Aluminum electrolysis cell anode distributed current precise measuring instrument with self-calibration function

An aluminum electrolytic cell and a technology for distributing current, applied in the field of aluminum electrolytic anode current distribution detection, can solve problems such as the inability to automatically correct measurement signal measurement accuracy, and achieve the effects of simple structure, stable signal communication, and stability maintenance.

Inactive Publication Date: 2016-06-01
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an accurate measuring instrument for the anode distribution current of an aluminum electrolytic cell with self-calibration function, so as to solve the problems that the existing measurement method cannot automatically correct the measurement signal and the measurement accuracy is poor

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  • Aluminum electrolysis cell anode distributed current precise measuring instrument with self-calibration function
  • Aluminum electrolysis cell anode distributed current precise measuring instrument with self-calibration function
  • Aluminum electrolysis cell anode distributed current precise measuring instrument with self-calibration function

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Embodiment Construction

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0035] Aiming at the problems that the existing measuring method cannot automatically correct the measuring signal and the measuring precision is poor, the present invention provides an accurate measuring instrument for the anode distribution current of an aluminum electrolytic cell with a self-calibrating function.

[0036] Such as figure 1 As shown, the measuring instrument includes a self-calibration module 1, an A / D conversion module 2, a microprocessor 3, a temperature acquisition module 4, an RS-485 communication module 5, a data storage module 6, a power module 7 and an isolation protection module 8, Wherein, the self-calibration module 1 is electrically connected with the A / D conversion module 2, the A / D conversion module 2 is electrically connec...

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Abstract

The invention provides an aluminum electrolysis cell anode distributed current precise measuring instrument with the self-calibration function and belongs to the technical field of aluminum electrolysis anode current distribution detection. The measuring instrument comprises a microprocessor, a self-calibration module, an A/D conversion module, a temperature acquisition module, an RS-485 communication module, a data storage module, a power module and an isolation protection module. Processed voltage and temperature signals are further analyzed and calculated by the microprocessor and converted into an anode current signal which is transmitted to an upper computer in an industrial-grade RS-485 bus manner. The measuring instrument has the self-calibration function and is provided with the DC/DC isolation power module. All digital signals are isolated from the microprocessor through a digital isolation chip. Anode distributed current can be precisely monitored in real time. Measuring precision is high, reliability is high, data management is convenient, current of anode guide rods of an aluminum electrolysis cell can be finally acquired, and the changing situation of distribution of anode current of the electrolysis cell can be finally acquired.

Description

technical field [0001] The invention relates to the technical field of aluminum electrolytic anode current distribution detection, in particular to an accurate measuring instrument for anode current distribution of an aluminum electrolytic cell with a self-calibration function. Background technique [0002] Aluminum electrolysis is a complex electrochemical reaction process, which is subject to the coupling effects of multiple physical fields such as electric field, magnetic field, thermal field, and flow field. The complexity of aluminum electrolysis production conditions and the harsh production environment lead to the lack of methods and equipment for on-line monitoring of the aluminum electrolysis process, and the anode current is a very important data in the aluminum electrolysis production, which is related to various conditions in the aluminum electrolysis production are closely related. The change of the anode current distribution will cause the change of the curren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/20G01R19/25
CPCC25C3/20G01R19/25
Inventor 尹怡欣王家齐崔家瑞肖高奇徐正光张森王粉花
Owner UNIV OF SCI & TECH BEIJING
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