A drying section apparatus

Details A drying section apparatus A drying section apparatus

D - Textiles, Paper

21

F

D21F 5/04 (2006.01) D21F 5/14 (2006.01) D21H 23/70 (2006.01) D21H 23/56 (2006.01)

Patent

CA 2260726

A drying section apparatus is disclosed for use in drying a web of paper coated with size to decrease permeability. A single tier dryer arrangement in apparatus according to the invention includes air caps disposed above the dryer cylinders so that the first drying stage for removing water from the web prior to sizing and the second drying stage for removing water introduced by the coating in the sized web can be controlled. The single tier dryer includes a plurality of dryer cylinders and vacuum rolls disposed between adjacent dryer cylinders, with a dryer felt extending around at least one of the dryer cylinders, so that both sides of the web are dried during passage of the web through the single tier dryer. At least one of the dryer cylinders is top felted for permitting downward removal of broke. An air cap is disposed above at least one of the dryer cylinders for blowing air through the felt for drying the web disposed between the dryer cylinder and the felt.

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