EP1283766B1 - Procede et dispositif pour supprimer les irregularites dans un flux de fibres de bois - Google Patents

Procede et dispositif pour supprimer les irregularites dans un flux de fibres de bois Download PDF

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Publication number
EP1283766B1
EP1283766B1 EP01945161A EP01945161A EP1283766B1 EP 1283766 B1 EP1283766 B1 EP 1283766B1 EP 01945161 A EP01945161 A EP 01945161A EP 01945161 A EP01945161 A EP 01945161A EP 1283766 B1 EP1283766 B1 EP 1283766B1
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EP
European Patent Office
Prior art keywords
roller
fibres
coarse material
chute
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.)
Expired - Lifetime
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EP01945161A
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German (de)
English (en)
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EP1283766A1 (fr
Inventor
Fritz Schneider
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Flakeboard Co Ltd
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Flakeboard Co Ltd
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Publication of EP1283766A1 publication Critical patent/EP1283766A1/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
    • 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

Definitions

  • the invention relates to methods and devices for dissolving Unevenness in one intended for the production of fiberboard Stream of discharged from a metering wood fibers after the The preamble of claim 1 or claim 4.
  • Rollers which serve to dissolve irregularities in a fiber stream can, are per se from DE 38 18 117 A1, DE 44 39 653 A1 and WO 99/11441 known. The effectiveness of these rolls in terms of However, resolution of irregularities is limited.
  • EP 0 800 901 A1 discloses an apparatus for producing a nonwoven fabric in particular shavings are described, are provided in the rolls, in Connection with a downstream air separation for the separation of Shavings serve as a function of their size to size distribution to achieve over the fleece thickness.
  • grit in the form of fibers is by such Rolling does not achieve a satisfactory dissolving effect.
  • a separation the fibers in different particle size is due to fiberboard the desired homogeneity in the structure of structure is not desired.
  • DE 43 02 850 C2 discloses a method and a device for spreading described by wood fibers, the dissolution of grit compactors by two oppositely rotating at different speeds rollers takes place, the merging and thus a meandering Have gap forming Auflösezähne. To scatter the fibers is a Provided a plurality of downstream spreader rollers. This procedure is but very expensive.
  • US 4,322,380 relates to a method for spreading fiber material for Forming a fleece. Part of the revelation are also a generic one Method and a generic device.
  • the invention is based on the object, a generic method for To provide, which is very effective and inexpensive. Furthermore, lies the Invention the object of the invention to provide a generic device, with which such a procedure can be carried out.
  • the object is in terms of the method by the features of the claim 1 solved, wherein the fibers from the outlet opening of the shaft section be fed to an air-fiber direction.
  • the fibers essentially occur horizontally from the shaft section and get into one by negative pressure generated upward airflow.
  • the airflow breaks Fibers with, which are isolated as desired and thus as a particle have relatively low weight, while impurities in the form of Grobgut be fed by the gravitational force to a coarse material discharge.
  • the coarse material can be moved vertically by an angle-adjustable flap be directed down to the coarse material discharge. It may also be in place of the upward directional airflow, a downwardly directed airflow, which is directed counter to the direction of rotation of the opening roller.
  • an adjustable deflector can be arranged so that the coarse material in the Grobgutausgabschacht is rejected.
  • fibers having an above-average weight and not discharged directly through the upward airflow be in a coarse material discharge upstream Vietnamesesichter by a additional negative pressure generated upwardly directed bleed airflow lifted into the air stream.
  • the opening roller In the air-fiber direction is due to the action of the opening roller next a resolution of impurities an acceleration and thus a Separation of the fiber stream achieved, whereby the visual effect improves becomes.
  • the fiber stream is pulled apart to form a thin film.
  • a mechanical pre-separation of heavy particles from causes the fiber flow before it enters the air flow of the fiber direction.
  • the pre-separation takes place due to the different throwing parabolas of heavy and light particles.
  • the heavy particles include in particular also glue lumps and Leiman embroidery, due to their great hardness by the Opening roller were not resolved.
  • the opening roller then has not only the function of dissolution but also of mixing.
  • the opening roller rotates rapidly, e.g. at about 300 to 2000 rpm. Preferably, it has a diameter of 500 to 600 mm and rotates at 300 to 2000 rpm.
  • the fibers only a resolution and Air-fiber direction according to claim 1 using a corresponding subjected to dissolution apparatus according to the invention and subsequently after a pneumatic transport via a metering device for Forming a web of another corresponding dissolving device with integrated molding machine are supplied, wherein the wood fibers of the Dosing fed through a feed chute an opening roller which is provided on its surface with a variety of pens and so rotates that the fibers are deflected by the pins and essentially along a through a portion of the circumference of the opening roller and an opposite wall limited shaft section led be, at an outlet opening of the manhole section, preferably in Essentially horizontal, emerge and to form a web of the Exit opening on a forming belt of a molding machine, wherein the Formband is a screen belt, sucked on the surface of the fibers become.
  • the opening roller rotates at high speed.
  • the air-fiber direction are in particular glue lumps, glue and coarse wood particles (so-called "shiwes") used in fiber production arise, pulled out of the fiber stream.
  • the exit opening of the manhole section may be arranged to the fibers are substantially horizontal and thus parallel to the forming belt and further ejected in the direction of movement of the forming belt, and thereby Residual sword parts that have passed the air-fiber direction, by a mechanical Separation effect, which also the opening roller of the dissolving device having integrated molding machine, in the molding machine at Fleece structure to be transported in an upper layer of the fibrous web.
  • the upper layer of the fibrous web is preferably by a downstream scalping roller and brushed over a pneumatic transport a process at the beginning of the air-fiber direction, preferably in a metering bunker within the air-fiber direction, fed.
  • a dissolving device with integrated air-fiber separator provided in which the above-described outlet opening of the Chute section is arranged so that the fibers are substantially horizontal emerge into an air duct, which generates a vacuum, upward or downward air flow leads, wherein a coarse material discharge shaft, one of the outlet opening of the shaft section opposite Inlet and arranged below the inlet Grobgutaustrag has, is connected to the air duct.
  • the fiber flow is through the opening roller is pulled apart due to acceleration, causing the visual effect is improved.
  • the opening roller is preferably in its speed adjustable. This can reduce the speed at which the fibers exit the Manhole section to be ejected, which varies the parabola especially affects the large parts, which in the visual process in the Grobgutschacht should arrive.
  • an angle-adjustable flap on the Inlet of the coarse material discharge shaft be arranged so that the coarse material is diverted into the coarse material discharge shaft.
  • an adjustable deflector can be arranged so that the coarse material in the coarse material discharge shaft is diverted.
  • the coarse material discharge shaft has at least one air supply opening in a lower area, through which through the air duct applied negative pressure an upwardly directed air flow to the Nachsichtung above average heavier fibers is produced.
  • the pins of the opening roller with increasing distance to the roller axis of rotation tapered conically.
  • the wall of the shaft section can in particular be formed by a hood, the deliverable to the opening roller is, so that the distance of the wall from the outer ends of the pins is variable is. The distance is relatively small, so that the fiber flow starting from the Outlet opening of the feed chute in a first section of the Manhole section is held in the area of action of the opening roller. in the further course of the shaft section, the fiber flow occurs after the first Stage of fiber dissolution has taken place by the centrifugal force of the rotational movement in the shaft section from the sphere of action of the release pins out and attaches to the wall of the shaft section.
  • To the Protection of the opening roller can in the feed shaft electromagnets or permanent magnets installed to extract metal parts from the fiber stream be.
  • Additives e.g. Water, Superheated steam, accelerator or retarder can be supplied.
  • Fiber bundles and drops of condensed water are very effective in the fiber stream by the deflection of the fiber stream or the contact with the fast dissolved rotating pins. Even the very hard glue lumps are dissolved to a certain extent.
  • At the outlet of the Manhole section therefore exits a homogenized fiber stream through which the fibers are scattered on the forming belt. So with the very effective reduced Number of irregularities in the fiber flow and the associated Avoiding streaks and stains of different density in from the fiber flow produced fiberboard and the committee Fiberboard significantly reduced and the technological properties of the End product, in particular the surface texture are improved.
  • Disadvantages of the glue-saving and low-emission dry gluing in the Production of fiberboard eliminated or reduced in relation to the glue lumps become.
  • the fibers become one thin, preferably millimeter-thin fiber stream accelerates, which with high speed to the outlet opening of the manhole section moves, wherein the fiber flow through the wall of the shaft section to the Output is guided out of the outlet opening.
  • a comb strip profile with arranged at least one row of nail-like elevations.
  • the length The nail-like elevations are chosen so that the entire fiber stream before emerging from the outlet opening of the shaft section, the comb strip must happen. This will result in a further dissolution of the fiber material causes.
  • the degree of fineness of the comb strip can be determined by an appropriate choice of The strength of the nail-like surveys and the number of these surveys varies become.
  • the comb strip can be designed and arranged so that except by the impact of the fibers on the nail-like elevations caused fiber dissolution at the same time the direction of the fiber flow is changed. This change of direction is done so that the fibers are moving through the centrifugal force the rotational movement in the shaft section after a section of the Manhole section have removed from the sphere of action of the pins, again be returned to the sphere of action of the pins.
  • a device which with only one single rotating roller with attached pins and a shaft section with integrated comb strip at its outlet opening the fiber material fine in at least two stages of different degrees of fineness, then dissolves very fine and at the same time has the property, in conjunction with the suction air the vacuum boxes and the screen belt with a homogeneous nonwoven fabric to form a constant weight per unit area.
  • a feed opening for an air flow with a parallel to the forming belt directed speed component can be provided.
  • the small distance the outlet opening of the shaft portion of the forming belt and the parallel to this directed air flow avoid that the fibers with a relatively high speed hit the forming belt.
  • the vertical extent of the airflow supply opening may be across the width of the forming belt by several independently height adjustable Sheets changeable to set a certain air supply symmetry and in this way the laying height of the fibers across the width to be able to influence the forming belt.
  • the shaft section opposite connects and into a can extend parallel to the forming belt extending section results also, a suction effect of the vacuum below the screen belt on in the feed chute fibers.
  • a suction effect of the vacuum below the screen belt on in the feed chute fibers is that at the section opposite the shaft section the opening roller forms only a narrow passage for the fibers.
  • the cross section of the feed chute may be changeable, so as to increase the speed to be able to influence the fibers along the feed chute.
  • the speed of the fibers in the feed chute in relation to the peripheral speed the rotating opening roller determines the penetration depth of the fibers into the opening roller before they are caught and deflected by the pins.
  • the speed of the fibers in the feed chute determines the Efficiency of the fiber resolution and at the same time the fiber acceleration.
  • the opening device according to FIG. 1 could also be used as a molding machine denote integrated dissolving device and the dissolving devices according to Fig. 2a and 2b as air-fiber separator with integrated dissolving device.
  • the opening device with integrated molding machine according to FIG. 1 has a Dosing bunker 1 containing dry-glued wood fibers 2.
  • a series of feed rollers 3 is arranged, the for distribution of supplied by a dosing hopper inlet, not shown Fibers serve in the dosing bunker 1.
  • a metering 4 and a series of front discharge rollers 5 are the Fibers 2 discharged from the dosing bunker 1.
  • the Discharge rollers 5 larger clumps of the fibers 2 dissolved.
  • the fibers 2 fall from the dosing hopper 1 as a stream of fibers 6 in a feed chute 7, which is bounded by two mold walls 8 and 9. At the top End of the feed chute 7 is a first air supply opening 10th Further, on the mold wall 9 over the width of the fiber stream 6 a row arranged by nozzles 30, via the additives 31 to the fibers of the fiber stream 6 can be sprayed.
  • the fiber flow hits 6 on an opening roller 12, on the surface of a plurality of pins 13th is arranged, which increases with increasing distance to the axis of rotation of Taper opening roller 12 conically to a tip.
  • the opening roller 12 has a diameter of 550 mm and rotates in the direction indicated by the arrow 14 Direction of rotation with approx. 1000 rpm.
  • the speed of the opening roller 12th is adjustable so that they adapt to different dissolving materials can. Total are on the opening roller 12, which for a process width designed by 1500 mm, about 6000 pins arranged.
  • By the arrow 29 is the direction of movement the hood indicated.
  • a comb strip 34 is arranged, the conical, has adjustable teeth 53 at an angle to the flow direction of the fibers.
  • the teeth 53 are in two staggered rows each over the Working width of the shaft portion 17 is arranged, in particular from the Fig. 3 and 4 can be seen.
  • the teeth 53 are perpendicular to the flow direction in FIG. 1 aligned and inclined in Figs. 3 and 4, that they occupy an angle of about 135 ° with the impinging fiber stream.
  • a screen belt trained forming belt 19 is arranged below the outlet opening 18 of the shaft section 16 .
  • a screen belt trained forming belt 19 is arranged at the bottom of the form band 19 .
  • a series of vacuum boxes 20 through which a through the arrow 27 indicated negative pressure on the forming belt 19 is generated.
  • One Slider 32 is for adjusting the amount of extracted air at each vacuum box 20 arranged.
  • a second air supply opening 21st Between the outlet opening 18 of the shaft section 17 and the forming belt 19 is a second air supply opening 21st The vertical extent of the second air supply opening 21 is over the Width of the forming belt 19 by several independently height-adjustable plates, one of which shown in Fig. 1 and the reference numeral 35 is provided for adjusting a certain air supply symmetry variable. For the sake of simplicity, the sheets 35 in FIG. 3 and 4 not shown.
  • To the mold wall 8 of the feed chute 7 includes a guide wall 22nd which approaches the forming belt 19 to a predetermined distance. There, where the mold wall 8 merges into the guide wall 22, is a nose 23 formed such that the passage between the mold wall 8 and the Guide wall 22 and the opening roller 12 is the lowest.
  • a Adjusting spindle 33 By means of a Adjusting spindle 33, the mold wall 8 moves transversely to the feed chute 7 be about its cross-section and the speed of the fiber stream. 6 and adjust the air flowing through the feed chute 7.
  • a scalping roller 24 is arranged above the forming belt 19, a scalping roller 24 is arranged.
  • the Direction of movement of the forming belt 19 is indicated by the arrow 25.
  • the fibers are moved to the outlet opening 18 and there braked by the conical teeth 53 and in the direction of the pins 13th and thus in turn brought into the sphere of action of the opening roller 12.
  • the pins 13 move faster than the Fibers, the pins 13 again cause a resolution of irregularities in the fiber stream.
  • the fibers Due to the arrangement of the outlet opening 18 at the lowest point of the opening roller 12 and through the second air supply opening 21 parallel to the Formband 19 directed air, the fibers are placed on the forming belt 19, without the impact of the fibers on the forming belt 19 a Rolling effect due to too high a speed difference between the fibers and the forming belt 19 occurs.
  • the outlet opening 18 of the Chute section 17 is arranged so that the fibers under the action of described below and indicated by arrow 28 air flow substantially with a movement component parallel to the forming belt on this reach.
  • the upper Position of the nonwoven is determined by the downstream scalping roller 24 abkarmmt and can over a pneumatic transport into a dosing bunker of the upstream air-fiber separator be guided.
  • the height-adjustable plates 35 of the second air supply opening 21 the laying height of the fibers on the Width of the forming belt 19 are influenced.
  • the two Air supply openings 10 and 21 sucked air can be conditioned and warmed up to speed up a later pressing process.
  • the nose 23 ensures that only a very small amount of fibers from the fiber stream 6 not through the shaft section 17 but along the mold wall 8 and the guide wall 22 reaches the forming belt 19.
  • the passage between the nose 23 and the opening roller 12 is large enough to, as indicated by the arrow 28, concentrating on the mold wall 8 To pass air from the feed chute 7 to the forming belt 19, whereby the fiber stream 6 in addition to the gravitational force a suction effect experienced by the vacuum applied below the forming belt 19.
  • the effectiveness of the opening roller 12 is increased.
  • the mold walls 8 and 9 can also be slightly inclined be, for example, 15 °.
  • the scalping roller 24 ensures that a on the forming belt 19 through the fibers 26 formed nonwoven fabric in a predetermined nonwoven weight constant is held so that in which subsequent to the shaping Pressing a fiberboard obtained with uniform weight as possible becomes. Further tasks of scalping roller 24 are the production of a flat nonwoven surface and, as already mentioned, the combing of possibly still provided with residual impurities upper layer of the Nonwoven fabric.
  • the Detaching device according to FIG. 2a has a dosing bunker 1 with wood fibers (not shown).
  • the wood fibers are the dosing bunker 1 either from a dryer, not shown, via a first inlet opening 36 or as Return material from a scalping roller, not shown, and one not shown Sobeklamung a molding machine on a second Inlet opening 37 has been supplied.
  • An outlet opening 18 of a shaft section 17 opens into an air channel 38 of the fiber viewer.
  • the air channel 38 has a lower channel section 39 and an upper channel section 40. Via the lower channel section 39 is used to generate an indicated by the arrows 51 and 52 airflow Air supplied, the amount of which are controlled by an air supply slider 41 can.
  • an adjustment flap 42 is further arranged, which is for adjustment the flow direction and at the same time the flow velocity of supplied air is used.
  • a negative pressure is generated via a fan, not shown.
  • an inlet 43 of Grobgutaustragsschachtes 44 Opposite the outlet opening 18 of the shaft section 17 is an inlet 43 of Grobgutaustragsschachtes 44 arranged.
  • the coarse material discharge shaft 44 extends in the vertical direction and has at its lower Close a Grobgutaustrag 45 on. Above the Grobgutaustrags 45 are third air supply openings 46 arranged. About the cross section of the Grobgutaustragsschachtes 44 air control valves 47 are attached. Behind the inlet 43 is a Grobgutabweiser 48 in the form of an adjustment flap.
  • the opening device with integrated air-fiber separator is as follows based. Of the opening roller 12 metered and guided abandoned Fiber stream 6 is accelerated by the opening roller 12 and thereby apart drawn. Impurities are mainly dissolved or crushed. As pulled apart fiber stream, the fibers enter the Air duct 38. Light normal 49, so average heavy single Fibers recycle because of their relatively low kinetic energy the exit from the shaft section 17 beginning a short parabola, in order then from the upwardly directed in the air duct 38 air flow 51, 52 to be taken.
  • Grobgut 50 which is heavier than the normal 49, describes by the higher kinetic energy a longer parabola parabola and thus gets by an impact on the coarse material deflector 48 in the coarse material discharge shaft 44th
  • the throughput of the air-fiber separator can be about 300 g fibers / m 3 air with an air velocity of 20 m / sec in Fasersichter.
  • the fibers discharged through the upper channel section 40 may be, for example via a cyclone of a dissolving device with integrated molding machine be supplied according to FIG. 1.
  • the components of the resolving device according to Fig. 2a correspond, denoted by the same reference numerals.
  • the dissolving device 2b differs from the resolving device according to FIG. 2a in FIG Essentially by a downward flow of air through the arrows 51a and 52a is indicated.
  • the downward airflow flows on the the shaft section 17 opposite side of the opening roller 12 in a direction opposite to the direction of rotation of the opening roller 12.
  • the upward air flow of the opening roller 12 according to FIG. 2a flows however, in one direction, the direction of rotation of the opening roller 12th equivalent.
  • the flaps 42 and 48 of the opening device of FIG. 2a are not realized in the opening device according to FIG. 2b.
  • a height adjustable Grobgutabweiser 48a arranged so that the coarse material 50 in the coarse material discharge chute 44th is rejected, the normal 49 in the lower channel section 39 arrives.
  • an adjusting flap 42a is further arranged, which is used for setting the Flow direction and at the same time the flow velocity of the supplied air is used. Further, the position of the air supply spool 41 is relative to the opening device according to Fig. 2a changed.

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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)
  • Nonwoven Fabrics (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (8)

  1. Procédé pour supprimer les irrégularités dans un flux, prévu pour la fabrication de panneaux de fibre, de fibres de bois (6) sortant d'un dispositif de dosage (1), les fibres (6) étant amenées depuis le dispositif de dosage par une gaine d'alimentation (7) à un cylindre de suppression (12), caractérisé en ce que le cylindre de suppression (12) est pourvu, à sa surface, d'une pluralité de broches (13) et tourne de telle sorte que les fibres (6) sont déviées par les broches (13) et sont guidées essentiellement le long d'une section de gaine (17) délimitée par une section partielle (15) de la périphérie du cylindre de suppression (12) et une paroi (16) opposée, avec étirement du flux de fibre en un film mince et sortent sensiblement horizontalement au niveau d'une ouverture de sortie (18) de la section de gaine (17), et en ce que les fibres (6), après la sortie de la section de gaine (17), sont inspectées grâce à un flux d'air (51, 52 ; 51a, 52a) généré par dépression et orienté vers le haut ou vers le bas, qui s'exerce sur les fibres (6) et qui entraíne des fibres (49), des impuretés sous forme de particules grossières (50) étant amenées par la force de gravité vers une sortie de particules grossières (45).
  2. Procédé selon la revendication 1, caractérisé en ce que, en cas de flux d'air (51, 52) orienté vers le haut, les particules grossières (50) sont guidées par un clapet (48) réglable en angle, verticalement vers le bas en direction de la sortie de particules grossières (45).
  3. Procédé selon la revendication 1 ou 2, caractérisé en que l'on utilise, comme cylindre de suppression (12), un cylindre avec un diamètre de 500 à 600 mm, ce cylindre fonctionnant à un régime 300 à 2000 tours par minute.
  4. Dispositif pour la suppression d'irrégularités dans un flux, prévu pour la fabrication de panneaux de fibre, de fibres de bois (6) sortant d'un dispositif de dosage (1), une gaine d'alimentation (7) s'étendant au-dessous d'une sortie (5) du dispositif de dosage (1) depuis la sortie (5) vers un cylindre de suppression (12), caractérisé en ce que le cylindre de suppression (12) présente), à sa surface, une pluralité de broches (13) et peut être tourné de telle sorte que des fibres (6) arrivant sur le cylindre de suppression (12) sont déviées par les broches (13), et en ce qu'une section de gaine (17), qui est limitée par une section partielle (15) du pourtour de cylindre et une paroi opposée (16), s'étend depuis une ouverture de sortie (11) de la gaine d'alimentation (7) dans le sens de rotation (14) du cylindre de suppression (12) et est pourvue d'une ouverture de sortie (18) pour les fibres, qui est disposée de telle sorte que les fibres (6) sortent essentiellement horizontalement en un flux de fibres étiré dans un conduit d'air (38), dans lequel passe un flux d'air (51, 52 ; 51a, 52a) généré par dépression et orienté vers le haut ou vers le bas, une gaine d'évacuation de particules grossières (44), qui présente une entrée (43) opposée à l'ouverture de sortie (18) de la section de gaine (17) et une sortie de particules grossières (45) disposée au-dessous de l'entrée (43), étant reliée au conduit d'air (38).
  5. Dispositif selon la revendication 4, caractérisé en ce que, en cas de flux d'air (51, 52) dirigé vers le haut, un clapet (48) réglable en angle est disposé à l'entrée (43) de la gaine d'évacuation de particules grossières (44) de telle sorte que les particules grossières (50) soient déviées vers la gaine d'évacuation de particules grossières (44).
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que les broches (13) du cylindre de suppression (12) se rétrécissent à la façon d'un cône en une extrémité pointue au fur et à mesure que la distance à l'axe de rotation du cylindre de suppression (12) augmente.
  7. Dispositif selon l'une quelconque des revendications 4 à 6, caractérisé en ce que la paroi (16) de la section de gaine (17) est formée par un capot pouvant être ajouté au cylindre de suppression (12).
  8. Dispositif selon l'une quelconque des revendications 4 à 7, caractérisé en ce que, dans la gaine d'alimentation (7), sont disposées des buses (30) pour la pulvérisation des fibres (6) sortant du dispositif de dosage (1) avec des additifs (31).
EP01945161A 2000-05-24 2001-05-18 Procede et dispositif pour supprimer les irregularites dans un flux de fibres de bois Expired - Lifetime EP1283766B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10025177 2000-05-24
DE10025177A DE10025177B4 (de) 2000-05-24 2000-05-24 Verfahren und Vorrichtung zur Auflösung von Ungleichmäßigkeiten in Holzfaserströmen
PCT/EP2001/005729 WO2001089783A1 (fr) 2000-05-24 2001-05-18 Procede et dispositif pour supprimer les irregularites dans un flux de fibres de bois

Publications (2)

Publication Number Publication Date
EP1283766A1 EP1283766A1 (fr) 2003-02-19
EP1283766B1 true EP1283766B1 (fr) 2005-08-03

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EP01945161A Expired - Lifetime EP1283766B1 (fr) 2000-05-24 2001-05-18 Procede et dispositif pour supprimer les irregularites dans un flux de fibres de bois

Country Status (7)

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EP (1) EP1283766B1 (fr)
AT (1) ATE301029T1 (fr)
AU (1) AU2001267458A1 (fr)
CA (1) CA2411051C (fr)
DE (2) DE10025177B4 (fr)
PL (1) PL365953A1 (fr)
WO (1) WO2001089783A1 (fr)

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WO2002014038A1 (fr) 2000-08-11 2002-02-21 Flakeboard Company Limited Procede et dispositif d'encollage de fibres sechees destinees a la fabrication de panneaux de fibres
DE10156070B4 (de) * 2000-05-24 2009-11-19 Flakeboard Company Limited, St.Stephen Verfahren und Vorrichtung zur Auflösung von Ungleichmäßigkeiten in Holzfaserströmen
DE102006040044B3 (de) * 2006-04-18 2007-06-06 Flakeboard Co. Ltd. Verfahren und Vorrichtung zum Beleimen von zur Herstellung von Faserplatten vorgesehenen, getrockneten Fasern
DE102006027540B4 (de) * 2006-06-14 2010-07-22 Glunz Ag Verfahren und Vorrichtung zur Herstellung von Formkörpern, insbesondere von Platten, aus Lignocellulose haltigen Fasern
DE102011008757A1 (de) 2011-01-17 2012-07-19 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren und Vorrichtung zum Aussichten von Verunreinigungen aus einem pneumatischen Faserstrom
DE102017120043B3 (de) 2017-08-31 2018-12-20 Siempelkamp Maschinen- Und Anlagenbau Gmbh Anlage und Verfahren zur Herstellung von beleimten Pflanzenpartikeln
WO2020226545A1 (fr) * 2019-05-07 2020-11-12 Ikea Supply Ag Appareil et procédé pour la fabrication de panneaux à base de bois
DE102019114038A1 (de) * 2019-05-26 2020-11-26 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung und Verfahren zur Herstellung eines Vlieses
DE102019114037A1 (de) * 2019-05-26 2020-11-26 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung und Verfahren zur Herstellung eines Vlieses
CN116160527B (zh) * 2023-02-01 2023-09-05 邳州市新世界木业有限公司 一种木质纤维加工用蒸汽***装置

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ATE301029T1 (de) 2005-08-15
DE10025177B4 (de) 2004-04-15
AU2001267458A1 (en) 2001-12-03
CA2411051C (fr) 2007-04-24
DE10025177A1 (de) 2001-12-13
DE50106979D1 (de) 2005-09-08
EP1283766A1 (fr) 2003-02-19
WO2001089783A1 (fr) 2001-11-29
PL365953A1 (en) 2005-01-24
CA2411051A1 (fr) 2002-11-22

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