发明名称 |
Lance/burner for molten metal furnace |
摘要 |
A method for effectively providing main gas into a pool of molten metal, which is particularly useful for use in an electric arc furnace. The method employs combustion of secondary oxygen with fuel to form a flame envelope around a main gas stream which protects the main gas from entrainment of ambient gases as it passes through the headspace of the furnace. This enables the gas to retain to a substantial degree its original force upon injection into the headspace and thus may be injected into the furnace at a safe distance from the molten metal surface while still achieving substantially complete penetration into the molten metal. <IMAGE> |
申请公布号 |
ZA9807865(B) |
申请公布日期 |
1999.03.02 |
申请号 |
ZA19980007865 |
申请日期 |
1998.08.28 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
PRAVIN CHANDRA MATHUR;RONALD JOSEPH SELINES;JOHN ERLING ANDERSON |
分类号 |
C21C7/072;C21C5/46;C21C5/52;F27B3/22;F27D3/16 |
主分类号 |
C21C7/072 |
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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