EP1930140A1 - Broyeur de bois doté de lames rotatives et procédé de broyage de bois - Google Patents

Broyeur de bois doté de lames rotatives et procédé de broyage de bois Download PDF

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Publication number
EP1930140A1
EP1930140A1 EP07003840A EP07003840A EP1930140A1 EP 1930140 A1 EP1930140 A1 EP 1930140A1 EP 07003840 A EP07003840 A EP 07003840A EP 07003840 A EP07003840 A EP 07003840A EP 1930140 A1 EP1930140 A1 EP 1930140A1
Authority
EP
European Patent Office
Prior art keywords
wood
rotating
shredder
crusher according
cutting
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Withdrawn
Application number
EP07003840A
Other languages
German (de)
English (en)
Inventor
Josef Backhaus
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.)
Muellers & Backhaus & Co KG GmbH
Original Assignee
Muellers & Backhaus & Co KG 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 Muellers & Backhaus & Co KG GmbH filed Critical Muellers & Backhaus & Co KG GmbH
Publication of EP1930140A1 publication Critical patent/EP1930140A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/143—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with a disc rotor having generally radially extending slots or openings bordered with cutting knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2216—Discharge means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • 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
    • B27L11/002—Transporting devices for wood or chips

Definitions

  • the invention relates to a wood shredder with rotating cutting blades for crushing wood in pieces of wood and with rotating ejector blades for ejecting the pieces of wood. Moreover, the invention relates to a method for comminuting wood, in which the wood is fed to a wood crusher and crushed by this.
  • wood crushers are known, by means of which woods are shredded into wood chips.
  • wood shredders are sometimes also equipped with facilities that pre-shred very large pieces of wood, such as tree stumps or tree branches.
  • the wood is fed to the crusher via a mechanical feeder with catchment means.
  • this rotary feeder is followed by a rotating chopping disc with cutting blades arranged thereon.
  • the wood By means of rotation of the chopping disk, the wood, even with the aid of the rotating cutting blade, pressed against fixed counter blade and cut in particular by means of the cutting blade to a calibrated finished size.
  • the wood cut in this way is then fed behind the chopping disk to an ejecting device which cuts the cut Throw wood or wood chips out of the wood shredder via an ejector.
  • the ejection means comprise rotating ejector wings.
  • the object of the invention is achieved by a wood shredder with rotating cutting blades for crushing wood in pieces of wood and with rotating ejection wings for ejecting the pieces of wood, wherein the rotating cutting blades are arranged downstream means for post-shredding the pieces of wood.
  • the Nachzerklein für smittel can be variously realized on a wood crusher.
  • the means for crushing comprise the rotating Auswerfhoffl.
  • the rotary ejector blades usually present on a wood shredder by means of which the shredded wood or wood chips are ejected from the wood shredder, can be used advantageously for recutting inadequately shredded wood chips.
  • the means for shredding have more than one rotating ejection wing, preferably three rotating ejection wings.
  • ejector ejection wings By several such ejector ejection wings is ensured that the shredded wood chips are continuously led out of the wood shredder.
  • more than one rotating ejection wing are advantageous because more than one ejection wing reliable all long-fiber wood chips are crushed. With more than one ejector wing, this also happens faster than just an ejector wing.
  • a structurally particularly simple embodiment provides that the rotating cutting blades are arranged as Primärzerkleinerer and the rotating ejection wings as Sekundärzerkleinerer on a common drive shaft. This ensures that it is not necessary, in particular with regard to the secondary shredder, to provide further drive shafts as the always present main drive shaft for the chopping disk on the wood shredder.
  • the object of the invention is also achieved by a method for comminuting wood, in which the wood is supplied to a wood shredder and comminuted by this, which is characterized thereby; that the wood is shredded to a finished size by means of a primary crusher and the wood comminuted to finished size is output as wood chips, and the wood, which has not been shredded to the finished size, is comminuted by a secondary shredder.
  • the process is particularly simple if the primary shredder and the secondary shredder rotate with a common drive means.
  • the object of the invention is accordingly independent of the other features of the invention of a wood crusher with a primary crusher and a secondary shredder, by means of which wood is crushed solved, in which the wood crusher is characterized in that the primary crusher and the secondary crusher on a common drive means are arranged.
  • the primary shredder has a chopping disk with rotating cutting blades.
  • this wood shredder has rotating ejection wings, this wood shredder is furthermore advantageously simplified.
  • the rotating ejection wings are arranged on a rotating chopping disc, by means of which preferably also rotate the cutting blade of the wood crusher.
  • the ejection wings can be arranged almost anywhere on the chopping disc.
  • the ejector blades rotating with the chopping disk are arranged at an angle not equal to 90 degrees to the chopping disk in relation to a chopping disk plane in which the chopping disk rotates.
  • the means for post-shredding comprise a preferably stationary calibration sieve. It should be understood that in the present calibration screen, the number, location, and / or geometric dimensions of the intended calibration holes may be selected differently. This makes it particularly easy to determine the calibratable size of the wood chips.
  • a device is structurally particularly simply provided by means of which shredded wood chips can be controlled to a desired finished size.
  • the post-shredding means comprise such a stationary sieve.
  • the sieve is arranged between the rotating cutting blades and an ejection for shredded wood.
  • such a calibration screen may be located at almost any location between the rotary cutting knives and the ejector of the wood crusher.
  • a preferred installation location provides that the calibration screen is arranged on a tunnel wall, by means of which the chopped wood in the wood shredder continues to slide.
  • the rotating ejection wings are arranged at least partially within the calibration sieve.
  • the wood chips shredded by means of the chopping disc are transported into the interior of the calibration sieve and permanently thrown against the calibration sieve by means of the ejection-blade regions located within the calibration sieve until the wood chips are reground in such a way that they can pass the calibration sieve.
  • the rotating ejection wings In order to be able to lead wood chips cut to a correct finished dimension from the wood shredder into the environment by means of the rotating ejection wings, it is advantageous for the rotating ejection wings to be arranged at least partially outside the screen.
  • a structurally simple construction is when the rotating ejection wings are formed radially straight.
  • the rotating ejection wings are formed radially curved.
  • the curved ejection wings have a blade-like shape, which can act on the
  • the ejection wings can be designed to be concave or convexly curved in the direction of rotation.
  • the rotating ejection wings In order to be able to arrange the rotating ejection wings simultaneously within the calibration sieve and outside the calibration sieve, it is advantageous if the rotating ejection wings have a two-part rotation leg.
  • a first part of the two-part rotary leg is arranged as a cutting leg within the Kalibri mecanicssiebes and another part of the two-part rotary leg as a discharge leg outside the Kalibri mecanicssiebes.
  • the first part of the two-part rotary leg which is arranged as a cutting leg within the Kalibri für ssiebes, the already shredded wood chips, which can not pass the Kalibri für ssieb further crushed to a finished size, it is advantageous if the first part of the split rotary leg a cutting edge having.
  • outside of the calibration sieve is understood to mean that location in the region of the calibration sieve which faces the axis of rotation.
  • first part of the two-part rotary leg and the second part of the two-part rotary leg are arranged radially one behind the other.
  • first part of the two-part rotary leg and the second part of the two-part rotary leg are radially offset, angular or skewed to each other.
  • the Indian FIG. 1 schematically represented wood shredder 1 has a wood feeder 2 with a first feed roller 3 and a second feed roller 4, a crushing mechanism 5 with cutting means 6, with a chopping disk 7 and with a counter-blade 8 and an ejector 9.
  • the cutting means 6 and the counter-blade 8 are arranged in a woodwind 2 facing cutting area 10 and the wood collection 2 immediately downstream. In the cutting area 10, the cutting means 6 are provided on the chopping disk 7.
  • a secondary shredding mechanism 12 with rotating ejection blades 13 (numbered here only by way of example), which are likewise fastened to the chopping disk 7.
  • the Nachzerklein mecanicsmechanik 12 also includes a Kalibrationssieb 14, which is arranged on a tunnel wall 15.
  • the tunnel wall 15 is a guide for crushed wood and part of a housing 16 of the wood crusher. 1
  • the ejection wings 13 essentially consist of a fastening leg 17 and a two-part rotary leg 18 with a cutting leg 19 as a radially inner rotary leg part and a discharge leg 20 as a radially outer rotary leg part.
  • the cutting leg 19 is located within a Hauptnachzerklein réelles Kunststoffes 21, which is limited in particular radially from the Kalibrationssieb 14.
  • the cutting leg 19 has a geometrically shaped cutting edge 22 in order to be able to carry out a subsequent comminution effectively.
  • both the cutting means 6 and the ejection blades 13 are attached to the chopping disk 7 and run with the chopping disk 7.
  • the chopping disk 7 is driven by a drive shaft 23 which rotated in the direction of rotation 24. Accordingly, the chopping disc 7 runs in a hack slice plane 7A according to the direction of rotation 24.
  • wood shredder 1 In operation, the wood shredder 1 according to arrow direction 25 wood pieces 26 are supplied, which are to be crushed to a finished size. The wood thus supplied is crushed by means of the chopping disc 7 and its cutting means 6 and the counter-blade 8 to wood chips 27. Wood chips 27, which have the desired finished dimension, pass the calibration sieve 14 without difficulty and pass via the tunnel wall 15 and the connection point 28 to the ejection 9, by means of which the finished wood chips 27 are removed from the area of the comminuting mechanisms 5 and 12.
  • the tunnel wall 15 is in a connection region 29 (see FIG. 2 ), in which the connection point 28 is open.
  • Wood chips 27, which exceed the intended finished measure, are retained by the calibration screen 14 in the Hauptnachzerklein réelles Scheme 21 and are there shredded by means of the cutting legs 19 of the ejection blade 13 until they have reached the intended finished size and the calibration screen 14 can also pass easily. In order that the wood chips 27 passing through the calibration screen 14 are continuously transported away from the ejection region 11, the wood chips 27 are thrown in the direction of the ejection 9 by means of the ejection arms 20.
  • the paper plane forms the hack plane 7A, so that in the present case, the cutting area 10 in or below the plane of the paper and the ejection region 11 above the plane of the paper, and the example here figured cutting means 6 behind the chopping disk 7 and the ejection blades 13 are arranged in front of the chopping disk 7.
  • the chopping disc 7, the cutting means 6 arranged thereon and the ejection wings 13 rotate with the drive shaft 23 in the counterclockwise direction according to the direction of rotation 24.
  • FIGS. 3 and 4 Crushing mechanism 5 shown in detail and the post-shredding mechanism 12 are already known from the above FIGS. 1 and 2 known. Except for the counter-blade 8 and the Kalibrationssieb 14 all components of the crushing mechanism 5 and Nachzerklein mecanicsmechanik 12, as described above, with the drive shaft 23 to run around. For this purpose, the chopping disc 7 is fixed by means of a shaft-hub connection 30 on the drive shaft 23.
  • the ejection wings 13 are fastened on the opposite side in the ejection region 11 on the chopping disk 7.
  • the ejection wings 13 are present in the cutting leg 19, which is located within the Kalibri mecanicssiebes 14, respectively.
  • the ejector legs 20 of the ejection wings 13 are arranged outside the Kalibri réellessiebes 14.
  • the calibration sieve 14 is completely open towards the chopping disc 7, as is well illustrated in FIG FIG. 3 can recognize.
  • the calibration sieve 14 has a plurality of calibration holes 32, through which wood chips 27 comminuted to finished size can pass. Woodchips that do not fit through these calibration holes 32 are retained in the main post-crushing section 21 and reground there by means of the cutting legs 19, in particular with their geometrically shaped cutters 22, until they pass through the calibration holes 32 and the ejector 9 (see FIG FIG. 1 ) can be supplied.
  • the in the FIGS. 5 and 6 Ejector blade 13 shown in detail rotates with the drive shaft 23.
  • the ejection wing 13 has a mounting leg 17 as a one-piece rotary leg, the mounting holes 33 (numbered here only by way of example) comprises. About the mounting holes 33 and with suitable screw means (not explicitly shown here), the entire ejection blade 13 is screwed to the chopping disk 7 (see previous figures).
  • the cutting leg 19 is provided in an intermediate region 34 with geometrically shaped cutting edges 22. By means of these cutting 22 can not shred sufficiently shredded wood chips particularly advantageous on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)
EP07003840A 2006-12-04 2007-02-26 Broyeur de bois doté de lames rotatives et procédé de broyage de bois Withdrawn EP1930140A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006057398 2006-12-04
DE102007002602A DE102007002602A1 (de) 2006-12-04 2007-01-12 Holzzerkleinerer mit rotierenden Schneidmessern und Verfahren zum Zerkleinern von Holz

Publications (1)

Publication Number Publication Date
EP1930140A1 true EP1930140A1 (fr) 2008-06-11

Family

ID=38668762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07003840A Withdrawn EP1930140A1 (fr) 2006-12-04 2007-02-26 Broyeur de bois doté de lames rotatives et procédé de broyage de bois

Country Status (2)

Country Link
EP (1) EP1930140A1 (fr)
DE (2) DE202007002423U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9193106B2 (en) 2006-11-15 2015-11-24 Entex Rust & Mitschke Gmbh Blend of plastics with wood particles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2920690B1 (fr) 2007-09-12 2009-10-30 Michel Bugnot Broyeur de vegetaux pour la production de particules de bois calibres
FR2946913B1 (fr) * 2009-06-23 2011-06-10 Michel Bugnot Broyeur de vegetaux pour la production de plaquettes ou particules de bois calibrees

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172449A (en) * 1937-11-29 1939-09-12 Carthage Machine Company Wood chipping machine
DE1561622A1 (de) * 1967-11-18 1970-04-02 Hombak Maschinenfab Kg Scheibenhacker mit Nachzerkleinerung
US5042730A (en) * 1990-05-17 1991-08-27 Hundt Vincent G Multi-purpose rotating disc shredding device
EP0990494A1 (fr) * 1998-09-28 2000-04-05 Dimetal Machine pour fragmenter des blocs d'une matiere organique naturelle ou synthetique, telle que du bois

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172449A (en) * 1937-11-29 1939-09-12 Carthage Machine Company Wood chipping machine
DE1561622A1 (de) * 1967-11-18 1970-04-02 Hombak Maschinenfab Kg Scheibenhacker mit Nachzerkleinerung
US5042730A (en) * 1990-05-17 1991-08-27 Hundt Vincent G Multi-purpose rotating disc shredding device
EP0990494A1 (fr) * 1998-09-28 2000-04-05 Dimetal Machine pour fragmenter des blocs d'une matiere organique naturelle ou synthetique, telle que du bois

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9193106B2 (en) 2006-11-15 2015-11-24 Entex Rust & Mitschke Gmbh Blend of plastics with wood particles

Also Published As

Publication number Publication date
DE202007002423U1 (de) 2007-05-16
DE102007002602A1 (de) 2008-06-05

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