Device and method for short-circuiting one or more cells in...

C - Chemistry – Metallurgy – 25 – C

Patent

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C25C 3/16 (2006.01)

Patent

CA 2711536

The invention relates to a device (50) and a method for short-circuiting a specified electrolysis in a row of electrolysis cells intended for the production of aluminium. This device includes a bridging member (60) 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 (70) including a frame and a least two opposite thrust members. The clasping member (70) is fit to embrace the bridging member (60) 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 (201, 202) 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.

L'invention concerne un dispositif (50) et un procédé pour court-circuiter une électrolyse spécifiée dans une rangée de cellules d'électrolyse destinées à la production d'aluminium. Ce dispositif comprend un élément de pontage (60) équipé d'au moins deux bras de contact opposés et d'au moins un conducteur de pontage électrique qui connecte électriquement les bras de contact. Les bras de contact ont une forme de coin. Le dispositif comprend en outre un élément de préhension (70) équipé d'un cadre et d'au moins deux éléments de poussée opposés. L'élément de préhension (70) est adapté pour saisir l'élément de pontage (60) de sorte que chaque élément de poussée repose sur chaque bras de contact et de sorte que, lors du déplacement des bras de contact par rapport à l'élément de préhension, chaque élément de poussée pousse le bras de contact correspondant en direction des conducteurs (201,202) insérés entre les bras de contact de façon à créer et assurer un court-circuit. Selon l'invention, il est possible de court-circuiter des cellules d'électrolyse avec des ampérages accrus.

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