Method of feeding alumina to an aluminium electrolytic cell...

Details Method of feeding alumina to an aluminium electrolytic cell... Method of feeding alumina to an aluminium electrolytic cell...

C - Chemistry, Metallurgy

25

C

204/203

C25C 3/14 (2006.01)

Patent

CA 1134321

ABSTRACT OF THE DISCLOSURE A method of feeding alumina to a S?derberg type aluminium electrolytic cell characterized by forming a box body having an opening in the upper part and an opened lower end on the side of the anode of said electrolytic cell with an anode casing, a dam plate located outside said anode casing and above a freeze of said electrolytic cell and two side plates covering spaces between said anode casing and said dam plate, charging alumina from said opening so that said alumina is stored in said box body and simultaneously flows out from the lower end of said dam plate to accumulate on said freeze, forming a slope in response to its angle of repose, and thereby, when said freeze is broken, the accumulated alumina is charged into the electrolytic bath. of said electrolytic cell and simultaneously the alumina stored in said box body flows out spontaneously to form a new slope of accumulated alumina, and an apparatus for the same.

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