EP2811070B1 - Unité d'application d'un revêtement ou dispositif de mesure utilisé pour appliquer une substance de traitement sur une bande de fibres - Google Patents

Unité d'application d'un revêtement ou dispositif de mesure utilisé pour appliquer une substance de traitement sur une bande de fibres Download PDF

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Publication number
EP2811070B1
EP2811070B1 EP13170733.3A EP13170733A EP2811070B1 EP 2811070 B1 EP2811070 B1 EP 2811070B1 EP 13170733 A EP13170733 A EP 13170733A EP 2811070 B1 EP2811070 B1 EP 2811070B1
Authority
EP
European Patent Office
Prior art keywords
application module
application
application unit
coating
composite material
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.)
Revoked
Application number
EP13170733.3A
Other languages
German (de)
English (en)
Other versions
EP2811070A1 (fr
Inventor
Mika Koponen
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.)
Valmet Technologies Oy
Original Assignee
Valmet Technologies Oy
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
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Application filed by Valmet Technologies Oy filed Critical Valmet Technologies Oy
Priority to EP13170733.3A priority Critical patent/EP2811070B1/fr
Publication of EP2811070A1 publication Critical patent/EP2811070A1/fr
Application granted granted Critical
Publication of EP2811070B1 publication Critical patent/EP2811070B1/fr
Revoked legal-status Critical Current
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Classifications

    • 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
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the 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
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls

Definitions

  • the invention relates to an application unit of a coating or sizing device for applying treatment substance on a fiber web, which application unit comprises a support beam and an application module. More especially the invention relates to an application unit according to the preamble of claim 1.
  • a typical production and treatment line comprises a head box, a wire section and a press section as well as a subsequent drying section and a reel-up.
  • the production and treatment line can further comprise other devices and sections for finishing the fiber web, for example, a sizer, a calender, a coating section.
  • the production and treatment line also comprises at least one winder for forming customer rolls as well as a roll packaging apparatus.
  • fiber webs are meant for example paper and board webs.
  • Sizing is used to alter the properties of a fiber web by adding sizing agents (sizing medium), for example glue chemicals onto the surface of the fiber web at the fiber web machine.
  • sizing agent for example glue chemicals
  • coating onto surface of a fiber web is added a layer or layers of coating paste (coating medium) at a coating station followed by drying.
  • the coating or the sizing of a fiber web typically utilizes a coating device - a coater - or a sizing device - a sizer.
  • a coating device - a coater - or a sizing device - a sizer In connection with the coaters and sizers different kinds of application technology for application of the coating medium or the sizing medium on the fiber web are employed, for example curtain technology or blade coating technology or film transfer technology or rod coating technology or air brush coating technology or spray coating technology.
  • an application module of an application unit is utilized for applying the treatment substance on to a coating roll for then transferring it onto the fiber web of for applying the treatment substance directly onto the fiber web.
  • the application unit and the application module supported on a support beam of the application unit extend over the whole width of the fiber web and can thus be cated spaced apart in longitudinal direction of the application module and at the other longitudinal end is provided a flow-through.
  • the application module comprises several hundred, for example 750 feed openings at 50 - 150 mm distance.
  • the application module is typically constructed of acid proof steel and as one piece to avoid leakage points.
  • the acid proof steel construction for the application module is heavy and thus difficult to be moved and complicated and expensive to produce. In some cases even acid proof steel is not resistant enough for the chemicals used in the treatment substance.
  • DE utility model publication 202004021048 is disclosed a device for applying a fluid substance on a passing material web comprising an application device for applying the substance and/or a doctor for smoothening and/or dosing the substance.
  • the application and/or the doctor are supported by a support frame, which can be produced of steel, refined steel, synthetic material of fiber reinforced material.
  • a carrier beam which has a longitudinal and hollow body with a round or polygonal cross section of a fiber compound material produced by winding.
  • the fiber compound material can be plastics reinforced with glass or carbon fibers.
  • the beam can be used in a web coating machine, using a liquid or paste coating medium to be applied to the surface of a moving web of paper or cardboard, for supporting at least one applicator and/or doctor.
  • support structures for example the support beams, for treatment substance application devices, especially for application modules, are of fiber compound material or of other composite material and the application device is of metallic material thermal expansion in longitudinal direction i.e. in cross direction of the fiber web may cause problems due to dissimilar bending behavior of the structures caused by different thermal expansion coefficients of used materials.
  • the production method sets limits to the design of the structure.
  • An object of the invention is to create a method and an application unit of a coating or sizing device for applying treatment substance on a fiber web, in which the above problems and disadvantages are eliminated or at least minimized.
  • Another object of the invention is to provide an application unit, which is producible cost-effectively.
  • the application unit of a coating or sizing device for applying treatment substance on a fiber web according to the invention is mainly characterized by the features of claim 1.
  • the application unit of a coating or sizing device for applying treatment substance on a fiber web wherein application unit comprises a support beam and an application module comprising at one of its longitudinal ends an opening for the treatment substance inlet, a feed chamber with feed openings located spaced apart in longitudinal direction of the application module and a flow-through at the other longitudinal end of the application module, which application module is supported on the support beam and which application module of the application unit is constructed at least partially of composite material.
  • the support beam of the application unit is constructed at least partially of composite material.
  • the application module of the application unit is constructed substantially totally of composite material.
  • the support beam of the application unit is constructed substantially totally of composite material.
  • the application unit is constructed substantially totally of composite material.
  • the application module of the application unit is produced by pultrusion.
  • the application module of the application unit further comprises connecting element for in a releasable manner attaching a dosing arrangement to the application module.
  • the application unit further comprises an attachment element for attaching the application module to the support beam and the application module and any of the attachment element and/or the support beam and/or the connecting element is formed as one piece by pultrusion of composite material.
  • the connecting element between the application module and the dosing arrangement at the application module's side can also be a separate connecting element attached to the application module.
  • the dosing arrangement can comprise a connecting element and the dosing element or the dosing element can be connected directly to the application module.
  • the application unit is utilized for applying the treatment substance on to a coating roll for then transferring it onto the fiber web of for applying the treatment substance directly onto the fiber web.
  • the application unit extends over the whole width of the fiber web and can be over 10 meters long.
  • the treatment substance is fed to the application module of the application unit at one of its longitudinal ends and applied from a feed chamber through feed openings located spaced apart in longitudinal direction of the application module and at the other longitudinal end is provided a flow-through.
  • the application module comprises several hundred, for example 750 feed openings at 50 - 150 mm distance.
  • the application module is constructed to have the connecting element and/or the attachment element and/or support beam as separate parts of the application module, the application module is advantageously produced by pultrusion or winding.
  • the application module is constructed of composite material and the elements to be attached can be of same or different composite material or of other material, for example steel.
  • Figure 1 is a schematic example of one advantageous application unit according to the invention.
  • an application module 10 of an application unit for applying treatment substance onto surface of a roll 17 of a coating or sizing device (not shown).
  • the treatment substance is dosed by a rod 16 supported in a rod-bed 15, which is by a formfitting attachment 14 connected in a releasable manner to the application module 10.
  • the application module 10 is supported by an attachment element 12 on the support beam 13 of the application unit.
  • the connecting element (the formfitting attachment) 14 at the application module's side between the application module 10 and the dosing arrangement (the rod-bed 15 and the rod 16) are formed as part of the application module 10.
  • the connecting element between the application module 10 and the dosing arrangement 15, 16 at the application module's side can also be a separate connecting element attached to the application module 10.
  • the dosing arrangement can comprise a connecting element and the dosing element as in this example or the dosing element can be connected directly to the application module 10 by the connecting element 14.
  • the attachment element 12 can also be formed as part of the application module 10.
  • the application module of the application unit 10 is utilized for applying the treatment substance on to a coating roll 17 for then transferring it onto the fiber web of for applying the treatment substance directly onto the fiber web.
  • the application unit extends over the whole width of the fiber web and can be over 10 meters long.
  • the treatment substance is fed to the application module 10 at one of its longitudinal ends and applied from a feed chamber 11 through feed openings (not shown) located spaced apart in longitudinal direction of the application module 10 and at the other longitudinal end is provided a flow-through.
  • the application module comprises several hundred, for example 750 feed openings at 50 - 150 mm distance.
  • the application module 10 is constructed at least partially of composite material, for example of glass fiber, carbon fiber or aramid.
  • the support beam 13 is constructed at least partially of composite material, for example of glass fiber, carbon fiber or aramid.
  • the application module 10 is constructed to have the connecting element 14 and/or the attachment element 12 as the same part, the application module 10 is advantageously produced by pultrusion.
  • the application module is constructed substantially totally of composite material.
  • the support beam 13 can be constructed as the same part with the application module 10 and/13 the attachment element 12 and/or the connecting element 14 i.e. the whole structure comprising the application element 10, the attachment element 12 and the connecting element 14 is formed as one piece by pultrusion.
  • the application module 10 is constructed to have the connecting element 14 and/or the attachment element 12 as separate parts, the application module 10 is advantageously produced by pultrusion or winding.
  • the application module 10 is constructed of composite material and the elements to be attached 12, 14 can be of same or different composite material or of other material, for example steel.
  • the support beam 13 is a separate part from the application module 10, it can be constructed of same or different composite material or of other material, for example of steel.
  • cross section of the application module 10 and of the support beam 13 is substantially round but also other forms can be utilized.

Landscapes

  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (8)

  1. Unité d'application d'un dispositif de revêtement ou de calibrage pour l'application d'une substance de traitement sur une toile de fibres, caractérisée en ce que l'unité d'application comprend une barre de support (13) et un module d'application (10) comprenant une ouverture à l'une de ses extrémités longitudinales, pour l'entrée de la substance de traitement, une chambre d'alimentation (11) avec des ouvertures d'alimentation disposées de façon espacée dans la direction longitudinale du module d'application (10), et un passage d'écoulement à l'autre extrémités latérales du module d'application (10), ledit module d'application (10) étant supporté par un élément de fixation (12) sur la barre de support (13), et en ce que le module d'application (10) est au moins partiellement constitué d'un matériau composite.
  2. Unité d'application selon la revendication 1, caractérisée en ce que la barre de support (13) est au moins partiellement constituée d'un matériau composite.
  3. Unité d'application selon la revendication 1, caractérisée en ce que le module d'application (10) est réalisé par pultrusion.
  4. Unité d'application selon la revendication 1 ou 3, caractérisée en ce que le module d'application (10) comprend en outre un élément de raccordement (14) destiné à raccorder un système de dosage (15, 16) de façon amovible au module d'application.
  5. Unité d'application selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le module d'application (10) et n'importe lequel parmi l'élément de fixation (12) et/ou la barre de support (13) et/ou l'élément de raccordement (14) est formé comme une seule pièce par pultrusion.
  6. Unité d'application selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le module d'application (10) est quasiment entièrement constitué d'un matériau composite.
  7. Unité d'application selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la barre de support est quasiment entièrement constituée d'un matériau composite.
  8. Unité d'application selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'unité d'application est quasiment entièrement constituée d'un matériau composite.
EP13170733.3A 2013-06-06 2013-06-06 Unité d'application d'un revêtement ou dispositif de mesure utilisé pour appliquer une substance de traitement sur une bande de fibres Revoked EP2811070B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13170733.3A EP2811070B1 (fr) 2013-06-06 2013-06-06 Unité d'application d'un revêtement ou dispositif de mesure utilisé pour appliquer une substance de traitement sur une bande de fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13170733.3A EP2811070B1 (fr) 2013-06-06 2013-06-06 Unité d'application d'un revêtement ou dispositif de mesure utilisé pour appliquer une substance de traitement sur une bande de fibres

Publications (2)

Publication Number Publication Date
EP2811070A1 EP2811070A1 (fr) 2014-12-10
EP2811070B1 true EP2811070B1 (fr) 2016-04-20

Family

ID=48576822

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Application Number Title Priority Date Filing Date
EP13170733.3A Revoked EP2811070B1 (fr) 2013-06-06 2013-06-06 Unité d'application d'un revêtement ou dispositif de mesure utilisé pour appliquer une substance de traitement sur une bande de fibres

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EP (1) EP2811070B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9665854B1 (en) 2011-06-16 2017-05-30 Consumerinfo.Com, Inc. Authentication alerts

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6202557B1 (en) 1997-01-30 2001-03-20 Voith Sulzer Papiermaschinen Gmbh Applicator system roll
EP1211053A2 (fr) 2000-11-29 2002-06-05 Voith Paper Patent GmbH Poutrelle de support
DE202004021048U1 (de) 2004-02-02 2006-08-17 Voith Paper Patent Gmbh Auftragsvorrichtung
WO2007027150A1 (fr) 2005-08-30 2007-03-08 Mattssonföretagen I Uddevalla Aktiebolag Dispositif et procédé de couchage
WO2012118438A1 (fr) 2011-03-03 2012-09-07 Mattssonföretagen I Uddevalla Ab Procédé et dispositif de dosage et revêtement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6202557B1 (en) 1997-01-30 2001-03-20 Voith Sulzer Papiermaschinen Gmbh Applicator system roll
EP1211053A2 (fr) 2000-11-29 2002-06-05 Voith Paper Patent GmbH Poutrelle de support
US20020102372A1 (en) 2000-11-29 2002-08-01 Christioph Henninger Support beam
DE202004021048U1 (de) 2004-02-02 2006-08-17 Voith Paper Patent Gmbh Auftragsvorrichtung
WO2007027150A1 (fr) 2005-08-30 2007-03-08 Mattssonföretagen I Uddevalla Aktiebolag Dispositif et procédé de couchage
WO2012118438A1 (fr) 2011-03-03 2012-09-07 Mattssonföretagen I Uddevalla Ab Procédé et dispositif de dosage et revêtement

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