METHOD FOR FERROALLOYS MANUFACTURE

The invention relates to the field of ferrous metallurgy. A method for ferroalloys manufacture involves melting of charge materials in the furnace, discharge of a melt from it in a ladle which are located in cascade, addition in a melt of limestone screening of CaO manufacture in the shaft furnaces,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BESPALOV OLEH LEONIDOVYCH, KULISH SERHII MYKOLAIOVYCH, KAPELIANOV VOLODYMYR YAKOVYCH, SEZONENKO OLEH MYKOLAIOVYCH, KONDAKOV EDUARD VIKTOROVYCH, KULISH ANDRII MYKOLAIOVYCH
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY METALLURGY OF IRON PRETREATMENT OF RAW MATERIALS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL PRODUCTION AND REFINING OF METALS TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention relates to the field of ferrous metallurgy. A method for ferroalloys manufacture involves melting of charge materials in the furnace, discharge of a melt from it in a ladle which are located in cascade, addition in a melt of limestone screening of CaO manufacture in the shaft furnaces, at that the specified refining additives are warmed up to temperature on 50 - 100 ?C below the temperature of CaCO3 dissociation and before the discharge of a melt from the furnace are loaded on a back surface of the first ladle in the cascade in quantity of 3-5 weight % from capacity of a melt in this ladle. The invention increases manufacture of ferroalloys and reduces the cost price of metal.