EP1496155B1 - Dispositif pour appliquer directement ou indirectement une suspension liquide ou pateuse sur une bande de papier ou carton - Google Patents

Dispositif pour appliquer directement ou indirectement une suspension liquide ou pateuse sur une bande de papier ou carton Download PDF

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Publication number
EP1496155B1
EP1496155B1 EP04013297A EP04013297A EP1496155B1 EP 1496155 B1 EP1496155 B1 EP 1496155B1 EP 04013297 A EP04013297 A EP 04013297A EP 04013297 A EP04013297 A EP 04013297A EP 1496155 B1 EP1496155 B1 EP 1496155B1
Authority
EP
European Patent Office
Prior art keywords
web
diffuser
paper
roll
scraper
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.)
Expired - Lifetime
Application number
EP04013297A
Other languages
German (de)
English (en)
Other versions
EP1496155A2 (fr
EP1496155A3 (fr
Inventor
Uwe Sachse
Reinhard Knop
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.)
PAMA Papiermaschinen GmbH
Original Assignee
PAMA 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 PAMA Papiermaschinen GmbH filed Critical PAMA Papiermaschinen GmbH
Publication of EP1496155A2 publication Critical patent/EP1496155A2/fr
Publication of EP1496155A3 publication Critical patent/EP1496155A3/fr
Application granted granted Critical
Publication of EP1496155B1 publication Critical patent/EP1496155B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/18—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material only one side of the work coming into contact with the liquid or other fluent material
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/34—Knife or blade type coaters
    • D21H23/36—Knife or blade forming part of the fluid reservoir, e.g. puddle-type trailing blade or short-dwell coaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
    • B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod

Definitions

  • the invention relates to a device for the direct or indirect application of liquid to pasty suspensions, in particular for color pigments or starches containing suspensions on paper or board webs.
  • the applied to a paper or board web suspension which may be a glue or color suspension, but also a pasty coating composition, applied from an application chamber either directly or indirectly via a mostly rubberized applicator roll on the web to be coated and subsequently by a roller blade or a doctor blade metered and fed to a press nip.
  • a size press for direct coating of the paper web is described, in which the glue suspension from an open application chamber is applied to the paper web and subsequently metered by means of a corrugated roller doctor blade.
  • This device is an open system, especially when suspensions of high viscosity are to be processed, at the high today usual working speeds of over 800 m / min not suitable for coating, since then no uniform film can be produced on the paper web.
  • a device for the indirect application of a liquid suspension in which the liquid suspension by means of one across the entire width the web-reaching nozzle applicator applied to an applicator roll and finely dosed by means of a doctor bed. In a press nip formed between the applicator roll and a press roll, the coating of the paper web takes place. Also in this commissioned work that occur in the device after DE 34 17 487 A1 mentioned disadvantages. Furthermore, in the DE 44 32 177 A1 a device for direct or indirect application of a liquid to pasty suspension described on a moving web. This device has a metering gap designed as a free-jet nozzle, to which the suspension to be applied is fed via a distributor tube.
  • the metering gap of this device is formed from two lips extending over the web width.
  • Such a device can be used for much higher operating speeds, since the suspension to be applied in this device can be supplied under pressure.
  • the increased pressure causes the nozzle gap, in particular in the middle region of the material web expands and thus leads to an increased order and thus to a non-uniform line image across the web width. This will not be completely eliminated by a downstream doctor, as a bending of the doctor bed can not be prevented.
  • For influencing the layer thickness are in this device at the gap lips sectionally arranged adjustment provided over which the gap width and thus the flow rate can be influenced.
  • the object of the invention is to provide a simple application device, in particular for high-speed coating systems for direct or indirect application of liquid to pasty suspensions on paper or board webs, with which it is possible without complex adjustment and control devices, a uniform streak-free Coating also allow for wide paper or board webs.
  • a laminar flow can be achieved by stage diffusers
  • the object of the invention with the features of claim 1 is achieved.
  • Advantageous embodiments of the device are specified in the subclaims.
  • the device according to the invention With the device according to the invention, a surprisingly good uniform line image of the applied suspension over the entire width of the paper or board web is achieved without a strip pattern in the order is recognizable by the present between the individual outlet openings webs of the diffuser block. Also, the suspension order over the entire width of the paper or board web is very uniform. A permanent measurement of the suspension order and subsequent corrective adjustment of the application gap or the supplied amount of suspension is unnecessary, so that the cost of such a device according to the invention can be kept low.
  • FIG. 1 a sectional view of the device according to the invention for the indirect application of viscous glue.
  • a cross section through the device is shown.
  • the device is attached to the crossbeam 1, in which the feed tube 2 is arranged for the glue to be applied.
  • a plurality of outlets 3 are arranged over the entire width of the non-illustrated paper web to be coated, which are connected by means of webs 4 and the screw 5 with the diffuser block 6.
  • the diffuser block 6 consists of a multiplicity of individual diffusers whose round inlet cross-section widens continuously to form a rectangular outlet cross-section.
  • the walls between the individual diffusers are tapered on the output side so that no vortices are generated in the glue suspension at these points.
  • the further guidance of the glue suspension is ensured on the transfer roller 9 facing side of the diffuser block 6 by the diffuser lip 7.
  • the overflow gap 8 Between the transfer roller 9 and the end of the diffuser lip 7 is the overflow gap 8, on which the too much added glue suspension in the Leim Weg Equipmentswanne 15 and from there into the so-called coating kitchen, not shown here, in which Glue suspension is recycled, can be returned.
  • the glue suspension is passed to the doctor bed 10.
  • the doctor bed 10 of the roller blade 11 is arranged, which is in operative connection with the transfer roller 9.
  • a not shown corrugation is introduced in the direction of its longitudinal axis.
  • the clamping device 14 fixes the doctor bed 10 between the crossbar 1 and the hose holder 13. With the pressure hose 12, the fine pressing of the roller blade 11 and thus the thickness of the glue layer to be applied is adjustable. About a separate pivot point, not shown, the adjustment of the overflow gap 8 is possible.

Landscapes

  • Coating Apparatus (AREA)
  • Paper (AREA)
  • Making Paper Articles (AREA)

Claims (5)

  1. Dispositif pour l'application directe ou indirecte des suspensions liquides ou pâteuses sur une bande courante de papier ou carton contenant:
    - un cylindre de guidage de la bande arrangé de travers à la direction de la bande de papier ou carton ou un cylindre de transmission (9) étant en interaction avec un cylindre de presse,
    - un tuyau d'approvisionnement (2) de la suspension à appliquer qui s'étend sur tout le long de la bande de papier ou carton et qui comporte une multitude de sorties (3) juxtaposées, élargies en forme de diffuseur et dirigées au cylindre de guidage de la bande ou au cylindre de transmission (9),
    - une fente déversoir (8) formée près de la sortie du bloc diffuseur (6), entre celle-ci et le cylindre de guidage de la bande ou le cylindre de transmission (9), du côté de l'entrée par rapport à la direction de rotation du même cylindre,
    - une racle destinée à être pressée au cylindre de guidage de la bande ou au cylindre de transmission (9), arrangée prés de la sortie du bloc diffuseur (6) du côté du départ par rapport à la direction de rotation du même cylindre,
    caractérisé en ce que
    - en supplément aux sorties (3) élargies en forme de diffuseur du tuyau d'approvisionnement (2), un bloc diffuseur (6) qui s'étend sur tout le long de la bande en papier ou carton est prévu qui contient une multitude de diffuseurs individuels ayant une coupe transversale rectangulaire au niveau de la sortie et étant séparés de la sortie (3) voisine par des traverses (4) rétrécies qui ne s'étendent pas jusqu'au cylindre de guidage de la bande ou cylindre de transmission (9).
  2. Dispositif suivant la revendication 1, caractérisé en ce que les sorties (3) élargies en forme de diffuseur sont dirigées au cylindre de guidage de la bande ou au cylindre de transmission (9) de la sorte que leurs axes prolongés entrent en intersection avec la circonférence du cylindre de guidage de la bande ou du cylindre de transmission directement devant le point de connotation de la racle avec le cylindre de guidage de la bande ou le cylindre de transmission (9).
  3. Dispositif suivant les revendications 1 ou 2, caractérisé en ce que la racle est une racle roulante (11).
  4. Dispositif suivant la revendication 3, caractérisé en ce que la racle roulante (11) comporte des striations orientées en direction de son axe sur l'ensemble de sa surface cylindrique.
  5. Dispositif suivant les revendications 3 ou 4, caractérisé en ce que la pression d'application de la racle roulante (11) est gouvernable par un tuyau de pression (12) qui se trouve entre l'encadrement de la racle (10) et le porteur du tuyau (13).
EP04013297A 2003-07-09 2004-06-05 Dispositif pour appliquer directement ou indirectement une suspension liquide ou pateuse sur une bande de papier ou carton Expired - Lifetime EP1496155B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10331145 2003-07-09
DE10331145A DE10331145A1 (de) 2003-07-09 2003-07-09 Vorrichtung zum direkten oder indirekten Auftragen von flüssigen bis pastösen Suspensionen auf Papier- oder Kartonbahnen

Publications (3)

Publication Number Publication Date
EP1496155A2 EP1496155A2 (fr) 2005-01-12
EP1496155A3 EP1496155A3 (fr) 2007-01-03
EP1496155B1 true EP1496155B1 (fr) 2010-03-24

Family

ID=33441694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04013297A Expired - Lifetime EP1496155B1 (fr) 2003-07-09 2004-06-05 Dispositif pour appliquer directement ou indirectement une suspension liquide ou pateuse sur une bande de papier ou carton

Country Status (3)

Country Link
EP (1) EP1496155B1 (fr)
AT (1) ATE462043T1 (fr)
DE (2) DE10331145A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005027791A1 (de) 2005-06-15 2006-12-21 Pama Papiermaschinen Gmbh Vorrichtung zum Auftragen von flüssigen bis pastösen Suspensionen auf Papier- oder Kartonbahnen
US20100224286A1 (en) * 2007-10-05 2010-09-09 Basf Se Method for coating zinc-plated steel strips with aqueous formulations of acidic polymers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417487A1 (de) 1984-05-11 1985-11-21 J.M. Voith Gmbh, 7920 Heidenheim Vorrichtung zum auftragen einer fluessigkeit auf eine laufende bahn
FI90634C (fi) 1989-01-17 1994-03-10 Valmet Paper Machinery Inc Sivelylaite ja menetelmä materiaalirainan sivelemiseksi
FI91298C (fi) 1992-04-10 1994-06-10 Valmet Paper Machinery Inc Menetelmä materiaalirainan päällystämiseksi
DE4217528C2 (de) * 1992-05-27 1996-05-30 Voith Gmbh J M Streicheinrichtung für laufende Warenbahnen
US5376177A (en) * 1993-08-09 1994-12-27 Macmillan Bloedel Limited Coat weight profiling
DE4414921C2 (de) 1994-04-28 1998-03-19 Voith Gmbh J M Verfahren und Vorrichtung zum Auftragen von mindestens einem flüssigen Medium auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
DE4432177A1 (de) 1994-09-09 1996-03-14 Voith Gmbh J M Auftragswerk zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn
DE29510486U1 (de) * 1995-06-30 1995-08-17 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Rollrakel-Baugruppe
EP0761877A3 (fr) * 1995-09-06 1997-06-25 Voith Sulzer Papiermasch Gmbh Dispositif d'application directe ou indirecte de matériau fluide ou pâteux sur une bande en mouvement, en particulier de papier ou carton
DE19801140A1 (de) 1998-01-14 1999-07-15 Voith Sulzer Papiertech Patent Vorrichtung zum direkten oder indirekten Auftrag eines flüssigen bis pastösen Auftragsmediums auf eine laufende Materialbahn sowie Betriebsverfahren für eine solche Vorrichtung

Also Published As

Publication number Publication date
DE10331145A1 (de) 2005-01-27
ATE462043T1 (de) 2010-04-15
EP1496155A2 (fr) 2005-01-12
DE502004010929D1 (de) 2010-05-06
EP1496155A3 (fr) 2007-01-03

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