EP2101969A1 - Installation pour encoller des fibres pour la production de panneaux de fibres - Google Patents

Installation pour encoller des fibres pour la production de panneaux de fibres

Info

Publication number
EP2101969A1
EP2101969A1 EP07819381A EP07819381A EP2101969A1 EP 2101969 A1 EP2101969 A1 EP 2101969A1 EP 07819381 A EP07819381 A EP 07819381A EP 07819381 A EP07819381 A EP 07819381A EP 2101969 A1 EP2101969 A1 EP 2101969A1
Authority
EP
European Patent Office
Prior art keywords
suction
air
chute
conveyor belt
fibers
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
EP07819381A
Other languages
German (de)
English (en)
Other versions
EP2101969B1 (fr
Inventor
Dieter Aengenvoort
Michael SCHÖLER
Klaus Schürmann
Lothar Sebastian
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.)
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Original Assignee
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
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 Siempelkamp Maschinen und Anlagenbau GmbH and Co KG filed Critical Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Priority to PL07819381T priority Critical patent/PL2101969T3/pl
Publication of EP2101969A1 publication Critical patent/EP2101969A1/fr
Application granted granted Critical
Publication of EP2101969B1 publication Critical patent/EP2101969B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
    • B27N1/0254—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with means for spraying the agent on the material before it is introduced in the mixer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/70—Spray-mixers, e.g. for mixing intersecting sheets of material
    • B01F25/72—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles
    • B01F25/721—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles for spraying a fluid on falling particles or on a liquid curtain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0263—Mixing the material with binding agent by spraying the agent on the falling material, e.g. with the material sliding along an inclined surface, using rotating elements or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/029—Feeding; Proportioning; Controlling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/15—Combined or convertible surface bonding means and/or assembly means

Definitions

  • the invention relates to a system for gluing fibers for the production of fiberboard, especially MDF boards or the like wood-based panels, with a fiber feeder with at least one acted upon with conveying air for the fiber transport fiber feed line, which via a z.
  • arcuate fiber deflection opens into a fiber outlet tube, with a downstream of the fiber outlet tube chute, with a z.
  • the suction device comprises one or more suction boxes, to which one or more suction lines are connected.
  • - MDF boards means Medium Density Fiber boards. In such a plant to be glued fibers are pneumatically z.
  • a jacket air supply device is preferably provided, with a jacket air duct for generating a jacket air flow surrounding the fiber flow in the chute, with the jacket air as well as the transport air with the suction duct. Device is sucked, through the transport or screen belt through.
  • Such a plant for gluing fibers is known from DE 102 47412 A1, DE 102 47413 A1, DE 102 47 414 A1 and DE 10 2004 001 527 A1.
  • the suction device has a plurality of in the strip running direction or transport direction successively arranged suction elements in the form of suction registers or Saugtrichtern.
  • the fibers fall through the chute onto the screen belt on which a fiber mat is formed. Possibly. Unused glue drops also fall through the chute on this fiber mat, so it comes as it were to a gluing.
  • the gluing zone is followed by a post-drying zone.
  • a fresh fiber feed can be provided below the chute with which fresh fibers can be applied to the wire belt before it is guided along below the chute.
  • a preliminary fleece forms on the screen belt as it were, whereby the glued fibers are then not scattered directly onto the screen belt but onto the preliminary fleece.
  • soiling of the screen belt with not yet cured glued fibers or glue should be avoided or reduced.
  • the invention has for its object to provide a system of the embodiment described above, with which fibers for the production of fiberboard esp. MDF boards can be properly glued in a rational and economical manner. In particular, contamination of the system should be avoided or be easily and inexpensively removable.
  • the invention teaches in a generic system of the type described above that the suction boxes are designed as cleaning boxes with at least one cleaning device for removing by the conveyor belt in the suction boxes penetrating (glued and / or unembossed) fibers.
  • a cleaning device preferably has at least one cleaning opening closable by means of a shut-off flap or the like closure element.
  • the cleaning device has a conveying device, for. B.
  • the invention is based on the recognition that it is first of all expedient, in a chute-gluing device in a conventional manner, the glued fibers below the chute on an air-permeable conveyor belt, for. B. filter belt or filter belt and are arranged below the conveyor belt suction register. Taking into account the suction capacities or suction volume flows through the conveyor belt required in practice, it is not completely possible to prevent fibers and especially glued fibers and possibly also glue drops from passing through the conveyor belt to a certain extent into the suction boxes.
  • the invention has now recognized that a perfect and lasting operation can be ensured if the suction boxes as cleaning boxes with a cleaning device, eg. B.
  • a screw conveyor and a cleaning opening are provided.
  • the cleaning boxes at predetermined intervals or continuously or quasi-continuously clean and thus free of fibers or glued fibers and caking, which settle in the cleaning boxes. It may be sufficient to work with only two relatively large extraction boxes, the suction of these two suction boxes can be set differently or equal.
  • the cleaning screws preferably operate in a direction to the transport direction of the conveyor belt orthogonal direction, while the suction lines are preferably connected to the suction boxes in a direction which is parallel to the transport direction of the conveyor belt.
  • the suction boxes are arranged below the chute in only one part region designed as a suction region, wherein the suction-free region arranged upstream of this suction region forms a fiber feed region.
  • the lower exit surface of the chute is therefore not completely provided with suction registers or suction boxes, but there is a suction-free area upstream of the suction area as a fiber-feed area.
  • the invention proposes that the suction device is controllable in dependence on the contamination of the conveyor belt. Consequently, the suction power can be increased with increasing contamination of the conveyor belt and consequently decreasing transmission of the conveyor belt, so that can be kept constant by appropriate control of the aspirated from the chute volume flow or can be adjusted in the desired manner.
  • the conveyor belt can be performed in a conventional manner as an endless circulating conveyor belt over Umlenkaggregate, wherein in the region of Conveyor belt return a conveyor belt cleaning device is arranged.
  • a conveyor belt cleaning device may consist on the one hand of a brush cleaning device and on the other hand, a wet cleaning device.
  • the invention proposes that this conveyor belt cleaning device is connected to a control device which controls the cleaning process as a function of the degree of soiling of the screen belt.
  • the sucking in of false air or ambient air leads to a support of the fiber jet emerging from the fiber outlet tube, so that overall a particularly homogeneous gluing can take place without caking in the area of the chute and in the region of the gluing device being observed.
  • the invention proposes that the volume flow of the ambient air to the volume flow of the conveyor in a ratio of 1: 1 to 1: 5, preferably 1: 2 to 1: 3 stands.
  • the volume flow of the ambient air may be in the ratio of 1: 1 to 1: 3, preferably 1: 1 to 1: 2, to the volume flow of the jacket air.
  • FIG. 2 shows an enlarged detail of the article according to FIG. 1 in the region of the collecting device
  • FIG. 3a shows a detail of the article according to FIG. 2 in a first embodiment
  • FIG. 3b shows a detail of the article according to FIG. 2 in a second embodiment
  • Fig. 4 is a schematic representation of the air technology of the system according to the invention.
  • a system for gluing fibers 1 for the production of fiberboard, in particular MDF boards is shown.
  • the system is designed for continuous operation and has a fiber feed unit. direction 2 with at least one with conveying air F acted upon by the fiber transport fiber supply line 3.
  • This vertically arranged fiber feed line 3 leads via an arcuate 180 ° fiber deflection line 4 into a likewise vertical direction! aligned fiber outlet tube 5.
  • This fiber outlet tube 5 is a chute 6 downstream, which is also vertically aligned and has a downwardly and consequently in the direction of expansion expanding cross-section.
  • a gluing device 7 is arranged with spray nozzles 8 for spraying the emerging from the fiber outlet tube 5 and entering the chute 6 fibers 1 with glue drops.
  • spray nozzles 8 are a variety of spray nozzles, z. B. 10 to 20 spray nozzles arranged on a nozzle ring, which surrounds the emerging from the fiber outlet tube 5 fiber stream.
  • a jacket air feed device 12 is provided with one or more jacket air ducts 13 for generating a jacket air flow M which bypasses the fiber flow in the chute.
  • the spray nozzles 8 are designed as two-substance nozzles and connected at least to a glue supply line and a compressed air line.
  • the chute is a collecting device 9 with an air-permeable conveyor belt 10 for collecting and discharging the fibers and arranged below the conveyor belt 10 suction device 11 for sucking air from the chute through the conveyor belt 10 therethrough.
  • the air-permeable conveyor belt 10 is designed as a sieve belt or filter belt.
  • the suction device 11 has two suction boxes 14, to each of which a suction line 15 is connected.
  • the collecting device 9 has a post-drying section 16, which is traversed by the arranged on the conveyor belt 10 and glued fibers.
  • a Faserab Geneva Flowervoriques in the form of a fiber discharge line 19 is connected with the interposition of a milling drum 17 and a rotary valve 18.
  • the suction boxes 14 according to FIGS. 3 a and 3 b are designed as cleaning boxes, each with a cleaning device 20 for removing fibers that penetrate the suction boxes 14 through the conveyor belt 10.
  • the cleaning device 20 has a cleaning opening 22 which can be closed by means of a shut-off flap 21 or the like closure element.
  • Fig. 3a shows a first, relatively simple variant in which the cleaning device 20 as in cross section z. B. rectangular collecting container with the frontal cleaning opening 22 and the butterfly valve 21 or lid is formed. The sucked material can after opening or removing the flap 21 and the lid z. B. be removed by hand.
  • FIG. 3b shows a second embodiment in which the cleaning device 20 has a arranged in the suction box 14 conveyor 23, which is formed in the embodiment as a screw conveyor, with this screw 23 fibers from the cleaning box 14 can be transported through the cleaning opening.
  • the two cleaning screws 23 operate in an orthogonal to the transport direction T of the conveyor belt 10 screw direction.
  • the material can be removed either continuously or cyclically.
  • Cleaning opening and flap are not shown in Fig. 3b. If necessary, a flap can be dispensed with.
  • the two suction boxes 14 are arranged below the chute 6 in only one subregion which is designed as a suction region SB, so that in these suction boxes
  • a fiber template area FV is provided. This means that in a portion of the screen belt 10 below the
  • a control device not shown, is provided with which the suction device 11 can be controlled as a function of the contamination of the conveyor belt 10.
  • the conveyor belt 10 is guided as an endlessly circulating conveyor belt over Umlenkaggregate 24, wherein a conveyor belt cleaning device 25 is arranged in the region of the conveyor belt return.
  • this conveyor belt cleaning device 25 has a mechanical cleaning, namely a brush cleaning 25a and, on the other hand, a wet cleaning 25b.
  • These cleaning devices 25, 25a, b are operated depending on the degree of contamination and thus controlled.
  • FIG. 4 shows an embodiment of the invention, in which two gluing machines and consequently two chutes 6 are arranged side by side. These are only indicated in the sketch.
  • the conveying air F and the jacket air M are fed via a hot gas supply 26, wherein z. B. flue gases can be used, which are plantregelt with cooling air K.
  • the incoming hot gases H may have a temperature of 270 0 C. From this Mantel Kunststoff M and conveying air F with a temperature of z. B. 90 0 C generated. Furthermore, it can be seen that as much as false air heated room air or ambient air U with a temperature of z. B. 15 0 C to 25 0 C can be supplied.
  • a predetermined volume flow of the conveying air F and a predetermined volume flow of the jacket air M are preselected and then set or controlled and / or regulated via the Absaugvolumenstrom the suction air S, the volume flow of the ambient air.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Paper (AREA)

Abstract

L'invention concerne une installation utilisée pour encoller des fibres pour la production de panneaux de fibres, notamment de panneaux MDF ou de panneaux dérivés du bois similaires. Ladite installation comprend un dispositif pour acheminer les fibres, muni d'au moins une conduite d'amenée de fibres qui peut être soumise à l'action d'air de refoulement pour assurer le transport des fibres et débouche dans un tuyau de sortie de fibres, par le biais d'un parcours modifié, en courbe, des fibres, une trémie par gravité montée en aval du tuyau de sortie de fibres, une encolleuse munie de buses de pulvérisation pour pulvériser les fibres qui sortent du tuyau de sortie de fibres et les fibres qui entrent dans la trémie par gravité avec des gouttes de colle, ainsi qu'un dispositif collecteur monté en aval de la trémie par gravité, qui est muni d'une bande transporteuse perméable à l'air et sert à recueillir et éventuellement à évacuer les fibres, de même qu'un dispositif d'aspiration pour aspirer l'air sortant de la trémie à travers la bande transporteuse. Ledit dispositif d'aspiration présente une ou plusieurs caisses aspirantes auxquelles sont raccordées une ou plusieurs conduites d'aspiration. Cette installation se caractérise en ce que les caisses aspirantes sont conçues sous forme de caisses de nettoyage avec au moins un dispositif de nettoyage pour éliminer des fibres qui entrent dans les caisses aspirantes, en passant à travers la bande transporteuse.
EP07819381.0A 2006-12-13 2007-10-27 Installation et méthode pour encoller des fibres pour la production de panneaux de fibres Active EP2101969B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07819381T PL2101969T3 (pl) 2006-12-13 2007-10-27 Instalacja i sposób powlekania klejem włókien do wytwarzania płyt pilśniowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006058627A DE102006058627B3 (de) 2006-12-13 2006-12-13 Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten
PCT/EP2007/009338 WO2008071259A1 (fr) 2006-12-13 2007-10-27 Installation pour encoller des fibres pour la production de panneaux de fibres

Publications (2)

Publication Number Publication Date
EP2101969A1 true EP2101969A1 (fr) 2009-09-23
EP2101969B1 EP2101969B1 (fr) 2015-09-02

Family

ID=39033743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07819381.0A Active EP2101969B1 (fr) 2006-12-13 2007-10-27 Installation et méthode pour encoller des fibres pour la production de panneaux de fibres

Country Status (7)

Country Link
US (1) US8444407B2 (fr)
EP (1) EP2101969B1 (fr)
CN (1) CN101466512B (fr)
CA (1) CA2669624C (fr)
DE (1) DE102006058627B3 (fr)
PL (1) PL2101969T3 (fr)
WO (1) WO2008071259A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009042362A1 (de) 2009-09-23 2011-04-21 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Verfahren zur Herstellung von Kartonplatten bzw. Kartonplattensträngen aus Altpapier
DE102009042361B4 (de) 2009-09-23 2012-12-20 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Verfahren zur Herstellung von kartonähnlichen Faserplatten aus Holzfasern
DE102009054148B8 (de) * 2009-11-23 2012-09-27 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Trocknung und Sichtung von trocken beleimten Fasern
ITMO20110103A1 (it) * 2011-05-06 2012-11-07 Imal Srl Dispositivo e metodo per l'iniezione di un fluido all'interno di un flusso di materiale incoerente.
DE102012111307A1 (de) * 2012-11-22 2014-05-22 Dieffenbacher GmbH Maschinen- und Anlagenbau Fallschachtanordnung mit zweifacher Reinigungseinrichtung, insbesondere für eine Vorrichtung zur Beleimung von Partikeln im Zuge der Herstellung von Werkstoffplatten
WO2020192852A1 (fr) * 2019-03-25 2020-10-01 Gea Process Engineering A/S Appareil de séchage par pulvérisation doté de plénum en dessous d'un fond perforé d'une chambre de séchage par pulvérisation

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US6902125B2 (en) 2000-05-24 2005-06-07 Fritz Schneider Process and device for disintegrating irregularities in flows of wood fibres
CN100377854C (zh) * 2000-08-11 2008-04-02 刨花板有限公司 胶粘指定用于制造纤维板的干燥纤维的方法和装置
DK174460B1 (da) * 2002-02-08 2003-03-31 Dan Web Holding As Fremgangsmåde til renholdelse af et binder/lim-påføringsapparat, samt et binder/lim-påføringsapparat
JP4261130B2 (ja) * 2002-06-18 2009-04-30 株式会社東芝 シリコン／炭化ケイ素複合材料
DE10247414B4 (de) * 2002-10-11 2009-04-02 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten o. dgl. Holzwerkstoffplatten
DE10247412C5 (de) 2002-10-11 2010-07-01 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten und dergleichen Holzwerkstoffplatten
DE10247413B4 (de) * 2002-10-11 2009-05-07 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten oder dergleichen Holzwerkstoffplatten
DE102004001527B4 (de) * 2004-01-10 2006-02-16 Büttner Gesellschaft für Trocknungs- und Umwelttechnik mbH Anlage und Verfahren zum Beleimen von Fasern für die Herstellung von Faserplatten, insbesondere MDF-Platten u. dgl. Holzwerkstoffplatten

Non-Patent Citations (1)

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Title
See references of WO2008071259A1 *

Also Published As

Publication number Publication date
WO2008071259A1 (fr) 2008-06-19
PL2101969T3 (pl) 2016-04-29
CA2669624A1 (fr) 2008-06-19
CN101466512A (zh) 2009-06-24
US20120138233A1 (en) 2012-06-07
CN101466512B (zh) 2012-11-21
CA2669624C (fr) 2014-11-25
DE102006058627B3 (de) 2008-06-05
US8444407B2 (en) 2013-05-21
EP2101969B1 (fr) 2015-09-02

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