Service module with at least one anode clamp and means for...

C - Chemistry – Metallurgy – 25 – C

Patent

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Details

C25C 3/10 (2006.01) C25C 3/12 (2006.01) C25C 3/16 (2006.01)

Patent

CA 2674261

The invention relates to a service module (13) for a series of electrolysis cells (2) for producing aluminium by igneous electrolysis, each cell including a series of anodes (3) with a metal rod (4) for the attachment and the electrical connection of the anodes to an anodic frame (30), wherein said service module includes a frame that can be attached to a mobile member and at least one anode handling unit connected to the frame, characterised in that it further comprises an activator (70, 80, 245, 20, 20') connected to said anode handling unit and capable of applying at least a force or a shock on the anode rod (4) with a strength such that, even if the rod is firmly maintained in contact with the anodic frame, the contact surfaces undergo a relative displacement having an amplitude that is sufficient for their surface state to be modified and the electric contact improved. The activator is advantageously a jack or a shock generator connected to the anode clamp.

Module de service (13) d'une série de cellules d'électrolyse (2) destinée à la fabrication d'aluminium par électrolyse ignée, chaque cellule comprenant une série d'anodes (3) munies d'une tige métallique (4) destinée à la fixation et au raccordement électrique des anodes à un cadre anodique (30), ledit module de service comprenant un châssis apte à être fixé sur un élément mobile, et au moins une unité de manutention des anodes reliée audit châssis, caractérisé en ce qu'il comporte également, solidaire de ladite unité de manutention des anodes, un activateur (70, 80, 245, 20, 20') apte à exercer au moins une force ou un choc sur la tige d'anode (4), avec une intensité telle que, bien que la tige soit fermement maintenue en contact contre le cadre anodique, les surfaces de contact subissent un déplacement relatif d'une ampleur suffisante pour que leur état de surface soit modifié et que le contact électrique s'en trouve amélioré. Avantageusement, l'activateur est un vérin ou un générateur de chocs solidaire de la pince à anodes.

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