On-line testing method for aluminum cell anodic current distribution and monitoring device

Abstract

The invention discloses an on-line detection method for current distribution in the anode of an aluminum reduction cell. By clamping voltage data collecting devices on all the anode guide rods in the reduction cell one by one and using the radio transmission technology, the method realizes simultaneous collecting of voltage data of all the anode guide rods in the reduction cell, thus providing timely and accurate data for analyzing the distribution and changing trend of current in the anode. The on-line monitoring method for current distribution in the anode of the aluminum reduction cell of the invention can master the distribution of the current in the anode of the reduction cell in time, provide timely and accurate data for an operator to adjust the height of the anode in time and ensure stable and isostatic distribution of the current in the anode of the reduction cell according to technology condition, avoid anode shedding caused by current convergence in the anode, specify the furnace cavity, increase current efficiency of the reduction cell, reduce anode consumption and power consumption and achieve the goal of saving electric power resource.

Description

technical field [0001] The invention relates to an on-line detection method for the anode current distribution of an aluminum electrolytic cell and a monitoring device for implementing the method. Background technique [0002] With the progress of aluminum electrolysis process technology and the development of aluminum electrolysis industry, large-scale prebaking has been basically realized, and dozens of anodes are often arranged on an aluminum electrolysis cell. Since aluminum electrolysis production is a lava electrolysis process, the uniformity of the anode current distribution of the aluminum electrolytic cell directly affects the type of the electrolytic cell chamber, affects the stability of the anode work, affects the horizontal current, and affects the stability of the process and technical conditions during the production and operation of the electrolytic cell. , affect the current efficiency of the electrolytic cell, affect the output of electrolytic aluminum, aff...

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Problems solved by technology

[0004] Since there are dozens of anodes arranged on an electrolytic cell, for example, there are 28 anodes arranged on an electrolytic cell, it usually takes a long time to measure all the anodes in an electrolytic cell. Therefore, this data acquisition The method is not only labor-intensive, but the key is that there is a time interval in the collection of each anode data, and this time interval directly affects the accuracy of the analysis of the anode current distribution and change trend in the later stage, reducing the reliability of the analysis data, and by This affects the precise control of the electrolytic aluminum production process

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