EP3028829B1 - Anlage zur herstellung einer holzwerkstoffplatte - Google Patents

Anlage zur herstellung einer holzwerkstoffplatte Download PDF

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Publication number
EP3028829B1
EP3028829B1 EP16151741.2A EP16151741A EP3028829B1 EP 3028829 B1 EP3028829 B1 EP 3028829B1 EP 16151741 A EP16151741 A EP 16151741A EP 3028829 B1 EP3028829 B1 EP 3028829B1
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EP
European Patent Office
Prior art keywords
conveyor belt
cake
vacuum
wood
impregnating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16151741.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3028829A1 (de
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.)
Flooring Technologies Ltd
Original Assignee
Flooring Technologies Ltd
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 Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to ES16151741T priority Critical patent/ES2738596T3/es
Priority to PL16151741T priority patent/PL3028829T3/pl
Priority to EP16151741.2A priority patent/EP3028829B1/de
Publication of EP3028829A1 publication Critical patent/EP3028829A1/de
Application granted granted Critical
Publication of EP3028829B1 publication Critical patent/EP3028829B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • 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
    • 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
    • B27N9/00—Arrangements for fireproofing

Definitions

  • the invention relates to a plant for producing a wood-based panel, in particular a wood fiber board, with which a cake sprinkled with an adhesive wood fibers or wood shavings is scattered on an endlessly circulating conveyor belt and conveyed in a transport direction T to various processing stations, the compressed cake in a pre-press and then pressed under pressure and temperature influence in a hot press to a plate of desired thickness.
  • a method for producing a wood-based panel is for example from DE 10 2005 033 687 A1 known.
  • first long fibers must be produced in a defibering cut, which can be done in an upstream process or immediately before the plant for producing the wood fiber boards.
  • the coarse, long wood fibers are then applied with additives, such as flame retardants and water repellents.
  • binder urea-formaldehyde glue
  • the fibers are then dried with appropriate additives and the fiber sizing via a power tube dryer.
  • the fiber mixture is sprinkled on a spreading device to an endless cake on the endless circulating conveyor belt.
  • the loosely sprinkled mixed fiber cake is then fed from the conveyor belt to a cold pre-press and cold pre-compaction of the fiber web is achieved.
  • the nonwoven fabric is again on the conveyor belt of a continuous hot press supplied in which it is hot-pressed to a plate of desired thickness.
  • the press belts are advantageously coated with a release agent to prevent adhesion of the plates formed.
  • the endlessly produced plates are then formatted and separated into individual plates and then assembled.
  • MDF Medium Density Fiberboard
  • HDF High Density Fiberboard
  • properties may be, for example, the conductivity that is involved or desired for a fiberboard either in powder coating the panel itself or when the panel is to be used as a laminate flooring panel support and the flooring must have antistatic properties.
  • the conductivity can be achieved by adding salts in the manufacturing process, for example in the refining process.
  • Another desired property may be a fire retardant design.
  • the DE 103 14 974 A1 discloses a plant for the production of moldings from lignocellulose-containing fibers, which consists of a gluing device, a fiber mat forming device, a curing device, an impregnating device and a finishing device.
  • From the DE 2050 530 A1 is a plant known, with a foamable polyurethane composition can be applied to the top of a plate.
  • the plate is transported by two conveyor belts arranged one behind the other. Between the two conveyor belts, a vacuum device is provided, with which the feed can be sucked into the plate by means of spray nozzles arranged transversely to the transport path of the plate.
  • the vacuum device may have sidewalls to increase the effectiveness of the vacuum.
  • a device is known with which he can pre-heat a mat of wood shavings or wood chips.
  • sieve bands are provided above and below the mat. Water vapor is introduced into the mat via the sieve belts or removed therefrom. The sieve belts serve to pre-compact the mat. For positive guidance of the water vapor, a vacuum can be applied.
  • the impregnation station consists of a vacuum station arranged below the conveyor belt and an application unit arranged above the conveyor belt for an impregnation medium.
  • the conveyor belt has vacuum channels, which are preferably produced by a perforation, and laterally next to the conveyor belt extending in the transport direction over the length of the impregnation are provided sheets for laterally limiting the vacuum.
  • the application unit is preferably arranged stationary and in particular preferably formed by nozzles.
  • the number of nozzles is determined by the nature of the desired impregnation.
  • the nozzles may be arranged parallel to one another over the full width of the chip or fiber cake or only partially, for example at the edge.
  • the impregnation takes place at a time within the manufacturing process, to which a high porosity of the surface is still present, which means that the impregnating medium can be easily sucked into the cake and evenly distributed there.
  • the vacuum is applied underneath the fiber cake and the impregnation medium applied to the fiber cake from above.
  • the impregnation medium is liquid, it can be sprayed onto the fiber cake by means of nozzles.
  • the device for applying the impregnation medium can be arranged stationary, which simplifies the construction of the production line and reduces its cost.
  • the impregnation is applied at least partially.
  • areas are created with / without impregnation (tempering), the tempered areas having deviating properties in relation to non-tempered areas.
  • the impregnation medium can influence, for example, the water absorption capacity or the strength values of the finished-pressed wood-based panel.
  • the wood fibers or wood chips wetted with a glue are sprinkled onto the conveyor belt 2, which is endlessly driven in the transport direction T, to form a cake 6.
  • a glue preferably a urea-formaldehyde glue
  • the cake 6 is compressed, so cold pre-compressed.
  • an impregnation station 4 is integrated, consisting of a below the conveyor belt 2 arranged vacuum station 12 and one above the conveyor belt 2 arranged application unit, such as nozzles 7, 8, consists.
  • the vacuum station 12 and the application units 7, 8 are stationary and immovable.
  • the conveyor belt 2 is perforated, so that vacuum channels form, by means of which the impregnating medium sprayed onto the upper side of the compressed cake 6 can be sucked by the vacuum station 12.
  • Side of the coating units plates 9, 10 are provided, which limit the cake 6 side and ensure that no air from the side can be sucked into the cake 6.
  • the metal sheets 9, 10 preferably extend over the entire length of the impregnating station 4.
  • the metal sheets 9, 10 are part of a closed frame 11 which encloses the impregnating station 4 to the outside and the vacuum station 12 receives as well as the application unit.
  • two nozzles 7, 8 are exemplified for the application unit.
  • a desired number of nozzles will be provided in the desired distribution within the impregnation station.
  • the conveyor belt 2 runs over an air-permeable frame part 13.
  • impregnation medium fire retardant particles as well as insect repellent protective particles can be used. Also, colors can be used as the impregnation medium to colorize the cake 6 targeted.
  • a heated impregnating medium By applying a heated impregnating medium, the cake 6 can be heated and thus the production speed can be increased. For heating the cake 6 also heated air can be entered.

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)
EP16151741.2A 2009-04-17 2009-04-17 Anlage zur herstellung einer holzwerkstoffplatte Active EP3028829B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES16151741T ES2738596T3 (es) 2009-04-17 2009-04-17 Instalación para la fabricación de un tablero a base de madera
PL16151741T PL3028829T3 (pl) 2009-04-17 2009-04-17 Instalacja do produkcji płyty drewnopochodnej
EP16151741.2A EP3028829B1 (de) 2009-04-17 2009-04-17 Anlage zur herstellung einer holzwerkstoffplatte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09005468.5A EP2241426B1 (de) 2009-04-17 2009-04-17 Verfahren zur Herstellung einer Holzwerkstoffplatte
EP16151741.2A EP3028829B1 (de) 2009-04-17 2009-04-17 Anlage zur herstellung einer holzwerkstoffplatte

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP09005468.5A Division EP2241426B1 (de) 2009-04-17 2009-04-17 Verfahren zur Herstellung einer Holzwerkstoffplatte
EP09005468.5A Division-Into EP2241426B1 (de) 2009-04-17 2009-04-17 Verfahren zur Herstellung einer Holzwerkstoffplatte

Publications (2)

Publication Number Publication Date
EP3028829A1 EP3028829A1 (de) 2016-06-08
EP3028829B1 true EP3028829B1 (de) 2019-06-05

Family

ID=40627221

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16151741.2A Active EP3028829B1 (de) 2009-04-17 2009-04-17 Anlage zur herstellung einer holzwerkstoffplatte
EP09005468.5A Active EP2241426B1 (de) 2009-04-17 2009-04-17 Verfahren zur Herstellung einer Holzwerkstoffplatte

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09005468.5A Active EP2241426B1 (de) 2009-04-17 2009-04-17 Verfahren zur Herstellung einer Holzwerkstoffplatte

Country Status (3)

Country Link
EP (2) EP3028829B1 (es)
ES (2) ES2585367T3 (es)
PL (2) PL3028829T3 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT3461610T (pt) * 2011-01-06 2021-11-25 Cefla Deutschland Gmbh Processo e dispositivo para influenciar seletivamente as características tecnológicas de zonas individuais de um painel à base de madeira, de um tecido não tecido pré-comprimido à base de madeira ou de um bolo de fibras de madeira
DE102012100800B4 (de) 2012-01-31 2021-08-05 Flooring Technologies Ltd. Verfahren zum Imprägnieren von Werkstoffplatten, imprägnierte Werkstoffplatte und Anlage zur Herstellung einer imprägnierten Werkstoffplatte
CN108177209B (zh) * 2017-12-29 2019-03-29 南京林业大学 一种木质材料压缩密实化的方法
EP3787859A1 (en) 2018-05-02 2021-03-10 Xylo Technologies AG Method and apparatus for producing a board for production of panels, board for production of panels, method and apparatus for producing panels, and panel producible by the method
EP3787860A1 (en) 2018-05-02 2021-03-10 Xylo Technologies AG Method and apparatus for producing a board for production of panels, board for production of panels, method and apparatus for producing panels, and panel producible by the method
EP4286149B1 (de) * 2022-05-31 2024-05-01 SWISS KRONO Tec AG Verfahren zum herstellen von osb-platten und osb-platten-herstellvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2050530A1 (en) 1970-01-29 1971-08-05 Nat Gypsum Co Impregnating porous board with binding agent
JPH10323809A (ja) * 1997-05-27 1998-12-08 Matsushita Electric Works Ltd 耐水用中密度繊維板の製造方法
DE19963203A1 (de) 1999-12-27 2001-09-20 Kunnemeyer Hornitex Verfahren zum Herstellen von plattenförmigen Holzwerkstoffen und Platte aus Holzwerkstoff
US6620459B2 (en) * 2001-02-13 2003-09-16 Houston Advanced Research Center Resin-impregnated substrate, method of manufacture and system therefor
DE10314974B4 (de) * 2003-04-02 2010-08-26 Glunz Ag Verfahren zur Herstellung von Formkörpern mit einer zusammenhängende lignocellulosehaltige Fasern aufweisenden formgebenden Struktur und Formkörper
DE102005016408A1 (de) 2005-04-08 2006-10-12 Dieffenbacher Gmbh + Co. Kg Verfahren zur kontinuierlichen Vorwärmung eines Vlieses oder einer Matte und Vorrichtung zur Durchführung des Verfahrens
DE102005033687A1 (de) 2005-07-19 2007-01-25 Steico Ag Holzfaserplatte und Verfahren zur Herstellung einer Holzfaserplatte
WO2007065085A2 (en) * 2005-11-29 2007-06-07 Timtek Australia Pty, Ltd. System and method for the preservative treatment of engineered wood products

Also Published As

Publication number Publication date
PL3028829T3 (pl) 2019-10-31
ES2738596T3 (es) 2020-01-23
EP3028829A1 (de) 2016-06-08
PL2241426T3 (pl) 2016-12-30
ES2585367T3 (es) 2016-10-05
EP2241426A1 (de) 2010-10-20
EP2241426B1 (de) 2016-05-04

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