EP0364242A3 - Headbox - Google Patents

Headbox Download PDF

Info

Publication number
EP0364242A3
EP0364242A3 EP19890310400 EP89310400A EP0364242A3 EP 0364242 A3 EP0364242 A3 EP 0364242A3 EP 19890310400 EP19890310400 EP 19890310400 EP 89310400 A EP89310400 A EP 89310400A EP 0364242 A3 EP0364242 A3 EP 0364242A3
Authority
EP
European Patent Office
Prior art keywords
fiber suspension
headbox
diffuser
inlet
chamber
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.)
Ceased
Application number
EP19890310400
Other languages
German (de)
French (fr)
Other versions
EP0364242A2 (en
Inventor
Luc Y. Fortier
Andre G. Piette
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.)
Groupe Laperriere and Verreault Inc
Original Assignee
Groupe Laperriere and Verreault Inc
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 Groupe Laperriere and Verreault Inc filed Critical Groupe Laperriere and Verreault Inc
Publication of EP0364242A2 publication Critical patent/EP0364242A2/en
Publication of EP0364242A3 publication Critical patent/EP0364242A3/en
Ceased 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

Landscapes

  • Paper (AREA)

Abstract

A headbox comprising an inlet chamber (16) communicating with a source of fiber suspension, an outlet chamber (18) with a discharge opening (20) for the fiber suspension and a diffuser (22) to establish a fluid path between the inlet and the outlet chambers. The diffuser includes a cluster of tubes (28), each being divided in two successive portions (44, 46) of larger cross-sectional area separated by a step-like transition. Each tube comprises a stem (32) mounted in the initial portion thereof to define a ring shaped fiber suspension passage (38).
EP19890310400 1988-10-12 1989-10-11 Headbox Ceased EP0364242A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000579854A CA1320860C (en) 1988-10-12 1988-10-12 Headbox
CA579854 1988-10-12

Publications (2)

Publication Number Publication Date
EP0364242A2 EP0364242A2 (en) 1990-04-18
EP0364242A3 true EP0364242A3 (en) 1991-04-24

Family

ID=4138892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890310400 Ceased EP0364242A3 (en) 1988-10-12 1989-10-11 Headbox

Country Status (2)

Country Link
EP (1) EP0364242A3 (en)
CA (1) CA1320860C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6425984B2 (en) 1995-10-20 2002-07-30 Institute Of Paper Science And Technology, Inc. Layered fiber structure in paper products
US5792321A (en) * 1995-10-20 1998-08-11 Institute Of Paper Science & Technology, Inc. Methods and apparatus to enhance paper and board forming qualities
US6153057A (en) * 1995-10-20 2000-11-28 Institute Of Paper Science And Technology, Inc. Methods and apparatus to enhance paper and board forming qualities
US6368460B1 (en) 1995-10-20 2002-04-09 Institute Of Paper Science And Technology, Inc. Method and apparatus to enhance paper and board forming qualities
US6406595B1 (en) 1995-10-20 2002-06-18 Institute Of Paper Science And Technology, Inc. Methods and apparatus to enhance paper and board forming qualities

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970644A (en) * 1958-06-02 1961-02-07 Webster David Richan Liquid dispersion conduit
US3296066A (en) * 1963-11-13 1967-01-03 Black Clawson Co Headbox for papermaking machine and stock distributor thereto
FR1571410A (en) * 1967-04-15 1969-06-20
FR2097903A5 (en) * 1970-06-15 1972-03-03 Ahlstroem Oy
WO1985004432A1 (en) * 1984-04-03 1985-10-10 Feldmühle Aktiengesellschaft Aeration installation
AT384633B (en) * 1986-05-12 1987-12-10 Albert Hans Flowbox for papermaking machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970644A (en) * 1958-06-02 1961-02-07 Webster David Richan Liquid dispersion conduit
US3296066A (en) * 1963-11-13 1967-01-03 Black Clawson Co Headbox for papermaking machine and stock distributor thereto
FR1571410A (en) * 1967-04-15 1969-06-20
FR2097903A5 (en) * 1970-06-15 1972-03-03 Ahlstroem Oy
WO1985004432A1 (en) * 1984-04-03 1985-10-10 Feldmühle Aktiengesellschaft Aeration installation
AT384633B (en) * 1986-05-12 1987-12-10 Albert Hans Flowbox for papermaking machines

Also Published As

Publication number Publication date
EP0364242A2 (en) 1990-04-18
CA1320860C (en) 1993-08-03

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