power-feed configuration device. technical background: [0002] At present, with the development of the prebaked electrolytic cell industry, 280----320KA-level super-large-capacity aluminum electrolysis has become the preferred cell type for new human-shaped aluminum factories in my country's aluminum industry. With the development and expansion of the capacity of the prebaked electrolytic cell, the horizontal dimension of the entire cell becomes longer, and the important factor affecting the production stability of the electrolytic cell ----- the distribution characteristics of the magnetic field in the cell (requiring a small magnetic field value and a small gradient) becomes more and more complicated. 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 horizo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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