EP1251203A1 - Bande pour presse à patin - Google Patents

Bande pour presse à patin Download PDF

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Publication number
EP1251203A1
EP1251203A1 EP01109618A EP01109618A EP1251203A1 EP 1251203 A1 EP1251203 A1 EP 1251203A1 EP 01109618 A EP01109618 A EP 01109618A EP 01109618 A EP01109618 A EP 01109618A EP 1251203 A1 EP1251203 A1 EP 1251203A1
Authority
EP
European Patent Office
Prior art keywords
press belt
shoe press
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.)
Granted
Application number
EP01109618A
Other languages
German (de)
English (en)
Other versions
EP1251203B1 (fr
Inventor
Franz 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 AT01109618T priority Critical patent/ATE364750T1/de
Priority to EP01109618A priority patent/EP1251203B1/fr
Priority to DE50112624T priority patent/DE50112624D1/de
Priority to PCT/EP2002/003129 priority patent/WO2002084020A1/fr
Priority to US10/475,632 priority patent/US7014734B2/en
Priority to CA002434776A priority patent/CA2434776C/fr
Publication of EP1251203A1 publication Critical patent/EP1251203A1/fr
Application granted granted Critical
Publication of EP1251203B1 publication Critical patent/EP1251203B1/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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • 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 which in German is also known as a press jacket 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 called 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 elastomer Has jacket material and 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 another press jacket made of elastomeric material known in the one essentially parallel to the surface fabric layer made of a high-strength material - for example Aramid fibers - is embedded.
  • the invention includes the basic idea that Shoe press belt with an elastomer layer made of a very soft and supple (and also reasonably inexpensive) Form elastomers, which makes it a total unusually low bending moment and a low total elastic modulus can be awarded.
  • this advantageously set parameter is the achievement the above mentioned, improved in several aspects Use properties justified.
  • the soft rubber elastomer layer comprises the belt a highly abrasion resistant Rubber compound made of several rubber or silicone rubber compositions. These compositions are in the compound in particular homogeneously mixed with one another.
  • the hardness is preferably Range between 20 and 50 P + J, currently in a Standard variant of the prestigious version at approx. 35 P + J.
  • Fiber reinforcement in the elastomer layer
  • This textile reinforcement component is current Knowledge level preferred as a thread 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-strength plastic fibers can be used. With the latter is particularly on polyester and polyamide copolymers or Thinking aramid. Are in line with customer requirements combinations or mixtures of these materials are also expedient used.
  • the reinforcement layer is preferably close to the back in Elastomer-textile composite incorporated, on the one hand elastic behavior on the front of the belt is not to impair and on the other hand the lowest possible Bending moment on the curve of the shoe and on the belten ends and overall the intended optimization of the multidimensional To ensure curvature behavior.
  • 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, selected as 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 a structure with recesses in currently appears preferred kind of blind holes. In particular, these can be approximate be cylindrical and isolated from each other. There are but also 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 one Press nip (shoe press).
  • a press shoe 3 opposite a press roller 5 is arranged, and in the between the two formed press nip (press nip) 7 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 use at temperatures above 100 ° C Can be used continuously and keeps temperature peaks of up to approx. 130 ° C.
  • FIG. 2 A shoe press belt that meets these requirements 9 is (schematically) in cross section in FIG. 2 shown.
  • This shoe press belt 9 has a base Soft rubber band 9a, near the back of which a textile reinforcement layer 9b with a scrim made of carbon fibers or modified glass fibers or aramid fibers is provided.
  • the total thickness of the belt is 7.5 mm; in the Area of the lateral lips 9c approx. 5 mm.
  • blind holes 9d with a diameter of 2.5 mm and a depth of 2 mm. The total area of the Openings is 20% of the front surface of the belt.
EP01109618A 2001-04-18 2001-04-18 Bande pour presse à patin Expired - Lifetime EP1251203B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT01109618T ATE364750T1 (de) 2001-04-18 2001-04-18 Schuhpressenbelt
EP01109618A EP1251203B1 (fr) 2001-04-18 2001-04-18 Bande pour presse à patin
DE50112624T DE50112624D1 (de) 2001-04-18 2001-04-18 Schuhpressenbelt
PCT/EP2002/003129 WO2002084020A1 (fr) 2001-04-18 2002-03-20 Bande de presse a patin
US10/475,632 US7014734B2 (en) 2001-04-18 2002-03-20 Shoe press belt
CA002434776A CA2434776C (fr) 2001-04-18 2002-03-20 Bande de presse a patin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01109618A EP1251203B1 (fr) 2001-04-18 2001-04-18 Bande pour presse à patin

Publications (2)

Publication Number Publication Date
EP1251203A1 true EP1251203A1 (fr) 2002-10-23
EP1251203B1 EP1251203B1 (fr) 2007-06-13

Family

ID=8177175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01109618A Expired - Lifetime EP1251203B1 (fr) 2001-04-18 2001-04-18 Bande pour presse à patin

Country Status (6)

Country Link
US (1) US7014734B2 (fr)
EP (1) EP1251203B1 (fr)
AT (1) ATE364750T1 (fr)
CA (1) CA2434776C (fr)
DE (1) DE50112624D1 (fr)
WO (1) WO2002084020A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004011665A1 (de) * 2004-03-10 2005-10-06 Stowe Woodward Ag Integraler Schuhpressenbelt

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7011730B2 (en) * 2002-12-30 2006-03-14 Albany International Corp. Structure for process belt
DE102004030008A1 (de) * 2004-06-22 2006-01-12 Voith Paper Patent Gmbh Breitnipkalander und Verfahren zum Satinieren einer Materialbahn
DE102005060590A1 (de) * 2005-12-17 2007-06-21 Voith Patent Gmbh Walzenmantel
AT505760B1 (de) * 2008-01-09 2009-04-15 Andritz Ag Maschf Vorrichtung und verfahren zur entwasserung einer materialbahn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483745A (en) * 1982-09-29 1984-11-20 Beloit Corporation Method and apparatus of sheet transfer using a nonporous smooth surfaced belt
EP0258759A1 (fr) * 1986-09-01 1988-03-09 Gummiwerke Becker AG Presse humide pour la déshydratation de bandes de fibres
EP0420372B1 (fr) * 1989-09-28 1994-04-27 Albany International Corp. Bande pour presse élargie
EP0939162A2 (fr) * 1998-02-26 1999-09-01 Ichikawa Co.,Ltd. Bande pour presse à patin et son procédé de fabrication

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US412656A (en) * 1889-10-08 Lawrence o neill
US3685436A (en) * 1971-06-01 1972-08-22 Sw Ind Inc Process for squeezing water from paper sheet
US4431045A (en) * 1982-01-27 1984-02-14 Josefsson Lars G Apparatus for pressure treatment of a moving web
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
US4552620A (en) * 1983-09-19 1985-11-12 Beloit Corporation Paper machine belt
FI850087L (fi) * 1985-01-08 1986-07-09 Valmet Oy Foerfarande och anordning samt remkomponent foer utjaemning av presstrycket i pressnypet av en pappersmaskin.
ZA859176B (en) * 1985-03-13 1986-08-27 Albany Int Corp Papermaking belt with smooth inner surface and method of making same
BR8507290A (pt) * 1985-10-03 1987-10-27 Beloit Corp Uma esteira de apoio para uma prensa de mordedura ampliada
EP0289477A3 (fr) 1987-04-28 1989-03-08 Valmet Paper Machinery Inc. Procédé pour le pressage à chaud d'une bande de papier et dispositif de séchage pour l'application du procédé
US4973383A (en) * 1989-08-11 1990-11-27 Beloit Corporation Bearing blanket for an extended nip press
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
DE19654197A1 (de) * 1996-12-23 1998-06-25 Voith Sulzer Papiermasch Gmbh Maschine zur Herstellung einer Faserstoffbahn
JP3045975B2 (ja) 1997-04-24 2000-05-29 市川毛織株式会社 シュープレス用ベルト
US6168733B1 (en) 1998-08-31 2001-01-02 Eastman Chemical Company Method for forming discrete pellets from viscous materials
JP3488397B2 (ja) * 1999-04-26 2004-01-19 市川毛織株式会社 シュープレス用ベルト及びその製造方法
JP2001089989A (ja) 1999-09-20 2001-04-03 Ichikawa Woolen Textile Co Ltd 湿紙搬送ベルト及びその製造方法
DE29923825U1 (de) 1999-11-24 2001-04-05 Schaefer Kg Gummiwalzenfabrik Preßmantel, Preßband oder Walzenbeschichtung
DE50100938D1 (de) * 2000-06-06 2003-12-18 Heimbach Gmbh Thomas Josef Schuhpressenband für Papiermaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4483745A (en) * 1982-09-29 1984-11-20 Beloit Corporation Method and apparatus of sheet transfer using a nonporous smooth surfaced belt
EP0258759A1 (fr) * 1986-09-01 1988-03-09 Gummiwerke Becker AG Presse humide pour la déshydratation de bandes de fibres
EP0420372B1 (fr) * 1989-09-28 1994-04-27 Albany International Corp. Bande pour presse élargie
EP0939162A2 (fr) * 1998-02-26 1999-09-01 Ichikawa Co.,Ltd. Bande pour presse à patin et son procédé de fabrication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004011665A1 (de) * 2004-03-10 2005-10-06 Stowe Woodward Ag Integraler Schuhpressenbelt

Also Published As

Publication number Publication date
EP1251203B1 (fr) 2007-06-13
US7014734B2 (en) 2006-03-21
CA2434776C (fr) 2008-08-19
CA2434776A1 (fr) 2002-10-24
ATE364750T1 (de) 2007-07-15
WO2002084020A1 (fr) 2002-10-24
DE50112624D1 (de) 2007-07-26
US20040094282A1 (en) 2004-05-20

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