Bottom of an electric smelt furnace, in particular of a direct current one

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 t...

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Bibliographische Detailangaben
Hauptverfasser:	ZOERCHER, HEINZ, MEGER, PETER, RADKE, DIETRICH
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OPEN SINTERING OR LIKE APPARATUS OVENS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS
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Beschreibung
Zusammenfassung:	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.