EP2401083A1 - Broyeur à billes à agitateur - Google Patents

Broyeur à billes à agitateur

Info

Publication number
EP2401083A1
EP2401083A1 EP10706203A EP10706203A EP2401083A1 EP 2401083 A1 EP2401083 A1 EP 2401083A1 EP 10706203 A EP10706203 A EP 10706203A EP 10706203 A EP10706203 A EP 10706203A EP 2401083 A1 EP2401083 A1 EP 2401083A1
Authority
EP
European Patent Office
Prior art keywords
ball mill
mill according
agitator ball
grinding
agitator
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
Application number
EP10706203A
Other languages
German (de)
English (en)
Other versions
EP2401083B1 (fr
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/fr
Application granted granted Critical
Publication of EP2401083B1 publication Critical patent/EP2401083B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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.
  • the invention also relates to a method for preventing the addition of a sieve located upstream of the grinding stock outlet of the stirred ball mill, characterized in that the mass flow of ground material and grinding bodies flowing from the ground stock inlet to the grinding stock diverts in the region of the sieve and in the opposite direction to the outside surface of the sieve is guided along.
  • the invention is therefore based on the object to prevent the clogging of the screen in a different and more effective manner.
  • this is accomplished by having the most downstream, i.
  • the accelerator closest to the regrind exit is axially extended and extends downstream along the axial length of the sieve.
  • the mass flow of grinding stock and grinding media flowing from the grinding stock inlet to the grinding stock outlet is deflected in the area of the wire and guided along the outer surface of the wire in the direction of flow of the opposite direction.
  • the accelerators are designed as paddle wheels. Furthermore, the blades of the most downstream impeller extend over the entire axial length of the screen, but at least over more than half of the same.
  • a screen which surrounds the screen in an annular manner is arranged in the outlet-side end wall.
  • the deflection channel has to Reduction of dead spaces preferably a shape similar to a toroid halved perpendicular to its axis.
  • the sieve is widened conically in the direction of the outlet-side end wall.
  • FIG. 1 shows an agitator ball mill according to the invention in an axial plane.
  • FIG. 2 shows a section perpendicular to the axis in the plane A-A of the agitator ball mill according to FIG. 1
  • FIG. 3 shows an alternative embodiment of an agitator ball mill according to the invention.
  • FIG. 4 shows a section perpendicular to the axis in the plane A-A of the agitator ball mill according to FIG. 3
  • 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 design features.
  • This millbase stream is marked with the black arrows.
  • the agitating ball mill 1 shown in axial section in FIG. 1 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 bound a grinding chamber 5.
  • Stirrer Coaxially with the housing axis in the grinding chamber Stirrer arranged, which consists of a rotatably mounted in the inlet-side end wall agitator 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 from the grinding chamber and 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 larger at an angle to the axis led larger is at least twice the distances of the lateral annular discs from the respective middle discs.
  • vanes 19 also extend between these two panes.
  • the shape of the vanes can be seen from FIG. 2, which shows a section along the line AA in FIG.
  • 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 arranged coaxially with the agitator shaft, which is connected to the grinding chamber via an annular gap 22, wherein a sieve 23 is located between the grinding chamber and the entrance to the gap Grinding media and coarse Mahlgutpumblen prevented to the outlet.
  • the outlet end wall is also with a the
  • This deflection channel has an arcuate cross-section and consists for example 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. Due to the shape and the arrangement of the Umlenkkanals dead spaces are avoided and optimized the Mahlgut- MahlSystem.
  • 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 Mahlgut- MahlSystemgemisch between the paddle wheel and the side wall substantially in the axial direction to the outlet-side end wall, there around the blades and between the screen 23 and the paddle wheel in reverse axial direction flows back. From this reversely directed stream, a portion denoted by the arrow 27 is accelerated outwards through the screen, while the other portion indicated by the arrow 28 first runs along the screen and prevents material from settling on the outer surface of the screen can, which in time would clog up the sieve. This portion 28 is further thrown upwards also by the wings to the outside.
  • Fig. 3 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. This shape ensures that the stream which causes the sieve cleaning can be guided in a more defined manner.
  • the shape of the Umlenkkanals can be designed differently, as long as the deflection of the mixture flow takes place.
  • the number of wings, 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)

Abstract

L'invention concerne un broyeur à billes à agitateur (1) comprenant une chambre de broyage (5) et un agitateur qui comprend un arbre agitateur (6) commandé et monté de façon rotative et des accélérateurs (7, 8, 9) disposés sur cet arbre. L'invention se caractérise en ce que l'accélérateur (9) disposé le plus loin en aval, c.-à-d. situé le plus près de la sortie (21) de la matière broyée est allongé axialement et s'étend le long de la longueur axiale du tamis (23).
EP10706203.6A 2009-02-24 2010-02-24 Broyeur à billes à agitateur Active EP2401083B1 (fr)

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 (fr) 2009-02-24 2010-02-24 Broyeur à billes à agitateur

Publications (2)

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

Family

ID=40784245

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10706203.6A Active EP2401083B1 (fr) 2009-02-24 2010-02-24 Broyeur à billes à agitateur

Country Status (11)

Country Link
US (1) US8814071B2 (fr)
EP (1) EP2401083B1 (fr)
JP (2) JP5793087B2 (fr)
KR (3) KR20160140988A (fr)
CN (1) CN102333597B (fr)
CH (1) CH700446A1 (fr)
DK (1) DK2401083T3 (fr)
ES (1) ES2734520T3 (fr)
MY (1) MY161529A (fr)
PL (1) PL2401083T3 (fr)
WO (1) WO2010112274A1 (fr)

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CH700446A1 (de) * 2009-02-24 2010-08-31 Bachofen Willy A Ag Rührwerkskugelmühle.
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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
CN103433100B (zh) * 2013-04-27 2016-11-09 占天义 一种研磨分散轮
CN103418460B (zh) * 2013-04-27 2016-01-13 占天义 一种研磨装置
AU2014270495B2 (en) 2013-05-21 2019-02-21 Flsmidth A/S Methods and apparatus for the continuous monitoring of wear in grinding circuits
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 (fr) 2014-02-07 2015-08-12 Willy A. Bachofen AG Broyeur à billes à agitateur
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
ES2713001T3 (es) 2016-10-18 2019-05-17 Bachofen Willy A Ag Molino agitador de bolas
PL3311921T3 (pl) * 2016-10-18 2019-03-29 Willy A. Bachofen Ag Młyn kulowy z mieszadłem
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***
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 (fr) 2018-07-20 2020-01-23 Total Raffinage Chimie Procédé par voie humide de récupération d'une huile produite par des microorganismes
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***
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***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
US20220410517A1 (en) * 2021-06-24 2022-12-29 Fuerst Group, 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

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Also Published As

Publication number Publication date
US20110303774A1 (en) 2011-12-15
KR20190051091A (ko) 2019-05-14
CN102333597A (zh) 2012-01-25
US8814071B2 (en) 2014-08-26
JP2012518525A (ja) 2012-08-16
MY161529A (en) 2017-04-28
KR102154690B1 (ko) 2020-09-11
EP2401083B1 (fr) 2019-04-10
JP2015166086A (ja) 2015-09-24
PL2401083T3 (pl) 2019-12-31
JP5793087B2 (ja) 2015-10-14
KR20160140988A (ko) 2016-12-07
CN102333597B (zh) 2014-06-25
DK2401083T3 (da) 2019-07-15
KR20110131229A (ko) 2011-12-06
WO2010112274A1 (fr) 2010-10-07
CH700446A1 (de) 2010-08-31
ES2734520T3 (es) 2019-12-10

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