Metallurgical apparatus – Means for introducing fluent into vessel – e.g. – tuyere – With flow control means or internal flow guide
Patent
1986-08-18
1988-05-24
Rutledge, L. Dewayne
Metallurgical apparatus
Means for introducing fluent into vessel, e.g., tuyere
With flow control means or internal flow guide
266225, C21C 532
Patent
active
047461039
ABSTRACT:
A lance for blow-refinement in a converter comprises a primary nozzle generating a high-velocity, high-pressure primary oxygen jet, and an auxiliary nozzle generating an auxiliary oxygen jet. The auxiliary oxygen jet formed by the auxiliary nozzle has a velocity lower than the speed of sound. The auxiliary nozzle is configured so as to impede but not prevent oxygen flow therethrough. In the preferred construction, deceleration of gas-metal reaction induced by the oxygen jet.
REFERENCES:
patent: 3745943 (1973-07-01), Nothstein
Kojima Shinji
Tachibana Rinzo
Takashiba Nobuyoshi
Yamada Takayasu
Yoshikawa Fumiaki
Kawasaki Steel Corporation
McDowell Robert L.
Miller Austin R.
Rutledge L. Dewayne
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