Anode for a direct current arc furnace

F - Mech Eng,Light,Heat,Weapons – 27 – D

Patent

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Details

F27D 11/08 (2006.01) C21C 5/52 (2006.01) F27B 3/08 (2006.01) H05B 7/06 (2006.01) F27B 3/12 (2006.01)

Patent

CA 2073222

An anode for a direct current arc furnace is proposed, in which at least part of the area of the furnace receiving the melt is provided on the inside with an electrically conductive refractory lining, which is electrically connected to the conductor located on the outside and in which a cathode is positioned vertically above the melt. The electrically conductive lining (3, 4; 9) and/or the conductor (1, 8) have varying values with respect to their electrical characteristics in the circumferential direction relative to the vertical axis of the cathode (2; 11), so that there is a planned, asymmetrical current distribution on the furnace bottom.

Anode pour four à arc à courant continu dans lequel au moins une partie de l'aire du four recevant la matière à fondre comprend, à l'intérieur, un garnissage réfractaire électriquement conducteur, qui est raccordé électriquement au conducteur situé à l'extérieur et dans lequel une cathode est positionnée verticalement au-dessus de la matière à fondre. Le garnissage électriquement conducteur (3, 4; 9) et/ou le conducteur (1, 8) présentent des valeurs variables pour ce qui est de leurs caractéristiques électriques en direction circonférentielle par rapport à l'axe vertical de la cathode (2; 11), de sorte qu'il y ait une distribution asymétrique, prévue, de courant sur la sole du four.

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