WO2024200024A1 - Broyeur à billes à agitateur avec séparation externe de milieux de broyage - Google Patents

Broyeur à billes à agitateur avec séparation externe de milieux de broyage Download PDF

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Publication number
WO2024200024A1
WO2024200024A1 PCT/EP2024/056798 EP2024056798W WO2024200024A1 WO 2024200024 A1 WO2024200024 A1 WO 2024200024A1 EP 2024056798 W EP2024056798 W EP 2024056798W WO 2024200024 A1 WO2024200024 A1 WO 2024200024A1
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WO
WIPO (PCT)
Prior art keywords
grinding
grinding media
return channel
agitator
ball mill
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.)
Ceased
Application number
PCT/EP2024/056798
Other languages
German (de)
English (en)
Inventor
Achim Philipp Sturm
Eduard Nater
Wendelin Kneisl
Philipp Schmitt
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 AG
Original Assignee
Buehler 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 Buehler AG filed Critical Buehler AG
Priority to CN202480023462.7A priority Critical patent/CN120936439A/zh
Priority to KR1020257031289A priority patent/KR20250151500A/ko
Priority to EP24710451.6A priority patent/EP4460399A1/fr
Publication of WO2024200024A1 publication Critical patent/WO2024200024A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B02C17/161—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
    • B02C17/18—Details
    • B02C17/183—Feeding or discharging devices
    • B02C17/1835—Discharging devices combined with sorting or separating of material

Definitions

  • the present invention relates to a stirred ball mill provided with grinding bodies, in particular the separation of the grinding bodies from the material to be ground.
  • Agitator ball mills have a wide range of applications for grinding and dispersing solids in liquids. They are used, for example, in the production of adhesives, coatings, printing inks, cosmetics, pharmaceuticals or also for the production of raw materials (particularly silicon) for battery pastes.
  • the usually cylindrical process or dispersion zone hereinafter also generally referred to as the grinding chamber, is formed in a grinding container and is delimited by an inner grinding chamber wall.
  • An agitator shaft which can rotate about its axis extends through this grinding chamber along its central longitudinal axis and to which several grinding elements, in particular grinding disks or grinding pins, are attached.
  • the grinding material is introduced into the grinding chamber by a grinding material feed and is ground by the rotation of the grinding elements, usually under the effect of grinding bodies or auxiliary grinding bodies, such as ceramic balls, arranged in the grinding chamber, and is removed from the grinding chamber after processing by a grinding material discharge.
  • Stirred ball mills are known, for example, from EP 1 992412 Bl or EP 2 178 642 Bl.
  • Agitator ball mills are available in different designs, for example as a full-space mill with grinding disks on the agitator or as an annular gap high-performance mill with grinding elements on the rotor and stator.
  • a high-performance mill with a power input of more than 2 kW / liter of grinding chamber volume is recommended.
  • the pumping effect can be integrated in the grinding chamber and generated by pressure-building elements mounted on the rotor shaft, possibly in interaction with static elements attached to the grinding container.
  • Pressure-building rotating elements are, for example, conveying grinding disks, a conveyor screw, a centrifugal pump wheel or a side channel pump wheel, whereby the geometry of the static grinding container can act as a pump housing or conveyor trough.
  • Fig. 1 shows an example of a stirred ball mill with grinding disks 17, which are arranged on a stirring shaft 11 in a grinding chamber 100.
  • the stirring shaft 11 is set in rotation by a motor 110 via a belt drive 120.
  • Fig. 1 also shows a bearing 130 for the stirring shaft 11, as well as a seal 140 for sealing the grinding chamber 100.
  • the material to be ground is introduced into the grinding chamber 100 through the feed 13, and the product is removed from the grinding chamber after processing through the discharge 15.
  • the product flow direction within the grinding chamber 100 is indicated by the arrow 19'.
  • the grinding media can be separated by a dynamic separation gap or a sieve body, for example a central sieve or a plug-in sieve, which is arranged at the product outlet of the process zone, i.e. within the grinding chamber.
  • a deflector basket 31 is provided as part of the rotor, which rotates around the sieve 32 in order to throw the grinding media and the coarse grain, i.e. unwanted particles or still unground grinding material, away from the sieve surface.
  • the deflector basket 31 is preferably made of steel and is therefore relatively heavy. Since the rotor is usually only mounted on one side, i.e.
  • the basket 31 is placed in an unfavorable position in horizontally arranged rotors, as shown in Fig. 1, namely at the very other end of the shaft.
  • a vertical rotor arrangement no deflection of the shaft is to be expected, but even in this case the design of the deflector basket is relatively complex and costly.
  • the grinding media separation is also difficult to access for cleaning. Emptying and opening the process zone is unavoidable.
  • a grinding material/grinding media discharge line leads from the agitator mill to a grinding material/grinding media separation device 24 arranged separately from the agitator mill with a Cylindrical sieve as a grinding media retention device.
  • a grinding media separation is subject to mechanical wear from the grinding media and, in addition to the additional space required, the entire process zone must be emptied during maintenance work, caused for example by a clogged or dirty sieve on the grinding media separation.
  • high product throughputs or high product viscosities in particular lead to a concentration of the grinding media in front of the grinding media separation and the grinding media can sometimes no longer be kept away from the separation system, for example the sieve or a friction gap. This can lead to high product temperatures, high pressure in the process zone, increased wear on the grinding media, rotor and stator of the mill, and sometimes even to clogging of the grinding media separation. This results in an interruption in production.
  • the grinding media separation can therefore limit the product throughput or even bring an entire process to a standstill.
  • classic grinding media separation often results in clogging, i.e. blockages or blockages, due to dead-end filtration.
  • the invention provides in particular a stirred ball mill with external grinding media return, in which the grinding media separation is carried out by a tangential flow separation by means of a sieve body arranged in a grinding media return channel.
  • the circulation of the material to be ground through the grinding media return channel is supported by a pump device.
  • an agitator ball mill with external grinding media separation has a grinding container with a grinding chamber, a product inlet for introducing grinding material into the grinding chamber, an agitator with grinding elements arranged rotatably in the grinding chamber and a plurality of grinding media arranged in the grinding chamber.
  • a grinding media return channel is also provided with an inlet through which the grinding media-grinding material mixture arranged in the grinding chamber during operation can enter the grinding media return channel from the grinding chamber and an outlet through which the grinding media-grinding material mixture is guided back into the grinding chamber.
  • a tangential flow separation is arranged in the grinding media return channel, which has a separating device for separating the grinding media from the grinding material and a product outlet for the ground grinding material to flow out of the agitator mill after the separating device. Furthermore, a device for exerting a pumping action to support circulation of the grinding media-grinding material mixture through the grinding media return channel is arranged.
  • the inlet of the grinding media return channel can be arranged on the side of the grinding chamber opposite the product inlet. Furthermore, the outlet of the grinding media return channel can be arranged on the side of the product inlet.
  • the device for exerting a pumping action can comprise a pump arranged in the grinding media return channel before or after the tangential flow separation.
  • the agitator may have an agitator shaft, with several
  • the device for exerting a pumping effect can have at least one conveyor disk on the agitator, which is designed to support a flow of the grinding media/grinding material mixture in the grinding chamber from the product inlet in the direction of the inlet of the grinding media return channel.
  • the conveyor disk can be arranged on the side of the outlet and/or on the side of the inlet of the grinding media return channel.
  • the length of the separating device is 0.25 to 10, preferably 0.4 to 4, based on its diameter.
  • the separating device has a sieve body, wherein the product outlet for the ground material separated from the grinding bodies is arranged radially to the sieve body.
  • the separating device can be subjected to vibration or ultrasound.
  • the sieve body can also have a device for cleaning the sieve body to remove grinding media and coarse grain from the sieve body.
  • the cleaning device can also be designed to rotate in the grinding media return channel or to perform a lifting movement.
  • Commercially available edge gap filters usually have a sump chamber for collecting the particles to be separated, the retentate. According to the present invention, an edge gap filter can be used as a tangential flow filter, with the outlet line of the sump chamber remaining constantly open and returning the grinding media-grinding material mixture to the grinding chamber.
  • the inlet of the grinding media return channel can be arranged radially inward in the grinding chamber with respect to the agitator. A grinding media/ground material mixture that is slightly loaded with grinding media then flows through the grinding media return channel.
  • the grinding chamber of the agitator ball mill can be cylindrical with a vertically aligned central longitudinal axis. Then the product inlet and the outlet of the grinding media return channel can be arranged at the top and the inlet of the grinding media return channel at the bottom of the grinding chamber. Alternatively the product inlet and the outlet of the grinding media return channel can be arranged at the bottom and the inlet of the grinding media return channel at the top of the grinding chamber.
  • the invention can be used particularly advantageously if the grinding bodies have a diameter of at most 0.3 mm, preferably have a diameter of at most 0.15 mm and even more advantageously have a diameter of at most 0.075 mm.
  • Two or more tangential flow separations can be arranged in parallel or serial functional arrangement in the grinding media return channel and can be used simultaneously or alternately.
  • the ratio of the inner diameter of the grinding chamber to the diameter of the grinding media return channel is preferably between 5 and 30, in particular between 6 and 15.
  • the speed of the grinding media-ground material mixture in the grinding media return channel should preferably be at least 2 m/s.
  • the invention further provides a channel piece for use as a grinding media return channel for separating grinding media in an agitator ball mill.
  • the channel piece has an inlet connection and an outlet connection which are designed to be connected to the grinding chamber of the agitator ball mill. Furthermore, a tangential flow separation with a product outlet which is configured for the discharge of the ground material from the agitator ball mill is arranged in the channel piece. This channel piece can be used to retrofit an existing agitator ball mill.
  • the tangential flow separation used according to the present invention is a method of filtering and is usually used to separate coarse grain or foreign matter from suspensions. According to the present invention, the tangential flow separation is used to separate the grinding media from the grinding material.
  • the grinding media separator according to the present invention is also located outside and thus spatially separated from the grinding chamber. It is not exposed to any severe mechanical wear and can be cleaned and replaced in a controlled manner when the mill is full.
  • two or more grinding media separators arranged in parallel for example using a parallel sieve with branches and optional valves in the pipeline, one of the sieves can be serviced while the machine is running, while the other is in use.
  • the grinding media separators can also be arranged one after the other in series.
  • Figure 1 a conventional agitator ball mill
  • Figures 3a and 3b show various embodiments of a tangential flow separation for use in accordance with the present invention.
  • the invention is explained below using a horizontally arranged agitator ball mill with several grinding disks as an example.
  • the invention is equally applicable to agitator ball mills of a different type, for example to a vertically arranged agitator ball mill in which the grinding chamber is formed by a rotor rotating about a vertically aligned central longitudinal axis and a stator in which dispersions are produced using the grinding media.
  • grinding elements for example in the form of round pins, can be attached to the rotor and/or the stator.
  • the present invention provides a stirred ball mill with external grinding media return and integrated grinding media separation by means of tangential flow separation with a separation device, for example a sieve body or a friction gap or several friction gaps.
  • a separation device for example a sieve body or a friction gap or several friction gaps.
  • Embodiments of a mill according to the invention are shown in Figures 2a to 2e, which differ only in the arrangement of the tangential flow separation.
  • Related to the Grinding chamber volume (i.e. the container volume without agitator) of agitator ball mill can be filled with grinding media from 50% to 100%.
  • the inlet to the grinding media return line can be on the opposite side of the grinding chamber as its outlet.
  • the inlet is preferably located near the stator wall or, as shown in Fig. 2a, in the stator wall, in any case in an area remote from the center. This is the area of local overpressure.
  • the outlet of the grinding media return preferably opens at the front near the center of the grinding chamber on the product inlet side, i.e. in a grinding chamber area of local negative pressure.
  • the pressure difference between the inlet and outlet in the grinding media return channel is preferably 0.3 to 3 bar.
  • the flow rate through the grinding media return channel should be at least 50 l/min, preferably more than 100 l/min. In relation to the diameter of the grinding media return channel, the flow rate can be between 0.9 and 20 l/(min*mm), for example, so 115 l/min through a grinding media return channel of 35 mm results in 3.3 l/(min*mm).
  • the flow rate through the grinding media return channel to the actual recirculation throughput of the agitator ball mill is preferably between 3 and 150.
  • a grinding chamber 100 is formed in the usual way by a grinding container.
  • a rotating agitator 11 is arranged in the grinding chamber, which has several grinding disks 17 that are arranged parallel to one another.
  • the material to be ground is introduced into the grinding chamber 100 through the product inlet 13 and dispersed under the action of grinding media or grinding media. Due to the product inlet 13 arranged on the right-hand side in the drawing and the inlet 23 arranged on the left on the outer circumference of the grinding container into a grinding media return channel 20 that leads to the product outlet 15, a product flow direction within the grinding chamber results, which is shown by the arrow 19.
  • the grinding media return channel 20 is provided through which the mixture of grinding media and grinding material can flow during operation.
  • a device for exerting a pumping effect which can be provided, for example, in the form of a pump 27 in the grinding media return channel 20.
  • at least one of the grinding disks 17 can be designed as a conveyor disk 18, which moves the grinding material in the direction of the grinding flow direction 19.
  • This is preferably the grinding disk closest to the inlet 23 of the grinding media return channel 20.
  • this can alternatively also be - as shown in Fig. 2 - the first grinding disk to the outlet 25 or both at the inlet 23 and at the outlet 25, i.e. at least two conveyor disks.
  • the flow velocity in the grinding media return channel should be at least 2 m/s.
  • the grinding media return channel 20 opens back into the grinding chamber 100 at the opposite end of the grinding chamber 100, preferably centrally near the longitudinal axis of the grinding chamber 100.
  • the outlet 25 of the grinding media return channel 20 is arranged on the same side as the inlet 13 for the product.
  • the ratio of the inner diameter D of the grinding chamber to the diameter d of the grinding media return channel is preferably between 5 and 30, in particular between 6 and 20.
  • a grinding media separation is provided in the grinding media return channel 20, which is designed according to the invention as a tangential flow separation 21 in the form of a tangential flow filter.
  • the grinding media-ground material mixture flows past a sieve body 22 and only a portion of the finished ground material is guided through the sieve body 22 to a product outlet 15 for the ground material separated from the grinding media and thus separated from the grinding media.
  • This arrangement prevents the grinding media from concentrating against a sieve at the end of the process zone, where they are pressed and finally have to be conveyed away on the sieve surface by means of a rotor basket, as in the prior art.
  • the grinding media together with a portion of the ground material, have to pass through the flow along the entire length of the sieve in order to re-enter the grinding chamber 100 and further disperse the material to be ground there.
  • the forced flow of grinding media along the entire length of the sieve or along the entire sieve surface prevents the deposition of grinding media and coarse product grain, i.e. the portion of the product that has not yet been sufficiently ground.
  • the flow rate of the grinding material/grinding media mixture is ideally high and the flow form is ideally turbulent. This allows the grinding material/grinding media mixture to flow over and clean the entire screen surface.
  • the screen surface is kept clear by the existing product flow forces. Energy-consuming throwing away or deflecting of the grinding media using a deflector cage is no longer necessary. This can be achieved in particular by the above-mentioned flow rate of, for example, at least 2 m/s.
  • the separation surface can be cleaned with pure liquid.
  • the type of separating element 22 of the tangential flow separation 21 can be selected, for example, as a wire wound sieve, slotted foil on a support body, mesh filter fabric or membrane.
  • the arrangement of several modular sieve cartridges in the grinding media return line is also possible.
  • the separating element can also be at least one dynamic separation gap.
  • the size of the grinding media used usually falls in a range between 0.03 mm and 3.0 mm. Especially when using very small grinding media with a diameter of 0.3 mm or less in combination with high product viscosities, the dead-end filtration commonly used in the state of the art often leads to clogging and blocking of the grinding media separation. Since this is usually provided in the grinding chamber in the state of the art, it is difficult to access for cleaning, so that the grinding chamber must be emptied and opened.
  • the grinding media separation according to the present invention is easily accessible and can be easily can be achieved.
  • the grinding media separation can be subjected to vibration or ultrasound according to the invention.
  • the sieve body within the grinding media return can also be designed to rotate. In this case, the sieve body can rotate during operation, but this is not necessary. In particular, the sieve body does not have to rotate during cleaning.
  • the grinding media separation can be provided with a device for cleaning the filter, whereby, for example, a scraper scrapes along the tubular sieve 22 and thus foreign bodies, impurities, grinding media or coarse grains of the ground material are removed.
  • FIG. 2b A further embodiment of an agitator ball mill according to the invention is shown in Fig. 2b.
  • the two tangential flow separators 21a and 21b are constructed in accordance with the tangential flow separator 21 of Fig. 2a and each have a separating element 22a, 22b, in particular a sieve, and a product outlet 15a, 15b.
  • the tangential flow separators 21a and 21b are arranged in channels 201, 202, which branch off from the grinding media return channel 20 by means of suitable valves 203.
  • FIG. 2c A further embodiment is shown in Fig. 2c.
  • the tangential flow separation 21 is arranged in the grinding media return channel 20 immediately before the outlet 25 of the grinding media return channel.
  • Fig. 2d shows an embodiment in which the outlet 25 of the grinding media return channel 20 is integrated into the product inlet 13.
  • This can be implemented by a T-piece 205 that brings together the channels of the outlet 25 and the product inlet 13.
  • this may only take place in the grinding media return channel 20 behind the partition 21, so that no freshly fed product is led through the partition 21.
  • This allows a further simplification of the structure of the agitator ball mill, since only a single access to the grinding chamber needs to be provided.
  • Fig. 2e shows an embodiment with a structure that basically corresponds to that shown in Fig. 2d.
  • the grinding media return channel 20 according to the invention is used in a vertically arranged high-performance agitator mill.
  • the outlet 25 of the grinding media return channel 20 is also integrated into the product inlet 13, which is again implemented by a T-piece 205.
  • the merging by means of a T-piece in the grinding media return channel 20 may only take place behind the partition 21, so that no freshly fed product is led through the partition 21.
  • the product can enter the grinding chamber from above. In this case, the product-grinding media flow direction in the grinding media channel 20 would also be reversed accordingly.
  • FIGS 3a and 3b show in detail possible embodiments of the tangential flow separation 21 used according to the invention.
  • Fig. 3a shows the embodiment also shown in Figures 2a to 2e, wherein in the figure the grinding material-grinding media mixture enters the tangential flow separation 21 from above and the processed product is guided through the separating element in the form of a cylindrical sieve 22 to the product outlet 15, i.e. the product passes through the sieve 22 from the inside to the outside. Part of the grinding material to be processed passes along the sieve 22 together with the grinding media 50 back into the grinding chamber.
  • Fig. 3a shows the embodiment also shown in Figures 2a to 2e, wherein in the figure the grinding material-grinding media mixture enters the tangential flow separation 21 from above and the processed product is guided through the separating element in the form of a cylindrical sieve 22 to the product outlet 15, i.e. the product passes through the sieve 22 from the inside to the outside. Part of the grinding material to be processed passes along the sieve 22 together with the
  • the grinding material can be fed from the right to a sieve 22', whereby a part of the finished ground material passes through the sieve 22' (from the outside to the inside) and is guided to the product outlet 15. The remaining part of the ground material is guided together with the grinding bodies 50 past the sieve 22' back into the grinding chamber.
  • the length of the sieve 22 or the separating device relative to the diameter of the separating element is preferably at least 0.25 and at most 10, particularly preferably 0.4 to 4.
  • the present invention results in a significantly reduced grinding media compression.
  • a simple, inexpensive and demountable sieve can be used, in which the length, diameter and type of separating element can be freely selected. No expensive materials are required and the deflector basket usually used in the prior art is omitted.
  • the inlet 23 of the grinding media return channel 20 is arranged radially on the outside in the grinding chamber 100. Since the grinding media are present in a higher concentration in this area during operation, a highly loaded grinding media-ground material suspension is thereby fed into the Grinding media return channel 20 is introduced, i.e. a mixture that contains a relatively large number of grinding media. If, on the other hand, the inlet of the grinding media return channel is arranged radially inward, i.e. in the direction of the rotor shaft, a low-loaded grinding media-ground material suspension is introduced into the grinding media return channel, which could make the grinding media separation by the tangential flow separation more efficient.
  • the grinding media return according to the present invention can also be subsequently installed in an existing agitator ball mill.
  • the invention also provides a channel piece that is designed for use as a grinding media return channel in an agitator ball mill, with one end of the channel piece being designed as an inlet connection into the grinding chamber of the agitator ball mill and the other end being designed as an outlet connection into the grinding chamber of the agitator mill.
  • a tangential flow separation is arranged in the channel piece, through which the grinding media can be separated from the material to be ground.

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

Abstract

L'invention concerne un broyeur à billes à agitateur avec séparation externe de milieux de broyage. Le broyeur à billes à agitateur comprend un récipient de broyage ayant une chambre de broyage, une entrée de produit pour introduire un produit de broyage dans la chambre de broyage, un agitateur qui est disposé de manière rotative dans la chambre de broyage (100) et a des éléments de broyage, et une pluralité de milieux de broyage disposés dans la chambre de broyage. La présente invention fournit un canal de retour de milieux de broyage ayant une entrée à travers laquelle le mélange de milieux de broyage/produit de broyage disposé dans la chambre de broyage pendant le fonctionnement peut entrer dans le canal de retour de milieux de broyage à partir de la chambre de broyage, et une sortie à travers laquelle le mélange de milieux de broyage/produit de broyage peut être renvoyé dans la chambre de broyage. Dans le canal de retour de milieux de broyage, un séparateur d'écoulement tangentiel est agencé, lequel comporte un appareil de séparation pour séparer les milieux de broyage du produit de broyage, et une sortie de produit pour évacuer le produit broyé depuis le broyeur à agitateur en aval de l'appareil de séparation. En outre, un appareil est agencé pour exercer une action de pompe pour permettre la circulation du mélange de milieux de broyage/produit de broyage à travers le canal de retour de milieux de broyage.
PCT/EP2024/056798 2023-03-31 2024-03-14 Broyeur à billes à agitateur avec séparation externe de milieux de broyage Ceased WO2024200024A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202480023462.7A CN120936439A (zh) 2023-03-31 2024-03-14 具有外部的研磨体分离部的搅拌球磨机
KR1020257031289A KR20250151500A (ko) 2023-03-31 2024-03-14 외부 분쇄체 분리부를 갖는 교반기 볼 밀
EP24710451.6A EP4460399A1 (fr) 2023-03-31 2024-03-14 Broyeur à billes à agitateur avec séparation externe de milieux de broyage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23165866.7 2023-03-31
EP23165866 2023-03-31

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WO2024200024A1 true WO2024200024A1 (fr) 2024-10-03

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EP (1) EP4460399A1 (fr)
KR (1) KR20250151500A (fr)
CN (1) CN120936439A (fr)
TW (1) TWI909382B (fr)
WO (1) WO2024200024A1 (fr)

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CN119951631A (zh) * 2025-04-11 2025-05-09 禾美思(山东)植物保护有限公司 一种农药悬浮剂研磨过滤装置及方法

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DE3536918A1 (de) 1984-10-19 1986-04-24 Gebrüder Bühler AG, Uzwil Verfahren und vorrichtung zum trennen eines fluidgemisches
DE4025987A1 (de) * 1990-08-16 1992-02-20 Buehler Ag Ruehrwerksmuehle
DE4432200C1 (de) 1994-09-09 1996-02-29 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
EP1992412B1 (fr) 2005-10-11 2010-02-03 Bühler Ag Moulin mélangeur agitateur
EP2178642B1 (fr) 2007-08-17 2010-12-15 Bühler AG Broyeur agitateur

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JP2007190447A (ja) * 2006-01-17 2007-08-02 Kotobuki Kogyo Kk 湿式撹拌ボールミルと製品スラリーの回収方法
CN215087708U (zh) * 2021-04-29 2021-12-10 杭州阿凡达光电科技有限公司 一种纳米粉体浆料分散研磨装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536918A1 (de) 1984-10-19 1986-04-24 Gebrüder Bühler AG, Uzwil Verfahren und vorrichtung zum trennen eines fluidgemisches
DE4025987A1 (de) * 1990-08-16 1992-02-20 Buehler Ag Ruehrwerksmuehle
DE4432200C1 (de) 1994-09-09 1996-02-29 Evv Vermoegensverwaltungs Gmbh Rührwerksmühle
EP1992412B1 (fr) 2005-10-11 2010-02-03 Bühler Ag Moulin mélangeur agitateur
EP2178642B1 (fr) 2007-08-17 2010-12-15 Bühler AG Broyeur agitateur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119951631A (zh) * 2025-04-11 2025-05-09 禾美思(山东)植物保护有限公司 一种农药悬浮剂研磨过滤装置及方法

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TW202440229A (zh) 2024-10-16
KR20250151500A (ko) 2025-10-21
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