EP0690167A3 - Spectional pulp-feeding for the headbox of a papermaking machine - Google Patents

Spectional pulp-feeding for the headbox of a papermaking machine Download PDF

Info

Publication number
EP0690167A3
EP0690167A3 EP95108955A EP95108955A EP0690167A3 EP 0690167 A3 EP0690167 A3 EP 0690167A3 EP 95108955 A EP95108955 A EP 95108955A EP 95108955 A EP95108955 A EP 95108955A EP 0690167 A3 EP0690167 A3 EP 0690167A3
Authority
EP
European Patent Office
Prior art keywords
spectional
headbox
pulp
feeding
papermaking machine
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
EP95108955A
Other languages
German (de)
French (fr)
Other versions
EP0690167A2 (en
EP0690167B1 (en
Inventor
Albrecht Dr Meinecke
Helmut Heinzmann
Wolfgang Ruf
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 EP0690167A2 publication Critical patent/EP0690167A2/en
Publication of EP0690167A3 publication Critical patent/EP0690167A3/en
Application granted granted Critical
Publication of EP0690167B1 publication Critical patent/EP0690167B1/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
    • D21F1/08—Regulating consistency
    • 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)
  • Accessories For Mixers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

Stock is supplied to the breast box of a paper machine by a number of distributor feeds across the width of the machine. In at least one of the feeds (main stream) there is a restrictor followed by a feed (side stream) of liquid (e.g. stock suspension, dilution water or water) at an angle. The angle is chosen so that a small change in the rate of flow of the side stream results in a large corresponding or opposing change in the total flow (main stream plus side stream). <IMAGE>
EP95108955A 1994-06-30 1995-06-10 Spectional pulp-feeding for the headbox of a papermaking machine Expired - Lifetime EP0690167B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4422907A DE4422907C2 (en) 1994-06-30 1994-06-30 Sectional feed of the headbox of a paper machine
DE4422907 1994-06-30

Publications (3)

Publication Number Publication Date
EP0690167A2 EP0690167A2 (en) 1996-01-03
EP0690167A3 true EP0690167A3 (en) 1997-03-19
EP0690167B1 EP0690167B1 (en) 2004-08-18

Family

ID=6521900

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108955A Expired - Lifetime EP0690167B1 (en) 1994-06-30 1995-06-10 Spectional pulp-feeding for the headbox of a papermaking machine

Country Status (7)

Country Link
US (1) US5683551A (en)
EP (1) EP0690167B1 (en)
JP (1) JPH08170291A (en)
AT (1) ATE274099T1 (en)
CA (1) CA2152830A1 (en)
DE (2) DE4422907C2 (en)
FI (1) FI113554B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998036126A1 (en) * 1997-02-14 1998-08-20 Voith Sulzer Papiermaschinen Gmbh Device and method for forming a pulp layer
DE19718034A1 (en) * 1997-04-29 1998-11-05 Voith Sulzer Papiermasch Gmbh Stock inlet
US5904809A (en) * 1997-09-04 1999-05-18 Ahlstrom Paper Group Oy Introduction of fiber-free foam into, or near, a headbox during foam process web making
DE19843728A1 (en) 1998-09-24 2000-03-30 Voith Sulzer Papiertech Patent Method and device for keeping the low consistency strand of a headbox system clean
DE19843729A1 (en) 1998-09-24 2000-03-30 Voith Sulzer Papiertech Patent Control of the lateral shrinkage profile of a running paper or cardboard web uses on-line mapping to set the composition of the fiber suspension flows by sections at the stock inlet across the machine width
DE19906062A1 (en) * 1999-02-12 2000-08-17 Voith Sulzer Papiertech Patent Method and device for producing a material web
DE19908898A1 (en) 1999-03-02 2000-09-07 Voith Sulzer Papiertech Patent Process for metering a fluid medium into a suspension stream of a headbox and headbox
FI119559B (en) * 2007-06-01 2008-12-31 Upm Kymmene Corp Procedure for treating pulp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639823A1 (en) * 1986-11-21 1988-06-01 Voith Gmbh J M Headbox for papermachines or the like
DE4019593A1 (en) * 1990-06-20 1992-01-09 Voith Gmbh J M FABRIC DRAIN FOR PAPER MACHINES
DE9205637U1 (en) * 1992-04-25 1992-06-11 J.M. Voith Gmbh, 7920 Heidenheim Headbox for producing a paper web with variable injection
DE4211291A1 (en) * 1992-04-03 1993-10-07 Voith Gmbh J M Mixing device for mixing two liquids at a constant mixture volume flow to supply the headbox of a paper machine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1965579A (en) * 1932-08-19 1934-07-10 Bird Machine Co Method of and apparatus for preparing pulp stock for delivery to a paper-making machine
US2931503A (en) * 1953-04-21 1960-04-05 Clark & Vicario Corp Conditioning paper-making stock
US3271341A (en) * 1961-08-07 1966-09-06 Du Pont Aqueous colloidal dispersions of polymer
DE1561697A1 (en) * 1967-04-15 1970-10-01 Voith Gmbh J M Process for the continuous dilution and / or mixing of long, spinning-prone fibers containing suspensions and apparatus for carrying out this process
AT376251B (en) * 1980-12-19 1984-10-25 Escher Wyss Gmbh DEVICE FOR LOADING A MULTI-LAYER MATERIAL FEEDER FOR PAPER MACHINES
DE3514554C3 (en) * 1984-09-19 1998-01-08 Escher Wyss Gmbh Headbox device for a paper machine and method for its operation
DE3628699A1 (en) * 1986-08-23 1988-03-03 Voith Gmbh J M FABRIC DRAIN
DE3741603A1 (en) * 1987-12-09 1989-06-22 Voith Gmbh J M FABRIC DRAIN FOR A PAPER MACHINE OR THE LIKE.
US4954249A (en) * 1988-06-10 1990-09-04 Beloit Corporation Wave screen plate
US5196091A (en) * 1991-10-29 1993-03-23 Beloit Technologies, Inc. Headbox apparatus with stock dilution conduits for basis weight control
DE4234940C2 (en) * 1992-10-16 1994-04-07 Voith Gmbh J M Headbox with basis weight cross profile control by local concentration change
DE4316054C2 (en) * 1993-05-13 1995-11-23 Voith Gmbh J M Headbox of a paper machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639823A1 (en) * 1986-11-21 1988-06-01 Voith Gmbh J M Headbox for papermachines or the like
DE4019593A1 (en) * 1990-06-20 1992-01-09 Voith Gmbh J M FABRIC DRAIN FOR PAPER MACHINES
DE4211291A1 (en) * 1992-04-03 1993-10-07 Voith Gmbh J M Mixing device for mixing two liquids at a constant mixture volume flow to supply the headbox of a paper machine
DE9205637U1 (en) * 1992-04-25 1992-06-11 J.M. Voith Gmbh, 7920 Heidenheim Headbox for producing a paper web with variable injection

Also Published As

Publication number Publication date
FI953228A0 (en) 1995-06-29
EP0690167A2 (en) 1996-01-03
FI113554B (en) 2004-05-14
DE59510935D1 (en) 2004-09-23
FI953228A (en) 1995-12-31
CA2152830A1 (en) 1995-12-31
JPH08170291A (en) 1996-07-02
US5683551A (en) 1997-11-04
ATE274099T1 (en) 2004-09-15
DE4422907C2 (en) 1997-03-06
EP0690167B1 (en) 2004-08-18
DE4422907A1 (en) 1996-01-11

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