EP0859081A3 - Press apparatus to dewater or glaze a fiber web - Google Patents

Press apparatus to dewater or glaze a fiber web Download PDF

Info

Publication number
EP0859081A3
EP0859081A3 EP98101107A EP98101107A EP0859081A3 EP 0859081 A3 EP0859081 A3 EP 0859081A3 EP 98101107 A EP98101107 A EP 98101107A EP 98101107 A EP98101107 A EP 98101107A EP 0859081 A3 EP0859081 A3 EP 0859081A3
Authority
EP
European Patent Office
Prior art keywords
press
fibrous web
dewater
glaze
fiber web
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Withdrawn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
EP98101107A
Other languages
German (de)
French (fr)
Other versions
EP0859081A2 (en
Inventor
Rudolf Hasenfuss
Joachim Dr. Grabscheid
Christian Schiel
Wolfgang Schuwerk
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 Sulzer Papiermaschinen 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 Sulzer Papiermaschinen GmbH, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0859081A2 publication Critical patent/EP0859081A2/en
Publication of EP0859081A3 publication Critical patent/EP0859081A3/en
Withdrawn legal-status Critical Current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
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/24—Arrangements of devices using drying processes not involving heating
    • F26B13/28—Arrangements of devices using drying processes not involving heating for applying pressure; for brushing; for wiping

Abstract

Es wird eine Preßvorrichtung zum Entwässern und/oder Glätten bzw. Beeinflussen der Oberflächeneigenschaft und Blattstruktur einer Faserstoffbahn mit einem Flächengewicht von unter 100 g/m2, insbesondere von graphischen Papieren, mit einem aus mindestens einem Preßnip bestehenden Preßbereich, durch den die Faserstoffbahn im Betrieb mit einer Geschwindigkeit von mindestens 1200 m/min unter gleichzeitiger Beaufschlagung mit Druck hindurchgeführt wird, beschrieben. Der Preßbereich umfaßt zumindest zwei aufeinanderfolgende Preßzonen. Dabei beträgt eine durch das Produkt aus der Länge L1 der ersten Preßzone in Laufrichtung der Faserstoffbahn und den im gesamten Preßbereich auf die Faserstoffbahn wirkenden Gesamtpreßimpuls Iges gebildete charakteristische Kenngröße K mindesten 2,5 kPa·s·m.

Figure 00000001
It becomes a press device for dewatering and / or smoothing or influencing the surface property and sheet structure of a fibrous web with a basis weight of less than 100 g / m 2 , in particular of graphic papers, with a press area consisting of at least one press nip, through which the fibrous web during operation is carried out at a speed of at least 1200 m / min with simultaneous application of pressure. The press area comprises at least two successive press zones. A characteristic parameter K formed by the product of the length L 1 of the first pressing zone in the running direction of the fibrous web and the total pressing pulse I total acting on the fibrous web in the entire pressing region is at least 2.5 kPa · s · m.
Figure 00000001
EP98101107A 1997-02-12 1998-01-23 Press apparatus to dewater or glaze a fiber web Withdrawn EP0859081A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19705360A DE19705360A1 (en) 1997-02-12 1997-02-12 Press device for dewatering or smoothing a fibrous web
DE19705360 1997-02-12

Publications (2)

Publication Number Publication Date
EP0859081A2 EP0859081A2 (en) 1998-08-19
EP0859081A3 true EP0859081A3 (en) 1999-08-18

Family

ID=7820031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98101107A Withdrawn EP0859081A3 (en) 1997-02-12 1998-01-23 Press apparatus to dewater or glaze a fiber web

Country Status (4)

Country Link
US (1) US6197157B1 (en)
EP (1) EP0859081A3 (en)
JP (1) JPH10227562A (en)
DE (1) DE19705360A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19650396A1 (en) * 1996-12-05 1998-06-10 Voith Sulzer Papiermasch Gmbh Dewatering press
DE102005020220A1 (en) * 2005-04-30 2006-11-09 Voith Patent Gmbh Long nip press
DE102005020218A1 (en) * 2005-04-30 2006-11-09 Voith Patent Gmbh Long nip press
DE102005020219A1 (en) * 2005-04-30 2006-11-09 Voith Patent Gmbh Long nip press
DE102008000597A1 (en) * 2008-03-11 2009-09-17 Voith Patent Gmbh Machine for producing and / or treating a fibrous web
SE539535C2 (en) * 2013-11-07 2017-10-10 Stora Enso Oyj Process for dewatering a suspension comprising microfibrillated cellulose

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515576A1 (en) * 1984-05-25 1985-11-28 Valmet Oy, Helsinki Paper machine press section with separate pressing locations
EP0487483A1 (en) * 1990-11-23 1992-05-27 Valmet Paper Machinery Inc. Method and device for dewatering of a paper web by pressing
EP0549553A1 (en) * 1991-12-23 1993-06-30 Valmet Corporation Press section of a paper machine, in particular for printing paper qualities

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5389205A (en) 1990-11-23 1995-02-14 Valmet Paper Machinery, Inc. Method for dewatering of a paper web by pressing using an extended nip shoe pre-press zone on the forming wire
US5167768A (en) * 1991-11-07 1992-12-01 Beloit Corporation Wide nip web press and method using a press shoe with two pivots
US5639351A (en) 1991-12-23 1997-06-17 Valmet Corporation Press section of a paper machine, in particular for printing paper qualities
DE4301750C2 (en) * 1993-01-23 1996-10-10 Voith Gmbh J M Method and device for dewatering a web using presses
FI112391B (en) * 1993-12-08 2003-11-28 Metso Paper Inc Paper machine press section using a long nip press
US5441604A (en) * 1994-02-17 1995-08-15 Beloit Technologies, Inc. Extended nip press apparatus
DE4410129A1 (en) * 1994-03-24 1995-09-28 Kleinewefers Gmbh Press device for sheet material
FI114227B (en) * 1995-04-24 2004-09-15 Metso Paper Inc Paper machine with press section and dryer section

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3515576A1 (en) * 1984-05-25 1985-11-28 Valmet Oy, Helsinki Paper machine press section with separate pressing locations
EP0487483A1 (en) * 1990-11-23 1992-05-27 Valmet Paper Machinery Inc. Method and device for dewatering of a paper web by pressing
EP0549553A1 (en) * 1991-12-23 1993-06-30 Valmet Corporation Press section of a paper machine, in particular for printing paper qualities

Also Published As

Publication number Publication date
EP0859081A2 (en) 1998-08-19
US6197157B1 (en) 2001-03-06
DE19705360A1 (en) 1998-08-13
JPH10227562A (en) 1998-08-25

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