Extractor device of the blocks of the short - circuiting intended to the circuit of an electrolysis cell for the production of aluminium

摘要

Extractor device (30) intended to extract a shim (20) of the short - circuiting inserted between two conductors (24 and 25) for carrying out of the circuit of an electrolysis cell (2). The extractor device (30) comprises a gripping means (31) of said block, and, associated with the upper horizontal surface (240 and 250) of each conductor (24, 25), at least one jack (32) is oriented vertically and comprising a body (320) and a rod (321), a) the rod (or the body) being integral with at least one bearing face is horizontal (335) oriented downward and arranged in such a way that, when the extractor device is placed at the top of said spacer to be extracted, the upper horizontal surface (240 and 250) of each conductor (24, 25) is located at the level of a horizontal bearing surface (335), b) the said body (or rod) being connected to said gripping means (31) of said spacer, so that, when the jack (32) is actuated in order to carry out the extraction of said spacer, said actuator exerts, on the conductors and on the said wedge, of the opposing forces tending to separate them.