Method for operating a steelmaking furnace during a steelmaking process
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United States of America Patent
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Dec 31, 2002
Grant Date -
N/A
app pub date -
Oct 11, 2001
filing date -
Oct 11, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is directed to a method for operating a steelmaking furnace including the steps of charging steelmaking materials into the steelmaking furnace, blowing oxygen into the steelmaking furnace, discontinuing the oxygen blow when the charged steelmaking materials are reduced to a liquid steel product, determining the temperature of the finished liquid steel product, blowing a nitrogen gas coolant into the steelmaking furnace to reduce the temperature of the finished liquid steel product to an aim tapping temperature, discontinuing the nitrogen gas coolant blow when the finished liquid steel product temperature is lowered to the aim tapping temperature, and tapping the finished liquid steel product at the aim tapping temperature for downstream processing.
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