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Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace

United States Patent

December 27, 2005
View the Complete Patent at the US Patent & Trademark Office
The electrode arrangement uses vertically oriented electrodes with side wall contacts for an electrothermic smelting furnace for aluminum production. The side wall contacts are radially moveable into the furnace to compensate for wear on the contacts. The side wall contacts can be hollow to allow a slag forming charge to be fed to the furnace.
Aune; Jan Arthur (Enebakk, NO), Brinch; Jon Christian (Oslo, NO), Johansen; Kai (Kristiansand, NO)
Alcoa Inc. (Pittsburgh, PA)
10/ 646,507
August 23, 2003
The Government of the United States of America has rights in this invention, pursuant, to Contract No. DE-FC07-00ID 13900 with the United States Department of Energy.