EP2403632A1 - Comminuting and dispersing apparatus - Google Patents

Comminuting and dispersing apparatus

Info

Publication number
EP2403632A1
EP2403632A1 EP09775844A EP09775844A EP2403632A1 EP 2403632 A1 EP2403632 A1 EP 2403632A1 EP 09775844 A EP09775844 A EP 09775844A EP 09775844 A EP09775844 A EP 09775844A EP 2403632 A1 EP2403632 A1 EP 2403632A1
Authority
EP
European Patent Office
Prior art keywords
rotor
substances
stator
process chamber
chamber
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
EP09775844A
Other languages
German (de)
French (fr)
Other versions
EP2403632B1 (en
Inventor
Thomas Merle
Stefan Wienberg
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
Original Assignee
FrymaKoruma AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FrymaKoruma AG filed Critical FrymaKoruma AG
Priority to PL09775844T priority Critical patent/PL2403632T3/en
Publication of EP2403632A1 publication Critical patent/EP2403632A1/en
Application granted granted Critical
Publication of EP2403632B1 publication Critical patent/EP2403632B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 having 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 known from DE 296 08 713 Ul.
  • 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.
  • DE 825 084 further discloses a device for sonic vibration treatment of substances in which a passage gap for the substances to be treated is provided for the purpose of uniform intensive sonication, the width of which is periodically variable with sonic vibration frequency.
  • 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.
  • stator has a machining surface which is arranged inclined relative to the axis of rotation of the rotor at an angle Wl and the rotor has a working surface has, which is arranged inclined relative to the axis of rotation of the rotor at an angle W2> Wl, such that the working surfaces of stator and rotor face each other at an acute angle and between rotor and stator is formed in the cross-section hollow conical process chamber in which the initiating Substances are dispersed, crushed and homogenized.
  • the stator has a machining surface which is inclined relative to the axis of rotation of the rotor at an angle Wl and the rotor has a machining surface which is inclined relative to the axis of rotation of the rotor at an angle W2> Wl 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 prefferably to be oriented in such a way 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.
  • Input region of the process chamber is formed wider than the output region.
  • the machining surface of the stator and / or of the rotor have a predetermined surface structure.
  • a surface structure may be formed by a plurality of straight or curved projections or notches.
  • 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 locked 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.
  • Fig. 1 shows a preferred embodiment of the device according to the invention in a cross-sectional view.
  • Fig. 2 shows the rotor of the preferred embodiment of the device according to the invention shown in Figure 1 in a side view.
  • Fig. 3 shows the rotor of the further preferred embodiment of the device according to the invention shown in Figure 1 in a side view.
  • FIG. 4 shows the rotor of the further preferred embodiment of the device according to the invention shown in FIG. 1 in a side view.
  • the apparatus (100) according to the invention shown in FIGS. 1 and 4 for dispersing, in particular, liquid to viscous substance mixtures and for comminuting granular mixtures of substances and suspensions contains one Batch container (110) 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 Wl 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> Wl, wherein the working surfaces (161, 151) of the stator (160) and rotor (150) face 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 introducing substances from an input area (143) along the processing surfaces (161, 151) of the stator (160) and rotor (150) radially outward in the direction of
  • Input area (143) is wider than the output area (144).
  • the processing surfaces (161, 151) of the stator (160) and the rotor (150) each have a predetermined Surface structure, namely a plurality of bent projections formed on.
  • 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 displaceably mounted 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 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 mixing chamber (111) provided with a rotatable mixing blade (112) for feeding further substances into the process chamber (140).
  • the mixing blade (112) and the process chamber (140) are further provided an inducer screw (113) which the in the Misehkarmmer (111) mixed substances in the direction of the process chamber (140) presses.
  • 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 can be returned at least partially into the mixing chamber, starting from the outlet opening (142) of the receiving chambers (141).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

In an apparatus (100) for dispersing in particular liquid to viscous substance mixtures and for comminuting particles and suspensions, comprising a batch container having one or more openings (120) for introducing the substances to be worked and one or more openings (130) for discharging the processed substances, and a process chamber (140) having a rotor (150) and a stator (160), wherein the rotor (150) is mounted rotatably about a rotational axis (150) for the purpose of working substances introduced into the process chamber (140), an effective process is achieved in that the stator (160) has a working surface (161), which is disposed at an incline of an angle W1 with respect to the rotational axis (155) of the rotor (150), and the rotor (150) has a working surface (151), which is disposed at an incline of an angle W2 > W1 with respect to the rotational axis (155) of the rotor (150) such that the working surfaces (161, 151) of the stator (160) and rotor (150) are disposed at an acute angle relative to each other and a process chamber (140), which has a hollow conical cross-section and in which the introduced substances are dispersed, comminuted and homogenized, is formed between the rotor (150) and stator (160).

Description

ZERKLEINERUNGS- UND DISPERGIERVORRICHTUNG SHREDDING AND DISPERSING DEVICE
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 having 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 Ul 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 known from DE 296 08 713 Ul. 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.DE 825 084 further discloses a device for sonic vibration treatment of substances in which a passage gap for the substances to be treated is provided for the purpose of uniform intensive sonication, the width of which is periodically variable with sonic vibration frequency.
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 dadurch gelöst, dass der Stator eine Bearbeitungsfläche aufweist, die gegenüber der Rotationsachse des Rotors in einem Winkel Wl geneigt angeordnet ist und der Rotor eine Bearbeitungsfläche aufweist, die gegenüber der Rotationsachse des Rotors in einem Winkel W2 > Wl 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.For a device of the type mentioned, this object is achieved in that the stator has a machining surface which is arranged inclined relative to the axis of rotation of the rotor at an angle Wl and the rotor has a working surface has, which is arranged inclined relative to the axis of rotation of the rotor at an angle W2> Wl, such that the working surfaces of stator and rotor face each other at an acute angle and between rotor and stator is formed in the cross-section hollow conical process chamber in which the initiating Substances are dispersed, crushed and homogenized.
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 Wl geneigt angeordnet ist und der Rotor eine Bearbeitungsfläche aufweist, die gegenüber der Rotationsachse des Rotors in einem Winkel W2 > Wl 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 Wl and the rotor has a machining surface which is inclined relative to the axis of rotation of the rotor at an angle W2> Wl 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 einer ersten bevorzugten Ausführungsform 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 a first preferred embodiment of the device according to the invention, provision is made for the process chamber to be oriented in such a way 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 einer anderen bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass derAccording to another preferred embodiment of the device according to the invention it is provided that the
Eingangsbereich der Prozesskammer breiter als der Ausgangsbereich ausgebildet ist.Input region of the process chamber is formed wider than the output region.
Gemäß einer wichtigen bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung ist vorgesehen, dass die Bearbeitungsfläche des Stators und/oder des Rotors eine vorgegebene Oberflächenstruktur aufweisen. Eine Oberflächenstruktur kann dabei von einer Mehrzahl gerade oder gebogen ausgebildeter Vorsprünge oder Einkerbungen gebildet sein.According to an important preferred embodiment of the device according to the invention, it is provided that the machining surface of the stator and / or of the rotor have a predetermined surface structure. A surface structure may be formed by a plurality of straight or curved projections or notches.
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. 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.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 locked 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.
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 . 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 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.
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: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 eine bevorzugte Ausführungsform der erfindungsgemäßen Vorrichtung in einer Querschnittsansicht .Fig. 1 shows a preferred embodiment of the device according to the invention in a cross-sectional view.
Fig. 2 den Rotor der in Figur 1 dargestellten bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Seitenansicht.Fig. 2 shows the rotor of the preferred embodiment of the device according to the invention shown in Figure 1 in a side view.
Fig. 3 den Rotor der in Figur 1 dargestellten weiteren bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Seitenansicht.Fig. 3 shows the rotor of the further preferred embodiment of the device according to the invention shown in Figure 1 in a side view.
Fig. 4 den Rotor der in Figur 1 dargestellten weiteren bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in einer Seitenansicht.4 shows the rotor of the further preferred embodiment of the device according to the invention shown in FIG. 1 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 (110) 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 apparatus (100) according to the invention shown in FIGS. 1 and 4 for dispersing, in particular, liquid to viscous substance mixtures and for comminuting granular mixtures of substances and suspensions contains one Batch container (110) 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 Wl geneigt angeordnet ist und der Rotor (150) weist eine Bearbeitungsfläche (151) auf, die gegenüber der Rotationsachse (155) des Rotors (150) in einem Winkel W2 > Wl 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 Wl 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> Wl, wherein the working surfaces (161, 151) of the stator (160) and rotor (150) face 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 einesThe process chamber (140) is oriented so that the introducing substances from an input area (143) along the processing surfaces (161, 151) of the stator (160) and rotor (150) radially outward in the direction of
Ausgangsbereichs (144) transportiert werden. DerOutput range (144) are transported. Of the
Eingangsbereich (143) ist dabei breiter als der Ausgangsbereich (144) ausgebildet.Input area (143) is wider than the output area (144).
Die Bearbeitungsflächen (161, 151) des Stators (160) und des Rotors (150) weisen jeweils eine vorgegebene Oberflächenstruktur, nämlich eine Mehrzahl gebogen ausgebildeter Vorsprünge auf.The processing surfaces (161, 151) of the stator (160) and the rotor (150) each have a predetermined Surface structure, namely a plurality of bent projections formed on.
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 shown in Fig. 2, 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 displaceably mounted 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 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 (110) 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 (110) and the process chamber (140) there is provided a mixing chamber (111) provided with a rotatable mixing blade (112) for feeding further substances into the process chamber (140).
Zwischen dem Mischflügel (112) und der Prozesskammer (140) ist des Weiteren eine Inducerschraube (113) vorgesehen, die die in der Misehkämmer (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 in the Misehkämmer (111) mixed substances in the direction of the process chamber (140) presses. 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 Aufnahmekaminer (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 Aufnahmekämmer (141) zumindest teilweise in die Mischkammer zurückleitbar .The processed substances can be returned at least partially into the mixing chamber, starting from the outlet opening (142) of the receiving chambers (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

Patentansprüche claims
1. Vorrichtung (100) zum Dispergieren insbesondere flüssiger bis zähflüssiger Substanzgemische sowie zum Zerkleinern von Partikeln und Suspensionen, mit einem Chargenbehälter (110) mit einer oder mehr Öffnungen (120) zum Einleiten der Substanzen sowie einer oder mehr Öffnungen (130) zum Ausleiten der Substanzen, sowie einer Prozesskammer (140) mit einem Rotor (150) und einem Stator (160) , wobei der Rotor (150) zum Zweck des Bearbeitens von in die Prozesskammer (140) eingeleiteten Substanzen gegenüber dem Stator (160) um eine Rotationsachse (155) drehbar gelagert ist, dadurch gekennzeichnet, dass der Stator (160) eine Bearbeitungsfläche (161) aufweist, die gegenüber der Rotationsachse (155) des Rotors (150) in einem Winkel Wl geneigt angeordnet ist und der Rotor (150) eine Bearbeitungsfläche (151) aufweist, die gegenüber der Rotationsachse (155) des Rotors (150) in einem Winkel W2 > Wl geneigt angeordnet ist, derart, dass sich die Bearbeitungsflächen (161, 151) von Stator (160) und Rotor (150) in einem spitzen Winkel gegenüberstehen und zwischen Rotor (150) und Stator (160) die im Querschnitt hohlkonische Prozesskammer (140) ausgebildet ist, in der die eingeleitenden Substanzen dispergiert, zerkleinert und homogenisiert werden.Anspruch [en] A device (100) for dispersing in particular liquid to viscous substance mixtures and for comminuting particles and suspensions, comprising a charge container (110) having one or more openings (120) for introducing the substances and one or more openings (130) for discharging the Substances, and a process chamber (140) having a rotor (150) and a stator (160), wherein the rotor (150) for the purpose of processing in the process chamber (140) introduced substances relative to the stator (160) about an axis of rotation ( 155) is rotatably mounted, characterized in that the stator (160) has a working surface (161) which is inclined with respect to the axis of rotation (155) of the rotor (150) at an angle Wl and the rotor (150) has a working surface (16). 151) which is inclined relative to the axis of rotation (155) of the rotor (150) at an angle W2> Wl, such that the working surfaces (161, 151) of stator (16) 160) and rotor (150) facing each other at an acute angle and between the rotor (150) and stator (160) is formed in the cross-section hollow conical process chamber (140) in which the incoming substances are dispersed, crushed and homogenized.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Prozesskammer (140) so orientiert ist, 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) der Prozesskammer (140) transportiert werden. 2. Device according to claim 1, characterized in that the process chamber (140) is oriented so that the introducing substances from an input area (143) along the processing surfaces (161, 151) of the stator (160) and rotor (150) radially to are transported outside in the direction of an exit region (144) of the process chamber (140).
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Eingangsbereich (143) der Prozesskammer (140) breiter als der Ausgangsbereich (144) der Prozesskammer3. Device according to claim 2, characterized in that the input region (143) of the process chamber (140) wider than the output region (144) of the process chamber
(140) ausgebildet ist.(140) is formed.
4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bearbeitungsfläche (161) des Stators (160) eine vorgegebene Oberflächenstruktur aufweist .4. Device according to one of the preceding claims, characterized in that the processing surface (161) of the stator (160) has a predetermined surface structure.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass auch die Bearbeitungsfläche (151) des Rotors (150) eine vorgegebene Oberflächenstruktur aufweist .5. Device according to one of the preceding claims, characterized in that also the processing surface (151) of the rotor (150) has a predetermined surface structure.
6. Vorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass eine Oberflächenstruktur einer Bearbeitungsfläche (161, 151) von einer Mehrzahl gerade ausgebildeter Vorsprünge gebildet ist.6. Device according to one of claims 4 or 5, characterized in that a surface structure of a processing surface (161, 151) is formed by a plurality of straight formed projections.
7. Vorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass eine Oberflächenstruktur einer Bearbeitungsfläche (161, 151) von einer Mehrzahl gebogen ausgebildeter Vorsprünge gebildet ist.7. Device according to one of claims 4 or 5, characterized in that a surface structure of a processing surface (161, 151) is formed by a plurality of curved projections formed.
8. Vorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass eine Oberflächenstruktur einer Bearbeitungsfläche (161, 151) von einer Mehrzahl gerade ausgebildeter Kerben gebildet ist.8. Device according to one of claims 4 or 5, characterized in that a surface structure of a processing surface (161, 151) is formed by a plurality of straight notches formed.
9. Vorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass eine Oberflächenstruktur einer Bearbeitungsfläche (161, 151) von einer Mehrzahl gebogen ausgebildeter Kerben gebildet ist.9. Device according to one of claims 4 or 5, characterized in that a surface structure of a Machining surface (161, 151) is formed by a plurality of curved notches formed.
10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stator (160) in Richtung des Rotors (150) axial reziprozierbar verschiebbar gelagert ist und mittels einer Verschiebeeinrichtung (170) innerhalb eines vorgegebenen Hubbereiches in Richtung des Rotors verschiebbar und dabei in beliebiger Position arretierbar ist, um das Volumen der Prozesskammer (140) vorzugeben.10. Device according to one of the preceding claims, characterized in that the stator (160) in the direction of the rotor (150) is mounted axially reciprocally displaceable and displaceable by means of a displacement device (170) within a predetermined stroke range in the direction of the rotor and thereby in any Locked position to specify the volume of the process chamber (140).
11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass der Stator (160) innerhalb eines Außengehäuses (101) der Prozessvorrichtung (100) verschiebbar gelagert ist und mit einem Außengewinde versehen ist, wobei die Verschiebeeinrichtung (170) einen durch eine Aussparung11. The device according to claim 10, characterized in that the stator (160) within an outer housing (101) of the process device (100) is slidably mounted and is provided with an external thread, wherein the displacement device (170) through a recess
(102) des Außengehäuses (101) geführten und an dem Außengehäuse (101) rotierbar gelagerter Dorn (103) enthält, der in das Außengewinde (162) des Stators (160) eingreift.(102) of the outer housing (101) and guided on the outer housing (101) rotatably mounted mandrel (103) which engages in the external thread (162) of the stator (160).
12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass der Dorn (103) mittels eines elektromotorischen Antriebs gesteuert rotierbar ist.12. The device according to claim 11, characterized in that the mandrel (103) is controlled by means of an electric motor drive rotatable.
13. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen dem Chargenbehälter13. Device according to one of the preceding claims, characterized in that between the batch container
(110) und der Prozesskammer (140) eine mit einem rotierbaren Mischflügel (112) versehene Mischkammer (111) zur Zuleitung weiterer Substanzen in die Prozesskammer(110) and the process chamber (140) has a mixing chamber (111) provided with a rotatable mixing blade (112) for supplying further substances into the process chamber
(140) vorgesehen ist.(140) is provided.
14. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass zwischen dem Mischflügel (112) und der Prozesskammer (140) eine Inducerschraube (113) vorgesehen ist, die die in der Misehkämmer (111) durchmischten Substanzen in Richtung der Prozesskammer (140) drückt.14. The apparatus according to claim 13, characterized in that between the mixing blade (112) and the process chamber (140) an inducer screw (113) is provided which presses the substances mixed in the mixing chamber (111) in the direction of the process chamber (140).
15. Vorrichtung nach einem der Ansprüche 13 oder 14, dadurch gekennzeichnet, dass der Mischflügel (112), die Inducerschraube (113) und der Rotor (150) auf einer gemeinsamen Welle (152) gelagert sind.15. Device according to one of claims 13 or 14, characterized in that the mixing blade (112), the Inducerschraube (113) and the rotor (150) are mounted on a common shaft (152).
16. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass stromabwärts des Ausgangsbereichs der Prozesskammer (140) eine mit einer Ausgangsöffnung (130) versehene Aufnahmekammer (141) für prozessierte Substanzen vorgesehen ist.16. Device according to one of the preceding claims, characterized in that downstream of the output region of the process chamber (140) is provided with an outlet opening (130) provided receiving chamber (141) for processed substances.
17. Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass in der Aufnahmekammer (141) eine rotierbarer Verteilerflügel (142) vorgesehen ist.17. The apparatus according to claim 16, characterized in that in the receiving chamber (141) a rotatable distributor wing (142) is provided.
18. Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, dass der Verteilerflügel (142) zumindest indirekt mit dem Rotor (150) verbunden ist.18. The apparatus according to claim 17, characterized in that the distributor wing (142) is at least indirectly connected to the rotor (150).
19. Vorrichtung nach einem der Ansprüche 16 bis 18, dadurch gekennzeichnet, dass die prozessierten Substanzen ausgehend von der Ausgangsöffnung (130) der Aufnahmekammer (141) zumindest teilweise in den Chargenbehälter (110) zurückleitbar sind.19. Device according to one of claims 16 to 18, characterized in that the processed substances, starting from the outlet opening (130) of the receiving chamber (141) at least partially in the batch container (110) are zurückleitbar.
20. Vorrichtung nach einem der Ansprüche 16 bis 18, dadurch gekennzeichnet, dass die prozessierten Substanzen ausgehend von der Ausgangsöffnung (130) der Aufnahmekammer (141) zumindest teilweise in die Misehkämmer (111) zurückleitbar sind.20. Device according to one of claims 16 to 18, characterized in that the processed substances starting from the output opening (130) of the receiving chamber (141) at least partially in the Misehkämmer (111) are zurückleitbar.
21. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Drehzahl des Rotors (150) einstellbar ist.21. Device according to one of the preceding claims, characterized in that the rotational speed of the rotor (150) is adjustable.
22. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rotor (150) in einen oberen und einen unteren Teil unterteilt ist, wobei die Bearbeitungsfläche (151) des oberen Teils des Rotors (150) in einem Auftreffbereich der zu prozessierenden Substanzen nach innen gebogen ausgebildet ist. 22. Device according to one of the preceding claims, characterized in that the rotor (150) is divided into an upper and a lower part, wherein the processing surface (151) of the upper part of the rotor (150) in an impact region of the substances to be processed after is formed bent inside.
EP09775844A 2009-03-06 2009-03-06 Comminuting and dispersing apparatus Active EP2403632B1 (en)

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