CA2099379A1 - Method and device in the press section of a paper machine for detaching the web from the face of a press roll - Google Patents

Method and device in the press section of a paper machine for detaching the web from the face of a press roll

Info

Publication number
CA2099379A1
CA2099379A1 CA2099379A CA2099379A CA2099379A1 CA 2099379 A1 CA2099379 A1 CA 2099379A1 CA 2099379 A CA2099379 A CA 2099379A CA 2099379 A CA2099379 A CA 2099379A CA 2099379 A1 CA2099379 A1 CA 2099379A1
Authority
CA
Canada
Prior art keywords
web
face
press
transfer
roll
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
CA2099379A
Other languages
French (fr)
Other versions
CA2099379C (en
Inventor
Juhani Niskanen
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 CA2099379A1 publication Critical patent/CA2099379A1/en
Application granted granted Critical
Publication of CA2099379C publication Critical patent/CA2099379C/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
    • D21F3/0281—Wet presses in combination with a dryer roll
    • 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)
  • Replacement Of Web Rolls (AREA)

Abstract

Method and device in the press section of a paper machine for detaching the web (W) from a smooth mantle face (18') of a press roll (18). In the method and in the device, a transfer zone (40a; 50a) is employed, over which a press fabric (23) or a particular transfer fabric (44) is passed so as to accomplish a closed draw of the web (W). The transfer zone (40a, 50a) as well as said fabric (23; 44) form a transfer nip (N s) or a transfer zone with the roll face (18'), At the transfer point, the temperature level (T) of the roll face (18') and/or of the web (W) is set or regulated so high that the pressure (p s) of saturated vapour of the water present in connection with the web (W) and with the roll face (18') which corresponds to said temperature level (T) is substantially equally high as, or just little higher than, the pressure (p o) that has been set to prevail in said transfer zone (40a, 50a), said pressure (p o) being preferably lower than the atmospheric pressure.
CA002099379A 1991-01-18 1992-01-20 Method and device in the press section of a paper machine for detaching the web from the face of a press roll Expired - Fee Related CA2099379C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI910288A FI92941C (en) 1991-01-18 1991-01-18 Method and apparatus in the press portion of a paper machine for detaching the web from the surface of a press roll
FI910288 1991-01-18
PCT/FI1992/000014 WO1992013133A1 (en) 1991-01-18 1992-01-20 Method and device in the press section of a paper machine for detaching the web from the face of a press roll

Publications (2)

Publication Number Publication Date
CA2099379A1 true CA2099379A1 (en) 1992-07-19
CA2099379C CA2099379C (en) 2000-04-25

Family

ID=8531762

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002099379A Expired - Fee Related CA2099379C (en) 1991-01-18 1992-01-20 Method and device in the press section of a paper machine for detaching the web from the face of a press roll

Country Status (6)

Country Link
EP (1) EP0567484B1 (en)
AT (1) ATE155837T1 (en)
CA (1) CA2099379C (en)
DE (1) DE69221123T2 (en)
FI (1) FI92941C (en)
WO (1) WO1992013133A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE4322644C1 (en) * 1993-07-07 1994-09-29 Billhofer Maschf Gmbh Device for applying dispersions containing wax
DE4427281A1 (en) * 1994-08-02 1996-02-08 Voith Gmbh J M Threading up fibrous material lines esp. paper making machines
DE19741517A1 (en) * 1997-09-20 1999-03-25 Voith Sulzer Papiermasch Gmbh Process for reducing the adhesion of a moist fibrous web to a rotating roller
FI117981B (en) * 2002-12-20 2007-05-15 Upm Kymmene Corp Pinching arrangement for a paper machine or the like
FI120239B (en) 2008-06-19 2009-08-14 Metso Paper Inc A web forming machine and a method in a web forming machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89085C (en) * 1987-01-23 1993-08-10 Valmet Paperikoneet Oy Regulating procedure for a paper machine press section
FI75890C (en) * 1987-01-23 1988-08-08 Valmet Paperikoneet Oy FOERFARANDE OCH ANORDNING I PRESSPARTIET I EN PAPPERSMASKIN FOER LOESGOERING AV BANAN FRAON YTAN AV EN PRESSVALS.
FI83895C (en) * 1988-04-13 1991-09-10 Valmet Paper Machinery Inc FOERFARANDE OCH ANORDNING VID PRESSBEHANDLING AV EN PAPPERSBANA.

Also Published As

Publication number Publication date
FI92941C (en) 1995-01-25
FI92941B (en) 1994-10-14
EP0567484B1 (en) 1997-07-23
FI910288L (en) 1992-07-19
ATE155837T1 (en) 1997-08-15
CA2099379C (en) 2000-04-25
WO1992013133A1 (en) 1992-08-06
EP0567484A1 (en) 1993-11-03
FI910288A0 (en) 1991-01-18
DE69221123D1 (en) 1997-08-28
DE69221123T2 (en) 1997-11-20

Similar Documents

Publication Publication Date Title
CA2055927A1 (en) Method and device for dewatering of a paper web by pressing
CA2085778A1 (en) Compact press section with closed draw of the web in a paper machine
EP0639668A3 (en) Drying section.
EP0620313A3 (en) Drying method and drying module, as well as dryer sections that make use of same, in particular for a high-speed paper machine.
CA2233608A1 (en) Method and device for removal of water out of a paper or board web by pressing
CA2243597A1 (en) Belt, method and apparatus for dewatering web in press nip
FI920833A0 (en) PRESSDEL AV EN PAPPERSMASKIN.
CA2087212A1 (en) Transfer Belt
BR9607865A (en) Dehydration process of a sheet of cellulosic material by hot air traversing under high vacuum device for implementing the process and product obtained
KR960037958A (en) Press unit of paper machine provided with two individual press nips
EP0426607A3 (en) A transfer apparatus
CA2097847A1 (en) Method and device for intensifying the operation of a yankee press in a soft-tissue paper machine
EP0727521A3 (en) Apparatus for drying a fibre web, and a drying section of a paper machine
CA2057029A1 (en) Heated extended nip press apparatus
FI98229B (en) Drying lot for a paper machine
CA2099379A1 (en) Method and device in the press section of a paper machine for detaching the web from the face of a press roll
ES8602174A1 (en) Method of creping a paper web
CA2054250A1 (en) Reel-up and method for regulation of the nip pressure in a reel-up
CA2043827A1 (en) Method and device in a paper machine press section provided with a separate press
CA2211387A1 (en) Method and apparatus for cleaning of fabrics, particularly fabrics of a paper machine
DE69309246D1 (en) Press shoe in an extended nip press
ATE151132T1 (en) WET PRESS FOR A PAPER MACHINE
CA2211171A1 (en) Papermaking dryer with multi-roll vacuum chamber
CA2026841A1 (en) Transfer apparatus for transferring a tail of a web
SE8600033D0 (en) PROCEDURE, DEVICE AND BRAKE COMPONENT FOR EQUALIZING THE PRESSURE PRESSURE IN A PRESSURE PRESSURE IN A PAPER MACHINE

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed