EP2440315A1 - Stirring device - Google Patents

Stirring device

Info

Publication number
EP2440315A1
EP2440315A1 EP10734666A EP10734666A EP2440315A1 EP 2440315 A1 EP2440315 A1 EP 2440315A1 EP 10734666 A EP10734666 A EP 10734666A EP 10734666 A EP10734666 A EP 10734666A EP 2440315 A1 EP2440315 A1 EP 2440315A1
Authority
EP
European Patent Office
Prior art keywords
stirring
rotating
gas
outlet
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
EP10734666A
Other languages
German (de)
French (fr)
Other versions
EP2440315B1 (en
Inventor
Werner Himmelsbach
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.)
EKATO Ruehr und Mischtechnik GmbH
Original Assignee
EKATO Ruehr und Mischtechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EKATO Ruehr und Mischtechnik GmbH filed Critical EKATO Ruehr und Mischtechnik GmbH
Publication of EP2440315A1 publication Critical patent/EP2440315A1/en
Application granted granted Critical
Publication of EP2440315B1 publication Critical patent/EP2440315B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • 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
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/111—Centrifugal stirrers, i.e. stirrers with radial outlets; Stirrers of the turbine type, e.g. with means to guide the flow
    • 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
    • B01F35/71—Feed mechanisms
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F2035/35—Use of other general mechanical engineering elements in mixing devices
    • B01F2035/351—Sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F23/23311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F23/23316—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a separate hollow guide substantially parallel with the stirrer element

Definitions

  • the invention relates to a stirring arrangement with a rotating stirrer for stirring liquids, which has attached to a Rhackorgannabe stirring blades. Furthermore, the stirring arrangement comprises a gassing device, which supplies a gas, such as air, for dispersing by means of the stirring element.
  • a gas such as air
  • reaction taking place in many chemical reactors or bioreactors which contain a stirring arrangement
  • reactions take place in which at least one reaction partner is available as gaseous starting component.
  • the agitating device is intended to finely divide the gaseous component thereby providing a large interface between the gaseous component or the liquid in such a way that the gaseous component at least partially or completely dissolves and participates in the reaction taking place in the reactor.
  • the task of dispersing gas usually occurs in practice with other primary tasks, such as the mixing of liquid streams of different toughness, with which further reactants are fed, the suspending of solids, the heat transfer to heat exchange elements, the circulation of the liquid to the surface for evaporation of solvents, precipitation and crystallization of solids etc ..
  • WO 2008/083673 A2 discloses a stirring arrangement with a stirrer and a gassing device of the type mentioned in the introduction. This gassing device supplies gas below or laterally of the agitator and this gas is dispersed by means of the agitator. In this design of the stirring arrangement, the gas delivery and distribution takes place either laterally and / or below the stirring element in a relatively large distance thereof.
  • EP 0 847 709 A1 discloses a stirring element which is used in particular as a gasification stirring element for stirring liquids.
  • the liquids a gas, for example air, fed.
  • a gas supply via a feed pipe whose mouth is below the stirring axis of the stirrer takes place.
  • a plurality of supply pipes may be provided below and / or laterally spaced from the stirring element. The gas is supplied to the outflow of the stirring element of the stirring arrangement via these tubes.
  • EP 1 055 450 B1 shows an agitator in which a gas is supplied via co-rotating distributor elements.
  • a gas supply can be done via stationary installed feeds, such as pipes below the stirrer or Rohrer side next to the stirrer or an annular gas distributor, a so-called ring shower, which is arranged below the agitator.
  • a ring shower has distributed over the circumference a plurality of openings through which the agitator to be supplied gas can escape.
  • a gas supply can also take place via co-rotating distributor elements, as is the case with the agitator described in EP 1 055 450 B1.
  • the rotating distributor elements for gassing are arranged outside of the actual agitator, so that optimal gassing can no longer take place.
  • gassing devices comprise a plurality of individual and separate components, which rigid mounts must be assigned to avoid flow-induced vibrations. If necessary, high-grade material, duplex steels, alloys or titanium must be used for reasons of corrosion. Overall, therefore, the previous gassing facilities are complex, include several items and therefore are complex in terms of construction and costly.
  • the invention aims to provide a structurally simple as possible gas supply to the stirring element of a stirring arrangement while achieving a significant cost savings, and also to achieve a targeted gas delivery in any desired fluidically desired location of the stirring element or the stirring blades.
  • an optimal dispersion of Gas can be achieved without affecting the fulfillment of a primary task of the stirring arrangement.
  • a stirring arrangement with a rotating stirrer for stirring liquids which comprises attached to a Rrockorgannabe stirring blades, and with a gassing device which supplies a gas, such as air, for dispersing mitteis of, stirring member provided;
  • the gassing comprises a with the hub of Rchanorangs rotating distributor bushing with an interior for receiving gas, which communicates with co-rotating outlet lines in communicating connection.
  • the invention is characterized in that outlet openings of the outlet ducts are arranged in the immediate vicinity of the stirring blades and within the volume swept by the stirring member or in the immediate outflow zones and deliver the gas at respectively desired locations with the respective desired flow direction.
  • co-rotating outlet lines are provided with outlet openings arranged in the immediate vicinity of the stirring blades, so that their storage and mounting is simplified. These outlet lines also allow the gas to be discharged in a targeted manner at any location of the stirring element or the stirring blade that is favorable for flow mechanics.
  • the gas is passed from the distribution box to the respective desired outlet openings.
  • the gassing device preferably comprises a stationary supply line, which is sealed in communicating connection with the inner raum of the rotating distribution socket is.
  • a supply of the gaseous component to the stirring element via a single central supply line, whereby one obtains a substantially simplified construction of a stirring arrangement comprising an agitation system and a gassing device.
  • the stationary central supply line communicates in a sealed manner with the interior of a central distribution manifold rotating with the hub of the stirring element.
  • the rotating distribution box is arranged coaxially and below the Rlickorgannabe. This provides a space-saving arrangement and training of a rotating distributor body.
  • the gas supply points which are formed by the outlet openings of the outlet lines, are within the volume swept by the stirring element.
  • the outlet lines allow a free choice of the optimum points of gas release in the immediate vicinity of the stirring blades. Both the outflow direction of the supplied gas and the outflow point can be selected in an optimal manner, taking into account the respective design of the stirring element.
  • the exhaust ducts exiting the manifold may be separate from the stirrer blades and their orifices may be above the blade height or perimeter.
  • the mouth openings or outlets of the outlet lines may be in the area of the agitator blades, and such design forms are also possible in which these port openings lie between the agitator blades.
  • the outlet lines can be integrated into the stirring blades of the stirring element.
  • transition from the stationary supply line and the distributor tube rotating with the stirring element, with the interior of which the outlet lines are in communicating connection are to be designed such that the amount of loss at the transition from stationary to rotating part is as low as possible and thus a reliable seal at the transition region he follows.
  • a hydrostatic closure may be provided at this transition region, or it may be provided a substantial wear-free, axial or radial gap arrangement, which carries out the desired sealing.
  • a single central gas supply is provided, which is fixed, and which cooperates with a rotating distribution box whose interior forms a gas receiving space. From this central, co-rotating manifold then the outlet pipes which co-rotate, fed, and these co-rotating outlet with outlet ports in close proximity to the stirring blades and within swept by the stirring or volume in the immediate Ausströmzonen can then optimize the stirring assembly to the respective best Make the supply gas and give this emitted gas stream also a desired flow direction to improve the reaction participation of the gas.
  • Figure 1 is a schematic side view of a stirring arrangement with a stirrer and a gassing device according to the invention.
  • FIG. 2 shows a schematic side view of a stirring arrangement with a stirring element and a gassing device according to an embodiment variant according to the invention.
  • FIG. 1 shows a first embodiment of a stirring arrangement, designated overall by 1.
  • This stirring arrangement 1 has a rotating stirring element 2, which is intended for stirring liquids.
  • the stirring element 2 comprises a stirring or supply hub 3, to which stirring blades 4 are attached.
  • the stirring blades 4 may be of any desired shape and design.
  • the stirring arrangement 1 comprises a gassing device, generally designated 5, which supplies a gas, such as air, for dispersing by means of the stirring element 2.
  • the gassing device 5 comprises a distributor bushing 6 which rotates with the agitator intake hub 3 of the agitation system 2.
  • This distributor bushing 6 encloses an interior which serves for receiving gas.
  • the distributor bushing 6 or the interior thereof is in communicating connection with co-rotating outlet lines 7, which discharge the gas at respectively desired locations with a respective desired flow direction.
  • the gassing device 5 comprises a stationary supply line 8 which is sealed in communicating connection with the interior of the rotating distribution box 6.
  • the co-rotating outlet lines 7 are formed separately to the stirring blades 4.
  • a single, central, stationary supply line 8 is provided for a gas to be supplied.
  • the distribution box 6 is arranged coaxially and below the Rrockorgannabe 3, which has the interior for gas absorption.
  • the stationary supply line 8 and the rotating distribution box 6 communicate with each other in a sealed manner in communication.
  • the design is chosen such that the amount of loss at the seal of the transition from stationary supply line 8 and rotating distributor bushing 6 is as small as possible.
  • a hydrostatic closure can be provided at this transition region, or the tight connection of fixed supply line 8 and rotating distribution sleeve 6 by means of a wear-free, axial or radial gap arrangement.
  • the gas introduced via the fixed feed line 8 into the interior of the rotating distributor bushing 6 is released in a design of the stirring arrangement 1 via the co-rotating outlet lines 7 of the gassing device 5 at a respectively desired, suitable location, the feed points within the volume swept by the stirring element 2 lie.
  • the gas can be discharged and discharged at the mouth openings of the co-rotating outlet lines 7 with a respective desired flow direction.
  • These mouth openings of the outlet lines 7 may be in the region of the stirring blades 4, or they may also be arranged between them. However, they are always arranged in the immediate vicinity of the stirring blades and within the volume swept by the stirring element.
  • These mouth openings of the outlet lines 7 can also be above or below the vertical extent of the stirring blades 4.
  • the most favorable locations for the outlet openings of the outlet lines 7 and the most favorable outlet directions can be optimally selected. Due to the compact design of the Gasing device 5 can save in particular assembly costs and / or material costs and reduce. Furthermore, since the outlet lines 7 rotate with one another, the rigid holders for the outlet lines can be omitted without replacement in order to avoid flow-induced oscillations.
  • the stirring assembly 1 according to the invention is due to their inventive design relatively inexpensive and associated with much reduced design effort.
  • the stirrer 2 of the stirrer assembly 1 according to the invention can therefore finely divided the supplied gas in a very efficient manner, so that optimum reaction conditions of gas and liquid can be realized in a reactor.
  • FIG. 2 shows examples of alternatives of the embodiments of the outlet ducts 7 as well as the orientations and the arrangements of the mouth openings thereof. Also, there is an example indicated in which the outlet 7 is integrated into the associated stirring blade 4. All further details of the stirring arrangement 1 'according to FIG. 2 correspond to the details of the stirring arrangement 1 according to FIG. A more detailed explanation is therefore unnecessary.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

The invention relates to a stirring device having a rotating stirring organ (2) for stirring fluids. The stirring organ (2) has stirring blades (4) mounted on a stirring organ hub (3). The stirring organ further comprises a gasification device (5) feeding a gas, such as air, for dispersing by means of the stirring organ (2). The gasification device (5) comprises a distribution bushing (6) rotating with the hub (3) of the stirring organ (2) and having an interior for receiving the gas. Said distribution bushing (6) and the interior thereof are connected and communicate with co-rotating outlet lines (7). Outlet openings of the outlet lines (7) are disposed in the immediate vicinity of the stirring blades (4) and within the volume swept by the stirring organ (2) or in the immediate outflow zones, and exude the gas at desired locations in the desired flow direction in each case.

Description

Rühranordnung stirring arrangement
Beschreibungdescription
Die Erfindung bezieht sich auf eine Rühranordnung mit einem sich drehenden Rührorgan zum Rühren von Flüssigkeiten, welches an eine Rührorgannabe angebrachte Rührblätter aufweist. Ferner umfasst die Rühranordnung eine Begasungseinrichtung, welche ein Gas, wie Luft, zum Dispergieren mittels des Rührorgans zuführt.The invention relates to a stirring arrangement with a rotating stirrer for stirring liquids, which has attached to a Rührorgannabe stirring blades. Furthermore, the stirring arrangement comprises a gassing device, which supplies a gas, such as air, for dispersing by means of the stirring element.
Bei vielen chemischen Reaktoren oder Bioreaktoren, welche eine Rühranordnung enthalten, erfolgen Reaktionen, bei denen mindestens ein Reaktionspartner als gasförmige Ausgangskomponente zur Verfügung steht. Die Rühranordnung hat zum Ziel, die gasförmige Komponente fein zu zerteilen und hierdurch eine große Grenzfläche zwischen der gasförmigen Komponente oder der Flüssigkeit in einer solchen Weise bereitzustellen, dass die gasförmige Komponente wenigstens teilweise oder ganz in Lösung geht und an der im Reaktor laufenden Reaktion teilnimmt.In many chemical reactors or bioreactors which contain a stirring arrangement, reactions take place in which at least one reaction partner is available as gaseous starting component. The agitating device is intended to finely divide the gaseous component thereby providing a large interface between the gaseous component or the liquid in such a way that the gaseous component at least partially or completely dissolves and participates in the reaction taking place in the reactor.
Es gibt somit Anwendungen, bei welchen die Rühranordnung ein Gas zu dispergieren hat. Die Aufgabe des Dispergierens von Gas tritt in der Praxis meistens mit weiteren primären Aufgaben auf, wie beispielsweise dem Mischen von Flüssigkeitsströmen unterschiedlicher Zähigkeiten, mit denen weitere Reaktionspartner eingespeist werden, dem Suspendieren von Feststoffen, der Wärmeübertragung an Wärmeaustauschelemente, dem Umwälzen der Flüssigkeit an die Oberfläche zum Abdampfen von Lösungsmitteln, dem Ausfällen und Kristallisieren von Feststoffen etc..There are thus applications in which the stirring arrangement has to disperse a gas. The task of dispersing gas usually occurs in practice with other primary tasks, such as the mixing of liquid streams of different toughness, with which further reactants are fed, the suspending of solids, the heat transfer to heat exchange elements, the circulation of the liquid to the surface for evaporation of solvents, precipitation and crystallization of solids etc ..
Zum optimalen Lösen der primären Aufgaben wurde in der Vergangenheit eine Vielzahl von Rührorganen entwickelt, die sich in Bezug auf die Förderrichtung, nämlich radial und/oder axial, die Anzahl von Rührflügeln, die Form von Rührflügeln und die Anzahl von Rührstufen unterscheiden können.In order to optimally solve the primary tasks, a large number of stirring elements has been developed in the past, which in terms of the conveying direction, namely radial and / or axial, the number of impellers, the shape of agitator blades and the number of agitation stages can differ.
Stand der Technik, wie er beispielsweise in US 4 371 480 A und in DE 92 01 820 U1 beschrieben ist, gibt es Rühranordnungen, bei welchen Gas vom Rührorgan angesaugt wird. Demgegenüber gibt es Rühranordnungen mit "Fremdbegasung", was bedeutet, dass das Gas nicht vom Rührorgan angesaugt wird, sondern von einem Gebläse oder Verdichter oder aus einem Druckspeicher zugeführt wird. Es folgen einige Beispiele für solche bekannten Rühranordnungen.Prior art, as described for example in US 4,371,480 A and DE 92 01 820 U1, there are stirring arrangements, in which gas is sucked in by the stirring element. In contrast, there are stirring arrangements with "external gasification", which means that the gas is not sucked in by the stirring element, but is fed by a blower or compressor or from an accumulator. Below are some examples of such known stirring arrangements.
Aus WO 2008/083673 A2 ist eine Rühranordnung mit einem Rührorgan und einer Begasungseinrichtung der eingangs genannten Art bekannt. Diese Begasungseinrichtung führt Gas unterhalb oder seitlich des Rührorgans zu und dieses Gas wird mittels des Rührorgans dispergiert. Bei dieser Auslegung der Rühranordnung erfolgt die Gasabgabe und -Verteilung entweder seitlich und/oder unterhalb des Rührorgans in einem relativ großen Abstand hiervon.WO 2008/083673 A2 discloses a stirring arrangement with a stirrer and a gassing device of the type mentioned in the introduction. This gassing device supplies gas below or laterally of the agitator and this gas is dispersed by means of the agitator. In this design of the stirring arrangement, the gas delivery and distribution takes place either laterally and / or below the stirring element in a relatively large distance thereof.
Aus EP 0 847 709 A1 ist ein Rührorgan bekannt, welches insbesondere als Be- gasungs-Rührorgan zum Rühren von Flüssigkeiten eingesetzt wird. Den Flüssigkeiten wird ein Gas, beispielsweise Luft, zugeführt. Bei diesem Begasungs- Rührorgan erfolgt eine Gaszufuhr über ein Zufuhrrohr, dessen Mündung unterhalb der Rührachse des Rührorgans liegt. Auch können gegebenenfalls mehrere Zufuhrrohre unterhalb und/oder seitlich beabstandet vom Rührorgan vorgesehen sein. Über diese Rohre wird das Gas der Abströmung des Rührorgans der Rühranordnung zugeführt.EP 0 847 709 A1 discloses a stirring element which is used in particular as a gasification stirring element for stirring liquids. The liquids, a gas, for example air, fed. In this gassing stirrer, a gas supply via a feed pipe whose mouth is below the stirring axis of the stirrer takes place. Also, if appropriate, a plurality of supply pipes may be provided below and / or laterally spaced from the stirring element. The gas is supplied to the outflow of the stirring element of the stirring arrangement via these tubes.
EP 1 055 450 B1 zeigt ein Rührwerk, bei welchem eine Gaszufuhr über mitrotierende Verteilerelemente erfolgt. Bezüglich der vorangehend beschriebenen Rühranordnungen ist zu erkennen, dass man bei Rühranordnungen mit Fremdbegasung zwei Fälle unterscheiden kann.EP 1 055 450 B1 shows an agitator in which a gas is supplied via co-rotating distributor elements. With regard to the stirring arrangements described above, it can be seen that one can distinguish two cases in stirring arrangements with external gassing.
Eine Gaszufuhr kann über ortsfest installierte Einspeisungen erfolgen, wie beispielsweise über Rohre unterhalb des Rührorgans oder Rohrer seitliche neben dem Rührorgan oder einen ringförmigen Gasverteiler, eine sogenannte Ringbrause, die unterhalb des Rührorgans angeordnet ist. Eine solche Ringbrause hat über den Umfang verteilt mehrere Öffnungen, über die das dem Rührorgan zuzuführende Gas austreten kann.A gas supply can be done via stationary installed feeds, such as pipes below the stirrer or Rohrer side next to the stirrer or an annular gas distributor, a so-called ring shower, which is arranged below the agitator. Such a ring shower has distributed over the circumference a plurality of openings through which the agitator to be supplied gas can escape.
Eine Gaszufuhr kann auch über mitrotierende Verteilerelemente erfolgen, wie es bei dem Rührwerk der Fall ist, das in EP 1 055 450 B1 beschrieben ist. Bei diesem Rührwerk sind jedoch, sobald der das Rührorgan neben dem eigentlichen Begasen eine der eingangs genannten primären Aufgaben erfüllen muss, die rotierenden Verteilerelemente zur Begasung außerhalb vom eigentlichen Rührorgan angeordnet, so dass keine optimale Begasung mehr erfolgen kann.A gas supply can also take place via co-rotating distributor elements, as is the case with the agitator described in EP 1 055 450 B1. In this agitator, however, as soon as the agitator has to fulfill one of the primary tasks mentioned above in addition to the actual gassing, the rotating distributor elements for gassing are arranged outside of the actual agitator, so that optimal gassing can no longer take place.
Die an sich bekannten Ausführungsformen von Begasungseinrichtungen umfassen mehrere einzelne und gesonderte Bauteile, denen starre Halterungen zur Vermeidung von strömungsinduzierten Schwingungen zugeordnet werden müssen. Gegebenenfalls müssen aus Korrisionsgründen hochwertige Werkstoff, Duplex-Stähle, Alloys oder Titan eingesetzt werden. Insgesamt gesehen sind daher die bisherigen Begasungseinrichtungen komplex, umfassen mehrere Einzelteile und sind daher hinsichtlich der Konstruktion aufwändig und kostenintensiv.The per se known embodiments of gassing devices comprise a plurality of individual and separate components, which rigid mounts must be assigned to avoid flow-induced vibrations. If necessary, high-grade material, duplex steels, alloys or titanium must be used for reasons of corrosion. Overall, therefore, the previous gassing facilities are complex, include several items and therefore are complex in terms of construction and costly.
Die Erfindung zielt darauf ab, eine konstruktiv möglichst einfache Gaszufuhr zu dem Rührorgan einer Rühranordnung unter Erzielung einer nennenswerten Kostenersparnis bereitzustellen, und auch eine gezielte Gasabgabe in jeder beliebigen strömungsmechanisch gewünschten Stelle des Rührorgans bzw. der Rührblätter zu erreichen. Insbesondere soll eine optimale Dispergierung von Gas erreicht werden, ohne dass die Erfüllung einer primären Aufgabe der Rühranordnung beeinträchtigt wird.The invention aims to provide a structurally simple as possible gas supply to the stirring element of a stirring arrangement while achieving a significant cost savings, and also to achieve a targeted gas delivery in any desired fluidically desired location of the stirring element or the stirring blades. In particular, an optimal dispersion of Gas can be achieved without affecting the fulfillment of a primary task of the stirring arrangement.
Nach der Erfindung wird hierzu eine Rühranordnung mit einem sich drehenden Rührorgan zum Rühren von Flüssigkeiten, welches an einer Rührorgannabe angebrachte Rührblätter umfasst, und mit einer Begasungseinrichtung, welche ein Gas, wie Luft, zum Dispergieren mitteis des, Rührorgans zuführt, bereitgestellt; welches sich dadurch auszeichnet, dass die Begasungseinrichtung eine sich mit der Nabe des Rührorangs drehende Verteilerbüchse mit einem Innenraum zur Gasaufnahme umfasst, der mit mitrotierenden Auslassleitungen in kommunizierender Verbindung steht. Die Erfindung zeichnet sich dadurch aus, dass Auslassöffnungen der Auslassleitungen in unmittelbarer Nähe zu den Rührblättern und innerhalb des vom Rührorgan überstrichenen Volumens oder in den unmittelbaren Ausströmzonen angeordnet sind und das Gas an jeweils gewünschten Stellen mit der jeweils gewünschten Strömungsrichtung abgeben.According to the invention for this purpose, a stirring arrangement with a rotating stirrer for stirring liquids, which comprises attached to a Rührorgannabe stirring blades, and with a gassing device which supplies a gas, such as air, for dispersing mitteis of, stirring member provided; which is characterized in that the gassing comprises a with the hub of Rührorangs rotating distributor bushing with an interior for receiving gas, which communicates with co-rotating outlet lines in communicating connection. The invention is characterized in that outlet openings of the outlet ducts are arranged in the immediate vicinity of the stirring blades and within the volume swept by the stirring member or in the immediate outflow zones and deliver the gas at respectively desired locations with the respective desired flow direction.
Bei der erfindungsgemäßen Rühranordnung sind mitrotierende Auslassleitungen mit in unmittelbarer Nähe zu den Rührblättern angeordneten Auslassöffnungen vorgesehen, so dass sich deren Lagerung und Halterung vereinfacht. Diese Auslassleitungen gestatten ferner, dass das Gas an jeder beliebigen, strömungsmechanisch günstigen Stelle des Rührorgans bzw. des Rührblatts in gezielter Weise abgegeben werden kann. Über die mitrotierenden Auslassleitungen wird das Gas aus der Verteilerbüchse zu den jeweils gewünschten Auslassöffnungen geleitet. Durch die erfindungsgemäße Anordnung der Auslassöffnungen der Auslassleitung in unmittelbarer Nähe zu den Rührblättern und innerhalb des vom Rührorgan überstrichenen Volumens oder in den unmittelbaren Ausströmzonen wird insbesondere eine optimale Dispergierung von Gas erreicht, während gleichzeitig eine Störung der Erfüllung einer primären Aufgabe der Rühranordnung ausgeschlossen wird.In the stirring arrangement according to the invention, co-rotating outlet lines are provided with outlet openings arranged in the immediate vicinity of the stirring blades, so that their storage and mounting is simplified. These outlet lines also allow the gas to be discharged in a targeted manner at any location of the stirring element or the stirring blade that is favorable for flow mechanics. About the co-rotating outlet pipes, the gas is passed from the distribution box to the respective desired outlet openings. The arrangement according to the invention of the outlet openings of the outlet conduit in the immediate vicinity of the stirring blades and within the volume swept by the stirring member or in the immediate outflow zones achieves, in particular, optimum dispersion of gas, while at the same time precluding interference with the fulfillment of a primary task of the stirring arrangement.
Weiterhin umfasst die Begasungseinrichtung vorzugsweise eine stehende Zufuhrleitung, die abgedichtet in kommunizierender Verbindung mit dem Innen- räum der sich drehenden Verteilerbuchse steht. Es erfolgt eine Zufuhr der gasförmigen Komponente zum Rührorgan über eine einzige zentrale Zufuhrleitung, wodurch man eine wesentlich vereinfachte Konstruktion einer Rühranordnung umfassend ein Rührorgan und eine Begasungseinrichtung erhält. Die stehende zentrale Zufuhrleitung steht in abgedichteter Weise in kommunizierender Verbindung mit dem Innenraum einer zentralen und sich mit der Nabe des Rührorgans drehenden Verteilerbüchse.Furthermore, the gassing device preferably comprises a stationary supply line, which is sealed in communicating connection with the inner raum of the rotating distribution socket is. There is a supply of the gaseous component to the stirring element via a single central supply line, whereby one obtains a substantially simplified construction of a stirring arrangement comprising an agitation system and a gassing device. The stationary central supply line communicates in a sealed manner with the interior of a central distribution manifold rotating with the hub of the stirring element.
Bei der erfindungsgemäßen Auslegung der Rühranordnung hat man somit eine zentrale Gaszuleitung, welche dann mit mitrotierenden Einrichtungen, wie einer Verteilerbüchse, mit den ebenfalls mitrotierenden Auslassleitungen in kommunizierender Verbindung steht. Somit wird eine konstruktiv wesentlich vereinfachte Gaszufuhr bei einer derartigen Rühranordnung mit Begasungseinrichtung verwirklicht.In the design of the stirring arrangement according to the invention, there is thus a central gas supply line, which is then in communicating connection with co-rotating devices, such as a distribution box, with the likewise co-rotating outlet lines. Thus, a structurally much simplified gas supply is realized in such a stirring arrangement with gassing.
Um eine möglichst gedrängte Bauweise der Rühranordnung zu erreichen, ist die rotierende Verteilerbüchse koaxial und unterhalb der Rührorgannabe angeordnet. Hierdurch erhält man eine möglichst platzsparende Anordnung und Ausbildung eines sich drehenden Verteilerorgans.In order to achieve the most compact possible construction of the stirring arrangement, the rotating distribution box is arranged coaxially and below the Rührorgannabe. This provides a space-saving arrangement and training of a rotating distributor body.
Insbesondere liegen erfindungsgemäß die Gaszufuhrstellen, die von den Auslassöffnungen der Auslassleitungen gebildet werden, innerhalb des vom Rührorgan überstrichenen Volumens. Somit gestatten die Auslassleitungen bei der erfindungsgemäßen Rühranordnung eine freie Wahl der optimalen Stellen der Gasfreisetzung in unmittelbarer Nähe der Rührblätter. Sowohl die Ausströmrichtung des zugeleiteten Gases als auch die Ausströmstelle lassen sich in optimaler Weise auch unter Berücksichtigung der jeweiligen Bauform des Rührorgans wählen.In particular, according to the invention, the gas supply points, which are formed by the outlet openings of the outlet lines, are within the volume swept by the stirring element. Thus, in the stirring arrangement according to the invention, the outlet lines allow a free choice of the optimum points of gas release in the immediate vicinity of the stirring blades. Both the outflow direction of the supplied gas and the outflow point can be selected in an optimal manner, taking into account the respective design of the stirring element.
Die von der Verteilerbüchse abgehenden Auslassleitungen können gesondert zu den Rührblättern verlaufen und ihre Mündungsöffnungen bzw. Auslassöffnungen können über der Blatthöhenerstreckung oder dem Blattumfang liegen. Die Mündungsöffnungen bzw. Auslässe der Auslassleitungen können im Bereich der Rührorganblätter liegen, und es sind auch solche Auslegungsformen möglich, bei denen diese Mündungsöffnungen zwischen den Rührorganblättern liegen.The exhaust ducts exiting the manifold may be separate from the stirrer blades and their orifices may be above the blade height or perimeter. The mouth openings or outlets of the outlet lines may be in the area of the agitator blades, and such design forms are also possible in which these port openings lie between the agitator blades.
Gemäß einer alternativen Ausgestaltungsform können die Auslassleitungen in die Rührblätter des Rührorgans integriert sein.According to an alternative embodiment, the outlet lines can be integrated into the stirring blades of the stirring element.
Der Übergang von der stehenden Zufuhrleitung und der sich mit dem Rührorgan drehenden Verteilerbüchse, mit deren Innenraum die Auslassleitungen in kommunizierender Verbindung sind, sind derart zu gestalten, dass die Verlustmenge am Übergang von stehendem zu drehendem Teil möglichst gering ist und somit eine zuverlässige Abdichtung am Übergangsbereich erfolgt. Hierzu kann nach der Erfindung ein hydrostatischer Verschluss an diesem Übergangsbereich vorgesehen sein, oder es kann eine weitgehende verschleißfreie, axiale oder radiale Spaltanordnung vorgesehen sein, welche die gewünschte Abdichtung vornimmt.The transition from the stationary supply line and the distributor tube rotating with the stirring element, with the interior of which the outlet lines are in communicating connection, are to be designed such that the amount of loss at the transition from stationary to rotating part is as low as possible and thus a reliable seal at the transition region he follows. For this purpose, according to the invention, a hydrostatic closure may be provided at this transition region, or it may be provided a substantial wear-free, axial or radial gap arrangement, which carries out the desired sealing.
Zusammenfassend ist es bei der erfindungsgemäßen Rühranordnung wesentlich, dass man eine konstruktive vereinfachte Zuleitung zu dem Rührorgan mit möglichst wenigen Einzelteilen erhält. So wird bei der Erfindung eine einzig zentrale Gaszufuhr vorgesehen, welche feststehend ist, und die mit einer rotierenden Verteilerbüchse zusammenarbeitet, deren Innenraum einen Gasaufnahmeraum bildet. Von dieser zentralen, mitrotierenden Verteilerbüchse werden dann die Auslassleitungen, welche mitrotieren, gespeist, und diese mitrotierenden Auslassleitungen mit Auslassöffnungen in unmittelbarer Nähe zu den Rührblättern und innerhalb des vom Rührorgan überstrichenen Volumens oder in den unmittelbaren Ausströmzonen können dann zur Optimierung der Rühranordnung an den jeweils günstigsten Stellen das zugeleitete Gas abgeben und hierbei diesem abgegebenen Gasstrom auch eine gewünschte Strömungsrichtung erteilen, um die Reaktionsteilnahme des Gases zu verbessern. Die Erfindung wird nachstehend an Hand von bevorzugten Ausführungsformen unter Bezugnahme auf die beigefügte Zeichnung, die lediglich als Beispiel ohne beschränkenden Charakter dient, näher erläutert. In der Zeichnung zeigt:In summary, it is essential in the stirring arrangement according to the invention that one obtains a simplified structural supply line to the stirring element with as few individual parts. Thus, in the invention, a single central gas supply is provided, which is fixed, and which cooperates with a rotating distribution box whose interior forms a gas receiving space. From this central, co-rotating manifold then the outlet pipes which co-rotate, fed, and these co-rotating outlet with outlet ports in close proximity to the stirring blades and within swept by the stirring or volume in the immediate Ausströmzonen can then optimize the stirring assembly to the respective best Make the supply gas and give this emitted gas stream also a desired flow direction to improve the reaction participation of the gas. The invention will be explained below with reference to preferred embodiments with reference to the accompanying drawings, which serves only as an example without limiting character. In the drawing shows:
Fig. 1 eine schematische Seitenansicht einer Rühranordnung mit einem Rührorgan und einer Begasungseinrichtung nach der Erfindung; undFigure 1 is a schematic side view of a stirring arrangement with a stirrer and a gassing device according to the invention. and
Fig. 2 eine schematische Seitenansicht einer Rühranordnung mit einem Rührorgan und einer Begasungseinrichtung gemäß einer Ausfüh- rungsvariante nach der Erfindung.2 shows a schematic side view of a stirring arrangement with a stirring element and a gassing device according to an embodiment variant according to the invention.
In den Figuren der Zeichnung sind gleiche oder ähnliche Teile mit den gleichen Bezugszeichen versehen.In the figures of the drawing, the same or similar parts are provided with the same reference numerals.
In Figur 1 ist eine erste Ausführungsform einer insgesamt mit 1 bezeichneten Rühranordnung gezeigt. Diese Rühranordnung 1 weist ein sich drehendes Rührorgan 2 auf, welches zum Rühren von Flüssigkeiten bestimmt ist. Das Rührorgan 2 umfasst eine Rührorgannabe 3, an welcher Rührblätter 4 angebracht sind. Die Rührblätter 4 können irgendeine beliebige gewünschte Gestalt und Auslegung haben.FIG. 1 shows a first embodiment of a stirring arrangement, designated overall by 1. This stirring arrangement 1 has a rotating stirring element 2, which is intended for stirring liquids. The stirring element 2 comprises a stirring or supply hub 3, to which stirring blades 4 are attached. The stirring blades 4 may be of any desired shape and design.
Ferner umfasst die Rühranordnung 1 eine insgesamt mit 5 bezeichnete Begasungseinrichtung, welche ein Gas, wie Luft, zum Dispergieren mittels des Rührorgans 2 diesem zuführt. Die Begasungseinrichtung 5 umfasst eine sich mit der Rührorgannabe 3 des Rührorgans 2 drehende Verteilerbüchse 6. Diese Verteilerbüchse 6 umschließt einen Innenraum, welcher zur Gasaufnahme dient. Die Verteilerbüchse 6 bzw. der Innenraum derselben steht in kommunizierender Verbindung mit mitrotierenden Auslassleitungen 7, welche das Gas an jeweils gewünschten Stellen mit einer jeweils gewünschten Strömungsrichtung ausgeben. Ferner umfasst die Begasungseinrichtung 5 eine stehende Zufuhrleitung 8, welche abgedichtet in kommunizierender Verbindung mit dem Innenraum der sich drehenden Verteilerbüchse 6 steht. Bei diesem in Figur 1 gezeigten Aus- führungsbeispiel sind die mitrotierenden Auslassleitungen 7 gesondert zu den Rührblättern 4 ausgebildet.Furthermore, the stirring arrangement 1 comprises a gassing device, generally designated 5, which supplies a gas, such as air, for dispersing by means of the stirring element 2. The gassing device 5 comprises a distributor bushing 6 which rotates with the agitator intake hub 3 of the agitation system 2. This distributor bushing 6 encloses an interior which serves for receiving gas. The distributor bushing 6 or the interior thereof is in communicating connection with co-rotating outlet lines 7, which discharge the gas at respectively desired locations with a respective desired flow direction. Furthermore, the gassing device 5 comprises a stationary supply line 8 which is sealed in communicating connection with the interior of the rotating distribution box 6. In this embodiment shown in FIG. Guiding example, the co-rotating outlet lines 7 are formed separately to the stirring blades 4.
Bei der in Figur 1 gezeigten Rühranordnung ist eine einzige, zentrale, stehende Zufuhrleitung 8 für ein zuzuführendes Gas vorgesehen. Die Verteilerbüchse 6 ist koaxial und unterhalb der Rührorgannabe 3 angeordnet, welche den Innenraum zur Gasaufnahme hat. Die stehende bzw. feststehende Zufuhrleitung 8 und die sich drehende Verteilerbüchse 6 sind miteinander in abgedichteter Weise kommunizierend in Verbindung. Die Ausführung ist hierbei derart gewählt, dass die Verlustmenge an der Abdichtung des Übergangs von stehender Zufuhrleitung 8 und rotierender Verteilerbuchse 6 möglichst gering ist. Hierzu kann ein hydrostatischer Verschluss an diesem Übergangsbereich vorgesehen sein, oder die dichte Verbindung von feststehender Zufuhrleitung 8 und sich drehender Verteilerbüchse 6 erfolgt mittels einer verschleißfreien, axialen oder radialen Spaltanordnung.In the stirring arrangement shown in Figure 1, a single, central, stationary supply line 8 is provided for a gas to be supplied. The distribution box 6 is arranged coaxially and below the Rührorgannabe 3, which has the interior for gas absorption. The stationary supply line 8 and the rotating distribution box 6 communicate with each other in a sealed manner in communication. The design is chosen such that the amount of loss at the seal of the transition from stationary supply line 8 and rotating distributor bushing 6 is as small as possible. For this purpose, a hydrostatic closure can be provided at this transition region, or the tight connection of fixed supply line 8 and rotating distribution sleeve 6 by means of a wear-free, axial or radial gap arrangement.
Das über die feststehende Zufuhrleitung 8 dem Innenraum der sich drehenden Verteilerbüchse 6 eingeleitete Gas wird bei der erfindungsgemäßen Auslegung der Rühranordnung 1 über die mitrotierenden Auslassleitungen 7 der Begasungseinrichtung 5 an einer jeweils gewünschten, geeigneten Stelle freigesetzt, wobei die Zufuhrstellen innerhalb des vom Rührorgan 2 überstrichenen Volumens liegen. Auch kann das Gas an den Mündungsöffnungen der mitrotierenden Auslassleitungen 7 mit einer jeweils gewünschten Strömungsrichtung ausgeleitet und abgegeben werden. Diese Mündungsöffnungen der Auslassleitungen 7 können im Bereich der Rührblätter 4 liegen, oder sie können auch zwischen diesen angeordnet sein. Sie sind jedoch immer in unmittelbarer Nähe zu den Rührblättern und innerhalb des vom Rührorgan überstrichenen Volumens angeordnet. Diese Mündungsöffnungen der Auslassleitungen 7 können auch über oder unter der Höhenerstreckung der Rührblätter 4 liegen. In Abhängigkeit von dem jeweiligen Typ des Rührorgans 2 lassen sich in optimaler Weise die günstigsten Stellen für die Auslassöffnungen der Auslassleitungen 7 und den günstigsten Austrittsrichtungen wählen. Durch die kompakte Auslegung der Be- gasungseinrichtung 5 lassen sich insbesondere Montagekosten und/oder Materialkosten einsparen und reduzieren. Da femer die Auslassleitungen 7 mitrotieren, können die starren Halterungen für die Auslassleitungen zur Vermeidung von strömungsind uzierten Schwingen ersatzlos entfallen.The gas introduced via the fixed feed line 8 into the interior of the rotating distributor bushing 6 is released in a design of the stirring arrangement 1 via the co-rotating outlet lines 7 of the gassing device 5 at a respectively desired, suitable location, the feed points within the volume swept by the stirring element 2 lie. Also, the gas can be discharged and discharged at the mouth openings of the co-rotating outlet lines 7 with a respective desired flow direction. These mouth openings of the outlet lines 7 may be in the region of the stirring blades 4, or they may also be arranged between them. However, they are always arranged in the immediate vicinity of the stirring blades and within the volume swept by the stirring element. These mouth openings of the outlet lines 7 can also be above or below the vertical extent of the stirring blades 4. Depending on the particular type of stirring element 2, the most favorable locations for the outlet openings of the outlet lines 7 and the most favorable outlet directions can be optimally selected. Due to the compact design of the Gasing device 5 can save in particular assembly costs and / or material costs and reduce. Furthermore, since the outlet lines 7 rotate with one another, the rigid holders for the outlet lines can be omitted without replacement in order to avoid flow-induced oscillations.
Die erfindungsgemäße Rühranordnung 1 ist aufgrund ihrer erfindungsgemäßen Ausgestaltung relativ kostengünstig und mit weitgehend reduziertem Konstruktionsaufwand verbunden. Das Rührorgan 2 der erfindungsgemäßen Rühranordnung 1 kann daher auf äußerst effiziente Weise das zugeführte Gas fein zerteilen, so dass sich optimale Reaktionsverhältnisse von Gas und Flüssigkeit in einem Reaktor realisieren lassen.The stirring assembly 1 according to the invention is due to their inventive design relatively inexpensive and associated with much reduced design effort. The stirrer 2 of the stirrer assembly 1 according to the invention can therefore finely divided the supplied gas in a very efficient manner, so that optimum reaction conditions of gas and liquid can be realized in a reactor.
Figur 2 zeigt Beispiele für Alternativen der Ausgestaltungsformen der Auslassleitungen 7 sowie der Ausrichtungen und der Anordnungen der Mündungsöffnungen derselben. Auch ist dort ein Beispiel angedeutet, bei dem die Auslassleitung 7 in das zugeordnete Rührblatt 4 integriert ist. Alle weiteren Einzelheiten der Rühranordnung 1' nach Figur 2 stimmen mit den Einzelheiten der Rühranordnung 1 nach Figur 1 überein. Eine nähere Erläuterung erübrigt sich daher.Figure 2 shows examples of alternatives of the embodiments of the outlet ducts 7 as well as the orientations and the arrangements of the mouth openings thereof. Also, there is an example indicated in which the outlet 7 is integrated into the associated stirring blade 4. All further details of the stirring arrangement 1 'according to FIG. 2 correspond to the details of the stirring arrangement 1 according to FIG. A more detailed explanation is therefore unnecessary.
Die Erfindung ist nicht auf die Einzelheiten der dargestellten Ausführungsformen beschränkt, sondern es sind zahlreiche Abänderungen und Modifikationen möglich, die der Fachmann im Bedarfsfall treffen wird, ohne den Erfindungsgedanken zu verlassen. So sind beispielsweise auch Kombinationen der Ausführungsformen von Auslassleitungen 7 möglich, die teilweise in die Rührblätter 4 integriert sind, aber auch teilweise gesondert zu diesen verlaufen. Auch können die Mündungsöffnungen der mitrotierenden Auslassieitungen 7 dann abwechselnd in unterschiedlichen Stellen bezogen auf das Rührorgan 2 angeordnet sein, und die Mündungsöffnungen selbst können auch unterschiedlich gestaltet sein, um dem austretenden Gasstrom eine jeweils gewünschte Strömυngsrich- tungskomponente zu erteilen. Erfindungsgemäß sollen diese Mündungs- bzw. Auslassöffnungen jedoch in unmittelbarer Nähe zu den Rührblättern und innerhalb des vom Rührorgan überstrichenen Volumens liegen. The invention is not limited to the details of the illustrated embodiments, but numerous modifications and modifications are possible, which will be made by those skilled in the art, if necessary, without departing from the spirit. Thus, for example, combinations of the embodiments of outlet ducts 7 are possible, which are partially integrated in the agitating blades 4, but also partly run separately from them. Also, the mouth openings of the co-rotating Auslassieitungen 7 can then be arranged alternately in different positions with respect to the stirring member 2, and the mouth openings themselves can also be designed differently in order to issue the emerging gas flow each desired Strömυngsrich- tion component. According to the invention, however, these mouth or outlet openings should be in the immediate vicinity of the stirring blades and within the volume swept by the stirring element.

Claims

Patentansprüche claims
1. Rühranordnυng mit einem sich drehenden Rührorgan (2) zum Rühren von Flüssigkeiten, welches an einer Rührorgannabe (3) angebrachte Rührblätter (4) umfasst, und mit einer Begasungseinrichtung (5), welche ein Gas, wie Luft, zum Dispergieren mittels des Rührorgans zuführt, wobei die Begasungseinrichtung eine sich mit der Nabe (3) des Rührorgans (2) drehende Verteilerbüchse (6) mit einem Innenraum zur Gasaufnahme umfasst, der mit mitrotierenden Auslassleitungen (7) in kommunizierender Verbindung steht, dadurch gekennzeichnet, dass Auslassöffnungen der Auslassleitungen (7) in unmittelbarer Nähe zu den Rührblättern (4) und innerhalb des vom Rührorgan (2) überstrichenen Volumens oder in den unmittelbaren Ausströmzonen angeordnet sind und das Gas an jeweils gewünschten Stellen mit der jeweils gewünschten Strömungsrichtung abgeben.1. stirring arrangement with a rotating stirrer (2) for stirring liquids, which comprises at a Rührorgannabe (3) mounted stirring blades (4), and with a gassing (5), which a gas, such as air, for dispersing by means of the stirring element wherein the gassing device comprises a distributor bush (6) rotating with the hub (3) of the agitator (2) and having an interior for receiving gas, which is in communicating connection with co-rotating outlet lines (7), characterized in that outlet openings of the outlet lines ( 7) are arranged in the immediate vicinity of the stirring blades (4) and within the volume swept by the stirring element (2) or in the immediate outflow zones and deliver the gas at respectively desired locations with the respective desired flow direction.
2. Rühranordnung nach Anspruch 1 , dadurch gekennzeichnet, dass die Begasungseinrichtung (5) eine stehende Zufuhrleitung umfasst, die abgedichtet in kommunizierender Verbindung mit dem Innenraum der sich drehenden Verteilerbüchse (6) steht.2. stirrer assembly according to claim 1, characterized in that the gassing device (5) comprises a stationary supply line which is sealed in communicating connection with the interior of the rotating distribution box (6).
3. Rühranordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die rotierende Verteilerbüchse (6) koaxial und unterhalb der Rührorgannabe (3) angeordnet ist.3. stirring arrangement according to claim 1 or 2, characterized in that the rotating distributor bush (6) is arranged coaxially and below the Rührorgannabe (3).
4. Rühranordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Auslassleitungen (7) gesondert zu den Rührblättern (4) verlaufen. 4. Stirring arrangement according to one of claims 1 to 3, characterized in that the outlet ducts (7) extend separately from the stirring blades (4).
5. Rühranordnung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Auslassleitungen (7) in die Rührblätter (4) integriert sind.5. Stirring arrangement according to one of claims 1 to 3, characterized in that the outlet pipes (7) are integrated in the stirring blades (4).
6. Rühranordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die dichte Verbindung von feststehender Zufuhrleitung (8) und sich drehender Verteilerbüchse (6) mittels eines hydrostatischen Verschlusses erfolgt.6. Stirring arrangement according to one of claims 1 to 5, characterized in that the tight connection of fixed supply line (8) and rotating distribution box (6) by means of a hydrostatic closure takes place.
7. Rühranordnung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die dichte Verbindung von feststehender Zufuhrleitung (8) und sich drehender Verteilerbüchse (6) mittels einer verschleissfreien, axialen oder radialen Spaltanordnung erfolgt. 7. Stirring arrangement according to one of claims 1 to 5, characterized in that the tight connection of fixed supply line (8) and rotating distributor bush (6) by means of a wear-free, axial or radial gap arrangement takes place.
EP10734666.0A 2009-06-08 2010-06-07 Stirring device Active EP2440315B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009024176 2009-06-08
DE102010004206A DE102010004206A1 (en) 2009-06-08 2010-01-08 Rühranrodnung
PCT/EP2010/003410 WO2010142406A1 (en) 2009-06-08 2010-06-07 Stirring device

Publications (2)

Publication Number Publication Date
EP2440315A1 true EP2440315A1 (en) 2012-04-18
EP2440315B1 EP2440315B1 (en) 2014-03-05

Family

ID=43049432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10734666.0A Active EP2440315B1 (en) 2009-06-08 2010-06-07 Stirring device

Country Status (12)

Country Link
US (1) US8894047B2 (en)
EP (1) EP2440315B1 (en)
JP (1) JP2012529363A (en)
KR (1) KR20120012977A (en)
AU (1) AU2010257782B2 (en)
BR (1) BRPI1010845A2 (en)
CA (1) CA2764466C (en)
CL (1) CL2011003088A1 (en)
DE (1) DE102010004206A1 (en)
ES (1) ES2458923T3 (en)
RU (1) RU2542258C2 (en)
WO (1) WO2010142406A1 (en)

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1073878A (en) * 1912-01-20 1913-09-23 Walter E Trent Agitating and mixing apparatus.
US1180170A (en) * 1914-06-13 1916-04-18 William James Rolfe Rotary lawn-sprinkler.
US1214113A (en) * 1916-03-08 1917-01-30 James A Anderson Tank for treating garbage.
NL20637C (en) * 1925-12-26
US2288063A (en) * 1940-10-28 1942-06-30 Jr George W Ashlock Drink mixing device
US2559518A (en) * 1948-03-26 1951-07-03 Standard Oil Dev Co Recirculating tank mixing system
US2652228A (en) * 1950-01-11 1953-09-15 Carrier Corp Bearing construction
US2592904A (en) * 1950-04-10 1952-04-15 Chiksan Co Hydraulic agitator
US2983452A (en) * 1958-06-12 1961-05-09 Virgual T Lindbloom Rotary sprayer
DE1083771B (en) * 1958-08-08 1960-06-23 Hefefabrik Weingarten G M B H Device for intensive aeration and gassing of liquids
US3227547A (en) * 1961-11-24 1966-01-04 Union Carbide Corp Degassing molten metals
JPS52108370A (en) * 1976-03-10 1977-09-10 Tatsuya Arai Apparatus of gassliquid contact reaction without gas compresser
FR2402472A1 (en) * 1977-09-13 1979-04-06 Alsthom Atlantique APPARATUS FOR HOLDING SOLID PRODUCTS IN SUSPENSION AND METHOD OF USE
US4184775A (en) * 1977-10-05 1980-01-22 Nobuo Akizawa Apparatus for washing cereals
NL7803906A (en) 1978-04-12 1979-10-16 Noordvos Schroeven Bv METHOD, DEVICE AND PROPELLER FOR DISTRIBUTING A GAS, POWDER OR LIQUID MATERIAL IN A LIQUID.
JPS5541802A (en) * 1978-09-18 1980-03-24 Hitachi Ltd Rotary atomizer
JPS5541836A (en) * 1978-09-20 1980-03-24 Hitachi Ltd Liquid gas contact equipment having agitator blade
CH645280A5 (en) 1979-06-01 1984-09-28 Chemap Ag DEVICE FOR GASING A LIQUID.
US4688945A (en) * 1985-10-02 1987-08-25 Stranco, Inc. Mixing apparatus
FI885526A (en) * 1988-11-29 1990-05-30 Outokumpu Oy REAKTOR FOER BEHANDLING AV ORGANISKT AVFALL.
JP2706322B2 (en) * 1989-07-17 1998-01-28 三菱重工業株式会社 Gas-liquid contact device
US5061080A (en) * 1990-11-21 1991-10-29 Roberts Filter Manufacturing Company Rotary agitator
DE9201820U1 (en) 1992-02-13 1992-04-09 Kirschenmann, Guenter, Dipl.-Ing., 7507 Pfinztal Gassing agitator
FI94317C (en) 1992-10-16 1995-08-25 Outokumpu Mintec Oy Methods and apparatus for dispersing gas in liquid
US5342429A (en) * 1993-05-05 1994-08-30 Aluminum Company Of America Purification of molten aluminum using upper and lower impellers
US5427456A (en) * 1994-04-12 1995-06-27 Synektron Corporation Fluid bearing with asymmetrical groove pattern
US5616304A (en) * 1995-04-21 1997-04-01 Innovative Biosystems, Inc. Slurry reactor
US5620250A (en) * 1996-03-05 1997-04-15 Pro-Quip, Inc. Jet mixer having a self-centering liquid bearing hub arrangement
RU2107618C1 (en) * 1996-04-22 1998-03-27 Мордовский государственный университет им.Н.П.Огарева Mixer
DE29621503U1 (en) 1996-12-11 1997-03-06 Kordeuter, Franz, 88213 Ravensburg Fan-like parasol
DE29621683U1 (en) * 1996-12-13 1997-02-13 Ekato Ruehr Mischtechnik Stirrer
US6346412B1 (en) * 1997-09-03 2002-02-12 Newbio, Inc. Microbial remediation reactor and process
DE29909312U1 (en) 1999-05-27 1999-08-12 Ekato Rühr- und Mischtechnik GmbH, 79650 Schopfheim Agitator
TW393572B (en) * 1999-11-30 2000-06-11 Taidoc Technology Co Ltd Fast clinical thermometer and its forecast method
JP2002102668A (en) * 2000-10-02 2002-04-09 Kankyo Soken Kk Apparatus for treating unused organic substance
JP2004176640A (en) * 2002-11-27 2004-06-24 Kumamoto Technology & Industry Foundation Fluid sucking and mixing device
DE20307199U1 (en) 2003-05-08 2003-07-10 Ekato Rühr- und Mischtechnik GmbH, 79650 Schopfheim stirrer
DE102005017327B4 (en) 2005-04-14 2007-08-30 EKATO Rühr- und Mischtechnik GmbH processing plant
JP2007237153A (en) * 2006-03-06 2007-09-20 Npo Machinami Ikuseikai Air mixing and agitation technology
DE202006007423U1 (en) 2006-05-09 2007-09-13 EKATO Rühr- und Mischtechnik GmbH stirrer
DE102007001711A1 (en) 2007-01-11 2008-07-17 EKATO Rühr- und Mischtechnik GmbH Stirring arrangement with a stirrer and a gassing device
CN101190403B (en) * 2007-04-27 2010-09-15 方民 High-efficiency fluid mixed stirring leaf blade unit
KR101157719B1 (en) * 2007-05-22 2012-06-20 가부시끼가이샤 도시바 Device and method for producing micro gas bubbles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010142406A1 *

Also Published As

Publication number Publication date
AU2010257782A1 (en) 2011-12-15
ES2458923T3 (en) 2014-05-07
RU2011153766A (en) 2013-07-20
JP2012529363A (en) 2012-11-22
US20120069694A1 (en) 2012-03-22
DE102010004206A1 (en) 2010-12-09
RU2542258C2 (en) 2015-02-20
CL2011003088A1 (en) 2012-05-18
AU2010257782B2 (en) 2014-01-09
CA2764466A1 (en) 2010-12-16
KR20120012977A (en) 2012-02-13
US8894047B2 (en) 2014-11-25
BRPI1010845A2 (en) 2016-04-05
EP2440315B1 (en) 2014-03-05
CA2764466C (en) 2014-03-11
WO2010142406A1 (en) 2010-12-16

Similar Documents

Publication Publication Date Title
EP1055450A2 (en) Agitator
EP2358466B1 (en) Stirrer for a bioreactor
DE102006021984B4 (en) bioreactor
EP2084260A1 (en) Method and device for aeration, particularly for microbiological fermentation and for cell cultivation
DE3873694T2 (en) HEAT EXCHANGE DEVICE.
DE3347064A1 (en) DEVICE FOR MECHANICAL CLEANING OF A COOLING WATER FLOW
EP2101899A2 (en) Stirring assembly comprising a stirring element and a gassing device
WO2020114907A1 (en) Hyperboloid agitator for circulating liquids, and agitating and gassing device
CH290287A (en) Process for mixing gases with liquids and equipment for carrying out this process.
DE69001388T2 (en) Stirrer for aseptic use.
DE102006022651B3 (en) Container used as a disposable bio-reactor comprises a mixer made from parts of an inflatable structure formed as a mixer guiding structure and held in position by the guiding structure
DE102009056967B4 (en) mixing device
CH645817A5 (en) BLADED ROTOR FOR MOVING LIQUID MEDIUM.
EP2440315B1 (en) Stirring device
DE3878834T2 (en) TUBE BUNDLE FOR HEAT EXCHANGER.
DE10024539A1 (en) Burst protection system for pipelines carrying spontaneously exothermic reactive fluids has a burst protector supported in the fluid flow area and an emergency connection to atmosphere
DE2554664A1 (en) Agitator for dispersing gas into liquid systems - having a hollow shaft and gas passages in the agitator elements
DE102005055314B3 (en) Assembly to form a nano-dispersion by intensive admixture within chilled chamber
DE2518315A1 (en) VENTILATION TURBINE FOR GAS-LIQUID REACTORS
DE202005002442U1 (en) Blow through sluice has housing with chambers formed between inside and outside walls and extending between supply pipe and blow-through duct to surround these at least in part to prevent temperature distortions
DE102005010753A1 (en) Bearing arrangement for chemical or pharmaceutical mixer assembly has threaded attachment ring to mixer paddle wheel
EP1091041B1 (en) Flotation apparatus for removing contaminants, especially printing inks, from a fibrous suspension
DE4033786C2 (en) Arrangement for nozzles in flue gas cleaning systems
DE202004013715U1 (en) Drive mechanism for a stirrer for chemicals/pharmaceuticals, to stir and mix fluids by an induction drive to suspended magnetic bodies, has a propeller blade unit with an outer body which can also be cleaned/sterilized in place
EP0517178B1 (en) Conical driver or mixer with swivel arm drive and sealing device

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

17P Request for examination filed

Effective date: 20111114

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20120925

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: B01F 7/00 20060101ALI20130912BHEP

Ipc: B01F 3/04 20060101AFI20130912BHEP

Ipc: B01F 15/00 20060101ALI20130912BHEP

INTG Intention to grant announced

Effective date: 20131001

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 654455

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140315

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: EKATO RUEHR- UND MISCHTECHNIK GMBH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010006280

Country of ref document: DE

Effective date: 20140410

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2458923

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20140507

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20140305

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

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140605

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502010006280

Country of ref document: DE

Representative=s name: DAUB, THOMAS, DIPL.-ING., DE

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

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140605

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140705

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

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010006280

Country of ref document: DE

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

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140707

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140607

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20141208

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010006280

Country of ref document: DE

Effective date: 20141208

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

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

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140630

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140607

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

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

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140606

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20100607

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140630

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

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

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

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

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140305

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502010006280

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B01F0003040000

Ipc: B01F0023200000

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522

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

Ref country code: ES

Payment date: 20230719

Year of fee payment: 14

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

Ref country code: GB

Payment date: 20240620

Year of fee payment: 15

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

Ref country code: DE

Payment date: 20240617

Year of fee payment: 15

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

Ref country code: AT

Payment date: 20240617

Year of fee payment: 15

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

Ref country code: FR

Payment date: 20240621

Year of fee payment: 15

Ref country code: FI

Payment date: 20240618

Year of fee payment: 15

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

Ref country code: SE

Payment date: 20240620

Year of fee payment: 15