Direct-current arc furnace plant

Details Direct-current arc furnace plant Direct-current arc furnace plant

1992-06-12

1993-12-28

Reynolds, Bruce A.

Industrial electric heating furnaces

Arc furnace device

Power supply system

373 72, 373101, 373102, 373108, H05B 711

Patent

active

052746631

ABSTRACT:
In direct-current arc furnace the arc is deflected in a direction away from the current supply means (19) through the action of the high-current lines (18) extending under the furnace vessel. This leads to the thermal overloading of a part of the furnace vessel walls. If the high-current lines (18a) are for the major part laid in a plane above the furnace bottom, on or below the furnace platform (20), and are taken downwards to the connection fittings (10) on the furnace bottom only on the side of the furnace vessel (1) opposite the current supply means, the arc will again burn symmetrically.

REFERENCES:
patent: 4018974 (1977-04-01), Andersson et al.
patent: 4038483 (1977-07-01), Stenkvist
patent: 4228314 (1980-10-01), Stenkvist
patent: 4403328 (1983-09-01), Lassander et al.
patent: 4550413 (1985-10-01), Lassander et al.
patent: 4577326 (1986-03-01), Bergman et al.
patent: 4606055 (1986-08-01), Lassander et al.
patent: 4821284 (1989-04-01), Janiak et al.
patent: 4856021 (1989-08-01), Janiak et al.
patent: 5134628 (1992-07-01), Stenkvist

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