EP1619298A3 - Headbox of a machine for manufacturing a fibrous web, in particular a papier or board web - Google Patents

Headbox of a machine for manufacturing a fibrous web, in particular a papier or board web Download PDF

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Publication number
EP1619298A3
EP1619298A3 EP05105897A EP05105897A EP1619298A3 EP 1619298 A3 EP1619298 A3 EP 1619298A3 EP 05105897 A EP05105897 A EP 05105897A EP 05105897 A EP05105897 A EP 05105897A EP 1619298 A3 EP1619298 A3 EP 1619298A3
Authority
EP
European Patent Office
Prior art keywords
headbox
turbulence
machine
web
edge
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
EP05105897A
Other languages
German (de)
French (fr)
Other versions
EP1619298A2 (en
Inventor
Wolfgang Ruf
Hans Loser
Michael Dr. Schwarz
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 EP1619298A2 publication Critical patent/EP1619298A2/en
Publication of EP1619298A3 publication Critical patent/EP1619298A3/en
Ceased 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
    • D21F1/022—Means for injecting material into flow within the headbox
    • 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
    • D21F1/024—Details of the feed chamber
    • 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
    • D21F1/06—Regulating pulp flow

Abstract

Die Erfindung betrifft einen Stoffauflauf (1) für eine Maschine zur Herstellung einer Faserstoffbahn (2), insbesondere einer Papier- oder Kartonbahn, mit mindestens einer Verteileinrichtung (3) zum Verteilen einer hochkonsistenten Faserstoffsuspension (4, QH) über die Maschinenbreite (M), der in Maschinenlaufrichtung (L) ein eine Vielzahl von Turbulenzkanälen aufweisender Turbulenzerzeuger (5) und eine Stoffauflaufdüse (7) nachgeschaltet ist, die mit einem einen Faserstoffsuspensionsstrahl (9) liefernden Austrittsspalt (8) versehen ist.The invention relates to a headbox (1) for a machine for producing a fibrous web (2), in particular a paper or board web, with at least one distributing device (3) for distributing a highly consistent fibrous stock suspension (4, Q H ) across the machine width (M). in the machine direction (L) is a downstream of a plurality of turbulence channels turbulence generator (5) and a headbox nozzle (7), which is provided with a pulp suspension jet (9) supplying the outlet gap (8).

Der Stoffauflauf ist dadurch gekennzeichnet, dass die randseitigen Turbulenzkanäle (6.R) des Turbulenzerzeugers (5) jeweils vom restlichen Turbulenzerzeugerbereich (10) abgetrennt sind, dass die randseitigen Turbulenzkanäle (6.R) des Turbulenzerzeugers (5) einzelseitig mit jeweils mindestens einer Zuführleitung (13) für einen Randstrom (14) verbunden sind, die an die Verteileinrichtung (3) endseitig oder anfangs- und endseitig angeschlossen sind, und dass zur Beeinflussung des sich quer zur Maschinenlaufrichtung (L) ergebenden Faserorientierungsprofils die Volumenströme zumindest in den seitlichen Zuführleitungen (13) für die Randströme (14) jeweils über wenigstens ein Stellglied (15) entsprechend variabel einstellbar sind.

Figure imgaf001
The headbox is characterized in that the edge-side turbulence channels (6.R) of the turbulence generator (5) are each separated from the remaining turbulence generator region (10), that the peripheral turbulence channels (6.R) of the turbulence generator (5) on each side with at least one supply line (13) are connected to an edge stream (14), which are connected to the distributor (3) end or beginning and end, and that for influencing the transverse to the machine direction (L) resulting fiber orientation profile, the volume flows at least in the lateral supply lines ( 13) for the edge streams (14) in each case via at least one actuator (15) are variably adjustable accordingly.
Figure imgaf001
EP05105897A 2004-07-21 2005-06-30 Headbox of a machine for manufacturing a fibrous web, in particular a papier or board web Ceased EP1619298A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410035303 DE102004035303A1 (en) 2004-07-21 2004-07-21 Headbox for a machine for producing a fibrous web, in particular a paper or board web

Publications (2)

Publication Number Publication Date
EP1619298A2 EP1619298A2 (en) 2006-01-25
EP1619298A3 true EP1619298A3 (en) 2006-02-01

Family

ID=35262216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05105897A Ceased EP1619298A3 (en) 2004-07-21 2005-06-30 Headbox of a machine for manufacturing a fibrous web, in particular a papier or board web

Country Status (2)

Country Link
EP (1) EP1619298A3 (en)
DE (1) DE102004035303A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007034766A1 (en) * 2007-07-25 2009-01-29 Voith Patent Gmbh Apparatus and method for on-line control of the fiber orientation cross-profile
AT505931B8 (en) 2007-11-19 2009-06-15 Andritz Ag Maschf SHEETING METHOD AND WET PARTY FOR PRODUCING A FIBROUS WEB
DE102008001836A1 (en) 2008-05-16 2009-11-19 Voith Patent Gmbh Device for the online control and / or regulation of a fiber orientation transverse profile
CN101392470B (en) * 2008-10-23 2011-04-27 华南理工大学 Separation control device of head box combined balance chamber
DE102008054894A1 (en) * 2008-12-18 2010-07-01 Voith Patent Gmbh Headbox for a machine for producing a fibrous web
DE102010001613A1 (en) * 2010-02-05 2011-08-11 Voith Patent GmbH, 89522 Headbox and sheet forming unit with a headbox
DE202010016443U1 (en) 2010-12-10 2011-02-17 Voith Patent Gmbh Headbox for a machine for producing a fibrous web

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239845A1 (en) * 1992-11-05 1993-05-19 Voith Gmbh J M Paper-making inlet correction - uses correlated measurements from start and end of water extraction stage to calculate the settings
EP0595325A1 (en) * 1992-10-29 1994-05-04 Mitsubishi Jukogyo Kabushiki Kaisha End portion flow rate regulating apparatus for a paper machine headbox
DE3538466C2 (en) * 1984-10-31 1998-05-28 Valmet Paper Machinery Inc Method for controlling the flow of a headbox and device for applying substance to a forming screen of a paper machine
US5938896A (en) * 1997-09-30 1999-08-17 Voith Sulzer Paper Technology North America, Inc. Hydraulic increaser for a wet end of a paper-making machine
DE10230301A1 (en) * 2002-07-05 2003-04-03 Voith Paper Patent Gmbh Paper-making fibre dispensing jets, have vortex generators causing pressure drop

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538466C2 (en) * 1984-10-31 1998-05-28 Valmet Paper Machinery Inc Method for controlling the flow of a headbox and device for applying substance to a forming screen of a paper machine
EP0595325A1 (en) * 1992-10-29 1994-05-04 Mitsubishi Jukogyo Kabushiki Kaisha End portion flow rate regulating apparatus for a paper machine headbox
DE4239845A1 (en) * 1992-11-05 1993-05-19 Voith Gmbh J M Paper-making inlet correction - uses correlated measurements from start and end of water extraction stage to calculate the settings
US5938896A (en) * 1997-09-30 1999-08-17 Voith Sulzer Paper Technology North America, Inc. Hydraulic increaser for a wet end of a paper-making machine
DE10230301A1 (en) * 2002-07-05 2003-04-03 Voith Paper Patent Gmbh Paper-making fibre dispensing jets, have vortex generators causing pressure drop

Also Published As

Publication number Publication date
EP1619298A2 (en) 2006-01-25
DE102004035303A1 (en) 2006-02-16

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