Method and device for aluminium electrolytic bath short circuit power cut

Abstract

The invention discloses a method and device for short-circuit power failure of an aluminum electrolytic cell. A high-current switch is placed in advance on the aluminum electrolytic cell that needs short-circuit power failure in a series of aluminum electrolytic cells in a production workshop, and the high-current switch is turned off. state, connect conductive cables to both ends of the high-current switch, connect the conductive cable at one end of the high-current switch to the column busbar of the aluminum electrolytic cell that needs short-circuit power failure, and connect the conductive cable at the other end of the high-current switch to the other downstream On the column busbar of an aluminum electrolytic cell that does not need short-circuit power failure, and then close the high-current switch, the short-circuit power failure operation of the aluminum electrolytic cell can be realized. The invention not only has the advantages of being able to short-circuit and power off the aluminum electrolytic cells that need to be cut off when the series of aluminum electrolytic cells are powered on without affecting the production of the series of aluminum electrolytic cells, but also has the advantages of safe and convenient operation and simple structure.

Description

Technical field: [0001] The invention relates to a method and device for short-circuit power failure of aluminum electrolytic cells, in particular to a method and device for short-circuit power failure of one aluminum electrolytic cell in a series of aluminum electrolytic cells without power failure, belonging to short-circuit power failure of aluminum electrolytic cells technology field. Background technique: [0002] At present, domestic large-scale pre-baked aluminum electrolytic cells all adopt the operation procedure of manually opening the short-circuit opening, pulling out the insulating plate, and then manually closing the short-circuit opening when the large-scale pre-baked aluminum electrolytic cell needs to be overhauled and shut down. Since the aluminum electrolytic cell is in production, the column busbar carries a large current. Therefore, such an operation will cause sparks between the short circuit block and the busbar. This will not only affect the stable pr...

AI Technical Summary

Problems solved by technology

However, for more and more series of cells, the number of electrolytic cells that need to be overhauled every year is quite large, and frequent series power failures or lowering the series current to a very low level will cause a lot of difficulties in electrolytic production

This not only affects the production of the entire workshop, but also affects the quality of production due to the reduction of current. Therefore, many large aluminum companies in the world have not allowed the shutdown of electrolytic cells for power failure or current reduction of electrolytic series. short circuit operation

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