EP1468739B1 - Broyeur agitateur à billes - Google Patents

Broyeur agitateur à billes Download PDF

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Publication number
EP1468739B1
EP1468739B1 EP04405182A EP04405182A EP1468739B1 EP 1468739 B1 EP1468739 B1 EP 1468739B1 EP 04405182 A EP04405182 A EP 04405182A EP 04405182 A EP04405182 A EP 04405182A EP 1468739 B1 EP1468739 B1 EP 1468739B1
Authority
EP
European Patent Office
Prior art keywords
grinding
ball mill
agitator ball
agitator
separating
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.)
Revoked
Application number
EP04405182A
Other languages
German (de)
English (en)
Other versions
EP1468739A1 (fr
Inventor
Martin Heinzelmann
Stefan Spornberger
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32873502&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1468739(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Willy A Bachofen AG filed Critical Willy A Bachofen AG
Priority to PL04405182T priority Critical patent/PL1468739T3/pl
Publication of EP1468739A1 publication Critical patent/EP1468739A1/fr
Application granted granted Critical
Publication of EP1468739B1 publication Critical patent/EP1468739B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • 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
    • 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

Definitions

  • the invention relates to a stirred ball mill with a separating member having the features specified in the preamble of claim 1.
  • Agitated ball mills are used, for example, for the comminution and dispersion of solids in a liquid phase or for the digestion of microorganisms.
  • the housing of the grinding chamber of a stirred ball mill consists of a longitudinal wall and two arranged at the two ends of the longitudinal wall end walls. It has a good inlet serving for feeding the ground material and a good outlet serving for discharging the material.
  • a rotatable about the chamber axis agitator is also arranged to convey the grinding media located in the mill radially to the stirring shaft and thereby comminute the continuously passed through the grinding chamber Good by impact and shear forces or to disperse.
  • Agitator ball mills which have to solve this problem various constructions, in such a way that the entrained grinding bodies circulation in the mill is made possible with return to the grinding zone.
  • the known solutions are very often insufficient for grinding media D ⁇ 0.1 mm.
  • Clogging of the outlet can lead to a significant increase in pressure and prevent the actual grinding and dispersing process.
  • grinding media also comes out of the mill and the grinding and dispersing process increasingly deteriorates.
  • the millbase is contaminated with grinding media.
  • the centrifugal acceleration of the grinding media depends on the speed of the stirring disks and thus also on the property of the product, which, for example, in the case of shear-sensitive products and thus low rotational speeds may lead to a too low centrifugal acceleration of the grinding bodies or to the exit of the grinding bodies.
  • Vertical agitated ball mills also have the disadvantage of inhomogeneous media distribution in the milling chamber, resulting in poor grinding or dispersing performance.
  • the invention is based on the object to provide a horizontal axis agitator ball mill with a novel separating member which does not have the aforementioned disadvantages and with which a good can be gently and uniformly ground with KleinstmahlMechn having a diameter D ⁇ 0.1 mm, without that they leave the grinding room.
  • FIG. 1 a longitudinal section through a part of a horizontal grinding chamber with a separating member of the inventive type
  • FIG. 2a a cross section through the in the FIG. 1 represented separating element
  • FIG. 2b a section along the line IIb the FIG. 2a
  • FIG. 3 a longitudinal section through a second embodiment of the invention
  • FIG. 4 a plan view of an alternative embodiment of a separating member of the inventive type.
  • the in the FIG. 1 only partly shown and designated as a whole with 50 grinding chamber of a stirred ball mill has a housing 40 with a horizontal axis 60. Der Gezzausehelter 40 ist mit London Genosuse 40sky.
  • the housing 40 has an elongated, substantially cylindrical longitudinal wall 30 and two arranged at both ends of the longitudinal wall 30 end walls 35 and 36, of which the end wall 36 serving for supplying the material to be ground good inlet 37 and the end wall 35 a for discharging the Has good serving good outlet 38.
  • an agitator 1 is arranged, which has a plurality, for example two, along the axis 60 distributed, paddle wheel-like stirring elements 2.
  • the axis 60 coaxial shaft 4 of the agitator 1 is connected with its end wall 36 piercing end to a drive device, not shown in the drawing.
  • separating member 80 In the end wall 35 of the grinding chamber 50 is a coaxial with the axis 60 arranged separating member 80 which is connected to an external drive 18. This external drive 18 causes the separating member 80 in a rotational movement independent of the agitator 1.
  • the grinding stock outlet 38 leads coaxially to the axis 60 from the separating member 80 to the rotary feedthrough 17th
  • a seal 45 is provided in the end wall 35, which ensures that no regrind with grinding media from the annular gap between separating device 80 and end wall 35 penetrates through to the outside. This seal 45 complies with the requirements of the grinding media size ⁇ 0.1mm.
  • the separating member 80 has a seated on the shaft 9 and releasably secured to this circular disc 5 and the end wall 35 facing circular disc 7 with a coaxial with the axis 60 arranged, tubular Gut-outlet 38, which projects into the end wall 35 and in the rotary feedthrough 17 ends.
  • the two mutually parallel discs 5 and 7 of the separating member 80 are at a predetermined distance from each other. This is determined by a plurality of, around the disk center point symmetrically distributed, from the disk edge inwardly leading, in plan view arcuate conveying or wing elements 12. In the preferred embodiment according to the FIGS. 2a, 2b the circular disc 7 sits on the wing elements 12 and is connected via this with the disc 5 releasably or permanently.
  • a ring cage 10 may be further inserted with a screen plate ring 6 located on its outer surface.
  • the ring cage 10 is preferably pressed and sealed with O-rings 11 and can be mounted either with or without screen plate ring 6.
  • the choice of the use of the screen plate ring 6 can be adapted to the respective product properties.
  • a product to be ground or liquid to be dispersed in liquid form is continuously introduced into the interior 3 of the grinding chamber 50 through the inlet 37 and in the direction of arrow 71 and into the grinding stock outlet 38 transported.
  • These may, for example, primarily be products from nanotechnology, but also dye suspension, enamel paints, printing inks, agrochemicals, filler suspension, video tape coating composition, cosmetics, foodstuffs, pharmaceuticals or microorganisms.
  • the grinding media present in the interior 3 of the grinding chamber 50 grind and / or disperse during the operation of the stirred ball mill the product continuously passed through the grinding chamber 50, whereupon the product produced in the grinding chamber leaves the latter - in a continuous liquid flow - through the separating member 80 in the direction of arrow 72 ,
  • the use of small grinding media D ⁇ 0.1 mm is mainly used to break up the agglomerates and aggregates without destroying the primary particles.
  • rotating separator 80 is now designed and dimensioned so that the mixture formed from the grinding media and the ground and / or dispersed Good flows into the space between the two discs 5 and 7, whereupon due to the centrifugal force and the different specific gravity for grinding serving grinding media separated by the conveying elements 12 from the material to be ground and transported back into the interior 3 of the grinding chamber 50.
  • the millbase itself passes through the circular cavity 8 of the separating member 80 to the Gutauslauf 38, where it leaves the grinding chamber 50. Due to the rotation of the separating member 80, the product must overcome a relative pressure against the centrifugal force when flowing through this separating member.
  • This pressure which is between 0.5 and 3bar depending on the operating state, is applied by the feed pump (not shown).
  • the housing of the separating member 80 and also the seal 45 on the drive shaft 9 must be pressure-resistant, for the latter is In most cases, the use of a double mechanical seal is required.
  • the determining operating variables are the peripheral speed of the separating member 80 and the radial flow velocity in the flow channels.
  • the peripheral speed is determined by the speed.
  • the radial flow velocity results from the free cross section and the volume flow of the product through the pump.
  • the in the FIG. 3 shown grinding chamber 51 corresponds substantially to the grinding chamber according to FIG. 1 , That is, the separating element designated here by 82 is located opposite the agitator 22 on a separate drive shaft and the grinding stock outlet 39 leads coaxially to the axis 61 from the separating member 82 to the rotary feedthrough 17.
  • the drive 28 is arranged parallel to the axis 61 in this case and puts the separating shaft 83 bearing shaft via a sub / translation in an independent of the agitator 22 rotational movement.
  • a Siebabstreifer 65 is also provided in this variant, which serves to strip off at best on the sieve 6 fixed grinding media, so that no adverse pressure increase takes place and all grinding media can be returned by the rotational movement of the separating member 82 of the grinding chamber.
  • a vane-wheel-like separating element 85 which is shown in the view, differs from the separating elements 80 and 82 described above in that, between the arcuate vane elements 12, additionally straight or slightly curved conveying elements 86 are provided, which extend inwards from the edge of the disc. As a result, a secondary flow forms inside.
  • the separating members 80 and 82 are optionally provided with or without straight conveying elements 86, the conveying elements 12 and 86 either to the Slices 5 or 7 be attached and it can be equipped with or without screen plate ring 6, the separating elements.
  • the sizes of the separating elements are dependent on the peripheral speeds to be selected and can vary greatly from case to case.
  • stirring elements described above can numerically arbitrarily combined with each other and / or with other known stirrers and it may be additionally formed with pressure relief valves or the like, the grinding chamber to compensate for any pressure fluctuations, in particular pressure increases.
  • the longitudinal wall of the grinding chamber may be additionally enveloped by a cylindrical shell, which together with it defines a circular cross-section, a gap in the cooling or heating of the material present in the interior of a cooling or heating fluid can be introduced.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Powder Metallurgy (AREA)

Claims (7)

  1. Broyeur agitateur à billes qui travaille horizontalement de manière continue, pour le broyage fin et le broyage très fin d'une matière, avec une chambre de broyage (50, 51) cylindrique ou conique, servant à la réception des boulets de broyage, une entrée pour la matière (37) disposée à l'extrémité de la chambre de broyage (50, 51) et débouchant dans la chambre intérieure (3) de la chambre de broyage (50, 51), une sortie pour la matière, disposée à l'autre extrémité de la chambre de broyage et sortant de la chambre intérieure (3), ainsi qu'un agitateur comprenant plusieurs organes agitateurs (2) et disposé coaxialement par rapport à l'axe de la chambre (60) et un système de séparation disposé avant la sortie de la matière qui est commandé séparément, composé d'un organe de séparation qui comprend deux disques circulaires (5, 7) disposés coaxialement par rapport à l'axe de la chambre (61), entre lesquels sont disposés plusieurs éléments de transport resp. éléments à ailettes distribués symétriquement autour des centres des disques, caractérisé en ce que l'organe de séparation (80, 82) est logé sur un arbre creux (9) qui est indépendant de l'agitateur (1, 22), où la sortie de la matière (38, 39) est disposée dans la cavité de cet arbre creux et en ce que les éléments de transport resp. les éléments à ailettes (12, 86) s'étendent depuis le bord du disque jusqu'à près de la sortie de la matière et lors du fonctionnement du dispositif de séparation produisent une contrepression sur le mélange matière - boulets de broyage, de telle façon que les boulets de broyage soient séparés du produit et transportés en arrière dans la chambre intérieure (3) en raison de la force centrifuge et la densité spécifique différente.
  2. Broyeur agitateur à billes selon la revendication 1, caractérisé en ce que les éléments de transport resp. les éléments à ailettes sont arqués.
  3. Broyeur agitateur à billes selon la revendication 2, caractérisé en ce qu'en plus des éléments de transport resp. les éléments à ailettes (12) sont également prévus des éléments de transport resp. des éléments à ailettes (86) droits ou presque droits, qui s'étendent du bord du disque vers l'intérieur.
  4. Broyeur agitateur à billes selon la revendication 1, caractérisé en ce que les deux disques circulaires (5, 7) sont reliés ensemble de manière amovible ou de manière inamovible.
  5. Broyeur agitateur à billes selon les revendications 1 ou 2, caractérisé en ce qu'entre les deux disques circulaires (5, 7) est prévue une cage annulaire (10) qui tourne simultanément et qui forme une cavité (8) circulaire.
  6. Broyeur agitateur à billes selon la revendication 3, caractérisé en ce qu'un anneau de tôle de criblage (6) est inséré dans la cage annulaire (10).
  7. Broyeur agitateur à billes selon la revendication 6, caractérisé en ce qu'un racleur de crible (65) est prévu sur la paroi finale (35) qui sert à enlever resp. à tenir en mouvement des boulets de broyage et de la matière broyée qui seraient éventuellement bloqués sur le crible.
EP04405182A 2003-04-15 2004-03-24 Broyeur agitateur à billes Revoked EP1468739B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04405182T PL1468739T3 (pl) 2003-04-15 2004-03-24 Młyn kulowy z mieszadłem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6782003 2003-04-15
CH6782003 2003-04-15

Publications (2)

Publication Number Publication Date
EP1468739A1 EP1468739A1 (fr) 2004-10-20
EP1468739B1 true EP1468739B1 (fr) 2008-03-19

Family

ID=32873502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405182A Revoked EP1468739B1 (fr) 2003-04-15 2004-03-24 Broyeur agitateur à billes

Country Status (8)

Country Link
US (1) US7014134B2 (fr)
EP (1) EP1468739B1 (fr)
JP (1) JP4205620B2 (fr)
AT (1) ATE389456T1 (fr)
DE (1) DE502004006541D1 (fr)
DK (1) DK1468739T3 (fr)
ES (1) ES2304157T3 (fr)
PL (1) PL1468739T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI503173B (zh) * 2009-04-22 2015-10-11 Ashizawa Finetech Ltd Medium mixing grinder
DE102015105103A1 (de) * 2015-04-02 2016-10-06 Netzsch-Feinmahltechnik Gmbh Verschlusssystem für den Mahlbehälter einer Zerkleinerungseinrichtung und Mahlbehälter mit einem derartigen Verschlusssystem und Zerkleinerungseinrichtung mit einem Mahlbehälter
RU2663485C2 (ru) * 2013-07-08 2018-08-06 Неч-Файнмальтехник Гмбх Перемешивающая шаровая мельница с аксиальными каналами
EP2484450B2 (fr) † 2011-02-07 2020-08-19 LIPP Mischtechnik GmbH Broyeur agitateur à billes

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WO2005091064A1 (fr) * 2004-03-22 2005-09-29 Nippon Kayaku Kabushiki Kaisha Materiau d’etancheite pour cristaux liquides et procédé de fabrication dudit materiau
JP4741931B2 (ja) * 2005-05-17 2011-08-10 アシザワ・ファインテック株式会社 循環型メディア撹拌ミル
WO2006131698A2 (fr) * 2005-06-08 2006-12-14 Cheshire Dispersion Company Limited Appareil de broyage
US20070040055A1 (en) * 2005-08-17 2007-02-22 Riendeau Robert D Method and apparatus for pulverizing solid materials
JP4918272B2 (ja) * 2006-04-11 2012-04-18 アシザワ・ファインテック株式会社 循環型メディア撹拌ミル
JP5046546B2 (ja) * 2006-04-24 2012-10-10 日本コークス工業株式会社 メディア攪拌型湿式分散機及び微粒子の分散方法
JP5046557B2 (ja) * 2006-05-22 2012-10-10 日本コークス工業株式会社 メディア攪拌型湿式分散機及び微粒子の分散方法
JP5159102B2 (ja) * 2006-12-14 2013-03-06 アシザワ・ファインテック株式会社 竪型のメディア攪拌ミル
JP5026819B2 (ja) * 2007-03-02 2012-09-19 日本コークス工業株式会社 メディア攪拌型湿式粉砕機及び粉砕処理方法
DE102007043670A1 (de) 2007-09-13 2009-04-02 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle
JP5203776B2 (ja) * 2008-03-31 2013-06-05 日本製紙株式会社 苛性化工程で製造された軽質炭酸カルシウムのスラリーの製造方法及び前記スラリーを含有する塗工液を塗工した紙
JP5261002B2 (ja) * 2008-03-31 2013-08-14 アシザワ・ファインテック株式会社 メディア混合式ミル
US8246831B2 (en) * 2009-02-05 2012-08-21 Mcfarland Martin Allen Digesting and continuously self-cleaning aquarium filter
CH700446A1 (de) * 2009-02-24 2010-08-31 Bachofen Willy A Ag Rührwerkskugelmühle.
DK2272591T3 (da) 2009-07-06 2013-12-16 Bachofen Willy A Ag Kuglemølle med omrører
EP2327480A1 (fr) 2009-11-25 2011-06-01 Willy A. Bachofen AG Broyeur à billes à agitateur
DE102010049827A1 (de) * 2010-10-27 2012-05-03 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle
DE102010053484A1 (de) 2010-12-04 2012-06-06 Netzsch-Feinmahltechnik Gmbh Dynamisches Element für die Trenneinrichtung einer Rührwerkskugelmühle
CN103747877B (zh) * 2011-07-28 2016-02-24 芦泽精美技术株式会社 介质搅拌式粉碎机
CN102553687B (zh) * 2012-01-09 2013-08-28 山东理工大学 球石群动态分布检测系统及方法
DE102012013279A1 (de) * 2012-07-05 2014-01-09 Roland Nied Verfahren zum Betrieb einer Rührwerkskugelmühle sowie Rührwerkskugelmühle dafür
CN102794215B (zh) * 2012-08-21 2016-05-11 向小月 一种多环流研磨系统
CN102814216B (zh) * 2012-08-26 2015-01-21 向小月 双轴研磨系统
CN102921512B (zh) * 2012-11-16 2015-06-03 广西大学 卧式强化多糖高聚物改性搅拌球磨反应器
CN102974432B (zh) * 2012-12-26 2015-12-02 广州派勒机械设备有限公司 一种动态分离出料式研磨机
CN103056011B (zh) * 2013-01-24 2016-05-11 陈波 一种强制双向垂直环流研磨系统
CN103657801B (zh) * 2013-12-19 2016-11-23 占天义 搅拌式研磨分离器及研磨装置
DE102013021756A1 (de) * 2013-12-20 2015-06-25 Netzsch Trockenmahltechnik Gmbh Mahlkörpermühle und Betriebsverfahren dafür
FR3018807B1 (fr) * 2014-03-20 2016-04-15 Herakles Procede d'obtention de charges de cristaux d'hexanitrohexaazaisowurtzitane (cl20) de granulometrie monomodale submicronique, lesdites charges et leur utilisation comme charges d'ensemencement
CN104959196A (zh) * 2015-06-29 2015-10-07 广州派勒机械设备有限公司 具有双重分离系统的超级砂磨机
CN105214790B (zh) * 2015-09-22 2018-06-08 广东派勒智能纳米科技股份有限公司 智能纳米动态离心旋转分离装置
ES2713001T3 (es) * 2016-10-18 2019-05-17 Bachofen Willy A Ag Molino agitador de bolas
EP3311921B1 (fr) * 2016-10-18 2018-09-26 Willy A. Bachofen AG Broyeur à billes à agitateur
DE102017201418B3 (de) * 2017-01-30 2018-06-28 Netzsch-Feinmahltechnik Gmbh Rührwerksmühle
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
FR3081732B1 (fr) * 2018-05-29 2020-09-11 Deasyl Sa Broyeur tridimensionnel, son procede de mise en œuvre et ses utilisations
WO2020016363A1 (fr) 2018-07-20 2020-01-23 Total Raffinage Chimie Procédé par voie humide de récupération d'une huile produite par des microorganismes
CN110328021A (zh) * 2019-07-17 2019-10-15 北矿机电科技有限责任公司 超细磨用搅拌盘及立式搅拌装置及立式超细搅拌磨机
CN111185282B (zh) * 2019-07-26 2023-10-27 湖北迈兆机械有限公司 一种球磨系统
US11691155B2 (en) 2020-09-17 2023-07-04 U.S. Silica Company Methods and apparatus for producing nanometer scale particles utilizing an electrosterically stabilized slurry in a media mill
CN115364976B (zh) * 2022-04-19 2024-03-12 鄂尔多斯应用技术学院 一种超高压陶瓷介质材料生产系统及生产方法

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI503173B (zh) * 2009-04-22 2015-10-11 Ashizawa Finetech Ltd Medium mixing grinder
EP2484450B2 (fr) † 2011-02-07 2020-08-19 LIPP Mischtechnik GmbH Broyeur agitateur à billes
RU2663485C2 (ru) * 2013-07-08 2018-08-06 Неч-Файнмальтехник Гмбх Перемешивающая шаровая мельница с аксиальными каналами
DE102015105103A1 (de) * 2015-04-02 2016-10-06 Netzsch-Feinmahltechnik Gmbh Verschlusssystem für den Mahlbehälter einer Zerkleinerungseinrichtung und Mahlbehälter mit einem derartigen Verschlusssystem und Zerkleinerungseinrichtung mit einem Mahlbehälter

Also Published As

Publication number Publication date
DE502004006541D1 (de) 2008-04-30
EP1468739A1 (fr) 2004-10-20
PL1468739T3 (pl) 2008-10-31
DK1468739T3 (da) 2008-07-21
JP2004314066A (ja) 2004-11-11
ATE389456T1 (de) 2008-04-15
US7014134B2 (en) 2006-03-21
JP4205620B2 (ja) 2009-01-07
US20050224612A1 (en) 2005-10-13
ES2304157T3 (es) 2008-09-16

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