EP2394743A1 - Broyeur - Google Patents

Broyeur Download PDF

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Publication number
EP2394743A1
EP2394743A1 EP11168898A EP11168898A EP2394743A1 EP 2394743 A1 EP2394743 A1 EP 2394743A1 EP 11168898 A EP11168898 A EP 11168898A EP 11168898 A EP11168898 A EP 11168898A EP 2394743 A1 EP2394743 A1 EP 2394743A1
Authority
EP
European Patent Office
Prior art keywords
tooth
shaft
stator
crushing machine
rotation
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Withdrawn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
EP11168898A
Other languages
German (de)
English (en)
Inventor
Udo Becker
Michael Böhlefeld
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.)
Amni Maschinenbau GmbH
Original Assignee
Amni Maschinenbau 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 Amni Maschinenbau GmbH filed Critical Amni Maschinenbau GmbH
Publication of EP2394743A1 publication Critical patent/EP2394743A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • 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
    • B02C18/146—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with a rotor comprising a plurality of axially contiguous disc-like segments each having at least one radially extending cutting element
    • 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
    • B02C2018/188—Stationary counter-knives; Mountings thereof

Definitions

  • the invention relates to a crushing machine with at least one motor-driven shaft, comprising a plurality of spaced apart in the direction of the longitudinal extension of the shaft to each other, each having at least one cutter head with at least one tooth having rotor blades, and with a stator blade assembly, wherein the rotor blades during operation of the machine cooperate with the Statormessern for the purposes of crushing, wherein the at least one cutter head carries one of a plurality of teeth, each having a different radial distance from the axis of rotation of the shaft formed tooth arrangement.
  • Such shredders are coarse shredders. These are used, for example, to recycle raw materials. For example, sheet metal parts, tires, household appliances and the like are comminuted with such comminution machines.
  • a crushing machine is known EP 0 928 222 B2 .
  • This shredding machine has a machine frame, which merges on the upper side in a hopper for feeding the material to be shredded.
  • the hopper is part of the machine frame.
  • two motor-driven shafts are mounted in the machine frame of this known crushing machine. Each shaft carries a plurality of spaced rotor blades.
  • stator blades running transversely to the longitudinal axis of the rotor blades, which altogether form a stator blade arrangement.
  • the stator knives form abutments for the rotor blades driven in rotation by the shaft during operation of the crushing machine and moved past the stator blades, with the result that material located between a rotor blade and a stator blade is cut.
  • jumbo-type rotor knives are used in such crushers. These have one or two twisted curved teeth. In such a conception the closer with its radial distance from the axis of rotation of the shaft of the shaft tooth is projecting in the direction of rotation of the rotor blade against the outer tooth.
  • These crushers work on the principle that the concentrated on the tooth tips driving force of the shaft on the material to be crushed, which rests on the stator blades as an abutment, acts.
  • voltage peaks are introduced into the material to be comminuted in order to comminute it.
  • such a crushing machine must have a very powerful drive so that the necessary forces for crushing can be applied.
  • the invention therefore has the object to improve a generic crushing machine mentioned above so that an effective crushing is possible with a lower power consumption.
  • this crusher has rotor blades with a plurality of teeth in the above-described very special arrangement to each other.
  • the arrangement of the teeth is provided such that an outboard tooth of a tooth assembly arranged in advance in the direction of rotation of the rotor in a crushing operation using this tooth arrangement, whereas the inner teeth, which are typically less radially spaced, are set back against this direction counter to the direction of rotation are.
  • Such a tooth arrangement comprises at least two teeth, in rotor knives having tooth arrangements with more than two teeth, the above-described arrangement refers to two teeth in each case, in particular teeth arranged adjacent to one another.
  • Such a crushing machine is particularly effective when the stator knife on its the rotary movement of the rotor blade with its tooth arrangement having cutter head opposite side - ie on its effective stator blade side - formed by inclined flanks case, with the lowest of the case within the on the stator blade projected trajectory of the tooth arrangement is located.
  • a stator knife designed in this way the material to be comminuted is pressed into the trap, compressed in the latter by the tooth arrangement on the cutter head, if this is due to the material is possible, and divided in the manner described above.
  • the inclined flanks of the trap support the material shredding.
  • the teeth of such a tooth arrangement are arranged on a straight line connecting the tooth tips, which is arranged at an angle with respect to a line connecting the axis of rotation of such a rotor knife with the outer tooth of this tooth arrangement. It is also possible that the tooth tips of such a tooth arrangement are arranged on a curved line as long as each tooth lying opposite an outer tooth is set back relative to this counter to the direction of rotation of the rotor blade.
  • the teeth of such a tooth arrangement are preferably sawtooth-like and thus asymmetrical. It has been found that a configuration is advantageous in which the steeper flank forming a tooth is the flank lying in the radial direction and thus the flank pointing inwards has a smaller angle of inclination. As a result of this geometry, these teeth are particularly resistant and able to withstand particularly high forces.
  • stator blade is designed asymmetrically in accordance with a preferred embodiment, wherein the flank closer to the shaft is steeper than that of the shaft further lying.
  • the steeper, inner edge forms a particularly effective abutment in the crushing process.
  • the stator knife trap is typically below the horizontal plane that extends through the axis of rotation of the shaft.
  • a comminuting operation is provided in both directions of rotation in such a comminuting machine, two cutter heads with tooth arrangements arranged facing away from one another will be provided. Consequently, such a rotor blade is designed to be double-acting.
  • the two tooth arrangements can also be arranged on a single cutter head.
  • a rotor blade may also have more than one such cutter head, for example two or three also three. This depends on the material to be shredded.
  • the stator blade has two traps, one trap being disposed on each side of the shaft.
  • the crusher as a so-called two-shaft shredder with two equipped with such rotor knives shafts.
  • the stator knife is designed and then has the required number of traps.
  • the stator blade itself is preferably designed in the manner of a knife bar which traverses the comminuting space transversely to the longitudinal extension of the shafts.
  • FIG. 1 An industrial crusher designed as a shredder is in FIG. 1 marked with the reference numeral 1.
  • the crushing machine 1 is placed on a frame 2.
  • Part of the frame 2 is a parapet 3.
  • the crushing machine 1 comprises a machine frame 4.
  • Part of the machine frame 4 are hydraulic drives 5, 5.1 for driving one shaft 6, 6.1. Since the crushing machine 1 has two shafts 6, 6.1, this can also be addressed as a twin-shaft shredder.
  • the machine frame 4 is designed in the manner of a frame and includes an opening, which is also referred to as a crushing space.
  • Part of the comminution machine 1 is furthermore a stator knife cassette 7. This is arranged inside the machine frame 4.
  • the machine frame 4 is designed to be open at the top so that the stator knife cassette 7 can be inserted therein.
  • the upper end of the machine frame 4 is formed by a circumferential flange 8.
  • a funnel 9 can be placed on this a funnel 9 can be placed.
  • the funnel 9 is not responsible for the stiffening of the machine frame 4.
  • the funnel 9 is fastened to the flange 8 of the machine frame 4 by a plurality of bolts.
  • FIG. 2 shows the machine frame 4 with the stator blade cassette 7 inserted therein and the mounted shafts 6, 6.1.
  • the shaft 6 is attached to the machine frame 4 via a plummer block 10, 10.1 located at each end.
  • the machine frame 4 has - via corresponding bearing blocks 11, 11.1, to which the plummer block 10, 10.1 are screwed.
  • the coupling, with which the shaft 6 is connected to the hydraulic drive 5, is in FIG. 2 marked with the reference numeral 12.
  • the clutch 12 is released.
  • the shaft 6 carries a plurality of longitudinally extending the same with spaced rotor blade 13.
  • the shaft 6.1 is equally equipped with rotor blades and held as well as the shaft 6 and connected to its hydraulic drive 5.1.
  • the stator knife cassette 7 is in FIG. 3 shown separately in a perspective view.
  • the stator cassette 7 consists of a plurality of stator knives 14 arranged parallel to one another at a distance and designed as a knife bar.
  • the stator knives 14 are each connected at their front sides to a knife holder 15 or 15.1, in the illustrated embodiment by means of a weld.
  • the knife holder 15 has fits, in each of which engages a chamfered at its two end faces stator knife.
  • the knife holder 15 is executed cranked and forms by the cranking an inwardly projecting shoulder 16.
  • the stator knives 14 have a notch on their end faces with the purpose that the underside of the notch rests on the shoulder 16 of a knife holder 15 and 15.1.
  • the machine frame 4 has for receiving the Statormesserkassette 7 on its longitudinal sides in each case on the inside a support shoulder on which the Statormesserkassette 7 with the underside 17, 17.1 of their knife holder 15 and 15.1 rests (not shown).
  • the stator knife cassette 7 is bolted to the machine frame 4 with a few bolts. These serve to fix the position.
  • a force is introduced via the above-described support arrangement.
  • Side forces are introduced directly into the machine frame 4 via the outer sides 18 of the knife holders 15, 15. 1, since they rest against the sides of the machine frame 4 facing the outer sides 18.
  • the shafts 6, 6.1 are driven in opposite directions to each other, so that the rotor blades 13 of the two shafts 6, 6.1 are moved towards each other above the shaft axis.
  • the rotor blades 13 cooperate with the stator knives 14 of the stator blade cassette 7.
  • the rotor blades 13 are moved past the stator blades 14 while leaving a slight gap. Accordingly, the distance of the stator blade 14 as the rotor blade 13 is designed from each other.
  • FIG. 5 shows one of the rotor blades 13 of the shafts 6 and 6.1.
  • the rotor blades 13 of the shafts 6, 6.1 are identical, but arranged on the respective shaft 6 and 6.1, however, with a certain angular displacement to one another.
  • FIG. 5 shown rotor blade 13 has a ring portion 19 through which the shaft 6 or 6.1 engages. With the ring portion 19, the rotor blade 13 is torque-locked to the shaft 6 or 6.1. Formed on the ring portion 19 is a radially extending from the center of the ring portion 19 outwardly extending cutter head 20.
  • the cutter head 20 carries a toothed arrangement 21, which points in the direction of rotation of the rotor blade 13, when the rotor blade 13 supporting shaft is driven in a clockwise direction.
  • the tooth arrangement 21 of the illustrated embodiment comprises four teeth 22, 22.1, 22.2, 22.3.
  • the tooth 22 is the outer tooth in the tooth arrangement 21 in the radial direction.
  • teeth 22.1, 22.2, 22.3 are set back against the clockwise rotation of the rotor blade 13 opposite to the clockwise rotation.
  • the tips of the teeth 22, 22.1, 22.2, 22.3 are arranged on a straight line 23. Due to the above-described each set back arrangement of the respective inner tooth relative to the respective adjacent outer tooth, the straight line 23 does not intersect the axis of rotation 24 of the rotor blade 13 or the shaft, but intersects in the representation of FIG. 5 indicated, extending through the axis 24 vertical plane of the rotor blade 13 above the axis 24.
  • the teeth 22, 22.1, 22.2, 22.3 are designed asymmetrically in the manner of a sawtooth in each case, wherein the flank lying in the radial direction represents the steeper flank.
  • Adjacent to the inner tooth 22.3 is a rotor blade section curved with a radius 26, through which a recess 27 is formed.
  • the rotor blade 13 has a second cutter head 28, which is designed mirror-symmetrically with respect to the cutter head 20 in relation to the aforementioned vertical plane.
  • the teeth of the cutter head 28 are used in a rotary drive of the rotor blade 13 in the case of left-rotating shaft 6.
  • the two cutter heads 20, 28 ultimately merge into one another and, in principle, can also be addressed as a double cutter head.
  • the trap 29.1 is constructed accordingly.
  • the trap 29 is formed by two inclined to each other Flanks 30, 30.1, which converge in a curved sole 31 formed. It is provided that the shaft 6.1 nearer edge 29 has a greater inclination angle relative to the axis of rotation 24 intersecting horizontal than the flank 30.1.
  • the trap 29 is therefore asymmetrical in terms of their cross-sectional geometry.
  • the trap 29 serves the purpose that material to be shredded falls into it during operation of the crushing machine 1, is trapped therein, to be crushed by the tooth arrangement 21 of the rotor blade 13.
  • the trap 29 is located below the horizontal axis located within the axis of rotation 24, which supports their function.
  • the inclination of the outer flank 30.1, connected to the above-described tooth arrangement 21 has the consequence that on an in the case 29 crushed material first an introduction of force for crushing the same by the or the outer teeth and successively as a result of the rotational movement of the rotor blade 13 a force through the then internal teeth acts.
  • the material to be crushed in the direction of the sole 31 of the case 29 is moved.
  • the curved rotor blade portion 26 cooperates with the inner edge 30 of the case 29, wherein in this respect the recess 27 has the function of a trap with the result that by the teeth 22, 22.1, 22.2, 22.3 not yet crushed material in the recess 27 of the cutter head 20 is pressed in and this material is then divided in cooperation with the flank 30 of the case 29.
  • stator knives 14, which are arranged parallel to one another and are combined to form the stator knife cassette 7, are differently designed with regard to the cross-sectional geometry of their respectively inside trap 29 in their successive arrangement.
  • the rotor blade 13 of the shaft 6.1 is guided past the above-described first stator blade 14.
  • the rotor blade 13 of the shaft 6 is arranged in the longitudinal direction of the axis behind the rotor blade 13 of the shaft 6.1 and in turn behind the adjacent to the stator blade 14 stator blade 14.1. From this adjacent stator blade 14.1 is in FIG. 6 the leaking portion of the outer flank recognizable.
  • This exchange arrangement of the stator knives 14, 14.1 allows an alternate formation of the internal trap in terms of their size. In the illustrated embodiment need not be provided for this purpose different stator knives. These are only rotated by 180 ° in the knife holders 15, 15.1 arranged.
  • stator knives are designed as cutter bars and these in turn are combined to a Statormessassette, it is understood that it is not relevant to the realization of the invention and that the invention can also be carried out with conventional stator blade assemblies.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP11168898A 2010-06-08 2011-06-07 Broyeur Withdrawn EP2394743A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201020005584 DE202010005584U1 (de) 2010-06-08 2010-06-08 Zerkleinerungsmaschine

Publications (1)

Publication Number Publication Date
EP2394743A1 true EP2394743A1 (fr) 2011-12-14

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ID=44582090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11168898A Withdrawn EP2394743A1 (fr) 2010-06-08 2011-06-07 Broyeur

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EP (1) EP2394743A1 (fr)
DE (1) DE202010005584U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871001A1 (fr) * 2013-11-06 2015-05-13 Erdmann GmbH & Co. Kg Système modulaire de broyeur ainsi que procédé de démontage d'une cisaille dans un broyeur à crochets ou d'un broyeur à crochet dans une cisaille
EP3000532A1 (fr) * 2014-09-25 2016-03-30 FOR REC srl Machine de broyeur de déchets
CN113083467A (zh) * 2021-04-19 2021-07-09 碎得机械(北京)有限公司 一种用于固体废弃物处理的破碎机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107890928A (zh) * 2017-12-29 2018-04-10 湖南宝泓科技有限公司 一种单轴毁形装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU944643A1 (ru) * 1980-11-12 1982-07-23 Всесоюзный научно-исследовательский институт электрификации сельского хозяйства Одновалкова зубчата дробилка
US5402948A (en) * 1993-04-30 1995-04-04 Kaczmarek; Al Comminuting device with face
EP0928222B1 (fr) 1995-09-12 2000-06-14 Niro Industries A/S Broyeuse
DE10247281B3 (de) * 2002-10-10 2004-03-04 Metso Lindemann Gmbh Zerkleinerungsmaschine für Material beliebiger Art, z.B. Abfall oder Holz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU944643A1 (ru) * 1980-11-12 1982-07-23 Всесоюзный научно-исследовательский институт электрификации сельского хозяйства Одновалкова зубчата дробилка
US5402948A (en) * 1993-04-30 1995-04-04 Kaczmarek; Al Comminuting device with face
EP0928222B1 (fr) 1995-09-12 2000-06-14 Niro Industries A/S Broyeuse
DE10247281B3 (de) * 2002-10-10 2004-03-04 Metso Lindemann Gmbh Zerkleinerungsmaschine für Material beliebiger Art, z.B. Abfall oder Holz

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2871001A1 (fr) * 2013-11-06 2015-05-13 Erdmann GmbH & Co. Kg Système modulaire de broyeur ainsi que procédé de démontage d'une cisaille dans un broyeur à crochets ou d'un broyeur à crochet dans une cisaille
US9943855B2 (en) 2013-11-06 2018-04-17 Erdmann Gmbh & Co. Kg Crushing machine construction kit for the construction of a crushing machine, method for converting a rotary shear, and a method for converting a rotary shredder
EP3000532A1 (fr) * 2014-09-25 2016-03-30 FOR REC srl Machine de broyeur de déchets
CN113083467A (zh) * 2021-04-19 2021-07-09 碎得机械(北京)有限公司 一种用于固体废弃物处理的破碎机

Also Published As

Publication number Publication date
DE202010005584U1 (de) 2011-11-03

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