EP0711869B1 - Caisse de tête à plusieurs couches - Google Patents

Caisse de tête à plusieurs couches Download PDF

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Publication number
EP0711869B1
EP0711869B1 EP95117555A EP95117555A EP0711869B1 EP 0711869 B1 EP0711869 B1 EP 0711869B1 EP 95117555 A EP95117555 A EP 95117555A EP 95117555 A EP95117555 A EP 95117555A EP 0711869 B1 EP0711869 B1 EP 0711869B1
Authority
EP
European Patent Office
Prior art keywords
lamella
machine
flowbox
main part
tip
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
EP95117555A
Other languages
German (de)
English (en)
Other versions
EP0711869A3 (fr
EP0711869A2 (fr
Inventor
Wolfgang Ruf
Frank Fey
Thomas Dietz
Klaus Pimiskern
Gerhard Wernlein
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 EP0711869A2 publication Critical patent/EP0711869A2/fr
Publication of EP0711869A3 publication Critical patent/EP0711869A3/fr
Application granted granted Critical
Publication of EP0711869B1 publication Critical patent/EP0711869B1/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
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D21F1/028—Details of the nozzle section
    • 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
    • D21F9/006—Complete machines for making continuous webs of paper of the twin-wire type paper or board consisting of two or more layers
    • 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
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/09—Uses for paper making sludge
    • Y10S162/10—Computer control of paper making variables
    • 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
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/09—Uses for paper making sludge
    • Y10S162/10—Computer control of paper making variables
    • Y10S162/11—Wet end paper making variables

Definitions

  • the invention relates to a multi-layer headbox with the features specified in the preamble of claim 1. These are known from DE 43 29 810 A1.
  • the lamella in a multi-layer headbox has the task of separating the two material flows so separately keep that no mixing of different Currents come about until finally the currents as undisturbed as possible into a single flow be united, at the same time if possible none Disruptions in this flow course may occur.
  • DE 43 23 050 A1 proposed to the applicant to design the lamella in such a way that there is an increased convergence in the flow channel, so that by increasing the flow velocity in this area is a reduction in interference due to friction turbulence.
  • US-A-4 812 209 describes a multi-layer headbox comprising a fin for separating two material flows.
  • the slat is made of one upstream main body as well as a downstream one Top built up.
  • the two parts mentioned are each one and Made from the same material, not from two or more, interconnected individual parts with different materials.
  • US-A-4 543 162 also describes a multi-layer headbox. Also slats are provided here.
  • FIG. 1a shows a lip element 7, which has a covering 9. However, nothing is said about them used materials, still over a sharpened pointed edge.
  • FR-A-2 500 861 also relates to a multi-layer headbox pointed slats. However, nothing is known about the type and structure of the slats testified, especially not in the end area.
  • FIGS. 2, 3 and 4 each show designs according to the invention Top.
  • FIG. 1 ' A multi-layer headbox with two can be seen in FIG Current guiding walls 1, 1 '.
  • a lamella 2 is used to separate Material flows 3,3 ', which flow from known turbulence generators 5, 5'.
  • a stationary partition 7 can also be seen. The lamella 2 is over a Hinge 4 hung on the stationary partition 7.
  • a thin metal sheet 9.6 is attached on one side.
  • the metal sheet 9.6 protrudes over the free end of the main lamella part 8.6; it is by means of mechanical processing, e.g. B. grinding with with a sharp pointed edge. This can in the case damage is reground. If the entire slat end with a uniform inclined surface are provided, for. B. grinding along the level S.
  • the entire lamella is in highly chemically resistant to the stock suspension made. This has the outer surfaces touched by the fabric the slat permanently high smoothness, so that Trapping fibers or other material particles is definitely avoided.
  • the Outer surface of the slat also smooth transitions from the main part (preferably made of plastic) Top.
  • the The main part of the lamella is made of carbon fiber reinforced Made of plastic.
  • Such a material gives the slat main part a very high thermal Stability. That is, the shape of the slat main body remains unchanged even if it is with (possibly different) heated fiber suspension streams comes into contact.
  • the uniformity of the shape of the Slat end significantly increased, mainly in Connection with that through a relative Thin coating formed slat tip.

Landscapes

  • Paper (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Magnetic Heads (AREA)

Claims (7)

  1. Buse de sortie de matière multicouches pour l'amenée d'au moins deux courants de suspensions de matières fibreuses ayant la largeur de la machine à la section de formage d'une machine de fabrication de papier, avec les caractéristiques suivantes:
    1.1 une chambre de tuyère est limitée par deux parois de guidage de courant (1, 1') ayant la largeur de la machine, qui se terminent en une fente de sortie ayant la largeur de la machine, et par deux parois latérales;
    1.2 dans la chambre de tuyère, il est prévu au moins une lamelle (2) ayant la largeur de la machine, avec la fonction de paroi de séparation, qui maintient séparés l'un de l'autre les au moins deux courants de suspensions de matières fibreuses jusque dans la région de la fente de sortie;
    1.3 la lamelle (2) comprend une partie principale (8.6 - 8.8) et une pointe formée d'une matière dure;
    1.4 la lamelle (2) se rétrécit vers son extrémité;
    1.5 à l'extrémité aval du recouvrement est formée une arête vive de pointe;
    caractérisée par les caractéristiques suivantes:
    1.6 la pointe est formée par un recouvrement en une tôle métallique (9.6 - 9.8), qui est intégré dans au moins une des faces de la lamelle (2);
    1.7 la tôle métallique (9.6 - 9.8) se trouve sur une première face de la partie principale (8.6 - 8.8) de la lamelle, s'étend sur la partie principale (8.6 - 8.8) de la lamelle et est affûtée au moyen d'un usinage mécanique.
  2. Buse de sortie de matière suivant la revendication 1, caractérisée en ce que l'autre face de l'extrémité de la partie principale (8.6 - 8.8) de la lamelle présente également un recouvrement en une tôle métallique (9.7', 9.8').
  3. Buse de sortie de matière suivant la revendication 1 ou 2, caractérisée en ce que la pointe est intégrée sans saillie, c'est-à-dire au moins de façon à peu près hydrauliquement lisse, dans la partie principale (8.6 - 8.8) de la lamelle.
  4. Buse de sortie de matière suivant la revendication 1 ou 2, caractérisée en ce que la face extérieure de la lamelle (2) présente un retrait à la transition de la partie principale (8.6 - 8.8) avec la pointe.
  5. Buse de sortie de matière suivant l'une quelconque des revendications 1 - 4, caractérisée en ce que l'extrémité effilée de la lamelle présente des recouvrements (9.8, 9.8') sur les deux faces, et en ce que les extrémités des recouvrements (9.7, 9.7'; 9.8, 9.8') sont disposées en décalage l'une par rapport à l'autre dans la direction de l'écoulement.
  6. Buse de sortie de matière suivant l'une quelconque des revendications 1 - 5, caractérisée en ce que la partie principale (8.6 - 8.8) de la lamelle est fabriquée en une matière plastique de préférence thermiquement stable, par exemple une matière plastique renforcée par des fibres de carbone.
  7. Buse de sortie de matière suivant l'une quelconque des revendications 1 - 6, caractérisée en ce que les extrémités des parois de guidage de courant (1, 1') sont libres de baguettes localement déplaçables ou déformables, et en ce que, pour corriger le profil transversal du grammage de la bande à fabriquer, il est prévu plusieurs conduites réparties sur la largeur de la machine pour mélanger des "courants de matières secondaires" variables avec une densité de matière différente du "courant de matières principal".
EP95117555A 1994-11-10 1995-11-08 Caisse de tête à plusieurs couches Expired - Lifetime EP0711869B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4440079 1994-11-10
DE4440079A DE4440079C2 (de) 1994-11-10 1994-11-10 Mehrschichten-Stoffauflauf

Publications (3)

Publication Number Publication Date
EP0711869A2 EP0711869A2 (fr) 1996-05-15
EP0711869A3 EP0711869A3 (fr) 1997-04-16
EP0711869B1 true EP0711869B1 (fr) 2002-03-27

Family

ID=6532917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95117555A Expired - Lifetime EP0711869B1 (fr) 1994-11-10 1995-11-08 Caisse de tête à plusieurs couches

Country Status (4)

Country Link
US (1) US5645689A (fr)
EP (1) EP0711869B1 (fr)
AT (1) ATE215144T1 (fr)
DE (2) DE4440079C2 (fr)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0681057B1 (fr) * 1994-04-29 2002-08-28 Voith Paper Patent GmbH Caisse de tête à plusieurs couches
SE506931C2 (sv) † 1996-06-12 1998-03-02 Valmet Karlstad Ab Flerskiktsinloppslåda för en pappersmaskin
US6146501A (en) * 1997-12-15 2000-11-14 Kimberly Clark Worldwide Cross-machine direction stiffened dividers for a papermaking headbox
AT406172B (de) 1998-02-05 2000-03-27 Andritz Patentverwaltung Vorrichtung zur zufuhr einer faserstoffsuspension auf eine entwässerungseinrichtung
AT406171B (de) * 1998-02-05 2000-03-27 Andritz Patentverwaltung Vorrichtung zur zufuhr einer faserstoffsuspension auf eine entwässerungseinrichtung
DE10051802A1 (de) * 2000-10-18 2002-04-25 Voith Paper Patent Gmbh Lamelle eines Stoffauflaufs einer Papier-, Karton- oder Tissuemaschine
DE10106684A1 (de) * 2001-02-14 2002-08-29 Voith Paper Patent Gmbh Lamelle eines Stoffauflaufs einer Papier-, Karton- oder Tissuemaschine
DE10133552A1 (de) * 2001-07-11 2003-01-23 Voith Paper Patent Gmbh Lamelle eines Stoffauflaufs einer Papier- oder Kartonmaschine
DE10223398A1 (de) * 2002-05-25 2003-12-04 Voith Paper Patent Gmbh Blattbildungsvorrichtung
DE10256510A1 (de) * 2002-12-04 2004-06-24 Voith Paper Patent Gmbh Stoffauflauf einer Papier- oder Kartonmaschine zur Herstellung einer Faserstoffbahn
DE10326304A1 (de) * 2003-06-11 2005-02-03 Voith Fabrics Patent Gmbh Verfahren und Vorrichtung zur Herstellung einer Tissuebahn
US7785446B2 (en) 2004-10-05 2010-08-31 Toray Industries, Inc. Flow sheet for paper machine and method of manufacturing the same
US8057567B2 (en) 2004-11-05 2011-11-15 Donaldson Company, Inc. Filter medium and breather filter structure
US8021457B2 (en) 2004-11-05 2011-09-20 Donaldson Company, Inc. Filter media and structure
CA2586636C (fr) 2004-11-05 2013-10-01 Donaldson Company, Inc. Milieu filtre et structure de filtre
EA011777B1 (ru) 2005-02-04 2009-06-30 Дональдсон Компани, Инк. Фильтр и система вентиляции картера
CN101163534A (zh) * 2005-02-22 2008-04-16 唐纳森公司 气溶胶分离器
FI20065639L (fi) * 2006-10-05 2008-04-06 Metso Paper Inc Paperikoneen tai vastaavan perälaatikon lamelli
CN101652168A (zh) 2007-02-22 2010-02-17 唐纳森公司 过滤元件及其方法
WO2008103821A2 (fr) 2007-02-23 2008-08-28 Donaldson Company, Inc. Élément de filtre formé
DE102007036535A1 (de) 2007-08-02 2009-02-05 Voith Patent Gmbh Stoffauflauf einer Maschine zur Herstellung einer mehrschichtigen Faserstoffbahn
DE102008043145A1 (de) * 2008-10-24 2010-04-29 Voith Patent Gmbh Zweischichtenstoffauflauf für eine Maschine zur Herstellung einer zweischichtigen Faserstoffbahn
EP2199459A1 (fr) 2008-12-16 2010-06-23 Voith Patent GmbH Système de formation de feuille pour une machine destinée à la fabrication d'une bande de matière fibreuse multicouche
US8267681B2 (en) 2009-01-28 2012-09-18 Donaldson Company, Inc. Method and apparatus for forming a fibrous media
BR112013018772B1 (pt) 2011-01-28 2021-01-19 Donaldson Company, Inc. método e aparelho para formação de meios fibrosos
WO2012103547A1 (fr) 2011-01-28 2012-08-02 Donaldson Company, Inc. Procédé et appareil de formation d'un support fibreux
EP2707542A4 (fr) 2011-05-11 2015-04-08 Hollingsworth & Vose Co Systèmes et procédés de fabrication de bandes fibreuses
EP2736713B1 (fr) 2011-07-27 2019-06-26 Hollingsworth & Vose Company Procédé et système pour réaliser des bandes fibreuses
US8753483B2 (en) 2011-07-27 2014-06-17 Hollingsworth & Vose Company Systems and methods for making fiber webs
BR112021003625A2 (pt) 2018-10-01 2021-05-18 Outlier Solutions, Llc produtos de papel isolado repulpáveis e métodos de fabricação e uso dos mesmos
DE102019126296A1 (de) * 2019-09-30 2021-04-01 Voith Patent Gmbh Lamelle für einen Stoffauflauf und Verfahren zur Herstellung einer Lamelle
WO2021067355A1 (fr) 2019-10-01 2021-04-08 Outlier Solutions Llc Appareil, systèmes et procédés de fabrication de produits en papier isolés retriturables

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DE250726C (fr) *
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US3796155A (en) * 1970-08-31 1974-03-12 W Schluckebier Device for dosed dispensing of a liquid medium, for instance, a dye, to rollers in printing mechanisms of printing machines
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DE3107926A1 (de) * 1981-03-02 1982-11-04 Escher Wyss Gmbh, 7980 Ravensburg Verfahren zum ausbilden einer mehrlagigen papierbahn in einem doppelsiebformer und doppelsiebformer zur durchfuehrung des verfahrens
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CA1230251A (fr) * 1983-11-25 1987-12-15 Jose J. A. Rodal Regulateur flottant de debit sur caisse de tete
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DD250726A1 (de) * 1986-07-01 1987-10-21 Univ Dresden Tech Stoffauflauf zum gleichzeitigen stoffauftrag uebereinanderliegender unterschiedlicher suspensionen
DE3741603A1 (de) * 1987-12-09 1989-06-22 Voith Gmbh J M Stoffauflauf fuer eine papiermaschine od.dgl.
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DE4323263C2 (de) 1993-07-12 2001-11-29 Voith Paper Patent Gmbh Verfahren zur sektionalen Beeinflussung der Stoffdichte und der Faserorientierung in einem Stoffauflauf einer Papiermaschine und Stoffauflauf zur Durchführung des Verfahrens
DE4323050C1 (de) * 1993-07-12 1995-02-16 Voith Gmbh J M Düse eines Mehrschichtenstoffauflaufes und Verfahren zum vermischungsarmen Zusammenführen mindestens zweier Stoffsuspensionsströme
DE4329810C2 (de) 1993-09-03 1997-02-06 Voith Gmbh J M Geometrie des Lamellenendes eines Stoffauflaufes

Also Published As

Publication number Publication date
DE4440079C2 (de) 1997-10-02
EP0711869A3 (fr) 1997-04-16
DE59510123D1 (de) 2002-05-02
EP0711869A2 (fr) 1996-05-15
DE4440079A1 (de) 1996-05-23
US5645689A (en) 1997-07-08
ATE215144T1 (de) 2002-04-15

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