Rio Tinto Alcan International Limited

Aluminum Pechiney

E.c.l.

Fives Ecl

Aluminium Pechiney

Serge Despinasse

Yves Rochet

Alain Fernandez De Grado

Olivier Martin

Patrick Delescluse

Frédéric Brun

Jérôme Guerin

Alain Rose

Sandra Berthe

Frederic Brun

Jerome Guerin

Extraction device designed to extract a short-circuiting wedge inserted between two conductors to take an electrolysis cell offline. The extraction device includes a means of gripping said wedge and, in conjunction with the upper horizontal face of each conductor, at least one jack directed vertically and including a body and a stem,

Device for extracting short-circuiting wedges designed for switching in an electrolysis cell for the production of aluminum

The electrical connection device connecting the cells in series comprises:

Electrical connection device, for connecting between two successive cells of a series of cells for the production of aluminium

The invention relates to a device () and a method for short-circuiting a specified electrolysis in a row of electrolysis cells intended for the production of aluminum. This device includes a bridging member () including at least two opposite contact arms and at least one bridging conductor electrically that electrically connects the contact arms. The contact arms are shaped like a wedge. The device further includes a clasping member () including a frame and a least two opposite thrust members. The clasping member () is fit to embrace the bridging member () so that each thrust member bears on each contact arm and so that, upon moving the contact arms with respect to the clasping member, each thrust member urges the corresponding contact arm towards the conductors () inserted between the contact arms, so as to create and secure a short-circuit. The invention makes it possible to short-circuit electrolysis cells with increased amperages.

Device and method for short-circuiting one or more cells in an arrangement of electrolysis cells intended for the production of aluminium

The purpose of this invention is a leak limiter () of an electrolytic cell () for the production of aluminum, fitted with confinement means comprising passage openings for the insertion of anode stems (), characterized in that it comprises at least one support (), capable of surrounding all or part of an anode stem, and at least one flexible sealing body () arranged around all or part of the periphery () of the support () and designed to close off all or some of the free space between the inside edge of an opening and an anode stem (). This invention improves the leak tightness of covering means used in electrolytic cells.

Electrolytic cell leak limiter

Growing community of inventors

Fontcouverte-La Toussuire, France

Serge Despinasse