EP1293601A1 - Bande pour presse à patin - Google Patents

Bande pour presse à patin Download PDF

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Publication number
EP1293601A1
EP1293601A1 EP01122208A EP01122208A EP1293601A1 EP 1293601 A1 EP1293601 A1 EP 1293601A1 EP 01122208 A EP01122208 A EP 01122208A EP 01122208 A EP01122208 A EP 01122208A EP 1293601 A1 EP1293601 A1 EP 1293601A1
Authority
EP
European Patent Office
Prior art keywords
shoe press
press belt
belt according
shoe
layer
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Withdrawn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
EP01122208A
Other languages
German (de)
English (en)
Inventor
Franz Ing. Danzler
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.)
Stowe Woodward AG
Original Assignee
Stowe Woodward AG
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 Stowe Woodward AG filed Critical Stowe Woodward AG
Priority to EP01122208A priority Critical patent/EP1293601A1/fr
Priority to CA002435087A priority patent/CA2435087C/fr
Priority to PCT/EP2002/010441 priority patent/WO2003025282A1/fr
Priority to US10/476,339 priority patent/US7005042B2/en
Publication of EP1293601A1 publication Critical patent/EP1293601A1/fr
Withdrawn legal-status Critical Current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
    • D21F3/0227—Belts or sleeves therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/901—Impermeable belts for extended nip press

Definitions

  • the invention relates to a shoe press belt according to the preamble of claim 1.
  • Such a shoe press belt also known as a press jacket in German is called, is in paper, cardboard or tissue machines for extensive drainage of the respective product (Wet press) or for finishing the surface (Calender) used.
  • the corresponding wet presses or calenders have an extended press nip ("press nip") and are therefore also known as shoe presses.
  • the shoe press belt or comes in their press nip Press jacket on its back (bottom) with the actual Press shoe in sliding contact and must therefore on this Side have excellent sliding properties. On his The shoe press belt comes with a front (top) Drainage felt (and indirectly via this with the respective Product) or - for a calender - also directly with the Product in contact, which is pressed by a rotating roller becomes.
  • Shoe press belts come in various designs from the State of the art known.
  • EP 0 420 372 B1 describes a shoe press belt of the generic type with a basic fabric in the form of an endless Loop with inside and outside, smooth polymer resin coating, which make the tissue impermeable to liquids and gives it a uniform thickness.
  • a polymer resin which forms the elastomer is here polyurethane called.
  • the tape has one on the back smooth, pliable, liquid impermeable Band layer and on the front a carrier web and a attached fiber layer.
  • From DE 42 02 731 A1 is a generic press jacket known for a shoe press, which is an elastomeric jacket material and has two layers of reinforcing threads.
  • the specification of the jacket material is used here on the one hand on a swellable material, on the other hand on polyurethane pointed.
  • a paper machine fabric is special from WO 95/16820 a shoe press belt - described in which a carrier fabric is provided with a polymer coating, which a tixotropic material (e.g. aramite or silica glass) having.
  • the base material here is also polyurethane called.
  • DE 44 38 354 A1 is a further press jacket known from elastomeric material, in which one essentially layer of fabric running parallel to the surface made of a high-strength material - e.g. aramid fibers - is embedded.
  • DE 299 23 825 U1 is a further press jacket or a Press belt or a roller coating for the paper, pulp, Tissue, printing or textile industry known, which consists of a rubber polymer and in that to increase of the elasticity module with natural and / or synthetic fibers an alignment in the running direction are embedded.
  • the invention lies in relation to these known solutions Task based on a shoe press belt with further improved Performance properties, especially optimized elastic properties and advantageous multi-dimensional curvature behavior, to achieve a smooth machine run with low drive power and long total runtime.
  • the invention includes the basic idea that Shoe press belt made of a very soft and supple (and also sufficiently inexpensive) to form elastomers, which gives it an unusually low bending moment overall and given a low total modulus of elasticity can be.
  • the invention further closes the concept one that holds the bobble on one for a variety of uses uniform soft rubber backing with integrated To build textile reinforcement on (or with coherent) an elastomeric top or wear layer is formed. After all, it is for the success of the invention important that the mechanical properties of the Carrier layer and top layer forming elastomers differ greatly from each other.
  • the proposed structure offers the possibility of a Selection of the material of the cover layer from different suitable elastomers, each with special advantages resistance to temperature, oil or bending fatigue or the quality of the belt surface (for manufacturing particularly high-quality or specially structured paper surfaces). There are practically no restrictions here more about the surface design.
  • the proposed Schuhpressenbelt is also future developments on paper machines - as expected higher process temperatures - grown and to practically every occurring application optimally tunable.
  • the cover layer essentially from a - known as such - Polyurethane material, the hardness here in particular (as well as that of the material of the carrier layer) in the area is between 20 and 50 P + J.
  • this PU wear layer is in particular an optimization of the surface profile according to the user requirements possible.
  • the top layer consists essentially of Soft rubber, the hardness of which is that of soft rubber Carrier layer essentially coincides and the coherent can be formed with the carrier layer.
  • the soft rubber carrier layer comprises and optional soft rubber top layer
  • the belt is a highly abrasion-resistant rubber compound made of several rubber or silicone rubber compositions. These compositions are particular in the compound homogeneously mixed together.
  • a fiber reinforcement is in the carrier layer (fiber reinforcement) or a composite material incorporated.
  • This textile reinforcement component is out of date Level of knowledge preferred as a scrim in circumferential and / or longitudinal direction of the belt. Also an execution as a staple fiber fleece made of short fibers - as an independent one Reinforcement layer or in combination with another Reinforcement, for example the thread mentioned, appears to make sense. Even the use of a fabric as Reinforcement layer is possible.
  • Modified in particular can be used as reinforcing material
  • Glass fibers or carbon fibers, but especially also high solid plastic fibers can be used.
  • the latter is especially on polyester and polyamide copolymers or aramid to think. In adaptation to customer requirements too Combinations or mixtures of these materials are appropriate used.
  • the textile reinforcement is preferably near the back of the Backing layer incorporated in the elastomer-textile composite to on the one hand the rubber-elastic behavior on the front of the belt and on the other hand if possible low bending moment on the shoe curve and on the Beltenden and thus overall the intended optimization to ensure the multi-dimensional curvature behavior.
  • the thickness of the carrier layer expediently in the range between 4 and 6 mm, standard at 5 mm, and the thickness of the Cover layer can vary between about 2 and 6 mm.
  • the total thickness of the belt in coordination on the elasticity and strength properties of each Materials especially in the range between 5 and 10 mm, standard at approx. 7.5 mm.
  • the front of the belt can be smooth, what be particularly useful when used in a calender becomes. But it can - especially for use in a wet press - also have a distinctive structure. As preferred a structure with exceptions in Art of blind holes. In particular, these can be approximately cylindrical and be isolated from each other. But there are structures with interconnected recesses, Groove structures or the like applicable.
  • the open cross-sectional area the structured front (i.e. the total area of the recesses) expediently 10 to 50% the total front surface of the belt.
  • the open cross-sectional area the structured front expediently 10 to 50% the total front surface of the belt.
  • an area portion of the openings appears of about 20% as appropriate.
  • the recesses have especially lateral dimensions in the range between 0.5 and 5 mm, especially between 1 and 3 mm. Your depth is expediently in the same area.
  • the shoe press belt has a rigidity which is significantly reduced compared to conventional belts, or - converted to the cross section - bending stress.
  • the force required to achieve a deflection of 15 mm in a three-point bending test on a 30 mm wide and 5 mm thick test specimen on two supports arranged 100 mm apart is 17 N or less, in particular 13 N or less, and that Bending stress is below 110 N / cm 2 and in particular below 90 N / cm 2 .
  • a force of 11 N and a bending stress of 70 N / cm 2 were measured.
  • Fig. 1 shows a detail of the press nip a wet press 1 of a paper machine with an extended press nip (Shoe press).
  • a press shoe 3 is opposite a press roll 5 is arranged, and in the formed between the two Press nip (press nip) 7 is between one on the Press shoe 3 sliding shoe press belt 9, a press felt 11 and the surface of the press roll 5 a paper web 13 dewatered.
  • the shoe press belt 9 must have elasticity and Have flexibility that is as good as possible about the curved surface of the press shoe 3 and the uniform Exercise an elastic pressure on the paper web 13 (via the press felt 11) guaranteed. On the other hand, he has to be made sufficiently stable to withstand the high continuous stress (Tension, pressure and vibration stress) in Press nip 7 over an economically acceptable service life to have grown.
  • the hardness of the soft rubber lies in the Standard version at 35 P + J, but is according to customer requirements through appropriate variation and mixing of rubber compositions can be varied within wide limits.
  • the soft rubber is in continuous use at temperatures above 100 ° C usable and holds temperature peaks of up to approx. 130 ° C out.
  • the total area of the openings is 20% of the front surface of the belt or alternatively can in the top layer (not shown) grooves with comparable dimensions incorporated his.
  • a polyoritan wear layer is fixed with the carrier tape 9a 9c connected from a PU material, the Hardness is also around 35 P + J and their mechanical Properties largely with those of the carrier tape to match.
  • FIG. 2 A shoe press belt that meets these requirements 9 is shown in Fig. 2 (schematically) in section.
  • This shoe press belt 9 is based on a soft rubber carrier tape 9a, near the back of which a textile reinforcement 9b with a scrim made of carbon fibers or modified Glass fibers or aramid fibers are integrally incorporated.
  • the Total thickness of the belt is 7.5 mm, in the area of the side Lips 9d approx. 5 mm.
  • In the free surface of the wear layer 9c are blind holes 9e with a diameter of 2.5 mm and a depth of 2 mm.
  • the thickness of the Carrier layer or the carrier tape 9a is 5 mm and Thickness of the PU cover or wear layer 2.5 mm.

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  • Paper (AREA)
EP01122208A 2001-09-17 2001-09-17 Bande pour presse à patin Withdrawn EP1293601A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP01122208A EP1293601A1 (fr) 2001-09-17 2001-09-17 Bande pour presse à patin
CA002435087A CA2435087C (fr) 2001-09-17 2002-09-17 Bande de presse a sabot
PCT/EP2002/010441 WO2003025282A1 (fr) 2001-09-17 2002-09-17 Bande de presse à sabot
US10/476,339 US7005042B2 (en) 2001-09-17 2002-09-17 Nip press belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01122208A EP1293601A1 (fr) 2001-09-17 2001-09-17 Bande pour presse à patin

Publications (1)

Publication Number Publication Date
EP1293601A1 true EP1293601A1 (fr) 2003-03-19

Family

ID=8178644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122208A Withdrawn EP1293601A1 (fr) 2001-09-17 2001-09-17 Bande pour presse à patin

Country Status (4)

Country Link
US (1) US7005042B2 (fr)
EP (1) EP1293601A1 (fr)
CA (1) CA2435087C (fr)
WO (1) WO2003025282A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004044389A1 (de) * 2004-09-14 2006-03-30 Voith Paper Patent Gmbh Kalanderanordnung
WO2007068537A1 (fr) 2005-12-17 2007-06-21 Voith Patent Gmbh Enveloppe de cylindre

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE531891C2 (sv) * 2007-11-20 2009-09-01 Metso Paper Karlstad Ab Struktureringsbeklädnad och förfarande för framställning av en tissuepappersbana
WO2009067079A1 (fr) * 2007-11-20 2009-05-28 Metso Paper Karlstad Ab Courroie de structure, section de presse et machine de fabrication de papier mince pour fabriquer une bande de papier mince crêpé très bouffant, et procédé associé
US11098450B2 (en) 2017-10-27 2021-08-24 Albany International Corp. Methods for making improved cellulosic products using novel press felts and products made therefrom
CH715269A2 (de) 2018-08-23 2020-02-28 Clupak Ag Verfahren zur Herstellung eines Gummituchs.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685436A (en) * 1971-06-01 1972-08-22 Sw Ind Inc Process for squeezing water from paper sheet
US4552620A (en) * 1983-09-19 1985-11-12 Beloit Corporation Paper machine belt
EP0289477A2 (fr) * 1987-04-28 1988-11-02 Valmet Paper Machinery Inc. Procédé pour le pressage à chaud d'une bande de papier et dispositif de séchage pour l'application du procédé
US4908103A (en) * 1985-10-03 1990-03-13 Beloit Corporation Bearing blanket for an extended nip press having laminates of different hardnesses
EP0877118A2 (fr) * 1997-04-24 1998-11-11 Ichikawa Co.,Ltd. Bande pour presse à patin
US6083349A (en) * 1996-12-23 2000-07-04 Voith Sulzer Papiermaschinen Gmbh Machine and method for manufacturing a creped fibrous pulp web, with a shoe pre-press and a main shoe press
EP1085125A2 (fr) * 1999-09-20 2001-03-21 Ichikawa Co.,Ltd. Bande de transfert et procédé pour sa fabrication

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US412656A (en) * 1889-10-08 Lawrence o neill
US4431045A (en) * 1982-01-27 1984-02-14 Josefsson Lars G Apparatus for pressure treatment of a moving web
US4483745A (en) 1982-09-29 1984-11-20 Beloit Corporation Method and apparatus of sheet transfer using a nonporous smooth surfaced belt
JPS5954598U (ja) * 1982-10-01 1984-04-10 市川毛織株式会社 抄紙機の広巾ニツププレス用加圧ベルト
DE3629736A1 (de) 1986-09-01 1988-03-03 Becker Gummiwerke Nasspresse zum entwaessern von faserstoffbahnen
US4946731A (en) 1989-09-28 1990-08-07 Albany International Corp. Construction for an extended nip press belt
DE4028085C1 (fr) 1990-09-05 1992-02-27 Thomas Josef Heimbach Gmbh & Co, 5160 Dueren, De
JPH06287885A (ja) * 1991-04-15 1994-10-11 Yamauchi Corp 脱水プレス用エンドレスベルト
DE4202731C2 (de) 1992-01-31 1997-04-17 Voith Gmbh J M Preßmantel für eine Schuhpresse
GB2284772B (en) 1993-12-15 1997-11-26 Scapa Group Plc Papermachine clothing
SE502960C2 (sv) * 1994-06-15 1996-02-26 Nordiskafilt Ab Albany Arrangemang för kalandrering
DE4438354A1 (de) 1994-10-27 1996-05-02 Voith Sulzer Papiermasch Gmbh Preßmantel und Verfahren zur Herstellung eines Preßmantels
JP3408416B2 (ja) * 1998-02-26 2003-05-19 市川毛織株式会社 シュープレス用ベルト及びその製造法
US6168733B1 (en) 1998-08-31 2001-01-02 Eastman Chemical Company Method for forming discrete pellets from viscous materials
DE29923825U1 (de) 1999-11-24 2001-04-05 Schaefer Kg Gummiwalzenfabrik Preßmantel, Preßband oder Walzenbeschichtung
ES2210061T3 (es) * 2000-06-06 2004-07-01 THOMAS JOSEF HEIMBACH GESELLSCHAFT MIT BESCHRANKTER HAFTUNG & CO. Cinta de prensa de zapatas para maquinas papeleras.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685436A (en) * 1971-06-01 1972-08-22 Sw Ind Inc Process for squeezing water from paper sheet
US4552620A (en) * 1983-09-19 1985-11-12 Beloit Corporation Paper machine belt
US4908103A (en) * 1985-10-03 1990-03-13 Beloit Corporation Bearing blanket for an extended nip press having laminates of different hardnesses
EP0289477A2 (fr) * 1987-04-28 1988-11-02 Valmet Paper Machinery Inc. Procédé pour le pressage à chaud d'une bande de papier et dispositif de séchage pour l'application du procédé
US6083349A (en) * 1996-12-23 2000-07-04 Voith Sulzer Papiermaschinen Gmbh Machine and method for manufacturing a creped fibrous pulp web, with a shoe pre-press and a main shoe press
EP0877118A2 (fr) * 1997-04-24 1998-11-11 Ichikawa Co.,Ltd. Bande pour presse à patin
EP1085125A2 (fr) * 1999-09-20 2001-03-21 Ichikawa Co.,Ltd. Bande de transfert et procédé pour sa fabrication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004044389A1 (de) * 2004-09-14 2006-03-30 Voith Paper Patent Gmbh Kalanderanordnung
WO2007068537A1 (fr) 2005-12-17 2007-06-21 Voith Patent Gmbh Enveloppe de cylindre
US8034216B2 (en) 2005-12-17 2011-10-11 Voith Patent Gmbh Roll cover

Also Published As

Publication number Publication date
CA2435087A1 (fr) 2003-03-27
US7005042B2 (en) 2006-02-28
US20040144515A1 (en) 2004-07-29
CA2435087C (fr) 2009-04-14
WO2003025282A1 (fr) 2003-03-27

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