METHOD OF SMELTING OF FERRO-SILICON ALLOYS

METHOD OF SMELTING OF FERRO-SILICON ALLOYS

FIELD: metallurgy; smelting of ferro-silicon alloys at 60-70% content in three-phase in ore-smelting electric furnaces with carbon lining of walls. ^ SUBSTANCE: proposed method consists in differential charge of burden materials on furnace top during operation of furnace; burden is fed into three zo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MIZIN VLADIMIR GRIGOR'EVICH, NIKULIN ALEKSANDR ALEKSANDROVICH, KONONENKO ALEKSANDR VALENTINOVICH, BERSHITSKIJ IGOR' MIKHAJLOVICH, LAVROV ALEKSANDR SERGEEVICH
Format: Patent
Sprache:eng ; rus
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:FIELD: metallurgy; smelting of ferro-silicon alloys at 60-70% content in three-phase in ore-smelting electric furnaces with carbon lining of walls. ^ SUBSTANCE: proposed method consists in differential charge of burden materials on furnace top during operation of furnace; burden is fed into three zones of furnace top whose width is equal to 0.7-1.2 diameters of electrode; content of silica in charge is 70-100% by mass. Proposed method makes it possible to form buffer zones in gap between electrodes and furnace wall which are enriched with silica at increased electrical resistance, thus reducing fraction of peripheral shunting currents with no change in furnace wall lining. ^ EFFECT: enhanced efficiency.