Real-time measurement device for temperature and current of through-flow bus of aluminum electrolysis cell

Abstract

The invention discloses a real-time measurement device for the temperature and the current of a through-flow bus of an aluminum electrolysis cell. One ends of a temperature measurement element (2) and a voltage probe (3) are connected with the through-flow bus (1) of an aluminum electrolysis cell, and the other ends of the temperature measurement element (2) and voltage probe (3) are connected with a data conditioning collector (5) by a data connecting line; and the data conditioning collector (5) is connected with an upper industrial controller (6) via a data connecting line. According to the real-time measurement device, the voltage, the current and the temperature signal intensity and the variation tendency thereof of a plurality of through-flow bus can be simultaneously monitored on line; and on the basis of multi-dimensional data and tendency, the operation characteristics of the through-flow bus and the electrochemical reaction relevant to the signal data are judged and researched to form a multi-channel and multi-variable cell situation dynamic model so as to provide a new support for more accurately controlling the electrolysis cell in time.

Description

technical field

[0001] The invention relates to an aluminum electrolytic cell, in particular to a real-time on-line monitoring device for the flow state of the aluminum electrolytic cell. Background technique

[0002] The existing tank condition control systems at home and abroad are all based on "tank voltage". The in-depth research and long-term application of the vertical and horizontal relationship between concentration control and aluminum fluoride feeding control has reached a considerable height. The mining of the "slot voltage" data signal has almost reached the extreme,

[0003] With the enlargement of the capacity of the electrolytic cell, the capacity of the cell has developed from 200kA to 300kA, 400kA, and 500kA. The aspect ratio of the aluminum electrolytic cell has risen sharply. It is already difficult to study and judge such complex changes in tank conditions by relying on a single tank voltage monitoring technology. Therefore, the development entry point ...

Examples

Embodiment 1

[0013] Such as figure 1 , the temperature measuring element 2 and the voltage probe 3 obtain the temperature and voltage difference information of the aluminum electrolytic cell bus 1, the measurement information is transmitted to the data conditioning collector 5 through the data connection line 4 for preprocessing, and then transmitted to the upper position through the data connection line 4 The analysis and display of the current is carried out in the industrial control machine 6 . The data conditioning collector 5 is integrated in the upper industrial control machine 6 .

Embodiment 2

[0015] The temperature measuring element 2 and the voltage probe 3 can be arranged in groups to measure the temperature and voltage values ​​of multiple busbars at the same time, and multiple groups of measurement information are transmitted to a data conditioning collector 5 through the data connection line 4, and the data conditioning collector 5 performs digital measurement. The unified conversion is then transmitted to the upper industrial control machine 6 through the data connection line 4 for analysis and display of multiple groups of currents.

technical field

[0001] The invention relates to an aluminum electrolytic cell, in particular to a real-time on-line monitoring device for the flow state of the aluminum electrolytic cell. Background technique

[0002] The existing tank condition control systems at home and abroad are all based on "tank voltage". The in-depth research and long-term application of the vertical and horizontal relationship between concentration control and aluminum fluoride feeding control has reached a considerable height. The mining of the "slot voltage" data signal has almost reached the extreme,

[0003] With the enlargement of the capacity of the electrolytic cell, the capacity of the cell has developed from 200kA to 300kA, 400kA, and 500kA. The aspect ratio of the aluminum electrolytic cell has risen sharply. It is already difficult to study and judge such complex changes in tank conditions by relying on a single tank voltage monitoring technology. Therefore, the development entry point ...

Examples

Embodiment 1

[0013] Such as figure 1 , the temperature measuring element 2 and the voltage probe 3 obtain the temperature and voltage difference information of the aluminum electrolytic cell bus 1, the measurement information is transmitted to the data conditioning collector 5 through the data connection line 4 for preprocessing, and then transmitted to the upper position through the data connection line 4 The analysis and display of the current is carried out in the industrial control machine 6 . The data conditioning collector 5 is integrated in the upper industrial control machine 6 .

Embodiment 2

[0015] The temperature measuring element 2 and the voltage probe 3 can be arranged in groups to measure the temperature and voltage values ​​of multiple busbars at the same time, and multiple groups of measurement information are transmitted to a data conditioning collector 5 through the data connection line 4, and the data conditioning collector 5 performs digital measurement. The unified conversion is then transmitted to the upper industrial control machine 6 through the data connection line 4 for analysis and display of multiple groups of currents.

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