Dryer section and method for drying a web of fibrous material, and machine having such a dryer section
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United States of America Patent
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Dec 26, 2017
Grant Date -
Sep 3, 2015
app pub date -
Sep 27, 2013
filing date -
Sep 28, 2012
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Abstract
A dryer section for drying a web of fibrous material is provided, which has at least one drying unit for reducing the moisture content of the web by means of convection drying. The drying unit has at least one nozzle for applying a drying fluid to the web, at least one discharge device for the moist air produced during convection drying, and transport means for moving the web relative to the drying unit. The drying unit has at least one ultrasonic generator, which is arranged, for excitating vibrations in the drying fluid, in the region of the nozzle in such a manner that the reduction of the moisture content by ultrasound can be supported over the entire width of the web.
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