Method of operating an open-hearth furnace
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United States of America Patent
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-
Aug 31, 1982
Grant Date -
N/A
app pub date -
Mar 12, 1981
filing date -
Mar 12, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Oxygen is blown into an open hearth furnace beneath the surface of the molten metal through a jacketed tuyere, each tuyere angled toward the center of the furnace. A high volume of jacketing coolant is injected through two separate annular passageways around the oxygen to form a large skull around the tuyere. Apparatus is also disclosed for carrying out the process.
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