EP1026314A2 - Dispositif de pressage - Google Patents

Dispositif de pressage Download PDF

Info

Publication number
EP1026314A2
EP1026314A2 EP99123888A EP99123888A EP1026314A2 EP 1026314 A2 EP1026314 A2 EP 1026314A2 EP 99123888 A EP99123888 A EP 99123888A EP 99123888 A EP99123888 A EP 99123888A EP 1026314 A2 EP1026314 A2 EP 1026314A2
Authority
EP
European Patent Office
Prior art keywords
press
roller
web
arrangement according
shoe
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.)
Withdrawn
Application number
EP99123888A
Other languages
German (de)
English (en)
Other versions
EP1026314A3 (fr
Inventor
Andreas Meschenmoser
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
Voith Sulzer Papiertechnik 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, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1026314A2 publication Critical patent/EP1026314A2/fr
Publication of EP1026314A3 publication Critical patent/EP1026314A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • 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
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • 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

Definitions

  • the invention relates to a press arrangement for treating a fibrous web, especially paper or cardboard web.
  • the aim of the invention is a press arrangement of the aforementioned Art to create, their structure as simple and compact and their Vacuum requirements and their drive power is as low as possible.
  • a closed web guide should also be possible.
  • the two shoe press rolls are preferably approximately opposite one another Arranged sides of the central press roll.
  • both elongated press nips are double each felted. This results in an overall volume-saving and symmetrical drainage.
  • papermaking in particular also improves the equality of the paper, so that the press assembly can also be used in particular for graphic papers.
  • a maximum of three felts are provided for the press arrangement.
  • a felt can be passed through both elongated press nips.
  • Corresponding only three felt conditionings are required, making the Friction power and the required vacuum can be reduced accordingly.
  • To Every nip is provided with good nip drainage, which among other things for example can be achieved by a respective centrifugal water drain can.
  • the fiber web can preferably be press nips together with a Felt is guided around a deflection roller, which is preferably designed as a suction roller his.
  • the fibrous web follows the second extended press nip via a preferably designed as a suction roll Deflection roller, for example, led to a subsequent dryer section is.
  • the fibrous web can pass through the second together with one extended press nip running top felt around the guide roller be and then removed from the top felt by a smooth roller become.
  • the Fibrous web together with a bottom felt from the second elongated Press nip guided and in the area of the deflecting roller through this looping dryer fabric is removed from the bottom felt.
  • the surface of the central press roll and / or the press jacket at least A shoe press roll can create a certain water storage capacity for example, be blind drilled and / or grooved.
  • a shoe press roll can create a certain water storage capacity for example, be blind drilled and / or grooved.
  • In order to the drainage of one or both extended press nips can at least partly by throwing water into a respective channel or the like. This is not just optimal drainage of the respective press nip guaranteed.
  • Lighter press felts can also be used be used.
  • the press shoes the support devices assigned to the two shoe press rolls same pressures can be applied, in which case the length of the first extended press nip is advantageously greater than the length of the second extended press nip.
  • the support device assigned to the press shoe of the first shoe press roll can be pressurized with a smaller pressure than that of the press shoe the second shoe press roller associated support device, wherein in this case the two extended press nips expediently one can have the same length.
  • the line force of the second extended press nip in particular be larger than that of the first extended nip.
  • the central press roll is an internally supported roller and each with the press nips assigned pressures is supplied.
  • the deflection roller an adjustable Drive.
  • Figure 1 shows a purely schematic, partially sectioned representation a first embodiment of a press arrangement for treating a Fibrous web 10, which is in particular a paper or Cardboard web can act.
  • the fibrous web 10 is in the area of a suction roll 12 by a Upper felt 14 taken from a wire belt 16 and then together with a bottom felt 18 extended a first in the web running direction L. Press nip S supplied. Following this, the fibrous web 10 together with the bottom felt 18 a second in the web running direction L fed press nip S2. Before the first extended Press nip S1 is the fibrous web 10 together with the upper felt 14 guided over a deflection roller 19 designed as a suction roller. The however, both rollers 12 and 19 can also be brought together.
  • the two are in the direction of web travel L extended press gaps S1 and S2 between a central one Press roll 20 and two associated shoe press rolls 22, 24 are formed.
  • the central press roll 20 serves the two shoe press rolls 22, 24 thus as a common counter roller.
  • the two shoe press rollers 22, 24 on opposite sides of the central Press roll 20 arranged.
  • the fibrous web 10 is between the two elongated formed with the central press roll 20 Press nips S1, S2 together with the bottom felt 18 around a suction roll trained deflection roller 26 out. In the area of this deflection roller 26, the upper felt 14 is again separated from the fibrous web 10.
  • both the first and the second elongated press nip S1 or S2 each felted twice.
  • a further upper felt 28 is provided, which together with the lower felt 18 and the fibrous web 10 through the second extended press nip S2 is led.
  • the fibrous web 10 is following the second extended press nip S2 together with the upper felt 28 via a deflecting roller 30, again designed as a suction roller, to the first Drying cylinder 32 guided a subsequent dryer section.
  • the bottom felt 18 is again made of the fibrous web 10 separated.
  • the drying cylinder 32 preferably has a closed top felt 28 or smooth surface. As can be seen from FIG.
  • the fibrous web is 10 following the drying cylinder 32 on a drying sieve 38 led.
  • the Deflecting roller 30 and drying cylinder 32 form a nip with respect to one another, i.e. be pressed against each other.
  • the two elongated press gaps S1, S2 are at least drained partly by centrifuging water in channels 34, 34a and 36, 36a, which can be achieved, for example, by a blind drilled and / or grooved surface of the central press roll 20 and / or a respective one blind drilled and / or grooved press jacket at least one Shoe press roll is possible.
  • Figure 2 shows a schematic, partially sectioned representation Another embodiment of a press arrangement with two common ones Mating roller 20 associated with shoe press rollers 22, 24.
  • This embodiment differs essentially from that according to FIG. 1 in that the upper felt 28 already before the suction roll trained deflection roller 30 again by a web cutting device 52 separated from the fibrous web 10 and continued on the bottom felt 18 Fibrous web 10 in the area of the suction roll 30 through this looping dryer fabric 38 removed from the bottom felt 18 becomes. Following the deflection roller 30, the fibrous web 10 through the drying wire 38 to the first drying cylinder 32 of the following one Dryer section fed.
  • this embodiment has essentially the same Structure like that according to Figure 1, but corresponding parts are the same Reference symbols are assigned.
  • Figure 3 shows a purely schematic representation of an example of a possible Control of the press arrangement according to Figure 1 or 2.
  • the press shoes 40, 42 of the two shoe press rolls 22, 24 Support devices 44, 46 are subjected to the same pressures p1, p2.
  • the support devices 44, 46 are connected to a pressure p delivering common line 48 connected.
  • the length L1 of the first extended press nip S1 is larger than the length in the present case L2 of the second extended press nip S2.
  • the line forces Lk1 and Lk2 are the same size. However, the specific maximum pressures are different. Only acts on the press roll bearings of the central press roll 20 the roll weight.
  • FIG. 4 shows a further example of a possible activation of a respective one Press arrangement.
  • the press shoe 40 the support device 44 assigned to the first shoe press roll 22 with a smaller pressure p1 applied than that of the press shoe 42 of the second Shoe press roller 24 associated support device 46.
  • the line force Lk1 is smaller than the line force in this case Lk2.

Landscapes

  • Paper (AREA)
EP99123888A 1999-02-04 1999-12-02 Dispositif de pressage Withdrawn EP1026314A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904576 1999-02-04
DE19904576A DE19904576A1 (de) 1999-02-04 1999-02-04 Pressenanordnung

Publications (2)

Publication Number Publication Date
EP1026314A2 true EP1026314A2 (fr) 2000-08-09
EP1026314A3 EP1026314A3 (fr) 2001-07-11

Family

ID=7896461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99123888A Withdrawn EP1026314A3 (fr) 1999-02-04 1999-12-02 Dispositif de pressage

Country Status (3)

Country Link
US (1) US6383340B1 (fr)
EP (1) EP1026314A3 (fr)
DE (1) DE19904576A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2022891A2 (fr) * 2007-07-28 2009-02-11 Voith Patent GmbH Agencement de presse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005012994U1 (de) * 2005-08-05 2005-11-03 Voith Paper Patent Gmbh Vorrichtung zur Entwässerung einer Faserstoffbahn

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410171A1 (de) * 1983-03-25 1984-09-27 Valmet Oy Papiermaschinenpressenpartie mit geschlossener fuehrung
DE9203395U1 (fr) * 1992-03-13 1992-05-07 J.M. Voith Gmbh, 7920 Heidenheim, De
DE19633958A1 (de) * 1996-04-03 1997-10-09 Voith Sulzer Papiermasch Gmbh Saugpreßwalze
DE19654282A1 (de) * 1996-12-24 1998-06-25 Voith Sulzer Papiermasch Gmbh Pressenpartie
DE19713645A1 (de) * 1997-04-02 1998-10-08 Voith Sulzer Papiermasch Gmbh Verfahren zum Transportieren einer Faserstoffbahn sowie Vorrichtung zur Durchführung des Verfahrens
DE19724218A1 (de) * 1997-06-09 1998-12-10 Voith Sulzer Papiermasch Gmbh Pressenpartie
US5865954A (en) * 1993-12-08 1999-02-02 Valmet Corporation Method for dewatering a web in a paper making machine employing an extended nip press
DE19802853A1 (de) * 1998-01-26 1999-07-29 Voith Sulzer Papiertech Patent Pressenanordnung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102356C1 (fr) * 1991-01-26 1992-01-23 J.M. Voith Gmbh, 7920 Heidenheim, De
FI112391B (fi) 1993-12-08 2003-11-28 Metso Paper Inc Paperikoneen puristinosa, jossa käytetään pitkänippipuristinta
CA2263860A1 (fr) 1996-08-22 1998-02-26 Voith Sulzer Papiermaschinen Gmbh Cylindre aspirant pour former et traiter une bande de materiau, notamment une bande de papier, de carton ou de textile
DE29811048U1 (de) * 1998-04-15 1998-09-17 Voith Sulzer Papiertech Patent Pressenanordnung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3410171A1 (de) * 1983-03-25 1984-09-27 Valmet Oy Papiermaschinenpressenpartie mit geschlossener fuehrung
DE9203395U1 (fr) * 1992-03-13 1992-05-07 J.M. Voith Gmbh, 7920 Heidenheim, De
US5865954A (en) * 1993-12-08 1999-02-02 Valmet Corporation Method for dewatering a web in a paper making machine employing an extended nip press
DE19633958A1 (de) * 1996-04-03 1997-10-09 Voith Sulzer Papiermasch Gmbh Saugpreßwalze
DE19654282A1 (de) * 1996-12-24 1998-06-25 Voith Sulzer Papiermasch Gmbh Pressenpartie
DE19713645A1 (de) * 1997-04-02 1998-10-08 Voith Sulzer Papiermasch Gmbh Verfahren zum Transportieren einer Faserstoffbahn sowie Vorrichtung zur Durchführung des Verfahrens
DE19724218A1 (de) * 1997-06-09 1998-12-10 Voith Sulzer Papiermasch Gmbh Pressenpartie
DE19802853A1 (de) * 1998-01-26 1999-07-29 Voith Sulzer Papiertech Patent Pressenanordnung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2022891A2 (fr) * 2007-07-28 2009-02-11 Voith Patent GmbH Agencement de presse
EP2022891A3 (fr) * 2007-07-28 2012-12-26 Voith Patent GmbH Agencement de presse

Also Published As

Publication number Publication date
EP1026314A3 (fr) 2001-07-11
US6383340B1 (en) 2002-05-07
DE19904576A1 (de) 2000-08-10

Similar Documents

Publication Publication Date Title
DE4102356C1 (fr)
DE4218595C2 (de) Maschine zur Herstellung einer Papierbahn
EP1314817A1 (fr) Procédé et machine pour fabriquer une bande fibreuse
AT4071U1 (de) Pressenpartie einer papiermaschine, insbesondere für druckpapier
DE69930386T2 (de) Formierpressenpartie in einer papiermaschine und verfahren zur überführung der bahn von dem former zu der pressenpartie
EP0848106B1 (fr) Section de pressage
EP0309530B1 (fr) Machine pour produire des bandes de materiaux fibreux
EP0950759A2 (fr) Dispositif de pressage
DE19855215A1 (de) Verfahren zum Entfernen von Wasser aus einer Papier- oder Kartonbahn mittels Preßung, und Papier- oder Kartonmaschine
EP0837181B1 (fr) Section de pressage
EP0780513B1 (fr) Procédé pour fabrication d'une bande
EP0854230B1 (fr) Press humide
DE19702575A1 (de) Maschine zur Herstellung einer Faserstoffbahn
DE2734805A1 (de) Verfahren zur herstellung von papier, karton oder sonstigem faserbahnmaterial aehnlicher art mit dehnbarkeit und/oder hohem reibungswert
EP0928843B1 (fr) Dispositif de pressage
EP1026314A2 (fr) Dispositif de pressage
EP1739228B1 (fr) Machine pour fabriquer une bande fibreuse
EP1022380A2 (fr) Dispositif de pressage
EP0950755A2 (fr) Rouleau de pressage et dispositif de pressage utilisant un tel rouleau
DE19708966A1 (de) Pressenanordnung
DE10024294A1 (de) Pressenanordnung
EP2235256A1 (fr) Dispositif de fabrication et/ou de traitement d'une bande de matière fibreuse
DE10132652A1 (de) Pressenanordnung
DE19827483A1 (de) Pressenanordnung
DE19645408B4 (de) Verfahren zur Herstellung einer Faserstoffbahn

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FI SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VOITH PAPER PATENT GMBH

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020111

AKX Designation fees paid

Free format text: DE FI SE

17Q First examination report despatched

Effective date: 20031121

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040402