Online measurement method and device for anode current of aluminum electrolytic cell

An anode current and aluminum electrolytic cell technology, applied in the field of aluminum electrolysis, can solve the problem that the anode current measurement method of the aluminum electrolytic cell cannot obtain stable and reliable anode current signals in real time for a long time, and achieve the effects of simple structure, convenient operation and low cost.

Active Publication Date: 2014-10-29
湖南阿尔惠特科技股份有限公司
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose a new method and device for measuring the anode current of an aluminum electrolytic cell in view of the shortcoming that the existing aluminum electrolytic cell anode current measurement method cannot obtain a stable and reliable anode current signal in real time for a long time

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  • Online measurement method and device for anode current of aluminum electrolytic cell
  • Online measurement method and device for anode current of aluminum electrolytic cell
  • Online measurement method and device for anode current of aluminum electrolytic cell

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] An online measurement method for the anode current of an aluminum electrolytic cell, by setting a plurality of main measuring points on the anode beam busbar or column busbar, the voltage value on the main measuring point is obtained, and the anode beam busbar and the For the resistance network of the column busbar, the current value of each anode guide rod is calculated by numerical simulation method.

[0035] The measuring point is set on the outer surface, inner surface, upper edge or lower edge of the anode beam busbar between every two anode guide rods.

[0036] The measuring points are set on both sides of the anode guide rod, in the middle of the anode beam busbar or in the middle of the column busbar.

[0037] It also includes an auxiliary measurement point, the auxiliary measurement point is set at the upper edge of the bridge bus;

[...

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Abstract

The invention discloses an online measurement method and device for anode current of an aluminum electrolytic cell. The online measurement method comprises the following steps: setting a plurality of main measurement points on an anode beam bus bar or a riser bus bar so as to obtain voltage values of the main measurement points, establishing a resistance network of the beam bus bar according to Kirchhoff voltage and current laws, and calculating the flowing-in current of each anode by utilizing the values of obtained voltage or voltage difference values. The real-time online dynamic acquisition on the flowing-in current of each anode of the aluminum electrolytic cell can be realized by using the measurement method and the device. The long-time stable and reliable online acquisition on the anode current can be realized when the online measurement method and device are applied to the aluminum electrolytic cell.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolysis, and specifically relates to an on-line measurement method and device for obtaining the amount of current flowing through each anode in an aluminum electrolytic cell in real time. Background technique [0002] The traditional Hall-Héroult aluminum electrolysis process has always been the only method for industrial aluminum smelting, and its core equipment is an aluminum electrolytic cell. In addition to the electrolyte and molten aluminum between the electrodes, an aluminum electrolytic cell also includes an anode section and a cathode section. By sequentially connecting the cathode busbar of each tank and the column busbar of the next tank, a complete external circuit of the electrolysis series except power supply is formed. Inside the aluminum electrolytic cell, the anode part includes a certain number of anode blocks, and the aluminum guide rod of each anode is electrically conne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/20C25C3/12G01R19/25
Inventor 邹忠杨帅李勇王柳青郑文波彭胜光
Owner 湖南阿尔惠特科技股份有限公司
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