EP2704838A2 - Dispositif de broyage par impact et de production de matériaux, en particulier de bois, en plusieurs fractions - Google Patents

Dispositif de broyage par impact et de production de matériaux, en particulier de bois, en plusieurs fractions

Info

Publication number
EP2704838A2
EP2704838A2 EP12719366.2A EP12719366A EP2704838A2 EP 2704838 A2 EP2704838 A2 EP 2704838A2 EP 12719366 A EP12719366 A EP 12719366A EP 2704838 A2 EP2704838 A2 EP 2704838A2
Authority
EP
European Patent Office
Prior art keywords
sieve
screen
ejection
horizontal
ejection opening
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.)
Granted
Application number
EP12719366.2A
Other languages
German (de)
English (en)
Other versions
EP2704838B1 (fr
Inventor
Ralf Schaefer
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.)
Proactor Schutzrechtsverwaltungs GmbH
Original Assignee
Proactor Schutzrechtsverwaltungs 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 Proactor Schutzrechtsverwaltungs GmbH filed Critical Proactor Schutzrechtsverwaltungs GmbH
Publication of EP2704838A2 publication Critical patent/EP2704838A2/fr
Application granted granted Critical
Publication of EP2704838B1 publication Critical patent/EP2704838B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/286—Feeding or discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

Definitions

  • the invention relates to a device for impact crushing and application of materials, in particular of wood, in several fractions, according to the
  • a method and a device for processing components from mixtures of substances, in particular mixed plastics are known in which a baffle reactor, which is accommodated in a cylindrical base body, has a rotor rotatable by a drive motor.
  • the adjustable in height in the body rotor consists of
  • a device for comminuting material in particular of wood, comprises a baffle reactor which has a substantially cylindrical basic body in whose closed interior a rotor driven by a motor rotates with at least one baffle element which contacts the material and produces a crushed high momentum transfer into partial components.
  • the device further comprises an ejection box which is connected to the interior of the cylindrical base body via an ejection opening, and a first auger arranged in the ejection box below the ejection opening for conveying the comminuted material from the ejection box.
  • the device according to the invention is characterized in that below the ejection opening a first sieve with a first mesh width is arranged which, viewed from the ejection opening, extends inclined towards the first auger relative to the horizontal, and that below the first sieve one relative to the horizontal inclined sliding surface or a relative to the horizontal inclined second sieve is arranged, which has a relation to the first mesh size reduced second mesh size.
  • the sliding surface, or the second sieve, extending from the cylindrical base body to a second screw conveyor, which is arranged below the first screw conveyor.
  • the device according to the invention can be kept comparatively compact in terms of its dimensions, since the required base area for the screens-which is determined by the vertical projection of the screens-is advantageously reduced by their inclined arrangement relative to their effective screen area.
  • the second sieve which is preferably arranged at the same angle of inclination as the first sieve on a plane extending substantially parallel to the sieve surface of the first sieve, below the first sieve.
  • a sliding surface may be provided, which is a falling out of the passing through the first sieve particles, which are also referred to below as undersize, down from the Ejector box prevented. Since the sliding surface, which closes the collecting container in this case preferably downwards dust-tight, all the particles passing through the first sieve particles to the second conveyor screw out, occurs in this embodiment of the invention, the entire undersize in the
  • the ejection opening can be closed by a third sieve which has an enlarged mesh size compared to the mesh size of the first sieve.
  • Impeller reactor and is there continuously further reduced until it also assumes a diameter which is smaller than the mesh size of the third sieve.
  • the ejection opening can be closed by a flap or a slide, whereby advantageously the possibility of
  • This alternative embodiment has the advantage that the supply amount of crushed material controlled in the ejection box to regulate, if desired, the amount of shredded material on the first and / or second screen. As a result, it is possible in particular to effectively prevent overflowing or overshooting of the sieves and clogging of the conveying screws. In addition, results in this alternative
  • Embodiment of the additional advantage that the discharge of the crushed material out of the baffle chamber can be made controlled based on other parameters, for example, based on the moisture contained in the crushed particles, or in the baffle, which to avoid lumping and consequent plugging the strainers may not be too high.
  • Combination of the third screen and a flap or slider is used to allow a discontinuous discharge of the material from the baffle into the ejection box.
  • the one or more screens each extend from the cylindrical base body with the same angle of inclination as the first and second screens to a respective further conveyor screw, which is preferably arranged directly below the second conveyor screw.
  • the screw conveyors preferably extend in one and the same vertical plane, which extends in particular parallel to the axis of rotation of the rotor outside the baffle space.
  • Sub-grain is passed over the inclined sliding surface in a screw trough, in which the bottom screw conveyor rotates, whereby the dust development can be further reduced.
  • the first and / or the second screw conveyor are rotatably mounted within an open at its top tubular tube trough, in which screen openings are formed, the one corresponding to the mesh size of the respective adjacent sieve
  • Helical trough and the resulting mixing and circulation of the particles in the screw trough additionally favors.
  • the third sieve has a mesh size in the range of 20 mm, the first sieve a mesh width in the range of 15 mm and the second sieve a mesh width in the range of 5 mm.
  • a uniform fractionation with corresponding size ranges is achieved in an advantageous manner, as required for example by the woodworking industry for the production of wood chip materials, such as pressboard.
  • the wood particles must be present in different sizes to one
  • the load-receiving middle layer preferably larger and flatter particles are used, which ensure a more uniform surface distribution of the forces acting on the plate.
  • Particleboard are applied as small particles as possible.
  • Material particle is increased. Furthermore, by reducing and thus approaching the mesh size of the third screen to the mesh size of the first screen, the amount of particles above the desired area can also be reduced because, on the one hand, the particles stay longer in the baffle space to be sufficiently crushed and, on the other hand, through a narrower range between the mesh sizes of the first and third screen, the proportion of too large particles in the particle mixture is reduced, which passes through the third sieve.
  • horizontally extending barrier strips can be arranged on the first screen, which reduce the speed of the comminuted material emerging from the ejection opening as it moves along the inclined screen.
  • the first and / or the second sieve each have a sieve bottom or an effective sieve surface which is inclined relative to the horizontal at an angle in the range of 20 ° and 70 °, in particular in the range of 30 ° to 45 ° is, and which can be advantageously changed within these limits. This opens up the possibility that, for example, a high
  • Ejection speed of passing through the ejection opening on the first sieve particles z. B. may be required by a corresponding peripheral speed of the rotor for the separation of mixtures, can be compensated by an appropriate choice of the inclination of the sieve plate of the first sieve. If necessary, it may even be necessary for this purpose to align the first sieve in a negative angle relative to the other sieves, so that the particles exiting through the ejection opening directly onto the particle at an angle of z. B. inclined at 45 ° arranged first sieve and then slide down toward the outside of the baffle reactor on the first sieve plate.
  • the first auger is in this case located below the discharge opening in the region near the outer wall of the impact reactor, and the second sieve is located in the same direction of inclination or the opposite direction of inclination in the manner previously described below the first sieve.
  • the first and / or second sieve and / or optionally the further sieve has one or more unbalance motors through which the respective sieve can be set in vibration.
  • the first and second sieve preferably via vibration-damped elastic Suspensions or buffers attached to the peripheral surfaces of the ejection box and are, for example, via a coupled to the respective sieve, offset by a motor in rotation, eccentrically mounted flywheel in
  • the excitation of the first and second sieve to oscillations advantageously results in that the particle mixture is fluidized on the respective sieve, whereby with a corresponding choice of the oscillation frequency and the type of oscillation, the larger particles on the sieve upwards and the smaller particles migrate downwards, which additionally supports the screening process and improves the quality of the fractions obtained.
  • Fig. 1 is a schematic side view of the device according to the invention
  • Fig. 2 is a perspective view of the device without wall portions of the ejection box
  • Fig. 3 is a schematic plan view of the device according to the invention.
  • baffle reactor 2 which has a substantially cylindrical base body 4, in whose closed interior 6, a rotor 8 rotates at a high speed at which a plurality of preferably replaceable baffle elements 10 are arranged from a high strength material.
  • a tractor can be that drives the rotor 8 via a PTO and a not-shown angle gear.
  • the device 1 comprises an outwardly closed ejection box 14, which is arranged on the outer wall of the cylindrical base body 4 and with the interior 6 of the cylindrical
  • Main body 4 is connected via an ejection opening 16 in fluid communication.
  • the sieve 20c can be replaced by a, for example, along the
  • the third sieve 20c inserted in the discharge opening 16 fractionates the one in the
  • Interior 6 of the baffle reactor 2 flying particles by it can enter such particles with a size smaller than the mesh size of the third screen 20c of preferably 20 mm in the ejection box 14, and larger particles and pieces of not sufficiently comminuted material in the interior 6 of the impingement reactor. 2 holds back, in order to supply them there to another crushing process.
  • the flap 18a shown in Fig. 1 controls the influx of crushed particles in the ejection box 14 by the flap 18a - or the two-part slide 18b shown in Fig. 3 - for example, in a partially opened
  • Discharge box 14 by a cyclic opening and closing of the flap 18a or the slider 18b batch-wise to apply crushed material.
  • the mesh size of the first screen 20a is hereby preferably smaller than the mesh width of the third screen 20c, whereby a further fractionation of the comminuted material corresponding to the mesh width of preferably 15 mm takes place with this first plane.
  • Particles smaller than 15 mm in diameter fall through the meshes of the first screen 20a, with the particles having a size of between 15 and 20 mm remaining above the first screen 20a and due to the inclination of the first screen 20a in the downward direction as far as the first screw trough 26a are passed. There they are conveyed laterally out of the ejection box 14 by the first screw conveyor 24a through an opening, not shown, for further processing or storage.
  • the first screw trough 26a has screen openings 28 whose mesh width essentially corresponds to the mesh width of the first screen 20a. This allows particles to be mistaken by passing the first screen 20a in the first one
  • Schneckentrog 26a get to pass through the screen openings 28 and yet be separated according to the mesh size of the first screen 20a of the larger particles.
  • FIG. 1 furthermore shows that below the first screen plane consisting of the first screen 20a and the first scroll trough 26a, one of the first screen plane is arranged structurally substantially equal to the second screen plane, which has a second screen 20b inclined relative to the horizontal a second auger trough 26b containing a second auger 24b.
  • the second wire 20b has a second mesh size of preferably 5 mm, which is smaller than the mesh size of the first screen 20a, preferably 15 mm, in order to separate the particles having a size in the range of 5 to 15 mm, which has passed through the first screen 20a, from those components having a size of less than 5 mm own.
  • the particles remaining above the second screen 20b and having a diameter in the range of 5 to 15 mm become the second due to the inclination of the second screen 20b
  • Schneckentroges 26b which may consist of a tube in the same way as the first screw trough 26a, the only within the ejection box 14 in
  • Connection region of the screen level has an opening facing upward, preferably also screen openings are introduced, which have an opening width which corresponds substantially to the mesh size of the second screen 20b.
  • the first and the second wire 20a, 20b - as shown in the illustration of Fig. 1 - on its underside an unbalance motor 32, which preferably in mechanical
  • vibration dampers or buffers 34 over which the first and second wires 20a, 20b are preferably supported on the side walls of the ejection box 14, are preferably arranged in the region of the edge facing the respective first and second screw troughs 26a, 26b so as to be able to oscillate about the wires store and at the same time to reduce the oscillation amplitude in the region of the first and second scroll troughs 26a, 26b.
  • a sliding surface 22 which is inclined relative to the horizontal and which preferably also extends substantially parallel to the first and second screens 20a, 20b from the cylindrical one Base body 4 extends to a third auger 24c arranged below the second auger 24b, which is accommodated in a third auger trough 26c closed downwards, ie a trough which, in contrast to the troughs 26a and 26b, has no sieve openings 28. Due to the closed sliding surface 22 in conjunction with the closed on the bottom of the third screw trough 26c are the finest passed through the first and the second wire 20a, 20b
  • the second screen 24b preferably has the same angle of inclination to the horizontal as the first screen 24a, which is advantageously variable and, for example, in the range of 30 to 50 °.
  • FIG. 2 shows a schematic spatial side view of the impact reactor with the ejection box 14, in which the side walls are not shown for better representation of the screen levels, and by the
  • FIG. 3 is a schematic plan view of the invention
  • the ejection opening 16 can be closed by the slide 18b, which comprises two slide parts and is shown in a partially opened position, by sliding the slide parts along the two double arrows.
  • the slider 18b is made of a single slide plate, which can be moved or pivoted, for example by a vertical, for example upward sliding movement, to open the ejection opening 16.
  • the slider 18b may also have an arcuate shape adapted to the rounding of the outer surface of the impingement reactor 2, and in FIG.
  • region 21 is preferably formed as a closed and inclined sliding surface, along which the low speed out of the
  • Fig. 3 is further exemplified a delivery pipe 38 in the axial extension of the first screw conveyor 24 a, which on the outside of the
  • Discharge box 14 is added to the material transported by the first screw conveyor 24a material, for example, to a non-illustrated
  • the screw conveyor 24a is - in the same way as the other aforementioned screw conveyors - driven by a screw motor 36 shown by way of example in this illustration. List of reference numbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

L'invention concerne un dispositif (1) de broyage de matériau, en particulier de bois, comprenant un réacteur à impacts (2) comportant un corps de base (4) sensiblement cylindrique et un espace intérieur (6) fermé dans lequel tourne un rotor (8) muni d'au moins un élément générateur d'impacts (10) qui vient en contact avec le matériau pour le broyer en éléments partiels tout en produisant un transfert d'impulsions élevé. Le dispositif comprend également un bac d'éjection (14) relié à l'espace intérieur (6) du corps de base (4) cylindrique par l'intermédiaire d'une ouverture d'éjection (16), ainsi qu'une première vis transporteuse (24a) agencée dans le bac d'éjection (14) sous l'ouverture d'éjection (16) et destinée à transporter le matériau broyé hors du bac d'éjection (14). Le dispositif se caractérise en ce que, sous l'ouverture d'éjection (16) est agencé un premier crible (20a) doté d'une première ouverture de maille et s'étendant de l'ouverture d'éjection (16) à la première vis transporteuse (24a) de manière inclinée par rapport à l'horizontale, et en ce que sous le premier crible (20a) est agencé une surface de glissement (22) inclinée par rapport à l'horizontale ou un deuxième crible (20b) incliné par rapport à l'horizontale qui est doté d'une deuxième ouverture de maille réduite par rapport à la première ouverture de maille et qui s'étend du corps de base (4) cylindrique à une deuxième vis transporteuse (24b) agencée sous la première vis transporteuse (24a).
EP12719366.2A 2011-05-02 2012-05-02 Dispositif de broyage par impact et de production de matériaux, en particulier de bois, en plusieurs fractions Not-in-force EP2704838B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011100240A DE102011100240A1 (de) 2011-05-02 2011-05-02 Vorrichtung zur Prallzerkleinerung und Ausbringung von Materialien, insbesondere von Holz, in mehreren Fraktionen
PCT/EP2012/058055 WO2012150273A2 (fr) 2011-05-02 2012-05-02 Dispositif de broyage par impact et de production de matériaux, en particulier de bois, en plusieurs fractions

Publications (2)

Publication Number Publication Date
EP2704838A2 true EP2704838A2 (fr) 2014-03-12
EP2704838B1 EP2704838B1 (fr) 2018-02-28

Family

ID=46044694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12719366.2A Not-in-force EP2704838B1 (fr) 2011-05-02 2012-05-02 Dispositif de broyage par impact et de production de matériaux, en particulier de bois, en plusieurs fractions

Country Status (8)

Country Link
US (1) US20140091164A1 (fr)
EP (1) EP2704838B1 (fr)
CN (1) CN103596691B (fr)
BR (1) BR112013027747A2 (fr)
CA (1) CA2833069A1 (fr)
CL (1) CL2013003152A1 (fr)
DE (1) DE102011100240A1 (fr)
WO (1) WO2012150273A2 (fr)

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Publication number Priority date Publication date Assignee Title
CN115382637A (zh) * 2022-07-26 2022-11-25 黄淮学院 一种不同粒径的复合杂粮粉碎均质机
CN115382637B (zh) * 2022-07-26 2023-05-30 黄淮学院 一种不同粒径的复合杂粮粉碎均质机

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WO2012150273A2 (fr) 2012-11-08
CN103596691B (zh) 2016-01-20
CL2013003152A1 (es) 2014-07-11
BR112013027747A2 (pt) 2017-06-20
CA2833069A1 (fr) 2012-11-08
CN103596691A (zh) 2014-02-19
WO2012150273A3 (fr) 2013-01-10
EP2704838B1 (fr) 2018-02-28
US20140091164A1 (en) 2014-04-03
DE102011100240A1 (de) 2012-11-08
RU2013153269A (ru) 2015-06-10

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