Apparatus for dewatering a fibrous web

Details Apparatus for dewatering a fibrous web Apparatus for dewatering a fibrous web

2006-08-03

2009-12-08

Hug, Eric (Department: 1791)

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

C162S360300, C034S116000, C034S123000

Reexamination Certificate

active

07628891

ABSTRACT:
An apparatus for treating a fibrous web, in particular a paper, board or tissue web including a press section and a drying section. The press section includes a central roll around which an at least substantially impermeable belt wraps, the fibrous web being removed from this impermeable belt and fed to the drying section. In this case, as viewed in the web running direction, the first drying group of the drying section includes at most three drying cylinders. In the exit region of the first drying cylinder of the first drying group, in which the fibrous web runs off the drying cylinder together with a permeable circulating belt or is removed from the drying cylinder by such a permeable circulating belt, a removal zone to which vacuum is applied is provided on the side of the permeable circulating belt that faces away from the fibrous web.

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