EP3294512B1 - Dispositif et procédé pour la production continue de matériaux - Google Patents

Dispositif et procédé pour la production continue de matériaux Download PDF

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Publication number
EP3294512B1
EP3294512B1 EP16722200.9A EP16722200A EP3294512B1 EP 3294512 B1 EP3294512 B1 EP 3294512B1 EP 16722200 A EP16722200 A EP 16722200A EP 3294512 B1 EP3294512 B1 EP 3294512B1
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EP
European Patent Office
Prior art keywords
magnetrons
power
control
production
conveyor belt
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EP16722200.9A
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German (de)
English (en)
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EP3294512A1 (fr
Inventor
Reto PATTIS
Helmut Bauser
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Dieffenbacher GmbH Maschinen und Anlagenbau
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Dieffenbacher GmbH Maschinen und Anlagenbau
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Publication of EP3294512A1 publication Critical patent/EP3294512A1/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
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • 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
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Definitions

  • the invention relates to a device for the continuous production of materials, preferably for the production of material plates of substantially non-metallic material, according to the preamble of claim 1.
  • the invention further relates to a process for the continuous production of materials, preferably for the production of material plates of substantially non-metallic material, according to the preamble of claim 10.
  • This particle plate consists of at least three layers, the outer layers are made of fine material, whereas the middle layer consists of coarser material.
  • the plate basically with low Produce material content, with only a higher proportion of material to be scattered at the locations of the plate, which is later required for the incorporation of fittings or fasteners to make connections with other parts.
  • a basis weight profile is produced across the width or length of the nonwoven, which of course can also generate different nonwoven heights in consequence.
  • the density does not necessarily have to be different. If, however, the nonwoven is pressed uniformly across the width, or passes through a press nip which is uniform across the width, it will have different densities due to the different basis weights.
  • a method and apparatus for heating a web before a press is known from EP 2 247 418 B1 known.
  • 20 to 300 microwave generators with a magnetron power of 3 to 50 kW and a frequency range of 2400 - 2500 MHz are to be arranged in a continuous furnace per press surface side.
  • the large number of generators and the frequency used, which are necessary for the device and the method advantageously result in a small size of the radiation openings in the boiler room at the microwave frequency used.
  • the disclosure teaches the skilled person only that a plurality of microwave generators are used with the same power and should be controlled accordingly evenly.
  • the radiation room It is also generally known to homogenize the microwaves within a boiler room, hereinafter called the radiation room, by means of suitable devices. Such devices are for example metallic rotary blades. Alternatively, the material to be heated can stand on rotating turntables. Even in a continuous furnace charged with several microwave generators, hereafter called magnetrons, such a homogenization of the radiation within the radiation space may be useful, even if the material to be heated by means of a conveyor belt continuously through the Radiation space is performed.
  • suitable devices are for example metallic rotary blades.
  • the material to be heated can stand on rotating turntables. Even in a continuous furnace charged with several microwave generators, hereafter called magnetrons, such a homogenization of the radiation within the radiation space may be useful, even if the material to be heated by means of a conveyor belt continuously through the Radiation space is performed.
  • the above device also has the disadvantage that no width adjustment is provided, since it is assumed that in addition to the loss of radiation in the absorbers, the radiation is predominantly and substantially evenly absorbed in the material.
  • the above device has the disadvantage that different material widths and heights can be driven by the proposed width and height adjustment of the locks easily in and out of the continuous furnace, but at narrow widths and at the same time large volume of the material, the power loss of the continuous furnace is disproportionate is high.
  • CN202448195U discloses the features of the preambles of claims 1 and 10.
  • the object of the present invention is to develop the device and the method so that the disadvantages described above can be avoided.
  • the probability of failure of the device can be reduced by an emergency program in case of failure of one or a few magnetrons is established.
  • the invention is based on a device for the continuous production of materials, preferably for the production of material plates of substantially non-metallic material, comprising at least one continuous furnace for the continuous heating of material on an endlessly circulating conveyor belt and further comprises a downstream in the production direction press, wherein the continuous furnace has a plurality of magnetrons for generating electromagnetic waves and waveguides with outlet openings for feeding the waves into a radiation space.
  • the stated object is achieved for the device in that a control or regulating device is arranged for controlling individual or grouped magnetrons in order to operate them with different powers for producing a differentiated power profile, preferably in and / or transversely to the production direction.
  • the material is preferably present as an endless strand on the conveyor belt and has two surface sides, wherein one of these surface sides rests on the conveyor belt and has at least two edges in the production direction.
  • outlet openings of the waveguide are arranged in at least one substantially parallel plane to the conveyor belt. There may be several levels provided with different distances to the material.
  • rectangular and / or oval waveguides are preferably arranged.
  • the corresponding outlet openings can longitudinally and transversely to the direction of production in rows R1, ..., R n, R n + 1 and S1, ..., S n, S n + be arranged.
  • the surfaces of the outlet openings of the adjacent tracks S n , S n + 1 spaced along the production direction are arranged adjacent or overlapping.
  • control or regulating device starting from the material and / or the product to be produced suitably retrieve given power profiles and set in a continuous furnace.
  • the industrial production plants in question are usually suitable for producing a variety of different products as well as different sizes of a single product.
  • the operator or an automated detection of the incoming material via a control or regulating device can specify a retrievable default setting of the magnetrons.
  • It can be at least one measuring device for testing the material and / or the product in operative connection with the control or Be arranged control device for controlling or regulating the power of the magnetrons or the power profile. It is particularly advantageous if the measuring device has sections over the width, particularly preferably in the same tracks as the continuous furnace magnetrons / outlet openings, is adjustable. Additionally or alternatively, further preceding devices of the production facility or the control station of the plant can be arranged in operative connection with the control or regulating device for controlling or regulating the power of the magnetrons or the power profile.
  • the measuring device will lift before and after the continuous furnace on the basis weight, the density, the humidity, the temperature, the volume and / or the position of the material on the conveyor belt.
  • the same or similar parameters are measured by the measuring device after the press.
  • Each existing measuring device transmits the measured values to the control or regulating device for automated comparison of the actual values with the predetermined desired values.
  • the temperature difference .DELTA.T before and after the continuous furnace of importance and this particular also differentiated across the width at different heights and / or basis weights
  • the material can change its size and in particular its position on the conveyor belt, wherein so far only the lock technology at the inlet and at the outlet of the continuous furnace have been controlled.
  • an influence on the existing magnetrons can now be taken even with a relatively narrow arranged on the conveyor belt material by, for example, operated only the magnetrons above the material.
  • the magnetrons, under whose outlet openings no material is transported, are switched off.
  • possibly outside tracks of the magnetrons are automatically removed. or turned on.
  • magnetrons with a power of 0.5 to 20 kW, preferably used up to 6 kW.
  • a passive and / or active distribution means for the electromagnetic waves can be arranged in the radiation space.
  • a distribution means is known as a wobbler (engl.) In the art and usually a sheet of geometric shape, which is arranged in an active version movable (rotatable).
  • means for activating or deactivating the distribution means are arranged in the continuous furnace.
  • these means may be suitable for covering or removing the distribution medium from the radiation chamber.
  • the drive, or its control, of the conveyor belt or a measuring device for the speed of the forming belt be arranged in operative connection with the control and regulating device. This should be used to perform a balance between the power clocking and / or the use timing of the magnetrons versus the feed of the material. It should be avoided that caused by the intermittent operation of the magnetron local overheating or insufficiently heated areas in the material.
  • the magnetrons of the tracks arranged outside the material can be correspondingly arranged to be reducible or switchable in their power.
  • the solution of the problem posed for a method is that the magnetrons are controlled individually or in groups with different powers in order to provide them with a differentiated power profile, preferably in and / or transverse to the production direction to operate.
  • the magnetrons are driven by a control or regulating device. This is particularly suitable for retrieving and setting predefined power profiles based on the material and / or the product to be produced.
  • the material and / or the product can be checked by means of at least one measuring device, preferably in sections longitudinally and / or transversely, and the corresponding measured values of the control or regulating device for controlling or regulating the magnetrons or the power profile can be transmitted.
  • a passive and / or active distribution means for the electromagnetic waves in the radiation space can be deactivated during the heating of the material. This deactivation can be carried out, for example, by covering or by moving out of the radiation space.
  • a power profile of the magnetrons is adjusted so that sets a higher temperature of the material, starting from the edges to the longitudinal center line of the material. This is particularly desirable when due to the material, the binder, the moisture in or on the material forms a flow during the pressing, which is directed towards the narrow sides of the material.
  • the material is additionally heated by the heated fluid flow in the vicinity of the edges. It can now cause the edges of the material to overheat on a uniformly heated material. To avoid this, the edges are heated less strongly.
  • At least one track on the edge, ie the outside of the track, is correspondingly reduced or switched off in its power.
  • magnetrons preferably entire rows (Rx) of magnetrons, may be arranged which are not used in regular operation and can be connected in the event of the failure of a magnetron.
  • control or regulating device is suitable for detecting via a monitoring or detection at the magnetrons or their power consumption, whether the function is guaranteed and will automatically connect more magnetrons with the necessary power, if not.
  • the control or regulating device is suitable for applying local surface weight increases, in particular surface weight increases occurring transversely to the production direction, in the material via a path / time tracking in the radiation space with a higher power and to control the magnetrons in a corresponding temporal and geometric arrangement.
  • the device is suitable for carrying out the method but also independently operable.
  • FIG. 1 shows above a schematic side view and below an associated schematic plan view of a device with a production direction 15 through a continuous furnace 1 and a continuously operating press 2 with two endlessly rotating and the strand-like material 3 by the press 2 pulling steel strips.
  • the material 3 is transported on a conveyor belt 10 from the left through the continuous furnace 1, there heated in a radiation space 14, passed the press 2 and there pressed into a product 8 and cured.
  • the material 3 to apply microwaves. This may be necessary in particular if, due to the lack of penetration of the microwaves from one side, the material 3 can not sufficiently heat through or if the power for heating purposes is to be increased.
  • the continuous furnace 1 has around the radiation space 14 in addition to a shielding housing 11 nor absorber 12, the inlet and outlet side absorb excess microwaves and prevent the leakage of microwaves from the continuous furnace 1 in addition to the only indicated there locks.
  • the locks and / or the absorber 12 are height and / or width adjustable.
  • the device according to the invention has a control or regulating device 17 which is capable of controlling the majority of magnetrons 4 for the production of microwaves in their power.
  • the control or regulating device 17 can control individual or grouped magnetrons 4.
  • the control or regulating device 17 is in operative connection with a storage device and / or a computing unit that already contains prescriptions or predetermined frame data for setting the continuous furnace 1 or the magnetrons 4.
  • calculation bases can be stored here on the basis of which the control or regulating device 17, in conjunction with inputs of the operating personnel with respect to the type of material 3 and / or the product 8 to be produced, realizes proposals or settings with which the continuous furnace 1 in conjunction with the following Press 2 can work in an optimal and harmless for the material 3 area.
  • measuring devices 16 can be arranged in front of the continuous furnace 1, measuring devices 18 after the continuous furnace 1 and in front of the press 2 for the material 3 in the production direction.
  • measuring devices 20 for the product 8 can be provided to arrange a measuring device 20 for the product 8 at the outlet of the press 2. All these mentioned or possibly further measuring devices have in common that they are in operative connection with the control or regulating device 17 and can transmit their measurement results to them. These measurements are the basis for control or regulating algorithms and causes in the control or regulating device 17 the generation and transmission of corresponding control commands to the continuous furnace 1 or the magnetrons 4 arranged there.
  • further preceding devices of the production site or the control station of the installation for transmitting data may be in operative connection with the control or regulating device 17.
  • These measuring devices 16, 18, 20 may preferably be suitable for making measurements in sections over the width 19 of the material 3 or of the product 8.
  • the material 3 is applied to the conveyor belt 10 in a height 19 low compared to the height.
  • the material 3 is pressed in this width 19 in the subsequent press 2 to the product 8.
  • the material 3 is therefore preferably strand-shaped, has an upper and a lower surface side, wherein a surface side rests on the conveyor belt 10 and forms two edges 7.
  • the position of the edges 7 on the conveyor belt 10 is known to vary, in particular by the belt during the task of the material 3 on the conveyor belt 10, by changes in the trimming or product conversion.
  • the later band profile in the area of the continuous furnace 1 can lead to the fact that the conveyor belt 10 is not always guided in the same position through the continuous furnace 1.
  • FIG. 2 shows a plan view in the production direction 15 from bottom to top on the lid 22 of the radiation space 14 in a section X2-X2 FIG. 3
  • FIG. 3 shows the corresponding view of a section X3-X3 through the radiation space 14 after FIG. 2 , where the Production direction 15 is directed to the drawing plane.
  • the magnetrons 4 are preferably arranged separately in a cabinet 13 and laterally of the radiation space 14 for better accessibility, in particular for maintenance or replacement purposes.
  • the cabinet 13 has openings through which the waveguides 5 connected to the magnetrons 4 guide the microwaves to the radiation space 14 and enter them there via the outlet openings 6, corresponding to openings in the lid 22 into the radiation space 14.
  • the outlet openings 6 are arranged in several rows R (R n , R n + 1 ) transversely to the production direction 15 and tracks S (S n , S n + 1 ) along the production direction 15.
  • the manner of arrangement of the outlet openings 6 on the radiation space 14 is dependent on the use of the continuous furnace 1, the frequency of the microwave radiation, which has an influence on the size of the waveguide 5 and thus on the outlet openings 6, and in particular of the It may therefore be possible to use only a small number of magnetrons 4, wherein at least two must be arranged. These then form a row in any direction. Preferably, however, it is provided that at least a plurality of magnetrons 4 are arranged in a row R and can be controlled by means of the control or regulating device 17 with a differentiated power profile 9. Already a row R, if necessary not necessarily transverse but angular (except parallel) to the production direction allows the differentiated heating of the material 3 across the width 19.
  • a differentiated heating profile in the material 3 or a differentiated power profile 9 of the magnetrons 4 can be controlled.
  • the possibilities are manifold.
  • a second radiation space 14 ' may be provided which first radiation space 14 with respect to the material 3 opposite and thus arranged below the conveyor belt 10.
  • This can preferably have the same configuration of magnetrons / waveguides / outlet openings as the radiation space 14.
  • the material 3 to be heated here has a predetermined width 19 and lies on the moving through the continuous furnace 1 conveyor belt 10.
  • the material 3 is formed substantially strand-shaped has two surface sides and one edge 7 each.
  • FIG. 4 for a performance profile 9 will be as in FIG. 3 represented a material 3 of a width 19 through the radiation space 14 promoted.
  • the number of tracks S is equal to 16.
  • the magnetrons 4 of the tracks S 3 , S 4 left and S 13 , S 14 right of the outlet openings 6, which are arranged on the edge 7 of the material 3, with only half the power required L 40% operated.
  • the subsequent rows Rn + 1 can correspondingly map the same power profile 9 as in FIG FIG. 4 shown.
  • the use of a plurality of rows R and tracks S in a method for protecting the magnetrons 4 by alternately switching on and off of the magnetrons 4 is possible. Turning on and off does not describe the power timing that is usually used to set the power L of a magnetron, but pausing the magnetrons to maintain performance and prevent overheating, ie, use timing.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Claims (20)

  1. Dispositif pour la fabrication en continu de matériaux, de préférence pour la fabrication de panneaux de matériau faits d'un matériau non métallique pour l'essentiel, comprenant
    un four à passage continu (1) pour le chauffage en continu de matériau (3) sur une bande transporteuse (10) tournant sans fin et
    une presse (2) montée à sa suite dans le sens de production (15),
    dans lequel le four à passage continu (1) comporte plusieurs magnétrons (4) pour produire des ondes électromagnétiques et des guides d'ondes (5) avec des ouvertures de sortie (6) pour amener les ondes dans un espace d'exposition au rayonnement (14), les ouvertures de sortie (6) étant disposées longitudinalement et transversalement par rapport au sens de production (15) en rangées (R) et en pistes (S),
    caractérisé en ce qu'un dispositif de commande et de régulation (17) est prévu pour commander les magnétrons (4) individuellement ou par groupes afin de les faire fonctionner à différentes puissances (L) pour obtenir un profil de puissance différencié (9), de préférence dans le sens de production (15) ou transversalement par rapport à celui-ci.
  2. Dispositif selon la revendication 1, caractérisé en ce que, lorsque les ouvertures de sortie sont disposées de façon décalée dans le sens de production (15), les surfaces des ouvertures de sortie (6) des pistes (S) voisines Sn, Sn ± 1 sont espacées, contiguës ou se chevauchent dans le sens longitudinal par rapport au sens de production (15).
  3. Dispositif selon une ou plusieurs des revendications précédentes, caractérisé en ce que le dispositif de commande et de régulation (17) est adapté pour appeler des profils de puissance (9) sur la base du matériau (3) et/ou du produit (8) à fabriquer et pour les régler dans le four à passage continu (1).
  4. Dispositif selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'au moins un dispositif de mesure (16, 18, 20) pour le contrôle, de préférence par tronçons, du matériau (3) et/ou du produit (8) ou d'autres dispositifs d'amont de l'unité de production ou le poste de commande de l'installation sont en liaison active avec le dispositif de commande et de régulation (17) pour commander ou réguler la puissance (L) des magnétrons (4) ou le profil de puissance (9).
  5. Dispositif selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'entraînement de la bande transporteuse (10) ou un dispositif de mesure de la vitesse de la bande transporteuse (10) est en liaison active avec le dispositif de commande et de régulation (17), en particulier pour ajuster la fréquence d'activation de la puissance et/ou la fréquence de fonctionnement des magnétrons (4) par rapport à l'avance du matériau (3).
  6. Dispositif selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'afin d'adapter le four à passage continu (1) à différentes largeurs (19) et/ou à des positions variables du matériau (3) sur la bande transporteuse (10), les magnétrons (4) des pistes (S) disposées à l'extérieur du matériau (3) peuvent avoir une puissance (L) réduite ou être désactivés.
  7. Dispositif selon une ou plusieurs des revendications précédentes, caractérisé en ce qu'afin d'augmenter la redondance du dispositif, d'autres magnétrons, de préférence des rangées (Rx) entières de magnétrons, sont prévus pour pouvoir être activés en cas de défaillance de magnétrons.
  8. Dispositif selon une ou plusieurs des revendications précédentes, caractérisé en ce que le dispositif de commande et de régulation (17) est adapté pour la surveillance ou la reconnaissance de restrictions de la puissance de magnétrons défectueux et active automatiquement la puissance nécessaire ou d'autres magnétrons.
  9. Dispositif selon une ou plusieurs des revendications précédentes, caractérisé en ce que le dispositif de commande et de régulation (17) est adapté pour appliquer une puissance (L) plus élevée à zones de poids par unité de surface augmenté dans le matériau (3), en particulier des zones de poids par unité de surface augmenté transversalement par rapport au sens de production, et pour activer les magnétrons (4) de la manière correspondante.
  10. Dispositif pour la fabrication en continu de matériaux, de préférence pour la fabrication de panneaux de matériau faits d'un matériau non métallique pour l'essentiel, comprenant
    un four à passage continu (1) pour le chauffage en continu de matériau (3) sur une bande transporteuse (10) tournant sans fin et
    une presse (2) montée à sa suite dans le sens de production (15),
    dans lequel le four à passage continu (1) comporte plusieurs magnétrons (4) pour produire des ondes électromagnétiques et des guides d'ondes (5) avec des ouvertures de sortie (6) pour amener les ondes dans un espace d'exposition au rayonnement (14), les ouvertures de sortie (6) étant disposées longitudinalement et transversalement par rapport au sens de production (15) en rangées (R) et en pistes (S),
    caractérisé en ce que les magnétrons (4) sont commandés individuellement ou par groupes à différentes puissances (L) par un dispositif de commande et de régulation (17) afin de les faire fonctionner selon un profil de puissance différencié (9), de préférence dans le sens de production (15) et/ou transversalement par rapport à celui-ci.
  11. Procédé selon la revendication 10, caractérisé en ce que le dispositif de commande et de régulation (17) est adapté pour appeler et régler des profils de puissance (9) prédéterminés sur la base du matériau (3), de la structure du matériau (3) et/ou du produit (8) à fabriquer.
  12. Procédé selon la revendication 10, caractérisé en ce qu'au moins un dispositif de mesure (16, 18, 20) vérifie le matériau (3) et/ou le produit (8), de préférence par tronçons dans le sens longitudinal et/ou transversal, et les valeurs de mesure correspondantes sont transmises au dispositif de commande et de régulation (17) pour la commande ou la régulation des magnétrons (4) et du profil de puissance (9).
  13. Procédé selon la revendication 10, caractérisé en ce que la vitesse de la bande transporteuse (10) est déterminée à l'aide de l'entraînement de la bande transporteuse (10) ou d'un dispositif de mesure et la valeur de mesure est transmise au dispositif de commande et de régulation (17), en particulier pour ajuster la fréquence d'activation de la puissance et/ou la fréquence de fonctionnement des magnétrons (4) par rapport à l'avance du matériau (3).
  14. Procédé selon la revendication 10, caractérisé en ce que, lorsqu'un matériau (3) a un profil de poids par unité de surface différent dans la largeur (19), un profil de puissance (9) correspondant des magnétrons (4) est appliqué transversalement par rapport au sens de production (15), les zones de poids par unité de surface différent étant exposées à des ondes électromagnétiques de puissance différente.
  15. Procédé selon la revendication 10, caractérisé en ce que, lors de l'utilisation de bois ou d'un matériau semblable à du bois (3) ayant un profil de poids par unité de surface différent dans la largeur (19), les magnétrons (4) possédant des ouvertures de sortie (6) situées sensiblement au-dessus des zones de plus fort poids par unité de surface fonctionnent à une plus grande puissance (L) que les magnétrons (4) possédant des ouvertures de sortie (6) situées au-dessus des zones de plus faible poids par unité de surface.
  16. Procédé selon la revendication 10, caractérisé en ce que dans une disposition de plusieurs rangées (R) de magnétrons (4), en cas de défaillance d'un magnétron (4) et de l'apport d'énergie de celui-ci dans le matériau (3), un ou plusieurs autres magnétrons (4) des pistes (S) correspondantes et/ou voisines compensent la défaillance en augmentant leur puissance (L) ou, si les magnétrons (4) sont déjà à la puissance (L) maximale, toute la rangée (R) est mise hors circuit pour compenser la défaillance et la vitesse de la bande transporteuse (10) est réduite en conséquence.
  17. Procédé selon la revendication 10, caractérisé en ce que si le matériau (3) a des largeurs (19) différentes et/ou si la position du matériau (3) varie sur la bande transporteuse (10), au moins une piste (S) de magnétrons (4) située sur le bord (7) fonctionne à une puissance (L) réduite ou est désactivée.
  18. Procédé selon la revendication 10, caractérisé en ce qu'afin d'augmenter la redondance du dispositif, il est prévu d'autres magnétrons, de préférence des rangées (Rx) entières de magnétrons, qui ne sont pas utilisés en fonctionnement normal et peuvent être activés en cas de défaillance d'un magnétron.
  19. Procédé selon la revendication 10, caractérisé en ce que le dispositif de commande et de régulation (17) assure une surveillance et une reconnaissance automatisées des magnétrons ou de leur puissance absorbée et l'activation de la puissance nécessaire des autres magnétrons s'effectue automatiquement.
  20. Procédé selon la revendication 10, caractérisé en ce que le dispositif de commande et de régulation (17) est adapté pour appliquer une puissance (L) plus élevée à des zones de poids par unité de surface augmenté dans le matériau (3), en particulier des zones de poids par unité de surface augmenté transversalement par rapport au sens de production, par un suivi sur la distance et dans le temps, et pour activer les magnétrons (4) selon une disposition temporelle et géométrique correspondante.
EP16722200.9A 2015-05-11 2016-05-11 Dispositif et procédé pour la production continue de matériaux Active EP3294512B1 (fr)

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DE102015107374.9A DE102015107374A1 (de) 2015-05-11 2015-05-11 Vorrichtung und Verfahren zur kontinuierlichen Herstellung von Werkstoffen
PCT/EP2016/060574 WO2016180886A1 (fr) 2015-05-11 2016-05-11 Dispositif et procédé pour la production continue de matériaux

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DE102017104064B4 (de) 2017-02-27 2023-02-02 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren zum Betreiben eines Durchlaufofens und Durchlaufofen
CN109352894A (zh) * 2018-11-02 2019-02-19 郑州峰泰纳米材料有限公司 一种三聚氰胺泡绵均匀性发泡装置
JP7427694B2 (ja) * 2020-02-07 2024-02-05 株式会社Ｎｔｔドコモ 端末、基地局、通信方法及びシステム
EP4406712A1 (fr) * 2023-01-30 2024-07-31 Hitachi Energy Ltd Dispositif et procédé de fabrication de carton comprimé

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DE102015107374A1 (de) 2016-11-17
CN107580539B (zh) 2024-07-05
EP3294512A1 (fr) 2018-03-21
WO2016180886A1 (fr) 2016-11-17
US20180141234A1 (en) 2018-05-24
CN107580539A (zh) 2018-01-12
US10967538B2 (en) 2021-04-06

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