METHOD FOR OPERATING CONVERTER UTILIZING BLEND INCLUDING PRESS-FORMED SCRAP OF WASTE CAR

PROBLEM TO BE SOLVED: To stably keep the copper concentration of produced molten steel to not higher than a product standard without developing defective ignition when blowing is started in the case of producing the molten steel with oxygen blowing by blending the press-scrap of waste car as part of...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	MIZUKAMI HIDEAKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To stably keep the copper concentration of produced molten steel to not higher than a product standard without developing defective ignition when blowing is started in the case of producing the molten steel with oxygen blowing by blending the press-scrap of waste car as part of iron source. SOLUTION: In the case of producing the molten steel in a converter by firstly charging the press-formed scrap obtained with the press-formation of the waste car, then charging molten iron and thereafter supplying oxygen, the blending ratio R(%) of the press-formed scrap is regulated to the range satisfying the following formula (1) against the copper component standard X (mass%) in the produced molten steel and the apparent bulk density ρ (kg/m ) of the press-formed scrap is regulated to >=400 kg/m and in the range of satisfying the formula (2) against the blending ratio R. R=200R-500...(2).