EP3917739B1 - Dispositif et procédé de production de plaques isolantes - Google Patents

Dispositif et procédé de production de plaques isolantes Download PDF

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Publication number
EP3917739B1
EP3917739B1 EP20701299.8A EP20701299A EP3917739B1 EP 3917739 B1 EP3917739 B1 EP 3917739B1 EP 20701299 A EP20701299 A EP 20701299A EP 3917739 B1 EP3917739 B1 EP 3917739B1
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EP
European Patent Office
Prior art keywords
material mat
zone
press material
sieve
mat
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.)
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Application number
EP20701299.8A
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German (de)
English (en)
Other versions
EP3917739C0 (fr
EP3917739A1 (fr
Inventor
Jochem Berns
Klaus-Peter Schletz
Jochen Dauter
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.)
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Original Assignee
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
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Application filed by Siempelkamp Maschinen und Anlagenbau GmbH and Co KG filed Critical Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Publication of EP3917739A1 publication Critical patent/EP3917739A1/fr
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Publication of EP3917739C0 publication Critical patent/EP3917739C0/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • 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
    • 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
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band

Definitions

  • the invention relates to a device with a first and a second zone for producing insulation or soundproofing panels from a pressed material mat which consists at least partially of lignocellulosic particles wetted with binding agents, wherein the first zone is designed for heating and/or compacting the pressed material mat and the second zone is designed for hardening the pressed material mat with the aid of calibration plates, and wherein driven rotating screening belts are provided in contact with the upper and lower material mat surfaces.
  • the invention further relates to a method for producing insulation or soundproofing panels from a pressed material mat which consists at least partially of lignocellulosic particles wetted with binding agents, using the device mentioned.
  • Such a device is, for example, in the EN 10 2008 039 720 B4 In some cases, such devices are connected in series with pre-compression devices or after-acting pressing devices, e.g. continuous presses, but these are not important within the scope of the invention.
  • the products produced on the device are offered, for example, by SOPREMA GmbH under the name Pavatex or by H. Henselmann GmbH + Co KG under the name Gutex. Binders that can be used include those based on the principle of polycondensation or polyaddition, such as PMDI.
  • DE102007044161 A1 discloses a plant for producing insulation boards consisting of a defibration device, a drying device, a gluing station, a pre-compaction unit, a spreading device with a forming belt arranged underneath and a subsequent calibration and curing unit, wherein the plant comprises several screening belts and pre-pressing belts.
  • insulation boards with densities of 100-240 kg/m 2 should preferably be able to be produced.
  • the sieve belts, or sieves for short, serve to guide the pressed material mat through the device at a desired speed by driving them at the same speed as the mat is to be transported. Steam can be introduced into the pressed material mat from the outside through the sieve, or liquid and air can be removed.
  • active contact also refers to a contact where another circumferential porous belt runs between the pressed material mat and the sieve belt.
  • the inventors have recognised that the load on the sieve belt is particularly high in the compression or steam heating area, i.e. in the first third of the entire device. For this reason, a separate sieve belt is used on both sides of the pressed material mat for the first zone, which can be driven independently of the sieve belts that operate in the curing area, i.e. the second zone.
  • the at least four screening belts each have their own drive.
  • each screen belt can be pushed to its limits.
  • the tension on the screen belt can be recorded using suitable sensors and the results can be incorporated into the drive control system. This means that the drive torque can be kept within a permissible range.
  • Driven deflection rollers are usually used to drive the screen. It is also advantageous if a device for applying steam to the mat of material to be pressed is provided in the first zone and a device for air cooling the mat of material to be pressed is provided at the end of the second zone.
  • the higher speed achievable with the invention allows for higher productivity with slightly higher energy input or slightly increased device length.
  • This provides the energy required to harden the pressed material mat and its binding agent.
  • the steam is designed in such a way that it penetrates at least to the middle of the pressed material mat and heats it. It can also be a steam-air mixture, in which case the dew point can also be set.
  • On the opposite side of the pressed material mat at least some of the moist air is preferably sucked out again or a vacuum is created by means of a suction system in order to assist the penetration depth of the steam into the pressed material mat and to reduce the curing time in the second zone.
  • the first zone which will be referred to below as the “steaming zone” to simplify readability in the description, is generally somewhat shorter than the second zone, which will be called the "curing zone”.
  • the final purpose of air cooling is to cool the hardened pressed material mat to such an extent that no harmful processes, such as hydrolysis, can occur after it leaves the device and impair the quality of the panel.
  • the device has a height-adjustable inlet.
  • the required drive power for the pressed material mat depends to a large extent on the thickness of the pressed material mat and its compaction. Since customers want to change their production temporarily and the product thickness preferably varies between 5 and 240 mm, an adjustment may be necessary to achieve additional compaction or to increase the distance to be adjustable between a sieve belt on the upper side of the material mat and a sieve belt on the lower side of the material mat.
  • the calibration plates are preferably heatable plates.
  • Calibration plates 3 are therefore arranged in the zones and preferably in zone 2. These can be heated using different systems. Examples of possible systems include channels with heating fluid, inductive heating, electrical heating or steam heating, whereby the latter can also release the steam directly to the mat of material to be pressed. This can accelerate the hardening process of the binding agent, so that the length of the device remains within reasonable limits.
  • the first and second zones are immediately adjacent to each other.
  • immediate means that there is a maximum distance of 0.2 m in the direction of travel of the mat of material to be pressed between the last screen belt deflection roller in the steaming zone and the first screen belt deflection roller in the curing zone. This prevents energy loss to the environment of the heat required for curing in the device.
  • a sliding shoe is arranged between two screen belt deflection rollers, bridging the gap between the screen belt deflection rollers and the material mat or a screen belt.
  • a mat of material to be pressed is guided over the gusset between two screen belt deflection rollers, there is a risk that the mat of material to be pressed expands under pressure and causes damage in the transition from the steaming zone to the curing zone or suffers damage itself. This is particularly critical in the transition area from the first to the second zone and can therefore be used sensibly there, because there is no further support in this area, for example from a calibration plate.
  • a sliding shoe extending across the width of the mat of material to be pressed is arranged between the screen belt deflection rollers. In direct contact with the mat of material to be pressed, it is then guided over the maximum 0.2 m long transition on the shoe surface.
  • the sliding shoe has a flat sliding surface facing the mat of material to be pressed and its side walls are shaped so that they are adapted to the contour of the deflection rollers. In cross-section, this can be triangular, for example, with the hypotenuse (sliding side) being straight and the legs being curved to match the contour of the deflection rollers.
  • Fig.1 shows a schematic side view of the device according to the invention for producing insulation boards.
  • a mat of pressed material which consists at least partially of lignocellulosic particles wetted with binding agents, is treated in a first zone Z1 and a second zone Z2.
  • the separation of the zones is indicated in all figures by a dash-dotted vertical line.
  • this zone Z1 receives two separate rotating sieve belts that are driven separately. This reduces the tensile load on the long rotating sieves 5a and 5d.
  • zone Z2 in which the material to be pressed mat 2 hardens.
  • a separate rotating and driven sieve belt 5c, 5f is provided both above the material to be pressed mat 2 and below it, which provides part of the transport power. Overall, significantly higher speeds can be achieved with this arrangement.
  • zone 1 i.e. within the rotating sieve belts 5b and 5e, devices for applying steam 4a, 4b are also provided.
  • the steam penetrates through the rotating sieves 5a and 5b or 5d and 5e into the pressed material mat 2 and condenses. Escaping residual steam and residual air can be removed via the suction devices 6a and 6b.
  • a further device for applying steam 4c can be arranged, for example, in the inlet 9.
  • the moist surface produced also reduces the friction on the sieve belts 5a and 5d, which leads to additional energy savings.
  • zone 2 effective calibration plates 3 are therefore arranged, which can be heated by different systems.
  • channels with heating fluid, inductive heating, electrical heating or steam heating systems whereby the latter can also release the steam directly to the pressed material mat in the curing zone.
  • the mat of material to be pressed is cooled at the outlet of the device by an extraction system 6c, which draws cool air 14 from the environment through the mat of material to be pressed 2 in the form of an air cooling system 11.
  • Fig.2 and 3 differs as a possible second embodiment of Fig.1 This is now achieved by omitting the rotating screens 5c and 5f. This is possible with some types of insulation boards without any major losses in the drive pitch on the at least four rotating driven deflection rollers being expected.
  • Fig. 3 shows as a further embodiment, not according to the claimed invention, that the long rotating sieve can be dispensed with entirely. In the upper part of the device, therefore, only the sieve belts 5b and 5c are shown.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (13)

  1. Dispositif avec une première et une deuxième zone (Z1, Z2) pour la fabrication de panneaux isolants ou insonorisants à partir d'une natte de matière à presser (2), qui est composée au moins en partie de particules lignocellulosiques, humidifiées avec des liants, sachant que la première zone (Z1) est constituée pour le chauffage et le compactage de la natte de matière à presser et la deuxième zone (Z2) est constituée pour le durcissement de la natte de matière à presser à l'aide de plaques de calibrage (3),
    et sachant que des bandes filtrantes rotatives entraînées (5a-5f) en contact avec la surface supérieure et inférieure de la natte de matière à presser sont prévues, sachant qu'au moins quatre bandes filtrantes rotatives (5a-5f) sont mises en œuvre de telle manière qu'à l'intérieur d'une bande filtrante supérieure (5a), sont disposées une autre bande filtrante (5b) ou deux autres bandes filtrantes (5b, 5c) et à l'intérieur d'une bande filtrante inférieure (5d), un autre bande filtrante (5e) ou deux autres bandes filtrantes (5e, 5f),
    sachant que sur les au moins quatre bandes filtrantes, au moins deux sont disposées dans le secteur de la première zone (Z1) en contact fonctionnel avec la natte de matière à presser (2) et de celles-ci au moins deux dans le secteur de la deuxième zone (Z2) en contact fonctionnel avec la natte de matière à presser (2), sachant que par l'expression de contact fonctionnel, il convient également de comprendre un contact tel qu'il se produit lorsqu'une autre bande filtrante rotative passe entre la natte de matière à presser et la bande filtrante, sachant qu'au moins quatre bandes filtrantes (5a-5f) possèdent respectivement un système d'entraînement propre (8).
  2. Dispositif selon la revendication 1, caractérisé en ce que dans la première zone (Z1) est prévu un dispositif d'application de vapeur (4a, 4b, 4c) à la natte de matière à presser (2) et à l'extrémité de la deuxième zone (Z2), un dispositif pour un refroidissement à air (11) de la natte de matière à presser.
  3. Dispositif selon l'une quelconque des revendications 1 à 2, caractérisé en ce que le dispositif comporte un espace d'introduction (9) réglable en hauteur.
  4. Dispositif selon la revendication 3, caractérisé en ce qu'un dispositif de vaporisation (4c) est disposé dans l'espace d'introduction (9).
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'en ce qui concerne les plaques de calibrage, il s'agit de plaques pouvant être chauffées.
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la première et la deuxième zone (Z1, Z2) sont directement limitrophes l'une de l'autre.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'entre deux rouleaux de renvoi à bande filtrante (7) est disposé un patin coulissant (13) faisant jonction dans le gousset (12) entre les rouleaux de renvoi à bande filtrante (7) et la natte de matière à presser (2) ou une bande filtrante (5a, 5d).
  8. Procédé de fabrication de panneaux isolants ou insonorisants à partir d'une natte de matière à presser, qui est composée au moins en partie de particules lignocellulosiques, humidifiées avec des liants, avec un dispositif selon l'une quelconque des revendications 1 à 7, sachant qu'au moins quatre bandes filtrantes rotatives sont mises en oeuvre, dont au moins deux agissent dans le secteur de la première zone (Z1) sur la natte de matière à presser (2) et dont au moins deux agissent dans le secteur de la deuxième zone (Z2) sur la natte de matière à presser (2),
    sachant qu'au moins quatre bandes filtrantes (5a-5f) sont entraînées respectivement par un système d'entraînement propre (8).
  9. Procédé selon la revendication 8, caractérisé en ce que dans la première zone (Z1), un dispositif d'application de vapeur (4a, 4b, 4c) applique de la vapeur à la natte de matière à presser (2) et à l'extrémité de la deuxième zone (Z2), un dispositif de refroidissement à air (11) refroidit la natte de matière à presser (2).
  10. Procédé selon l'une quelconque des revendications 8 à 9, caractérisé en ce qu'un espace d'introduction (9) est adapté au moyen d'un dispositif (10) à la natte de matière à presser (2) entrant à traiter.
  11. Procédé selon l'une quelconque des revendications 8 à 10, caractérisé en ce que la natte de matière à presser (2) est vaporisée dans l'espace d'introduction (9).
  12. Procédé selon l'une quelconque des revendications 8 à 11, caractérisé en ce que la première et la deuxième zone (Z1, Z2) sont disposées directement limitrophes l'une à côté de l'autre.
  13. Procédé selon l'une quelconque des revendications 8 à 12, caractérisé en ce que la natte de matière à presser (2) est guidée dans le gousset (12) entre deux rouleaux de renvoi à bande filtrante (7) par le biais d'un patin coulissant faisant jonction (13).
EP20701299.8A 2019-02-02 2020-01-17 Dispositif et procédé de production de plaques isolantes Active EP3917739B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019000767.0A DE102019000767B4 (de) 2019-02-02 2019-02-02 Vorrichtung und Verfahren zur Dämmplattenherstellung
PCT/EP2020/051151 WO2020156837A1 (fr) 2019-02-02 2020-01-17 Dispositif et procédé de production de plaques isolantes

Publications (3)

Publication Number Publication Date
EP3917739A1 EP3917739A1 (fr) 2021-12-08
EP3917739C0 EP3917739C0 (fr) 2024-04-17
EP3917739B1 true EP3917739B1 (fr) 2024-04-17

Family

ID=69182512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20701299.8A Active EP3917739B1 (fr) 2019-02-02 2020-01-17 Dispositif et procédé de production de plaques isolantes

Country Status (5)

Country Link
US (1) US20220072822A1 (fr)
EP (1) EP3917739B1 (fr)
CN (1) CN113423547B (fr)
DE (1) DE102019000767B4 (fr)
WO (1) WO2020156837A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020205345B3 (de) 2020-04-28 2021-07-22 Gutex Holzfaserplattenwerk H. Henselmann Gmbh + Co Kg Flexible Fasermatte aus Holzfasern und Bikomponentenfasern als thermoplastisches Bindemittel sowie Verfahren und Vorrichtung zu deren Herstellung

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Also Published As

Publication number Publication date
EP3917739C0 (fr) 2024-04-17
EP3917739A1 (fr) 2021-12-08
US20220072822A1 (en) 2022-03-10
CN113423547B (zh) 2023-10-31
WO2020156837A1 (fr) 2020-08-06
DE102019000767A1 (de) 2020-08-06
DE102019000767B4 (de) 2021-03-25
CN113423547A (zh) 2021-09-21

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