EP1422337A1 - Caisse de tête avec dispositif de dosage - Google Patents

Caisse de tête avec dispositif de dosage Download PDF

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Publication number
EP1422337A1
EP1422337A1 EP03102715A EP03102715A EP1422337A1 EP 1422337 A1 EP1422337 A1 EP 1422337A1 EP 03102715 A EP03102715 A EP 03102715A EP 03102715 A EP03102715 A EP 03102715A EP 1422337 A1 EP1422337 A1 EP 1422337A1
Authority
EP
European Patent Office
Prior art keywords
metering
sword
headbox according
main flow
flow direction
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
EP03102715A
Other languages
German (de)
English (en)
Other versions
EP1422337B1 (fr
Inventor
Klaus Lehleiter
Konstanttin Fenkl
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 EP1422337A1 publication Critical patent/EP1422337A1/fr
Application granted granted Critical
Publication of EP1422337B1 publication Critical patent/EP1422337B1/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
    • 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

Definitions

  • Headbox is the surface of the dosing blade and / or the inner boundary surface of the mixing chamber viewed in the flow direction each structured differently in sections. It can it may be particularly advantageous if the surface of the dosing sword or the inner boundary surface of the mixing chamber in Main flow direction considered before the addition of the second Fluid is structured differently than after the addition of the second fluid.
  • Headbox are at least two next to each other in the transverse direction lying rows of one behind the other in the main flow direction Dosing swords provided.
  • Headbox starts the generally rising upper edge of the dosing sword at the top of one viewed in the main flow direction front edge section generally perpendicular to the main flow direction of the dosing sword.
  • this is also the case Execution conceivable in which the generally rising upper edge of the Dosing swords on the front in the main flow direction End of the lower edge of the dosing sword begins.
  • At least one Dosing sword provided that the top view one or more times chamfered profile.
  • at least one preferably opens Dosing channel in the area of the chamfer in the mixing chamber.
  • the or the respective metering channels can in particular be in a respective one again Horizontal plane or in different horizontal planes extend.
  • the second fluid Q L is fed to the metering channels 14 via a line 24, in which at least one valve 26 can be provided.
  • FIG. 4 shows a sectional front view of the metering bar 12 according to FIGS. 1 and 2.
  • this metering bar 12 may be at a distance a from the lower boundary wall 30 of the mixing chamber 10 or, as shown by broken lines, up to this lower boundary wall 30 are enough. 4 one of the metering channels 14 for the second fluid Q L can be seen.
  • FIG. 9 shows a schematic top view of a metering sword 12 with an in Top view of simple straight profile.
  • FIG. 11 there is basically also a multiple stepped profile of the metering sword 12 conceivable, in the present case For example, a two-tier profile is shown.
  • Figures 17a, b is a schematic plan view, respectively sectioned front view a metering sword 12 shown, the one two-dimensional airfoil profile in the main flow direction HS (vg. 17 a) and height direction z (cf. FIG. 17 b).
  • FIG. 27 shows a schematic side view of an embodiment with at least one pair of each other in a mixing chamber 10 lying or superimposed dosing swords 12.

Landscapes

  • Accessories For Mixers (AREA)
  • Paper (AREA)
  • Adornments (AREA)
  • Knitting Machines (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
EP03102715A 2002-09-27 2003-09-05 Caisse de tête avec dispositif de dosage Expired - Lifetime EP1422337B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10245154A DE10245154A1 (de) 2002-09-27 2002-09-27 Stoffauflauf
DE10245154 2002-09-27

Publications (2)

Publication Number Publication Date
EP1422337A1 true EP1422337A1 (fr) 2004-05-26
EP1422337B1 EP1422337B1 (fr) 2008-01-16

Family

ID=32009940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03102715A Expired - Lifetime EP1422337B1 (fr) 2002-09-27 2003-09-05 Caisse de tête avec dispositif de dosage

Country Status (3)

Country Link
EP (1) EP1422337B1 (fr)
AT (1) ATE384164T1 (fr)
DE (2) DE10245154A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004055919A1 (de) * 2004-11-19 2006-05-24 Voith Paper Patent Gmbh Stoffauflauf
DE102004000069A1 (de) * 2004-12-30 2006-07-13 Voith Paper Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn, insbesondere einer Papier- oder Kartonbahn
DE102008054897A1 (de) 2008-12-18 2010-07-01 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn
DE102008054896A1 (de) 2008-12-18 2010-07-01 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn
DE102008054898A1 (de) * 2008-12-18 2010-06-24 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn
DE102008054893A1 (de) * 2008-12-18 2010-07-01 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn
DE102009027013A1 (de) * 2009-06-18 2010-12-23 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565923A1 (fr) * 1992-04-03 1993-10-20 Voith Sulzer Papiermaschinen GmbH Mélangeur pour le mélange de deux fluides, produisant un courrant de volume constant, pour l'alimentation de la caisse de tête d'une machine à papier
DE4416909A1 (de) * 1994-05-13 1995-11-16 Voith Sulzer Papiermasch Gmbh Verfahren zur lokalen Zumischung von Fluid in einen Stoffauflauf für eine Papiermaschine sowie Stoffauflauf zu seiner Durchführung
DE4416898A1 (de) * 1994-05-13 1995-11-30 Voith Sulzer Papiermasch Gmbh Stoffauflauf für eine Papiermaschine mit lokaler Zumischung von Fluid
EP0824157A2 (fr) * 1996-08-14 1998-02-18 Voith Sulzer Papiermaschinen GmbH Caisse de tête et procédé pour la répartition d'une suspension fibreuse dans la caisse de tête d'une machine à papier
WO2002072250A1 (fr) * 2001-02-21 2002-09-19 Metso Paper Inc Ensemble pour melanger des courants dans un processus de fabrication du papier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565923A1 (fr) * 1992-04-03 1993-10-20 Voith Sulzer Papiermaschinen GmbH Mélangeur pour le mélange de deux fluides, produisant un courrant de volume constant, pour l'alimentation de la caisse de tête d'une machine à papier
DE4416909A1 (de) * 1994-05-13 1995-11-16 Voith Sulzer Papiermasch Gmbh Verfahren zur lokalen Zumischung von Fluid in einen Stoffauflauf für eine Papiermaschine sowie Stoffauflauf zu seiner Durchführung
DE4416898A1 (de) * 1994-05-13 1995-11-30 Voith Sulzer Papiermasch Gmbh Stoffauflauf für eine Papiermaschine mit lokaler Zumischung von Fluid
EP0824157A2 (fr) * 1996-08-14 1998-02-18 Voith Sulzer Papiermaschinen GmbH Caisse de tête et procédé pour la répartition d'une suspension fibreuse dans la caisse de tête d'une machine à papier
WO2002072250A1 (fr) * 2001-02-21 2002-09-19 Metso Paper Inc Ensemble pour melanger des courants dans un processus de fabrication du papier

Also Published As

Publication number Publication date
DE10245154A1 (de) 2004-04-15
DE50309013D1 (de) 2008-03-06
ATE384164T1 (de) 2008-02-15
EP1422337B1 (fr) 2008-01-16

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