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Device and method for automatically detecting superheat degree and electrolysis temperature of aluminum electrolyte

A technology of aluminum electrolyte and aluminum electrolysis, which is applied in the direction of measuring devices, electric devices, thermometer parts, etc., can solve the problems that the measurement results cannot be entered into the control system in real time, the aluminum electrolysis control information is incomplete, and the manual input data lags, etc., to achieve Improve the level of intelligent control, improve labor productivity, and improve the effect of technical level

Pending Publication Date: 2019-02-22
NORTHEASTERN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This measurement method requires a lot of manpower and time, and is labor-intensive and low-efficiency.
Moreover, the measurement results cannot be entered into the control system in real time, and the superheat of the electrolyte is indirectly controlled by manual sampling and analysis of electrolyte molecules, which will result in incomplete aluminum electrolysis control information and lag in manual input data, which will affect the production of aluminum electrolysis

Method used

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  • Device and method for automatically detecting superheat degree and electrolysis temperature of aluminum electrolyte

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Effect test

Embodiment 1

[0036] like figure 1 Shown is a schematic diagram of the device for automatically detecting the superheat of the aluminum electrolyte and the electrolysis temperature in the present invention, the device includes a first temperature sensor 2, a second temperature sensor 6, a data transmission system, a data analysis system 4 and an aluminum electrolysis multifunctional day car. The data transmission system includes a compensation line 3 . The aluminum electrolysis multifunctional crane is manually operated to drive the first temperature sensor 2 and the second temperature sensor 6 into and out of the aluminum electrolyte through a preset program.

[0037] The first temperature sensor 2 and the second temperature sensor 6 are fixed in the protective sleeve 5 and installed on the automatic lifting device of the aluminum electrolysis multi-function crane. The top ends of the first temperature sensor 2 and the second temperature sensor 6 are connected with a compensation wire 3 ...

Embodiment 2

[0047]In the test of a 300KA series electrolytic cell in an aluminum plant, the temperature of the electrolyte in the electrolytic cell was measured to be 942°C, the initial crystal temperature of the electrolyte was 933°C, and the degree of superheat was 9°C by using the device in Example 1 of the present invention. The measured electrolyte temperature is consistent with the electrolysis temperature displayed by the tank control box.

[0048] Part of the electrolyte was sampled from the electrolytic cell, and the primary crystal temperature of the electrolyte was measured by the step cooling curve method to be 933.4°C, that is, the superheat of the electrolytic cell was 8.6°C. The test results obtained by using the device for automatically detecting the superheat of the aluminum electrolyte and the electrolysis temperature are similar to those obtained by traditional experimental techniques, and the measurement error is within the error range of the galvanic couple.

[0049] ...

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Abstract

The invention belongs to the technical field of inorganic chemistry, and particularly relates to a device and method for automatically detecting the superheat degree and electrolysis temperature of analuminum electrolyte. According to the method, when an anode of an aluminum electrolytic cell is replaced, an aluminum electrolyte superheat degree detecting sensor and an electrolysis temperature detecting sensor are inserted into the electrolyte, measurement data are transmitted to a data analysis system through a data transmission system, through analysis with the data analysis system, the aluminum electrolyte superheat degree and the electrolysis temperature are obtained, and the analysis results are transmitted to an aluminum electrolytic cell control system through the data transmissionsystem. Through the method, the electrolyte superheat degree and electrolysis temperature are monitored in real time, the data are transmitted to the cell control system, the labor intensity of workers is relieved, and the labor productivity and the intelligent control level of the electrolytic cell are improved.

Description

technical field [0001] The invention belongs to the technical field of inorganic chemistry, and in particular relates to a device and a method for automatically detecting the superheat degree and electrolysis temperature of an aluminum electrolyte. Background technique [0002] In recent years, with the rapid development of my country's electrolytic aluminum industry, the output of primary aluminum has increased sharply. The requirements for automation and unmanned production of aluminum electrolysis are increasing day by day. In the electrolytic production process, in order to ensure the stable operation of the electrolytic cell, it is necessary to maintain the material balance and heat balance of the electrolytic cell. At present, the material balance is achieved through computer control technology, and for the heat balance, although several control technologies are used, the credibility and effectiveness of the control effect are affected because the temperature paramete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/20G01K1/02G01K1/14G01K7/02G01K1/024
CPCG01K1/024G01K1/026G01K1/14G01K7/02C25C3/20
Inventor 王兆文刘风国陶文举杨酉坚石忠宁于江玉
Owner NORTHEASTERN UNIV
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