Electric reduction furnace

Details Electric reduction furnace Electric reduction furnace

1989-06-19

1990-03-06

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Power supply system

H05B 7144

Patent

active

049072447

ABSTRACT:
An electric reduction furnace with a furnace vessel having a refractory lining and electrodes which are connected to a three-phase current power supply unit and which extend into the furnace vessel. In the region between, in each case, two first electrodes (21-22, 22-23, 23-21) and the wall of the furnace vessel, additional second electrodes (31-33) ae provided which form with each two of the first electrodes substantially isosceles triangles. The additional second electrodes (30-33) extend substantially parallel to the first electrodes (21-23) and are electrically connected to the furnace lining (14).

REFERENCES:
patent: 1244415 (1917-10-01), Booth
patent: 3949151 (1976-04-01), Kerton
patent: 4406008 (1983-09-01), Konig et al.
patent: 4821284 (1989-04-01), Janiak et al.

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