EP1638675A1 - Disperseur - Google Patents

Disperseur

Info

Publication number
EP1638675A1
EP1638675A1 EP04730991A EP04730991A EP1638675A1 EP 1638675 A1 EP1638675 A1 EP 1638675A1 EP 04730991 A EP04730991 A EP 04730991A EP 04730991 A EP04730991 A EP 04730991A EP 1638675 A1 EP1638675 A1 EP 1638675A1
Authority
EP
European Patent Office
Prior art keywords
nozzles
nozzle
inlet
outlet
range
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.)
Granted
Application number
EP04730991A
Other languages
German (de)
English (en)
Other versions
EP1638675B1 (fr
Inventor
Marko Buchholz
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.)
EKATO Process Technologies GmbH
Original Assignee
EKATO Process Technologies 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
Application filed by EKATO Process Technologies GmbH filed Critical EKATO Process Technologies GmbH
Publication of EP1638675A1 publication Critical patent/EP1638675A1/fr
Application granted granted Critical
Publication of EP1638675B1 publication Critical patent/EP1638675B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B01F25/105—Mixing heads, i.e. compact mixing units or modules, using mixing valves for feeding and mixing at least two components
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/23—Mixing by intersecting jets
    • 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
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/27—Mixing by jetting components into a conduit for agitating its contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2215/00—Auxiliary or complementary information in relation with mixing
    • B01F2215/04—Technical information in relation with mixing
    • B01F2215/0413—Numerical information
    • B01F2215/0418—Geometrical information
    • B01F2215/0422—Numerical values of angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2215/00—Auxiliary or complementary information in relation with mixing
    • B01F2215/04—Technical information in relation with mixing
    • B01F2215/0413—Numerical information
    • B01F2215/0418—Geometrical information
    • B01F2215/0431—Numerical size values, e.g. diameter of a hole or conduit, area, volume, length, width, or ratios thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2215/00—Auxiliary or complementary information in relation with mixing
    • B01F2215/04—Technical information in relation with mixing
    • B01F2215/0413—Numerical information
    • B01F2215/0436—Operational information
    • B01F2215/0468—Numerical pressure values
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87249—Multiple inlet with multiple outlet

Definitions

  • the invention relates to a dispersing device, in particular for dispersing, homogenizing and mixing fluids
  • Multi-component systems as well as for dispersing, homogenizing, mixing and micronizing solids.
  • Dispersing devices of this type are usually used in conjunction with high-pressure homogenizers.
  • the invention aims to provide a dispersing device of the generic type in which the effectiveness in dispersing, homogenizing, mixing or micronizing is improved compared to previously known devices of this type.
  • a dispersing device is equipped with at least one pair of inlet nozzles and one pair of outlet nozzles.
  • the diameter or slot width of the outlet nozzles is preferably always larger than the diameter or slot width of the inlet nozzles.
  • the diameter or the slot width of the inlet nozzles is expediently in the range from approximately 0.1 to 5.0 mm, and preferably in the range from approximately 0.2 to 0.6 mm.
  • the diameter or the slot width of the outlet nozzles is expediently in the range from approximately 0.1 to 10.0 mm, and preferably in the range from approximately 0.2 to 2 mm.
  • both the inlet nozzles and the outlet nozzles can each be arranged in an ideal case in a range of approximately 10 ° to 350 ° relative to one another, an ideal case in the range of approximately 45 ° to 315 ° being suitable, and an angle a of essentially 180 ° is preferred.
  • the interior of the nozzle body can be circular, rectangular or elliptical in cross section.
  • Each of the inlet nozzles and the outlet nozzles is expediently provided with a nozzle holder in which the actual nozzle is received.
  • the nozzle holder is preferably equipped with a conical inlet and / or a conical outlet.
  • the bore of the nozzle can be circular, elliptical or rectangular.
  • the inlet nozzles of a pair of nozzles can be arranged offset parallel to one another.
  • the inlet nozzles can be arranged pivoted at an angle ⁇ to the longitudinal central axis of the dispersing device, such that the central axis of the respective inlet nozzle runs eccentrically to the center of the dispersing device.
  • the angle ⁇ can be in the range from about 0 ° to 80 ° with respect to the longitudinal central axis of the dispersing device.
  • the nozzles are preferably made of a particularly wear-resistant material, such as sapphire, diamond, silicon carbide or ceramic.
  • a particularly wear-resistant material such as sapphire, diamond, silicon carbide or ceramic.
  • FIG. 5 and 6 schematically show examples of the installation of the inlet nozzles in the nozzle body.
  • the dispersing device 10 comprises a nozzle body 12, preferably made of stainless steel, with a square or rectangular cross section. However, as shown in FIG. 3, the cross section can also be circular.
  • inlet nozzles generally designated 14, and two outlet nozzles, generally designated 16 are inserted into the nozzle body 12.
  • the nozzles 14, 16 are connected to a central interior 20 via corresponding bores 18.
  • the interior 20 can have a circular, square, rectangular or elliptical cross section.
  • the inlet nozzles 14 and the outlet nozzles 16 are always designed in pairs, at least one pair of inlet nozzles 14 and one pair of outlet nozzles 16 being provided. However, an odd number of inlet nozzles and outlet nozzles, for example 3, 5 or 7, can also be provided. As FIG.
  • each of the inlet nozzles and the outlet nozzles 14, 16 comprises a nozzle head 22 which, provided with an external thread and is screwed into a threaded bore 42 formed in the nozzle body 12.
  • Each nozzle head 22 is provided with a longitudinal bore 24 for the supply or discharge of the substances to be treated.
  • a nozzle holder 26 is arranged, which is connected to the nozzle head 22 at the outlet nozzles 16, for example by means of corresponding threads.
  • the nozzle holder 26 is inserted into the respective bore 18 by means of a short cylindrical collar to be described with reference to FIG. 2.
  • Each of the threaded holes 42 is like. shown, provided with a pressure relief bore 28.
  • Figure 2 shows schematically in section the nozzle holder 26, in which a nozzle 30 is received.
  • the direction of flow through the nozzle 30 is the same for the inlet nozzles as for the outlet nozzles and is shown by the arrow P in FIG.
  • the nozzle holder 26 is provided with an inlet 32 to the nozzle 30 and an outlet 34 from the nozzle 30 as well as a longitudinal bore 36 running through the entire nozzle holder 26.
  • the cross section of the inlet 32 and the cross section of the outlet 34 is preferably conical, but can also be cylindrical.
  • the conical design of inlet 32 and outlet 34 leads to a reduction in the flow loss in the inlet and outlet of the nozzles.
  • the conical outlet at the inlet nozzles 14 causes a forced expansion of the fluid jet, which has a positive effect on the development of turbulence in the nozzle body 12.
  • the cross section of the nozzle 30 can be circular, slit-shaped or rectangular, the diameter or the slot width in the inlet nozzle 14/30 being in the range from approximately 0.1 to 5 mm, and preferably in the range from 0.2 to 0.6 mm lies. In the case of slot-shaped or rectangular nozzles, these dimensions refer to the smaller value, ie to the slot width or slot height.
  • the length of the slit-shaped or rectangular nozzle 30 can range from 1 to about 50 mm.
  • the diameter or the slot width is in the range from approximately 0.1 to 10.0 mm, and preferably in the range from approximately 0.2 to 2 mm.
  • these dimensions refer to the smaller value for the slot-shaped or rectangular nozzle, i.e. to the slot width or slot height.
  • the length of the slit-shaped or rectangular nozzle is, for example, in the range from 1 to about 50 mm.
  • the diameter or the slot width or generally the nozzle cross section is always larger in the outlet nozzle 30/16 than in the inlet nozzle 30/14.
  • the diameter or the slot width of the outlet nozzle 30/16 is selected such that approximately 1 to less than 50% of the total pressure drop occurs via the outlet of the medium from the dispersing device.
  • the nozzle holder 26 has a cylindrical collar 44 at its end facing away from the nozzle 30, which, as shown in FIGS. 1 and 4, is inserted into the bores 18 at the inlet nozzles 14, while it is inserted at the outlet nozzles 16 is accommodated in the nozzle head 22.
  • the nozzle 30 is made of a wear-resistant material such as sapphire, diamond, silicon carbide or ceramic or similar materials.
  • the nozzle body 12 can, as for example in the embodiment according to FIG. 1, have a square cross section or, as in the embodiment according to FIG. 3, a circular cross section. In this latter embodiment, the inlet nozzles 14 and the outlet nozzles 16 are introduced into the nozzle body 12 in a circle.
  • the nozzle body 12 is only shown schematically, furthermore only the nozzle holders 26 of the inlet nozzles 14 are shown.
  • the angle a between the central axes of the two inlet nozzles 14 can be in the range from approximately 10 ° to 350 °, advantageously in the range from approximately 45 ° to 315 °, and is preferably 180 °.
  • the corresponding angle between the central axes of the two outlet nozzles 16 can also be in a range from approximately 10 ° to 350 °, advantageously in a range from approximately 45 ° to 315 °, and is preferably 180 °.
  • the incoming fluid jets meet directly.
  • the impulse of the jets abolishes very quickly, the time period for the abolition of the impulse of the impinging fluid jets being primarily dependent on the flow rate.
  • This in turn is closely related to the pressure drop and the substance properties of the substances to be treated.
  • the dimensions of the nozzles 30 are chosen such that less than 50% of the total pressure drop takes place in the outlet nozzles. This allows the extent and location of cavitation phenomena to be controlled.
  • the total pressure drop across the nozzle system is above 10 bar and preferably above 100 bar.
  • the angle a between the two is Inlet nozzles 14 180 °, and the corresponding angle between the two outlet nozzles 16 is also 180 °.
  • FIG. 5 shows an embodiment in which the angle between the two outlet nozzles 16 is 180 °, while the angle a between the two inlet nozzles 14 is less than 180 °.
  • the longitudinal central axes 40 of the two inlet nozzles 14 are offset parallel to one another, with the result that the fluid jets flow past one another in a targeted manner.
  • intensive mixing is achieved in the boundary region of the two fluid jets, the extent of this mixing being controllable depending on the size of the parallel displacement of the two inlet nozzles. In heterogeneous systems, this can lead to a targeted bi- or multi-modality in the size distribution of the disperse phase.
  • FIG. 3 Another possibility of not allowing the fluid jets to meet directly at the inlet nozzles 14 is shown schematically in FIG. 3.
  • the lower inlet nozzle 26/14 in FIG. 3 can be pivoted through an angle ⁇ .
  • the central axis of the swiveled inlet nozzle 26/14 is designated.
  • the pivot point is not the center M of the nozzle body 12, but a point S which is given by the point of intersection of the longitudinal central axis 38 with the wall of the interior 20.
  • the fluid jets from this inlet nozzle 14 pivoted in this manner are therefore not directly on the center M of the nozzle body 12 directed.
  • the fluid jets coming from the two inlet nozzles 14 therefore flow past one another in a targeted manner with the consequences already described above.
  • the angle ⁇ can be in the range from approximately 0 ° to +/- 80 °.
  • FIGS. 4a and 4b and also FIGS. 5 and 6 schematically show flow patterns of the substances to be treated in the interior 20 of the nozzle body 12.
  • the pressure drop across the outlet nozzle and the resultant flow rate which is associated with turbulent fluctuations movements described above, provide primarily for interfaces that newly formed can be wetted by 'emulsifying aids, and thus leads to a stabilization of the product.
  • the substances to be treated in the device according to the invention are preferably emulsions of at least two mutually insoluble liquids, foams with at least one gaseous and at least one liquid component and suspensions in which at least one solid component is formulated in a fluid system.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP20040730991 2003-05-05 2004-05-04 Disperseur Expired - Lifetime EP1638675B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20306915U DE20306915U1 (de) 2003-05-05 2003-05-05 Dispergiervorrichtung
PCT/EP2004/004741 WO2004098758A1 (fr) 2003-05-05 2004-05-04 Disperseur

Publications (2)

Publication Number Publication Date
EP1638675A1 true EP1638675A1 (fr) 2006-03-29
EP1638675B1 EP1638675B1 (fr) 2009-07-01

Family

ID=27740893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040730991 Expired - Lifetime EP1638675B1 (fr) 2003-05-05 2004-05-04 Disperseur

Country Status (5)

Country Link
US (1) US7563019B2 (fr)
EP (1) EP1638675B1 (fr)
AT (1) ATE435062T1 (fr)
DE (2) DE20306915U1 (fr)
WO (1) WO2004098758A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021259898A1 (fr) 2020-06-22 2021-12-30 Kinematica Ag Dispositif pour homogénéiser ou mélanger des milieux liquides à l'aide d'une haute pression en particulier

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GB0402963D0 (en) 2004-02-11 2004-03-17 Univ Nottingham Counter current mixing device for two different fluids
WO2007111937A1 (fr) * 2006-03-23 2007-10-04 Applera Corporation enrichissement dirige d'adn genomique pour un sequencage a haut rendement
US8517595B2 (en) * 2007-06-28 2013-08-27 The Procter & Gamble Company Apparatus and method for mixing by producing shear and/or cavitation, and components for apparatus
NO329389B1 (no) * 2007-10-12 2010-10-11 Nat Oilwell Norway As Innretning for a blande ulike stoffer og/eller fluider
DE102008014281B4 (de) * 2008-03-06 2009-12-24 Alfred Kärcher Gmbh & Co. Kg Verfahren, Mischsystem und Vorrichtung zum Erzeugen eines desinfizierenden Schaumes
US8322910B2 (en) 2008-07-25 2012-12-04 The Procter & Gamble Company Apparatus and method for mixing by producing shear and/or cavitation, and components for apparatus
DE102009018539A1 (de) * 2009-04-24 2010-11-18 Bayer Technology Services Gmbh Modulare Mischer
CN102933290B (zh) * 2010-06-09 2015-05-27 宝洁公司 液体个人护理组合物的半连续进料生产
DE102016101232A1 (de) * 2016-01-25 2017-07-27 Instillo Gmbh Verfahren zum Herstellen von Emulsionen
US10857507B2 (en) 2016-03-23 2020-12-08 Alfa Laval Corporate Ab Apparatus for dispersing particles in a liquid
US9950328B2 (en) * 2016-03-23 2018-04-24 Alfa Laval Corporate Ab Apparatus for dispersing particles in a fluid
JP6621370B2 (ja) * 2016-05-16 2019-12-18 中越パルプ工業株式会社 対向衝突処理装置
US11213840B2 (en) * 2017-05-01 2022-01-04 Wagner Spray Tech Corporation Mixer design for a plural component system
CN111093816B (zh) * 2017-09-22 2022-11-18 阿法拉伐股份有限公司 液体混合物喷嘴、流动系统和用于将颗粒分散在液体混合物中的方法
US20230219044A1 (en) * 2020-06-10 2023-07-13 The Johns Hopkins University Axisymmetric confined impinging jet mixer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021259898A1 (fr) 2020-06-22 2021-12-30 Kinematica Ag Dispositif pour homogénéiser ou mélanger des milieux liquides à l'aide d'une haute pression en particulier

Also Published As

Publication number Publication date
ATE435062T1 (de) 2009-07-15
DE20306915U1 (de) 2003-08-07
EP1638675B1 (fr) 2009-07-01
DE502004009694D1 (de) 2009-08-13
WO2004098758A1 (fr) 2004-11-18
US7563019B2 (en) 2009-07-21
US20060109738A1 (en) 2006-05-25

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