EP0850106B1 - Dispergiervorrichtung und dispergierverfahren - Google Patents

Dispergiervorrichtung und dispergierverfahren Download PDF

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Publication number
EP0850106B1
EP0850106B1 EP96938007A EP96938007A EP0850106B1 EP 0850106 B1 EP0850106 B1 EP 0850106B1 EP 96938007 A EP96938007 A EP 96938007A EP 96938007 A EP96938007 A EP 96938007A EP 0850106 B1 EP0850106 B1 EP 0850106B1
Authority
EP
European Patent Office
Prior art keywords
ball mill
shaft
dispersion
dispersed
dissolver
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
EP96938007A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0850106A1 (de
Inventor
Hermann Getzmann
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to SI9630185T priority Critical patent/SI0850106T1/xx
Publication of EP0850106A1 publication Critical patent/EP0850106A1/de
Application granted granted Critical
Publication of EP0850106B1 publication Critical patent/EP0850106B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
    • B01F35/1453—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids by means of jets of fluid, e.g. air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/83—Mixing plants specially adapted for mixing in combination with disintegrating operations
    • B01F33/8305—Devices with one shaft, provided with mixing and milling tools, e.g. using balls or rollers as working tools; Devices with two or more tools rotating about the same axis
    • 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
    • B02C17/168—Mills in which a fixed container houses stirring means tumbling the charge with a basket media milling device arranged in or on the container, involving therein a circulatory flow of the material to be milled

Definitions

  • the invention relates to a dispersing device from a container for receiving and processing a product to be dispersed, a flow generating device which can be driven by a first shaft, one containing a grinding medium Grinding device, which has a housing with openings, by which the dispersed material due to by the flow generating device generated flow can pass through, and one disposed in and relative to the housing rotatable stirring tool, the housing of the grinding device is formed in the form of an annular channel, which is a central Has hole, and the shaft through the central hole of the ring channel runs.
  • the invention also relates to a method for pre- and fine dispersion of a fine and very fine, solid in a dispersant in a container to take up the dispersed material, the predispersion by means of a dissolver and the fine dispersion by means of an agitator ball mill is carried out.
  • EP 526 699 A1 describes a dispersing device at the beginning known type known.
  • a flow generating device In order to allow the grinding medium to circulate through the sieve basket, drives the drive shaft next to the mixing tool also a flow generating device. This flow generating device must be outside the strainer to ensure sufficient flow.
  • the drive shaft penetrates the strainer basket. At the penetration point a separation and sealing system is installed, that prevents the grinding media from escaping from the sieve.
  • the central arrangement of the flow generating device brings clear advantages in terms of flow technology, because thus a uniform flow through the entire container is ensured.
  • the dispersed material must be predispersed.
  • Pre-dispersion is preferably carried out with a dissolver disc, since, in particular in the case of agglomerates which are difficult to disperse, the in the further process the use of the grinding device require optimal predispersion from economical Is essential.
  • An insufficiently pre-dispersed product not only requires longer terms from the standstill the technology known grinder, but often did not achieve the desired subtleties.
  • Omissions or Predispersion usually cannot be balanced by other systems. Especially because because insufficiently pre-dispersed products in the further Use the grinder to plug the holes of the strainer basket, which causes the circulation through the Sieve basket is difficult or even completely prevented.
  • the object of the present invention is now that of known dispersing device such to develop further that the process process is considerably simplified and the cleaning effort is reduced.
  • this object is achieved in that the Grinding device opposite the flow generating device is adjustable in height and that the grinding device by means of Height adjustment can be immersed in and out of the dispersed material this is completely removable again while the flow generating device remains in the dispersed material.
  • the flow generating device usually has means to disperse on.
  • Dispersing device has the housing of the grinding device an open profile, and the agitator is over at least a connecting bridge that runs through the open profile, connectable to the shaft.
  • the dispersing device Due to the configuration of the dispersing device according to the invention can the drive shaft for the flow generating device centrally along the rotation axis of the screen basket run. This is the fluidic advantage of the Maintaining the central arrangement of the flow generating device.
  • the use of the separation and sealing system can be complete to be dispensed with, since the housing of the grinding device is not penetrated by the wave. Cleaning the grinder is much easier and faster to do.
  • Dispersing device has the housing of the grinding device an open profile, the mixing tool is through a second shaft can be driven and the stirrer is over at least one connecting bridge through the open profile runs, connectable to another wave.
  • the further shaft is preferably designed as a hollow shaft, which encloses the shaft of the flow generating device.
  • the outer hollow shaft stirring tool arranged in the housing of the grinding device in a particularly simple way regardless of the speed the drive shaft of the flow generating device drive. Both waves can be used simultaneously or each separately are driven by each other or even in the opposite Sense of rotation.
  • there is also a kinematic one Reversal possible within the grinder i.e. that the entire grinding device relative to the fixed stirring tool is rotatable.
  • the mixing tool depends on the dispersing task can be designed as required. It can e.g. as an annular disc, Annular ring disk, slotted disk, pins, etc. educated his.
  • the agitator preferably has at least one coaxial with the Ring channel running circular washer, which is in the ring channel extends.
  • the stirrer thus ensures a continuous Movement of the grinding medium arranged in the housing.
  • the flow generating device has means for dispersing on. It is particularly advantageous if these means are designed for dispersing as a dissolver disc.
  • the Dissolver disc then generates the one for operation the dispersing device necessary flow and also takes predispersion of the grinding medium.
  • the dissolver disc fulfills a particularly important task for dispersion, namely the uniform product circulation down to the Edge zone of the mixing container.
  • a dissolver disc fulfills that Dispersion tasks, i.e. the dissolving of agglomerates and the wetting of the primary particles in the liquid phase, in a particularly economical way, since the dispersion is carried out significantly faster than within the grinding device.
  • the dispersing device according to the invention is preferably so designed that the grinding device is adjustable in height and these can be immersed in the dispersed material by means of the height adjustment and can be completely removed from it.
  • the individual process steps of the Pre- and fine dispersion completely separate from each other perform without the substances to be dispersed need to be removed from the container or a change in Mixing tools are necessary.
  • a change between predispersion and fine dispersion can be particularly quick and economical be carried out. Separate containers and drive devices for a dissolver and an agitator ball mill omitted.
  • Both can in the dispersing device according to the invention Process, predispersion using the dissolver disc and the fine dispersion by means of the agitator ball mill, in Circulation procedures are carried out.
  • the procedures can be carried out separately or simultaneously.
  • the latter variant is in the dispersing device according to the invention particularly simple and economical to implement, because a change of the mixing device or container between the pre-dispersion and the subsequent fine dispersion omitted in the grinding device.
  • Both shafts are preferably driven by one and the same motor driven, which significantly simplifies the operational structure becomes. Suitable are then above the dispersing device Gear means are provided that allow the two Drive shafts separately or in parallel.
  • the annular channel has a rectangular dispersing device Cross section on.
  • Cross section On.
  • suitable cross-sectional shapes of the ring channel are conceivable, such as B. a round cross-section.
  • the cross-sectional shape of the Ring channel depends essentially on the required Flow characteristics.
  • Fig. 1 there is the inventive Dispersing device consisting of an essentially cylindrical, double-walled container 1 closed with a lid, a dissolver 2, an agitator ball mill 3 and more Cleaning nozzles 4.
  • the dissolver consists of a cylindrical shaft 21 which has a dissolver disk 22 at its lower end.
  • the dissolver disc is along its perimeter with several on the Circular surface alternately curved up and down Teeth 23 equipped.
  • the agitator ball mill 3 consists of a perforated sieve Housing 31 in which the grinding balls 32 are held.
  • the housing 31 is on its upper side with a circumferential Provide opening 33.
  • the housing 31 is shown in the Single-walled example, but can alternatively also double-walled or in another suitable manner be executed.
  • the housing forms a toroidal ring channel with a central hole 34.
  • the shaft 21 of the dissolver 2 runs through this hole 34.
  • Inside the ring channel are two circular washers 35 coaxial with the ring channel.
  • the annular disks 35 are interconnected by a web 36 connected.
  • the web 36 also connects the annular disks 35 with the hollow shaft 37.
  • the hollow shaft 37 becomes like the shaft 21 driven by a motor, not shown.
  • the Hollow shaft 37 and shaft 21 run coaxially with one another, wherein the shaft 21 runs inside the hollow shaft 37.
  • the container 1 is on its wall with several cleaning nozzles 4 provided.
  • Each cleaning nozzle 4 consists of a spray head 41, a hollow cylinder attached to the wall of the container 1 42 and a piston 43 guided in the hollow cylinder 42, the at its end facing the center of the container 1 Has spray head 41.
  • the ball mill 3 is held on its peripheral side by rods 39, by means of which it is represented by a not shown Drive device can be adjusted in height.
  • the Rods 39 are attached such that they adjust the height the agitator ball mill, but the rotation the annular discs 35 do not hinder.
  • agitator ball mill 3 In Fig. 1, the agitator ball mill 3 is in its upper Position so that this is not in connection with the dispersed material 5 is coming.
  • the hollow shaft 37 is not in this position driven.
  • the predispersion is only due to the rotation of the dissolver 2 causes the height can be adjusted to the appropriate process conditions guarantee. In this way, the pre-dispersion set the desired "donut effect".
  • the Circulation of the dispersed material 5 (represented by arrows) is not hindered by the agitator ball mill 3, so that efficient and quick predispersion by the dissolver 2 is carried out.
  • Fig. 2 the agitator ball mill 3 is in its lowered Position shown.
  • the agitator ball mill 3 will inside the container 1 through the rods 39 with the hollow shaft 37 adjusted in height and sunk into the dispersed material 5.
  • the agitator ball mill 3 is complete in the dispersed material 5 immersed, and the annular discs 35 are through the hollow shaft 37 in relation to the housing 31 of the agitator ball mill 3 set in rotation.
  • the annular discs 35 set the grinding balls 32 in motion, so that the grinding process is carried out within the agitator ball mill 3.
  • the dissolver 2 continues to provide circulation (using arrows shown) of the dispersed material 5, but is now preferred also a circulation through the perforated sieve Housing of the agitator ball mill 3 causes. This will make one Fine dispersion by the agitator ball mill 3 in the circulation process accomplished.
  • FIG. 3 shows the cleaning of the dispersing device according to the invention after pumping out the dispersed material a suitable pumping device, not shown, is shown.
  • a suitable pumping device for cleaning, run along the wall of the container 1 arranged spray heads 41 in the interior of the container inserted. This is done by placing the pistons 43 inside the hollow cylinder 42 axially along its longitudinal axis Center of the container 1 to be moved.
  • the pistons 43 are hollow on the inside and feed the cleaning liquid through Pressure generating means, not shown, for the spray heads 41.
  • the spray heads 41 spray cleaning agents through appropriately designed openings in the interior of the container 1 a. In this way, the walls and fixtures sprayed, and it comes to in the further course Fill the container 1 with the cleaning liquid.
  • the adhering to the dissolver 2 and the agitator ball mill 3 Particles of the dispersed material 5 are caused by the cleaning agent detached from the dispersing device. It forms a mixture of detergent and dispersant 5 am Bottom of the container 1, here called cleaning liquid 6 becomes.
  • the dissolver 2 and the agitator ball mill 3 are rotated in the cleaning liquid 6 as before, but this time to clean the components.
  • the central hole 34 the agitator ball mill 3 increases - compared to State of the art - the surface of the housing through which the cleaning liquid 6 into the interior of the agitator ball mill 3 can enter or pass through this.
  • the Cleaning process is through the design of the agitator ball mill 3 thus accelerated with a central hole 34.
  • the cleaning nozzles 4 can also be designed such that this during the spraying process into the interior of the hole 34 Agitator ball mill 3 are enough and so spraying the inner Perform periphery of the agitator ball mill 3, or such be arranged so that they alternate the outer and the inner Spray the periphery of the agitator ball mill 3. It can suitable holes can also be formed in the hollow shaft 21, through which a cleaning agent is sprayed.
  • the cleaning liquid 6 is pumped out, the cleaning nozzles 4 are pulled out of the container 1 and the agitator ball mill 3 is driven by the rod 39 move to its upper position.
  • the dispersing device is ready for use again.
  • FIG. 4 is an alternative embodiment of the invention Dispersing device shown.
  • One Shaft 44 drives both the ring washers 35 and dissolver disk 22 provided at its lower end.
  • This Embodiment represents the simplest and cheapest Realization of the dispersing device according to the invention.
  • the exemplary embodiments shown here all relate to Dispersing devices in which the housing is stationary and the agitator device is rotatable relative to this housing is arranged. It is also within the scope of the invention that Reverse kinematically training device. At such a dispersing device is the flow generating device trained stationary while the housing rotated relative to the stationary agitator device becomes.
  • the drive of the housing of the agitator device and / or the flow generating device takes place via suitable, drive means known to those skilled in the art, for example mechanical, electrical or magnetic drives.
  • a Dissolver and an agitator ball mill in one device combined.
  • the advantages of the state of the art central in the container arranged flow generating device maintained.
  • penetration the agitator ball mill through the drive shaft of the dissolver avoided.
  • the change from pre-dispersion to fine dispersion simplified and accelerated.
  • an arrangement of both devices as a completely closed system minimum space feasible. Solvents can Therefore, change of procedure does not escape.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
EP96938007A 1995-09-09 1996-09-05 Dispergiervorrichtung und dispergierverfahren Expired - Lifetime EP0850106B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630185T SI0850106T1 (en) 1995-09-09 1996-09-05 Dispersing device and process

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19533369 1995-09-09
DE19533369A DE19533369C2 (de) 1995-09-09 1995-09-09 Dispergiervorrichtung und Dispergierverfahren
PCT/DE1996/001695 WO1997009115A2 (de) 1995-09-09 1996-09-05 Dispergiervorrichtung und dispergierverfahren

Publications (2)

Publication Number Publication Date
EP0850106A1 EP0850106A1 (de) 1998-07-01
EP0850106B1 true EP0850106B1 (de) 2000-03-29

Family

ID=7771701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96938007A Expired - Lifetime EP0850106B1 (de) 1995-09-09 1996-09-05 Dispergiervorrichtung und dispergierverfahren

Country Status (11)

Country Link
US (1) US5967430A (pt)
EP (1) EP0850106B1 (pt)
JP (1) JP2949373B2 (pt)
AT (1) ATE191159T1 (pt)
DE (2) DE19533369C2 (pt)
DK (1) DK0850106T3 (pt)
ES (1) ES2144782T3 (pt)
GR (1) GR3033701T3 (pt)
PT (1) PT850106E (pt)
SI (1) SI0850106T1 (pt)
WO (1) WO1997009115A2 (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6830816B2 (en) 2001-03-30 2004-12-14 Degussa Ag Highly filled, pasty, composition containing silicoorganic nanohybrid and/or microhybrid capsules for scratch-resistant and/or abrasion-resistant coatings
WO2006018168A1 (en) * 2004-08-19 2006-02-23 Vma-Getzmann Gmbh Dispersing apparatus

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29819508U1 (de) 1998-11-02 1999-01-14 VMA-GETZMANN GmbH, 51580 Reichshof Dispergiervorrichtung
AU2002239504A1 (en) * 2000-12-06 2002-06-18 Pharmacia Corporation Laboratory scale milling process
JP4703002B2 (ja) * 2000-12-28 2011-06-15 ケイミュー株式会社 加水混合機
ES2309177T3 (es) * 2001-06-05 2008-12-16 Elan Pharma International Limited Sistema y metodo para moler materiales.
DE202008010125U1 (de) 2008-07-29 2009-12-03 Vma-Getzmann Gmbh Verfahrenstechnik Dispergiervorrichtung mit Abstreifer
DE102008063718B4 (de) * 2008-12-19 2010-09-16 Kba-Metronic Aktiengesellschaft Tintentank mit Mahlwerk
CN101905131B (zh) * 2010-07-27 2012-07-25 广州市合诚化学有限公司 用于混合不同堆积密度物料的变频低速混合机及方法
RU2563014C1 (ru) * 2014-07-08 2015-09-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тихоокеанский государственный университет" Смеситель
JP5886929B1 (ja) * 2014-10-23 2016-03-16 佐竹化学機械工業株式会社 撹拌装置
CN107963622B (zh) * 2017-12-14 2020-08-11 宁波埃氪新材料科技有限公司 一种碳纳米管分散设备
CN108704518A (zh) * 2018-05-30 2018-10-26 王胜梅 一种带钢球搅动的涂料生产用搅拌混合设备
CN108905709A (zh) * 2018-07-20 2018-11-30 濉溪县瑞智康农机科技有限公司 印刷喷粉的搅拌装置
CN109550451B (zh) * 2018-09-30 2021-03-12 中国水利水电科学研究院 一种节能高效的脱硫用制浆装置
CN112536097B (zh) * 2020-11-20 2022-09-23 山东咏禾食品有限公司 一种面粉加工方法
CN113797803A (zh) * 2021-09-23 2021-12-17 深圳宝峰印刷有限公司 不易氧化变色的绿色环保印刷油墨、制备方法及装置
CN114318949B (zh) * 2021-11-29 2022-07-15 浙江五星纸业有限公司 一种应用于食品包装的淋膜纸及该纸的生产工艺
CN116036909B (zh) * 2022-07-19 2023-08-29 海南卓科制药有限公司 一种酮咯酸氨丁三醇注射液配置装置及制备工艺
SE2251360A1 (en) * 2022-11-21 2024-04-23 Paebbl Ab Milling high temperature and high pressure reactor

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JPH07106305B2 (ja) * 1991-08-06 1995-11-15 株式会社井上製作所 媒体分散装置
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JP2575498Y2 (ja) * 1993-01-08 1998-06-25 三井鉱山株式会社 粉砕機の構造
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US5662279A (en) * 1995-12-05 1997-09-02 Eastman Kodak Company Process for milling and media separation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6830816B2 (en) 2001-03-30 2004-12-14 Degussa Ag Highly filled, pasty, composition containing silicoorganic nanohybrid and/or microhybrid capsules for scratch-resistant and/or abrasion-resistant coatings
WO2006018168A1 (en) * 2004-08-19 2006-02-23 Vma-Getzmann Gmbh Dispersing apparatus

Also Published As

Publication number Publication date
DE59604847D1 (de) 2000-05-04
DE19533369C2 (de) 1998-06-10
GR3033701T3 (en) 2000-10-31
DK0850106T3 (da) 2000-09-04
PT850106E (pt) 2000-08-31
ATE191159T1 (de) 2000-04-15
US5967430A (en) 1999-10-19
ES2144782T3 (es) 2000-06-16
DE19533369A1 (de) 1997-03-13
WO1997009115A3 (de) 1997-04-03
JPH11501573A (ja) 1999-02-09
SI0850106T1 (en) 2000-08-31
WO1997009115A2 (de) 1997-03-13
EP0850106A1 (de) 1998-07-01
JP2949373B2 (ja) 1999-09-13

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