Aluminum electrolytic cell shelling hammer to the bottom automatic detection device

Abstract

The invention discloses an automatic checkout device for bottoming of a crust-breaking hammer of an aluminum electrolytic cell. The automatic checkout device comprises a crust-breaking cylinder fixed mount, a crust-breaking hammer connection plate, a high-temperature-resistant switch output signal line and a crust-breaking hammer bottoming detection switch; the crust-breaking hammer bottoming detection switch is fixedly disposed at the crust-breaking cylinder fixed mount; the crust-breaking hammer bottoming detection switch comprises an insulative trigger rotary plate and a microswitch; one end of the insulative trigger rotary plate is under the crust-breaking hammer connection plate and at the bottoming position of the crust-breaking hammer connection plate; and the microswitch is connected with the high-temperature-resistant switch output signal line. By utilizing switch signals output by the crust-breaking hammer bottoming detection switch of the electrolytic cell, the crust-breaking hammer connected with a crust-breaking cylinder piston rod is made to lift once bottoming, and the crust-breaking hammer does not stay in the electrolytic cell, so that the problem that the crust-breaking hammer is severely adhered with electrolyte is solved, ineffective crust breaking is avoided, and unblocked feed opening without jamming materials or piling materials is guaranteed, and thus the generation frequency of anode effect of the electrolytic cell is effectively reduced, energy is saved and consumption is reduced.

Description

technical field [0001] The invention relates to a detection device for detecting whether the shelling cylinder of an aluminum electrolytic cell has bottomed out, in particular to an automatic detection device for the bottom of a shelling hammer head of an aluminum electrolytic cell. Background technique [0002] The main purpose of the shelling system of the electrolytic cell is to effectively open the feeding port every time the material is discharged, so that the alumina powder can enter the electrolyte for electrolytic production; therefore, the shelling hammer only needs to hit the bottom and crush the The shell at the material opening can ensure smooth feeding, and there is no need for the shelling hammer to stay in the electrolyte. [0003] Due to the instability of the air pressure, the large difference in the lubrication in the cylinder, and the sealing of the original shelling cylinder, the speed and time of the shelling hammer hitting the bottom are quite different...

AI Technical Summary

Problems solved by technology

[0003] Due to the instability of the air pressure, the large difference in the lubrication in the cylinder, and the sealing of the original shelling cylinder, the speed and time of the shelling hammer hitting the bottom are quite different, so that the fast shelling hammer stays in the electrolyte. If it is too long, the shelling hammer will seriously adhere to the electrolyte, resulting in unsmooth and ineffective feeding, which will cause the anode effect of the electrolyzer; the slow shelling hammer cannot enter the electrolyte, resulting in invalid shelling and occurrence of Ineffective feeding conditions such as closed feeding port, material blocking, stacking, etc., cause the anode effect of the electrolytic cell

[0004] Therefore, there is an urgent need to develop a control device that immediately lifts the hammer after detecting that the shelling hammer hits the bottom, so that the shelling hammer does not stay in the electrolyte, effectively reduces the number of occurrences of the anode effect in the electrolytic cell, and solves the serious problem of the shelling hammer. The problem of sticking electrolyte, thus avoiding invalid shelling, so that the feeding port is unblocked, no material is blocked, and no material is piled up

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