Air cooled refractory lance

Details Air cooled refractory lance Air cooled refractory lance

1984-06-04

1985-11-05

Skiff, Peter K.

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

By means introducing treating material

266225, 266266, 266270, C21C 532

Patent

active

045508984

ABSTRACT:
An air cooled refractory lance useful for either inert gas stirring or injection of oxygen into molten metal has an elongated refractory body having an axial bore terminating inwardly of one end in which several metal conduits are positioned with one of the conduits extending outwardly of the refractory body and forming a support and a conduit for air being introduced into the lance for cooling. Another of the conduits extends completely through the refractory body in coaxial relation and provides a path for a gas stream directed therethrough.

REFERENCES:
patent: 3082997 (1963-03-01), Kurzinski
patent: 3115405 (1963-12-01), Boyd
patent: 3223398 (1965-12-01), Bertram et al.
patent: 3379428 (1968-04-01), Dortenzo et al.
patent: 3521872 (1970-07-01), Themelis
patent: 3751019 (1973-08-01), Phillips
patent: 3898078 (1975-08-01), Huber

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