Floor of electrically heated melting furnace, particularly a direct current furnace

Abstract From the Canadian patent

An electrically heated melting furnace preferably a, direct current electric arc furnace has a floor provided with a, lining of refractory material and with an electrode comprised 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. The service life of the lining is improved by forming the electrically conductive paths as 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. 85/133 z AK/Kn