EP1471993A1 - Dispersing device - Google Patents

Dispersing device

Info

Publication number
EP1471993A1
EP1471993A1 EP02712176A EP02712176A EP1471993A1 EP 1471993 A1 EP1471993 A1 EP 1471993A1 EP 02712176 A EP02712176 A EP 02712176A EP 02712176 A EP02712176 A EP 02712176A EP 1471993 A1 EP1471993 A1 EP 1471993A1
Authority
EP
European Patent Office
Prior art keywords
container
stator
rotor
substances
face
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
EP02712176A
Other languages
German (de)
French (fr)
Other versions
EP1471993B1 (en
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
Romaco 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 Romaco AG, FrymaKoruma GmbH filed Critical Romaco AG
Publication of EP1471993A1 publication Critical patent/EP1471993A1/en
Application granted granted Critical
Publication of EP1471993B1 publication Critical patent/EP1471993B1/en
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
    • 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 a rotation axis.
  • 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 well-known Dispergier 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.
  • the object of the invention is therefore 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.
  • stator is mounted reciprocally in the direction of the axis of rotation of the rotor and by means of a displacement device within a predetermined Hub Suitees displaceable and thereby lockable in any position.
  • the flange device is characterized by the feature that the stator is mounted reciprocally in the direction of the axis of rotation of the rotor and by means of a displacement device within a predetermined Hub Schlos displaced and thereby locked in any position, achieved that a dispersing device is provided by means of which by axial displacement of the stator from the dispersing an intensive pumping action is generated. 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 displacement device includes a provided on the outer wall of the container sliding thread with a double external thread with two spaced 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 via a guided through a slot in the container wall mandrel with the mother.
  • 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.
  • 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 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 formed positioned vertically above, wherein above the container, a container having an upper cylindrical portion and a lower conical or spherical cutout portion is provided, wherein the conical or spherical cutout part opens into an upper part of the container, or in 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 substantially as a hollow cylinder with a partially open and an open end face, wherein it automatically assumes at least one waveform when introducing transversal ultrasonic vibrations in the partially open end face, in which the distance of the Cylinder wall periodically changes from the central cylinder longitudinal axis.
  • FIG. 1 shows a first preferred embodiment of the device according to the invention in a cross-sectional view
  • FIG. 2 shows an enlarged detail of the preferred embodiment of the device according to the invention shown in FIG. 1 in a cross-sectional view;
  • FIG. 3 shows an enlarged detail of the preferred embodiment of the device according to the invention shown in FIG. 2 in a cross-sectional view.
  • FIG. 4 shows an enlarged detail of the preferred embodiment of the device according to the invention shown in FIG. 3 in a cross-sectional view.
  • 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 'in each case by a Rotation axis 155, 165 are rotatably mounted.
  • 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 formed as a hollow cylinder with a closed, a bottom 151, 161 forming 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 system 500 opens from an opening 430 for discharging dispersed substances in the conical part 420 of the container 400, and another piping system 510 opens from an opening 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.

Landscapes

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

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

DISPERGIER-VORRICHTUNG DISPERSING DEVICE
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.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 a rotation axis.
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. The well-known Dispergier devices, however, 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.
Aufgabe der Erfindung ist es deshalb, 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 therefore 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 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 ist.For a device of the type mentioned above, this object is achieved in that the stator is mounted reciprocally 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.
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 das Merkmal, dass 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 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 feature that the stator is mounted reciprocally in the direction of the axis of rotation of the rotor and by means of a displacement device within a predetermined Hubbereiches displaced and thereby locked in any position, achieved that a dispersing device is provided by means of which by axial displacement of the stator from the dispersing an intensive pumping action is generated. 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 die Verschiebeeinrichtung ein an der Außenwand des Behälters vorgesehenes Verschiebegewinde mit einem 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.According to a first preferred embodiment of the device according to the invention it is provided that the displacement device includes a provided on the outer wall of the container sliding thread with a double external thread with two spaced 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 via a guided through a slot in the container wall mandrel with the mother.
Gemäß einer weiteren 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. Gemäß einer weiteren 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 a further 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. According to a further 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 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 be able to introduce a large filling quantity into the container, the preferably hollow-cylindrical container is formed positioned vertically above, wherein above the container, a container having an upper cylindrical portion and a lower conical or spherical cutout portion is provided, wherein the conical or spherical cutout part opens into an upper part of the container, or in 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 substantially as a hollow cylinder with a partially open and an open end face, wherein it automatically assumes at least one waveform when introducing transversal ultrasonic vibrations in the partially open end face, in which the distance of the Cylinder wall periodically changes from the central cylinder longitudinal axis.
Die erfindungsgemäße Vorrichtung wird im folgenden anhand einer bevorzugten Ausführungsform erläutert, die in den Figuren der Zeichnung dargestellt ist. Darin zeigen: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 eine erste bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht;1 shows a first preferred embodiment of the device according to the invention in a cross-sectional view;
Fig. 2 einen vergrößerten Ausschnitt der in Fig. 1 dargestellten bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht;FIG. 2 shows an enlarged detail of the preferred embodiment of the device according to the invention shown in FIG. 1 in a cross-sectional view; FIG.
Fig. 3 einen vergrößerten Ausschnitt der in Fig. 2 dargestellten bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht .3 shows an enlarged detail of the preferred embodiment of the device according to the invention shown in FIG. 2 in a cross-sectional view.
Fig. 4 einen vergrößerten Ausschnitt der in Fig. 3 dargestellten bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht.4 shows an enlarged detail of the preferred embodiment of the device according to the invention shown in FIG. 3 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 'in each case by a Rotation axis 155, 165 are rotatably mounted. 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 . 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 two rotors 150, 160 are substantially formed as a hollow cylinder with a closed, a bottom 151, 161 forming 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.
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 system 500 opens from an opening 430 for discharging dispersed substances in the conical part 420 of the container 400, and another piping system 510 opens from an opening 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

Patentansprüche Claims
1. 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, dadurch gekennzeichnet, dass 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 ist.1. Device for dispersing in particular liquid to viscous substance mixtures, with a container with 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, the at least one rotor for Purpose of dispersing substances introduced into the container relative to the stator is rotatably mounted about an axis of rotation, characterized in that the stator is mounted so that it can be reciprocated in the direction of the axis of rotation of the rotor and can be displaced within a predetermined stroke range by means of a displacement device and can be locked in any position .
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, 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.2. Device according to claim 1, characterized in that the displacement device contains a double external thread provided on the outer wall of the container with two individual threads arranged in parallel to form a clear space, one of which is a single thread. covering nut is rotatably displaceable along the double external thread and the stator is connected to the nut via a mandrel which is guided through an elongated hole in the container wall.
3. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rotor im wesentlichen als Hohlzylinder mit einer offenen und einer geschlossenen, einen Boden bildenden Stirnfläche ausgebildet ist. 3. Device according to one of the preceding claims, characterized in that the rotor is designed essentially as a hollow cylinder with an open and a closed end face forming a bottom.
4. Vorrichtung nach Ansprüche 3, dadurch gekennzeichnet, dass der Rotor im Bereich der offenen Stirnfläche mit koaxial angeordneten Zähnen versehen ist.4. Device according to claim 3, characterized in that the rotor is provided with coaxially arranged teeth in the region of the open end face.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stator im wesentlichen als Hohlzylinder mit einer teilweise offenen und einer offenen Stirnfläche ausgebildet ist.5. Device according to one of the preceding claims, characterized in that the stator is essentially designed as a hollow cylinder with a partially open and an open end face.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Stator im Bereich der offenen Stirnfläche mit koaxial angeordneten Zähnen versehen ist.6. The device according to claim 5, characterized in that the stator is provided in the region of the open end face with coaxially arranged teeth.
7. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Stator im Bereich der Mantelfläche des7. The device according to claim 5, characterized in that the stator in the region of the lateral surface of the
Hohlzylinders mit koaxial angeordneten Zähnen versehen ist.Hollow cylinder is provided with coaxially arranged teeth.
8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwei Rotoren vorgesehen sind, von denen einer in der Nachbarschaft der äußeren8. Device according to one of the preceding claims, characterized in that two rotors are provided, one of which in the vicinity of the outer
Mantelfläche des Stators und ein anderer in derLateral surface of the stator and another in the
Nachbarschaft der inneren Mantelfläche des Stators angeordnet ist.Neighboring the inner lateral surface of the stator is arranged.
9. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die von dem Stator sowie dem mindestens einen Rotor gebildete Dispergiereinheit zusätzlich mit konisch oder flach ausgebildeten Mahlwerkzeugen versehen ist.9. Device according to one of the preceding claims, characterized in that the dispersion unit formed by the stator and the at least one rotor is additionally provided with conical or flat grinding tools.
10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die koaxial verzahnten Dispergierwerkzeuge mehrstufig ausgeführt sind. 10. Device according to one of the preceding claims, characterized in that the coaxially toothed dispersing tools are designed in several stages.
11. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass innerhalb des Behälters ein oder mehr Vor ischflügel vorgesehen sind, die auf einer Welle gelagert sind, die entlang der Längsachse des Behälters ausgerichtet ist.11. Device according to one of the preceding claims, characterized in that one or more ischflügel before are provided within the container, which are mounted on a shaft which is aligned along the longitudinal axis of the container.
12. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass oberhalb des Behälters ein Container mit einem oberen zylindrischen Teil und einem unteren konischen Teil vorgesehen ist, wobei der konische Teil in einen oberen Teil des Behälters mündet.12. Device according to one of the preceding claims, characterized in that a container with an upper cylindrical part and a lower conical part is provided above the container, the conical part opening into an upper part of the container.
13. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, 'dass in dem Container ein Rührwerk vorgesehen ist.13. The apparatus according to claim 12, characterized in that ' an agitator is provided in the container.
14. Vorrichtung nach einem der Ansprüche 12 oder 13, dadurch gekennzeichnet, dass ein Rohrsystem vorgesehen ist, das ausgehend von einer Öffnung zum Ausleiten dispergierter Substanzen in dem konischen Teil des Containers mündet.14. Device according to one of claims 12 or 13, characterized in that a pipe system is provided which opens out from an opening for discharging dispersed substances in the conical part of the container.
15. Vorrichtung nach einem der Ansprüche 12 oder 13, dadurch gekennzeichnet, dass ein Rohrsystem vorgesehen ist, das ausgehend von einer Öffnung zum Ausleiten dispergierter Substanzen in dem zylindrischen Teil des Containers mündet.15. Device according to one of claims 12 or 13, characterized in that a pipe system is provided which opens out from an opening for discharging dispersed substances in the cylindrical part of the container.
16. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stator als Ultraschall- Sonotrode ausgebildet ist.16. Device according to one of the preceding claims, characterized in that the stator is designed as an ultrasonic sonotrode.
17. Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass die Ultraschall-Sonotrode im wesentlichen als Hohlzylinder mit einer teilweise offenen und einer offenen Stirnfläche ausgebildet ist und bei Einleiten von Ultraschallschwingungen mindestens eine Schwingungs orm aufweist, bei der sich der Abstand der 2ylinderwand von der zentralen Zylinderlängsachse periodisch ändert.17. The apparatus according to claim 16, characterized in that the ultrasonic sonotrode essentially as a hollow cylinder with a partially open and an open End face is formed and, when ultrasonic vibrations are introduced, has at least one vibration orm in which the distance of the cylinder wall from the central cylinder longitudinal axis changes periodically.
•λ- -k ~k - -k • λ- -k ~ k - -k
EP02712176A 2002-02-07 2002-02-21 Dispersing device Expired - Lifetime EP1471993B1 (en)

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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

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EP1471993B1 EP1471993B1 (en) 2007-01-17

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US7331540B2 (en) 2008-02-19
DE50209314D1 (en) 2007-03-08
EP1471993B1 (en) 2007-01-17
US20060016922A1 (en) 2006-01-26
DE10204921C1 (en) 2003-10-16

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