Industrial electric heating furnaces – Arc furnace device – Furnace body detail
Patent
1991-10-10
1992-12-22
Reynolds, Bruce A.
Industrial electric heating furnaces
Arc furnace device
Furnace body detail
373 65, 373 71, 373108, F27D 100
Patent
active
051739208
ABSTRACT:
In a direct-current electric-arc furnace, the bottom contact, that is the hearth electrode, must be insulated from the metallic shell of the furnace vessel by insulating material. For this purpose, the bottom plate carrying the bottom contact essentially forms the bottom of the furnace vessel. This bottom contact, with an insulating material, or a material which is at least a poor electrical conductor, inbetween, rests on a part, projecting radially inward, of the metallic vessel shell.
REFERENCES:
patent: 1369578 (1921-02-01), Trembour
patent: 4228314 (1980-10-01), Stenkvist
patent: 4277638 (1981-07-01), Stenkvist
Bochsler Walter
Eterovic Ante
Stenkvist Sven-Einar
Asea Brown Boveri Ltd.
Hoang Tu
Reynolds Bruce A.
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