EP1630264B1 - Dispositif et procédé pour le défibrage des plantes fibreuses libériennes - Google Patents

Dispositif et procédé pour le défibrage des plantes fibreuses libériennes Download PDF

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Publication number
EP1630264B1
EP1630264B1 EP04020221A EP04020221A EP1630264B1 EP 1630264 B1 EP1630264 B1 EP 1630264B1 EP 04020221 A EP04020221 A EP 04020221A EP 04020221 A EP04020221 A EP 04020221A EP 1630264 B1 EP1630264 B1 EP 1630264B1
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EP
European Patent Office
Prior art keywords
starting material
shaft
comminuted
drum
elements
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.)
Expired - Lifetime
Application number
EP04020221A
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German (de)
English (en)
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EP1630264A1 (fr
Inventor
Günter Butenuth
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.)
Farm-Container Maschinen Import und Export Gm GmbH
Original Assignee
Farm-Container Maschinen Import und Export GmbH 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 Farm-Container Maschinen Import und Export GmbH GmbH filed Critical Farm-Container Maschinen Import und Export GmbH GmbH
Priority to EP04020221A priority Critical patent/EP1630264B1/fr
Priority to DE502004005145T priority patent/DE502004005145D1/de
Priority to AT04020221T priority patent/ATE374849T1/de
Priority to ZA200500225A priority patent/ZA200500225B/xx
Priority to CA002496298A priority patent/CA2496298A1/fr
Priority to CN200510092302.7A priority patent/CN1740410B/zh
Publication of EP1630264A1 publication Critical patent/EP1630264A1/fr
Application granted granted Critical
Publication of EP1630264B1 publication Critical patent/EP1630264B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10—Separating vegetable fibres from stalks or leaves
    • D01B1/14—Breaking or scutching, e.g. of flax; Decorticating
    • D01B1/28—Breaking or scutching, e.g. of flax; Decorticating with beaters rotating about an axis perpendicular to the fibre bundle

Definitions

  • the invention relates to an apparatus and a method for defibering bast fiber plants, especially annual plants, such as flax, hemp, kenaf, oil and jute.
  • the fibers of the plant consist of fiber bundles. These have a different bundle length depending on the type of fiber. In hemp this is between about 650mm and about 3500mm, with flax between about 100mm and about 1400mm.
  • the individual fiber in the fiber bundle is connected by means of putty substances (pectin) with the other fibers.
  • pectin putty substances
  • the fiber cell of hemp has a length of about 10mm to about 50mm and that of flax has a length of about 5mm to about 70mm. This means that with higher fiber pulping and accordingly finer fiber a reduction is connected, which theoretically comes close to the length of the single cell.
  • the conditioning machine comprises a breaking device consisting of at least one pair of profiled crushing rollers for the woody outer layer of the fiber plants.
  • the breaking device is followed by a decortical device.
  • the Entholzungsvoriques may consist of paired, sprung and coarsely profiled on the outside conveyor belts, of which the upper conveyor belts perform in addition to their longitudinal movement nor a periodic transverse movement.
  • the broken wood parts are released from the fibers and embedded in the groove of the profiles.
  • a Conveyor belt and a conveyor drum combined with each other or two conveyor belts, which rotate at an acute angle to each other.
  • the document US 5,507,074 discloses a method of crushing a material, such as kenaf, to separate bast from the core.
  • the manufactured length of the crushed material is typically 3 to 5 inches (7.5 to 12.5 cm).
  • the document FR 1,066,514 describes a device having a plurality of rotating elements for processing fiber materials of plants, for example hemp plants.
  • a method for producing tangled fiber material from plant parts in which in a first step submitted crop is taken from a supply stack, in a second step, a material strand is formed with predominantly two-dimensional orientation of the plant parts is performed in a third step, the formed material strand in the work area of a treatment station, in a fourth step, the simultaneous crushing, fiberizing and separating fibers and non-fibrous components (shives) is made and in a fifth Working step, the separate removal of the random fiber material and the non-fibrous plant components takes place.
  • the simultaneous comminution, fiberizing and separating of the fibers and the shives in a processing station can be repeated by arranging at least two processing stations in a series connection.
  • the workstations have percussion tools with blunt hammer surfaces which serve to break up the plant parts and, to a lesser extent, separate the fiber components from the shives.
  • the object of the invention is to provide an improved apparatus and an improved method for defibering bast fiber plants, in particular of annual plants, in gentle processing stages in which the efficiency of the separation of fiber fractions and shives is increased. Moreover, it is an object of the invention to increase the proportion of fibers and / or shives with predetermined properties for further processing, in particular with a predetermined length.
  • a device for defibering bast fiber plants in particular annual plants such as flax, hemp, kenaf, oil and jute, with a comminution device for pre-comminuting a starting material and a buffer in which received the pre-shredded starting material and from which the pre-shredded starting material for a metered supply to a downstream Processing section for fiber pulping and separating fiber fractions and shives is discharged, wherein along the metered with the pre-shredded starting material processing section a series arrangement of a plurality of coarse digestion devices and a plurality of Feinaufschluß learneden is formed.
  • An expedient embodiment of the invention provides that one of the plurality of coarse digestion devices and one of the plurality of fine digestion devices are arranged alternately along the processing path, whereby an alternating coarse / fine digestion of the comminuted starting material can be carried out.
  • Combined with the plurality of coarse digestion devices and the plurality of Feinaufschluß noisyen can be provided in an embodiment of the invention in the array sieves and / or classifier, which serve for separating fiber components and shives along the processing line and / or at the end of the processing section. This can be done at the same time a classification and fractionation on the length of the fiber components / shives.
  • the plurality of coarse digestion devices each have a drum and arranged in the drum rotatable impact elements for processing the pre-shredded starting material, wherein the rotatable impact elements are arranged on a shaft and designed to be pivotable.
  • the impact elements are rotated to edit the material by means of a shaft in the drum and lead here because of the pivotal arrangement pivoting movements.
  • the use of such coarse digestion facilities has the Advantage that in this way compared to known high-speed rotating mills, such as hammer mills, more cost-effective way to coarse pulping of the starting material by shear, friction, impact and / or shock is created.
  • the rotatably mounted impact members are pivotally mounted on a shaft housing and about an axis parallel to the central axis of the shaft are pivotable.
  • hammer-like working impact elements are formed, which additionally pivot about an axis formed outside the central axis of the shaft when turning the shaft in the drum and thus work as a mallet.
  • an embodiment of the invention provides that the rotatably mounted impact elements are blade-shaped. In this way, in particular, it is achieved that the impact and entrainment effect which the impact elements exert on the material to be processed is improved.
  • the paddle-shaped striking elements have at a distal end to the shaft a blade surface which is curved in a direction along the shaft and / or in a direction transverse to the shaft, thereby further improving the transport of processing material is achieved in the coarse pulper.
  • the blade surfaces of impact elements in the longitudinal direction of the shaft adjacent and offset in the circumferential direction of the shaft are arranged so that a substantially closed surface is formed when these striking elements would be moved to a straight line in the longitudinal direction of the shaft.
  • the number and distribution of the impact elements on the shaft can also be chosen so that several times a substantially closed surface is formed. With the help of essentially closed surface of the energy input is optimized for the material to be processed.
  • the running properties of the coarse digestion device are improved in an expedient development of the invention in that the rotatably mounted impact elements are arranged on the shaft along one or more spiral lines extending in the longitudinal direction of the shaft. It can be provided that the rotatably mounted impact elements are positioned substantially along a spiral line extending around the shaft.
  • the impact elements may be arranged each suitably laterally offset to such a circumferential spiral line, so that they are positioned substantially along a spiral circumferential zigzag or curved line.
  • the arrangement along the spiral line prevents a pulsating operation, so that a higher stress of bearing elements is avoided. In addition, this ensures that no plant material sets and it comes to winding phenomena around the shaft.
  • a development of the invention may provide that the rotatably mounted impact elements have an outer striking surface with blunt edges.
  • the blunt formation of the edges avoids when processing the crushed starting material, that too unwanted cutting action results in the digestion of the starting material.
  • the impact effect is improved with the help of these embodiments.
  • an embodiment of the invention provides that a plurality of longitudinally extending impact elements are arranged on an inner wall of the drum.
  • the baffles may be, for example, angular or U-shaped baffles in which angled portions protrude from the inner wall.
  • the starting material in the comminution device is pre-shredded into pieces having a length of about 80 mm to about 120 mm, more preferably to a length of about 120 mm to about 160 mm and particularly preferably to a length of about 160 mm to about 200 mm.
  • the starting material is pre-comminuted to a desired initial length, which in turn substantially influences the length of these constituents obtained during digestion and separation of fiber fractions and shives.
  • Pre-shredding to such lengths also facilitates automated processing of the pre-shredded feedstock along the processing line in the plurality of coarse digestion devices and the plurality of fine digestion devices.
  • the separated in the course of the processing fiber portions after the digestion of the pre-shredded starting material have a length and fiber fineness, which ensure when using the fiber content in insulation products, such as insulation boards, the heat conductivity necessary for the insulation effect.
  • the described method for separating the fiber components can thus be used advantageously in conjunction with a method for producing an insulating product, in particular an insulating panel, such that the separated fiber components in a processing section downstream processing station with a base material, such as a plastic, mixed and to a Molded body.
  • the invention is explained below with reference to embodiments with reference to a drawing.
  • the single figure shows a schematic representation of an apparatus for defibering bast fiber plants, in particular renewable raw materials.
  • a starting material 1 is fed to a comminution device 2.
  • the starting material 1 is a stock of bast fiber plants, such as flax, hemp, kenaf, oil or jute.
  • the starting material 1 is comminuted in Halmabête uniform or approximately uniform length, namely pre-shortened.
  • the starting material 1 is preferably at a length of about 80mm to about 120mm, more preferably a length of about 120mm to about 160mm, and most preferably a length of about 160mm to about 200mm pre-shortened and then fed to the buffer 4.
  • the pre-shortened starting material 3 can be dispensed dosed on a conveyor 5, which serves to supply the pre-shortened starting material 3 a downstream processing section for unlocking and separating fiber fractions and shives.
  • the pre-shortened starting material 3 is fed via the conveyor 5 to a first dynamic digestion unit, which is a coarse digestion device 6, in which the pre-shortened starting material 3 is subjected to coarse digestion. In this processing stage, a first coarse separation of fibers and shives takes place.
  • the coarse digestion device 6 has a partially open lateral surface. In the open area of the lateral surface both an inlet opening for the intake of the material to be processed in the coarse pulper 6 and an outlet opening for discharging the processed material are formed, whereby a simplified structural design is achieved. Due to the centrifugal force, the machined material is thrown onto the conveyor 5 through the outlet opening, whereby a continuous removal is achieved.
  • a rotor is arranged, which is expediently formed by means of a shaft and equipped with blunt flat and / or curved striking elements.
  • the number of these impact elements on the rotor can be designed variably.
  • the striking elements are preferably along the rotor one or more extending around the rotor spiral lines arranged as individual elements on a rotatable shaft.
  • the separated shives are sieved through a sieving line.
  • the coarse digestion device 6 is followed by a fine digestion device 7, which is followed by a further coarse digestion device 8.
  • the comminuted starting material 3 is processed in two further Feinaufschluß drivingen 9, 10.
  • sieves / classifiers (not shown) can be combined with the coarse digestion devices 6, 8 and the fine digestion devices 7, 9, 10, which serve to separate the fiber portions and shives.
  • the arrangement of the coarse digestion devices 6, 8 and the fine digestion devices 7, 9, 10 shown in the figure is exemplary. Depending on the application, a combination of the devices in the series arrangement can be selected.
  • the coarse digestion devices 6, 8 are formed by means of a respective dynamic digestion device, which has a drum 6a, 8a and in the drum 6a, 8a rotatably mounted impact elements 6b, 8b.
  • the striking elements 6b, 8b made scoop or paddle-shaped and mounted on a shaft 11 which serves to turn the striking elements 6b, 8b in the drum 6a, 8a.
  • the impact elements 6b, 8b are pivotally mounted on the shaft 11 so that they can perform 11 additional pivoting movements during rotation of the shaft.
  • this type of attachment allows a time-saving and cost-effective replacement.
  • the impact elements 6b, 8b are preferably distributed along one or more spiral lines extending in the longitudinal direction of the shaft 11. In this way, the largest possible working width is created, which can extend for example over several meters, which allows a high throughput.
  • Blade or paddle surfaces of the impact members 6b, 8b are preferably dimensioned so that the paddle surfaces of impact members distributed along one or more of the spiral lines around the shaft 11 are adjacent in the longitudinal direction of the shaft 11 and in the circumferential direction the shaft are offset from each other and thus a substantially closed surface is formed when these striking elements would be moved to a straight line in the longitudinal direction of the shaft 11.
  • the number and distribution of the impact elements 6b, 8b on the shaft 11 can also be chosen so that a substantially closed surface is formed several times. With the help of the substantially closed surface of the energy input is optimized for the material to be processed.
  • baffles 6d, 8d are arranged, which are preferably formed as profiled retaining strips and serve to extend the residence time of the crushed starting material 3 in the respective drum 6a, 8a, which allows an increased energy input, thereby the defibration / decortication carried out by means of shear, friction, impact and / or impact is carried out more effectively.
  • the number and the distance of the baffle elements 6d, 8d, which are preferably fixed on the inner wall 6c, 8c, can be designed variably.
  • the plurality of baffles 6d, 8d may be angular or U-shaped elements in which angled legs project from the inner wall 6c, 8c.
  • the rotatably mounted impact elements 6b, 8b have an outer striking surface with one or more blunt edges.
  • the fine disintegration devices 7, 9, 10 each have static and rotating comb elements which engage in a spaced manner when the rotating comb elements are guided past the static comb elements during rotation.
  • the pulping method described in connection with the embodiment can be summarized as follows.
  • the coarse digestion 6 takes place a first rough separation of fibers and shives.
  • the separated shives are sieved through a sieving section (not shown). Siebumblen are known as such and are therefore not explained here.
  • the residual fraction is fed to the fine digestion device 7.
  • comb-like segments are included, which are arranged statically and rotationally and lead by means of interlocking comb elements to a separation of adhering shives and pre-dissolved fiber bundles.
  • the detached shives are then screened and the remaining material for a coarse digestion of the other coarse digestion device 8, which is comparable to the coarse pulper 6, respectively.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Paper (AREA)
  • Artificial Filaments (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Claims (18)

  1. Dispositif de défibrage de plantes fibreuses notamment de plantes annuelles telles que le lin, le chanvre, le kenaf, le lin oléagineux et la jute comprenant un hacheur (2) pour réduire préalablement la matière première (1) ainsi qu'un réservoir intermédiaire (4) recevant la matière première (3) réduite préalablement pour fournir cette matière première (3), réduite de manière dosée à un chemin de traitement en aval pour ouvrir les fibres et séparer la partie fibres des résidus,
    caractérisé en ce que
    le long du chemin de traitement recevant de façon dosée la matière première (3) préalablement réduite, on a une disposition en série de plusieurs installations d'ouverture grossière (6, 8) et de plusieurs installations d'ouverture fine (7, 9, 10).
  2. Dispositif selon la revendication 1,
    caractérisé par
    une alternance d'une ou plusieurs installations d'ouverture grossière (6, 8) et d'une ou plusieurs installations d'ouverture fine (7, 9, 10) le long du chemin de traitement.
  3. Dispositif selon l'une quelconque des revendications 1 ou 2,
    caractérisé par
    des tamis et/ou des séparateurs installés le long du chemin de traitement.
  4. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    plusieurs installations d'ouverture grossière (6, 8) comportent chacune un tambour (6a, 8a) et des éléments batteurs (6b, 8b) montés à rotation dans le tambour (6a, 8a) pour traiter la matière première (3) préalablement réduite, et les éléments batteurs (6b, 8b) rotatifs sont installés sur un arbre (11) et sont pivotants.
  5. Dispositif selon la revendication 4,
    caractérisé en ce que
    les éléments batteurs (6b, 8b) montés à rotation sont montés pivotants sur un boîtier d'arbre et peuvent pivoter autour d'un axe parallèle à l'axe de l'arbre (11).
  6. Dispositif selon l'une quelconque des revendications 4 ou 5,
    caractérisé en ce que
    les éléments batteurs (6b, 8b) montés à rotation ont une forme de pale.
  7. Dispositif selon la revendication 6,
    caractérisé en ce que
    les éléments batteurs (6b, 8b) en forme de pale ont une surface de pale à l'extrémité distale par rapport à l'arbre (11), cette surface en forme de pale est courbée dans la direction longitudinale de l'arbre (11) et/ ou dans une direction transversale à l'arbre (11).
  8. Dispositif selon l'une quelconque des revendications 4 à 7,
    caractérisé en ce que
    les éléments batteurs (6b, 8b) montés à rotation sur l'arbre (11) sont disposés le long d'une ou plusieurs lignes hélicoïdales dans la direction longitudinale de l'arbre (11).
  9. Dispositif selon l'une quelconque des revendications 4 à 8,
    caractérisé en ce que
    les éléments batteurs (6b, 8b) montés à rotation ont une surface de frappe extérieure munie d'arêtes émoussées.
  10. Dispositif selon l'une quelconque des revendications 4 à 9,
    caractérisé en ce que
    la paroi intérieure (6c, 8c) des tambours (6a, 8a) comporte plusieurs chicanes (6d, 8d) dirigées dans la direction longitudinale.
  11. Procédé de défibrage de plantes fibreuses notamment de plantes annuelles telles que le lin, le chanvre, le kenaf, le lin oléagineux et la jute, selon lequel on réduit préalablement la matière première (1) dans un hacheur (2) et selon lequel on stocke la matière première (3) préalablement réduite dans un réservoir intermédiaire (4) et à partir de ce réservoir intermédiaire (4), on alimente de façon dosée un chemin de traitement en aval et le long de ce chemin de traitement, on travaille le produit pour ouvrir les fibres et séparer les parties de fibres et les résidus,
    caractérisé en ce que
    l'on travaille la matière première (3) préalablement réduite, le long du chemin de traitement dans une succession de plusieurs installations d'ouverture grossière (6, 8) et de plusieurs installation d'ouverture fine (7, 9, 10).
  12. Procédé selon la revendication 11,
    caractérisé en ce qu'
    on réduit préalablement la matière première (1) dans le hacheur (2) en morceaux d'une longueur comprise entre environ 80 mm et 120 mm.
  13. Procédé selon la revendication 11,
    caractérisé en ce qu'
    on réduit préalablement la matière première (1) dans le hacheur (2) en morceaux d'une longueur comprise entre environ 120 mm et 160 mm.
  14. Procédé selon la revendication 11,
    caractérisé en ce qu'
    on réduit préalablement la matière première (1) dans le hacheur (2) en morceaux d'une longueur comprise entre environ 160 mm et 200 mm.
  15. Procédé selon l'une quelconque des revendications 11 à 14,
    caractérisé en ce qu'
    on sépare les parties de fibres et les résidus le long du chemin de traitement par des tamis et/ou des séparateurs.
  16. Procédé selon l'une quelconque des revendications 11 à 15,
    caractérisé en ce qu'
    on traite la matière première (3) préalablement réduite dans plusieurs installations d'ouverture grossière (6, 8), chaque fois dans un tambour (6a, 8a) avec des éléments batteurs (6b, 8b) montés à rotation dans les tambours (6a, 8a),
    les éléments batteurs (6b, 8b) montés à rotation étant installés sur l'arbre (11) et pouvant pivoter.
  17. Procédé selon la revendication 16,
    caractérisé en ce que
    la matière première (3), réduite, est traitée dans les tambours (6a, 8a) par la surface de frappe extérieure des éléments batteurs (6b, 8b) et au niveau de cette surface de frappe extérieure, on a des arêtes émoussées.
  18. Procédé selon l'une quelconque des revendications 16 ou 17,
    caractérisé en ce qu'
    on projette la matière première (3) préalablement réduite dans les tambours (6a, 8a) contre plusieurs chicanes (6d, 8d) dirigées dans la direction longitudinale, ces chicanes étant installées sur la paroi intérieure (6c, 8c) des tambours (6a, 8a).
EP04020221A 2004-08-26 2004-08-26 Dispositif et procédé pour le défibrage des plantes fibreuses libériennes Expired - Lifetime EP1630264B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP04020221A EP1630264B1 (fr) 2004-08-26 2004-08-26 Dispositif et procédé pour le défibrage des plantes fibreuses libériennes
DE502004005145T DE502004005145D1 (de) 2004-08-26 2004-08-26 Vorrichtung und Verfahren zum Entfasern von Bastfasergewächsen
AT04020221T ATE374849T1 (de) 2004-08-26 2004-08-26 Vorrichtung und verfahren zum entfasern von bastfasergewächsen
ZA200500225A ZA200500225B (en) 2004-08-26 2005-01-11 Apparatus and process for fibre release from bast fibre plants.
CA002496298A CA2496298A1 (fr) 2004-08-26 2005-02-07 Appareil et processus de defibrage de plantes a fibres liberiennes
CN200510092302.7A CN1740410B (zh) 2004-08-26 2005-08-26 用于韧皮纤维植物去纤维的装置和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04020221A EP1630264B1 (fr) 2004-08-26 2004-08-26 Dispositif et procédé pour le défibrage des plantes fibreuses libériennes

Publications (2)

Publication Number Publication Date
EP1630264A1 EP1630264A1 (fr) 2006-03-01
EP1630264B1 true EP1630264B1 (fr) 2007-10-03

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EP04020221A Expired - Lifetime EP1630264B1 (fr) 2004-08-26 2004-08-26 Dispositif et procédé pour le défibrage des plantes fibreuses libériennes

Country Status (6)

Country Link
EP (1) EP1630264B1 (fr)
CN (1) CN1740410B (fr)
AT (1) ATE374849T1 (fr)
CA (1) CA2496298A1 (fr)
DE (1) DE502004005145D1 (fr)
ZA (1) ZA200500225B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008253521B2 (en) * 2007-05-23 2014-08-14 Alberta Innovates - Technology Futures Decortication process
CN102978715B (zh) * 2012-12-11 2015-01-14 海南大学 田间处理香蕉茎秆纤维提取机
CN103061175B (zh) * 2012-12-21 2015-05-20 新疆博湖苇业股份有限公司 芦苇制浆备料装置及其使用方法
CN113501354B (zh) * 2021-08-04 2022-08-09 中国水产科学研究院渔业机械仪器研究所 一种海带漂烫前拆包均匀释放装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1066514A (fr) * 1951-11-19 1954-06-08 Machine à traiter et teiller les tiges fibreuses
FR1322981A (fr) * 1962-02-22 1963-04-05 Bessonneau Ets Nouveau procédé de préparation des fibres libériennes, et en particulier du chanvre et du lin
CN1003083B (zh) * 1987-06-03 1989-01-18 湖北省纺织工业科学研究所 苧麻纤维分离机
DE3815771A1 (de) * 1988-05-09 1989-11-23 Claas Saulgau Gmbh Aufbereitungsmaschine fuer faserpflanzen
CN2089937U (zh) * 1990-12-30 1991-12-04 山东省聊城地区农机研究所 一种植物韧皮剥取机
DE4119749A1 (de) * 1991-06-15 1992-12-17 Claas Ohg Verfahren zum entholzen von flachs und flachsaufbereitungsmaschine zur durchfuehrung dieses verfahrens
US5507074A (en) * 1995-02-24 1996-04-16 Mississippi State University Decorticating method for separating bast from core of forage chopped kenaf or the like
DE19518188C2 (de) * 1995-05-21 1998-06-10 Rolf Dr Hesch Verfahren zur Entfaserung bzw. Entholzung von Bastfasergewächsen

Also Published As

Publication number Publication date
CN1740410A (zh) 2006-03-01
DE502004005145D1 (de) 2007-11-15
CN1740410B (zh) 2010-07-21
EP1630264A1 (fr) 2006-03-01
ZA200500225B (en) 2005-07-11
CA2496298A1 (fr) 2006-02-26
ATE374849T1 (de) 2007-10-15

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