CONVERTER BLOWING CONTROL METHOD AND CONVERTER BLOWING CONTROL SYSTEM

A converter blowing control method includes: calculating, by heat balance calculation and material balance calculation, an amount of oxygen to be supplied and an amount of a cooling material or a rising heat material to be charged for controlling a temperature and a component concentration of molten...

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Bibliographische Detailangaben
Hauptverfasser:	Amano, Shota, Chatani, Harutaka, Nonaka, Toshiki, Takahashi, Yukio, Kikuchi, Naoki, Sugino, Tomohiro, Kawabata, Ryo
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Beschreibung
Zusammenfassung:	A converter blowing control method includes: calculating, by heat balance calculation and material balance calculation, an amount of oxygen to be supplied and an amount of a cooling material or a rising heat material to be charged for controlling a temperature and a component concentration of molten steel at end of blowing in a converter to target values; and controlling the blowing in the converter based on the calculated amount of oxygen to be supplied and the calculated amount of a cooling material or a rising heat material to be charged. A temperature of molten iron is used as a raw material for blowing, which is a target of the heat balance calculation, is used as a charged molten iron temperature used in the heat balance calculation, the temperature of molten iron being measured during a period when the molten iron is charged into the converter.