CA2055927A1 - Method and device for dewatering of a paper web by pressing - Google Patents

Method and device for dewatering of a paper web by pressing

Info

Publication number
CA2055927A1
CA2055927A1 CA2055927A CA2055927A CA2055927A1 CA 2055927 A1 CA2055927 A1 CA 2055927A1 CA 2055927 A CA2055927 A CA 2055927A CA 2055927 A CA2055927 A CA 2055927A CA 2055927 A1 CA2055927 A1 CA 2055927A1
Authority
CA
Canada
Prior art keywords
nip
paper web
press
dewatering
web
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2055927A
Other languages
French (fr)
Other versions
CA2055927C (en
Inventor
Juhani Pajula
Martti Hirsimaki
Juha Kivimaa
Pekka Taskinen
Jorma Laapotti
Mikko Karvinen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2055927A1 publication Critical patent/CA2055927A1/en
Application granted granted Critical
Publication of CA2055927C publication Critical patent/CA2055927C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • 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
    • 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
    • D21F3/045—Arrangements thereof including at least one extended press nip

Landscapes

  • Paper (AREA)

Abstract

Method and device in the manufacture of paper or board for dewatering of a paper web that is being manufactured. The paper web is transferred from a forming wire onto a wire in the drying section while constantly on support of a fabric that receives water, a transfer fabric, or of any other, corresponding transfer surface as a closed draw, at a particularly high speed, which is higher than about 25-30 m/s. Dewatering of the paper web is carried out by means of at least two subsequent press nips, of which nips at least one press nip is a so-called extended-nip zone, whose length in a machine direction is larger than about 100 mm. The extended-nip zone is formed in connection with a mobile flexible press-band loop. The distribution of the compression pressure employed within said extended-nip press zone is regulated and/or selected both in the transverse direction of the web and in the machine direction so as to set or to control the different profiles of properties of the web.
CA002055927A 1990-11-23 1991-11-20 Method and device for dewatering of a paper web by pressing Expired - Fee Related CA2055927C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI905798 1990-11-23
FI905798A FI96789C (en) 1990-11-23 1990-11-23 Method and apparatus for dewatering a paper web by pressing

Publications (2)

Publication Number Publication Date
CA2055927A1 true CA2055927A1 (en) 1992-05-24
CA2055927C CA2055927C (en) 1999-02-02

Family

ID=8531454

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002055927A Expired - Fee Related CA2055927C (en) 1990-11-23 1991-11-20 Method and device for dewatering of a paper web by pressing

Country Status (5)

Country Link
EP (2) EP0770727B1 (en)
AT (2) ATE168423T1 (en)
CA (1) CA2055927C (en)
DE (2) DE69133030T2 (en)
FI (1) FI96789C (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5639351A (en) 1991-12-23 1997-06-17 Valmet Corporation Press section of a paper machine, in particular for printing paper qualities
FI98844C (en) * 1991-12-23 1997-08-25 Valmet Paper Machinery Inc Press section in paper machine, especially for printing paper grades
ATE133217T1 (en) * 1992-11-24 1996-02-15 Voith Gmbh J M PRESS SECTION FOR A PAPER MACHINE
FI93237C (en) * 1993-06-11 1995-03-10 Valmet Tampella Inc Method and apparatus in a paper or cardboard machine for dewatering the web
FI112391B (en) * 1993-12-08 2003-11-28 Metso Paper Inc Paper machine press section using a long nip press
US5868904A (en) * 1993-12-08 1999-02-09 Valmet Corporation Press section employing an extended nip press with suction counter roll
US6368466B1 (en) * 1993-12-08 2002-04-09 Valmet Corporation Press section of a paper making machine employing an extended nip press
US5876565A (en) * 1994-10-06 1999-03-02 Valmet Corporation Press section with an equalizing nip for compensating for elongation of a paper web
FI95610C (en) * 1994-10-06 1996-02-26 Valmet Paper Machinery Inc Press section of a paper machine equipped with a compensating press
FI114227B (en) * 1995-04-24 2004-09-15 Metso Paper Inc Paper machine with a press section and a drying section
DE19535343A1 (en) * 1995-09-25 1997-03-27 Voith Sulzer Papiermasch Gmbh Method and machine for producing fibrous webs
DE19609988A1 (en) * 1996-03-14 1997-09-18 Voith Sulzer Papiermasch Gmbh Press section of a paper machine
DE19702574A1 (en) 1997-01-24 1998-07-30 Voith Sulzer Papiermasch Gmbh Press arrangement
DE19705360A1 (en) 1997-02-12 1998-08-13 Voith Sulzer Papiermasch Gmbh Press device for dewatering or smoothing a fibrous web
DE19708967A1 (en) * 1997-03-05 1998-09-10 Voith Sulzer Papiermasch Gmbh Papermaking machine press section
DE19801891A1 (en) 1998-01-20 1999-07-22 Voith Sulzer Papiertech Patent Press section
DE19802054A1 (en) * 1998-01-21 1999-07-22 Voith Sulzer Papiertech Patent Press section
FI115649B (en) 1998-06-10 2005-06-15 Metso Paper Inc Procedure for making paper and a paper machine
WO2000070142A1 (en) * 1999-05-14 2000-11-23 Metso Paper, Inc. Method and machine for manufacturing printing paper or paperboard
US6730192B1 (en) 1999-05-14 2004-05-04 Metso Paper, Inc. Method and machine for manufacturing printing paper or paperboard
DE19934875A1 (en) * 1999-07-24 2001-01-25 Voith Paper Patent Gmbh Paper machine
DE19938979A1 (en) * 1999-08-19 2001-02-22 Voith Paper Patent Gmbh Press section
WO2001018308A1 (en) * 1999-09-06 2001-03-15 Metso Paper Karlstad Ab Board machine and method of manufacturing a multilayer cardboard web
EP1342839B1 (en) 2002-03-01 2006-11-22 Voith Patent GmbH Method and apparatus for measuring the hardness or compactness of a clothing
DE10233924A1 (en) * 2002-07-25 2004-02-12 Voith Paper Patent Gmbh Papermaking process automatically monitors and corrects water drainage local distribution pattern within dewatering nip zone
WO2004022845A1 (en) * 2002-09-09 2004-03-18 Metso Paper, Inc A method of making paperboard, a machine for making paperboard and a press section for dewatering a wet fibrous web
FI116400B (en) 2002-11-19 2005-11-15 Metso Paper Inc Press section in a paper or cardboard machine
DE10332906A1 (en) * 2003-07-19 2005-02-17 Voith Paper Patent Gmbh Press section to extract water from a wet web, in a machine for the production of paper/cardboard/tissue, has an extended roller press gap for the web and absorbent blankets with conditioning press rollers for the continuous blankets
DE10343215A1 (en) * 2003-09-18 2005-04-14 Voith Paper Patent Gmbh Roller with internal pressure shoe for papermaking or finishing, passes flexible roller casing between shoe and pressing component, guiding its edges against stationary end discs
JP2006257602A (en) * 2005-03-18 2006-09-28 Ichikawa Co Ltd Paper machine and paper transport belt recycling method
DE102007035548A1 (en) * 2007-07-28 2009-01-29 Voith Patent Gmbh Press arrangement
SE539535C2 (en) * 2013-11-07 2017-10-10 Stora Enso Oyj Process for dewatering a suspension comprising microfibrillated cellulose

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI81854C (en) 1982-09-15 1990-12-10 Valmet Oy PRESS SPRING WITH PRESS SHEET I EN PAPER MACHINERY.
US4483745A (en) 1982-09-29 1984-11-20 Beloit Corporation Method and apparatus of sheet transfer using a nonporous smooth surfaced belt
FI66932C (en) * 1983-01-10 1984-12-10 Valmet Oy ARRANGEMANG VID LAONGNYPSPRESS
DE3311998A1 (en) * 1983-04-02 1984-10-04 J.M. Voith Gmbh, 7920 Heidenheim Belt press unit, preferably as a wet press of a paper machine
DE3328162C2 (en) 1983-08-04 1986-02-20 J.M. Voith Gmbh, 7920 Heidenheim Paper machine
US4561939A (en) * 1984-03-26 1985-12-31 Beloit Corporation Extended nip press arrangement
FI842115A7 (en) * 1984-05-25 1985-11-26 Valmet Oy PRESSPARTI MED SEPARATA PRESSNYP I EN PAPER MASK.
FI842114A7 (en) * 1984-05-25 1985-11-26 Valmet Oy PRESSPARTI MED SEPARATA PRESSZON I EN PAPER MASK.
FI82500C (en) * 1985-02-18 1991-03-11 Valmet Oy Press section with separate press nip in a paper machine
DE3865618D1 (en) * 1987-04-14 1991-11-21 Voith Gmbh J M MACHINE FOR MANUFACTURING FIBROUS MATERIALS.
DE3742848C3 (en) * 1987-12-17 1996-06-13 Escher Wyss Gmbh Press section of a paper machine
DE3815278A1 (en) * 1988-05-05 1989-11-16 Voith Gmbh J M PRESS RELEASE OF A MACHINE FOR THE PRODUCTION OF A FIBROUS MATERIAL SHEET, IN PARTICULAR PAPER SHEET
SE461171C (en) * 1988-05-25 1992-08-17 Valmet Paper Machinery Inc LONG NYP PRESSES BEFORE PAPER OR CARTON MACHINERY
SE461154B (en) * 1988-05-25 1990-01-15 Valmet Paper Machinery Inc LONG NYP PRESSES BEFORE PAPER OR CARTON MACHINERY
FI82092C (en) * 1989-03-22 1991-01-10 Valmet Paper Machinery Inc long nip press
AU6274690A (en) * 1989-11-27 1991-06-26 Beloit Corporation A press section apparatus

Also Published As

Publication number Publication date
ATE168423T1 (en) 1998-08-15
FI905798A0 (en) 1990-11-23
CA2055927C (en) 1999-02-02
DE69129788D1 (en) 1998-08-20
DE69133030T2 (en) 2002-11-21
FI905798A7 (en) 1992-05-24
FI96789B (en) 1996-05-15
EP0770727B1 (en) 2002-06-05
EP0487483B1 (en) 1998-07-15
EP0487483A1 (en) 1992-05-27
ATE218648T1 (en) 2002-06-15
FI96789C (en) 1996-08-26
EP0770727A1 (en) 1997-05-02
DE69133030D1 (en) 2002-07-11
DE69129788T2 (en) 1998-11-19

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed