SE8402403L - CLOSE PRESS PARTY IN PAPER MACHINE - Google Patents

CLOSE PRESS PARTY IN PAPER MACHINE

Info

Publication number
SE8402403L
SE8402403L SE8402403A SE8402403A SE8402403L SE 8402403 L SE8402403 L SE 8402403L SE 8402403 A SE8402403 A SE 8402403A SE 8402403 A SE8402403 A SE 8402403A SE 8402403 L SE8402403 L SE 8402403L
Authority
SE
Sweden
Prior art keywords
nip
web
roll
dewatering
fabric
Prior art date
Application number
SE8402403A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8402403D0 (en
SE461918B (en
Inventor
E Koski
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 SE8402403D0 publication Critical patent/SE8402403D0/en
Publication of SE8402403L publication Critical patent/SE8402403L/en
Publication of SE461918B publication Critical patent/SE461918B/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

Abstract

13 An improvement in a press section for a paper machine which includes at least four successive nips between which the web runs as a closed draw supported on a fabric or roll face. A first fabric functions as a pick-up felt and to carry the web into the first dewatering press nip formed between a first pair of press rolls. A second fabric carries the web from the first nip into the second nip whereupon the web is detached from the second fabric to follow along with an upper roll of the second nip into the third nip formed between the upper roll of the second nip and a smooth-faced roll. A fourth nip is formed between the smooth-faced roll and a dewatering press roll. Dewatering takes place through both faces of the web in the first nip, through only one face of the web in the second nip and in the fourth nip through the other face of the web in a direction opposite from the dewatering direction in the second nip. The third nip is a substantially non-dewatering smoothing and transfer nip. According to the invention, a belt felt runs over a sector of the upper roll of the second nip between and through the second and third nips. The belt felt is substantially water non-receiving and has a smooth-faced outer surface. The web adheres to the belt felt after detachment from the second fabric and is carried into the third nip while supported on the belt felt. After passing through the third nip, the web is detached from the belt felt at least in part due to its surface properties and adheres to the smooth-faced press roll on which it is carried into the next dewatering nip.
SE8402403A 1983-05-06 1984-05-04 CLOSE PRESS PARTY IN PAPER MACHINE SE461918B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI831577A FI71370C (en) 1983-05-06 1983-05-06 SLUTET PRESSPARTI I PAPPERSMASKIN

Publications (3)

Publication Number Publication Date
SE8402403D0 SE8402403D0 (en) 1984-05-04
SE8402403L true SE8402403L (en) 1984-11-07
SE461918B SE461918B (en) 1990-04-09

Family

ID=8517162

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8402403A SE461918B (en) 1983-05-06 1984-05-04 CLOSE PRESS PARTY IN PAPER MACHINE

Country Status (4)

Country Link
CA (1) CA1232162A (en)
DE (1) DE3415457A1 (en)
FI (1) FI71370C (en)
SE (1) SE461918B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321406A1 (en) * 1993-06-26 1993-11-11 Voith Gmbh J M Paper-making press section - has belt round first two rollers working with press rollers and shoe press for high water extraction and no difference between paper sides
DE19543111C2 (en) * 1995-11-18 2001-01-25 Voith Sulzer Papiermasch Gmbh Press section of a paper machine with closed web guidance and method for dewatering a paper web
DE10251666A1 (en) * 2002-11-06 2004-06-03 Voith Paper Patent Gmbh Press arrangement
DE10342733A1 (en) * 2003-09-16 2005-04-21 Voith Paper Patent Gmbh Press section to extract water from a wet web, of paper or cardboard or tissue, has an impermeable transfer belt around the first press roller to pass the web on to the next station without web damage
AT504090B1 (en) * 2006-09-13 2008-09-15 Andberg Janne Johannes INTERMEDIATE TILTING ARRANGEMENT OF A DRAINAGE DEVICE WITH A TISSUE-CONVERSED OVERRIDE OVER ROLLER

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI751754A (en) * 1975-06-12 1976-12-13 Valmet Oy
FI770542A (en) * 1977-02-18 1978-08-19 Valkama P J PRESS RELEASE FOR THE CONSTRUCTION OF VAT ON FIBER BAN
DE2751245A1 (en) * 1977-11-16 1979-06-21 Valmet Oy paper making pressing section exploiting viscosity of heated water - feeds steam and ensures heat retention by web and felt
FI79731C (en) * 1980-12-18 1990-02-12 Beloit Corp Press section of a paper machine
FI822425L (en) * 1982-07-07 1984-01-08 Valmet Oy PROCEDURE FOR THE PRESS RELEASE OF THE PRESS RELEASE OF THE FIBER, THE SYNNER AND THE PAPER-ELLER

Also Published As

Publication number Publication date
SE8402403D0 (en) 1984-05-04
SE461918B (en) 1990-04-09
FI71370C (en) 1986-12-19
CA1232162A (en) 1988-02-02
DE3415457A1 (en) 1984-11-15
FI831577A0 (en) 1983-05-06
FI71370B (en) 1986-09-09
FI831577L (en) 1984-11-07

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