WO2018011430A1 - Système de dispersion et procédés de fabrication d'un mat de matière dispersée au cours de la fabrication de panneaux de matériau - Google Patents

Système de dispersion et procédés de fabrication d'un mat de matière dispersée au cours de la fabrication de panneaux de matériau Download PDF

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Publication number
WO2018011430A1
WO2018011430A1 PCT/EP2017/067949 EP2017067949W WO2018011430A1 WO 2018011430 A1 WO2018011430 A1 WO 2018011430A1 EP 2017067949 W EP2017067949 W EP 2017067949W WO 2018011430 A1 WO2018011430 A1 WO 2018011430A1
Authority
WO
WIPO (PCT)
Prior art keywords
scattering
flow
wall
head
forming belt
Prior art date
Application number
PCT/EP2017/067949
Other languages
German (de)
English (en)
Inventor
Michael Kluschkewitz
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
Priority to CN201790001063.6U priority Critical patent/CN210389562U/zh
Publication of WO2018011430A1 publication Critical patent/WO2018011430A1/fr

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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
    • B27N3/14—Distributing or orienting the particles or fibres

Definitions

  • the present invention relates to a spreader for producing at least part of a spreader mat in the course of the production of material plates according to the preamble of claim 1.
  • the present invention also relates to a method for producing a spreading material mat in the course of the production of material plates after the
  • Binder strewn to a grit mat on a forming or conveyor belt the grit mat is then fed to any necessary pretreatment and finally a compression.
  • the compression can be carried out continuously or discontinuously by means of pressure and / or heat.
  • the structure of scattering equipment for the production of such material plates is usually dependent on the type of material used, in particular the chips or particles and the most suitable method to deposit these chips as evenly as possible in terms of basis weight on a forming belt or scatter. Separating scattering of chips or other free-flowing material can be achieved, for example, with the aid of at least one of the following machine and plant types:
  • Roller baffles with a separation over different gap widths between the rollers
  • roller scrapers are often rather for the distribution of relatively coarser material, such as material for scattering of Layers inside a multilayer material plate, used.
  • Cover layers of the fines content of the material to be scattered are provided for example by means of roller grate heads and for the production of inner middle layers consisting of the coarse material fractions of the material to be scattered.
  • Such known scattering systems generally require a separate device for supplying scattering material for each scattering head; the material to be scattered itself is also prepared in such Streuanlagen in upstream process steps for the scattering by the respective scattering head and vorsepariert in particular by screening to particle size. This adversely prolongs the production time and its effort.
  • the present invention based on the object, a comparison with the prior art improved scattering system for producing a To provide grit mat and method for producing such a grit mat.
  • a stream of material from at least fine and / or coarse fractions should be homogenized by means of only one scattering head of the scattering plant equally as well as classified allow to scatter to a multi-layer grit mat.
  • the invention relates to a generic scattering system for producing at least a portion of a grit mat at least partially via wind scattering, with at least a first scattering head for scattering a metered this supplied material flow to a arranged below the scattering head forming belt;
  • the scattering head comprises a Windstreusch having an at least partially gas-permeable wall on a transverse side, which is operatively connected to a blower device for introducing a gas stream into the Windstreusch, the scattering head at least one distributor, preferably below the gas stream, for distributing the flow of material on the Forming band has.
  • the solution to the problem for a scattering system is that the distribution device has at least one scattering head in the Windstreuhunt beginning and extending beyond the wall extension.
  • the distribution device has a first section for distributing at least a portion of the fines in the material flow and a second section for distributing the coarse material fractions in the material flow to the forming belt.
  • a first section for distributing at least a portion of the fines in the material flow
  • a second section for distributing the coarse material fractions in the material flow to the forming belt.
  • in the gas stream at least one sieve for separating at least the
  • the distribution device is preferably characterized by a roller bed
  • Dispersing rollers formed, which are driven gas flow side in a direction of rotation against the gas flow.
  • the distribution device is formed by a roller bed of scattering rollers, the transport of the fine and coarse material shares in
  • scattering rolls have proven to have a, preferably V-shaped, surface profile that causes a homogenizing distribution of fine and / or coarse material in the flow of material on the forming belt.
  • Spreader rolls with such, in particular V-shaped, surface profile advantageously ensure the controlled passage of defined quantities of material between two spreader rolls onto the forming belt.
  • fractions, in particular of the coarse material fraction in the material flow, which pass through the scattering rollers through the gaps in the surface profile of the rollers are comminuted and thus limit the particle size of the scattered amount of material.
  • the second section at least partially a smaller, parallel to the forming belt or inclined distance extending than the first section or vice versa.
  • the at least second section of the distributor device is at least 50%, 75%, 100% or 125% of the extent of the first section or preferably comprises at least six, twelve or eighteen scattering rollers. Because the longer the extension of the second section, the better the coarse material is homogenized and classified scattered. Accordingly, the dosing supplied to the scattering head material flow may include a higher proportion of coarse material. This is particularly advantageous if the material flow, as disclosed according to the invention, consists both of fine cover layer material and of coarser middle layer material.
  • a device for discharging "defective material” is arranged at the end of the distributing device which extends beyond the wall, and the term “defective product” in particular includes clumping of the material or material referred to large grain size and / or foreign material, which could lead to damage of a scattering system in the transport direction of the spreading material mat downstream belt press if it could get into the belt press with the spreading material mat.
  • the term "defective product" in particular includes clumping of the material or material referred to large grain size and / or foreign material, which could lead to damage of a scattering system in the transport direction of the spreading material mat downstream belt press if it could get into the belt press with the spreading material mat.
  • Distribution device is arranged a device for the discharge of faulty material, any faulty material can be removed in the flow of material and the belt press so advantageous protected against damage.
  • guide elements for producing a substantially laminar gas flow are arranged in front of and / or behind the wall. This has the advantage that as uniform as possible, reaching over the depth of the windbreak chamber distribution, in particular the fines in the material flow can be achieved by wind scattering. Moreover, it has proven useful in a further embodiment of the invention to rearrange at least one second or further screens in the gas flow to the at least one screen, wherein in particular the mesh size of the respective screens decreases with increasing distance from the wall.
  • Wind scattering ie the separation (sighting) by weight and / or density of the material to be spread, ensure two or more sieves with decreasing
  • Mesh size a separation of the fines content by grain size and thus lead to a finer classification of the fines in the material flow. This has the advantage that first the wind-swept particles come to rest on the forming belt and then the other fractions of the fines in the material flow.
  • Windstrike chamber respectively after the wall have a different profiling.
  • At least a part of the distributing device preferably the whole, can be displaceably arranged, preferably by the proportion of the above
  • Air sifter or on the distribution device scattered particles scattered particles.
  • Spreading mat at least partially by wind scattering, by means of a scattering system (1), used at least a first scattering head for scattering a metered this supplied material flow to a arranged below the scattering head forming belt; wherein the flow of material is applied in a wind-ratchet chamber of the scattering head with a gas stream which is generated by means of a blower device and which is introduced at a transverse side through an at least partially gas-permeable wall in the wind rake chamber and wherein the material flow in the Windstrike chamber of the scattering head, preferably below the gas stream, is distributed with at least one distributor on the forming belt.
  • the solution to the problem consists essentially in that the distribution device for distributing the flow of material has a beginning in the windbreak chamber and extending beyond the wall extension.
  • Grobgut portions are distributed in the flow of material on the forming belt.
  • at least one sieve can separate a coarse material fraction from the fine material fraction in the material flow in the windscrew chamber behind the wall in the gas stream, and particularly preferably only one section.
  • the fine and / or coarse material fractions are transported in the material flow by means of the distribution device gas flow side against the gas flow.
  • the flow of material should in the second section of
  • the method for producing a grit mat on the forming belt with at least two arranged scattering heads (2, 4) is applied, which are arranged in mirror image to each other.
  • the speed of the forming belt is greater than 1,000 mm / s, preferably greater than 1 .500 mm / s.
  • This achievable speed of the forming belt in conjunction with a specific plate thickness can advantageously define the plant capacity of the press plant: because the greater the achievable speed of the forming belt with the same product quality, the greater advantageous is the production speed.
  • Grit mat at least partially produced by wind scattering by means of only a scattering head.
  • the present invention also makes it possible to minimize the number of mutually downstream scattering heads within a scattering system.
  • the present invention in contrast to the prior art, so more compact scattering systems for
  • the gas-permeable wall essentially defines the passage of the gas flow from the blower device and its baffles. Usually, this transition is usually defined by a gas flow adjusting register. Essentially, the gas-permeable wall of the windbreaker chamber is to begin to act at the end of the windbreak chamber, where the gas flow in the windbreak chamber begins. The distribution device according to the invention continues against the gas flow, below the blower device.
  • the distribution device usually acts not only as stowage material conveyor and usually forms a lying on the distributor material flow carpet, but homogenizes the flow of material that is scattered on the forming belt along and across the mold belt alike.
  • Distributor may have different properties. It can too additional sections with differentiated properties may be provided to allow scattering in several differentiable layers.
  • the coarse material portion can be scattered outside of the windbreak chamber or behind the wall with a different profiling of the scattering rollers.
  • Distributor be moved in or against the production direction to adjust the proportion of particles scattered through the air separation or on the distribution device.
  • Fig. 1 shows a first embodiment of a scattering head, in which the sections of
  • Distributor to the forming belt have an equal distance
  • Fig. 2 shows a second embodiment of a scattering head, wherein the second portion has a smaller, parallel to the forming belt distance from the first
  • FIG 3 shows a third embodiment of a scattering head, in which the second section has a distance inclined to the forming belt;
  • Fig. 4 shows an embodiment of a scattering system, in which a first scattering head, a second scattering head is arranged downstream, which is constructed to mirror the construction of the first scattering head.
  • FIG. 1 shows a first embodiment of a scattering head 2 for scattering a material flow 1 1 metered into it by means of a metering device 10 comprising at least fine 1 1 1 and / or coarse fractions 1 12 on a forming belt 70 arranged below the scattering head 2 comprises a windbreak chamber 20, which at one Transverse side 3 has an at least partially gas-permeable wall 31, which is operatively connected to a blower device 30 for introducing a gas stream 32 into the windbreak chamber 20.
  • Windstreufarsch 20 behind the wall 31 in the gas stream 32 is at least one screen 21 or, as shown in a preferred embodiment, for example, three screens 21, 22 and 23 for separating at least the coarse material portion 1 12 of fines content 1 1 1 in the material flow 1 arranged.
  • the scattering head 2 also has at least one distributor device 40 for distributing the flow of material 11 onto the forming belt 70, at least below the sieve (s) 21, 22 and 23.
  • the distribution device 40 has an extension beginning in the windbreak chamber 20 and extending beyond the wall 31, which has a first section 401 for distributing at least a portion of the fines 1 1 1 in the material flow 11 and a second section 402 for distributing the coarse material fractions 1 12 in the material flow 1 1 includes.
  • a free section 400 will generally be arranged, in which the material flow 1 1, classified by the gas flow 32 in such a way that it only affects the dust of the material flow 11, comes to lie directly on the forming belt 70.
  • the dust forms the surface of the cover layer DS lying on the forming belt 70.
  • the second section 402 may each comprise sixteen scattering rollers 42.
  • the distribution device 40 in a preferred embodiment by a roller bed 41, in particular from scattering rollers 42, is formed be in a rotation direction R against the gas stream 32 are driven. It has been proven that the scattering rollers 42 have a, preferably V-shaped, surface profile that a homogenizing distribution of fine 1 1 1 and / or
  • Grobgutanteile 1 12 in the flow of material 1 1 on the forming belt 70 can cause.
  • a device 60 for the discharge of faulty material 1 13 arranged which advantageously allows the removal of any defective goods 1 13 and so one of the scattering system. 1 in the transport direction T of the spreading material mat 80 downstream belt press (not shown) can protect against damage.
  • guiding elements 33 for generating a substantially laminar gas flow 32 can furthermore preferably be arranged.
  • the at least one sieve 21 at least a second 22 or more sieves in particular as seen here a third sieve 23, may be arranged downstream, wherein the mesh size of the respective sieves 21, 22 and 23 with increasing distance from the wall 31 preferably decreases.
  • This can in addition to wind scattering, so the separation (sighting) by weight and / or density of the material to be scattered, a separation of
  • FIG. 2 shows a second advantageous embodiment of a scattering head 2, in which the second section 402 has a smaller spacing running parallel to the forming belt 70 than the first section 401.
  • Section 402 for example, 50% of the extent of the first section 401.
  • the second portion 402 may comprise eight spreader rolls 42 and the first portion 401 may comprise sixteen spreader rolls 42.
  • the second section 402 can also have a spacing which is inclined relative to the forming belt 70, at least in a partial region of the section 402.
  • this section 402 of the distributing device 40 can follow all or part of the mat 80 "growing" as a result of scattering in the transporting direction T, whereby the drop height of the material can advantageously be kept constant even in this case 100% of the extent of the first section 401 amount.
  • FIG. 4 shows an embodiment of a preferred embodiment according to the invention
  • Scattering system 1 in which a second scattering head 2 according to the invention is arranged downstream of a first scattering head 2 according to the invention, which is preferably constructed mirror-inverted for constructing the first scattering head 2. Due to the mirror-inverted arrangement of two scattering heads 2 and 4 according to the invention, it is possible for the first time while maintaining wind scattering, with only two scattering heads 2 and 4 a
  • top layer DS Three-layer board consisting of top layer DS, middle layer MS and top layer DS
  • the production of such a three-layer plate while retaining wind scattering in a scattering device 1 comprising only two scattering heads 2 and 4 can be achieved by the likewise disclosed inventive method for producing at least part of a spreading material mat 80.
  • the method according to the invention is characterized in that the distributor device 40 has an extension beginning in the windbreak chamber 20 and extending beyond the wall 31, and at least a portion of the fines 1 1 1 in FIG.
  • Material flow 1 1 and a second portion 402 the coarse material fractions 1 12 in the material flow 1 1, in particular preferably by means of transport of the material against the gas stream 32, distributed.
  • the speed of the forming belt 70 is greater than 1,000 mm / s, preferably larger can be as 1 .500 mm / s, since the production speed is greater, the greater the achievable speed of the forming belt 70 at the same
  • the present invention relates to a scattering system 1 and a method for producing at least part of a grit mat 80 at least partially via wind scattering, with at least a first scattering head 2 for scattering a metered this supplied material stream 1 1 of at least fine 1 1 1 and / or coarse fractions 1 12 on a forming belt 70; wherein the scattering head 2 a
  • Windstrike chamber 20 includes, which at least partially
  • gas-permeable wall 31 for introducing a gas stream 32, wherein behind the wall 31 in the gas stream 32 at least one screen 21, 22, 23 for separating at least the Grobgutanteils 1 12 of fines content 1 1 1 in the material Ström 1 1 is arranged, and including at least one Distributor 40 is provided for the material flow 1 1, which has a beginning in the windbreak chamber 20 and extending beyond the wall 31 extending extension, which has a first portion 401 for distributing at least a portion of the fines 1 1 1 and a second portion 402 for distributing the Grobgutieri 1 12 includes.
  • Grit mat 80 are at least partially produced by wind scattering by means of only a scattering head 2.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention concerne un système de dispersion (1) servant à la fabrication d'au moins une partie d'un mat de matière dispersée (80) au moins en partie par dispersion par soufflage, comportant au moins une première tête de dispersion (2) servant à disperser sur une bande de formage (70) agencés sous la tête de dispersion (2) un flux de matériau (11) amené de manière dosée à ladite tête de dispersion (2), laquelle comprend une chambre de dispersion par soufflage (20) qui présente sur un côté transversal (3) une paroi (31) au moins par endroits perméable au gaz qui coopère avec une soufflerie (30) pour introduire un flux de gaz (32) dans la chambre de dispersion par soufflage (20), la tête de dispersion (2) présentant au moins un dispositif de distribution (40), de préférence sous le flux de gaz (32), pour la distribution du flux de matériau (11) sur la bande de formage (70). L'invention est caractérisée en ce que le dispositif de distribution (40) présente une étendue commençant dans la chambre de dispersion par soufflage (20) et se prolongeant au-delà de la paroi (31). L'invention concerne par ailleurs des procédés de fabrication d'un mat de matière dispersée (80) au cours de la fabrication de panneaux de matériau.
PCT/EP2017/067949 2016-07-14 2017-07-14 Système de dispersion et procédés de fabrication d'un mat de matière dispersée au cours de la fabrication de panneaux de matériau WO2018011430A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201790001063.6U CN210389562U (zh) 2016-07-14 2017-07-14 散布设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016113014.1 2016-07-14
DE102016113014.1A DE102016113014B4 (de) 2016-07-14 2016-07-14 Streuanlage und Verfahren zur Herstellung einer Streugutmatte im Zuge der Herstellung von Werkstoffplatten

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Publication Number Publication Date
WO2018011430A1 true WO2018011430A1 (fr) 2018-01-18

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CN (1) CN210389562U (fr)
DE (1) DE102016113014B4 (fr)
WO (1) WO2018011430A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114474291A (zh) * 2021-12-09 2022-05-13 千年舟新材科技集团股份有限公司 细料渐变铺装方法及铺装系统
CN115087529A (zh) * 2020-02-07 2022-09-20 迪芬巴赫机械工程有限公司 用于在成型带上散布可自由流动材料并使其成型的风散布室和方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111646213B (zh) * 2020-06-09 2021-08-10 杭州查凤科技有限公司 一种可以自动分拣的碎布料收集装置

Citations (8)

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Publication number Priority date Publication date Assignee Title
DE4021939A1 (de) * 1990-07-10 1992-01-16 Siempelkamp Gmbh & Co Streuanlage zum streuen von spanplatten-rohmaterial
DE19835419A1 (de) * 1998-08-05 2000-02-10 Kvaerner Panel Sys Gmbh Vorrichtung und Verfahren zur Windsichtung
DE19846106A1 (de) 1998-10-07 2000-04-13 Dieffenbacher Schenck Panel Streustation
EP0800902B1 (fr) 1996-04-11 2002-03-06 Dieffenbacher Schenck Panel GmbH Procédé pour fabriquer en continu d'un mât pour panneaux en bois ou en matériau similaire
DE102009039018A1 (de) * 2008-08-29 2010-05-12 Binos Gmbh Vorrichtung zur Streuung eines Vlieses
EP1480797B1 (fr) 2002-03-02 2010-11-17 Binos Technologies GmbH & Co. KG Dispositif pour produire un non-tisse
DE102010001649A1 (de) * 2010-02-05 2011-08-11 Dieffenbacher GmbH + Co. KG, 75031 Verfahren und Anlage zur Herstellung einer Streugutmatte aus zumindest einer gestreuten Schicht und eine Streugutmatte zur Verpressung in einer Presse im Zuge der Herstellung von Holzwerkstoffplatten (L)
WO2015091942A2 (fr) * 2013-12-20 2015-06-25 Dieffenbacher GmbH Maschinen- und Anlagenbau Procédé et appareil permettant de disperser des fibres, telles que des copeaux

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
DE19716130C1 (de) * 1997-04-17 1999-01-14 Kvaerner Panel Sys Gmbh Vorrichtung zum Streuen von lignozellulose- und/oder zellulosehaltigen Teilchen unterschiedlicher Größe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021939A1 (de) * 1990-07-10 1992-01-16 Siempelkamp Gmbh & Co Streuanlage zum streuen von spanplatten-rohmaterial
EP0800902B1 (fr) 1996-04-11 2002-03-06 Dieffenbacher Schenck Panel GmbH Procédé pour fabriquer en continu d'un mât pour panneaux en bois ou en matériau similaire
DE19835419A1 (de) * 1998-08-05 2000-02-10 Kvaerner Panel Sys Gmbh Vorrichtung und Verfahren zur Windsichtung
DE19846106A1 (de) 1998-10-07 2000-04-13 Dieffenbacher Schenck Panel Streustation
EP1480797B1 (fr) 2002-03-02 2010-11-17 Binos Technologies GmbH & Co. KG Dispositif pour produire un non-tisse
DE102009039018A1 (de) * 2008-08-29 2010-05-12 Binos Gmbh Vorrichtung zur Streuung eines Vlieses
DE102010001649A1 (de) * 2010-02-05 2011-08-11 Dieffenbacher GmbH + Co. KG, 75031 Verfahren und Anlage zur Herstellung einer Streugutmatte aus zumindest einer gestreuten Schicht und eine Streugutmatte zur Verpressung in einer Presse im Zuge der Herstellung von Holzwerkstoffplatten (L)
WO2015091942A2 (fr) * 2013-12-20 2015-06-25 Dieffenbacher GmbH Maschinen- und Anlagenbau Procédé et appareil permettant de disperser des fibres, telles que des copeaux

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115087529A (zh) * 2020-02-07 2022-09-20 迪芬巴赫机械工程有限公司 用于在成型带上散布可自由流动材料并使其成型的风散布室和方法
CN114474291A (zh) * 2021-12-09 2022-05-13 千年舟新材科技集团股份有限公司 细料渐变铺装方法及铺装系统

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Publication number Publication date
CN210389562U (zh) 2020-04-24
DE102016113014A1 (de) 2018-01-18
DE102016113014B4 (de) 2020-03-05

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