EP1413357A1 - Outil de moulage pour broyeur à vortex - Google Patents

Outil de moulage pour broyeur à vortex Download PDF

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Publication number
EP1413357A1
EP1413357A1 EP03024547A EP03024547A EP1413357A1 EP 1413357 A1 EP1413357 A1 EP 1413357A1 EP 03024547 A EP03024547 A EP 03024547A EP 03024547 A EP03024547 A EP 03024547A EP 1413357 A1 EP1413357 A1 EP 1413357A1
Authority
EP
European Patent Office
Prior art keywords
grinding
edge
wear plate
rotor
fastened
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Withdrawn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
EP03024547A
Other languages
German (de)
English (en)
Inventor
Otmar Dipl.-Ing. Hornberger
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.)
Cemag Anlagenbau GmbH
Original Assignee
Cemag Anlagenbau 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 Cemag Anlagenbau GmbH filed Critical Cemag Anlagenbau GmbH
Publication of EP1413357A1 publication Critical patent/EP1413357A1/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Withdrawn legal-status Critical Current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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B02C13/2804—Shape or construction of beater elements the beater elements being 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
    • B02C13/14—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 a grinding tool for an eddy current mill, the grinding tool having a wear plate and being attachable to the edge of a tool carrier ring of a rotor.
  • the eddy current mill is usually composed of a stator and a rotor, the rotor in turn being composed of a main rotor, which is essentially the hub of the rotor, and one or more tool carrier rings which are seated on support rings of the main rotor.
  • the grinding tools are attached to the outer edge of the tool carrier rings.
  • Each grinding tool can be an angle, which is fastened with its first leg to the tool carrier ring, while the second leg projects from it at an angle of 90 ° and lies in an axial plane of the rotor or in a plane parallel to it.
  • the outer edge of the wear plate is the grinding edge and the grinding tools are arranged on the circumference of the rotor so that the grinding edges move along the inner wall of the stator, the grinding track, at a short distance, the grinding gap.
  • the grinding gap forms the grinding zone.
  • the rotor and the stator usually expand conically downwards and the grinding tools are arranged in a plurality of rings which are staggered along the axis of the rotor.
  • the grinding track on the inner wall of the stator can be axially corrugated.
  • the grinding tools are extremely robust.
  • the grinding edges of the wear plates run parallel to the inner wall of the stator. In order to achieve a good grinding effect, it is important that the grinding edges are sharp. In operation, they are exposed to high wear and tear shown that a rounding with a radius of 1 mm can reduce the grinding effect by more than 50%.
  • the wear plates are made of hard metal. Conventionally, the wear plates are glued or soldered to the angle and the angles are completely replaced when the grinding edge is worn.
  • the invention is based on the object of reducing the costs arising from the wear of the grinding tools.
  • this object is achieved in that the wear plate is detachably fastened so that it can be fastened in several orientations and in each case a different edge acts as the grinding edge.
  • the wear plate can be releasably clamped to the second leg of the bracket, so that it can be aligned in several positions and a different side acts as a grinding edge.
  • the wear plate can e.g. be tensioned against the second leg of the angle by inserting a Belleville washer using a cylinder screw.
  • the plate is preferably diamond-shaped, so that all eight edges can be used as grinding edges.
  • the attachment is conveniently carried out in the middle, e.g. by a cylinder screw that is passed through a central hole in the wear plate.
  • the wear plate can also be square.
  • the four edges of one side of the wear plate can then be used as a grinding edge by simple rotation through 90 ° and the four edges of the other side can be turned by turning the plate.
  • the wear plate is arranged so that the grinding edge currently in use is parallel to the inner wall of the stator, so that the grinding gap has a uniform width.
  • the wear plate is preferably made of hard metal.
  • the eddy current mill as shown in FIG. 1, has a frame 10 which carries a drive motor 12 arranged with a vertical axis as well as a rotor 14 and a stator 16, which are likewise arranged with a vertical axis.
  • the drive motor 12 drives the rotor 14 via a belt drive 18.
  • the rotor shaft 20 is mounted with a vertical axis in a bearing housing 21 and this is mounted on a receiving housing 23.
  • the rotor shaft 20 ends at the top in a pin 22 protruding from the bearing 21, on which the rotor 14 is arranged in a rotationally fixed manner.
  • the rotor 14 is composed of a two-shell rotor core with an inner shell 26 and an outer shell 28, an upper and a lower tool carrier ring 30, 32 and grinding tools 34.
  • the inner shell 26 sits rotationally fixed on the pin 22 of the rotor shaft 20 and is connected to the outer shell 28 at the lower end by means of an annular web plate 36 and at the upper end by means of a cover plate 38.
  • the upper and lower tool carrier rings 30, 32 are each supported by support rings 40 which protrude from the outer shell 28.
  • An intermediate plate 42 is arranged between the two support rings 40 and the rotor 14 is closed at the bottom by a base plate 44.
  • the grinding tools 34 are attached to the top and bottom of the tool carrier rings 30, 32 (FIGS. 3 to 5).
  • the grinding tools 34 each have an angle 46 with a first leg 48 and with a second leg 50 projecting perpendicularly therefrom.
  • the first leg 48 is clamped on the tool carrier ring 30, 32 by means of a first cylinder barrier 52 such that the second leg 50 lies in an axial plane.
  • the alignment of the angle 46 is secured by a roll pin 53 between the second leg 50 and the tool carrier ring 30.
  • a wear plate 54 is clamped against the second leg 50 by means of a second cylinder screw 56 and a plate spring 57.
  • the wear plate 54 has a central bore 58.
  • the wear plate 54 is diamond-shaped, so that one edge, the grinding edge 60, is aligned parallel to the inner side wall 62 (FIG. 2) of the stator 16, while the adjoining edges run horizontally and at right angles to the rotor axis.
  • the lower edge of the wear plate 54 is seated on the tool carrier ring 30, 32, as a result of which the wear plate 54 is inevitably aligned during assembly.
  • a large number of such grinding tools 34 are arranged at the same angular distance on the top and bottom of each tool carrier ring 30, 32.
  • the wear plates 54 are made of hard metal and have a thickness of approximately 4 mm.
  • the edge surfaces 64 are each at right angles to the main plane of the wear plates 54. The edges between the edge surfaces 64 and both sides of the wear plates 54 are all sharp when new. If the grinding edge 60 has become blunt in use, the wear plate 54 is mounted rotated through the second cylinder screw 56 by 180 °, so that the opposite edge is now used as the grinding edge 60. If this edge has also become blunt, the wear plate 54 is turned over and first one and then the other intermediate edge of the opposite side of the wear plate 54 is used. The four remaining edges can then be used in the same way by mounting the wear plate 54 on the other side of the tool carrier ring 30, 32.
  • the wear plate 54 can also be square. The four edges on one side of the wear plate 54 can then be used one after the other by turning through 90 ° as the grinding edge 60. By turning the wear plate 54, the four edges on the opposite side of the wear plate 54 can then be used as the grinding edge 60.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP03024547A 2002-10-25 2003-10-27 Outil de moulage pour broyeur à vortex Withdrawn EP1413357A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20216551U 2002-10-25
DE20216551U DE20216551U1 (de) 2002-10-25 2002-10-25 Mahlwerkzeug für eine Wirbelstrommühle

Publications (1)

Publication Number Publication Date
EP1413357A1 true EP1413357A1 (fr) 2004-04-28

Family

ID=7976375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03024547A Withdrawn EP1413357A1 (fr) 2002-10-25 2003-10-27 Outil de moulage pour broyeur à vortex

Country Status (2)

Country Link
EP (1) EP1413357A1 (fr)
DE (1) DE20216551U1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP2010523313A (ja) * 2007-04-05 2010-07-15 リーハイ テクノロジーズ， インコーポレイテッド 円錐形状のインパクトミル
EP2319625A1 (fr) 2009-11-05 2011-05-11 MICROTEC GmbH Moulin à courant de Foucault et outil de broyage correspondant
DE102010009894A1 (de) 2010-03-02 2011-09-08 Rolf Schatz Rotor-Mahlwerkzeug für Rotorprallmühlen
CN104722357A (zh) * 2015-03-27 2015-06-24 浙江浙矿重工股份有限公司 一种立轴式制砂机
CN108816386A (zh) * 2018-06-29 2018-11-16 徐诗琪 一种生物教学用植物研磨器材

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007060072B4 (de) * 2007-12-13 2013-03-28 Lehigh Technologies, Inc. Wirbelstrommühle
CN102989551A (zh) * 2012-10-24 2013-03-27 应志恩 一种碎料机
DE202016106563U1 (de) * 2016-11-23 2018-03-08 Altenburger Maschinen Jäckering GmbH Aufnahmeelement zur Befestigung eines Mahlwerkzeugelements an einem Rotorelement einer Luftwirbelmühle

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1876416A (en) * 1928-08-28 1932-09-06 J D Canary Grinding mill
US1911193A (en) * 1927-10-07 1933-05-30 James D Canary Pulverizer
US2310758A (en) * 1940-07-15 1943-02-09 Nordberg Manufacturing Co Impact member for impact crushers
US2357843A (en) * 1942-05-04 1944-09-12 Stephen J Morrissey Rock breaker
US3300151A (en) * 1964-01-09 1967-01-24 Zifferer Lothar Robert Vortex grinding mill
US3432110A (en) * 1966-07-19 1969-03-11 Ronald Frederick Bourne Mounting of beater and like blades on rotors
DE2702843A1 (de) * 1977-01-25 1978-07-27 Wahl Verschleiss Tech Schlagleiste fuer rotoren von prallmuehlen zur hartzerkleinerung
US4699326A (en) * 1984-06-22 1987-10-13 Cedarapids, Inc. Vertical shaft impact crusher with split tub
US5950945A (en) * 1998-08-06 1999-09-14 The Monee Group, Ltd. Impact member for comminuter

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1911193A (en) * 1927-10-07 1933-05-30 James D Canary Pulverizer
US1876416A (en) * 1928-08-28 1932-09-06 J D Canary Grinding mill
US2310758A (en) * 1940-07-15 1943-02-09 Nordberg Manufacturing Co Impact member for impact crushers
US2357843A (en) * 1942-05-04 1944-09-12 Stephen J Morrissey Rock breaker
US3300151A (en) * 1964-01-09 1967-01-24 Zifferer Lothar Robert Vortex grinding mill
US3432110A (en) * 1966-07-19 1969-03-11 Ronald Frederick Bourne Mounting of beater and like blades on rotors
DE2702843A1 (de) * 1977-01-25 1978-07-27 Wahl Verschleiss Tech Schlagleiste fuer rotoren von prallmuehlen zur hartzerkleinerung
US4699326A (en) * 1984-06-22 1987-10-13 Cedarapids, Inc. Vertical shaft impact crusher with split tub
US5950945A (en) * 1998-08-06 1999-09-14 The Monee Group, Ltd. Impact member for comminuter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010523313A (ja) * 2007-04-05 2010-07-15 リーハイ テクノロジーズ， インコーポレイテッド 円錐形状のインパクトミル
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
DE102007057565A1 (de) 2007-11-29 2009-06-04 Microtec Gmbh Wirbelstrommühle, Rotor und Stator, sowie Mahlbahn-Einsatz und Mahlwerkzeug-Einsatz dafür
EP2319625A1 (fr) 2009-11-05 2011-05-11 MICROTEC GmbH Moulin à courant de Foucault et outil de broyage correspondant
DE102009053150A1 (de) 2009-11-05 2011-05-12 Microtec Gmbh Wirbelstrommuehle und Mahlwerkzeug dafür
DE202009019131U1 (de) 2009-11-05 2017-01-22 Microtec Gmbh Wirbelstrommühle und Mahlwerkzeug dafür
DE102010009894A1 (de) 2010-03-02 2011-09-08 Rolf Schatz Rotor-Mahlwerkzeug für Rotorprallmühlen
CN104722357A (zh) * 2015-03-27 2015-06-24 浙江浙矿重工股份有限公司 一种立轴式制砂机
CN108816386A (zh) * 2018-06-29 2018-11-16 徐诗琪 一种生物教学用植物研磨器材

Also Published As

Publication number Publication date
DE20216551U1 (de) 2003-01-02

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