EP3572145B1 - Device and method for homogenisation of flowable material - Google Patents

Device and method for homogenisation of flowable material Download PDF

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Publication number
EP3572145B1
EP3572145B1 EP19175326.8A EP19175326A EP3572145B1 EP 3572145 B1 EP3572145 B1 EP 3572145B1 EP 19175326 A EP19175326 A EP 19175326A EP 3572145 B1 EP3572145 B1 EP 3572145B1
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Prior art keywords
drive
rotation element
housing
rotation
drive shaft
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EP19175326.8A
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German (de)
French (fr)
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EP3572145A1 (en
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Olaf Hommers
Ulf Sieckmann
Jörg SEIDEL
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Symex GmbH and Co KG
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Symex GmbH and Co KG
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Priority to PL19175326T priority Critical patent/PL3572145T3/en
Publication of EP3572145A1 publication Critical patent/EP3572145A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/40—Mixers with rotor-rotor system, e.g. with intermeshing teeth

Definitions

  • the invention relates to a device for homogenizing flowable substances, with a housing, the housing having an inlet opening through which the flowable material flows into the interior space, and an outlet opening through which the homogenized material can flow out of the housing, a first rotatable in the housing mounted rotary element, a second rotary element rotatably mounted in the housing, wherein the second rotary element can be driven independently of the first rotary element.
  • Such devices are used, for example, in the cosmetic, pharmaceutical or chemical industry in the production of creams, ointments, pastes or the like.
  • the device is e.g. B. arranged at the lowest point of a container, for example an agitator container, and homogenizes and / or disperses the flowable substance by applying shear forces to the substance using a rotary element or a rotor together with a stationary stator.
  • the device could also be placed separately next to one or between two containers.
  • the homogenized substance can either be conveyed back into the container, another container or to a filling plant.
  • the homogenization can essentially be influenced by varying the speed of the rotary element in relation to the stationary stator or by the specific design of the rotor and / or the stator. At high speeds, the shearing action and also the conveying effect of the device for homogenizing is greater than at low speeds.
  • a disadvantage of the known devices is that the shearing action and the conveying action are directly coupled to one another.
  • Another disadvantage is that if the engine speed is too high, the shear effect becomes so great that the material to be homogenized can be adversely affected or possibly even damaged.
  • the EP 1 825 907 B1 discloses a device for homogenizing flowable substances, with a rotor mounted rotatably in a housing and drivable by means of a drive device, and a drivable rotary element for homogenizing and / or conveying a flowable substance.
  • the rotary element can be driven in the same direction as or in the opposite direction to the rotor by means of a drive device.
  • the drive devices of the rotor and the rotating element can be controlled independently of one another. The possibility of varying the shear action and the pumping action can thus be controlled to a certain extent, but require further optimization in order to meet the growing requirements and, in particular, increasing container sizes / batch sizes in the cosmetic, pharmaceutical or chemical industries.
  • KR 100738643 B1 discloses a mixing device with a plurality of drive units or drive devices for driving rotatable elements which protrude into the mixing container from above or from below for mixing.
  • a homogenizing device is arranged at the bottom of the container.
  • CH 628522 discloses a device for liming juice during juice purification in sugar factories, which has a cylindrical vessel with several sub-spaces. Stirring elements that sit on a shaft are arranged in the sub-spaces. Several motors each drive a shaft that protrudes into the vessel at a distance from one another.
  • WO 91/07223 relates to a device for mixing and / or grinding pastes and a first and second rotatable element are arranged within a drum. Even US 2015 / 0328602A1 discloses an agitator having two rotor elements.
  • the object of the present invention is to avoid the disadvantages known from the prior art and, in particular, to provide a device with which the homogenization effect can be influenced more strongly and the shearing action and the pumping action can be adapted to the respective requirements.
  • the invention solves this problem by a device with the features of claim 1.
  • the invention solves the underlying object in devices for homogenizing flowable substances by a third rotary element, which is rotatably mounted in the housing and is operatively connected to a corresponding drive device, wherein the drive device is set up to drive the third rotary element independently of the first and second rotary element.
  • the first drive shaft is operatively connected to a first drive device, the second drive shaft to a second drive device and the third drive shaft to a third drive device.
  • the first drive shaft is rotatably mounted in the second drive shaft
  • the second drive shaft is configured as a hollow shaft and rotatably mounted in the third drive shaft
  • the outer drive shaft is configured as a hollow shaft and rotatably mounted in the housing.
  • the storage of the drive shafts can be designed in an expedient manner so that the inner drive shaft is supported by means of roller bearings in the middle shaft and the middle shaft in turn is supported by means of roller bearings in the outer shaft, which is supported in the housing.
  • Advantages of the invention consist essentially in the fact that the additional, separately and independently of the first and second rotary element drivable third rotary element influences the homogenization and conveyance in many ways and can be adapted to the respective production requirements.
  • the shear effect on the fabric can be adjusted in particular by setting and varying the relative speeds of the three rotatable elements.
  • the rotatable elements can be driven in the same direction or in opposite directions in order to be able to vary the shear effect continuously within large ranges.
  • the shear effect can be varied independently of the delivery rate (i.e. the delivery rate of the material).
  • the shearing action is at a maximum, with a significantly lower absolute rotational speed being necessary for the same shearing action in comparison with conventional devices for homogenization.
  • the drives can be designed for lower rotational speeds or higher shear rates can be achieved.
  • the rotary elements can be coupled to a drive in a geometrically favorable manner independently of one another by means of three separate drive shafts.
  • the drive shafts are arranged coaxially to one another and essentially vertically.
  • the drive shafts can be coupled to a drive in a simple manner with a coupling means, such as toothed belts, chains, V-belts, friction wheels, toothed wheels or the like, and the rotation elements can be aligned essentially vertically in the container.
  • the drive shafts are furthermore preferably coupled to the respective corresponding drive devices by means of toothed wheels and toothed belts.
  • At least one shaft seal for sealing the interior of the housing of the device against the environment preferably in each case a shaft seal corresponding to one of the three drive shafts, is provided.
  • At least one mechanical seal is preferably provided to seal the interior of the housing from the environment.
  • an agitator container to which a device according to the invention for homogenizing can be connected there are often negative or positive pressures which can thus be safely controlled.
  • the drive devices can be controlled in such a way that the first, second and third rotation elements each rotate in both directions of rotation.
  • the drives can be controlled in such a way that the shear effect due to the opposite directions of rotation is maximized.
  • the first, preferably outer, rotary element and / or the second rotary element are designed as a pump wheel with a plurality of pump blades. High conveying effects are thus achieved, while the rotating elements essentially generate the shear effect of the device.
  • the first rotary element and / or the second are designed in the manner of a stator or a rotor with vanes.
  • this is a device for homogenizing, which can generate a maximum shear effect.
  • the device according to the invention is particularly preferably developed in that the third rotary element is coupled to means for homogenization, in particular stirring and cutting means.
  • stirring and cutting tools can be used, which can be adapted according to the respective requirements. For example, tools can be used to pre-shred large components or for targeted premixing and feeding of the flowable material.
  • At least one return line communicating with the outlet opening of the housing is also preferably provided, through which the flowable substance can be returned to a container at various discrete positions depending on the position of a control valve.
  • the substance can also expediently be recycled for small amounts of a substance to be homogenized, for example.
  • one or more of the drive shafts of the rotary elements is drive-coupled to a motor.
  • a motor is a simple instantaneous drive for such a device.
  • the underlying object is achieved by a container, in particular an agitator container, with a couplable device according to the invention for homogenizing flowable material.
  • a container in particular an agitator container
  • a couplable device according to the invention for homogenizing flowable material With regard to the advantages achieved and preferred embodiments, reference is made to the above explanations of the device for homogenizing flowable material.
  • a container, in particular an agitator container, with such a device makes the corresponding advantages its own.
  • the object on which the invention is based is achieved by a method for homogenizing flowable substances by means of a device according to the invention for homogenizing flowable material.
  • Figure 1 shows the device 1 according to the invention for homogenizing flowable substances, which can be coupled to a container 2, also referred to as an agitator container.
  • the device 1 and the container 2 are coupled by means of a flange connection.
  • the device 1 also has a housing 9 which comprises a plurality of housing parts 9a, 9b, 9c which are mechanically connected.
  • the device 1 has an outlet opening 19 on the side, which forms an outlet and can be connected in a fluid-conducting manner to a line or another receiving means.
  • the device 1 also has an inlet opening 11, which can be connected to the container 2 in a fluid-conducting manner, and a further opening 21 which can be coupled to an addition line so that liquid, solid or pasty additives can be added.
  • the device 1 has a first drive device 15, a second drive device 17 (cf. Fig. 2 ) and a third drive unit 13 (cf. Fig. 2 ) on.
  • the device 1 comprises a first rotary element 25 rotatably mounted in the housing 9 and drivable by means of the first drive device 15, a second independently of the first rotary element 25 by means of the second drive device 17 (cf. Fig. 2 ) drivable rotary element 27 and a third rotary element 23 rotatably mounted in the housing 9, which by means of the third drive unit 13 (cf. Fig. 2 ) can be driven independently of the first and second rotary elements 25, 27.
  • the first rotation element 25 and the first drive device 15 are coupled to one another via a first drive shaft 5.
  • the second rotation element 27 is connected to the second drive device 17 (cf. Fig. 2 ) coupled via a second drive shaft 7.
  • the third Rotation element 23 is connected to the third drive device 13 (cf. Fig. 2 ) coupled via a third drive shaft 3.
  • the three drive shafts 3, 5 and 7 are arranged coaxially, the second and third drive shafts 7, 3 being designed as hollow shafts.
  • the outer drive shaft 3 is supported in the housing 9b by means of two bearings 60, 62, which are roller or slide bearings.
  • the second drive shaft 7 is mounted in the outer shaft 3 by means of two bearings 66, 68, which are roller or sliding bearings, and the third drive shaft is in turn mounted in the second shaft 7 by means of bearings 70, 72.
  • the rotation elements 25, 27 and 23 are each connected in a torsionally rigid manner to an upper end section of the corresponding drive shaft 5, 7, 3 and, according to this embodiment, by means of screws.
  • the three rotation elements 25, 27 and 23 are thus arranged at a distance from one another.
  • the bearings 60, 62, 66, 68, 70, 72 are, for example, filled with lubricant or are designed to be self-lubricating and are fixed in the predetermined positions with the aid of circlips and sleeves.
  • the first, second and third rotary elements 25, 27 and 23 are driven separately from one another, so that the rotary elements can be driven in the same direction or in opposite directions and, moreover, at different rotational speeds.
  • the rotation elements 25, 27 and 23 are axially offset from one another in the longitudinal direction of their axes of rotation.
  • the housing 9b is closed with a cover 74, which at the same time fixes the bearing 62.
  • three mechanical seals 45, 47, 43 are provided.
  • Other shaft seals such as lip seals or the like, could be used.
  • An upper sliding ring of the sliding ring seal 45 is firmly connected to the element 25, while a lower sliding ring is attached to the drive shaft 7 and rotates with it, so that flowable material cannot flow into the interior of the housing 9.
  • An upper ring of the mechanical seal 43 is attached to the inside of the element 23 and is relatively movable to a lower ring of the mechanical seal 43, which is firmly connected to the inside of the drive shaft 3 so that no flowable substance can pass the mechanical seal 43 into the interior of the housing 9 can stream.
  • an upper ring of the mechanical seal 47 is attached to the rotary element 27 and is relatively movable to a lower ring of the mechanical seal 47, which is firmly connected to the inside of the housing 9a, so that no flowable substance can pass the mechanical seal 47 and into the interior of the Housing 9 can flow.
  • the drive shafts 5, 7, 3 can be driven with the aid of toothed wheels 57, 55, 53, toothed belts 37, 35, 33, and drive devices 15, 17, 13 (cf. Fig. 2 ), which include gears and electric motors, are driven at adjustable speeds in both directions of rotation, so that the rotation elements 25, 27, 23 rotate in the same direction or in opposite directions.
  • the rotational speeds and directions of rotation of the rotation elements 25, 27 and 23 can be changed according to the application.
  • the direction of rotation By changing the direction of rotation, the flow, shear and thus the homogenization of the mixture within the container 2 is changed.
  • the first rotation element 25 is coupled to means for homogenization, in particular stirring and cutting tools.
  • the third rotation element 23 is designed in the manner of a pump wheel and comprises a base plate and wing elements.
  • the device 1 is furthermore operatively connected to the first drive device 15, the second drive device 17 and the third drive device 13, which are arranged at a distance.
  • the drive devices 15, 17, 13 can include gears and electric motors.
  • the first rotation element 25, the second rotation element 27 and the third rotation element 23 are arranged in the housing 9 (cf. Fig. 1 ).
  • the first rotation element 25 (cf. Fig. 2 ) is connected to the first drive device 15 and the second rotary element 27 (cf. Fig. 1 ) is connected to the second drive device 17 and the third rotary element 23 (cf. Fig. 1 ) is mechanically, in particular rotationally, coupled to the third drive device 13.
  • the size of the respective drive device can be designed according to the required drive power independently of the respective other drive devices.
  • the first drive device 15, which the first rotation element 25 (cf. Fig. 1 ) drives is in the embodiment according to Fig. 2 smaller than the other drive devices 17, 13.
  • the drive devices 15, 17, 13 can be arranged vertically spaced from one another.
  • the drive devices 15, 17 and 13 are arranged at a distance from the housing 9 of the device 1.
  • the drive devices 15, 17 and 13 are in particular arranged offset from one another by 90 ° around the center point of the device. It goes without saying that other arrangements of the drives are also possible. This results in a compact design and a favorable alignment of the toothed belts 37, 35, 33 (cf. Fig. 1 and 4th ), to each other.
  • Fig. 4 shows a section of an exemplary embodiment in which the torque is transmitted from the drive devices 13, 17 to the drive shafts 3, 7 solely by means of toothed belts 33, 37.

Description

Die Erfindung betrifft eine Vorrichtung zum Homogenisieren fließfähiger Stoffe, mit einem Gehäuse, wobei das Gehäuse eine Einlassöffnung, durch die fließfähiges Material in den Innenraum einströmen, und eine Ausgangsöffnung, durch die das homogenisierte Material aus dem Gehäuse ausströmen kann, aufweist, einem ersten drehbar in dem Gehäuse gelagerten Rotationselement, einem zweiten drehbar in dem Gehäuse gelagerten Rotationselement, wobei das zweite Rotationselement unabhängig von dem ersten Rotationselement antreibbar ist.The invention relates to a device for homogenizing flowable substances, with a housing, the housing having an inlet opening through which the flowable material flows into the interior space, and an outlet opening through which the homogenized material can flow out of the housing, a first rotatable in the housing mounted rotary element, a second rotary element rotatably mounted in the housing, wherein the second rotary element can be driven independently of the first rotary element.

Derartige Vorrichtungen werden beispielsweise in der kosmetischen, pharmazeutischen oder chemischen Industrie bei der Herstellung von Cremes, Salben, Pasten oder dergleichen eingesetzt. Die Vorrichtung ist z. B. am tiefsten Punkt eines Behälters, beispielsweise eines Rührwerksbehälters angeordnet und homogenisiert und/oder dispergiert den fließfähigen Stoff, indem ein Rotationselement bzw. ein Rotor zusammen mit einem ortsfesten Stator Scherkräfte auf den Stoff aufbringt. Die Vorrichtung könnte auch separat neben einem oder zwischen zwei Behältern platziert sein. Der homogenisierte Stoff kann entweder zurück in den Behälter, einen weiteren Behälter oder zu einer Abfüllanlage gefördert werden.Such devices are used, for example, in the cosmetic, pharmaceutical or chemical industry in the production of creams, ointments, pastes or the like. The device is e.g. B. arranged at the lowest point of a container, for example an agitator container, and homogenizes and / or disperses the flowable substance by applying shear forces to the substance using a rotary element or a rotor together with a stationary stator. The device could also be placed separately next to one or between two containers. The homogenized substance can either be conveyed back into the container, another container or to a filling plant.

Die Homogenisierung lässt sich bei bekannten Vorrichtungen im Wesentlichen durch Variation der Drehzahl des Rotationselementes gegenüber dem ortsfest gelagerten Stator oder durch die konkrete Gestaltung des Rotors und/oder des Stators beeinflussen. Bei hohen Drehzahlen ist die Scherwirkung und auch die Förderwirkung der Vorrichtung zum Homogenisieren größer als bei niedrigen Drehzahlen. Ein Nachteil der bekannten Vorrichtungen besteht darin, dass die Scherwirkung und die Förderwirkung unmittelbar miteinander gekoppelt sind. Darüber hinaus ist es für die Erreichung hoher Scherwirkungen und Drehzahlen des Rotors notwendig, die Antriebseinrichtungen und Antriebsmotoren entsprechend aufwendig auszulegen.In known devices, the homogenization can essentially be influenced by varying the speed of the rotary element in relation to the stationary stator or by the specific design of the rotor and / or the stator. At high speeds, the shearing action and also the conveying effect of the device for homogenizing is greater than at low speeds. A disadvantage of the known devices is that the shearing action and the conveying action are directly coupled to one another. In addition, in order to achieve high shear effects and rotational speeds of the rotor, it is necessary to design the drive devices and drive motors in a correspondingly complex manner.

Ein weiterer Nachteil besteht darin, dass bei zu hoher Drehzahl des Motors die Scherwirkung so groß wird, dass der zu homogenisierende Stoff nachteilig beeinflusst oder eventuell sogar geschädigt werden kann.Another disadvantage is that if the engine speed is too high, the shear effect becomes so great that the material to be homogenized can be adversely affected or possibly even damaged.

Um dem Erfordernis der hohen Förderwirkung gerecht werden zu können und gleichzeitig die Scherwirkung bei hohen Drehzahlen zu reduzieren, wurden Vorrichtungen zum Homogenisieren, sogenannte Homogenisatoren, entwickelt, die eine axiale Verschiebung des Rotors relativ zum Stator ermöglichen, um die freien Strömungsquerschnitte (oder Spalte) zwischen dem Rotor und dem Stator zu erhöhen (vgl. DE 296 08 712 U oder DE 24 13 452 ). Der konstruktive Aufwand für eine derartige axiale Verschiebbarkeit ist sehr hoch. Die EP 1 825 907 B1 offenbart eine Vorrichtung zum Homogenisieren fließfähiger Stoffe, mit einem in einem Gehäuse drehbar gelagerten und mittels einer Antriebseinrichtung antreibbaren Rotor, und einem antreibbaren Rotationselement zum Homogenisieren und/oder Fördern eines fließfähigen Stoffes. Das Rotationselement ist mittels einer Antriebseinrichtung gleichsinnig mit oder gegensinnig zu dem Rotor antreibbar. Die Antriebseinrichtungen von Rotor und Rotationselement sind unabhängig voneinander steuerbar. Die Variationsmöglichkeit der Scherwirkung und der Pumpwirkung sind somit in Maßen steuerbar, bedürfen aber weiterer Optimierung, um den wachsenden Anforderungen und insbesondere steigenden Behältergrößen/Chargengrößen der kosmetischen, pharmazeutischen oder chemischen Industrie gerecht zu werden.Devices for Homogenizers, so-called homogenizers, have been developed that allow an axial displacement of the rotor relative to the stator in order to increase the free flow cross-sections (or gaps) between the rotor and the stator (cf. DE 296 08 712 U or DE 24 13 452 ). The structural effort for such an axial displaceability is very high. the EP 1 825 907 B1 discloses a device for homogenizing flowable substances, with a rotor mounted rotatably in a housing and drivable by means of a drive device, and a drivable rotary element for homogenizing and / or conveying a flowable substance. The rotary element can be driven in the same direction as or in the opposite direction to the rotor by means of a drive device. The drive devices of the rotor and the rotating element can be controlled independently of one another. The possibility of varying the shear action and the pumping action can thus be controlled to a certain extent, but require further optimization in order to meet the growing requirements and, in particular, increasing container sizes / batch sizes in the cosmetic, pharmaceutical or chemical industries.

KR 100738643 B1 offenbart eine Mischvorrichtung mit mehreren Antriebseinheiten oder Antriebseinrichtungen zum Antreiben rotierbarer Elemente, die zum Mischen von oben bzw. von unten in den Mischbehälter hineinragen. Unten am Behälter ist eine Homogenisiereinrichtung angeordnet. KR 100738643 B1 discloses a mixing device with a plurality of drive units or drive devices for driving rotatable elements which protrude into the mixing container from above or from below for mixing. A homogenizing device is arranged at the bottom of the container.

CH 628522 offenbart eine Vorrichtung zum Kalken von Saft bei der Saftreinigung in Zuckerfabriken, die ein zylindrisches Gefäß mit mehreren Teilräumen aufweist. In den Teilräumen sind Rührelemente angeordnet, die auf einer Welle sitzen. Mehrere Motoren treiben jeweils eine Welle an, die beabstandet zueinander in das Gefäß hineinragen. CH 628522 discloses a device for liming juice during juice purification in sugar factories, which has a cylindrical vessel with several sub-spaces. Stirring elements that sit on a shaft are arranged in the sub-spaces. Several motors each drive a shaft that protrudes into the vessel at a distance from one another.

WO 91/07223 betrifft eine Vorrichtung zum Mischen und/oder Mahlen von Pasten und ein erstes und zweites rotierbares Element sind innerhalb einer Trommel angeordnet. Auch US 2015/0328602A1 offenbart eine zwei Rotorelemente aufweisende Rührvorrichtung. WO 91/07223 relates to a device for mixing and / or grinding pastes and a first and second rotatable element are arranged within a drum. Even US 2015 / 0328602A1 discloses an agitator having two rotor elements.

Aufgabe der vorliegenden Erfindung ist es, die aus dem Stand der Technik bekannten Nachteile zu vermeiden und insbesondere eine Vorrichtung anzugeben, mit der der Homogenisierungseffekt stärker beeinflussbar ist und die Scherwirkung und die Pumpwirkung an die jeweiligen Erfordernisse anpassbar sind.The object of the present invention is to avoid the disadvantages known from the prior art and, in particular, to provide a device with which the homogenization effect can be influenced more strongly and the shearing action and the pumping action can be adapted to the respective requirements.

Die Erfindung löst diese Aufgabe durch eine Vorrichtung mit den Merkmalen des Anspruchs 1. Insbesondere löst die Erfindung die zugrundeliegende Aufgabe bei Vorrichtungen zum Homogenisieren fließfähiger Stoffe durch ein drittes Rotationselement, welches drehbar in dem Gehäuse gelagert und mit einer korrespondierenden Antriebseinrichtung wirkverbunden ist, wobei die Antriebseinrichtung dazu eingerichtet ist, das dritte Rotationselement unabhängig von dem ersten und zweiten Rotationselement anzutreiben.The invention solves this problem by a device with the features of claim 1. In particular, the invention solves the underlying object in devices for homogenizing flowable substances by a third rotary element, which is rotatably mounted in the housing and is operatively connected to a corresponding drive device, wherein the drive device is set up to drive the third rotary element independently of the first and second rotary element.

Erfindungsgemäß ist die erste Antriebswelle mit einer ersten Antriebseinrichtung, die zweite Antriebswelle mit einer zweiten Antriebseinrichtung und die dritte Antriebswelle mit einer dritten Antriebseinrichtung wirkverbunden. Durch das Antreiben jedes der diskreten Rotationselemente unabhängig voneinander, sind die Relativgeschwindigkeiten und Drehrichtungen anwendungsspezifisch für jedes der Rotationselemente wählbar, sodass diese gleichsinnig, gegenläufig oder wahlweise einzeln antreibbar sind. Erfindungsgemäß ist die erste Antriebswelle drehbar in der zweiten Antriebswelle gelagert, die zweite Antriebswelle als Hohlwelle ausgebildet und drehbar in der dritten Antriebswelle gelagert, und die äußere Antriebswelle als Hohlwelle ausgebildet und drehbar in dem Gehäuse gelagert.According to the invention, the first drive shaft is operatively connected to a first drive device, the second drive shaft to a second drive device and the third drive shaft to a third drive device. By driving each of the discrete rotating elements independently of one another, the relative speeds and directions of rotation can be selected for each of the rotating elements in a specific application, so that they can be driven in the same direction, in opposite directions or, alternatively, individually. According to the invention, the first drive shaft is rotatably mounted in the second drive shaft, the second drive shaft is configured as a hollow shaft and rotatably mounted in the third drive shaft, and the outer drive shaft is configured as a hollow shaft and rotatably mounted in the housing.

Die Lagerung der Antriebswellen kann dabei auf zweckmäßige Weise so gestaltet werden, dass die innere Antriebswelle mittels Wälzlagern in der mittleren Welle gelagert ist und die mittlere Welle ihrerseits mittels Wälzlagern in der äußeren Welle gelagert ist, welche in dem Gehäuse gelagert ist.The storage of the drive shafts can be designed in an expedient manner so that the inner drive shaft is supported by means of roller bearings in the middle shaft and the middle shaft in turn is supported by means of roller bearings in the outer shaft, which is supported in the housing.

Vorteile der Erfindung bestehen im Wesentlichen darin, dass durch das zusätzliche, separat und unabhängig vom ersten und zweiten Rotationselement antreibbare dritte Rotationselement die Homogenisierung und Förderung auf vielfältige Weise beeinflusst und an die jeweiligen Produktionserfordernisse angepasst werden können. Insbesondere durch Einstellung und Variation der Relativgeschwindigkeiten der drei drehbaren Elemente lässt sich die Scherwirkung auf den Stoff einstellen. Die drehbaren Elemente können gleichsinnig oder gegenläufig zueinander angetrieben werden, um die Scherwirkung stufenlos innerhalb großer Bereiche variieren zu können. Darüber hinaus kann die Scherwirkung unabhängig von der Förderleistung (das heißt der Fördermenge des Stoffs) variiert werden. Bei maximalen entgegengesetzten Drehgeschwindigkeiten ist die Scherwirkung maximal, wobei für dieselbe Scherwirkung eine wesentlich geringere absolute Drehgeschwindigkeit notwendig ist im Vergleich zu herkömmlichen Vorrichtungen zur Homogenisierung. Folglich können die Antriebe für geringere Drehgeschwindigkeiten ausgelegt werden bzw. höhere Scherraten erreicht werden.Advantages of the invention consist essentially in the fact that the additional, separately and independently of the first and second rotary element drivable third rotary element influences the homogenization and conveyance in many ways and can be adapted to the respective production requirements. The shear effect on the fabric can be adjusted in particular by setting and varying the relative speeds of the three rotatable elements. The rotatable elements can be driven in the same direction or in opposite directions in order to be able to vary the shear effect continuously within large ranges. In addition, the shear effect can be varied independently of the delivery rate (i.e. the delivery rate of the material). At maximum opposing rotational speeds, the shearing action is at a maximum, with a significantly lower absolute rotational speed being necessary for the same shearing action in comparison with conventional devices for homogenization. As a result, the drives can be designed for lower rotational speeds or higher shear rates can be achieved.

Dadurch, dass das erste Rotationselement mit einer ersten Antriebswelle, das zweite Rotationselement mit einer zweiten Antriebswelle und das dritte Rotationselement mit einer dritten Antriebswelle wirkverbunden ist, können die Rotationselemente unabhängig voneinander mittels drei separater Antriebswellen geometrisch günstig mit einem Antrieb gekoppelt werden.Because the first rotary element is operatively connected to a first drive shaft, the second rotary element to a second drive shaft and the third rotary element to a third drive shaft, the rotary elements can be coupled to a drive in a geometrically favorable manner independently of one another by means of three separate drive shafts.

In einer bevorzugten Weiterbildung der Erfindung sind die Antriebswellen koaxial zueinander und im Wesentlichen vertikal angeordnet. Somit sind die Antriebswellen auf einfache Weise mit einem Kopplungsmittel, wie Zahnriemen, Ketten, Keilriemen, Reibräder, Zahnräder oder dergleichen mit einem Antrieb koppelbar, und die Rotationselemente können im Behälter im Wesentlichen vertikal ausgerichtet werden.In a preferred development of the invention, the drive shafts are arranged coaxially to one another and essentially vertically. Thus, the drive shafts can be coupled to a drive in a simple manner with a coupling means, such as toothed belts, chains, V-belts, friction wheels, toothed wheels or the like, and the rotation elements can be aligned essentially vertically in the container.

Weiter bevorzugt sind die Antriebswellen mit den jeweils korrespondierenden Antriebseinrichtungen mittels Zahnrädern und Zahnriemen gekoppelt.The drive shafts are furthermore preferably coupled to the respective corresponding drive devices by means of toothed wheels and toothed belts.

Um den Innenraum der Vorrichtung gegenüber der Umgebung zuverlässig auch gegenüber hohen Druckdifferenzen und gegebenenfalls aggressiven Medien abzudichten, wird gemäß einer Weiterbildung vorgeschlagen, dass mindestens eine Wellenabdichtung zur Abdichtung des Innenraums des Gehäuses der Vorrichtung gegenüber der Umgebung, vorzugsweise jeweils eine Wellenabdichtung korrespondierend zu jeweils einer der drei Antriebswellen, vorgesehen ist.In order to reliably seal the interior of the device against the environment, even against high pressure differences and possibly aggressive media, it is proposed according to a further development that at least one shaft seal for sealing the interior of the housing of the device against the environment, preferably in each case a shaft seal corresponding to one of the three drive shafts, is provided.

Vorzugsweise ist mindestens eine Gleitringdichtung zur Abdichtung des Innenraums des Gehäuses gegenüber der Umgebung vorgesehen. In den Innenräumen eines Rührwerkbehälters, an den eine erfindungsgemäße Vorrichtung zum Homogenisieren anschließbar ist, herrschen häufig Unter- oder Überdrücke, die so sicher beherrschbar sind.At least one mechanical seal is preferably provided to seal the interior of the housing from the environment. In the interior of an agitator container to which a device according to the invention for homogenizing can be connected, there are often negative or positive pressures which can thus be safely controlled.

In einer bevorzugten Weiterbildung der Erfindung sind die Antriebseinrichtungen derart steuerbar, dass das erste, zweite und dritte Rotationselement jeweils in beide Drehrichtungen rotieren. Somit sind die Antriebe derart steuerbar, dass die Scherwirkung durch die entgegengesetzten Drehrichtungen maximal wird.In a preferred development of the invention, the drive devices can be controlled in such a way that the first, second and third rotation elements each rotate in both directions of rotation. Thus, the drives can be controlled in such a way that the shear effect due to the opposite directions of rotation is maximized.

In einer besonders bevorzugten Weiterbildung der Erfindung sind das erste, vorzugsweise äußere Rotationselement und/oder das zweite Rotationselement als Pumprad mit mehreren Pumpschaufeln ausgebildet. Somit werden hohe Förderwirkungen erzielt, während die Rotationselemente im Wesentlichen die Scherwirkung der Vorrichtung erzeugen.In a particularly preferred development of the invention, the first, preferably outer, rotary element and / or the second rotary element are designed as a pump wheel with a plurality of pump blades. High conveying effects are thus achieved, while the rotating elements essentially generate the shear effect of the device.

Weiter bevorzugt sind das erste Rotationselement und/oder das zweite nach Art eines Stators oder eines Rotors mit Flügeln ausgebildet. Dabei handelt es sich prinzipiell um eine Vorrichtung zum Homogenisieren, welche eine maximale Scherwirkung erzeugen kann. Die erfindungsgemäße Vorrichtung wird besonders bevorzugt dadurch weitergebildet, dass das dritte Rotationselement mit Mitteln zur Homogenisierung, insbesondere Rühr- und Schneidmitteln, gekoppelt ist. Somit können individualisierte Rühr- und Schneidwerkzeuge eingesetzt werden, welche entsprechend den jeweiligen Anforderungen angepasst werden können. Beispielsweise können Werkzeuge zum Vorzerkleinern großer Bestandteile oder zum gezielten Vormischen und Zuführen des fließfähigen Materials eingesetzt werden.More preferably, the first rotary element and / or the second are designed in the manner of a stator or a rotor with vanes. In principle, this is a device for homogenizing, which can generate a maximum shear effect. The device according to the invention is particularly preferably developed in that the third rotary element is coupled to means for homogenization, in particular stirring and cutting means. This means that individualized stirring and cutting tools can be used, which can be adapted according to the respective requirements. For example, tools can be used to pre-shred large components or for targeted premixing and feeding of the flowable material.

Weiter bevorzugt ist mindestens eine mit der Ausgangsöffnung des Gehäuses kommunizierende Rückführungsleitung vorgesehen, durch die in Abhängigkeit von der Stellung eines Stellventils der fließfähige Stoff an verschiedenen diskreten Positionen in einen Behälter rückführbar ist. Auf diese Weise kann der Stoff beispielsweise auch für geringe Mengen eines zu homogenisierenden Stoffs zweckmäßig zurückgeführt werden. Weiter bevorzugt ist eine oder mehrere der Antriebswellen der Rotationselemente mit einem Motor antriebsgekoppelt. Ein Motor stellt einen einfachen verzögerungsfreien Antrieb für eine solche Vorrichtung dar.At least one return line communicating with the outlet opening of the housing is also preferably provided, through which the flowable substance can be returned to a container at various discrete positions depending on the position of a control valve. In this way, the substance can also expediently be recycled for small amounts of a substance to be homogenized, for example. More preferably, one or more of the drive shafts of the rotary elements is drive-coupled to a motor. A motor is a simple instantaneous drive for such a device.

Gemäß Anspruch 12 wird die zugrundeliegende Aufgabe durch einen Behälter, insbesondere Rührwerksbehälter, mit einer koppelbaren erfindungsgemäßen Vorrichtung zum Homogenisieren fließfähigen Materials gelöst. Hinsichtlich der erreichten Vorteile und bevorzugten Ausführungsformen wird insoweit auf die obigen Ausführungen der Vorrichtung zum Homogenisieren fließfähigen Materials verwiesen. Ein Behälter, insbesondere Rührwerksbehälter, mit einer solchen Vorrichtung macht sich die entsprechenden Vorteile zu Eigen.According to claim 12, the underlying object is achieved by a container, in particular an agitator container, with a couplable device according to the invention for homogenizing flowable material. With regard to the advantages achieved and preferred embodiments, reference is made to the above explanations of the device for homogenizing flowable material. A container, in particular an agitator container, with such a device makes the corresponding advantages its own.

Gemäß Anspruch 13 wird die der Erfindung zugrundeliegende Aufgabe durch ein Verfahren zum Homogenisieren fließfähiger Stoffe mittels einer erfindungsgemäßen Vorrichtung zum Homogenisieren fließfähigen Materials gelöst.According to claim 13, the object on which the invention is based is achieved by a method for homogenizing flowable substances by means of a device according to the invention for homogenizing flowable material.

Hinsichtlich der erreichten Vorteile und bevorzugten Ausführungsformen wird insoweit auf die obigen Ausführungen der Vorrichtung zum Homogenisieren fließfähigen Materials verwiesen. Das Verfahren zum Homogenisieren fließfähigen Materials mittels der Vorrichtung macht sich die entsprechenden Vorteile zu Eigen.With regard to the advantages achieved and preferred embodiments, reference is made to the above explanations of the device for homogenizing flowable material. The method for homogenizing flowable material by means of the device makes the corresponding advantages its own.

Die Erfindung wird im Folgenden unter Bezugnahme auf die beigefügten Figuren anhand bevorzugter Ausführungsbeispiele näher beschrieben. Hierbei zeigen:

Figur 1:
Eine Vorrichtung zum Homogenisieren einer fließfähigen Flüssigkeit in einer geschnittenen Ansicht
Figur 2:
Die Vorrichtung zum Homogenisieren einer fließfähigen Flüssigkeit
Figur 3:
Vorrichtung zum Homogenisieren einer fließfähigen Flüssigkeit in einer Draufsicht
Figur 4:
Ausschnitt der Antriebseinrichtung oder Antriebseinheit der Vorrichtung zum Homogenisieren einer fließfähigen Flüssigkeit gemäß Fig. 1-3
The invention is described in more detail below with reference to the accompanying figures on the basis of preferred exemplary embodiments. Here show:
Figure 1:
A device for homogenizing a flowable liquid in a sectional view
Figure 2:
The device for homogenizing a flowable liquid
Figure 3:
Device for homogenizing a flowable liquid in a plan view
Figure 4:
Section of the drive device or drive unit of the device for homogenizing a flowable liquid according to FIG Fig. 1-3

Figur 1 zeigt die erfindungsgemäße Vorrichtung 1 zum Homogenisieren fließfähiger Stoffe, welche mit einem Behälter 2, auch bezeichnet als Rührwerksbehälter gekoppelt werden kann. Die Vorrichtung 1 und der Behälter 2 sind mittels einer Flanschverbindung gekoppelt. Die Vorrichtung 1 weist ferner ein Gehäuse 9 auf, welches mehrere Gehäuseteile 9a, 9b, 9c umfasst, welche mechanisch verbunden sind. Figure 1 shows the device 1 according to the invention for homogenizing flowable substances, which can be coupled to a container 2, also referred to as an agitator container. The device 1 and the container 2 are coupled by means of a flange connection. The device 1 also has a housing 9 which comprises a plurality of housing parts 9a, 9b, 9c which are mechanically connected.

Die Vorrichtung 1 weist seitlich eine Auslassöffnung 19 auf, welche einen Auslass ausbildet und mit einer Leitung oder einem anderen Aufnahmemittel fluidleitend verbindbar ist. Die Vorrichtung 1 weist ferner eine Einlassöffnung 11 auf, welche fluidleitend mit dem Behälter 2 verbindbar ist und ferner eine weitere Öffnung 21 auf, welche mit einer Zugabeleitung gekoppelt werden kann, sodass flüssige, feste oder pastöse Zusatzstoffe zugegeben werden können.The device 1 has an outlet opening 19 on the side, which forms an outlet and can be connected in a fluid-conducting manner to a line or another receiving means. The device 1 also has an inlet opening 11, which can be connected to the container 2 in a fluid-conducting manner, and a further opening 21 which can be coupled to an addition line so that liquid, solid or pasty additives can be added.

Die Vorrichtung 1 weist eine erste Antriebseinrichtung 15, eine zweite Antriebseinrichtung 17 (vgl. Fig. 2) und eine dritte Antriebeinheit 13 (vgl. Fig. 2) auf.The device 1 has a first drive device 15, a second drive device 17 (cf. Fig. 2 ) and a third drive unit 13 (cf. Fig. 2 ) on.

Ferner umfasst die Vorrichtung 1 ein erstes drehbar in dem Gehäuse 9 gelagertes und mittels der ersten Antriebseinrichtung 15 antreibbares Rotationselement 25, ein zweites unabhängig von dem ersten Rotationselement 25 mittels der zweiten Antriebseinrichtung 17 (vgl. Fig. 2) antreibbares Rotationselement 27 und ein drittes in dem Gehäuse 9 drehbar gelagertes Rotationselement 23, welches mittels der dritten Antriebeinheit 13 (vgl. Fig. 2) unabhängig von dem ersten und zweiten Rotationselement 25, 27 antreibbar ist.Furthermore, the device 1 comprises a first rotary element 25 rotatably mounted in the housing 9 and drivable by means of the first drive device 15, a second independently of the first rotary element 25 by means of the second drive device 17 (cf. Fig. 2 ) drivable rotary element 27 and a third rotary element 23 rotatably mounted in the housing 9, which by means of the third drive unit 13 (cf. Fig. 2 ) can be driven independently of the first and second rotary elements 25, 27.

Das erste Rotationselement 25 und die erste Antriebseinrichtung 15 sind über eine erste Antriebswelle 5 miteinander gekoppelt. Das zweite Rotationselement 27 ist mit der zweiten Antriebseinrichtung 17 (vgl. Fig. 2) über eine zweite Antriebswelle 7 gekoppelt. Das dritte Rotationselement 23 ist mit der dritten Antriebseinrichtung 13 (vgl. Fig. 2) über eine dritte Antriebswelle 3 gekoppelt. Die drei Antriebswellen 3, 5 und 7 sind koaxial angeordnet, wobei die zweite und die dritte Antriebswelle 7, 3 als Hohlwellen ausgebildet sind.The first rotation element 25 and the first drive device 15 are coupled to one another via a first drive shaft 5. The second rotation element 27 is connected to the second drive device 17 (cf. Fig. 2 ) coupled via a second drive shaft 7. The third Rotation element 23 is connected to the third drive device 13 (cf. Fig. 2 ) coupled via a third drive shaft 3. The three drive shafts 3, 5 and 7 are arranged coaxially, the second and third drive shafts 7, 3 being designed as hollow shafts.

Die äußere Antriebswelle 3 ist mittels zweier Lager 60, 62, bei denen es sich um Wälz- oder Gleitlager handelt, in dem Gehäuse 9b gelagert. Die zweite Antriebswelle 7 ist mittels zweier Lager 66, 68, bei denen es sich um Wälz- oder Gleitlager handelt, in der äußeren Welle 3 gelagert und die dritte Antriebswelle ist wiederum mittels Lagern 70, 72 in der zweiten Welle 7 gelagert. Die Rotationselemente 25, 27 und 23 sind jeweils mit einem oberen Endabschnitt der korrespondierenden Antriebswelle 5, 7, 3 drehstarr, und gemäß dieser Ausführungsform mittels Schrauben, verbunden. Die drei Rotationselemente 25, 27 und 23 sind somit beabstandet zueinander angeordnet. Die Lager 60, 62, 66, 68, 70, 72 sind beispielsweise mit Schmiermittel gefüllt oder selbstschmierend ausgebildet und mit Hilfe von Sicherungsringen und Hülsen an den vorgegebenen Positionen festgelegt.The outer drive shaft 3 is supported in the housing 9b by means of two bearings 60, 62, which are roller or slide bearings. The second drive shaft 7 is mounted in the outer shaft 3 by means of two bearings 66, 68, which are roller or sliding bearings, and the third drive shaft is in turn mounted in the second shaft 7 by means of bearings 70, 72. The rotation elements 25, 27 and 23 are each connected in a torsionally rigid manner to an upper end section of the corresponding drive shaft 5, 7, 3 and, according to this embodiment, by means of screws. The three rotation elements 25, 27 and 23 are thus arranged at a distance from one another. The bearings 60, 62, 66, 68, 70, 72 are, for example, filled with lubricant or are designed to be self-lubricating and are fixed in the predetermined positions with the aid of circlips and sleeves.

Das erste, zweite und dritte Rotationselement 25, 27 und 23 werden separat voneinander angetrieben, sodass die Rotationselemente gleichsinnig oder gegensinnig und zudem mit unterschiedlichen Drehgeschwindigkeiten angetrieben werden können. Die Rotationselemente 25, 27 und 23 weisen in Längsrichtung ihrer Rotationsachsen einen axialen Versatz zueinander auf.The first, second and third rotary elements 25, 27 and 23 are driven separately from one another, so that the rotary elements can be driven in the same direction or in opposite directions and, moreover, at different rotational speeds. The rotation elements 25, 27 and 23 are axially offset from one another in the longitudinal direction of their axes of rotation.

Im unteren Bereich ist das Gehäuse 9b mit einem Deckel 74 verschlossen, der gleichzeitig das Lager 62 festlegt.In the lower area, the housing 9b is closed with a cover 74, which at the same time fixes the bearing 62.

Zur Abdichtung des Innenraums der Vorrichtung 1 gegenüber der Umgebung sind drei Gleitringdichtungen 45, 47, 43 vorgesehen. Alternativ könnten andere Wellenabdichtungen, etwa Lippendichtringe o. dgl. eingesetzt werden. Ein oberer Gleitring der Gleitringdichtung 45 ist fest mit dem Element 25 verbunden, während ein unterer Gleitring an der Antriebswelle7 befestigt ist und mit dieser rotiert, so dass fließfähiger Stoff nicht in den Innenraum des Gehäuses 9 strömen kann. Ein oberer Ring der Gleitringdichtung 43 ist an der Innenseite des Elements 23 befestigt und relativ bewegbar zu einem unteren Ring der Gleitringdichtung 43, der fest mit der Innenseite der Antriebswelle 3 verbunden ist, so dass kein fließfähiger Stoff die Gleitringdichtung 43 passieren in den Innenraum des Gehäuses 9 strömen kann. Dem entsprechend ist ein oberer Ring der Gleitringdichtung 47 an dem Rotationselement 27 befestigt und relativ bewegbar zu einem unteren Ring der Gleitringdichtung 47, der fest mit der Innenseite des Gehäuses 9a verbunden ist, so dass kein fließfähiger Stoff die Gleitringdichtung 47 passieren und in den Innenraum des Gehäuses 9 strömen kann.To seal the interior of the device 1 from the environment, three mechanical seals 45, 47, 43 are provided. Alternatively, other shaft seals, such as lip seals or the like, could be used. An upper sliding ring of the sliding ring seal 45 is firmly connected to the element 25, while a lower sliding ring is attached to the drive shaft 7 and rotates with it, so that flowable material cannot flow into the interior of the housing 9. An upper ring of the mechanical seal 43 is attached to the inside of the element 23 and is relatively movable to a lower ring of the mechanical seal 43, which is firmly connected to the inside of the drive shaft 3 so that no flowable substance can pass the mechanical seal 43 into the interior of the housing 9 can stream. Accordingly, an upper ring of the mechanical seal 47 is attached to the rotary element 27 and is relatively movable to a lower ring of the mechanical seal 47, which is firmly connected to the inside of the housing 9a, so that no flowable substance can pass the mechanical seal 47 and into the interior of the Housing 9 can flow.

Die Antriebswellen 5, 7, 3 können mit Hilfe von an den Endabschnitten befestigten Zahnrädern 57, 55, 53, Zahnriemen 37, 35, 33, und Antriebseinrichtungen 15, 17, 13 (vgl. Fig. 2), welche Getriebe und Elektromotoren einschließen, so mit einstellbaren Drehzahlen jeweils in beide Drehrichtungen angetrieben werden, dass die Rotationselemente 25, 27, 23 gleichsinnig oder gegensinnig rotieren.The drive shafts 5, 7, 3 can be driven with the aid of toothed wheels 57, 55, 53, toothed belts 37, 35, 33, and drive devices 15, 17, 13 (cf. Fig. 2 ), which include gears and electric motors, are driven at adjustable speeds in both directions of rotation, so that the rotation elements 25, 27, 23 rotate in the same direction or in opposite directions.

Somit können die Drehgeschwindigkeiten und Drehrichtungen der Rotationselemente 25, 27 und 23 anwendungsspezifisch geändert werden. Durch eine Veränderung der Drehrichtung wird die Strömung, Scherung und damit die Homogenisierung des Gemisches innerhalb des Behälters 2 verändert.Thus, the rotational speeds and directions of rotation of the rotation elements 25, 27 and 23 can be changed according to the application. By changing the direction of rotation, the flow, shear and thus the homogenization of the mixture within the container 2 is changed.

Das erste Rotationselement 25 ist mit Mitteln zur Homogenisierung, insbesondere Rühr- und Schneidwerkzeugen gekoppelt. Das dritte Rotationselement 23 ist nach Art eines Pumrads ausgebildet und umfasst eine Basisplatte und Flügelelemente.The first rotation element 25 is coupled to means for homogenization, in particular stirring and cutting tools. The third rotation element 23 is designed in the manner of a pump wheel and comprises a base plate and wing elements.

Wie Figur 2 zeigt, ist die Vorrichtung 1 weiterhin mit der ersten Antriebseinrichtung 15, der zweiten Antriebseinrichtung 17 und der dritten Antriebseinrichtung 13, welche beabstandet angeordnet sind, wirkverbunden. Die Antriebseinrichtungen 15, 17, 13 können Getriebe und Elektromotoren einschließen. In dem Gehäuse 9 sind das erste Rotationselement 25, das zweite Rotationselement 27 und das dritte Rotationselement 23 angeordnet (vgl. Fig. 1). Das erste Rotationselement 25 (vgl. Fig. 2) ist mit der ersten Antriebseinrichtung 15 und das zweite Rotationselement 27 (vgl. Fig. 1) ist mit der zweiten Antriebseinrichtung 17 und das dritte Rotationselement 23 (vgl. Fig. 1) ist mit der dritten Antriebseinrichtung 13 mechanisch, insbesondere drehgebend, gekoppelt.As Figure 2 shows, the device 1 is furthermore operatively connected to the first drive device 15, the second drive device 17 and the third drive device 13, which are arranged at a distance. The drive devices 15, 17, 13 can include gears and electric motors. The first rotation element 25, the second rotation element 27 and the third rotation element 23 are arranged in the housing 9 (cf. Fig. 1 ). The first rotation element 25 (cf. Fig. 2 ) is connected to the first drive device 15 and the second rotary element 27 (cf. Fig. 1 ) is connected to the second drive device 17 and the third rotary element 23 (cf. Fig. 1 ) is mechanically, in particular rotationally, coupled to the third drive device 13.

Die Größe der jeweiligen Antriebseinrichtung kann entsprechend der geforderten Antriebsleistung unabhängig von den jeweils anderen Antriebseinrichtungen ausgelegt werden. Die erste Antriebseinrichtung 15, welche das erste Rotationselement 25 (vgl. Fig. 1) antreibt ist in dem Ausführungsbeispiel gemäß dem Fig. 2 kleiner als die übrigen Antriebseinrichtungen 17, 13. Die Antriebseinrichtungen 15, 17, 13 können vertikal beabstandet zu einander angeordnet sein.The size of the respective drive device can be designed according to the required drive power independently of the respective other drive devices. The first drive device 15, which the first rotation element 25 (cf. Fig. 1 ) drives is in the embodiment according to Fig. 2 smaller than the other drive devices 17, 13. The drive devices 15, 17, 13 can be arranged vertically spaced from one another.

Wie Figur 3 zeigt, sind die Antriebseinrichtungen 15, 17 und 13 zu dem Gehäuse 9 der Vorrichtung 1 beabstandet angeordnet. Die Antriebseinrichtungen 15, 17 und 13 sind insbesondere jeweils um 90° um den Mittelpunkt der Vorrichtung herum versetzt zueinander angeordnet. Es versteht sich, dass auch andere Anordnungen der Antriebe möglich sind. Somit ergibt sich eine kompakte Bauform und eine günstige Ausrichtung der Zahnriemen 37, 35, 33 (vgl. Fig. 1 und 4), zueinander.As Figure 3 shows, the drive devices 15, 17 and 13 are arranged at a distance from the housing 9 of the device 1. The drive devices 15, 17 and 13 are in particular arranged offset from one another by 90 ° around the center point of the device. It goes without saying that other arrangements of the drives are also possible. This results in a compact design and a favorable alignment of the toothed belts 37, 35, 33 (cf. Fig. 1 and 4th ), to each other.

Fig. 4 zeigt einen Ausschnitt einer Beispielhaften Ausführungsform in welcher das Drehmoment allein mittels Zahnriemen 33, 37 von den Antriebseinrichtungen 13, 17 auf die Antriebswellen 3, 7 übertragen wird. Fig. 4 shows a section of an exemplary embodiment in which the torque is transmitted from the drive devices 13, 17 to the drive shafts 3, 7 solely by means of toothed belts 33, 37.

Claims (13)

  1. Device for homogenising flowable material, having
    - a housing (9) which has an inlet opening (11), through which flowable material can flow into the interior, and an outlet opening (19) through which the flowable material can flow out of the housing (9),
    - a first rotation element (25) which is mounted rotatably in the housing (9) and can be driven by means of a first drive device (15),
    - a second rotation element (27) which is mounted rotatably in the housing (9) and can be driven by means of a second drive device (17) independently of the first rotation element (25),
    a third rotation element (23) which is mounted rotatably in the housing (9) and can be driven by means of a third drive device (13) independently of the first and second rotation element (25, 27), the first rotation element (25) being in operational connection with a first drive shaft (5), the second rotation element (27) with a second drive shaft (7) and the third rotation element (23) with a third drive shaft (3),
    the first drive shaft (5) being mounted rotatably in the second drive shaft (7),
    the second drive shaft (7) being configured as hollow shaft, characterised in that the second drive shaft (7) is mounted rotatably in the third drive shaft (3), and
    in that the outer drive shaft (3) is configured as hollow shaft and mounted rotatably in the housing (9a).
  2. Device according to claim 1,
    characterised in that the drive devices (13, 15, 17) are controllable such that the first, second and third rotation element (25, 27, 23) is rotatable respectively in a first direction of rotation and a second direction of rotation which is counter to the first direction of rotation.
  3. Device (1) according to claim 1 or 2,
    characterised in that the first rotation element (25) can be driven by the first drive device (15) in the same direction as or in the opposite direction to the second rotation element (27) or optionally either the first rotation element (25) or the second rotation element (27) is driven by the first drive device (15) or the second drive device (27) whilst the respectively other component is stationary.
  4. Device (1) according to one of the preceding claims,
    characterised in that the drive shafts (3, 5, 7) are disposed coaxially to each other, and in operation substantially vertically.
  5. Device (1) according to one of the preceding claims,
    characterised in that the first drive shaft (5) is in operational connection with the first drive unit (15), the second drive shaft (7) with the second drive unit (17) and the third drive shaft (3) with the third drive unit (13), preferably by means of toothed wheels (53, 55, 57) and toothed belts (33, 35, 37).
  6. Device (1) according to one of the preceding claims,
    characterised in that at least one shaft seal is provided for sealing the interior of the housing (9) of the device (1) relative to the surroundings, preferably respectively a shaft seal (43, 45, 47) corresponding to respectively one of the three drive shafts (3, 5, 7), preferably one shaft seal or all shaft seals (3, 5, 7) being configured as double-acting axial face seals.
  7. Device (1) according to one of the preceding claims,
    characterised in that the first rotation element (25) and/or the second and/or the third rotation element (27, 23) are configured as pump wheel with a plurality of pump blades.
  8. Device (1) according to one of the preceding claims,
    characterised in that the first rotation element (25) and/or the second rotation element (27) and/or the third rotation element (23) are configured in the manner of a stator or of a rotor with blades.
  9. Device (1) according to one of the preceding claims,
    characterised in that the first rotation element (25) has a coupling means (26) which is fitted for the purpose of coupling the first rotation element (25) to means for homogenising, in particular agitation- and cutting means.
  10. Device (1) according to one of the preceding claims,
    characterised in that at least one return line (19), which communicates with the outlet opening of the housing (9), is provided, through which the flowable material, as a function of the setting of a control valve, can be returned to different discrete positions in a container (2).
  11. Device (1) according to one of the preceding claims,
    characterised in that one or more of the drive shafts (3, 5, 7) of the rotation elements (23, 25, 27) can be driven coupled to a motor.
  12. Container (2), in particular agitator container, having a couplable device for homogenising flowable material according to at least one of claims 1 to 11.
  13. Method for homogenising flowable materials by means of a device (2) for homogenising flowable material according to at least one of claims 1 - 11, having
    - a housing (9) which has an inlet opening (11), through which flowable material can flow into the interior, and an outlet opening (19) through which the flowable material can flow out of the housing (9),
    - a first rotation element (25) which is mounted rotatably in the housing (9) and can be driven by means of a first drive device (15),
    - a second rotation element (27) which is mounted rotatably in the housing (9) and can be driven by means of a second drive device (17) independently of the first rotation element (25),
    a third rotation element (23) which is mounted rotatably in the housing (9) and can be driven by means of a third drive device (13) independently of the first and second rotation element (25, 27), in order to be able to vary continuously the shear effect on the material,
    characterised in that the drive units (13, 15, 17) are controllable such that the first, second and third rotation element (25, 27, 23) is rotatable respectively in a first direction of rotation and a second direction of rotation which is counter to the first direction of rotation.
EP19175326.8A 2018-05-18 2019-05-20 Device and method for homogenisation of flowable material Active EP3572145B1 (en)

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DE202018102804.9U DE202018102804U1 (en) 2018-05-18 2018-05-18 Device for homogenizing flowable substances

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EP3572145B1 true EP3572145B1 (en) 2021-08-25

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DE (1) DE202018102804U1 (en)
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Citations (1)

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Publication number Priority date Publication date Assignee Title
KR100738643B1 (en) * 2006-08-08 2007-07-11 주식회사 엘지생활건강 Mixing apparatus

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Publication number Priority date Publication date Assignee Title
CH353724A (en) * 1959-04-10 1961-04-30 Alfred Brogli & Co Machine for the production of mixtures that contain at least one liquid phase
FR2218350B1 (en) * 1973-02-16 1976-05-14 Rhone Progil
DE2318949C2 (en) * 1973-04-14 1975-06-05 Hoechst Ag, 6000 Frankfurt Combined mixing and homogenizing machine
CH628522A5 (en) * 1981-06-18 1982-03-15 Braunschweigische Masch Bau Apparatus for liming juice in the juice purification in sugar factories
FI895593A (en) * 1989-11-22 1991-05-23 Flowcon Oy ANORDIN I SYNNERHET FOER BEHANDLING AV KRAEMER OCH PASTOR.
DE29608712U1 (en) 1996-05-14 1996-09-05 Wittek Axel Homogenizer
JPH10309452A (en) * 1997-03-11 1998-11-24 Shinko Inbesuto:Kk Powder and grain precision processing device
DE20002920U1 (en) 2000-02-18 2000-04-20 Schroeder & Boos Misch Und Anl Homogenizer
DE102009047777A1 (en) * 2009-09-30 2011-04-07 Azo Holding Gmbh Homogenizer and homogenizer with such a homogenizer
DE202009013755U1 (en) * 2009-10-09 2010-05-12 Kniele, Erwin, Ing.(grad.) Stirrer for the production of UHPC (ultra-high-strength concrete)
US9925503B2 (en) * 2012-12-25 2018-03-27 M. Technique Co., Ltd. Stirring-processing apparatus and processing method

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Publication number Priority date Publication date Assignee Title
KR100738643B1 (en) * 2006-08-08 2007-07-11 주식회사 엘지생활건강 Mixing apparatus

Non-Patent Citations (1)

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Title
DATABASE WPI Section Ch Week 200836, Derwent World Patents Index; Class J02, AN 2008-F46917 *

Also Published As

Publication number Publication date
PL3572145T3 (en) 2021-12-13
EP3572145A1 (en) 2019-11-27
ES2899455T3 (en) 2022-03-11
DE202018102804U1 (en) 2019-08-22

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