Pneumatic injection of powder or granule through submerged tuyeres
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United States of America Patent
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Jul 26, 1994
Grant Date -
N/A
app pub date -
Jun 15, 1993
filing date -
Jul 13, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of injecting powdered material into converters or other metallurgical vessels equipped with at least one submerged tuyere and a gas flow line interconnecting the tuyere to a bustle pipe or other source for blowing converting gas into the tuyere comprises providing an injection pipe fitted into the tuyere at an acute angle, preferably about 20.degree. C., with respect to the centre line of the tuyere and intersecting the tuyere at a point downstream of the gas line flow line entrance, and introducing fluidized powdered material into the tuyere through such injection pipe.
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