Method and Feeder for Increasing Efficiency of the Expanding and Drying Process of Organic Materials, Particularly in a Jet Drier
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United States of America Patent
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Issued Date -
Apr 9, 2009
app pub date -
Sep 12, 2008
filing date -
Sep 24, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and a feeder for increasing the efficiency of the expanding and drying process of organic plant materials, particularly in a jet dryer used for comminuted organic plant materials, particularly tobacco materials. The dryer uses a gaseous expanding and/or drying agent under an absolute working pressure in the range from 2.5 kPa to 10 MPa, such as overheated steam. During transporting the material from the feeding zone to the zone of contact with the expanding and/or drying agent, a feeder, preferably a rotary vane feeder (4) is flushed, preferably in a continuous manner. Openings are formed in the housing of the feeder, delivering the gaseous medium to the moving spaces between the vanes (3). There are additional openings leading out the gaseous medium from the moving spaces between the vanes, the additional openings being arranged respectively in the walls of the housing of the feeder.
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