EP2176001A2 - Rührwerksmühle - Google Patents
RührwerksmühleInfo
- Publication number
- EP2176001A2 EP2176001A2 EP08784395A EP08784395A EP2176001A2 EP 2176001 A2 EP2176001 A2 EP 2176001A2 EP 08784395 A EP08784395 A EP 08784395A EP 08784395 A EP08784395 A EP 08784395A EP 2176001 A2 EP2176001 A2 EP 2176001A2
- 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.)
- Granted
Links
- 238000003756 stirring Methods 0.000 claims description 20
- 238000012856 packing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000003716 rejuvenation Effects 0.000 claims 1
- 238000003801 milling Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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.
- Agitator mills and in particular stirred ball mills are known from DE 2044895 A1, which contains a stirring shaft for grinding solids in fluids (eg air or water) surrounding a grinding chamber which is connected to an inlet and an outlet for material to be ground , which is mounted outside of the grinding container on both sides or on one side flying, wherein the storage of the stirring shaft an axial kraftaufikides
- Fixed bearing in a bearing housing and a radial force-absorbing movable bearing in a bearing housing contains. Due to the specific types and types of fixed bearing and floating bearing results in a high construction cost for the entire mill.
- 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 of the Stir shaft includes an axially and radially force-absorbing fixed bearing in a fixed bearing housing and a radial force-absorbing floating bearing in a floating bearing housing, further comprising the fixed bearing and the movable bearing separate housing, which are the same size or the same dimensioned, the movable bearing from the grinding container from before the Fixed bearing sits and the 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 movable bearing housing for the agitator shaft on both sides in each case a shaft bushing, in which sits at least one labyrinth seal to seal the floating bearing housing relative to the agitator shaft.
- the bearing housing for the agitator shaft has a shaft bushing at least on its side facing the movable bearing, in which at least one labyrinth seal is seated in order to support the bearing housing. seal housing 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 shows in a schematic sectional view an embodiment of an agitator ball mill
- Fig. 2 illustrates in a schematic sectional view of an embodiment of the storage of the stirring shaft of a stirred ball mill
- Fig. 3 shows a schematic sectional view of an embodiment of the structure of the fixed bearing and the movable bearing of a storage of the stirring shaft of a stirred ball mill illustrated.
- FIG. 1 schematically shows an agitator ball mill 1 as an example of an agitator mill R in general.
- the agitator ball mill 1 contains a grinding container 2, which has a grinding chamber
- Grist container 2 is stored on the fly.
- a storage. 7 with, as Figs. 2 and 3 illustrate with reference to corresponding embodiments, an axially and radially force-absorbing bearing 8 in a fixed bearing housing 9 and a radial force-absorbing floating bearing 10 in a floating bearing housing 11 is provided.
- the latter On the side facing away from the grinding container 2 side of the bearing 7, through which the agitator shaft 6 passes, the latter is connected to the drive via a gear to an electric motor 12.
- the floating bearing 10 is viewed from the grinding container 2 from before the fixed bearing 8.
- FIGS. 2 and 3 an embodiment of the bearing 7 of the agitator shaft 6 of the agitator ball mill 1 is shown in schematic sectional views. Since the two figures and exemplary embodiments have some features in common, these common features will first be explained before then specific features of each individual figure or each specific embodiment will be discussed.
- 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 of FIG. 3 also has a floating bearing axial adjustment 22, but the fixed-bearing axial adjustment 19 and the movable bearing axial adjustment 22 are symbolized by guides 23 and 24, and also the fixed bearing radial adjustment 13 and the movable bearing radial adjustment 16 are symbolized by only one adjusting screw 14 and 17 respectively.
- 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 Festla- gergeophuse 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 6 as the adjacent labyrinth seal 26 is seated in the floating bearing housing 11 to the fixed bearing housing 9 opposite to seal the agitator shaft 6.
- the bearing housing 9 also has on its other side, ie 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 bearing 8 for supporting the agitator shaft 6 includes a withdrawal sleeve 29.
- the floating bearing 10 includes a collet 30 for supporting the agitator shaft 6, i. a Spannhülsenlagerung and with an adjustable role play.
- 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, are braced with the agitator shaft 6.
- 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 for the stirring shaft 6 has a passage 37 which contains a gland packing 38 for sealing between the grinding container 2 and stirring shaft 6. Due to the fixed bearing radial adjustment 13, the floating bearing radial adjustment 16, the idler axial adjustment 22 and the fixed bearing axial adjustment 19, the agitator shaft 6 for alignment with the packing 37 is axially and radially adjustable and firmly positioned during operation.
- 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)
Abstract
Description
Claims
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 (de) | 2007-08-08 | 2008-08-06 | Rührwerksmühle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2176001A2 true EP2176001A2 (de) | 2010-04-21 |
EP2176001B1 EP2176001B1 (de) | 2017-12-20 |
Family
ID=40260825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08784395.9A Active EP2176001B1 (de) | 2007-08-08 | 2008-08-06 | Rührwerksmühle |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2176001B1 (de) |
CN (1) | CN102083539B (de) |
DE (1) | DE102007037446B3 (de) |
WO (1) | WO2009018819A2 (de) |
ZA (1) | ZA201000791B (de) |
Families Citing this family (2)
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 |
WO2021150023A1 (ko) * | 2020-01-21 | 2021-07-29 | 이은성 | 볼밀 장치 |
Family Cites Families (6)
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 |
-
2007
- 2007-08-08 DE DE102007037446A patent/DE102007037446B3/de active Active
-
2008
- 2008-08-06 CN CN200880102442XA patent/CN102083539B/zh active Active
- 2008-08-06 WO PCT/DE2008/001294 patent/WO2009018819A2/de active Application Filing
- 2008-08-06 EP EP08784395.9A patent/EP2176001B1/de active Active
-
2010
- 2010-02-02 ZA ZA201000791A patent/ZA201000791B/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2009018819A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2009018819A2 (de) | 2009-02-12 |
ZA201000791B (en) | 2010-10-27 |
CN102083539B (zh) | 2012-12-05 |
EP2176001B1 (de) | 2017-12-20 |
CN102083539A (zh) | 2011-06-01 |
DE102007037446B3 (de) | 2009-04-09 |
WO2009018819A9 (de) | 2009-05-28 |
WO2009018819A3 (de) | 2009-04-09 |
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