Direct-current arc furnace

Details Direct-current arc furnace Direct-current arc furnace

1992-06-19

1994-05-31

Reynolds, Bruce A.

Industrial electric heating furnaces

Arc furnace device

Power supply system

373102, 373104, 373108, 75 1026, 164254, H05B 7144

Patent

active

053175913

ABSTRACT:
In a direct-current arc furnace having a bottom contact (3) which has a large area, electromagnetically produced bath agitations are influenced by an electromagnet (9) disposed underneath the vessel bottom (4) such that the natural flow in the melt bath, caused by the current flow in the melt, is reversed in direction. In this way the stability of the bottom electrode (3) is substantially increased. The electromagnet (9) is preferably integrated into the electric supply system of the furnace and serves as a smoothing choke.

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