EP1285992B1 - Dispositif pour le traitement d'une bande fibreuse - Google Patents

Dispositif pour le traitement d'une bande fibreuse Download PDF

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Publication number
EP1285992B1
EP1285992B1 EP02011797A EP02011797A EP1285992B1 EP 1285992 B1 EP1285992 B1 EP 1285992B1 EP 02011797 A EP02011797 A EP 02011797A EP 02011797 A EP02011797 A EP 02011797A EP 1285992 B1 EP1285992 B1 EP 1285992B1
Authority
EP
European Patent Office
Prior art keywords
sealing
holder
sealing element
blade
web
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
EP02011797A
Other languages
German (de)
English (en)
Other versions
EP1285992A1 (fr
Inventor
Peter Kahl
Uwe Joos
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
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1285992A1 publication Critical patent/EP1285992A1/fr
Application granted granted Critical
Publication of EP1285992B1 publication Critical patent/EP1285992B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21F5/046—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices using pocket ventilation systems
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/906—Seal for article of indefinite length, e.g. strip, sheet

Definitions

  • the invention relates to a device for treating a fibrous web such as in particular a paper and / or board web, in which the fibrous web is guided along at least one support belt, in particular a dewatering belt, press belt, wire and / or the like via at least one moving or stationary support surface and on the side facing away from such a support surface side of the fibrous web at least one sealing device is provided which comprises a received in a holder sealing element, which is arranged in close proximity to the support band, without touching it, wherein the sealing element laterally, ie can be led out of the holder transversely to the web running direction.
  • Such devices with contactable sealing bodies are for example in the DE-A-197 16 131.6 , of the US-B-6,247,247 as well as the US-A-4,185,399 described.
  • the sealing device in question is often provided in the area of a ventilation device, in particular a stabilizer box or the like.
  • an additional vacuum zone can be provided in the upper region of such a stabilizer box.
  • a particular fixedly mounted on the box seal can be provided.
  • the aim of the invention is to provide a device of the type mentioned, in which the sealing element can be easily replaced, d. H. replacement is also possible without removal of the stabilizer box. If necessary, such a change should also be possible behind the chair part.
  • a device for treating a fibrous web such as in particular a paper and / or board web, in which the fibrous web together with at least one support belt, in particular a dewatering belt, press belt, wire and / or the like is guided over at least one moving or stationary support surface and on the side facing away from such a support surface side of the fibrous web at least one sealing device is provided which comprises a received in a holder sealing element, which is arranged in close proximity to the support band without touching it, that is, while maintaining a gap between the sealing element and the support band, wherein the sealing element laterally, ie transversely to the web running direction, can be led out of the holder.
  • the wear part forming a sealing element can thus be easily pulled laterally out of the holder, without having to adjacent facilities of the paper machine, in particular an adjacent stabilizer box or the like must be removed with. It may be necessary to remove a side seal, a side cover or a side air knife before pulling out the sealing element, but this is possible with minimal effort.
  • the holder is expediently provided with a corresponding guide along which the sealing element can be pulled laterally out of the holder.
  • the sealing device can be provided, for example, in the region of a ventilation device used in particular in a press section or a dry party, such as, in particular, a steam blower box, a suction box, a stabilizer, ventilation installations and / or the like.
  • a ventilation device used in particular in a press section or a dry party, such as, in particular, a steam blower box, a suction box, a stabilizer, ventilation installations and / or the like.
  • the sealing element is formed by a flexible sealing blade.
  • the sealing blade received on the edge in the holder is acted upon by a contact pressure element so that it is arched out of the maintenance and / or change position towards the support band and thereby assumes its operating position, in which a sealing portion in the immediate vicinity of Support band is.
  • the unloaded sealing blade received at the edge in the holder is advantageously at least substantially planar, with which point it assumes its maintenance or replacement position.
  • the distance of the sealing portion of the sealing element is adjustable to the support band on the contact pressure.
  • the pressing element is preferably formed by a Anpressklinge, which advantageously has a greater rigidity than the sealing blade.
  • the pressing element can be accommodated, for example, in a recess of a support, which is preferably formed by an air-technical device.
  • the recess may be at least partially covered by the Anpressklinge.
  • the pressing element is also laterally, d. H. can be led out of the holder transversely to the direction of web travel.
  • the holder may be provided again with a corresponding guide.
  • both the sealing element and the pressing element can be pulled laterally out of the holder provided with corresponding guides and thus laterally out of the paper machine.
  • the holder can be adjusted via at least one actuator, for. B. be pivoted.
  • actuator for. B. be pivoted.
  • the use of hydraulic, pneumatic and / or electromechanical actuators is conceivable.
  • the holder may for example also be hinged, so that the sealing element is removable after opening the holder from this.
  • the sealing device separates in an air-technical device two zones which can be acted upon with different pressure.
  • sealing device in combination with a ventilation device used in the drying section, for. B. stabilizer box, as viewed in the web running direction second seal is provided in particular over the machine width, in particular to separate an upper and a lower vacuum zone from each other.
  • the two vacuum zones can be connected, for example, with separate vacuum sources.
  • inlet-side seal can be formed for example by a flexible, floating seal, a mechanical sealing strip or an air knife.
  • the sealing device can in particular also for other vacuum boxes, z. B. in the press section, be provided.
  • the sealing element is expediently in operation by a lock, z. B. locking pin (etc.), secured against lateral slipping.
  • the holder for the sealing element having the holder may be rigid or resilient or resiliently connected to the ventilation device.
  • the sealing element is provided with a crowning, that is viewed over the machine width at a different distance from the support belt, for example sieve has.
  • a sieve deflection between edge and center can be compensated.
  • the sealing element may in particular made of plastic, for. As fiberglass, Teflon, CFRP or the like, or of another plastic, or made of metal.
  • the two vacuum zones may be laterally sealed, for example, via air knives and / or mechanical cover plates, which are removable or adjustable, in particular displaceable, for releasing the sealing element.
  • the sealing element may extend over the entire machine width or even over only a part of the machine width or be divided in width into at least two zones.
  • FIG. 1 shows a schematic partial view of a drying section of a device for treating a fibrous web with two seals provided in the region of a drying cylinder in the upper region of a stabilizer box to form an upper and a lower vacuum zone.
  • the device in question is used to treat a fibrous web 10 such as in particular a paper and / or board web.
  • Fig. 1 two successive drying cylinders 12, 14 are indicated, which rotate in the direction of arrows F and over which, together with the fibrous web 10, a support belt 16 is guided, which is formed in the present case by a drying wire.
  • the guided along with the fibrous web 10 first on the left drying cylinder 12 support belt 14 runs with the fibrous web 10 in a discharge area A from the outer peripheral surface of the drying cylinder 12 formed support surface 18 to then in the web running direction L, for example, by a merely indicated outer stabilizer box 20 sucked perforated and / or grooved guide roller 22 to be supplied.
  • the stabilizer box 20 may in particular be a suction box or the like.
  • the sealing arrangement described in more detail below can also be provided in the area of other ventilation devices.
  • a first seal 24 is provided in the web running direction L before the discharge area A.
  • This first, inlet-side seal can be, for example, a flexible, floating seal, a mechanical sealing strip or an air knife.
  • a second seal or sealing device 26 arranged downstream of the drain region A is provided so that an upper and a lower vacuum zone 28 or 30 result.
  • the lower vacuum zone 30 serves to stabilize the web guide.
  • the upper vacuum zone 28 serves in particular as so-called "ProRelease" - or detachment zone. The arrangement thus serves a total of a controlled detachment and stabilization of the fibrous web 10th
  • the sealing device 26 comprises a sealing element received in a holder 34 (cf., in particular, also FIGS. 2 and 3), which in the following case is designed as a flexible sealing blade 35.
  • the sealing blade 35 between an operating position / cf. 2) in which a sealing portion 36 of the sealing element 34 is arranged in the immediate vicinity of the support band, and a maintenance and / or change position (see FIG. 3) adjustable, in which the sealing portion 36 has a greater distance from the support band 16.
  • the sealing blade 35 in particular when it assumes its maintenance or change position, laterally, d. H transversely to the web running direction L, led out of the holder 34.
  • This forming a wear part sealing blade 35 can thus be easily pulled laterally out of the holder 34, without requiring the stabilization box 20 must be removed.
  • a side cover, a side air knife or the like must be removed, but this is possible with minimal effort.
  • the holder 34 which is provided in the present case on the stabilizer box 20, is provided with a corresponding guide 37, along which the sealing blade 35 can be pulled laterally out of the holder 34.
  • the sealing blade 35 is received in its two transverse to the web running direction L edges in the guide 37 of the holder 34. It is acted upon by a pressing member 38 so that it is curved to the support band 16 inside and thereby assumes its operating position.
  • the relieved, their maintenance or change position engaging sealing blade 35 is at least substantially planar.
  • the distance of the sealing portion 36 of the sealing blade 35 to the support band 16 in the desired manner is adjustable.
  • the pressing element 38 is formed by a Anpressklinge, said Anpressklinge 38 has a greater rigidity than the sealing blade 35.
  • This pressing element 38 formed by a blade is accommodated in a recess 40 of the stabilizer box 20, which is at least partially covered by the pressing blade 35.
  • the pressing member 38 is again laterally, d. H. transversely to the web running direction L, pulled out of the holder 34.
  • a corresponding guide is again provided for this pressure element 38.

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (24)

  1. Dispositif pour le traitement d'une nappe fibreuse (10) comme en particulier une nappe de papier et/ou de carton, dans lequel la nappe fibreuse (10) est guidée conjointement avec au moins une bande de support (16) comme en particulier une bande d'égouttage, une bande de pressage, une bande de toile et/ou similaire, sur au moins une surface de support (18) mobile ou stationnaire, et dans lequel, du côté de la nappe fibreuse (10) opposé à une telle surface de support (18), est prévu au moins un dispositif d'étanchéité (26) qui comprend un élément d'étanchéité (35) reçu dans une fixation (34) et disposé à proximité immédiate de la bande de support (16) sans venir en contact avec elle, l'élément d'étanchéité (35) pouvant être ressorti latéralement, c'est-à-dire transversalement par rapport à la direction d'avance de la nappe (L), hors de la fixation (34),
    caractérisé en ce que
    l'élément d'étanchéité (35) est formé par une lame d'étanchéité flexible et la lame d'étanchéité reçue au niveau du bord dans la fixation (34) peut être sollicitée par le biais d'un élément de pressage (38) de telle sorte qu'elle soit courbée hors de la position d'entretien et/ou de remplacement vers la bande de support (16) et qu'elle adopte ainsi sa position de fonctionnement, dans laquelle une portion d'étanchéité (36) de l'élément d'étanchéité (35) est à proximité immédiate de la bande de support (16).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la fixation (34) est pourvue d'un guide correspondant (37) le long duquel l'élément d'étanchéité (35) peut être ressorti latéralement hors de la fixation (34).
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    le dispositif d'étanchéité (26) est disposé dans la région d'un dispositif de ventilation (20) inséré notamment dans une section de pressage ou une section de séchage, comme en particulier une caisse soufflante à vapeur, une caisse aspirante, un stabilisateur, des éléments encastrés de ventilation et/ou similaires.
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la lame d'étanchéité non sollicitée reçue au niveau du bord dans la fixation (34) est au moins essentiellement plane et prend ainsi sa position d'entretien ou de remplacement.
  5. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la distance de la portion d'étanchéité (36) de l'élément d'étanchéité (35) par rapport à la bande de support (16) peut être ajustée par le biais de l'élément de pressage (38).
  6. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de pressage (38) est formé par une lame de pressage.
  7. Dispositif selon la revendication 6,
    caractérisé en ce que
    la lame de pressage (38) possède une plus grande rigidité que la lame d'étanchéité (35).
  8. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de pressage (38) est monté dans un logement (40) d'un support formé de préférence par un dispositif de ventilation (20).
  9. Dispositif selon la revendication 8,
    caractérisé en ce que
    le logement (40) est recouvert au moins en partie par la lame de pressage (38).
  10. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément de pressage (38) peut aussi être ressorti latéralement, c'est-à-dire transversalement à la direction d'avance de la nappe (L), hors de la fixation (34).
  11. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la fixation (34) peut être déplacée par le biais d'au moins un organe de réglage (48).
  12. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la fixation (34) peut être rabattue ou pivotée.
  13. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif d'étanchéité (26) sépare deux zones dans un dispositif de ventilation, lesquelles peuvent être sollicitées par une dépression différente.
  14. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif d'étanchéité (26) est prévu en combinaison avec un dispositif de ventilation (20) inséré dans la section de séchage, par exemple des caisses stabilisatrices, sous forme de deuxième système d'étanchéité, vu dans la direction d'avance de la nappe (L), notamment sur la largeur de la machine, afin de séparer en particulier une zone de vide supérieure et une zone de vide inférieure (28, respectivement 30) l'une de l'autre.
  15. Dispositif selon la revendication 14,
    caractérisé en ce que
    les deux zones de vide (28, 30) sont connectées à des sources de dépression séparées.
  16. Dispositif selon la revendication 14,
    caractérisé en ce que les deux zones de vide (28, 30) sont connectées à une source de dépression commune et les pressions dans les zones de vide peut être ajustées séparément notamment par le biais de volets ou similaires.
  17. Dispositif selon l'une quelconque des revendications 14 à 16,
    caractérisé en ce que
    le premier système d'étanchéité (24) du côté de l'entrée, considéré dans la direction d'avance de la nappe (L), est formé par un joint d'étanchéité flottant flexible, une baguette d'étanchéité mécanique ou une lame d'air.
  18. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'étanchéité (35) est fixé en fonctionnement par un blocage, par exemple des boulons enfichables, des pinces, etc., pour éviter un glissement latéral.
  19. Dispositif selon l'une quelconque des revendications 2 à 18,
    caractérisé en ce que
    la fixation (34) présentant le guide (37) pour l'élément d'étanchéité (35) est connectée rigidement ou de manière flexible ou élastiquement au dispositif de ventilation (20).
  20. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'étanchéité (35) est pourvu d'une partie bombée.
  21. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'étanchéité (35) se compose de plastique, par exemple de plastique renforcé de fibres de verre, de téflon, de plastique renforcé de fibres de carbone ou similaires, ou de métal.
  22. Dispositif selon l'une quelconque des revendications 14 à 21,
    caractérisé en ce que
    les deux zones de vide (28, 30) sont étanchéifiées latéralement par le biais de lames d'air et/ou de plaques de recouvrement mécaniques, qui peuvent être enlevées, ou déplacées, notamment par coulissement, pour libérer l'élément d'étanchéité.
  23. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'étanchéité (35) s'étend sur toute la largeur de la machine.
  24. Dispositif selon l'une quelconque des revendications 1 à 22,
    caractérisé en ce que
    l'élément d'étanchéité ne s'étend que sur une partie de la largeur de la machine ou est divisé en au moins deux zones sur la largeur.
EP02011797A 2001-08-20 2002-05-28 Dispositif pour le traitement d'une bande fibreuse Expired - Lifetime EP1285992B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10140801 2001-08-20
DE10140801A DE10140801A1 (de) 2001-08-20 2001-08-20 Vorrichtung zur Behandlung einer Faserstoffbahn

Publications (2)

Publication Number Publication Date
EP1285992A1 EP1285992A1 (fr) 2003-02-26
EP1285992B1 true EP1285992B1 (fr) 2007-09-26

Family

ID=7696040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02011797A Expired - Lifetime EP1285992B1 (fr) 2001-08-20 2002-05-28 Dispositif pour le traitement d'une bande fibreuse

Country Status (6)

Country Link
US (1) US6740204B2 (fr)
EP (1) EP1285992B1 (fr)
JP (1) JP4248813B2 (fr)
AT (1) ATE374283T1 (fr)
CA (2) CA2398558A1 (fr)
DE (2) DE10140801A1 (fr)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
DE10140800A1 (de) * 2001-08-20 2003-03-06 Voith Paper Patent Gmbh Vorrichtung zur Behandlung einer Faserstoffbahn
FI115232B (fi) * 2002-11-19 2005-03-31 Metso Paper Inc Tiivistejärjestely liikkuvaa kudosta vasten
DE10322519A1 (de) * 2003-05-19 2004-12-09 Voith Paper Patent Gmbh Bahnführungseinrichtung
DE10337080A1 (de) * 2003-08-12 2005-03-10 Voith Paper Patent Gmbh Vorrichtung zur Behandlung einer Faserstoffbahn
FI20050596A0 (fi) * 2005-06-06 2005-06-06 Metso Paper Inc Järjestely ja menetelmä kuivatussylinterien välisen taskutilan tiivistämiseksi paperikoneessa tai vastaavassa
US20070098984A1 (en) * 2005-11-01 2007-05-03 Peterson James F Ii Fiber with release-material sheath for papermaking belts
DE102005055215A1 (de) * 2005-11-19 2007-05-24 Voith Patent Gmbh Vorrichtung zur Behandlung einer Materialbahn
FI119029B (fi) * 2006-01-30 2008-06-30 Metso Paper Inc Menetelmä ja laite kuiturainakoneen, kuten paperi- tai kartonkikoneen kuivatusosassa
FI11634U1 (fi) * 2017-03-09 2017-04-27 Valmet Technologies Oy Ajettavuuskomponentti ja järjestely kuiturainakoneen kuivatusosaa varten
CN114541165B (zh) * 2022-01-28 2024-01-05 江苏理文造纸有限公司 一种距离可调的稳纸系统及调节方法

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Publication number Priority date Publication date Assignee Title
US3649449A (en) * 1970-01-27 1972-03-14 Tampella Oy Ab Papermaking machine suction box with yieldably biased cover
US4185399A (en) * 1978-10-02 1980-01-29 E.B. Eddy Forest Products, Ltd. Doctor blade, drying or sealing assembly
FI76608C (fi) * 1982-07-13 1988-11-10 Ahlstroem Valmet Press med laongt nyp.
DE4033901A1 (de) * 1990-10-25 1992-04-30 Voith Gmbh J M Anordnung in einer ein-sieb-trockengruppe
FI965277L (fi) * 1996-12-31 1998-07-01 Valmet Corp Paperikoneen imulaatikko ja menetelmä paperikoneen imulaatikossa
US6192597B1 (en) * 1997-04-17 2001-02-27 Voith Sulzer Papiermaschinen Gmbh Device for treating a fibrous pulp web as well as a sealing device for a device of this kind
DE19716131A1 (de) * 1997-04-17 1998-10-22 Voith Sulzer Papiermasch Gmbh Vorrichtung zur Behandlung einer Faserstoffbahn
CA2287889C (fr) * 1997-04-23 2007-07-10 Valmet Corporation Caisse soufflante s'utilisant dans la section de sechage d'une machine a papier et procede de serrage d'une poche pourvue d'une caisse soufflante dans la section de sechage d'une machine a papier
DE19817202A1 (de) * 1998-04-17 1999-10-21 Voith Sulzer Papiertech Patent Dichtungseinrichtung
FI110625B (fi) * 1999-02-22 2003-02-28 Metso Paper Inc Puhalluslaite paperikoneessa tai vastaavassa
FI4349U1 (fi) * 1999-10-22 2000-02-28 Valmet Corp Paperikoneen kuivatusosassa käytettävään puhalluslaatikkoon sovitettav a tiivistävä suutin
DE20017933U1 (de) * 2000-10-19 2000-12-28 Valmet Corp., Helsinki Abdichtdüse in einem Blaskasten in der Trockenpartie einer Papiermaschine
US6725569B2 (en) * 2001-01-30 2004-04-27 Enerquin Air Inc. Device and method for ventilating an offset pocket space in a papermaking machine

Also Published As

Publication number Publication date
ATE374283T1 (de) 2007-10-15
DE10140801A1 (de) 2003-03-06
DE50210960D1 (de) 2007-11-08
US6740204B2 (en) 2004-05-25
US20030034138A1 (en) 2003-02-20
CA2398917A1 (fr) 2003-02-20
JP2003064591A (ja) 2003-03-05
CA2398558A1 (fr) 2003-02-20
JP4248813B2 (ja) 2009-04-02
EP1285992A1 (fr) 2003-02-26

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