Crust breaker device for aluminum electrolysis cells

Chemistry: electrical and wave energy – Apparatus – Electrolytic

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204179, C25C 314

Patent

active

050788493

ABSTRACT:
A crust breaker device used to break crusts of aluminum electrolysis cells includes a member to be driven for instance a piston/cylinder device with a piston rod in axial movement, essentially in a vertical direction. To a lower part of the member is connected a cutter bar or crow bar which is designed to be moved through the crust and make a hole therein. The cutter bar is connected to, but electrically isolated from the member by means of a fire proof material having insulation properties and that is cast and then hardened.

REFERENCES:
patent: 3216918 (1965-11-01), Duclaux
patent: 4377452 (1983-03-01), Casdas
patent: 4617100 (1986-10-01), Broughton
patent: 4654963 (1987-04-01), Sugalski
patent: 4956054 (1990-09-01), Dronnesund et al.

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