EP0401190A3 - Press section of a paper or board machine - Google Patents

Press section of a paper or board machine Download PDF

Info

Publication number
EP0401190A3
EP0401190A3 EP19900850218 EP90850218A EP0401190A3 EP 0401190 A3 EP0401190 A3 EP 0401190A3 EP 19900850218 EP19900850218 EP 19900850218 EP 90850218 A EP90850218 A EP 90850218A EP 0401190 A3 EP0401190 A3 EP 0401190A3
Authority
EP
European Patent Office
Prior art keywords
roll
press
nip
centre
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
EP19900850218
Other languages
German (de)
French (fr)
Other versions
EP0401190A2 (en
EP0401190B1 (en
Inventor
Seppo Tavi
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 Paper Machinery Inc
Original Assignee
Valmet Paper Machinery Inc
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 Paper Machinery Inc filed Critical Valmet Paper Machinery Inc
Publication of EP0401190A2 publication Critical patent/EP0401190A2/en
Publication of EP0401190A3 publication Critical patent/EP0401190A3/en
Application granted granted Critical
Publication of EP0401190B1 publication Critical patent/EP0401190B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21F3/04—Arrangements thereof

Abstract

The invention concerns a press section of a paper or board machine, comprising a number of rolls (1,11,22,32,44,70) which form press nips (N₁,N₂,N₃,N₄) that dewater the web (in) with each other, the web being arranged to run through said nips. Of the rolls at least one roll (1;70) is a smooth-faced so-called centre roll, which forms a press nip (N₂,N₃;N₄) with at least one other press roll (11,32;44), over which a press felt (10,30;40), which has been formed as an endless loop, is passed to absorb water out of the web (in) into said press felt (10,30;40). The centre roll (1;70) in accordance with the invention is a variable-crown roll, which comprises a metallic roll mantle (2;71) arranged revolving on a stationary roll axle (3;72). The roll includes at least one set of crown-variation means (4,5;73), which are arranged to load the roll mantle (2;71) in the direction of the nip plane (K₂,K₃;K₄) of the centre roll (1;70) and the roll (11,32;44) that forms a press nip (N₂,N₃;N₄) with said centre roll so as to regulate the profile of linear load in said nip (N₂,N₃;N₄).
EP90850218A 1989-05-30 1990-05-29 Press section of a paper or board machine Expired - Lifetime EP0401190B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI892625A FI86753C (en) 1989-05-30 1989-05-30 Press section for a paper or cardboard machine
FI892625 1989-05-30

Publications (3)

Publication Number Publication Date
EP0401190A2 EP0401190A2 (en) 1990-12-05
EP0401190A3 true EP0401190A3 (en) 1992-01-02
EP0401190B1 EP0401190B1 (en) 1995-08-02

Family

ID=8528534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90850218A Expired - Lifetime EP0401190B1 (en) 1989-05-30 1990-05-29 Press section of a paper or board machine

Country Status (6)

Country Link
EP (1) EP0401190B1 (en)
CN (1) CN1048813A (en)
AT (1) ATE125894T1 (en)
CA (1) CA2017010C (en)
DE (1) DE69021277T2 (en)
FI (1) FI86753C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008003A1 (en) * 1990-10-31 1992-05-14 Beloit Corporation Paper web heating on a press roll
DE4140879A1 (en) * 1991-12-11 1993-06-17 Voith Gmbh J M PRESS RELEASE
FI88812C (en) * 1992-03-05 1993-07-12 Valmet Paper Machinery Inc Device for controlling the web's tip drawing tape in a paper machine
DE19654325A1 (en) * 1996-12-24 1998-06-25 Voith Sulzer Papiermasch Gmbh Press section of a paper-making machine
EP3622112A1 (en) * 2017-05-10 2020-03-18 Voith Patent GmbH Device and method for producing a fibrous web

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131625A (en) * 1961-06-30 1964-05-05 Kuesters Eduard Maschf Roll for the pressure treatment of web material, especially paper
US3477907A (en) * 1966-03-09 1969-11-11 Beloit Corp Press arrangement for papermaking machine
FR2355117A1 (en) * 1976-06-14 1978-01-13 Escher Wyss Sa PAPER MACHINE LAYER PRESS
DE3117787A1 (en) * 1981-05-06 1982-12-09 J.M. Voith Gmbh, 7920 Heidenheim Press section of a paper machine having a granite roll arranged therein
DE3808293A1 (en) * 1988-03-12 1989-09-21 Voith Gmbh J M LONG GAP PRESS ROLLER
WO1989009690A1 (en) * 1988-04-13 1989-10-19 Miller Ray R High heat flux roll and press utilizing same
GB2218122A (en) * 1988-05-05 1989-11-08 Voith Gmbh J M Extended nip press arrangement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131625A (en) * 1961-06-30 1964-05-05 Kuesters Eduard Maschf Roll for the pressure treatment of web material, especially paper
US3477907A (en) * 1966-03-09 1969-11-11 Beloit Corp Press arrangement for papermaking machine
FR2355117A1 (en) * 1976-06-14 1978-01-13 Escher Wyss Sa PAPER MACHINE LAYER PRESS
DE3117787A1 (en) * 1981-05-06 1982-12-09 J.M. Voith Gmbh, 7920 Heidenheim Press section of a paper machine having a granite roll arranged therein
DE3808293A1 (en) * 1988-03-12 1989-09-21 Voith Gmbh J M LONG GAP PRESS ROLLER
WO1989009690A1 (en) * 1988-04-13 1989-10-19 Miller Ray R High heat flux roll and press utilizing same
GB2218122A (en) * 1988-05-05 1989-11-08 Voith Gmbh J M Extended nip press arrangement

Also Published As

Publication number Publication date
CA2017010C (en) 1995-07-18
FI892625A0 (en) 1989-05-30
FI892625A (en) 1990-12-01
ATE125894T1 (en) 1995-08-15
EP0401190A2 (en) 1990-12-05
FI86753C (en) 1992-10-12
CA2017010A1 (en) 1990-11-30
CN1048813A (en) 1991-01-30
FI86753B (en) 1992-06-30
DE69021277T2 (en) 1996-01-11
EP0401190B1 (en) 1995-08-02
DE69021277D1 (en) 1995-09-07

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