EP1893805B1 - Long nip press - Google Patents

Long nip press Download PDF

Info

Publication number
EP1893805B1
EP1893805B1 EP06743206A EP06743206A EP1893805B1 EP 1893805 B1 EP1893805 B1 EP 1893805B1 EP 06743206 A EP06743206 A EP 06743206A EP 06743206 A EP06743206 A EP 06743206A EP 1893805 B1 EP1893805 B1 EP 1893805B1
Authority
EP
European Patent Office
Prior art keywords
roll
press
less
diameter
nip
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.)
Not-in-force
Application number
EP06743206A
Other languages
German (de)
French (fr)
Other versions
EP1893805A1 (en
Inventor
Andreas Meschenmoser
Thomas Augscheller
Peter Mirsberger
Andreas SCHÜTTE
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 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36499333&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1893805(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to PL06743206T priority Critical patent/PL1893805T3/en
Publication of EP1893805A1 publication Critical patent/EP1893805A1/en
Application granted granted Critical
Publication of EP1893805B1 publication Critical patent/EP1893805B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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

Definitions

  • the invention relates to an extended-nip press for dewatering a paper, board, tissue or other fibrous web in a machine for producing and / or finishing the same, consisting of a press roll with a flexible roll shell and a pressing element with concave pressing surface, which covers the roll shell Forming an extended press nip presses to a cylindrical counter roll, wherein the diameter of the press roll is less than 1 m.
  • Such presses are often used in conversions and can replace conventional presses because of the small space requirement.
  • 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 diameter of the counter roll is more than 0.8 m and the press roll is at most 0.6 m wider than the counter roll and the diameter of the press roll is smaller than the diameter of the counter roll.
  • the relatively large diameter of the counter roll ensures sufficient load capacity without excessive deflection of the same.
  • the relatively large diameter of the counter roll 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.
  • the load on the roll shell of the press roll as a result of the deformation in the press nip area is further reduced by the fact that 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 up to 80 mm, preferably of up to 100 mm and in particular of to 140 mm.
  • the pressing surface in the web running direction has a length of up to 160 mm, preferably up to 190 mm and in particular up to 230 mm.
  • the advantages of the invention are obtained especially 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 press roll i. its roll mantle may only be at most 0.5 m, preferably at most 0.4 m wider than the mating roll, i. whose lateral surface must be.
  • 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 drainage 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 mantle 9 Since the ends of the flexible roll mantle 9 of the press roll 4 are supported by cylindrical side windows 12, the roll mantle 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 25 cm, so that the press roll 4 is 0.5 m longer than the counter roll 5.

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 and the space required. For this purpose, the diameter of the mating roll (5) is more than 0.8 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 less than 0.25 and/or the press roll (4) is wider than the mating roll (5) by not more than 0.6 m.

Description

Die Erfindung betrifft eine Langspaltpresse zur Entwässerung einer Papier-, Karton-, Tissue- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung und/oder Veredlung 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.The invention relates to an extended-nip press for dewatering a paper, board, tissue or other fibrous web in a machine for producing and / or finishing the same, consisting of a press roll with a flexible roll shell and a pressing element with concave pressing surface, which covers the roll shell Forming an extended press nip presses to a cylindrical counter roll, wherein the diameter of the press roll is less than 1 m.

Derartige Pressen (vgl. WO-A-2004/088229 ) kommen oft bei Umbauten zum Einsatz und können dabei wegen des geringen Raumbedarfs konventionelle Pressen ersetzen.Such presses (see. WO-A-2004/088229 ) are often used in conversions and can replace conventional presses because of the small space requirement.

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 der Durchmesser der Gegenwalze mehr als 0,8 m beträgt und die Presswalze höchstens 0,6 m breiter als die Gegenwalze ist und der Durchmesser der Presswalze kleiner als der Durchmesser der Gegenwalze ist.According to the invention, this object is achieved in that the diameter of the counter roll is more than 0.8 m and the press roll is at most 0.6 m wider than the counter roll and the diameter of the press roll is smaller than the diameter of the counter roll.

Dabei sorgt der relativ große Durchmesser der Gegenwalze für eine ausreichende Belastbarkeit ohne eine zu starke Durchbiegung derselben.In this case, the relatively large diameter of the counter roll ensures sufficient load capacity without excessive deflection of the same.

Außerdem hat der relativ große Durchmesser der Gegenwalze eine verminderte Krümmung der Pressfläche und damit auch eine geringere Belastung des flexiblen Walzenmantels zur Folge. Dies erlaubt es, die Pressfläche der Presselemente soweit zu vergrößern, dass die Realisierung höherer Pressimpulse möglich wird, ohne einen größeren Durchmesser des Walzenmantels erforderlich zu machen. Dem sind jedoch Grenzen gesetzt.In addition, the relatively large diameter of the counter roll 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. However, there are limits to this.

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. Wegen des relativ großen Durchmessers der Gegenwalze ist diese Belastung jedoch bereits so weit vermindert, dass die Presswalze die Gegenwalze um nur noch 0,6 m überragen muss, was den Aufwand und die Maschinenbreite vermindert.In the transition region from the concave pressing surface to the cylindrical clamping of the roll mantle at the ends of the press roll, the flexible roll mantle is subjected to deformation due to deformation. However, because of the relatively large diameter of the mating roll, this load is already reduced so much that the press roll has to overtop the mating roll by only 0.6 m, which reduces the expenditure and the machine width.

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 dadurch noch weiter vermindert, dass 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 by the fact that 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 bis zu 80 mm, vorzugsweise von bis zu 100 mm und insbesondere von bis zu 140 mm aufweist.It has proven to be advantageous depending on the conditions of use, in particular the requirements that are posed by the fibrous web to be dewatered, when the pressing surface in the web running direction has a length of up to 80 mm, preferably of up to 100 mm and in particular of to 140 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 bis zu 160 mm, vorzugsweise bis zu 190 mm und insbesondere von bis zu 230 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 up to 160 mm, preferably up to 190 mm and in particular up to 230 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 especially 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 ,

Auf Grund des relativ großen Durchmessers der Gegenwalze ergibt sich, wie bereits ausgeführt, eine geringere Belastung des flexiblen Walzenmantels im Übergangsbereich von der konkaven Pressfläche zu der zylindrischen Einspannung des Walzenmantels an den Enden der Presswalze. Dies führt dazu, dass die Presswalze, d.h. ihr Walzenmantel unter Umständen nur noch lediglich höchstens 0,5 m, vorzugsweise höchstens 0,4 m breiter als die Gegenwalze, d.h. deren Mantelfläche sein muss.Due to the relatively large diameter of the mating roll, as already stated, a lower load of the flexible roll mantle results in the transition region from the concave pressing surface to the cylindrical clamping of the roll mantle at the ends of the press roll. This results in that the press roll, i. its roll mantle may only be at most 0.5 m, preferably at most 0.4 m wider than the mating roll, i. whose lateral surface must be.

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 drainage 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 mantle 9 of the press roll 4 are supported by cylindrical side windows 12, the roll mantle 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. 25 cm, so dass die Presswalze 4 0,5 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 25 cm, so that the press roll 4 is 0.5 m longer than the counter roll 5.

Claims (7)

  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, characterized in that the diameter of the opposing roll (5) is more than 0.8 m, the roll shell of the press roll (4) is at most 0.6 m wider than the circumferential surface of the opposing roll (5) and the diameter of the press roll (4) is smaller than the diameter of the opposing roll (5).
  2. Extended nip press according to Claim 1, characterized in that 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 less than 0.25.
  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 less than 140 mm, preferably of less than 100 mm and in particular of less than 80 mm.
  5. Extended nip press according to one of Claims 1 to 3, characterized in that the pressing surface in the web running direction (11) has a length (L) of less than 230 mm, preferably of less than 190 mm and in particular of less than 160 mm.
  6. Extended nip press according to one of the preceding claims, characterized in that the width of the roll shell 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 0.5 m, preferably at most 0.4 m, wider than the circumferential surface of the opposing roll (5).
EP06743206A 2005-04-30 2006-03-15 Long nip press Not-in-force EP1893805B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06743206T PL1893805T3 (en) 2005-04-30 2006-03-15 Long nip press

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005020220A DE102005020220A1 (en) 2005-04-30 2005-04-30 Long nip press
PCT/EP2006/060720 WO2006117261A1 (en) 2005-04-30 2006-03-15 Long nip press

Publications (2)

Publication Number Publication Date
EP1893805A1 EP1893805A1 (en) 2008-03-05
EP1893805B1 true EP1893805B1 (en) 2009-10-28

Family

ID=36499333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06743206A Not-in-force EP1893805B1 (en) 2005-04-30 2006-03-15 Long nip press

Country Status (6)

Country Link
EP (1) EP1893805B1 (en)
JP (1) JP4935810B2 (en)
AT (1) ATE447071T1 (en)
DE (2) DE102005020220A1 (en)
PL (1) PL1893805T3 (en)
WO (1) WO2006117261A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2595910A1 (en) * 2010-07-23 2013-05-29 Inventio AG Nondestructive testing of a carrier element of a lift installation
DE102012005319A1 (en) 2012-03-19 2013-09-19 L'orange Gmbh Injector assembly for fuel injector of motor vehicle, has actuating element that generates pressure in fluid, which is increased with respect to system high pressure, where injector assembly is formed to be effective against pressure force

Family Cites Families (4)

* 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
BR0318220A (en) * 2003-03-31 2006-03-21 Pmt Italia Spa press-type device for removing water from a screen

Also Published As

Publication number Publication date
PL1893805T3 (en) 2010-03-31
WO2006117261A1 (en) 2006-11-09
ATE447071T1 (en) 2009-11-15
EP1893805A1 (en) 2008-03-05
JP2008540852A (en) 2008-11-20
JP4935810B2 (en) 2012-05-23
DE102005020220A1 (en) 2006-11-09
DE502006005253D1 (en) 2009-12-10

Similar Documents

Publication Publication Date Title
EP2085513B1 (en) Pressing unit
EP0496965A1 (en) Press section
EP1893805B1 (en) Long nip press
EP1749926B1 (en) Pressing arrangement
EP2329076B1 (en) Press-on unit for a paper, cardboard, or tissue machine
DE102011084980A1 (en) roller
EP3927884A1 (en) Shoe press
EP1880055B1 (en) Extended nip press
DE102007025816A1 (en) roll shell
EP1362949B1 (en) Process and apparatus for dewatering a fibrous web
WO2006117262A1 (en) Elongated slot press
EP0745725B1 (en) Roller press
DE10351294A1 (en) pressing device
DE102007024508A1 (en) Schuhsaugpresswalze
DE102005021106A1 (en) Dewatering station for paper mill has flexible mantle pressed against the adjacent drum by a convex hydraulic shoe
DE102004033751A1 (en) roll shell
EP1959052A1 (en) Shoe press roll
DE102005013627A1 (en) shooting method
DE10233920A1 (en) Papermaking machine dewaters tissue paper or web of fibrous hygiene web material in conjunction with a dewatering belt with reversible water take-up
DE10353270A1 (en) Flexible mantle for a press roller, to extract water from a wet paper/cardboard web, has a different diameter at the center of the roller at the press zone than at the roller ends to reduce mantle stresses
EP2280118B1 (en) Roller and use of a roller and method for processing a web of cardboard or paper with a roller
EP1643033B2 (en) Pressing device in a press section of a machine for manufacturing a fibrous web
DE10149816A1 (en) Press roller, to extract water from a paper/cardboard/tissue web with a counter roller, has a press shoe bar pressed against the flexible mantle with an elastic insulation element between the upper and lower shoe sections of the bar
DE102007006744A1 (en) Press arrangement
DE102006010350A1 (en) Pressing arrangement for dewatering or smoothening of a web of a paper, cardboard, tissue or other fibrous material in a machine, comprises a pressing slit formed by pressing roller and counter roller, connection element and contact element

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071130

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHUETTE, ANDREAS

Inventor name: MESCHENMOSER, ANDREAS

Inventor name: MIRSBERGER, PETER

Inventor name: AUGSCHELLER, THOMAS

17Q First examination report despatched

Effective date: 20080415

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 502006005253

Country of ref document: DE

Date of ref document: 20091210

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20091028

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100301

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100228

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100208

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100128

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

26 Opposition filed

Opponent name: ANDRITZ KUESTERS GMBH

Effective date: 20100714

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

BERE Be: lapsed

Owner name: VOITH PATENT G.M.B.H.

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100129

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100315

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100315

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110404

Year of fee payment: 6

Ref country code: PL

Payment date: 20110222

Year of fee payment: 6

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20120322

Year of fee payment: 7

Ref country code: IT

Payment date: 20120327

Year of fee payment: 7

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100429

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20091028

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 447071

Country of ref document: AT

Kind code of ref document: T

Effective date: 20110315

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110315

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120402

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20130313

Year of fee payment: 8

Ref country code: DE

Payment date: 20130321

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120315

REG Reference to a national code

Ref country code: PL

Ref legal event code: LAPE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130316

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502006005253

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140315

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502006005253

Country of ref document: DE

Effective date: 20141001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140315

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20151113