METHOD FOR MELTING COLD IRON SOURCE IN ARC MELTING FURNACE

PROBLEM TO BE SOLVED: To provide a melting method of cold iron source, by which heat conductivity is improved to scrap from arc and generated gas in a melting period. SOLUTION: An arc melting furnace having the vol. in the furnace which can charge the whole quantity of scrap as one melting quantity...

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Bibliographische Detailangaben
1. Verfasser:	MIZUKAMI HIDEAKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING KILNS LIGHTING 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 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 WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a melting method of cold iron source, by which heat conductivity is improved to scrap from arc and generated gas in a melting period. SOLUTION: An arc melting furnace having the vol. in the furnace which can charge the whole quantity of scrap as one melting quantity in the initial charging chance, and oxygen for primary combustion is blown to execute oxidize-combustion of auxiliary fuel and scrap during melting and refining. Further, as the shape of the furnace body, the one having the relation of L/D=0.6-1.4 between the height L from molten steel surface in the furnace to the upper end of side wall in the furnace and the inner diameter D of the furnace, is used. The oxygen for primary combustion is made to >=40Nm /t.