EP2539061B1 - Mixer - Google Patents

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Publication number
EP2539061B1
EP2539061B1 EP11717927.5A EP11717927A EP2539061B1 EP 2539061 B1 EP2539061 B1 EP 2539061B1 EP 11717927 A EP11717927 A EP 11717927A EP 2539061 B1 EP2539061 B1 EP 2539061B1
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EP
European Patent Office
Prior art keywords
mixer
container
shaft
drive motor
drive unit
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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.)
Not-in-force
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EP11717927.5A
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German (de)
French (fr)
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EP2539061A1 (en
Inventor
Hanspeter Tschamber
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Individual
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/11Stirrers characterised by the configuration of the stirrers
    • B01F27/112Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
    • B01F27/1125Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades with vanes or blades extending parallel or oblique to the stirrer axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or armsĀ 
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10Maintenance of mixers
    • B01F35/145Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B01F35/146Working under sterile conditions; Sterilizing the mixer or parts thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/40Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/411Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft
    • B01F35/4111Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting only one extremity of the shaft at the top of the receptacle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/22Mixing of ingredients for pharmaceutical or medical compositions

Definitions

  • the invention relates to a stirrer with a rotatable agitator shaft in a container, are arranged on the stirrers, and with a located outside of the container drive unit for the agitator shaft.
  • agitators are eg off US 2007/0053238 and DE 202009006840 U known.
  • the agitator shaft led out of the container is connected to the drive shaft of a separately constructed drive unit, which consists of the actual drive motor and a gear which reduces the speed of the drive motor to the speed required for the agitator.
  • a separately constructed drive unit which consists of the actual drive motor and a gear which reduces the speed of the drive motor to the speed required for the agitator.
  • Junctions between units are always vulnerable to dirt and impurities, they are usually difficult to access and thus difficult to clean and even more difficult to keep sterile.
  • a source of contamination forms e.g. also the transmission oil required for a transmission;
  • the cooling fins of an engine are prone to sedimentation.
  • the object of the invention is to provide such an agitator with a drive unit and connect, that places that are avoided for deposits and impurities and, where possible, their sources and the agitator as a whole, including its drive unit, high requirements Sterility, as they are, for example, but not only made in the pharmaceutical industry, meet the necessary maintenance and cleaning work to make the sterility easier to carry out and less frequent.
  • the drive unit is to be scaled down and optimized for sterilization.
  • the agitator shaft is led out of the agitator tank;
  • the drive unit is mounted on the protruding from the agitator tank part of the agitator shaft and fixedly connected to the pierced by the agitator shaft container wall;
  • the bearings of the agitator shaft and the seal of the interior of the agitator vessel in the region of the implementation of the agitator shaft are integrated through the container wall in the drive unit.
  • the agitator shaft is therefore also the drive shaft of the drive unit and can e.g. also be integrally formed with her.
  • the drive unit has a drive motor which is mounted on the part of the agitator shaft led out of the agitator vessel and held between a lower and an upper bearing flange and is fixedly connected to the container wall.
  • bearings of the agitator shaft are arranged directly above and below the drive motor in bearing flanges in recesses provided for this, these bearings are integrated into the drive unit, which contributes to a compact, space-saving design and whereby a good storage of the agitator shaft is achieved.
  • the agitator preferably has gas-tight power supply lines to the drive motor.
  • a first bearing of the agitator shaft is directly below the drive motor and a second bearing is also arranged below the drive motor at the optimized distance from the first bearing, and a split pot is arranged between the rotor and stator, through which the agitator container is hermetically sealed.
  • the containment shell may consist of a fiber-reinforced plastic or high-alloyed stainless steel.
  • the drive motor is a torque motor; while the rotor carrying the permanent magnets can be fixedly connected to the part of the agitator shaft protruding from the agitator vessel via a bush by a shrink disk or a clamping ring, and its stator carrying the windings can be held between the bearing flanges.
  • a torque motor is a gearless direct drive with high torque and relatively low speeds and is ideally suited for precise direct drives, its speed can be easily adjusted to a desired or required speed easily. Since there is no gear, no gear oil is needed and so excluded a source of pollution. He also meets a small, space-saving design.
  • the drive or torque motor may be enclosed by a cylindrical housing which is fixedly connected to the bearing flanges and whose outer surface is flush with the outer surfaces of the bearing flanges.
  • annular adapter plate surrounding the agitator shaft leading out of the agitator vessel can be fixedly connected to the container, preferably by screwing.
  • the upper bearing flange, the housing of the drive motor and the lower bearing flange can be firmly connected by means of screws passing through them with the adapter plate. If the outer surfaces of the bearing flanges, the housing and the adapter plate are aligned with each other, a closed, interrupted only by sealing rings outer surface can be formed, with which sterility can be easily produced.
  • a mounting plate may be disposed between the adapter plate and the lower bearing flange, which is fixedly connected by the screws to the lower bearing flange and the adapter plate and whose outer surface is aligned with the outer surfaces of the adapter plate, the lower and upper bearing flange and the housing, so that Together they form a closed, interrupted only by sealing rings outer surface.
  • the adapter plate is sealed against the container wall and against the mounting plate or the lower bearing flange by seals and the mounting plate or the lower bearing flange is sealed against the agitator shaft.
  • the sealing of the interior of the agitator tank is integrated into the drive unit.
  • the drive unit can be sealed upwards by a cover, and with this cover, a supply unit can be connected, which thus forms a structural unit with the drive unit and has supply lines for gaseous and / or liquid media.
  • the feeder unit is included in the compact, space-saving overall construction.
  • the feed unit can be a rotary feedthrough.
  • Fig. 1 shows an inventive agitator with the agitator 1, the rotatable agitator shaft 2, which alternately wears blades in a plurality of planes 3 and 4 gassing.
  • One of the number of gassing elements 4 corresponding number of bushings 5 in the agitator shaft 2 lead from above to the gassing elements 4; Gaseous and / or liquid media are thus introduced from above through the passages 5 and via the gassing elements 4 into the container 1.
  • the agitator shaft 2 may also be a hollow shaft, from the cavity then branches lead to the gassing elements 4. For a uniform fumigation in the entire agitator 1 but an individual gas supply to the gassing 4 in the different levels of advantage.
  • the agitator 1 is in the illustrated embodiment, initially above and preferably open over its entire diameter and is sealed by a container lid 6, whose diameter is then equal to the diameter of the agitator tank 1; In any case, to be closed by the container lid 6 opening of the agitator tank 1 should be large enough so that the agitator shaft 2 can be introduced together with the already mounted on her agitator blades 3 and gassing elements 4 during assembly through this opening.
  • the agitator shaft 2 is led out through the container lid 6, which forms part of the container wall, and the drive unit or the drive motor 9 of the agitator is mounted directly on the part of the agitator shaft 2 protruding from the agitator vessel 1 and screwed to the container lid 6 by screw connections 8 connected.
  • Agitator shaft 2 and drive shaft of the drive motor 9 of the drive unit are thus formed as a one-piece component.
  • Concentrically arranged above the drive unit or the drive motor 9 is the supply unit 7 for gaseous and / or liquid media, which likewise encloses the outgoing agitator and drive shaft 2 and is preferably firmly connected to the drive unit or the drive motor 9.
  • the drive motor 9 is advantageously a torque motor 9. This has the advantage that it can be used as a gearless direct drive. It can be down-regulated to a favorable for a stirrer, low speed and has a desired, high torque. Since a gearbox is not available, no gear oil is needed, which could be a source of contamination or impurities.
  • rotor 10 of the torque motor 9 is supported by a bushing 11 by means of a Shrink disc 12 or alternatively by means of a clamping ring (not shown) with the agitator shaft 2, which is also the drive shaft of the torque motor 9, connected.
  • the stator 13 carrying the windings of the torque motor 9 is held between bearing flanges 14, 14 ', which are sealed against the agitator shaft 2 brought out of the container 1.
  • the drive or torque motor 9 is enclosed by a cylindrical housing 15 which rests sealed on the lower bearing flange 14. On the housing 15 in turn is also sealed the upper bearing flange 14 'on.
  • the bearings 22 of the agitator shaft 2, preferably deep groove ball bearings, are also integrated according to the invention in the drive unit 9, are outside of the agitator 1 and are immediately above and below the drive or torque motor 9 in designated recesses 23 of the bearing flanges 14, 14th 'arranged and sealed.
  • a containment shell may preferably consist of fiber-reinforced plastic or high-alloyed stainless steel.
  • the power supply of the drive motor via gas-tight power supply lines.
  • a rotary feedthrough 24 forming the feed unit 7 is mounted on the cover 20 terminating the drive unit or the drive motor 9 and consisting of a plurality of superimposed assembly disks 25 surrounding the agitator shaft 2, which seals against each other and against the agitator shaft 2 are and have in the passages 5 of the agitator shaft 1 opening leads 26 for the introduced into the agitator 1 gaseous and / or liquid medium.
  • the passages 5 through the agitator shaft 2 are closed at the upper ends by plugs 27.
  • a cover 28 closes the rotary leadthrough 24 altogether tightly upwards.
  • the medium to be introduced is introduced through the feed unit 7 and through the drive unit or the drive motor 9 into the agitator vessel 1.
  • the outer surfaces of the drive unit 9, so the housing 15, the bearing flanges 14, 14 ', the adapter plate 16, the mounting plate 18 and the cover 20 together with the outer surfaces of the feed unit 7 and the mounting plates 25 of the rotary feedthrough 24 a smooth, closed, interrupted only by sealing rings, sterile or slightly sterile surface to be held;
  • these components are made of stainless steel.
  • the entire drive unit 9 with integrated bearing 22 for the agitator shaft 2 and integrated sealing of the interior of the agitator tank 1 on the container lid 6 and the agitator shaft 2 together with the feed unit 7 on the later from the agitator tank 1 outstanding Part of the agitator shaft 2 are mounted and bolted via the adapter plate 16 with the container lid 6 firmly.
  • the stirring blades 3 and the gassing elements 4 can advantageously be mounted outside the agitator vessel 1 on the agitator shaft 2. Only then is the agitator shaft 2 with the mounted agitator blades 3 and gassing elements 4 introduced to the stop of the container lid 6 on the container wall in the agitator tank 1 and the agitator tank 1 with the container lid 6 sealed.
  • two conical seats on the agitator shaft 2 and also two conical seats in the hub of the elements can preferably be turned on for each of the elements.
  • the hubs can be pressed axially onto the agitator shaft 2 mechanically.
  • the conical seats have a self-locking effect. The torque of the drive motor is completely transferred.
  • the stirrer according to the invention is particularly suitable for use in highly sterile processes. If required, the entire interior space can be cleaned in a highly sterile manner, for example by means of steam, which can also be introduced through the feed unit 7. By using only stainless steel for the entire agitator including the feed unit 7, the agitator can be heated as a solid mixer, unheated or cooled or used as a dryer (heated).

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

Abstract

For a mixer having a mixer shaft (2) that can be rotated in a mixer container (1), mixing members being arranged on the mixer shaft, the mixer being equipped with a drive unit (9) for the mixer shaft (2) that is located outside the mixer container (1) and with supply channels (26) for gaseous and/or liquid media, the mixer shaft (2) is guided out of the mixer container (1). The drive unit (9) is installed on the part of the mixer shaft (2) protruding from the mixer container (1) and rigidly connected to the container wall penetrated by the mixer shaft (2). The bearings (22) of the mixer shaft (2) and the seal (19) of the interior of the mixer container (1) in the area in which the mixer shaft (2) is fed through the container wall are integrated into the drive unit (9). Thus, a compact, space-saving design is achieved, by means of which even high demands for sterility can be met.

Description

Die Erfindung bezieht sich auf ein RĆ¼hrwerk mit einer in einem BehƤlter drehbaren RĆ¼hrwerkwelle, an der RĆ¼hrorgane angeordnet sind, und mit einer auƟerhalb des BehƤlters befindlichen Antriebseinheit fĆ¼r die RĆ¼hrwerkwelle. Solche RĆ¼hrwerke sind z.B. aus US 2007/0053238 und DE 202009006840 U bekannt.The invention relates to a stirrer with a rotatable agitator shaft in a container, are arranged on the stirrers, and with a located outside of the container drive unit for the agitator shaft. Such agitators are eg off US 2007/0053238 and DE 202009006840 U known.

An RĆ¼hrwerke, die in sterilen und hochsterilen Anwendungsbereichen, z.B. in der pharmazeutischen Industrie, eingesetzt werden, werden hohe Anforderungen, insbesondere hinsichtlich sicher zu gewƤhrender SterilitƤt gestellt. Sie mĆ¼ssen einerseits leicht zu reinigen und dabei steril zu machen sein, andererseits sollen Ablagerungen, Mƶglichkeiten der Verschmutzung, der Keimbildung usw. von vornherein weitgehendst vermieden werden.Stirrers used in sterile and highly sterile applications, e.g. in the pharmaceutical industry, high demands are made, in particular with regard to certain sterility. On the one hand, they have to be easy to clean and to be sterile, on the other hand, deposits, possibilities of contamination, nucleation, etc., should be largely avoided from the outset.

Bei bekannten RĆ¼hrwerken ist die aus dem BehƤlter herausgefĆ¼hrte RĆ¼hrwerkwelle mit der Antriebswelle einer separat bauenden Antriebseinheit verbunden, die aus dem eigentlichen Antriebsmotor und einem Getriebe besteht, welches die Drehzahl des Antriebsmotors auf die fĆ¼r das RĆ¼hrwerk erforderliche Drehzahl herabsetzt. Verbindungsstellen zwischen Baueinheiten sind immer anfƤllig fĆ¼r Schmutzablagerungen und Verunreinigungen, sie sind meist schwer zugƤnglich und damit schlecht zu reinigen und erst recht nur schwer steril zu halten. Eine Quelle fĆ¼r Verschmutzungen bildet z.B. auch das fĆ¼r ein Getriebe erforderliche Getriebeƶl; die KĆ¼hlrippen eines Motors sind anfƤllig fĆ¼r Ablagerungen.In known agitators, the agitator shaft led out of the container is connected to the drive shaft of a separately constructed drive unit, which consists of the actual drive motor and a gear which reduces the speed of the drive motor to the speed required for the agitator. Junctions between units are always vulnerable to dirt and impurities, they are usually difficult to access and thus difficult to clean and even more difficult to keep sterile. A source of contamination forms e.g. also the transmission oil required for a transmission; The cooling fins of an engine are prone to sedimentation.

Aufgabe der Erfindung ist es, ein RĆ¼hrwerk derart mit einer Antriebseinheit zu versehen und zu verbinden, dass Stellen, die fĆ¼r Ablagerungen und Verunreinigungen und, soweit wie mƶglich, auch deren Quellen vermieden werden und das RĆ¼hrwerk insgesamt, also einschlieƟlich seiner Antriebseinheit, hohen Erfordernissen an SterilitƤt, wie sie beispielsweise, aber nicht nur in der pharmazeutischen Industrie gestellt werden, gerecht wird, dabei notwendige Wartungs- und Reinigungsarbeiten zur Herstellung der SterilitƤt leichter ausfĆ¼hrbar und weniger hƤufig vorzunehmen sind. Die Antriebseinheit soll verkleinert und steriltechnisch optimiert werden.The object of the invention is to provide such an agitator with a drive unit and connect, that places that are avoided for deposits and impurities and, where possible, their sources and the agitator as a whole, including its drive unit, high requirements Sterility, as they are, for example, but not only made in the pharmaceutical industry, meet the necessary maintenance and cleaning work to make the sterility easier to carry out and less frequent. The drive unit is to be scaled down and optimized for sterilization.

ErfindungsgemƤƟ wird dies erreicht bei einem RĆ¼hrwerk nach Anspruch 1.This is achieved according to the invention in an agitator according to claim 1.

Bei einem RĆ¼hrwerk der eingangs genannten Art ist die RĆ¼hrwerkwelle aus dem RĆ¼hrwerkbehƤlter herausgefĆ¼hrt; dabei ist die Antriebseinheit auf dem aus dem RĆ¼hrwerkbehƤlter herausragenden Teil der RĆ¼hrwerkwelle montiert und mit der von der RĆ¼hrwerkwelle durchstoƟenen BehƤlterwand fest verbunden; zugleich sind die Lager der RĆ¼hrwerkwelle und die Abdichtung des Innenraums des RĆ¼hrwerkbehƤlters im Bereich der DurchfĆ¼hrung der RĆ¼hrwerkwelle durch die BehƤlterwand in die Antriebseinheit integriert. Die RĆ¼hrwerkwelle ist also zugleich auch Antriebswelle der Antriebseinheit und kann z.B. auch einstĆ¼ckig mit ihr ausgebildet sein. Dadurch und durch die Verbindung der Antriebseinheit mit der BehƤlterwand wird ein kompakter, Platz sparender Aufbau erreicht; der insgesamt leicht steril zu halten ist.In an agitator of the type mentioned, the agitator shaft is led out of the agitator tank; In this case, the drive unit is mounted on the protruding from the agitator tank part of the agitator shaft and fixedly connected to the pierced by the agitator shaft container wall; At the same time, the bearings of the agitator shaft and the seal of the interior of the agitator vessel in the region of the implementation of the agitator shaft are integrated through the container wall in the drive unit. The agitator shaft is therefore also the drive shaft of the drive unit and can e.g. also be integrally formed with her. As a result, and by the connection of the drive unit with the container wall, a compact, space-saving construction is achieved; the total is easy to keep sterile.

Die Antriebseinheit weist nach einer AusfĆ¼hrungsform einen Antriebsmotor auf, der auf dem aus dem RĆ¼hrwerkbehƤlter herausgefĆ¼hrten Teil der RĆ¼hrwerkwelle montiert und zwischen einem unteren und einem oberen Lagerflansch gehalten ist und mit der BehƤlterwand fest verbunden ist.According to one embodiment, the drive unit has a drive motor which is mounted on the part of the agitator shaft led out of the agitator vessel and held between a lower and an upper bearing flange and is fixedly connected to the container wall.

Indem die Lager der RĆ¼hrwerkwelle unmittelbar oberhalb und unterhalb des Antriebsmotors in Lagerflanschen in dafĆ¼r vorgesehenen Ausnehmungen angeordnet sind, werden diese Lager in die Antriebseinheit integriert, was zu einem kompakten, Raum sparenden Aufbau beitrƤgt und wodurch eine gute Lagerung der RĆ¼hrwerkwelle erreicht wird.By the bearings of the agitator shaft are arranged directly above and below the drive motor in bearing flanges in recesses provided for this, these bearings are integrated into the drive unit, which contributes to a compact, space-saving design and whereby a good storage of the agitator shaft is achieved.

Das RĆ¼hrwerk weist vorzugsweise gasdichte StromzufĆ¼hrungen zum Antriebsmotor auf.The agitator preferably has gas-tight power supply lines to the drive motor.

Nach einer anderen AusfĆ¼hrungsform ist ein erstes Lager der RĆ¼hrwerkwelle unmittelbar unterhalb des Antriebsmotors und ein zweites Lager ist im optimierten Abstand zum ersten Lager ebenfalls unterhalb des Antriebsmotors angeordnet, und ein Spalttopf ist zwischen Rotor und Stator angeordnet, durch den der RĆ¼hrwerkbehƤlter hermetisch abgeschlossen ist.According to another embodiment, a first bearing of the agitator shaft is directly below the drive motor and a second bearing is also arranged below the drive motor at the optimized distance from the first bearing, and a split pot is arranged between the rotor and stator, through which the agitator container is hermetically sealed.

Der Spalttopf kann aus einem faserverstƤrkten Kunststoff oder aus hochlegiertem Edelstahl bestehen.The containment shell may consist of a fiber-reinforced plastic or high-alloyed stainless steel.

Bevorzugt ist der Antriebsmotor ein Torquemotor; dabei kann dessen die Permanentmagnete tragender Rotor Ć¼ber eine Buchse durch eine Schrumpfscheibe oder einen Klemmring mit dem aus dem RĆ¼hrwerkbehƤlter herausragenden Teil der RĆ¼hrwerkwelle fest verbunden sein und sein die Wicklungen tragender Stator kann zwischen den Lagerflanschen gehalten sein. Ein Torquemotor ist ein getriebeloser Direktantrieb mit hohen Drehmomenten und relativ kleinen Drehzahlen und eignet sich in idealer Weise fĆ¼r prƤzise Direktantriebe, seine Drehzahl lƤsst sich vorteilhaft auf eine erwĆ¼nschte oder geforderte Drehzahl problemlos abregeln. Da kein Getriebe vorhanden ist, wird auch kein Getriebeƶl benƶtigt und so eine Quelle der Verschmutzung ausgeschlossen. Auch kommt er einer kleinen, Platz sparenden Bauweise entgegen.Preferably, the drive motor is a torque motor; while the rotor carrying the permanent magnets can be fixedly connected to the part of the agitator shaft protruding from the agitator vessel via a bush by a shrink disk or a clamping ring, and its stator carrying the windings can be held between the bearing flanges. A torque motor is a gearless direct drive with high torque and relatively low speeds and is ideally suited for precise direct drives, its speed can be easily adjusted to a desired or required speed easily. Since there is no gear, no gear oil is needed and so excluded a source of pollution. He also meets a small, space-saving design.

Der Antriebs- oder Torquemotor kann von einem zylinderfƶrmigen GehƤuse umschlossen sein, das mit den Lagerflanschen fest verbunden ist und dessen AuƟenflƤche mit den AuƟenflƤchen der Lagerflansche fluchtet.The drive or torque motor may be enclosed by a cylindrical housing which is fixedly connected to the bearing flanges and whose outer surface is flush with the outer surfaces of the bearing flanges.

Zur Montage kann eine die aus dem RĆ¼hrwerkbehƤlter herausgefĆ¼hrte RĆ¼hrwerkwelle umgebende, ringfƶrmige Adapterplatte vorzugsweise durch Verschraubungen fest mit dem BehƤlter verbunden sein. Der obere Lagerflansch, das GehƤuse des Antriebsmotors und der untere Lagerflansch kƶnnen mittels durch sie hindurchgehender Schrauben mit der Adapterplatte fest verbunden sein. Wenn die AuƟenflƤchen der Lagerflansche, des GehƤuses und der Adapterplatte miteinander fluchten, kann eine geschlossene, nur durch Dichtringe unterbrochene AuƟenflƤche gebildet werden, mit der sich SterilitƤt leicht herstellen lƤsst.For mounting, an annular adapter plate surrounding the agitator shaft leading out of the agitator vessel can be fixedly connected to the container, preferably by screwing. The upper bearing flange, the housing of the drive motor and the lower bearing flange can be firmly connected by means of screws passing through them with the adapter plate. If the outer surfaces of the bearing flanges, the housing and the adapter plate are aligned with each other, a closed, interrupted only by sealing rings outer surface can be formed, with which sterility can be easily produced.

Zwischen der Adapterplatte und dem unteren Lagerflansch kann zusƤtzlich eine Montageplatte angeordnet sein, die durch die Schrauben mit dem unteren Lagerflansch und der Adapterplatte fest verbunden ist und deren AuƟenflƤche mit den AuƟenflƤchen der Adapterplatte, des unteren und des oberen Lagerflansches und des GehƤuses fluchtet, so dass sie gemeinsam eine geschlossene, nur durch Dichtringe unterbrochene AuƟenflƤche bilden.In addition, a mounting plate may be disposed between the adapter plate and the lower bearing flange, which is fixedly connected by the screws to the lower bearing flange and the adapter plate and whose outer surface is aligned with the outer surfaces of the adapter plate, the lower and upper bearing flange and the housing, so that Together they form a closed, interrupted only by sealing rings outer surface.

Im Bereich der DurchfĆ¼hrung der RĆ¼hrwerkwelle durch die BehƤlterwand ist die Adapterplatte gegen die BehƤlterwand und gegen die Montageplatte oder den unteren Lagerflansch durch Dichtungen abgedichtet und die Montageplatte oder der untere Lagerflansch ist gegen die RĆ¼hrwerkwelle abgedichtet. So ist die Abdichtung des Innenraums des RĆ¼hrwerkbehƤlters in die Antriebseinheit integriert.In the field of implementation of the agitator shaft through the container wall, the adapter plate is sealed against the container wall and against the mounting plate or the lower bearing flange by seals and the mounting plate or the lower bearing flange is sealed against the agitator shaft. Thus, the sealing of the interior of the agitator tank is integrated into the drive unit.

Die Antriebseinheit kann nach oben durch einen Deckel dicht abgeschlossen sein, und mit diesem Deckel kann eine ZufĆ¼hrungseinheit verbunden sein, die so mit der Antriebseinheit eine Baueinheit bildet und Zuleitungen fĆ¼r gasfƶrmige und/oder flĆ¼ssige Medien aufweist. So wird die ZufĆ¼hrungseinheit in den kompakten, Platz sparenden Gesamtaufbau mit eingeschlossen. Die ZufĆ¼hrungseinheit kann eine DrehdurchfĆ¼hrung sein.The drive unit can be sealed upwards by a cover, and with this cover, a supply unit can be connected, which thus forms a structural unit with the drive unit and has supply lines for gaseous and / or liquid media. Thus, the feeder unit is included in the compact, space-saving overall construction. The feed unit can be a rotary feedthrough.

FĆ¼r jedes auf der RĆ¼hrwerkwelle zu montierende RĆ¼hrorgan kƶnnen zwei konische Sitze auf der RĆ¼hrwerkwelle und zwei konische Sitze in der Nabe des RĆ¼hrorgans angedreht sein. So kƶnnen die Naben axial auf die RĆ¼hrwerkwelle mechanisch aufgepresst werden. Die konischen Sitze wirken selbsthemmend. Das Drehmoment des Antriebsmotors wird komplett Ć¼bertragen.For each impeller to be mounted on the agitator shaft, two conical seats on the agitator shaft and two conical seats in the hub of the agitator may be turned on. Thus, the hubs can be pressed axially onto the agitator shaft mechanically. The conical seats have a self-locking effect. The torque of the drive motor is completely transferred.

Die Erfindung wird im Folgenden anhand der anhƤngenden Zeichnung beispielhaft genauer beschrieben es zeigen:

Fig. 1
einen LƤngsschnitt durch ein erfindungsgemƤƟes RĆ¼hrwerk mit Antriebseinheit,
Fig. 2
einen Querschnitt entlang der Linie C - C in Fig. 1 und
Fig. 3
einen LƤngsschnitt durch die Antriebseinheit nach Fig. 1 in einem grĆ¶ĆŸeren MaƟstab.
The invention will be described in greater detail below with reference to the appended drawing, in which:
Fig. 1
a longitudinal section through an inventive agitator with drive unit,
Fig. 2
a cross section along the line C - C in Fig. 1 and
Fig. 3
a longitudinal section through the drive unit to Fig. 1 on a larger scale.

Fig. 1 zeigt ein erfindungsgemƤƟes RĆ¼hrwerk mit dem RĆ¼hrwerkbehƤlter 1, der darin drehbaren RĆ¼hrwerkwelle 2, die in mehreren Ebenen abwechselnd RĆ¼hrblƤtter 3 und Begasungselemente 4 trƤgt. Eine der Anzahl der Begasungselemente 4 entsprechende Anzahl von DurchfĆ¼hrungen 5 in der RĆ¼hrwerkwelle 2 fĆ¼hren von oben zu den Begasungselementen 4; gasfƶrmige und/oder flĆ¼ssige Medien werden also von oben durch die DurchfĆ¼hrungen 5 und Ć¼ber die Begasungselemente 4 in den BehƤlter 1 eingeleitet. Im Prinzip kann die RĆ¼hrwerkwelle 2 auch eine Hohlwelle sein, aus deren Hohlraum dann Abzweigungen zu den Begasungselementen 4 fĆ¼hren. FĆ¼r eine gleichmƤƟige Begasung im gesamten RĆ¼hrwerkbehƤlter 1 ist aber eine individuelle GaszufĆ¼hrung zu den Begasungselementen 4 in den verschiedenen Ebenen von Vorteil. Der RĆ¼hrwerkbehƤtter 1 ist in der dargestellten AusfĆ¼hrungsform nach oben zunƤchst und bevorzugt Ć¼ber seinen gesamten Durchmesser offen und wird durch einen BehƤlterdeckel 6 dicht verschlossen, dessen Durchmesser dann auch gleich dem Durchmesser des RĆ¼hrwerkbehƤlters 1 ist; in jedem Fall soll die durch den BehƤlterdeckel 6 zu verschlieƟende Ɩffnung des RĆ¼hrwerkbehƤlters 1 groƟ genug sein, damit die RĆ¼hrwerkwelle 2 zusammen mit den bereits auf ihr montierten RĆ¼hrblƤttern 3 und Begasungselementen 4 bei der Montage durch diese Ɩffnung eingefĆ¼hrt werden kann. Die RĆ¼hrwerkwelle 2 ist durch den BehƤlterdeckel 6, der einen Teil der BehƤlterwand bildet, herausgefĆ¼hrt, und auf dem aus dem RĆ¼hrwerkbehƤlter 1 herausragenden Teil der RĆ¼hrwerkswelle 2 ist die Antriebseinheit bzw. der Antriebsmotor 9 des RĆ¼hrwerks direkt gelagert und durch Verschraubungen 8 mit dem BehƤltƤrdeckel 6 verbunden. RĆ¼hrwerkwelle 2 und Antriebswelle des Antriebsmotors 9 der Antriebseinheit sind also als einstĆ¼ckiges Bauteil ausgebildet. Ɯber der Antriebseinheit bzw. dem Antriebsmotor 9 konzentrisch angeordnet ist die ZufĆ¼hrungseinheit 7 fĆ¼r gasfƶrmige und/oder flĆ¼ssige Medien, die ebenfalls die herausgefĆ¼hrte RĆ¼hrwerk- und Antriebswelle 2 umschlieƟt und mit der Antriebseinheit bzw. dem Antriebsmotor 9 vorzugsweise fest verbunden ist. Fig. 1 shows an inventive agitator with the agitator 1, the rotatable agitator shaft 2, which alternately wears blades in a plurality of planes 3 and 4 gassing. One of the number of gassing elements 4 corresponding number of bushings 5 in the agitator shaft 2 lead from above to the gassing elements 4; Gaseous and / or liquid media are thus introduced from above through the passages 5 and via the gassing elements 4 into the container 1. In principle, the agitator shaft 2 may also be a hollow shaft, from the cavity then branches lead to the gassing elements 4. For a uniform fumigation in the entire agitator 1 but an individual gas supply to the gassing 4 in the different levels of advantage. The agitator 1 is in the illustrated embodiment, initially above and preferably open over its entire diameter and is sealed by a container lid 6, whose diameter is then equal to the diameter of the agitator tank 1; In any case, to be closed by the container lid 6 opening of the agitator tank 1 should be large enough so that the agitator shaft 2 can be introduced together with the already mounted on her agitator blades 3 and gassing elements 4 during assembly through this opening. The agitator shaft 2 is led out through the container lid 6, which forms part of the container wall, and the drive unit or the drive motor 9 of the agitator is mounted directly on the part of the agitator shaft 2 protruding from the agitator vessel 1 and screwed to the container lid 6 by screw connections 8 connected. Agitator shaft 2 and drive shaft of the drive motor 9 of the drive unit are thus formed as a one-piece component. Concentrically arranged above the drive unit or the drive motor 9 is the supply unit 7 for gaseous and / or liquid media, which likewise encloses the outgoing agitator and drive shaft 2 and is preferably firmly connected to the drive unit or the drive motor 9.

Der Antriebsmotor 9 ist vorteilhafterweise ein Torquemotor 9. Dieser hat den Vorteil, dass er als getriebeloser Direktantrieb eingesetzt werden kann. Er kann auf eine fĆ¼r ein RĆ¼hrwerk gĆ¼nstige, niedrige Drehzahl herabgeregelt werden und weist ein erwĆ¼nschtes, hohes Drehmoment auf. Da ein Getriebe nicht vorhanden ist, wird auch kein Getriebeƶl benƶtigt, das Quelle fĆ¼r Verschmutzungen oder Verunreinigungen sein kƶnnte.The drive motor 9 is advantageously a torque motor 9. This has the advantage that it can be used as a gearless direct drive. It can be down-regulated to a favorable for a stirrer, low speed and has a desired, high torque. Since a gearbox is not available, no gear oil is needed, which could be a source of contamination or impurities.

Wie deutlicher in Fig. 3 zu erkennen ist, ist der mit Permanentmagneten bestĆ¼ckte Rotor 10 des Torquemotors 9 getragen von einer Buchse 11 mit Hilfe einer Schrumpfscheibe 12 oder alternativ mit Hilfe eines Klemmrings (nicht dargestellt) mit der RĆ¼hrwerkwelle 2, die auch die Antriebswelle des Torquemotors 9 ist, verbunden. Der die Wicklungen des Torquemotors 9 tragende Stator 13 ist zwischen Lagerflanschen 14, 14' gehalten, die gegen die aus dem BehƤlter 1 herausgefĆ¼hrte RĆ¼hrwerkwelle 2 abgedichtet sind. Der Antriebs- bzw. Torquemotor 9 ist von einem zylinderfƶrmigen GehƤuse 15 umschlossen, das abgedichtet auf dem unteren Lagerflansch 14 ruht. Auf dem GehƤuse 15 wiederum liegt ebenfalls abgedichtet der obere Lagerflansch 14' auf. Mit dem BehƤlterdeckel 6 ist eine die herausgefĆ¼hrte RĆ¼hrwerkwelle 2 umgebende, massive, gegen den BehƤlterdeckel 6 durch O-Ringe abgedichtete Adapterplatte 16 verschraubt, und mit dieser ist das GehƤuse 15 des Torquemotors 9 durch Schrauben 17 fest verbunden. Zwischen der Adapterplatte 16 und dem unteren Lagerflansch 14 kann eine Montageplatte 18 angeordnet sein, die gegen die Adapterplatte 16, gegen den unteren Lagerflansch 14 und gegen die RĆ¼hrwerkwelle 2 durch Dichtungen 19 abgedichtet ist. Damit wird eine Abdichtung des Innenraums des RĆ¼hrwerkbehƤlters 1 auƟerhalb des RĆ¼hrwerkbehƤlters 1 erreicht, was fĆ¼r die geforderte SterilitƤt des BehƤlterinnenraums von Vorteil ist, denn Abdichtungen innerhalb des BehƤlterinnenraums fallen weg, seine Abdichtung ist in die Antriebseinheit bzw. den Antriebsmotor 9 integriert. Ein auf dem oberen Lagerflansch 14' ruhender, ringfƶrmiger Deckel 20 ist gegen die durch ihn hindurchgefĆ¼hrte RĆ¼hrwerkwelle 2 und den oberen Lagerflansch 14' abgedichtet und schlieƟt die Antriebseinheit 9 nach oben ab. In der AuƟenflƤche des Stators 13 sind Rillen 21 fĆ¼r eine WasserkĆ¼hlung vorgesehen; damit kann auf KĆ¼hlrippen am Antriebsmotor 9, zwischen denen sich Ablagerungen und Verschmutzungen bilden kƶnnten, verzichtet werden. Alternativ kƶnnen diese Rillen 21 auch in der Innenwand des GehƤuses 15 vorgesehen sein.How clearer in Fig. 3 can be seen, equipped with permanent magnets rotor 10 of the torque motor 9 is supported by a bushing 11 by means of a Shrink disc 12 or alternatively by means of a clamping ring (not shown) with the agitator shaft 2, which is also the drive shaft of the torque motor 9, connected. The stator 13 carrying the windings of the torque motor 9 is held between bearing flanges 14, 14 ', which are sealed against the agitator shaft 2 brought out of the container 1. The drive or torque motor 9 is enclosed by a cylindrical housing 15 which rests sealed on the lower bearing flange 14. On the housing 15 in turn is also sealed the upper bearing flange 14 'on. With the container lid 6, the outgoing RĆ¼hrwerkwelle 2 surrounding solid, sealed against the container lid 6 by O-rings adapter plate 16 is screwed, and with this, the housing 15 of the torque motor 9 is firmly connected by screws 17. Between the adapter plate 16 and the lower bearing flange 14, a mounting plate 18 may be arranged, which is sealed against the adapter plate 16, against the lower bearing flange 14 and against the agitator shaft 2 by seals 19. Thus, a seal of the interior of the agitator 1 outside the agitator tank 1 is achieved, which is for the required sterility of the container interior of advantage, because seals within the container interior fall away, its seal is integrated into the drive unit and the drive motor 9. An annular cover 20 resting on the upper bearing flange 14 'is sealed against the agitator shaft 2 passing through it and the upper bearing flange 14' and closes the drive unit 9 upwards. In the outer surface of the stator 13 grooves 21 are provided for a water cooling; This can be dispensed with cooling ribs on the drive motor 9, between which deposits and dirt could form. Alternatively, these grooves 21 may also be provided in the inner wall of the housing 15.

Die Lager 22 der RĆ¼hrwerkwelle 2, vorzugsweise Rillenkugellager, sind nach der Erfindung ebenfalls in die Antriebseinheit 9 integriert, befinden sich auƟerhalb des RĆ¼hrwerkbehƤlters 1 und sind unmittelbar oberhalb und unterhalb des Antriebs- bzw. Torquemotors 9 in dafĆ¼r vorgesehenen Ausnehmungen 23 der Lagerflansche 14, 14' angeordnet und abgedichtet.The bearings 22 of the agitator shaft 2, preferably deep groove ball bearings, are also integrated according to the invention in the drive unit 9, are outside of the agitator 1 and are immediately above and below the drive or torque motor 9 in designated recesses 23 of the bearing flanges 14, 14th 'arranged and sealed.

Nach einer anderen AusfĆ¼hrungsform (nicht dargestellt) kann ein erstes Lager der RĆ¼hrwerkwelle 2 unmittelbar unterhalb des Antriebsmotors 9 und eine zweites Lager ebenfalls unterhalb des Antriebsmotors 9 aber im optimierten Abstand zum ersten Lager angeordnet sein, und zwischen Rotor und Stator des Antriebsmotors kann ein Spalttopf angeordnet sein, durch den der BehƤlterinnenraum hermetisch abgeschlossen wird. Ein solcher Spalttopf kann bevorzugt aus faserverstƤrktem Kunststoff oder aus hochlegiertem Edelstahl bestehen.According to another embodiment (not shown), a first bearing of the agitator shaft 2 immediately below the drive motor 9 and a second bearing also be arranged below the drive motor 9 but at the optimized distance from the first bearing, and between the rotor and the stator of the drive motor, a split pot can be arranged, through which the container interior is hermetically sealed. Such a containment shell may preferably consist of fiber-reinforced plastic or high-alloyed stainless steel.

Um die hermetische Abdichtung des BehƤlterinnenraums zu gewƤhrleisten, erfolgt die Stromversorgung des Antriebsmotors Ć¼ber gasdichte StromzufĆ¼hrungen.In order to ensure the hermetic seal of the container interior, the power supply of the drive motor via gas-tight power supply lines.

Nach der dargestellten AusfĆ¼hrungsform ist auf dem die Antriebseinheit bzw. den Antriebsmotor 9 nach oben abschlieƟenden Deckel 20 eine die ZufĆ¼hrungseinheit 7 bildende DrehdurchfĆ¼hrung 24 montiert, die aus mehreren Ć¼bereinander angeordneten, die RĆ¼hrwerkwelle 2 umgebenden Montagescheiben 25 besteht, welche gegeneinander und gegen die RĆ¼hrwerkwelle 2 abgedichtet sind und die in die DurchfĆ¼hrungen 5 der RĆ¼hrwerkwelle 1 mĆ¼ndende Zuleitungen 26 fĆ¼r das in den RĆ¼hrwerkbehƤlter 1 einzubringende gasfƶrmige und/oder flĆ¼ssige Medium aufweisen. Die DurchfĆ¼hrungen 5 durch die RĆ¼hrwerkwelle 2 sind an deren oberen Enden durch Stopfen 27 verschlossen. Eine Abdeckung 28 schlieƟt die DrehdurchfĆ¼hrung 24 insgesamt dicht nach oben ab. Das einzubringende Medium wird durch die ZufĆ¼hrungseinheit 7 und durch die Antriebseinheit bzw. den Antriebsmotor 9 hindurch in den RĆ¼hrwerkbehƤlter 1 eingeleitet.According to the illustrated embodiment, a rotary feedthrough 24 forming the feed unit 7 is mounted on the cover 20 terminating the drive unit or the drive motor 9 and consisting of a plurality of superimposed assembly disks 25 surrounding the agitator shaft 2, which seals against each other and against the agitator shaft 2 are and have in the passages 5 of the agitator shaft 1 opening leads 26 for the introduced into the agitator 1 gaseous and / or liquid medium. The passages 5 through the agitator shaft 2 are closed at the upper ends by plugs 27. A cover 28 closes the rotary leadthrough 24 altogether tightly upwards. The medium to be introduced is introduced through the feed unit 7 and through the drive unit or the drive motor 9 into the agitator vessel 1.

Bei dem dargestellten, erfindungsgemƤƟen RĆ¼hrwerk bilden die AuƟenflƤchen der Antriebseinheit 9, also des GehƤuses 15, der Lagerflansche 14, 14', der Adapterplatte 16, der Montageplatte 18 und des Deckels 20 zusammen mit den AuƟenflƤchen der ZufĆ¼hrungseinheit 7 bzw. der Montagescheiben 25 der DrehdurchfĆ¼hrung 24 eine glatte, geschlossene, nur durch Dichtringe unterbrochene, sterile oder leicht steril zu haltende OberflƤche; bevorzugt bestehen diese Bauteile aus Edelstahl.In the illustrated agitator according to the invention, the outer surfaces of the drive unit 9, so the housing 15, the bearing flanges 14, 14 ', the adapter plate 16, the mounting plate 18 and the cover 20 together with the outer surfaces of the feed unit 7 and the mounting plates 25 of the rotary feedthrough 24 a smooth, closed, interrupted only by sealing rings, sterile or slightly sterile surface to be held; Preferably, these components are made of stainless steel.

Bei der Montage kann die gesamte Antriebseinheit 9 mit integrierter Lagerung 22 fĆ¼r die RĆ¼hrwerkwelle 2 und integrierter Abdichtung des Innenraums des RĆ¼hrwerkbehƤlters 1 am BehƤlterdeckel 6 und der RĆ¼hrwerkwelle 2 zusammen mit der ZufĆ¼hrungseinheit 7 auf dem spƤter aus dem RĆ¼hrwerkbehƤlter 1 herausragenden Teil der RĆ¼hrwerkwelle 2 montiert werden und Ć¼ber die Adapterplatte 16 mit dem BehƤlterdeckel 6 fest verschraubt werden. Infolge des erfindungsgemƤƟen Aufbaus kƶnnen die RĆ¼hrblƤtter 3 und die Begasungselemente 4 vorteilhaft auƟerhalb des RĆ¼hrwerkbehƤtters 1 auf der RĆ¼hrwerkwelle 2 montiert werden. Erst danach wird die RĆ¼hrwerkwelle 2 mit den montierten RĆ¼hrblƤttern 3 und Begasungselementen 4 bis zum Anschlag des BehƤlterdeckels 6 auf der BehƤlterwand in den RĆ¼hrwerkbehƤlter 1 eingefĆ¼hrt und der RĆ¼hrwerkbehƤlter 1 mit dem BehƤlterdeckel 6 dicht verschlossen.During assembly, the entire drive unit 9 with integrated bearing 22 for the agitator shaft 2 and integrated sealing of the interior of the agitator tank 1 on the container lid 6 and the agitator shaft 2 together with the feed unit 7 on the later from the agitator tank 1 outstanding Part of the agitator shaft 2 are mounted and bolted via the adapter plate 16 with the container lid 6 firmly. As a result of the structure according to the invention, the stirring blades 3 and the gassing elements 4 can advantageously be mounted outside the agitator vessel 1 on the agitator shaft 2. Only then is the agitator shaft 2 with the mounted agitator blades 3 and gassing elements 4 introduced to the stop of the container lid 6 on the container wall in the agitator tank 1 and the agitator tank 1 with the container lid 6 sealed.

FĆ¼r die Montage der RĆ¼hrblƤtter 3 und der Begasungselemente 4 auf der RĆ¼hrwerkwelle 2 kƶnnen vorzugsweise fĆ¼r jedes der Elemente zwei konische Sitze auf der RĆ¼hrwerkwelle 2 und ebenso zwei konische Sitze in der Nabe der Elemente angedreht werden. So kƶnnen die Naben axial auf die RĆ¼hrwerkwelle 2 mechanisch aufgepresst werden. Die konischen Sitze wirken selbsthemmend. Das Drehmoment des Antriebsmotors wird komplett Ć¼bertragen.For the assembly of the stirring blades 3 and the gassing elements 4 on the agitator shaft 2, two conical seats on the agitator shaft 2 and also two conical seats in the hub of the elements can preferably be turned on for each of the elements. Thus, the hubs can be pressed axially onto the agitator shaft 2 mechanically. The conical seats have a self-locking effect. The torque of the drive motor is completely transferred.

Das erfindungsgemƤƟe RĆ¼hrwerk eignet sich besonders fĆ¼r den Einsatz bei hochsterilen Prozessen. Der gesamte Innenraum kann bei Bedarf z.B. mittels Dampf, der ebenfalls durch die ZufĆ¼hrungseinheit 7 eingeleitet werden kann, hochsteril gereinigt werden. Durch die Verwendung ausschlieƟlich von Edelstahl fĆ¼r das gesamte RĆ¼hrwerk einschlieƟlich der ZufĆ¼hrungseinheit 7 kann das RĆ¼hrwerk auch als Feststoffmischer beheizt, unbeheizt oder gekĆ¼hlt oder als Trockner (beheizt) eingesetzt werden.The stirrer according to the invention is particularly suitable for use in highly sterile processes. If required, the entire interior space can be cleaned in a highly sterile manner, for example by means of steam, which can also be introduced through the feed unit 7. By using only stainless steel for the entire agitator including the feed unit 7, the agitator can be heated as a solid mixer, unheated or cooled or used as a dryer (heated).

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
RĆ¼hrwerkbehƤlterstirring unit
22
RĆ¼hrwerkwelleagitator shaft
33
RĆ¼hrblƤtterstirring blades
44
Begasungselementegassing
55
DurchfĆ¼hrungenbushings
66
BehƤlterdeckelcontainer lid
77
ZufĆ¼hrungseinheitfeeding unit
88th
Verschraubungenfittings
99
Antriebseinheit, Antriebsmotor, TorquemotorDrive unit, drive motor, torque motor
1010
Rotorrotor
1111
BuchseRifle
1212
Schrumpfscheibeshrink disc
1313
Statorstator
1414
Lagerflanschebearing flanges
1515
GehƤusecasing
1616
Adapterplatteadapter plate
1717
Schraubenscrew
1818
Montageplattemounting plate
1919
Dichtungenseals
2020
Deckelcover
2121
Rillengrooves
2222
Lagercamp
2323
Ausnehmungenrecesses
2424
DrehdurchfĆ¼hrungRotary union
2525
Montagescheibeninstallation discs
2626
Zuleitungenleads
2727
StopfenPlug
2828
Abdeckungcover

Claims (14)

  1. Mixer with a mixer shaft (2) which is rotatable in a mixer container (1) and on which mixing members (3) are arranged, with a drive unit, located outside the mixer container, for the mixer shaft, the mixer shaft being led out of the mixer container, the drive unit (9) being mounted on that part of the mixer shaft (2) which projects out of the mixer container (1) and being firmly connected to the container wall pierced by the mixer shaft (2), characterized in that the bearings (22) for the mixer shaft (2) and the seal (19) of the inner space of the mixer container (1) are integrated into the drive unit (9) in the region of the leadthrough of the mixer shaft (2) through the container wall.
  2. Mixer according to Claim 1, characterized in that the drive unit (9) has a drive motor (9) which is mounted on that part of the mixer shaft (2) which is led out of the mixer container (1), and which is held between a lower and an upper bearing flange (14, 14') and is firmly connected to the container wall or to the container cover (6).
  3. Mixer according to Claim 2, characterized in that the bearings (22) of the mixer shaft (2) are arranged directly above and below the drive motor (9) in the bearing flanges (14, 14') in recesses provided for this purpose.
  4. Mixer according to Claim 1, characterized by gastight current feeds to the drive motor (9).
  5. Mixer according to Claim 2, characterized in that a first bearing of the mixer shaft (2) is arranged directly below the drive motor (9) and a second bearing is arranged at an optimized distance from the first bearing likewise below the drive motor (9), and in that a split can, by which the mixer container (1) is hermetically closed off, is arranged between the rotor and stator.
  6. Mixer according to Claim 5, characterized in that the split can consists of a fibre-reinforced plastic or of high-alloyed high-grade steel.
  7. Mixer according to Claim 2, characterized in that the drive motor (9) is a torque motor (9), in that its rotor (19) carrying the permanent magnets is firmly connected via a bush (11), by means of a shrunk-fit disc (12) or a clamping ring, to that part of the mixer shaft (2) which projects out of the mixer container (1), and in that its stator (13) carrying the windings is held between the bearing flanges (14, 14').
  8. Mixer according to Claim 2, characterized in that the drive motor (9) is surrounded by a cylindrical housing (15) which is firmly connected to the bearing flanges (14, 14') and the outer face of which is in alignment with the outer faces of the bearing flanges (14, 14').
  9. Mixer according to Claim 2, characterized in that a ring-shaped adapter plate (16) surrounding the mixer shaft (2) led out of the mixer container (1) is firmly connected to the mixer container (1) by means of screw connections (8), in that the upper bearing flange (14'), the housing (15) of the drive motor (9) and the lower bearing flange (14) are firmly connected to the adapter plate (16) by means of screws (17) passing through them, and in that the outer faces of the bearing flanges (14, 14'), of the housing (15) and of the adapter plate (16) are in alignment with one another or form a closed outer face interrupted only by sealing rings.
  10. Mixer according to Claim 9, characterized in that between the adapter plate (16) and the lower bearing flange (14) is arranged a mounting plate (18) which is firmly connected to the lower bearing flange (14) and to the adapter plate (16) by means of the screws (17) and the outer face of which is in alignment with the outer faces of the adapter plate (16), the lower and the upper bearing flange (14, 14') and the housing (15) and forms with these a closed outer face interrupted only by sealing rings.
  11. Mixer according to Claim 10, characterized in that, in the region of the leadthrough of the mixer shaft (2) through the container wall, the adapter plate (16) is sealed off relative to the container wall and relative to the mounting plate (18) or the lower bearing flange (14) by means of seals (19) and the mounting plate (18) or the lower bearing flange (14) is sealed off relative to the mixer shaft (2).
  12. Mixer according to Claim 1, characterized in that the drive unit (9) is sealingly closed off upwardly by a cover (20), and the cover (20) has connected to it a feed unit (7) which forms a structural unit with the drive unit (9) and which has feed lines (26) for gaseous and/or liquid media.
  13. Mixer according to Claim 12, characterized in that the feed unit (7) is a rotary leadthrough.
  14. Mixer according to Claim 1, characterized in that, for each mixing member to be mounted on the mixer shaft (2), two conical seats are lathe-turned on the mixer shaft (2) and two conical seats are lathe-turned in the hub of each mixing member.
EP11717927.5A 2010-02-22 2011-02-19 Mixer Not-in-force EP2539061B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010008822A DE102010008822A1 (en) 2010-02-22 2010-02-22 agitator
PCT/DE2011/000151 WO2011100962A1 (en) 2010-02-22 2011-02-19 Mixer

Publications (2)

Publication Number Publication Date
EP2539061A1 EP2539061A1 (en) 2013-01-02
EP2539061B1 true EP2539061B1 (en) 2013-12-25

Family

ID=44260766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11717927.5A Not-in-force EP2539061B1 (en) 2010-02-22 2011-02-19 Mixer

Country Status (5)

Country Link
EP (1) EP2539061B1 (en)
DE (1) DE102010008822A1 (en)
DK (1) DK2539061T3 (en)
ES (1) ES2454550T3 (en)
WO (1) WO2011100962A1 (en)

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* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
DE112013002061B4 (en) * 2012-04-16 2020-07-23 The Procter & Gamble Company Fluid systems and methods for transferring standalone items

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* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
GB2511476A (en) * 2012-12-07 2014-09-10 Thomas Andreas Guenther Device and system for hydrocarbon conversion
EP3083023A1 (en) 2013-12-17 2016-10-26 Bayer Cropscience LP Mixing systems, methods, and devices with extendible impellers
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CN110538590B (en) * 2019-09-29 2024-06-28 čšŒåŸ å‡Æē››å·„ēØ‹ęŠ€ęœÆęœ‰é™å…¬åø Stirring mechanism of vertical stirrer
CN111773937A (en) * 2020-07-20 2020-10-16 čŠœę¹–åŽę“ēŽÆäæč®¾å¤‡ęœ‰é™å…¬åø Double-shaft humidifying and stirring device capable of automatically feeding
CN112678993A (en) * 2020-12-24 2021-04-20 陕č„æéøæꘊēŽÆäæęœ‰é™å…¬åø Ozone catalytic oxidation sewage treatment device

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DE102010008822A1 (en) 2011-08-25
EP2539061A1 (en) 2013-01-02
ES2454550T3 (en) 2014-04-10
DK2539061T3 (en) 2014-03-31

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