EP1471993B1 - Dispositif de dispersion - Google Patents

Dispositif de dispersion Download PDF

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Publication number
EP1471993B1
EP1471993B1 EP02712176A EP02712176A EP1471993B1 EP 1471993 B1 EP1471993 B1 EP 1471993B1 EP 02712176 A EP02712176 A EP 02712176A EP 02712176 A EP02712176 A EP 02712176A EP 1471993 B1 EP1471993 B1 EP 1471993B1
Authority
EP
European Patent Office
Prior art keywords
stator
container
substances
rotor
previous
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
EP02712176A
Other languages
German (de)
English (en)
Other versions
EP1471993A1 (fr
Inventor
Uwe KLAUMÜNZNER
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.)
FrymaKoruma AG
Proxes Technology GmbH
Original Assignee
FrymaKoruma AG
FrymaKoruma 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 FrymaKoruma AG, FrymaKoruma GmbH filed Critical FrymaKoruma AG
Publication of EP1471993A1 publication Critical patent/EP1471993A1/fr
Application granted granted Critical
Publication of EP1471993B1 publication Critical patent/EP1471993B1/fr
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
    • 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
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/55—Mixing liquids with solids the mixture being submitted to electrical, sonic or similar energy
    • B01F23/551—Mixing liquids with solids the mixture being submitted to electrical, sonic or similar energy using vibrations
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/85—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with two or more stirrers on separate shafts
    • 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
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/85—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with a vibrating element inside the receptacle

Definitions

  • the invention relates to a device for dispersing in particular liquid to viscous substance mixtures, comprising a container having one or more openings for introducing the substances to be dispersed and one or more openings for discharging the dispersed substances, and at least one rotor and a stator, wherein the at least one Rotor for the purpose of dispersing introduced into the container substances relative to the stator is rotatably mounted about an axis of rotation, wherein the stator is reciprocally mounted in the direction of the axis of rotation of the rotor and by means of a displacement device within a predetermined Hub Schles displaceable and thereby lockable in any position
  • Dispersing devices of the type mentioned in the prior art are usually used to mix liquid substances with other liquid or powdery substances so that a substantially homogeneous deagglomerated mass is formed.
  • the known dispersing devices consistently have the disadvantage that in particular a rapid introduction of substances is not guaranteed.
  • the energy input to the substances to be dispersed can only be controlled by the known dynamic devices during a dispersing process via a change in rotational speed of a rotor.
  • a change in the energy input would only be possible with additional facilities such as the installation of other dispersing tools. In question would be multi-level tools or similar. For this purpose, however, a disassembly of the respective dispersing would be necessary.
  • a dispersing device of the type mentioned is known from US 4 637 555 A.
  • this known device has the disadvantage that an energy input can not be changed independently of a rotor speed and a rapid introduction of substances is not ensured.
  • Similar devices are known from EP 0 620 039 A and from NL 1 008 622 C.
  • the object of the invention is to provide a dispersing device, by means of which, in particular, a rapid introduction of substances is made possible, wherein an energy input can be changed independently of a rotor speed.
  • the displacement device includes a provided on the outer wall of the container double external thread with two spaced to form a clearance between the spaced individual threads, with a single thread covering mother along the double External thread is rotatably displaceable and the stator is connected via a guided through a slot in the container wall mandrel with the mother.
  • the displacement includes a provided on the outer wall of the container double external thread with two spaced apart to form a clearance between the spaced individual threads, wherein a both single thread covering nut along the double external thread is rotatably displaceable and the stator is connected to the nut via a mandrel passing through a slot in the container wall, it is achieved that a dispersing device is provided by means of which an intensive pumping action is produced by axially displacing the stator from the dispersing zone. This ensures that substances to be introduced according to their wetting behavior can be entered either in a high shear rate or very fast. Furthermore, the energy input into the product to be processed is influenced depending on the engagement of the stator in the dispersion zone.
  • the rotor is provided with coaxially arranged teeth.
  • the coaxial teeth can support the pumping properties of the device according to the invention by their shape.
  • rear-trained pump vanes may be mounted on the rotor bottom.
  • the stator is provided according to preferred embodiments with coaxially arranged teeth.
  • the dispersion is equipped with other tools. These may be conical or flat grinding tools. Furthermore, the coaxial toothed dispersing tools can also be designed in multiple stages.
  • the stator is designed substantially as a hollow cylinder with a partially open and an open end face.
  • two rotors are provided, one of which is arranged in the vicinity of the outer surface of the stator and another in the vicinity of the inner circumferential surface of the stator.
  • a rotor is preferably formed substantially as a hollow cylinder with an open and a closed, a bottom forming end face, wherein the closed end face of the rotor faces the partially open end face of the stator in the operating state and wherein a rotor in the region of the open end face preferably arranged coaxially Teeth is provided.
  • the partially open The end face of the stator may form an outlet opening for the dispersed product.
  • one or more premix vanes are provided within the container, which are mounted on a shaft which is aligned along the longitudinal axis of the container.
  • the preferably hollow cylindrical container is positioned vertically, wherein above the container, a container with an upper cylindrical portion and a lower conical or spherical cutout portion is provided, wherein the conical or spherical cutout part in an upper part of the container, or opens into an open end face of the container.
  • an agitator is preferably provided in the container.
  • the apparatus preferably provides a piping system which opens from an opening for discharging dispersed substances in the conical or spherical part of the container, this embodiment being preferred for smaller quantities of the container becomes.
  • a pipe system is alternatively or additionally provided, which opens from an opening for discharging dispersed substances in the cylindrical part of the container. This embodiment is preferred for larger quantities of the container.
  • the stator is designed as an ultrasonic sonotrode.
  • the ultrasonic sonotrode can be designed essentially as a hollow cylinder with a partially open and an open end face, wherein it automatically assumes at least one waveform when transversal ultrasonic vibrations in the partially open end face, in which the distance of the cylinder wall of the central cylinder longitudinal axis periodically changes.
  • the inventive device 100 shown in Figures 1 to 4 for dispersing particular liquid to viscous substances comprises a container 200 having an opening 210 for introducing the substances to be dispersed and an opening 220 for discharging the dispersed substances and contains two rotors 150, 160 and a stator 110, wherein the rotors 150, 160 for the purpose of dispersing introduced into the container 200 substances relative to the stator 110 are each rotatably mounted about a rotation axis 155, 165.
  • the stator 110 is essential to the invention mounted reciprocally in the direction of the axis of rotation 155 of the rotor 150 and displaceable by means of a displacement device 170 within a predetermined stroke range and can be releasably locked in any position. Due to the pumping action which is produced in the case of a displacement process effected by means of the displacement device 170, substances to be introduced can be entered very precisely controllably slowly or quickly in accordance with their wetting behavior.
  • the displacement device 170 includes a provided on the outer wall of the container double external thread with two parallel spaced to form a clearance between the individual threads 171, 172, wherein a both individual threads 171, 172 covering the nut 173 along the double external thread is rotatably displaceable and the Stator 110 is connected via a guided through a slot 210 in the wall of the container 200 mandrel 220 with the nut 173.
  • the two rotors 150, 160 are substantially as a hollow cylinder with a closed, a bottom 151, 161st forming end face and an open end face 152, 162 and provided in the region of the open end face 152 of its lateral surface with coaxially arranged teeth.
  • One of the rotors 150 is disposed in the vicinity of the outer circumferential surface of the stator 110 and the other rotor 160 is disposed in the vicinity of the inner circumferential surface of the stator 110.
  • the stator 110 is also designed substantially as a hollow cylinder and has a partially open end face 111 and an open end face 112.
  • the stator 110 is provided in the region of its lateral surface with coaxially arranged teeth, which are formed as slots in the lateral surface, which is able to pass through a substrate to be dispersed.
  • premix vanes 300, 310 which are mounted on a shaft 330 which is aligned along the longitudinal axis 230 of the container 200, wherein above the container 200 a container 400 having an upper cylindrical portion 410 and a lower conical portion 420 is provided is provided, and in the container 400, a stirrer 430 is provided, wherein the conical portion 420 of the container 400 opens into an upper part 240 of the container 200.
  • a piping 500 opens from an orifice 430 for discharging dispersed substances in the conical part 420 of the container 400, and another piping 510 opens from an orifice 440 for discharging dispersed substances in the cylindrical part 410 of the container 400.
  • the illustrated dispersing device according to the invention has the peculiarity that the stator 110 is designed as an ultrasonic sonotrode, wherein the ultrasonic sonotrode is designed substantially as a hollow cylinder with a partially open and an open end face and assumes at least one waveform when ultrasonic vibrations are introduced the periodically changes the distance of the cylinder wall from the central cylinder longitudinal axis.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

L'invention concerne un dispositif permettant de disperser en particulier des substances semi-liquides. Ce dispositif de dispersion comprend un réservoir (200), présentant une ou plusieurs ouvertures pour l'introduction des substances à disperser et une ou plusieurs ouvertures pour l'évacuation (150, 160) des substances à disperser, ainsi qu'au moins un rotor et un stator (110), ledit rotor étant monté de façon à pouvoir tourner en opposition au stator autour d'un axe de rotation (155, 165) afin de disperser les substances introduites dans le réservoir. Selon la présente invention, une introduction rapide, pouvant être précisément dosée, et un réglage quantitatif desdites substances sont rendus possibles, du fait que le stator (150, 160) est monté de façon à pouvoir effectuer un mouvement réciproque en direction de l'axe de rotation (155, 165) du rotor et que ce rotor peut être déplacé à l'aide d'un dispositif de déplacement (170) dans une plage de course prédéfinie et arrêté dans une position quelconque.

Claims (16)

  1. Dispositif de dispersion (100) notamment pour des mélanges de substances liquides à demi-liquides, comportant un récipient (200) ayant un ou plusieurs orifices (210) d'introduction des substances à disperser et un ou plusieurs orifices (220) d'écoulement des substances dispersées et au moins un rotor (150, 160) et un stator (110), l'au moins un rotor (150, 160) étant monté pivotant autour d'un axe de rotation (155, 165), en face du stator (110), aux fins de dispersion de substances introduites dans le récipient (200), le stator (110) étant monté de façon à pouvoir être inversé vers l'axe de rotation (155, 165) du rotor (150, 160) et pouvant être déplacé à l'intérieur d'un champ de course prédéfini, au moyen d'un dispositif de décalage (170), et en cela pouvant être immobilisé dans une position quelconque,
    caractérisé en ce que le dispositif de décalage (170) comporte un filet double prévu sur la paroi extérieure du récipient (200) et comprenant deux filets séparés (171, 172) parallèles et écartés de manière à former un espace entre eux, un écrou (173) recouvrant tous les deux filets séparés (171, 172) étant disposé de façon à pouvoir être déplacé en le tournant, le long du filet double, et le stator (110) étant relié à l'écrou (173) par un goujon (220) s'étendant à travers un trou oblong (210) ménagé dans la paroi de récipient.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le rotor (150, 160) est réalisé essentiellement en forme d'un cylindre creux présentant une face frontale ouverte et une face frontale fermée (152, 162) formant un fond(151, 161).
  3. Dispositif selon la revendication 2,
    caractérisé en ce que le rotor (150, 160) est muni, au niveau de la face frontale ouverte (152, 162), de dents coaxiaux.
  4. Dispositif selon l'une quelconque des revendications préalables,
    caractérisé en ce que le stator (110) est réalisé essentiellement en forme d'un cylindre creux présentant une face frontale partiellement ouverte (111) et une face frontale ouverte (112).
  5. Dispositif selon la revendication 4,
    caractérisé en ce que le stator (110) est muni, au niveau de la face frontale ouverte (112), de dents coaxiaux.
  6. Dispositif selon la revendication 4,
    caractérisé en ce que le stator (110) est muni, au niveau de la surface d'enveloppe du cylindre creux, de dents coaxiaux.
  7. Dispositif selon l'une quelconque des revendications préalables,
    caractérisé en ce que il y a prévu deux rotors (150, 160) dont l'un est disposé au voisinage de la surface d'enveloppe extérieure du stator (110) et l'autre est disposé au voisinage de la surface d'enveloppe intérieure du stator (110).
  8. Dispositif selon l'une quelconque des revendications préalables,
    caractérisé en ce que l'unité de dispersion constituée par le stator et l'au moins un rotor (150, 160) est équipée, supplémentairement, d'outils de broyage coniques ou plats.
  9. Dispositif selon l'une quelconque des revendications préalables,
    caractérisé en ce que les outils de dispersion dentés coaxialement sont réalisés à plusieurs étages.
  10. Dispositif selon l'une quelconque des revendications préalables,
    caractérisé en ce que il y a prévu à l'intérieur du récipient (200) un ou plusieurs ailes de prémélange (300, 310) tournant sur un arbre (330) orienté le long de l'axe longitudinal (230) du récipient.
  11. Dispositif selon l'une quelconque des revendications préalables,
    caractérisé en ce que un bac (400) est prévu au-dessus du récipient (200), comprenant une partie supérieure cylindrique (410) et une partie inférieure conique (420), la partie conique (420) débouchant dans une partie supérieure (240) du récipient (200).
  12. Dispositif selon la revendication 11,
    caractérisé en ce que un mélangeur-agitateur est prévu dans le bac (400).
  13. Dispositif selon l'une des revendications 11 ou 12,
    caractérisé en ce que une tuyauterie (500) est prévu qui débouche, à partir d'un orifice (440) d'écoulement de substances dispersées, dans la partie conique (420) du bac (400).
  14. Dispositif selon l'une des revendications 11 ou 12,
    caractérisé en ce que une tuyauterie (510) est prévu qui débouche, à partir d'un orifice (440) d'écoulement de substances dispersées, dans la partie cylindrique (410) du bac (400).
  15. Dispositif selon l'une quelconque des revendications préalables,
    caractérisé en ce que le stator (110) est réalisé sous la forme d'une sonotrode à ultrasons.
  16. Dispositif selon la revendication 15,
    caractérisé en ce que la sonotrode à ultrasons est réalisée essentiellement en forme d'un cylindre creux présentant une face frontale partiellement ouverte et une face frontale ouverte, et présente, lors l'introduction d'ondes ultrasonores, au moins une forme d'oscillation qui a pour effet que la distance entre la paroi de cylindre et l'axe longitudinal central du cylindre change périodiquement.
EP02712176A 2002-02-07 2002-02-21 Dispositif de dispersion Expired - Lifetime EP1471993B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10204921A DE10204921C1 (de) 2002-02-07 2002-02-07 Dispergier-Vorrichtung
DE10204921 2002-02-07
PCT/IB2002/000546 WO2003066203A1 (fr) 2002-02-07 2002-02-21 Dispositif de dispersion

Publications (2)

Publication Number Publication Date
EP1471993A1 EP1471993A1 (fr) 2004-11-03
EP1471993B1 true EP1471993B1 (fr) 2007-01-17

Family

ID=27674570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02712176A Expired - Lifetime EP1471993B1 (fr) 2002-02-07 2002-02-21 Dispositif de dispersion

Country Status (4)

Country Link
US (1) US7331540B2 (fr)
EP (1) EP1471993B1 (fr)
DE (2) DE10204921C1 (fr)
WO (1) WO2003066203A1 (fr)

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DE10204921C1 (de) 2003-10-16
WO2003066203A1 (fr) 2003-08-14
US20060016922A1 (en) 2006-01-26
US7331540B2 (en) 2008-02-19
EP1471993A1 (fr) 2004-11-03
DE50209314D1 (de) 2007-03-08

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