Intelligent crust-breaking and supplying system and method for aluminum electrolysis cell

Abstract

The invention provides an intelligent crust-breaking and supplying system and method for an aluminum electrolysis cell, and relates to the technical field of aluminum electrolysis cell production andcontrol systems. The intelligent crust-breaking and supplying system is characterized in that a data acquisition sub system acquires pressure, current, voltage and temperature data, and transmits thedata to an intelligent controller; the intelligent controller outputs a loading rate and hammer head operation track to an output drive module; the intelligent controller controls opening degree of adigital type proportional regulating valve; the output drive module drives a crust-breaking air cylinder drive solenoid valve and a loading drive solenoid valve to complete intelligent crust-breakingand intelligent loading; and while manual operation is needed, operation is performed by a man-machine interactive module. The method can accurately judge the state of a loading hole, and optimizes the operation track and operation speed of the crust-breaking hammer head through parameters given out by a control system, so that an aperture ratio of the loading hole is guaranteed under least energy.

Description

technical field [0001] The invention relates to the technical field of aluminum electrolytic cell production control systems, in particular to an aluminum electrolytic cell intelligent shelling and intelligent feeding system and method. Background technique [0002] At present, most aluminum electrolytic cells are prebaked cells, which are produced by intermediate point feeding. There is a three-phase flow of gas, liquid and solid in the electrolytic cell, and the environment outside the electrolytic cell is high temperature, high dust, and strong magnetic field. The electrolytic cell control system feeds materials into the electrolytic cell through the feeding port according to a certain interval. The state of the feed port directly affects the feed state of the electrolytic cell. At present, the electrolytic aluminum industry drives the pneumatic system through the tank control machine, and uses the shelling hammer to impact the feed port at a certain interval to ensure t...

AI Technical Summary

Problems solved by technology

However, the above-mentioned traditional intelligent shelling cylinder or intelligent shelling system only detects the stroke of the cylinder itself, or only detects the thickness of the shell surface, but cannot accurately identify the state of the feeding port

It is not possible to adjust the shelling rhythm and control the trajectory of the hammer head according to the process conditions such as the feeding cycle of the electrolyzer, the electrolyte solubility, the two levels, and the molecular ratio.

Therefore, the traditional shelling system still has problems such as unstable system operation, missed judgments at the material opening, or frequent misjudgments.

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