EP3074135B1 - Dispositif de fragmentation - Google Patents

Dispositif de fragmentation Download PDF

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Publication number
EP3074135B1
EP3074135B1 EP15826134.7A EP15826134A EP3074135B1 EP 3074135 B1 EP3074135 B1 EP 3074135B1 EP 15826134 A EP15826134 A EP 15826134A EP 3074135 B1 EP3074135 B1 EP 3074135B1
Authority
EP
European Patent Office
Prior art keywords
chamber wall
comminuting
lifting device
comminution
support base
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.)
Active
Application number
EP15826134.7A
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German (de)
English (en)
Other versions
EP3074135A1 (fr
Inventor
Oscar SCHARFE
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.)
PMS Handelskontor GmbH
Original Assignee
PMS Handelskontor 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 PMS Handelskontor GmbH filed Critical PMS Handelskontor GmbH
Publication of EP3074135A1 publication Critical patent/EP3074135A1/fr
Application granted granted Critical
Publication of EP3074135B1 publication Critical patent/EP3074135B1/fr
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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
    • 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
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • 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
    • 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
    • B02C13/26—Details
    • B02C13/288—Ventilating, or influencing air circulation
    • 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
    • B02C13/31—Safety devices or measures
    • 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
    • B02C2013/28609—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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/286—Feeding or discharge
    • B02C2013/28618—Feeding means
    • B02C2013/28672—Feed chute arrangements

Definitions

  • the invention relates to a device for the mechanical comminution of materials, in particular material conglomerates made of different materials.
  • the comminution device comprises a vertically extending comminution chamber with an upper feed side and a downwardly pointing outlet side, which comminution chamber is surrounded by an in particular circular, cylindrical and / or conically downwardly widened comminution chamber wall.
  • the comminution chamber has at least one, preferably at least two, sections which follow one another in the axial direction, in each of which at least one rotor is rotatable about a vertical axis of rotation R and is arranged coaxially to the comminution chamber.
  • the rotor carries percussion tools which, at least during operation, extend at least largely radially into the comminution chamber, e.g. percussion rods or chains.
  • the rotor is held stationary with respect to a support base of the comminution device, on which support base the comminution chamber wall is also supported.
  • Such comminution devices have the comminution chamber aligned vertically, so that the feed side faces upwards and the outlet side faces downwards.
  • a comminuting device is from DE 88 10 234.4 U known.
  • the shredding chamber wall is held adjustable in height relative to the support base in the axial direction R of the shredding device with a lifting device, which lifting device has a first working position in which the lower edge of the shredding chamber wall is arranged close to the support base or a part connected to it, in particular rests against the support base, and a maintenance position in which the lower edge of the shredding wall is raised vertically above at least one of the striking tools of the shredding device.
  • the comminution device contains a speed detection device for the rotor / rotors, which detects whether the rotors are rotating or not, which speed detection device is able to emit a release signal when all rotors are at a standstill.
  • the shredding device contains a safety circuit which only enables power to be supplied to drive the lifting device when the release signal is present.
  • Such a simple electrical device ensures the operation of the lifting device to the extent that it is impossible to lift the cylinders of the comminution chamber wall when the rotor is running. This measure also serves to a considerable extent for the operational safety of the comminuting device. Together with the electrical disconnector described below, 100% occupational safety is guaranteed.
  • the complete size reduction chamber wall is preferably held in a height-adjustable manner by the lifting device. This enables access to the rotor from all sides and thus makes maintenance and repair much easier.
  • the lifting device preferably contains at least one hydraulic cylinder, which on the one hand is fixed in place in connection with the support base, preferably is attached directly to the support base, and on the other hand engages the cylinder chamber wall or a mounting part connected to it.
  • the lifting device preferably has two to four at least predominantly vertically extending, possibly parallel hydraulic cylinders, which in the advantageous case are arranged equidistantly around a central (vertical) axis of the shredding device. In this way, the weight of the shredding chamber wall is evenly distributed over all hydraulic cylinders, which avoids uneven loading of the hydraulic cylinders or tilting of the shredding chamber wall when it is lifted.
  • the lifting device can, for example, be mounted on a support beam which is fixedly arranged with the support base, for example on the floor of a building, or is connected to the support base.
  • the lifting device is arranged or mounted on the support base, i.e. its underside is connected to the support base, which has the advantage that the support base carries all essential components of the shredding device and thus the shredding device is implemented as an integrated arrangement.
  • the lower edge of the comminuting chamber wall preferably rests on it or on the support base, with which the comminution chamber is sealed off from the support base, in which case the outlet is preferably arranged in the area or in the support base.
  • the comminution device preferably has an electrical isolating switch for its drive, which is in contact on the one hand with the support base and on the other with the dividing chamber wall or with contact elements fixedly connected to these elements.
  • the shredding device can only be put into operation when the lifting device is in the working position, which precludes the striking tools from being freely accessible when the shredding device is put into operation.
  • the motor (s) for driving the rotor (s) can therefore only start when the isolating switch is closed, which in turn is only possible when the lifting device is in the working position.
  • Such an embodiment of the invention is therefore very safe to work with.
  • the comminution chamber wall is preferably designed as a cylinder wall with a circular or polygonal base, as is usually used in comminution devices. Such a comminution chamber wall is easy to manufacture, on the one hand, and, on the other hand, can be moved in a simple manner by a lifting device between the maintenance position and the working position.
  • a feed cone is arranged in connection with the shredding chamber wall on the feed side, which cooperates with an inlet funnel, which can be moved separately by the lifting device and / or in connection with the lifting of the shredding chamber wall.
  • an inlet funnel which can be moved separately by the lifting device and / or in connection with the lifting of the shredding chamber wall.
  • an air flow device for guiding a particle / air mixture generated in the comminution chamber is arranged in connection with the comminution chamber.
  • This air flow device has at least one fan rotor which is arranged coaxially to the axis of the shredding chamber and which is driven by its own fan drive.
  • the fan rotor can thus be rotated independently of the rotors of the shredding device.
  • the fan rotor is located under the lower edge of the shredding chamber wall when it is moved from the lifting device into the Maintenance position is raised. In this way, the fan rotor of the air flow device can also be serviced in a simple manner.
  • Each rotor of the comminution device preferably has a fastening device for a detachable fastening of the striking tools, which enables simple replacement of the striking tools when the comminuting chamber wall is raised.
  • a flat distributor base is preferably arranged on or in the support base on the outlet side of the comminution chamber. This makes it possible in a simple manner to provide containers for receiving the different material fractions on the support base, so that the comminution device does not require any additional material or particle guide devices.
  • the comminution device 10 contains a circular-cylindrical comminution chamber wall 12 which surrounds a comminution chamber 14, in the vertical center axis of which two rotors 16, 18 ( Fig. 2 ) are arranged, which are preferably mounted on a support base 20 with their own drives (not shown).
  • the rotors 116, 18 rotate about the vertical axis of rotation R, which also forms the axis of the comminuting device.
  • the comminution chamber 14 extends vertically and has a supply side 15 at the top and an outlet side facing the support base 20.
  • the two rotors 16, 18, which are located in different axial sections of the comminution chamber 14, can thus be driven separately from one another both in different directions of rotation and at different speeds.
  • Each rotor 16, 18 has its own striking tools 22, 24, in the present case for example striking bars, which extend radially into the comminution chamber 14.
  • striking tools 22, 24, in the present case for example striking bars which extend radially into the comminution chamber 14.
  • chains or hinged blow bars can also be used as blow tools.
  • a fan rotor 26 is formed, which is arranged in the support base 20 under a receiving plate 30 arranged on the top of the support base 20 in order to feed the particles, in particular dust-like particles, which arise during the comminution, to an especially lateral outlet for further processing in order to separate the valuable mineral components there.
  • the outlet is preferably arranged at the same height as the fan rotor in order to effectively discharge the comminuted particles.
  • the support base 20 is held on a support frame 28 and the receiving plate 30 for receiving the lower edge of the comminuting chamber wall 12 in the FIG Fig. 1 Working position shown forms the top of the support base 20.
  • the support base 20 has a housing 34 under the receiving plate 30, which houses the drives for the rotors 16, 18 and an exhaust duct.
  • On the frame 28 of the support base 20, four hydraulic cylinders 36 are held in the corner areas, which form the active part of a lifting device.
  • the hydraulic cylinders 36 are connected on their underside to the frame 28 of the support base 20 and are connected on their upper side to horizontal support arms 40 which project radially away from the comminution chamber wall 12.
  • the four hydraulic cylinders 36 with the support arms 40 and an electrical control (not shown) form the lifting device of the comminuting device 10.
  • the grinding chamber wall 12 is located relative to the support base 20 in FIG Fig. 1 working position shown, in which the lower edge 32 of the comminution chamber wall 12 rests on the receiving plate 30 of the support base 20, preferably flush with this. In this way, it is impossible that during the operation of the comminution device comminuted material between the support base 20 and the comminution chamber wall 12 gets to the outside.
  • the comminution chamber wall 12 can be moved into the in Fig.
  • Fig. 3 shows a side view of one of the Fig. 1 and 2 largely identical second embodiment of the invention, identical or functionally identical parts being provided with the same reference numerals.
  • the shredding device 50 is off Fig. 3 differs from the embodiment of the Fig. 1 and 2
  • the top of the adjusting device 56 is horizontal Mounting arms 60 connected, which protrude radially from the inlet funnel 54.
  • the lifting device By actuating the lifting device, ie the hydraulic cylinder 36, in the maintenance position shown, not only the comminution chamber 12 but also the inlet funnel 54 and the feed cone are raised.
  • the size of the gap d between the inlet funnel and the feed cone 58 can be easily adjusted in that, as long as the lower edge 32 of the crushing chamber wall 30 rests on the receiving plate 30 of the support base 20, the adjusting device 56 can be released, in which case by the When the lifting device 36 is actuated, only the inlet funnel 54 is moved relative to the feed cone 58, which in turn is firmly connected to the comminution chamber wall 12.
  • the adjusting device 56 is fixed. Now, when the lifting device is raised, the feed cone and the comminution chamber wall 12 are moved together with the inlet funnel 54, whereby the comminution chamber wall can be moved upwards for maintenance purposes and downwards into the working position.
  • a fan rotor 62 with fan rotor blades 64 which is arranged in the region of the support base 20 and which are part of an air guiding device which is used during the in Fig. 1
  • the operation of the comminution device shown here ensures a defined air flow in the comminution chamber and a discharge of the particularly dust-like particles into an outlet 66 arranged next to it.
  • a collecting container for the comminuted material or a processing plant, for example a cyclone, can be connected to the outlet 66.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)

Claims (16)

  1. Dispositif (10 ; 50) destiné à la fragmentation mécanique de matériaux, comprenant au moins un rotor (16, 18) rotatif sur un axe de rotation (R) vertical, qui est disposé dans une chambre de fragmentation et qui comporte des outils de percussion (22, 24) s'étendant, au moins en fonctionnement, au moins en grande partie radialement dans la chambre de fragmentation, la chambre de fragmentation (14) étant entourée d'une paroi de chambre de fragmentation (12) verticale, en particulier cylindrique circulaire et/ou élargie vers le bas de manière conique, ladite chambre de fragmentation comportant un côté alimentation (15) sur sa face terminale supérieure et un côté sortie sur sa face terminale inférieure ; le rotor (16, 18) étant, à son extrémité inférieure, maintenu fixement par rapport à une base de support (20) du dispositif et la paroi de chambre de fragmentation reposant sur la base de support, la paroi de chambre de fragmentation étant maintenue réglable en hauteur par rapport à la base de support (20) dans la direction de l'axe de rotor (R) au moyen d'un dispositif de levage, le dispositif de levage (36) présentant une position de travail, dans laquelle le bord inférieur de la paroi de chambre de fragmentation est disposé à proximité de la base de support (20) ou d'une pièce reliée à celle-ci, caractérisé en ce que le dispositif de levage (36) présente une position de maintenance, dans laquelle le bord inférieur (32) de la paroi de chambre de fragmentation (12) est levé verticalement au-dessus d'au moins un des outils de percussion (22, 24), et en ce qu'il comporte un dispositif de détection de la vitesse de rotation pour les rotors (16, 18), qui émet un signal d'activation quand tous les rotors sont à l'arrêt, et un circuit de sécurité, qui permet l'alimentation en courant vers un entraînement du dispositif de levage (36) uniquement quand le signal d'activation est présent.
  2. Dispositif (10 ; 50) selon la revendication 1, caractérisé en ce que le dispositif de levage (36) comprend au moins un vérin hydraulique.
  3. Dispositif (10 ; 50) selon la revendication 2, caractérisé en ce que le dispositif de levage (36) comporte deux à quatre vérins hydrauliques verticaux parallèles.
  4. Dispositif (10 ; 50) selon la revendication 3, caractérisé en ce que les vérins hydrauliques (36) sont disposés à équidistance autour de l'axe central du dispositif de fragmentation.
  5. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce que la face inférieure du dispositif de levage (36) est reliée à la base de support (20).
  6. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce qu'il comporte un sectionneur électrique pour l'entraînement des rotors (16, 18), qui est en contact d'une part avec la base de support (20) ou une pièce reliée fixement à celle-ci et d'autre part avec la paroi de chambre de fragmentation (12) ou une pièce reliée fixement à celle-ci.
  7. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce que la paroi de chambre de fragmentation (12) est une paroi cylindrique avec une base circulaire ou polygonale.
  8. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce que la chambre de fragmentation (14) s'étend verticalement avec le côté alimentation (15) en haut et le côté sortie en bas.
  9. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce qu'un cône de chargement (58) est disposé en liaison avec la chambre de fragmentation (14) sur le côté alimentation (15), ledit cône de chargement pouvant être déplacé séparément et/ou en liaison avec la paroi de chambre de fragmentation (12) par le dispositif de levage (36).
  10. Dispositif (10 ; 50) selon la revendication 9, caractérisé en ce qu'une trémie d'entrée (54) est reliée à la paroi de chambre de fragmentation (12) sur le côté alimentation (15) de celle-ci, et en ce que la distance (d) entre la trémie d'entrée et le cône de chargement peut être réglée par un moyen de réglage (56) par le biais de l'actionnement du dispositif de levage (36).
  11. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce qu'un moyen d'écoulement d'air (62, 64) pour guider un mélange particules/air généré dans la chambre de fragmentation (14) est disposé en liaison avec la chambre de fragmentation (14), ledit moyen d'écoulement d'air comportant au moins un rotor de ventilateur (62) disposé de manière coaxiale par rapport à l'axe de la chambre de fragmentation, qui est entraîné (25) par un entraînement de ventilateur propre, pour faire tourner le rotor de ventilateur (62) indépendamment des rotors (16, 18), le rotor de ventilateur se trouvant sous le bord inférieur (32) de la paroi de chambre de fragmentation (12), quand celle-ci est levée dans la position de maintenance du dispositif de levage (36).
  12. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce que, en position de maintenance du dispositif de levage (36), le bord inférieur (32) de la paroi de chambre de fragmentation (12) est levé au-dessus du point de fixation des outils de percussion (22, 24) de tous les rotors (16, 18).
  13. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce que les rotors (16, 18) sont maintenus sur la base de support (20).
  14. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce que, en position de travail du dispositif de levage (36), le bord inférieur (32) de la paroi de chambre de fragmentation (12) est en contact avec la base de support (20).
  15. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce que la chambre de fragmentation (14) comporte au moins deux parties se suivant dans la direction axiale, dans lesquelles respectivement au moins un rotor (16, 18) est disposé de manière coaxiale par rapport à la chambre de fragmentation, chaque rotor comportant des outils de percussion (22, 24) s'étendant, au moins en fonctionnement, au moins en grande partie radialement dans la chambre de fragmentation.
  16. Dispositif (10 ; 50) selon l'une des revendications précédentes, caractérisé en ce que toute la paroi de chambre de fragmentation est maintenue réglable en hauteur par le dispositif de levage.
EP15826134.7A 2015-02-18 2015-11-23 Dispositif de fragmentation Active EP3074135B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015102326 2015-02-18
PCT/DE2015/100497 WO2016131433A1 (fr) 2015-02-18 2015-11-23 Dispositif de fragmentation

Publications (2)

Publication Number Publication Date
EP3074135A1 EP3074135A1 (fr) 2016-10-05
EP3074135B1 true EP3074135B1 (fr) 2021-06-23

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EP15826134.7A Active EP3074135B1 (fr) 2015-02-18 2015-11-23 Dispositif de fragmentation

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Country Link
US (1) US11278907B2 (fr)
EP (1) EP3074135B1 (fr)
JP (1) JP6370499B2 (fr)
CN (1) CN107249747B (fr)
AU (1) AU2015383637B2 (fr)
BR (1) BR112017011751B1 (fr)
CA (1) CA2966255C (fr)
CL (1) CL2017001246A1 (fr)
ES (1) ES2881864T3 (fr)
MX (1) MX2017006681A (fr)
PE (1) PE20171115A1 (fr)
RU (1) RU2654255C1 (fr)
WO (1) WO2016131433A1 (fr)

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RU2654255C1 (ru) 2018-05-17
CL2017001246A1 (es) 2017-11-24
US20180339297A1 (en) 2018-11-29
JP6370499B2 (ja) 2018-08-08
CA2966255C (fr) 2018-09-25
CN107249747B (zh) 2019-04-23
CN107249747A (zh) 2017-10-13
US11278907B2 (en) 2022-03-22
PE20171115A1 (es) 2017-08-07
WO2016131433A1 (fr) 2016-08-25
AU2015383637A1 (en) 2017-05-25
EP3074135A1 (fr) 2016-10-05
MX2017006681A (es) 2017-10-04
CA2966255A1 (fr) 2016-08-25
JP2018505054A (ja) 2018-02-22
BR112017011751A2 (pt) 2018-02-27
BR112017011751B1 (pt) 2021-06-08
ES2881864T3 (es) 2021-11-30
AU2015383637B2 (en) 2018-02-22

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