Lance for discharging liquid nitrogen or liquid argon into a furnace throughout the production of molten metal
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United States of America Patent
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-
Jul 18, 1989
Issued Date -
N/A
app pub date -
Sep 30, 1987
filing date -
Jul 24, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Liquid argon or nitrogen is poured with a lance into a furnace during the production of molten metal. According to the invention, the lance comprises a double wall in which a hole is respectively located in order to vent the argon or nitrogen gas to reduce the rate of diphasic. The tip of the lance is equipped with a diffuser to improve the liquid discharge.
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