EP1098033A3 - Extended nip press roll - Google Patents

Extended nip press roll Download PDF

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Publication number
EP1098033A3
EP1098033A3 EP00120830A EP00120830A EP1098033A3 EP 1098033 A3 EP1098033 A3 EP 1098033A3 EP 00120830 A EP00120830 A EP 00120830A EP 00120830 A EP00120830 A EP 00120830A EP 1098033 A3 EP1098033 A3 EP 1098033A3
Authority
EP
European Patent Office
Prior art keywords
roll
water
shoe press
press roll
press
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Withdrawn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
EP00120830A
Other languages
German (de)
French (fr)
Other versions
EP1098033A2 (en
Inventor
Andreas Meschenmoser
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 Paper Patent 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 Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1098033A2 publication Critical patent/EP1098033A2/en
Publication of EP1098033A3 publication Critical patent/EP1098033A3/en
Withdrawn legal-status Critical Current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

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  • Paper (AREA)

Abstract

Die Erfindung betrifft eine Schuhpresswalze zur Entwässerung einer Faserstoffbahn (1), insbesondere einer Papier-, Karton-oder Tissuebahn in Maschinen zur Herstellung und/oder Veredelung derselben bestehend aus einem flexiblen Walzenmantel (2) mit profilierter Oberfläche zur Wasseraufnahme, die zur Bildung eines Pressspaltes (3) von zumindest einem Anpresselement (4) mit konkaver Anpressfläche (5) gegen eine zylindrische Gegenwalze (6) gedrückt wird, wobei zumindest zwischen der Schuhpresswalze und der Faserstoffbahn (1) ein endloses Entwässerungsband (7) zur Aufnahme des ausgepressten Wassers verläuft, welches nach dem Pressspalt (3) vom Walzenmantel (2) der Schuhpresswalze weggeführt wird und wobei möglichst nach am Pressspalt (3) zwischen der Schuhpresswalze und diesem Entwässerungsband (7) eine Wasserauffangvorrichtung (8) zur Aufnahme und Abführung des von dem Walzenmantel (2) der Schuhpresswalze abgeschleuderten Wassers angeordnet ist.The invention relates to a shoe press roll for dewatering a fibrous web (1), in particular a paper, cardboard or tissue web in manufacturing machines and / or finishing the same consisting of a flexible roll shell (2) profiled surface for water absorption, which is used to form a press nip (3) of at least one pressing element (4) with a concave pressing surface (5) against one cylindrical counter-roller (6) is pressed, at least between the Shoe press roller and the fibrous web (1) an endless dewatering belt (7) to take up the squeezed water that flows after the press nip (3) is guided away from the roll jacket (2) of the shoe press roll and, if possible after at the press nip (3) between the shoe press roll and this Drainage belt (7) a water collecting device (8) for receiving and Removal of the thrown from the roll shell (2) of the shoe press roll Water is arranged.

Dabei soll einer Rückbefeuchtung des Entwässerungsbandes (7) infolge des Abschleuderns des Oberflächenwassers des Walzenmantels (2) dadurch entgegen gewirkt werden, dass sich an den konkav gekrümmten Pressspalt (3) ein Übergangsbereich (9) anschließt, der mit einer konvex gekrümmten Anfangszone (10) mit relativ großem Krümmungsradius beginnt und mit einer konvex gekrümmten Endzone (11) mit relativ kleinem Krümmungsradius endet.

Figure 00000001
A rewetting of the dewatering belt (7) as a result of the surface water of the roll shell (2) being thrown off should be countered by the fact that a transition region (9) adjoins the concave curved press nip (3) and has a convexly curved starting zone (10) begins with a relatively large radius of curvature and ends with a convexly curved end zone (11) with a relatively small radius of curvature.
Figure 00000001
EP00120830A 1999-11-05 2000-09-25 Extended nip press roll Withdrawn EP1098033A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19953474 1999-11-05
DE19953474A DE19953474A1 (en) 1999-11-05 1999-11-05 Shoe press roller

Publications (2)

Publication Number Publication Date
EP1098033A2 EP1098033A2 (en) 2001-05-09
EP1098033A3 true EP1098033A3 (en) 2001-11-07

Family

ID=7928152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00120830A Withdrawn EP1098033A3 (en) 1999-11-05 2000-09-25 Extended nip press roll

Country Status (3)

Country Link
US (1) US6383338B1 (en)
EP (1) EP1098033A3 (en)
DE (1) DE19953474A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9481777B2 (en) 2012-03-30 2016-11-01 The Procter & Gamble Company Method of dewatering in a continuous high internal phase emulsion foam forming process
SE538098C2 (en) 2013-11-14 2016-03-01 Valmet Aktiebolag A long nip roller with a support member for treating a fiber web

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570314A (en) * 1981-06-24 1986-02-18 Escher Wyss Aktiengesellschaft Press roll
DE8805966U1 (en) * 1988-05-05 1989-09-07 J.M. Voith Gmbh, 7920 Heidenheim Press section of a machine for producing a fibrous web, in particular a paper web
WO1999045195A1 (en) * 1998-03-04 1999-09-10 Valmet Corporation Extended-nip press roll and a press section of a paper machine applying it
DE19833423A1 (en) * 1998-07-24 2000-01-27 Voith Sulzer Papiertech Patent Press rollers to extract water from a web fiber web has the upper roller set back to give a structured path through the press gap to reduce lateral forces to a minimum

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI71369C (en) * 1983-03-23 1986-12-19 Valmet Oy LAONGNYPPRESS FOER PAPER MASK
DE3808293C2 (en) * 1988-03-12 1994-08-18 Voith Gmbh J M Long nip press roll
DE3815278A1 (en) * 1988-05-05 1989-11-16 Voith Gmbh J M PRESS RELEASE OF A MACHINE FOR THE PRODUCTION OF A FIBROUS MATERIAL SHEET, IN PARTICULAR PAPER SHEET
US5167768A (en) * 1991-11-07 1992-12-01 Beloit Corporation Wide nip web press and method using a press shoe with two pivots
DE4337583A1 (en) * 1993-11-04 1995-05-11 Voith Gmbh J M Press device for treating a material web, in particular a paper web
FI942616A (en) * 1994-06-03 1995-12-04 Valmet Corp Paper web pre-press
US5543015A (en) * 1994-10-18 1996-08-06 Tamfelt Corp. Groove configuration for a press belt in an extended nip press
US5908536A (en) * 1995-10-03 1999-06-01 Valmet Corporation Method and machine for removing water from a paper or board web by pressing
DE19544978C2 (en) * 1995-12-01 1998-07-30 Voith Sulzer Papiermasch Gmbh Press roll
DE19642401A1 (en) * 1996-10-14 1998-04-16 Voith Sulzer Papiermasch Gmbh Press arrangement
DE19644110A1 (en) * 1996-10-31 1998-05-07 Voith Sulzer Papiermasch Gmbh Suction box
US6042694A (en) * 1997-09-30 2000-03-28 Valmet-Karlstad Ab Shoe press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570314A (en) * 1981-06-24 1986-02-18 Escher Wyss Aktiengesellschaft Press roll
DE8805966U1 (en) * 1988-05-05 1989-09-07 J.M. Voith Gmbh, 7920 Heidenheim Press section of a machine for producing a fibrous web, in particular a paper web
WO1999045195A1 (en) * 1998-03-04 1999-09-10 Valmet Corporation Extended-nip press roll and a press section of a paper machine applying it
DE19833423A1 (en) * 1998-07-24 2000-01-27 Voith Sulzer Papiertech Patent Press rollers to extract water from a web fiber web has the upper roller set back to give a structured path through the press gap to reduce lateral forces to a minimum

Also Published As

Publication number Publication date
EP1098033A2 (en) 2001-05-09
US6383338B1 (en) 2002-05-07
DE19953474A1 (en) 2001-05-10

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