Press section of a paper machine

Details Press section of a paper machine Press section of a paper machine

D - Textiles, Paper

21

F

92/21.4

D21F 3/04 (2006.01)

Patent

CA 1042697

ABSTRACT OF THE DISCLOSURE: Press section of a paper machine, wherein the paper web is conducted through nips defined by press rolls in so called closed conduction so that the web is continuously supported either adherent to a felt or to the surface of a roll, beginning from the point where the web is detached from the wire and thereafter through at least three press nips of which each is dewatering the web. The first nip is formed between the pick-up roll and the first suction roll acting against the pick-up roll of which rolls each operates within a separate felt loop of its own. The second nip is most appropriately formed between a second suction press roll and a recessed surface roll of which rolls the second suction roll operates within a felt loop of its own and the recessed surface roll within the same felt loop as the first suction roll, and the third nip is formed between the second suction roll and a plain press roll acting against the second suction roll.

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