EP2476526B1 - Méthode et appareil pour la fabrication d'un aggloméré de fibres ou de copeaux - Google Patents

Méthode et appareil pour la fabrication d'un aggloméré de fibres ou de copeaux Download PDF

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Publication number
EP2476526B1
EP2476526B1 EP12155541.1A EP12155541A EP2476526B1 EP 2476526 B1 EP2476526 B1 EP 2476526B1 EP 12155541 A EP12155541 A EP 12155541A EP 2476526 B1 EP2476526 B1 EP 2476526B1
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EP
European Patent Office
Prior art keywords
fibers
chips
adhesive
glue
curtain
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.)
Expired - Lifetime
Application number
EP12155541.1A
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German (de)
English (en)
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EP2476526A1 (fr
Inventor
Josef Stutz
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.)
Lignum Technologies AG
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Kronoplus Technical AG
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Publication date
Application filed by Kronoplus Technical AG filed Critical Kronoplus Technical AG
Publication of EP2476526A1 publication Critical patent/EP2476526A1/fr
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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

Definitions

  • the invention relates to a manufacturing method according to claims 1 and 2 together with an associated device according to claim 1 for a made of fibers or chip plate.
  • the invention particularly relates to MDF or HDF or chipboard.
  • a typical, known production process for the production of a plate of the type mentioned is carried out as follows.
  • Cooked chips are first fed to a so-called refiner for the production of the fiber-made plate.
  • the wood chips are processed into fibers, with the application of temperature and pressure with the help of painting discs.
  • the fibers are transported out with the help of steam and forwarded by means of a line called "blow-line".
  • the vapor pressure is about 10 bar.
  • the temperature is about 150 to 160 °.
  • glue is added.
  • the "blow-line” expands. A turbulence is caused by the expansion.
  • the glue mixes with the fibers.
  • the proportion of glue in relation to the fibers is about 22% by weight.
  • the "blow-line" opens in the middle of a drying tube.
  • the drying tube has a diameter of e.g. 2.60 m up. Air is blown through the drying tube at a temperature of 160 ° C, maximum 220-240 ° C. In the drying tube, the moisture is reduced from 100% to 8 to 11%.
  • the glue is undesirably exposed to a temperature treatment. From about 80 ° glue is namely charged or activated disadvantageously. Activated glue is for the subsequent processing step in which the glued fibers are pressed to the plate, no longer usable.
  • gluing machine is already known to which wood fibers are added, where they are then stirred and mixed with adhesive.
  • the fibers are injected in a stream of air into a gluing tube, via which nozzles this inflowing and swirling air / fiber stream glue is added.
  • the object of the invention is to provide a plate with a lower proportion of glue compared to the prior art.
  • the object of the invention is achieved by a method having the features of the main claim and by a device for carrying out the method with the features of the independent claim.
  • the result is a plate with the features of the other independent claim.
  • the fibers or chips are first dried and then glue is mixed with the dried fibers or chips at temperatures which are substantially below the drying temperatures, in particular below 100 ° C. This avoids that the glue is undesirably exposed to the relatively hot temperatures that occur during drying.
  • the advantage is achieved that in the dryer or drying tube only water, but no chemicals are dried. This results in environmental benefits, since the dry air is not adversely affected with vapors that come from the glue according to the prior art.
  • the fibers or chips that are dried are advantageously not covered with glue. Glue "disturbs" the drying process. Thus, in comparison with the prior art, considerable amounts of energy are saved in the dryer, which otherwise have to be used for drying. Significant cost advantages are the result.
  • the glueing according to the invention reduces the amount of glue required in the field of MDF boards. It succeeds in reducing to 45 to 55 kg per m 3 plate. A typical value is 50 to 52 kg per m 3 plate.
  • the dried fibers or chips are fed before gluing a belt weigher.
  • the fibers or shavings on one side by means of a circulating conveyor belt transported on the other side, they are weighed. This gives the information as to what amount of glue is to be added to the fibers in the subsequent step.
  • the supplied fibers or chips are transferred to the subsequent device via the belt weigher.
  • Possible weight fluctuations of the supplied fibers are detected during transport, registered and stored in one embodiment. These data are processed and serve as a manipulated variable for the subsequent gluing.
  • this regulation also takes into account the transport time of the material which passes between the measuring point and the arrival of subsequent devices, such as a feed roller. This can ensure that the change in the intake speed is also due to the actual weight fluctuation.
  • the weight detection of the fibers or chips can be done in the smallest steps and allows a uniform feeding of the fibers or chips with an accuracy of, for example, ⁇ 1%.
  • the gluing is therefore carried out in a mixer in which glue and fibers are mixed together.
  • the use of a mixer offers comparable advantages for chips.
  • the mixer has, in one embodiment of the invention, means for cooling its housing.
  • an at least partially double-walled housing so For example, provided a double-walled tube, which is part of the housing of the mixer.
  • a cooled liquid such as chilled water, is passed through the double-walled housing to cool the mixer or its walls.
  • the cooling should create a condensation layer on the walls inside. Accordingly, the cooling is interpreted.
  • the condensation layer ensures that glued and glue-free fibers or chips do not adhere to the walls and clog the mixer.
  • the fibers After the fibers have dried, they are distributed over a wide area, forming a kind of curtain from the fibers. Glue is then added, in particular sprayed into the curtain. Preferably, an air-glue mixture is sprayed in, so as to ensure the most uniform distribution of the glue.
  • a curtain achieves that the glue is distributed more uniformly on the fibers compared to the case in which the fibers are cotton-like.
  • the fibers are introduced into the mixer in a further embodiment of the invention in the manner of a curtain or a mat.
  • the curtain. or the mat is then blown through nozzles with an air-glue mixture.
  • the glue is thus fed to the curtain via the nozzles.
  • the curtain is preferably guided without contact through the mixer.
  • the contactless implementation of an adhesion of fibers to walls is advantageously avoided. Pollution problems and associated costs are reduced.
  • the glue is blown into the dried fibers together with air, in particular at a temperature of 40 to 70.degree. C., preferably at a temperature of 55 to 60.degree. This ensures that the glue reaches a dry outer skin. It is therefore activated minimally.
  • the glue is prepared in one embodiment so that it hardens after a predetermined time.
  • the glue can be suitably adjusted by temperature treatment.
  • a hardener may be added or added after e.g. Cured for 60 seconds.
  • the preparation of the glue is carried out in particular in the mixer or a hardener together with the glue immediately before the mixer added to the dried fibers.
  • the glue is vortexed with heated air and this air-glue mixture added to the dried fibers or chips.
  • the hot air which is introduced into the mixer, for example, via a booth together with the glue and the dried fibers or chips, activates the surfaces of the produced material Glue droplets something.
  • adhesion of fibers or chips to subsequent devices, such as mixer walls is suitably counteracted. Otherwise, for example, the mixer would have to be cleaned in no time. The production would then be stopped disadvantageously. Unwanted cleaning costs are also incurred accordingly.
  • the free surface of the glue is further activated by means suitable for this purpose so as to facilitate subsequent processing steps.
  • the fibers or shavings affected by glue therefore preferably pass into a riser pipe, which is in particular 10 to 30 m, preferably about 20 m long.
  • the diameter of the riser is in particular at 1 to 4 meters.
  • the riser is preferably also cooled and in turn is then, for example, double-walled to pass a cooling fluid between the two walls of a double wall.
  • the objective is in turn the formation of a condensation layer on the inner walls of the riser, so that the glued fibers or chips do not adhere to the walls.
  • the glued fibers or chips can be passed through a stream of air or gas in a particularly easy contactless manner.
  • the fibers or chips should be passed through the riser at a rate of at least 25 meters per second, preferably at least 35 meters per second. If the speed is lower, fibers or chips remain adhered to the riser despite the aforementioned measures. This would dirty the riser unnecessarily fast. As lower speeds have been provided, the riser had to be cleaned already after 8 hours. By setting a suitable speed, the cycles could be extended to 7 to 8 days. So it just had to be cleaned every week the riser.
  • the maximum speed at which the glued fibers or chips are blown through the riser depends on the performance of the subsequent components or devices. It should be noted that the following components or devices must be able to process the incoming amount of fibers or chips. In practice, an upper limit of 40 meters per second could currently be realized without any problems. From 50 meters per second, the following components were overloaded. It goes without saying that the upper speed limit can be increased as soon as more powerful downstream components are available. Basically, higher transport speeds in the riser are advantageous, since then pollution problems and associated production stoppages are reduced accordingly.
  • the glue on the surface is further activated somewhat in order to be able to carry out subsequent processing steps in a suitable manner.
  • the length of the riser is therefore adapted by the skilled person to the desired degree of glue activation. The expert will take into account the transport speed in the riser in the interpretation.
  • the fibers which are contaminated with glue enter a cyclone.
  • the glue has now been activated sufficiently on the surface due to the aforementioned measures, so that it no longer adheres in the cyclone.
  • the fibers or chips are deposited and fed to the next processing step with a transport means such as a belt.
  • the fibers or chips are separated from the air in the cyclone.
  • the transport means directs the fibers or chips in one embodiment into a viewing device. In the viewer, the fibers are examined for coarse constituents. The coarse ingredients are sorted out automatically. Coarse ingredients are, for example, glue lumps.
  • the fibers or chips are transported by means of a belt on to the press and pressed here to the plate.
  • the press is preferably made of pressed against each other, rotating press belts, which are suitably tempered. So can be pressed continuously.
  • the temperature must be adjusted by the skilled person to the particular glue used. The amount of energy and the resulting. Temperatures for the two press belts are therefore chosen differently in one embodiment, so as to avoid a delay in the produced plate. The temperature difference is easily 20 ° at pressing temperatures which are around 200 ° C.
  • the nozzles, via which the glue is added to the fibers in one embodiment, are preferably configured conical. By the cone tip, the glue then emerges droplet-like, so that in this way a uniform distribution of the glue advantageously promoted, that is improved.
  • the glue is therefore preferably directed directly in the direction of the fibers or chips, for example, sprayed, for example. Moreover, it is then in particular to ensure a sufficient distance between nozzles and subsequent tools in a mixer.
  • the distance between tools in the mixer and the nozzles should be at least 1 meter, preferably at least 2 meters, when the glue is injected horizontally.
  • the fibers are then introduced perpendicular to the beginning of the mixer and transported horizontally in this.
  • the specified, specific distance values refer only to a specific individual case. They are not universal, because it depends on the speed at which the glue escapes from the nozzles.
  • a glue-air mixture is sprayed in the direction of the fibers, then advantageously there is at the same time an air flow with which the fibers are initially blown as contactlessly as possible by subsequent devices such as a mixer or a standpipe and thus transported.
  • a gas can also be used instead of air.
  • the fibers come in the form of a curtain in front of the nozzles.
  • glue injected into the mixer and dirty tools here. Otherwise, the fibers would adhere to the tools and the mixer would clog in no time and would need to be cleaned at short intervals.
  • the tools in the mixer are fastened in one embodiment to a centrally mounted axis and consist of star-shaped protruding rods, which go similar to a rudder blade in a flat area.
  • a star is formed from, for example, four tools. Each two tools thus include an angle of 90 °.
  • the rudder blades are tilted. As a result, a turbulence of the air is achieved and thus a good mixing of the fibers or chips with the glue.
  • Several "stars" formed by tools are fixed at regular intervals on the axis. The fibers or chips are then transported parallel to the axis by the mixer. In general, therefore, the tools are designed in such a way that in addition to the fibers or chips air is swirled. Propeller-like or propeller-like tools are therefore to be preferred.
  • a curtain is produced as follows.
  • a transport such as a conveyor belt or a belt weigher is provided at the end with at least one, preferably with a plurality of rollers.
  • the roller Through the roller (s), the fibers are passed.
  • the rollers are pressed against each other in particular. Remains a gap between two rollers or a roller and an adjacent surface, this is basically harmless. This ensures that a kind of curtain or mat is formed from the fibers by the rollers. So it is the curtain shape generated by the rollers.
  • a conveyor belt it is preferably used a conveyor belt, as this ensures a uniform supply of fibers to the rollers.
  • the speed of delivery to the rollers is controlled to provide the rollers with a particularly consistent amount of fiber.
  • worms are regularly used for transporting fibers in the production of MDF boards.
  • fibers leave snails relatively unevenly.
  • a corresponding uneven curtain formed from the fibers would result.
  • a uniformly thick and wide curtain is an advantage to achieve a uniform glue distribution.
  • more than two rollers are used, are passed through the fibers to produce a curtain.
  • the rollers are preferably offset one above the other so arranged that an acute angle of the rollers is enclosed with a means of transport such as a conveyor belt or belt scale.
  • a means of transport such as a conveyor belt or belt scale.
  • the aperture through which the fiberized curtain is inserted into or in front of the mixer in one embodiment preferably corresponds to the maximum width of the mixer housing, for example the diameter of said tube which at the same time forms the walls of the mixer. This ensures that the entire width in the mixer is covered by the curtain. Otherwise, glue could splash past the remaining openings laterally past the curtain into the interior of the mixer, and the aforementioned fouling problems would occur.
  • the lateral walls of the mixer are preferably cooled in practice to 7 to 15 ° C, in particular to 10 to 12 ° C. In this way it is achieved that a condensation layer settles on the walls. The condensation layer prevents sticking.
  • the temperatures mentioned are also suitable for the formation of a condensation layer on the inner walls within the riser.
  • first wood chips or wood chips are decomposed into the solid wood component cellulose and the liquid components lignin and liquid hemicellulose.
  • Lignin and hemicellulose are separated from the solid components and used as a glue, so according to the invention mixed with the dried wood fibers or wood chips.
  • the solid wood components are processed into fibers or chips.
  • the liquid fractions may be separated from the solid fractions in a so-called agitator.
  • the aforementioned ingredients which are obtained are typically from 20% to 35% by weight of hemicellulose, from 45% to 50% by weight of cellulose and from 20% to 35% by weight of lignin.
  • Wood chips are first added in an embodiment in a plug screw. From the plug screw from the wood chips arrive in the compressed state in a cooking container and are cooked here at high pressure.
  • the cooking container is designed for high pressures.
  • the pressure in the cooking vessel is in particular at least 12 to 22 bar. According to the state of the art, wood chips are usually cooked at pressures of only 8 to 9 bar.
  • the thermal steam treatment separates the solid wood components (cellulose) from lignin and hemicellulose, which are liquid components.
  • the cellulose is in solid form.
  • the two other components lignin and hemicellulose are liquid and can be used as a glue in principle.
  • the adhesive force is mainly caused by the hemicellulose.
  • the liquid fractions hemicellulose and lignin obtained in the manner described above are mixed in one embodiment of the invention with conventional glue.
  • the proportion of hemicellulose and lignin in the glue mixture is preferably not more than 20 wt .-%.
  • the mixture contains a glue on a formaldehyde-urea basis.
  • the nozzles for feeding glue in an embodiment of the invention at a distance from the housing of the mixer. Before an opening of the mixer housing are then the nozzles. Between the nozzle and the opening thus remains a gap or annular gap, entrained by the air and can be supplied as suitable. Moreover, in this embodiment, the air introduced through the gap or annulus may be preheated to provide a desired temperature in the mixer, particularly so as to promote activation of the glue on the surface.
  • Tools in the interior of the mixer are mounted in one embodiment on an axis. Annular around the axis are then arranged the nozzles for feeding glue, so as to provide fibers evenly with glue.
  • the fibers or the curtain made of fibers are then preferably fed perpendicularly to the axis between nozzles and tools.
  • nozzles are arranged annularly in one or more rows. With a correspondingly large diameter, the entire opening of the mixer is sprayed with glue by arranging a second row of nozzles in a ring around the axis.
  • glass fibers or synthetic fibers are additionally added in one embodiment.
  • the addition takes place in particular in or immediately before the mixer.
  • particularly well plate-like molded parts can be produced, which are provided for example as interior trim in a car.
  • Such shaped plates can be used in the automotive industry, for example, as parcel shelf. It It then suffices to merely pre-press the layer system. A final pressing step does not have to be carried out.
  • MDF panels have a top and a bottom, which are parallel to each other and which are flat. These plates are a few millimeters thick. They usually have no plastic or glass fibers, since no special forms must be realized, which differ from a flat surface.
  • Moldings of the aforementioned type are also used in the furniture industry. Such moldings are z. B. needed for doors that are specially shaped for design reasons.
  • the molded parts In contrast to plates consisting of fibers, for example MDF plattens, which are intended for the production of panels, it is sufficient for the molded parts to merely pre-press them.
  • the pre-pressing takes place at much lower pressures than the actual pressing step.
  • the pre-pressure can be only one-third of the pressure that is used for the actual pressing step.
  • the actual pressing step can be carried out at pressures of 75 to 80 kg / cm 2 .
  • the proportion of glass fibers and / or plastic fibers in a molding is up to 25 wt .-%, preferably up to 15 wt .-%, in order to arrive at cost-effective results. At least 5% by weight should be used.
  • Fibers for the production of molded parts to the fibers which are used for the production of MDF or HDF panels for panels, in particular for floor panels, is also independent of the fibers of the invention mentioned here particularly economical compared to the prior art.
  • FIG. 1 shows a section through a belt scale 1 and a subsequent mixer 2.
  • dried fibers which were made from wood chips, fed through an opening of a housing 4 of the belt scale 1.
  • a slope 5 directs the incoming fibers onto the belt of the belt scale.
  • the belt scale detects and controls the amount of material that is transported in the direction of the three rollers 6.
  • the three rollers 6 are superposed and offset so arranged that they include ⁇ with the belt weigher 1 an acute angle.
  • the fibers on the belt scale reach this acute angle. They pass through the rotating rollers 6.
  • a curtain is formed from the fibers, which is transported vertically downward along the arrow 7 due to gravity. The curtain thus enters the mixer 2, specifically between a plurality of nozzles 8 and tools 9.
  • the mixer consists of a tubular housing.
  • the housing is formed by a double wall 10 and 11.
  • Central to the interior of the housing is an axle 12, on which the tools 9 are mounted.
  • a tool 9 closes with the axis 12 a right Angle.
  • Each four rudder blade-like tools 9 are summarized in a star shape.
  • the front area into which the fiber curtain is inserted is free of tools. This ensures that a sufficiently large distance between the tools 9 and the nozzles 8 is present. This distance is provided so that from the nozzles 8 leaking glue does not impinge directly on the tools during operation.
  • the diameter of the housing of the mixer corresponds to the width of the opening through which the fiber curtain is inserted into the mixer.
  • the width of the curtain is adapted to the width of the opening.
  • the nozzles 8 are arranged in a semicircle around the axis 12 in an upper area. This causes on the one hand, the curtain is evenly provided with glue and on the other hand, the emerging from the nozzle 8 glue does not impinge directly on parts of the mixer. Between the nozzles 8 and the housing 10, 11 a distance is arranged, so that a kind of annular gap is formed. Air is sucked in via this annular gap. Not shown are means for heating the air, which is sucked. This creates a glue-air mixture.
  • the glue-provided curtain (in other words, a mat formed of fibers) is transported by the air flow parallel to the axis 12 through the mixer 2.
  • the axis rotates during transport and thus the tools 9.
  • the glue is further mixed with the fibers.
  • a cooled liquid is introduced in order to create a condensation layer on its inner walls in the interior of the mixer.
  • FIG. 2 a plan view of the mixer parallel to the axis 12 is shown. For clarity, only two tools 9 located. With reference to FIG. 2, a single-row, semi-circular arrangement of the nozzles in the upper region is illustrated in particular.

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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)

Claims (15)

  1. Procédé de fabrication d'une plaque réalisée à partir de fibres ou de copeaux, comprenant les étapes suivantes :
    - formage des fibres ou des copeaux en un rideau ou une nappe au moyen d'au moins un cylindre (6) ;
    - application de colle sur le rideau ou la nappe ou dans le rideau ou dans la nappe à une température inférieure à 100 °C,
    - pressage des fibres ou des copeaux pourvus de la colle en une plaque à des températures supérieures à 140 °C.
  2. Procédé de fabrication d'une plaque réalisée à partir de fibres ou de copeaux, comprenant les étapes suivantes :
    - séchage de fibres ou de copeaux dans une installation de séchage,
    - formage des fibres ou des copeaux en un rideau ou une nappe au moyen d'au moins un cylindre (6) ;
    - application de colle sur le rideau ou la nappe ou dans le rideau ou dans la nappe en dehors de l'installation de séchage à une température refroidie,
    - pressage des fibres ou des copeaux pourvus de la colle en une plaque, en particulier avec apport de chaleur.
  3. Procédé selon une des revendications précédentes, caractérisé en ce que la colle est appliquée sur les fibres ou les copeaux en pulvérisant un mélange colle-gaz sur les fibres, en particulier caractérisé en ce que la colle est appliquée en une quantité telle que 45 à 55 kg de colle sont mis en oeuvre par m3 de plaque.
  4. Procédé selon une des revendications précédentes, caractérisé en ce que, avant l'application de colle, les fibres ou les copeaux sont placés sur une bande de pesage (1), et la bande de pesage (1) et l'application de colle sont commandées de façon que le rapport quantitatif entre la colle et les fibres ou les copeaux soit sensiblement constant pendant l'application de la colle.
  5. Procédé selon une des revendications précédentes, caractérisé en ce que les fibres ou les copeaux pourvus de colle sont mélangés et/ou mis en tourbillon, en particulier dans un mélangeur (2) à parois refroidies (10, 11).
  6. Procédé selon une des revendications précédentes, caractérisé en ce que du bois est décomposé en constituants solides et en constituants liquides, et des constituants liquides sont appliqués en tant que colle sur les fibres ou les copeaux, les constituants liquides étant de préférence refroidis avant l'application.
  7. Procédé selon une des revendications précédentes, caractérisé en ce que la colle contient de la lignine et de l'hémicellulose, à savoir en particulier dans une proportion allant jusqu'à 20 % en poids.
  8. Procédé selon une des revendications précédentes, caractérisé en ce que des pièces profilées en forme de plaque sont fabriquées.
  9. Procédé en particulier selon une des revendications précédentes, caractérisé en ce que des plaques MDF et/ou HDF pour des panneaux de plancher et des pièces profilées sont fabriquées en même temps, et les fibres utilisées à cet effet proviennent de la même installation, en particulier de la même installation de broyage.
  10. Dispositif pour la production d'une plaque réalisée à partir de fibres ou de copeaux, comportant une installation de séchage dans laquelle les fibres ou les copeaux sont séchés, comportant une installation d'encollage dans laquelle les fibres ou les copeaux sont pourvus de colle et comportant des moyens pour presser les fibres ou les copeaux pourvus de colle en une plaque,
    caractérisé en ce
    qu'il est prévu des moyens de transport (1, 7) avec lesquels les fibres ou les copeaux sont transportés de l'installation de séchage vers l'installation d'encollage (2, 8), ainsi que des moyens (6) pour acheminer les fibres sous la forme d'un rideau ou d'une nappe vers l'installation d'encollage, lesquels moyens (6) comprennent des cylindres.
  11. Dispositif selon la revendication 10, dans lequel est prévu un mélangeur (2) avec des moyens de refroidissement de son enceinte (10, 11), de préférence dans lequel est prévu un mélangeur (2) qui comprend au moins en partie une enceinte (10, 11) à double paroi, à savoir en particulier un tube à double paroi.
  12. Dispositif selon une des revendications précédentes relatives au dispositif, dans lequel sont prévus des moyens de refroidissement pour refroidir un liquide, ainsi que des moyens pour refroidir l'enceinte d'un mélangeur et/ou d'une conduite montante à l'aide du liquide refroidi.
  13. Dispositif selon une des revendications précédentes relatives au dispositif, comportant des moyens pour produire une couche d'eau de condensation sur les parois intérieures d'un mélangeur et/ou d'une conduite montante.
  14. Dispositif selon une des revendications précédentes relatives au dispositif, dans lequel une bande de transport ou une bande de pesage (1) est prévue pour l'acheminement des fibres vers les cylindres.
  15. Dispositif selon une des revendications précédentes relatives au dispositif, dans lequel les moyens (6) pour acheminer les fibres sous la forme d'un rideau ou d'une nappe vers l'installation d'encollage comprennent des cylindres (6) qui sont agencés en superposition et en décalage, les cylindres étant en particulier agencés de manière à former un angle aigu (α) avec une bande de transport ou une bande de pesage (1).
EP12155541.1A 2001-08-01 2001-08-16 Méthode et appareil pour la fabrication d'un aggloméré de fibres ou de copeaux Expired - Lifetime EP2476526B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20112599U DE20112599U1 (de) 2001-08-01 2001-08-01 MDF-Platte nebst Herstellung
EP01967279A EP1412147B1 (fr) 2001-08-01 2001-08-16 Panneaux mdf et leur procede de production

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EP01967279A Division EP1412147B1 (fr) 2001-08-01 2001-08-16 Panneaux mdf et leur procede de production
EP01967279.9 Division 2001-08-16

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EP2476526A1 EP2476526A1 (fr) 2012-07-18
EP2476526B1 true EP2476526B1 (fr) 2014-07-30

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EP01967279A Expired - Lifetime EP1412147B1 (fr) 2001-08-01 2001-08-16 Panneaux mdf et leur procede de production

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EP (2) EP2476526B1 (fr)
CN (1) CN1400085B (fr)
CA (1) CA2416817A1 (fr)
DE (2) DE20112599U1 (fr)
ES (2) ES2519641T3 (fr)
FR (1) FR2828128B1 (fr)
NO (1) NO20035856L (fr)
PL (1) PL194518B1 (fr)
PT (2) PT1412147E (fr)
RU (1) RU2286248C2 (fr)
WO (1) WO2003013808A1 (fr)

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CN1400085B (zh) 2010-11-03
EP2476526A1 (fr) 2012-07-18
PL349240A1 (en) 2003-02-10
DE10139966A1 (de) 2003-02-27
RU2286248C2 (ru) 2006-10-27
EP1412147A1 (fr) 2004-04-28
NO20035856L (no) 2005-03-24
WO2003013808A1 (fr) 2003-02-20
DE20112599U1 (de) 2002-12-19
FR2828128B1 (fr) 2005-06-03
PT1412147E (pt) 2012-08-22
ES2389498T3 (es) 2012-10-26
DE10139966C2 (de) 2003-12-04
EP1412147B1 (fr) 2012-06-13
CN1400085A (zh) 2003-03-05
PL194518B1 (pl) 2007-06-29
ES2519641T3 (es) 2014-11-07
CA2416817A1 (fr) 2003-02-01
PT2476526E (pt) 2014-10-22
FR2828128A1 (fr) 2003-02-07

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