EP0290033A1 - Homogenising machine for the production of fluid products - Google Patents

Homogenising machine for the production of fluid products Download PDF

Info

Publication number
EP0290033A1
EP0290033A1 EP88107285A EP88107285A EP0290033A1 EP 0290033 A1 EP0290033 A1 EP 0290033A1 EP 88107285 A EP88107285 A EP 88107285A EP 88107285 A EP88107285 A EP 88107285A EP 0290033 A1 EP0290033 A1 EP 0290033A1
Authority
EP
European Patent Office
Prior art keywords
rotation
rotor
stator
homogenizer
rotor blades
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
EP88107285A
Other languages
German (de)
French (fr)
Other versions
EP0290033B1 (en
Inventor
Alwin Berents
Erwin Seefried
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.)
A Berents & Co KG GmbH
Original Assignee
A Berents & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6327089&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0290033(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by A Berents & Co KG GmbH filed Critical A Berents & Co KG GmbH
Priority to AT88107285T priority Critical patent/ATE80807T1/en
Publication of EP0290033A1 publication Critical patent/EP0290033A1/en
Application granted granted Critical
Publication of EP0290033B1 publication Critical patent/EP0290033B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
    • B01F27/811—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump
    • B01F27/8111—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump the stirrers co-operating with stationary guiding elements, e.g. surrounding stators or intermeshing stators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/752—Discharge mechanisms with arrangements for converting the mechanism from mixing to discharging, e.g. by either guiding a mixture back into a receptacle or discharging it

Definitions

  • the invention relates to a homogenizer for the production of a flowable product such as an emulsion or the like with a stator which is driven by a motor and has rotor blades, which surrounds the rotor and through which the material flows from the inside to the outside.
  • Homogenizers of this type work to produce an intensive homogenization with strong turbulence and thus unfavorable flow conditions, so that relatively high drive energies are required for processing highly viscous products. Because of these turbulences, such homogenizers produce only a very slight pumping action, so that additional pumps must be used to circulate the flowable product or additional blades or the like are attached to the rotor of the homogenizer in order to improve the pumping action (DE-OS 34 17 242). However, such solutions or special constructions mean a relatively high outlay, a complication of the homogenizer and a possibly increased susceptibility to failure.
  • the present invention is based on the object of proposing a homogenizer with which it is possible to easily switch to a higher pumping action without this requiring more effort.
  • a homogenizer of the type mentioned at the outset which is characterized in that the rotor can be driven both in one and in the other direction of rotation and in that the conveying surfaces of the rotor blades are shaped in relation to the flow openings of the stator in such a way that one direction of rotation the flow of the flowable product occurs approximately at right angles to the walls of the flow openings and an optimal homogenization effect is achieved, but in the other direction of rotation is directed in the direction of the flow openings and achieves an optimal pumping effect.
  • This solution has the significant advantage that it is possible to switch the homogenizer to pump operation in a very simple manner, namely when driven by an electric motor in an electrical manner, without having to operate valves or the like. Since homogenizers are already designed for these high outputs due to the high drive power required for homogenization, very high pump outputs can be achieved after switching the direction of rotation.
  • An advantageous embodiment is characterized in that the rotor blades are provided with first conveying surfaces which are effective in one direction of rotation and are designed for homogenization and with second conveying surfaces which are effective in the other direction of rotation and are designed for optimal pumping.
  • the homogenizer is preferably designed in such a way that the first conveying surfaces of the rotor blades run approximately radially and that the second conveying surfaces have a spiral course with a continuously decreasing distance from the stator when rotating in the other direction of rotation.
  • the first and second conveying surfaces of the rotor blades are preferably shaped such that their directional components are approximately perpendicular to one another in the two directions of rotation. Such an extreme shape has the effect that during the homogenization operation there is practically only turbulence and homogenization without any appreciable pumping action, while the optimal flow conditions are present during the pumping operation, so that high pumping capacities can be achieved with relatively low energy.
  • the stator expediently has a plurality of guide blades distributed around the circumference, the flow openings of which run approximately parallel to the directional components in pumping operation in the other direction of rotation.
  • the flow resistances are minimized by this design, while in the homogenizing operation the directional components strike the walls at the flow openings approximately at right angles, which leads to strong turbulence and effective homogenization.
  • Another embodiment is characterized in that the rotor has a plurality of radially inclined rotor blades and the stator has a plurality of radially inclined guide vanes, that the inclination of the rotor blades is opposite to the inclination of the stator blades, preferably two sets of each Rotor blades and two sets of vanes are provided.
  • Such a homogenizer which can be switched over to pumping operation can expediently be used for pumping off the flowable product after homogenization has been completed by reversing the direction of rotation of the rotor and switching over to a drain.
  • Such an insert is particularly simple to set up in terms of system and has the advantage over the use of an additional pump that the device that is not required in each case does not have to be shut down and possibly cleaned before being put back into operation.
  • the homogenizer according to the invention can, however, also be used particularly simply for circulating the flowable product or for adding an additional component to the product while reversing the direction of rotation of the rotor.
  • an additional component is added, a homogenization operation is usually not necessary, so that the high pumping power of the switched homogenizer leads to a high circulation and thus mixing speed.
  • a stator 2 and a rotor 1 are accommodated in a housing 3, the rotor being driven by a drive shaft 4.
  • the homogenizer has an inlet 5 and an outlet 6.
  • the stator 2 has a plurality of guide vanes 21 distributed around the circumference, which form flow openings 22 between them.
  • the rotor 1 seated on the drive shaft 4 has four in the present exemplary embodiment Rotor blades 11, which have differently shaped first conveying surfaces 12 and second conveying surfaces 13 depending on the direction of rotation. While the first conveying surfaces 12 run approximately radially, the second conveying surfaces 13 are spiral-shaped and, when the rotor 1 rotates counterclockwise (as seen in FIG. 2), they are at a continuously decreasing distance from the stator 2.
  • the directional components 14 and 15 are approximately perpendicular to one another in the homogenizing mode or in the pumping mode, which means that in the homogenizing mode the flow of the flowable product is practically perpendicular to the walls 23 of the guide vanes 21 hit, so that practically no pumping effect is generated.
  • the homogenizer is to be given a slight pumping action, then the first conveying surface 12 or the walls 23 of the stator 2 are designed to be slightly different from a perpendicular relationship to one another in order to achieve a larger outwardly directed component. It is also possible to provide a deviation from the optimal pumping action in the operating mode according to FIG. 4 if a slight swirl is desirable.
  • Fig. 5 it is shown how with the homogenizer according to the invention, consisting of the rotor 1, the stator 2, the drive shaft 4 and a drive motor 7, a simple switchover from the homogenizing operation to pumping or circulation can take place. Only a three-way valve 8 is required to control these processes, but no additional pumps or shut-off valves. If the outlet 6 of the homogenizer is connected to a return 9 to a mixing container via the three-way valve 8, the homogenization operation takes place in one direction of rotation, the flowable product leaving the outlet 6 being reintroduced into the mixing container 10 via the return 9.
  • the three-way valve 8 is switched over and the homogenizer is operated in the reverse direction of rotation of the motor 7 (pump operation). In this case, the flowable product flows from the outlet 6 via the three-way valve 8 to the outlet 20.
  • the second embodiment of the homogenizer according to the invention shown in FIGS. 6 and 7 has a differently designed rotor 1 and a differently designed stator 2.
  • the homogenizer is designed in particular in two stages in order to further improve the homogenization effect; however, it is also possible to construct a single-stage homogenizer in the manner of the second embodiment according to the principle according to the invention.
  • the rotor 1, which is driven via a drive shaft 4, contains inner rotor blades 11a and outer rotor blades 11b.
  • the stator 2 has inner guide blades 21a and outer guide blades 21b, rotor blades and guide blades being arranged alternately one behind the other.
  • the directional arrows 17 of the rotor 1 indicated in FIG. 7 relate to the pumping direction of the homogenizer, and the flowable product is drawn in in the direction of the arrows 18 and pumped out in the direction 6 of the arrows 6 into the outlet 6.
  • the flow openings 22a between the rotor blades 11a and 11b are inclined with respect to the radial direction opposite to the direction of rotation 17 (pumping direction), while the flow openings 22b between the guide blades 21a and 21b are inclined with respect to the radial direction in the direction of rotation 17. This means that the inclination of the rotor blades 11a and 11b is opposite to the inclination of the stator blades 21a and 21b.
  • Both embodiments have in common that the homogenizer is designed in such a way that in one direction of rotation there are optimal conditions for effective homogenization, while in the opposite direction of rotation optimal flow conditions are set for an optimal pumping action.

Landscapes

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

Abstract

Examples of the fluid products concerned are emulsions, ointments, creams, mayonnaises or the like. The homogenising machine is designed in the form of a centrifugal homogeniser, the rotor blades (11) being designed in one direction of rotation for optimum homogenising operation and in the opposite direction for optimum pumping operation. Consequently, by simply switching over the direction of rotation of the rotor (1), the homogenising machine can be operated as an effective pump. <IMAGE>

Description

Die Erfindung betrifft einen Homogenisator für die Her­stellung eines fließfähigen Produktes wie Emulsion oder dergleichen mit einem von einem Motor angetriebenen und Rotorschaufeln aufweisenden Stator, der den Rotor um­gibt und durch den das Gut von innen nach außen strömt.The invention relates to a homogenizer for the production of a flowable product such as an emulsion or the like with a stator which is driven by a motor and has rotor blades, which surrounds the rotor and through which the material flows from the inside to the outside.

Homogenisatoren solcher Bauart arbeiten zur Erzeugung einer intensiven Homogenisierung mit starken Verwirbelungen und damit ungünstigen Strömungsverhältnissen, so daß zur Ver­arbeitung von hochviskosen Produkten verhältnismäßig hohe Antriebsenergien erforderlichen sind. Solche Homogenisatoren erzeugen wegen dieser Verwirbelungen nur eine sehr geringe Pumpwirkung, so daß zur Umwälzung des fließfähigen Produktes entweder Zusatzpumpen verwendet werden müssen oder am Rotor des Homogenisators Zusatzflügel oder dergleichen angebracht werden, um die Pumpwirkung zu verbessern (DE-OS 34 17 242). Solche Lösungen oder Sonderkonstruktionen bedeuten jedoch einen verhältnismäsig hohen Aufwand, eine Komplizierung des Homogenisators sowie eine eventuell erhöhte Störanfällig­keit.Homogenizers of this type work to produce an intensive homogenization with strong turbulence and thus unfavorable flow conditions, so that relatively high drive energies are required for processing highly viscous products. Because of these turbulences, such homogenizers produce only a very slight pumping action, so that additional pumps must be used to circulate the flowable product or additional blades or the like are attached to the rotor of the homogenizer in order to improve the pumping action (DE-OS 34 17 242). However, such solutions or special constructions mean a relatively high outlay, a complication of the homogenizer and a possibly increased susceptibility to failure.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Homogenisator vorzuschlagen, mit dem auf einfache Weise auf höhere Pumpwirkung umgestellt werden kann, ohne daß dies einen höheren Aufwand bedeutet.The present invention is based on the object of proposing a homogenizer with which it is possible to easily switch to a higher pumping action without this requiring more effort.

Diese Aufgabe wird erfindungsgemäß durch einen Homogenisator der eingangs genannten Art gelöst, der dadurch gekennzeichnet ist daß der Rotor sowohl in der einen als auch in der anderen Drehrichtung antreibbar ist und daß die Förderflächen der Rotorschaufeln gegenüber den Durchflußöffnungen des Stators derart geformt sind, daß in der einen Drehrichtung der Strom des fließfähigen Produktes etwa rechtwinklig auf die Wände der Durchflußöffnungen auftritt und eine optimale Homoge­nisierungswirkung erzielt wird, in der anderen Drehrichtung jedoch in Richtung der Durchflußöffnungen gerichtet ist und eine optimale Pumpwirkung erzielt.This object is achieved according to the invention by a homogenizer of the type mentioned at the outset, which is characterized in that the rotor can be driven both in one and in the other direction of rotation and in that the conveying surfaces of the rotor blades are shaped in relation to the flow openings of the stator in such a way that one direction of rotation the flow of the flowable product occurs approximately at right angles to the walls of the flow openings and an optimal homogenization effect is achieved, but in the other direction of rotation is directed in the direction of the flow openings and achieves an optimal pumping effect.

Diese Lösung hat den wesentlichen Vorteil, daß das Umschalten des Homogenisators auf Pumpbetrieb auf sehr einfache, nämlich bei Antrieb durch einen Elektromotor auf elektrische Weise möglich ist, ohne daß hierzu Ventile oder dergleichen betätigt werden müssen. Da Homogenisatoren wegen der zur Homogenisierung notwendigen hohen Antriebsleistung für diese hohen Leistungen bereits ausgelegt sind, können nach Umschalten der Drehrichtung sehr hohe Pumpleistungen erzielt werden.This solution has the significant advantage that it is possible to switch the homogenizer to pump operation in a very simple manner, namely when driven by an electric motor in an electrical manner, without having to operate valves or the like. Since homogenizers are already designed for these high outputs due to the high drive power required for homogenization, very high pump outputs can be achieved after switching the direction of rotation.

Eine vorteilhafte Ausführungsform ist dadurch gekennzeichnet, daß die Rotorschaufeln mit in der einen Drehrichtung wirksamen, für das Homogenisieren ausgebildeten, ersten Förderflächen und mit in der anderen Drehrichtung wirksamen, für ein optimales Pumpen ausgebildeten, zweiten Förderflächen versehen ist.An advantageous embodiment is characterized in that the rotor blades are provided with first conveying surfaces which are effective in one direction of rotation and are designed for homogenization and with second conveying surfaces which are effective in the other direction of rotation and are designed for optimal pumping.

Der Homogenisator ist vorzugsweise derart ausgebildet, daß die ersten Förderflächen der Rotorschaufeln etwa radial ver­laufen und daß die zweiten Förderflächen einen spiralförmigen Verlauf mit sich bei Drehung in der anderen Drehrichtung gegen­über dem Stator stetig verminderndem Abstand aufweisen. Die ersten und zweiten Förderflächen der Rotorschaufeln sind vor­zugsweise derart geformt, daß ihre Richtungskomponenten in den beiden Drehrichtungen etwa senkrecht zueinander verlaufen. Eine solche extreme Form hat die Wirkung, daß während des Homogenisierungsbetriebes praktisch nur eine Verwirbelung und Homogenisierung ohne nennenswerte Pumpwirkung stattfindet, während beim Pumpbetrieb optimale Strömungsverhältnisse vor­liegen, so daß mit verhältnismäßig geringer Energie hohe Pump­leistungen zu erzielen sind.The homogenizer is preferably designed in such a way that the first conveying surfaces of the rotor blades run approximately radially and that the second conveying surfaces have a spiral course with a continuously decreasing distance from the stator when rotating in the other direction of rotation. The first and second conveying surfaces of the rotor blades are preferably shaped such that their directional components are approximately perpendicular to one another in the two directions of rotation. Such an extreme shape has the effect that during the homogenization operation there is practically only turbulence and homogenization without any appreciable pumping action, while the optimal flow conditions are present during the pumping operation, so that high pumping capacities can be achieved with relatively low energy.

In Anpassung an die Ausbildung der Förderflächen der Rotorschaufeln weist der Stator zweckmäßigerweise eine Mehrzahl von am Umfang verteilten Leitschaufeln auf, deren Durchflußöffnungen etwa parallel zu der Richtungskomponenten bei Pumpbetrieb in der anderen Drehrichtung verlaufen. Durch diese Ausbildung werden die Strömungswiderstände mini­miert, während bei Homogenisierbetrieb die Richtungskom­ponenten etwa rechtwinklig auf die Wände an den Durchfluß­öffnungen auftreffen, was zu starken Verwirbelungen und zu einer wirksamen Homogenisierung führt.In adaptation to the design of the conveying surfaces of the rotor blades, the stator expediently has a plurality of guide blades distributed around the circumference, the flow openings of which run approximately parallel to the directional components in pumping operation in the other direction of rotation. The flow resistances are minimized by this design, while in the homogenizing operation the directional components strike the walls at the flow openings approximately at right angles, which leads to strong turbulence and effective homogenization.

Eine andere Ausführungsform ist dadurch gekennzeichnet, daß der Rotor eine Vielzahl von gegenüber der Radialen geneigten Rotorschaufeln und der Stator eine Vielzahl von gegenüber der Radialen geneigten Leitschaufeln aufweist, daß die Neigung der Rotorschaufeln gegenüber der Neigung der Statorschaufeln ent­gegengesetzt ist, wobei vorzugsweise jeweils zwei Sätze von Rotorschaufeln und zwei Sätze von Leitschaufeln vorgesehen sind.Another embodiment is characterized in that the rotor has a plurality of radially inclined rotor blades and the stator has a plurality of radially inclined guide vanes, that the inclination of the rotor blades is opposite to the inclination of the stator blades, preferably two sets of each Rotor blades and two sets of vanes are provided.

Ein solcher auf Pumpbetrieb umschaltbarer Homogenisator kann zweckmäßigerweise zum Abpumpen des fließfähigen Produktes nach abgeschlossener Homogenisierung unter Umkehr der Drehrichtung des Rotors und Umschaltung auf einen Abfluß verwendet werden. Ein solcher Einsatz ist anlagenmäßig besonders einfach aufzu­bauen und hat gegenüber der Verwendung einer zusätzlichen Pumpe den Vorteil, daß nicht die jeweils nicht benötigte Vor­richtung stillgelegt und eventuell vor Wiederinbetriebnahme gereinigt werden muß.Such a homogenizer which can be switched over to pumping operation can expediently be used for pumping off the flowable product after homogenization has been completed by reversing the direction of rotation of the rotor and switching over to a drain. Such an insert is particularly simple to set up in terms of system and has the advantage over the use of an additional pump that the device that is not required in each case does not have to be shut down and possibly cleaned before being put back into operation.

Der erfindungsgemäße Homogenisator läßt sich aber auch besonders einfach zum Umwälzen des fließfähigen Produktes oder zum Bei­mischen einer zusätzlichen Komponente zum Produkte unter Um­kehr der Drehrichtung des Rotors einsetzen. Beim Beimischen einer solchen zusätzlichen Komponente ist ein Homogenisierbe­trieb meist nicht erforderlich, so daß die hohe Pumpleistung des umgeschalteten Homogenisators zu einer hohen Umwälz- und damit Mischgeschwindigkeit führt.The homogenizer according to the invention can, however, also be used particularly simply for circulating the flowable product or for adding an additional component to the product while reversing the direction of rotation of the rotor. When such an additional component is added, a homogenization operation is usually not necessary, so that the high pumping power of the switched homogenizer leads to a high circulation and thus mixing speed.

Die Erfindung wird nachfolgend anhand zweier Ausführungsbei­spiele unter Bezug auf die beigefügten Zeichnungen näher erläutert.The invention will be explained in more detail below using two exemplary embodiments with reference to the accompanying drawings explained.

Es zeigen:

  • Fig. 1 einen Längsschnitt durch einen Kreiselhomogenisator gemäß der vorliegenden Erfindung;
  • Fig. 2 einen Querschnitt entsprechend der Linie II-II der Fig. 1;
  • Fig. 3 einen Ausschnitt aus der Darstellung nach der Fig. 2 bei Betrieb des Homogenisators in der einen Dreh­richtung (Homogenisierbetrieb);
  • Fig. 4 einen Ausschnitt aus der Darstellung nach der Fig. 2 in der anderen Drehrichtung (Pumpbetrieb);
  • Fig. 5 eine schematische Darstellung zur Anwendung des er­findungsgemäßen Homogenisators zur Abpumpen oder zum Umwälzen des fließfähigen Produktes aus einem Homogenisiermischer;
  • Fig. 6 einen Längsschnitt durch eine zweite Ausführungs­form der Erfindung; und
  • Fig. 7 einen Querschnitt durch die Ausführungsform nach Fig. 6.
Show it:
  • 1 shows a longitudinal section through a gyro homogenizer according to the present invention.
  • Fig. 2 shows a cross section along the line II-II of Fig. 1;
  • 3 shows a detail from the illustration according to FIG. 2 when the homogenizer is operating in one direction of rotation (homogenizing operation);
  • FIG. 4 shows a detail from the illustration according to FIG. 2 in the other direction of rotation (pump operation);
  • 5 shows a schematic illustration of the use of the homogenizer according to the invention for pumping out or for circulating the flowable product from a homogenizing mixer;
  • 6 shows a longitudinal section through a second embodiment of the invention; and
  • 7 shows a cross section through the embodiment according to FIG. 6.

Von dem in den Fig. 1 und 2 dargestellten Homogenisator werden nur die für die Erläuterung der Erfindung notwendigen Teile beschrieben.Of the homogenizer shown in FIGS. 1 and 2, only the parts necessary for the explanation of the invention are described.

In einem Gehäuse 3 sind ein Stator 2 und ein Rotor 1 unterge­bracht, wobei der Rotor durch eine Antriebswelle 4 angetrieben wird. Der Homogenisator weise einen Zulauf 5 und einen Ablauf 6 auf.A stator 2 and a rotor 1 are accommodated in a housing 3, the rotor being driven by a drive shaft 4. The homogenizer has an inlet 5 and an outlet 6.

Wie insbesondere aus Fig. 2 sowie aus den Detaildarstellungen der Fig. 3 und 4 hervorgeht, weist der Stator 2 eine Mehrzahl von am Umfang verteilten Leitschaufeln 21 auf, die zwischen sich Durchflußöffnungen 22 bilden. Der auf der Antriebswelle 4 sitzende Rotor 1 weist im vorliegenden Ausführungsbeispiel vier Rotorschaufeln 11 auf, die je nach Drehrichtung verschieden gestaltete erste Förderflächen 12 und zweite Förderflächen 13 aufweisen. Während die ersten Förderflächen 12 etwa radial verlaufen, sind die zweiten Förderflächen 13 spiralförmig ausgebildet und weisen bei Drehung des Rotors 1 entgegen dem Uhrzeigersinn (in Fig. 2 gesehen) einen sich gegenüber dem Stator 2 stetig vermindernden Abstand auf.As can be seen in particular from FIG. 2 and from the detailed representations of FIGS. 3 and 4, the stator 2 has a plurality of guide vanes 21 distributed around the circumference, which form flow openings 22 between them. The rotor 1 seated on the drive shaft 4 has four in the present exemplary embodiment Rotor blades 11, which have differently shaped first conveying surfaces 12 and second conveying surfaces 13 depending on the direction of rotation. While the first conveying surfaces 12 run approximately radially, the second conveying surfaces 13 are spiral-shaped and, when the rotor 1 rotates counterclockwise (as seen in FIG. 2), they are at a continuously decreasing distance from the stator 2.

Wie insbesondere aus den vergrößerten Ausschnitten nach den Fig. 3 und 4 hervorgeht, wird bei einer Drehung im Uhr­zeigersinn entsprechend dem Richtungspfeil 16 die erste Förder­fläche 14 wirksam und das im Homogenisator befindliche fließ­fähige Produkt wird etwa in Richtung des Pfeiles 14 (Richtungs­komponente) nach außen geschleudert. Der Fig. 3 ist zu ent­nehmen, daß die Richtungskomponente 14 praktisch senkrecht auf der Hilfslinie 24 steht, die dem Verlauf der Wandungen 23 der Durchflußöffnungen 22 entspricht. Dies hat zur Folge, daß sich starke Verwirbelungen bilden und das fließfähige Produkt durch entsprechend auftretende Scherkräfte einer wirksamen Homogenisierung unterzogen wird. Die Pumpwirkung bei einer solchen Betriebsweise ist wegen der schlechten Strömungsverhältnisse außerordentlich gering.As can be seen in particular from the enlarged sections according to FIGS. 3 and 4, when rotating clockwise in accordance with the directional arrow 16, the first conveying surface 14 becomes effective and the flowable product located in the homogenizer is flung outward approximately in the direction of the arrow 14 (directional component) . 3 that the directional component 14 is practically perpendicular to the auxiliary line 24, which corresponds to the course of the walls 23 of the flow openings 22. The result of this is that strong turbulences are formed and the flowable product is subjected to effective homogenization by the corresponding shear forces. The pumping action in such an operating mode is extremely low due to the poor flow conditions.

Wird nun die Drehrichtung entsprechend der Fig. 4 und dem Pfeil 17 umgekehrt, also Drehung entgegen dem Uhrzeigersinn, so werden die zweiten Förderflächen 13 wirksam, was bedeutet, daß das fließfähige Gut im Homogenisator durch die stetig gebogene Förderfläche 13 kontinuierlich etwa in Richtung des Pfeiles 15 (Richtungskomponente) nach außen gedrückt wird. Die Richtung des Pfeiles 15 entspricht dem Verlauf der Wände 23 der Durchflußöffnungen 22, so daß dem fließfähigen Produkt nur ein geringer Widerstand entgegengesetzt wird. Dies führt zu einer guten Pumpwirkung, während die Homogenisierwirkung in dieser Betriebsweise praktisch gleich Null ist.If the direction of rotation according to FIG. 4 and the arrow 17 is reversed, that is to say counterclockwise, the second conveying surfaces 13 become effective, which means that the flowable material in the homogenizer is continuously in the direction of the arrow by the continuously curved conveying surface 13 15 (directional component) is pressed outwards. The direction of arrow 15 corresponds to the course of the walls 23 of the flow openings 22, so that the flowable product is only subjected to a slight resistance. this leads to to a good pumping action, while the homogenizing effect is practically zero in this mode of operation.

Aus einem Vergleich zwischen den Fig. 3 und 4 ist zu sehen, daß die Richtungskomponenten 14 bzw. 15 bei Homogenisierbe­trieb bzw. bei Pumpbetrieb etwa senkrecht aufeinander­stehe, was bedeutet, daß beim Homogenisierbetrieb die Strömung des fließfähigen Produktes praktisch senkrecht auf die Wandungen 23 der Leitschaufeln 21 auftreffen, so daß praktisch keine Pumpwirkung erzeugt wird. Soll dem Homogenisator jedoch eine geringfügige Pumpwirkung gegeben werden, so wird die erste Förderfläche 12 bzw. werden die Wandungen 23 des Stators 2 geringfügig abweichend von einem senkrechten Verhältnis zu­einander ausgestaltet, um eine größere nach außen gerichtete Komponente zu erzielen. Ebenso ist es möglich, bei der Be­triebsweise nach Fig. 4 eine Abweichung von der optimalen Pumpwirkung vorzusehen, wenn eine geringfügige Verwirbelung wünschenswert ist.From a comparison between FIGS. 3 and 4 it can be seen that the directional components 14 and 15 are approximately perpendicular to one another in the homogenizing mode or in the pumping mode, which means that in the homogenizing mode the flow of the flowable product is practically perpendicular to the walls 23 of the guide vanes 21 hit, so that practically no pumping effect is generated. However, if the homogenizer is to be given a slight pumping action, then the first conveying surface 12 or the walls 23 of the stator 2 are designed to be slightly different from a perpendicular relationship to one another in order to achieve a larger outwardly directed component. It is also possible to provide a deviation from the optimal pumping action in the operating mode according to FIG. 4 if a slight swirl is desirable.

In Fig. 5 ist nun gezeigt, wie mit dem erfindungsgemäßen Homogenisator, bestehend aus dem Rotor 1, dem Stator 2, der Antriebswelle 4 und einem Antriebsmotor 7, ein einfaches Umschalten vom Homogenisierbetrieb auf Abpumpen oder Umwälzen geschehen kann. Zur Steuerung dieser Vorgänge ist lediglich ein Dreiwegeventil 8 erforderlich, jedoch keinerlei zusätzliche Pumpen oder Absperrventile. Ist über das Dreiwegeventil 8 der Ablauf 6 des Homogenisators mit einem Rücklauf 9 zu einem Mischbehälter verbunden, so läuft bei der einen Drehrichtung der Homogenisierbetrieb ab, wobei das den Ablauf 6 verlassende fließfähige Produkt über den Rücklauf 9 wieder in den Mischbe­hälter 10 eingeführt wird. Ist die Homogenisierung nun abge­ schlossen und soll das fließfähige Produkt nur noch umge­wälzt oder gemischt werden, gegebenenfalls unter Hinzufü­gung einer weiteren Komponente, so wird die Drehrichtung des Motors 7 umgekehrt, und der Homogenisator pumpt das fließfähige Produkt mit großer Leistung von seinem Ablauf 6 zum Rücklauf 9 und damit in den Mischbehälter 10. Dieser Umwälz- oder Mischvorgang läuft aufgrund der sehr hohen Durchsatzleistung mit großer Intensität ab.In Fig. 5 it is shown how with the homogenizer according to the invention, consisting of the rotor 1, the stator 2, the drive shaft 4 and a drive motor 7, a simple switchover from the homogenizing operation to pumping or circulation can take place. Only a three-way valve 8 is required to control these processes, but no additional pumps or shut-off valves. If the outlet 6 of the homogenizer is connected to a return 9 to a mixing container via the three-way valve 8, the homogenization operation takes place in one direction of rotation, the flowable product leaving the outlet 6 being reintroduced into the mixing container 10 via the return 9. Is the homogenization now abge closed and the flowable product should only be circulated or mixed, possibly with the addition of another component, the direction of rotation of the motor 7 is reversed, and the homogenizer pumps the flowable product with great power from its outlet 6 to the return 9 and thus into the Mixing container 10. This circulating or mixing process takes place with great intensity due to the very high throughput.

Soll das in dem Mischbehälter 10 befindliche fließfähige Produkt jedoch lediglich über einen Abfluß 20 abgepumpt werden, so wird das Dreiwegeventil 8 umgeschaltet und der Homogenisator in umgekehrter Drehrichtung des Motors 7 (Pumpbetrieb) betrieben. In diesem Fall fließt das fließ­fähige Produkt vom Ablauf 6 über das Dreiwegeventil 8 zum Abfluß 20.However, if the flowable product in the mixing container 10 is only to be pumped out via a drain 20, the three-way valve 8 is switched over and the homogenizer is operated in the reverse direction of rotation of the motor 7 (pump operation). In this case, the flowable product flows from the outlet 6 via the three-way valve 8 to the outlet 20.

Die in den Fig. 6 und 7 dargestellte zweite Ausführungs­form des erfindungsgemäßen Homogenisators weist im Gegensatz zum ersten Ausführungsbeispiel einen anders ausgebildeten Rotor 1 und einen anders ausgebildeten Stator 2 auf. Der Homogenisator ist insbesondere zwei­stufig ausgebildet, um die Homogenisierungswirkung noch weiter zu verbessern; es ist jedoch auch möglich, einen einstufigen Homogenisator in der Art der zweiten Aus­führungsform nach dem erfindungsgemäßen Prinzip aufzu­bauen.In contrast to the first exemplary embodiment, the second embodiment of the homogenizer according to the invention shown in FIGS. 6 and 7 has a differently designed rotor 1 and a differently designed stator 2. The homogenizer is designed in particular in two stages in order to further improve the homogenization effect; however, it is also possible to construct a single-stage homogenizer in the manner of the second embodiment according to the principle according to the invention.

Der über eine Antriebswelle 4 angetriebene Rotor 1 ent­hält innere Rotorschaufeln 11a und äußere Rotorschau­feln 11b. Der Stator 2 weist innere Leitschaufeln 21a und äußere Leitschaufeln 21b auf, wobei jeweils Rotor­schaufeln und Leitschaufeln abwechselnd hintereinander angeordnet sind. Die in Fig. 7 angedeuteten Richtungs­pfeile 17 des Rotors 1 beziehen sich auf die Pump­richtung des Homogenisators, und es wird das fließ­fähige Produkt in Richtung der Pfeile 18 angesaugt und in Richtung der Pfeile 19 in den Ablauf 6 abgepumpt. Die Durchflußöffnungen 22a zwischen den Rotorschaufeln 11a und 11b sind gegenüber der Radialen entgegen der Drehrichtung 17 geneigt (Pumprichtung), während die durchflußöffnungen 22b zwischen den Leitschaufeln 21a und 21b gegenüber der Radialen in Drehrichtung 17 ge­neigt sind. Dies bedeutet also, daß die Neigung der Rotorschaufeln 11a und 11b gegenüber der Neigung der Statorschaufeln 21a und 21b entgegengesetzt ist.The rotor 1, which is driven via a drive shaft 4, contains inner rotor blades 11a and outer rotor blades 11b. The stator 2 has inner guide blades 21a and outer guide blades 21b, rotor blades and guide blades being arranged alternately one behind the other. The directional arrows 17 of the rotor 1 indicated in FIG. 7 relate to the pumping direction of the homogenizer, and the flowable product is drawn in in the direction of the arrows 18 and pumped out in the direction 6 of the arrows 6 into the outlet 6. The flow openings 22a between the rotor blades 11a and 11b are inclined with respect to the radial direction opposite to the direction of rotation 17 (pumping direction), while the flow openings 22b between the guide blades 21a and 21b are inclined with respect to the radial direction in the direction of rotation 17. This means that the inclination of the rotor blades 11a and 11b is opposite to the inclination of the stator blades 21a and 21b.

Bei der Drehung des Rotors 1 in Richtung des Pfeiles 17 (Pumprichtung) ergibt sich also ein kontinuierlicher Strom des fließfähigen Produktes von der Mitte in Richtung auf den inneren Satz von Leitschaufeln 21a, durchfließt die dazwischenliegenden Durchflußöffnungen 22b und wird anschließend durch den äußeren Satz von Rotorschaufeln 11b weiter beschleunigt und in die Durchflußöffnungen 22b der äußeren Leitschaufeln 21b gedrückt. Die Richtungen der Durchflußöffnungen 22a und 22b zwischen den Rotorschaufeln und den Leitschaufeln ist entsprechend der Viskosität des zu pumpenden Pro­duktes derart optimiert, daß sich eine optimale Pump­leistung ergibt.When the rotor 1 rotates in the direction of the arrow 17 (pump direction), there is therefore a continuous flow of the flowable product from the center towards the inner set of guide vanes 21a, flows through the intermediate flow openings 22b and is then through the outer set of rotor blades 11b further accelerated and pressed into the flow openings 22b of the outer guide vanes 21b. The directions of the flow openings 22a and 22b between the rotor blades and the guide blades are optimized in accordance with the viscosity of the product to be pumped in such a way that optimum pumping performance is obtained.

Wird der Rotor 1 jedoch in Gegenrichtung des Pfeiles 17 in Drehung versetzt, so trifft der Strom des durch die Durchflußöffnungen 22a des Rotors fließenden Produktes etwa senkrecht auf die Wände der Durchflußöffnungen 22b des Stators 2, so daß sich hier eine starke Verwirbe­lung und damit eine gute Homogenisierungswirkung er­gibt.However, if the rotor 1 is rotated in the opposite direction of the arrow 17, the flow of the product flowing through the flow openings 22a of the rotor hits the walls of the flow openings 22b of the stator 2 approximately perpendicularly, so that there is a strong swirl and therefore a good one Homogenizing effect results.

Beiden Ausführungsformen ist gemeinsam, daß der Homo­genisator derart ausgebildet ist, daß sich in der einen Drehrichtung optimale Verhältnisse für eine wirkungs­volle Homogenisierung ergeben, während in der entgegen­gesetzten Drehrichtung optimale Strömungsverhältnisse für eine optimale Pumpwirkung eingestellt sind.Both embodiments have in common that the homogenizer is designed in such a way that in one direction of rotation there are optimal conditions for effective homogenization, while in the opposite direction of rotation optimal flow conditions are set for an optimal pumping action.

Claims (9)

1. Homogenisator für die Herstellung eines fließfähigen Produktes wie Emulsion oder dergleichen mit einem von einem Motor angetriebenen und Rotorschaufeln aufweisen­den Rotor und mit einem Durchflußöffnungen aufweisenden Stator, der den Rotor umgibt und durch den das Gut von innen nach außen strömt,
dadurch gekennzeichnet, daß der Rotor sowohl in der einen (16) als auch in der anderen (17) Drehrichtung an­treibbar ist und
daß die Förderflächen (12, 13) der Rotorschaufeln (11; 11a, 11b) gegenüber den Durchflußöffnungen (22; 22b) des Stators (2) derart geformt sind, daß in der einen Drehrichtung (16) der Strom des fließfähigen Produktes etwa rechtwinklig auf die Wände (23) der Durchfluß­öffnungen (22; 22b) auftrifft und eine optimale Homo­genisierungswirkung erzielt wird, in der anderen Dreh­richtung (17) jedoch in Richtung der Durchflußöffnungen (22; 22b) gerichtet ist und eine optimale Pumpwirkung erzielt.1. Homogenizer for the production of a flowable product such as emulsion or the like with a rotor driven by a motor and having rotor blades and with a stator having through-flow openings, which surrounds the rotor and through which the material flows from the inside to the outside,
characterized in that the rotor can be driven both in one (16) and in the other (17) direction of rotation and
that the conveying surfaces (12, 13) of the rotor blades (11; 11a, 11b) with respect to the flow openings (22; 22b) of the stator (2) are shaped such that in one direction of rotation (16) the flow of the flowable product is approximately at right angles the walls (23) of the flow openings (22; 22b) meet and an optimal homogenization effect is achieved, but in the other direction of rotation (17) is directed in the direction of the flow openings (22; 22b) and achieves an optimal pumping effect. 2. Homogenisator nach Anspruch 1,
dadurch gekennzeichnet, daß die Rotorschaufeln (11) mit in der einen Drehrichtung (16) wirksamen, für das Homo­genisieren ausgebildeten, ersten Förderflächen (12) und mit in der anderen Drehrichtung (17) wirksamen, für ein optimales Pumpen ausgebildeten, zweiten Förderflächen (13) versehen sind.2. Homogenizer according to claim 1,
characterized in that the rotor blades (11) have first conveying surfaces (12) which are effective for homogenization in one direction of rotation (16) and second conveying surfaces (13) which are effective in the other direction of rotation (17) and are designed for optimal pumping ) are provided. 3. Homogenisator nach Anspruch 2,
dadurch gekennzeichnet, daß die ersten Förderflächen (12) der Rotorschaufeln (11) etwa radial verlaufen und daß die zweiten Förderflächen (13) einen spiralförmigen Verlauf mit sich bei Drehung in der anderen Dreh­richtung (17) gegenüber dem Stator (2) stetig ver­minderndem Abstand aufweisen.3. homogenizer according to claim 2,
characterized in that the first conveying surfaces (12) of the rotor blades (11) run approximately radially and in that the second conveying surfaces (13) have a spiral course with a continuously decreasing distance from the stator (2) when rotating in the other direction of rotation (17) . 4. Homogenisator nach Anspruch 2 oder 3,
dadurch gekennzeichnet, daß die Richtungskomponenten (14, 15) der ersten (12) und zweiten (13) Förderflächen in den beiden Drehrichtungen (16, 17) etwa senkrecht zu­einander verlaufen.4. Homogenizer according to claim 2 or 3,
characterized in that the directional components (14, 15) of the first (12) and second (13) conveying surfaces run approximately perpendicular to one another in the two directions of rotation (16, 17). 5. Homogenisator nach Anspruch 3 oder 4,
dadurch gekennzeichnet, daß der Stator (2) eine Mehr­zahl von am Umfang verteilten Leitschaufeln (21) auf­weist, deren Durchflußöffnungen (22) etwa parallel zu der Richtungskomponente (15) bei Pumpbetrieb in der anderen Drehrichtung (17) verlaufen.5. Homogenizer according to claim 3 or 4,
characterized in that the stator (2) has a plurality of guide vanes (21) distributed around the circumference, the flow openings (22) of which run approximately parallel to the directional component (15) in pumping operation in the other direction of rotation (17). 6. Homogenisator nach Anspruch 1,
dadurch gekennzeichnet, daß der Rotor (1) eine Vielzahl von gegenüber der Radialen geneigten Rotorschaufeln (11a, 11b) und der Stator (2) eine Vielzahl von gegen­über der Radialen geneigten Leitschaufeln (21a, 21b) aufweist, daß die Neigung der Rotorschaufeln (11a, 11b) gegenüber der Neigung der Statorschaufeln (21, 21b) ent­gegengesetzt ist.6. Homogenizer according to claim 1,
characterized in that the rotor (1) has a plurality of rotor blades inclined with respect to the radial (11a, 11b) and the stator (2) has a plurality of guide vanes (21a, 21b) inclined with respect to the radial that the inclination of the rotor blades (11a, 11b) is opposite to the inclination of the stator blades (21, 21b). 7. Homogenisator nach Anspruch 6,
dadurch gekennzeichnet, daß jeweils zwei Sätze von Rotorschaufeln (11a, 11b) und zwei Sätze von Leit­schaufeln (21, 21b) vorgesehen sind.7. homogenizer according to claim 6,
characterized in that two sets of rotor blades (11a, 11b) and two sets of guide blades (21, 21b) are provided. 8. Homogenisator nach mindestens einem der vorher­gehenden Ansprüche,
dadurch gekennzeichnet, daß ein Dreiwegeventil vorge­sehen ist, über das das fließfähige Produkt einem Ab­fluß (20) zuleitbar ist.8. Homogenizer according to at least one of the preceding claims,
characterized in that a three-way valve is provided, via which the flowable product can be fed to a drain (20). 9. Homogenisator nach einem oder mehreren der vorher­gehenden Ansprüche,
dadurch gekennzeichnet, daß zum Umwälzen des fließ­fähigen Produktes oder zum Beimischen einer zusätz­lichen Komponente zum Produkt die Drehrichtung des Rotors (1) umgekehrt wird.9. Homogenizer according to one or more of the preceding claims,
characterized in that the direction of rotation of the rotor (1) is reversed to circulate the flowable product or to add an additional component to the product.
EP88107285A 1987-05-08 1988-05-06 Homogenising machine for the production of fluid products Expired - Lifetime EP0290033B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107285T ATE80807T1 (en) 1987-05-08 1988-05-06 HOMOGENIZER FOR THE MANUFACTURE OF FLOWABLE PRODUCTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873715331 DE3715331A1 (en) 1987-05-08 1987-05-08 HOMOGENIZER FOR THE PRODUCTION OF FLOWABLE PRODUCTS
DE3715331 1987-05-08

Publications (2)

Publication Number Publication Date
EP0290033A1 true EP0290033A1 (en) 1988-11-09
EP0290033B1 EP0290033B1 (en) 1992-09-23

Family

ID=6327089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107285A Expired - Lifetime EP0290033B1 (en) 1987-05-08 1988-05-06 Homogenising machine for the production of fluid products

Country Status (3)

Country Link
EP (1) EP0290033B1 (en)
AT (1) ATE80807T1 (en)
DE (2) DE3715331A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2679789A1 (en) * 1991-07-31 1993-02-05 Ouest Enrobes Modernes Pulsation disperser-mixer for the preparation of thermoplastic products, in particular bituminous products
EP0801974A1 (en) * 1996-04-17 1997-10-22 Haagen &amp; Rinau Mischtechnik GmbH Device for homogenizing and/or dispersing a flowable material
EP0988887A1 (en) * 1998-08-25 2000-03-29 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Homogenizer with protecting device on the rotor
EP1197260A1 (en) * 2000-10-11 2002-04-17 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Apparatus for homogenizing flowable materials
DE19537303B4 (en) * 1995-08-29 2005-04-21 Vakumix Rühr- und Homogenisiertechnik AG Device for homogenizing flowable substances
WO2007060501A1 (en) * 2005-11-23 2007-05-31 Frymakoruma Ag Homogenizer having a rotor and an advance wheel (inducer screw) which is contrarotatable to the rotor, and having a contrarotator which is contrarotatable to the rotor
EP1844849A1 (en) * 2006-03-29 2007-10-17 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Apparatus for homogenising, mixing or dispersing of flowable media
US7325966B2 (en) 2003-05-09 2008-02-05 Ika-Werke Gmbh & Co. Kg Device for dispersion and/or homogenization
EP2092975A3 (en) * 2008-02-25 2009-09-02 LIPP Mischtechnik GmbH Mixing device with a mixing bowl fixed to a mix container
BE1022904B1 (en) * 2015-07-13 2016-10-11 Packo Inox N.V. ROTOR STATOR MIXER
WO2020156805A1 (en) * 2019-02-01 2020-08-06 Ystral Gmbh Maschinenbau + Processtechnik Rotor for a device for mixing powder and liquid, and device for mixing powder and liquid
CN112210421A (en) * 2020-10-22 2021-01-12 佛山肯天新材料科技有限公司 Graphene lubricating grease production process
US11931707B1 (en) * 2023-11-16 2024-03-19 Herman Hockmeyer System for agglomerate mixing having a rotor and angular slotted stator

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19916053B4 (en) * 1999-04-09 2005-05-19 Vakumix Rühr- und Homogenisiertechnik AG Device for homogenizing flowable substances
DE19919859C2 (en) * 1999-04-30 2002-08-22 Guenter Slowik Method and device for treating substance or mixture of substances located in a container, in particular by mixing or stirring processes, rotating around the container axis
DE19923378C2 (en) * 1999-05-21 2003-04-30 Vakumix Ruehr Und Homogenisier Device for homogenizing flowable substances
DE20002920U1 (en) 2000-02-18 2000-04-20 Schroeder & Boos Misch Und Anl Homogenizer
CN100482305C (en) * 2004-02-21 2009-04-29 西北工业大学 Splitting shearer
JP2013132573A (en) * 2011-12-26 2013-07-08 Jtekt Corp Mixing and dispersing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388889A (en) * 1972-08-11 1975-03-26 Giusti Son Ltd T Rotary mixing apparatus
DE3243671A1 (en) * 1982-11-25 1984-05-30 Karg Ytron Gmbh DEVICE FOR CONTINUOUSLY MIXING POWDERED SUBSTANCES WITH LIQUIDS
DE3417242A1 (en) * 1984-05-10 1985-11-14 Haagen & Rinau Homogenising appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH466818A (en) * 1967-12-08 1968-12-15 Pista Sa Process for treating a liquid by means of a gaseous fluid and installation for carrying out this process
DE2805942C2 (en) * 1978-02-13 1986-09-18 Alwin 2800 Bremen Berents Device for homogenizing flowable substances
DE3517879A1 (en) * 1985-05-17 1986-11-20 Ytron Dr. Karg GmbH, 7151 Affalterbach CYCLONE MIXING DEVICE FOR CONTINUOUSLY MIXING POWDERED SUBSTANCES WITH LIQUIDS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1388889A (en) * 1972-08-11 1975-03-26 Giusti Son Ltd T Rotary mixing apparatus
DE3243671A1 (en) * 1982-11-25 1984-05-30 Karg Ytron Gmbh DEVICE FOR CONTINUOUSLY MIXING POWDERED SUBSTANCES WITH LIQUIDS
DE3417242A1 (en) * 1984-05-10 1985-11-14 Haagen & Rinau Homogenising appliance

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2679789A1 (en) * 1991-07-31 1993-02-05 Ouest Enrobes Modernes Pulsation disperser-mixer for the preparation of thermoplastic products, in particular bituminous products
DE19537303B4 (en) * 1995-08-29 2005-04-21 Vakumix Rühr- und Homogenisiertechnik AG Device for homogenizing flowable substances
EP0801974A1 (en) * 1996-04-17 1997-10-22 Haagen &amp; Rinau Mischtechnik GmbH Device for homogenizing and/or dispersing a flowable material
EP0988887A1 (en) * 1998-08-25 2000-03-29 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Homogenizer with protecting device on the rotor
EP1197260A1 (en) * 2000-10-11 2002-04-17 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Apparatus for homogenizing flowable materials
US7325966B2 (en) 2003-05-09 2008-02-05 Ika-Werke Gmbh & Co. Kg Device for dispersion and/or homogenization
US8721168B2 (en) 2005-11-23 2014-05-13 Frymakoruma Ag Homogenizer device having a rotor and an advance wheel (inducer screw) that can rotate opposite to the rotor and a counter-current rotor that can rotate opposite to the rotor
WO2007060501A1 (en) * 2005-11-23 2007-05-31 Frymakoruma Ag Homogenizer having a rotor and an advance wheel (inducer screw) which is contrarotatable to the rotor, and having a contrarotator which is contrarotatable to the rotor
EP1844849A1 (en) * 2006-03-29 2007-10-17 Vakumix Rühr- und Homogenisiertechnik Aktiengesellschaft Apparatus for homogenising, mixing or dispersing of flowable media
EP2092975A3 (en) * 2008-02-25 2009-09-02 LIPP Mischtechnik GmbH Mixing device with a mixing bowl fixed to a mix container
BE1022904B1 (en) * 2015-07-13 2016-10-11 Packo Inox N.V. ROTOR STATOR MIXER
WO2020156805A1 (en) * 2019-02-01 2020-08-06 Ystral Gmbh Maschinenbau + Processtechnik Rotor for a device for mixing powder and liquid, and device for mixing powder and liquid
CN112210421A (en) * 2020-10-22 2021-01-12 佛山肯天新材料科技有限公司 Graphene lubricating grease production process
US11931707B1 (en) * 2023-11-16 2024-03-19 Herman Hockmeyer System for agglomerate mixing having a rotor and angular slotted stator

Also Published As

Publication number Publication date
DE3715331C2 (en) 1992-11-26
ATE80807T1 (en) 1992-10-15
EP0290033B1 (en) 1992-09-23
DE3874801D1 (en) 1992-10-29
DE3715331A1 (en) 1988-12-01

Similar Documents

Publication Publication Date Title
EP0290033B1 (en) Homogenising machine for the production of fluid products
DE60120738T2 (en) DYNAMIC MIXER
DE69113616T2 (en) SIDE CHANNEL PUMP.
DE60317772T2 (en) TWO DIRECTION MIXED ROTOR AND METHOD
EP0884479B1 (en) Feed pump
DE2160410A1 (en) Mixing device
DE3886572T2 (en) Inlet for a positive displacement pump.
DE202016000169U1 (en) Pumping and / or mixing device for conveying, homogenizing and / or dispersing flowable products
CH678352A5 (en)
DE2322772B2 (en) Sewage pump
DE1453730A1 (en) Radial pump
CH664092A5 (en) HOMOGENIZING MACHINE.
DE112019001195T5 (en) Rotary mixer in an injection machine for a two-liquid mixture
DE69213703T2 (en) Rotor provided with a divided blade, especially for internal type mixing machine
DE3222164C2 (en)
EP1131560B1 (en) Side channel pump
DE19537303A1 (en) Device for homogenizing flowable substances
DE3922782A1 (en) Molecular pump in a unit design
EP3384990B1 (en) Milling arrangement for a basket mill and basket mill
EP3865711A1 (en) Fan with cover plate on the rotor bell
DE2216444A1 (en) MIXING DEVICE FOR THE PRODUCTION OF A HOMOGENOUS MIXTURE FROM SEVERAL MATERIAL COMPONENTS
AT502226B1 (en) WATER TURBINE OR PUMP TURBINE OR OTHER HYDRAULIC MACHINE
EP2001581B1 (en) Homogenizer
DE102023201351B3 (en) Mixing device for mixing an additive with a liquid in a washing machine, washing machine and method
CH650563A5 (en) Diffuser in a centrifugal driven machine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR GB LI

17P Request for examination filed

Effective date: 19890310

17Q First examination report despatched

Effective date: 19910416

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920923

REF Corresponds to:

Ref document number: 80807

Country of ref document: AT

Date of ref document: 19921015

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3874801

Country of ref document: DE

Date of ref document: 19921029

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19930506

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: HAAGEN & RINAU-MISCHTECHNIK GMBH

Effective date: 19930601

26 Opposition filed

Opponent name: IKA-MASCHINENBAU JANKE & KUNKEL GMBH & CO. KG

Effective date: 19930616

Opponent name: HAAGEN & RINAU-MISCHTECHNIK GMBH

Effective date: 19930601

Opponent name: KORUMA MASCHINENBAU GMBH

Effective date: 19930616

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 19941007

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070515

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20070523

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070524

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20080505

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20080505