DC arc furnace

Details DC arc furnace DC arc furnace

1989-05-24

1990-08-07

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Furnace body detail

373108, H05B 700

Patent

active

049474057

ABSTRACT:
An upper electrode is mounted in the upper portion of a furnace and a bottom electrode is mounted in a bottom of the furnace. An electric arc is generated by introducing electric current to the upper and bottom electrodes and the raw materials charged in the furnace is melted. In the process of melting the materials, a mist of cooling water is sprayed by spray nozzles directly against the lower portion of the bottom electrode extruding downwards and the bottom electrode is cooled by the mist.

REFERENCES:
patent: 4566108 (1986-01-01), Buhler
patent: 4685112 (1987-08-01), Michelet et al.
patent: 4715041 (1987-12-01), Buhler et al.
patent: 4815096 (1989-03-01), Burwell

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