EP2401083B1 - Rührwerkskugelmühle - Google Patents

Rührwerkskugelmühle Download PDF

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Publication number
EP2401083B1
EP2401083B1 EP10706203.6A EP10706203A EP2401083B1 EP 2401083 B1 EP2401083 B1 EP 2401083B1 EP 10706203 A EP10706203 A EP 10706203A EP 2401083 B1 EP2401083 B1 EP 2401083B1
Authority
EP
European Patent Office
Prior art keywords
agitator
ball mill
outlet
screen
end wall
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
EP10706203.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2401083A1 (de
Inventor
Erich Jeker
Frank Ronald Lang
Marc Weider
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.)
Willy A Bachofen AG
Original Assignee
Willy A Bachofen AG
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 Willy A Bachofen AG filed Critical Willy A Bachofen AG
Priority to PL10706203T priority Critical patent/PL2401083T3/pl
Publication of EP2401083A1 publication Critical patent/EP2401083A1/de
Application granted granted Critical
Publication of EP2401083B1 publication Critical patent/EP2401083B1/de
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
    • B02C17/161—Arrangements for separating milling media and ground material
    • 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
    • B02C17/163—Stirring means

Definitions

  • the invention relates to a stirred ball mill with a grinding chamber which is delimited by a side wall and one inlet and one outlet end wall, arranged in the grinding chamber agitator with a rotatably mounted and driven agitator shaft and arranged on her accelerators, arranged near the inlet side end wall Inlet for grinding stock and grinding media, a Mahlgutauslass arranged in the outlet-side end wall, which is separated by a sieve of the grinding chamber.
  • This device consists essentially in making the distance between the last disc of the agitator and the separator so small that the mixture of grinding stock and grinding media is accelerated more in this space than in the rest of the grinding chamber and thus the "pre-classification" separation takes place. So should be achieved that even less or no coarse grinding more go to the sieve.
  • EP-627262 describes a stirred ball mill with accelerators in the form of paddle wheels.
  • the separation device is not in a sieve, but in an annular gap, so that this document is not about the problem of adding the sieve.
  • the invention is therefore based on the object to prevent the clogging of the screen in a different and more effective manner.
  • upstream and downstream are used with respect to the direction of the millbase flow through the mill, i. H. from the grinding stock inlet down to the grinding stock outlet, also used for constructional features.
  • This millbase stream is marked with the black arrows.
  • the agitator ball mill 1 shown in axial section has a housing of a cylindrical side wall 2, an inlet-side planar end wall 3 and an outlet-side planar end wall 4.
  • the side wall and the end walls define a grinding chamber 5.
  • an agitator is arranged, consisting of a in the inlet-side end wall rotatably mounted stirrer shaft. 6 and there are three accelerators in the same distance from each other in the form of paddle wheels 7, 8, 9.
  • the inlet-side paddle wheel 7 and the central paddle wheel 8 are identical and consist of a fixedly connected to the agitator shaft 6 middle disc 10 with attached near the agitator shaft axis-parallel holes 11 and both sides thereof arranged annular discs 12, wherein between these discs a number of the same Angular distances arranged wings 13 extends.
  • the outer disks 12 have an opening 14 extending annularly around the agitator shaft 6.
  • the paddle wheels can be constructed differently, so for example, each consist of two parallel discs and arranged therebetween blades.
  • the holes 11 may also be performed at an angle to the axis. As a result, a compression of the grinding media is counteracted.
  • the holes may also be slit-shaped.
  • the outlet side, or furthest downstream arranged impeller 9 also has a connected to the agitator shaft 6, with axis-parallel or at an angle to the axis guided bores 16 'provided central disc 15 which is arranged near the outlet end of the agitator shaft.
  • an annular disk 16 is arranged at a distance and is connected to the middle disk 15 by a number of blades 17.
  • an annular disc 18 is also arranged, but at a greater distance from the central disc in the vicinity of the outlet-side end wall. This at an angle to the axis out larger distance is at least twice the distances of the lateral annular discs from the respective middle discs.
  • a number of wings 19 are off Fig. 2 to see who made a cut along the line AA in Fig. 1 represents.
  • the vanes are helically shaped with respect to the stirrer shaft axis, ie curved and angularly offset with respect to the radial direction.
  • an inlet channel 20 is arranged, which opens in the vicinity of the agitator shaft 6 in the grinding chamber.
  • an outlet channel 21 is coaxially arranged with the agitator shaft, which is connected via an annular gap 22 with the grinding chamber, wherein between the grinding chamber and the entrance to the gap, a sieve 23, which is the passage of grinding media and coarse regrind particles to the outlet prevented.
  • the outlet-side end wall is also provided with a Umlenkkanal 24 surrounding the screen.
  • This deflection channel has an arcuate cross section and consists in an approximately toroidal annular recess in the end wall.
  • the deepest portion of the Umlenkkanals is approximately opposite the center of the wings 19.
  • the radially outer edge of the Umlenkkanals corresponds to the outer circumference of the grinding chamber, so that there is a streamlined transition. The shape and the arrangement of the Umlenkkanals dead spaces are avoided and the Mahlgut-MahlSystem optimized.
  • Fig. 1 are, as already mentioned, in addition to the structural parts of the agitator ball mill, the mass flows shown.
  • Black arrows 25 indicate the product mass flow, ie the material to be ground without grinding media, while the outline arrows 26 represent the cycles of the mixture of grinding stock and grinding media taking place in the grinding chamber. Accordingly, the known cycles take place in the field of acting as grinding elements paddle wheels, in which the ground material is crushed by the action of the grinding media.
  • outlet-side paddle wheel 9 In the region of the most downstream, i. outlet-side paddle wheel 9 also takes place, as shown, a cycle in which the grinding material-MahlSystemgemisch between the impeller and the side wall substantially in the axial direction to the outlet-side end wall, there around the blades around and between the screen 23 and the impeller in reverse axial Direction flows back. From this reversely directed flow, a portion indicated by the arrow 27 is accelerated outwardly by the blades, while the other portion indicated by the arrow 28 first passes along the screen and prevents material from settling on the outer surface of the screen the time would clog the sieve. This portion 28 is further thrown upwards also by the wings to the outside.
  • Fig. 3 embodiment shown is substantially the same structure as the agitator ball mill 1 described above with the difference that the screen 23 is conical and narrows towards the grinding chamber. Through this shape it is achieved that the current causing the screen cleaning can be performed even more defined.
  • paddle wheels While in the embodiments shown and described only a total of three paddle wheels are arranged on the agitator shaft, it can of course also be several in other embodiments.
  • the number of blades with which the paddle wheels are equipped can vary within wide limits and is preferably between five and twenty.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP10706203.6A 2009-02-24 2010-02-24 Rührwerkskugelmühle Active EP2401083B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10706203T PL2401083T3 (pl) 2009-02-24 2010-02-24 Młyn kulowy z mieszadłem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00273/09A CH700446A1 (de) 2009-02-24 2009-02-24 Rührwerkskugelmühle.
PCT/EP2010/052337 WO2010112274A1 (de) 2009-02-24 2010-02-24 Rührwerkskugelmühle

Publications (2)

Publication Number Publication Date
EP2401083A1 EP2401083A1 (de) 2012-01-04
EP2401083B1 true EP2401083B1 (de) 2019-04-10

Family

ID=40784245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10706203.6A Active EP2401083B1 (de) 2009-02-24 2010-02-24 Rührwerkskugelmühle

Country Status (11)

Country Link
US (1) US8814071B2 (da)
EP (1) EP2401083B1 (da)
JP (2) JP5793087B2 (da)
KR (3) KR20110131229A (da)
CN (1) CN102333597B (da)
CH (1) CH700446A1 (da)
DK (1) DK2401083T3 (da)
ES (1) ES2734520T3 (da)
MY (1) MY161529A (da)
PL (1) PL2401083T3 (da)
WO (1) WO2010112274A1 (da)

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CH700446A1 (de) * 2009-02-24 2010-08-31 Bachofen Willy A Ag Rührwerkskugelmühle.
DE102010049827A1 (de) * 2010-10-27 2012-05-03 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle
CN103170395B (zh) * 2011-12-24 2015-01-07 谢小飞 一种凸销涡轮介质搅拌磨
DE102012013279A1 (de) * 2012-07-05 2014-01-09 Roland Nied Verfahren zum Betrieb einer Rührwerkskugelmühle sowie Rührwerkskugelmühle dafür
JP6011155B2 (ja) * 2012-08-24 2016-10-19 住友大阪セメント株式会社 循環型メディア撹拌ミル
CN103418460B (zh) * 2013-04-27 2016-01-13 占天义 一种研磨装置
CN103433100B (zh) * 2013-04-27 2016-11-09 占天义 一种研磨分散轮
CN105592927B (zh) 2013-05-21 2018-04-27 Fl史密斯公司 用于持续监测研磨回路中的磨损的方法和装置
DE102013111762A1 (de) * 2013-07-08 2015-01-08 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle mit Axialkanälen
CN103657799B (zh) * 2013-12-19 2016-06-15 深圳市博亿化工机械有限公司 搅拌式研磨分散器及研磨装置
DE102013021756A1 (de) * 2013-12-20 2015-06-25 Netzsch Trockenmahltechnik Gmbh Mahlkörpermühle und Betriebsverfahren dafür
CN103657802B (zh) * 2013-12-31 2016-08-17 深圳市博亿化工机械有限公司 搅拌式研磨装置
EP2905080A1 (de) 2014-02-07 2015-08-12 Willy A. Bachofen AG Rührwerkskugelmühle
CN104028343B (zh) * 2014-06-11 2020-11-17 博亿(深圳)工业科技有限公司 湿法微细粉碎与分级装置
JP6072171B1 (ja) * 2015-08-24 2017-02-01 アシザワ・ファインテック株式会社 軸封を使用しない連続式のメディア撹拌型粉砕機
DK3311921T3 (da) * 2016-10-18 2019-01-14 Bachofen Willy A Ag Omrøringskuglemølle
EP3311922B1 (de) 2016-10-18 2018-12-05 Willy A. Bachofen AG Rührwerkskugelmühle
CN107230770B (zh) * 2017-07-12 2023-06-02 湖南艾威尔新能源科技有限公司 锂电池正极材料生产系统
CN108212362A (zh) * 2018-03-15 2018-06-29 肇庆市格朗自动化科技有限公司 一种研磨分离装置及砂磨机
CN108435341B (zh) * 2018-04-26 2023-11-14 苏州世名科技股份有限公司 用于制备颗粒分散体的研磨设备
WO2020016363A1 (en) 2018-07-20 2020-01-23 Total Raffinage Chimie Wet process for recovering oil produced by microorganism
DE102018123096B4 (de) * 2018-09-20 2022-01-27 Netzsch Feinmahltechnik Gmbh Rührwerkskugelmühle und Verfahren zum Betreiben einer Rührwerkskugelmühle
DE102019123138A1 (de) * 2019-08-29 2021-03-04 Netzsch-Feinmahltechnik Gmbh Rührwelle für eine Rührwerkskugelmühle
CN112024060A (zh) * 2020-09-18 2020-12-04 广州京驰精工机械设备有限公司 一种大流量动态防堵分离系统
CN112221403B (zh) * 2020-09-30 2022-04-15 湖南工业职业技术学院 一种室内装饰材料生产用混合设备
CN112827586B (zh) * 2020-12-31 2022-11-18 深圳市科力纳米工程设备有限公司 一种分体式涡轮棒销研磨轮
CN113289731B (zh) * 2021-05-20 2023-07-18 博亿(深圳)工业科技有限公司 一种多种分散速度的研磨系统及方法
CN113289733B (zh) * 2021-05-20 2023-08-15 博亿(深圳)工业科技有限公司 一种能输出多种分散速度的研磨分散装置及分散方法
US12070920B2 (en) * 2021-06-24 2024-08-27 Keen, Inc. Article of footwear with coffee grinds
CN113953026B (zh) * 2021-10-18 2023-03-21 天津水泥工业设计研究院有限公司 一种三轴干法搅拌磨机
CN114768957B (zh) * 2022-03-26 2023-11-17 陕西正元秦电环保产业有限公司 一种灰磨机
CN115945269B (zh) * 2022-08-05 2025-11-04 南京利卡维智能科技有限公司 一种多轴研磨机防死料多点式循环出料系统
CN120679635B (zh) * 2025-08-22 2026-04-28 广东鸿凯智能科技有限公司 一种具有回收功能的立式双动力砂磨机

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Also Published As

Publication number Publication date
CN102333597B (zh) 2014-06-25
DK2401083T3 (da) 2019-07-15
EP2401083A1 (de) 2012-01-04
ES2734520T3 (es) 2019-12-10
KR20110131229A (ko) 2011-12-06
KR20190051091A (ko) 2019-05-14
KR102154690B1 (ko) 2020-09-11
JP2012518525A (ja) 2012-08-16
JP5793087B2 (ja) 2015-10-14
JP2015166086A (ja) 2015-09-24
WO2010112274A1 (de) 2010-10-07
US8814071B2 (en) 2014-08-26
PL2401083T3 (pl) 2019-12-31
US20110303774A1 (en) 2011-12-15
CN102333597A (zh) 2012-01-25
CH700446A1 (de) 2010-08-31
MY161529A (en) 2017-04-28
KR20160140988A (ko) 2016-12-07

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