METHOD FOR REDUCING VISIBLE DUST DURING POURING MELTS INTO LADLE

PURPOSE: A method for preventing the generation of visible dust in tapping molten iron is provided to inject limestone inside a ladle in tapping the molten iron dephosphorized in a dephosphorizing furnace to the ladle, thereby effectively preventing the generation of the visible dust in tapping the...

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Bibliographische Detailangaben
Hauptverfasser:	JEONG, JONG CHEOL, SIN, EON GYUN, LIM, SU TEAK
Format:	Patent
Sprache:	eng ; kor
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:	PURPOSE: A method for preventing the generation of visible dust in tapping molten iron is provided to inject limestone inside a ladle in tapping the molten iron dephosphorized in a dephosphorizing furnace to the ladle, thereby effectively preventing the generation of the visible dust in tapping the molten iron. CONSTITUTION: A method for preventing the generation of visible dust in tapping molten iron injects limestone inside ladle(2) within one-third of time for tapping passes after initiating to tap the molten iron. The limestone is injected inside the ladle before initiating to tap the molten iron. Inert gas is jetted inside the ladle simultaneously with initiating to tap the molten iron. The total amount of the limestone injected inside the ladle does not exceed 300 kg per one charge. [Reference numerals] (AA) Limestone