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Aluminum electrolytic cell anode voltage signal acquisition device

An anode voltage and signal acquisition technology, applied in the direction of measuring current/voltage, measuring device, measuring electrical variables, etc., can solve the problems of shortening the life of the electrolytic cell, cracks at the bottom of the electrolytic cell, depolarization, etc., and achieve good measurement stability and accuracy. The effect of increasing the retractable distance of the probe and reasonable structure

Inactive Publication Date: 2013-04-24
ZHENGZHOU ZHONGSHI CELL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of current and the continuation of the roasting process, if the current unevenness is not adjusted in time, it will reach a very serious level, and the severe bias current of the electrolytic cell will cause cracks and even early damage to the bottom of the electrolytic cell due to severe uneven heating. It not only reduces the quality of primary aluminum and shortens the life of the electrolytic cell; but also the excessive current of the anode will cause the welding seam of the anode conductive rod to melt and cause depolarization accidents, resulting in huge economic losses

Method used

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  • Aluminum electrolytic cell anode voltage signal acquisition device
  • Aluminum electrolytic cell anode voltage signal acquisition device
  • Aluminum electrolytic cell anode voltage signal acquisition device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0018] Embodiment one: see figure 1 . The aluminum electrolytic cell anode voltage signal acquisition device of the present invention comprises a millivolt voltage measuring probe 1 and a millivolt voltage monitoring bracket 6, the millivolt voltage monitoring bracket 6 is a strip plate, and one end (or both ends thereof) is provided There is a folded part 7, and the folded part 7 is provided with a strip-shaped insulating plate fixing hole, and the folded part at one end is fixed and installed with the insulating plate 2 through the insulating plate fixing hole, and two millivolt voltage measuring probes 1 is installed on the insulating board 2.

[0019] For the convenience of installation, the anode voltage signal acquisition device of the aluminum electrolytic cell is provided with upper and lower front and rear distance adjustment holes 5 parallel to the middle of the millivolt voltage monitoring bracket 6 .

Embodiment 2

[0020] Embodiment two: see figure 1 . The aluminum electrolytic cell anode voltage signal acquisition device of this embodiment is different from Embodiment 1 in that further, the insulating plate 2 adopts a strip-shaped high-temperature-resistant insulating plate, on which there are countersunk screw holes, through which the The head screw is fixed on the folded part of one end of the millivolt voltage monitoring bracket 6, and a probe fixing hole is respectively arranged at both ends of the high temperature resistant insulating board, and two millivolt voltage measuring probes are installed on the probe respectively. In the needle fixing hole, the distance between the two millivolt voltage measuring probes is between 100 and 150mm.

Embodiment 3

[0021] Embodiment three: see figure 1 . The aluminum electrolytic cell anode voltage signal acquisition device of this embodiment is different from Embodiment 1 in that two insulating plates 2 are used, which are respectively fixed at both ends of the folded part 7 at one end of the millivolt voltage monitoring support 6, and each insulating plate There are countersunk screw holes for fixing the insulating plate and the folded edge part, and a probe fixing hole for installing the millivolt voltage measurement probe; the distance between the two millivolt voltage measurement probes is 100 Between ~150mm.

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Abstract

The invention relates to a voltage signal acquisition device of an on-line type aluminum electrolytic cell anode current distribution measurement system. The aluminum electrolytic cell anode voltage signal acquisition device comprises millivolt voltage measurement probes (1) and a millivolt voltage monitoring support (6), wherein the millivolt voltage monitoring support (6) is a strip-shaped plate, edgefold parts (7) are arranged at one end or two ends of the millivolt voltage monitoring support (6), insulation plates (2) are installed on the edgefold parts (7), and the two millivolt voltage measurement probes are installed on the insulation plates (2). An aluminum electrolytic cell anode conducting rod voltage measurement device is reasonable in structure, reliable in performance, and low in cost, a measured millivolt voltage signal of each electrolytic cell anode conducting rod is transmitted to a millivolt voltage signal processing unit nearby an electrolytic cell through a high-temperature-resistant signal shielding conductor, and on-line continuous monitoring of aluminum electrolytic cell anode current distribution can be achieved.

Description

technical field [0001] The invention relates to a signal acquisition device, in particular to a voltage signal acquisition device of an online aluminum electrolytic cell anode current distribution measurement system, which is applied to an aluminum electrolytic cell anode voltage monitoring system. Background technique [0002] In the production of large-scale series prebaked anode electrolyzers, especially at the start of roasting, uneven anode current distribution often occurs. With the increase of current and the continuation of the roasting process, if the current unevenness is not adjusted in time, it will reach a very serious level, and the severe bias current of the electrolytic cell will cause cracks and even early damage to the bottom of the electrolytic cell due to severe uneven heating. It not only reduces the quality of primary aluminum and shortens the life of the electrolytic cell; but also the excessive current of the anode will cause the welding seam of the a...

Claims

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Application Information

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IPC IPC(8): G01R19/00
Inventor 辛朋辉李君白云飞杜天章
Owner ZHENGZHOU ZHONGSHI CELL TECH
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