A METHOD FOR MANUFACTURING PIG IRON IN AN ELECTRICAL SMELTING FURNACE AND ASSOCIATED ELECTRICAL SMELTING FURNACE

The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 an...

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Bibliographische Detailangaben
Hauptverfasser:	HUBER, Jean-Christophe, SANCHEZ, Mathieu
Format:	Patent
Sprache:	eng ; fre
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 FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MANUFACTURE OF IRON OR STEEL 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:	The invention deals with a method for manufacturing pig iron in an electrical smelting furnace 13 comprising a vessel 20, said method comprising the following successive steps: − loading DRI product in said vessel 20 − melting said DRI product to form a pig iron layer 14 topped by a slag layer 23 and − injecting a desulphurizing reagent directly in said pig iron layer 14. It also deals with the manufacturing of steel from said pig iron and with the associated electrical smelting furnace. L'invention concerne un procédé de fabrication de fonte brute dans un four de fusion électrique (13) comprenant une cuve (20), ledit procédé comprenant les étapes successives suivantes : le chargement de produit de FRD dans ladite cuve (20) ; la fusion dudit produit de FRD pour former une couche de fonte brute (14) surmontée d'une couche de laitier (23) ; et l'injection d'un réactif de désulfuration directement dans ladite couche de fonte brute (14). L'invention concerne également la fabrication d'acier à partir de ladite fonte brute et le four de fusion électrique associé.