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US5755238A Method and apparatus for low residence time redrying of tobacco 失效
烟草停留时间低的方法和装置

Method and apparatus for low residence time redrying of tobacco
摘要:
A method and apparatus is given for a low residence time redrying of strip tobacco. The apparatus thoroughly and evenly dries and cools the tobacco consistently through the entire tobacco bed as it passes through the dryer and cooler. The apparatus utilizes a plurality of individually controlled fluidized bed heating zones for drying the tobacco. An additional fluidized bed cooling zone is provided to cool the tobacco prior to reordering. A continuous conveyor extends through the heating zones and cooling zones. A steam tunnel is utilized to raise the moisture content of the dried tobacco to preselected moisture levels. A vibrating conveyor moves the tobacco through the steam tunnel.
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