EP2403632B1 - Comminuting and dispersing apparatus - Google Patents

Comminuting and dispersing apparatus Download PDF

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Publication number
EP2403632B1
EP2403632B1 EP09775844A EP09775844A EP2403632B1 EP 2403632 B1 EP2403632 B1 EP 2403632B1 EP 09775844 A EP09775844 A EP 09775844A EP 09775844 A EP09775844 A EP 09775844A EP 2403632 B1 EP2403632 B1 EP 2403632B1
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EP
European Patent Office
Prior art keywords
rotor
stator
substances
processing chamber
processing
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EP09775844A
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German (de)
French (fr)
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EP2403632A1 (en
Inventor
Thomas Merle
Stefan Wienberg
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FrymaKoruma AG
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FrymaKoruma AG
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Priority to PL09775844T priority Critical patent/PL2403632T3/en
Publication of EP2403632A1 publication Critical patent/EP2403632A1/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
    • 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
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/10—Crushing or disintegrating by disc mills with eccentric discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B01F25/52—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle with a rotary stirrer in the recirculation tube
    • 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
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B01F27/2722—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces provided with ribs, ridges or grooves on one surface
    • 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
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B01F27/2723—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces the surfaces having a conical shape
    • 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
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B01F27/2724—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces the relative position of the stator and the rotor, gap in between or gap with the walls being adjustable

Definitions

  • the invention relates to a device for dispersing in particular liquid to viscous substance mixtures and for comminuting particles and suspensions, with a batch container with one or more openings for introducing the substances to be processed and one or more openings for discharging the processing substances, and a process chamber with a Rotor and a stator, wherein the rotor for the purpose of processing substances introduced into the process chamber is rotatably mounted relative to the stator about a rotation axis.
  • Dispersing devices of the type mentioned in the prior art are usually used to mix liquid or viscous substances with other liquid, viscous or powdery substances so or crushing to produce a substantially homogeneous and non-agglomerated mass.
  • the known dispersing devices have the disadvantage that a reliable and effective processing of substances with very different properties such as granularity in powders or viscosity in liquids is not guaranteed.
  • a dispersing device of the type mentioned is out DE 296 08 713 U1 known.
  • teeth and / or approaches are provided in this device, which are designed so that the shear gap volume changes disproportionately when adjusting the axial distance between the rotor and stator.
  • the object of the invention is to provide a device by means of which a reliable and effective processing of substances with very different properties such as homogeneity, granularity in powders or viscosity in liquids is possible.
  • the stator has a machining surface which is inclined relative to the axis of rotation of the rotor at an angle W1 and the rotor has a machining surface which is inclined relative to the axis of rotation of the rotor at an angle W2> W1 is such that the working surfaces of stator and rotor face each other at an acute angle and between the rotor and stator is formed in the cross-section hollow conical process chamber in which the incoming substances are dispersed, crushed and homogenized, achieved that a high degree of variability is given in the positioning of the opposing working surfaces of the rotor and stator.
  • the process chamber is oriented such that the incoming substances are transported radially outward in the direction of an exit region from an input region along the machining surfaces of the stator and rotor.
  • the input region of the process chamber is formed wider than the output region.
  • the processing surface of the stator and the rotor have a predetermined surface structure.
  • a surface structure will be formed of a plurality of straight formed protrusions.
  • the stator is mounted axially reciprocally displaceable in the direction of the rotor and displaceable by means of a displacement device within a predetermined stroke in the direction of the rotor and thereby lockable in any position to the volume of the process chamber pretend.
  • the stator can preferably be displaceably mounted within an outer housing of the device and be provided with an external thread, wherein the displacement device comprises a guided through a recess of the outer housing and rotatably mounted on the outer housing mounted mandrel which engages in the external thread of the stator.
  • the mandrel can be controlled rotatable by means of an electric motor drive.
  • a mixing chamber provided with a rotatable mixing blade is preferably provided for supplying further substances into the process chamber.
  • an inducer screw is preferably provided between the mixing blade and the process chamber, which presses the substances mixed in the mixing chamber in the direction of the process chamber.
  • the mixing blade, the Inducerschraube and the rotor are preferably mounted on a common shaft.
  • a receiving chamber for processed substances which is provided with an outlet opening to be provided downstream of the outlet area of the process chamber.
  • a rotatable distributor blade can be provided in the receiving chamber, which can preferably be connected at least indirectly to the rotor.
  • the substances can be at least partially fed back into the batch container and / or into the mixing chamber in the device according to the invention, starting from the outlet opening of the receiving chamber.
  • the speed of the motor driving the rotor, the mixing blade, the inducer screw is preferably adjustable and thus adaptable to the viscosity and / or granularity of the substances to be processed.
  • the rotor is divided into an upper and a lower part, wherein the processing surface of the upper part of the rotor is formed bent inwardly in an impact region of the substances to be processed.
  • the in the FIGS. 1 and 4 illustrated inventive device (100) for dispersing in particular liquid to viscous substance mixtures and for crushing granular mixtures of substances and suspensions contains a Batch container having an opening (120) and an additional opening (121) for introducing the substances and an opening (130) for discharging the processed substances, and a process chamber (140) having a rotor (150) and a stator (160), wherein the rotor (150) for the purpose of dispersing introduced into the process chamber (140) substances relative to the stator (160) is rotatably mounted about a rotation axis (155).
  • the stator (160) has a working surface (161) inclined with respect to the rotational axis (155) of the rotor (150) at an angle W1 and the rotor (150) has a working surface (151) opposite to the rotational axis (155) of the rotor (150) is inclined at an angle W2> W1, with the machining surfaces (161, 151) of the stator (160) and the rotor (150) facing each other at an acute angle.
  • the hollow-conical process chamber (140) in which the incoming substances are dispersed, comminuted and homogenized.
  • the process chamber (140) is oriented so that the incoming substances are transported from an entrance area (143) along the processing surfaces (161, 151) of the stator (160) and rotor (150) radially outward towards an exit area (144).
  • the input region (143) is wider than the output region (144).
  • the rotor (150) is further divided into upper and lower parts, and the processing surface (151) of the upper part of the rotor (150) is bent inwardly in an impact area of the substances to be processed.
  • the stator (160) is axially reciprocally displaceable in the direction of the rotor (150) and can be displaced in the direction of the rotor (150) by means of a displacement device (170) within a predetermined stroke range and can be locked in any desired position in order to increase the volume of the process chamber ( 140).
  • stator (160) is displaceably mounted within an outer housing (101) of the device and provided with an external thread (162), wherein the displacement device (170) rotates through a recess of the outer housing (101) and rotates on the outer housing (101) mounted mandrel (103) which engages in the external thread (162) of the stator (160).
  • the mandrel (103) is controlled rotatable by means of an electric motor drive.
  • a rotatable mixing blade (112) mixing chamber (111) for supplying further substances in the process chamber (140).
  • an inducer screw (113) which the substances mixed in the mixing chamber (111) push in the direction of the process chamber (140).
  • the mixing blade (112), the Inducerschraube (113) and the rotor (150) are mounted on a common shaft (152).
  • a processed substance receiving chamber Downstream of the exit region (144) of the process chamber (140) there is provided a processed substance receiving chamber (141) provided with an exit port (130).
  • a rotatable distributor blade In the receiving chamber (141) a rotatable distributor blade (142) is provided, which is connected to the speed-adjustable rotor (150).
  • the processed substances are at least partially fed back into the mixing chamber starting from the outlet opening (142) of the receiving chamber (141).

Description

Die Erfindung betrifft eine Vorrichtung zum Dispergieren insbesondere flüssiger bis zähflüssiger Substanzgemische sowie zum Zerkleinern von Partikeln und Suspensionen, mit einem Chargenbehälter mit einer oder mehr Öffnungen zum Einleiten der zu bearbeitenden Substanzen sowie einer oder mehr Öffnungen zum Ausleiten der bearbeitenden Substanzen, sowie einer Prozesskammer mit einem Rotor und einem Stator, wobei der Rotor zum Zweck des Bearbeitens von in die Prozesskammer 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 and for comminuting particles and suspensions, with a batch container with one or more openings for introducing the substances to be processed and one or more openings for discharging the processing substances, and a process chamber with a Rotor and a stator, wherein the rotor for the purpose of processing substances introduced into the process chamber is rotatably mounted relative to the stator about a rotation axis.

Dispergier-Vorrichtungen der eingangs genannten Art werden im Stand der Technik in der Regel dazu verwendet, flüssige oder zähflüssige Substanzen mit anderen flüssigen, zähflüssigen oder pulverförmigen Substanzen so zu mischen oder zu zerkleinern, dass eine im wesentlichen homogene und nicht agglomerierte Masse entsteht. Die bekannten Dispergier-Vorrichtungen weisen jedoch den Nachteil auf, dass eine zuverlässige und wirksame Bearbeitung von Substanzen mit sehr unterschiedlichen Eigenschaften wie Körnigkeit bei Pulvern oder Viskosität bei Flüssigkeiten nicht gewährleistet ist.Dispersing devices of the type mentioned in the prior art are usually used to mix liquid or viscous substances with other liquid, viscous or powdery substances so or crushing to produce a substantially homogeneous and non-agglomerated mass. However, the known dispersing devices have the disadvantage that a reliable and effective processing of substances with very different properties such as granularity in powders or viscosity in liquids is not guaranteed.

Eine Dispergier-Vorrichtung der eingangs genannten Art ist aus DE 296 08 713 U1 bekannt. Um hochviskose Stoffe in kurzer Zeit zu vermischen sind bei dieser Vorrichtung Zähne und/oder Ansätze vorgesehen, die so ausgebildet sind, dass sich bei Verstellung des Axialabstandes zwischen Rotor und Stator das Scherspaltvolumen überproportional ändert.A dispersing device of the type mentioned is out DE 296 08 713 U1 known. In order to mix high-viscosity substances in a short time teeth and / or approaches are provided in this device, which are designed so that the shear gap volume changes disproportionately when adjusting the axial distance between the rotor and stator.

Aus DE 825 084 ist des Weiteren eine Vorrichtung zum Schallschwingungsbehandeln von Stoffen bekannt, bei der zum Zweck einer gleichmäßigen intensiven Beschallung ein Durchtrittsspalt für die zu behandelnden Stoffe vorgesehen ist, dessen Weite periodisch mit Schallschwingungsfrequenz veränderbar ist.Out DE 825 084 Furthermore, a device for sound vibration treatment of substances is known, in which for the purpose of a uniform intense sounding a passage gap is provided for the substances to be treated, the width of which is periodically variable with sonic vibration frequency.

DE 20 2007 012 740 U1 offenbart eine Vorrichtung gemäβ dem Oberbegriff des Anspruchs 1. DE 20 2007 012 740 U1 discloses a device according to the preamble of claim 1.

Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, mittels derer eine zuverlässige und wirksame Bearbeitung von Substanzen mit sehr unterschiedlichen Eigenschaften wie Homogenität, Körnigkeit bei Pulvern oder Viskosität bei Flüssigkeiten ermöglicht ist.The object of the invention is to provide a device by means of which a reliable and effective processing of substances with very different properties such as homogeneity, granularity in powders or viscosity in liquids is possible.

Für eine Vorrichtung der eingangs genannten Art wird diese Aufgabe durch eine Vorrichtung gemäβ Anspruch 1 gelöst.For a device of the type mentioned, this object is achieved by a device according to claim 1.

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 der Stator eine Bearbeitungsfläche aufweist, die gegenüber der Rotationsachse des Rotors in einem Winkel W1 geneigt angeordnet ist und der Rotor eine Bearbeitungsfläche aufweist, die gegenüber der Rotationsachse des Rotors in einem Winkel W2 > W1 geneigt angeordnet ist, derart, dass sich die Bearbeitungsflächen von Stator und Rotor in einem spitzen Winkel gegenüberstehen und zwischen Rotor und Stator die im Querschnitt hohlkonische Prozesskammer ausgebildet ist, in der die eingeleitenden Substanzen dispergiert, zerkleinert und homogenisiert werden, erreicht, dass ein hohes Maß an Variabilität bei der Positionierung der sich gegenüber stehenden Bearbeitungsflächen von Rotor und Stator gegeben ist. Es können dabei zum einen Bearbeitungsflächen mit an unterschiedliche Aufgaben angepassten Oberflächenstrukturen Verwendung finden, und es kann die Rotationsgeschwindigkeit des Rotors und die Breite des Hohlraumes zwischen den Bearbeitungsflächen von Rotor und Stator variiert werden. Darüber hinaus sind bei der erfindungsgemäßen Vorrichtung zum Einen eine sehr robuste und zum Anderen eine sehr genaue Steuerung der Position des axial verschiebbar gelagerten Stators gegeben.In the flange device according to the invention is characterized by the combination of features that the stator has a machining surface which is inclined relative to the axis of rotation of the rotor at an angle W1 and the rotor has a machining surface which is inclined relative to the axis of rotation of the rotor at an angle W2> W1 is such that the working surfaces of stator and rotor face each other at an acute angle and between the rotor and stator is formed in the cross-section hollow conical process chamber in which the incoming substances are dispersed, crushed and homogenized, achieved that a high degree of variability is given in the positioning of the opposing working surfaces of the rotor and stator. On the one hand, working surfaces with surface structures adapted to different tasks can be used, and the rotational speed of the rotor and the width of the cavity between the machining surfaces of the rotor and stator can be varied. Moreover, in the device according to the invention on the one hand a very robust and on the other a very precise control of the position of the axially displaceably mounted stator.

Gemäß der erfindungsgemäßen Vorrichtung ist vorgesehen, dass die Prozesskammer so orientiert ist, dass die eingeleitenden Substanzen von einem Eingangsbereich entlang den Bearbeitungsflächen von Stator und Rotor radial nach außen in Richtung eines Ausgangsbereichs transportiert werden.According to the device according to the invention, it is provided that the process chamber is oriented such that the incoming substances are transported radially outward in the direction of an exit region from an input region along the machining surfaces of the stator and rotor.

Gemäß der erfindungsgemäßen Vorrichtung ist vorgesehen, dass der Eingangsbereich der Prozesskammer breiter als der Ausgangsbereich ausgebildet ist.According to the device according to the invention it is provided that the input region of the process chamber is formed wider than the output region.

Gemäß der erfindungsgemäßen Vorrichtung ist vorgesehen, dass die Bearbeitungsfläche des Stators sowie des Rotors eine vorgegebene Oberflächenstruktur aufweisen. Eine Oberflächenstruktur wird einer Mehrzahl gerade ausgebildeter Vorsprünge gebildet sein.According to the device according to the invention it is provided that the processing surface of the stator and the rotor have a predetermined surface structure. A surface structure will be formed of a plurality of straight formed protrusions.

Gemäß einer anderen wichtigen bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass der Stator in Richtung des Rotors axial reziprozierbar verschiebbar gelagert ist und mittels einer Verschiebeeinrichtung innerhalb eines vorgegebenen Hubbereiches in Richtung des Rotors verschiebbar und dabei in beliebiger Position arretierbar ist, um das Volumen der Prozesskammer vorzugeben.According to another important preferred embodiment of the device according to the invention it is provided that the stator is mounted axially reciprocally displaceable in the direction of the rotor and displaceable by means of a displacement device within a predetermined stroke in the direction of the rotor and thereby lockable in any position to the volume of the process chamber pretend.

Der Stator kann dabei vorzugsweise innerhalb eines Außengehäuses der Vorrichtung verschiebbar gelagert und mit einem Außengewinde versehen sein, wobei die Verschiebeeinrichtung einen durch eine Aussparung des Außengehäuses geführten und an dem Außengehäuse rotierbar gelagerter Dorn enthält, der in das Außengewinde des Stators eingreift. Der Dorn kann dabei mittels eines elektromotorischen Antriebs gesteuert rotierbar sein.The stator can preferably be displaceably mounted within an outer housing of the device and be provided with an external thread, wherein the displacement device comprises a guided through a recess of the outer housing and rotatably mounted on the outer housing mounted mandrel which engages in the external thread of the stator. The mandrel can be controlled rotatable by means of an electric motor drive.

Zwischen dem Chargenbehälter und der Prozesskammer ist vorzugsweise eine mit einem rotierbaren Mischflügel versehene Mischkammer zur Zuleitung weiterer Substanzen in die Prozesskammer vorgesehen. Zwischen dem Mischflügel und der Prozesskammer ist des Weiteren vorzugsweise eine Inducerschraube vorgesehen ist, die die in der Mischkammer durchmischten Substanzen in Richtung der Prozesskammer drückt. Der Mischflügel, die Inducerschraube und der Rotor sind vorzugsweise auf einer gemeinsamen Welle gelagert.Between the charge container and the process chamber, a mixing chamber provided with a rotatable mixing blade is preferably provided for supplying further substances into the process chamber. Furthermore, an inducer screw is preferably provided between the mixing blade and the process chamber, which presses the substances mixed in the mixing chamber in the direction of the process chamber. The mixing blade, the Inducerschraube and the rotor are preferably mounted on a common shaft.

Gemäß einer weiteren bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass stromabwärts des Ausgangsbereichs der Prozesskammer eine mit einer Ausgangsöffnung versehene Aufnahmekammer für prozessierte Substanzen vorgesehen ist. In der Aufnahmekammer kann ein rotierbarer Verteilerflügel vorgesehen sein, der vorzugsweise zumindest indirekt mit dem Rotor verbunden sein kann.According to a further preferred embodiment of the device according to the invention, provision is made for a receiving chamber for processed substances which is provided with an outlet opening to be provided downstream of the outlet area of the process chamber. A rotatable distributor blade can be provided in the receiving chamber, which can preferably be connected at least indirectly to the rotor.

Die Substanzen sind bei der erfindungsgemäßen Vorrichtung ausgehend von der Ausgangsöffnung der Aufnahmekammer zumindest teilweise in den Chargenbehälter und/oder in die Mischkammer zurückleitbar.The substances can be at least partially fed back into the batch container and / or into the mixing chamber in the device according to the invention, starting from the outlet opening of the receiving chamber.

Die Drehzahl des den Rotor, den Mischflügel, die Inducerschraube treibenden Motors ist vorzugsweise einstellbar und dadurch an die Viskosität und/oder Körnigkeit der zu prozessierenden Substanzen anpassbar.The speed of the motor driving the rotor, the mixing blade, the inducer screw is preferably adjustable and thus adaptable to the viscosity and / or granularity of the substances to be processed.

Gemäß einer weiteren bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass der Rotor in einen oberen und einen unteren Teil unterteilt ist, wobei die Bearbeitungsfläche der oberen Teils des Rotors in einem Auftreffbereich der zu prozessierenden Substanzen nach innen gebogen ausgebildet ist.According to a further preferred embodiment of the device according to the invention it is provided that the rotor is divided into an upper and a lower part, wherein the processing surface of the upper part of the rotor is formed bent inwardly in an impact region of the substances to be processed.

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

Fig. 1
eine bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht.
Fig. 2
den Rotor der in Figur 1 dargestellten bevorzugten Ausführungsform der Vorrichtung in einer Seitenansicht.
Fig. 3
den Rotor der in Figur 1 dargestellten weiteren bevorzugten Ausführungsform der Vorrichtung in einer Seitenansicht.
Fig. 4
den Rotor der in Figur 1 dargestellten weiteren bevorzugten Ausführungsform der Vorrichtung in einer Seitenansicht.
The device according to the invention is explained below with reference to a preferred embodiment, which is shown in the figure of the drawing. Show:
Fig. 1
a preferred embodiment of the device according to the invention in a cross-sectional view.
Fig. 2
the rotor of in FIG. 1 illustrated preferred embodiment of the device in a side view.
Fig. 3
the rotor of in FIG. 1 illustrated further preferred embodiment of the device in a side view.
Fig. 4
the rotor of in FIG. 1 illustrated further preferred embodiment of the device in a side view.

Die in den Figuren 1 und 4 dargestellte erfindungsgemäße Vorrichtung (100) zum Dispergieren insbesondere flüssiger bis zähflüssiger Substanzgemische sowie zum Zerkleinern körniger Substanzgemische und Suspensionen enthält einen Chargenbehälter mit einer Öffnung (120) sowie einer zusätzlichen Öffnung (121) zum Einleiten der zu Substanzen sowie einer Öffnung (130) zum Ausleiten der bearbeiteten Substanzen, sowie eine Prozesskammer (140) mit einem Rotor (150) und einem Stator (160), wobei der Rotor (150) zum Zweck des Dispergierens von in die Prozesskammer (140) eingeleiteten Substanzen gegenüber dem Stator (160) um eine Rotationsachse (155) drehbar gelagert ist.The in the FIGS. 1 and 4 illustrated inventive device (100) for dispersing in particular liquid to viscous substance mixtures and for crushing granular mixtures of substances and suspensions contains a Batch container having an opening (120) and an additional opening (121) for introducing the substances and an opening (130) for discharging the processed substances, and a process chamber (140) having a rotor (150) and a stator (160), wherein the rotor (150) for the purpose of dispersing introduced into the process chamber (140) substances relative to the stator (160) is rotatably mounted about a rotation axis (155).

Der Stator (160) weist eine Bearbeitungsfläche (161) auf, die gegenüber der Rotationsachse (155) des Rotors (150) in einem Winkel W1 geneigt angeordnet ist und der Rotor (150) weist eine Bearbeitungsfläche (151) auf, die gegenüber der Rotationsachse (155) des Rotors (150) in einem Winkel W2 > W1 geneigt angeordnet ist, wobei sich die Bearbeitungsflächen (161, 151) von Stator (160) und Rotor (150) in einem spitzen Winkel gegenüberstehen. Zwischen Rotor (150) und Stator (160) ist die im Querschnitt hohlkonische Prozesskammer (140) ausgebildet, in der die eingeleitenden Substanzen dispergiert, zerkleinert und homogenisiert werden.The stator (160) has a working surface (161) inclined with respect to the rotational axis (155) of the rotor (150) at an angle W1, and the rotor (150) has a working surface (151) opposite to the rotational axis (155) of the rotor (150) is inclined at an angle W2> W1, with the machining surfaces (161, 151) of the stator (160) and the rotor (150) facing each other at an acute angle. Between the rotor (150) and stator (160) is formed the hollow-conical process chamber (140), in which the incoming substances are dispersed, comminuted and homogenized.

Die Prozesskammer (140) ist so orientiert, dass die eingeleitenden Substanzen von einem Eingangsbereich (143) entlang den Bearbeitungsflächen (161, 151) von Stator (160) und Rotor (150) radial nach außen in Richtung eines Ausgangsbereichs (144) transportiert werden. Der Eingangsbereich (143) ist dabei breiter als der Ausgangsbereich (144) ausgebildet.The process chamber (140) is oriented so that the incoming substances are transported from an entrance area (143) along the processing surfaces (161, 151) of the stator (160) and rotor (150) radially outward towards an exit area (144). The input region (143) is wider than the output region (144).

Wie in Figur 2 dargestellt ist der Rotor (150) des Weiteren in einen oberen und einen unteren Teil unterteilt, wobei die Bearbeitungsfläche (151) der oberen Teils des Rotors (150) in einem Auftreffbereich der zu bearbeitenden Substanzen nach innen gebogen ausgebildet ist.As in FIG. 2 That is, the rotor (150) is further divided into upper and lower parts, and the processing surface (151) of the upper part of the rotor (150) is bent inwardly in an impact area of the substances to be processed.

Der Stator (160) ist in Richtung des Rotors (150) axial reziprozierbar verschiebbar gelagert und mittels einer Verschiebeeinrichtung (170) innerhalb eines vorgegebenen Hubbereiches in Richtung des Rotors (150) verschiebbar und dabei in beliebiger Position arretierbar ist, um das Volumen der Prozesskammer (140) vorzugeben.The stator (160) is axially reciprocally displaceable in the direction of the rotor (150) and can be displaced in the direction of the rotor (150) by means of a displacement device (170) within a predetermined stroke range and can be locked in any desired position in order to increase the volume of the process chamber ( 140).

Dabei ist der Stator (160) innerhalb eines Außengehäuses (101) der Vorrichtung verschiebbar gelagert und mit einem Außengewinde (162) versehen, wobei die Verschiebeeinrichtung (170) einen durch eine Aussparung des Außengehäuses (101) geführten und an dem Außengehäuse (101) rotierbar gelagerten Dorn (103) enthält, der in das Außengewinde (162) des Stators (160) eingreift. Der Dorn (103) ist dabei mittels eines elektromotorischen Antriebs gesteuert rotierbar.In this case, the stator (160) is displaceably mounted within an outer housing (101) of the device and provided with an external thread (162), wherein the displacement device (170) rotates through a recess of the outer housing (101) and rotates on the outer housing (101) mounted mandrel (103) which engages in the external thread (162) of the stator (160). The mandrel (103) is controlled rotatable by means of an electric motor drive.

Zwischen dem Chargenbehälter und der Prozesskammer (140) ist eine mit einem rotierbaren Mischflügel (112) versehene Mischkammer (111) zur Zuleitung weiterer Substanzen in die Prozesskammer (140) vorgesehen.Between the batch container and the process chamber (140) is provided with a rotatable mixing blade (112) mixing chamber (111) for supplying further substances in the process chamber (140).

Zwischen dem Mischflügel (112) und der Prozesskammer (140) ist des Weiteren eine Inducerschraube (113) vorgesehen, die die in der Mischkammer (111) durchmischten Substanzen in Richtung der Prozesskammer (140) drückt. Der Mischflügel (112), die Inducerschraube (113) und der Rotor (150) sind dabei auf einer gemeinsamen Welle (152) gelagert.Between the mixing blade (112) and the process chamber (140) is further provided an inducer screw (113) which the substances mixed in the mixing chamber (111) push in the direction of the process chamber (140). The mixing blade (112), the Inducerschraube (113) and the rotor (150) are mounted on a common shaft (152).

Stromabwärts des Ausgangsbereichs (144) der Prozesskammer (140) ist eine mit einer Ausgangsöffnung (130) versehene Aufnahmekammer (141) für prozessierte Substanzen vorgesehen. In der Aufnahmekammer (141) ist ein rotierbarer Verteilerflügel (142) vorgesehen, der mit dem in seiner Drehzahl einstellbaren Rotor (150) verbunden.Downstream of the exit region (144) of the process chamber (140) there is provided a processed substance receiving chamber (141) provided with an exit port (130). In the receiving chamber (141) a rotatable distributor blade (142) is provided, which is connected to the speed-adjustable rotor (150).

Die prozessierten Substanzen sind ausgehend von der Ausgangsöffnung (142) der Aufnahmekammer (141) zumindest teilweise in die Mischkammer zurückleitbar.The processed substances are at least partially fed back into the mixing chamber starting from the outlet opening (142) of the receiving chamber (141).

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 (14)

  1. A device (100) for dispersing particularly liquid to viscous substance mixtures and for comminuting granular substance mixtures and suspensions, comprising a batch container (110) having one or more orifices (120) for introducing the substances to be processed and one of more orifices (130) for discharging said processed substances, and a processing chamber (140) comprising a rotor (150) and a stator (160), which rotor (150) is mounted for rotation relatively to said stator (160) about a rotation axis (155) for the purpose of dispersing substances introduced into said processing chamber (140), said stator (160) having a processing surface (161) that is tilted at an angle W1 relative to the rotation axis (155) of said rotor (150), whilst said rotor (150) has a processing surface (151) that is tilted at an angle W2 > W1 relative to said rotation axis (155) of said rotor (150) such that said processing surfaces (161, 151) of said stator (160) and rotor (150) face each other at an acute angle, wherein said processing chamber (140), having a hollow conical cross-section, is formed between said rotor (150) and said stator (160), in which the introduced substances are dispersed, comminuted, and homogenized, wherein said processing chamber (140) is oriented such that the substances introduced are transported from an inlet region (143) along said processing surfaces (161, 151) of said stator (160) and rotor (150) radially outwardly direction towards an outlet region (144) and said inlet region (143) of said processing chamber (140) is wider than said outlet region (144) of said processing chamber (140), characterized in that said processing surfaces (151, 161) of said rotor (158) and said stator (160) have a specific surface structure formed by a plurality of straight protrusions.
  2. The device as defined in claim 1, characterized in that said stator (160) is mounted so as to be reciprocally displaceable in the axial direction towards and away from said rotor (150) and is capable of being displaced by means of a shifting device (170) towards and away from said rotor over a specific distance range and of being locked in any desired position, in order to control the volume of said processing chamber (140).
  3. The device as defined in claim 2, characterized in that said stator (160) is mounted for displacement inside an external housing (101) of said processing device (100), and is provided with an external screw thread (162), and said shifting device (170) comprises a mandrel (103) that is guided through an opening (102) in said external housing (101) and is mounted for rotation on said external housing (101) and that engages said external screw thread (162) of said stator (160).
  4. The device as defined in claim 3, characterized in that the speed of rotation of said mandrel (103) is controlled by an electric motor.
  5. The device as defined in any one of the previous claims, characterized in that a mixing chamber (111), provided with a rotatable blending vane (112), is disposed between said batch container and said processing chamber (140) for the purpose of topping up said processing chamber (140).
  6. The device as defined in claim 5, characterized in that a conveyor screw (113) is provided between said blending vane (112) and said processing chamber (140), which conveyor screw (113) is adapted to urge the substances mixed in said mixing chamber (111) towards said processing chamber (140).
  7. The device as defined in claim 5 or claim 6, characterized in that said blending vane (112), said conveyor screw (113), and said rotor (150) are mounted on a common shaft (152).
  8. The device as defined in any one of the previous claims, characterized in that a receptacle (141), adapted to receive processed substances and provided with an outlet orifice (130), is disposed downstream of said outlet region (144) of said processing chamber (140).
  9. The device as defined in claim 8, characterized in that a rotatable distribution blade (142) is provided in said receptacle (141).
  10. The device as defined in claim 9, characterized in that said distribution blade (142) is at least indirectly connected to said rotor (150).
  11. The device as defined in any one of claims 8 to 11, characterized in that the processed substances are capable of being recycled, at least in part, to said batch container from said outlet orifice (130) of said receptacle (141).
  12. The device as defined in any one of claims 8 to 11, characterized in that the processed substances are capable of being recycled, at least in part, to said mixing chamber (111) from said outlet orifice (130) of said receptacle (141).
  13. The device as defined in any one of said previous claims, characterized in that the rotational speed of said rotor (150) can be varied.
  14. The device as defined in any one of the previous claims, characterized in that said rotor (150) is divided into top and bottom portions, and said processing surface (151) of said top portion of said rotor (150) is curved inwardly in a region of impact with the substances being processed.
EP09775844A 2009-03-06 2009-03-06 Comminuting and dispersing apparatus Active EP2403632B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09775844T PL2403632T3 (en) 2009-03-06 2009-03-06 Comminuting and dispersing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2009/000318 WO2010099767A1 (en) 2009-03-06 2009-03-06 Comminuting and dispersing apparatus

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EP2403632A1 EP2403632A1 (en) 2012-01-11
EP2403632B1 true EP2403632B1 (en) 2013-03-27

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US (1) US9174218B2 (en)
EP (1) EP2403632B1 (en)
PL (1) PL2403632T3 (en)
WO (1) WO2010099767A1 (en)

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WO2020156805A1 (en) 2019-02-01 2020-08-06 Ystral Gmbh Maschinenbau + Processtechnik Rotor for a device for mixing powder and liquid, and device for mixing powder and liquid

Also Published As

Publication number Publication date
US20110315799A1 (en) 2011-12-29
US9174218B2 (en) 2015-11-03
WO2010099767A1 (en) 2010-09-10
PL2403632T3 (en) 2013-09-30
EP2403632A1 (en) 2012-01-11

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