EP0370022B1 - Rührwerksmühle - Google Patents

Rührwerksmühle Download PDF

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Publication number
EP0370022B1
EP0370022B1 EP88904510A EP88904510A EP0370022B1 EP 0370022 B1 EP0370022 B1 EP 0370022B1 EP 88904510 A EP88904510 A EP 88904510A EP 88904510 A EP88904510 A EP 88904510A EP 0370022 B1 EP0370022 B1 EP 0370022B1
Authority
EP
European Patent Office
Prior art keywords
grinding
chamber
grinding chamber
agitator
interior
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
EP88904510A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0370022A1 (de
Inventor
Philipp Schmitt
Norbert 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.)
Buehler GmbH
Original Assignee
Draiswerke 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6327782&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0370022(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Draiswerke GmbH filed Critical Draiswerke GmbH
Priority to AT88904510T priority Critical patent/ATE83176T1/de
Publication of EP0370022A1 publication Critical patent/EP0370022A1/de
Application granted granted Critical
Publication of EP0370022B1 publication Critical patent/EP0370022B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to an agitator mill for treating flowable regrind, with a grinding container which delimits a largely closed grinding chamber and a stirrer, which is arranged in a rotationally drivable manner and is pot-shaped in relation to a common central longitudinal axis, within which an inner stator which is firmly connected to the grinding container is arranged , an outer grinding chamber being formed between the grinding container and an outer casing of the agitator and an inner grinding chamber arranged coaxially within the outer grinding chamber and connected to it via a deflection chamber between an inner casing of the agitator and the inner stator, the outer grinding chamber, the deflection chamber and the inner grinding chamber form the grinding chamber, which is partially filled with auxiliary grinding media, a grinding material feed chamber upstream of the grinding chamber and a separating device downstream of the grinding chamber for the passage of the grinding material being arranged on the same side of the grinding container s ind, and wherein overflow channels are provided in the agitator for returning the auxiliary grinding bodies using centrifugal
  • the outside grinding chamber tapers on the one hand and the inner grinding chamber each in the shape of a truncated cone, ie the cross section of the grinding chamber is conical on each side of the central longitudinal axis.
  • the ground material flows through the agitator mill from the inside to the outside, ie it flows into the inner grinding chamber at the narrow diameter, then flows through the radially widening inner grinding chamber, the deflection chamber and then the radially widening outer grinding chamber. From there it flows radially inwards through a space delimited on one side by the agitator to a separating device through which the ground material is discharged.
  • This separating device is followed by the entry of an overflow channel, the entry of which is arranged radially inside the separating device, that is to say it is arranged downstream. From there, the auxiliary grinding bodies flow through overflow channels in the rotor into the initial area of the inner grinding chamber.
  • an agitator mill which has a grinding chamber with a cylindrical inner wall and a cylindrical rotor, an annular cylindrical grinding chamber being formed between the rotor and the inner wall of the grinding container.
  • the free end of the agitator has a cavity into which a separating device projects.
  • the Ruhrtechnik is provided with recesses all around the separating device, which allow the auxiliary grinding bodies which flow freely into the cavity together with the material to be ground to exit radially.
  • an agitator mill is known in which an annular cylindrical grinding space is formed between the cylindrical inner wall of a grinding container and a cylindrical rotor.
  • Grist is fed into the grinding chamber from below. It is removed at the top by a separator. Upstream of the separating device, an overflow channel is formed in the grinding container, into which the auxiliary grinding bodies are thrown off before reaching the separating device. They are fed back into the regrind before entering the grinding chamber.
  • the invention is based on the object of developing an agitator mill of the generic type in such a way that a return of the auxiliary grinding bodies which largely prevents wear of the separating device is achieved while the grinding body distribution in the grinding chamber is as uniform as possible.
  • the outer grinding chamber and the inner grinding chamber are formed essentially ring-cylindrical, that the regrind feed chamber opens into the beginning of the outer grinding chamber in the flow direction of the ground material, that the separating device adjoins in the flow direction of the ground material the end of the inner grinding chamber connects and that the overflow channels connect the end of the inner grinding chamber with the beginning of the outer grinding chamber and - in relation to the direction of flow of the ground material - are arranged upstream of the separating device.
  • the cylindrical configuration of the inner grinding chamber and the outer grinding chamber means that the material to be ground and in particular the auxiliary grinding bodies need only cover small radial paths on the way through the grinding container.
  • the return of the auxiliary grinding bodies takes place from the inside out, that is to say by utilizing the centrifugal forces which occur. Since at the same time the auxiliary grinding bodies are centrifuged off before the material to be ground / grinding media reaches the separating device, the separating device is largely free of auxiliary grinding media and is therefore not exposed to any wear worth mentioning. Since the separating device is largely free of auxiliary grinding bodies, it is possible to use extremely small gap widths.
  • gap widths of up to 0.05 mm can be used without the risk of the separating device becoming blocked, since there is no risk of the auxiliary auxiliary body jamming in front of the separating device.
  • the grinding aids By returning the grinding aids to a region of the grinding chamber that is largely free of grinding aids, an uneven concentration of grinding aids in the grinding chamber or, in the worst case, a grinding aid jam is largely ruled out from the start. From the above it follows that the separating device and the regrind feed space are arranged approximately in a cross-sectional plane of the grinding container, ie both are in the upper region when the grinding container is arranged vertically or on one side when the grinding container is arranged horizontally.
  • the separating device is arranged on an end face of the inner stator and is at least partially surrounded by the agitator to form an annular cylindrical anteroom, additional grinding bodies are prevented from reaching the separating device.
  • the overflow channels are also advantageously opened towards the passage.
  • the manual auxiliary bodies are already forced back in front of the separating device, not only the centrifugal accelerations resulting from their movement being used.
  • Optimal acceleration of the auxiliary grinding bodies in the overflow channels is achieved if the overflow channels are arranged essentially in a plane perpendicular to the central longitudinal axis or if the overflow channels are inclined from the central longitudinal axis against the direction of rotation of the agitator run.
  • a particularly simple feeding of the auxiliary grinding media from the overflow channels into the area free of auxiliary grinding media at the beginning of the external grinding chamber is positively influenced if the overflow channels open approximately parallel to the direction of flow of the grinding material into the transition area between the grinding material supply chamber and the external grinding chamber.
  • a particularly simple cleaning of the separating device is made possible by the fact that the diameter of the separating device is smaller than the inner diameter of the inner stator and that the separating device is designed to be pullable out of the inner stator.
  • conveying devices for the auxiliary mill bodies are provided at the beginning of the internal milling chamber.
  • the agitator mill can be arranged and operated in the same way with a horizontal central longitudinal axis as with a vertical central longitudinal axis or an axis inclined between these two arrangements.
  • the agitator mill can be operated without separate agitating tools on the agitator or the respectively assigned surfaces on the inner stator or on the grinding container.
  • the separating device is not used to any significant degree for separating grinding aids on the one hand and ground material on the other hand, the term separating device is used because it has become generally accepted in the technical language. As can be seen from the above, the separation of the auxiliary grinding bodies from the material to be ground already takes place before the separating device.
  • the agitator mill shown in FIG. 1 has in the usual way a stand 1, on the top of which a projecting support arm 2 is attached, to which in turn a cylindrical grinding container 3 is attached.
  • an electric drive motor 4 is accommodated, which is provided with a V-belt pulley 5, of which a V-belt pulley 8, which is non-rotatably connected to a shaft 7, can be driven in rotation by means of the V-belt 6.
  • the grinding container 3 consists of a cylindrical inner cylinder 10 which surrounds a grinding chamber 9 and which is surrounded by an essentially cylindrical outer jacket 11.
  • the inner cylinder 10 and the outer jacket 11 define a cooling space 12 between them.
  • the lower end of the grinding space 9 is formed by an annular base plate 13 which is fastened to the grinding container by means of screws 14.
  • the grinding container 3 has an upper ring flange 15, by means of which it is fastened to a cover 16 which closes the grinding chamber 9 by means of screws 17.
  • This lid 16 is attached to the underside of a support housing 18, which is attached with its upper end to the support arm 2 of the agitator mill.
  • the support housing 18 has a central cylindrical section 19 which is arranged coaxially to the central longitudinal axis 20 of the grinding container 3. This section 19 is penetrated by the shaft 7, which also runs coaxially to the axis 20 and to which a rotor serving as an agitator 21 and located in the grinding chamber 9 is attached.
  • a regrind supply line 22 opens into the area of the central cylindrical section 19 of the support housing 18 adjacent to the milling chamber 9. Above the mouth of this feed line 22, i.e. Between this feed line 22 and the support arm 2, a seal 23 is provided between the agitator 21 and the section 19, which prevents ground material from escaping upwards in the direction of the support arm 2.
  • cylindrical inner stator 24 is fastened, which consists of a cylindrical outer jacket 26 delimiting the grinding chamber 9 and coaxial with the axis 20 and a cylindrical inner jacket 27 also coaxial with the axis 20.
  • Outer jacket 26 and inner jacket 27 delimit a cooling space 28 between them.
  • the cooling space 28 is connected to a cooling space 29 in the base plate 13, to which cooling water is supplied via a cooling water supply connection piece 30, which is discharged via an outlet connection piece (not shown). Cooling water is supplied to the cooling chamber 12 of the grinding container 3 via a cooling water supply connection 31, which is discharged via a cooling water discharge connection 32.
  • a regrind auxiliary body separating device 34 On its upper end face 33 of the inner stator 24 located in the grinding chamber, a regrind auxiliary body separating device 34 is arranged, which is connected to a regrind discharge line 35.
  • a regrind collecting funnel 36 is provided between the separating device 34 and the discharge line 35.
  • the drain line 35 is provided in the area of the base plate 13 with a handle 37, which in turn is provided with a fastening ring 38 which is detachably connected to the base plate 13 by means of screws 39 or the inner stator 24 which is firmly connected to the latter.
  • the separating device is sealed off from the annular end face 33 of the inner stator 24 by means of a seal 40 and can be pulled out of the inner stator 24 together with the drain line 35 and the collecting funnel 36 after loosening the screws 39, for which purpose the handle 37 is used.
  • the separating device 34 can therefore be pulled out of the grinding chamber 9 without the grinding auxiliary bodies 41 located therein having to be removed from the grinding chamber, since the filling of the grinding chamber 9 with these grinding auxiliary bodies 41 does not reach the front side 33 when the agitator 21 is not driven.
  • the basic structure of the agitator 21 is pot-shaped, i.e. it has an essentially cylindrical rotor 42 which has a cylindrical outer wall 43 and a cylindrical inner wall 44 arranged coaxially thereto and coaxially with the axis 20.
  • a cooling space 45 is formed between the outer wall 43 and the inner wall 44 of the rotor 42.
  • the rotor 42 is attached to a rotor base 46 which is connected to the shaft 7. The supply and discharge of cooling water to the cooling space 45 takes place via cooling water channels 47, 48 formed in the shaft 7.
  • the grinding chamber 9 is subdivided into a cylindrical, outer grinding chamber 9 'on the one hand and an inner grinding chamber 9' 'on the other hand, which are connected to one another by a deflection chamber 49 in the region of the base plate 13.
  • stirring tools 50 designed as pins are attached in the outer grinding chamber 9 ′ and the inner grinding chamber 9 ′′.
  • conveying devices 51 projecting inward toward the inner stator 24, for example provided with inclined surfaces, are attached, by means of which the material to be ground and the auxiliary grinding bodies 41, with appropriate rotation of the agitator 21, move upward into the inner grinding space 9 ′′ in the direction of the separator 34 are promoted.
  • the regrind flows through the regrind feed line 22 in accordance with the flow direction arrows 52 coming through a regrind feed chamber 53 between the rotor base 46 and the cover 16, the outer grinding chamber 9 'downwards, through the deflection chamber 49 radially inwards and from there through the inner grinding chamber 9''up to the separating device 34.
  • the ground material leaves the grinding chamber 9 through the separating device 34, from where it flows through the ground material discharge line 35.
  • the separating device 34 consists of a stack of ring disks 54, between each of which a separation gap 55 is left open, the width of which is smaller than the diameter of the smallest auxiliary grinding bodies 41 used, and as a rule smaller than half the diameter of the latter is the smallest grinding aid body 41 used.
  • This stack of washers 54 is closed at the end by an end plate 56.
  • a retaining ring 57 is provided towards the regrind collecting funnel 36, which is provided with slanted slots 58, by means of which it can be fastened on pins 59 attached to the inner stator 24 in the manner of a bayonet catch.
  • the separating device 34 consisting of the retaining ring 57, the ring washers 54 and the end plate 56, can be easily removed from the collecting funnel 36 with the discharge line 35 by pulling it partially out of the inner stator 24.
  • the overflow channels 60 overlap the end face 33 of the inner stator 24 and are open from the inner wall 44 of the rotor 42 radially inwards and downwards to the inner grinding chamber 9 '', so that through the Walls 62 of the overflow channels 60 are formed in this area, as it were, conveying blades, which fling the auxiliary grinding bodies 41 to the outside before reaching the separating device 34 and through a funnel-shaped guide channel 63 set in the direction of flow 52 back into the transition area between the material feed space 53 and the outer grinding space 9 ' transport back.
  • This guide channel 63 also serves to prevent a short-circuit flow of the ground material from the feed space 53 to the separating device 34.
  • the space between the end plate 56 of the separating device 34 and the rotor base 46 can be closed off by a ring 64 in order to prevent individual grinding aid bodies 41 from penetrating into this space. In this case, the end plate 56 can be omitted.
  • FIG. 5 it can be seen how an end plate 56 ', a package of ring disks 54', the separating gaps 55 'between them, and a retaining ring 57' are connected to one another by means of screws 65 to form a separating device 34 '.
  • overflow channels 60 ' are further upstream of the separating device 34', based on the direction of flow 52.
  • the auxiliary grinding bodies 41 cannot penetrate into the narrow, ring-cylindrical antechamber 66 between the rotor base 46 and the separating device 34 or 34 '.
  • this ring-cylindrical antechamber 66 is connected to the inner grinding chamber 9 ′′ only via a relatively narrow, annular, radially extending passage 67 through which the auxiliary grinding bodies cannot flow radially inwards, since this is opposed by the centrifugal force acting on them.
  • the diameter d of the antechamber 66 is thus smaller than the outer diameter D of the inner stator 24. Since the diameter d 'of the separating device 34 or 34' is smaller than the diameter d of the antechamber 66, it applies that the diameter d 'of the separating device is significantly smaller is than the diameter D of the inner stator 24.
  • the outer diameter d 'of the separating device is somewhat smaller than the inner diameter D' of the inner stator 24, so that it is possible to pull out the separating device as already described.
  • the mentioned stirring tools 50 can be cone-shaped as in the drawings or disk-shaped or in any other suitable manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Hydroponics (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Disintegrating Or Milling (AREA)
  • Beans For Foods Or Fodder (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
EP88904510A 1987-05-18 1988-05-10 Rührwerksmühle Expired - Lifetime EP0370022B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88904510T ATE83176T1 (de) 1987-05-18 1988-05-10 Ruehrwerksmuehle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3716587 1987-05-18
DE3716587A DE3716587C1 (de) 1987-05-18 1987-05-18 Ruehrwerksmuehle

Publications (2)

Publication Number Publication Date
EP0370022A1 EP0370022A1 (de) 1990-05-30
EP0370022B1 true EP0370022B1 (de) 1992-12-09

Family

ID=6327782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88904510A Expired - Lifetime EP0370022B1 (de) 1987-05-18 1988-05-10 Rührwerksmühle

Country Status (18)

Country Link
US (1) US5062577A (pt)
EP (1) EP0370022B1 (pt)
JP (1) JPH0628745B2 (pt)
KR (1) KR950007586B1 (pt)
CN (1) CN1011665B (pt)
AT (1) ATE83176T1 (pt)
AU (1) AU616412B2 (pt)
BR (1) BR8807508A (pt)
CA (1) CA1295980C (pt)
DE (2) DE3716587C1 (pt)
DK (1) DK163965C (pt)
ES (1) ES2011089A6 (pt)
IN (1) IN168654B (pt)
MX (1) MX167682B (pt)
RU (1) RU1782176C (pt)
UA (1) UA5994A1 (pt)
WO (1) WO1988009212A1 (pt)
ZA (1) ZA883012B (pt)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0700723A1 (de) 1994-09-09 1996-03-13 EVV-Vermögensverwaltungs-GmbH Rührwerksmühle
EP0913200A1 (de) 1997-10-28 1999-05-06 DRAISWERKE GmbH Rührwerksmühle
DE10110652B4 (de) * 2001-03-06 2004-01-29 Hosokawa Alpine Ag & Co.Ohg, Rührwerksmühle mit torusförmigem Mahlspalt
DE10241924B3 (de) * 2002-09-10 2004-05-27 Netzsch-Feinmahltechnik Gmbh Rührwerksmühle mit kühlbarer Rührwelle
DE19834397B4 (de) * 1997-10-28 2007-04-05 BüHLER GMBH Rührwerksmühle
DE19819967B4 (de) * 1998-05-05 2007-04-26 BüHLER GMBH Rührwerksmühle
EP1992412A1 (de) 2005-10-11 2008-11-19 Bühler Ag Rührwerksmühle
DE102015107789B3 (de) * 2015-05-19 2016-07-07 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle und Verfahren zum Betreiben einer Rührwerkskugelmühle
EP4032615A1 (de) 2021-01-25 2022-07-27 Wilhelm Niemann GmbH & Co KG Rührwerksmühle

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DE4009092C1 (pt) * 1990-03-21 1991-05-23 Erich Netzsch Gmbh & Co Holding Kg, 8672 Selb, De
DK0574792T3 (da) * 1992-06-18 1999-03-22 Clariant Gmbh Fremgangsmåde til fremstilling af kobberphthalocyaninpigmentpræparater i alfa-fasen
EP0574790B1 (de) * 1992-06-18 1998-05-13 Clariant GmbH Verfahren zur Herstellung von Pigmentzubereitungen auf Basis von Phthalocyaninpigmenten
DE4400329A1 (de) * 1994-01-07 1995-07-20 Hoechst Ag Verwendung von Fettsäuretauriden zum Dispergieren polycyclischer Pigmente
DE4402609C2 (de) * 1994-01-28 1997-05-07 Hosokawa Alpine Ag Rührwerkskugelmühle
DE4403231A1 (de) * 1994-02-03 1995-08-10 Hoechst Ag Verfahren zur Herstellung von Chinacridonpigmenten
JPH07285806A (ja) * 1994-04-14 1995-10-31 Sumitomo Chem Co Ltd 線 香
DE4413848A1 (de) * 1994-04-21 1995-10-26 Hoechst Ag Feinverteilungsverfahren zur Herstellung von Kupferphthalocyaninpigmenten
DE4413849A1 (de) * 1994-04-21 1995-10-26 Hoechst Ag Feinverteilungsverfahren zur Herstellung von organischen Pigmenten
DE4432198A1 (de) * 1994-09-09 1996-03-14 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
DE59503977D1 (de) 1994-09-16 1998-11-26 Clariant Gmbh Verfahren zur Herstellung von 4,10-Dibromanthanthron-Pigment
EP0753544B1 (de) * 1995-07-06 2001-10-31 Clariant GmbH Verfahren zur Herstellung von flüssigen Pigmentpräparationen
DE19613190A1 (de) * 1996-04-02 1997-10-09 Hoechst Ag Verfahren zur Herstellung von linearen, unsubstituierten Chinacridonpigmenten der ß-Phase
DE19632757A1 (de) * 1996-08-14 1998-02-19 Draiswerke Gmbh Rührwerksmühle
DE19638354A1 (de) * 1996-09-19 1998-03-26 Draiswerke Inc Mahwah Rührwerksmühle
US6121344A (en) * 1998-06-19 2000-09-19 Kerr Corporation Optimum particle sized hybrid composite
US6300390B1 (en) 1998-06-09 2001-10-09 Kerr Corporation Dental restorative composite
DE29814714U1 (de) * 1998-08-17 1998-12-10 Draiswerke Gmbh, 68305 Mannheim Rührwerksmühle
US6010085A (en) * 1999-03-17 2000-01-04 Kerr Corporation Agitator mill and method of use for low contamination grinding
DE10005186A1 (de) 2000-02-05 2001-08-09 Clariant Gmbh Verfahren zur Herstellung von Perylen-3,4,9,10-tetracarbonsäurediimid in transparenter Pigmentform
KR100426226B1 (ko) * 2001-04-23 2004-04-08 문덕주 초정밀 연마용 연마체 및 연마방법
DE10216681A1 (de) * 2002-04-16 2003-11-06 Clariant Gmbh Verfahren zur Herstellung von verküpbaren organischen Pigmenten
JP2004181349A (ja) * 2002-12-03 2004-07-02 Mitsubishi Heavy Ind Ltd 汚泥処理装置及び汚泥処理方法
ES2245195B1 (es) * 2003-09-11 2007-02-16 Oliver Y Batlle, S.A. Molino agitador vertical.
EP1779923B1 (en) * 2004-03-29 2007-12-26 Kansai Paint Co., Ltd. Mixer with a stirrer having tapered blades
CN101884947B (zh) * 2005-10-11 2011-07-20 比勒股份公司 搅拌式研磨机
DE102005050511A1 (de) * 2005-10-21 2007-04-26 Clariant Produkte (Deutschland) Gmbh Verfahren zur Herstellung von feinteiligem C.I. Pigment Red 254
CH700446A1 (de) * 2009-02-24 2010-08-31 Bachofen Willy A Ag Rührwerkskugelmühle.
DE102011010527A1 (de) † 2011-02-07 2012-08-09 Lipp Mischtechnik Gmbh Rührwerkskugelmühle
EP2683487B1 (de) * 2011-03-11 2016-03-09 Willy A. Bachofen AG Rührwerkskugelmühle
CN103041897B (zh) * 2011-10-17 2015-02-25 谢小飞 介质搅拌磨的叠装涡轮式料珠分离器
CN104190504A (zh) * 2014-08-15 2014-12-10 广州派勒机械设备有限公司 高性能超级流量纳米砂磨机
DE102015105815B3 (de) * 2015-04-16 2016-06-16 Wilhelm Niemann GmbH & Co. KG Maschinenfabrik Hochleistungs-Ringraum-Tauchmühle mit rotierendem Trennsieb mit Spaltdichtung
KR101708376B1 (ko) * 2016-03-29 2017-02-21 세우씨앤이(주) 비드 밀

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US4742966A (en) * 1985-06-21 1988-05-10 Morehouse Industries, Inc. Media mill screen assembly
EP0249879B1 (en) * 1986-06-20 1990-10-03 Inoue Seisakusho (Mfg) Co., Ltd. Dispersing and grinding apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0700723A1 (de) 1994-09-09 1996-03-13 EVV-Vermögensverwaltungs-GmbH Rührwerksmühle
EP0913200A1 (de) 1997-10-28 1999-05-06 DRAISWERKE GmbH Rührwerksmühle
DE19834397B4 (de) * 1997-10-28 2007-04-05 BüHLER GMBH Rührwerksmühle
DE19819967B4 (de) * 1998-05-05 2007-04-26 BüHLER GMBH Rührwerksmühle
DE10110652B4 (de) * 2001-03-06 2004-01-29 Hosokawa Alpine Ag & Co.Ohg, Rührwerksmühle mit torusförmigem Mahlspalt
DE10241924B3 (de) * 2002-09-10 2004-05-27 Netzsch-Feinmahltechnik Gmbh Rührwerksmühle mit kühlbarer Rührwelle
EP1992412A1 (de) 2005-10-11 2008-11-19 Bühler Ag Rührwerksmühle
DE102015107789B3 (de) * 2015-05-19 2016-07-07 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle und Verfahren zum Betreiben einer Rührwerkskugelmühle
WO2016184445A1 (de) 2015-05-19 2016-11-24 Netzsch-Feinmahltechnik Gmbh Rührwerkskugelmühle und verfahren zum betreiben einer rührwerkskugelmühle
EP4032615A1 (de) 2021-01-25 2022-07-27 Wilhelm Niemann GmbH & Co KG Rührwerksmühle
DE102021101527A1 (de) 2021-01-25 2022-07-28 Wilhelm Niemann Gmbh & Co. Rührwerksmühle
DE102021101527B4 (de) 2021-01-25 2023-05-17 Wilhelm Niemann Gmbh & Co. Rührwerksmühle

Also Published As

Publication number Publication date
CN1039740A (zh) 1990-02-21
WO1988009212A1 (en) 1988-12-01
BR8807508A (pt) 1990-03-27
JPH0628745B2 (ja) 1994-04-20
UA5994A1 (uk) 1994-12-29
CA1295980C (en) 1992-02-18
DK163965C (da) 1992-09-28
ZA883012B (en) 1989-01-25
DK579789A (da) 1989-11-17
MX167682B (es) 1993-04-05
DE3716587C1 (de) 1988-04-28
AU1792088A (en) 1988-12-21
EP0370022A1 (de) 1990-05-30
KR890701210A (ko) 1989-12-19
JPH02504360A (ja) 1990-12-13
DE3876628D1 (en) 1993-01-21
US5062577A (en) 1991-11-05
RU1782176C (ru) 1992-12-15
DK579789D0 (da) 1989-11-17
DK163965B (da) 1992-04-27
ES2011089A6 (es) 1989-12-16
ATE83176T1 (de) 1992-12-15
KR950007586B1 (ko) 1995-07-12
CN1011665B (zh) 1991-02-20
IN168654B (pt) 1991-05-18
AU616412B2 (en) 1991-10-31

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