发明名称 |
Lance/burner for molten metal furnance |
摘要 |
A method for 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.
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申请公布号 |
US5883917(A) |
申请公布日期 |
1999.03.16 |
申请号 |
US19970819812 |
申请日期 |
1997.03.18 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
MATHUR, PRAVIN CHANDRA;SELINES, RONALD JOSEPH;ANDERSON, JOHN ERLING |
分类号 |
C21C7/072;C21C5/46;C21C5/52;F27B3/22;F27D3/16;(IPC1-7):H05B7/00 |
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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