EP1149672A1 - Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu - Google Patents

Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu Download PDF

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Publication number
EP1149672A1
EP1149672A1 EP01109735A EP01109735A EP1149672A1 EP 1149672 A1 EP1149672 A1 EP 1149672A1 EP 01109735 A EP01109735 A EP 01109735A EP 01109735 A EP01109735 A EP 01109735A EP 1149672 A1 EP1149672 A1 EP 1149672A1
Authority
EP
European Patent Office
Prior art keywords
rollers
spreading
continuous moving
material flow
arrangement
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
EP01109735A
Other languages
German (de)
English (en)
Other versions
EP1149672B1 (fr
Inventor
Matthias Graf
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.)
Dieffenbacher GmbH and Co KG
Original Assignee
Dieffenbacher Schenck Panel GmbH
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 Schenck Panel GmbH filed Critical Dieffenbacher Schenck Panel GmbH
Publication of EP1149672A1 publication Critical patent/EP1149672A1/fr
Application granted granted Critical
Publication of EP1149672B1 publication Critical patent/EP1149672B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 invention relates to a device for spreading grit on a continuously moving pad according to the generic term of claim 1.
  • DE-AS 11 74 058 are counter-rotating disk rollers or spiked rollers known, the rows in the circumference have arranged spines that between the rows of spines of the opposite roller.
  • a sieve below a blow register has, which comprises a vibration drive.
  • This sieving device can also be used for foreign objects such as Glue knots are excreted.
  • the object of the present invention is therefore a device for spreading spreading material in such a way that a high quality wood-based panels are produced can and damage to device parts of the production plant be avoided for the production of wood-based panels.
  • the rollers are arranged such that one through the The central axes of the rollers run to a horizontal plane Level an angle of 30 ° to 90 °, preferably 45 ° to 75 ° having.
  • the particles of the material flow are during the Passing impulsed between the rollers and depending on their specific weights with different kinetic energy. Depending on the kinetic Energy of the particles in the material flow move the particles of the material flow in a different throwing parabola from the opening roller assembly so that unwanted Foreign bodies are separated from the rest of the material flow can.
  • FIG. 1 shows schematically a molding station with at least one Dosing hopper 1, which has a discharge roller arrangement 2, an opening roller arrangement 3, a scattering head arrangement 4 and a forming belt 5 are shown.
  • the opening roller arrangement 3 consists of two below the discharge roller arrangement 2 rollers 6, 6 'arranged one above the other Rollers 6, 6 'are arranged axially parallel and one through the center axes of the rollers 6, 6 'running plane 7 to one horizontal plane 8 an angle ⁇ 9 of 30 ° to 90 °, preferably from 45 ° to 75 °.
  • rollers 6, 6 'can as described by the above State of the art are disclosed as toothed disc or spiked rollers.
  • the forming station is preferably for the production of plates from lignocellulose and or cellulose-containing particles of different Size such as fibers, chips and the like are provided.
  • the dosing bunker 1 becomes, for example, glued fibers as a material flow over the discharge roller arrangement 2 a predetermined width is continuously carried out and onto the Opening roller assembly 3 abandoned.
  • the material flow starts from the Discharge roller arrangement 2 due to its gravity down and hits the rollers 6, 6 'at low speed. These rotate at a very high speed of 600 to 3000 revolutions per minute preferably 800 to 1200 revolutions per minute and accelerate the impinging particles of the material flow on the peripheral speed.
  • the substance particles of the Material flow are due to the formation of the rollers 6, 6'als Toothed disc rollers or spiked rollers that work in opposite directions are driven in rotation by the between the Rolls 6, 6 'remaining gap promoted and thus with this speed catapulted from the opening roller assembly 3. Along with the particles, there is also an air flow pulled through the opening roller assembly 3. That airflow expands immediately behind the opening roller arrangement 3, causing a rapid delay in air speed becomes.
  • the light particles are characterized by their low kinetic energy along with the air flow is delayed. Foreign bodies with a higher specific weight, however, have a significantly higher kinetic energy and delay their speed reached very slowly. Dependent on on the kinetic energy of the particles in the material flow the particles of the material flow move in a different Throwing parabola from the opening roller arrangement, see above that unwanted foreign bodies are separated from the rest of the material flow can be.
  • the material flow occurs essentially horizontally Direction from the opening roller assembly 3.
  • the material flow moves in a throwing parabola from the opening roller arrangement 3.
  • the undesired foreign bodies, the at high speed in a flat throwing parabola leave the opening roller assembly 3 are in one separate shaft 11 collected, and thus from the rest Material flow separated.
  • a screw conveyor in the shaft or an inclined bottom plate of the shaft 11 the foreign bodies can be removed and disposed of.
  • material flow meets the one below the opening roller arrangement 3 arranged spreading head arrangement 4 and will subsequently sprinkled onto the forming belt 5 to form a fleece 12.
  • FIG. 1 Another embodiment of a molding station is shown schematically in FIG with dosing hopper 1, an opening roller arrangement 3, a scattering head arrangement 4 and a forming belt 5 on which the Material fleece 12 is sprinkled from glued fibers, shown.
  • dosing bunker 1 the material flow is glued Fibers temporarily stored and to a specified discharge width distributed and down over the entire width of the dosing hopper 1 carried out.
  • the material flow is then abandoned on the opening roller assembly 3, which consists of two in opposite directions rotatably driven rollers 6, 6 '.
  • rollers 6, 6 ' are arranged axially parallel, one through the central axes of the Rollers 6, 6 'running plane 7 to a horizontal plane 8 an angle ⁇ 9 of 30 to 90 °, preferably 45 ° to 75 ° having.
  • opening roller arrangement 3 can all through the Known opening rollers are used, which are suitable for spreading material from material flows as well Dissolve glue knot.
  • Below the opening roller arrangement 3 an additional conveyor device 13 is provided, which feeds the material flow to a scattering head arrangement 4.
  • the additional Conveying device 13 is a dosing belt scale trained who continuously in a controllable flow rate the scattering head arrangement 4 promotes, so that depending on the plate thickness and width of the spreading head arrangement a predeterminable amount is spreadable on the forming belt 5.
  • the conveying direction of the forming belt 5 is represented here by arrow 14.
  • the fiber dissolving roller arrangement could 3 also between the conveyor 13 and the scattering head arrangement 4 can be arranged.
  • discharge roller assembly 2 as shown in Figures 1 and 2 can also be seen, also consisting of several lying obliquely one above the other arranged rotating rollers, could also behind the discharge roller arrangement 2 a separation of Foreign bodies in a separate shaft using the different ballistic paths of particles with different specific weight.

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)
EP20010109735 2000-04-28 2001-04-20 Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu Expired - Lifetime EP1149672B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10020882 2000-04-28
DE2000120882 DE10020882A1 (de) 2000-04-28 2000-04-28 Vorrichtun zum Streuen von Streugut auf eine kontinuierlich bewegte Unterlage

Publications (2)

Publication Number Publication Date
EP1149672A1 true EP1149672A1 (fr) 2001-10-31
EP1149672B1 EP1149672B1 (fr) 2008-06-11

Family

ID=7640234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010109735 Expired - Lifetime EP1149672B1 (fr) 2000-04-28 2001-04-20 Dispositif pour distribution des matériaux granulaires sur un support en mouvement continu

Country Status (2)

Country Link
EP (1) EP1149672B1 (fr)
DE (2) DE10020882A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1174058B (de) * 1959-09-09 1964-07-16 Abitibi Power & Paper Company Geraet zur Herstellung einer gerichtete Holz-teilchen unterschiedlicher Abmessungen enthaltenden Spanplatte
US3252186A (en) * 1963-01-21 1966-05-24 Wood Conversion Co Differential fiber dispersing rolls and felting therefrom
US4068991A (en) * 1975-08-08 1978-01-17 G. Siempelkamp & Co. Layer-forming apparatus especially for particle board mats
EP0483742A2 (fr) * 1990-10-30 1992-05-06 Sunds Defibrator Loviisa Oy Dispositif pour disperser des matériaux fibreux, par exemple des fibres en bois
DE4212017A1 (de) * 1992-04-09 1993-10-14 Baehre & Greten Deckschichtstreuvorrichtung
US5496570A (en) * 1993-02-02 1996-03-05 Siempelkamp Gmbh & Co. Apparatus for spreading particulate materials
WO1998040173A1 (fr) * 1997-03-12 1998-09-17 Pal S.R.L. Dispositif a rouleaux servant a separer des granulats et des particules presentant differentes granulometries, et machine de formation correspondante mettant en oeuvre ce dispositif

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8128311U1 (de) * 1981-09-26 1986-12-11 Carl Schenck Ag, 6100 Darmstadt Vorrichtung zum Ausrichten von Spänen bei der Herstellung von Spanplatten
FI97112C (fi) * 1992-08-17 1996-10-25 Sunds Defibrator Loviisa Oy Laitteisto kuitujen, erityisesti lastujen sirottelemiseksi
DE4302850B9 (de) * 1993-02-02 2004-09-30 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Streumaschine zum Streuen von beleimtem Streugut zu Streugutmatten in einer Anlage zur Herstellung von Holzwerkstoffplatten
DE4439653A1 (de) * 1994-11-07 1996-05-09 Baehre & Greten Vorrichtung zum Streuen von beleimten Spänen, Fasern und dergleichen Teilchen
SE509665C2 (sv) * 1997-02-24 1999-02-22 Flaekt Ab MDF-Formare
DE19846106A1 (de) * 1998-10-07 2000-04-13 Dieffenbacher Schenck Panel Streustation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1174058B (de) * 1959-09-09 1964-07-16 Abitibi Power & Paper Company Geraet zur Herstellung einer gerichtete Holz-teilchen unterschiedlicher Abmessungen enthaltenden Spanplatte
US3252186A (en) * 1963-01-21 1966-05-24 Wood Conversion Co Differential fiber dispersing rolls and felting therefrom
US4068991A (en) * 1975-08-08 1978-01-17 G. Siempelkamp & Co. Layer-forming apparatus especially for particle board mats
EP0483742A2 (fr) * 1990-10-30 1992-05-06 Sunds Defibrator Loviisa Oy Dispositif pour disperser des matériaux fibreux, par exemple des fibres en bois
DE4212017A1 (de) * 1992-04-09 1993-10-14 Baehre & Greten Deckschichtstreuvorrichtung
US5496570A (en) * 1993-02-02 1996-03-05 Siempelkamp Gmbh & Co. Apparatus for spreading particulate materials
WO1998040173A1 (fr) * 1997-03-12 1998-09-17 Pal S.R.L. Dispositif a rouleaux servant a separer des granulats et des particules presentant differentes granulometries, et machine de formation correspondante mettant en oeuvre ce dispositif

Also Published As

Publication number Publication date
DE10020882A1 (de) 2001-10-31
DE50114017D1 (de) 2008-07-24
EP1149672B1 (fr) 2008-06-11

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