METHOD OF INCREASING THE EFFICIENCY OF A DRIER, PARTICULARLY A STREAM DRIER
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United States of America Patent
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Issued Date -
Dec 4, 2008
app pub date -
May 21, 2008
filing date -
May 30, 2007
priority date (Note) -
Abandoned
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Abstract
A method of increasing the efficiency of a drier, particularly a stream drier for loose and flammable materials, particularly cut tobacco, working with a gaseous drying agent under a working pressure from 5 kpa to 10 MPa, measured as an absolute pressure, preferably the drying agent being superheated steam. A pressurized process gas, preferably waste steam, particularly coming from the interior of the drier, is passed through a dosing-separating valve, preferably a rotary vane feeder (1') mounted behind the stream drier (2), particularly through its movable section with the dried material being emptied therefrom, the steam being returned from a release valve (10) for reusing it in the process of diluting the air, the steam being regarded as a technology waste product.
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