Method and device for exhausting gases or fumes from a metallurgical container and an electric furnace provided with said exhaust device
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United States of America Patent
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Mar 1, 1994
Issued Date -
N/A
app pub date -
Jul 28, 1993
filing date -
May 22, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The inside of the metallurgical container is connected to a fan (105) through an exhaust duct (102). An additional gas is introduced in the intake part of the fan (105) preferably through the duct (102). The additional gas introduction flow is regulated in such manner that the gas pressure in the intake part of the fan (105) is maintained at a fixed value, via an adjusting valve (108) preferably placed in an additional duct (107) connected to the exhaust duct (102). A control system (110) regulates the opening and closing of the adjusting valve (108) in such manner as to maintain the gas pressure in the intake part of the fan (105) constant.
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