DEVICE AND PROCESS FOR DRYING MOVING WEBS OF MATERIAL
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United States of America Patent
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Issued Date -
Feb 17, 2011
app pub date -
Mar 13, 2009
filing date -
Mar 26, 2008
priority date (Note) -
Abandoned
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Abstract
A drying device for moving webs of material has at least two serial drying groups each having a plurality of heatable drying cylinders. The drying cylinders of at least one first drying group are steam-heated in a first heat circuit. The drying cylinders of at least one second drying group have supply piping for a combustible energy source and discharge piping for waste heat originating from the combustion. A first heat exchanger is provided that couples the first heat circuit for the steam-heated drying cylinders to the discharge piping for the waste heat from the drying cylinders of the second drying group.
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