Blow lance for treating molten metal in metallurgical vessels

Details Blow lance for treating molten metal in metallurgical vessels Blow lance for treating molten metal in metallurgical vessels

1987-03-12

1988-12-20

Rutledge, L. Dewayne

Metallurgical apparatus

Means for introducing fluent into vessel, e.g., tuyere

Having means preventing damage to introducing means, e.g.,...

266225, C21C 548

Patent

active

047921269

ABSTRACT:
A blow lance for treating molten metal comprising a concentric metal pipe structure enclosed within a ceramic covering with a space defined between the pipe structure and the covering. A layer of heat-resistant elastic fibrous material, excluding a binder, is positioned in the space. Ducting means forming coolant ducts are located between the concentric pipes.

REFERENCES:
patent: 4097030 (1978-06-01), Desaar
patent: 4296921 (1981-10-01), Hayashi

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