EP2085513B1 - Pressing unit - Google Patents

Pressing unit Download PDF

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Publication number
EP2085513B1
EP2085513B1 EP08168942A EP08168942A EP2085513B1 EP 2085513 B1 EP2085513 B1 EP 2085513B1 EP 08168942 A EP08168942 A EP 08168942A EP 08168942 A EP08168942 A EP 08168942A EP 2085513 B1 EP2085513 B1 EP 2085513B1
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Prior art keywords
pressure
pressing unit
unit according
pressing
shoe
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EP08168942A
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German (de)
French (fr)
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EP2085513A1 (en
Inventor
Christian Müller
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Voith Patent GmbH
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Voith Patent GmbH
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Priority to PL08168942T priority Critical patent/PL2085513T3/en
Publication of EP2085513A1 publication Critical patent/EP2085513A1/en
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    • 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

Abstract

The pressing unit has an axial running pressure shoe (1) which is supported at a carrier (7). The pressure shoe is adjusted opposite to the carrier in a press direction (9) in a linear manner. An active pressure unit is arranged between the pressure shoe and the carrier. Multiple transmission elements (4) are arranged to each other and are provided between the pressure unit and the pressure shoe. The transmission elements are dimensionally stable in press direction and are made of steel, aluminum or plastic. The pressure shoe is made of aluminum or aluminum alloy. An independent claim is included for a press roll with a rotating and flexible roll shell.

Description

Die Erfindung betrifft eine Anpresseinheit für eine Presswalze, die einen axial verlaufenden Anpressschuh aufweist, der an einem Träger gelagert ist, wobei der Anpressschuh gegenüber dem Träger in einer Pressrichtung linear verschiebbar und zwischen dem Anpressschuh und dem Träger zumindest eine aktive Druckeinheit angeordnet ist.The invention relates to a pressing unit for a press roll, which has an axially extending contact shoe, which is mounted on a support, wherein the contact shoe against the carrier in a pressing direction linearly displaceable and between the contact shoe and the carrier at least one active pressure unit is arranged.

Eine derartige Anpresseinheit ist aus WO-A-2005/042834 bekannt. Die Erfindung betrifft auch eine Presswalze mit einer erfindungsgemäßen Anpresseinheit und deren Einsatz.Such an Anpress unit is off WO-A-2005/042834 known. The invention also relates to a press roll with a Anpresseinheit invention and their use.

Dabei erstreckt sich der Anpressschuh im Allgemeinen über den gesamten Pressspalt zwischen der Presswalze und einer Gegenwalze. Temperaturunterschiede, der Dampfinnendruck von Walzen, eine ungleichmäßige Steifigkeit der Gegenwalze sowie der gewichtsbedingte Durchhang der Walzen führen zu einem ungleichmäßigen Linienkraftquerprofil im Pressspalt.In this case, the pressure shoe extends generally over the entire press nip between the press roll and a counter roll. Temperature differences, the internal pressure of the rolls, an uneven stiffness of the counter roll and the weight-related sag of the rolls lead to an uneven line cross-section in the press nip.

Daher wurden Lösungen entwickelt, bei denen der Anpressdruck in den beiden Randbereichen der Presswalze separat steuerbar ist, was jedoch nicht immer befriedigt und mit relativ viel Aufwand verbunden ist.Therefore, solutions were developed in which the contact pressure in the two edge regions of the press roll is separately controllable, but this is not always satisfied and associated with relatively much effort.

Darüber hinaus gibt es Lösungen den Anpressschuh flexibel zu gestalten und über mehrere Druckelemente anzupressen. Damit lässt sich zwar das Druckprofil im Pressspalt besser beeinflussen, jedoch sind bei den Übergängen zwischen den Druckelementen Drucksprünge zu beobachten.In addition, there are solutions to make the contact shoe flexible and press several printing elements. Although the pressure profile in the press nip can thus be better influenced, pressure jumps can be observed at the transitions between the pressure elements.

Die Aufgabe der Erfindung ist es daher, das mit einer derartigen Anpresseinheit erzeugbare Druckprofil mit möglichst geringem Aufwand zu verbessern.The object of the invention is therefore to improve the producible with such Anpresseinheit pressure profile with the least possible effort.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs 1 gelöst.According to the invention the object is achieved by the features of claim 1.

Dabei geben die Übertragungselemente dem Anpressschuh in Umfangsrichtung die erforderliche stabile Abstützung, während sie in axialer Richtung die Anpassbarkeit des Anpressschuhs an eine Gegenfläche kaum beeinträchtigen.In this case, the transmission elements give the contact shoe in the circumferential direction the required stable support, while they hardly affect the adaptability of the contact shoe to a counter surface in the axial direction.

Hierzu sollten die Übertragungselemente insbesondere in Pressrichtung formstabil sein und vorzugsweise aus Stahl, Aluminium oder einem Kunststoff bestehen.For this purpose, the transmission elements should be dimensionally stable, in particular in the pressing direction and preferably made of steel, aluminum or a plastic.

Um die relative Bewegbarkeit der Übertragungselemente zu gewährleisten, sind die Übertragungselemente in axialer Richtung zumindest geringfügig verschiebbar gelagert. Vorteilhafterweise haben die Übertragungselemente ein geringes Spiel zueinander.In order to ensure the relative mobility of the transmission elements, the transmission elements are mounted at least slightly displaceable in the axial direction. Advantageously, the transmission elements have a low mutual play.

Im Interesse einer möglichst guten Anpassung des Anpressschuhs an eine Gegenfläche, insbesondere eine Gegenwalze, und damit eines verbesserten Druckprofils in einem Pressspalt sollte der Anpressschuh relativ biegeweich sein.In the interests of the best possible adaptation of the contact shoe to a mating surface, in particular a counter-roller, and thus an improved pressure profile in a press nip the pressure shoe should be relatively flexible.

Hierfür ist es vorteilhaft, wenn der Anpressschuh in Pressrichtung eine durchschnittliche Dicke zwischen 5 und 30, vorzugsweise zwischen 15 und 20 mm hat und aus Aluminium oder einer Aluminiumlegierung besteht.For this purpose, it is advantageous if the pressure shoe in the pressing direction has an average thickness between 5 and 30, preferably between 15 and 20 mm and consists of aluminum or an aluminum alloy.

Um einen Pressspalt schnell und einfach wieder öffnen zu können, sollte der Anpressschuh über ein Rückholelement mit dem Träger gekoppelt sein, was mit Federelementen auf bekannte Weise leicht realisierbar ist.In order to be able to reopen a press nip quickly and easily, the press shoe should be coupled to the carrier via a return element, which can easily be achieved with spring elements in a known manner.

Zur Verminderung des Verschleißes der Oberflächen der Druckeinheit ist es von Vorteil, wenn zwischen den Übertragungselementen und der Druckeinheit zumindest eine biegeweiche, sich vorzugsweise axial über den gesamten Anpressschuh erstreckende Ausgleichsplatte vorhanden ist.To reduce the wear of the surfaces of the printing unit, it is advantageous if at least one flexible, preferably axially over the entire contact pressure shoe extending balance plate is present between the transmission elements and the printing unit.

Im Interesse einer Steuerung des Druckprofils axial entlang der Presswalze sollte die Druckeinheit von mehreren, axial nebeneinander angeordneten und vorzugsweise separat steuerbaren Druckelementen gebildet werden.In the interest of controlling the pressure profile axially along the pressure roller, the pressure unit should be formed by a plurality of axially juxtaposed and preferably separately controllable pressure elements.

Um dabei die Übergänge zwischen den Druckelementen möglichst allmählich zu gestalten, ist es von Vorteil, wenn die Anzahl der axial nebeneinander angeordneten Übertragungselemente größer ist als die Anzahl der axial nebeneinander angeordneten Druckelemente.In order to make the transitions between the printing elements as gradually as possible, it is advantageous if the number of axially juxtaposed transmission elements is greater than the number of axially juxtaposed pressure elements.

Für die Einstellung des Druckprofils in Umfangsrichtung der Presswalze ist es vorteilhaft, wenn die Druckeinheit von mehreren, in Umfangsrichtung der Presswalze nebeneinander angeordneten und vorzugsweise separat steuerbaren Druckelementen gebildet wird.For the adjustment of the pressure profile in the circumferential direction of the press roll, it is advantageous if the printing unit of several, in the circumferential direction of the press roll arranged side by side and preferably separately controllable pressure elements is formed.

Bei geringen Anforderungen an die Beeinflussbarkeit des Druckprofils im Pressspalt kann es jedoch auch genügen, wenn die Druckeinheit von nur einem Druckelement gebildet wird.With low requirements on the influenceability of the pressure profile in the press nip, however, it may also be sufficient if the printing unit is formed by only one printing element.

Vor allem von den erforderlichen Druckkräften im Pressspalt hängt die Gestaltung der Druckelemente ab.Above all, the pressure forces required in the press nip depends on the design of the printing elements.

Überwiegend wurden die Druckelemente bisher jeweils von einer, mit einem Druckfluid beaufschlagbaren Kolben-Zylinder-Anordnung gebildet.For the most part, the pressure elements have hitherto been formed in each case by a piston-cylinder arrangement which can be acted upon by a pressure fluid.

Insbesondere bei geringen Druckkräften, wie diese beispielsweise bei der Behandlung von Tissuebahnen erforderlich sind, kann es jedoch vorteilhaft sein, wenn die Druckelemente jeweils von einem flexiblen Druckkörper gebildet werden, der wenigstens einen Hohlraum aufweist, welcher zur Erzeugung der Presskraft über eine Volumenvergrößerung des Druckkörpers mit einem Druckfluid beaufschlagbar ist.In particular, at low compressive forces, as required for example in the treatment of tissue webs, it may be advantageous if the pressure elements are each formed by a flexible pressure body, which has at least one cavity, which for generating the pressing force via an increase in volume of the pressure hull with a pressurized fluid can be acted upon.

Zur Bildung eines verlängerten Pressspaltes mit einer zylindrischen Gegenwalze sollte der Anpressschuh in Umfangrichtung der Presswalze betrachtet eine konkave Pressfläche und die Presswalze einen rotierbaren und vorzugsweise flexiblen Walzenmantel besitzen.To form an extended press nip with a cylindrical mating roll, the press shoe should have a concave pressing surface in the circumferential direction of the press roll and the press roll should have a rotatable and preferably flexible roll mantle.

Verlängerte Pressspalte sind auch mit einer längeren Verweilzeit der Materialbahn im Pressspalt verbunden, was insbesondere bei der Glättung oder Entwässerung derselben von Vorteil sein kann.Prolonged press gaps are also associated with a longer residence time of the material web in the press nip, which may be advantageous in particular in the case of smoothing or dewatering the same.

Dabei drückt die Anpresseinheit den Walzenmantel zur Bildung eines Pressspaltes in Richtung einer Gegenwalze.The pressing unit presses the roll shell to form a press nip in the direction of a counter roll.

Bevorzugt wird die erfindungsgemäße Presswalze in einer Maschine zur Herstellung und/oder Veredlung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn eingesetzt.Preferably, the press roll according to the invention is used in a machine for producing and / or finishing a paper, board, tissue or another fibrous web.

Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt die Figur einen schematischen Teilquerschnitt durch eine Pressanordnung zur Entwässerung einer Faserstoffbahn 10, insbesondere einer Tissuebahn.The invention will be explained in more detail with reference to an exemplary embodiment. In the accompanying drawing, the figure shows a schematic partial cross section through a press arrangement for dewatering a fibrous web 10, in particular a tissue web.

Dabei wird der Pressspalt von einer Presswalze in Form einer Schuhpresswalze und einer zylindrischen Gegenwalze 3 gebildet.In this case, the press nip is formed by a press roll in the form of a shoe press roll and a cylindrical counter roll 3.

In und durch den Pressspalt läuft die Faserstoffbahn 10 hier beispielhaft mit einem unteren, wasseraufnehmenden Pressfilz 14. Nach dem Pressspalt bleibt die Faserstoffbahn 10 an der glatten Mantelfläche der Gegenwalze 3 haften und kann von dieser mit einem Kreppschaber wieder entfernt werden.In and through the press nip, the fibrous web 10 runs here by way of example with a lower, water-absorbing press felt 14. After the press nip, the fibrous web 10 adheres to the smooth lateral surface of the counter roll 3 and can be removed therefrom with a creping doctor.

Bei der Entwässerung von Tissuebahnen kommt es auf eine volumenschonende Entwässerung an, weshalb der Pressspalt verlängert ausgeführt ist.In the drainage of tissue webs, it is on a low-volume drainage, which is why the press nip is made extended.

Hierzu wird die Presswalze von einem flexiblen Walzenmantel 2 gebildet, der von einer Anpresseinheit mit einem Anpressschuh 1 in Pressrichtung 9 zur Gegenwalze 3 gedrückt wird. Dabei besitzt der Anpressschuh 1 eine konkave Pressfläche 12.For this purpose, the press roll is formed by a flexible roll shell 2, which is pressed by a Anpress unit with a pressure shoe 1 in the pressing direction 9 to the counter roll 3. In this case, the pressure shoe 1 has a concave pressing surface 12.

Die Anpresseinheit ist dabei an einem axial durch den rotierbaren Walzenmantel 2 verlaufenden, feststehenden Träger 7 gelagert.The pressing unit is mounted on an axially extending through the rotatable roll shell 2, stationary support 7.

Die Anpressung des Anpressschuhs 1 erfolgt hier über zwei in Umfangrichtung der Presswalze nebeneinander angeordnete und hinsichtlich des Anpressdrucks separat steuerbare Druckelemente 5,6.The contact pressure of the contact shoe 1 takes place here via two juxtaposed in the circumferential direction of the press roll and with respect to the contact pressure separately controllable pressure elements 5.6.

Diese Druckelemente 5,6 werden hier jeweils von einem flexiblen Druckkörper in Form eines axial verlaufenden Druckschlauches gebildet.These pressure elements 5,6 are each formed here by a flexible pressure body in the form of an axially extending pressure hose.

Dabei ist der Hohlraum 13 jedes Druckschlauches mit einer Druckfluidquelle verbunden, so dass dieser zur Erzeugung der Presskraft über eine Volumenvergrößerung des Druckschlauches mit einem Druckfluid, insbesondere Drucköl beaufschlagbar ist.In this case, the cavity 13 of each pressure hose is connected to a source of pressurized fluid, so that it can be acted upon by a volume increase of the pressure hose with a pressure fluid, in particular pressure oil to generate the pressing force.

Beschrieben sind derartige Druckelemente beispielsweise in der WO-A-2005/042834 . Das Druckelement kann zur Ermöglichung einer Volumenveränderung aber zum Beispiel statt der elastischen Wandungen auch faltbare, steife Wandungen besitzen.Described are such printing elements, for example in the WO-A-2005/042834 , The pressure element may have foldable, rigid walls instead of the elastic walls to allow a change in volume, for example.

Der Anpressschuh 1 ist biegeweich ausgeführt, aus Aluminium und hat eine Dicke in Pressrichtung 9 zwischen 15 und 20 mm. Diese Flexibilität erlaubt eine umfassende Anpassung an die Kontur der Gegenwalze 3.The pressure shoe 1 is made flexible, made of aluminum and has a thickness in the pressing direction 9 between 15 and 20 mm. This flexibility allows a comprehensive adaptation to the contour of the counter roll. 3

Bei Tissuemaschinen wird meist als Gegenwalze 3 ein relativ leicht verformbarer Kreppzylinder eingesetzt. Auf Grund der Verformung des Kreppzylinders bleibt der Pressspalt besonders im Randbereich nicht gerade, so dass hier unerwünschte Linienkraftabweichungen auftreten können.In tissue machines, a relatively easily deformable creping cylinder is usually used as counter-roller 3. Due to the deformation of the creping cylinder, the press nip does not remain straight, especially in the edge area, so that undesired line force deviations can occur here.

Der biegeweiche Anpressschuh 1 erlaubt über die Anpressung mit den beiden flexiblen Druckelementen 5,6 eine optimale Anpassung an die Form der Gegenwalze 3.The flexurally soft pressure shoe 1 allows an optimal adaptation to the shape of the counter roller 3 via the contact pressure with the two flexible pressure elements 5, 6.

Um im Bereich des Übergangs zwischen den beiden Druckelementen 5,6 nur geringe Druckabweichungen im Pressspalt zu erzeugen, befindet sich zwischen den Druckelementen 5,6 und dem Anpressschuh 1 eine Reihe von axial nebeneinander angeordneten Übertragungselementen 4.In order to produce only slight pressure deviations in the press nip in the region of the transition between the two pressure elements 5, 6, a row of axially adjacent transmission elements 4 is located between the pressure elements 5, 6 and the pressure shoe 1.

Diese Übertragungselemente 4 sind im Vergleich zum Druckschuh steif und aus Kunststoff oder Metall hergestellt.These transmission elements 4 are stiff compared to the pressure shoe and made of plastic or metal.

Durch die Formstabilität der Übertragungselemente 4 wird der Druckverlauf in Umfangsrichtung, insbesondere im Übergangsbereich zwischen den beiden Druckelementen 5,6 vergleichmäßigt.Due to the dimensional stability of the transmission elements 4, the pressure profile in the circumferential direction, in particular in the transition region between the two pressure elements 5,6 is made uniform.

Darüber hinaus sind die Übertragungselemente 4 in axialer Richtung in einer Führung geringfügig verschiebbar. Ein Spiel von ca. 0,2 mm zwischen den Übertragungselementen 4 erlaubt die unabhängige Bewegung der Übertragungselemente 4 in Pressrichtung 9.In addition, the transmission elements 4 are slightly displaceable in the axial direction in a guide. A clearance of about 0.2 mm between the transmission elements 4 allows the independent movement of the transmission elements 4 in the pressing direction. 9

Um bei Stillstand oder Havarie den Pressspalt schnell öffnen zu können, ist der Anpressschuh 1 über ein Rückholelement 8 in Form einer bekannten Rückholfeder mit dem Träger 7 verbunden.In order to open the press nip quickly at standstill or accident, the pressure shoe 1 is connected via a return element 8 in the form of a known return spring to the carrier 7.

Zur Schonung der Druckschläuche befindet sich zwischen den Übertragungselementen 4 und den Druckelementen 5,6 eine Ausgleichsplatte 11, die sich über den gesamten Anpressschuh 1 erstreckt.To protect the pressure hoses is located between the transmission elements 4 and the pressure elements 5.6 a compensating plate 11 which extends over the entire pressure shoe 1.

Claims (18)

  1. Pressing unit for a press roll, which has a pressure shoe (1) which runs axially and which is mounted on a support (7), the pressure shoe (1) being linearly displaceable with respect to the support (7) in a pressing direction (9), and at least one active pressure unit being arranged between the pressure shoe (1) and the support (7), characterized in that
    between the pressure unit and the pressure shoe (1) there are a plurality of transmission elements (4) arranged axially beside one another along the press roll, which are mounted such that they can be displaced at least slightly in the axial direction.
  2. Pressing unit according to Claim 1,
    characterized in that
    the transmission elements (4) are dimensionally stable, in particular in the pressing direction (9), and preferably consist of steel, aluminium or a plastic.
  3. Pressing unit according to one of the preceding claims,
    characterized in that
    the pressure shoe (1) is relatively flexible.
  4. Pressing unit according to one of the preceding claims,
    characterized in that
    the pressure shoe (1) has an average thickness between 5 and 30, preferably between 15 and 20 mm, in the pressing direction (9).
  5. Pressing unit according to one of the preceding claims,
    characterized in that
    the pressure shoe (1) consists of aluminium or an aluminium alloy.
  6. Pressing unit according to one of the preceding claims,
    characterized in that
    the pressure shoe (1) is coupled with the support (7) via a retraction element (8).
  7. Pressing unit according to one of the preceding claims,
    characterized in that
    between the transmission elements (4) and the pressure unit there is at least one flexible compensating plate (11), preferably extending axially over the entire pressure shoe (1).
  8. Pressing unit according to Claim 7,
    characterized in that
    the compensating plate (11) extends over the entire pressure shoe (1) in the circumferential direction of the press roll.
  9. Pressing unit according to one of the preceding claims,
    characterized in that
    the pressure unit is formed by a plurality of pressure elements (5, 6) arranged axially beside one another and preferably separately controllable.
  10. Pressing unit according to Claim 9,
    characterized in that
    the number of transmission elements (4) arranged axially beside one another is greater than the number of pressure elements (5, 6) arranged axially beside one another.
  11. Pressing unit according to one of the preceding claims,
    characterized in that
    the pressure unit is formed by a plurality of pressure elements (5, 6) arranged beside one another in the circumferential direction of the press roll and preferably separately controllable.
  12. Pressing unit according to one of Claims 1 to 8,
    characterized in that
    the pressure unit is formed by only one pressure element (5, 6).
  13. Pressing unit according to one of Claims 9 to 12,
    characterized in that
    the pressure elements (5, 6) are each formed by a piston-cylinder arrangement that can be pressurized with a pressurized fluid.
  14. Pressing unit according to one of Claims 9 to 12,
    characterized in that
    the pressure elements (5, 6) are each formed by a flexible pressurized body which has at least one cavity (13) which, in order to produce the pressing force via an enlargement of the volume of the pressurized body, can be pressurized with a pressurized fluid.
  15. Pressing unit according to one of the preceding claims,
    characterized in that
    as viewed in the circumferential direction of the press roll, the pressure shoe (1) has a concave pressing surface (12).
  16. Press roll having a pressing unit according to one of Claims 1 to 15,
    characterized in that
    the press roll has a roll shell (2) that can be rotated and is preferably flexible.
  17. Press roll according to Claim 16 having a pressing unit according to one of Claims 1 to 15,
    characterized in that
    the pressing unit presses the roll shell (2) in the direction of a mating roll (3) in order to form a press nip.
  18. Use of the press roll according to Claim 16 or 17 in a machine for preparing and/or finishing a web of paper, card, tissue or another fibre.
EP08168942A 2008-01-31 2008-11-12 Pressing unit Active EP2085513B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08168942T PL2085513T3 (en) 2008-01-31 2008-11-12 Pressing unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008000199A DE102008000199A1 (en) 2008-01-31 2008-01-31 pressing unit

Publications (2)

Publication Number Publication Date
EP2085513A1 EP2085513A1 (en) 2009-08-05
EP2085513B1 true EP2085513B1 (en) 2011-09-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08168942A Active EP2085513B1 (en) 2008-01-31 2008-11-12 Pressing unit

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EP (1) EP2085513B1 (en)
AT (1) ATE526450T1 (en)
DE (1) DE102008000199A1 (en)
PL (1) PL2085513T3 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2602387A1 (en) 2011-12-07 2013-06-12 Metso Paper Sweden AB A paper making machine, an extended nip roll and a method of producing tissue paper
US9181655B2 (en) 2012-04-19 2015-11-10 Valmet Ab Extended nip roll, an extended nip press making use of the extended nip roll, a papermaking machine and a method of operating an extended nip press
US9702084B2 (en) 2014-01-20 2017-07-11 Valmet S.P.A. Process and a machine for making a tissue paper web
US10808359B2 (en) 2016-12-19 2020-10-20 Valmet Aktiebolag Method for making tissue paper
US11220785B2 (en) 2018-10-12 2022-01-11 Valmet Aktiebolag Tissue paper making machine and a method of operating a tissue paper making machine
WO2022084403A1 (en) 2020-10-21 2022-04-28 Valmet Aktiebolag A yankee drying cylinder and a tissue paper making machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008042087A1 (en) 2008-09-15 2010-03-18 Voith Patent Gmbh Pressing unit for a paper, board or tissue machine
EP2675949B1 (en) 2011-02-18 2016-04-13 Valmet Aktiebolag Press device with an extended nip, paper making machine and method of operating a press device
SE536202C2 (en) 2011-07-12 2013-06-25 Metso Paper Sweden Ab Process and machine for manufacturing a textured fibrous web of paper
DE102014208159A1 (en) 2014-04-30 2015-11-05 Voith Patent Gmbh pressing unit
CN108166303A (en) * 2017-12-22 2018-06-15 江苏华东造纸机械有限公司 Shoe press loading device
SE542841C2 (en) 2018-04-19 2020-07-14 Valmet Oy Method and a machine for producing a tissue web

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6045658A (en) * 1998-06-03 2000-04-04 Beloit Technologies, Inc. Extended nip press apparatus
FI114031B (en) * 2003-03-04 2004-07-30 Metso Paper Inc Method of pressing paper web and paper web press device
DE10351294A1 (en) 2003-10-31 2005-06-02 Voith Paper Patent Gmbh pressing device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2602387A1 (en) 2011-12-07 2013-06-12 Metso Paper Sweden AB A paper making machine, an extended nip roll and a method of producing tissue paper
US8911594B2 (en) 2011-12-07 2014-12-16 Valmet Ab Paper making machine, an extended nip roll and a method of producing tissue paper
US9057157B2 (en) 2011-12-07 2015-06-16 Valmet Ab Paper making machine, an extended nip roll and a method of producing tissue paper
US9410287B2 (en) 2011-12-07 2016-08-09 Valmet Aktiebolag Paper making machine, an extended nip roll and a method of producing tissue paper
US9181655B2 (en) 2012-04-19 2015-11-10 Valmet Ab Extended nip roll, an extended nip press making use of the extended nip roll, a papermaking machine and a method of operating an extended nip press
US9702084B2 (en) 2014-01-20 2017-07-11 Valmet S.P.A. Process and a machine for making a tissue paper web
US10808359B2 (en) 2016-12-19 2020-10-20 Valmet Aktiebolag Method for making tissue paper
US11220785B2 (en) 2018-10-12 2022-01-11 Valmet Aktiebolag Tissue paper making machine and a method of operating a tissue paper making machine
WO2022084403A1 (en) 2020-10-21 2022-04-28 Valmet Aktiebolag A yankee drying cylinder and a tissue paper making machine

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Publication number Publication date
DE102008000199A1 (en) 2009-08-06
ATE526450T1 (en) 2011-10-15
PL2085513T3 (en) 2012-02-29
EP2085513A1 (en) 2009-08-05

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