EP3470191B1 - Procédé et dispositif destinés à la fabrication d'une plaque en matériau dérivé du bois - Google Patents

Procédé et dispositif destinés à la fabrication d'une plaque en matériau dérivé du bois Download PDF

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Publication number
EP3470191B1
EP3470191B1 EP17196573.4A EP17196573A EP3470191B1 EP 3470191 B1 EP3470191 B1 EP 3470191B1 EP 17196573 A EP17196573 A EP 17196573A EP 3470191 B1 EP3470191 B1 EP 3470191B1
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EP
European Patent Office
Prior art keywords
wood
adhesive
fact
wood particles
particulate cake
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.)
Active
Application number
EP17196573.4A
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German (de)
English (en)
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EP3470191A1 (fr
Inventor
Norbert Kalwa
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.)
Swiss Krono Tec AG
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Swiss Krono Tec AG
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
Priority to EP17196573.4A priority Critical patent/EP3470191B1/fr
Application filed by Swiss Krono Tec AG filed Critical Swiss Krono Tec AG
Priority to PL17196573T priority patent/PL3470191T3/pl
Priority to PT171965734T priority patent/PT3470191T/pt
Priority to ES17196573T priority patent/ES2779858T3/es
Priority to PCT/EP2018/075027 priority patent/WO2019076556A1/fr
Priority to AU2018353291A priority patent/AU2018353291A1/en
Priority to JP2020512804A priority patent/JP2020536763A/ja
Priority to CN201880067193.9A priority patent/CN111225778B/zh
Priority to RU2020111586A priority patent/RU2778083C2/ru
Priority to US16/640,848 priority patent/US20210268685A1/en
Publication of EP3470191A1 publication Critical patent/EP3470191A1/fr
Application granted granted Critical
Publication of EP3470191B1 publication Critical patent/EP3470191B1/fr
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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
    • 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
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres
    • B27N3/146—Controlling mat weight distribution
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • 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
    • B27N1/006—Pretreatment of moulding material for increasing resistance to swelling by humidity
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/005—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and foam
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • 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
    • B27N9/00—Arrangements for fireproofing

Definitions

  • the invention relates to a method for producing a wood-based board, the method comprising the following steps: (a) scattering a plurality of wood particles into a particle cake, (b) applying adhesive to at least some of the wood particles during the spreading and / or before spreading, (c) pressing the particle cake under increased pressure and temperature.
  • the invention also relates to a device for performing such a method.
  • Wood-based panels are used in a wide variety of technological areas. For example, they are used for floors, wall coverings, furniture or in structural timber construction.
  • Wood-based materials and in particular wood-based panels, have a core made of wood particles and mostly some adhesive.
  • wooden beaches, wood chips and wood fibers are used as wood particles. They are usually pressed in a continuous or in a clocked process under the action of heat and pressure, the so-called hot pressing, to form plates or at least to the core thereof.
  • wood-based panels Due to their diverse areas of application, wood-based panels have to withstand and cope with a wide variety of loads and strains. This applies, for example, to point loads or area loads, for example when the panels are used as furniture panels, doors or floor elements.
  • Wood-based panels are usually manufactured in such a way that they have uniform and as constant properties as possible over the entire size of the panel, such as such as bulk density or strength against impact loads or deflections.
  • the bulk density is the ratio between mass and volume of the wood-based panel and is, among other things, a parameter for the strength of a wood-based panel. In general, the higher the bulk density, the greater the strength of a wood-based panel.
  • Today's wood-based panels have, for example, a bulk density of 620 kg / m 3 to 650 kg / m 3 for chipboard, 600 kg / m 3 to 650 kg / m 3 for OSB and 700 kg / m 3 for MDF.
  • Wood-based panels have to withstand very different loads depending on the intended use. When used as a furniture panel or door leaf, for example, these loads are not constant over the entire surface of the wood-based panel. In the area of hinges, a door leaf must withstand significantly higher loads than in the remaining area of the door leaf. The same applies to cabinet doors or shelves, where very high loads are to be expected, especially in the area of the small contact surfaces.
  • the bulk density can be made lower in areas which are not heavily loaded, which leads to a lower panel weight and material savings.
  • a method is known from, for example EP 2 653 279 A1 known in which particles are removed from a falling particle curtain.
  • the WO 2005/046950 A1 describes a method and a corresponding device with which fewer particles are used in certain areas of the wood-based panel in order to reduce the bulk density in these areas.
  • there are limits to the reduction of the scattered particles in one area since a sufficient amount of particles is required in order not to produce a depression or dent in the wood-based panel to be produced.
  • a device for applying a liquid as uniformly as possible to a fiber cake is known, the liquid being, for example, a synthetic resin.
  • the EP 2 487 016 A1 describes a device through which a liquid, for example water, can be introduced into a fiber cake.
  • the invention achieves the object by a method according to the preamble of claim 1, which is characterized in that an amount of adhesive which is applied to the wood particles is varied as a function of their expected position in the particle cake by means of an electrical control.
  • the amount of adhesive can be reduced on the one hand, which, for example, reduces the emission of volatile adhesive components, and on the other hand the bulk density in these areas can be further reduced without the scattered amount of particles having to be reduced.
  • the amount of adhesive applied varies depending on the expected position of the particles to be glued. It can therefore vary along the thickness of the wood-based panel and / or in a plane parallel to the surface of the wood-based panel.
  • the wood particles are preferably provided with an adhesive only when scattered.
  • the particles leave a scattering device or a conveying device and are glued in the fall by spraying the adhesive onto the falling particles through at least one glue nozzle.
  • the amount of adhesive applied is varied depending on the position to be expected within the particle cake. In the course of the production process of such a particle cake, the amount of adhesive dispensed through the at least one glue nozzle therefore also varies. This can can be achieved by changing the application rate of at least one nozzle and / or by changing the number of spraying nozzles.
  • wood particles are particularly preferably pre-glued with a preferably constant amount of adhesive prior to scattering.
  • the pre-glued wood particles are then sprinkled into a particle cake.
  • additional adhesive is then applied in varying amounts to all or only a few wood particles.
  • the pre-glued and / or non-glued wood particles are guided past the at least one gluing nozzle, for example in an air stream, which, for example, program-controlledly apply different amounts of adhesive.
  • the adhesives used are in particular urea-formaldehyde resins, melamine or phenolic resins. They are preferably isocyanates, such as polymeric diphenylmethane diisocyanate (PMDI), which is in particular free of formaldehyde.
  • PMDI polymeric diphenylmethane diisocyanate
  • the method preferably comprises introducing one or more additives into the particle cake during the scattering.
  • additives can influence other properties of the wood-based panel in particular.
  • additives include, in particular, fire-retardant substances, biocidal substances, substances to compensate for the swelling of wood, substances that influence the visual and / or tactile appearance of the subsequent wood-based panel, substances that change the thermal conductivity or electrical conductivity, as well as foaming agents and substances that have already been foamed.
  • the at least one additive preferably contains at least one filler, such as chalk, talc, quartz powder, glass beads, expanded glass or expanded clay, at least one optical brightener, such as titanium dioxide, calcium carbonate or fluorescent organic substances, at least one fire-retardant substance, at least one biocidal substance, at least one substance for swelling of wood, at least one frother and / or at least one material that changes an optical and / or haptic and / or a physical property of the wood-based panel, for example its thermal conductivity.
  • at least one filler such as chalk, talc, quartz powder, glass beads, expanded glass or expanded clay
  • at least one optical brightener such as titanium dioxide, calcium carbonate or fluorescent organic substances
  • at least one fire-retardant substance such as titanium dioxide, calcium carbonate or fluorescent organic substances
  • at least one biocidal substance such as calcium carbonate or fluorescent organic substances
  • at least one substance for swelling of wood at least one frother and / or at least one material that changes an optical and / or haptic and
  • the additives can moreover be primers, for example based on silanes or other adhesion promoters. These improve in particular the adhesion of different glue systems or different layers to one another.
  • substances can also be applied which form an intermediate layer and thus avoid mixing of individual other layers. In the case of chipboard, for example, it can be prevented or made more difficult for particles of relatively thin outer layers to migrate into a coarser middle layer.
  • energy can also be introduced, for example in the form of heat or radiation energy.
  • adhesive reactions of multi-component adhesives or reactions of or with additives can be specifically triggered or influenced. It is also possible to introduce moisture into the particle cake, for example by treatment with steam.
  • Different amounts of additives are preferably introduced at different positions within the particle cake. In this way, the influenced properties can be trained in different areas or trained or varied to different degrees. Different additives and / or different amounts of different additives are preferably introduced at different positions within the particle cake.
  • the one or more additives are introduced in particular via separate introduction devices, such as, for example, nozzles. In particular, this not only happens during spreading, but can also happen when no wooden particles are scattered.
  • At least one additive is preferably a further adhesive or an adhesive component.
  • the application of an adhesive also includes the application of an or understood several adhesive components, this can be done in a varying amount or other adhesive components can be applied in a varying amount.
  • An amount of wood particles which are scattered to the particle cake is preferably varied as a function of their expected position in the particle cake. This makes it possible, in particular, to have a further influence on the bulk density within the particle cake and thus in particular on the strength by selecting different large scattered quantities of wood particles.
  • the invention also achieves the object by a device according to claim 8 for carrying out a method described here, which has an electrical control which is set up to vary an amount of adhesive to be applied to the wood particles as a function of their expected position in the particle cake.
  • the electrical control preferably has an electronic data processing device which is set up to access information stored in an electronic data memory and to vary the amount of adhesive to be applied on the basis of this information. This can be done by controlling an amount of adhesive supplied to the at least one nozzle and / or by opening and closing nozzles.
  • the device preferably has at least one glue nozzle, particularly preferably a plurality of glue nozzles.
  • the at least one glue nozzle is preferably movable, in particular transverse to a transport direction of a conveyor belt on which the wood particles are scattered.
  • the expected position of the wood particles is determined or can be determined on the basis of a position of the scattering nozzle scattering the wood particles. This is irrespective of whether such a scattering nozzle is designed to be movable or immovable relative to the particle cake. Whether the adhesive is applied to the wood particles before spreading or only during spreading depends on the type of adhesive. at It is advantageous, for example, to apply adhesives with a particularly short drip time only during the spreading.
  • the expected positions of the wood particles in the particle cake can be determined or calculated during the scattering.
  • a measuring device is arranged on the device, for example. This can be a high-speed camera or the like, for example. In this case it is advantageous if the adhesive is applied during the spreading.
  • the device preferably has a conveyor belt which can be moved in a transport direction, the at least one scattering nozzle being arranged above the conveyor belt and being designed to scatter the wood particles onto the conveyor belt.
  • the advantage of such a conveyor belt is in particular that the wood-based panels or the particle cake can be manufactured continuously.
  • the expected position of the wood particles in the particle cake is preferably calculated on the basis of the position of the corresponding scatter nozzle, in particular with respect to the particle cake to be scattered, which sprinkles the wood particles.
  • a transport speed of the conveyor belt is preferably included.
  • the at least one glue nozzle is preferably arranged above the conveyor belt and set up to apply adhesive to the wood particles during the spreading.
  • one, in particular several, of the glueing nozzles are preferably arranged in a gluing head, so that this gluing head, in particular, can be moved as a whole without the orientation or position of the gluing nozzles and the scattering nozzles changing relative to one another.
  • a number of scattering nozzles and / or a number of glueing nozzles are preferably arranged transversely to the transport direction. In particular, are arranged over the entire width of the particle cake or over the entire width of the conveyor belt. This is advantageous because wood particles and / or adhesive can be applied at variable intervals.
  • a plurality of glue nozzles preferably form a glue strip. It is also possible that at least two such gluing strips are combined to form a gluing head. It is further preferred that at least one gluing strip with at least one scattering nozzle, in particular at least one scattering strip made up of several scattering nozzles, is combined to form a scattering gluing head, of which the device preferably has a plurality.
  • movable glue nozzles In particular when using movable glue nozzles, existing devices can be retrofitted and benefit from the advantages of the present invention.
  • the movability makes it possible, for example, to adapt the production device to different wood-based panels to be produced without much additional effort.
  • the electrical control is preferably set up to vary the amount of wood particles as a function of their expected position in the particle cake.
  • a urea-formaldehyde glue is used as the adhesive.
  • a lower covering layer of wood particles is first scattered onto a conveyor belt by means of wind scattering.
  • a thin layer of foamed urea-formaldehyde glue (20 g fl / m 2 , solids content approx. 50%) is then applied using a series of glue nozzles.
  • a middle layer is then applied with a spreading scatter.
  • An equal amount of foamed resin is applied to this again with glue nozzles.
  • An upper cover layer is applied to this by means of wind scattering.
  • the ratio between top layer and middle layer is approximately 28 to 72%.
  • the resulting particle cake in the form of a chip cake is pressed into a chipboard in a Contipress, then cooled and ground.
  • MUF glue melamine-urea.formaldehyde glue in the top layer and PMDI glue in the middle layer are used.
  • the ratio between top layer and middle layer is about 30 70%.
  • glued cover layer beaches are sprinkled on a conveyor belt.
  • a bar made of application devices nozzle application
  • a polyethylene glycol molecular weight: 200 g / mol
  • the middle class is spread over it.
  • the same amount of polyethylene glycol is again applied to the scattered middle layer using nozzles. This is followed by the scattering of the second top layer.
  • the beach cake is then pressed in a contipress to the OSB.
  • an OSB was produced with the same glue systems without polyglycol application. After cooling, the plates were tested for their transverse tensile strength in the laboratory. It was found that the comparison sample did not tear in the middle but between the top and middle layers. In addition, the test values were approximately 20% lower.
  • Figure 1 is a perspective sectional view of a wood-based panel 2, as can be obtained according to an embodiment of the manufacturing method according to the invention.
  • a wood-based panel has an extension in the x, y and z directions.
  • the x direction is the expansion of the wood-based panel transversely to the longitudinal direction y.
  • the height or thickness of the wood-based panel extends in the z direction.
  • FIG. 1 areas 4.1 and 4.2 are described with different amounts of adhesive applied.
  • the areas 4.1 are areas with a larger amount of adhesive.
  • the areas 4.2 are areas with an amount of adhesive.
  • Figure 2 describes schematically the manufacturing process of a wood-based panel, in particular a wood fiber board.
  • wood 10 is first made available. This is preferably forest wood or residual wood, which in particular has been debarked beforehand. This is processed into wood chips in a comminution device 12, for example a disc or drum chipper. These chips are fed to a cooker 14. In this, the wood chips are prepared and cleaned under the influence of superheated steam, if necessary with the wood chips being preheated. For example, the wood chips are digested at a temperature of approx. 170 ° for about 3-4 minutes.
  • the digestion in the cooker 14 is followed by a fiber digestion of the wood chips in the refiner 16, particularly if it is a wood fiber board.
  • the wood chips are ground, for example in a disc, cylinder or cone mill and so processed into wood fibers.
  • the wood fibers which are in particular still moist, are pre-glued with an adhesive such as urea formaldehyde resin (UF resins) in a pre-gluing device.
  • the wood fibers are preferably separated, before or after, for the later spreading heads, via which they are spread in a spreading device 24 in the later step. This has the advantage that the amount of adhesive which can later be applied by means of the glueing nozzles, which can also be zero, can be adjusted particularly easily depending on an expected position of the wood fiber.
  • the glued wood fibers are then dried in a dryer 20, for example by means of hot gas, which has, for example, a temperature of about 160 °, to a certain residual moisture of, for example, 10-15%.
  • a sifting in a sifter 22 follows the drying step.
  • the fibers are separated, for example on the basis of their particle size or fiber length, their mass or their inertia. This takes place, for example, in a gas flow in a so-called air classifier.
  • Fiber sizes that are unsuitable for further processing can be sorted out. Fibers that are too large can in particular be returned to the shredding process, fibers that are too small or pulverized wood particles can be removed from the further process. Alternatively, it is also possible for the sifting to be carried out before the wood fibers are glued.
  • the wood fibers are fed to the scattering device 24, which in particular has a plurality, for example at least three, gluing heads 26 with gluing nozzles, not shown.
  • the spreading device 24 preferably has a conveyor belt which can be moved in a transport direction.
  • the glueing nozzles of the gluing heads 26 are in particular arranged transversely to this transport direction. These glue nozzles preferably extend across the entire width of the conveyor belt transversely to the transport direction. These are particularly preferably pivotable in at least one, in particular in all spatial directions.
  • the gluing heads 26 are connected to an electrical control 28, which is set up to set an amount of adhesive to be applied to the wood particles as a function of their position in the particle cake, for example in a plane parallel to the longitudinal direction and the transverse direction.
  • a continuous and constant amount of wood particles is preferably scattered by each gluing head 26, this possibly differing between the individual gluing heads 26. It is also possible, for example, for a plurality of glue nozzles of a glueing head 26 spaced apart from one another transversely to the transport direction to emit larger amounts of adhesive per unit of time than other glueing nozzles of this glueing head 26.
  • the particle cake resulting from the scattering is precompressed in one or more precompression steps in a precompressor 30. This can be done continuously or discontinuously, for example, in several separate steps.
  • the pre-compressor is followed by a hot press 32, by means of which the wood-based panel 2 is formed from the pre-compressed particle cake under the action of temperature and pressure.
  • a hot press 32 by means of which the wood-based panel 2 is formed from the pre-compressed particle cake under the action of temperature and pressure.
  • HDF high-density
  • MDF medium-density
  • These large-format plates are further processed into a plurality of smaller plates, in particular by sawing in the transverse and / or longitudinal direction.

Claims (12)

  1. Procédé de fabrication d'un panneau à base de bois (2), le procédé comprenant les étapes suivantes consistant à :
    (a) disperser une multitude de particules de bois pour donner un gâteau de particules,
    (b) appliquer une colle sur quelques-unes au moins des particules de bois pendant la dispersion et/ou avant la dispersion,
    (c) presser le gâteau de particules à une pression accrue et à une température accrue,
    caractérisé en ce que
    une quantité de colle qui est appliquée sur les particules de bois est variée à l'aide d'une commande électrique en fonction de leur position à attendre dans le gâteau de particules.
  2. Procédé selon la revendication 1, caractérisé en ce qu'au moins un additif est introduit dans le gâteau de particules pendant la dispersion.
  3. Procédé selon la revendication 2, caractérisé en ce que différentes quantités d'additif sont introduites à différentes positions au sein du gâteau de particules.
  4. Procédé selon l'une des revendications 2 et 3, caractérisé en ce que ledit au moins un additif est une autre colle ou une composante de colle.
  5. Procédé selon la revendication 2, 3 ou 4, caractérisé en ce que ledit au moins un additif
    • comprend au moins une matière de charge, telle que de la craie, du talc, de la farine de quartz, des billes de verre, du verre expansé ou de l'argile expansée,
    • au moins un azurant optique, tel que du dioxyde de titane, du carbonate de calcium ou des substances organiques fluorescentes,
    • au moins une substance ignifuge,
    • au moins une substance biocide,
    • au moins une substance de réduction de dilatation du bois,
    • au moins un agent moussant et/ou
    • au moins une substance qui modifie une propriété optique et/ou haptique et/ou une propriété physique du panneau à base de bois, par exemple sa conductivité thermique.
  6. Procédé selon l'une des revendications 2 à 5, caractérisé en ce que différents additifs et/ou différentes quantités de différents additifs sont introduits à différentes positions au sein du gâteau de particules.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'une quantité de particules de bois qui sont dispersées pour donner le gâteau de particules varie en fonction de leur position à attendre dans le gâteau de particules.
  8. Dispositif pour mettre en œuvre un procédé selon l'une des revendications précédentes, comprenant une commande électrique conçue pour varier une quantité de colle à appliquer sur les particules de bois en fonction de leur position à attendre dans le gâteau de particules.
  9. Dispositif selon la revendication 8, caractérisé en ce que la commande électrique comprend un moyen de traitement de données électronique qui est conçu pour accéder à des informations mémorisées sur une mémoire de données électronique et pour varier la quantité de colle à appliquer, en se basant sur ces informations.
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce qu'il comprend au moins une buse d'encollage permettant d'appliquer la colle sur les particules de bois, la commande électrique étant conçue pour varier la quantité de colle susceptible d'être appliquée par ladite au moins une buse d'encollage.
  11. Dispositif selon la revendication 10, caractérisé en ce que ladite au moins une buse d'encollage est réalisée de façon mobile.
  12. Dispositif selon la revendication 11, caractérisé en ce que ladite au moins une buse d'encollage est mobile transversalement à une direction de transport d'une bande de transport sur laquelle les particules de bois sont dispersées.
EP17196573.4A 2017-10-16 2017-10-16 Procédé et dispositif destinés à la fabrication d'une plaque en matériau dérivé du bois Active EP3470191B1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
PL17196573T PL3470191T3 (pl) 2017-10-16 2017-10-16 Sposób i urządzenie do produkowania płyty drewnopochodnej
PT171965734T PT3470191T (pt) 2017-10-16 2017-10-16 Processo e dispositivo para produção de uma placa de derivados de madeira
ES17196573T ES2779858T3 (es) 2017-10-16 2017-10-16 Procedimiento y equipo para fabricar una placa de compuesto de madera
EP17196573.4A EP3470191B1 (fr) 2017-10-16 2017-10-16 Procédé et dispositif destinés à la fabrication d'une plaque en matériau dérivé du bois
AU2018353291A AU2018353291A1 (en) 2017-10-16 2018-09-17 Method and device for producing a composite wood board
JP2020512804A JP2020536763A (ja) 2017-10-16 2018-09-17 複合木材板を製造するための方法及び装置
PCT/EP2018/075027 WO2019076556A1 (fr) 2017-10-16 2018-09-17 Procédé et dispositif pour la fabrication d'un panneau dérivé du bois
CN201880067193.9A CN111225778B (zh) 2017-10-16 2018-09-17 用于制造木质复合材料板的方法以及装置
RU2020111586A RU2778083C2 (ru) 2017-10-16 2018-09-17 Способ и устройство для изготовления древесно-стужечной плиты
US16/640,848 US20210268685A1 (en) 2017-10-16 2018-09-17 Method and device for producing a composite wood board

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AU (1) AU2018353291A1 (fr)
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PL3470191T3 (pl) 2020-07-13
ES2779858T3 (es) 2020-08-20
CN111225778A (zh) 2020-06-02
CN111225778B (zh) 2023-03-31
US20210268685A1 (en) 2021-09-02
PT3470191T (pt) 2020-05-06
JP2020536763A (ja) 2020-12-17
AU2018353291A1 (en) 2020-03-12
RU2020111586A (ru) 2021-11-19
EP3470191A1 (fr) 2019-04-17
RU2020111586A3 (fr) 2022-01-18
WO2019076556A1 (fr) 2019-04-25

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