Process for changing anodes in an electrolytic aluminum...

Details Process for changing anodes in an electrolytic aluminum... Process for changing anodes in an electrolytic aluminum...

2005-08-26

2008-09-09

Bell, Bruce F (Department: 1795)

Electrolysis: processes, compositions used therein, and methods

Electrolytic synthesis

Utilizing fused bath

C029S709000, C029S720000, C029S721000, C029S729000, C029S746000, C029S749000, C029S757000, C029S759000, C029S762000, C212S175000

Reexamination Certificate

active

07422675

ABSTRACT:
A process for changing an anode of a cell for the production of aluminum by fused bath electrolysis including a plurality of anodes. According to the invention, an anode handling tool is used including a positioning device, a gripping device and a sensor detecting the vertical position of the gripping device, and the position sensor is used to measure the vertical distances traveled by the gripping device with respect to a reference level N. At least one sound or electromagnetic waves beam is then produced in a determined reference line or plane and the passage of the anode in the beam is used to measure the distances. The vertical position of the replacement anode in the cell is determined starting from the values obtained for the traveled distances and the replacement anode is put into this position in the place initially occupied by the spent anode.

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Bouchard et al, “New apparatus for automatic positioning and replacement of anodes,” Aluminium, 80:7-8, pp. 820-822 (2004), no month available.

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