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EP0158358A2 - Dispositif pour disperser ou émulsionner une quantité comprenant au moins deux produits - Google Patents

Dispositif pour disperser ou émulsionner une quantité comprenant au moins deux produits Download PDF

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Publication number
EP0158358A2
EP0158358A2 EP85104422A EP85104422A EP0158358A2 EP 0158358 A2 EP0158358 A2 EP 0158358A2 EP 85104422 A EP85104422 A EP 85104422A EP 85104422 A EP85104422 A EP 85104422A EP 0158358 A2 EP0158358 A2 EP 0158358A2
Authority
EP
European Patent Office
Prior art keywords
chamber
shear field
openings
feed
stator
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.)
Withdrawn
Application number
EP85104422A
Other languages
German (de)
English (en)
Other versions
EP0158358A3 (fr
Inventor
Hanspeter Seeger
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.)
Ystral GmbH Maschinenbau und Processtechnik
Original Assignee
Ystral GmbH Maschinenbau und Processtechnik
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 Ystral GmbH Maschinenbau und Processtechnik filed Critical Ystral GmbH Maschinenbau und Processtechnik
Publication of EP0158358A2 publication Critical patent/EP0158358A2/fr
Publication of EP0158358A3 publication Critical patent/EP0158358A3/fr
Withdrawn legal-status Critical Current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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • B01F27/2711—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with intermeshing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/912—Radial flow

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • a device of this type is described and shown in DE-OS 27 o2 183.
  • the known device is designed to first mix a quantity consisting of at least two products in a mixing chamber and then to disperse it in the area of tool rings which interact in a shearable manner.
  • the tool rings are formed on a rotor and a stator, the shear surfaces of which face one another and are adjacent with a small gap have openings for carrying out the quantity.
  • the known device is suitable for dispersing or emulsifying products which do not undergo a change in state, e.g. a change in viscosity, or react in some other way when they come into contact
  • the known type is not suitable for dispersing or emulsifying the latter products because, on the one hand, an uneven distribution of the product particles cannot be ruled out due to the reaction, and on the other hand a large number of particles cannot react at all and later as defects in the finished batch are available. It should be taken into account that the reactions take place with particle sizes of 1 micron generated in the shear field.
  • silicone oil tends to build up extremely high viscosities when working in a shear field. This is due to the Changing the property of a product makes uniform dispersion or emulsion difficult,
  • the invention is based on the object of designing a device of the known type in such a way that it is also possible to disperse or emulsify those products which tend to change state when they come into contact with one another.
  • the main advantage of the invention is that the products are fed in separate feed channels that only open directly into the shear field. A reaction of the product can therefore only take place in the shear field. As a result, the dispersion or emulsification is initiated before the products undergo a change in state due to mutual contact. The products can thus be finely crushed and distributed before this measure is significantly impeded due to a change in the state of the products.
  • the configuration according to the invention is advantageous for all dispersion processes in which a complete reaction of the phases involved is important, or for all emulsification processes in which one or both phases are very difficult to move in a free turbulence space, since they operate at the required high flow rates Build up viscosities that do not allow exact mixing and colloidal distribution of the previous phase.
  • DE-OS 3o o2 429 has already disclosed a dispersing device in which separate feed channels are provided for feeding different products. are seen, however, this known device does not have a shear field common to both products, into which the feed channels open directly. For the rest, it is the purpose of the known design to mix in toxic or fluidizing powders, gases or fluids so that they do not come into contact with the atmosphere.
  • the embodiment according to claim 3 is advantageous because the centrifugal force can be used to support the flow of the batch. It is also possible to have the feed channels open axially into a shear field extending transversely to the axis of rotation, but in such a configuration the above-described effect of the centrifugal force must be dispensed with.
  • feed channels are formed in the stator according to claim 4, further feed lines can be easily connected.
  • the embodiment according to claim 5 therefore creates considerably more favorable preconditions for the dispersion or emulsification because the small amounts of product entering the shear field per unit of time are introduced into the shear field in a mutual arrangement.
  • a rough pre-distribution is predetermined by the design according to the invention.
  • the embodiment according to claim 7 can be produced easily and inexpensively and it leads to a compact and space-saving design.
  • the chambers which have an enlarged volume in comparison with the feed channels and thus each form a reservoir, a metering in the area of the feed channels which is independent of the flow rate in possible feed lines (hoses) is ensured.
  • any number of products can be processed.
  • the embodiment contained in claim 9 is streamlined, which also has an advantageous effect on the metering in the region of the feed channels.
  • the desired fine distribution is improved. This is due to the fact that, due to the different cross-sections of the openings, the product flow is uneven and therefore an intimate mixing or fine distribution takes place.
  • the embodiment according to claim 11 results in simple components that can be manufactured easily and inexpensively and also enable a compact, space-saving design.
  • the device generally designated 1 in FIG. 1 consists of a housing or stator 2, a rotor 5 which can be rotated in the stator 2 about an axis of rotation 3 by means of a motor 4, and feed channels 6, 7 which are separate from one another and which are still to be described serve to supply two different products to be dispersed or emulsified.
  • the rotor 5 is pot-shaped and has a flange part 8, from the circumference of which a hollow cylindrical wall 9 projects axially on the side facing away from the motor 4.
  • the wall 9 encloses with movement play in an annular groove 11 of the stator 2, the movement play being formed by internal and external gaps s is.
  • the stator 2 and the hollow cylindrical wall 9 of the rotor 5 have a plurality of openings 12, 13 distributed on the circumference, preferably of rectangular cross section, which extend radially and also lie radially one above the other, so that when the rotor 5 is rotated, the openings 12, 13 alternately and to overlap for a short period of time.
  • the mutually facing surfaces of the stator 2 and the rotor 5 form with their edges 19 in the area of the perforation edges or the mouth edges an inner shear field 21 and an outer shear field 22 which have a cylindrical shape.
  • the products to be emulsified or dispersed are fed through nozzles 23, 24 to which supply lines, not shown, e.g. Hoses can be connected.
  • the feed channel 6 is formed by a central, first chamber 25 of the stator 2, from which the associated connecting channels 15 extend radially and to which the axially extending connection piece 23 is assigned.
  • the feed channel 7 is formed by a second chamber 26 which extends in a ring around the first chamber 25 and to which the radial connection piece 24 is connected.
  • the connecting channels 16 extending from the second chamber 26 initially extend axially and then radially, as already described.
  • the two products which are identified by small circles or by dots for the purpose of mutual distinction, are separated from one another during operation of the device by the connecting pieces 23, 24, by the supply channels 6, 7 (chambers 25, 26) and by the connecting channels 15, 16 separately, first led into the inner shear field 21. Since the rotor 5 rotates relatively quickly, the substances in the products are deformed, crushed and intimately mixed and distributed with one another. The emulsified or dispersed batch passes radially through the openings 12 of the rotor 5 into the outer shear field 22, where the batch is freely distributed a second time and intimately mixed with one another.
  • the shear fields 21, 22 or the annular gaps s thus represent emulsification or dispersion zones in which there is an optimal fine mixing and fine distribution of the product dimensions.
  • the annular gaps s are very small and designed so that only layer thicknesses of up to approximately 0.1 mm occur. Because of this configuration, the shear rate can be dimensioned correspondingly low, which leads to an enormous saving in energy and at the same time to a safe and fine emulsification or dispersion.
  • the product particles are shown mixed together as small circles and dots (FIG. 1).
  • the batch exits in the area of an annular chamber 28 of the stator 2 from the openings 13, which represents a store accommodating the batch, in which the batch can flow undisturbed.
  • From the ring chamber 28 leads radially from an outlet nozzle 29, which can have a flange 31 at its free end, which can advantageously be used to fasten the device 1.
  • Corresponding fastening screws are indicated by dash-dotted lines.
  • the device 1 is particularly suitable for dispersing or emulsifying those products which undergo a change in state when they come into contact with one another, e.g. react chemically or change their viscosity.
  • a major advantage of the device 1 is that the products are fed in separate feed channels 6, 7 and only come into contact with one another in the emulsification or dispersion zone 27 or in the shear field 21. During the entry into the shear field 21, however, the substances are already deformed, crushed and intimately mixed with one another and finely distributed.-This means that a change in the state of the substances does not take place before the emulsification or dispersion and therefore the change in state does not adversely affect the Mixing affects.
  • the advantage that products which react chemically when they come into contact with one another is that the chemical reaction can take place in the area of fine and finely divided substances and therefore a complete reaction takes place.
  • additional feed lines in essentially the same relationship to the first and second feed lines 6, 7, in particular their chambers 25, 26 and their openings 17, 18 in the shear field 21, more than two products can also be processed in the same way.
  • the rotor 5 and the stator 2 can also have a plurality of rings so that a plurality of shear fields are flowed through in succession.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Crushing And Grinding (AREA)
EP85104422A 1984-04-11 1985-04-11 Dispositif pour disperser ou émulsionner une quantité comprenant au moins deux produits Withdrawn EP0158358A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3413675A DE3413675C2 (de) 1984-04-11 1984-04-11 Vorrichtung zum Dispergieren oder Emulgieren mindestens zweier Medien
DE3413675 1984-04-11

Publications (2)

Publication Number Publication Date
EP0158358A2 true EP0158358A2 (fr) 1985-10-16
EP0158358A3 EP0158358A3 (fr) 1988-07-20

Family

ID=6233301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104422A Withdrawn EP0158358A3 (fr) 1984-04-11 1985-04-11 Dispositif pour disperser ou émulsionner une quantité comprenant au moins deux produits

Country Status (3)

Country Link
US (1) US4687339A (fr)
EP (1) EP0158358A3 (fr)
DE (1) DE3413675C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564611A4 (fr) * 1991-10-09 1994-03-18 Acrison Inc Appareil servant a melanger des fluides et procede de melange.

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118870A1 (de) * 1991-06-07 1992-12-17 Ystral Gmbh Maschinenbau Und P Vorrichtung zum benetzen und dispergieren von pulvern in fluessigkeiten
WO1996003203A1 (fr) * 1994-07-27 1996-02-08 Aktsionernoe Obschestvo Otkrytogo Tipa 'transfer' Dispositif de melange de fluides
JP3439860B2 (ja) * 1995-01-24 2003-08-25 東レ・ダウコーニング・シリコーン株式会社 オルガノポリシロキサンエマルジョンの連続的製造方法
RU2150318C1 (ru) * 1998-11-10 2000-06-10 Тамбовский государственный технический университет Роторный аппарат
US6241472B1 (en) * 1999-03-22 2001-06-05 Charles Ross & Son Company High shear rotors and stators for mixers and emulsifiers
RU2149680C1 (ru) * 1999-03-24 2000-05-27 Чиргин Сергей Георгиевич Устройство для растворения, эмульгирования и диспергирования различных материалов
RU2158629C1 (ru) * 1999-04-27 2000-11-10 Закрытое акционерное общество "Катализаторная компания" Роторно-диспергирующий аппарат
RU2165292C1 (ru) * 1999-09-06 2001-04-20 Тамбовский государственный технический университет Роторный аппарат
RU2165787C1 (ru) * 1999-09-06 2001-04-27 Тамбовский государственный технический университет Роторный аппарат
US8450539B2 (en) 2008-11-07 2013-05-28 H R D Corporation High shear process for producing micronized waxes
RU2398624C2 (ru) * 2008-11-20 2010-09-10 Государственное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" (ГОУ ВПО "ТГТУ") Роторный аппарат
RU2442640C1 (ru) * 2010-07-19 2012-02-20 Государственное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" (ГОУ ВПО ТГТУ) Роторный аппарат
RU2442641C1 (ru) * 2010-07-19 2012-02-20 Государственное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" (ГОУ ВПО ТГТУ) Устройство для физико-химической обработки жидкой среды
JP2011147936A (ja) * 2010-09-29 2011-08-04 Sintokogio Ltd 剪断式分散装置、循環式分散システム及び循環式分散方法
CA2903467A1 (fr) * 2013-03-08 2014-09-12 H R D Corporation Cires predispersees pour forage petrolier et gazier
DE202014006902U1 (de) 2014-08-29 2014-09-16 Schulz Farben- Und Lackfabrik Gmbh Schutzeinrichtung für eine Dispergiervorrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685436A (en) * 1950-08-31 1954-08-03 Goodrich Co B F Apparatus for foaming liquids
FR1153206A (fr) * 1956-05-15 1958-03-04 Separation Sa Franc Pour La Perfectionnements aux mélangeurs, émulseurs, homogénéiseurs, etc.
US3194540A (en) * 1961-07-28 1965-07-13 Liberty Nat Bank And Trust Com Homogenizing apparatus
US3195867A (en) * 1962-01-23 1965-07-20 Liberty Nat Bank And Trust Com Homogenizing apparatus
US3183099A (en) * 1962-11-09 1965-05-11 Thomas H Schultz Preparation of flavor compositions
DE2363888A1 (de) * 1973-12-21 1975-07-03 Auer Hans Heinrich Vorrichtung mit rotierenden werkzeugen zur kontinuierlichen behandlung von stoffen in fliessfaehiger form
DE7514424U (de) * 1975-05-05 1976-01-29 Sieke, Helmut, Dipl.-Ing., 3001 Wuelferode Misch- und/oder foerdervorrichtung fuer fliessfaehiges gut
SE445052C (sv) * 1980-03-13 1987-11-09 Sunds Defibrator Sett och anordning for kontinuerlig inblandning av gas- och/eller vetskeformiga behandlingsmedel i en massasuspension
DE3301043C2 (de) * 1982-02-09 1986-10-23 Akzo Gmbh, 5600 Wuppertal Mischvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564611A4 (fr) * 1991-10-09 1994-03-18 Acrison Inc Appareil servant a melanger des fluides et procede de melange.

Also Published As

Publication number Publication date
DE3413675C2 (de) 1986-06-26
DE3413675A1 (de) 1985-11-21
EP0158358A3 (fr) 1988-07-20
US4687339A (en) 1987-08-18

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