EP1335818B1 - Method for producing wood chips - Google Patents
Method for producing wood chips Download PDFInfo
- Publication number
- EP1335818B1 EP1335818B1 EP01997378A EP01997378A EP1335818B1 EP 1335818 B1 EP1335818 B1 EP 1335818B1 EP 01997378 A EP01997378 A EP 01997378A EP 01997378 A EP01997378 A EP 01997378A EP 1335818 B1 EP1335818 B1 EP 1335818B1
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- European Patent Office
- Prior art keywords
- intermediate product
- chips
- ring axis
- wood
- blades
- Prior art date
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- Expired - Lifetime
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
- B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
Definitions
- the invention relates to a method for producing OS wood chips.
- a method for producing chips for the production of plates with the following method steps is known: it is produced from fresh wood or recycled wood, a precursor, the precursor is substantially rod-shaped, the precursor is fed to a chipper, comprising a Variety of knives, which are arranged on a knife ring whose cutting edges are at least approximately parallel to the ring axis, and which enclose a working space; the precursor is set in rotation about the knife ring axis, in this case aligned so that it is substantially parallel to the ring axis and is pressed by centrifugal force against the cutting edges of the knife; the precursor has a length of several centimeters.
- the first system concerns so-called direct chipper.
- Unaligned round wood is fed to a gutter.
- a knife ring Parallel to the steering axis of the wood, a knife ring is arranged, which is equipped on its circumference with a variety of knives. The knives run with their cutting edges parallel to the knife ring.
- the knife ring is movable in such a way that it can dive into the mass of round logs and can machine them. See, for example, DE 29 47 199 C1.
- Another type of direct chipper which belongs to the said first system, has a rotatably mounted disc.
- the disc carries on its one side surface Zerspanermesser.
- the round logs or tree trunks are fed to this work surface parallel to the fiber. Since the peripheral speeds of individual surface elements of the work surface are different in size, depending on whether the surface element is located radially inward or radially outward, the result of the cutting is also different, which impairs the quality.
- OS chips Oriented Strand
- the fibers of these chips run in the longitudinal direction of the Spanes.
- the chip is extremely thin. It serves for the production of the same named plates, so-called OSB plates. These are considered high quality. They have a high strength, so that they can be used as construction elements, for example, for prefabricated houses.
- Said second system uses so-called knife ring chipper.
- This comprises a ring or wreath of knives whose edges extend at least substantially parallel to the ring axis.
- the knife ring encloses a working space in which the wood chips are introduced in a radially inner region through a filling shaft.
- a rotor hurls the chips radially outward against the inner surface of the knife ring and thus against the cutting edges of the knife, where a cutting takes place.
- the chips that can be made using a knife ring chipper differ fundamentally from the OS chips produced by the former category of machines that operate according to the former system. They are essentially pen-shaped and remind of thin matches. These chips can only be processed into chipboard. However, chipboard have only limited strength, in particular no special flexural strength. They can not be used as construction elements, but are used in the furniture industry.
- Chippers are smaller, more flexible and less expensive to buy.
- the invention has for its object to provide a method with which both so-called fresh wood and recycled wood can be used as a precursor, which has significantly lower construction volumes than the known Schwarzzerspaner, which therefore requires lower investment costs and is flexible in use, and the OSB Generated chips.
- the inventor has thus solved a common prejudice. He has resorted to the basic features of the Messerringzerspaners, but fundamentally changed the boundary conditions. This concerns the selection of the dimensions of the precursor. This has a larger dimension in a first extension than in a vertical extension, so that it could be referred to as rod-shaped.
- the method according to the invention can - as mentioned - basically produce high-quality OSB chips, but at the same time also chips of lower quality. If different categories of chips are generated, they can be classified by a subsequent classification step.
- the chipper comprises a rotor 1, which is driven by a shaft 2.
- the rotor 1 contains a ring of axially parallel blades 3.
- a knife basket with also axially parallel blades 4 surrounds the rotor 1.
- Rotor 1 and knife basket are in turn arranged in a housing 5 and together of this enclosed.
- Housing 5 has an inlet 6 for the wood chips to be supplied and an outlet for the finished chip.
- Figure 2 illustrates in two places a rod-shaped precursor 20. This is ordered in the present case as a regular rectangular block. Instead, however, this precursor could also be designed differently, for example, have irregular boundary surfaces. It is only important that this precursor 20 is more or less rod-shaped, d. H. has a longitudinal extent which is greater than the transverse extensions in perpendicular planes.
- the precursor 20 is fed to the shaft-shaped inlet 6 - see arrow. It then passes into the space enclosed by the rotor 1 interior.
- the precursor 20 sets - automatically or by a corresponding orientation device - such that it extends mainly to the longitudinal axis of the rotor shaft 2, and thus more or less parallel to the blades 4.
- the precursor has a considerable size, in particular a considerable length compared with those chips, which are fed to the usual Messerringzerspannern.
- FIG. 3 shows a knife package in an axially perpendicular section. This knife package is part of the knife ring of the machine.
- Each knife package is constructed as follows: A support block 10 carries a cutting blade 11 which is fixed by means of a clamping plate 12 and a screw 13 on the support block 10.
- Each support block 10 has a wear surface 10.1. It is crucial that these machine axis facing wear surface 10.1 are approximately flat and thus not concentric as in the prior art.
- the wear surface 10.1 is formed in the case of Figure 3 from a wear plate 10.2, which in turn is attached to the rest of the support block 10.
- the wear surface can also be formed from a wear layer that has been produced by applying a wear layer, preferably by build-up welding or spraying and subsequent grinding.
- a razor 14 is provided, which is fastened on the side of the supporting block 10 opposite the cutting blade 11, and which cooperates with the cutting blade of the adjacent blade package.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
- Crushing And Pulverization Processes (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Erzeugen von OS-Spänen aus Holz. Aus US 2 874 909 A ist ein Verfahren zum Erzeugen von Spänen für die Herstellung von Platten mit den folgenden Verfahrensschritten bekannt: es wird aus Frischholz oder Recyclingholz ein Vorprodukt erzeugt, das Vorprodukt ist im wesentlichen stabförmig, das Vorprodukt wird einem Zerspaner zugeführt, umfassend eine Vielzahl von Messern, die auf einem Messerring angeordnet sind, deren Schneiden wenigstens annähernd parallel zur Ringachse verlaufen, und die einen Arbeitsraum umschließen; das Vorprodukt wird um die Messeringachse herum in Umdrehung versetzt, hierbei derart ausgerichtet, dass es im wesentlichen parallel zur Ringachse liegt und durch Fliehkraft gegen die Schneiden der Messer angedrückt wird; das Vorprodukt hat eine Länge von mehreren Zentimetern. Dabei gibt es grundsätzlich zwei Systeme, die voneinander grundverschieden sind und die auch demgemäß unterschiedliche Produkte erzeugen.The invention relates to a method for producing OS wood chips. From US 2,874,909 A a method for producing chips for the production of plates with the following method steps is known: it is produced from fresh wood or recycled wood, a precursor, the precursor is substantially rod-shaped, the precursor is fed to a chipper, comprising a Variety of knives, which are arranged on a knife ring whose cutting edges are at least approximately parallel to the ring axis, and which enclose a working space; the precursor is set in rotation about the knife ring axis, in this case aligned so that it is substantially parallel to the ring axis and is pressed by centrifugal force against the cutting edges of the knife; the precursor has a length of several centimeters. There are basically two systems that are fundamentally different from each other and thus also produce different products.
Das erste System betrifft sogenannte Direktzerspaner. Dabei wird nichtabgelängtes Rundholz einer Rinne zugeführt. Parallel zur Lenkachse des Holzes ist eine Messerring angeordnet, die auf ihrem Umfang mit einer Vielzahl von Messern bestückt ist. Die Messer verlaufen mit ihren Schneiden parallel zur Messerring. Die Messerring ist derart verfahrbar, daß sie in die Masse der Rundhölzer eintauchen und diese zerspanen kann. Siehe beispielsweise DE 29 47 199 C1.The first system concerns so-called direct chipper. Unaligned round wood is fed to a gutter. Parallel to the steering axis of the wood, a knife ring is arranged, which is equipped on its circumference with a variety of knives. The knives run with their cutting edges parallel to the knife ring. The knife ring is movable in such a way that it can dive into the mass of round logs and can machine them. See, for example, DE 29 47 199 C1.
Eine weitere Bauart von Direktzerspanem, die dem genannten ersten System angehört, weist eine drehbar gelagerte Scheibe auf. Die Scheibe trägt auf ihrer einen Seitenfläche Zerspanermesser. Die Rundhölzer oder Baumstämme werden dieser Arbeitsfläche parallel zur Faser zugeführt. Da die Umfangsgeschwindigkeiten einzelner Flächenelemente der Arbeitsfläche unterschiedlich groß sind, je nachdern, ob das Flächenelement radial innen oder radial außen liegt, ist auch das Zerspanungsergebnis unterschiedlich, was die Qualität beeinträchtigt.Another type of direct chipper, which belongs to the said first system, has a rotatably mounted disc. The disc carries on its one side surface Zerspanermesser. The round logs or tree trunks are fed to this work surface parallel to the fiber. Since the peripheral speeds of individual surface elements of the work surface are different in size, depending on whether the surface element is located radially inward or radially outward, the result of the cutting is also different, which impairs the quality.
Die genannten Maschinen, die dem ersten System angehören, dienen vor allem zum Erzeugen von sogenannten OS-Spänen ("Oriented Strang"). Dabei verlaufen die Fasern dieser Späne in Längsrichtung des Spanes. Der Span ist außerordentlich dünn. Er dient zum Herstellen gleichnamiger Platten, sogenannter OSB-Platten. Diese gelten als hochwertig. Sie haben eine große Festigkeit, so daß sie sich als Konstruktionselemente verwenden lassen, beispielsweise für den Fertighausbau.The mentioned machines, which belong to the first system, serve above all for the production of so-called OS chips ("Oriented Strand"). The fibers of these chips run in the longitudinal direction of the Spanes. The chip is extremely thin. It serves for the production of the same named plates, so-called OSB plates. These are considered high quality. They have a high strength, so that they can be used as construction elements, for example, for prefabricated houses.
Das genannte zweite System verwendet sogenannte Messerringzerspaner. Dieser umfaßt einen Ring oder Kranz aus Messern, deren Schneiden wenigstens im wesentlichen parallel zur Ringachse verlaufen. Der Messerring umschließt einen Arbeitsraum, in dem die Hackschnitzel in einem radial inneren Bereich durch einen Einfüllschacht eingeführt werden. Ein Rotor schleudert die Hackschnitzel radial nach außen gegen die Innenfläche des Messerringes und damit gegen die Schneiden der Messer, wo eine Zerspanung erfolgt.Said second system uses so-called knife ring chipper. This comprises a ring or wreath of knives whose edges extend at least substantially parallel to the ring axis. The knife ring encloses a working space in which the wood chips are introduced in a radially inner region through a filling shaft. A rotor hurls the chips radially outward against the inner surface of the knife ring and thus against the cutting edges of the knife, where a cutting takes place.
Die mittels eines Messerringzerspaners herstellbaren Späne unterscheiden sich ganz grundlegend von den OS-Spänen, erzeugt durch die erstgenannte Kategorie von Maschinen, die nach dem erstgenannten System arbeiten. Sie sind im wesentlichen stiftförmig und erinnern an dünne Streichhölzer. Diese Späne lassen sich nur zu Spanplatten verarbeiten. Spanplatten haben jedoch nur eine begrenzte Festigkeit, insbesondere keine besondere Biegefestigkeit. Sie lassen sich somit nicht als Konstruktionselemente verwenden, sondern finden in der Möbelindustrie Anwendung.The chips that can be made using a knife ring chipper differ fundamentally from the OS chips produced by the former category of machines that operate according to the former system. They are essentially pen-shaped and remind of thin matches. These chips can only be processed into chipboard. However, chipboard have only limited strength, in particular no special flexural strength. They can not be used as construction elements, but are used in the furniture industry.
Die Vor- und Nachteile von Maschinen des erstgenannten Systems - Direktzerspaner zum Erzeugen von OS-Spänen -, und des zweitgenannten Systemes mit der vorgeschalteten Stufe zum Erzeugen von Hackschnitzeln und dem Endergebnis der Späne für Spanplatten lassen sich wie folgt zusammenfassen:
- Direktzerspaner verlangen im allgemeinen Frischholz, d.h. Baumstämme beispielsweise von einem Meter. Sie vermögen zwar die hochwertigen OS-Späne zu erzeugen, jedoch haben sie verhältnismäßig große Abmessungen aufgrund der großen Abmessungen des Vorproduktes. Demgemäß sind sie außerordentlich teuer in der Anschaffung. Die Investitionskosten liegen zwischen einer und drei Millionen DM. Demgemäß sind sie auch relativ wenig flexibel im Einsatz.
- Direct cutters generally require fresh wood, ie logs of, for example, one meter. Although they are capable of high-quality OS chips However, they have relatively large dimensions due to the large size of the precursor. Accordingly, they are extremely expensive to purchase. The investment costs are between one and three million DM. Accordingly, they are also relatively less flexible in use.
Zerspaner hingegen sind kleiner, flexibler und kostengünstiger in der Anschaffung.Chippers, on the other hand, are smaller, more flexible and less expensive to buy.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren anzugeben, womit sich sowohl sogenanntes Frischholz als auch Recycling-Holz als Vorprodukt verwenden läßt, das wesentlich geringere Bauvolumina als die bekannten Direktzerspaner aufweist, das daher geringere Investitionskosten verlangt und flexibel im Einsatz ist, und das OSB-Späne erzeugt.The invention has for its object to provide a method with which both so-called fresh wood and recycled wood can be used as a precursor, which has significantly lower construction volumes than the known Direktzerspaner, which therefore requires lower investment costs and is flexible in use, and the OSB Generated chips.
Diese Aufgabe wird durch ein Verfahren gemäß Anspruch 1 gelöst.This object is achieved by a method according to
Der Erfinder hat sich somit von einem verbreiteten Vorurteil gelöst. Er hat auf die Grundmerkmale des Messerringzerspaners zurückgegriffen, jedoch die Randbedingungen fundamental verändert. Dies betrifft die Auswahl der Abmessungen des Vorproduktes. Dieses hat in einer ersten Erstreckung eine größere Abmessung als in einer hierzu senkrechten Erstreckung, so daß es als stabförmig bezeichnet werden könnte.The inventor has thus solved a common prejudice. He has resorted to the basic features of the Messerringzerspaners, but fundamentally changed the boundary conditions. This concerns the selection of the dimensions of the precursor. This has a larger dimension in a first extension than in a vertical extension, so that it could be referred to as rod-shaped.
Mit einem erfindungsgemäßen Verfahren lassen sich nunmehr höchst unterschiedliche Vorprodukte verwenden, nämlich sowohl Frischholz ausgezeichneter Qualität, Frischholz minder guter Qualität wie Krüppelholz und Äste sowie Recycling-Holz.With a method according to the invention can now use very different precursors, namely both fresh wood excellent quality, fresh wood of lower quality such as crippled wood and branches and recycled wood.
Dabei kommen als Recycling-Holz beispielsweise die sehr zahlreich anfallenden Verpackungshölzer in Betracht.Here come as a recycled wood, for example, the very numerous accumulating packaging timber into consideration.
Das Verfahren gemäß der Erfindung kann - wie erwähnt - grundsätzlich hochwertige OSB-Späne erzeugen, gleichzeitig aber auch Späne geringerer Qualität. Werden unterschiedliche Kategorien von Spänen erzeugt, so lassen sich diese klassifizieren durch einen nachgeschalteten Klassifizierungsschritt.The method according to the invention can - as mentioned - basically produce high-quality OSB chips, but at the same time also chips of lower quality. If different categories of chips are generated, they can be classified by a subsequent classification step.
Die Erfindung ist anhand der Zeichnung näher erläutert. Darin ist im einzelnen folgendes dargestellt:
- Fig. 1
- zeigt einen Zerspaner in einer Ansicht von vorn, d.h. in einer Ansicht auf diejenige Seite, auf der sich der Gehäusedeckel mit dem Einsatz für das Vorprodukt befindet.
- Fig. 2
- zeigt in vergrößertem Maßstab einen Axialschnitt des Zerspaners gemäß Fig. 1.
- Fig. 3
- zeigt in vergrößerter Darstellung einen Ausschnitt aus Fig. 2, nämlich ein Messerpaket.
- Fig. 1
- shows a chipper in a view from the front, ie in a view of the side on which the housing cover is located with the insert for the precursor.
- Fig. 2
- shows on an enlarged scale an axial section of the Zerspaners of FIG. 1st
- Fig. 3
- shows an enlarged view of a section of Fig. 2, namely a knife package.
Wie man aus den Figuren 1 und 2 im einzelnen sieht, umfaßt der Zerspaner einen Rotor 1, der von einer Welle 2 angetrieben ist. Der Rotor 1 enthält einen Kranz von achsparallelen Flügeln 3. Ein Messerkorb mit ebenfalls achsparallel angeordneten Messern 4 umschließt den Rotor 1. Rotor 1 und Messerkorb sind wiederum in einem Gehäuse 5 angeordnet und gemeinsam von diesem umschlossen. Gehäuse 5 weist einen Einlaß 6 für die zuzuführenden Hackschnitzel sowie einen Auslaß für den fertigen Span auf.As can be seen in detail from FIGS. 1 and 2, the chipper comprises a
Figur 2 veranschaulicht an zwei Stellen ein stabförmiges Vorprodukt 20. Dieses ist im vorliegenden Fall als regelmäßiger rechteckiger Klotz bestellt. Stattdessen könnte dieses Vorprodukt jedoch auch andersartig gestaltet sein, beispielsweise unregelmäßige Begrenzungsflächen aufweisen. Wesentlich ist nur, daß dieses Vorprodukt 20 mehr oder minder stabförmig ist, d. h. eine Längserstreckung aufweist, die größer ist, als die Quererstreckungen in hinzu senkrecht verlaufenden Ebenen.Figure 2 illustrates in two places a rod-shaped
Das Vorprodukt 20 wird dem schachtförmigen Einlass 6 zugeführt - siehe Pfeil. Es gelangt sodann in den vom Rotor 1 umschlossenen Innenraum. Dabei legt sich das Vorprodukt 20 - automatisch oder durch eine entsprechende Orientierungseinrichtung - derart, daß es vorwiegend zur Längsachse der Rotorwelle 2 verläuft, und damit mehr oder minder parallel zu den Messern 4. Das Vorprodukt hat eine erhebliche Größe, insbesondere eine erhebliche Länge, verglichen mit jenen Hackschnitzeln, die den bisher üblichen Messerringzerspannern zugeführt werden.The
In Figur 3 ist in einem achssenkrechten Schnitt ein Messerpaket dargestellt. Dieses Messerpaket ist jeweils Bestandteil des Messerringes der Maschine.FIG. 3 shows a knife package in an axially perpendicular section. This knife package is part of the knife ring of the machine.
Jedes Messerpaket ist wie folgt aufgebaut: Ein Tragklotz 10 trägt ein Schneidmesser 11, das mittels einer Spannplatte 12 und einer Schraube 13 am Tragklotz 10 befestigt ist.Each knife package is constructed as follows: A
Jeder Tragklotz 10 weist eine Verschleißfläche 10.1 auf. Entscheidend ist, daß diese der Maschinenachse zugewandte Verschleißfläche 10.1 annähernd eben sind und somit nicht konzentrisch wie beim Stand der Technik.Each
Dabei ist die Verschleißfläche 10.1 im Falle der Figur 3 aus einer Verschleißplatte 10.2 gebildet, die ihrerseits am übrigen Tragklotz 10 befestigt ist. Die Verschleißfläche kann auch aus einer Verschleißschicht gebildet werden, die durch Aufbringen einer Verschleißschicht, vorzugsweise durch Auftragsschweißen oder Aufspritzen und anschließendes Schleifen erzeugt wurde.In this case, the wear surface 10.1 is formed in the case of Figure 3 from a wear plate 10.2, which in turn is attached to the rest of the
Bei der Ausführungsform gemäß Figur 3 ist ein Stockmesser 14 vorgesehen, das auf der dem Schneidmesser 11 gegenüberliegenden Seite des Tragklotzes 10 befestigt ist, und das mit dem Schneidmesser des benachbarten Messerpaketes zusammenarbeitet.In the embodiment according to FIG. 3, a
Claims (1)
- Method for producing oriented strand (OS) chips for the manufacture of OS boards with the following steps:an intermediate product (20) is produced from fresh wood or recycled wood,the intermediate product (20) is substantially rod-shaped,the intermediate product (20) is fed into a chipping machine comprising a large number of blades (4), which are arranged on a blade ring, the cutting edges of which run at least approximately parallel to the ring axis and which enclose a working chamber,the intermediate product (20) is rotated around the blade ring axis and is aligned in such a way that it lies essentially parallel to the ring axis and is pressed by centrifugal force against the cutting edges of the blades (4),the intermediate product (20) has a length of 80 to 150 mm,the intermediate product (20) has a width of in the order of at least 20 mm,the operating parameters such as the blade design, the blade angle are selected so that OS chips are produced with a chip thickness of 0.2 to 0.6 m, preferably from 0.2 to 0.4 mm,a sifter stage is arranged upstream of the chipping in order only to allow through intermediate products with specific dimensions,a classifying stage is arranged after the chipping stage in order to classify the chips according the criteria of their design or dimensions or their weight.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10058626A DE10058626A1 (en) | 2000-11-25 | 2000-11-25 | Method and device for producing chips from wood |
| DE10058626 | 2000-11-25 | ||
| PCT/EP2001/012460 WO2002042039A1 (en) | 2000-11-25 | 2001-10-27 | Intermediate product, method and device for producing wood chips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1335818A1 EP1335818A1 (en) | 2003-08-20 |
| EP1335818B1 true EP1335818B1 (en) | 2006-01-04 |
Family
ID=7664684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01997378A Expired - Lifetime EP1335818B1 (en) | 2000-11-25 | 2001-10-27 | Method for producing wood chips |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US7210511B2 (en) |
| EP (1) | EP1335818B1 (en) |
| JP (1) | JP3727307B2 (en) |
| CN (1) | CN1313253C (en) |
| AT (1) | ATE314909T1 (en) |
| AU (1) | AU2002221770A1 (en) |
| BR (1) | BR0115604B1 (en) |
| CA (1) | CA2429152C (en) |
| DE (2) | DE10058626A1 (en) |
| ES (1) | ES2256336T3 (en) |
| MY (1) | MY134785A (en) |
| PT (1) | PT1335818E (en) |
| RU (1) | RU2266194C2 (en) |
| WO (1) | WO2002042039A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007003698B3 (en) * | 2007-01-25 | 2008-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Flat chippings producing method for structure oriented derived timber product e.g. cellulose containing plates, involves subjecting preliminary product to hydrothermal treatment, and subjecting product to chipping or splitting |
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| US20070144663A1 (en) * | 2005-12-23 | 2007-06-28 | Huber Engineered Woods L.L.C. | Process for manufacture of oriented strand lumber products |
| US20070151662A1 (en) * | 2005-12-23 | 2007-07-05 | Huber Engineered Woods L.L.C. | Integrated process for simultaneous manufacture of oriented strand lumber and board products |
| DE102006053034A1 (en) * | 2006-11-10 | 2008-05-15 | Loth, Robert, Dipl.-Ing. | Chipper for wood chips |
| WO2009048124A1 (en) * | 2007-10-10 | 2009-04-16 | Hoya Corporation | Progressive refractive power lens manufacturing method and progressive refractive power lens |
| FI122578B (en) * | 2008-12-05 | 2012-03-30 | Andritz Oy | Method and arrangement for improving the attachment arrangement of the chopping blade |
| CN105799028B (en) * | 2014-12-31 | 2018-11-27 | 江苏快乐木业集团有限公司 | A kind of disc type knife shaft flaker |
| DE102015005642A1 (en) * | 2015-05-05 | 2016-11-10 | B. Maier Zerkleinerungstechnik Gmbh | Knife ring |
| DE102016001277A1 (en) | 2016-02-04 | 2017-08-10 | B. Maier Zerkleinerungstechnik Gmbh | Feed chute and method for feeding material to a crusher |
| DE202016000755U1 (en) | 2016-02-04 | 2017-04-06 | B. Maier Zerkleinerungstechnik Gmbh | Feed chute for feeding material into a crusher |
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| DE940446C (en) * | 1952-05-03 | 1956-03-15 | Ludwig Pallmann | Device for the waste-free chipping of wood, in particular wood waste |
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| US5205496A (en) * | 1991-06-05 | 1993-04-27 | O.D.E. Investments Corporation | Universal grinder with reciprocal feeder |
| US5209278A (en) * | 1992-02-27 | 1993-05-11 | Commerical Knife,Inc. | Drum chipper with knife and knife holder |
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| US5692548A (en) * | 1996-05-17 | 1997-12-02 | Vermeer Manufacturing Company | Wood chipper |
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| DE29913779U1 (en) | 1999-08-06 | 1999-11-25 | Elsen, Reinhold W., Dr.-Ing., 56745 Volkesfeld | Knife ring cutter for the production of flat chips from round wood |
| DE20020037U1 (en) | 2000-11-25 | 2001-05-10 | B. Maier Zerkleinerungstechnik Gmbh, 33649 Bielefeld | Device for producing chips from wood |
-
2000
- 2000-11-25 DE DE10058626A patent/DE10058626A1/en not_active Withdrawn
-
2001
- 2001-10-27 US US10/432,295 patent/US7210511B2/en not_active Expired - Fee Related
- 2001-10-27 AU AU2002221770A patent/AU2002221770A1/en not_active Abandoned
- 2001-10-27 WO PCT/EP2001/012460 patent/WO2002042039A1/en active IP Right Grant
- 2001-10-27 BR BRPI0115604-7A patent/BR0115604B1/en not_active IP Right Cessation
- 2001-10-27 CN CNB018194958A patent/CN1313253C/en not_active Expired - Fee Related
- 2001-10-27 PT PT01997378T patent/PT1335818E/en unknown
- 2001-10-27 JP JP2002544200A patent/JP3727307B2/en not_active Expired - Fee Related
- 2001-10-27 RU RU2003118719/12A patent/RU2266194C2/en not_active IP Right Cessation
- 2001-10-27 CA CA 2429152 patent/CA2429152C/en not_active Expired - Fee Related
- 2001-10-27 EP EP01997378A patent/EP1335818B1/en not_active Expired - Lifetime
- 2001-10-27 AT AT01997378T patent/ATE314909T1/en active
- 2001-10-27 ES ES01997378T patent/ES2256336T3/en not_active Expired - Lifetime
- 2001-10-27 DE DE50108642T patent/DE50108642D1/en not_active Expired - Lifetime
- 2001-11-23 MY MYPI20015357A patent/MY134785A/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE940446C (en) * | 1952-05-03 | 1956-03-15 | Ludwig Pallmann | Device for the waste-free chipping of wood, in particular wood waste |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007003698B3 (en) * | 2007-01-25 | 2008-05-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Flat chippings producing method for structure oriented derived timber product e.g. cellulose containing plates, involves subjecting preliminary product to hydrothermal treatment, and subjecting product to chipping or splitting |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1335818A1 (en) | 2003-08-20 |
| CN1313253C (en) | 2007-05-02 |
| ES2256336T3 (en) | 2006-07-16 |
| US20040045633A1 (en) | 2004-03-11 |
| PT1335818E (en) | 2006-05-31 |
| MY134785A (en) | 2007-12-31 |
| WO2002042039A1 (en) | 2002-05-30 |
| CA2429152A1 (en) | 2002-05-30 |
| DE50108642D1 (en) | 2006-03-30 |
| DE10058626A1 (en) | 2002-06-06 |
| BR0115604B1 (en) | 2011-04-05 |
| ATE314909T1 (en) | 2006-02-15 |
| JP3727307B2 (en) | 2005-12-14 |
| US7210511B2 (en) | 2007-05-01 |
| BR0115604A (en) | 2003-09-16 |
| JP2004513808A (en) | 2004-05-13 |
| CN1503717A (en) | 2004-06-09 |
| AU2002221770A1 (en) | 2002-06-03 |
| CA2429152C (en) | 2008-08-05 |
| RU2266194C2 (en) | 2005-12-20 |
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