EP0617999B1 - Mixer with magnetic coupling - Google Patents
Mixer with magnetic coupling Download PDFInfo
- Publication number
- EP0617999B1 EP0617999B1 EP94103364A EP94103364A EP0617999B1 EP 0617999 B1 EP0617999 B1 EP 0617999B1 EP 94103364 A EP94103364 A EP 94103364A EP 94103364 A EP94103364 A EP 94103364A EP 0617999 B1 EP0617999 B1 EP 0617999B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixer
- internal chamber
- output shaft
- permanent magnets
- barrier fluid
- 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.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/453—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements
- B01F33/4534—Magnetic mixers; Mixers with magnetically driven stirrers using supported or suspended stirring elements using a rod for supporting the stirring element, e.g. stirrer sliding on a rod or mounted on a rod sliding in a tube
Definitions
- the invention relates to a mixer according to the preamble of claim 1.
- Such mixers which are provided with a comminution device, are often used to mix substances, at least some of which are particularly aggressive, hazardous to health or otherwise not environmentally compatible.
- radial sealing rings, single-acting mechanical seals or double-acting mechanical seals have been used, but they have the disadvantage that, in the event of a failure, they no longer prevent the substances in the mixer from escaping to the outside.
- Even if double-acting mechanical seals are used if the seal on the atmosphere side fails, the barrier liquid may escape, which itself does not have to be environmentally friendly, which in turn also allows substances treated in the mixer to escape.
- a magnetic coupling which serves to drive a stirring device located in a container.
- a magnetic coupling is provided which has a drive head coupled to the output shaft of the motor and provided with permanent magnets on an inner wall and a rotor arranged in this drive head, which is mounted on a
- the outside is provided with permanent magnets assigned to the permanent magnets of the driving head and is connected in a rotationally fixed manner to a clutch output shaft coupled to the working head.
- the shaft carrying the stirrer and passing through the container wall is mounted in a bearing bush.
- the invention has for its object to design a mixer of the generic type so that leakage of substances treated in the mixer through the recess that receives the shaft leading to the working head of the shredding device is reliably avoided.
- the magnetic coupling in connection with the containment shell ensures that the recess in the container wall opens into a closed space, namely the interior of the containment shell, which is completely sealed off from the outside.
- the design of the mechanical seal and the leadership of the barrier fluid ensures that the heat caused by friction and eddy currents is removed from the interior of the containment shell, this barrier fluid is simultaneously used to lubricate the bearing in which the rotor of the Magnetic clutch is mounted.
- a cylindrical container wall 1 of a mixer or mixing reactor 2 is shown, in the interior 3 of which a rotary drive, not shown, is arranged.
- a comminution device 4 is attached to the container wall 1, the working head 5 of which is arranged in the interior 3 in order to break up agglomerates of mixed material, to shear mixed material, to homogenize it or to mix the mixed material in another way for intensive mechanical treatment undergo.
- Such mixers or mixing reactors are generally known, for example from DE 38 39 671 A1 (corresponding to US Pat. No. 5,018,673).
- the shredding device 4 has an electric motor 6, which is supported by a supporting frame 7 on a base plate 8, which is attached to the container wall 1.
- a magnetic coupling 9 is provided between the motor 6 and the working head 5 and is arranged within the supporting frame 7.
- the magnetic coupling 9 has a pot-shaped drive head 11 which is connected to the output shaft 10 of the motor 6 in a rotationally fixed manner, on the cylindrical inner wall 12 of which permanent magnets 14 are attached concentrically to the common axis 13 of the motor 6, coupling 9 and working head 5, specifically via the inner circumference of the inner wall 12.
- the working head 5 is rotatably connected to a clutch output shaft 15 which passes through the container wall 1 or the base plate 8. It is on the outside of the mixer 2 in a bearing 16 about the axis 13 freely rotatable.
- the bearing 16 has a bearing block 17 connected to the base plate 8, which is provided with a ceramic slide bearing shell 18.
- a bearing sleeve 19 is rotatably mounted, which is rotatably arranged in the shell 18.
- the ends of the bearing sleeve 19 are also assigned axial bearing rings 20 which are supported against corresponding bearing surfaces 21 of the slide bearing shell 18, as a result of which the output shaft 15 is on the one hand freely rotatable and on the other hand axially immovable in the fixed bearing block 17.
- pot-shaped rotor 22 is attached in a rotationally fixed manner, on the cylindrical outer wall 22a of which permanent magnets 23 are arranged, which are arranged concentrically to the axis 13 and - with respect to the direction of the axis 13 - overlapping with the permanent magnets 14.
- These permanent magnets 23 are also distributed over the circumference of the rotor 22. They are each arranged with opposite polarity to the permanent magnets 14.
- an air gap 24 is formed, the extent of which radially to the axis 13 should in principle be as small as possible in order to make the magnetic coupling between the permanent magnets 14 and the permanent magnets 23 as large as possible.
- a can 25 is provided, the cylindrical wall 26 of which passes through the air gap 24 and whose bottom 27, which is formed integrally with the wall 26, is located between the bottom 28 of the driving head 11 and the bottom 29 of the rotor 22.
- the containment shell 25 is provided with a flange 30 and is screwed to the base plate 8 in a gas-tight and liquid-tight manner by means of a seal 31.
- the clutch output shaft 15 is sealed in a recess 32 passing through the base plate 8 and the container wall 1 by means of a single-acting mechanical seal 33, which is connected on its side facing the interior 34 of the containment shell 25 to a sealing liquid supply channel 35.
- the barrier liquid on the one hand prevents the escape of solids from the interior 3 of the mixer 2 into the bearing 16 and even more so outdoors. Insofar as there are liquid or volatile substances in the interior of the mixer 2 and emerge through the mechanical seal 33 into the interior 34, they are absorbed by the sealing liquid and discharged therefrom through a sealing liquid discharge channel 36, which opens out from the interior 34 of the containment shell 25. This interior 34 of the can 25 is therefore completely filled with sealing liquid.
- At least one transfer channel 37 is provided in the bearing block 17.
- the barrier liquid can also act as a lubricant in the bearing 16, for which purpose on the one hand the bearing block 17 and on the other hand the slide bearing shell 18 are provided with lubrication channels 38 which are open to the interior 34.
- the barrier liquid which also acts as a lubricant, does not necessarily have to be oil. It can be the same liquid that is used in the interior 3 of the mixer 2. If this liquid is aggressive, the parts located in the interior 34, including the containment shell 25, must be made of a material that is resistant to this.
- the barrier fluid supply channel 35 and the barrier fluid discharge channel 36 each have a connection 39, 40 on their outside, to which a barrier fluid supply line 41 and a barrier fluid discharge line 42 are connected.
- the barrier liquid discharge line 42 leads to a closed container 43, from which in turn the supply line 41 opens.
- a pump 44 is connected to the feed line. The pumping of the sealing liquid in this closed circuit thus takes place in the direction of 45.
- the pressure in this sealing liquid circuit can be adapted to the pressure in the interior 3 of the mixer or mixing reactor 2.
- the working head 5 has, in a known manner, blades 46 clamped on the end of the clutch output shaft 15 located in the interior 3 of the mixer 2.
- These knives are known, for example from DE 38 39 671 A1 (corresponding to US Pat. No. 5,018,673).
- rotor-stator systems can also be provided, in which case the corresponding rotor is coupled to the output shaft 15.
- Such rotor-stator systems are known for example from EP 0 200 003 A2 (corresponding to US Pat. No. 4,848,919).
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Description
Die Erfindung betrifft einen Mischer nach dem Oberbegriff des Anspruches 1.The invention relates to a mixer according to the preamble of claim 1.
Derartige Mischer, die mit einer Zerkleinerungs-Einrichtung versehen werden, werden oft zum Mischen von Stoffen eingesetzt, von denen zumindest ein Teil besonders aggressiv, gesundheitsgefährdend oder auf andere Weise nicht umweltverträglich ist. Grundsätzlich besteht die Gefahr, daß an den die Behälterwand des Mischers oder Misch-Reaktors durchsetzenden Wellen der Zerkleinerungs-Einrichtungen derartige gefährliche Stoffe nach außen gelangen. Um dies zu vermeiden, sind Radialdichtringe, einfach wirkende Gleitring-Dichtungen oder doppelt wirkende Gleitring-Dichtungen eingesetzt worden, die aber den Nachteil haben, daß sie bei einem Ausfall einen Austritt der im Mischer befindlichen Stoffe nach außen nicht mehr verhindern. Auch wenn doppelt wirkende Gleitring-Dichtungen eingesetzt werden, kann es beim Ausfall der atmospährenseitigen Dichtung vorkommen, daß die Sperrflüssigkeit austritt, die selber nicht umweltverträglich sein muß, was dann wiederum auch den Austritt von im Mischer behandelten Stoffen zuläßt.Such mixers, which are provided with a comminution device, are often used to mix substances, at least some of which are particularly aggressive, hazardous to health or otherwise not environmentally compatible. In principle, there is a risk that such dangerous substances can escape to the outside of the shafts of the comminution devices that pass through the container wall of the mixer or mixing reactor. To avoid this, radial sealing rings, single-acting mechanical seals or double-acting mechanical seals have been used, but they have the disadvantage that, in the event of a failure, they no longer prevent the substances in the mixer from escaping to the outside. Even if double-acting mechanical seals are used, if the seal on the atmosphere side fails, the barrier liquid may escape, which itself does not have to be environmentally friendly, which in turn also allows substances treated in the mixer to escape.
Aus der EP-A-0 408 093 ist eine Magnetkupplung bekannt, die zum Antrieb einer in einem Behälter befindlichen Rühreinrichtung dient. Zwischen dem außerhalb des Behälters befindlichen Antriebsmotor und der die Behälterwand durchsetzenden Welle des Rührers ist eine Magnet-Kupplung vorgesehen, die einen mit der Abtriebswelle des Motors gekoppelten, an einer Innenwand mit Permanentmagneten versehenen Treibkopf und einen in diesem Treibkopf angeordneten Läufer aufweist, der auf einer Außenseite mit den Permanentmagneten des Treibkopfes zugeordneten Permanentmagneten versehen ist und der mit einer mit dem Arbeitskopf gekoppelten Kupplungs-Abtriebswelle drehfest verbunden ist. Es ist ein einen Luftspalt zwischen den Permanentmagneten durchsetzender, den Läufer gas- und flüssigkeitsdicht umgebender Spalttopf vorgesehen. Die den Rührer tragenden, die Behälterwand durchsetzende Welle ist in einer Lagerbüchse gelagert.From EP-A-0 408 093 a magnetic coupling is known which serves to drive a stirring device located in a container. Between the drive motor located outside the container and the shaft of the stirrer passing through the container wall, a magnetic coupling is provided which has a drive head coupled to the output shaft of the motor and provided with permanent magnets on an inner wall and a rotor arranged in this drive head, which is mounted on a The outside is provided with permanent magnets assigned to the permanent magnets of the driving head and is connected in a rotationally fixed manner to a clutch output shaft coupled to the working head. There is an air gap between the canister penetrating the permanent magnet and surrounding the rotor in a gas- and liquid-tight manner. The shaft carrying the stirrer and passing through the container wall is mounted in a bearing bush.
Eine ähnliche Rühreinrichtung ist aus EP-A-0 433 694 bekannt.A similar stirring device is known from EP-A-0 433 694.
Der Erfindung liegt die Aufgabe zugrunde, einen Mischer der gattungsgemäßen Art so auszugestalten, daß ein Austritt von im Mischer behandelten Stoffen durch die Ausnehmung, die die zum Arbeitskopf führende Welle der Zerkleinerungs-Einrichtung aufnimmt, zuverlässig vermieden wird.The invention has for its object to design a mixer of the generic type so that leakage of substances treated in the mixer through the recess that receives the shaft leading to the working head of the shredding device is reliably avoided.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale im Kennzeichnungsteil des Anspruches 1 gelöst. Durch die Magnet-Kupplung in Verbindung mit dem Spalttopf wird erreicht, daß die Ausnehmung in der Behälterwand in einen geschlossenen Raum, nämlich den Innenraum des Spalttopfes mündet, der nach außen völlig abgedichtet ist. Durch die Ausgestaltung der Gleitring-Dichtung und die Führung der Sperrflüssigkeit wird erreicht, daß die Wärme, die durch Reibung und Wirbelströme entsteht, aus dem Innenraum des Spalttopfes abgeführt wird, wobei diese Sperrflüssigkeit gleichzeitig zum Schmieren des Lagers herangezogen wird, in dem der Läufer der Magnet-Kupplung gelagert ist.This object is achieved by the features in the characterizing part of claim 1. The magnetic coupling in connection with the containment shell ensures that the recess in the container wall opens into a closed space, namely the interior of the containment shell, which is completely sealed off from the outside. The design of the mechanical seal and the leadership of the barrier fluid ensures that the heat caused by friction and eddy currents is removed from the interior of the containment shell, this barrier fluid is simultaneously used to lubricate the bearing in which the rotor of the Magnetic clutch is mounted.
Die Unteransprüche geben vorteilhafte Ausgestaltungen der Erfindung wieder.The sub-claims reflect advantageous embodiments of the invention.
Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispieles anhand der Zeichnung, die im Längsschnitt einen Teil eines Mischers mit einer Zerkleinerungs-Einrichtung zeigt.Further features, details and advantages of the invention result from the following description of an exemplary embodiment with reference to the drawing, which shows in longitudinal section part of a mixer with a comminution device.
In der Zeichnung links ist eine zylindrische Behälterwand 1 eines Mischers bzw. Misch-Reaktors 2 dargestellt, in dessen Innenraum 3 ein nicht dargestelltes, drehantreibbares Mischwerk angeordnet ist. An der Behälterwand 1 ist eine Zerkleinerungs-Einrichtung 4 angebracht, deren Arbeitskopf 5 im Innenraum 3 angeordnet ist, um dort Mischgut-Agglomerate zu zerteilen, Mischgut zu scheren, zu homogenisieren oder das Mischgut auf andere Weise einer intensiven mechanischen Behandlung zu unterziehen. Derartige Mischer bzw. Misch-Reaktoren sind allgemein bekannt, beispielsweise aus der DE 38 39 671 A1 (entsprechend US-Patent 5 018 673).In the drawing on the left, a cylindrical container wall 1 of a mixer or mixing reactor 2 is shown, in the
Die Zerkleinerungs-Einrichtung 4 weist einen Elektro-Motor 6 auf, der über ein Traggerüst 7 auf einer Grundplatte 8 abgestützt ist, die an der Behälterwand 1 angebracht ist. Zwischen dem Motor 6 und dem Arbeitskopf 5 ist eine Magnet-Kupplung 9 vorgesehen, die innerhalb des Traggerüstes 7 angeordnet ist. Die Magnet-Kupplung 9 weist einen mit der Abtriebswelle 10 des Motors 6 drehfest verbundenen topfförmigen Treib-Kopf 11 auf, an dessen zylindrischer Innenwand 12 konzentrisch zur gemeinsamen Achse 13 von Motor 6, Kupplung 9 und Arbeitskopf 5 Permanentmagnete 14 angebracht sind, und zwar über den Innenumfang der Innenwand 12.The
Der Arbeitskopf 5 ist mit einer Kupplungs-Abtriebswelle 15 drehfest verbunden, die die Behälterwand 1 bzw. die Grundplatte 8 durchsetzt. Sie ist auf der Außenseite des Mischers 2 in einem Lager 16 um die Achse 13 frei drehbar gelagert. Das Lager 16 weist einen mit der Grundplatte 8 verbundenen Lagerbock 17 auf, der mit einer keramischen Gleitlager-Schale 18 versehen ist. Auf der Abtriebswelle 15 ist eine Lagerhülse 19 drehfest angebracht, die in der Schale 18 drehbar angeordnet ist. Den Enden der Lagerhülse 19 sind noch Axial-Lagerringe 20 zugeordnet, die sich gegen entsprechende Lagerflächen 21 der Gleitlager-Schale 18 abstützen, wodurch die Abtriebswelle 15 einerseits frei drehbar und andererseits Axial unverschiebbar im ortsfesten Lagerbock 17 gelagert ist. Am außenliegenden freien Ende der Abtriebswelle 15 ist drehfest ein ebenfalls topfförmiger Läufer 22 angebracht, auf dessen zylindrischer Außenwand 22a Permanentmagnete 23 angeordnet sind, die konzentrisch zur Achse 13 und - bezogen auf die Richtung der Achse 13 - mit den Permanentmagneten 14 überdeckend angeordnet sind. Auch diese Permanentmagnete 23 sind über den Umfang des Läufers 22 verteilt angeordnet. Sie sind jeweils gegenpolig zu den Permanentmagneten 14 angeordnet. Zwischen den Permanentmagneten 14 und den Permanentmagneten 23 ist ein Luftspalt 24 ausgebildet, dessen Erstreckung radial zu Achse 13 grundsätzlich möglichst gering sein sollte, um die magnetische Kupplung zwischen den Permanentmagneten 14 und den Permanentmagneten 23 möglichst groß zu machen.The working
Es ist ein Spalttopf 25 vorgesehen, dessen zylindrische Wand 26 den Luftspalt 24 durchsetzt und dessen einstückig mit der Wand 26 ausgebildeter Boden 27 zwischen dem Boden 28 des Treibkopfes 11 und dem Boden 29 des Läufers 22 sich befindet. An seinem der Grundplatte 8 zugewandten offenen Ende ist der Spalttopf 25 mit einem Flansch 30 versehen und mittels einer Dichtung 31 abgedichtet mit der Grundplatte 8 gas- und flüssigkeitsdicht verschraubt.A
Die Kupplungs-Abtriebswelle 15 ist in einer die Grundplatte 8 und die Behälterwand 1 durchsetzenden Ausnehmung 32 mittels einer einfach wirkenden Gleitring-Dichtung 33 abgedichtet, die auf ihrer dem Innenraum 34 des Spalttopfes 25 zugewandten Seite an einen Sperrflüssigkeits-Zuführkanal 35 angeschlossen ist. Die Sperrflüssigkeit verhindert einerseits den Austritt von Feststoffen aus dem Innenraum 3 des Mischers 2 in das Lager 16 und erst recht ins Freie. Soweit flüssige oder flüchtige Stoffe im Innenraum des Mischers 2 sind und durch die Gleitring-Dichtung 33 in den Innenraum 34 austreten, werden sie von der Sperrflüssigkeit aufgenommen und von dieser durch einen Sperrflüssigkeits-Abführkanal 36 abgeführt, der aus dem Innenraum 34 des Spalttopfes 25 ausmündet. Dieser Innenraum 34 des Spalttopfes 25 ist also vollständig mit Sperrflüssigkeit gefüllt. Um das Abströmen der Sperrflüssigkeit von der Gleitring-Dichtung 33 in den Innenraum 34 zu erleichtern, ist im Lagerbock 17 mindestens ein Übertritts-Kanal 37 vorgesehen. Die Sperrflüssigkeit kann weiterhin als Schmiermittel im Lager 16 wirken, wozu einerseits der Lagerbock 17 und andererseits die Gleitlager-Schale 18 mit Schmierkanälen 38 versehen sind, die zum Innenraum 34 hin offen sind. Die auch als Schmiermittel wirkende Sperrflüssigkeit muß nicht notwendigerweise Öl sein. Es kann die gleiche Flüssigkeit sein, die im Innenraum 3 des Mischers 2 eingesetzt wird. Falls diese Flüssigkeit aggressiv ist, müssen die im Innenraum 34 befindlichen Teile einschließlich des Spalttopfes 25 aus einem Werkstoff bestehen, der hiergegen resistent ist. Der Sperrflüssigkeits-Zuführkanal 35 und der Sperrflüssigkeits-Abführkanal 36 weisen jeweils auf ihrer Außenseite einen Anschluß 39, 40 auf, an dem eine Sperrflüssigkeits-Zuführleitung 41 bzw. eine Sperrflüssigkeits-Abführleitung 42 angeschlossen sind. Die Sperrflüssigkeits-Abführleitung 42 führt zu einem geschlossenen Behälter 43, aus dem wiederum die Zuführleitung 41 ausmündet. In die Zuführleitung ist eine Pumpe 44 geschaltet. Das Umpumpen der Sperrflüssigkeit in diesem geschlossenen Kreislauf erfolgt also in Richtung 45. Der Druck in diesem Sperrflüssigkeits-Kreislauf kann dem Druck im Innenraum 3 des Mischers bzw. Misch-Reaktors 2 angepaßt werden.The
Der Arbeitskopf 5 weist in bekannter Weise auf das im Innenraum 3 des Mischers 2 befindlichen Ende der Kupplungs-Abtriebswelle 15 aufgespannte Messer 46 auf. Diese Messer sind bekannt, beispielsweise aus der DE 38 39 671 A1 (entsprechend US-Patent 5 018 673). Anstelle solcher Messerköpfe können aber auch sogenannte Rotor-Stator-Systeme vorgesehen sein, wobei dann mit der Abtriebswelle 15 der entsprechende Rotor gekoppelt ist. Derartige Rotor-Stator-Systeme sind beispielsweise aus der EP 0 200 003 A2 (entsprechend US-Patent 4 848 919) bekannt.The working
Claims (5)
- Mixer with a container wall (1) surrounding an internal chamber (3), with a rotatable mixing device arranged in the internal chamber (3) and with a crushing system (4) which has a working head (5) arranged in the internal chamber (3) of the mixer (2) and is rotatably connected to an electric motor (6) arranged outside the internal chamber (3) of the mixer (2), wherein a shaft (15) which is rotationally engaged with the working head (5) and penetrates a recess (32) formed in the container wall (1) and provided with a seal (33) is coupled to an output shaft (10) of the motor (6), characterised in that between the output shaft (10) of the motor (6) and the shaft (15) driving the working head (5) and outside the internal chamber (3) of the mixer (2) there is provided a magnetic clutch (9) having a driving head (11) which is coupled to the output shaft (10) of the motor (6) and is provided with permanent magnets (14) on an internal wall (12) and having a rotor (22) which is arranged in a driving head (11), is provided, on an external wall (22a), with permanent magnets (23) allocated to the permanent magnets (14) of the driving head (11) and is rotationally engaged with a clutch output shaft (15) coupled to the driving head (5), in that a split pot (25) penetrating an air gap (24) between the permanent magnets (14, 23) and surrounding the rotor (22) in a gas-tight and liquid-tight manner is provided, in that the seal located in the recess (32) is designed as a simply acting sliding ring seal (33) which is open toward the internal chamber (34) of the split pot (25) and is connected to a barrier fluid supply duct (35) on its side remote from the internal chamber (3) of the mixer (2) and in that a barrier fluid discharge duct (36) issuing from the internal chamber (34) of the split pot (25) is provided.
- Mixer according to claim 1, characterised in that the rotor (22) with the clutch output shaft (15) is mounted freely rotatably and axially unmovably in a bearing (16) arranged within the split pot (25).
- Mixer according to claim 2, characterised in that the bearing (16) is designed as a sliding bearing.
- Mixer according to claims 1 and 3, characterised in that the sliding faces of the sliding bearing are connected to the internal chamber (34) of the split pot (25) by lubricating ducts (38).
- Mixer according to one of claims 1 to 4, characterised in that the barrier fluid supply duct (35) and the barrier fluid discharge duct (36) are contained in a closed barrier fluid circuit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4310266A DE4310266A1 (en) | 1993-03-30 | 1993-03-30 | mixer |
| DE4310266 | 1993-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0617999A1 EP0617999A1 (en) | 1994-10-05 |
| EP0617999B1 true EP0617999B1 (en) | 1996-12-27 |
Family
ID=6484198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94103364A Expired - Lifetime EP0617999B1 (en) | 1993-03-30 | 1994-03-05 | Mixer with magnetic coupling |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0617999B1 (en) |
| DE (2) | DE4310266A1 (en) |
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| FR2788995B1 (en) * | 1999-01-28 | 2001-04-06 | Mixel | MAGNETICALLY DRIVEN AGITATOR AND METHOD FOR ADJUSTING THE LIMIT TORQUE FOR THE TRANSMISSION OF EFFORT OF SUCH AN AGITATOR |
| FR2779361B1 (en) * | 1998-06-05 | 2000-07-28 | Mixel | MAGNETICALLY DRIVEN AGITATOR |
| DE10318599A1 (en) * | 2003-04-24 | 2004-11-11 | Mavag Verfahrenstechnik Ag | Stirrer for mixing, homogenizing and dispersing |
| US7186018B2 (en) * | 2003-05-07 | 2007-03-06 | Ashland Licensing And Intellectual Property Llc | Fuel processing device having magnetic coupling and method of operating thereof |
| DE102007054233B4 (en) * | 2007-11-12 | 2010-06-10 | Ika-Werke Gmbh & Co. Kg | Device for dispersing or homogenizing |
| WO2014098746A1 (en) * | 2012-12-21 | 2014-06-26 | Cassandra Oil Technology Ab | Gastight reactor comprising rotating crushing means |
| US20150267704A1 (en) * | 2014-03-18 | 2015-09-24 | Fuglesangs Subsea As | Sealed magnetic drive for rotary machine |
| DE102016106363A1 (en) | 2015-04-07 | 2016-10-13 | Bradbury Group Italy S.R.L. | APPARATUS FOR MIXING HIGH PRESSURE POLYOL |
| CN107333504B (en) * | 2017-05-08 | 2019-09-24 | 张凤 | A kind of farming device |
| CN107719617A (en) * | 2017-08-30 | 2018-02-23 | 杭州电子科技大学 | Magnetic coupling component and its magnetic coupling helm |
| IT201800010289A1 (en) * | 2018-11-13 | 2020-05-13 | Tt Italy S P A | Mixing head |
| CN110550710A (en) * | 2019-09-14 | 2019-12-10 | 乐绪枝 | Tap water-disinfectant mixing and purifying device |
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| DE3818890A1 (en) * | 1988-06-03 | 1989-12-07 | Ekato Ind Anlagen Verwalt | ARRANGEMENT FOR SECURELY SEALING THE BEARING OF A ROTATING SHAFT WITH AN RELATED DRIVE ELEMENT |
| DE3831609A1 (en) * | 1988-09-17 | 1990-03-22 | Loedige Maschbau Gmbh Geb | MACHINE FOR TREATING SCHUETTABEIG, PASTOESER AND / OR FLOWABLE GOETER WITH BUILT-IN LOCKING DEVICE |
| SU1653086A1 (en) * | 1989-06-05 | 1991-05-30 | Украинский Научно-Исследовательский И Конструкторский Институт Химического Машиностроения | Magnetic clutch for drive of vertical air-tightened shaft |
| IT1230331B (en) * | 1989-07-12 | 1991-10-18 | Fedegari Autoclavi | IMPROVED MAGNETIC METHOD FOR TRANSMISSION OF MOVEMENT THROUGH WALLS OF CLOSED CONTAINERS OR CONTAINERS. |
| DE3941444C2 (en) * | 1989-12-15 | 1993-12-23 | Klaus Union Armaturen | Permanent magnet drive for a pump, an agitator or a valve |
| DE3942679A1 (en) * | 1989-12-22 | 1991-06-27 | Ekato Ind Anlagen Verwalt | MIXING DEVICE |
| FR2656948B1 (en) * | 1990-01-11 | 1994-02-25 | Sgn Ste Gle Techniques Nles | AGITATOR CONTROL ASSEMBLY, PARTICULARLY FOR A DECANTER MIXER EQUIPPED WITH A NUCLEAR FUEL PROCESSING PLANT. |
-
1993
- 1993-03-30 DE DE4310266A patent/DE4310266A1/en not_active Withdrawn
-
1994
- 1994-03-05 EP EP94103364A patent/EP0617999B1/en not_active Expired - Lifetime
- 1994-03-05 DE DE59401368T patent/DE59401368D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE4310266A1 (en) | 1994-10-06 |
| EP0617999A1 (en) | 1994-10-05 |
| DE59401368D1 (en) | 1997-02-06 |
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