LANCE FOR BLOW-REFINEMENT IN CONVERTER

LANCE FOR BLOW-REFINEMENT IN CONVERTER

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 au...

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Hauptverfasser: TACHIBANA, RINZO, YOSHIKAWA, FUMIAKI, TAKASHIBA, NOBUYOSHI, KOJIMA, SHINJI, YAMADA, TAKAYASU
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMISTRY
METALLURGY
METALLURGY OF IRON
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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creator TACHIBANA, RINZO
YOSHIKAWA, FUMIAKI
TAKASHIBA, NOBUYOSHI
KOJIMA, SHINJI
YAMADA, TAKAYASU
description 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.
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subjects CHEMISTRY
METALLURGY
METALLURGY OF IRON
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
title LANCE FOR BLOW-REFINEMENT IN CONVERTER
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