Air cooled gas injection lance

Details Air cooled gas injection lance Air cooled gas injection lance

1988-11-23

1990-07-17

McDowell, Robert

Metallurgical apparatus

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

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

266225, C21C 532

Patent

active

049416464

ABSTRACT:
An air cooled refractory covered injection lance for introducing reactive gases below the surface of a molten metal bath where the lance is provided with means to surround the reactive gas conduit with a high velocity cooling fluid to prevent thermal decomposition of the reactive gas prior to its injection into the molten metal bath.

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patent: 4767598 (1988-08-01), Kinosz
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