EP0780513B1 - Procédé pour fabrication d'une bande - Google Patents

Procédé pour fabrication d'une bande Download PDF

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Publication number
EP0780513B1
EP0780513B1 EP96117462A EP96117462A EP0780513B1 EP 0780513 B1 EP0780513 B1 EP 0780513B1 EP 96117462 A EP96117462 A EP 96117462A EP 96117462 A EP96117462 A EP 96117462A EP 0780513 B1 EP0780513 B1 EP 0780513B1
Authority
EP
European Patent Office
Prior art keywords
web
units
drying
iws
way
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 - Lifetime
Application number
EP96117462A
Other languages
German (de)
English (en)
Other versions
EP0780513A2 (fr
EP0780513A3 (fr
Inventor
Hans-Peter Sollinger
Markus Oechsle
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
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 Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0780513A2 publication Critical patent/EP0780513A2/fr
Publication of EP0780513A3 publication Critical patent/EP0780513A3/fr
Application granted granted Critical
Publication of EP0780513B1 publication Critical patent/EP0780513B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/02—Mechanical driving arrangements

Definitions

  • the invention relates to a method for producing a fibrous web, e.g. Paper web, especially in a paper making machine.
  • the starting point of the invention is a known method or a known device according to DE 42 18 595 A1; in particular reference is made to FIG. 3. It gets a wet one Paper web - for the further removal of water - by at least led a press nip of a press section, from where they in a dryer section arrives.
  • the dryer section includes - at least in its initial area - some from the train one after the other passed dry felted groups above.
  • the said Figure 3 shows, without being explained in more detail, that the Number of cylinders increases from dryer group to dryer group.
  • the invention has for its object the above known paper manufacturing processes accordingly the requirements of different types of paper continue to develop that the above requirements as best possible can be fulfilled.
  • the invention is based on the knowledge that it is optimal Treatment of a still wet web in the press section and in the first dryer groups of the dryer section to take into account the so-called initial wet strength (INF).
  • INF initial wet strength
  • the INF is a value for the strength of the still wet paper web. Among other things, this depends on the amount of Ash content (filler content). The higher the ash content the lower the wet strength, the more difficult So the handling of a still wet paper web is in the Papermaking machine.
  • the number of cylinders in the dryer group can be advantageous to dry group (as known per se) preferably around to raise a drying cylinder.
  • the dryer section is dependent of the dry matter with an initial wet strength (INF) of less than 60 - 65 kN / m 3 short dry groups, at an INF of less than 75 - 85 kN / m 2 short drying groups and also only has a short drying group at the beginning.
  • INF initial wet strength
  • the main sections of the paper machine are a headbox S, a twin wire former F, a press section P and a dryer section T.
  • the units essential for the process according to the invention are at least one long nip press (in the present example two long gap presses 11, 12 are provided) and in the initial area the dryer section two or three relatively short Drying groups 21, 22, 23.
  • each of them can subsequent drying groups 24, 25 a relatively large number of cylinders (e.g. five to eight cylinders). there can refer to some felted single felt dry groups 21 - 24 connect one or preferably two two-felt dryer groups 25.
  • the first dryer group has 21 two cylinders and the second dryer group 22 three Cylinder. It is indicated schematically that every press and every Dryer group 21 - 25 in a known manner their own drive having.
  • the drives are connected to a line system Speed controller 30 connected. With their Aid can be provided in a known manner between successive ones Set aggregates any speed differences.
  • these speed differences to relatively small values are adjustable so that the still wet web at each separation point carefully by a small amount in the direction of web travel is excited.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Claims (3)

  1. Procédé de fabrication d'une bande de matériau fibreux, en particulier d'une bande de papier dans une machine de fabrication de papier, dans lequel on guide (21-25) la bande formée à partir d'une suspension de matériau fibreux, mais encore humide - pour effectuer une extraction supplémentaire d'eau - à travers plusieurs groupes qui peuvent être entraínés individuellement sous la forme d'une section de presses (P) et de plusieurs groupes sécheurs, l'entraínement des groupes successifs étant réglé sur des différences de vitesses insignifiantes de sorte que la bande encore humide ou humectée soit tendue dans la direction du mouvement de la bande à chaque passage d'un groupe au groupe suivant, caractérisé en ce qu'on rend le nombre des groupes, qui peuvent être entraínés individuellement et sont nécessaires à l'obtention d'une siccité moyenne dans la bande, tributaire de ladite résistance initiale à l'état humide (INF) si bien que l'on prévoit, à une INF plus faible, un plus grand nombre de groupes qui peuvent être entraínés individuellement, qu'à une INF plus élevée.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on guide la bande encore humide depuis chacun des groupes au groupe suivant sensiblement sans traction libre sur la bande, c'est-à-dire que la bande est guidée en permanence, donc même lors du passage d'un groupe au groupe suivant, au moyen d'une surface en mouvement telle qu'une enveloppe de rouleau, une enveloppe de cylindre, un feutre ou une toile.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on guide la bande, directement après une section de presses (P), à travers une section de sécheurs (T) - au moins à travers sa partie initiale - de sorte que seule la partie inférieure de la bande vienne en contact avec les cylindres sécheurs.
EP96117462A 1995-12-22 1996-10-31 Procédé pour fabrication d'une bande Expired - Lifetime EP0780513B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19548294A DE19548294C1 (de) 1995-12-22 1995-12-22 Verfahren zum Herstellen einer Papierbahn in einer Papierherstellungsmaschine
DE19548294 1995-12-22

Publications (3)

Publication Number Publication Date
EP0780513A2 EP0780513A2 (fr) 1997-06-25
EP0780513A3 EP0780513A3 (fr) 1998-05-13
EP0780513B1 true EP0780513B1 (fr) 2002-01-16

Family

ID=7781121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117462A Expired - Lifetime EP0780513B1 (fr) 1995-12-22 1996-10-31 Procédé pour fabrication d'une bande

Country Status (3)

Country Link
US (1) US6024836A (fr)
EP (1) EP0780513B1 (fr)
DE (2) DE19548294C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012175392A1 (fr) 2011-06-21 2012-12-27 Basf Se Procédé de fabrication de papier, de papier-carton et de carton compact
US8753479B2 (en) 2011-06-21 2014-06-17 Basf Se Production of paper, card and board
US9051687B2 (en) 2012-08-22 2015-06-09 Basf Se Production of paper, card and board

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI104100B1 (fi) * 1998-06-10 1999-11-15 Valmet Corp Integroitu paperikone
DE19848630A1 (de) * 1998-10-22 2000-04-27 Voith Sulzer Papiertech Patent Trocknungsvorrichtung
DE19934777A1 (de) * 1999-07-23 2001-01-25 Voith Paper Patent Gmbh Trockenpartie
FI121081B (fi) * 2002-01-08 2010-06-30 Metso Paper Automation Oy Menetelmä ja laitteisto paperikoneen tai paperirainan jälkikäsittelylaitteen yhteydessä
JP3691031B2 (ja) * 2002-07-19 2005-08-31 三菱重工業株式会社 抄紙機の制御方法
WO2009156274A1 (fr) 2008-06-24 2009-12-30 Basf Se Production de papier
FI122145B (fi) * 2009-12-31 2011-09-15 Upm Kymmene Corp Menetelmä ja järjestelmä kuitupitoisen tuotteen valmistamiseksi
ES2948357T3 (es) 2015-08-06 2023-09-11 Solenis Technologies Cayman Lp Procedimiento para la fabricación de papel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2091805A (en) * 1934-10-06 1937-08-31 Harry A Chuse Paper making method and machine
GB993603A (en) * 1962-11-15 1965-06-02 Billeruds Ab Method of producing extensible paper
US3257734A (en) * 1965-09-29 1966-06-28 Cons Paper Bahamas Ltd Method for controlling tension in supported sheet material
US4359828A (en) * 1979-11-05 1982-11-23 Weyerhaeuser Company Vacuum box for use in high speed papermaking
US5542193A (en) * 1992-04-24 1996-08-06 Beloit Technologies, Inc. Dryer group for curl control
DE4218595C2 (de) * 1992-06-05 2001-04-19 Voith Paper Patent Gmbh Maschine zur Herstellung einer Papierbahn
US5638611A (en) * 1995-10-18 1997-06-17 Voith Sulzer Papiermaschinen Gmbh Single-tier drying section tailored for compensating stretching and shrinking of paper web

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012175392A1 (fr) 2011-06-21 2012-12-27 Basf Se Procédé de fabrication de papier, de papier-carton et de carton compact
US8753479B2 (en) 2011-06-21 2014-06-17 Basf Se Production of paper, card and board
US9051687B2 (en) 2012-08-22 2015-06-09 Basf Se Production of paper, card and board
US9765483B2 (en) 2012-08-22 2017-09-19 Basf Se Production of paper, card and board

Also Published As

Publication number Publication date
EP0780513A2 (fr) 1997-06-25
US6024836A (en) 2000-02-15
EP0780513A3 (fr) 1998-05-13
DE59608595D1 (de) 2002-02-21
DE19548294C1 (de) 1997-04-03

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