CA2099379C - Dispositif de la section des presses d'une machine a papier servant a degager la bande de la soupape d'un rouleau de presse et methode correspondante - Google Patents

Dispositif de la section des presses d'une machine a papier servant a degager la bande de la soupape d'un rouleau de presse et methode correspondante Download PDF

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Publication number
CA2099379C
CA2099379C CA002099379A CA2099379A CA2099379C CA 2099379 C CA2099379 C CA 2099379C CA 002099379 A CA002099379 A CA 002099379A CA 2099379 A CA2099379 A CA 2099379A CA 2099379 C CA2099379 C CA 2099379C
Authority
CA
Canada
Prior art keywords
transfer
web
roll
press
suction
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.)
Expired - Fee Related
Application number
CA002099379A
Other languages
English (en)
Other versions
CA2099379A1 (fr
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
Valmet Oy
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 Oy filed Critical Valmet Oy
Publication of CA2099379A1 publication Critical patent/CA2099379A1/fr
Application granted granted Critical
Publication of CA2099379C publication Critical patent/CA2099379C/fr
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

Procédé et dispositif relatifs à la presse d'une machine à papier et servant à détacher la bande (W) de la face externe lisse (18') d'un cylindre de pression (18). Dans le procédé et le dispositif, on utilise une zone de transfert (40a, 50a) sur laquelle passe une bande de toile (23) ou une toile de transfert spéciale (44) pour exercer une tension en circuit fermé sur la bande (W). La zone de transfert (40a, 50a), ainsi que ladite toile (23, 44) constituent un pincement (NS) ou zone de transfert avec la face du cylindre (18'). Le niveau de la température (T) de la face du cylindre (18') et/ou de la toile (W) au point de transfert, est réglé afin que la pression (pS) de vapeur saturée de l'eau présente dans la bande (W) et sur la face du cylindre (18') et correspondant audit niveau de température (T) soit sensiblement aussi élevée, ou un peu plus élevée que la pression (pO) réglée pour se maintenir dans ladite zone de transfert (40a, 50a), ladite pression (pO) étant, de préférence, inférieure à la pression atmosphérique.
CA002099379A 1991-01-18 1992-01-20 Dispositif de la section des presses d'une machine a papier servant a degager la bande de la soupape d'un rouleau de presse et methode correspondante Expired - Fee Related CA2099379C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI910288A FI92941C (fi) 1991-01-18 1991-01-18 Menetelmä ja laite paperikoneen puristinosalla rainan irrottamiseksi puristintelan pinnalta
FI910288 1991-01-18
PCT/FI1992/000014 WO1992013133A1 (fr) 1991-01-18 1992-01-20 Procede et dispositif relatifs a la presse d'une machine a papier et servant a detacher la bande de la face d'un cylindre de pression

Publications (2)

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

Family

ID=8531762

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002099379A Expired - Fee Related CA2099379C (fr) 1991-01-18 1992-01-20 Dispositif de la section des presses d'une machine a papier servant a degager la bande de la soupape d'un rouleau de presse et methode correspondante

Country Status (6)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI88812C (fi) * 1992-03-05 1993-07-12 Valmet Paper Machinery Inc Anordning vid styrning av banans spetsdragningsband i en pappersmaskin
DE4322644C1 (de) * 1993-07-07 1994-09-29 Billhofer Maschf Gmbh Vorrichtung zum Auftragen wachshaltiger Dispersionen
DE4427281A1 (de) * 1994-08-02 1996-02-08 Voith Gmbh J M Verfahren zum Einfädeln einer Faserstoff-Bahn, insbesondere in eine Papierherstellungsmaschine
DE19741517A1 (de) * 1997-09-20 1999-03-25 Voith Sulzer Papiermasch Gmbh Verfahren zur Verringerung der Haftung einer feuchten Faserstoffbahn an einer rotierenden Walze
FI117981B (fi) * 2002-12-20 2007-05-15 Upm Kymmene Corp Paperikoneen tai vastaavan nippijärjestely
FI120239B (fi) 2008-06-19 2009-08-14 Metso Paper Inc Rainanmuodostuskone ja menetelmä rainanmuodostuskoneessa

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89085C (fi) * 1987-01-23 1993-08-10 Valmet Paperikoneet Oy Regleringsfoerfarande foer en pappersmaskins pressparti
FI75890C (fi) * 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 (fi) * 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
EP0567484B1 (fr) 1997-07-23
EP0567484A1 (fr) 1993-11-03
CA2099379A1 (fr) 1992-07-19
FI910288A0 (fi) 1991-01-18
FI92941C (fi) 1995-01-25
DE69221123T2 (de) 1997-11-20
FI92941B (fi) 1994-10-14
ATE155837T1 (de) 1997-08-15
WO1992013133A1 (fr) 1992-08-06
DE69221123D1 (de) 1997-08-28
FI910288A (fi) 1992-07-19

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