BR9907063A - Process for the production of mdf boards - Google Patents

Process for the production of mdf boards

Info

Publication number
BR9907063A
BR9907063A BR9907063-4A BR9907063A BR9907063A BR 9907063 A BR9907063 A BR 9907063A BR 9907063 A BR9907063 A BR 9907063A BR 9907063 A BR9907063 A BR 9907063A
Authority
BR
Brazil
Prior art keywords
production
fibers
tubular dryer
mdf
adhesive agent
Prior art date
Application number
BR9907063-4A
Other languages
Portuguese (pt)
Inventor
Paul Buchholzer
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of BR9907063A publication Critical patent/BR9907063A/en

Links

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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent

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)

Abstract

Patente de Invenção: <B>"PROCESSO PARA A PRODUçãO DE PLACAS MDF"<D>. A invenção refere-se a um processo para a produção de placas de fibra de baixa, média ou de alta densidade (LDF, MDF, HDF) por meio de compressão a quente de uma placa de fibra composta de fibras coladas, sendo que, para a produção das fibras, lascas picadas são amolecidas com sobrepressão de vapor e, então, moídas para formar fibras, as quais são transportadas, com a pressão de vapor, através de uma linha de sopro, para um secador tubular e, após sua secagem, são aduzidas a uma máquina de dispersão ou similar. Para a redução do consumo do agente adesivo é proposto, de acordo com a invenção, que o segmento final do secador tubular seja configurado como zona de umectação de cola, na qual a velocidade de transporte da mistura de fibras é reduzida por meio do aumento da seção transversal de fluxo do secador tubular e, desta maneira, é produzido um fluxo turbulento, cuja turbulência é elevada por meio de injeção de ar adicional, o qual é injetado simultaneamente com a injeção do agente adesivo e, de preferência, no mesmo ângulo com este, axialmente no centro da zona de umectação, cujo comprimento é aproximadamente 5 até 10 vezes maior do que seu diâmetro.Invention Patent: <B> "PROCESS FOR THE PRODUCTION OF MDF PLATES" <D>. The invention relates to a process for the production of low, medium or high density fiber boards (LDF, MDF, HDF) by means of hot compression of a fiber board composed of glued fibers, the production of the fibers, chopped chips are softened with steam overpressure and then ground to form fibers, which are transported, with the steam pressure, through a blowing line, to a tubular dryer and, after drying, are added to a dispersing machine or similar. In order to reduce the consumption of the adhesive agent, it is proposed, according to the invention, that the final segment of the tubular dryer be configured as a glue wetting zone, in which the transport speed of the fiber mixture is reduced by increasing the flow cross section of the tubular dryer and, in this way, a turbulent flow is produced, whose turbulence is increased by means of additional air injection, which is injected simultaneously with the injection of the adhesive agent and, preferably, at the same angle with this, axially in the center of the wetting zone, whose length is approximately 5 to 10 times greater than its diameter.

BR9907063-4A 1998-08-05 1999-07-03 Process for the production of mdf boards BR9907063A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19835307 1998-08-05
PCT/DE1999/002054 WO2000007785A1 (en) 1998-08-05 1999-07-03 Method for producing medium density fibre panels

Publications (1)

Publication Number Publication Date
BR9907063A true BR9907063A (en) 2000-10-17

Family

ID=7876502

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9907063-4A BR9907063A (en) 1998-08-05 1999-07-03 Process for the production of mdf boards

Country Status (12)

Country Link
JP (1) JP2002522251A (en)
KR (1) KR20010033491A (en)
CN (1) CN1308572A (en)
AU (1) AU5847799A (en)
BR (1) BR9907063A (en)
CA (1) CA2317513A1 (en)
DE (1) DE19930800A1 (en)
EE (1) EE200000407A (en)
HU (1) HUP0101990A3 (en)
IL (1) IL139932A0 (en)
TR (1) TR200001953T2 (en)
WO (1) WO2000007785A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014038A1 (en) 2000-08-11 2002-02-21 Flakeboard Company Limited Method and device for gluing dried fibres used for producing fibre plates
US6902125B2 (en) 2000-05-24 2005-06-07 Fritz Schneider Process and device for disintegrating irregularities in flows of wood fibres
DE10042534A1 (en) * 2000-08-30 2002-03-28 Kronotec Ag fibreboard
DE10059881B4 (en) 2000-12-01 2005-06-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Plant for fiber preparation
DE10153593B4 (en) * 2001-11-02 2005-11-17 Fritz Egger Gmbh & Co Apparatus and method for wetting wood fibers with a binder fluid
DE10247412C5 (en) * 2002-10-11 2010-07-01 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Plant for gluing fibers for the production of fiberboards, in particular MDF boards and the like wood-based panels
DE10247413B4 (en) * 2002-10-11 2009-05-07 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Plant for gluing fibers for the production of fiberboard, in particular MDF boards or the like wood-based panels
US7931765B2 (en) 2004-08-27 2011-04-26 Force Technology Method and device for applying a synthetic binder to an airborne flow of fibers
DE102007012691B4 (en) * 2007-03-13 2016-05-12 SWISS KRONO Tec AG Process for the production of wood fiber boards and LDF, MDF and HDF boards produced by this process
US8028945B2 (en) * 2007-05-31 2011-10-04 Andritz Inc. Refiner plates having steam channels and method for extracting backflow steam from a disk refiner
IT1399772B1 (en) 2010-04-30 2013-05-03 Imal Srl APPARATUS FOR THE INJECTION OF CHEMICAL COMPONENTS IN A FLOW OF NON-INCORRENT WOODEN MATERIAL
EP2431144B1 (en) 2010-09-15 2012-10-31 Kronotec AG Method and device for wet gluing wood fibres
CN102785278B (en) * 2012-07-20 2014-07-09 宁波大世界家具研发有限公司 Equipment for manufacturing integral wooden door made of wood fiber composite material
AT522983B1 (en) * 2019-09-30 2022-12-15 Andritz Ag Maschf PLANT AND PROCESS FOR APPLYING GLUES TO A FABRIC

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE461962B (en) * 1987-12-16 1990-04-23 Sunds Defibrator Ind Ab SET AND DEVICE FOR MANUFACTURING FIBER BOARD DISKS
AT403023B (en) * 1991-02-08 1997-10-27 Oesterr Hiag Werke Ag METHOD FOR PRODUCING WOOD FIBER PANELS
DE4122842C2 (en) * 1991-07-10 1993-11-18 Glunz Ag Process for the production of fiberboard from lumpy wood particles and isocyanate as a binder
DE19506353A1 (en) * 1995-02-23 1996-08-29 Schenck Ag Carl Method and device for wetting with a fluid
CA2168682A1 (en) * 1995-06-02 1996-12-03 David M. Harmon Method and apparatus for reducing blowline obstructions during production of cellulosic composites

Also Published As

Publication number Publication date
AU5847799A (en) 2000-02-28
HUP0101990A2 (en) 2001-09-28
CA2317513A1 (en) 2000-02-17
WO2000007785A1 (en) 2000-02-17
IL139932A0 (en) 2002-02-10
TR200001953T2 (en) 2001-01-22
CN1308572A (en) 2001-08-15
KR20010033491A (en) 2001-04-25
HUP0101990A3 (en) 2001-10-29
JP2002522251A (en) 2002-07-23
DE19930800A1 (en) 2000-02-17
EE200000407A (en) 2001-12-17

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]