EP3625015B1 - Trémie de dosage et poste de formage à utiliser dans la fabrication de panneaux de particules ou de panneaux de fibres et procédé d'introduction de particules dans la trémie de dosage - Google Patents

Trémie de dosage et poste de formage à utiliser dans la fabrication de panneaux de particules ou de panneaux de fibres et procédé d'introduction de particules dans la trémie de dosage Download PDF

Info

Publication number
EP3625015B1
EP3625015B1 EP18726443.7A EP18726443A EP3625015B1 EP 3625015 B1 EP3625015 B1 EP 3625015B1 EP 18726443 A EP18726443 A EP 18726443A EP 3625015 B1 EP3625015 B1 EP 3625015B1
Authority
EP
European Patent Office
Prior art keywords
dosing hopper
particle
particles
hopper
impinging surface
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
EP18726443.7A
Other languages
German (de)
English (en)
Other versions
EP3625015A1 (fr
Inventor
Matthias HEITKAMP
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dieffenbacher GmbH Maschinen und Anlagenbau
Original Assignee
Dieffenbacher GmbH Maschinen und Anlagenbau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dieffenbacher GmbH Maschinen und Anlagenbau filed Critical Dieffenbacher GmbH Maschinen und Anlagenbau
Publication of EP3625015A1 publication Critical patent/EP3625015A1/fr
Application granted granted Critical
Publication of EP3625015B1 publication Critical patent/EP3625015B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • 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
    • 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
    • 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
    • B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material

Definitions

  • the invention relates to the field of manufacturing of wood-based panels, primarily particleboards or fiberboards. More particularly, the invention relates to an improved dosing hopper and an improved forming station for use in the manufacturing of particleboards or fiberboards, in particular high, medium and low density fiberboards HDF, MDF and LDF. The invention further relates to a method for filling particles into a dosing hopper.
  • particleboards or fiberboards there are used predominately flowable or free-flowing particles of differing sizes containing lignocellulose and/or cellulose, such as fibers, chips and the like.
  • these particles are discharged out of a dosing or metering hopper and delivered to a spreading head as a spreading apparatus, by means of a forming station.
  • the particles, chips or fibers are spread to form a fleece or mat onto a continuously running forming belt, and are then formed to a finished panel in a subsequent pressing station, as is known for example from documents US 4,948,322 and US 6,695,605 .
  • DE 1220597 B , DE 19916448 A1 and US 4703783 A disclose dosing hoppers comprising a single inlet opening.
  • FIG. 1 wooden particles, such as chips or fibers provided with a binder agent, are transported to a first cyclone 10, an outlet of which is connected to a first inlet 21 of an X-shaped mixing and distributing device 20.
  • a flap 25 for switching the particle stream direction.
  • the flap 25 can be actuated by an actuator 26 such as to be positioned in a first position, in which the particle stream entering through the first inlet 21 is guided to a first outlet 23 of the mixing and distributing device 20, and a second position, in which the particle stream entering through the first inlet 21 is guided to a second outlet 24 of the mixing and distributing device 20.
  • the particle stream is guided to exit the mixing and distributing device 20 through the first outlet 23 and falls onto a belt conveyor 30 also referred to as reject band for the particle stream to be transported to a dump collecting bin 35.
  • a belt conveyor 30 also referred to as reject band for the particle stream to be transported to a dump collecting bin 35.
  • This position may be used also for example when shutting down the forming station, respectively the entire manufacturing plant, e.g. in case of preparation for maintenance.
  • the forming station and the entire manufacturing plant can thus be emptied from particles by dumping the particles still held in the cyclones 10, 12 into the dump collecting bin 35.
  • the flap 25 is positioned in the second position so that the particle stream is guided to exit the mixing and distributing device 20 through the second outlet 24, into a double-flap distributing unit 40 and through this distributing unit 40 into an inlet opening 51 of a dosing hopper 50.
  • Fig. 2 shows the double-flap distributing unit 40 in more detail.
  • the double-flap distributing unit 40 comprises two adjustable flaps 41, 42, which are actuated by an actuator 45 such as to adjustably divert the position of the particle stream in a sideward direction, i.e. a direction perpendicular to the lengthwise direction of the dosing hopper 50.
  • the double-flap distributing unit 40 can effectively widen the width of the particle stream so as to cover essentially the entire width of the dosing hopper 50, respectively of the inlet opening 51 and thus ensure a substantially uniform filling of the dosing hopper 50 in the widthwise direction.
  • the particle stream exiting the double-flap distributing unit 40 passes through the inlet opening 51 of the dosing hopper and impinges onto a plate element, also referred to as impinging table 52 that is arranged beneath the inlet opening 52 inside the dosing hopper 50.
  • a plate element also referred to as impinging table 52 that is arranged beneath the inlet opening 52 inside the dosing hopper 50.
  • the striper device 53 comprises striper elements 54, such as e.g. bars, paddles, rakes or the like, that are interlinked by e.g. chains 55 or steel cables that are guided around two drive rollers 56.
  • the drive rollers 56 are rotatably driven in continuous fashion such as to move the striper elements 54 as indicated by the arrows.
  • the striper elements 54 of the striper device 53 pass above the table 52 in the direction toward the discharging end of the dosing hopper 50, and pass beneath the table 52 in the direction toward the rear end of the dosing hopper 50.
  • the upper layer of the accumulated particle material is thus evened out, and it can be prevented that patches having a higher density, so-called pockets, occur within the stored particles, or that the upper particle layer exhibits irregularities transversely and longitudinally to the longitudinal axis of the dosing hopper 50.
  • Particles are continuously discharged out of the dosing hopper 50 with the aid of a floor belt 57 and discharge rollers 58.
  • the dosing hopper 50 has a width corresponding to at least the maximum board resp. panel width that is to be produced.
  • the discharged particles are then transported through an outlet 59 to a spreading head 60, in order to then be spread onto a forming belt 70.
  • Spreading rolls of a certain width are arranged in the spreading head, whereby these spreading rolls distribute the particles, chip or fibers to a fleece or mat 80 of a certain width onto the forming belt 70.
  • the fleece or mat 80 is then trimmed in height by means of a scalper roller 90, and the scalped off, and the excess particle material is recovered and transported to a second cyclone 12, which discharges the recovered particle material into the second inlet 22 of the mixing and distributing device 20.
  • the stream of recovered particles is mixed with the stream of new particles discharged from the first cyclone 10 into the first opening 21.
  • the respective streams of new and recovered particles are thus effectively mixed within the distributing device 20 and are fed jointly into the dosing hopper 50, as described above.
  • This type of forming station offers the advantage of allowing to form high quality, and in particular highly uniform fleeces or mats at high levels of productivity.
  • this type of forming station typically requires large and voluminous, and hence costly, steel frame installations for carrying the various components.
  • the numerous components also require considerable and costly maintenance.
  • a dosing hopper for use in the production of boards of wood-based material, comprising: a plurality of inlet openings arranged on an upper side of the dosing hopper and respectively adapted to receive a stream of lignocellulose and/or cellulose containing particles, the plurality of inlet openings comprising at least two inlet openings, each inlet opening being spaced from an adjacent inlet opening in a lengthwise direction of the dosing hopper; an impinging surface arranged inside and at an upper portion of the dosing hopper, wherein impinging surface is positioned beneath the plurality of inlet openings and spans at least over the cumulative length of the plurality of inlet openings so that the particles of each particle stream entering through the plurality of inlet openings impinge on the impinging surface; and conveying means adapted for moving the particles of the plurality of particle streams having impinged on the impinging surface in a direction towards a discharging end of the dosing hopper to
  • a forming station for use in the production of boards of wood-based material, comprising the dosing hopper; and a plurality of cyclones arranged above the dosing hopper, the plurality of cyclones comprising at least two cyclones, wherein each cyclone is connected to a respective one of the inlets of the dosing hopper.
  • the impinging surface may be constituted by a table
  • the conveying means may be constituted by a striper device comprising a plurality of striper elements adapted to be driven to move in a continuous movement, the movement encircling the table.
  • the conveying means may be constituted by a belt conveyor device, wherein the belt of the belt conveyor device constitutes the impinging surface.
  • the different particle streams are fed separately to the dosing hopper and are mixed inside the dosing hopper due to the action of the conveying means, in particular the action of the striper elements striping over the table, onto which the different particle streams impinge. It is therefore no longer necessary to provide separate means for joining and mixing the particle streams upstream of the dosing hopper, which allows positioning the cyclones at a lower height almost directly above the dosing hopper. In this way, the overall height of a forming station may be reduced by up to 15 m. Accordingly, the forming station can be constructed with less components and also less height, leading to a large reduction in masses that have to be carried and supported by steel frames, which in turn enables to also reduce the masses of the steel frames.
  • the conveying means are further adapted to be operated in a dumping mode, in which the particles of the plurality of particle streams having impinged on the impinging surface are moved in the direction towards the rear end of the dosing hopper for the purpose of being dumped in a dump collecting bin. It is further preferred that the conveying means and the impinging surface both extend through the rear end opening to an outside of the dosing hopper, and the conveying means are preferably adapted to, in the dumping mode, move the particles of the plurality of particle streams having impinged on the impinging surface through the rear end opening and outside of the dosing hopper for being dumped.
  • the dosing hopper may further comprise a moveable rear end that may be pivoted between a closed position and an open position, wherein in the open position of the rear end the conveying means may be operated in the dumping mode for dumping the particles of the plurality of particle streams having impinged on the impinging surface into a dump collecting bin.
  • the conveying means may be operated in the dumping mode for dumping the particles of the plurality of particle streams having impinged on the impinging surface into a dump collecting bin.
  • each cyclone of the plurality of cyclones is connected to the respective corresponding inlet of the dosing hopper via a respective distributing unit.
  • the distributing units may comprise at least one double-flap distributing unit and/or may comprise at least one distributing chute.
  • double-flap distributing units allows for a greater level of control that may be exerted upon how the flow of particles of the corresponding particle stream should be distributed over the width of the dosing hopper.
  • simple chutes has the advantage of a simpler and cheaper design, reducing cost and maintenance efforts required.
  • the at least one distributing chute comprises at least one inclined portion, wherein an inclination of the inclined portion towards a vertical axis is preferably between 5 and 30 degrees, and preferably between 10 and 20 degrees.
  • Angling the chutes, respectively providing inclined walls and portions in the chutes has the effect that the particle stream is made more narrow in the longitudinal direction of the dosing hopper, which has shown positive effects with regard to further improving the quality of mixing the different particle streams.
  • the at least one distributing chute comprises a viewing window or viewing opening allowing to inspect the impinging surface. It is thus possible for an operator to verify the operating status of the dosing hopper.
  • the plurality of cyclones comprises at least two cyclones for newly prepared particle matter, and at least one cyclone for recovered particle matter, wherein the at least one cyclone for recovered particle matter is connected to an inlet opening located between the inlet openings to which the at least two cyclones for newly prepared particle matter are respectively connected.
  • the fraction of recovered particle matter is thus mixed in between the fractions of newly prepared particle matter, resulting in more uniform mixing of the fractions.
  • the forming station further comprises a spreading head for receiving the particles from the outlet of the discharge hopper and spreading the particles to a fleece or mat.
  • a method for filling lignocellulose and/or cellulose containing particles into a dosing hopper of a forming station for the production of panels or boards of wood-based material comprising: providing, by a plurality of cyclones, a plurality of particle streams, supplying each of the plurality of particle streams directly and separately into a respective one of a plurality of inlet openings of the dosing hopper such as to impinge on an impinging surface, the plurality of inlet openings being arranged on an upper side of the dosing hopper, the plurality of inlet openings comprising at least two inlet openings, each inlet opening being spaced from an adjacent inlet opening in a lengthwise direction of the dosing hopper, the impinging surface being arranged inside and at an upper portion of the dosing hopper, the impinging surface being positioned beneath the plurality of inlet openings and spanning at least over the cumulative length of the plurality of inlet openings
  • the method further comprises operating the dosing hopper in a dumping mode, wherein the particles of the plurality of particle streams having impinged on the impinging surface are moved, by means of the conveying means, in the direction towards the rear end of the dosing hopper for the purpose of being dumped in a dump collecting bin.
  • the dosing hopper may preferably be a dosing hopper as described above.
  • the forming station may preferably be a forming station as described above.
  • At least one particle stream may be a particle stream of newly prepared particle matter, and/or at least one particle stream may be a particle stream of returned particle matter, in particular particle matter that is returned from a scalper unit.
  • the method further comprises broadening resp. fanning out one particle stream in a widthwise direction of the dosing hopper by means of a distributing unit that is arranged between the corresponding cyclone supplying the particle stream and the inlet opening that is receiving the stream. More preferably, more than one, and in particular all of the particle streams may be broadened resp. fanned out in this way by means of a corresponding plurality of distributing units.
  • a forming station according to a preferred embodiment will now be described with reference to Fig. 3 .
  • the forming station comprises a dosing hopper 100.
  • the dosing hopper 100 of this embodiment comprises not only one, but a plurality of inlet openings, exemplarily shown as four inlet openings 101, 102, 103, and 104, which each may serve to introduce a respective particle stream into the dosing hopper 100.
  • each of the inlet openings 101, 102, 103, 104 spans over substantially the entire width of the dosing hopper 100 and the inlet openings 101, 102, 103, 104 are arranged at a distance from each other in the longitudinal direction of the dosing hopper 100.
  • the inlets 101, 102, 103, and 104 are arranged in the first half of the length of the dosing hopper 100.
  • the forming station comprises a plurality of cyclones, for example four cyclones 111, 112, 113 and 114, as shown in Fig. 3 , for receiving newly prepared particle material (in Fig. 3 e.g. cyclones 111 and 113) and for receiving recovered particle material (in Fig. 3 e.g. cyclones 112 and 114) that has been recovered and returned from the scalper unit (not shown in Fig. 3 ), and/or may be recovered and returned from air grading or lateral trimming operations performed downstream of the dosing hopper 100, and/or particle material that has been otherwise rejected and removed from the mat or fleece 80 (not shown in Fig. 3 ).
  • the respective particle streams discharged from the plurality of cyclones 111, 112, 113, 114 are fed directly into the plurality of inlet openings 101, 102, 103 and 104 by means of distributing units 121, 122, 123, 124, which respectively serve the purpose of widening the particle streams in the widthwise direction of the dosing hopper 100 so that, at the inlet openings 101, 102, 103, and 104, the particle streams have respectively been widened to extend over substantially the entire width of the inlet openings 101, 102, 103, 104, resp. the entire width of the dosing hopper 100.
  • the distributing units 121, 122, 123, 124 may be realized e.g. as double-flap distributing units, such as e.g. the double-flap distributing unit 40 shown in Fig. 1 .
  • some or all of the distributing units 121, 122, 123, 124 may be realized as chutes, such as the distributing chute 130 (see Fig. 5 ), which may be equipped with metal plates arranged to effect a desired distribution of a particle stream.
  • Chutes may be used for example for particle streams of recovered material, as the relative amount of recovered material will typically be only a small part of the total particle material flow into the dosing hopper 100, and/or may be used also for particle streams of newly prepared particles in case that the maximum width of the boards resp.
  • panels that are to be produced are less than 8 feet in width, preferably less than 6 feet in width, as in this case it will be typically possible also with a chute to achieve a sufficiently uniform particle flow density over the extent of the inlet opening in the widthwise direction of the dosing hopper 100.
  • the plural particle streams are fed into the dosing hopper 100 separately through the respective inlet openings 101, 102, 103, 104, and impinge on the table 105 at different locations corresponding to the different locations of the respective inlet openings 101, 102, 103, 104.
  • the different fractions of particle material that have fallen onto the table 105 are then mixed together due to the action of the striper device 106.
  • recovered particle material stemming from the cyclone 114 and having fallen onto the table 105 at the location beneath the inlet opening 104 is moved by the striper elements of the striper device 106 in the direction towards the discharging end of the dosing hopper 100 and in this course will be moved at a location on the table 105 that is beneath the inlet opening 103.
  • the recovered particle material stemming from the cyclone 114 is mixed with newly prepared particle material that stems from cyclone 113 and falls through the inlet opening 103.
  • the resulting mixture of newly prepared particle material and recovered particle material is then moved by the striper elements to a location beneath the next inlet opening 102, where it is mixed with recovered particle material stemming from cyclone 112, and that resulting mixture is then moved to a location beneath the next inlet opening 101, where it is mixed with newly prepared particle material from cyclone 111 and thereafter is moved to the frontward end of the table 105 to then fall into the particle storage area inside the dosing hopper 100.
  • the dosing hopper 100 also comprises a floor belt 107 and discharge rollers 109 for continuously discharging particles out of the dosing hopper 100, whereby the discharged particles then may be transported through an outlet 110 to a spreading head 60 (not shown in Fig. 3 ) for forming a fleece or mat 80 on a forming belt 70 (not shown in Fig. 3 ).
  • the formed fleece or mat 80 then may be trimmed in height by means of a scalper roller 90 (not shown in Fig. 3 ), and the excess particle material may be recovered and transported to the cyclones 112, 114.
  • the dosing hopper 100 therefore allows different particle streams, and in particular also particle streams of different material fractions, to be supplied separately to the dosing hopper 100, and to perform a mixing and blending of these different particle streams and particle fractions within the dosing hopper 100.
  • Supplying the different particle streams (in particular also of different particle fractions) separately to the dosing hopper 100, and performing mixing and blending inside the dosing hopper 100 also offers the additional advantage that the different particle streams (of same or different particle fractions) may be adjusted separately, e.g. with regard to where, in the widthwise direction of the dosing hopper 100, one wants to have a larger or smaller particle flow density. This has the advantage of offering more control and optimization possibilities for further tuning and optimizing the quality and properties of the boards or panels that are to be manufactured.
  • the striper device 106 also is capable of moving not only in one direction only, but the moving direction may be reversed, as indicated by the double arrows. Also, the length of the striper device 106 as well as the table 105 is extended such that striper device 106 and table 105 both extend through an opening 108 in the rear end of the dosing hopper 100. Accordingly, particle material, that has fallen through the inlet openings 101, 102, 103, 104 and onto the table 105 may be removed, by appropriately controlling the operating direction of the striper device 106, out of the dosing hopper 100 and e.g. dumped into a dump collecting bin 35. With such an arrangement, it is also no longer necessary to provide a separate reject band 30, as shown e.g. in Fig. 1 .
  • the forming station of the embodiment allows to significantly reduce the number of separate devices and units that otherwise would be necessary (cf. Fig. 1 ), and also allows to lower the position of the cyclones 111, 112, 113, 114 as compared to what would have been required in the state of the art, resulting in significant material reductions for steel frames etc.
  • the dosing hopper 100 has been described as comprising a table 105 and a striper device 106
  • the belt conveyor device operates as conveying means for the particles that have fallen through the inlet openings 101, 102, 103, 104 and thus achieves the same effect as the striper device 106
  • the belt of the conveyor belt device acts as a surface onto which the particles impinge upon, thus achieving the same effect as the table 105.
  • the striper device 106 is operable in two directions
  • the present disclosure is not limited in this regard.
  • the striper device 106 operating only in one direction, and thus not supporting a dumping mode.
  • unwanted particle material may be removed from the dosing hopper 100 by known methods, such as by running the dosing hopper 100 empty through normal discharging operation through the spreading head 60 and/or by opening e.g. a door in the rear end of the dosing hopper 100 and removing unwanted particle material directly from the inside of the dosing hopper 100.
  • FIG. 3 shows an embodiment wherein the striper device 106 and the table 105 extend through an opening 108 at the rear end of the dosing hopper 100
  • the skilled person will understand that such is not necessary for implementing a dumping operation as described.
  • Fig. 4 it is also conceivable to equip the dosing hopper 100 with a moveable rear end 115, for example a rear end 115 that swings around a pivot axis, allowing to open the dosing hopper 100 at its rear side when a dumping operation should be performed.
  • a dosing hopper having only a single inlet opening, such as e.g. the dosing hopper 50 of Fig. 1 , with a striper device operable in two directions and thus supporting a dumping mode such as explained with regard to the above described striper device 106, and in this way obviating e.g. the need for a separate belt conveyor such as the reject band 30 of Fig. 1 .

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Road Paving Machines (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (17)

  1. Trémie de dosage (100) pour une utilisation dans la production de panneaux ou de planches de matériau à base de bois, comprenant :
    une pluralité d'ouvertures d'entrée (101, 102, 103, 104) agencées sur un côté supérieur de la trémie de dosage (100) et adaptées respectivement pour recevoir un flux de particules de lignocellulose et/ou de cellulose, la pluralité d'ouvertures d'entrée (101 à 104) comprenant au moins deux ouvertures d'entrée (101, 102, 103, 104), chaque ouverture d'entrée (101, 102, 103, 104) étant espacée d'une ouverture d'entrée (101, 102, 103, 104) adjacente dans une direction de longueur de la trémie de dosage (100) ;
    une surface de frappe (105) agencée à l'intérieur et au niveau d'une portion supérieure de la trémie de dosage (100), dans laquelle la surface de frappe est positionnée au-dessous de la pluralité d'ouvertures d'entrée (101, 102, 103, 104) et couvre au moins la longueur cumulée de la pluralité d'ouvertures d'entrée (101, 102, 103, 104) de sorte que les particules de chaque flux de particules entrant à travers la pluralité d'ouvertures d'entrée (101, 102, 103, 104) frappent la surface de frappe ; et
    des moyens de transport (106) adaptés pour déplacer les particules de la pluralité de flux de particules qui ont frappé la surface de frappe dans une direction vers une extrémité d'évacuation de la trémie de dosage (100) pour ensuite chuter dans un espace destiné à stocker les particules dans la trémie de dosage (100).
  2. Trémie de dosage (100) selon la revendication 1, caractérisée en ce que la surface de frappe est constituée par une table (105), et
    les moyens de transport sont constitués par un dispositif strieur (106) comprenant une pluralité d'éléments strieurs adaptés pour être entraînés en déplacement dans un déplacement continu, le déplacement encerclant la table (105).
  3. Trémie de dosage (100) selon la revendication 1, caractérisée en ce que les moyens de transport sont constitués par un dispositif de transport à courroie, dans laquelle la courroie du dispositif de transport à courroie constitue la surface de frappe.
  4. Trémie de dosage (100) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les moyens de transport sont en outre adaptés pour être mis en fonctionnement dans un mode décharge, dans lequel les particules de la pluralité de flux de particules ayant frappé la surface de frappe sont déplacées dans la direction vers l'extrémité arrière de la trémie de dosage (100) afin d'être déchargées dans une benne de collecte de décharge (35).
  5. Trémie de dosage (100) selon la revendication 4, caractérisée en ce que la trémie de dosage (100) comprend une ouverture (108) à l'extrémité arrière de la trémie de dosage (100), dans laquelle les moyens de transport et la surface de frappe s'étendent tous à travers l'ouverture d'extrémité arrière (108) jusqu'à un extérieur de la trémie de dosage (100), et dans laquelle les moyens de transport sont adaptés, dans le mode décharge, pour déplacer les particules de la pluralité de flux de particules ayant frappé la surface de frappe à travers l'ouverture d'extrémité arrière (108) et l'extérieur de la trémie de dosage (100) pour être déchargées.
  6. Trémie de dosage (100) selon la revendication 4, caractérisée en ce que la trémie de dosage (100) comprend une extrémité arrière déplaçable (115) qui peut être pivotée entre une position fermée et une position ouverte, dans laquelle dans la position ouverte de l'extrémité arrière les moyens de transport peuvent être mis en fonctionnement dans le mode décharge pour décharger les particules de la pluralité de flux de particules ayant frappé la surface de frappe dans une benne de collecte de décharge (35).
  7. Station de formage pour une utilisation dans la production de panneaux ou de planches de matériau à base de bois, comprenant :
    une trémie de dosage (100) selon l'une des revendications 1 à 6, et
    une pluralité de cyclones (111, 112, 113, 114) agencés au-dessus de la trémie de dosage (100), la pluralité de cyclones (111, 112, 113, 114) comprenant au moins deux cyclones (111, 112, 113, 114),
    dans laquelle chaque cyclone (111, 112, 113, 114) est relié à l'une respective des entrées (101, 102, 103, 104) de la trémie de dosage (100).
  8. Station de formage selon la revendication 7, caractérisée en ce que chaque cyclone (111, 112, 113, 114) de la pluralité de cyclones (111, 112, 113, 114) est relié à l'entrée (101, 102, 103, 104) correspondante respective de la trémie de dosage (100) par l'intermédiaire d'une unité de distribution (121, 122, 123, 124) respective.
  9. Station de formage selon la revendication 8, caractérisée en ce que les unités de distribution (121 à 124) comprennent au moins une unité de distribution à double battant (40).
  10. Station de formage selon l'une quelconque des revendications 8 et 9, caractérisée en ce que les unités de distribution (121, 122, 123, 124) comprennent au moins une goulotte de distribution (130).
  11. Station de formage selon la revendication 10, caractérisée en ce que l'au moins une goulotte de distribution (130) comprend au moins une portion inclinée, dans laquelle une inclinaison de la portion inclinée vers un axe vertical est de préférence entre 5 et 30 degrés, et de préférence entre 10 et 20 degrés.
  12. Station de formage selon l'une quelconque des revendications 9 à 11, caractérisée en ce que l'au moins une goulotte de distribution (130) comprend une fenêtre d'observation ou une ouverture d'observation permettant d'inspecter la surface de frappe.
  13. Station de formage selon l'une quelconque des revendications 7 à 12, caractérisée en ce que la pluralité de cyclones (111, 112, 113, 114) comprend au moins deux cyclones (111, 113) pour de la matière particulaire nouvellement préparée, et au moins un cyclone (112) pour de la matière particulaire récupérée, dans laquelle l'au moins un cyclone (112) pour de la matière particulaire récupérée est relié à une ouverture d'entrée (102) située entre les ouvertures d'entrée (101, 103) auxquelles sont reliés respectivement les deux cyclones (111, 113) pour de la matière particulaire nouvellement préparée.
  14. Station de formage selon l'une quelconque des revendications 7 à 13, comprenant en outre une tête d'étalement (60) destinée à recevoir les particules depuis la sortie (110) de la trémie d'évacuation (100) et étaler les particules sur une nappe ou un mat (60).
  15. Procédé de chargement de particules contenant de la lignocellulose et/ou de la cellulose dans une trémie de dosage (100) d'une station de formage pour la production de panneaux ou de planches de matériau à base de bois, le procédé comprenant :
    la fourniture, par une pluralité de cyclones (111, 112, 113, 114), d'une pluralité de flux de particules, l'alimentation en chacun de la pluralité de flux de particules directement et séparément de l'une respective d'une pluralité d'ouvertures d'entrée (101 à 104) de la trémie de dosage (100) de façon à frapper une surface de frappe,
    la pluralité d'ouvertures d'entrée (101, 102, 103, 104) étant agencées sur un côté supérieur de la trémie de dosage (100), la pluralité d'ouvertures d'entrée (101, 102, 103, 104) comprenant au moins deux ouvertures d'entrée (101, 102, 103, 104), chaque ouverture d'entrée (101, 102, 103, 104) étant espacée d'une ouverture d'entrée (101, 102, 103, 104) adjacente dans une direction de longueur de la trémie de dosage (100), la surface de frappe étant agencée à l'intérieur et au niveau d'une portion supérieure de la trémie de dosage (100), la surface de frappe étant positionnée au-dessous de la pluralité d'ouvertures d'entrée (101, 102, 103, 104) et couvrant au moins la longueur cumulée de la pluralité d'ouvertures d'entrée (101 à 104) de sorte que les particules de chaque flux de particules entrant à travers la pluralité d'ouvertures d'entrée (101, 102, 103, 104) frappent la surface de frappe ; et
    le mélange de la pluralité de flux de particules à l'intérieur de la trémie de dosage (100) par déplacement, avec un moyen de transport, des particules de la pluralité de flux de particules ayant frappé la surface de frappe dans une direction vers une extrémité d'évacuation de la trémie de dosage (100) pour ensuite chuter dans un espace destiné à stocker les particules dans la trémie de dosage (100).
  16. Procédé selon la revendication 15, caractérisé en ce que le procédé comprend en outre la mise en fonctionnement de la trémie de dosage (100) dans un mode décharge, dans lequel les particules de la pluralité de flux de particules ayant frappé la surface de frappe sont déplacées, au moyen des moyens de transport, dans la direction vers l'extrémité arrière de la trémie de dosage (100) afin d'être déchargées dans une benne de collecte de décharge (35).
  17. Procédé selon l'une quelconque des revendications 15 et 16, caractérisé en ce que la trémie de dosage (100) est une trémie de dosage (100) selon l'une quelconque des revendications 1 à 6 ; et/ou
    la station de formage est une station de formage selon l'une des revendications 7 à 14 ; et/ou
    la pluralité de flux de particules comprend au moins un flux de particules de matière particulaire nouvellement préparée ; et/ou
    la pluralité de flux de particules comprend au moins un flux de particules de matière particulaire renvoyée ; et/ou
    au moins un flux de particule étant élargi, respectivement dispersé, dans une direction de largeur de la trémie de dosage (100) au moyen d'une unité de distribution (121, 122, 123, 124) agencée entre le ou les cyclones (111, 112, 113, 114) d'alimentation dudit flux de particule et ladite ou lesdites ouvertures d'entrée (101, 102, 103, 104) de réception dudit flux de particule ; et/ou la surface de frappe étant constituée par une table (105), et les moyens de transport étant constitués par un dispositif strieur (106) comprenant une pluralité d'éléments strieurs adaptés pour être entraînés en déplacement dans un déplacement continu, le déplacement entourant la table (105),
    ou la surface de frappe étant constituée par un dispositif de transport à courroie constituant les moyens de transport.
EP18726443.7A 2017-05-19 2018-05-18 Trémie de dosage et poste de formage à utiliser dans la fabrication de panneaux de particules ou de panneaux de fibres et procédé d'introduction de particules dans la trémie de dosage Active EP3625015B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2017701811 2017-05-19
PCT/EP2018/063149 WO2018224292A1 (fr) 2017-05-19 2018-05-18 Trémie de dosage et poste de formage à utiliser dans la fabrication de panneaux de particules ou de panneaux de fibres et procédé d'introduction de particules dans la trémie de dosage

Publications (2)

Publication Number Publication Date
EP3625015A1 EP3625015A1 (fr) 2020-03-25
EP3625015B1 true EP3625015B1 (fr) 2021-08-04

Family

ID=62222673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18726443.7A Active EP3625015B1 (fr) 2017-05-19 2018-05-18 Trémie de dosage et poste de formage à utiliser dans la fabrication de panneaux de particules ou de panneaux de fibres et procédé d'introduction de particules dans la trémie de dosage

Country Status (3)

Country Link
EP (1) EP3625015B1 (fr)
CN (1) CN110678304B (fr)
WO (1) WO2018224292A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220597B (de) * 1963-08-01 1966-07-07 Max Himmelheber Dipl Ing Einrichtung zur Schuettung von Spanholz- od. dgl. -formlingen
DE3669838D1 (de) * 1986-01-20 1990-05-03 Schenck Ag Carl Verfahren zum vergleichmaessigen von streupartikeln sowie eine vorrichtung zur durchfuehrung des verfahrens.
DE3882517D1 (de) 1988-04-06 1993-08-26 Schenck Ag Carl Verfahren und vorrichtung zur erzeugung eines gleichmaessigen abzuwerfenden stromes von partikeln.
DE19916448A1 (de) * 1999-04-12 2000-10-19 Dieffenbacher Schenck Panel Streustation für Faserplatten
DE19916447A1 (de) 1999-04-12 2000-10-19 Dieffenbacher Schenck Panel Formstation
WO2014204386A1 (fr) * 2013-06-17 2014-12-24 Välinge Innovation AB Procédé de fabrication d'un panneau à base de bois et panneau à base de bois de ce type

Also Published As

Publication number Publication date
CN110678304B (zh) 2022-05-03
EP3625015A1 (fr) 2020-03-25
WO2018224292A1 (fr) 2018-12-13
CN110678304A (zh) 2020-01-10

Similar Documents

Publication Publication Date Title
US6833183B2 (en) Apparatus and a method for scattering particles to form a mat
CN106362946B (zh) 风力分撒装置
JPH084780B2 (ja) 粒状材料を分離するための装置
DE19916447A1 (de) Formstation
AU653928B2 (en) Manufacture of bonded particle boards
CN101229650B (zh) 用于在制造材料板的过程中形成散料垫的方法和成型站
CN107443536A (zh) 用于生产材料板的设备和方法
CN102802895A (zh) 在生产木材板的过程中用于生产由至少一个散布的层构成的散布材料垫的方法和设备以及用于在压力机内压制的散布材料垫
CN109225554B (zh) 减少粉末生成的给料破碎机
EP3625015B1 (fr) Trémie de dosage et poste de formage à utiliser dans la fabrication de panneaux de particules ou de panneaux de fibres et procédé d'introduction de particules dans la trémie de dosage
CN210389562U (zh) 散布设备
DE3424687C2 (de) Fahrbare Schüttgut-Reinigungsmaschine, insbesondere zum Reinigen von Bettungsschotter
CN107443537B (zh) 用于生产散布料垫的散布设备和用于运行这种散布设备的方法
CN1532032B (zh) 将散料撒在连续运动的底件上的装置及撒散料装置的料仓
JP2001521455A (ja) 殊に繊維状粒子等の粒子の分別及び散乱のための装置
CA1042406A (fr) Installation de broyage
CN108927882B (zh) 用于生产散布料垫的散布设备和用于运行这种散布设备的方法
CN101041246B (zh) 在制作木质板材的过程中形成散料垫的方法及形成设备
CN111918754B (zh) 用于在散布传送带上产生散料垫的方法
CN2908108Y (zh) 移动带式均化机
DE19916448A1 (de) Streustation für Faserplatten
EP1328383B1 (fr) Tremie doseuse
CN215844107U (zh) 一种振动筛分料装置
DE1084015B (de) Verfahren und Einrichtungen zur Herstellung von Formlingen, Kuchen oder Vliesen aus Holzspaenen od. ae. Schuettguetern
CZ2000674A3 (cs) Způsob plynulé výroby rohože z lignocelulózových částic a zařízení k provádění tohoto způsobu

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191212

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: B27N 3/00 20060101ALI20210212BHEP

Ipc: B27N 3/14 20060101AFI20210212BHEP

Ipc: B27N 3/10 20060101ALI20210212BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210330

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1416507

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210815

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602018021215

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210804

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1416507

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211206

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211104

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211105

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602018021215

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20220506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220531

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220518

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220518

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220518

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230603

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230525

Year of fee payment: 6

Ref country code: DE

Payment date: 20230530

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210804