EP0745725A3 - Roller press - Google Patents

Roller press Download PDF

Info

Publication number
EP0745725A3
EP0745725A3 EP96108438A EP96108438A EP0745725A3 EP 0745725 A3 EP0745725 A3 EP 0745725A3 EP 96108438 A EP96108438 A EP 96108438A EP 96108438 A EP96108438 A EP 96108438A EP 0745725 A3 EP0745725 A3 EP 0745725A3
Authority
EP
European Patent Office
Prior art keywords
roller
opposing
press
counter
casing
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
EP96108438A
Other languages
German (de)
French (fr)
Other versions
EP0745725A2 (en
EP0745725B1 (en
Inventor
Rainer Bentele
Christian Schiel
Wolf Gunter Stotz
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
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 filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0745725A2 publication Critical patent/EP0745725A2/en
Publication of EP0745725A3 publication Critical patent/EP0745725A3/en
Application granted granted Critical
Publication of EP0745725B1 publication Critical patent/EP0745725B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • 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

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Friction Gearing (AREA)

Abstract

Roller press, calender etc. has three rollers min. forming pressure gaps to process fabric web (2) where one (3) has a very flexible casing rotating about a fixed carrier (4) on which it is mounted via at least one support element (6) with a concave surface (7) guaranteeing a broad pressure gap (1) with a counter cylinder (8). The latter forms another gap (15) with at least one flexurally non-controlled roller (14) and its casing's (9) outer circumference reduces axially from roller mid-point to ends. Also claimed is a like second roller press where the feature of the counter roller's casing is that it rotates about a fixed carrier (10) and, at its ends can not be moved against, but is mounted via at least one support element (11) on, the carrier. The elements act in a direction which, while being set at an insignificant angle, DELTA , out of the pressure plane formed with the first roller (3), is tilted w.r.t. the third roller forming the other pressure gap. Also claimed is third roller press similar to the last where the feature of the counter roller's support elements is that, along with the opposing main roller elements (6), they are so arranged and activated that the main roller exerts greater resultant compressive force in opposing that from the counter roller. Pref. the circumference of the main roller's casing and of the third roller reduces axially from roller mid-point to ends by pref. the same amount. All rollers circumferences taper off similarly to those of the preferred first press. Alternatively the counter roller's circumference does not alter. Angle DELTA is between 2 and 15, pref. 4 and 8 degrees and varies from roller mid-point to ends. All roller circumferences of taper off similarly to those of the preferred second press, angle DELTA has the same features and support elements are similarly tilted. Opposing support elements are singly, in groups or all together connected to a common pressurised fluid pipe. It is guaranteed that the main roller exerts greater compression in opposing counter roller force by fluid pressure reducing devices and the ratio of the areas of the opposing support elements.
EP96108438A 1995-06-03 1996-05-28 Roller press Expired - Lifetime EP0745725B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19520443A DE19520443C2 (en) 1995-06-03 1995-06-03 Roller press
DE19520443 1995-06-03

Publications (3)

Publication Number Publication Date
EP0745725A2 EP0745725A2 (en) 1996-12-04
EP0745725A3 true EP0745725A3 (en) 1997-01-22
EP0745725B1 EP0745725B1 (en) 2000-07-26

Family

ID=7763626

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108438A Expired - Lifetime EP0745725B1 (en) 1995-06-03 1996-05-28 Roller press

Country Status (6)

Country Link
US (2) US5908537A (en)
EP (1) EP0745725B1 (en)
JP (1) JPH0924492A (en)
AT (1) ATE195009T1 (en)
CA (1) CA2178020A1 (en)
DE (2) DE19520443C2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19800807A1 (en) * 1998-01-12 1999-07-15 Voith Sulzer Papiertech Patent Press arrangement
DE10133531A1 (en) * 2001-07-11 2003-01-30 Kuesters Eduard Maschf Long nip roller press for dewatering a fibrous web
CN100348799C (en) * 2002-08-30 2007-11-14 埃杜阿德库斯特斯机器厂两合公司 Long roll gap roll sequeezer for fibre fabric dewatering
SE0300127D0 (en) * 2003-01-17 2003-01-17 Imego Ab Indicator arrangement
US7185537B2 (en) * 2003-06-04 2007-03-06 Metso Paper, Inc. Nip and loading analysis system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909277A1 (en) * 1979-03-09 1980-09-11 Geb Pisch Hermengild Mitter Paper or plastics sheet processing roller - has the pressure concentrated at the contact zone with the material
EP0372178A1 (en) * 1988-12-08 1990-06-13 Eduard Küsters Maschinenfabrik GmbH & Co. KG Calander

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2155477A1 (en) * 1971-11-09 1973-05-10 Johann Heinrich Saueressig Mas Pressure roller - for a textile calendering printing or finishing machine,and esp for a multicolour gravure printing machi
US4287021A (en) * 1979-08-27 1981-09-01 Beloit Corporation Extended nip press
FI833133A (en) * 1982-09-30 1984-03-31 Beloit Corp PRESS MED FOERLAENGT NYP
DE3343313A1 (en) * 1983-11-30 1985-06-05 J.M. Voith Gmbh, 7920 Heidenheim ROLLER FOR TREATING TRACKS, PREFERABLY PAPER TRACKS
DE3408119A1 (en) * 1984-02-06 1985-08-14 Sulzer-Escher Wyss GmbH, 7980 Ravensburg WET PRESS FOR DRAINING A FIBER TRAIN
DE4140879A1 (en) * 1991-12-11 1993-06-17 Voith Gmbh J M PRESS RELEASE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909277A1 (en) * 1979-03-09 1980-09-11 Geb Pisch Hermengild Mitter Paper or plastics sheet processing roller - has the pressure concentrated at the contact zone with the material
EP0372178A1 (en) * 1988-12-08 1990-06-13 Eduard Küsters Maschinenfabrik GmbH & Co. KG Calander

Also Published As

Publication number Publication date
US5908537A (en) 1999-06-01
DE59605635D1 (en) 2000-08-31
ATE195009T1 (en) 2000-08-15
US5788817A (en) 1998-08-04
EP0745725A2 (en) 1996-12-04
DE19520443A1 (en) 1996-12-05
EP0745725B1 (en) 2000-07-26
CA2178020A1 (en) 1996-12-04
JPH0924492A (en) 1997-01-28
DE19520443C2 (en) 2000-05-31

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