发明名称 |
MULTI-FUNCTION LANCE FOR A VACUUM DEGASSING CHAMBER AND A METHOD OF USING THE SAME |
摘要 |
<p>A multi-function lance for insertion into a vacuum degassing chamber, includes a top-blown oxygen lance provided as a path for gaseous oxygen. A nozzle is provided at a downstream end of the oxygen path used for blowing oxygen onto a molten metal. A water-cooled jacket surrounds the outer periphery of the top-blown oxygen lance. At least a set of paths for a fluid fuel and a gas for burning the fuel is positioned in a multi-function lance,namely in the water- cooled jacket, and a combustion burner is provided at a downstream end of the path. By using the multi-function lance according to the present invention, not only a safer and shorter preheating operation is enabled, but also oxygen lancing, temperature elevation of molten steel, and heating of the vacuum degassing apparatus itself are smoothly realized.</p> |
申请公布号 |
CA2308744(C) |
申请公布日期 |
2008.12.23 |
申请号 |
CA20002308744 |
申请日期 |
2000.05.17 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
ORITO, KENICHI;TAKADA, MASAAKI;KURIWAKI, KOUSEI |
分类号 |
C21C7/10;C21C5/46;C21C5/52;C21C5/54;C21C7/064;C21C7/068;C21C7/072;F23D14/22;F23M11/04 |
主分类号 |
C21C7/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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