WO2010069652A1 - Caisson de tête pour machine de fabrication d'une bande de matière fibreuse - Google Patents

Caisson de tête pour machine de fabrication d'une bande de matière fibreuse Download PDF

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Publication number
WO2010069652A1
WO2010069652A1 PCT/EP2009/063844 EP2009063844W WO2010069652A1 WO 2010069652 A1 WO2010069652 A1 WO 2010069652A1 EP 2009063844 W EP2009063844 W EP 2009063844W WO 2010069652 A1 WO2010069652 A1 WO 2010069652A1
Authority
WO
WIPO (PCT)
Prior art keywords
headbox
intermediate channel
lateral
channels
fibrous web
Prior art date
Application number
PCT/EP2009/063844
Other languages
German (de)
English (en)
Inventor
Wolfgang Ruf
Konstantin Fenkl
Markus Häußler
Original Assignee
Voith 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 Patent Gmbh filed Critical Voith Patent Gmbh
Publication of WO2010069652A1 publication Critical patent/WO2010069652A1/fr

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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
    • 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

Definitions

  • Headbox for a machine for producing a fibrous web
  • the invention relates to a headbox for a machine for producing a fibrous web, in particular paper or board web, from at least one pulp suspension, comprising a feeding device feeding the at least one pulp suspension, having a downstream and a plurality of channels arranged in rows and in columns A distribution well plate having a downstream thereto, over the width of the headbox extending intermediate channel with a plurality of spaced in the width direction of the headbox means for preferably controllable / metered addition of a fluid in fluid streams in the at least one pulp suspension, wherein the single means each have a plurality comprising each Zudosierkanalö believing having, emanating at different heights and connected to a common supply channel Zudosierkanäle, with a turbulence product downstream arranged with a plurality of arranged in rows and in columns flow channels, and with the turbulence generating means immediately adjoining and having a nozzle gap headbox.
  • Such a headbox is known, for example, from German Offenlegungs DE 44 16 898 A1, DE 44 16 899 A1 and DE 44 16 909 A1.
  • German patent application DE 44 16 898 A1 shows a headbox for a paper machine with a feed device for the pulp suspension, with a plurality of channels having guide means, a lying upstream of a guide means mixing chamber with a plurality Distributed across the headbox feeding devices for a differing in its properties of the stock suspension zuzumischen- and having a guide device adjoining, an outlet gap for the stock suspension forming nozzle chamber.
  • the feed devices for the fluid to be admixed extend substantially perpendicularly in the mixing chamber and have a plurality of admixing openings located one above the other.
  • German patent application DE 44 16 899 A1 shows a headbox for a paper machine with a feed device for the pulp suspension, a first having a plurality of channels guide means, a second plurality of channels having guide means, an intermediate mixing chamber, a subsequent, a Exit slit for the pulp forming nozzle chamber and a plurality of distributed over the headbox feed lines for the admixed fluid, wherein the majority of the channels of the guide means are positioned and dimensioned so that the outlet opening from the upstream guide means is not aligned with an opening in the downstream guide means ,
  • the supply lines for the admixing fluid have admixing openings, which for the most part are each aligned with an opening in the downstream guide device.
  • German published patent application DE 44 16 909 A1 shows a headbox for a paper machine with a supply device for the Stoffsus- pension, a downstream adjoining provided with a plurality of channels guide means, a downstream thereto, extending over the width of the headbox mixing chamber with a plurality of distributed across the headbox, extending substantially in the flow direction partitions and distributed across the headbox Zudiesseinrich- tions for a zuzumischendes fluid with Zumischö réelleen, downstream of another, a plurality of channels having guide means and a subsequent this, an outlet gap for the stock suspension forming nozzle chamber.
  • the feed means for the admixing fluid extend into the mixing chamber and the sectional area formed by the partitions in the mixing chamber begins in the region of the admixing openings, from where it extends substantially in the flow direction as far as the second guide means.
  • the fiber orientation profile in the fibrous web to be produced is influenced by an adjustment of a diaphragm provided in the region of the outlet slit of the headbox, by a modification of the turbulence insert of the headbox and by an influence on the flow rate in the edge zones of the headbox.
  • the hitherto customary influencing of the throughput in the edge zones of the headbox has, among other things, the disadvantages that no addition of a fluid is possible in these edge zones and that problems with a possible lamellar connection to the turbulence insert can result.
  • the implementation with additional externally mounted facilities is usually very expensive and therefore expensive.
  • the headbox should be kept as simple as possible in construction and it should also be given a technically simple and reliable Zudosiersystem, which is also still inexpensive and technically easy to perform.
  • the intermediate channel has two lateral edge chambers on the outside of its central intermediate channel region, which are separated from the middle chamber of the middle intermediate channel region of the intermediate channel by a respective fixed partition and extending over the length of the intermediate channel are, and that to influence the fiber orientation cross-profile in the fibrous web to be produced at least one of the respective lateral and separated edge chambers of the intermediate channel volume flows, in particular the flow of the medium from the means for preferably regulated / controllable metering emerging from the fluid partial flows, by means of at least one actuator according to variably adjustable, in particular Is controllable or controllable.
  • the inventive design of the headbox of the type mentioned provides a most extensive, preferably complete avoidance of the disadvantages of the prior art and a much improved fulfillment of particular technological requirements.
  • the headbox according to the invention has a technically simple and reliable Zudosiersystem, which is also still inexpensive and technically easy to perform.
  • the volume flows in the two edge regions of the turbulence generating means by the actuators sufficiently adjustable, in particular controllable or regulated. This applies in particular when the pressure level in the two lateral and separated edge chambers of the intermediate channel is lower than the pressure level in the middle chamber of the middle intermediate channel region of the intermediate channel. By this proportion, the pressure applied to the corresponding actuator differential pressure is higher and higher flow rates are possible.
  • the total pressure loss of the system comprising the head box according to the invention should be ⁇ 2 bar, preferably ⁇ 1, 5 bar, in particular ⁇ 1, 0 bar.
  • At least one, well-known to those skilled separator, in particular a blade be arranged. If a plurality of separating elements, in particular lamellae, are arranged in the headbox of the headbox according to the invention, they can have different lengths and possibly also different properties, such as surface contours and the like.
  • the volume flow of at least one fibrous suspension fed to at least one fibrous suspension by means of at least one actuator can also be variably adjusted, in particular controlled or regulated, by means of at least one actuator.
  • the channels mounted in the distribution well plate can be adjustable or even controllable or controllable by means of a device, in particular an actuator.
  • the lateral and separated edge chamber of the intermediate channel can be arranged downstream of at least one column, preferably in several columns, in particular in two columns, arranged flow channels of the turbulence generating means.
  • the flow channels of the turbulence generating means arranged downstream of the lateral and separate edge chamber of the intermediate channel preferably have a larger flow cross section than the flow channels of the turbulence generating means arranged downstream of the middle chamber of the intermediate channel region of the intermediate channel.
  • the lateral and separated edge chamber of the intermediate channel are preferably arranged upstream of at least one column, preferably in several columns, in particular in two columns, channels of the distribution well plate. In this way, a sufficient supply of pulp suspension can be ensured in the lateral and separated edge chamber of the intermediate channel, even at lower flow velocities.
  • the channels of the distribution tube plate upstream of the lateral and severed marginal chamber of the intermediate channel may have a smaller flow cross-section than the channels of the distribution tube plate upstream of the central intermediate channel region of the intermediate channel.
  • a central pressure loss distribution of the turbulence generating medium distribution well plate system in favor of the turbulence generating means in the center chamber of the middle intermediate channel region of the intermediate turbulence generating means.
  • Channels in a ratio of 5: 1 to 1: 1 provided.
  • the lateral pressure loss distribution of the turbulence generating means distribution well plate in favor of the distribution well plate in the lateral and separated peripheral chamber of the intermediate channel is preferably provided in a ratio of 10: 1 to 1: 1.
  • the pulp suspension fed to at least one of the feed devices can also be fed exclusively to the downstream channels of the distribution tube plate.
  • a headbox without a recirculation of the pulp suspension can be realized and the amount of pulp suspension at the edge varies to a significant extent less.
  • regulation or determination of the volume flows and / or regulation of the fiber orientation transverse profile of the fibrous web can be achieved by means of a differential pressure measurement of the pressures in the center chamber the middle intermediate channel region of the intermediate channel and in the two lateral and separated edge chambers of the intermediate channel.
  • the actuator comprises in a preferred embodiment, an adjustable, in particular a controllable / controllable throttle.
  • a throttle has in a known manner a mature technology and thus a good and safe operating behavior.
  • the respective means for preferably controllable metered addition of the fluid in partial fluid streams into the at least one pulp suspension preferably comprises a metering blade, as described in the German patent application (Applicant's file number: HPA14265 DE and Applicant's working title: "MJ M-DoS").
  • TE geometrical The same disclosure as that of the present patent application is described and shown, the content of which is hereby incorporated by reference.
  • the fluid preferably consists of water, in particular clear water, or of a pulp suspension, in particular white water, the concentration of which differs from the average concentration of the at least one pulp suspension in the headbox.
  • the headbox according to the invention is outstandingly suitable for use in a machine for producing a fibrous web, in particular paper or board web.
  • a fiber orientation control system can be provided, which comprises a device provided at the machine end for measuring the fiber orientation cross profile of the fibrous web, a processing unit further processing the arithmetic unit received signals and the actuators of the headbox.
  • the fibrous web produced in the machine with at least one headbox according to the invention has consistently excellent properties, since, among other things, the control of both its fiber orientation transverse profile and its basis weight cross-section is possible.
  • Figure 1 is a vertical and schematic longitudinal sectional view of a headbox for a machine for producing a fibrous web from at least one pulp suspension according to the prior art
  • Figure 2 is a horizontal, partial and schematic longitudinal sectional view of an embodiment of a head box according to the invention for a machine for producing a fibrous web from at least one pulp suspension
  • FIG. 3 shows a schematic detail of a further embodiment of the head box according to the invention shown in FIG. 2 for a machine for producing a fibrous web from at least one fibrous stock suspension
  • FIG. 4 shows a simplified schematic illustration of a machine provided with an inventive headbox for the production of a fibrous web, in which the headbox according to the invention is integrated into a fiber orientation control system.
  • FIG. 1 shows a vertical and schematic longitudinal sectional view of an exemplary embodiment of a known from the prior art headbox 1 for a machine for producing a fibrous web 3 from a pulp suspension 2 (arrow).
  • the illustrated headbox 1 can of course also be designed as a multilayer headbox, which uses at least two different pulp suspensions for producing the fibrous web 3.
  • the fibrous web 3 may in particular be a paper, board or tissue web.
  • the headbox 1 has a feeding device 4 which feeds a pulp suspension 2 (arrow), for example in the embodiment of a illustrated transverse distributor pipe 5 or a rotary distributor (not illustrated) with a multiplicity of hoses.
  • a pulp suspension 2 for example in the embodiment of a illustrated transverse distributor pipe 5 or a rotary distributor (not illustrated) with a multiplicity of hoses.
  • the feeder 4 is followed downstream by a Verteilrohrlochplatte 6, which has a plurality of arranged in rows Z and in columns S channels 7. Again downstream of the distribution well plate 6 is followed by an across the width B (arrow) of the headbox 1 extending intermediate channel 8, with a plurality of spaced in the width direction of the headbox 1 means 9 for preferably adjustable / controllable metering of a fluid 10 (arrow) in Partial streams 10.T (arrows) in the pulp suspension 2 (arrow) is provided.
  • the individual means 9 for preferably controllable metered addition in each case comprises a plurality of metering channels 11 having a respective metering channel opening and opening at different heights and connected to a common supply channel 12.
  • a turbulence generating means 13 Downstream of the intermediate channel 8 is a turbulence generating means 13 having a plurality of flow channels 14 arranged in rows Z and in columns S.
  • the pulp suspension 2 (arrow) in the turbulence generating means 13 is divided into pulp feed partial streams and after discharge from the turbulence generating means in a machine-width chamber 15 in an embodiment of a nozzle gap 17 having headbox nozzle 16 merged again to allow the formation of a machine-wide fibrous web 3.
  • the flow channels 14 are preferably formed in a known manner as thin-walled turbulence tubes and / or turbulence tube inserts with at least partially constant, at least partially diverging, at least partially converging and / or discontinuous cross-sectional areas.
  • separating elements in particular a lamella be arranged. If a plurality of separating elements, in particular lamellae, are arranged in the headbox nozzle 16, they can have different lengths and possibly also different properties, such as surface contours and the like.
  • the headbox 16 may be provided on the outlet side at least one side with a dashed line indicated aperture 18.
  • 2 shows a horizontal, partial and schematic longitudinal section of an embodiment of a headbox 1 according to the invention for a machine for producing a fibrous web 3 from at least one fibrous stock suspension 2.
  • the basic structure of this headbox 1 substantially corresponds to the basic structure of the one shown schematically in FIG Headbox 1, so that reference is also made to this description of figures.
  • the headbox 1 generally has a mirror-symmetrical design to the longitudinal center line LML (double arrow).
  • the intermediate channel 8 of the head box 1 has, on the outside of its middle intermediate channel region 8 .M, two lateral edge chambers 8 .RK which are arranged in a stationary manner from the middle chamber 8 .MK of the middle intermediate channel region 8 .M of the intermediate channel 8 and extend over the length 8. L of the intermediate channel 8 extending partition 19 are separated.
  • a means 9 for preferably metered / controllable metered addition of the fluid 10 is arranged in the respective marginal chamber 8.RK.
  • a plurality of means 9 for preferably controllable metered addition of the fluid 10 may be arranged in the respective marginal chamber 8.RK.
  • the respective volume flow 10.V respectively supplied to the lateral and separated marginal chambers 8.RK of the intermediate channel 8, in particular the volumetric flow of the fluid 9 emerging from the means 9 for preferably controllable metered addition of the fluid 10
  • Fluid partial flows 10.T by means of at least one only indicated actuator 20 according to variably adjustable, in particular controlled or regulated (see Figure 1).
  • the merely indicated actuator 20 preferably comprises an adjustable, in particular a controllable / controllable throttle known type and known operation.
  • the respective volume flow 2.V of the fibrous suspension 2 fed to the lateral and separated marginal chambers 8.RK of the intermediate channel 8 via the channel 7 of the distribution well plate 6 is at least one actuator 21 correspondingly variably adjustable, in particular controllable or adjustable.
  • the merely indicated actuator 21 preferably comprises an adjustable, in particular a controllable / controllable throttle known type and known operation.
  • the respective lateral and separated edge chamber 8.RK of the intermediate channel 8 are disposed downstream of flow channels 14 of the turbulence generating means 13 arranged in two columns S1, S2.
  • the respective lateral and separate edge chamber 8.RK of the intermediate channel 8 may also be arranged downstream of only one column or in more than two columns flow channels 14 of the turbulence generating means 13.
  • the flow channels 14 of the turbulence generation means 13 arranged downstream of the respective lateral and separated edge chamber 8 .RK of the intermediate channel 8 have a larger flow cross section 14 .RQ than the center chamber 8 .MK of the middle intermediate channel region 8 .M of the intermediate channel 8 downstream flow channels 14 of the turbulence generation means 13 on.
  • the flow cross section of the flow channels 14, which are arranged downstream of the middle chamber 8 .MK of the middle intermediate channel region 8 .M of the intermediate channel 8, is provided with the reference symbol 14.
  • the respective lateral and separated edge chamber 8.RK of the intermediate channel 8 are arranged at least in one column, preferably in several columns, in particular in two columns, arranged channels 7 of the distribution well plate 6.
  • the channels 7 of the Verteilrohrplatte 6 are arranged only in a column S3.
  • the respective lateral and separated edge chamber 8.RK of the intermediate channel 8 upstream channels 7 of the Verteilrohrlochplatte 6 a smaller flow area 7.RQ than the middle chamber 8.MK of the middle intermediate channel 8.M of the intermediate channel 8 upstream channels 7 of the distribution well plate 6 on.
  • the flow cross-section of the flow channels 7, which are arranged upstream of the middle chamber 8 .MK of the middle intermediate channel region 8 .M of the intermediate channel 8, is provided by the reference numeral 7.
  • the total pressure loss of the inventive headbox 1 comprehensive system is ⁇ 2 bar, preferably ⁇ 1, 5 bar, in particular ⁇ 1, 0 bar.
  • the respective Zudosierkanalö Stamm 11.1 is centrally or approximately centrally disposed between two adjacent columns S to channels 14 of the turbulence generating means 13 so that the emerging from the respective means 9 for preferably regulated / controllable metering fluid partial flows 10.T (arrow) also centrally or approximately centrally between two adjacent columns S on channels 14 of the turbulence generating means 13 to the turbulence generating means 13 impinge.
  • the metering channels 11 of the means 9 for preferably controllable metering, which discharge at different heights, are arranged at equal intervals and the metering channel 11 of the means 9 for preferably controllable metering connected to the common supply channel 12 has a circular cross-sectional area 11.Q with a diameter 11.D from 2 to 10 mm, preferably from 4 to 6 mm.
  • the common supply channel 12 of the means 9 for preferably controllable metered addition has a circular cross-sectional area 12.Q with a diameter 12.D of 6 to 20 mm, preferably from 10 to 15 mm (see detail X).
  • the means 9, preferably designed as a metering blade 9.1, for preferably controllable metering has a length 9.L in the range of 60 to 350 mm, preferably 100 to 250 mm, and a height 9 depending on the height of the intermediate chamber of the headbox 1. H (see also Figure 1) in the range of 50 to 300 mm, preferably from 75 to 250 mm.
  • the means 9 for preferably controllable metered addition have a preferably equal pitch T in the width direction of the headbox 1 in the range of 10 to 100 mm, preferably 25, 33, 50 or 66 mm.
  • the metering blade 9.1 is described and shown in the German patent application (applicant file number: HPA14265 DE and applicant working title: "MJ M-DoS-TE geometry”) with the same filing date as the present patent application made this description.
  • FIG. 3 shows a schematic detail of a further embodiment of the head box 1 according to the invention, shown in FIG. 2, for a machine for producing a fibrous web from at least one fibrous stock suspension.
  • FIG. 4 shows in a simplified schematic representation a machine provided with a headbox 1 according to FIG. 2 for producing a fibrous web 3, in particular a paper or board web, in which the headbox 1 is integrated into a fiber orientation control system 22.
  • the fiber orientation control system 22 comprises a device 23 provided at the machine end for measuring the fiber orientation transverse profile of the fibrous web 3, a processing unit 24 further processing the measurement signals obtained, and the merely indicated actuators 20, 21 of the headbox 1.
  • the features of the embodiments of the respective headbox 1 described in FIGS. 1 to 4 can also be combined at least partially with one another for the person skilled in the art in a manner which is obvious.
  • the fluid 10 flowing through the respective headbox 1 of FIGS. 1 to 4 consists at least of water, in particular white water or clear water, or of at least one fibrous suspension whose concentration differs from the average concentration of the at least one fibrous suspension 2 flowing in the headbox 1.
  • the particular headbox 1 of Figures 1 to 4 is particularly suitable for use in a machine for producing a fibrous web 3, in particular paper or board web, from at least one pulp suspension second
  • a headbox of the type mentioned above is improved by the invention so that the aforementioned disadvantages of the prior art as far as possible, preferably completely eliminated.
  • the headbox is kept as simple as possible in the structure and it is also a technically simple and reliable Zudosiersystem specified which is also still inexpensive and technically easy to carry out.

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Abstract

L'invention concerne un caisson de tête (1) pour une machine de fabrication d'une bande (3) de matière fibreuse, en particulier d'une bande de papier ou de carton, à partir d'au moins une suspension (2) de matière fibreuse, qui présente un dispositif d'amenée (4, 5) qui amène la ou les suspensions (2) de matière fibreuse, une plaque perforée (6) de tube de répartition qui est raccordée en aval et qui présente plusieurs canaux (7) disposés en lignes (Z) et en colonnes (S), un canal intermédiaire (8), qui est situé en aval de cette plaque perforée, doté de plusieurs moyens (9, 9.1) situés à distance les uns des autres dans le sens de la largeur du caisson de tête (1) d'addition de préférence régulée et/ou asservie d'un fluide (10) en écoulements partiels (10. T) de fluide dans la ou les suspensions (2) de matière fibreuse. Le caisson de tête (1) selon l'invention est caractérisé en ce que le canal intermédiaire (8) présente sur le côté extérieur de sa partie centrale (8.M) de canal intermédiaire deux chambres latérales de bordure (8.R) qui sont séparées de la chambre centrale (8.MK) de la partie centrale (8.M) du canal intermédiaire (8) chaque fois par une paroi de séparation (19) disposée fixement et s'étendant sur la longueur (8.L) du canal intermédiaire (8) et en ce que pour agir sur le profil transversal d'orientation des fibres de la bande (3) de matière fibreuse à fabriquer, au moins un des écoulements volumiques (10V) apportés dans les chambres de bordure (8.R) latérales et séparées du canal intermédiaire (8) peut être ajusté ou régulé de manière appropriée au moyen d'au moins un organe de réglage (20).
PCT/EP2009/063844 2008-12-18 2009-10-22 Caisson de tête pour machine de fabrication d'une bande de matière fibreuse WO2010069652A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008054894.4 2008-12-18
DE200810054894 DE102008054894A1 (de) 2008-12-18 2008-12-18 Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn

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WO2010069652A1 true WO2010069652A1 (fr) 2010-06-24

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102010038891A1 (de) 2010-08-04 2012-02-09 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
DE102010001555A1 (de) 2010-02-03 2011-08-04 Voith Patent GmbH, 89522 Ventil zum Regulieren eines Fluidstroms
DE102010001557A1 (de) 2010-02-03 2011-08-04 Voith Patent GmbH, 89522 Ventil zum Regulieren eines Fluidstroms
DE102010028403A1 (de) 2010-04-30 2011-11-03 Voith Patent Gmbh Ventil zum Regulieren eines Fluidstroms
DE102010028404A1 (de) 2010-04-30 2011-11-03 Voith Patent Gmbh Ventil zum Regulieren eines Fluidstroms
DE102010028408A1 (de) 2010-04-30 2011-11-03 Voith Patent Gmbh Ventil zum Regulieren eines Fluidstroms
DE102010030352A1 (de) 2010-06-22 2011-12-22 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn
DE102011079715A1 (de) 2011-07-25 2013-01-31 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn
DE102011083085A1 (de) 2011-09-21 2013-03-21 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn

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WO1993022495A1 (fr) * 1992-04-25 1993-11-11 Sulzer-Escher Wyss Gmbh Agencement de caisse de tete pour machines a papier
DE4416898A1 (de) * 1994-05-13 1995-11-30 Voith Sulzer Papiermasch Gmbh Stoffauflauf für eine Papiermaschine mit lokaler Zumischung von Fluid
DE19705590A1 (de) * 1997-02-14 1998-08-20 Voith Sulzer Papiermasch Gmbh Stoffauflauf einer Papiermaschine
EP1496150A1 (fr) * 2003-07-09 2005-01-12 Voith Paper Patent GmbH Caisse de tête
EP1619298A2 (fr) * 2004-07-21 2006-01-25 Voith Paper Patent GmbH Caisse de tête d'une machine pour fabriquer une bande fibreuse, en particulier une bande de papier ou de carton

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DE4416909C2 (de) 1994-05-13 1997-12-11 Voith Sulzer Papiermasch Gmbh Stoffauflauf für eine Papiermaschine
DE4416899C2 (de) 1994-05-13 1997-12-18 Voith Sulzer Papiermasch Gmbh Verfahren zur lokalen Zumischung von Fluid in einen Stoffauflauf sowie Vorrichtung zu seiner Ausführung

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Publication number Priority date Publication date Assignee Title
WO1993022495A1 (fr) * 1992-04-25 1993-11-11 Sulzer-Escher Wyss Gmbh Agencement de caisse de tete pour machines a papier
DE4416898A1 (de) * 1994-05-13 1995-11-30 Voith Sulzer Papiermasch Gmbh Stoffauflauf für eine Papiermaschine mit lokaler Zumischung von Fluid
DE19705590A1 (de) * 1997-02-14 1998-08-20 Voith Sulzer Papiermasch Gmbh Stoffauflauf einer Papiermaschine
EP1496150A1 (fr) * 2003-07-09 2005-01-12 Voith Paper Patent GmbH Caisse de tête
EP1619298A2 (fr) * 2004-07-21 2006-01-25 Voith Paper Patent GmbH Caisse de tête d'une machine pour fabriquer une bande fibreuse, en particulier une bande de papier ou de carton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038891A1 (de) 2010-08-04 2012-02-09 Voith Patent Gmbh Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn

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