EP2677073A1 - Bamboo fibres suitable for the production of non-wovens - Google Patents
Bamboo fibres suitable for the production of non-wovens Download PDFInfo
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- EP2677073A1 EP2677073A1 EP13003107.3A EP13003107A EP2677073A1 EP 2677073 A1 EP2677073 A1 EP 2677073A1 EP 13003107 A EP13003107 A EP 13003107A EP 2677073 A1 EP2677073 A1 EP 2677073A1
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- bamboo
- fibers
- heating
- coated
- sticks
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
- D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4266—Natural fibres not provided for in group D04H1/425
Definitions
- the invention relates to bamboo fibers suitable for the production of nonwovens, to a process for producing such bamboo fibers, and to the use thereof for the production of fluidized nonwovens, which in turn can be used for the production of molded articles and technical composite materials.
- bamboo is now used increasingly in use.
- the exotic grass plant is used for parquet floors, roofs, toys, fittings in cars and furniture (eg Heilhansa exclusive 1/2013, pp. 60-65 ).
- bamboo is a fast growing resource.
- bamboo forests that are harvested and grow back quickly.
- bamboo fibers are also used in textiles, but only in a very small amount because the manufacturing process is too expensive.
- cotton fibers serve as the carrier fiber for the hard bamboo fibers.
- the fabric must no longer carry the designation of bamboo, since only 10% of the fiber is used. From bamboo poles are built in Asia very high scaffolding, which does not rot and therefore very safe (no water absorption).
- bamboo fibers unlike coal, glass, steel or aramid fibers have a large surface area due to their rough structure. This leads to a particularly intimate connection with the plastic matrix.
- bamboo fibers are also a renewable raw material, which is very inexpensive compared to the conventionally used fibers, but also compared to other natural fibers.
- bamboo fibers have an antibacterial effect, making their use in fiber-reinforced plastics for the medical field conceivable.
- a method of bamboo preparation is in US 4,857,145 proposed to be dissolved by the combination of different chemicals with the application of increased pressure pre-shredded bamboo in its fiber components and then as bamboo fiber pulp for further process steps z.
- B. pulp production is available.
- the so-called desizing with water is not a solution, since the necessary long storage in the water a digestion process is created which also attacks and damages the fibers. Thus, a dust-free opening is no longer possible.
- the bamboo fibers described in the abovementioned patent applications are not suitable for the production of nonwovens made of bamboo fibers.
- bamboo fibers are primarily intended for the production of fiber-reinforced molded parts, which are flame retardant and very light.
- the resulting composite materials should be shatter-proof.
- coal and ammnite fibers can be saved, thus reducing energy costs.
- the use of calcium oxide, also quick lime, quick lime, quicklime, lime or quicklime, facilitates the removal of the sugar components, especially lignin, and prevents fouling of the fibers and binder material.
- the white powder reacts with water with a strong evolution of heat, so you can do without preheating when using quicklime. Through the reaction with water while calcium hydroxide ( slaked lime, lime water ) is formed.
- the fibers are released from the line network and can be processed in the conventional method and disassembled into single fibers.
- microwaves having a frequency of 2.45 GHz or 915 MHz and a microwave power of 0.8 kW to 9.6 kW (12 ⁇ 0.8 kW) are used to heat the treated and washed bamboo material.
- the microwave used achieves a very uniform and rapid heating of the entire bamboo material, wherein overheating of the already dry surface can be avoided and the core water is transported by increasing the partial pressure of vapor in the product core quickly and continuously to the surface.
- the fibers obtained in this way can be dried in a manner known per se after wetting and, if appropriate, heating with one or more cascaded fiber openers, e.g. one or more sawtooth drums are opened.
- one or more cascaded fiber openers e.g. one or more sawtooth drums are opened.
- This method makes it possible to produce a very large amount of nonwoven bamboo fibers economically and without environmental impact.
- the method according to the invention makes it possible to defiberize large amounts of bamboo in an environmentally friendly manner.
- the fiber thus obtained naturally has a low water absorption. (no rotting), no odor (emulsions) and tensile strength, such as steel. This is the ideal fiber to arm plastic. Also as a building material it is suitable and much more.
- Another object of the invention is the use of the bamboo fibers according to the invention for producing a fluidized non-woven by mixing with binder fibers.
- nonwovens can be used for producing fiber-reinforced plastics and building materials. They can replace glass or carbon fibers, thermally or thermoset bonded.
- the short fibers resulting from the mechanical fibers can be sewn together again and processed as an endless mat.
- bamboo fibers in hole shapes can be deformed into contours by applying a negative pressure, in particular from vacuum.
- the structured bamboo materials thus obtained are outstandingly suitable for the production of insulation materials and / or filling material for seat cushions.
- Fig. 1 shown lateral view of a preferred embodiment of an apparatus for carrying out the inventive method for continuously producing a crushed, treated with an alkaline agent bamboo material comprises a height-adjustable bamboo magazine (1) for manual or automatic Remove the bamboo rods.
- the system according to the invention may have 1, 2 or more such magazines.
- the bamboo rods stored in the magazine (1) are moistened via the water spray device (2) by means of the lifting device (13) directly above the centered oblique inlet to the crusher rollers (3, 5).
- Each supply of bamboo tubes has an upper rigid crusher roller (3) and a lower sprung crusher roller (5) which adjusts to the dimension of the bamboo rods due to the roller suspension (12) with adjustable spring pressure.
- the bamboo material After passing through the crusher rollers (3,5), the bamboo material is further comminuted by the rotary cross cutter (10). If necessary, the bamboo material can then be rehydrated via the supply line (4) with further water.
- the container (6) is the powdery means for alkalinizing the moistened bamboo material to make the material fissile (preferably uncalcified lime powder) with integrated agitating means for transporting the powder.
- the in Fig. 3 shown fan (17) accelerates the application of the powdered lime to achieve a uniform coating.
- the mobile shredder is on rails (14) to fill several silos (9) lying one behind the other.
- the material is stored in the stack container 1 to 5, preferably 2 or 3 days.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Nonwoven Fabrics (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
Die vollständige Offenbarungen der zu Grunde liegenden Patentanmeldungen
Die Erfindung betrifft zur Herstellung von Vliesen geeignete Bambusfasern, ein Verfahren zur Herstellung solcher Bambusfasern, sowie die Verwendung derselben zur Herstellung von Wirbelvliesen, die wiederum zur Herstellung von Formkörpern und technischen Verbundmaterialien verwendet werden können.The invention relates to bamboo fibers suitable for the production of nonwovens, to a process for producing such bamboo fibers, and to the use thereof for the production of fluidized nonwovens, which in turn can be used for the production of molded articles and technical composite materials.
Bambus findet sich heutzutage im verstärkten Maß im Einsatz. Das exotische Grasgewächs wird für Parkettböden, Dächer, Spielsachen, Amaturen in PKWs und Möbel eingesetzt (z.B.
Bambusfasern sind - trotz ihrer grundsätzlichen Brennbarkeit - im Gegensatz zu vielen anderen Naturfasern relativ schwer entflammbar, was bereits bei einem unveredelten erfindungsgemässen Kunststoff zu einer erschwerten Entflammbarkeit führt. Gleichwohl lassen sich die erfindungsgemässen Kunststoffe, zu Entsorgungszwecken verbrennen.Bamboo fibers are - in spite of their fundamental flammability - in contrast to many other natural fibers relatively flame retardant, which is already an unrefined Plastic according to the invention leads to a difficult flammability. Nevertheless, the novel plastics can be burned for disposal purposes.
Hinzu kommt, dass Bambusfasern im getrockneten Zustand - wiederum im Gegensatz zu vielen anderen Naturfasern - praktisch keine Feuchtigkeitsaufnahme aufweisen.In addition, bamboo fibers in the dried state - again in contrast to many other natural fibers - have virtually no moisture absorption.
Bambusfasern weisen im Gegensatz zu Kohle-, Glas-, Stahl- oder Aramidfasern durch ihre raue Struktur eine große Oberfläche auf. Dies führt zu einer besonders innigen Verbindung mit der Kunststoffmatrix.Bamboo fibers, unlike coal, glass, steel or aramid fibers have a large surface area due to their rough structure. This leads to a particularly intimate connection with the plastic matrix.
Bambusfasern sind zudem ein nachwachsender Rohstoff, der im Vergleich zu den herkömmlicherweise verwendeten Fasern, aber auch im Vergleich zu anderen Naturfasern, sehr kostengünstig ist.Bamboo fibers are also a renewable raw material, which is very inexpensive compared to the conventionally used fibers, but also compared to other natural fibers.
Überdies haben Bambusfasern eine antibakterielle Wirkung, was Ihre Verwendung in faserverstärkten Kunststoffen für den medizinischen Bereich denkbar macht.Moreover, bamboo fibers have an antibacterial effect, making their use in fiber-reinforced plastics for the medical field conceivable.
Eine Methode zur Bambusaufbereitung wird in
In den beiden deutschen Patentanmeldungen
Weiterhin wird in der
Auch das so genannte Entzuckern mit Wasser stellt keine Lösung dar, da bei der notwendigen langen Lagerung im Wasser ein Faulungsprozess entsteht der auch die Fasern angreift und schädigt. Somit ist eine staubfreie Öffnung nicht mehr möglich. Die in den genannten Patentanmeldungen beschriebenen Bambusfasern eignen sich aber nicht zur Herstellung von aus Bambusfasern bestehenden Vliesen.Also, the so-called desizing with water is not a solution, since the necessary long storage in the water a digestion process is created which also attacks and damages the fibers. Thus, a dust-free opening is no longer possible. However, the bamboo fibers described in the abovementioned patent applications are not suitable for the production of nonwovens made of bamboo fibers.
Aufgabe der vorliegenden Erfindung war es somit Bambusfasern zur Verfügung zu stellen, welche die Nachteile der vorbekannten Bambusfasern nicht aufweisen und aus denen leicht in Vliese hergestellt werden können.It was therefore an object of the present invention to provide bamboo fibers which do not have the disadvantages of the previously known bamboo fibers and from which bamboo fibers can easily be produced.
Diese Bambusfasern sollen in erster Linie zu Herstellung von faserverstärkten Formteilen dienen, die schwer entflammbar und sehr leicht sind. Die so erhältlichen Verbundwerkstoffe sollen bruchsicherer sein. Auch können dabei Kohle- und Ammnitfaser eingespart und somit die Energiekosten reduziert werden.These bamboo fibers are primarily intended for the production of fiber-reinforced molded parts, which are flame retardant and very light. The resulting composite materials should be shatter-proof. In addition, coal and ammnite fibers can be saved, thus reducing energy costs.
Gegenstand der Erfindung sind somit zur Herstellung von Vliesen geeignete Bambusfasern erhältlich durch folgende Schritte:
- (i) Befeuchten und gegebenenfalls Erwärmen von Bambusstangen,
- (ii) Zerkleinern der angefeuchteten Bambusstangen,
- (iii) Behandlung des so erhaltenen Bambusmaterials mit einem alkalischen Mittel, insbesondere mit ungelöschtem Kalk in Pulverform,
- (iv) Schneiden des Bambusmaterials auf Faserlänge,
- (v) Waschen und Trocknen der so erhaltenen Bambusfasern, und
- (vi) Erwärmen, wobei das Erwärmen durch Mikrowellen erfolgt.
- (i) moistening and optionally heating bamboo sticks,
- (ii) crushing the moistened bamboo sticks,
- (iii) treating the bamboo material thus obtained with an alkaline agent, in particular with quicklime in powder form,
- (iv) cutting the bamboo material to fiber length,
- (v) washing and drying the bamboo fibers thus obtained, and
- (vi) heating, wherein the heating is done by microwaves.
Der Einsatz von Calciumoxid, auch gebrannter Kalk, Branntkalk, ungelöschter Kalk, Kalkerde oder Ätzkalk erleichtert das Entfernen der Zuckerbestandteile, insbesondere von Lignin und verhindert, dass ein Verfaulen der Fasern und des Bindematerials eintritt. Das weiße Pulver reagiert mit Wasser unter starker Wärmeentwicklung, daher kann bei Einsatz von ungelöschem Kalk auf vorheriges Erwärmen verzichtet werden. Durch die Reaktion mit Wasser wird dabei Calciumhydroxid (gelöschter Kalk, Kalkwasser) gebildet.The use of calcium oxide, also quick lime, quick lime, quicklime, lime or quicklime, facilitates the removal of the sugar components, especially lignin, and prevents fouling of the fibers and binder material. The white powder reacts with water with a strong evolution of heat, so you can do without preheating when using quicklime. Through the reaction with water while calcium hydroxide ( slaked lime, lime water ) is formed.
Erst nach einer gewissen Verweilzeit in dieser Lösung werden die Fasern aus dem Linienverbund freigegeben und können im herkömmlichen Verfahren weiterverarbeitet und in Einzelfasern zerlegt werden.Only after a certain residence time in this solution, the fibers are released from the line network and can be processed in the conventional method and disassembled into single fibers.
Vorzugsweise werden zum Erwärmen des behandelten und gewaschenen Bambusmaterials Mikrowellen mit einer Frequenz von 2,45 GHz oder 915 MHz und einer Mikrowellenleistung von 0,8 kW bis 9,6 kW (12 x 0,8 kW) eingesetzt.Preferably, microwaves having a frequency of 2.45 GHz or 915 MHz and a microwave power of 0.8 kW to 9.6 kW (12 × 0.8 kW) are used to heat the treated and washed bamboo material.
Die eingesetzte Mikrowelle erreicht eine sehr gleichmäßige und rasche Erwärmung des gesamten Bambusmaterials, wobei eine Überhitzung der schon trockenen Oberfläche vermieden werden kann und das Kernwasser durch die Erhöhung des Dampfpartialdruckes im Produktkern schnell und kontinuierlich an die Oberfläche transportiert wird.The microwave used achieves a very uniform and rapid heating of the entire bamboo material, wherein overheating of the already dry surface can be avoided and the core water is transported by increasing the partial pressure of vapor in the product core quickly and continuously to the surface.
Anschließend können die so erhaltenen Fasern in an sich bekannter Weise nach Anfeuchten und gegebenenfalls Erwärmen mit einem oder mehreren hintereinandergeschalteten Faseröffnern, z.B. einem oder mehreren Sägezahntambouren geöffnet werden.Subsequently, the fibers obtained in this way can be dried in a manner known per se after wetting and, if appropriate, heating with one or more cascaded fiber openers, e.g. one or more sawtooth drums are opened.
Dies erfolgt vorzugsweise durch Einführung des so erhalten Bambusmaterials entlang seiner Faserrichtung.This is preferably done by introducing the thus obtained bamboo material along its fiber direction.
Weiterhin Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Bambusfasern aus Rohbambus, wobei man die Bambusstangen nacheinander folgender Schritte unterwirft:
- (a) Befeuchten und gegebenenfalls Erwärmen von Bambusstangen,
- (b) Zerkleinern der angefeuchteten Bambusstangen,
- (c) Beschichtung des so erhaltenen Bambusmaterials mit einem alkalischen Mittel, insbesondere mit ungelöschtem Kalk in Pulverform,
- (d) Schneiden des Bambusmaterials auf Faserlänge,
- (e) Waschen und Trocknen der so erhaltenen Bambusfasern, und
- (f) Erwärmen in der Mikrowelle.
- (a) moistening and optionally heating bamboo sticks,
- (b) crushing the moistened bamboo sticks,
- (c) coating the bamboo material thus obtained with an alkaline agent, in particular with quicklime in powder form,
- (d) cutting the bamboo material to fiber length,
- (e) washing and drying the bamboo fibers thus obtained, and
- (f) heating in the microwave.
Dieses Verfahren ermöglicht es, eine sehr große Menge der vliesbaren Bambusfasern ökonomisch und ohne Umweltbelastung herzustellen.This method makes it possible to produce a very large amount of nonwoven bamboo fibers economically and without environmental impact.
Weiterhin erlaubt es das erfindungsgemäße Verfahren große Mengen an Bambus umweltfreundlich zu zerfasern. Die so erhaltene Faser hat von Natur aus eine geringe Wasseraufnahme. (kein verfaulen), keine Geruchsbelästigung (Emulsionen) und eine Zugfestigkeit, wie Stahl. Dies ist die ideale Faser, um Kunststoff zu armieren. Auch als Baumaterial ist sie geeignet und noch vieles mehr.Furthermore, the method according to the invention makes it possible to defiberize large amounts of bamboo in an environmentally friendly manner. The fiber thus obtained naturally has a low water absorption. (no rotting), no odor (emulsions) and tensile strength, such as steel. This is the ideal fiber to arm plastic. Also as a building material it is suitable and much more.
Auf Grund des erfindungsgemäßen Verfahrens ist es möglich mehrere Tonnen Bambus mit einer Anlage an einem Tag zu verarbeiten, vorzugsweise können 2 bis 20 t, insbesondere 5 bis 15 t, ganz besonders bevorzugt etwa10 t Bambus pro Tag und Anlage verarbeitet werden.Due to the method according to the invention it is possible to process several tons of bamboo with a plant in one day, preferably 2 to 20 tons, especially 5 to 15 tons, most preferably about 10 tons of bamboo per day and plant can be processed.
Ein weiterer Gegenstand der Erfindung ist die Verwendung der erfindungsgemäßen Bambusfasern zur Herstellung eines Wirbelvlieses durch Vermischen mit Bindefasern.Another object of the invention is the use of the bamboo fibers according to the invention for producing a fluidized non-woven by mixing with binder fibers.
Diese Vliese können zum Herstellen von faserverstärkten Kunststoffen und Baumaterialien eingesetzt werden. Sie können Glas-oder Kohlefasern ersetzen, thermisch oder duroplastisch gebunden.These nonwovens can be used for producing fiber-reinforced plastics and building materials. They can replace glass or carbon fibers, thermally or thermoset bonded.
Die beim mechanischen Fasern entstehenden kurzen Fasern können wieder zusammen genäht werden und als Endlos-Matte verarbeitet werden.The short fibers resulting from the mechanical fibers can be sewn together again and processed as an endless mat.
Bambusfasern in Lochformen können durch Anlegen eines Unterdruckes, insbesondere von Vakuum zu Konturen verformt werden.Die so erhaltenen strukturierten Bambusmaterialien eignen sich vorzüglich zur Herstellung von Isolationsmaterialien und/oder Füllmaterial für Sitzpolster.Bamboo fibers in hole shapes can be deformed into contours by applying a negative pressure, in particular from vacuum. The structured bamboo materials thus obtained are outstandingly suitable for the production of insulation materials and / or filling material for seat cushions.
-
Fig. 1 zeigt eine seitliche Ansicht einer bevorzugten Ausführungsform einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens zum kontinuierlichen Herstellen eines zerkleinerten, mit einem alkalischen Mittel behandelten Bambusmaterials.Fig. 1 shows a side view of a preferred embodiment of an apparatus for carrying out the method according to the invention for the continuous production of a crushed, treated with an alkaline agent bamboo material. -
Fig. 2 zeigt eine schematische Darstellung einer derselben bevorzugten Ausführungsform von oben mit anschließender Mikrowelle.Fig. 2 shows a schematic representation of a same preferred embodiment of the above with subsequent microwave. -
Fig. 3 zeigt eine seitliche Ansicht derselben bevorzugten Ausführungsform, wobei das behandelte Bambusmaterial zum Verweilen mehreren Silos zugeführt wird.Fig. 3 shows a side view of the same preferred embodiment, wherein the treated bamboo material is fed to stay several silos.
Bevorzugte Ausführungsformen der erfindungsgemäßen, vliesbaren·Bambusfasern sind solche, wobei
- (A) das Bambusmaterial in Schritt (iii) mit Pulver aus gebranntem Kalk beschichtet wird, insbesondere werden dabei auf 10
kg Bambusstangen 0,1 1,5 kg ungelöschter Kalk eingesetzt;bis - (B) die Bambusfasern im Wesentlichen Ligninfrei sind; und/oder
- (C) die nach Schritt (vi) erhältlichen Bambusfasern nach Befeuchten und gegebenenfalls Erwärmen mit einem oder mehreren Faseröffnern behandelt werden.
- (A) the bamboo material in step (iii) is coated with quick lime powder, in particular 0.1 to 1.5 kg of quicklime is used on 10 kg of bamboo poles;
- (B) the bamboo fibers are essentially lignin free; and or
- (C) the bamboo fibers obtainable after step (vi) are treated with one or more fiber openers after wetting and optionally heating.
Bevorzugte Ausführungsformen des erfindungsgemäßen Verfahrens zur Herstellung von vliesbaren Bambusfasern sind solche, wobei
- (I) in Schritt (b) die angefeuchteten Bambusstangen mit Hilfe von gefederten Brechwalzen, die sich elastisch auf die Dimension der Bambusstangen einstellen, insbesondere wobei die untere Walze starr gelagert wird und vorgelagerte Einzugswalze aufweist, zerkleinert werden;
- (II) die Bambusstangen über ein fahrbares Bambuslager mit einer Materialhebeeinrichtung in eine Einzugsrille zugeführt werden;
- (III) ein fahrbarer Materialzubringer ein oder mehrere Lagersilos gleichmäßig mit dem beschichteten Bambusmaterial füllt;
- (IV) zwei oder mehrere in einer Reihe oder einem Kreis angeordnete Silos zur Lagerung des mit Kalk beschichteten Bambusmaterials dienen;
- (V) das beschichtete Bambusmaterial mit fließendem Wasser in einem Kaskadenabscheider gewaschen wird, wobei der eingesetzte Kalk zurückgewonnen werden kann; und/oder
- (VI) das gewaschene Bambusmaterial einem Trockner mit vorgeschaltetem Reinigungsgebläse dem Mikrowellenofen zugeführt wird.
- (I) in step (b), the wetted bamboo rods are crushed by means of sprung crushing rollers that adjust elastically to the dimension of the bamboo rods, in particular with the lower roller being rigidly mounted and having upstream feed rollers;
- (II) the bamboo rods are fed via a mobile bamboo bearing with a material lifting device in a feed groove;
- (Iii) a moveable material feeder evenly fills one or more storage silos with the coated bamboo material;
- (IV) serve two or more silos arranged in a row or circle for storage of the lime-coated bamboo material;
- (V) washing the coated bamboo material with running water in a cascade separator, whereby the lime used can be recovered; and or
- (VI) the washed bamboo material is fed to a dryer with upstream cleaning fan the microwave oven.
Die in
Die im Magazin (1) gelagerten Bamusstangen werden über die Wassersprüh-Einrichtung (2), mit Hilfe der Hebeeinrichtung (13) direkt über dem zentrierten schrägen Zulauf zu den Brecherwalzen (3, 5) angefeuchtet.The bamboo rods stored in the magazine (1) are moistened via the water spray device (2) by means of the lifting device (13) directly above the centered oblique inlet to the crusher rollers (3, 5).
Jede Zufuhr von Bambusrohren weist eine obere starre Brecherwalze (3) und eine untere gefederte Brecherwalze (5), die sich auf die Dimension der Bambusstangen auf Grund der Walzenfederung (12) mit einstellbarem der Federndruck einstellt. Nach dem Durchlauf durch die Brecherwalzen (3,5) wird das Bambusmaterial durch den Rotationsquerschneider (10) weiter zerkleinert. Gegebenenfalls kann das Bambusmaterial danach über die Zuleitung (4) mit weiterem Wasser nachbefeuchtet werden.Each supply of bamboo tubes has an upper rigid crusher roller (3) and a lower sprung crusher roller (5) which adjusts to the dimension of the bamboo rods due to the roller suspension (12) with adjustable spring pressure. After passing through the crusher rollers (3,5), the bamboo material is further comminuted by the rotary cross cutter (10). If necessary, the bamboo material can then be rehydrated via the supply line (4) with further water.
In dem Behälter(6) befindet sich das pulverförmige Mittel zum alkalisieren des angefeuchteten Bambusmaterials, um das Material spaltbar zu machen, (bevorzugt ist ungelöschtes Kalkpulver), mit integrierter Rühreinrichtung, um das Pulver transportierbar zu erhalten. Der in
Die in
Über den in
Das Material wird im Stapelbehälter 1 bis 5, vorzugsweise 2 oder 3 Tage gelagert.The material is stored in the
Nach dem Verweilen in den Silos (9) wid das Bambusmaterial wie in
Claims (15)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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DE102012012031 | 2012-06-19 | ||
DE102012021907 | 2012-11-09 | ||
DE102012021908 | 2012-11-09 | ||
DE201310001262 DE102013001262A1 (en) | 2013-01-26 | 2013-01-26 | Bamboo fibers obtainable by wetting bamboo poles, crushing wetted poles, treating obtained bamboo material with alkaline agent, cutting material, washing and drying bamboo fibers and heating using microwave, useful e.g. for producing fleece |
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EP2677073A1 true EP2677073A1 (en) | 2013-12-25 |
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EP13003107.3A Withdrawn EP2677073A1 (en) | 2012-06-19 | 2013-06-19 | Bamboo fibres suitable for the production of non-wovens |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202016002946U1 (en) | 2016-05-03 | 2017-08-04 | Spengler Technology GmbH | Composite material |
CN110067030A (en) * | 2019-04-28 | 2019-07-30 | 中南林业科技大学 | A kind of bamboo wood extracts the preprocess method and device of vascular bundle fiber |
CN111423166A (en) * | 2020-03-23 | 2020-07-17 | 南京林业大学 | Short-cut bamboo chip reinforced concrete and processing method thereof |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US4857145A (en) | 1987-07-13 | 1989-08-15 | Process Evaluation And Development Corporation | Process for making a pulp from bamboo |
GB2251002A (en) * | 1990-12-17 | 1992-06-24 | Ask Corp | Method of forming bamboo fibres and a resin moulding reinforced with bamboo fibre |
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EP2322713A1 (en) * | 2009-11-11 | 2011-05-18 | Aarsen Holding B.V. | Method for producing bamboo fibres as well as plastics containing same |
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US4857145A (en) | 1987-07-13 | 1989-08-15 | Process Evaluation And Development Corporation | Process for making a pulp from bamboo |
GB2251002A (en) * | 1990-12-17 | 1992-06-24 | Ask Corp | Method of forming bamboo fibres and a resin moulding reinforced with bamboo fibre |
EP1130139A1 (en) * | 2000-03-02 | 2001-09-05 | Aston AG | Arrangement and method for obtaining and processing of growing up fibrous raw materials |
DE10115831A1 (en) | 2001-03-31 | 2002-10-17 | Lothar Rauer | Recovery of bamboo fibers, for the reinforcement of an organic and/or mineral matrix, has one or more fiber reduction stages fed with heated and unheated air |
WO2003070656A1 (en) * | 2002-02-25 | 2003-08-28 | Foundation For Development Aid Acp-Eec Asbl | Fibrous non-woven material, non-woven body and non-woven composite body, method for producing a fibrous non-woven material, and use of the same |
US20070267159A1 (en) * | 2002-04-10 | 2007-11-22 | Zigun Zhao | Bamboo fibre and its manufacture |
DE102005060500A1 (en) | 2005-12-15 | 2007-06-21 | Witthaus, Bernd, Prof. Dr. | Plastic article reinforced with bamboo fibers, useful e.g. for preparation of parts for vehicles, pipes and doors, can be recycled |
EP2322713A1 (en) * | 2009-11-11 | 2011-05-18 | Aarsen Holding B.V. | Method for producing bamboo fibres as well as plastics containing same |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202016002946U1 (en) | 2016-05-03 | 2017-08-04 | Spengler Technology GmbH | Composite material |
CN110067030A (en) * | 2019-04-28 | 2019-07-30 | 中南林业科技大学 | A kind of bamboo wood extracts the preprocess method and device of vascular bundle fiber |
CN111423166A (en) * | 2020-03-23 | 2020-07-17 | 南京林业大学 | Short-cut bamboo chip reinforced concrete and processing method thereof |
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