Metallurgical apparatus – Means for introducing fluent into vessel – e.g. – tuyere – With flow control means or internal flow guide
Patent
1988-01-11
1988-11-08
Rutledge, L. Dewayne
Metallurgical apparatus
Means for introducing fluent into vessel, e.g., tuyere
With flow control means or internal flow guide
266225, C21C 548
Patent
active
047830581
ABSTRACT:
A lance for treating molten metals useful for either inert gas stirring or injection of oxygen has an elongated refractory body formed in and around a metal tube in a portion of which a plurality of spirally wound metal tubes are positioned in side by side relation engaging the metal tube, the spirally wound tubes being mechanically locked into a refractory forming a core therein. The spirally wound metal tubes terminate at one end of the lance in a circular pattern to provide a tangential flow of gas flowing therefrom when gas such as argon is directed therethrough. The metal tubes communicate at their opposite ends with a secondary metal tube which in turn communicates with a fitting externally of the refractory body of the lance by which the lance may be supported and through which the desirable gas is supplied.
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Insul Company, Inc.
McDowell Robert L.
Rutledge L. Dewayne
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