EP1471993B1 - Dispersing device - Google Patents

Dispersing device 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
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EP
European Patent Office
Prior art keywords
stator
container
substances
rotor
previous
Prior art date
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Expired - Lifetime
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EP02712176A
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German (de)
French (fr)
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EP1471993A1 (en
Inventor
Uwe KLAUMÜNZNER
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FrymaKoruma AG
Proxes Technology GmbH
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FrymaKoruma AG
FrymaKoruma GmbH
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Publication of EP1471993A1 publication Critical patent/EP1471993A1/en
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    • 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

Abstract

The invention relates to a device for the dispersion of viscous substances in particular, with a container (200) comprising one or several openings for the introduction of the substances for dispersion, one or several openings for the discharge (150, 160) of the dispersed substances and at least one rotor and a stator (110), whereby the at least one rotor is mounted such as to rotate relative to said stator about a rotation axis (155, 165) for dispersing the substances introduced into the container. According to the invention, a rapid and precisely dosed introduction and quantitative regulation of the substances is achieved, whereby the stator (150, 160) is reciprocally mounted in the direction of the rotation axis (155, 165) of the rotor and can be displaced within a given stroke range by means of a displacement device (170) and may thus be locked in any position.

Description

Die Erfindung betrifft eine Vorrichtung zum Dispergieren insbesondere flüssiger bis zähflüssiger Substanzgemische, mit einem Behälter mit einer oder mehr Öffnung zum Einleiten der zu dispergierenden Substanzen sowie einer oder mehr Öffnungen zum Ausleiten der dispergierten Substanzen, sowie mindestens einem Rotor und einem Stator, wobei der mindestens eine Rotor zum Zweck des Dispergierens von in den Behälter eingeleiteten Substanzen gegenüber dem Stator um eine Rotationsachse drehbar gelagert ist, wobei der Stator in Richtung der Rotationsachse des Rotors reziprozierbar gelagert ist und mittels einer Verschiebeeinrichtung innerhalb eines vorgegebenen Hubbereiches verschiebbar und dabei in beliebiger Position arretierbar istThe 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 Hubbereiches displaceable and thereby lockable in any position

Dispergier-Vorrichtungen der eingangs genannten Art werden im Stand der Technik in der Regel dazu verwendet, flüssige Substanzen mit anderen flüssigen oder pulverförmigen Substanzen so zu mischen, dass eine im wesentlichen homogene desagglomerierte Masse entsteht. Die bekannten Dispergier-Vorrichtungen weisen jedoch durchwegs den Nachteil auf, dass insbesondere ein schnelles Einleiten von Substanzen nicht gewährleistet ist. Ferner kann die den bekannten dynamischen Vorrichtungen während eines Dispergiervorgangs eine Energieeintrag in die zu dispergierenden Substanzen nur über eine Drehzahländerung eines Rotors gesteuert werden. Eine Änderung des Energieeintrages darüber hinaus wäre nur mit zusätzlichen Einrichtungen wie dem Einbau anderer Dispergierwerkzeuge möglich. In Frage kämen dabei mehrstufige Werkzeuge oder ähnliche. Hierzu wäre indes eine Demontage der betreffenden Dispergiereinrichtung notwendig.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. However, the known dispersing devices consistently have the disadvantage that in particular a rapid introduction of substances is not guaranteed. Furthermore, 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. In addition, 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.

Eine Dispergier-Vorrichtung der eingangs genannten Art ist aus US 4 637 555 A bekannt. Diese bekannte Vorrichtung weist jedoch den Nachteil auf, dass ein Energieeintrag nicht unabhängig von einer Rotordrehzahl änderbar ist und ein schnelles Einleiten von Substanzen nicht sichergestellt ist. Ähnliche Vorrichtungen sind aus EP 0 620 039 A sowie aus NL 1 008 622 C bekannt.A dispersing device of the type mentioned is known from US 4 637 555 A. However, 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.

Aufgabe der Erfindung ist es, eine Dispergier-Vorrichtung zu schaffen, mittels derer insbesondere ein schnelles Einleiten von Substanzen ermöglicht ist, wobei ein Energieeintrag unabhängig von einer Rotordrehzahl änderbar ist.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.

Für eine Vorrichtung der eingangs genannten Art wird diese Aufgabe dadurch gelöst, dass die Verschiebeeinrichtung ein an der Außenwand des Behälters vorgesehenes Doppel-Außengewinde mit zwei unter Bildung eines lichten Zwischenraumes im Abstand parallel angeordneten Einzelgewinden enthält, wobei eine beide Einzelgewinde abdeckende Mutter entlang dem Doppel-Außengewinde drehbar verschiebbar ist und der Stator über einen durch ein Langloch in der Behälterwand geführten Dorn mit der Mutter verbunden ist.For a device of the type mentioned, this object is achieved in that 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.

Bevorzugte Ausführungsformen der Erfindung sind Gegenstand der Unteransprüche.Preferred embodiments of the invention are subject of the dependent claims.

Bei der erfindungsgemäßen Flanschvorrichtung wird durch die Merkmalskombination, dass die Verschiebeeinrichtung ein an der Außenwand des Behälters vorgesehenes Doppel-Außengewinde mit zwei unter Bildung eines lichten Zwischenraumes im Abstand parallel angeordneten Einzelgewinden enthält, wobei eine beide Einzelgewinde abdeckende Mutter entlang dem Doppel-Außengewinde drehbar verschiebbar ist und der Stator über einen durch ein Langloch in der Behälterwand geführten Dorn mit der Mutter verbunden ist, erreicht, dass eine Dispergier-Vorrichtung geschaffen ist, mittels derer durch axiales Verschieben des Stators aus der Dispergierzone eine intensive Pumpwirkung erzeugt wird. Dadurch ist gewährleistet, dass einzuleitende Substanzen entsprechend ihres Benetzungsverhaltens entweder scherintensiv oder sehr schnell eingetragen werden können. Ferner wird der Energieeintrag in das zu bearbeitende Produkt je nach Eingriff des Stators in die Dispergierzone beeinflusst.In the flange device according to the invention is characterized by the combination of features that 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.

Gemäß einer ersten bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass der Rotor mit koaxial angeordneten Zähnen versehen ist. Die koaxial angeordneten Zähne können durch ihre Formgebung die Pumpeigenschaften der erfindungsgemäßen Vorrichtung unterstützen. Ferner können am Rotorboden rückwärtig ausgebildete Pumpflügel angebracht sein. Auch der Stator ist gemäß bevorzugter Ausführungsformen mit koaxial angeordneten Zähnen versehen.According to a first preferred embodiment of the device according to the invention it is provided that 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. Furthermore, rear-trained pump vanes may be mounted on the rotor bottom. Also, the stator is provided according to preferred embodiments with coaxially arranged teeth.

Gemäß einer anderen bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass die Dispergiereinheit mit anderen Werkzeugen bestückt ist. Diese können konisch oder flach ausgebildete Mahlwerkzeuge sein. Ferner können die koaxial verzahnten Dispergierwerkzeuge auch mehrstufig ausgeführt sein.According to another preferred embodiment of the device according to the invention it is provided that 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.

Gemäß einer wichtigen bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass der Stator im wesentlichen als Hohlzylinder mit einer teilweise offenen und einer offenen Stirnfläche ausgebildet ist. Im Zusammenspiel mit einem derartige ausgestalteten Stator sind zwei Rotoren vorgesehen, von denen einer in der Nachbarschaft der äußeren Mantelfläche des Stators und ein anderer in der Nachbarschaft der inneren Mantelfläche des Stators angeordnet ist. Ein Rotor ist dabei vorzugsweise im wesentlichen als Hohlzylinder mit einer offenen und einer geschlossenen, einen Boden bildenden Stirnfläche ausgebildet, wobei die geschlossene Stirnfläche des Rotors der teilweise offenen Stirnfläche des Stators im Betriebszustand gegenübersteht und wobei ein Rotor im Bereich der offenen Stirnfläche vorzugsweise mit koaxial angeordneten Zähnen versehen ist. Die teilweise offene Stirnfläche des Stators kann eine Ausgangsöffnung für das dispergierte Produkt bilden.According to an important preferred embodiment of the device according to the invention it is provided that the stator is designed substantially as a hollow cylinder with a partially open and an open end face. In cooperation with such a configured stator 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.

Bei der erfindungsgemäßen Vorrichtung sind innerhalb des Behälters vorzugsweise ein oder mehr Vormischflügel vorgesehen, die auf einer Welle gelagert sind, die entlang der Längsachse des Behälters ausgerichtet ist.In the device according to the invention preferably 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.

Um eine große Füllmenge in den Behälter einleiten zu können ist der vorzugsweise hohlzylindrisch ausgebildete Behälter senkrecht positioniert, wobei oberhalb des Behälters ein Container mit einem oberen zylindrischen Teil und einem unteren konischen oder kugelausschnittförmigen Teil vorgesehen ist, wobei der konische oder kugelausschnittförmigen Teil in einen oberen Teil des Behälters, bzw. in eine offene Stirnfläche des Behälters mündet. Um eine Vormischung sicherzustellen, ist in dem Container dabei vorzugsweise ein Rührwerk vorgesehen.In order to introduce a large capacity in 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. In order to ensure premixing, an agitator is preferably provided in the container.

Um eine Mehrfachverarbeitung der in dem Behälter zu dispergierenden Substanzen zu erreichen ist bei der erfindungsgemäßen Vorrichtung vorzugsweise ein Rohrsystem vorgesehen, das ausgehend von einer Öffnung zum Ausleiten dispergierter Substanzen in dem konischen oder kugelausschnittförmigen Teil des Containers mündet, wobei diese Ausführungsform bei kleineren Füllmengen des Behälters bevorzugt wird. Zum gleichen Zweck ist alternativ oder zusätzlich ein Rohrsystem vorgesehen, das ausgehend von einer Öffnung zum Ausleiten dispergierter Substanzen in dem zylindrischen Teil des Containers mündet. Diese Ausführungsform wird bei größeren Füllmengen des Behälters bevorzugt.In order to achieve multiple processing of the substances to be dispersed in the container, the apparatus according to the invention 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. For the same purpose, 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.

Gemäß einer weiteren wichtigen bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass der Stator als Ultraschall-Sonotrode ausgebildet ist. Die Ultraschall-Sonotrode kann dabei im wesentlichen als Hohlzylinder mit einer teilweise offenen und einer offenen Stirnfläche ausgebildet sein, wobei sie bei Einleiten transversaler Ultraschallschwingungen in die teilweise offene Stirnfläche automatisch mindestens eine Schwingungsform annimmt, bei der sich der Abstand der Zylinderwand von der zentralen Zylinderlängsachse periodisch ändert.According to another important preferred embodiment of the device according to the invention it is provided that 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.

Die erfindungsgemäße Vorrichtung wird im folgenden anhand einer bevorzugten Ausführungsform erläutert, die in den Figuren der Zeichnung dargestellt ist. Darin zeigen:

Fig. 1
eine erste bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht;
Fig. 2
einen vergrößerten Ausschnitt der in Fig. 1 dargestellten bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht;
Fig. 3
einen vergrößerten Ausschnitt der in Fig. 2 dargestellten bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht.
Fig. 4
einen vergrößerten Ausschnitt der in Fig. 3 dargestellten bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht.
The device according to the invention will be explained below with reference to a preferred embodiment, which is shown in the figures of the drawing. Show:
Fig. 1
a first preferred embodiment of the device according to the invention in a cross-sectional view;
Fig. 2
an enlarged detail of the illustrated in Figure 1 the preferred embodiment of the device according to the invention in a cross-sectional view.
Fig. 3
an enlarged detail of the illustrated in Fig. 2 the preferred embodiment of the device according to the invention in a cross-sectional view.
Fig. 4
an enlarged detail of the illustrated in Fig. 3 preferred embodiment of the device according to the invention in a cross-sectional view.

Die in den Figuren 1 bis 4 dargestellte erfindungsgemäße Vorrichtung 100 zum Dispergieren insbesondere flüssiger bis zähflüssiger Substanzen weist einen Behälter 200 mit einer Öffnung 210 zum Einleiten der zu dispergierenden Substanzen sowie einer Öffnung 220 zum Ausleiten der dispergierten Substanzen auf und enthält zwei Rotoren 150, 160 und einen Stator 110, wobei die Rotoren 150, 160 zum Zweck des Dispergierens von in den Behälter 200 eingeleiteten Substanzen gegenüber dem Stator 110 jeweils um eine Rotationsachse 155, 165 drehbar gelagert sind. Der Stator 110 ist erfindungswesentlich in Richtung der Rotationsachse 155 des Rotors 150 reziprozierbar gelagert und mittels einer Verschiebeeinrichtung 170 innerhalb eines vorgegebenen Hubbereiches verschiebbar und kann dabei in beliebiger Position lösbar arretiert werden. Durch die Pumpwirkung, die bei einem mittels der Verschiebeeinrichtung 170 bewirkten Verschiebevorgang erzeugt wird, können einzuleitende Substanzen entsprechend ihres Benetzungsverhaltens sehr genau steuerbar langsam oder schnell eingetragen werden.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.

Die Verschiebeeinrichtung 170 enthält ein an der Außenwand des Behälters vorgesehenes Doppel-Außengewinde mit zwei unter Bildung eines lichten Zwischenraumes im Abstand parallel angeordneten Einzelgewinden 171, 172, wobei eine beide Einzelgewinde 171, 172 abdeckende Mutter 173 entlang dem Doppel-Außengewinde drehbar verschiebbar ist und der Stator 110 über einen durch ein Langloch 210 in der Wand des Behälters 200 geführten Dorn 220 mit der Mutter 173 verbunden ist.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.

Die beiden Rotoren 150, 160 sind im wesentlichen als Hohlzylinder mit einer geschlossenen, einen Boden 151, 161 bildenden Stirnfläche sowie einer offenen Stirnfläche 152, 162 ausgebildet und im Bereich der offenen Stirnfläche 152 ihrer Mantelfläche mit koaxial angeordneten Zähnen versehen. Einer der Rotoren 150 ist dabei in der Nachbarschaft der äußeren Mantelfläche des Stators 110 angeordnet und der andere Rotor 160 ist in der Nachbarschaft der inneren Mantelfläche des Stators 110 angeordnet.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.

Der Stator 110 ist ebenfalls im wesentlichen als Hohlzylinder ausgeführt und weist eine teilweise offene Stirnfläche 111 und eine offene Stirnfläche 112 auf. Der Stator 110 ist im Bereich seiner Mantelfläche mit koaxial angeordneten Zähnen versehen, die als Schlitze in der Mantelfläche ausgebildet sind, die ein zu dispergierendes Substrat zu passieren vermag.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.

Innerhalb des Behälters sind Vormischflügel 300, 310 vorgesehen, die auf einer Welle 330 gelagert sind, die entlang der Längsachse 230 des Behälters 200 ausgerichtet ist, wobei oberhalb des Behälters 200 ein Container 400 mit einem oberen zylindrischen Teil 410 und einem unteren konischen Teil 420 vorgesehen ist, und in dem Container 400 ein Rührwerk 430 vorgesehen ist, wobei der konische Teil 420 des Containers 400 in einen oberen Teil 240 des Behälters 200 mündet.Within the container are 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.

Ein Rohrsystem 500 mündet -ausgehend von einer Öffnung 430 zum Ausleiten dispergierter Substanzen in dem konischen Teil 420 des Containers 400, und ein weiteres Rohrsystem 510 mündet ausgehend von einer Öffnung 440 zum Ausleiten dispergierter Substanzen in dem zylindrischen Teil 410 des Containers 400.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.

Die dargestellte erfindungsgemäße Dispergiervorrichtung weist die Besonderheit auf, dass der Stator 110 als Ultraschall-Sonotrode ausgebildet ist, wobei die Ultraschall-Sonotrode im wesentlichen als Hohlzylinder mit einer teilweise offenen und einer offenen Stirnfläche ausgebildet ist und bei Einleiten von Ultraschallschwingungen mindestens eine Schwingungsform annimmt, in der sich der Abstand der Zylinderwand von der zentralen Zylinderlängsachse periodisch ändert.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.

Das oben erläuterte Ausführungsbeispiel der Erfindung dient lediglich dem Zweck eines besseren Verständnisses der durch die Ansprüche definierten erfindungsgemäßen Lehre, die als solche durch das Ausführungsbeispiel nicht eingeschränkt ist.The above-described embodiment of the invention is merely for the purpose of better understanding of the teaching defined by the claims according to the invention, which is not limited as such by the embodiment.

Claims (16)

  1. A device (100) for the dispersion of, in particular, low-viscosity to high-viscosity mixtures of substances, comprising a container (200) having one or more openings (210) for introducing the substances to be dispersed and one or more openings (220) for discharging the dispersed substances, and at least one rotor (150, 160) and one stator, said at least one rotor being mounted for rotation relatively to said stator (110) about an axis of rotation for the purpose of dispersing the substances that have been introduced into the container (200), wherein said stator (110) is mounted for reciprocation in the direction of said rotation axis of said rotor (150, 160) and is adapted for displacement by means of a displacement device (170) within a specified range of movement and can be locked in an arbitrary position, characterized in that said displacement device (170) comprises a double male thread provided on the outside wall of said container (200) and having two parallel individual threads (171, 172) spaced from each other so as to form a clearance, and a nut (173) covering both individual threads (171, 172) is rotatably displaceable along said double male thread, and said stator (110) is connected to said nut (173) by a pin passing through an oblong hole (210) in the wall of said container (200).
  2. A device as defined in claim 1, characterized in that said rotor (150, 160) is substantially in the form of a hollow cylinder which is open at one end (152) and closed at the other end (162) so as to form a baseplate (151, 161).
  3. A device as defined in claim 2, characterized in that said rotor (150, 160) is provided with coaxial teeth in the region of said open end (152, 162).
  4. A device as defined in any one of the previous claims, characterized in that said stator (110) is substantially in the form of a hollow cylinder which is partially open at one end (111) and is open at the other end (112).
  5. A device as defined in claim 4, characterized in that said stator (110) is provided with coaxial teeth in the region of said open end.
  6. A device as defined in claim 4, characterized in that said stator (110) is provided with coaxial teeth in the region of the barrel surface of said hollow cylinder.
  7. A device as defined in any one of the previous claims, characterized in that two rotors (150, 160) are provided, of which one is located in the vicinity of the outer lateral surface of said stator (110) and the other is located in the vicinity of the inner lateral surface of said stator (110).
  8. A device as defined in any one of the previous claims, characterized in that the dispersing unit formed by said stator (110) and said at least one rotor (150, 160) is additionally provided with conical or flat breakers.
  9. A device as defined in any one of the previous claims, characterized in that said coaxially toothed dispersing implements are in the form of multistage implements.
  10. A device as defined in any one of the previous claims, characterized in that within said container (200) there are provided one or more premix impellers (300. 310) mounted on a shaft (330) which is in line with the longitudinal axis (230) of said container (200) .
  11. A device as defined in any one of the previous claims, characterized in that above said container (200) there is provided a bin (400) having an upper, cylindrical part (410) and a lower, cone-shaped part (420), which cone-shaped part (420) is adjacent an upper part (240) of said container (200) .
  12. A device as defined in claim 11, characterized in that an stirrer is provided in said bin (400).
  13. A device as defined in claim 11 or claim 12,
    characterized in that a piping system (500) is provided which leads from a discharge opening (440) for dispersed substances to said cone-shaped part (420) of said bin (400).
  14. A device as defined in claim 11 or claim 12, characterized in that a piping system (510) is provided which leads from a discharge opening (440) for dispersed substances to said cylindrical part (410) of said bin (400).
  15. A device as defined in any one of the previous claims, characterized in that said stator (110) is an ultrasonic sonotrode (sound emitter).
  16. A device as defined in claim 15, characterized in that said ultrasonic sonotrode (sound emitter) is substantially in the form of a hollow cylinder which is partially open at one end and is open at the other end and assumes, when ultrasonic vibrations are introduced, at least one vibrational mode in which the distance of the cylinder wall from the central longitudinal axis of said cylinder periodically changes.
EP02712176A 2002-02-07 2002-02-21 Dispersing device Expired - Lifetime EP1471993B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10204921 2002-02-07
DE10204921A DE10204921C1 (en) 2002-02-07 2002-02-07 Dispersing apparatus
PCT/IB2002/000546 WO2003066203A1 (en) 2002-02-07 2002-02-21 Dispersing device

Publications (2)

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

Family

ID=27674570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02712176A Expired - Lifetime EP1471993B1 (en) 2002-02-07 2002-02-21 Dispersing device

Country Status (4)

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

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Also Published As

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

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