FI981089A0 - Press section in a paper machine, in which press section one or more press nips is applied - Google Patents

Press section in a paper machine, in which press section one or more press nips is applied

Info

Publication number
FI981089A0
FI981089A0 FI981089A FI981089A FI981089A0 FI 981089 A0 FI981089 A0 FI 981089A0 FI 981089 A FI981089 A FI 981089A FI 981089 A FI981089 A FI 981089A FI 981089 A0 FI981089 A0 FI 981089A0
Authority
FI
Finland
Prior art keywords
press
nip
zone
section
extended
Prior art date
Application number
FI981089A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI981089A (en
FI111859B (en
Inventor
Seppo Tavi
Petter Honkalampi
Original Assignee
Valmet Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Corp filed Critical Valmet Corp
Priority to FI981089A priority Critical patent/FI111859B/en
Publication of FI981089A0 publication Critical patent/FI981089A0/en
Priority to CA002333280A priority patent/CA2333280A1/en
Priority to PCT/FI1999/000394 priority patent/WO1999060202A1/en
Priority to EP99923626A priority patent/EP1105563B1/en
Priority to AT99923626T priority patent/ATE262074T1/en
Priority to DE69915645T priority patent/DE69915645T2/en
Publication of FI981089A publication Critical patent/FI981089A/en
Application granted granted Critical
Publication of FI111859B publication Critical patent/FI111859B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/04—Arrangements thereof

Landscapes

  • Paper (AREA)

Abstract

A press section in a paper machine, which press section comprises at least two separate press nips (NP1, NP2; N1, N2, N10, N20, N30, NP10, NP11, NP20, NP21, NP30). The paper web (W) is passed through these nips as a closed draw. In the press section there is at least one press nip provided with two press felts (31, 41; 32, 42) that receive water, through which press nip the paper web (W) runs between said press felts (31, 41; 32, 42). After the last-mentioned nip the paper web (W) is separated from one of the press felts (31/41; 32/42) and transferred on support of the other press felt (41/31; 42/32) as a closed draw further. The last nip is an extended-nip zone (NP2; NP10; NP20, NP21, NP30), in which one roll is a shoe roll (12) provided with a hose mantle (14) and with a press shoe arrangement (13), and the other roll is a press suction roll (22) provided with a suction zone (23). The paper web (W) is passed through the last extended-nip zone (NP2; NP10; NP20, NP21, NP30) between two press fabrics (32, 42). Directly after the last extended-nip zone (NP2; NP10; NP20, NP21, NP30) the paper web (W) is separated from one of the press fabrics (32/42) and transferred, with the aid of the vacuum present in the suction zone (23) of the press suction roll (22), to follow the press fabric (42/32) placed at the side of the press suction roll (22) without rewetting. The web (W) is passed on the latter press fabric (32; 42) as a closed draw onto a drying wire (51) of the dryer section. Further, a modification of the press section is described in which an extended-nip zone which corresponds to the extended-nip zone mentioned above and placed as the last nip is placed as the first nip in the press section.
FI981089A 1998-05-15 1998-05-15 A press section of a paper machine where one or more long nipples are applied FI111859B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI981089A FI111859B (en) 1998-05-15 1998-05-15 A press section of a paper machine where one or more long nipples are applied
CA002333280A CA2333280A1 (en) 1998-05-15 1999-05-11 Press section in a paper machine, in which press section one or several extended nips is/are applied
PCT/FI1999/000394 WO1999060202A1 (en) 1998-05-15 1999-05-11 Press section in a paper machine, in which press section one or several extended nips is/are applied
EP99923626A EP1105563B1 (en) 1998-05-15 1999-05-11 Press section in a paper machine, in which press section one or several extended nips is/are applied
AT99923626T ATE262074T1 (en) 1998-05-15 1999-05-11 PRESS SECTION IN A PAPER MACHINE WITH ONE OR MORE LONG NIP PRESSES
DE69915645T DE69915645T2 (en) 1998-05-15 1999-05-11 PRESS PARTY IN A PAPER MACHINE WITH ONE OR MORE LONG POINT PRESSES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI981089A FI111859B (en) 1998-05-15 1998-05-15 A press section of a paper machine where one or more long nipples are applied
FI981089 1998-05-15

Publications (3)

Publication Number Publication Date
FI981089A0 true FI981089A0 (en) 1998-05-15
FI981089A FI981089A (en) 1999-11-16
FI111859B FI111859B (en) 2003-09-30

Family

ID=8551740

Family Applications (1)

Application Number Title Priority Date Filing Date
FI981089A FI111859B (en) 1998-05-15 1998-05-15 A press section of a paper machine where one or more long nipples are applied

Country Status (6)

Country Link
EP (1) EP1105563B1 (en)
AT (1) ATE262074T1 (en)
CA (1) CA2333280A1 (en)
DE (1) DE69915645T2 (en)
FI (1) FI111859B (en)
WO (1) WO1999060202A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI116401B (en) 2000-02-22 2005-11-15 Metso Paper Inc Paper or paperboard machine with forming unit and press section
FI116400B (en) 2002-11-19 2005-11-15 Metso Paper Inc Press section in a paper or cardboard machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI95610C (en) * 1994-10-06 1996-02-26 Valmet Paper Machinery Inc Press section of a paper machine equipped with a compensating press
FI98843C (en) * 1995-10-03 1997-08-25 Valmet Corp A method and apparatus for removing water from a paper or board web by compression

Also Published As

Publication number Publication date
EP1105563B1 (en) 2004-03-17
DE69915645D1 (en) 2004-04-22
DE69915645T2 (en) 2005-02-03
FI981089A (en) 1999-11-16
ATE262074T1 (en) 2004-04-15
CA2333280A1 (en) 1999-11-25
EP1105563A1 (en) 2001-06-13
WO1999060202A1 (en) 1999-11-25
FI111859B (en) 2003-09-30

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Legal Events

Date Code Title Description
MA Patent expired