EP0787528B1 - Broyeur à vortex - Google Patents

Broyeur à vortex Download PDF

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Publication number
EP0787528B1
EP0787528B1 EP96119732A EP96119732A EP0787528B1 EP 0787528 B1 EP0787528 B1 EP 0787528B1 EP 96119732 A EP96119732 A EP 96119732A EP 96119732 A EP96119732 A EP 96119732A EP 0787528 B1 EP0787528 B1 EP 0787528B1
Authority
EP
European Patent Office
Prior art keywords
base portion
mill according
cylindrical wall
rotor
section
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.)
Expired - Lifetime
Application number
EP96119732A
Other languages
German (de)
English (en)
Other versions
EP0787528A1 (fr
Inventor
Josef Fischer
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.)
Individual
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Individual
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 Individual filed Critical Individual
Publication of EP0787528A1 publication Critical patent/EP0787528A1/fr
Application granted granted Critical
Publication of EP0787528B1 publication Critical patent/EP0787528B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B02C13/14—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
    • B02C2013/145—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with fast rotating vanes generating vortexes effecting material on material impact

Definitions

  • the invention relates to an eddy current mill, with a Bottom part, which is rotatable in a bearing housing mounted rotor and an upward, has a cylindrical wall part coaxial to the rotor axis, and with a grinder housing, which with a conical Grinding track encloses the rotor and one facing downwards has cylindrical collar which in the cylindrical Wall part axially displaceable and for setting the Axial grinding gap existing between rotor and grinding track is adjustable.
  • a mill is known from DE-A-2353907.
  • the grinder housing In eddy current mills of this type must from time to time the grinder housing can be removed from the base part so that the inside of the mill, in particular the rotor, is accessible for cleaning and maintenance purposes.
  • the grinding housing in the connection on the cylindrical collar one to the outside protruding flange on that with several axial Holes is provided. There are screws in these holes used in axial threaded holes in the cylindrical wall part are screwed. Between the upward edge of the cylindrical wall part and the flange are inserted through which determines the size of the grinding gap. If the grinder opened for cleaning and maintenance purposes the screws are removed first and then you have the cylindrical collar, the one Forms part of the grinder housing, carefully in axial direction upwards from the cylindrical wall part pull out.
  • the grinder housing must be installed on the bottom part the cylindrical collar again exactly in the axial direction in the cylindrical Wall part to be introduced. Because the grinder housing is relatively is heavy and depending on the size of the grinder The assembly can weigh 60 and 800 kg difficult because there are also hoists, e.g. a crane, must be used.
  • the invention is therefore based on the object To create eddy current mill of the type mentioned at the beginning, in which the grinder housing in a simple manner from the bottom part can be dismantled or reassembled on this.
  • the upper bottom section via a swivel device to connect to the support frame, which also carries the lower bottom section.
  • this Swiveling device can from the lower bottom section detached upper bottom section together with the grinding housing, which is connected to the upper bottom section remains, simply be swung up without a hoist is required.
  • Another advantage of Eddy current mill according to the invention can be seen in that when dismantling the upper bottom section from the lower bottom section the grinder housing always can remain connected to the upper bottom section. This leaves the axial adjustment between the cylindrical collar and the cylindrical wall part and to maintain the setting of the grinding gap. The Grinding gap must therefore be after cleaning or maintenance cannot be set again.
  • the bottom part of the Eddy current mill according to the invention consists of a upper bottom section 1a and a lower bottom section 1b.
  • the lower bottom section 1b carries a bearing housing 2 in which the rotor 3 is rotatably supported is.
  • the upper bottom section 1a contains a cylindrical wall part 5. This is with a flange 6 arranged at its lower end firmly connected.
  • the flange 6 fits with a flange 7 together, that with the upper end of the lower bottom section 1b is firmly connected.
  • Screws 8 are provided for detachable Connection of the two flanges 6, 7 .
  • the parting plane E between the upper bottom section 1a and the lower bottom section 1b runs perpendicular to the rotor axis A.
  • the grinding housing 9 has a conical, i.e. frustoconical Mahlbahn 10 on.
  • This grinding track 10 encloses the rotor 3, so that between the attached to the rotor 3 Grinding tools 3a and the grinding track 10 a grinding gap S remains.
  • the grinding housing 9 also points downwards directed cylindrical collar 11, which in the cylindrical wall part 5 is axially displaceable.
  • the Collar 11 is firmly connected to the grinding housing 9 or forms an integral part of the grinder housing.
  • At the upper end of the collar 11 is an outward Flange 12 provided.
  • the axial adjustment between the collar 11 and the cylindrical wall part 5 and thus also the width of the grinding gap S can be changed.
  • the grinding housing 9 After setting the desired grinding gap width S, the grinding housing 9 with the upper bottom section 1a by means of the screws 15 screwed tight.
  • the collar 11 and the cylindrical wall part 5 are arranged coaxially to the rotor axis A.
  • the lower bottom section 1b is in accordance with FIG screwed to a support frame 16, on which also the Drive motor, not shown, can be attached.
  • support frame 16 On the support frame 16 support plates 17 are attached, which carry a pivot axis 18.
  • the pivot axis 18 extends perpendicular to the rotor axis A. Because in the shown Embodiment the rotor axis A vertical runs, the pivot axis 18 is arranged horizontally.
  • the pivot axis 18 is at a lateral distance from the two bottom sections 1a, 1b arranged. she is expediently on or near the parting plane E. intended.
  • the pivot axis 18 is used to support a Swivel arm 19, which partly consists of a side approach 6a of the flange 6, which in turn is a component of the upper bottom section 1a.
  • the swivel arm 19 is part of a swivel device, with which the upper bottom section 1a and the grinding housing 9 screwed to it is pivoted upwards can be, as shown in Figure 1, left is.
  • the pivoting device is a piston-cylinder unit 20 on that between the swivel arm 19 and the support frame 16 is arranged.
  • the grinder housing for cleaning or maintenance purposes should be opened, then it is only required, the screws 8, the flanges 6 and 7 of the two bottom sections 1a and 1b with each other connect, solve.
  • the grinder housing remains via the screws 12 firmly to the upper bottom section 1a screwed so that no change in the Grinding gap S occurs.
  • the piston-cylinder unit 20 is actuated.
  • the swivel arm 19 and thus the one connected to it upper bottom section 1a together with the grinding housing 9 pivoted upward, as shown in Figure 1, left is.
  • the rotor 3 lies free. It can be cleaned. If necessary , the grinding tools 3a can be replaced.
  • FIG 3 is yet another embodiment of the Swivel device shown.
  • the swivel arm 19 'over a parallel to the pivot axis 18 Axle 21 articulated with the upper bottom section connected. It is also a parallelogram link 22 provided that both at the upper bottom section 1a and also articulated on the support frame or its support plates 17 is.
  • the remaining parts of the swivel device and the mill correspond to that described above Embodiment, so they are not here again are described.
  • the upper bottom section 1a and with it connected grinding housing 9 always in a horizontal position held, so in a position that they can also be assembled Take state.
  • This type of swivel device is especially for mills of larger design suitable and for those with a pure swivel movement of the upper bottom section 1a and Grinder housing 9 to a collision between these parts and could lead the rotor.

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

Claims (9)

  1. Broyeur à vortex avec une pièce de fond (1a, 1b) portant un rotor (3) placé de manière rotative dans un boítier de palier et présentant une partie de paroi (5) cylindrique dirigée vers le haut et coaxiale à l'axe du rotor, et avec un boítier de broyage (9) qui entoure le rotor (3) avec une voie de broyage (10) conique et présente un col (11) cylindrique dirigé vers le bas qui est déplaçable axialement dans la partie de paroi cylindrique (5) et est réglable axialement pour le réglage de la fente de broyage (S) présente entre le rotor (3) et la voie de broyage (10), caractérisé en ce que la pièce de fond (1a, 1b) située sous la partie déplaçable, dans laquelle le col cylindrique (11) peut être déplacé dans la partie de paroi (5) cylindrique, est divisée le long d'un niveau de séparation (E) perpendiculaire à l'axe du rotor (A) en une section de fond supérieure (1a) et une section de fond inférieure (1b), raccordées entre elles de façon amovible, et dont la section de fond supérieure (1a) contient la partie de paroi (5) cylindrique et la section de fond inférieure (1b) contient le boítier de palier du rotor (2).
  2. Broyeur selon la revendication 1, caractérisé en ce que les deux sections de fond (1a, 1b) sont munies de brides (6, 7) ajustées sur leurs extrémités dirigées l'une vers l'autre.
  3. Broyeur selon la revendication 2, caractérisé en ce que les deux brides (6, 7) sont raccordées entre elles de façon amovible au moyen de vis (8).
  4. Broyeur selon l'une des revendications 1 à 3, caractérisé en ce que la section de fond inférieure (1b) est fixée dans un cadre porteur (16) et en ce qu'avec la section de fond supérieure (1a) est placé un dispositif pivotant (19, 20), dont l'axe de rotation (18) est perpendiculaire à l'axe de rotation (A) dans le cadre porteur (16) avec un écart latéral entre les deux sections de fond (1a, 1b).
  5. Broyeur selon la revendication 4, caractérisé en ce que le dispositif pivotant comprend au moins un bras pivotant (6a, 19) rotatif autour de l'axe de rotation (18).
  6. Broyeur selon la revendication 5, caractérisé en ce que le bras pivotant (6a, 19) est raccordé de façon rigide avec la section de fond supérieure (1a).
  7. Broyeur selon la revendication 5, caractérisé en ce que le bras pivotant (19') est raccordé à la section de fond supérieure (1a) par un axe (21) parallèle à l'axe de rotation (18) et qu'un guide parallélogramme (22) est articulé sur celle-ci et sur le cadre porteur (16).
  8. Broyeur selon l'une des revendications 4 à 7, caractérisé en ce que le dispositif de pivotement comprend une unité piston-cylindre (20) agissant entre le bras pivotant (19, 19') et le cadre porteur (16).
  9. Broyeur selon l'une des revendications 4 à 8, caractérisé en ce que l'axe de rotation (18) est placé dans le niveau de séparation (E) ou à proximité de celui-ci.
EP96119732A 1996-02-01 1996-12-10 Broyeur à vortex Expired - Lifetime EP0787528B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19603627A DE19603627C2 (de) 1996-02-01 1996-02-01 Wirbelstrommühle
DE19603627 1996-02-01

Publications (2)

Publication Number Publication Date
EP0787528A1 EP0787528A1 (fr) 1997-08-06
EP0787528B1 true EP0787528B1 (fr) 1999-07-14

Family

ID=7784263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96119732A Expired - Lifetime EP0787528B1 (fr) 1996-02-01 1996-12-10 Broyeur à vortex

Country Status (4)

Country Link
EP (1) EP0787528B1 (fr)
AT (1) ATE182088T1 (fr)
DE (1) DE19603627C2 (fr)
ES (1) ES2135837T3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7445806B2 (en) 2004-09-02 2008-11-04 Kraft Foods Global Brands Llc Process for selective grinding and recovery of dual-density foods
EP2052778A1 (fr) 2007-10-25 2009-04-29 Microtec GmbH Moulin à courant de Foucault, ainsi qu'outil de broyage et anneau de broyage correspondants
DE102007051393A1 (de) 2007-10-25 2009-04-30 Microtec Gmbh Wirbelstrommühle, sowie Mahlwerkzeug und Mahlring dafür
EP2065090A1 (fr) 2007-11-29 2009-06-03 Microtec GmbH Moulin à courant de Foucault
EP2070596A1 (fr) 2007-12-13 2009-06-17 Microtec GmbH Moulin à courant de Foucault
EP2319625A1 (fr) 2009-11-05 2011-05-11 MICROTEC GmbH Moulin à courant de Foucault et outil de broyage correspondant
JP2011526204A (ja) * 2008-06-25 2011-10-06 リーハイ テクノロジーズ， インコーポレイテッド 円錐形状衝撃式ミル
DE102013002237B3 (de) * 2013-02-11 2014-05-22 Microtec Gmbh Sichtermühle
US9357791B2 (en) 2010-07-16 2016-06-07 Kraft Foods R & D, Inc. Coffee products and related processes
US10766038B2 (en) 2015-08-27 2020-09-08 Josef Fischer Cryogenic grinding apparatus and process

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8067051B2 (en) 2006-06-19 2011-11-29 Kraft Foods R & D, Inc. Process for milling cocoa shells
US7900860B2 (en) 2007-04-05 2011-03-08 Lehigh Technologies, Inc. Conical-shaped impact mill
EP2377618A1 (fr) 2010-04-14 2011-10-19 Air Products And Chemicals, Inc. Moulin à impact rotatif
CA2966255C (fr) 2015-02-18 2018-09-25 Pms Handelskontor Gmbh Dispositif de fragmentation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2353907C3 (de) * 1973-10-27 1980-01-31 Krauss-Maffei Ag, 8000 Muenchen Prallmühle

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7445806B2 (en) 2004-09-02 2008-11-04 Kraft Foods Global Brands Llc Process for selective grinding and recovery of dual-density foods
EP2052778A1 (fr) 2007-10-25 2009-04-29 Microtec GmbH Moulin à courant de Foucault, ainsi qu'outil de broyage et anneau de broyage correspondants
DE102007051393A1 (de) 2007-10-25 2009-04-30 Microtec Gmbh Wirbelstrommühle, sowie Mahlwerkzeug und Mahlring dafür
DE102007051393B4 (de) * 2007-10-25 2015-03-05 Lehigh Technologies, Inc., (n. d. Ges. d. Staates Delaware) Wirbelstrommühle, sowie Mahlwerkzeug und Mahlring dafür
EP2065090A1 (fr) 2007-11-29 2009-06-03 Microtec GmbH Moulin à courant de Foucault
DE102007057565A1 (de) 2007-11-29 2009-06-04 Microtec Gmbh Wirbelstrommühle, Rotor und Stator, sowie Mahlbahn-Einsatz und Mahlwerkzeug-Einsatz dafür
DE102007060072B4 (de) * 2007-12-13 2013-03-28 Lehigh Technologies, Inc. Wirbelstrommühle
EP2070596A1 (fr) 2007-12-13 2009-06-17 Microtec GmbH Moulin à courant de Foucault
DE102007060072A1 (de) 2007-12-13 2009-06-18 Microtec Gmbh Wirbelstrommühle
JP2011526204A (ja) * 2008-06-25 2011-10-06 リーハイ テクノロジーズ， インコーポレイテッド 円錐形状衝撃式ミル
DE102009053150A1 (de) 2009-11-05 2011-05-12 Microtec Gmbh Wirbelstrommuehle und Mahlwerkzeug dafür
EP2319625A1 (fr) 2009-11-05 2011-05-11 MICROTEC GmbH Moulin à courant de Foucault et outil de broyage correspondant
DE202009019131U1 (de) 2009-11-05 2017-01-22 Microtec Gmbh Wirbelstrommühle und Mahlwerkzeug dafür
US9357791B2 (en) 2010-07-16 2016-06-07 Kraft Foods R & D, Inc. Coffee products and related processes
DE102013002237B3 (de) * 2013-02-11 2014-05-22 Microtec Gmbh Sichtermühle
EP2764921A1 (fr) 2013-02-11 2014-08-13 MICROTEC GmbH Broyeur classificateur
US10766038B2 (en) 2015-08-27 2020-09-08 Josef Fischer Cryogenic grinding apparatus and process

Also Published As

Publication number Publication date
DE19603627A1 (de) 1997-08-07
ES2135837T3 (es) 1999-11-01
DE19603627C2 (de) 1998-04-23
ATE182088T1 (de) 1999-07-15
EP0787528A1 (fr) 1997-08-06

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