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WO2000063491A3 - Method for cross-direction profiling of a paper or board web in a nip - Google Patents

Method for cross-direction profiling of a paper or board web in a nip Download PDF

Info

Publication number
WO2000063491A3
WO2000063491A3 PCT/FI2000/000319 FI0000319W WO0063491A3 WO 2000063491 A3 WO2000063491 A3 WO 2000063491A3 FI 0000319 W FI0000319 W FI 0000319W WO 0063491 A3 WO0063491 A3 WO 0063491A3
Authority
WO
WIPO (PCT)
Prior art keywords
nip
paper
pressure medium
feed points
roll
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.)
Ceased
Application number
PCT/FI2000/000319
Other languages
French (fr)
Other versions
WO2000063491A2 (en
Inventor
Timo Torvi
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
Application filed by Valmet Oy filed Critical Valmet Oy
Priority to EP00918915A priority Critical patent/EP1226305B1/en
Priority to AU39694/00A priority patent/AU3969400A/en
Priority to CA002370354A priority patent/CA2370354C/en
Priority to DE60009119T priority patent/DE60009119T2/en
Priority to AT00918915T priority patent/ATE262075T1/en
Publication of WO2000063491A2 publication Critical patent/WO2000063491A2/en
Publication of WO2000063491A3 publication Critical patent/WO2000063491A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/002—Opening or closing mechanisms; Regulating the pressure

Landscapes

  • Paper (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

A nip is formed between a backing roll (10) and a loading roll (20). The loading roll (20) is comprised of a stationary support structure (21) and, adapted to run about the same, a flexible mantle (22) supported by its inner surface (22a) on said support structure (21) by means of at least one supporting member (23) serving to press said flexible mantle (22) against said backing roll (10). The loading roll (20) includes further at least one essentially axially aligned row of discrete pressure medium feed points (25, 26), whereby a pressure and/or flow rate controlled flow of pressure medium can be fed through the feed points (25, 26) of said at least one row against said inner surface (22a) of said mantle (22). According to the method, the pressure medium fed through said feed points (26) is used cross-machine direction (CD) profiling of the paper or board web passing through the nip (N).
PCT/FI2000/000319 1999-04-15 2000-04-14 Method for cross-direction profiling of a paper or board web in a nip Ceased WO2000063491A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP00918915A EP1226305B1 (en) 1999-04-15 2000-04-14 Method for cross-direction profiling of a paper or board web in a nip
AU39694/00A AU3969400A (en) 1999-04-15 2000-04-14 Method for cross-direction profiling of a paper or board web in a nip
CA002370354A CA2370354C (en) 1999-04-15 2000-04-14 Method for cross-direction profiling of a paper or board web in a nip
DE60009119T DE60009119T2 (en) 1999-04-15 2000-04-14 METHOD FOR CROSS-SECTION PROFILING OF A PAPER OR PAPER TRACK IN ONE GAP
AT00918915T ATE262075T1 (en) 1999-04-15 2000-04-14 METHOD FOR TRANSVERSE DIRECTIONAL PROFILING OF A PAPER OR CARDBOARD WEB IN A GAP

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI990839A FI112511B (en) 1999-04-15 1999-04-15 Method of profiling a paper or cardboard web in the transverse direction of a nip
FI990839 1999-04-15

Publications (2)

Publication Number Publication Date
WO2000063491A2 WO2000063491A2 (en) 2000-10-26
WO2000063491A3 true WO2000063491A3 (en) 2001-04-05

Family

ID=8554432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2000/000319 Ceased WO2000063491A2 (en) 1999-04-15 2000-04-14 Method for cross-direction profiling of a paper or board web in a nip

Country Status (7)

Country Link
EP (1) EP1226305B1 (en)
AT (1) ATE262075T1 (en)
AU (1) AU3969400A (en)
CA (1) CA2370354C (en)
DE (1) DE60009119T2 (en)
FI (1) FI112511B (en)
WO (1) WO2000063491A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5843283A (en) * 1995-12-01 1998-12-01 Voith Sulzer Papiermaschinen Lubrication of a roll jacket of a press roller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5843283A (en) * 1995-12-01 1998-12-01 Voith Sulzer Papiermaschinen Lubrication of a roll jacket of a press roller

Also Published As

Publication number Publication date
WO2000063491A2 (en) 2000-10-26
FI112511B (en) 2003-12-15
CA2370354C (en) 2008-02-19
FI990839L (en) 2000-10-16
FI990839A0 (en) 1999-04-15
ATE262075T1 (en) 2004-04-15
DE60009119T2 (en) 2005-04-28
CA2370354A1 (en) 2000-10-26
DE60009119D1 (en) 2004-04-22
EP1226305A2 (en) 2002-07-31
EP1226305B1 (en) 2004-03-17
AU3969400A (en) 2000-11-02

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