Crust breaking device of electrolytic aluminum tank

Abstract

The invention relates to a crust breaking device of an electrolytic aluminum tank. The crust breaking device comprises a crust breaking air cylinder, and a quick connecting structure is fixedly mounted on a piston rod at the lower end of the crust breaking air cylinder. A crust breaking assembly for crust breaking of the electrolytic tank is mounted below the quick connecting structure in a matched manner. According to the crust breaking device, the quick connecting structure is arranged between the crust breaking air cylinder and the crust breaking assembly, when the crust breaking assembly is maintained and replaced, two effect rods penetrate into the position between a supporting frame and a mounting frame, then force is applied upwards, the pressure of the crust breaking assembly does not act on a positioning pin at the moment, then a long hook is used for pulling a connecting piece outwards, the connecting piece overturns with a fixing lug as the rotating center, the positioning pin is pulled out, and separating of the crust breaking assembly and the quick connecting structure can be achieved. When the crust breaking assembly is maintained, a maintainer does not need to disassemble the crust breaking air cylinder and does not need to climb to the position above the electrolytic tank, the labor intensity of workers can be reduced, and personnel injury caused by careless falling can also be avoided.

Description

technical field [0001] The invention relates to the technical field of electrolytic aluminum equipment, in particular to a shelling device for an electrolytic aluminum tank. Background technique [0002] The shelling hammer of the electrolytic cell is one of the key consumable materials in the production of electrolytic aluminum. It is easily damaged by high-frequency wear and tear in a high-temperature and strong-corrosion environment for a long time. The hammer of ordinary materials has a service life of 3-4 months. , not only increases a lot of maintenance and replacement costs and workload, and affects the quality of primary aluminum, but also because of the characteristics of ordinary steel that is easy to adhere to the electrolyte, it is easy to cause balling on the club head, which directly affects the stable operation of the electrolytic cell. [0003] After the shelling hammer head of the existing electrolytic cell is finished shelling, a large amount of aluminum wa...

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Problems solved by technology

[0002] The shelling hammer of the electrolytic cell is one of the key consumable materials in the production of electrolytic aluminum. It is easily damaged by high-frequency wear and tear in a high-temperature and strong-corrosion environment for a long time. The hammer of ordinary materials has a service life of 3-4 months. , not only increases a lot of maintenance and replacement costs and workload, and affects the quality of primary aluminum, but also because of the characteristics of ordinary steel that is easy to adhere to the electrolyte, it is easy to cause balling on the club head, which directly affects the stable operation of the electrolytic cell

[0003] After the shelling hammer head of the existing electrolytic cell is finished shelling, a large amount of aluminum water and electrolyte will adhere to the shelling head. If it is not cleaned in time, it will solidify on the shelling hammer head, and the next The shell area of ​​the time and the electrolytic cell is large, and the fire hole cannot be opened at one time. The electrolytic personnel need to use the steel pier to strike the shelling hammer heavily to shake off the mixed slag of the electrolyte and the molten aluminum. However, this slag removal method It is very easy to cause the deformation of the shelling hammer head, which seriously reduces the service life of the shelling hammer head. The severe percussion force also affects the shelling cylinder, and the aluminum liquid and electrolyte solution immersed in the shelling hammer head will be blocked. The feeding port prevents alumina or fluoride salt from being added to the electrolytic cell;

[0004] Moreover, when replacing the existing shelling hammer head, the staff needs to climb to the top of the electrolytic tank for disassembly, which can easily cause the staff to fall down, and the replacement efficiency is very low

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