EP0852273A2 - Presse de déshydratation - Google Patents

Presse de déshydratation Download PDF

Info

Publication number
EP0852273A2
EP0852273A2 EP97119207A EP97119207A EP0852273A2 EP 0852273 A2 EP0852273 A2 EP 0852273A2 EP 97119207 A EP97119207 A EP 97119207A EP 97119207 A EP97119207 A EP 97119207A EP 0852273 A2 EP0852273 A2 EP 0852273A2
Authority
EP
European Patent Office
Prior art keywords
press
shoe
nip
dewatering
extended
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.)
Granted
Application number
EP97119207A
Other languages
German (de)
English (en)
Other versions
EP0852273B1 (fr
EP0852273A3 (fr
Inventor
Hans Loser
Joachim Henssler
Karl Dr. Steiner
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 EP0852273A2 publication Critical patent/EP0852273A2/fr
Publication of EP0852273A3 publication Critical patent/EP0852273A3/fr
Application granted granted Critical
Publication of EP0852273B1 publication Critical patent/EP0852273B1/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
    • 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
    • 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

Definitions

  • the invention relates to a dewatering press of a machine for manufacturing a fibrous web, in particular paper and / or cardboard web, with at least an extended nip in the web running direction, which is between a rotating flexible press belt of a Schunpreßech and a counter surface against which the flexible press belt by at least one of the shoe press unit assigned press shoe is pressable, the press nip length at least in essentially by the length of the press shoe measured in the web running direction Shoe press unit is determined, and the fibrous web with at least one drainage belt runs through the extended press nip.
  • the aim of the invention is therefore a dewatering press of the type mentioned Kind to create a sufficient with the least possible technical effort good drainage of the fibrous web guaranteed.
  • the object was achieved by the dewatering press described in claim 1 solved, the subclaims special forms of performance represent.
  • the dwell time is generally the length of the press nip and the speed of the fibrous web certainly.
  • the press nip There are many options for the design of the press nip, including several Drainage belts can run through the press nip.
  • the extended nip of a flexible press belt Shoe press unit are formed, which against a cylindrical and under Circumference-controlled roll is pressed, the press shoe the shoe press unit has a concave contact surface.
  • the Press nip can also be formed by two shoe press units, the press surface is preferably flat.
  • the press shoe can one or both shoe press units from several Smaller ones arranged axially and / or in the web running direction Press shoes exist. At least some of the smaller press shoes can be used be designed to be independent of each other.
  • the section or sections of the press nip in which the press pressure is greater than (T abs x 100) 3 N / m 2 and in particular greater than 500 KN / m 2 are particularly decisive.
  • the dewatering press consists of at least one press nip 3 which is elongated in the web running direction 2 and which is formed between a rotating flexible and water-impermeable press belt 4 of a shoe press unit 5 and a counter surface 6 against which the flexible press belt 4 by at least one of the shoe press unit 5 assigned press shoe 7 or 7 'can be pressed.
  • the press nip length l p is essentially determined by the press shoe length of the shoe press unit 5 measured in the web running direction 2.
  • the fibrous web 1 runs together with at least one water-absorbing drainage belt 8 through the extended press nip 3.
  • the exact structural design of the shoe press units 5 and the counter roller 9 are generally known and can also be used, for example, in the introduction to the description mentioned documents are taken.
  • the pressure the press shoes 7 and 7 ' is preferably hydraulic and the lubrication between the press shoes 7 and 7 'and the press belts 4 hydrodynamically and / or hydrostatic.
  • FIG 1 While in Figure 1 a press shoe 7 with a concave contact surface Shoe press unit 5 the press belt 4 against a cylindrical counter roller 9 Formation of an extended press nip 3 presses there are two in Figure 2 in the direction of web travel 2 spaced apart and here also independent of each other controllable pressing small press shoes 7 '.
  • Figure 3 in turn shows the formation a flat press nip 3 by means of two shoe press units 5, one of which Shoe press unit 5 a press shoe 7 and the other two smaller press shoes 7 '.
  • About the press shoes 7 and 7 ' is a flexible endless and water-impermeable drainage tape 4 out.
  • the press shoe 7 of a shoe press unit 5 consists of a plurality of smaller press shoes 7 ′ arranged side by side in the web running direction 2 with the very deep pressure sinks possibly present between them (FIGS. 2 and 5).
  • the press shoe 7 forms pressure sinks in the web running direction 2 or else has a smaller pressure gradient at the inlet and / or outlet of the press nip 3, a more precise determination of the press nip length l p may be necessary or advantageous.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)
EP97119207A 1996-12-05 1997-11-04 Presse de déshydratation Expired - Lifetime EP0852273B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19650396A DE19650396A1 (de) 1996-12-05 1996-12-05 Entwässerungspresse
DE19650396 1996-12-05

Publications (3)

Publication Number Publication Date
EP0852273A2 true EP0852273A2 (fr) 1998-07-08
EP0852273A3 EP0852273A3 (fr) 1999-05-26
EP0852273B1 EP0852273B1 (fr) 2003-02-19

Family

ID=7813684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97119207A Expired - Lifetime EP0852273B1 (fr) 1996-12-05 1997-11-04 Presse de déshydratation

Country Status (3)

Country Link
US (1) US6228221B1 (fr)
EP (1) EP0852273B1 (fr)
DE (2) DE19650396A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016754A1 (fr) * 1998-12-29 2000-07-05 Voith Sulzer Papiertechnik Patent GmbH Machine et procédé pour la fabrication d'une bande fibreuse

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19805593A1 (de) * 1998-02-12 1999-08-19 Voith Sulzer Papiertech Patent Eindicker
SE513299C2 (sv) * 1998-12-23 2000-08-21 Skogsind Tekn Foskningsinst Anordning och process för torkning av en fiberbana
DE19946973A1 (de) * 1999-09-30 2001-04-05 Voith Paper Patent Gmbh Verfahren und Vorrichtung zur Entwässerung einer Faserstoffbahn
DE19946978A1 (de) * 1999-09-30 2001-04-05 Voith Paper Patent Gmbh Vorrichtung zur Entwässerung einer Materialbahn
JP4779564B2 (ja) 2005-10-18 2011-09-28 王子製紙株式会社 抄紙機のシュープレス装置及び紙の製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071513A (en) * 1986-12-24 1991-12-10 Sulzer-Escher Wyss Gmbh Method for the mechanical-thermal dewatering of a fiber stock web
EP0549553A1 (fr) * 1991-12-23 1993-06-30 Valmet Corporation Section de presse d'une machine à papier, en particulier pour papier à imprimer
EP0859081A2 (fr) * 1997-02-12 1998-08-19 Voith Sulzer Papiermaschinen GmbH Appareil de pressage pour déshumidifier ou satiner une bande fibreuse

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793027A (fr) 1971-12-20 1973-04-16 Beloit Corp Presse controlee
FI71369C (fi) * 1983-03-23 1986-12-19 Valmet Oy Laongnyppress foer pappersmaskin
US4738752A (en) 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
US5639351A (en) 1991-12-23 1997-06-17 Valmet Corporation Press section of a paper machine, in particular for printing paper qualities
DE4216264C2 (de) * 1992-05-16 2000-05-25 Voith Sulzer Papiermasch Gmbh Verfahren zum Trocknen und Auflockern einer Papierbahn
US5868904A (en) * 1993-12-08 1999-02-09 Valmet Corporation Press section employing an extended nip press with suction counter roll

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5071513A (en) * 1986-12-24 1991-12-10 Sulzer-Escher Wyss Gmbh Method for the mechanical-thermal dewatering of a fiber stock web
EP0549553A1 (fr) * 1991-12-23 1993-06-30 Valmet Corporation Section de presse d'une machine à papier, en particulier pour papier à imprimer
EP0859081A2 (fr) * 1997-02-12 1998-08-19 Voith Sulzer Papiermaschinen GmbH Appareil de pressage pour déshumidifier ou satiner une bande fibreuse

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016754A1 (fr) * 1998-12-29 2000-07-05 Voith Sulzer Papiertechnik Patent GmbH Machine et procédé pour la fabrication d'une bande fibreuse
DE19860687A1 (de) * 1998-12-29 2000-07-06 Voith Sulzer Papiermasch Gmbh Maschine sowie Verfahren zur Herstellung einer Faserstoffbahn
US6746574B2 (en) 1998-12-29 2004-06-08 Voith Sulzer Papiertechnik Patent Gmbh Machine and method for the manufacture of a fiber material web
EP1816256A1 (fr) * 1998-12-29 2007-08-08 Voith Patent GmbH Machine et procédé pour la fabrication d'une bande fibreuse
US7288168B2 (en) 1998-12-29 2007-10-30 Voith Sulzer Papiertechnik Patent Gmbh Machine and method for the manufacture of a fiber material web
US7326320B2 (en) 1998-12-29 2008-02-05 Voith Patent Gmbh Machine for the manufacture of a fiber material web
US7332059B2 (en) 1998-12-29 2008-02-19 Voith Sulzer Papiertechnik Patent Gmbh Method for the manufacture of a fiber material web

Also Published As

Publication number Publication date
DE19650396A1 (de) 1998-06-10
EP0852273B1 (fr) 2003-02-19
EP0852273A3 (fr) 1999-05-26
DE59709347D1 (de) 2003-03-27
US6228221B1 (en) 2001-05-08

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