EP0832682A1 - Appareil d'homogénéisation et dispersion de phases liquides - Google Patents

Appareil d'homogénéisation et dispersion de phases liquides Download PDF

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Publication number
EP0832682A1
EP0832682A1 EP97890194A EP97890194A EP0832682A1 EP 0832682 A1 EP0832682 A1 EP 0832682A1 EP 97890194 A EP97890194 A EP 97890194A EP 97890194 A EP97890194 A EP 97890194A EP 0832682 A1 EP0832682 A1 EP 0832682A1
Authority
EP
European Patent Office
Prior art keywords
rotor
plate
stator
mixing
container
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
EP97890194A
Other languages
German (de)
English (en)
Inventor
Walter Ing. Hoffmann
Leopold Ing. Arnberger
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.)
JM Voith AG
Original Assignee
JM Voith 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 JM Voith AG filed Critical JM Voith AG
Publication of EP0832682A1 publication Critical patent/EP0832682A1/fr
Ceased 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
    • B01F27/2714—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 the relative position of the stator and the rotor, gap in between or gap with the walls being adjustable
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/40—Mixers with shaking, oscillating, or vibrating mechanisms with an axially oscillating rotary stirrer
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F2035/98—Cooling

Definitions

  • the invention relates to a device for homogenizing and dispersing liquid phases or solids in liquids with a mixing tank and one as a rotor trained mixing tool which rotates around an axis and slidably supported in the direction of its axis and with a Drive is connectable.
  • Viscosity are usually discontinuous processes applied to which pre-dosed components in a container mixed in for the time being using slowly running mixing tools and then dispersed using high-speed dispersing tools and be homogenized.
  • An essential difficulty in this process all the points of the mixing container with the same intensity.
  • the mixing tools are used for example in planetary dissolvers thanks to a complex drive system in the mixing tank to move about their own mixing tool axis over the Cross section of the mixing container moves.
  • Known mixing units with partially movable dissolver disks equipped to the solid or after homogenizing finely disperse liquid additives There are also facilities known in which the content of the mixing container by an external circulation pump by a dispersing unit is promoted.
  • a mixing unit is already known from EP-B1 0 196 291 become, in which a mixing vessel in a bottom part and a cover part is divided. There is one in the cover part Press plate tightly guided. Extends through the press plate a mixing tool designed as a rotor, which along its Axis of rotation is guided axially displaceably in the mixing container. The mixing process is carried out exclusively by the mixing tool accomplished, and the press plate sealingly guided in the cover part is used for the subsequent discharge of the mixed material and thus easier emptying of the container.
  • the invention now aims to establish the beginning mentioned type in that the mixing and Disperse even with low to medium viscosity liquids completely successful within a short time and a homogeneous Mixed phase is formed.
  • the invention aims in particular depends on the homogenization even with difficult to disperse Improve media with a short mixing time.
  • the object of the device according to the invention is essentially in that one together with the rotor in the direction of the axis slidable, plate-shaped element is provided, which forming a gap essentially parallel to Extends the plane of rotation of the rotor and has openings, that the plate-shaped element on the inner wall of the Sealing container or with the formation of a throttle cross section is performed and that the plate-shaped element in secured its rotational position or with the rotational speed of the rotor at different speeds and / or directions of rotation at an adjustable axial distance from the rotor with a Drive for an axial stroke is connected.
  • the design must exert a certain amount of exercise on the material to be dispersed just be chosen so that the rotor blades are not coaxial to the axes of the perforations of the plate-shaped Rotate element so that a corresponding radial path through the slot between the plate-shaped element and the rotor is enforced.
  • the training according to the invention is advantageously made such that the plate-shaped element is designed as a stator and in its an end wall, in particular a cover plate of the container adjacent position for rotation to clear the end wall is drivable, which is a particularly simple and reliable construction results.
  • Deviating from known ones Planetary dissolvers can do that with a much simpler drive Satisfaction can be found, taking the measure that is in operation plate-shaped element designed as a stator only in to drive a final position serves the end wall and in particular the wall of the cover plate facing the container to clear safely, so that the cleaning effort essential is reduced.
  • the device according to the invention can advantageously be used in different ways substances to be dispersed, for which the Training is advantageously taken so that the axial distance of the stator from the rotor by an oscillating stroke drive in Operation is adjustable.
  • the training is advantageously made such that the rotor and / or the stator are connected to an ultrasound transmitter is.
  • the mix can be pre-metered in a mixing container in a simple manner for which, for example, fine, powdery solids are applied to a liquid can, whereupon the mixing container with the rotor and is connected to the stator.
  • the training is particularly special easily taken so that the mixing container detachably with a bearing for the rotor shaft and / or the axially displaceable Cover plate with stator for closing of the mixing container is connected.
  • a particularly simple construction of the device according to the invention can be realized in that the rotor on Stator is rotatably mounted. In this way, the storage effort much simplified.
  • Another measure of sensitive mix safely without change homogenize and disperse the material properties exists as it corresponds to a preferred further training in that the mixing container is provided with a cooling jacket is.
  • FIG. 1 shows a schematic representation of the a lid of the mixing container closed at the beginning of the mixing and dispersing process
  • Figure 2 with a first operating position a first predefined gap width
  • FIG. 3 a further one Operating state of the device according to the invention with changed Gap width between rotor and stator.
  • 1 denotes a mixing container, which of is surrounded by a cooling jacket 2.
  • the cooling medium can Connections 3 and 4 are fed in and out.
  • the material to be mixed is first in predosed amount introduced, with 5 the liquid phase and 6 denotes a powder phase.
  • a sliding bearing 8 is provided, via which the mixing tools is guided in their axial stroke.
  • the mixing tool comprises a rotor 9 which through a rotor shaft 10 for Rotation in the direction of arrow 11 can be driven.
  • the drive motor is conventional and for the sake of simplicity not shown.
  • the rotor shaft 10 is arranged concentrically with a quill 12 and rotatably supported via bearing 13 in this.
  • the quill 12 is rotatably connected to a plate-shaped element 14, which has openings 15.
  • a plate-shaped element 14 Between the rotor 9 and a gap 16 is formed in the plate-shaped element 14, the rotor 9 and the plate-shaped element 14 in the sense of Double arrow 17 in the axial direction together or relatively are displaceable to each other.
  • the plate-shaped element 14 can with such a stroke in the direction of the double arrow 17 against Be secured against rotation or with a separate or Rotary drive derived from the rotary drive of the rotor shaft 10 different rotational speed to be driven to rotate.
  • the quill is now used to mix and disperse the material 12 and thus the plate-shaped element 14 and the rotor 9 in the medium to be mixed is lowered, the medium from the rotor 9 detected and through the gap 16 and the openings 15 of the plate-shaped element is conveyed through. Between the plate-shaped element 14 and the rotor 9, the material is on Shear stresses, so that an intensive mixing in the gap 16 takes place. This working position of the mixing tools is in Fig.2 can be seen.
  • the axial gap width can vary depending on the medium to be dispersed of the gap 16 here during the stroke in the sense of the double arrow 17 can be kept constant or changed during operation will. As can be seen in FIG. 3, this gap 16 can be widened be, with a particularly intensive mixing and Dispersion can be achieved in that the plate-shaped Element 14 in the direction of the double arrow 17 relative to axial stroke of the rotor 9 is driven to oscillate, so that a cyclical increase and decrease in the gap width a des Gap 16 is achieved.
  • the openings 15 the plate-shaped element 14 can optionally be closed, to the at an upward push of the plate-shaped element to spread all mixed material safely.
  • the plate-shaped element 14 can have a circumference Seal 19 sealed against the inner wall of the container 1 will. Instead of such a seal 19, however, a Throttle gap are formed, which should be dimensioned must actually be the essential part of the subject to be treated Medium is promoted through the gap 16 and not free at the Can pass through the outer edge of the plate-shaped element 14.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP97890194A 1996-09-25 1997-09-24 Appareil d'homogénéisation et dispersion de phases liquides Ceased EP0832682A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0056396U AT1956U1 (de) 1996-09-25 1996-09-25 Einrichtung zum homogenisieren und dispergieren von flüssigen phasen
AT563/96 1996-09-25

Publications (1)

Publication Number Publication Date
EP0832682A1 true EP0832682A1 (fr) 1998-04-01

Family

ID=3493935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97890194A Ceased EP0832682A1 (fr) 1996-09-25 1997-09-24 Appareil d'homogénéisation et dispersion de phases liquides

Country Status (2)

Country Link
EP (1) EP0832682A1 (fr)
AT (1) AT1956U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1250951A1 (fr) * 2001-04-17 2002-10-23 Fitech AG Dispositif permettant de mélanger et de distribuer des matières en particulier visqueuses ou pâteuses
EP1252922A1 (fr) * 2001-04-17 2002-10-30 Fitech AG Dispositif à l'échelle indutrielle permettant de mélanger et distribuer des matières en particulier visqueuses ou pâteuses
AT413698B (de) * 2002-09-27 2006-05-15 Suedzucker Ag Mischvorrichtung und abdeckvorrichtung, verwendung derselben sowie verfahren zur modifizierung und derivatisierung von kohlenhydraten
EP2216091A1 (fr) * 2007-11-30 2010-08-11 Shigeo Ando Refroidisseur d'homogeneisateur haute pression
CN110559924A (zh) * 2019-08-12 2019-12-13 长沙力源健康发展有限公司 血液检测试剂配制装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10152115A1 (de) * 2001-10-23 2003-05-08 Bosch Gmbh Robert Vorrichtung zum Mischen mindestens zweier Fluide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581414A (en) * 1948-08-13 1952-01-08 Du Pont Process for dispersing pigments in film-forming materials
US4118797A (en) * 1977-10-25 1978-10-03 Energy And Minerals Research Co. Ultrasonic emulsifier and method
EP0196291A2 (fr) * 1985-03-21 1986-10-01 Wolf-Dieter Kreuziger Dispositif de mélange
SU1570753A1 (ru) * 1988-02-05 1990-06-15 В.Г.Вохм нин (ЬЗ) 66.063 (088.8) Вибросмеситель

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581414A (en) * 1948-08-13 1952-01-08 Du Pont Process for dispersing pigments in film-forming materials
US4118797A (en) * 1977-10-25 1978-10-03 Energy And Minerals Research Co. Ultrasonic emulsifier and method
EP0196291A2 (fr) * 1985-03-21 1986-10-01 Wolf-Dieter Kreuziger Dispositif de mélange
SU1570753A1 (ru) * 1988-02-05 1990-06-15 В.Г.Вохм нин (ЬЗ) 66.063 (088.8) Вибросмеситель

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET PATENTS ABSTRACTS Week 9105, 20 March 1991 Derwent World Patents Index; AN 91-035622, XP002048485 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1250951A1 (fr) * 2001-04-17 2002-10-23 Fitech AG Dispositif permettant de mélanger et de distribuer des matières en particulier visqueuses ou pâteuses
EP1252922A1 (fr) * 2001-04-17 2002-10-30 Fitech AG Dispositif à l'échelle indutrielle permettant de mélanger et distribuer des matières en particulier visqueuses ou pâteuses
AT413698B (de) * 2002-09-27 2006-05-15 Suedzucker Ag Mischvorrichtung und abdeckvorrichtung, verwendung derselben sowie verfahren zur modifizierung und derivatisierung von kohlenhydraten
EP2216091A1 (fr) * 2007-11-30 2010-08-11 Shigeo Ando Refroidisseur d'homogeneisateur haute pression
EP2216091A4 (fr) * 2007-11-30 2011-11-23 Shigeo Ando Refroidisseur d'homogeneisateur haute pression
CN110559924A (zh) * 2019-08-12 2019-12-13 长沙力源健康发展有限公司 血液检测试剂配制装置

Also Published As

Publication number Publication date
AT1956U1 (de) 1998-02-25

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