DE10336533A1 - Method and apparatus for wetting pourable goods with a binder - Google Patents
Method and apparatus for wetting pourable goods with a binder Download PDFInfo
- Publication number
- DE10336533A1 DE10336533A1 DE10336533A DE10336533A DE10336533A1 DE 10336533 A1 DE10336533 A1 DE 10336533A1 DE 10336533 A DE10336533 A DE 10336533A DE 10336533 A DE10336533 A DE 10336533A DE 10336533 A1 DE10336533 A1 DE 10336533A1
- Authority
- DE
- Germany
- Prior art keywords
- wetting
- section
- free
- flowing
- binder
- 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.)
- Withdrawn
Links
- 238000009736 wetting Methods 0.000 title claims abstract description 55
- 239000011230 binding agent Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 12
- 238000004026 adhesive bonding Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000003892 spreading Methods 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims 4
- 238000011144 upstream manufacturing Methods 0.000 claims 2
- 230000009969 flowable effect Effects 0.000 claims 1
- 239000007767 bonding agent Substances 0.000 abstract 2
- 239000012159 carrier gas Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 15
- 229920002522 Wood fibre Polymers 0.000 description 11
- 239000002025 wood fiber Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000011094 fiberboard Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B27N1/0227—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer
- B27N1/0254—Mixing the material with binding agent using rotating stirrers, e.g. the agent being fed through the shaft of the stirrer with means for spraying the agent on the material before it is introduced in the mixer
-
- 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)
- Mechanical Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Drying Of Solid Materials (AREA)
- Paper (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Benetzen von rieselfähigen Gütern mit einem Bindemittel. Unter rieselförmigen Gütern sind hierbei insbesondere lignozellulosehaltige Partikel wie Holzfasern, Holzspäne, Holzschnitzel sowie Fasern, Schnitzel und Späne aus nachwachsenden Rohstoffen wie Stroh, Hanf, Bambus, Reisstroh und granulären Kunststoffmaterialien umfasst.The The invention relates to a method and a device for wetting of free-flowing Goods with a binder. Under free-flowing Goods are especially lignocellulose-containing particles such as wood fibers, Wood chips, Wood chips and fibers, chips and shavings of renewable raw materials such as straw, hemp, bamboo, rice straw and granular plastic materials.
Plattenförmige Werkstoffe, insbesondere Faserplatten, werden durch Verpressen von beleimten Fasern hergestellt. Das Benetzen der Fasern mit einem Bindemittel stellt in diesem Herstellungsprozess einen wichtigen Verfahrensschritt dar. Die Beleimungssysteme bzw. -verfahren haben dabei die Aufgabe, das Bindemittel gleichmäßig auf die Fasern zu verteilen, so dass der Bindemittelanteil gering gehalten werden kann.Plate-shaped materials, In particular, fibreboard, are by pressing glued fibers produced. Wetting the fibers with a binder provides an important process step in this manufacturing process The gluing systems and methods have the task of the binder evenly on distribute the fibers so that the binder content is kept low can be.
Ein bekanntes Verfahren zur Beleimung von rieselförmigen Gütern ist die sogenannte Blow-Line-Beleimung. Hierbei werden die noch nassen Fasern mittels Dampfdruck durch eine Förderleitung transportiert und dabei mit Bindemittel bedüst. Die beleimten Fasern werden anschließend in einem Trockner getrocknet und dem weiteren Herstellungsprozess zugeführt. Die Fasertrocknung nach der Beleimung hat jedoch den Nachteil eines hohen Leimverbrauches. Da die Kosten des Leims (Bindemittel) im Verhältnis zu den Kosten der Fasern sehr hoch sind, stellt der hohe Leimverbrauch eine drastische Erhöhung der Herstellungskosten dar. Ein weiterer Nachteil bei diesem Beleimungsverfahren ist, das bei der Trocknung der zuvor beleimten Fasern Formaldehyd freigesetzt wird und hierdurch aufwendige Trocknerabluft-Reinigungsmaßnahmen erforderlich sind.One known method for gluing of free-flowing goods is the so-called blow-line gluing. Here are the still wet fibers by steam pressure through a delivery line transported while admixed with binder. The glued fibers become subsequently dried in a dryer and the further manufacturing process fed. However, the fiber drying after gluing has the disadvantage of high glue consumption. As the cost of glue (binder) in the relationship At the cost of fibers are very high, represents the high glue consumption a drastic increase the production cost. Another disadvantage of this Beleimungsverfahren is that when drying the previously glued fibers formaldehyde is released and thereby consuming Trocknerabuft cleaning measures required are.
Im Unterschied zur vorstehend beschriebenen Nassbeleimung sind auch einige Vorrichtung und Verfahren zur Trockenbeleimung bekannt.in the Difference to the above-described wet gluing are also some device and method for dry gluing known.
Aus
der
Aufgrund der turbulenten Strömung soll mit dem oben beschriebenen Verfahren das bilden von Faserzusammenballungen vermieden werden, da diese Faserzusammenballungen in der Faserplattenoberfläche zu Leimflecken führt sowie Schäden an den Pressbändern der Presse verursachen können.by virtue of the turbulent flow is intended to form fiber aggregates using the method described above be avoided, since these fiber clumps in the fiberboard surface to glue spots leads as well damage on the press belts can cause the press.
Aufgabe der vorliegenden Erfindung ist, es ein Verfahren und eine Vorrichtung zum Benetzen von rieselfähigen Gütern mit einem Bindemittel im Zuge der Herstellung von plattenförmigen Werkstoffen derart weiterzubilden, dass eine gleichmäßige Leimverteilung sowie eine hohe Betriebssicherheit erreicht wird.task According to the present invention, it is a method and an apparatus for wetting free-flowing goods with a binder in the course of the production of plate-like materials in such a way that a uniform glue distribution and a high operational reliability is achieved.
Diese Aufgabe wir durch die im Patentanspruch 1 bzw. Patentanspruch 5 angegebenen Merkmale gelöst.These We task by the in claim 1 or claim 5 specified characteristics solved.
Gemäß dem erfindungsgemäßen Verfahren werden die mit Bindemittel zu benetzenden rieselförmigen Güter, nachfolgend Partikel genannt, zunächst auf Endfeuchte getrocknet.According to the inventive method the bulk goods to be wetted with binders, hereinafter called particles, first up Final moisture dried.
Die getrockneten Partikel werden dann mittels Transportluft einem Benetzungsabschnitt zugeführt, der mit einer Vielzahl von Beleimungsdüsen versehen ist. Vorzugsweise sind die Beleimungsdüsen längs des Benetzungsabschnittes über den Umfang verteilt spiralförmig angeordnet.The dried particles are then by means of transport air a wetting section supplied which is provided with a plurality of Beleimungsdüsen. Preferably are the gluing nozzles along the Wetting section over the circumference is distributed spirally arranged.
Unmittelbar vor dem Benetzungsabschnitt ist ein Reduzierabschnitt vorgesehen, der eine Querschnittsreduzierung von D1 der Förderleitung auf D2 des Benetzungsabschnittes bewirkt.immediate a reducing section is provided in front of the wetting section, a cross-sectional reduction of D1 of the delivery line to D2 of the wetting section causes.
Diese Reduzierung des Querschnittes in Förderrichtung bewirkt eine Geschwindigkeitserhöhung des geförderten Partikelstroms. Aufgrund der Vielzahl der vorgesehenen Beleimungsdüsen und die Anordnung der Beleimungsdüsen längs des Benetzungsabschnittes sowie der hohen Geschwindigkeit des Partikelstromes im Benetzungsabschnitt wird eine gute Verwirbelung der Partikel und gleichmäßige Verteilung des Bindemittels auf den Partikeln erreicht.These Reduction of the cross section in the conveying direction causes an increase in the speed of the funded Particle stream. Due to the large number of provided Beleimungsdüsen and the Arrangement of gluing nozzles along the Wetting section and the high velocity of the particle flow In the wetting section, a good turbulence of the particles and even distribution of the binder on the particles.
Durch dieses erfindungsgemäße Verfahren wird die Bildung von Faserzusammenballungen vermieden, so dass Leimfleckenbildung und auch insbesondere Beschädigungen an nachfolgenden Anlagenteilen wie Pressbänder verhindert werden.By this method according to the invention is The formation of fiber aggregates avoided, causing glue staining and in particular damage be prevented on subsequent system parts such as press belts.
Die
Die
zuvor aufbereiteten Holzfasern werden hierbei zunächst einem
nicht dargestellten Trockner zugeführt, in dem die Holzfasern
auf eine für
den Herstellungsprozess erforderliche Endfeuchte von ca. 3 – 20%, vorzugsweise
10 – 12%,
getrocknet werden. Im Anschluss an den Trockner, der ein üblicher Trockner,
beispielsweise ein Stromtrockner ist und der an dieser Stelle nicht
näher beschrieben
wird, werden die getrockneten Holzfasern zum Abtrennen der Trocknungsluft
einem Zyklon
Die
Förderleitung
Unmittelbar
vor dem Benetzungsabschnitt
In
Förderrichtung
sind längs
des Benetzungsabschnittes
Im
Anschluss an den Benetzungsabschnitt
Im
Anschluss an die Verweilzone
Im Anschluss an diesen Abschnitt durchlaufen die beleimten Fasern einen Zyklon und werden anschließend dem Streubunker zugeführt, der einer Formstation zugeordnet ist. Dort werden die beleimten Fasern zu einem Faservlies gestreut und anschließend zu Holzfaserplatten verpresst.in the Following this section, the glued fibers pass through one another Cyclone and will be afterwards supplied to the spreading bunker, which is assigned to a forming station. There are the glued Fibers to a nonwoven fabric and then pressed into wood fiber boards.
Das erfindungsgemäße Verfahren und die Vorrichtung wurde im Zuge der Herstellung von Holzfaserplatten beschrieben. Es ist selbstverständlich das anstelle von Holzfasern auch die eingangs aufgezählten rieselförmigen Güter verwendet werden können.The inventive method and the device was used in the manufacture of fiberboard described. It is of course that instead of wood fibers, the gushed goods listed at the beginning are also used can be.
Claims (8)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10336533A DE10336533A1 (en) | 2003-08-05 | 2003-08-05 | Method and apparatus for wetting pourable goods with a binder |
| DE502004010630T DE502004010630D1 (en) | 2003-08-05 | 2004-08-02 | Method and apparatus for wetting pourable goods with a binder |
| AT04018258T ATE454969T1 (en) | 2003-08-05 | 2004-08-02 | METHOD AND DEVICE FOR WETTING POUR-SHAPED GOODS WITH A BINDER |
| EP04018258A EP1504865B1 (en) | 2003-08-05 | 2004-08-02 | Method and apparatus for coating pourable materials with a binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10336533A DE10336533A1 (en) | 2003-08-05 | 2003-08-05 | Method and apparatus for wetting pourable goods with a binder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10336533A1 true DE10336533A1 (en) | 2005-02-24 |
Family
ID=33547161
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10336533A Withdrawn DE10336533A1 (en) | 2003-08-05 | 2003-08-05 | Method and apparatus for wetting pourable goods with a binder |
| DE502004010630T Expired - Lifetime DE502004010630D1 (en) | 2003-08-05 | 2004-08-02 | Method and apparatus for wetting pourable goods with a binder |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE502004010630T Expired - Lifetime DE502004010630D1 (en) | 2003-08-05 | 2004-08-02 | Method and apparatus for wetting pourable goods with a binder |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1504865B1 (en) |
| AT (1) | ATE454969T1 (en) |
| DE (2) | DE10336533A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008015419U1 (en) | 2008-11-21 | 2010-04-22 | Epple, Albrecht, Dr. | Device for gluing fibers in a blowpipe |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ530339A (en) | 2004-06-23 | 2007-01-26 | Nz Forest Research Inst Ltd | Method for producing wood fibre pellets |
| DE102008052961B4 (en) * | 2008-10-23 | 2016-07-28 | SWISS KRONO Tec AG | Process for the manufacture of wood-based materials |
| 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 |
| DE102024118839A1 (en) | 2024-07-03 | 2026-01-08 | Dieffenbacher GmbH Maschinen- und Anlagenbau | Pipe for applying a binding agent to fibers and arrangement of pipes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2850421A (en) * | 1953-03-31 | 1958-09-02 | George F Shea | Method for producing reinforced plastic, resinous, or like structural bodies, forms,linings, and coatings |
| US5071615A (en) * | 1988-05-19 | 1991-12-10 | Sven Fredriksson | Method and appartus for manufacturing fiber slabs |
| DE10061072A1 (en) * | 2000-12-08 | 2002-06-13 | Flakeboard Company Ltd St Step | To coat dry fibers with glue, for the production of fiberboards, they are carried through a shaft against the shaft wall by the centrifugal action from a rotating roller with surface pins, to be sprayed and ejected from the shaft outlet |
| DE19740676C2 (en) * | 1997-09-16 | 2003-07-17 | Fraunhofer Ges Forschung | Process for gluing fibers |
| DE10226820B3 (en) * | 2002-06-15 | 2004-04-01 | Flakeboard Company Limited, St.Stephen | Method and device for gluing dried fibers intended for the production of fiberboard |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1692852B1 (en) * | 1966-10-28 | 1971-06-24 | Fiskeby Ab | Method and device for treating wood chips |
| DE19506353A1 (en) * | 1995-02-23 | 1996-08-29 | Schenck Ag Carl | Method and device for wetting with a fluid |
| IT1307924B1 (en) * | 1999-01-25 | 2001-11-29 | Cmp Spa | GLUING MACHINE FOR PLANTS TO PRODUCE WOOD INFIBRA PANELS. |
| DE10153593B4 (en) * | 2001-11-02 | 2005-11-17 | Fritz Egger Gmbh & Co | Apparatus and method for wetting wood fibers with a binder fluid |
-
2003
- 2003-08-05 DE DE10336533A patent/DE10336533A1/en not_active Withdrawn
-
2004
- 2004-08-02 DE DE502004010630T patent/DE502004010630D1/en not_active Expired - Lifetime
- 2004-08-02 EP EP04018258A patent/EP1504865B1/en not_active Expired - Lifetime
- 2004-08-02 AT AT04018258T patent/ATE454969T1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2850421A (en) * | 1953-03-31 | 1958-09-02 | George F Shea | Method for producing reinforced plastic, resinous, or like structural bodies, forms,linings, and coatings |
| US5071615A (en) * | 1988-05-19 | 1991-12-10 | Sven Fredriksson | Method and appartus for manufacturing fiber slabs |
| DE19740676C2 (en) * | 1997-09-16 | 2003-07-17 | Fraunhofer Ges Forschung | Process for gluing fibers |
| DE10061072A1 (en) * | 2000-12-08 | 2002-06-13 | Flakeboard Company Ltd St Step | To coat dry fibers with glue, for the production of fiberboards, they are carried through a shaft against the shaft wall by the centrifugal action from a rotating roller with surface pins, to be sprayed and ejected from the shaft outlet |
| DE10226820B3 (en) * | 2002-06-15 | 2004-04-01 | Flakeboard Company Limited, St.Stephen | Method and device for gluing dried fibers intended for the production of fiberboard |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008015419U1 (en) | 2008-11-21 | 2010-04-22 | Epple, Albrecht, Dr. | Device for gluing fibers in a blowpipe |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE454969T1 (en) | 2010-01-15 |
| EP1504865B1 (en) | 2010-01-13 |
| EP1504865A3 (en) | 2005-05-04 |
| DE502004010630D1 (en) | 2010-03-04 |
| EP1504865A2 (en) | 2005-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8110 | Request for examination paragraph 44 | ||
| 8115 | Request for examination void | ||
| 8130 | Withdrawal |