EP1116823B1 - Dryer section - Google Patents

Dryer section Download PDF

Info

Publication number
EP1116823B1
EP1116823B1 EP00123589A EP00123589A EP1116823B1 EP 1116823 B1 EP1116823 B1 EP 1116823B1 EP 00123589 A EP00123589 A EP 00123589A EP 00123589 A EP00123589 A EP 00123589A EP 1116823 B1 EP1116823 B1 EP 1116823B1
Authority
EP
European Patent Office
Prior art keywords
transfer
fibrous web
dryer
press
dryer section
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.)
Expired - Lifetime
Application number
EP00123589A
Other languages
German (de)
French (fr)
Other versions
EP1116823A2 (en
EP1116823A3 (en
Inventor
Markus Oechsle
Gerhard Kotitschke
Roland Mayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1116823A2 publication Critical patent/EP1116823A2/en
Publication of EP1116823A3 publication Critical patent/EP1116823A3/en
Application granted granted Critical
Publication of EP1116823B1 publication Critical patent/EP1116823B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F2/00—Transferring continuous webs from wet ends to press sections
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
    • F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers

Definitions

  • the invention relates to a drying section for drying a fibrous web, in particular a paper, cardboard or tissue web in machines for production and / or finishing the same consisting of several drying groups, in which the fibrous web is passed over heated drying cylinders and guide rolls, wherein the fibrous web of at least one band of the respective drying group against pressed the outer surface of the drying cylinder and the fibrous web at least a transfer point between two revolving transfer elements is passed and the transferring transfer element is faster than that having transferring transfer element.
  • Such a drying section is known from DE-C-42 20682.
  • the transfer of the fibrous web takes place in general from the last Drying cylinder of a dryer group to the dryer fabric of the following Drying group, wherein the drying wire the drying cylinder at least slightly wraps.
  • This wrap ensures on the one hand a secure transfer of Fiber web, especially at high web speeds, but limited to the other side the maximum speed difference between the Transfer elements.
  • the object of the invention is therefore to provide a way to build a possible small, but sufficient speed difference between the Transfer elements while ensuring a secure leadership and To provide transfer of the fibrous web at the transfer point.
  • the trapping of the fibrous web between the transfer elements is excluded, whereby larger differences in speed are possible without adverse effects on the paper quality.
  • the distance between the transfer elements is so small that nevertheless a secure guidance of the fibrous web is given at the transfer point. It is advantageous here if the distance between the transfer elements at the transfer point with a speed difference is greater than zero and less than 35 mm.
  • the transfer elements can be used as a roller, preferably as a drying cylinder and / or be designed as a band, preferably as a dryer fabric. Should a band to Application come, so it is advantageous if the receiving transfer element is formed as a band and at the transfer point via a suction element, is preferably performed in the form of an evacuated roll.
  • the suction element supports the takeover of the fibrous web and adhesion to the material taking over band.
  • the first drying group should only one or two, preferably have a drying cylinder. This should be the speed the receiving transfer element at the transfer point between the first and second drying group at most 2.5%, preferably 0.5 to 2.0% higher than that be the transferring transfer element.
  • the fibrous web 1 runs in the press section through at least one of two Press rollers 10 formed press nip.
  • the pressed out in the press nip Water is absorbed by endless circulating press felts 9, which together be guided with the fibrous web 1 through the press nip.
  • the decrease is from a vacuumed and Supported by the band 4 guide roller supports.
  • the evacuated Guide roll a perforated roll shell whose interior with a Vacuum source is connected.
  • the band 4 leads the fibrous web 1 to the single, heated drying cylinder 2 of first drying group of the dryer section and presses the fibrous web 1 against the Lateral surface of the heated drying cylinder 2. This causes heating the fibrous web 1 and the evaporation of moisture contained in it.
  • the band 4 can also be used as an air-impermeable transfer belt or as an air-permeable Transfer felt be executed, which the fibrous web 1 from the press section to first drying cylinder 2 of the dryer section leads.
  • this tape 4 of the first dryer group After the removal of this tape 4 of the first dryer group runs the Fibrous web 1 to the transfer point 5 on the drying cylinder 2 on.
  • the fibrous web 1 from a band 4 of the second Drying group taken in the form of an air-permeable dryer.
  • This Band 4 alternately transfers the fibrous web 1 in the second drying group heated, arranged in an upper row drying cylinder 2 and sucked, in one arranged guide row 3, wherein the fibrous web 1 against the Jacket surface of the drying cylinder 2 is pressed.
  • the transfer of the fibrous web 1 between the transfer element 6 in the form of Drying cylinder 2 of the first drying group and the transfer element 7 in the form of the belt 4 of the second drying group is here by a suction element. 8 supported.
  • the sucked element 8 designed as a suctioned guide roll is used for this purpose by the Band 4 entwined.
  • the distance between the transfer elements 6,7 at the transfer point 5 is smaller than 35 mm, but also no press nip between the drying cylinder 2 of the first drying group and the suction element 8 is formed.
  • the speed of the transferring transfer element 7 is 0.5 to 2% is higher than that of the transferring transfer element 6.
  • On the other side is the distance between the transfer elements 6,7 so small that the secure guidance the fibrous web 1 is not endangered.
  • the leadership is still through the Suction element 8 additionally stabilized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)

Description

Die Erfindung betrifft eine Trockenpartie zur Trocknung einer Faserstoffbahn, insbesondere einer Papier-, Karton-oder Tissuebahn in Maschinen zur Herstellung und/oder Veredelung derselben bestehend aus mehreren Trockengruppen, in denen die Faserstoffbahn über beheizte Trockenzylinder und Leitwalzen geführt wird, wobei die Faserstoffbahn von wenigstens einem Band der jeweiligen Trockengruppe gegen die Mantelfläche der Trockenzylinder gedrückt und die Faserstoffbahn an wenigstens einer Übergabestelle zwischen zwei mitlaufenden Transferelementen übergeben wird und das übernehmende Transferelement eine höhere Geschwindigkeit als das übergebende Transferelement aufweist.The invention relates to a drying section for drying a fibrous web, in particular a paper, cardboard or tissue web in machines for production and / or finishing the same consisting of several drying groups, in which the fibrous web is passed over heated drying cylinders and guide rolls, wherein the fibrous web of at least one band of the respective drying group against pressed the outer surface of the drying cylinder and the fibrous web at least a transfer point between two revolving transfer elements is passed and the transferring transfer element is faster than that having transferring transfer element.

Eine derartige Trockenpartie ist aus DE-C-42 20682 bekannt.Such a drying section is known from DE-C-42 20682.

Bei feuchten Faserstoffbahnen kommt es insbesondere in Pressen- und Trockenpartien zur Dehnung infolge der Einwirkung äußerer Kräfte, wie Haftkräften an Walzen und Bändern, Zentrifugalkräften sowie Kräften auf Grund von Unterdruck oder Luftströmungen. Diese Dehnung wiederum kann zur Faltenbildung oder sogar zum Abriss führen.In moist fibrous webs, it is particularly in press and Drying sections for stretching due to the action of external forces, such as adhesive forces Rolls and belts, centrifugal forces and forces due to negative pressure or Air currents. This stretching in turn can cause wrinkles or even to Demolition lead.

Um die Übergabe der Faserstoffbahn zwischen zwei Transferelementen zu unterstützen und die Dehnungen auszugleichen, werden die übernehmenden Transferelemente häufig mit einer höheren Geschwindigkeit angetrieben, das heißt es wird an der Übergabestelle ein Zug aufgebaut.To the transfer of the fibrous web between two transfer elements support and compensate for the strains become the taking over Transfer elements are often driven at a higher speed, that is a train is set up at the transfer point.

Die Übergabe der Faserstoffbahn erfolgt dabei im allgemeinen von dem letzten Trockenzylinder einer Trockengruppe an das Trockensieb der folgenden Trockengruppe, wobei das Trockensieb den Trockenzylinder zumindest geringfügig umschlingt. Diese Umschlingung gewährleistet einerseits eine sichere Übergabe der Faserstoffbahn, insbesondere bei hohen Bahngeschwindigkeiten, begrenzt aber auf der anderen Seite die maximale Geschwindigkeitsdifferenz zwischen den Transferelementen. The transfer of the fibrous web takes place in general from the last Drying cylinder of a dryer group to the dryer fabric of the following Drying group, wherein the drying wire the drying cylinder at least slightly wraps. This wrap ensures on the one hand a secure transfer of Fiber web, especially at high web speeds, but limited to the other side the maximum speed difference between the Transfer elements.

Die Aufgabe der Erfindung ist es daher, eine Möglichkeit zum Aufbau einer möglichst kleinen, jedoch ausreichenden Geschwindigkeitsdifferenz zwischen den Transferelementen bei gleichzeitiger Gewährleistung einer sicheren Führung und Übergabe der Faserstoffbahn an der Übergabestelle zu schaffen.The object of the invention is therefore to provide a way to build a possible small, but sufficient speed difference between the Transfer elements while ensuring a secure leadership and To provide transfer of the fibrous web at the transfer point.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs 1 gelöst.According to the invention, the task through the features of claim 1.

Hierdurch wird das Einklemmen der Faserstoffbahn zwischen den Transferelementen ausgeschlossen, wodurch größere Geschwindigkeitsdifferenzen ohne negative Auswirkungen auf die Papierqualität möglich sind. Der Abstand zwischen den Transferelementen ist dabei so gering, dass dennoch eine sichere Führung der Faserstoffbahn an der Übergabestelle gegeben ist.
Vorteilhaft ist es hierbei, wenn der Abstand zwischen den Transferelementen an der Übergabestelle mit Geschwindigkeitsdifferenz größer als Null und kleiner als 35 mm ist.As a result, the trapping of the fibrous web between the transfer elements is excluded, whereby larger differences in speed are possible without adverse effects on the paper quality. The distance between the transfer elements is so small that nevertheless a secure guidance of the fibrous web is given at the transfer point.
It is advantageous here if the distance between the transfer elements at the transfer point with a speed difference is greater than zero and less than 35 mm.

Die Transferelemente können dabei als Walze, vorzugsweise als Trockenzylinder und/oder als Band, vorzugsweise als Trockensieb ausgeführt sein. Sollte ein Band zur Anwendung kommen, so ist es von Vorteil, wenn das übernehmende Transferelement als Band ausgebildet ist und an der Übergabestelle über ein Saugelement, vorzugsweise in Form einer besaugten Walze geführt wird. Das Saugelement unterstützt dabei die Übernahme der Faserstoffbahn und das Haften am übernehmenden Band.The transfer elements can be used as a roller, preferably as a drying cylinder and / or be designed as a band, preferably as a dryer fabric. Should a band to Application come, so it is advantageous if the receiving transfer element is formed as a band and at the transfer point via a suction element, is preferably performed in the form of an evacuated roll. The suction element supports the takeover of the fibrous web and adhesion to the material taking over band.

Falls ein Transferelement von einer Walze gebildet wird, so sollte das andere Transferelement ein Band sein. Dies erlaubt eine Vernachlässigung des Durchhanges der oft sehr breiten Walzen bei der Bildung der Übergabestelle. Das Band sollte die Walze an der Übergabestelle jedoch nicht umschlingen, um die Kraftwirkung auf die Faserstoffbahn zu minimieren.If a transfer element is formed by a roller, so should the other Transfer element to be a band. This allows a neglect of the sag Often very wide rollers in the formation of the transfer point. The band should be the However, at the transfer point, do not wrap the roller around the force effect on the transfer roller Minimize fibrous web.

Von besonderem Vorteil ist der Einsatz der Anordnung im Bereich eines hohen Feuchtegehaltes, das heißt auch verstärkter Dehnung der Faserstoffbahn am Beginn der Trockenpartie, insbesondere zwischen der ersten und zweiten Trockengruppe.Of particular advantage is the use of the arrangement in the region of a high Moisture content, that is also increased elongation of the fibrous web at the beginning the dryer section, in particular between the first and second dryer group.

Um nach der Pressenpartie möglichst schnell eine Geschwindigkeitsdifferenz, das heißt einen Zug aufbauen zu können, sollte die erste Trockengruppe nur einen oder zwei, vorzugsweise einen Trockenzylinder besitzen. Hierbei sollte die Geschwindigkeit des übernehmenden Transferelementes an der Übergabestelle zwischen der ersten und zweiten Trockengruppe maximal 2,5 %, vorzugsweise 0,5 bis 2,0 % höher als die des übergebenden Transferelementes sein.To after the press section as quickly as possible a speed difference, the means to build a train, the first drying group should only one or two, preferably have a drying cylinder. This should be the speed the receiving transfer element at the transfer point between the first and second drying group at most 2.5%, preferably 0.5 to 2.0% higher than that be the transferring transfer element.

Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt die Figur eine schematische Darstellung vom Ende einer Pressen- und dem Beginn einer Trockenpartie.The invention will be explained in more detail with reference to an exemplary embodiment. In the accompanying drawing, the figure shows a schematic representation of the end a press and the beginning of a dryer section.

Die Faserstoffbahn 1 läuft in der Pressenpartie durch mindestens einen, von zwei Presswalzen 10 gebildeten Pressspalt. Das dabei in dem Pressspalt ausgepresste Wasser wird von endlos umlaufenden Pressfilzen 9 aufgenommen, die gemeinsam mit der Faserstoffbahn 1 durch den Pressspalt geführt werden. Hier erfolgt die Abnahme der Faserstoffbahn 1 vom Pressfilz 9 der unteren Presswalzen 10 des letzten oder einzigen Pressspaltes und der Transport mit einem luftdurchlässigen Band 4 in Form eines Trockensiebes. Die Abnahme wird von einer besaugten und vom Band 4 umschlungenen Leitwalze unterstützt. Hierzu besitzt die besaugte Leitwalze einen perforiertem Walzenmantel, dessen Innenraum mit einer Unterdruckquelle verbunden ist.The fibrous web 1 runs in the press section through at least one of two Press rollers 10 formed press nip. The pressed out in the press nip Water is absorbed by endless circulating press felts 9, which together be guided with the fibrous web 1 through the press nip. Here is done the decrease of the fibrous web 1 from the press felt 9 of the lower press rolls 10 of last or single press nip and transport with an air-permeable Volume 4 in the form of a dryer. The decrease is from a vacuumed and Supported by the band 4 guide roller supports. For this purpose has the evacuated Guide roll a perforated roll shell whose interior with a Vacuum source is connected.

Das Band 4 führt die Faserstoffbahn 1 zum einzigen, beheizten Trockenzylinder 2 der ersten Trockengruppe der Trockenpartie und drückt die Faserstoffbahn 1 gegen die Mantelfläche des beheizten Trockenzylinders 2. Hierdurch kommt es zur Erwärmung der Faserstoffbahn 1 und zur Verdampfung der in ihr enthaltenen Feuchtigkeit.The band 4 leads the fibrous web 1 to the single, heated drying cylinder 2 of first drying group of the dryer section and presses the fibrous web 1 against the Lateral surface of the heated drying cylinder 2. This causes heating the fibrous web 1 and the evaporation of moisture contained in it.

Das Band 4 kann auch als luftundurchlässiges Transferband oder als luftdurchlässiger Transferfilz ausgeführt sein, welches die Faserstoffbahn 1 von der Pressenpartie zum ersten Trockenzylinder 2 der Trockenpartie führt.The band 4 can also be used as an air-impermeable transfer belt or as an air-permeable Transfer felt be executed, which the fibrous web 1 from the press section to first drying cylinder 2 of the dryer section leads.

Nach dem Wegführen dieses Bandes 4 der ersten Trockengruppe läuft die Faserstoffbahn 1 bis zur Übergabestelle 5 auf dem Trockenzylinder 2 weiter. An der Übergabestelle 5 wird die Faserstoffbahn 1 von einem Band 4 der zweiten Trockengruppe in Form eines luftdurchlässigen Trockensiebes übernommen. Dieses Band 4 führt die Faserstoffbahn 1 in der zweiten Trockengruppe abwechselnd über beheizte, in einer oberen Reihe angeordnete Trockenzylinder 2 und besaugte, in einer unteren Reihe angeordnete Leitwalzen 3, wobei die Faserstoffbahn 1 gegen die Mantelfläche der Trockenzylinder 2 gedrückt wird.After the removal of this tape 4 of the first dryer group runs the Fibrous web 1 to the transfer point 5 on the drying cylinder 2 on. At the Transfer point 5, the fibrous web 1 from a band 4 of the second Drying group taken in the form of an air-permeable dryer. This Band 4 alternately transfers the fibrous web 1 in the second drying group heated, arranged in an upper row drying cylinder 2 and sucked, in one arranged guide row 3, wherein the fibrous web 1 against the Jacket surface of the drying cylinder 2 is pressed.

Die Übergabe der Faserstoffbahn 1 zwischen dem Transferelement 6 in Form des Trockenzylinders 2 der ersten Trockengruppe und dem Transferelement 7 in Form des Bandes 4 der zweiten Trockengruppe wird hier von einem Saugelement 8 unterstützt. Das als besaugte Leitwalze ausgeführte Saugelement 8 wird hierzu vom Band 4 umschlungen.The transfer of the fibrous web 1 between the transfer element 6 in the form of Drying cylinder 2 of the first drying group and the transfer element 7 in the form of the belt 4 of the second drying group is here by a suction element. 8 supported. The sucked element 8 designed as a suctioned guide roll is used for this purpose by the Band 4 entwined.

Der Abstand zwischen den Transferelementen 6,7 an der Übergabestelle 5 ist kleiner als 35 mm, wobei aber auch kein Pressspalt zwischen dem Trockenzylinder 2 der ersten Trockengruppe und dem Saugelement 8 gebildet wird. Da es ebenfalls zu keiner Umschlingung des Trockenzylinders 2 der ersten Trockengruppe durch das Band 4 der zweiten Trockengruppe kommt, kann ein ausreichend großer Zug zwischen beiden Trockengruppen aufgebaut werden. Hierzu ist es meist ausreichend, wenn die Geschwindigkeit des übernehmenden Transferelementes 7 0,5 bis 2 % höher ist als die des übergebenden Transferelementes 6. Auf der anderen Seite ist der Abstand zwischen den Transferelementen 6,7 so klein, dass die sichere Führung der Faserstoffbahn 1 nicht gefährdet ist. Außerdem wird die Führung noch durch das Saugelement 8 zusätzlich stabilisiert.The distance between the transfer elements 6,7 at the transfer point 5 is smaller than 35 mm, but also no press nip between the drying cylinder 2 of the first drying group and the suction element 8 is formed. As it too too no wrapping of the drying cylinder 2 of the first drying group through the Volume 4 of the second drying group comes, can be a sufficiently large move be set up between two drying groups. For this it is usually sufficient when the speed of the transferring transfer element 7 is 0.5 to 2% is higher than that of the transferring transfer element 6. On the other side is the distance between the transfer elements 6,7 so small that the secure guidance the fibrous web 1 is not endangered. In addition, the leadership is still through the Suction element 8 additionally stabilized.

Neben dem Aufbau von Zügen zum Dehnungsausgleich in der Pressenpartie ergibt sich hierdurch die Möglichkeit für einen, wegen der kurzen ersten Trockengruppe schnell folgenden Aufbau eines Zuges am Beginn der Trockenpartie. Dieser Zug kann nunmehr ohne negative Auswirkungen auf die Qualität der Faserstoffbahn 1 auch ausreichend groß gestaltet werden.In addition to the construction of trains for expansion compensation in the press section yields This gives the possibility for one, because of the short first drying group fast following construction of a train at the beginning of the dryer section. This train can now without negative effects on the quality of the fibrous web 1 too be made sufficiently large.

Claims (7)

  1. Dryer section for drying a paper, board, tissue or another fibrous web (1) in machines for producing and/or converting the same, comprising a plurality of dryer groups, in which the fibrous web (1) is led over heated drying cylinders (2) and guide rolls (3), a belt (4) leading the fibrous web (1) from a press section to the dryer section, the fibrous web (1) being pressed by at least one belt (4) of the respective dryer group against the circumferential surface of the drying cylinders (2) and, at least at the transfer point (5), the fibrous web (1) being transferred between two transfer elements (6, 7) running together between the first and the second dryer group, and one transfer element (6) being formed as a drying cylinder (2) and one transfer element (7) being formed as a belt (4), the accepting transfer element (7) having a higher speed then the transferring transfer element (6) and the transfer elements (6, 7) at the transfer point (5) having a spacing of more than zero and less than 70 mm, characterized in that, in the press section, the fibrous web (1) runs together with press felts (9) through at least one press nip formed by two press rolls (10), and the belt (4) which leads the fibrous web (1) from the press section to the dryer section picks up the fibrous web (1) from a press felt (9) of a lower press roll (10) of the single or last press nip.
  2. Dryer section according to Claim 1, characterized in that the spacing between the transfer elements (6, 7) at the transfer point (5) is greater than zero and less than 35 mm.
  3. Dryer section according to Claim 1 or 2, characterized in that the accepting belt (4) at the transfer point (5) is led over a suction element (8), preferably in the form of an evacuated roll.
  4. Dryer section according to one of the preceding claims, characterized in that the belt (4) does not wrap around the roll at the transfer point (5).
  5. Dryer section according to one of the preceding claims, characterized in that the first dryer group has only one or two, preferably one, drying cylinder (2).
  6. Dryer section according to one of the preceding claims, characterized in that, at least at the transfer point (5) between the first and second drier group, there is a speed difference between the transfer elements (6, 7).
  7. Dryer section according to Claim 6, characterized in that the speed of the accepting transfer element (7) at the transfer point (5) between the first and second dryer group is a maximum of 2.5%, preferably 0.5 to 2.0%, higher than that of the transferring transfer element (6).
EP00123589A 1999-12-10 2000-10-28 Dryer section Expired - Lifetime EP1116823B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19959669A DE19959669A1 (en) 1999-12-10 1999-12-10 Drying section for e.g. paper web has transfer point where components are slightly spaced apart and run at differing speeds
DE19959669 1999-12-10

Publications (3)

Publication Number Publication Date
EP1116823A2 EP1116823A2 (en) 2001-07-18
EP1116823A3 EP1116823A3 (en) 2002-06-26
EP1116823B1 true EP1116823B1 (en) 2005-04-06

Family

ID=7932202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00123589A Expired - Lifetime EP1116823B1 (en) 1999-12-10 2000-10-28 Dryer section

Country Status (4)

Country Link
US (1) US6367164B1 (en)
EP (1) EP1116823B1 (en)
CA (1) CA2327922A1 (en)
DE (2) DE19959669A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50110918D1 (en) * 2000-05-24 2006-10-19 Voith Patent Gmbh drying section
FI121081B (en) * 2002-01-08 2010-06-30 Metso Paper Automation Oy Method and equipment associated with a paper machine or paper finishing device
DE10213144A1 (en) * 2002-03-23 2003-10-02 Voith Paper Patent Gmbh Press arrangement

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101577A (en) * 1987-02-13 1992-04-07 Beloit Corporation Web transfer apparatus
US5184408A (en) * 1990-01-19 1993-02-09 J. M. Voith Gmbh Dryer section
DE4201107C2 (en) * 1991-01-24 1993-10-14 Voith Gmbh J M Dryer section
US5355593A (en) 1992-06-24 1994-10-18 J.M. Voith Gmbh Device for transferring a fiber web
DE4220682C1 (en) * 1992-06-24 1993-12-23 Voith Gmbh J M Paper web transfer appts. - has min. free path between press and drying sections with motor speed control to apply tension to web on entering time drying section
US5526579A (en) * 1993-02-17 1996-06-18 J.M. Voith Gmbh Dryer section
DE4328555A1 (en) * 1993-08-25 1994-03-31 Voith Gmbh J M Paper-making machine twin-blanket drying section - has structured gap between suction deflection rollers in upper row of cylinders and blanket path at lower row to reduce web path
US5771603A (en) * 1994-09-16 1998-06-30 Voith Sulzer Papiermashinen Gmbh Dryer section
US5632101A (en) * 1994-09-16 1997-05-27 Voith Sulzer Papiermaschinen Gmbh All top-felted single-tier drying section with post drying section curl control
US5638611A (en) * 1995-10-18 1997-06-17 Voith Sulzer Papiermaschinen Gmbh Single-tier drying section tailored for compensating stretching and shrinking of paper web
DE19543086A1 (en) * 1995-11-18 1997-05-22 Voith Sulzer Papiermasch Gmbh Single row paper web drying section giving good low-cost curl control
DE19615226A1 (en) * 1996-04-18 1997-10-23 Voith Sulzer Papiermasch Gmbh Dryer section
DE19642526A1 (en) * 1996-10-15 1998-04-16 Voith Sulzer Papiermasch Gmbh Dryer section
DE19805723A1 (en) * 1998-02-12 1999-08-19 Voith Sulzer Papiertech Patent Dryer section and method for operating such a dryer section

Also Published As

Publication number Publication date
EP1116823A2 (en) 2001-07-18
US6367164B1 (en) 2002-04-09
CA2327922A1 (en) 2001-06-10
EP1116823A3 (en) 2002-06-26
DE19959669A1 (en) 2001-06-13
DE50009987D1 (en) 2005-05-12

Similar Documents

Publication Publication Date Title
EP1072721B1 (en) Paper machine
EP1316641B1 (en) Press section
EP3548664B1 (en) Pressing arrangement
EP1116823B1 (en) Dryer section
EP1739228B1 (en) Machine for manufacturing a fibrous web
EP3833816A1 (en) Pressing arrangement
EP1777342A1 (en) Pressing arrangement
WO2003002814A1 (en) Drying section
DE19934777A1 (en) Dryer section producing or finishing paper, card or tissue web includes detachment region without support, which is provided further away by drying sieve
EP1777340B1 (en) Pressing arrangement
AT521367A4 (en) DEVICE AND METHOD FOR CONVERTING A STRIP OF A TRAIN
EP1743974B1 (en) Press section
AT521368B1 (en) DEVICE AND METHOD FOR CONVERTING A STRIP OF A TRAIN
EP2235256A1 (en) Device for producing and/or processing a fiber material web
DE29924879U1 (en) Drying section for e.g. paper web has transfer point where components are slightly spaced apart and run at differing speeds
DE10137095A1 (en) Machine for the production of a fibrous web
EP1838919B1 (en) Pressing arrangement
EP1698727A1 (en) Paper machine
EP1936028B1 (en) Paper machine
DE10161989A1 (en) Web transfer between pairs of continuous belts, at the press section of a papermaking production/finishing machine, passes the web between two belts through a roller press gap before the transfer
DE102005048928A1 (en) Press for dewatering and smoothing a paper web comprises an extended press nip and a calender nip between which the web runs with no open draw
DE202005020882U1 (en) Dewatering and drying station for paper mill, e.g. for carton, paper or tissue paper has nip gap formed by drying cylinder and smoothing drum
EP1347097A2 (en) Pressing arrangement
DE102011006634A1 (en) Paper machine for producing e.g. paper web, has drying belt pressing web against heated sleeve surface of cylinder, where web unsupportedly runs from cylinder till transfer through another drying belt after guiding away of former belt
EP1985751A2 (en) Drying section of a paper machine

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20021227

AKX Designation fees paid

Designated state(s): DE FI SE

17Q First examination report despatched

Effective date: 20030626

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): DE FI SE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REF Corresponds to:

Ref document number: 50009987

Country of ref document: DE

Date of ref document: 20050512

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060110

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

Ref country code: DE

Payment date: 20101022

Year of fee payment: 11

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

Ref country code: SE

Payment date: 20111021

Year of fee payment: 12

Ref country code: FI

Payment date: 20111013

Year of fee payment: 12

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: 20130501

Ref country code: SE

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

Effective date: 20121029

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50009987

Country of ref document: DE

Effective date: 20130501

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: 20121028