EP1880055B1 - Extended nip press - Google Patents

Extended nip press Download PDF

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Publication number
EP1880055B1
EP1880055B1 EP06708764A EP06708764A EP1880055B1 EP 1880055 B1 EP1880055 B1 EP 1880055B1 EP 06708764 A EP06708764 A EP 06708764A EP 06708764 A EP06708764 A EP 06708764A EP 1880055 B1 EP1880055 B1 EP 1880055B1
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EP
European Patent Office
Prior art keywords
roll
press
diameter
nip
extended nip
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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.)
Revoked
Application number
EP06708764A
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German (de)
French (fr)
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EP1880055A1 (en
Inventor
Andreas Meschenmoser
Thomas Augscheller
Peter Mirsberger
Andreas SCHÜTTE
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Voith Patent GmbH
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Voith Patent GmbH
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Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1880055A1 publication Critical patent/EP1880055A1/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

Definitions

  • the invention relates to an extended-nip press for dewatering a paper, board, tissue or other fibrous web in a machine for producing the same, consisting of a press roll with a flexible roll shell and a pressing element with concave pressing surface, which the roll shell to form an extended press nip to a cylindrical mating roll, wherein the diameter of the press roll is less than 1 m, the diameter of the mating roll is less than 1.4 m, and the ratio between the length of the press surface in the web running direction and the diameter of the press roll is greater than 0.08.
  • the object of the invention is therefore to reduce the burden of the flexible roll shell with the smallest possible space requirement of the press arrangement.
  • this object is achieved in that the press roll projects beyond the counter roll at the end of the roll by at least 25 cm.
  • the diameter of the counter roll should not exceed a diameter of 1.4 m because of the space required and the weight. He should, however be large enough that a sufficient load capacity without excessive deflection of the same is guaranteed.
  • the flexible roll shell In the transition region from the concave pressing surface to the cylindrical clamping of the roll shell at the ends of the press roll, the flexible roll shell is subjected to stress due to deformation. This load is reduced considerably by the relatively strong projection of the roll shell.
  • the load on the roll shell of the press roll as a result of the deformation in the press nip area is further reduced if the diameter of the press roll is smaller than the diameter of the counter roll, as a result results in a lower convex curvature of the press nip in the web running direction.
  • the average pressing pressure in the press nip should be greater than 2 MPa, preferably greater than 3 MPa and in particular greater than 4 MPa.
  • the pressing surface in the web running direction has a length of more than 80 mm, preferably more than 100 mm.
  • the pressing surface in the web running direction has a length of more than 140 mm, preferably more than 160 mm.
  • the advantages of the invention are obtained, above all, in presses in which the width of the press roll is less than 7.5 m, preferably less than 6.8 m and in particular less than 5.5 m ,
  • the reduced load on the roll mantle results in the press roll, i. her roll mantle only only at most 1.4 m, preferably at most 1 m wider than the counter roll, i. whose lateral surface must be.
  • the roll mantle of the press roll should project axially beyond the mantle surface of the mating roll by at least 300 mm, preferably by at least 350 mm.
  • the extended press nip for dewatering a fibrous web 1, in particular a paper web in a paper machine, is formed by a cylindrical mating roll 5 and a press roll 4 arranged above it.
  • the roller axles are mounted on both sides in a roller frame 10.
  • the fibrous web 1 passes through the press nip here by way of example together with a respective dewatering belt 2, 3 in the form of a press felt on both sides.
  • These Dewatering belts 2, 3 take up a large part of the water pressed in the press nip from the fibrous web 1 and transport it out of the press nip.
  • the press roll 4 has a flexible roll shell 9 made of fiber-reinforced plastic, which is pressed by a hydraulic pressing element 6 with a concave pressing surface to the counter roll 5.
  • the pressing member 6 is formed as an axially extending press shoe.
  • the counter roll 5 has a diameter of 1 m.
  • the pressing surface of the pressing element 6 has in the web running direction 11 has a length L of about 160 mm, so that the ratio between this length L and the diameter of the press roll 4 is 0.2.
  • the thus-dimensioned extended-nip press is a very compact press unit and is therefore ideal for the replacement of conventional press units with a short press nip.
  • the axis of rotation 8 of the roll shell 9 of the press roll 4 is offset by an amount a against the web running direction 11 to the current through the support of the press roll 4 and the backing roll 5 press plane.
  • the pressure at the inlet of the press nip should gradually rise to a maximum and suddenly drop from there to the outlet.
  • the width of the press roll 4 is about 6.5 m, which has a low deflection of the backing roll 5 result.
  • the roll shell 9 Since the ends of the flexible roll shell 9 of the press roll 4 are supported by cylindrical side windows 12, the roll shell 9 requires an in FIG. 2 illustrated transition region from the concave shape of the press nip to the circular shape of the side window 12th
  • This transition is also referred to as guy length I 1 , I 2 and corresponds to the length by which the roll shell 9 of the press roll 4 extends beyond the lateral surface of the counter roll 5 axially.
  • This guy length I 1 , I 2 can be the same or different lengths.
  • the press roll 4 projects beyond the counter roll 5 on both sides by the same length I 1 , I 2 of approximately 30 cm, so that the press roll 4 is 0.6 m longer than the counter roll 5.

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  • Paper (AREA)
  • Sealing Material Composition (AREA)

Abstract

The invention relates to a long nip press for dewatering a web of paper, cardboard, tissue or other fibrous material (1) in a machine for producing and/or upgrading the same. Said press comprises a press roll (4) with a flexible roll sleeve (9) and a press element (6) with a concave press surface which forces the roll sleeve (9) towards a cylindrical mating roll (5) for producing a long press nip, the diameter of the press roll (4) being less than 1 m. The aim of the invention is to reduce the load on the flexible roll sleeve (9). For this purpose, the diameter of the mating roll (5) is less than 1.4 m and the ratio between the length (L) of the press surface in the web transport direction (11) and the diameter of the press roll (4) is more than 0.08 and/or the press roll (4) projects over the mating roll (5) by at least 25 cm each at the roll end.

Description

Die Erfindung betrifft eine Langspaltpresse zur Entwässerung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung derselben, bestehend aus einer Presswalze mit einem flexiblen Walzenmantel und einem Presselement mit konkaver Pressfläche, welches den Walzenmantel zur Bildung eines verlängerten Pressspaltes zu einer zylindrischen Gegenwalze drückt, wobei der Durchmesser der Presswalze unter 1 m liegt, der Durchmesser der Gegenwalze kleiner als 1,4 m und das Verhältnis zwischen der Länge der Pressfläche in Bahnlaufrichtung und dem Durchmesser der Presswalze größer als 0,08 ist.The invention relates to an extended-nip press for dewatering a paper, board, tissue or other fibrous web in a machine for producing the same, consisting of a press roll with a flexible roll shell and a pressing element with concave pressing surface, which the roll shell to form an extended press nip to a cylindrical mating roll, wherein the diameter of the press roll is less than 1 m, the diameter of the mating roll is less than 1.4 m, and the ratio between the length of the press surface in the web running direction and the diameter of the press roll is greater than 0.08.

Derartige beispielsweise in der WO 2004/088229 beschriebene Pressen kommen oft bei Umbauten zum Einsatz und können dabei wegen des geringen Raumbedarfs konventionelle Pressen ersetzen.Such as in the WO 2004/088229 Presses described are often used in conversions and can replace conventional presses because of the small space required.

Langspaltpressen erlauben wegen der längeren Verweilzeit im Pressspalt eine intensive und dennoch schonende Entwässerung der Faserstoffbahn.Long-nip presses allow intensive and yet gentle dewatering of the fibrous web due to the longer dwell time in the press nip.

Jedoch steht dem die große Belastung des flexiblen Walzenmantels im Pressspaltbereich infolge Verformung, insbesondere bei relativ kleinen Walzendurchmessern entgegen. Außerdem ist der Pressimpuls und damit auch die Entwässerungsleistung begrenzt.However, this is counteracted by the large load on the flexible roll shell in the press nip area as a result of deformation, in particular with relatively small roll diameters. In addition, the pressing pulse and thus the drainage performance is limited.

Die Aufgabe der Erfindung ist es daher, bei möglichst geringem Raumbedarf der Pressanordnung die Belastung des flexiblen Walzenmantels zu vermindern.The object of the invention is therefore to reduce the burden of the flexible roll shell with the smallest possible space requirement of the press arrangement.

Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass die Presswalze die Gegenwalze am Walzenende um jeweils zumindest 25 cm überragt.According to the invention, this object is achieved in that the press roll projects beyond the counter roll at the end of the roll by at least 25 cm.

Der Durchmesser der Gegenwalze sollte wegen des Raumbedarfs und des Gewichtes einen Durchmesser von 1,4 m nicht überschreiten. Er sollte jedoch so groß sein, dass eine ausreichende Belastbarkeit ohne eine zu starke Durchbiegung derselben gewährleistet ist.The diameter of the counter roll should not exceed a diameter of 1.4 m because of the space required and the weight. He should, however be large enough that a sufficient load capacity without excessive deflection of the same is guaranteed.

Der dennoch mögliche, relativ große Durchmesser der Gegenwalze hat aber auch eine verminderte Krümmung der Pressfläche und damit auch eine geringere Belastung des flexiblen Walzenmantels zur Folge. Dies erlaubt es, die Pressfläche des Presselemente soweit zu vergrößern, dass die Realisierung höherer Pressimpulse möglich wird, ohne einen größeren Durchmesser des Walzenmantels erforderlich zu machen.The still possible, relatively large diameter of the counter roll but also has a reduced curvature of the pressing surface and thus a lower load on the flexible roll shell result. This makes it possible to increase the pressing surface of the pressing elements so far that the realization of higher pressing pulses is possible without making a larger diameter of the roll shell required.

Im Übergangsbereich von der konkaven Pressfläche zu der zylindrischen Einspannung des Walzenmantels an den Enden der Presswalze kommt es zu einer Belastung des flexiblen Walzenmantels infolge Verformung. Diese Belastung vermindert sich durch das relativ starke Überragen des Walzenmantels erheblich.In the transition region from the concave pressing surface to the cylindrical clamping of the roll shell at the ends of the press roll, the flexible roll shell is subjected to stress due to deformation. This load is reduced considerably by the relatively strong projection of the roll shell.

Durch die längere Pressfläche und die sich damit ergebende längere Verweilzeit der Faserstoffbahn im Pressspalt wird auch bei höheren Pressimpulsen eine volumenschonende Entwässerung der Faserstoffbahn gewährleistet.Due to the longer pressing surface and the resulting longer residence time of the fibrous web in the press nip, a volume-saving dewatering of the fibrous web is ensured even at higher press pulses.

Die Belastung des Walzenmantels der Presswalze infolge der Verformung im Pressspaltbereich wird noch weiter vermindert, wenn der Durchmesser der Presswalze kleiner als der Durchmesser der Gegenwalze ist, da sich im Ergebnis eine geringere konvexe Krümmung des Pressspaltes in Bahnlaufrichtung ergibt.The load on the roll shell of the press roll as a result of the deformation in the press nip area is further reduced if the diameter of the press roll is smaller than the diameter of the counter roll, as a result results in a lower convex curvature of the press nip in the web running direction.

Um die sich hierdurch ergebenden Möglichkeiten im Verhältnis zum Aufwand optimal nutzen zu können, sollte der mittlere Pressdruck im Pressspalt größer als 2 MPa, vorzugsweise größer als 3 MPa und insbesondere größer als 4 MPa sein.In order to make optimal use of the resulting possibilities in relation to the effort, the average pressing pressure in the press nip should be greater than 2 MPa, preferably greater than 3 MPa and in particular greater than 4 MPa.

Dabei hat es sich in Abhängigkeit von den Einsatzbedingungen, insbesondere den Anforderungen, die durch die zu entwässernde Faserstoffbahn gestellt werden, als vorteilhaft erwiesen, wenn die Pressfläche in Bahnlaufrichtung eine Länge von mehr als 80 mm, vorzugsweise mehr als 100 mm aufweist.Depending on the conditions of use, in particular the requirements imposed by the fibrous web to be dewatered, it has proved to be advantageous if the pressing surface in the web running direction has a length of more than 80 mm, preferably more than 100 mm.

Für eine Realisierung von besonders langen Pressflächen und somit auch langen Verweilzeiten kann es insbesondere bei hohen Maschinengeschwindigkeiten und/oder zur Volumenschonung von Vorteil sein, wenn die Pressfläche in Bahnlaufrichtung eine Länge von mehr als 140 mm, vorzugsweise mehr als 160 mm aufweist.For a realization of particularly long pressing surfaces and thus also long residence times, it may be advantageous, particularly at high machine speeds and / or for volume conservation, if the pressing surface in the web running direction has a length of more than 140 mm, preferably more than 160 mm.

Wegen der hohen mittleren Pressdrücke und den kleinen Walzendurchmessern sind die Vorteile der Erfindung vor allem bei Pressen zu erhalten, in denen die Breite der Presswalze weniger als 7,5 m, vorzugsweise weniger als 6,8 m und insbesondere weniger als 5,5 m beträgt.Because of the high average compacting pressures and the small roll diameters, the advantages of the invention are obtained, above all, in presses in which the width of the press roll is less than 7.5 m, preferably less than 6.8 m and in particular less than 5.5 m ,

Die verminderte Belastung des Walzenmantels führt dazu, dass die Presswalze, d.h. ihr Walzenmantel nur noch lediglich höchstens 1,4 m, vorzugsweise höchstens 1 m breiter als die Gegenwalze, d.h. deren Mantelfläche sein muss.The reduced load on the roll mantle results in the press roll, i. her roll mantle only only at most 1.4 m, preferably at most 1 m wider than the counter roll, i. whose lateral surface must be.

Um jedoch die Belastung des Walzenmantels zu begrenzen, sollte der Walzenmantel der Presswalze die Mantelfläche der Gegenwalze axial jeweils um mindestens 300 mm, vorzugsweise um mindestens 350 mm überragen.However, in order to limit the load on the roll mantle, the roll mantle of the press roll should project axially beyond the mantle surface of the mating roll by at least 300 mm, preferably by at least 350 mm.

Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt:

Figur 1:
einen schematischen Querschnitt durch eine Langspaltpresse,
Figur 2:
eine Seitenansicht der Langspaltpresse und
Figur 3:
eine Darstellung des Pressdruckverlaufs im Langspalt.
The invention will be explained in more detail with reference to an exemplary embodiment. In the attached drawing shows:
FIG. 1:
a schematic cross section through an extended nip press,
FIG. 2:
a side view of the extended nip press and
FIG. 3:
a representation of the pressure pressure curve in the extended nip.

Gemäß Figur 1 wird der verlängerte Pressspalt zur Entwässerung einer Faserstoffbahn 1, insbesondere einer Papierbahn in einer Papiermaschine von einer zylindrischen Gegenwalze 5 und einer darüber angeordneten Presswalze 4 gebildet. Dabei sind die Walzenachsen beidseitig in einer Walzenstuhlung 10 gelagert.According to FIG. 1 the extended press nip for dewatering a fibrous web 1, in particular a paper web in a paper machine, is formed by a cylindrical mating roll 5 and a press roll 4 arranged above it. The roller axles are mounted on both sides in a roller frame 10.

Die Faserstoffbahn 1 durchläuft den Pressspalt hier beispielhaft gemeinsam mit beidseitig je einem Entwässerungsband 2,3 in Form eines Pressfilzes. Diese Entwässerungsbänder 2,3 nehmen einen großen Teil des im Pressspalt aus der Faserstoffbahn 1 gepressten Wassers auf und transportieren dieses aus dem Pressspalt.The fibrous web 1 passes through the press nip here by way of example together with a respective dewatering belt 2, 3 in the form of a press felt on both sides. These Dewatering belts 2, 3 take up a large part of the water pressed in the press nip from the fibrous web 1 and transport it out of the press nip.

Zur Bildung eines verlängerten Pressspaltes besitzt die Presswalze 4 einen flexiblen Walzenmantel 9 aus faserverstärktem Kunststoff, welcher von einem hydraulischen Presselement 6 mit konkaver Pressfläche zur Gegenwalze 5 gedrückt wird.To form an extended press nip, the press roll 4 has a flexible roll shell 9 made of fiber-reinforced plastic, which is pressed by a hydraulic pressing element 6 with a concave pressing surface to the counter roll 5.

Hierbei ist das Presselement 6 als sich axial erstreckender Pressschuh ausgebildet.Here, the pressing member 6 is formed as an axially extending press shoe.

Wegen des langen Pressspaltes und der damit verbundenen längeren Verweilzeit der Faserstoffbahn 1 im Pressspalt ist eine intensive, aber dennoch schonende Entwässerung selbst bei hohen Maschinengeschwindigkeiten möglich.Because of the long press nip and the associated longer residence time of the fibrous web 1 in the press nip an intensive, yet gentle drainage is possible even at high machine speeds.

Während der Durchmesser der Presswalze hier beispielhaft bei 0,8 m liegt, hat die Gegenwalze 5 einen Durchmesser von 1 m.While the diameter of the press roll is here by way of example 0.8 m, the counter roll 5 has a diameter of 1 m.

Die Pressfläche des Presselementes 6 hat in Bahnlaufrichtung 11 eine Länge L von ca. 160 mm, so dass das Verhältnis zwischen dieser Länge L und dem Durchmesser der Presswalze 4 bei 0,2 liegt.The pressing surface of the pressing element 6 has in the web running direction 11 has a length L of about 160 mm, so that the ratio between this length L and the diameter of the press roll 4 is 0.2.

Die derart dimensionierte Langspaltpresse stellt eine sehr kompakte Presseinheit dar und eignet sich dadurch hervorragend für den Ersatz konventioneller Presseinheiten mit kurzem Pressspalt.The thus-dimensioned extended-nip press is a very compact press unit and is therefore ideal for the replacement of conventional press units with a short press nip.

Wegen des größeren Durchmessers der Gegenwalze 5 können relativ lange Pressschuhe zum Einsatz kommen, ohne große Presswalzen 4 erforderlich zu machen.Because of the larger diameter of the counter roll 5 relatively long press shoes can be used without making large press rolls 4 required.

Dies wiederum erlaubt es größere Pressimpulse zu erzeugen, wobei hier der mittlere Pressdruck p im Pressspalt größer 4 MPa ist.This in turn makes it possible to produce larger pressing pulses, in which case the average pressing pressure p in the press nip is greater than 4 MPa.

Wie in Figur 1 zu sehen, ist die Rotationsachse 8 des Walzenmantels 9 der Presswalze 4 um einen Betrag a entgegen der Bahnlaufrichtung 11 zu der durch die Träger der Presswalze 4 und der Gegenwalze 5 laufenden Pressebene 7 versetzt angeordnet.As in FIG. 1 can be seen, the axis of rotation 8 of the roll shell 9 of the press roll 4 is offset by an amount a against the web running direction 11 to the current through the support of the press roll 4 and the backing roll 5 press plane.

Dieses Versetzen der Pressfläche führt zu einem asymmetrischen Pressdruckverlauf.This displacement of the pressing surface leads to an asymmetric pressure pressure curve.

Gemäß Figur 3 soll der Pressdruck am Einlauf des Pressspaltes allmählich bis zu einem Maximum ansteigen und von dort bis zum Auslauf plötzlich abfallen.According to FIG. 3 the pressure at the inlet of the press nip should gradually rise to a maximum and suddenly drop from there to the outlet.

Die Breite der Presswalze 4 beträgt etwa 6,5 m, was eine geringe Durchbiegung der Gegenwalze 5 zur Folge hat.The width of the press roll 4 is about 6.5 m, which has a low deflection of the backing roll 5 result.

Da die Enden des flexiblen Walzenmantels 9 der Presswalze 4 von zylindrischen Seitenscheiben 12 getragen werden, benötigt der Walzenmantel 9 einen in Figur 2 dargestellten Übergangsbereich von der konkaven Form des Pressspaltes zur Kreisform der Seitenscheibe 12.Since the ends of the flexible roll shell 9 of the press roll 4 are supported by cylindrical side windows 12, the roll shell 9 requires an in FIG. 2 illustrated transition region from the concave shape of the press nip to the circular shape of the side window 12th

Dieser Übergang wird auch als Abspannlänge I1, I2 bezeichnet und entspricht der Länge, um die der Walzenmantel 9 der Presswalze 4 die Mantelfläche der Gegenwalze 5 axial überragt.This transition is also referred to as guy length I 1 , I 2 and corresponds to the length by which the roll shell 9 of the press roll 4 extends beyond the lateral surface of the counter roll 5 axially.

Diese Abspannlänge I1, I2 kann gleich oder unterschiedlich lang sein.This guy length I 1 , I 2 can be the same or different lengths.

Hier überragt die Presswalze 4 die Gegenwalze 5 beidseitig um die gleiche Länge I1, I2 von ca. 30 cm, so dass die Presswalze 4 0,6 m länger als die Gegenwalze 5 ist.Here, the press roll 4 projects beyond the counter roll 5 on both sides by the same length I 1 , I 2 of approximately 30 cm, so that the press roll 4 is 0.6 m longer than the counter roll 5.

Claims (8)

  1. Extended nip press for dewatering a paper, board, tissue or another fibrous web (1) in a machine for producing the same, comprising a press roll (4) having a flexible roll shell (9) and a pressing element (6) having a concave pressing surface, which presses the roll shell (9) to form an extended press nip in relation to a cylindrical opposing roll (5), the diameter of the press roll (4) lying below 1 m and the diameter of the opposing roll (5) is less than 1.4 m and the ratio between the length (L) of the pressing surface in the web running direction (11) and the diameter of the press roll (4) is more than 0.08, characterized in that the roll shell of the press roll (4) projects beyond the circumferential surface of the opposing roll (5) on the roll end in each case by at least 25 cm.
  2. Extended nip press according to Claim 1, characterized in that the diameter of the press roll (4) is smaller than the diameter of the opposing roll (5).
  3. Extended nip press according to Claim 1 or 2, characterized in that the average pressing pressure ρ in the press nip is greater than 2 MPa, preferably greater than 3 MPa and in particular greater than 4 MPa.
  4. Extended nip press according to one of the preceding claims, characterized in that the pressing surface in the web running direction (11) has a length (L) of more than 80 mm, preferably of more than 100 mm.
  5. Extended nip press according to one of the preceding claims, characterized in that the pressing surface in the web running direction (11) has a length (L) of more than 140 mm, preferably of more than 160 mm.
  6. Extended nip press according to one of the preceding claims, characterized in that the width of the press roll (4) is less than 7.5 m, preferably less than 6.8 m and in particular less than 5.5 m.
  7. Extended nip press according to one of the preceding claims, characterized in that the roll shell of the press roll (4) is at most 1.4 m, preferably at most 1 m, wider than the circumferential surface of the opposing roll (5).
  8. Extended nip press according to Claim 7, characterized in that the roll shell of the press roll (4) projects beyond the circumferential surface of the opposing roll (5) on the roll end in each case by at least 30 cm, preferably at least 35 cm.
EP06708764A 2005-04-30 2006-03-15 Extended nip press Revoked EP1880055B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005020218A DE102005020218A1 (en) 2005-04-30 2005-04-30 Long nip press
PCT/EP2006/060719 WO2006117260A1 (en) 2005-04-30 2006-03-15 Long nip press

Publications (2)

Publication Number Publication Date
EP1880055A1 EP1880055A1 (en) 2008-01-23
EP1880055B1 true EP1880055B1 (en) 2008-12-03

Family

ID=36177817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06708764A Revoked EP1880055B1 (en) 2005-04-30 2006-03-15 Extended nip press

Country Status (5)

Country Link
EP (1) EP1880055B1 (en)
JP (1) JP4935809B2 (en)
AT (1) ATE416273T1 (en)
DE (2) DE102005020218A1 (en)
WO (1) WO2006117260A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19702575A1 (en) * 1997-01-24 1998-07-30 Voith Sulzer Papiermasch Gmbh Machine for the production of a fibrous web
DE19705360A1 (en) * 1997-02-12 1998-08-13 Voith Sulzer Papiermasch Gmbh Press device for dewatering or smoothing a fibrous web
US6752908B2 (en) * 2001-06-01 2004-06-22 Stowe Woodward, Llc Shoe press belt with system for detecting operational parameters
EP1608925B1 (en) * 2003-03-31 2011-09-14 PMT Italia S.p.A. A press apparatus for removing water from a web
DE102004028480A1 (en) * 2004-06-11 2006-01-05 Eduard Küsters Maschinenfabrik GmbH & Co. KG Apparatus for forming an extended nip

Also Published As

Publication number Publication date
ATE416273T1 (en) 2008-12-15
EP1880055A1 (en) 2008-01-23
DE502006002264D1 (en) 2009-01-15
DE102005020218A1 (en) 2006-11-09
WO2006117260A1 (en) 2006-11-09
JP4935809B2 (en) 2012-05-23
JP2008540851A (en) 2008-11-20

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