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EP0700724B2 - Procédé et appareil pour le broyage continu autogène d'une matière à traiter fluide - Google Patents
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EP0700724B2 - Procédé et appareil pour le broyage continu autogène d'une matière à traiter fluide - Google Patents

Procédé et appareil pour le broyage continu autogène d'une matière à traiter fluide Download PDF

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Publication number
EP0700724B2
EP0700724B2 EP95113662A EP95113662A EP0700724B2 EP 0700724 B2 EP0700724 B2 EP 0700724B2 EP 95113662 A EP95113662 A EP 95113662A EP 95113662 A EP95113662 A EP 95113662A EP 0700724 B2 EP0700724 B2 EP 0700724B2
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EP
European Patent Office
Prior art keywords
grinding
agitator
grinding chamber
particles
stock
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.)
Expired - Lifetime
Application number
EP95113662A
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German (de)
English (en)
Other versions
EP0700724B1 (fr
EP0700724A1 (fr
Inventor
Norbert Dr.-Ing. Stehr
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.)
Draiswerke GmbH
Original Assignee
Buehler 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
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Application filed by Buehler GmbH filed Critical Buehler GmbH
Publication of EP0700724A1 publication Critical patent/EP0700724A1/fr
Publication of EP0700724B1 publication Critical patent/EP0700724B1/fr
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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

Definitions

  • the invention relates to a method for continuously autogenous grinding of a flowable, insoluble particles of different diameter containing material to be treated according to the preamble of claim 1, and an apparatus for performing the method according to the preamble of claim. 7
  • a grinding aid body restraint device In the area of the grinding material outlet, a grinding aid body restraint device must be provided by means of which the auxiliary grinding bodies can be separated from the material to be treated, so that the latter can emerge without the aid of a grinding aid.
  • EP 0 247 895 A and EP 0 367 403 A each disclose an apparatus and a method for autogenous grinding of hard solids according to the preambles of claims 1 and 7, respectively.
  • An agitating mill is used with a grinding container having a wall and a bottom.
  • a cylindrical sieve is provided as a retaining device.
  • the material to be treated is fed to the grinding chamber from below through the bottom and taken from above through the screen enclosing the grinding chamber. Through this sieve large particles are retained, while material to be treated can emerge with powdered particles. There is a significant risk of clogging of the screen and considerable screen wear.
  • the larger diameter particles sitting in front of the sieve hardly participate in the autogenous grinding process.
  • a vertical agitator mill which has a vertical cylindrical container with a coaxially arranged in this rotary drivable agitator.
  • the agitator mill is filled to a part with their Mahlraumsentenden or limiting Mahlos stressesn.
  • an inlet nozzle for material to be treated and an outlet for treated material to be treated are arranged above this grinding chamber.
  • An outlet opening for Mahlospian is provided in the lower region of the container.
  • the invention has for its object to provide a method and an apparatus of the type described, which allow a continuous autogenous grinding of material to be treated in a particularly simple manner, even at high throughputs without malfunction.
  • FIGS. 1 to 3 are in principle so-called horizontal agitator mills. These have in the usual way a stand 1, which is supported on the bottom 2. At the front 3 of the stand 1, a support arm 4 is attached.
  • stator an optionally variable speed drive motor 5 is housed, which is provided with a V-belt pulley 6, from which via V-belts 7 and another V-belt pulley 8, a drive shaft 9 is rotationally driven.
  • the drive shaft 9 is rotatably supported in the stator 1 by means of several bearings 10.
  • a substantially cylindrical grinding container 12 is supported in corresponding receptacles 11.
  • the grinding container 12 has a cylindrical wall 13 and is at one, the stator 1 facing end by means of a lid 14 and at the opposite end by means of a bottom 15 are sealed. He encloses a grinding room 16.
  • a stirring shaft 18 is arranged in the grinding chamber 16, which passes through the lid 14.
  • the grinding chamber 16 is sealed by means of seals 19 between the cover 14 and the shaft 18.
  • the shaft 18 is cantilevered, so no longer stored in the region of the bottom 15. It is provided over its length in the grinding chamber 16 with stirring tools 20, which in the present case is agitating disks 21.
  • These stirring discs 21 can - as shown in Fig. 1 right - additionally be provided with parallel to the axis 17 extending, arranged in the form of a cage Rrockstäben 22, by means of which the centrifugal forces are increased.
  • an inlet pipe 23 is attached, is supplied through the material to be treated.
  • On the lower side of the wall 13 of the grinding container 12 is a over a substantial part of the length of the grinding container 12 between the receptacles 11 extending emptying flap 24 is attached.
  • the grinding container 12 is provided with an outlet which is configured differently in the various embodiments.
  • an outlet which is configured differently in the various embodiments.
  • a Mahltosterrorism restraint device as is generally customary in stirred mills, is not provided.
  • Mahltosterrorism restraint devices are either sieves in many configurations or so-called separation gap separating devices, as described for example in DE-PS 14 82 391 (corresponding to GB-PS 1 056 257).
  • an outlet pipe 25 is disposed in the bottom 15 coaxial with the axis 17, which is provided with an opening 26 on the front side.
  • This outlet tube 25 extends into the vicinity of the agitator shaft 18, i. up to the vicinity of the end-side stirrer disk 21.
  • a frustoconical, open to the bottom 15 open short pipe section 27 is attached to the bottom 15 leaves a passageway 28 free.
  • the outlet tube 25 and the tube portion 27 overlap each other in the direction of the axis 17th
  • the agitator shaft 18 is adjacent to its free end, namely, between the two last stirring discs 21, provided with outlet openings 29, which open into a discharge channel 30 in the hollow agitator shaft 18.
  • the drainage channel 30 opens in the region of the outside of the grinding container 12 lying end of the agitator shaft 18 from this.
  • the stirring rods 22 mentioned may be in the region of the opening 29.
  • the agitator shaft 18 is provided in the region of its free end and also there between the two last adjacent stirring discs 21 with outlet openings 31 in an open towards the free end of the agitator shaft 18 outflow channel 32 open. This in turn opens into a arranged in the bottom 15 outlet pipe 33, which leaves only a smallest possible gap with its front side opposite the free end of the agitator shaft 18.
  • the embodiment according to FIG. 4 is constructed in the manner of a high-speed drivable mixer. Parts of the embodiments according to FIGS. 1 to 3 are provided with the same reference numerals but with the same reference numerals attached with a double hyphen. From a new description is taken to the extent distance.
  • the agitator shaft 18 is mounted on the one hand in a bearing 10" in the region of the cover 14 "and on the other hand in a bearing 10" in the region of the bottom 15 “, ie it is not flying, but mounted at both ends 18 "are provided by the lid 14" on the one hand and the bottom 15 "on the other hand seals 19"
  • the agitator shaft 18 is provided with stirrers 20, which may also be stirring discs 21 again;
  • the stirring tools 20 may also be designed as classic blade-like mixing tools 39, as also shown in Fig. 4.
  • a reservoir 40 is provided, which is connected via a feed line 41 to the inlet port 23.
  • this feed line 41 is driven by a motor 42 driven pump 43, by means of which the transport of the material to be treated takes place.
  • the drain channel 32 is in turn connected via a return line 44 to the reservoir 40.
  • the described continuously operating devices are used, inter alia, for grinding particularly hard material to be treated; these are, for example, silicates and carbides. But they are also used for grinding of low quality bulk goods, such as calcium carbonate, sand (SiO 2 ), mineral Substances and in particular ores used.
  • the material to be treated is brought into flowable form in water or another suitable liquid and fed to the grinding container 12 or 12 "through the inlet connection 23 and intensively moved by the high-speed rotating stirring tools 20.
  • larger diameter particles enter the respective grinding chamber 16 , 16 "entered.
  • two case groups can be distinguished. In one case, coarse particles are introduced with liquid at the beginning of the grinding process and then constantly yielding fine particles, which are crushed. If the coarse particles are partially rubbed off, they must be refilled. In the other case group, coarse particles and fine particles are introduced from the beginning, the coarse particles being concentrated in the grinding chamber.
  • the coarse particles that is, the larger diameter particles, have a size of 0.1 to 5.0, and usually 1.0 to 2.0 mm.
  • the lower limit of their diameter is 0.1 to 0.3 mm, the usual upper limit at 3.0 to 4.0 mm.
  • the fine particles, ie the particles of smaller diameter of the material to be treated should be smaller by a factor of 0.3 to 0.05 than the larger diameter particles used as grinding aid bodies.
  • the grinding containers 12 and 12 "are completely filled with the material to be treated.
  • the particles of larger diameter contained in the material to be treated are increasingly thrown into the outside area, ie in the direction of the wall 13 or 13" of the grinding container 12, 12 ", ie they are in the grinding chamber 16, 16 "concentrated.
  • the particles of larger diameter participate in the grinding process, and indeed they grind as a Mahlosharm the smaller particles, whereby they themselves are also abraded until the desired particle size distribution, is reached. Since the material to be treated exits the grinding chamber 16, 16 "in the region of the axis 17 or the shaft 18 or 18" through the described outlets 25, 29, 31, 31 ", these larger particles remain at least predominantly in the grinding chamber 16 , 16 ".
  • the agitator speed on the one hand and the throughput of the treated material on the other hand must be optimally adapted to each other.
  • the basic purpose of a control is to achieve a maximum of the power consumption, which in turn is achieved by a high concentration of particles of large diameter in the grinding chamber an increase in the throughput decreases the power consumption, it can be concluded that the proportion of larger diameter particles in the grinding chamber 16 or 16 "has decreased, either by abrasion or by discharge. In this case must be added from particles of larger diameter existing material to be treated. If the power consumption increases again, the problem is solved. If this is not the case, then recognizable larger diameter particles are discharged; In this case, either the throughput of material to be treated must be reduced or, in the presence of a variable-speed drive motor 5, the speed of the agitator shaft 18, 18 "must be increased.
  • the control can be performed in the manner shown in FIG.
  • a speed detection unit 49 is connected, which outputs a signal corresponding to the speed of a control and regulating device 50.
  • the power consumption of the drive motor 5 is recorded by means of a power detection device 51 and given to the control and regulation device 50.
  • a flow rate detection device which outputs a the flow rate per unit time corresponding signal to the rule control device 50.
  • the throughput detection device 52 may be a tachometer, since the speed is a measure of the throughput in pumps operating without slip or with constant slip.
  • the drive motor 5 is associated with a Drehiereverstellvorraum 53, which may be, for example, a frequency converter.
  • the drive motor 42 of the pump 43 is associated with a speed adjustment device 54, which may also be a frequency converter.
  • the speed of the drive shaft 9, the power of the drive motor 5 and the flow rate of the pump 43 are input as inputs 55, 56, 57 in the control and control device 50.
  • a desired value for the power consumption via an input 58 is input to the control and regulating device 50.
  • the speed adjustment device 53 of the drive motor 5 and the Drehtogetherverstellvorides the motor 41 of the pump 43 is driven by the above-mentioned control scheme via outputs 59, 60.
  • the speed of the agitator is changed; in the second case, the flow rate of the pump 43 is changed.

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

Claims (18)

  1. Procédé de broyage autogène continu d' une matière fluide à traiter, qui est mise en forme fluide avec de liquide et contient des particules ayant des diamètres différents;
    selon lequel la matière à traiter est amenée dans une chambre de broyage (16) située dans un récipient de broyage (12, 12", 12"') qui est disposé horizontalement et comporte une paroi (13, 13") et un fond (15, 15"), et y est entraînée en rotation concentriquement à un axe horizontal (17); et
    selon lequel des particules insolubles possédant un diamètre plus important sont centrifugées de façon amplifiée vers la paroi et par conséquent concentrées, d'une manière plus que proportionnelle par rapport à des particules d'un diamètre plus petit, dans la chambre de broyage (16);
    caractérisé
    en ce que la matière à traiter est évacuée de la chambre de broyage (16) qui - au niveau d'une extrémité - est fermée par un couvercle (14, 14") et complètement remplie de matière à traiter, au voisinage de l'axe (17) par une ouverture de sortie, dont la largeur minimale a est nettement supérieure aux particules de diamètre supérieur.
  2. Procédé selon la revendication 1, caractérisé en ce que les particules de plus faibles diamètres sont plus petites que les particules de diamètre supérieur et ce d'un facteur 0,3 à 0,05.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu 'au début d'un processus de broyage, des particules de diamètre supérieures sont envoyées de façon prépondérante à la chambre de broyage (16) et que pendant le processus de broyage suivant, des particules de plus faible diamètre sont envoyées de façon prépondérante à la chambre.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la matière à traiter est amenée - d'une manière rapportée à l'axe (17) - à une extrémité de la chambre de broyage (16) et est évacuée de la chambre de broyage (16) à l'autre extrémité de cette chambre.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la matière à traiter est guidée plusieurs fois à travers la chambre de broyage (16).
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que lors de la sortie de particules minérales ayant une densité supérieure et/ou un diamètre supérieur hors de la chambre de broyage (16), l'amenée de la matière à traiter à la chambre de broyage (16) est réduite et/ou la rotation est amplifiée.
  7. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 6, comportant
    un récipient de broyage (12, 12"), qui est disposé horizontalement et enserre une chambre de broyage (16) au moyen d'une paroi (13, 13") et d'un fond (15, 15");
    une unité d'agitation disposée de manière à pouvoir tourner dans le récipient de broyage (12, 12") en étant concentrique à l'axe (17) de ce récipient;
    des outils d'agitation (20) montés sur l'unité d'agitation et un moteur d'entraînement (5,5") couplé à l'unité d'agitation;
    au moins une tubulure d'amenée (23) pour la matière à traiter, qui débouche dans la chambre de broyage (16)- par rapport à l'axe (17)- à une extrémité de cette chambre; et au moins une sortie (25; 29; 31, 31") pour la matière à traiter, installée à l'autre extrémité de la chambre de broyage (16);
    caractérisé
    en ce que la chambre de broyage (16, 16") est fermée à l'aide d'un couvercle (14, 14"); et
    que la au moins une sortie (25; 29; 31, 31") est disposée au voisinage de l'axe (17) et ne comporte aucun dispositif de retenue de corps auxiliaires de broyage.
  8. Dispositif selon la revendication 7, caractérisé en ce que la sortie est formée par un tube de sortie (25) qui est disposé concentriquement par rapport à un arbre (18), monté flottant, de l'unité d'agitation et est ouvert frontalement en direction de cet arbre.
  9. Dispositif selon la revendication 8, caractérise en ce que le tube de sortie (25) est recouvert au moins en partie, dans la direction de l'axe (17), par un tronçon de tube (27) relié à l'arbre (18) de l'unité d'agitation.
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce qu'un canal de traversée (28) est forme entre un tronçon de tube (27) et un fond voisin (15) du récipient de broyage (12) et/ou entre le tube de sortie (25) et l'arbre (18) de l'unité d'agitation.
  11. Dispositif selon l'une des revendications 7 à 10, caractérisé en ce que la sortie est formée par au moins une ouverture de sortie (29, 31, 31"), qui est formée dans un arbre (18, 18") de l'unité d'agitation et débouche dans un canal d'évacuation (30, 32, 32") qui est situé dans l'arbre (18, 18") de l'unité d'agitation.
  12. Dispositif selon l'une des revendications 7 à 11, caractérisé en ce qu 'au moins un outil d'agitation (20) est prévu au voisinage direct d'une sortie (25; 29; 31, 31").
  13. Dispositif selon les revendications 11 et 12, caractérisé en ce que - d'une manière rapportée à l'axe (17) - respectivement au moins un outil d'agitation (20) est monté sur l'arbre (18, 18") de l'unité d'agitation, des deux côtés d'au moins une ouverture de sortie (29, 31, 31").
  14. Dispositif selon l'une des revendications 7 à 13, caractérisé en ce que les outils d'agitation (20) sont formés par des disques agitateurs (21).
  15. Dispositif selon l'une des revendications 7 à 14, notamment selon la revendication 13, caractérisé en ce que des barreaux d'agitation (22) disposes à la manière d'une cage sont prévues sur les outils d'agitation (20), approximativement parallèlement à l'axe (17).
  16. Dispositif selon la revendication 7, caractérisé en ce que le dispositif d'agitation est agencé à la manière d'une cage en forme de pot comportant des barreaux (46) qui sont parallèles et concentriques à l'axe (17) et sur lesquels sont montés des outils d'agitation (20) à la manière d'aubes ou de palettes (48).
  17. Dispositif selon la revendication 7, caractérisé en ce que la au moins une sortie (25, 29; 31, 31") pour la matière traitée possède une largeur minimale (a) d'au moins 5 et de préférence d'au moins 10 mm.
  18. Dispositif selon l'une des revendications 7 à 17, caractérisé en ce qu'il est prévu un dispositif de régulation et de commande (50) servant à accroître la vitesse de rotation de l'unité d'agitation et/ou à réduire l'amenée de la matière à traiter, lors de la réduction de la puissance absorbée du moteur d'entraînement (5, 5").
EP95113662A 1994-09-09 1995-08-31 Procédé et appareil pour le broyage continu autogène d'une matière à traiter fluide Expired - Lifetime EP0700724B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4432153 1994-09-09
DE4432153A DE4432153A1 (de) 1994-09-09 1994-09-09 Verfahren und Vorrichtung zum kontinuierlichen autogenen Mahlen eines fließfähigen Behandlungsguts
US08/524,639 US5570846A (en) 1994-09-09 1995-09-07 Method and apparatus for the continuous autogenous grinding of free-flowing stock

Publications (3)

Publication Number Publication Date
EP0700724A1 EP0700724A1 (fr) 1996-03-13
EP0700724B1 EP0700724B1 (fr) 2000-01-26
EP0700724B2 true EP0700724B2 (fr) 2005-09-21

Family

ID=25939982

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Application Number Title Priority Date Filing Date
EP95113662A Expired - Lifetime EP0700724B2 (fr) 1994-09-09 1995-08-31 Procédé et appareil pour le broyage continu autogène d'une matière à traiter fluide

Country Status (8)

Country Link
US (1) US5570846A (fr)
EP (1) EP0700724B2 (fr)
JP (1) JPH0889836A (fr)
CN (1) CN1041998C (fr)
BR (1) BR9503976A (fr)
CA (1) CA2157700A1 (fr)
DE (1) DE4432153A1 (fr)
ZA (1) ZA957582B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19528958A1 (de) * 1995-08-08 1997-02-13 Hoechst Ag Autogenes Mahlen von Siliziumnitrid
DE19635500B4 (de) * 1996-09-03 2008-01-10 Zoz Gmbh Vorrichtung zur Hochenergie- und/oder Feinstmahlung von Feststoffen und Verfahren zu dessen Betrieb
WO2011044940A1 (fr) 2009-10-15 2011-04-21 Bühler AG Mélangeur centrifuge, procédé et utilisation pour le broyage
DE102010012620A1 (de) * 2010-03-24 2011-09-29 Siemens Aktiengesellschaft Verfahren zum Betrieb einer Mühle
CN102553686B (zh) * 2012-03-15 2013-07-24 李强 一种轴转式球磨机
DE102013215257A1 (de) 2013-08-02 2015-02-05 Wacker Chemie Ag Verfahren zum Zerkleinern von Silicium und Verwendung des zerkleinerten Siliciums in einer Lithium-Ionen-Batterie
DE102013021757A1 (de) * 2013-12-20 2015-06-25 Netzsch Trockenmahltechnik Gmbh Maschine mit fliegend gelagertem Rotor
TW201540358A (zh) * 2014-04-29 2015-11-01 Univ Nat Cheng Kung 剝片裝置、剝片設備以及剝片方法
CN106436424B (zh) * 2016-12-19 2017-11-10 重庆市沃利克环保设备有限公司 多功能纸塑清洗分离淬浆设备
CN110681451B (zh) * 2019-10-18 2024-04-30 内蒙古超牌新材料股份有限公司 防溢浆的立式湿法球磨机及其防溢浆控制方法
CN114459222B (zh) * 2022-02-22 2023-01-31 郑州鼎力新能源设备有限公司 一种用于木屑干燥处理装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725685A1 (de) † 1976-06-09 1977-12-15 Funk Heporaut Kirsti Wellendichtung, insbesondere an einer ruehrwerk- oder kolloidmuehle
EP0278041A1 (fr) † 1987-01-23 1988-08-17 Kubota Ltd. Broyeur vertical

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1482391B1 (de) * 1964-06-20 1970-08-20 Draiswerke Gmbh Ruehrwerksmuehle
US3545687A (en) * 1968-06-27 1970-12-08 Martin Marietta Corp Media mill
US3844490A (en) * 1972-12-06 1974-10-29 G Schold Apparatus for dispersing finely divided solid particles in a liquid vehicle
DE2827865A1 (de) * 1978-06-24 1980-01-17 Draiswerke Gmbh Anwendung einer ruehrwerksmuehle mit zwangszufuehreinrichtung
US4206879A (en) * 1978-08-10 1980-06-10 Gebrueder Buehler Ag Agitator mill
AT367657B (de) * 1978-08-24 1982-07-26 Buehler Ag Geb Ruehrwerkskugelmuehle-regelung
DE2953616A1 (en) * 1979-03-27 1981-04-23 S Alekhin Method of control of process of dispersion of solid phase in a liquid phase
DE3249928C3 (de) * 1982-12-10 1995-06-29 Buehler Ag Geb Rührwerksmühle
DE3345680A1 (de) * 1983-12-16 1985-06-20 Gebrüder Netzsch, Maschinenfabrik GmbH & Co, 8672 Selb Ruehrwerksmuehle
DE3431636C1 (de) 1984-08-29 1985-10-17 Reimbold & Strick GmbH & Co, 5000 Köln Ringspalt-Kugelmuehle
DD227339B5 (de) * 1984-10-15 1996-04-04 Petzholdt Heidenauer Maschinen Ruehrwerksmuehle
DE3437866A1 (de) * 1984-10-16 1986-04-17 Basf Farben + Fasern Ag, 2000 Hamburg Dispergierverfahren und ruehrwerksmuehle zu seiner durchfuehrung
US5158239A (en) * 1984-10-16 1992-10-27 Basf Lacke & Farben Ag Dispersing process and stirred ball mill for carrying out this process
US4775393A (en) * 1985-04-11 1988-10-04 The Standard Oil Company Autogenous attrition grinding
CN85106019B (zh) 1985-08-27 1987-10-28 赖博尔德-斯特里克股份公司 环形缝隙式球磨机
DE3614980C1 (de) * 1986-05-02 1993-05-27 Draiswerke Gmbh Regelungseinrichtung fuer eine Ruehrwerksmuehle
US4932166A (en) * 1986-05-30 1990-06-12 The Carborundum Company Inert autogenous attrition grinding
DE4025987C2 (de) * 1990-08-16 1998-04-09 Buehler Ag Rührwerksmühle
DE9209222U1 (de) * 1992-07-09 1992-09-24 Tsay, Chung-Shyong, Lu-Chou Country, Taipeh Pulverisiervorrichtung für feuchtes Mahlgut

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2725685A1 (de) † 1976-06-09 1977-12-15 Funk Heporaut Kirsti Wellendichtung, insbesondere an einer ruehrwerk- oder kolloidmuehle
EP0278041A1 (fr) † 1987-01-23 1988-08-17 Kubota Ltd. Broyeur vertical

Also Published As

Publication number Publication date
JPH0889836A (ja) 1996-04-09
EP0700724B1 (fr) 2000-01-26
ZA957582B (en) 1996-04-15
US5570846A (en) 1996-11-05
EP0700724A1 (fr) 1996-03-13
CN1041998C (zh) 1999-02-10
BR9503976A (pt) 1996-09-24
CN1119556A (zh) 1996-04-03
CA2157700A1 (fr) 1996-03-10
DE4432153A1 (de) 1996-03-14

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