CA2259768A1 - Shoe press - Google Patents

Shoe press Download PDF

Info

Publication number
CA2259768A1
CA2259768A1 CA002259768A CA2259768A CA2259768A1 CA 2259768 A1 CA2259768 A1 CA 2259768A1 CA 002259768 A CA002259768 A CA 002259768A CA 2259768 A CA2259768 A CA 2259768A CA 2259768 A1 CA2259768 A1 CA 2259768A1
Authority
CA
Canada
Prior art keywords
shoe
cylinders
piston
machine direction
support
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
CA002259768A
Other languages
French (fr)
Other versions
CA2259768C (en
Inventor
Jorma Snellman
Juha Kivimaa
Erik Brox
Lars Gustavsson
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.)
Valmet Technologies Oy
Original Assignee
Valmet Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26663202&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2259768(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from SE9800262A external-priority patent/SE511256C2/en
Priority claimed from US09/183,924 external-priority patent/US6083352A/en
Application filed by Valmet Oy filed Critical Valmet Oy
Publication of CA2259768A1 publication Critical patent/CA2259768A1/en
Application granted granted Critical
Publication of CA2259768C publication Critical patent/CA2259768C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses

Landscapes

  • Paper (AREA)

Abstract

A shoe press for applying pressure to a moving web of paper or the like includes a press shoe extending along a full width of the web being carried through a nip defined between the shoe and a backing member, a support for the shoe, and a plurality of articulated hydraulic loading cylinders arranged between the support and the shoe for urging the shoe toward the backing member to apply pressure to the web. Each loading cylinder includes a single piston and first and second cylinders attached to the shoe and to the support, respectively.
The opposite end portions of the piston are slidably received within the cylinders so as to define working chambers in the cylinders which are pressurizable by hydraulic fluid for urging the two cylinders away from each other. The piston engages the cylinders at seals which enable the piston to pivot with respect to both cylinders about axes parallel to and perpendicular to the machine direction so as to enable the loading cylinders to accommodate deformations and thermal expansion of the shoe in the cross-machine direction and to allow the shoe to pivot about an axis perpendicular to the machine direction.
CA002259768A 1998-01-30 1999-01-20 Shoe press Expired - Fee Related CA2259768C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9800262A SE511256C2 (en) 1998-01-30 1998-01-30 Shoe press for moving paper webs
SE9800262-9 1998-01-30
US09/183,924 1998-10-30
US09/183,924 US6083352A (en) 1998-01-30 1998-10-30 Shoe press

Publications (2)

Publication Number Publication Date
CA2259768A1 true CA2259768A1 (en) 1999-07-30
CA2259768C CA2259768C (en) 2004-05-11

Family

ID=26663202

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002259768A Expired - Fee Related CA2259768C (en) 1998-01-30 1999-01-20 Shoe press

Country Status (5)

Country Link
EP (1) EP0933471B1 (en)
JP (1) JPH11279976A (en)
AT (2) ATE235598T1 (en)
CA (1) CA2259768C (en)
DE (2) DE29900914U1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE515484C2 (en) * 1999-12-10 2001-08-13 Metso Paper Inc Pressing device with extended press nip for pressing a running paper or cardboard web
WO2001063043A1 (en) * 2000-02-18 2001-08-30 Metso Paper Karlstad Ab Press device having an extended nip for pressing a running paper or paperboard web
SE516410C2 (en) * 2000-05-29 2002-01-15 Valmet Karlstad Ab Press in a machine for producing a continuous running web of cellulosic fibrous material and method for changing the pressure profile in such a press
FI107063B (en) * 2000-06-19 2001-05-31 Metso Paper Inc Long nip press for a papermaking or board-making machine
FI116227B (en) * 2001-07-05 2005-10-14 Vaahto Oy The extended-nip
EP1605096B1 (en) * 2004-06-11 2007-09-05 Metso Paper, Inc. Shoe press
DE102007004607A1 (en) * 2007-01-30 2008-07-31 Gapcon Gmbh Loading device for shoe press, for managing requirements in paper machine and for production of paper, has hydraulic apparatus with guiding device for linear guidance of cylinder case
FI126727B (en) * 2012-10-19 2017-04-28 Valmet Technologies Inc Shoe reel, long nip press and fiber web machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423212C1 (en) * 1994-07-01 1996-03-07 Escher Wyss Gmbh Roll arrangement for paper machines eliminating clamping tendency
DE19515832C1 (en) * 1995-04-29 1996-05-02 Voith Sulzer Papiermasch Gmbh Hydraulic piston for flexing shoe press on paper:making machine

Also Published As

Publication number Publication date
DE29900914U1 (en) 1999-12-23
EP0933471A3 (en) 1999-08-18
AT3188U1 (en) 1999-11-25
DE69906167D1 (en) 2003-04-30
EP0933471B1 (en) 2003-03-26
EP0933471A2 (en) 1999-08-04
JPH11279976A (en) 1999-10-12
DE69906167T2 (en) 2003-12-11
CA2259768C (en) 2004-05-11
ATE235598T1 (en) 2003-04-15

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed