EP2994278B1 - Procédé et dispositif d'encollage de particules, de préférence lors de la fabrication de panneaux - Google Patents

Procédé et dispositif d'encollage de particules, de préférence lors de la fabrication de panneaux Download PDF

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Publication number
EP2994278B1
EP2994278B1 EP14726089.7A EP14726089A EP2994278B1 EP 2994278 B1 EP2994278 B1 EP 2994278B1 EP 14726089 A EP14726089 A EP 14726089A EP 2994278 B1 EP2994278 B1 EP 2994278B1
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EP
European Patent Office
Prior art keywords
plates
cleaning
nozzles
particles
drop shaft
Prior art date
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Application number
EP14726089.7A
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German (de)
English (en)
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EP2994278A1 (fr
Inventor
Detlef Kroll
Gernot Von Haas
Reinhard Schwinn
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.)
Dieffenbacher GmbH Maschinen und Anlagenbau
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Dieffenbacher GmbH Maschinen und Anlagenbau
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    • 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

Definitions

  • the invention relates to a method for the gluing of particles which consist at least partially of suitable for the production of material plates fibers and / or chips, according to the preamble of claim 1 and to a device for gluing of particles, at least partially for the production of Material plates suitable fibers and / or chips consist, according to the preamble of claim. 6
  • binder is understood to mean a so-called adhesive liquor which consists of an adhesive in its main component. Depending on your needs its main component consists of an adhesive. Depending on requirements, in addition emulsion, hardener, formaldehyde scavengers, dyes, insect repellent and antifungal agents and other additives are added. It is also common to use the adhesive without additives.
  • binders without any claim to completeness: isocyanates, MDI, melamine urea formaldehyde (MUF), urea formaldehyde (UF), MUPF or PF.
  • isocyanates MDI, melamine urea formaldehyde (MUF), urea formaldehyde (UF), MUPF or PF.
  • Basically underlying state of the art is the gluing of chips or fibers by means of spray nozzles in production facilities for chipboard or fiberboard. The nozzles shred the binder and spray it on moving chips or fibers. Fall chute gluing can save 20% glue, for example in chipboard production.
  • caking may occur in the swirl region of the spray nozzles. The caking leads to a higher glue consumption and can damage subsequent parts of the system when dropped.
  • the particles are metered for metering with a metering device, dissolved with a dissolving device and glued with a at least partially consisting of sheets vertical chute with a binder and preferably then mixed in a substantially horizontal mixing device.
  • the object of the invention is to provide a method and a device with which the gluing within a chute before a mixing device can be optimized to achieve better gluing results and / or savings in the amount of necessary binder and / or clumping and caking avoid the inner walls of the chute.
  • the device is to be regarded as stand-alone, but can also be used to carry out the method.
  • a particle stream discharged from a metering device is then dissolved by means of a dissolving device, which at high throughputs, an optimal production of a gluable particle curtain can perform, which improves the total Beleimlinger.
  • At least one, preferably two counter-rotating, rotatably driven spiked roller can be arranged as the opening device.
  • the arrangement of two-substance nozzles as nozzles for gluing would also be advantageous, in particular if the binder is atomised or comminuted with steam, in particular atomized.
  • the spiked roller is at least partially enclosed by a guide plate and the particles are guided and separated by the spiked roller and / or by a pneumatic air flow generated by the spiked roller through a guide gap formed from the guide plate and the spiked roller.
  • a funnel reducing in cross section in the direction of the fall from top to bottom is arranged as the chute.
  • a scraping device for cleaning the inner walls of the chute can be arranged at least in the second chute section of the chute. It would also be conceivable that for cleaning the inner walls of the chute, a doctor blade moves on the inner walls and / or rotated and / or at least the fitting to a doctor blade part of the chute is rotated about its axis lying parallel to the direction of fall.
  • the invention further understands the following terms.
  • the dissolution and / or the distribution of the particles in the chute is essentially carried out by a dissolving device, each of which is capable of forming a particle curtain before the gluing of the particles or the particle curtain is carried out.
  • the term "particle curtain" is understood to mean the formation of a targeted particle stream for gluing by a dissolving device.
  • the nozzles are suitable to dissolve supplied binder and deliver with higher than the ambient pressure in the chute in the direction of a particle curtain.
  • the particles are preferably suitable for the production of material plates suitable fibers and / or chips, in addition to these usually lignocellulose and / or cellulosic materials or their substitutes also plastics, glass fibers, or the like could be used.
  • FIG. 1 is a schematic view of a device for gluing of particles 1 starting with the metering device 11 and ending with a mixing device 10 and an interposed chute 4 is shown in a simplified representation.
  • the particles 1 are in this case in the metering device 11, usually from a particle bunker by means of discharge, registered, weighed there (schematic weighing device below the upper endless circulating conveyor belt) and a standard band control (not shown) spent for dosing in the chute 4.
  • the particle stream 12 or the particles 1 impinges on a dissolving device 3.
  • the dissolution or division may also include the formation of a plurality of particle curtains 5.
  • the opening device preferably comprises at least one spiked roller 8, which generates the particle curtain 5 in the direction of fall 13 due to its rapid rotation.
  • the particle curtain 5 is sprayed in the direction of fall by means of suitable nozzles 14 with a binder 6 and glued.
  • the mixing device 10 in which by means of a shaft 16 by a rotating shaft 16 mixing tools 17, the glued particles 1 again mechanically mix and finally as output mixed particle stream 15.
  • the particle stream 15 is then stored in a dosing hopper or directly into a spreader to form a grit mat, which in the further course pressed in a press to a material plate and / or cured, introduced.
  • the lower part of the chute 4 can be arranged in the direction of fall 13 from top to bottom in cross-section reducing funnel.
  • the upper part of the chute 4 usually has an opening funnel or cone, so that the particle curtain 5 can spread and can be optimally sprayed from the nozzles 14 with binder.
  • the inner walls of the chute 4 tend to caking of the binder 6 and glued particles 1. It is known to provide a cleaning device in the lower part of the chute 4 to the transition to the mixing device or other downstream devices, in the sense of scrapers or movable ropes can clean the inner surfaces of the walls. But as also shown, the possibly more complex structure of the chute from the dissolving device 3 to the nozzles 14 also tends to caking, but can usually only or hardly clean. For this reason, at least partially sheets 2 of the chute 4, preferably those which form inner walls, pivotally arranged in the chute 4.
  • a sheet metal 2 is pivoted between the nozzles 14 and the opening device 3 by means of an adjusting device 18, so that it is at least partially turned on the particle flow 5 or even placed in the particle flow 5.
  • a first position of the sheets 2, the operating position, and a second position of the sheets 2, the cleaning position since in the second position of the passing past the sheets of particle stream 5, the surface of the particles 5 to the inclined sides of the sheets 2 cleans.
  • at least one cleaning nozzle 7, preferably a cleaning bar with nozzles can be attached to the sheets 2, which can carry out cleaning of the binders 6 spraying nozzles 14 in an intermediate position between the first and the second position of the sheets 2. It may also be sufficient that this intermediate position only taken in passing becomes when the cleaning effect of the cleaning nozzles 7 is sufficient.
  • the sheets 2 are cooled to reduce the adhesion of the binder 6. 1459

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (10)

  1. Procédé pour encoller des particules (1) qui sont constituées au moins en partie de fibres et/ou de copeaux appropriés à la fabrication de panneaux de matériau, dans lequel, pour l'encollage, les particules (1) sont dosées avec un dispositif de dosage (11), désagrégées avec un dispositif de désagrégation (3) et encollées avec un agent liant (6) dans une trémie verticale (4) constituée au moins partiellement de tôles (2) et de préférence ensuite mélangées dans un dispositif de mélange sensiblement horizontal (10), dans lequel au moins des parties des tôles (2) formant les parois de la trémie (4) sont pivotées d'une première position de fonctionnement dans une deuxième position de nettoyage, caractérisé en ce que, dans la deuxième position de nettoyage, des moyens de nettoyage, tels que des buses de nettoyage (7), sont libérés, qui nettoient des parties des tôles (2) et/ou des buses de pulvérisation (14) de l'agent liant (6), et/ou, dans la deuxième position de nettoyage, le flux de particules (5) de particules (1) est dévié par les tôles (2) de telle sorte qu'il nettoie d'autres tôles (2) ou parties de la trémie.
  2. Procédé selon la revendication 1, caractérisé en ce que, dans la deuxième position de nettoyage, les tôles (2) sont nettoyées par les particules (1) s'écoulant dans la direction de chute (13).
  3. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que les moyens de nettoyage comprennent des brosses ou des buses de nettoyage (7) qui nettoient les buses de pulvérisation (14) de préférence mécaniquement, pneumatiquement ou chimiquement.
  4. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que les tôles (2) sont pivotées de la position de fonctionnement dans la position de nettoyage selon un cycle en minutes prédéfini, de préférence toutes les 5 minutes.
  5. Procédé selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que les tôles (2) sont refroidies, de préférence à une température inférieure à 30 C.
  6. Dispositif pour encoller des particules (1) qui sont constituées au moins partiellement de fibres et/ou de copeaux appropriés à la fabrication de panneaux de matériau, comprenant un dispositif de dosage (11) pour doser les particules (1), une trémie (4) sensiblement verticale, un dispositif de désagrégation (3) disposé entre les deux et de préférence un dispositif de mélange (10) disposé sensiblement horizontalement en aval de la trémie (4), dans lequel des tôles pivotantes (2) sont disposées au moins en tant que parties de la trémie (4), qui peuvent pivoter d'une première position de fonctionnement dans une deuxième position de nettoyage au moyen d'au moins un dispositif de positionnement (18), caractérisé en ce que, dans la deuxième position de nettoyage, des moyens de nettoyage, tels que des buses de nettoyage (7), sont libérés, qui nettoient des parties des tôles (2) et/ou des buses de pulvérisation (14) de l'agent liant (6), et/ou les tôles (2) sont disposées de telle sorte qu'elles peuvent pivoter dans la position de nettoyage pour dévier le flux de particules (5) sortant du dispositif de désagrégation (3) afin de nettoyer d'autres zones de la trémie (4).
  7. Dispositif selon la revendication 6, caractérisé en ce que des moyens de nettoyage, de préférence des brosses ou des buses de nettoyage (7), sont disposés sur les tôles (2), qui sont en particulier appropriés à nettoyer les buses de pulvérisation (14) de l'agent liant (6).
  8. Dispositif selon l'une ou plusieurs des revendications 6 à 7, caractérisé en ce qu'un dispositif de refroidissement (9) est disposé sur les tôles (2), de préférence sur les tôles pivotantes (2).
  9. Dispositif selon l'une ou plusieurs des revendications 6 à 8, caractérisé en ce que les tôles pivotantes (2) sont disposées entre le dispositif de désagrégation (3) et les buses de pulvérisation (14) de l'agent liant (6).
  10. Dispositif selon l'une ou plusieurs des revendications 6 à 9, caractérisé en ce que le dispositif est utilisé pour mettre en oeuvre le procédé selon l'une des revendications 1 à 5.
EP14726089.7A 2013-05-06 2014-05-06 Procédé et dispositif d'encollage de particules, de préférence lors de la fabrication de panneaux Active EP2994278B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310104653 DE102013104653A1 (de) 2013-05-06 2013-05-06 Verfahren und Vorrichtung zur Beleimung von Partikeln, bevorzugt im Zuge der Herstellung von Werkstoffplatten
PCT/EP2014/059271 WO2014180868A1 (fr) 2013-05-06 2014-05-06 Procédé et dispositif d'encollage de particules, de préférence lors de la fabrication de panneaux

Publications (2)

Publication Number Publication Date
EP2994278A1 EP2994278A1 (fr) 2016-03-16
EP2994278B1 true EP2994278B1 (fr) 2018-12-12

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EP (1) EP2994278B1 (fr)
CN (1) CN105209226B (fr)
DE (1) DE102013104653A1 (fr)
WO (1) WO2014180868A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015100667A1 (de) 2015-01-19 2016-08-04 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung und Verfahren zur Konditionierung von Leim
DE202015100210U1 (de) 2015-01-19 2016-03-23 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung zur Konditionierung von Leim
DE102015107373A1 (de) * 2015-05-11 2016-11-17 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zum Streuen eines Vlieses im Zuge der Herstellung von Werkstoffplatten und eine Werkstoffplatte
CN110923951A (zh) * 2019-12-24 2020-03-27 陈凯 一种防火密度板生产用混合喷胶装置
CN111015880A (zh) * 2019-12-24 2020-04-17 山东省林业科学研究院 一种大片刨花施胶阻燃装置
CN113352424B (zh) * 2021-06-02 2022-09-09 江苏中装建设有限公司 一种建筑用板材混胶预处理方法
DE102021004703A1 (de) 2021-09-17 2023-03-23 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung und Verfahren zur Vermischung von Partikeln mit einem Benetzungsmittel

Citations (1)

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DE102010064339A1 (de) * 2010-12-29 2012-07-05 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Benetzung von Streugut insbesondere von Fasern und/oder Spänen, mit einem Fluid

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BE545282A (fr) * 1955-02-17
CH597926A5 (fr) * 1976-11-26 1978-04-14 Fahrni Peter
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
DE20317633U1 (de) * 2003-11-14 2004-02-12 Binos Technologies Gmbh & Co. Kg Vorrichtung zur Trockenbeleimung von Teilchen in Form von Fasern und Spänen
DE102006058625B3 (de) * 2006-12-13 2008-06-05 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Anlage zum Beleimen von Fasern für die Herstellung von Faserplatten
ITVR20080062A1 (it) * 2008-05-26 2009-11-27 Moretto Spa Struttura di tramoggia
IT1399772B1 (it) * 2010-04-30 2013-05-03 Imal Srl Apparato per l'iniezione di componenti chimici in un flusso di materiale legnoso incoerente
DE102011077514A1 (de) * 2011-06-14 2012-12-20 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Beleimung von Partikeln, die aus zur Herstellung von Werkstoffplatten geeigneten Fasern und/oder Spänen bestehen
DE202013101974U1 (de) * 2013-05-06 2014-07-09 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung zur Beleimung von Partikeln, bevorzugt im Zuge der Herstellung von Werkstoffplatten

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE102010064339A1 (de) * 2010-12-29 2012-07-05 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zur Benetzung von Streugut insbesondere von Fasern und/oder Spänen, mit einem Fluid

Also Published As

Publication number Publication date
DE102013104653A1 (de) 2014-11-06
EP2994278A1 (fr) 2016-03-16
WO2014180868A1 (fr) 2014-11-13
CN105209226B (zh) 2019-04-23
CN105209226A (zh) 2015-12-30

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