EP1733802A1 - Dispositif pour appliquer une suspension liquide ou pateuse sur une bande de papier ou carton - Google Patents

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

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Publication number
EP1733802A1
EP1733802A1 EP06001791A EP06001791A EP1733802A1 EP 1733802 A1 EP1733802 A1 EP 1733802A1 EP 06001791 A EP06001791 A EP 06001791A EP 06001791 A EP06001791 A EP 06001791A EP 1733802 A1 EP1733802 A1 EP 1733802A1
Authority
EP
European Patent Office
Prior art keywords
roller
transfer roller
web
rotation
diffuser
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.)
Withdrawn
Application number
EP06001791A
Other languages
German (de)
English (en)
Inventor
Harald Suttor
Uwe Sachse
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 EP1733802A1 publication Critical patent/EP1733802A1/fr
Withdrawn legal-status Critical Current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 applying 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 not suitable as an open system, especially when suspensions of high viscosity to be processed at the high working speeds of more than 800 m / min currently used 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 is applied by means of a reaching across the entire width of the material web nozzle applicator on an applicator roll and finely metered 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. However, the increased pressure causes the nozzle gap, especially in the middle region the material web expands and thus leads to an increased order and thus to an uneven line pattern over the web width. This will not be completely eliminated by a downstream doctor, as a bending of the doctor bed can not be prevented.
  • adjustment elements arranged in sections at the gap lips are provided in this device, via which the gap width and thus the flow rate can be influenced.
  • servomotors are provided, which ensure via the measurement of the applied layer and a control loop that the layer remains constant over the entire web width.
  • the cost of producing such a device is very high.
  • such a control circuit with its many elements on a considerable susceptibility to interference is in the DE 198 01 140 A1 described, which has a complex control system to achieve a uniform line image.
  • the object of the invention is to provide such a device for applying liquid to pasty suspensions after DE 103 31 145 A1 in which the suspension is transferred by means of a transfer roller to the paper or board web, so to change that the required amount of the circulating suspension can be reduced without affecting the quality of the line image.
  • suspension throughput can be greatly reduced by the overflow of the applicator without affecting the line image, if arranged in the direction of rotation of the transfer roller at the inlet end of the diffuser block, the overflow gap between the diffuser block and transfer roller covering the suspension partially elastic elastic lip ,
  • the suspension throughput can be very greatly reduced by the application device, without the line image of the applied suspension is impaired.
  • the partial permeability of the elastic lip is ensured by at least one row of juxtaposed openings reaching across the width of the paper or board web, which are cylindrical holes in the simplest form.
  • the openings in the elastic lip are formed as slots whose longitudinal axes extend to the direction of rotation of the transfer roller at an angle which has a value between 0 ° and 45 °.
  • Another way to ensure the partial permeability of the elastic lip is that it is made of porous open-pore material.
  • At least one roller cleaning device in the direction of rotation in front of the device for applying the suspension to the transfer roller.
  • Such a roller cleaning device can advantageously consist of at least one over the width of the transfer roller reaching high pressure spray pipe and at least one downstream scraper, which are arranged on a separate sump for the cleaning water.
  • high-pressure spray pipe impurities are sprayed from the transfer roller and removed with the scraper on the transfer roller adhering cleaning water and residual impurities.
  • FIG. 1 shows a cross section through the glue application device 1.
  • the device is attached to the crossbar 2, in which the feed tube 3 is arranged for the glue to be applied.
  • the feed tube 3 In the feed tube 3 are located over the entire width of the paper web not shown to be coated a plurality of outlets 4.
  • diffusers 5 At the outlets 4 diffusers 5 are arranged, which have a round inlet cross-section at the outlets 4, which widens continuously to a rectangular outlet cross-section.
  • the directly adjacent diffusers 5 are connected by means of the screw 6 to a diffuser block 7.
  • the walls between the individual diffusers 5 run out pointed on the output side, so that no vortexes are generated in the glue suspension at these points.
  • the glue suspension is secured to the transfer roller 10 on the one hand by the diffuser block 7 fastened to the transverse bar 2 and on the opposite side by the diffuser lip 8.
  • an elastic lip 9 is fixed, which extends in the manner of a drag scraper up to the transfer roller 10.
  • this elastic lip 9 a plurality of juxtaposed, aligned in the running direction of the transfer roller 10 slots are incorporated over the entire effective width.
  • the overflow of the glue suspension is ensured, so that a continuous laminar flow and thus a uniform line image of the applied glue layer is ensured.
  • the glue slurry overflowing over the slots is returned via the glue recycling trough 16 into the circulation of the glue suspension.
  • the coated on the transfer roller 10 glue suspension is passed to the doctor bed 11.
  • the doctor bed 11 of the roller blade 12 is arranged, which is in operative connection with the transfer roller 10.
  • On the peripheral surface of the roller blade 12, a not shown corrugation is introduced in the direction of its longitudinal axis.
  • the clamping device 15 fixes the doctor bed 11 between the crossbar 2 and the hose holder 14. With the pressure hose 13, the fine pressing of the roller blade 12 and thus the thickness of the glue suspension to be applied is adjustable.
  • the glue slurry applied to the transfer roller 10 is subsequently transferred to the paper web by means of a film press (not shown).
  • the glue application device 1 is shown together with a roller cleaning system 17 in section.
  • the roller cleaning system 17 is arranged on the transfer roller 10 in the direction of rotation in front of the glue application device 1. It consists of a high-pressure spray tube 18 which has a plurality of spray nozzles, whereby the entire width of the surface of the transfer roller 10 can be cleaned of adhering fibers, glue residues and other particles.
  • a scraper 20 is arranged, with which the adhering to the transfer roller 10 water and residual impurities are removed.
  • the high-pressure spray pipe 18 and the scraper 20 are installed in a collecting trough 19, which is closed with a splash guard 21 so that the cleaning water can not get into the glue suspension.
  • the cleaning water is removed via located on the sump 19 sockets.
EP06001791A 2005-06-15 2006-01-28 Dispositif pour appliquer une suspension liquide ou pateuse sur une bande de papier ou carton Withdrawn EP1733802A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510027791 DE102005027791A1 (de) 2005-06-15 2005-06-15 Vorrichtung zum Auftragen von flüssigen bis pastösen Suspensionen auf Papier- oder Kartonbahnen

Publications (1)

Publication Number Publication Date
EP1733802A1 true EP1733802A1 (fr) 2006-12-20

Family

ID=36051397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06001791A Withdrawn EP1733802A1 (fr) 2005-06-15 2006-01-28 Dispositif pour appliquer une suspension liquide ou pateuse sur une bande de papier ou carton

Country Status (2)

Country Link
EP (1) EP1733802A1 (fr)
DE (1) DE102005027791A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962173A (zh) * 2012-11-13 2013-03-13 江苏海大印染机械有限公司 一种逆转辊涂布间隙调节装置
EP3023163A1 (fr) * 2014-11-18 2016-05-25 Valmet Technologies, Inc. Lame d'étanchéité
US9925555B2 (en) 2016-02-08 2018-03-27 Valmet Technologies, Inc. Folded sealing blade for a coating applicator

Citations (13)

* 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
DE4000556A1 (de) 1989-01-17 1990-07-19 Valmet Paper Machinery Inc Invertierte rakel-dosiereinheit und rakelstreichverfahren fuer eine materialbahn
DE4303577A1 (de) 1992-04-10 1993-10-14 Valmet Paper Machinery Inc Verfahren zum Beschichten einer Materialbahn
EP0571849A1 (fr) * 1992-05-27 1993-12-01 J.M. Voith GmbH Dispositif d'enduction pour des bandes en mouvement
US5376177A (en) * 1993-08-09 1994-12-27 Macmillan Bloedel Limited Coat weight profiling
DE4414921A1 (de) 1994-04-28 1995-11-02 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
DE29617230U1 (de) * 1996-10-04 1996-12-05 Voith Sulzer Papiermasch Gmbh Auftragseinrichtung zum Auftragen eines Streichmediums
DE29619169U1 (de) * 1996-11-08 1997-01-23 Voith Sulzer Papiermasch Gmbh Auftragseinrichtung zum Auftragen eines Mediums auf eine laufende Bahn
US5738726A (en) * 1995-06-30 1998-04-14 Voith Sulzer Papiermaschinen Gmbh Roll doctor assembly
DE29716288U1 (de) * 1997-09-10 1999-01-21 Voith Sulzer Papiermasch Gmbh Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
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
EP1496155A2 (fr) * 2003-07-09 2005-01-12 PAMA Papiermaschinen GmbH Dispositif pour appliquer directement ou indirectement une suspension liquide ou pateuse sur une bande de papier ou carton

Patent Citations (14)

* 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
DE4000556A1 (de) 1989-01-17 1990-07-19 Valmet Paper Machinery Inc Invertierte rakel-dosiereinheit und rakelstreichverfahren fuer eine materialbahn
DE4303577A1 (de) 1992-04-10 1993-10-14 Valmet Paper Machinery Inc Verfahren zum Beschichten einer Materialbahn
EP0571849A1 (fr) * 1992-05-27 1993-12-01 J.M. Voith GmbH Dispositif d'enduction pour des bandes en mouvement
US5376177A (en) * 1993-08-09 1994-12-27 Macmillan Bloedel Limited Coat weight profiling
DE4414921A1 (de) 1994-04-28 1995-11-02 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
US5738726A (en) * 1995-06-30 1998-04-14 Voith Sulzer Papiermaschinen Gmbh Roll doctor assembly
DE29617230U1 (de) * 1996-10-04 1996-12-05 Voith Sulzer Papiermasch Gmbh Auftragseinrichtung zum Auftragen eines Streichmediums
DE29619169U1 (de) * 1996-11-08 1997-01-23 Voith Sulzer Papiermasch Gmbh Auftragseinrichtung zum Auftragen eines Mediums auf eine laufende Bahn
DE29716288U1 (de) * 1997-09-10 1999-01-21 Voith Sulzer Papiermasch Gmbh Vorrichtung zum direkten oder indirekten Auftragen eines flüssigen oder pastösen Auftragsmediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton
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
EP1496155A2 (fr) * 2003-07-09 2005-01-12 PAMA Papiermaschinen GmbH Dispositif pour appliquer directement ou indirectement une suspension liquide ou pateuse sur une bande de papier ou carton
DE10331145A1 (de) 2003-07-09 2005-01-27 Pama Papiermaschinen Gmbh Vorrichtung zum direkten oder indirekten Auftragen von flüssigen bis pastösen Suspensionen auf Papier- oder Kartonbahnen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962173A (zh) * 2012-11-13 2013-03-13 江苏海大印染机械有限公司 一种逆转辊涂布间隙调节装置
EP3023163A1 (fr) * 2014-11-18 2016-05-25 Valmet Technologies, Inc. Lame d'étanchéité
US9925555B2 (en) 2016-02-08 2018-03-27 Valmet Technologies, Inc. Folded sealing blade for a coating applicator

Also Published As

Publication number Publication date
DE102005027791A1 (de) 2006-12-21

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