Electrode holder assembly and electrode clamp for electric arc f

Details Electrode holder assembly and electrode clamp for electric arc f Electrode holder assembly and electrode clamp for electric arc f

1984-04-11

1987-03-24

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Electrode support

373 99, H05B 7101

Patent

active

046530665

ABSTRACT:
An electrode holder assembly for a cylindrical electric arc melting furnace permits reduction of the electrode pitch circle diameter spacing the electrodes farther from the refractory lining reducing refractory wear and lengthening cycles between relining. The assembly also permits more power to be introduced while reducing overall reactance, both resulting in a more efficient furnace. The arrangement also provides reduced melting time in turn resulting in more furnace capacity, thus reducing electrode consumption per ton of molten metal. The arrangement is achieved by an improved simplified and compact differential clamp mounted inboard of a relatively thin U-shape clamp enabling the distal ends of the two outer arms of the three mast arms employed to be angled toward each other and the center mast arm to reduce the diameter of the electrode pitch circle.

REFERENCES:
patent: 2335344 (1943-11-01), Le Tourneau
patent: 3379816 (1968-04-01), Hozven
patent: 4182927 (1980-01-01), Phillips
patent: 4385391 (1983-05-01), Hillers et al.

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