EP1674224A1 - Procédé de production de panneaux de fibres de bois, et panneaux de fibres de bois ainsi produit - Google Patents

Procédé de production de panneaux de fibres de bois, et panneaux de fibres de bois ainsi produit Download PDF

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Publication number
EP1674224A1
EP1674224A1 EP05090341A EP05090341A EP1674224A1 EP 1674224 A1 EP1674224 A1 EP 1674224A1 EP 05090341 A EP05090341 A EP 05090341A EP 05090341 A EP05090341 A EP 05090341A EP 1674224 A1 EP1674224 A1 EP 1674224A1
Authority
EP
European Patent Office
Prior art keywords
mat
fibers
wood fiber
wood
thickness
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.)
Granted
Application number
EP05090341A
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German (de)
English (en)
Other versions
EP1674224B1 (fr
Inventor
Cevin Marc Pohlmann
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.)
Kronotec AG
Original Assignee
Kronotec AG
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
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Application filed by Kronotec AG filed Critical Kronotec AG
Priority to PL05090341T priority Critical patent/PL1674224T3/pl
Publication of EP1674224A1 publication Critical patent/EP1674224A1/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
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
    • 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
    • B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from 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

Definitions

  • the invention relates to a method for producing a wood fiber insulation board or mat and produced by this process wood fiber insulation boards or mats.
  • wood fiber insulation panels or mats are known.
  • wood fiber insulation boards or mats are produced using the wet process.
  • the plates or mats produced by these methods are relatively thin and the cost of manufacturing high, in particular, incur high costs for drying.
  • the obtained wood fiber insulation panels are characterized by a layered construction, since the fibers are aligned when scattering on the screen belt more or less aligned in one direction, as is generally known from the manufacturing process of MDF boards.
  • Such plates which are used for the insulation or for panel production, have a low transverse tensile strength.
  • the individual layers can be easily separated from each other with insulation boards.
  • the invention has for its object to provide a method for the production of wood fiber insulation boards or mats in the dry process, which makes it possible to produce single-layer wood fiber insulation panels or mats with wide thickness range with good transverse tensile strength and compressive rigidity and a large density range.
  • the fibers used are aligned in three dimensions. This orientation of the fibers is maintained until final solidification.
  • devices are preferably used, as are known for the production of textile fabrics by the nonwoven method.
  • the wood fibers are used with a moisture content of 7 to 16%, in particular 12 to 14%.
  • wood fibers which are obtained in a refiner made of wood pulped, they are previously mixed in a manner known per se with flame retardants and / or water repellents in amounts of 8 to 30%, in particular 10 to 20%, and adjusted to the desired Moisture content dried while removing dust and fibers with small lengths or diameters.
  • the addition of the flame retardant and / or water repellents and the drying of the wood fibers takes place separately from the production according to the invention of the wood fiber insulating panels or mats.
  • bale openers in which the fibers are well opened.
  • additional natural fibers such as hemp, flax, sisal, may be used in addition to the wood fibers in order to achieve certain desired properties in the wood fiber insulation boards according to the invention. Additional bale openers are then provided for these fibers.
  • the individual components are weighed out over separate weighing devices arranged according to the respective bale openers and entered into a blow pipe.
  • the components are weighed out over separate weighing devices arranged according to the respective bale openers and entered into a blow pipe.
  • the fine synthetic resin fibers adhere well to the excess wood fibers.
  • the wood fibers are used to bind fibers in mixing ratios of 95 to 80 to 5 to 20% and preferably of 90 to 10%. In these material mixtures up to 30% of the wood fibers can be replaced by other natural fibers.
  • the intensive mixing of the fibers is continued in the reservoir by the blown in transport air.
  • the wood fiber binder fiber mixture is weighed evenly over its width after weighing on a surface scale on a first conveyor belt.
  • the amount of supplied fiber mixture depends on the desired layer thickness and the desired density of the produced wood fiber insulation board or mat, the bulk densities are between 20 to 300 kg / m 3 .
  • the orientation of the fibers is three-dimensional.
  • plastic granules such as those used in the recycling of plastic articles from the dual system, are very suitable for this purpose. It is also possible to use granules which consist of a thermally resistant core and a casing of synthetic resins which soften at the temperatures used in the heating zone.
  • the plastic granules can be added in amounts of 5 to 45%, especially in amounts of 10 to 40% and in particular in amounts of 22 to 37%, based on the particular fiber mixture used.
  • a powder spreader ensures a uniform distribution of the scattered plastic granules over the entire width of the fiber web moved on the first conveyor belt.
  • the pre-fleece runs at the end of the first conveyor belt in a Zerfaserungsvorraum, wherein again a mixing of the fibers used and the possibly scattered plastic granules.
  • the resulting fiber mixture is inflated to a second conveyor belt and provided for a three-dimensional orientation of the fibers.
  • the layer thickness of the obtained endless mat is adjusted.
  • the layer thickness of the mat can be between 3 to 400 mm.
  • On the endless mats thus obtained may optionally be placed on one or both sides of tissue or nonwovens made of organic, inorganic or natural fibers. Likewise, webs of cellulose or foils are conceivable.
  • the applied fabrics, nonwovens or webs can be structured and / or perforated. Likewise, a coloring is possible. This makes it possible to improve the desired properties of the wood-fiber insulating panels or mats according to the invention.
  • the wood fiber insulation panels or mats thus obtained are now transferred from the second conveyor belt to an endless oven belt.
  • the oven belt guides the mat through the heating / cooling oven. It is softened by the temperatures prevailing in the furnace, the binder fiber and the resin granules and thus activated.
  • the temperatures in the heating zone are 130 to 200 ° C and in particular 160 to 185 ° C and are obtained for example by blown hot air. Both the binding fibers and the resin granules provide an intimate connection with the wood fibers and possibly laid fabric webs or films.
  • a calibration zone connects to the heating zone.
  • the calibration zone is formed by pairs of rollers in which the wood fiber insulation panels or mats in their Thickness evened and, if desired, compressed to the final thickness.
  • the obtained wood fiber insulation boards or mats are compressed to thicknesses of 3 to 350 mm, in particular 4 to 250 mm.
  • the resulting mats are fed with the oven belt a cooling zone in which the mat is cooled with ambient air.
  • the mat is fed to the finished wood fiber insulation panels or mats according to the invention.
  • the mat is trimmed at the edges and then split longitudinally and / or transversely.
  • the accumulated waste, in particular the edge strips, are comminuted and returned to the process. Since the desired mixing ratio is given, the material can be fed directly into the reservoir.
  • novel process wood fiber boards or mats which are characterized by the wide range of plate thickness of 3 to 350 mm, in particular 4 to 250 mm at densities of 20 to 300 kg / m 3 and in addition to an improved transverse tensile strength and a show increased pressure stiffness.
  • the invention further relates to wood fiber insulating panels or mats according to the characterizing features of claims 15 to 25.
  • the invention Holzmaschinedämmstoffplatten or mats show a spatial orientation of the wood fibers and the binder fibers and have layer thicknesses of 3 to 350 mm at densities of 20 up to 300 kg / m 3 .
  • the wood fiber insulation panels or mats according to the invention are as acoustic insulation panels, as impact sound insulation mats for laminate or parquet floors, as penetration-resistant insulation board, as thermal insulation composite board, as mecanicsparrendämmung u.ä. used.
  • fabrics u.ä. from inorganic, organic or natural fibers, or films that may be structured, perforated, dyed the range of applications of wood fiber insulation panels or mats according to the invention is further increased.
  • a wood fiber insulation board 10 parts binding fibers with 90 parts of wood fibers, which were previously provided with flame retardants, mixed and inflated evenly over a reservoir on a first conveyor belt after weighing, so that the density of 30 to 60 kg / m 3 , in particular 35 to 45 kg / m 3 .
  • the pre-fleece is tufted and inflated after loosening on a second conveyor belt with a thickness between 60 to 250 mm and transferred to the resulting endless mat on the oven belt. After the heating zone, the mat was spent without much compaction, but only homogenization in the cooling zone and then divided to the desired dimensions.
  • the binding fibers ensure a connection of the wood fibers and a connection of the laid-up fleece to the formed wood fiber insulation board.
  • absorbers or resonators 88 parts of wood fibers are mixed with 12 parts of binder fibers and inflated from the reservoir in quantities on a first conveyor belt, which is achieved a bulk density of 35 to 100 kg / m 3 in the mat. After crushing the resulting fleece at the end of the conveyor belt 1, the material is inflated to a second conveyor belt in thicknesses between 30 to 120 mm. The resulting mat is further treated as described in Example 1.
  • binder fibers For the production of wood fiber insulating materials for use in acoustics, 10 parts of binder fibers are mixed with 75 parts of wood fibers and 15 parts of flax fibers and uniformly inflated via a storage container onto a first conveyor belt to obtain a final product with a bulk density of 35 to 130 kg / m 3 becomes. Under comminution of the pre-fleece at the end of the first conveyor belt and repeated mixing, the material of the pre-fleece is inflated to a layer thickness of 4 to 200 mm on the second conveyor belt. The resulting continuous mat is further treated as described in Example 1.
  • a wood fiber / hemp fiber insulation board 12 parts binder fibers, 60 parts wood fibers and 28 parts hemp fibers are mixed together.
  • the material is inflated uniformly from the reservoir in such quantities on a first conveyor belt, the bulk densities of 25 to 50 kg / m 3 , in particular 25 to 40 kg / m 3 , are obtained.
  • the mass is uniformly inflated to a second conveyor belt.
  • the speed of the second conveyor belt is adjusted so that mat thicknesses of 80 to 250 mm are obtained.
  • the further processing is carried out in the manner described in Example 1.
  • the fibers at the end of the first conveyor belt is a plastic granules through a arranged over the entire width of the first conveyor belt powder spreader, as in the recycling of Synthetic resin products obtained from the dual system, added in quantities, which is given in the resulting nonwoven on the second conveyor belt a ratio of wood fibers to binder fibers to resin granules of 55: 7: 38.
  • the mat thickness on the second conveyor belt is 5 to 10 mm.
  • the obtained endless mat of the second conveyor belt is transferred to the oven belt, heated in the heating zone with hot air to 170 to 180 ° C and pulled through the calibration zone. Here a small compression takes place on the final mat thickness of 3 to 8 mm.
  • binder fiber mixed with 75 parts of wood fibers and 17 parts of hemp fibers and fed to the reservoir.
  • the fiber mixture is uniformly inflated to a first conveyor belt, so that a nonwoven fabric with a density of 130 to 220 kg / m 3 and in particular from 150 to 180 kg / m 3 is formed.
  • granules are added via the powder spreader which consist of a thermally resistant core and a casing of synthetic resins which soften at the temperatures prevailing in the heating zone. The added amount of granules is so high that a part of granules is present on two parts of the fiber mixture.
  • the fiber mixture is well mixed by tearing at the end of the first conveyor belt with the granules and inflated onto the second conveyor belt.
  • the rotational speed of the second conveyor belt is adjusted so that an endless mat with a thickness of 20 to 22 mm is formed.
  • the product thus obtained is transferred to the oven belt and heated to 170 ° C. At this temperature, the product is driven through the sizing rolls and compacted to the final thickness of 8 to 15 mm.
  • the obtained Holzmaschinedämmstoffplatten are excellently suitable as Unterlegplatten in drywall.
  • binder fibers For the production of wood fiber insulation boards, which can be used for example as Aufsparrendämmung and walkable but not necessarily puncture-resistant, 11 parts of binder fibers are mixed with 89 parts of wood fibers and fed to the reservoir. From the reservoir, the fiber mixture is inflated in quantities on a first conveyor belt, so that end products have a bulk density of 70 to 150 kg / m 3 and in particular from 100 to 140 kg / m 3 . On the Vorvlies thus obtained are added via a powder spreader granules consisting of a heat-resistant core and a softening in the heating zone sheath and / or consist of resin granules which are obtained in the recycling of plastic articles from the dual system. The amount of added granules is 28 parts granules to 72 parts of the fiber mixture.
  • the pre-fleece with the scattered granules is crushed and blended well mixed on the second conveyor belt inflated.
  • the speed of the second conveyor belt is set so that the resulting endless mat has a thickness of 65 to 180 mm.
  • the mat can be provided on one side with a dense, moisture-repellent film and on the other side with a fabric fleece.
  • the prepared from both sides coated mat is passed from the second conveyor belt on the oven belt, heated in the heating zone to 175 ° C and compressed in the calibration to a final thickness of 60 to 160 mm.
  • a good matrix is formed by the softening binder fibers and the granules, into which the wood fibers are embedded and which ensure adequate bonding of the applied film or fabric fleece.
  • the fleece is torn open at the end of the first conveyor belt, the material is well mixed and then inflated to a second conveyor belt.
  • the rotational speed of the second conveyor belt is adjusted so that an endless mat with a thickness of 25 to 90 mm is obtained.
  • a structured fiber fleece preferably a random fiber fleece over the entire width of the endless mat is placed on one side.
  • the product thus obtained is transferred to the oven belt and heated in the heating zone to 175 to 185 ° C. In the calibration zone is compressed to a thickness of 15 to 60 mm and then cooled. The spatial arrangement of the fibers is maintained even after calibration.
  • the mats obtained show a high compressive stiffness combined with an increased transverse tensile strength.

Landscapes

  • 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)
  • Laminated Bodies (AREA)
EP05090341A 2004-12-21 2005-12-19 Process for production of wood fiber insulating panels Active EP1674224B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05090341T PL1674224T3 (pl) 2004-12-21 2005-12-19 Sposób wytwarzania z włókien drzewnych izolacyjnej płyty, względnie maty

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004062649A DE102004062649C5 (de) 2004-12-21 2004-12-21 Verfahren zur Herstellung einer Holzfaserdämmstoffplatte bzw.-matte und nach diesem Verfahren hergestellte Holzfaserdämmstoffplatten bzw.-matten

Publications (2)

Publication Number Publication Date
EP1674224A1 true EP1674224A1 (fr) 2006-06-28
EP1674224B1 EP1674224B1 (fr) 2011-03-23

Family

ID=35781389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05090341A Active EP1674224B1 (fr) 2004-12-21 2005-12-19 Process for production of wood fiber insulating panels

Country Status (7)

Country Link
US (1) US8273201B2 (fr)
EP (1) EP1674224B1 (fr)
AT (1) ATE502746T1 (fr)
DE (2) DE102004062649C5 (fr)
ES (1) ES2361753T3 (fr)
PL (1) PL1674224T3 (fr)
PT (1) PT1674224E (fr)

Cited By (4)

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WO2016135415A1 (fr) * 2015-02-23 2016-09-01 Neolife Procédé de fabrication d'un matériau de type bois reconstitué
EP3150345A1 (fr) * 2015-09-29 2017-04-05 SWISS KRONO Tec AG Materiaux isolants en fibres de bois presentant une faible emission de composes organiques volatiles (cov) et son procede de fabrication
EP3170635A1 (fr) * 2015-11-18 2017-05-24 SWISS KRONO Tec AG Plaque en matériau dérivé du bois osb (panneau de lamelles orientées) présentant des caractéristiques améliorées et son procédé de fabrication
US10369721B2 (en) 2014-11-06 2019-08-06 Flooring Technologies Ltd. Wooden material panel, in particular in the form of a wood-plastic composite material, and a method for producing the same

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US8555521B2 (en) * 2010-01-12 2013-10-15 Hot-Woods, Llc Method of treatment of wooden items
CN104114342A (zh) * 2011-12-13 2014-10-22 费德罗-莫格尔动力系公司 非纺织的阻燃防潮面板及其构造方法
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CH712472A2 (de) 2016-05-19 2017-11-30 Bionic Alpha Ag Verfahren zum Herstellen von Plattenelementen aus Holz, Plattenelemente und Verwendung derselben.
DE102016121590A1 (de) 2016-11-10 2018-05-17 Gutex Holzfaserplattenwerk H. Henselmann Gmbh + Co. Kg Verfahren zur Herstellung von brandhemmenden Dämmplatten/-matten und brandhemmendem Einblasdämmstoff aus Fasern auf Basis nachwachsender Rohstoffe
US20200189242A1 (en) * 2016-12-14 2020-06-18 Fpinnovations Sound insulating mat, method of manufacturing the same, noise control system comprising the same and its use
CN111447829B (zh) 2017-10-09 2024-01-12 普罗菲乐产品公司 水培生长介质
DE102020132552A1 (de) 2020-12-08 2022-06-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zur Herstellung von Holzfaserdämmstoffprodukten und Holzfaserdämmstoffprodukt

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WO2002027091A2 (fr) 2000-09-27 2002-04-04 Araco Kabushiki Kaisha Matieres fibreuses moulees et procedes et appareil pour les produire
US20040026012A1 (en) * 2000-09-27 2004-02-12 Takehiro Kato Molded fiber materials and methods and apparatus for making the same
US20050214537A1 (en) * 2004-03-11 2005-09-29 Kronotex Gmbh & Co., Kg. Insulation board made of a mixture of wood base material and binding fibers
EP1582646A1 (fr) 2004-03-11 2005-10-05 Kronotec Ag Panneau isolant d'un mélange de bois et liant filamentaires et procédé de fabrication associé

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10369721B2 (en) 2014-11-06 2019-08-06 Flooring Technologies Ltd. Wooden material panel, in particular in the form of a wood-plastic composite material, and a method for producing the same
WO2016135415A1 (fr) * 2015-02-23 2016-09-01 Neolife Procédé de fabrication d'un matériau de type bois reconstitué
EP3150345A1 (fr) * 2015-09-29 2017-04-05 SWISS KRONO Tec AG Materiaux isolants en fibres de bois presentant une faible emission de composes organiques volatiles (cov) et son procede de fabrication
EP3170635A1 (fr) * 2015-11-18 2017-05-24 SWISS KRONO Tec AG Plaque en matériau dérivé du bois osb (panneau de lamelles orientées) présentant des caractéristiques améliorées et son procédé de fabrication
WO2017084884A1 (fr) * 2015-11-18 2017-05-26 SWISS KRONO Tec AG Panneau à copeaux orientés (osb) en matériau dérivé du bois présentant des propriétés améliorées et procédé de fabrication associé
CN110142831A (zh) * 2015-11-18 2019-08-20 瑞士克罗诺泰克股份公司 具有改进的特性的osb（取向结构刨花板）人造板和用于其制造的方法
US10730202B2 (en) 2015-11-18 2020-08-04 SWISS KRONO Tec AG OSB (oriented strand board) wood material panel having improved properties and method for producing same
CN110142831B (zh) * 2015-11-18 2021-08-20 瑞士克罗诺泰克股份公司 具有改进的特性的osb（取向结构刨花板）人造板和用于其制造的方法
RU2766676C2 (ru) * 2015-11-18 2022-03-15 СВИСС КРОНО Тек АГ Плита осп (ориентированно-стружечная плита) на основе древесного материала с улучшенными характеристиками и способ ее изготовления

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PT1674224E (pt) 2011-06-02
DE102004062649C5 (de) 2013-06-06
US20060143869A1 (en) 2006-07-06
EP1674224B1 (fr) 2011-03-23
DE102004062649A1 (de) 2006-07-13
ES2361753T3 (es) 2011-06-21
DE502005011154D1 (de) 2011-05-05
PL1674224T3 (pl) 2011-08-31
US8273201B2 (en) 2012-09-25
ATE502746T1 (de) 2011-04-15

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