Direct-current electric-arc furnace and method of operating same

Details Direct-current electric-arc furnace and method of operating same Direct-current electric-arc furnace and method of operating same

1983-06-01

1985-10-22

Pellinen, A. D.

Industrial electric heating furnaces

Arc furnace device

Power supply system

373105, H05B 720

Patent

active

045493014

ABSTRACT:
An electric arc furnace comprising at least one pair of electrodes extending through the roof of the furnace for the creation of electric arcs between each of the electrodes and the charge to be melted, and a source for applying direct current to each of said pairs of electrodes, respectively of different polarities. Preferably the furnace contains also an electric probe extending through the bottom of the furnace to determine the potential of the molten charge and means for adjusting the vertical position of each electrode for maintaining the potential difference between each electrode and the molten charge at a predetermined value.

REFERENCES:
patent: 932835 (1909-08-01), Trillon
patent: 4254298 (1981-03-01), Svendsen

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