KILLING METHOD OF SLUG

To provide a killing method of slug which can kill the forming of the slug in inexpensive price in a stand-by state that blowing process is not carried out.SOLUTION: In a killing method of slug 4 in converter-type smelting furnace 1 having a top-blown lance 12, molten iron 3 and the slug 4 is contai...

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Bibliographische Detailangaben
Hauptverfasser:	HAYASHI YOSHIYA, IWAKI YOZO, INOUE DAICHI, MORITA KEI
Format:	Patent
Sprache:	eng ; jpn
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:	To provide a killing method of slug which can kill the forming of the slug in inexpensive price in a stand-by state that blowing process is not carried out.SOLUTION: In a killing method of slug 4 in converter-type smelting furnace 1 having a top-blown lance 12, molten iron 3 and the slug 4 is contained to a furnace body 11 of the smelting furnace 1. In a stand-by state that blowing process blowing gas 2 containing oxygen from the top-blown lance 12 to the molten iron is not carried out, when the slug 4 in the furnace body 11 is forming, the gas 2 is blown into the furnace body 11 from the top-blown lance 12.SELECTED DRAWING: Figure 1 【課題】吹錬処理が行われていない待機状態において、より安価に、スラグのフォーミングを鎮静させることができるスラグの鎮静方法を提供すること。【解決手段】上吹きランス１２を有する転炉型の精錬炉１におけるスラグ４の鎮静方法であって、精錬炉１の炉体１１に溶鉄３及びスラグ４が収容され、上吹きランス１２から酸素を含むガス２を溶鉄に吹き付ける吹錬処理が行われていない待機状態において、炉体１１内のスラグ４がフォーミングした場合に、上吹きランス１２から炉体１１内にガス２を吹き込む。【選択図】図１