EP2633117A1 - Device and method for drying fibrous material - Google Patents

Device and method for drying fibrous material

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Publication number
EP2633117A1
EP2633117A1 EP11788760.4A EP11788760A EP2633117A1 EP 2633117 A1 EP2633117 A1 EP 2633117A1 EP 11788760 A EP11788760 A EP 11788760A EP 2633117 A1 EP2633117 A1 EP 2633117A1
Authority
EP
European Patent Office
Prior art keywords
press
nip
fibrous web
felt
gautschwalzen
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.)
Granted
Application number
EP11788760.4A
Other languages
German (de)
French (fr)
Other versions
EP2633117B1 (en
Inventor
Franz Petschauer
Stefan Hansen
Klaus PÖSCHL
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.)
Andritz AG
Original Assignee
Andritz AG
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 Andritz AG filed Critical Andritz AG
Publication of EP2633117A1 publication Critical patent/EP2633117A1/en
Application granted granted Critical
Publication of EP2633117B1 publication Critical patent/EP2633117B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
    • 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
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0254—Cluster presses, i.e. presses comprising a press chamber defined by at least three rollers
    • 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
    • D21F3/04—Arrangements thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type

Definitions

  • the subject of this invention is a method for dewatering a fibrous web, wherein pulp is applied to a fibrous web to form a fibrous web on at least one screen and dehydrated.
  • the fibrous web is passed through several presses and dewatered.
  • the invention also provides an apparatus for carrying out the method according to the invention.
  • a conventional apparatus for dewatering pulp is disclosed in WO99 / 66122 in FIG. In this device is a
  • Fibrous suspension applied to a sieve via a headbox, thereby forming a fibrous web.
  • the fibrous web is dewatered by a first press, the so-called "lump breaker.”
  • This press has a nip, which is formed by a screen roller and by a gas roller, whereby the roller is wrapped in a felt.
  • the invention is therefore based on the object to provide a method with a "Lump breaker" or a first press, in which even at high production rates sufficient dewatering of the fibrous web can be done.
  • the Gautschwalzen be wrapped by a common felt. It is also useful if the felt is dewatered between the first and the second nip with a pipe suction, so that the felt runs dry again in the second nip.
  • the fibrous web is transferred without loose train from the first press in a subsequent shoe press, wherein the
  • Web transfer is performed by means of a suction roll or a grooved roll.
  • the fibrous web between the first and the second nip of the first press is heated by a steam blower box.
  • a steam blower box By heating the moist fibrous web, the viscosity of the water contained can be changed, whereby the drainage in the second nip is favored.
  • the subject of this invention is also a corresponding device according to one of claims 6 to 10 for carrying out the method.
  • Fig. 1 shows a conventional dewatering device according to the prior art
  • Fig. 2 is a schematic representation of the invention
  • Fig. 3 shows a further variant of the dewatering device according to the invention.
  • a dewatering device 1 according to the prior art is shown.
  • the pulp suspension is injected through a headbox 2 between the wires 3 of the wire section.
  • This forms a fibrous web 4, which is dewatered in a first press 8, the so-called “Lump Braker.”
  • This first press 8 consists of a screen roller 5 and a couch roll 6, wherein the couch roll is looped around by the felt 7.
  • Fig. 2 the dewatering device 11 according to the invention is shown. Again, a pulp suspension is injected via a headbox 2 between the two wires 12.
  • a pulp suspension is injected via a headbox 2 between the two wires 12.
  • the Dewatering device has only one lower sieve.
  • the first press 21 is designed as a double nip press. It thus consists of 3 rollers 15, 16, namely a screen roller 5 and two couch rolls 16. The two couch rolls 6 abut on the screen roller 15 and thus form a first nip and a second nip.
  • the screen roller 5 is preferably vacuumed and is looped around by the screen 12.
  • the two Gautschwalzen 16 are wrapped in the present example of a common felt 17, but it is also conceivable that each Gautschwalze 16 is wrapped by its own felt. in the
  • Tube suction 23 arranged for dry suction of the felt 17.
  • a steam blower box 22 for heating the fibrous web 4 is also arranged between the two Gautschwalzen 16.
  • the fibrous web 4 is transferred in the free train from the first press 21 in the shoe press 10.
  • the fibrous web 4 is dewatered after the wire section by the two press nips of the first press 21, the felt 17 takes in each press nip moisture from the fibrous web 4, in an evacuated Screening roller 15 also also moisture over the screen roller 15th
  • FIG. 3 shows a similar dewatering apparatus 11 as in FIG. 2, but here the fibrous web 4 is transferred from the first press 21 into the following press (here shown as a shoe press 10) without free tension, ie with permanent web support.
  • the web transfer from the wire 12 for subsequent covering of the shoe press 10 is carried out with the aid of a suction roll 18 or a grooved roll 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The subject matter of the invention relates to a method for dewatering a fibrous material web (4), wherein fibrous material is applied via a headbox (2) on at least one wire (12) and is subsequently dewatered in order to form a fibrous material web (4). Following the wire section, the resulting fibrous material web (4) is dewatered by several presses, wherein the first press (21) through which the fibrous material web (4) is guided following the headbox (2) is equipped with a double nip. The first press (21) is formed by a wire roll (15) and two couch rolls (16) which are each pressed against the wire roll (16) for forming a nip. The subject matter of the invention also relates to a corresponding device for carrying out the method.

Description

Vorrichtung und Verfahren zur Trocknung von Faserstoff  Apparatus and method for drying pulp
Den Gegenstand dieser Erfindung bildet ein Verfahren zur Entwässerung einer Faserstoffbahn, wobei Faserstoff zur Bildung einer Faserstoffbahn über einen Stoffauflauf auf zumindest ein Sieb aufgebracht und entwässert wird. Im The subject of this invention is a method for dewatering a fibrous web, wherein pulp is applied to a fibrous web to form a fibrous web on at least one screen and dehydrated. in the
Anschluss an die Siebpartie wird die Faserstoffbahn durch mehrere Pressen geführt und entwässert. Following the wire section, the fibrous web is passed through several presses and dewatered.
Gegenstand der Erfindung bildet auch eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.  The invention also provides an apparatus for carrying out the method according to the invention.
Eine herkömmliche Vorrichtung zur Entwässerung für Faserstoff ist in der W099/66122 in Fig. 1 offenbart. Bei dieser Vorrichtung wird eine A conventional apparatus for dewatering pulp is disclosed in WO99 / 66122 in FIG. In this device is a
Faserstoffsuspension über einen Stoffauflauf auf ein Sieb aufgebracht, dabei bildet sich eine Faserstoffbahn. Im Anschluss wird die Faserstoffbahn durch eine erste Presse, dem sogenannten„Lump breaker" entwässert. Diese Presse weist einen Nip auf, der durch eine Siebwalze und durch eine Gautschwalze gebildet wird. Die Gautschwalze wird dabei von einem Filz umschlungen. Fibrous suspension applied to a sieve via a headbox, thereby forming a fibrous web. Subsequently, the fibrous web is dewatered by a first press, the so-called "lump breaker." This press has a nip, which is formed by a screen roller and by a gas roller, whereby the roller is wrapped in a felt.
Das Problem bei dieser Presse ist, dass bei hohen Produktionsgeschwindigkeiten der Filz überladen ist und es zum Verpressen der Bahn kommt. The problem with this press is that at high production speeds the felt is overloaded and the web is compressed.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren mit einem „Lump breaker" bzw. einer ersten Presse bereitzustellen, bei der auch bei hohen Produktionsraten eine ausreichende Entwässerung der Faserstoffbahn erfolgen kann. The invention is therefore based on the object to provide a method with a "Lump breaker" or a first press, in which even at high production rates sufficient dewatering of the fibrous web can be done.
Gelöst wird diese Aufgabe durch ein Entwässerungsverfahren, bei dem die erste Presse, durch die die Faserstoffbahn nach dem Stoffauflauf geführt wird, mit einem Doppelnip ausgestattet ist. Die erste Presse wird dabei durch eine This problem is solved by a dewatering process in which the first press, through which the fibrous web is guided to the headbox, is equipped with a double nip. The first press is thereby by a
Siebwalze und durch zwei Gautschwalzen, die jeweils zur Bildung eines Nips gegen die Siebwalze angepresst werden, gebildet. Die Siebwalze wird von einem Sieb und die Gautschwalzen werden jeweils von einem Filz umschlungen. Durch den Doppelnip des„Lump breakers" kann eine erhebliche Verbesserung der Entwässerungsleistung der ersten Presse erreicht werden. Screen roller and two Gautschwalzen, each of which is pressed against the screen roller to form a nip formed. The screen roller is surrounded by a screen and the nests are each wrapped by a felt. The double nip of the "Lump breaker" can significantly improve the drainage performance of the first press.
Es ist vorteilhaft, wenn die Gautschwalzen von einem gemeinsamen Filz umschlungen werden. Dabei ist es auch sinnvoll, wenn der Filz zwischen dem ersten und dem zweiten Nip mit einem Rohrsauger entwässert wird, damit der Filz wieder trocken im zweiten Nip einläuft. It is advantageous if the Gautschwalzen be wrapped by a common felt. It is also useful if the felt is dewatered between the first and the second nip with a pipe suction, so that the felt runs dry again in the second nip.
In einer günstigen Ausführungsform wird die Faserstoffbahn ohne losen Zug von der ersten Presse in eine nachfolgende Schuhpresse überführt, wobei dieIn a favorable embodiment, the fibrous web is transferred without loose train from the first press in a subsequent shoe press, wherein the
Bahnüberführung mit Hilfe einer Saugwalze oder einer Rillenwalze durchgeführt wird. Web transfer is performed by means of a suction roll or a grooved roll.
Es ist außerdem günstig, wenn die Faserstoffbahn zwischen dem ersten und dem zweiten Nip der ersten Presse durch einen Dampfblaskasten erwärmt wird. Durch die Erwärmung der feuchten Faserstoffbahn kann die Viskosität des enthaltenen Wassers verändert werden, wodurch die Entwässerung im zweiten Nip begünstigt wird. Den Gegenstand dieser Erfindung bildet auch eine entsprechende Vorrichtung gemäß einem der Ansprüche 6 bis 10 zur Durchführung des Verfahrens. It is also advantageous if the fibrous web between the first and the second nip of the first press is heated by a steam blower box. By heating the moist fibrous web, the viscosity of the water contained can be changed, whereby the drainage in the second nip is favored. The subject of this invention is also a corresponding device according to one of claims 6 to 10 for carrying out the method.
Im Folgenden wird die Erfindung anhand von Zeichnungen beschrieben. Es zeigen: In the following the invention will be described with reference to drawings. Show it:
Fig. 1 eine herkömmliche Entwässerungsvorrichtung nach dem Stand der Technik; Fig. 1 shows a conventional dewatering device according to the prior art;
Fig. 2 eine schematische Darstellung der erfindungsgemäßen  Fig. 2 is a schematic representation of the invention
Entwässerungsvorrichtung; Dehydrator;
Fig. 3 eine weitere Variante der erfindungsgemäßen Entwässerungsvorrichtung. Fig. 3 shows a further variant of the dewatering device according to the invention.
Gleiche Bezugszeichen in den jeweiligen Figuren bezeichnen gleiche Bauteile. In Fig. 1 ist eine Entwässerungsvorrichtung 1 nach dem Stand der Technik dargestellt. Die Faserstoffsuspension wird durch einen Stoffauflauf 2 zwischen die Siebe 3 der Siebpartie eingedüst. Dadurch bildet sich eine Faserstoffbahn 4, die in einer ersten Presse 8, dem sogenannten„Lump braker", entwässert wird. Diese erste Presse 8 besteht aus einer Siebwalze 5 und einer Gautschwalze 6, wobei die Gautschwalze vom Filz 7 umschlungen wird. Bei hohen Like reference numerals in the respective figures indicate like components. In Fig. 1, a dewatering device 1 according to the prior art is shown. The pulp suspension is injected through a headbox 2 between the wires 3 of the wire section. This forms a fibrous web 4, which is dewatered in a first press 8, the so-called "Lump Braker." This first press 8 consists of a screen roller 5 and a couch roll 6, wherein the couch roll is looped around by the felt 7. At high
Produktionsgeschwindigkeiten wird der Filz 7 überladen, die Entwässerung der Faserstoffbahn 4 ist dann nicht mehr zufriedenstellend. Production speeds, the felt 7 is overloaded, the dewatering of the fibrous web 4 is then no longer satisfactory.
Nach der ersten Presse 8 sind weitere Pressen 9 und 10 angeordnet, durch die die Faserstoffbahn 4 weiter entwässert werden kann. After the first press 8 more presses 9 and 10 are arranged, through which the fibrous web 4 can be further dehydrated.
In Fig. 2 ist die erfindungsgemäße Entwässerungsvorrichtung 11 dargestellt. Auch hier wird eine Faserstoffsuspension über einen Stoffauflauf 2 zwischen die beiden Siebe 12 eingedüst. Natürlich ist es auch denkbar, dass diese In Fig. 2, the dewatering device 11 according to the invention is shown. Again, a pulp suspension is injected via a headbox 2 between the two wires 12. Of course it is also conceivable that this
Entwässerungsvorrichtung nur ein Untersieb aufweist. Die erste Presse 21 ist als Doppelnippresse ausgeführt. Sie besteht also aus 3 Walzen 15, 16, nämlich einer Siebwalze 5 und aus zwei Gautschwalzen 16. Die beiden Gautschwalzen 6 liegen an der Siebwalze 15 an und bilden so einen ersten Nip und einen zweiten Nip. Die Siebwalze 5 ist vorzugsweise besaugt und wird vom Sieb 12 umschlungen. Die beiden Gautschwalzen 16 werden im vorliegenden Beispiel von einem gemeinsamen Filz 17 umschlungen, es ist aber auch denkbar, dass jede Gautschwalze 16 von einem eigenen Filz umschlungen wird. Im Dewatering device has only one lower sieve. The first press 21 is designed as a double nip press. It thus consists of 3 rollers 15, 16, namely a screen roller 5 and two couch rolls 16. The two couch rolls 6 abut on the screen roller 15 and thus form a first nip and a second nip. The screen roller 5 is preferably vacuumed and is looped around by the screen 12. The two Gautschwalzen 16 are wrapped in the present example of a common felt 17, but it is also conceivable that each Gautschwalze 16 is wrapped by its own felt. in the
vorliegenden Beispiel ist zwischen den beiden Gautschwalzen 6 ein present example is between the two Gautschwalzen 6 a
Rohrsauger 23 zur Trockensaugung des Filzes 17 angeordnet. Außerdem ist ebenfalls zwischen den beiden Gautschwalzen 16 ein Dampfblaskasten 22 zur Erwärmung der Faserstoffbahn 4 angeordnet. Tube suction 23 arranged for dry suction of the felt 17. In addition, a steam blower box 22 for heating the fibrous web 4 is also arranged between the two Gautschwalzen 16.
Vor der ersten Presse 21 befinden sich ein Saugkasten 14 und ein Before the first press 21 are a suction box 14 and a
Dampfblaskasten 13. Nach der ersten Presse ist eine Schuhpresse 0 Steam box 13. After the first press, a shoe press is 0
angeordnet, die Faserstoffbahn 4 wird dabei im freien Zug von der ersten Presse 21 in die Schuhpresse 10 überführt. arranged, the fibrous web 4 is transferred in the free train from the first press 21 in the shoe press 10.
Im Betrieb wird die Faserstoffbahn 4 nach der Siebpartie durch die beiden Pressnips der ersten Presse 21 entwässert, der Filz 17 nimmt dabei in jedem Pressnip Feuchtigkeit aus der Faserstoffbahn 4 auf, bei einer besaugten Siebwalze 15 wird außerdem auch Feuchtigkeit über die Siebwalze 15 In operation, the fibrous web 4 is dewatered after the wire section by the two press nips of the first press 21, the felt 17 takes in each press nip moisture from the fibrous web 4, in an evacuated Screening roller 15 also also moisture over the screen roller 15th
abgeführt. dissipated.
In Fig. 3 ist eine ähnliche Entwässerungsvorrichtung 11 wie in Fig. 2 dargestellt, jedoch wird hier die Faserstoffbahn 4 ohne freien Zug, also mit permanenter Bahnunterstützung, von der ersten Presse 21 in die nachfolgende Presse (hier als Schuhpresse 10 dargestellt) überführt. Die Bahnüberführung vom Sieb 12 zur nachfolgenden Bespannung der Schuhpresse 10 wird dabei mit Hilfe einer Saugwalze 18 oder einer Rillenwalze 19 durchgeführt. FIG. 3 shows a similar dewatering apparatus 11 as in FIG. 2, but here the fibrous web 4 is transferred from the first press 21 into the following press (here shown as a shoe press 10) without free tension, ie with permanent web support. The web transfer from the wire 12 for subsequent covering of the shoe press 10 is carried out with the aid of a suction roll 18 or a grooved roll 19.

Claims

Patentansprüche claims
.1. Verfahren zur Entwässerung einer Faserstoffbahn (4), wobei Faserstoff zur Bildung einer Faserstoffbahn (4) über einen Stoffauflauf (2) auf zumindest ein Sieb (12) aufgebracht und entwässert wird und wobei die entstandene .1. Method for dewatering a fibrous web (4), wherein fibrous material for forming a fibrous web (4) via a headbox (2) on at least one sieve (12) is applied and dewatered and wherein the resulting
Faserstoffbahn (4) im Anschluss an die Siebpartie durch mehrere Pressen (21 , 10) geführt und entwässert wird, dadurch gekennzeichnet, dass die erste Presse (21 ), durch die die Faserstoffbahn (4) nach dem Stoffauflauf (2) geführt wird, mit einem Doppelnip ausgestattet ist, dabei wird die erste Presse (21 ) durch eine Siebwalze (15) und durch zwei Gautschwalzen (16), die jeweils zur Bildung eines Nips gegen die Siebwalze (15) angepresst werden, gebildet, wobei die Siebwalze (15) von einem Sieb (12) und die Gautschwalzen (16) jeweils von einem Filz (17)umschlungen werden. Fiber web (4) is guided and dewatered after the wire section by a plurality of presses (21, 10), characterized in that the first press (21) through which the fibrous web (4) is guided to the headbox (2) with is equipped with a double nip, while the first press (21) by a screen roller (15) and by two Gautschwalzen (16), which are respectively pressed to form a nip against the screen roller (15) formed, wherein the screen roller (15) by a sieve (12) and the Gautschwalzen (16) are each wrapped by a felt (17).
2. Verfahren zur Entwässerung einer Faserstoffbahn (4) nach Anspruch 1 , dadurch gekennzeichnet, dass die Gautschwalzen (16) von einem 2. A method for dewatering a fibrous web (4) according to claim 1, characterized in that the Gautschwalzen (16) of a
gemeinsamen Filz (17) umschlungen werden. common felt (17) are entwined.
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass der Filz (17) zwischen dem ersten und dem zweiten Nip der ersten Presse (21 ) mit einem3. The method according to claim 2, characterized in that the felt (17) between the first and the second nip of the first press (21) with a
Rohrsauger (23) entwässert wird. Suction tube (23) is drained.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Faserstoffbahn (4) ohne losen Zug von der ersten Presse (21 ) in eine nachfolgende Schuhpresse (10) überführt wird, wobei die Bahnüberführung mit Hilfe einer Saugwalze (18) oder einer Rillenwalze (19) durchgeführt wird. 4. The method according to any one of claims 1 to 3, characterized in that the fibrous web (4) is transferred without loose train from the first press (21) in a subsequent shoe press (10), wherein the web transfer by means of a suction roll (18). or a grooved roller (19) is performed.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Faserstoffbahn (4) zwischen dem ersten und dem zweiten Nip der ersten Presse (21 ) durch einen Dampfblaskasten (22) erwärmt wird. 5. The method according to any one of claims 1 to 4, characterized in that the fibrous web (4) between the first and the second nip of the first press (21) by a steam blower box (22) is heated.
6. Vorrichtung zur Entwässerung einer Faserstoffbahn (4) mit einem 6. Apparatus for dewatering a fibrous web (4) with a
Stoffauflauf (2) und einer Siebpartie, wobei nach der Siebpartie zumindest eine erste Presse (21 ) angeordnet ist, durch die die Faserstoffbahn (4) geführt ist, dadurch gekennzeichnet, dass die erste Presse (21 ) mit einem Doppelnip ausgestattet ist, wobei die erste Presse (21 ) durch eine Siebwalze (15) und durch zwei Gautschwalzen (16), die jeweils zur Bildung eines Nips gegen die Siebwalze (15) angepresst Werden, gebildet ist, wobei die Siebwalze (15) von einem Sieb (12) und die Gautschwalzen (16) jeweils von einem Filz (17) umschlungen sind. Headbox (2) and a wire section, wherein after the wire section at least one first press (21) is arranged, through which the fibrous web (4) is guided, characterized in that the first press (21) is equipped with a double nip, wherein the first press (21) through a screen roller (15) and through two Gautschwalzen (16), each of which is pressed against the screen roller (15) to form a nip, is formed, wherein the screen roller (15) by a screen (12) and the Gautschwalzen (16) are each surrounded by a felt (17) ,
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Gautschwalzen (16) von einem gemeinsamen Filz (17) umschlungen sind. 7. Apparatus according to claim 6, characterized in that the Gautschwalzen (16) by a common felt (17) are looped.
8. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass zwischen dem ersten und dem zweiten Nip der ersten Presse (21 ) ein Rohrsauger (23) zur Trockensaugurig des Filzes (17) angeordnet ist. 8. The device according to claim 6, characterized in that between the first and the second nip of the first press (21) a tube suction (23) for Trockensaugurig of the felt (17) is arranged.
9. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch 9. Device according to one of claims 6 to 8, characterized
gekennzeichnet, dass zwischen der ersten Presse (21 ) und einer characterized in that between the first press (21) and a
nachfolgenden. Schuhpresse (10) eine Saugwalze (18) oder eine Rillenwalze (19) zur Bahnüberführung angeordnet ist. following. Shoe press (10) is arranged a suction roll (18) or a grooved roll (19) for web transfer.
10. Vorrichtung nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass zwischen dem ersten und zweiten Nip der ersten Presse (21 ) ein 10. Device according to one of claims 6 to 9, characterized in that between the first and second nip of the first press (21) a
Dampfblaskasten (22) installiert ist. Steam box (22) is installed.
EP11788760.4A 2010-10-27 2011-10-13 Device and method for drying fibrous material Active EP2633117B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0178210A AT509992B1 (en) 2010-10-27 2010-10-27 DEVICE AND METHOD FOR DRYING FIBROUS MATERIAL
PCT/AT2011/000425 WO2012054944A1 (en) 2010-10-27 2011-10-13 Device and method for drying fibrous material

Publications (2)

Publication Number Publication Date
EP2633117A1 true EP2633117A1 (en) 2013-09-04
EP2633117B1 EP2633117B1 (en) 2014-04-30

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Country Status (10)

Country Link
US (1) US9506692B2 (en)
EP (1) EP2633117B1 (en)
JP (1) JP5901029B2 (en)
CN (1) CN103189566B (en)
AT (1) AT509992B1 (en)
BR (1) BR112013009903B1 (en)
CA (1) CA2815874C (en)
ES (1) ES2487245T3 (en)
PT (1) PT2633117E (en)
WO (1) WO2012054944A1 (en)

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Publication number Priority date Publication date Assignee Title
AT509992B1 (en) 2010-10-27 2012-01-15 Andritz Ag Maschf DEVICE AND METHOD FOR DRYING FIBROUS MATERIAL
CN107541980B (en) * 2016-06-29 2023-06-20 昆明纳太科技有限公司 Paper machine and forming and drying mechanism thereof
EP3622112A1 (en) * 2017-05-10 2020-03-18 Voith Patent GmbH Device and method for producing a fibrous web

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Publication number Priority date Publication date Assignee Title
EP0652992B2 (en) * 1993-05-29 2000-11-02 J.M. Voith GmbH Press of paper machine for thin papers
FI98843C (en) 1995-10-03 1997-08-25 Valmet Corp A method and apparatus for removing water from a paper or board web by compression
EP0950759A3 (en) * 1998-04-15 2000-11-29 Voith Sulzer Papiertechnik Patent GmbH Pressing arrangement
FI109815B (en) * 1998-06-16 2002-10-15 Metso Paper Inc Device and method for drying cellulose
JP2000160494A (en) * 1998-11-24 2000-06-13 Ishikawajima Harima Heavy Ind Co Ltd Press apparatus for paper machine
FI109210B (en) * 1998-11-24 2002-06-14 Metso Paper Inc Method and apparatus for forming a cellulose web
AT412099B (en) * 2002-12-11 2004-09-27 Andritz Ag Maschf Press section of a papermaking machine, to extract water from the wet web, has a lower fourdrinier to carry the web through the initial water extraction stage and following press assemblies
AT509992B1 (en) 2010-10-27 2012-01-15 Andritz Ag Maschf DEVICE AND METHOD FOR DRYING FIBROUS MATERIAL

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CN103189566B (en) 2015-09-16
AT509992A4 (en) 2012-01-15
AT509992B1 (en) 2012-01-15
WO2012054944A1 (en) 2012-05-03
CA2815874A1 (en) 2012-05-03
BR112013009903A2 (en) 2020-07-07
JP5901029B2 (en) 2016-04-06
CN103189566A (en) 2013-07-03
US20130219739A1 (en) 2013-08-29
CA2815874C (en) 2018-08-28
EP2633117B1 (en) 2014-04-30
PT2633117E (en) 2014-07-31
BR112013009903B1 (en) 2021-06-08
ES2487245T3 (en) 2014-08-20
JP2013540912A (en) 2013-11-07

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