Online minor repair method for 300/380KA large-scale prebake cells
A 380KA, pre-baked tank technology, applied in the electrolysis process, electrolysis components, etc., can solve the problems of chemical and electrochemical corrosion, damage of cathode carbon lining, damage of cathode carbon lining, etc., to protect the environment and prolong the service life , The effect of saving repair costs
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[0022] Example 1: The foundation of an aluminum electrolysis work area has unbalanced settlement, and the settlement of the side B of the aluminum outlet end of the 2139# prebaking tank is more serious. The corner block and the adjustment block cause the insulation failure of the pre-baked tank body, the corner block is connected to the shell of the pre-baked tank for conduction, and the corner side block breaks down (from the cleaning site, the shell of the pre-baked tank comes out of the aluminum end B There are three vertical electric shock holes on the contact surface of the side corners, with a diameter of about 10mm. The side blocks at the breakdown site are all graphite side blocks, which have good electrical conductivity) and are damaged, resulting in damage to the tank shell.
[0023] In order to quickly repair the prebaked tank, the method adopted includes the following steps:
[0024] 1) When it is found that the side of the pre-baking tank has a red furnace or a fu...
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