SLAG LEVEL DETECTING METHOD AND METHOD FOR CONTROLLING LANCE BASED ON IT

PROBLEM TO BE SOLVED: To control the height of a top blowing oxygen lance based on a molten slag level in a metallurgy furnace which is detected with no use of a consumable slag level measuring probe. SOLUTION: A water-cooled panel 4 and the like, in which a coolant circulates, are provided which co...

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Bibliographische Detailangaben
Hauptverfasser:	SAWADA TERUTOSHI, SEKIGUCHI TAKESHI, KAWAKAMI MASAHIRO, IWASAKI KATSUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FERROUS OR NON-FERROUS ALLOYS FURNACES HEATING KILNS LIGHTING MANUFACTURE OF IRON OR STEEL MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON METERING BY VOLUME OVENS PHYSICS PRETREATMENT OF RAW MATERIALS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL PRODUCTION AND REFINING OF METALS RETORTS TESTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To control the height of a top blowing oxygen lance based on a molten slag level in a metallurgy furnace which is detected with no use of a consumable slag level measuring probe. SOLUTION: A water-cooled panel 4 and the like, in which a coolant circulates, are provided which comprises an internal cooling function for forced- cooling using the coolant. At least a part of the external surface of the panel and the like is so provided as to directly contact a gas atmosphere in a metallurgy furnace 1 in which a molten slag 15 is housed. The bath level of molten slag in the metallurgy furnaces is detected based on a heating value which the panel, and the like, comprising the internal cooling function receives in the metallurgy furnace. Based on the level of detected molten slag, the level of a top blowing oxygen lance 7 which vertically moves in the metallurgy furnace is controlled.