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Method for online measuring current efficiency of electrolytic cell on line and realization device of method

A current efficiency and electrolytic cell technology, applied in the field of online measurement of electrolytic cell current efficiency, to achieve stable production, no need for capital investment, and optimized technical conditions and parameters

Active Publication Date: 2014-03-12
GUIZHOU BRANCH CHINA ALUMINUM IND
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Problems solved by technology

At present, there is no method that can simply measure the current efficiency of aluminum electrolytic cells online

Method used

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  • Method for online measuring current efficiency of electrolytic cell on line and realization device of method

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Embodiment Construction

[0017] The implementation of the present invention will be described in detail below in conjunction with the examples.

[0018] The present invention is applicable to various anode height measuring devices and supporting crown crane accessories, and is applicable to various aluminum electrolytic cell types. The design takes 15 days as a time period, and the anode level in the initial state of the measurement period is used as the standard basis. Through the measurement of the change of the anode level after the aluminum is tapped every day in the period as a comparison base, the standard base is set to a fixed value of 1, and the daily comparison base is compared with the standard base for calculation, based on the average calculation results of 15 days Draw the change curve of the anode level, combined with the daily aluminum output in the cycle, calculate the current efficiency through the core algorithm of the present invention, the specific method is as follows:

[0019] T...

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Abstract

The invention discloses a method and a device for online measuring the current efficiency of an electrolytic cell and a realization device of the method. The method comprises the following steps: as 15 days is taken as a time period, measuring an anode horizontal plane on the first day in each period to serve as a standard basis, measuring the change condition of the anode horizontal plane within an hour to serve as a contrast basis after the process of discharging aluminum on each day in the period, setting the standard basis as a constant value 1, performing ratio calculation on the contrast basis and the standard basis of each day, drawing an anode horizontal plane changing curve according to the average ratio result within 15 days, combining the aluminum discharging amount of each day in the period, and calculating the current efficiency. According to the method, the accuracy rate of issuing the aluminum discharging task load can be improved, so that real data can be taken as reference, and the technical conditions of an aluminum electrolysis cell process are effectively optimized and consolidated.

Description

technical field [0001] The invention relates to a method for measuring the current efficiency of an electrolyzer on-line and a device for realizing it. Background technique [0002] The assignment of the aluminum output task of the aluminum electrolytic cell directly affects important technical parameters and conditions such as material balance, heat balance, and aluminum liquid level in the production of the aluminum electrolytic cell. In principle, under normal production conditions, the aluminum output task should follow the principle of "how much to produce, how much to produce". However, in the existing management mode at present, it can only be analyzed according to the process parameters of the aluminum electrolytic cell, such as bath temperature, molecular ratio, aluminum liquid level, and electrolyte level, and judgments are made based on experience, and this is used as the basis for the aluminum output task. the only way. At present, there is no method that can s...

Claims

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Application Information

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IPC IPC(8): C25C3/20
Inventor 黄卫平张生凯孙宁宁鲁文欣魏玉梅张征南寇东胜李积海祝豫海
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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