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A method and system for diagnosing the working state of an aluminum electrolytic cell feeder

An aluminum electrolytic cell and working state technology, which is applied in the field of aluminum electrolysis, can solve the problems such as the inability to monitor the working state of the feeder, and achieve the effects of reliable diagnosis results, reduced workload, and reduced fluctuations.

Active Publication Date: 2016-09-07
CENT SOUTH UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

In fact, due to the lack of suitable sensors and necessary methods, the current control system of the aluminum electrolytic cell is still unable to effectively monitor the working status of the feeder, so the abnormal operation of the feeder often requires manual inspections to find out and solve it

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  • A method and system for diagnosing the working state of an aluminum electrolytic cell feeder

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] A method for diagnosing the working state of the blanking device of an aluminum electrolytic cell, within the two first set time intervals before and after the execution of the shelling action issued by the slot control machine and the second set time after the execution of the unloading action In the interval, the current value of each anode around the feeder in the corresponding set time interval is collected from the anode current distribution system and the average current value and average current fluctuation in the corresponding time interval are calculated. The average current value and average current The fluctuation value is compared with the average current value and the average current fluctuation value during normal operation, and combined with the aluminum oxide concentration in the tank obtained by the aluminum electrolysis tank cont...

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Abstract

The invention discloses a method and system for diagnosing the working state of the feeder of an aluminum electrolytic cell. The anode current distribution information obtained by the anode current distribution system and its changes can be used to check whether the shelling and feeding actions of the feeder are performed or not. Analysis and judgment, the system includes an instruction analysis module, a current acquisition module, an alumina concentration acquisition module, an analysis module and an alarm module; the instruction analysis module, the current acquisition module, the alumina concentration acquisition module and the alarm module are all connected to the analysis module. The application of the invention can quickly detect the abnormal operation of the feeder, and improve the accuracy of alumina concentration control in the tank.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolysis, and in particular relates to a method and a system for diagnosing the working state of a feeder of an aluminum electrolytic cell. Background technique [0002] Modern large-scale aluminum electrolytic cells all adopt automatic control methods to assist production management. The most core content in this field is the control of material concentration in the cell. The cutting system of the modern electrolytic cell, which is composed of the cell resistance sampling by the cell control machine, the analysis of alumina concentration and the decision of feeding, and the shelling and feeding action of the point feeder, not only makes a small amount of alumina input each time It can be dissolved quickly, and it also avoids the violent fluctuation of the tank condition caused by the excessive amount of alumina input at one time. More importantly, the aluminum electrolytic tank with point fe...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/14C25C3/20
Inventor 张红亮杨帅邹忠李劼
Owner CENT SOUTH UNIV