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EP2176001B1 - Broyeur agitateur - Google Patents

Broyeur agitateur Download PDF

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Publication number
EP2176001B1
EP2176001B1 EP08784395.9A EP08784395A EP2176001B1 EP 2176001 B1 EP2176001 B1 EP 2176001B1 EP 08784395 A EP08784395 A EP 08784395A EP 2176001 B1 EP2176001 B1 EP 2176001B1
Authority
EP
European Patent Office
Prior art keywords
agitator
shaft
bearing
mill
agitator mill
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
EP08784395.9A
Other languages
German (de)
English (en)
Other versions
EP2176001A2 (fr
Inventor
Udo Enderle
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.)
Netzsch Feinmahltechnik GmbH
Original Assignee
Netzsch Feinmahltechnik 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 Netzsch Feinmahltechnik GmbH filed Critical Netzsch Feinmahltechnik GmbH
Publication of EP2176001A2 publication Critical patent/EP2176001A2/fr
Application granted granted Critical
Publication of EP2176001B1 publication Critical patent/EP2176001B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/181—Bearings specially adapted for tumbling mills

Definitions

  • the invention relates to a stirred mill according to the preamble of claim 1.
  • Stirrer mills and in particular stirred ball mills are known, which for grinding solids in fluids (eg air or water) a grinding container, which surrounds a grinding chamber, which is connected to an inlet and an outlet for material to be ground contains a stirring shaft, outside the grinding container mounted on both sides or on one side, wherein the bearing of the agitator shaft includes an axially force-absorbing fixed bearing in a bearing housing and a radially force-absorbing floating bearing in a bearing housing. Due to the specific types and types of fixed bearing and floating bearing results in a high construction cost for the entire mill.
  • fluids eg air or water
  • the document AU-M-40325/95 describes an attrition mill with a stirrer shaft, which is held outside the grinding container via two bearings.
  • the invention has the goal to reduce the structural complexity of agitator mills.
  • the invention thus provides an agitator mill comprising a grinding container surrounding a grinding chamber connected to an inlet and an outlet for material to be ground, and a stirring shaft which is cantilevered outside the grinding container, the bearing supporting the stirring shaft axially and radially force-absorbing fixed bearing in a bearing housing and a radial force-absorbing movable bearing in a floating bearing housing, further having the fixed bearing and floating bearing separate housing, which are the same size or the same dimensioned, the movable bearing sitting from the grinding container from sitting in front of the bearing and the Fixed bearing housing is axially and / or radially adjustable.
  • a preferred embodiment is that the floating bearing housing is radially adjustable.
  • the fixed bearing for the storage of the stirring shaft contains a withdrawal sleeve. It is further provided that the inner diameter of the withdrawal sleeve of the fixed bearing is smaller than the inner diameter of the clamping sleeve of the floating bearing.
  • the loose bearing for supporting the agitator shaft contains a clamping sleeve bearing, in particular with an adjustable role play.
  • the floating bearing housing for the agitator shaft in particular on both sides depending on a shaft bushing, in which at least one labyrinth seal is seated to seal the floating bearing housing relative to the agitator shaft.
  • the bearing housing for the agitator shaft at least on its side facing the floating bearing, has a shaft leadthrough in which at least one labyrinth seal is seated, around the bearing housing Seal against the stirring shaft.
  • a further preferred embodiment is characterized in that the fixed bearing contains rolling elements and associated bearing shells, wherein the outer ring is connected directly or via the fixed rings with the fixed bearing housing and the inner ring in the direction of shaft end of the agitator shaft of a shaft nut which presses on a sleeve with the stirring shaft is braced.
  • the inner ring of the fixed bearing has a conical bore which sits on a Abziehülse, which is also conically shaped and tapers in the direction of the floating bearing.
  • the grinding container for fixed and floating bearing for the agitator shaft has a passage which contains a stuffing box packing or lip seal or mechanical seal for sealing between grinding container and stirring shaft.
  • a stuffing box packing or lip seal or mechanical seal for sealing between grinding container and stirring shaft.
  • the stirring shaft carries within the grinding container a plurality of grinding discs, which preferably have a plurality of apertures, which are in particular circular, oval or trapezoidal.
  • a separation device upstream of the outlet which in particular contains a sieve and / or a cage in order to separate grinding aids from ground product, wherein the cage is preferably connected to the stirring shaft so that it can co-rotate with it.
  • the sieve has larger openings than the diameter of the grinding bodies.
  • the agitator mill is an agitator ball mill and / or an electric motor is provided for driving the agitator shaft, wherein the fixed bearing and the movable bearing are arranged in the power flow between the electric motor and the grinding container.
  • a lip seal or a mechanical seal can be provided for sealing between the grinding container and the agitator shaft.
  • FIG. 1 schematically an agitator ball mill 1 as an example of an agitator mill R is shown.
  • the agitating ball mill 1 comprises a grinding container 2, which surrounds a grinding chamber 3, which is connected to an inlet 4 and an outlet 5 for material to be ground (not shown), and a stirring shaft 6, which is mounted outside the grinding container 2.
  • a stirring shaft 6 is a storage. 7 with, like that Fig. 2 and 3
  • an axially and radially force-absorbing bearing 8 in a fixed bearing housing 9 and a radial force-absorbing movable bearing 10 in a floating bearing housing 11 is provided.
  • the floating bearing 10 is viewed from the grinding container 2 from before the fixed bearing 8.
  • the bearing housing 9 and the floating bearing housing 11 are the same size and the same size and are the same in the rest.
  • a fixed bearing radial adjustment 13 is provided, which is symbolized only by way of example by adjusting screws 14 and 15. Furthermore, there is a floating bearing radial adjustment 16, which is also symbolized only by way of example by adjusting screws 17 and 18. In addition, a fixed bearing axial adjustment 19 symbolized by adjusting screws 20 and 21 is still provided.
  • the embodiment according to the Fig. 3 also has a floating bearing axial adjustment 22, but the fixed-bearing axial adjustment 19 and the floating bearing axial adjustment 22 are symbolized by guides 23 and 24 and also the fixed-radial adjustment 13 and the floating bearing radial adjustment 16 by only one adjusting screw 14 and 17 are symbolized.
  • the movable bearing housing 11 for the agitator 6 on both sides each have a shaft passage 25 in which a labyrinth seal 26 is seated to seal the floating bearing housing 11 relative to the agitator shaft 6.
  • the bearing housing 9 has for the agitator shaft 6 on its the floating bearing 10 side facing a shaft bushing 27, in which a labyrinth seal 28 on the same shaft diameter of the agitator shaft 6 as the adjacent labyrinth seal 26 sits in the floating bearing housing 11 to the fixed bearing housing 9 relative to the agitator shaft 6 seal.
  • the fixed bearing housing 9 also has on its other side, i. the side facing the electric motor 12, a shaft bushing 27, in which a further labyrinth seal 28 is arranged to seal the bearing housing 9 relative to the agitator shaft 6.
  • the floating bearing 10 contains a clamping sleeve 30 for supporting the agitator shaft 6, ie a clamping sleeve bearing and that with an adjustable role play. Furthermore, the bearing 8 bearing rollers 31 and associated with them bearing shells 32 which are connected via fixed rings 33 with the bearing housing 9 and in the direction of motor shaft end of the agitator shaft 6 of a shaft nut 34 which presses on an intermediate sleeve 35, with the agitator shaft 6 are braced.
  • the bearing rollers 31 of the fixed bearing 8 sit on an inner ring 36 whose bore is conically shaped and tapers in the direction of the floating bearing 10.
  • the grinding container 2 for storage 7 has a passage 37 which contains a gland packing 38 for sealing between the grinding container 2 and the stirring shaft 6.
  • the stirring shaft 6 preferably carries a plurality of grinding disks 39 (of which only one grinding disk is shown by way of example), which have a plurality of openings 40 and are circular, oval or trapezoidal or of other suitable shape.
  • a separator 5 upstream of the outlet 5 is provided, which may include a screen 42 and at least one cage 43 upstream of the outlet 4 for separating grinding aid bodies (not shown) from ground product (not shown), the cage 43 being connected to the Agitator shaft 6 is connected so that it can rotate with her, and serves to prevent clogging of the outlet / sieve 42 and leakage of Mahltosêtn.

Landscapes

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

Claims (19)

  1. Broyeur agitateur (R) avec un récipient de broyage (2) entourant un espace de broyage (3) relié à une entrée (4) et à une sortie (5) pour le produit à broyer, et un arbre agitateur (6) monté flottant à l'extérieur du récipient de broyage (2), dans lequel le support (7) de l'arbre agitateur (6) contient un palier fixe (8) recevant une force axialement et radialement dans un logement de palier fixe (9) et un palier libre (10) recevant une force radialement dans un logement de palier libre (11), caractérisé en ce que le palier libre (10) est monté devant le palier fixe (8) vu depuis le récipient de broyage (2) et le palier fixe (8) est réglable axialement et/ou radialement, le palier fixe (8) et le palier libre (10) présentant des logements séparés de la même taille et avec les mêmes dimensions.
  2. Broyeur agitateur (R) selon la revendication 1,
    caractérisé en ce
    que le palier libre (10) est réglable radialement.
  3. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que le palier fixe (8) comprend un manchon de démontage (36) pour le montage de l'arbre agitateur (6).
  4. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que le palier libre (10) comprend un manchon de serrage (30) pour le montage de l'arbre agitateur (6), en particulier avec un jeu de galets réglable.
  5. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que le logement de palier libre (11) présente un passage d'arbre (25) de chaque côté pour l'arbre agitateur (6), dans lequel est installé au moins un joint labyrinthe (26) pour assurer l'étanchéité du logement de palier libre (11) par rapport à l'arbre agitateur (6).
  6. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que le logement de palier fixe (9) présente un passage d'arbre (27) pour l'arbre agitateur (6) sur son côté tourné vers le palier libre (10), dans lequel est installé au moins un joint labyrinthe (28) pour assurer l'étanchéité du logement de palier fixe (9) par rapport à l'arbre agitateur (6).
  7. Broyeur agitateur (R) selon les revendications 6 et 7,
    caractérisé en ce
    que le joint labyrinthe (28) dans le logement de palier fixe (9) est installé sur le même diamètre d'arbre de l'arbre agitateur (6) que le joint labyrinthe (26) voisin dans le logement de palier libre (11).
  8. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que le palier fixe (8) comprend des rouleaux de support (31) et des coquilles de palier (32) attribuées à ceux-ci, lesquelles sont reliées au logement de palier fixe (9) par des anneaux fixes (33) et sont serrées avec l'arbre agitateur (6) dans la direction de l'extrémité d'arbre de l'arbre agitateur (6) par un écrou d'arbre (34) appuyant sur un manchon intermédiaire (35).
  9. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que le palier fixe (8) comprend un anneau intérieur (36) installé sur un manchon de démontage (36) formé de façon conique et s'affinant en direction du palier libre (10).
  10. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que dans la direction du support (7), le récipient de broyage (2) présente un passage (37) pour l'arbre agitateur (6), lequel comprend un presse-étoupe (38) ou un joint à lèvre ou une garniture d'étanchéité à anneau glissant pour assurer l'étanchéité entre le récipient de broyage (2) et l'arbre agitateur (6).
  11. Broyeur agitateur (R) selon la revendication 11,
    caractérisé en ce
    que l'arbre agitateur (6) est réglable axialement et radialement pour l'orientation vers le presse-étoupe (38) et positionné fixement pendant le fonctionnement.
  12. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que l'arbre agitateur (6) porte une pluralité d'éléments de broyage (39) à l'intérieur du récipient de broyage (2).
  13. Broyeur agitateur (R) selon la revendication 13,
    caractérisé en ce
    que les disques de broyage (39) présentent plusieurs percées (40), en particulier circulaires, ovales ou trapézoïdales.
  14. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    qu'il est prévu un dispositif de séparation (41) installé en amont de la sortie (5).
  15. Broyeur agitateur (R) selon la revendication 15,
    caractérisé en ce
    que le dispositif de séparation (41) comprend une cage rotative (43).
  16. Broyeur agitateur (R) selon la revendication 15 ou 16,
    caractérisé en ce
    que le dispositif de réparation (41) comprend un tamis (42) supplémentaire permettant de séparer des corps de broyage auxiliaires du produit broyé.
  17. Broyeur agitateur (R) selon la revendication 17,
    caractérisé en ce
    que le cage (43) est reliée à l'arbre agitateur (6) afin de pouvoir tourner conjointement avec celui-ci.
  18. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    que le broyeur agitateur (R) est un broyeur agitateur à billes (1).
  19. Broyeur agitateur (R) selon l'une des revendications précédentes,
    caractérisé en ce
    qu'un moteur électrique (12) est prévu pour l'actionnement de l'arbre agitateur (6), et en ce que le palier fixe (8) et le palier libre (10) sont disposés entre le moteur électrique (12) et le récipient de broyage (2).
EP08784395.9A 2007-08-08 2008-08-06 Broyeur agitateur Active EP2176001B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007037446A DE102007037446B3 (de) 2007-08-08 2007-08-08 Rührwerksmühle
PCT/DE2008/001294 WO2009018819A2 (fr) 2007-08-08 2008-08-06 Broyeur agitateur

Publications (2)

Publication Number Publication Date
EP2176001A2 EP2176001A2 (fr) 2010-04-21
EP2176001B1 true EP2176001B1 (fr) 2017-12-20

Family

ID=40260825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08784395.9A Active EP2176001B1 (fr) 2007-08-08 2008-08-06 Broyeur agitateur

Country Status (5)

Country Link
EP (1) EP2176001B1 (fr)
CN (1) CN102083539B (fr)
DE (1) DE102007037446B3 (fr)
WO (1) WO2009018819A2 (fr)
ZA (1) ZA201000791B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102022540A (zh) * 2009-09-18 2011-04-20 上海冠龙阀门机械有限公司 一种浮动轴杆密封结构
EP4094837A4 (fr) * 2020-01-21 2024-02-28 Eun Sung Lee Dispositif de broyeur à boulets

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682399A (en) * 1969-03-25 1972-08-08 Vyzk Ustav Organ Syntez Apparatus for comminuting and dispersing solid particles
DE2044895C3 (de) * 1970-09-10 1982-08-19 Draiswerke Gmbh, 6800 Mannheim Lagervorrichtung für die Welle einer Rührwerksmühle
GB1273648A (en) * 1970-10-28 1972-05-10 Smidth & Co As F L Bearings of rotary drums
DE4432200C1 (de) * 1994-09-09 1996-02-29 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
AU697677B2 (en) * 1994-12-19 1998-10-15 Erich Netzsch Gmbh & Co Holding Kg Attrition mill II
CN2302848Y (zh) * 1997-05-08 1999-01-06 李宪章 一种高效节能筒型磨机

Also Published As

Publication number Publication date
WO2009018819A9 (fr) 2009-05-28
WO2009018819A3 (fr) 2009-04-09
EP2176001A2 (fr) 2010-04-21
DE102007037446B3 (de) 2009-04-09
ZA201000791B (en) 2010-10-27
CN102083539B (zh) 2012-12-05
CN102083539A (zh) 2011-06-01
WO2009018819A2 (fr) 2009-02-12

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