Floor of electrically heated melting furnace, particularly a dir

Details Floor of electrically heated melting furnace, particularly a dir Floor of electrically heated melting furnace, particularly a dir

1986-09-29

1987-09-08

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Furnace body detail

F27D 104

Patent

active

046929304

ABSTRACT:
An electrically heated melting furnace, preferably a direct current electric arc furnace, having a floor provided with a lining of refractory material and with an electrode comprised of a plurality of electrically conductive paths formed of an electrically conductive material which extends through the lining of refractory material from the inner floor surface toward the exterior, wherein the service life of the lining is improved in that the electrically conductive paths are composed of layers of at least one high melting point nonmetallic material which are connected with the refractory material, and which have a thickness of at most 5 mm.

REFERENCES:
patent: 4228314 (1980-10-01), Stenkvist
patent: 4435813 (1984-03-01), Stenkvist
patent: 4541099 (1985-09-01), Rappinger et al.

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