WO2005100682A1 - Machine destinee a la fabrication d'une bande de matiere fibreuse - Google Patents

Machine destinee a la fabrication d'une bande de matiere fibreuse Download PDF

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Publication number
WO2005100682A1
WO2005100682A1 PCT/EP2005/051286 EP2005051286W WO2005100682A1 WO 2005100682 A1 WO2005100682 A1 WO 2005100682A1 EP 2005051286 W EP2005051286 W EP 2005051286W WO 2005100682 A1 WO2005100682 A1 WO 2005100682A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
drying cylinder
fibrous web
hood
pressure hood
Prior art date
Application number
PCT/EP2005/051286
Other languages
German (de)
English (en)
Inventor
Thomas Gruber-Nadlinger
Stevan Lomic
Günter HALMSCHLAGER
Herbert Boden
Christoph Haase
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
Priority to EP05729611A priority Critical patent/EP1738021A1/fr
Publication of WO2005100682A1 publication Critical patent/WO2005100682A1/fr

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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
    • D21F5/004—Drying webs by contact with heated surfaces or materials
    • 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
    • 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
    • D21F5/044—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices using air hoods over the cylinders

Definitions

  • the invention relates to a machine for producing a paper, cardboard, tissue or other fibrous web with at least one heated drying cylinder, which is covered over part of its outer circumference by at least one pressure hood exerting pressure against the drying cylinder, and at which the fibrous web can be passed through together with at least one sieve and with an impermeable covering between the drying cylinder and the printing hood.
  • a drying arrangement for the continuous drying of a porous web is known from EP 0 949 377 A2.
  • the drying arrangement comprises a drying cylinder which is wrapped by the web over at least two thirds of its outer surface.
  • a plurality of rotating rollers are arranged, each of which has a hydraulic unit in its interior for applying a contact pressure against the drying cylinder.
  • DE 35 32 853 C2 describes a method and a device for drying a web of paper, cardboard or the like. Before it reaches a drying area, the web is subjected to a venting treatment while it lies against an intermediate belt which absorbs water and water vapor. The intermediate belt is guided around the cylinder in a drying area. The fibrous web is covered by a metal band as it rotates around the cylinder. The metal band is removed after leaving the
  • Intermediate belt is freed of condensed water after leaving the cylinder.
  • the fibrous web is passed between the intermediate belt and the metal belt around the cylinder while it is being cooled.
  • the metal strip is heated in the return loop, and the heated metal strip heats the outside of the fibrous web surrounding the cylinder in direct contact.
  • this object is achieved in that a guide element, in particular a guide roller, a guide shoe or a means for generating an overpressure, in particular an air foil, is arranged upstream and / or downstream of the drying cylinder and the pressure hood.
  • the strength properties of the fibrous web are improved.
  • the seal between the pressure hood and the drying cylinder takes place in the entire area of the pressure hood between the guide rollers or other guide elements.
  • the guide wafers or similar elements that perform the function of the guide rollers can be pressed onto the troclone cylinder and serve as an axial seal.
  • the guide rollers or similar elements are not used for the sealing, but the sealing takes place essentially over the machine width by means of separate sealing elements.
  • the combination of the drying cylinder and a printing hood or a plurality of drying hoods arranged on the circumference of the drying cylinder is arranged after the press section and / or within the drying section or after the drying section or after an application unit or after the calender, with at least one heated drying cylinder is provided, which is covered over part of its outer circumference by at least one pressure hood exerting a contact pressure against the drying cylinder.
  • the fibrous web is passed between the drying cylinder and the pressure hood together with at least one sieve and with an impermeable covering.
  • Such an arrangement can replace several conventional drying cylinders. If several of these are used In principle, arrangements can always be dried on the same side of the fibrous web.
  • the same side is fed onto the drying cylinder. If a more uniform surface is desired on the two sides of the fibrous web, the web is passed on the alternating side between the combinations of the drying cylinders and the printing hoods.
  • the arrangement can also be used in conjunction with the conventional drying cylinders.
  • a drying section comprising at least one combination of a drying cylinder and a pressure hood, it is often possible to save a Yankee cylinder, a calender and / or a size press, since the fibrous web is given excellent properties by the fast and efficient drying.
  • the pressure hood in which a fluid medium, in particular water, flows at a temperature between 40 and 100 ° C., is arranged above or below the covering.
  • a fluid medium in particular water
  • the pressure in the pressure hood is preferably between 0.1 and 10 bar.
  • the drying cylinder is heated with steam, the steam pressure of which can be between 3 and 15 bar, the steam temperature being between 100 and 250 ° C. Due to this fact and due to the removal of the moisture of the fibrous web through the at least one screen belt, the combination of a drying cylinder with a printing hood has a multiple heating capacity under the conditions described above of a conventional drying cylinder.
  • the invention has the advantage over the so-called Condebelt process that the vapor pressure in the drying cylinder and the pressure of the medium in the pressure hood can be set independently of one another.
  • a hood pressure in the range between 0.2 and 4 bar can be used for the production of a cardboard web, which should have a relatively large volume, while a hood pressure between 0.5 and 10 bar is used for packaging paper.
  • the invention achieves higher drying rates with a shorter residence time than with conventional cylinder drying.
  • the invention has the advantage that less space is required for a drying capacity corresponding to a conventional drying device.
  • the wrap angle of the fibrous web with respect to the drying cylinder is preferably between 180 and 350 °.
  • the drying according to the invention can be used in the dry content range between 35 and 95%.
  • the fibrous web When drying through the combination of the drying cylinder and the pressure hood, the fibrous web is mechanically pressed and compressed at the same time. Most of the steam escaping from the fibrous web during heating condenses on the fine or coarse screen or on the impermeable belt. This releases heat to the fluid in the pressure hood. A heat exchanger is provided to recover the heat given off by the fibrous web to the medium present in the pressure hood. Part of the drying of the fibrous web is also achieved by evaporating the moisture from the fibrous web after leaving the area between the drying cylinder and the pressure hood.
  • the pressure hood can be arranged above or below the drying cylinder. The more favorable load case is below the cylinder, because then the pressure force of the pressure hood counteracts the weight of the drying cylinder. In the case of a sequence of several combinations in succession, however, the pressure hood will expediently alternate above and below.
  • This arrangement of the pressure hoods can also be used to control whether the fibrous web, in particular the paper web, should be given the same drying and smoothness on both sides or whether more drying on one side is desired. Because the side of the fibrous web facing the drying cylinder is extremely smooth. To achieve a fibrous web that is smooth on both sides, the use of at least two pressure hoods arranged alternately with respect to the drying cylinder is necessary.
  • the arrangement of the printing hoods opposite the drying cylinder - whether on the underside or on the top of the drying cylinder - does not necessarily have an influence on which side the fibrous web is dried.
  • Another advantage of the invention is that the web is compressed during the drying process as an inherent consequence of drying. This enables the desired surface properties of the fibrous web to be achieved without the need to use a particularly large number of chemicals.
  • the fibrous web is transferred between the drying cylinder and the pressure hood or another means which applies pressure to the drying cylinder, the simultaneous salting in of pressure and temperature over a certain longer period of time causes the fibrous material to melt and plasticize in the superficial area of the fibrous web.
  • the partial compression and cornification of the fibrous material reduces its ability to absorb moisture.
  • the surface is sealed by the high heating power; Hemicellulose and lignin melt and thereby compact the surface.
  • a size press or a Yankee cylinder or a calender can be replaced by using a single drying cylinder with a pressure hood or a plurality of drying cylinders with pressure hoods.
  • a cardboard web Due to the high pressure and the high temperature, high web strengths can be achieved, which can be measured in an SCT, burst or tear length test.
  • a cardboard web is improved in terms of its bending stiffness, smoothness and splitting strength (plybond).
  • the drying cylinder is preceded by a means for generating a negative pressure in the at least one screen.
  • a means for generating a negative pressure in the at least one screen can be a suction roller for deflecting the at least one screen before entering the area between the drying cylinder and the pressure hood.
  • a stationary suction zone is arranged in the suction roller or on its outside.
  • a stationary suction element such as e.g. B. a suction shoe or a means for generating an air cushion, in particular by means of excess pressure, for deflecting the fibrous web in the direction of the drying cylinder.
  • the fibrous web on the side opposite the guide element can also be pressed against the guide element by a pressing unit or a pressing device.
  • the invention also relates to a machine in which the guide elements, in particular guide rollers, which are arranged at the inlet and at the outlet of the fibrous web into and out of the printing hood, each form a closed nip with the drying cylinder.
  • the guide elements preferably each form an axial seal of the pressure hood, so that separate axial seals of the pressure hood are not required.
  • the nip at the outlet of the fibrous web from the pressure hood can contribute to the gradual reduction in pressure in the fibrous web and thus to avoid delamination.
  • the guide roller at the outlet can be driven to apply tension to the fibrous web.
  • the fibrous web at the exit of the drying cylinder can be supported by a take-off scraper.
  • the take-off scraper can be a pale scraper.
  • a means for sucking air out of the at least one sieve is arranged before the fibrous web enters the region between the pressure hood and the drying cylinder.
  • the means is, for example, a transfer foil, a suction box or another suction means which is connected to a vacuum source, for example a transfer suction device, i. H. a suction box for the railway handover.
  • Elements for web stabilization can be provided both before and after the drying cylinder.
  • the negative pressure can also be generated according to the injector principle, air being initially blown upwards in the middle of the corresponding arrangement, which then leads to the result that a negative pressure is created at the edge of the arrangement, which attracts and thereby stabilizes the fibrous web.
  • the invention also relates to a machine in which the pressure hood is sealed against the covering by a sealing device consisting of a seal holder, a pressure hose and sealing strips on the circumference of the drying cylinder and in the axial direction.
  • the invention also relates to the use of various screens and fabrics for the drying device.
  • the purpose of the dryer fabrics is to store the moisture evaporated from the fibrous web in the form of steam and / or condensate and to carry it out of the area between the drying cylinder and the pressure hood.
  • Sieve conditioning can take place in the return of the dryer fabrics. This means that the moisture can be sucked out or blown out of the sieve.
  • the two dryer fabrics can also be combined into a single screen.
  • at least the fine screen, which is directly adjacent to the fibrous web, and the impermeable covering are designed as endless belts, while the coarse screen can also be sewn together between the fine screen and the covering.
  • the covering can be a coated plastic or metal fabric tape or a steel tape.
  • an impermeable layer made of a plastic, a plastic or metal fabric or a coated or filled plastic or metal fabric tape can also be used.
  • the essential properties of this covering are watertightness, good thermal conductivity and a favorable friction pairing with the sealing material, which ensures good sealing and low wear.
  • the fabric and partly also the coarse screen are cooled by the medium, in particular the water, in the pressure hood in order to facilitate the condensation of steam in the screens.
  • the screens can also be cooled outside of the pressure hood, for example with the aid of a cooling fluid. Cooling within the pressure hood is therefore not absolutely necessary.
  • Each sieve or belt has its own regulation of the wire tension and the wire run, or the belt tension and the wire run.
  • the band tension of the impermeable covering is, for example, between 0.5 and 10 kN / m; the sieves can also have a tension between 0.5 and 10 kN / m.
  • FIG. 1 shows a longitudinal section of a pressure hood 2 placed on a drying cylinder 3 with a sealing arrangement
  • FIG. 2 shows a cross section of another pressure hood 2 placed on a drying cylinder
  • FIG. 3 shows an overall view of a drying cylinder 3 in connection with a pressure hood 2
  • FIG. 5 shows a detailed front view
  • FIGS. 6-9 further views of drying cylinders 3 with pressure hoods 2.
  • a sealing arrangement 1 (FIG. 1) seals a stationary pressure hood 2 against a drying cylinder 3 rotating under it. (For reasons of simplicity of illustration, the fibrous web, sieves and an impermeable band moved along by it on the outer surface of the drying cylinder 3 are not shown in FIG. 1.) It goes without saying that the pressure hood 2 can also be arranged below the drying cylinder 3.
  • the pressure hood 2 contains in its interior 4 a fluid under pressure, in particular water or one or a gas mixture or gas or another medium, which is under an excess pressure of at least 0.2 bar.
  • the sealing arrangement 1 is received by a wall 5 of the pressure hood 2. The wall thus forms a sealing strip holder.
  • the seal arrangement 1 comprises two seals 6, 7 arranged between the wall 5 and the surface of the drying cylinder 3.
  • the medium contained in the interior 4 escapes due to the overpressure contained in the interior 4 and / or due to that between the underside of the seal 6 and Shell surface of the drying cylinder 3 existing gap in the direction of arrows A, B in an intermediate chamber 8 between the two seals 6 and 7.
  • the intermediate chamber 8 is connected to a bore 9 in the wall 5, through which the medium, which is no longer under pressure or only in the intermediate chamber 8 is still under a significantly lower pressure than in the interior 4, for example under a pressure of less than 0.5 bar, can be pumped out or drained off.
  • a gas-tight intermediate chamber 8 can also be provided.
  • the seal 7 serves as a secondary seal.
  • the seal 7 presses against the drying cylinder 3 with a low, set contact pressure.
  • the contact pressure is selected such that it is ensured that the pressure medium does not escape from the intermediate chamber 8 or at least in small quantities into the outside space.
  • the contact pressure exerted by the seals 6, 7 against the outer surface of the drying cylinder 3 is adjusted by means of springs.
  • a medium under pressure such as. B. a molded hose 10, 11 or through a gas-tight, pressurized gas chamber, instead of the springs by means of a pneumatic or hydraulic cylinder on the seals 6 and 7 respectively.
  • the sealing arrangement 1 described above consisting of a primary seal in the form of the seal 6 and a secondary seal, the seal 7, is attached to the pressure hood 2 (FIG. 2) placed on the drying cylinder 3 in the form of a single continuous sealing system 12 both on longitudinal edges 13, 14 of the pressure hood 2 parallel to the longitudinal axis of the drying cylinder 3, d. H. attached essentially transversely to the web running direction, and also on the front edges (not shown) of the printing hood 2 relative to the drying cylinder 3.
  • a fibrous web 18 is guided over the drying cylinder 3 together with screens 15, 16 under a tight covering 17 which is impermeable to liquids and gases.
  • Two guide rollers 19, 20 are attached below the drying cylinder 3 at the same distance from the vertical central axis of the drying cylinder 3.
  • the guide rollers 19, 20 also have a guiding function for the Fibrous web 18, the sieves 15, 16 and the covering 17 in that they are guided around the guide rollers 19, 20.
  • the guide rollers 19, 20 do not necessarily have to be pressed against the drying cylinder 3, they can also form an open nip with the latter.
  • the sealing system 12 seals the inside of the pressure hood 2 on a part of the circumference of the drying cylinder 3 against the impermeable covering 17, which shields the underlying sieves 15, 16 and the fibrous web 18. If the contact pressure with which the guide rollers 19, 20 press against the drying cylinder 3 can be changed, for example by actuation by hydraulic or pneumatic cylinders acting on the bearings of the guide rollers 19, 20, the pressing of the sealing system 12 with respect to the clothing can also be achieved 17 change and set.
  • the drying cylinder 3 (FIG. 3) is mounted within a machine frame 21.
  • the sieve 15 or the sieve 16 is conditioned, moisture is sucked out and / or blown out of it.
  • the screens 15, 16 and the covering 17 can be cleaned with spray pipes.
  • a sieve flow regulator 24 is also provided.
  • a transfer foil or a foil plate 25 (FIGS. 3, 4) is arranged obliquely with respect to the fine screen 15.
  • the foil plate 25 creates a vacuum region 26 in the sieve 15 and in the adjacent fibrous web 18, so that the latter releases its moisture better in the region between the drying cylinder 3 and the pressure hood 2, since this has a lower vapor pressure at a lower pressure.
  • a suction device such as. B. a suction chamber on the screen 15 to create a negative pressure.
  • the pressure hood 2 (FIG. 5) each has a sealing device 1 on its end faces and on its axial sides (cf. FIG. 1).
  • the guide rollers 19, 20 are arranged so that they can move with respect to the drying cylinder 3 by means of swivel devices 27, 28.
  • a removal scraper 29 removes scraps of paper and impurities that have settled on the outer surface of the drying cylinder 3.
  • the fibrous web 18 is successively guided with the same side over two drying cylinders 3 arranged one behind the other and dried in the area of the printing hoods 2.
  • the fibrous web 18 is first drawn off from a felt belt or a wire belt 33a via a suction roll 33 sucked from the inside and then guided over the first of the two track cylinders 3.
  • the fibrous web 18 is guided separately from the covering 17 together with the screen 15 by means of a suction roll 35 sucked in from the outside.
  • the fibrous web 18 then runs past a transfer foil foil plate 25 in order to generate a negative pressure therein. Before the inlet of the next drying cylinder 3 and after this, suction rollers 35 which are vacuumed from the outside are arranged again. The fibrous web 18 is drawn off from the wire 15 by means of a suction roll sucked from the inside and transferred again to a felt or wire belt 33a.
  • the two track cylinders 3 have a common screen 15 and a common impermeable covering 17, which are passed over both drying cylinders 3.
  • a drying cylinder 3 is shown, in which the screen 15 and the covering 17 are each equipped with tensioning devices 22 in order to adjust the tension.
  • Swivel devices 27, 28 are arranged on the guide rollers 19, 20 in order to set the nip between them and the drying cylinder 3.
  • a removal scraper 29 removes dirt that has got stuck on the drying cylinder 3.
  • Moisture is extracted from the sieve by a suction element 30. Compressed air is blown on the opposite side through a blow pipe 31 to support this process. This arrangement is preceded by a spray tube 32, which sprays a moist medium for cleaning.
  • FIG. 8 in contrast to the embodiment shown in FIG. 6, the fibrous web 18 is guided over the two drying cylinders 3 such that both sides of the fibrous web 18 are dried in succession.
  • a belt pressure unit 34 ensures that the fibrous web 18 is easily transferred to the first track cylinder 3 via the guide roller 19.
  • a vacuum transfer belt 36 for example a fibron belt, runs along the fibrous web 18 between the two drying cylinders 3 in order to support the further drying of the fibrous web 18 by generating a negative pressure therein.
  • the vacuum transfer belt 36 preferably acts only on the edge region of the fibrous web
  • FIG. 9 there is also a belt pressure unit 34.
  • suction elements 30, for example pipe suction devices are arranged both on the screen 15 and on the covering 17 in order to remove moisture from them.
  • a blow pipe 31 and a spray pipe 32 are additionally provided.
  • Clamping devices 22 are also present.
  • a belt pressure unit 34 is also placed on the guide roller 19.
  • flat belts are preferably used, which are guided over small rollers in relation to the guide element. It is preferably provided that one of these rollers comprises a tensioning unit. In principle, these belts press the fibrous web 18 against the corresponding guide element - instead of the guide roller
  • a conductive shoe or another element can also be provided - and thus prevent the fiber web from detaching due to the centrifugal force.
  • Both guide rollers 19, 20 are equipped with devices for adjusting their nips with respect to the drying cylinder 3.
  • a single band can also be provided be, which has a layer structure and combines the properties of the screens 15, 16 and the covering 17 in itself.
  • This tape prevents rewetting, e.g. B. by condensate, the fibrous web 18 and can be realized for example from a vapor but not water-permeable material, such as. B. from polyethylene tetrafluoroethylene. Materials are also suitable that absorb water on one side but do not release it again on this side.

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  • Paper (AREA)

Abstract

L'invention concerne une machine destinée à la fabrication d'une bande de papier, de carton, de tissu ou autre matière fibreuse (18), comprenant un cylindre de séchage chauffé (3), recouvert sur une partie de sa périphérie externe, par au moins une calotte de pression exerçant une pression de compression sur le cylindre de séchage (3), la bande de matière fibreuse (18) se déplaçant, conjointement avec au moins un tamis (15, 16) et un habillage imperméable (17), entre le cylindre de séchage (3) et la calotte de pression (2), machine caractérisée en ce qu'il est prévu, en amont du cylindre de séchage (3) et de la calotte de pression (2), des moyens de production d'une dépression dans au moins un tamis (15, 16).
PCT/EP2005/051286 2004-04-13 2005-03-21 Machine destinee a la fabrication d'une bande de matiere fibreuse WO2005100682A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05729611A EP1738021A1 (fr) 2004-04-13 2005-03-21 Machine destinee a la fabrication d'une bande de matiere fibreuse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410017806 DE102004017806A1 (de) 2004-04-13 2004-04-13 Maschine zur Herstellung einer Faserstoffbahn
DE102004017806.2 2004-04-13

Publications (1)

Publication Number Publication Date
WO2005100682A1 true WO2005100682A1 (fr) 2005-10-27

Family

ID=34962762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/051286 WO2005100682A1 (fr) 2004-04-13 2005-03-21 Machine destinee a la fabrication d'une bande de matiere fibreuse

Country Status (3)

Country Link
EP (1) EP1738021A1 (fr)
DE (1) DE102004017806A1 (fr)
WO (1) WO2005100682A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1780331A1 (fr) * 2005-10-28 2007-05-02 Voith Patent GmbH Ensemble de séchage
EP1785524A1 (fr) * 2005-11-12 2007-05-16 Voith Patent GmbH Dispositif de lissage d'une bande fibreuse
EP1793038A2 (fr) * 2005-12-03 2007-06-06 Voith Patent GmbH Dispositif d'étanchéité
EP1900872A1 (fr) * 2006-09-13 2008-03-19 Voith Patent GmbH Procédé pour maintenir une bande propre
WO2008049661A3 (fr) * 2006-10-27 2008-08-14 Voith Patent Gmbh Capot de pression comportant un dispositif d'étanchéité amovible
WO2008128890A1 (fr) * 2007-04-19 2008-10-30 Voith Patent Gmbh Machine à papier
WO2009024186A1 (fr) * 2007-08-21 2009-02-26 Metso Paper, Inc. Appareil de pressage pour une machine de fabrication de papier ou de carton pour retirer des fluides à partir d'une bande par pressage, et procédé pour traiter une bande dans une machine de fabrication de papier ou de carton
DE102008000021A1 (de) 2008-01-09 2009-07-16 Voith Patent Gmbh Verfahren zur Reduzierung des Verschleißes eines endlos umlaufenden Bandes in einer Maschine zur Herstellung von Faserstoffbahnen und Vorrichtung zur Behandlung einer Faserstoffbahn
EP2138630A2 (fr) 2008-06-26 2009-12-30 Voith Patent GmbH Cylindre
EP2138631A1 (fr) 2008-06-26 2009-12-30 Voith Patent GmbH Installation de séchage et cylindre
DE102008002657A1 (de) 2008-06-26 2009-12-31 Voith Patent Gmbh Verfahren zur Herstellung einer eine Innen-und eine Außenschale umfassenden Doppelschale eines Zylinders
DE102008002655A1 (de) 2008-06-26 2009-12-31 Voith Patent Gmbh Verfahren zum Trocknen einer laufenden Faserstoffbahn
WO2010043576A1 (fr) * 2008-10-13 2010-04-22 Voith Patent Gmbh Procédé et dispositif pour sécher et lisser une bande de matière fibreuse
EP2186938A1 (fr) 2008-11-14 2010-05-19 Voith Patent GmbH Agencement d'étanchéité pour un corps cylindrique, notamment un cylindre de séchage
EP2305882A2 (fr) 2009-09-30 2011-04-06 Voith Patent GmbH Procédé et machine destinés à la fabrication d'une bande de matière fibreuse
WO2012007212A1 (fr) 2010-07-16 2012-01-19 Voith Patent Gmbh Procédé et machine pour fabriquer une bande de matière fibreuse
DE102010031440A1 (de) 2010-07-16 2012-01-19 Voith Patent Gmbh Verfahren und Maschine zur Herstellung einer Faserstoffbahn
DE102010031447A1 (de) 2010-07-16 2012-01-19 Voith Patent Gmbh Verfahren und Maschine zur Herstellung einer Faserstoffbahn

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE102007018529A1 (de) 2007-04-19 2008-10-23 Voith Patent Gmbh Dichtungsanordnung für eine Trockeneinrichtung in einer Maschine zur Herstellung einer Faserstoffbahn

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EP0254666A1 (fr) * 1986-07-18 1988-01-27 Beloit Corporation Dispositif pour le transfert d'une bande à une section de séchage
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US5899002A (en) * 1996-04-12 1999-05-04 Valmet Corporation Method and arrangement for utilizing energy of drying apparatus for fiber web
US6189233B1 (en) * 1997-06-03 2001-02-20 Voith Sulzer Papiermaschinen Gmbh Dryer section
EP1136618A2 (fr) * 2000-03-13 2001-09-26 Ichikawa Co.,Ltd. Bande pour presse à patin
US20020060030A1 (en) * 1998-09-18 2002-05-23 Voith Sulzer Papiertechnik Patent Gmbh Process for sealing pressure zones in a paper-making machine

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US4461095A (en) * 1981-02-19 1984-07-24 Oy Tampella A.B. Method of continuous drying of a paper or other porous web and a drying device for applying this method
EP0254666A1 (fr) * 1986-07-18 1988-01-27 Beloit Corporation Dispositif pour le transfert d'une bande à une section de séchage
EP0421911A2 (fr) * 1989-10-05 1991-04-10 Beloit Corporation Dispositif de transfert pour transférer la bande directrice d'une bande de papier
WO1993015268A1 (fr) * 1992-01-29 1993-08-05 Asea Brown Boveri Inc. Procede et appareil augmentant la vitesse de sechage d'un materiau en bande
EP0727521A2 (fr) * 1995-02-14 1996-08-21 Valmet Corporation Appareil pour le séchage d'une bande fibreuse et section de séchage d'une machine à papier
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US6189233B1 (en) * 1997-06-03 2001-02-20 Voith Sulzer Papiermaschinen Gmbh Dryer section
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EP1136618A2 (fr) * 2000-03-13 2001-09-26 Ichikawa Co.,Ltd. Bande pour presse à patin

Cited By (27)

* Cited by examiner, † Cited by third party
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EP1780331A1 (fr) * 2005-10-28 2007-05-02 Voith Patent GmbH Ensemble de séchage
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EP1793038A2 (fr) * 2005-12-03 2007-06-06 Voith Patent GmbH Dispositif d'étanchéité
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DE102008002663A1 (de) 2008-06-26 2009-12-31 Voith Patent Gmbh Zylinder
DE102008002656A1 (de) 2008-06-26 2009-12-31 Voith Patent Gmbh Trocknungsanordnung
DE102008002655A1 (de) 2008-06-26 2009-12-31 Voith Patent Gmbh Verfahren zum Trocknen einer laufenden Faserstoffbahn
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EP2305882A3 (fr) * 2009-09-30 2011-05-18 Voith Patent GmbH Procédé et machine destinés à la fabrication d'une bande de matière fibreuse
WO2012007212A1 (fr) 2010-07-16 2012-01-19 Voith Patent Gmbh Procédé et machine pour fabriquer une bande de matière fibreuse
DE102010031440A1 (de) 2010-07-16 2012-01-19 Voith Patent Gmbh Verfahren und Maschine zur Herstellung einer Faserstoffbahn
DE102010031447A1 (de) 2010-07-16 2012-01-19 Voith Patent Gmbh Verfahren und Maschine zur Herstellung einer Faserstoffbahn
DE102010031450A1 (de) 2010-07-16 2012-01-19 Voith Patent Gmbh Verfahren und Maschine zur Herstellung einer Faserstoffbahn

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