On-line monitoring device for aluminum electrolytic cell

Abstract

The invention discloses an on-line monitoring device for an aluminum electrolytic cell. The on-line monitoring device comprises a first thermocouple arranged in a heat radiating hole of the side wallof a cell shell of the aluminum electrolytic cell and a measuring frame arranged on a cathode steel bar of the aluminum electrolytic cell. The first thermocouple is connected with a control module through a first integrated circuit. A second thermocouple, a third thermocouple, a first measuring foot and a second measuring foot are arranged on the measuring frame. The second thermocouple is in contact with a steel plate of the bottom of the cell shell. The third thermocouple, the first measuring foot and the second measuring foot are in contact with the cathode steel bar. The second thermocouple, the third thermocouple, the first measuring foot and the second measuring foot are connected with the control module through a second integrated circuit. According to the on-line monitoring devicefor the aluminum electrolytic cell, the second thermocouple measures the temperature of the steel plate of the bottom of the cell shell in real time, and the third thermocouple measures the temperature of the cathode steel bar in real time; the first measuring foot and the second measuring foot measure the pressure drop of the cathode steel bar in real time; and timely alarm is achieved for abnormal points through the control module, so that hidden dangers are eliminated to the greatest extent.

Description

technical field [0001] The invention belongs to the technical field of on-line detection of aluminum electrolytic cells, and in particular relates to an on-line monitoring device of aluminum electrolytic cells. Background technique [0002] When the temperature of the shell of the aluminum electrolytic cell (including the steel plate with heat dissipation holes and the steel plate at the bottom of the cell) and the temperature of the cathode steel rod are abnormal, it indicates that the aluminum electrolysis equipment is damaged or other problems. Leaking out of the tank, because it is a high-temperature liquid, there are risks such as explosion), and it will cause serious accidents such as stopping the tank or stopping production of the entire series. The distribution of the cathode current is one of the important indicators to judge whether the production of the electrolytic cell is stable, but the regulatory measurement of these indicators is still in the stage of manual ...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above problems, provide an aluminum electrolytic cell online monitoring device, realize online automatic detection and processing, reduce labor intensity, carry out continuous and effective monitoring of key parameters, and avoid problems such as untimely hidden dangers, so as to maximize the Eliminate potential safety hazards and achieve the goal of safe production

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