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EP0812951A3 - Process and headbox for a papermaking machine - Google Patents

Process and headbox for a papermaking machine Download PDF

Info

Publication number
EP0812951A3
EP0812951A3 EP97106692A EP97106692A EP0812951A3 EP 0812951 A3 EP0812951 A3 EP 0812951A3 EP 97106692 A EP97106692 A EP 97106692A EP 97106692 A EP97106692 A EP 97106692A EP 0812951 A3 EP0812951 A3 EP 0812951A3
Authority
EP
European Patent Office
Prior art keywords
die
der
headbox
sind
des
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
EP97106692A
Other languages
German (de)
French (fr)
Other versions
EP0812951A2 (en
EP0812951B1 (en
Inventor
Helmut Heinzmann
Wolfgang Ruf
Helmut Sterz
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 Sulzer Papiermaschinen 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 Sulzer Papiermaschinen GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0812951A2 publication Critical patent/EP0812951A2/en
Publication of EP0812951A3 publication Critical patent/EP0812951A3/en
Application granted granted Critical
Publication of EP0812951B1 publication Critical patent/EP0812951B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D21F1/026—Details of the turbulence section
    • 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

Landscapes

  • Paper (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und einen Stoffauflauf für eine Papiermaschine mit einer Strömungskammer, die wenigstens annähernd gleich der Arbeitsbreite des Papiermaschinensiebes ist, und der eine Auslaufdüse mit einem Auslaufspalt nachgeschaltet ist;

  • mit Strömungselementen, die in der Strömungskammer angeordnet sind; die von der Suspension berührten Flächen der Strömungselemente sind während des Betriebes des Stoffauflaufes veränderbar;
  • die stromabwärtigen Enden der Strömungselemente sind ohne Einfluß auf die Weite des Auslaufspaltes.
    • Figure 00000001
    The invention relates to a method and a headbox for a paper machine with a flow chamber which is at least approximately equal to the working width of the paper machine screen and which is followed by an outlet nozzle with an outlet gap;
  • with flow elements which are arranged in the flow chamber; the areas of the flow elements touched by the suspension can be changed during operation of the headbox;
  • the downstream ends of the flow elements have no influence on the width of the outlet gap.
    • Figure 00000001
    EP97106692A 1996-05-25 1997-04-23 Process and headbox for a papermaking machine Expired - Lifetime EP0812951B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19621258 1996-05-25
    DE19621258A DE19621258C1 (en) 1996-05-25 1996-05-25 Papermaking machine stock inlet

    Publications (3)

    Publication Number Publication Date
    EP0812951A2 EP0812951A2 (en) 1997-12-17
    EP0812951A3 true EP0812951A3 (en) 1998-04-01
    EP0812951B1 EP0812951B1 (en) 2003-11-05

    Family

    ID=7795408

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97106692A Expired - Lifetime EP0812951B1 (en) 1996-05-25 1997-04-23 Process and headbox for a papermaking machine

    Country Status (3)

    Country Link
    EP (1) EP0812951B1 (en)
    CA (1) CA2206023A1 (en)
    DE (2) DE19621258C1 (en)

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19908973A1 (en) * 1999-03-02 2000-09-07 Voith Sulzer Papiertech Patent Process for regulating the tear length ratio of a paper web and paper machine produced
    DE10324711A1 (en) * 2003-05-30 2004-12-30 Voith Paper Patent Gmbh headbox

    Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4133713A (en) * 1977-10-11 1979-01-09 The Procter & Gamble Company Microturbulence generator for papermachine headbox
    EP0300288A1 (en) * 1987-07-18 1989-01-25 Neue Bruderhaus Maschinenfabrik GmbH Trailing member for a papermaking machine headbox
    EP0526259A1 (en) * 1991-06-21 1993-02-03 Kimberly-Clark Corporation Extended flexible headbox slice
    US5277765A (en) * 1992-06-18 1994-01-11 Voith, Inc. Headbox with a vertical partition between perforated rolls
    WO1994020678A1 (en) * 1993-03-06 1994-09-15 J.M. Voith Gmbh Jet-speed control in a multi-layer headbox

    Family Cites Families (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3514372A (en) * 1966-11-29 1970-05-26 Beloit Corp Headbox method and means for blending of multiple jets
    AT305754B (en) * 1970-02-18 1973-03-12 Voith Gmbh J M Headbox for paper machines
    US3843470A (en) * 1970-08-31 1974-10-22 Beloit Corp Flexible trailing elements in a paper-making machine headbox having projections thereon extending into the slurry flow
    DE3227218C2 (en) * 1982-07-21 1984-10-18 Escher Wyss Gmbh, 7980 Ravensburg Multi-layer headbox
    DE4321697C2 (en) * 1993-06-30 2002-05-23 Voith Paper Patent Gmbh Turbulence insert of a paper machine
    DE4402625A1 (en) * 1994-01-31 1994-06-09 Voith Gmbh J M Stock inlet flow guide - has an air hose in the mounting for the guide wall to prevent build-up

    Patent Citations (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4133713A (en) * 1977-10-11 1979-01-09 The Procter & Gamble Company Microturbulence generator for papermachine headbox
    EP0300288A1 (en) * 1987-07-18 1989-01-25 Neue Bruderhaus Maschinenfabrik GmbH Trailing member for a papermaking machine headbox
    EP0526259A1 (en) * 1991-06-21 1993-02-03 Kimberly-Clark Corporation Extended flexible headbox slice
    US5277765A (en) * 1992-06-18 1994-01-11 Voith, Inc. Headbox with a vertical partition between perforated rolls
    WO1994020678A1 (en) * 1993-03-06 1994-09-15 J.M. Voith Gmbh Jet-speed control in a multi-layer headbox

    Also Published As

    Publication number Publication date
    DE19621258C1 (en) 1997-10-16
    EP0812951A2 (en) 1997-12-17
    DE59710938D1 (en) 2003-12-11
    CA2206023A1 (en) 1997-11-25
    EP0812951B1 (en) 2003-11-05

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