EP0966321B1 - Device for stirring, mixing and agitating liquids, especially also for the purposes of preliminary heating, concentration and centrifuging - Google Patents

Description

The invention relates to a stirring device with the Features of the preamble of claim 1.

Devices for stirring liquids are generally known, where on the surface of a magnetic field generation system containing equipment base a mixing vessel is placed in the liquid to be treated filled and a magnetic stir bar inserted with one of the magnetic field generation systems the rotating magnetic drive field generated by the device base interacts and the liquid stirs.

In certain applications it may be useful which is due to the separate handling of the stir bar and its wetting by the liquid to be treated to avoid resulting difficulties.

From the German utility model G9406450.4 a magnetic stirring device known in a plate-shaped base a number of magnetic field generation systems contains that rotating near the base top Generate magnetic fields. Located on the base top rotating vessels, for example in the shape of Test tubes that have a magnetic organ near their lower end have containing holder, each with a bearing tip against a bearing pan on the base top supports. Near the top of the vessels are rotatably mounted on a carrier, such that by interacting with the magnetic rotating fields the magnetic organs are set in rotation can be. Are the vessels changing Speed or with, for example, periodically changing Direction of rotation driven, so experienced in the vessels filled liquid due to the acting in it Gravity an intimate mixing, because in the treatment vessel liquid in the inside of the vessel wall adhering layers is taken while the Parts of the liquid volume near the axis during rotation stay behind.

It shows that the tip storage of the lower end of the vessel or the one attached to the lower end of the vessel Holder in a bearing recess in a wide speed range a centric course of the vessel in its lower part ensures that the pivot bearing is close the upper end of the vessel because of the comparatively large Diameter of the vessel tends to run rough and that undesirable chatter phenomena occur that can eventually lead to the vessel stopping, when the driving torque of the magnetic field generating system no longer sufficient. A reduction in the bearing clearance the upper pivot bearing prepares because of the diameter tolerances the vessels have difficulty and can ease endangering the entire vessel. Unwanted chatter phenomena are triggered the upper pivot bearing due to small imbalances the centrifugal forces against the outer wall of the vessel against one Point area of the bearing bore is pressed and that Vessel begins to drive under the bearing bore inner wall pass on.

Accordingly, it is an object of the invention to provide a stirring device with the features of the preamble of claim 1 so that the vessel in a wide Speed range a smooth, vibration-free run shows and this property also in a wide range maintains the height of the center of gravity relative to the vessel. In further training, the vascular speed range should can be expanded to over 8000 1 / min.

This object is achieved by the characterizing Features of claim 1 solved.

In a special embodiment of the stirring device becomes the coupling between those of the magnetic field generation system of the rotating magnetic generated drive means Drive fields and the in the mounting approach of the treatment vessels provided drive part arrangement improved and not just the efficiency of the drive increased, but at the same time a reliable and low-vibration pivot bearing for operation in one wide speed range.

Advantageous refinements and developments are in characterized in the claims subordinate to claim 1, some of which on characteristics of self-employed Meaning are directed to what is further below is pointed out in detail.

It should also be mentioned that sometimes in the drawings only a single one, along a substantially vertical one Axis of symmetry elongated, an upper filling opening Containing vessel for receiving the liquid to be treated is shown, but that all embodiments, as is known per se, a plurality of such in parallel mutually operable vessels and associated magnetic field generation systems contain.

In the case of the stirring devices specified here, they are close the rotating support means provided at the upper end of the vessel a considerable margin to the outer wall of the vessel on, such that the vessels easily into the stirrer used or removed from it can what is done automatically using a manipulator or Robot can happen. Despite this big camp game effect the centering and stabilizing agents a reliable Damping vibrations and chatter when the vessels run in a wide speed range and also in cases where the center of gravity of vessel and filling is relatively high.

Fig. 1 eine schematische Abbildung einer Rühreinrichtung der hier angegebenen Art.

Fig. 2 eine teilweise im Schnitt gezeichnete Seitenansicht einer praktischen Ausführungsform einer Rühreinrichtung unter schematischer Angabe der Antriebsmittel,

Fig. 3 bis 6 jeweils den oberen Teil eines Gefäßes, der zugehörigen Drehhalterungsmittel und der Zentrier- und Stabilisiermittel in gegenüber Fig. 2 abgewandelten Ausführungsformen,

Fig. 7 eine im Schnitt gezeichnete Seitenansicht einer abgewandelten Ausführungsform einer Rühreinrichtung der hier angegebenen Art mit einem nahe dem oberen Gefäßende vorgesehenen Antrieb, der sich gegen die Gerätebasis abstützt,

Fig. 8 eine im Schnitt gezeichnete Ansicht einer gegenüber Fig. 11 abgewandelten Ausführungsform mit nahe den oberen Gefäßenden befindlichen Antriebsmitteln, die von der Gerätebasis unabhängig gehaltert sind,

Fig. 9 eine Aufsicht auf die Polschuhanordnung des elektromagnetischen Antriebs der Einrichtung nach Fig. 12,

Fig. 10 eine perspektivische Ansicht eines Magnetrings, der sich in einem auf die Gefäßmündung aufgesetzten Stopfen befindet und mit den Polschuhen zusammenwirkt,

Fig. 11 eine im Schnitt gezeichnete Ansicht des oberen Teiles eines Gefäßes, wie es beispielsweise in Einrichtungen nach den Fig. 2 bis 6 verwendbar ist, mit einem eingesetzten Kühler,

Fig. 12 einen Horizontalschnitt durch den Kühlerkopf, der als Lüfterrad ausgebildet ist,

Fig. 13 einen Schnitt durch den unteren Teil einer Rühreinrichtung der hier angegebenen Art mit einem das untere Gefäßende umgebenden Heizer,

Fig. 14 eine teilweise im Schnitt gezeichnete Rühreinrichtung gemäß einer Weiterbildung der Ausführungsform nach Fig. 8 mit mechanischem Zentner- und Stabilisierungsmitteln am unteren Gefäßende und sowohl mechanischen als auch magnetischen Zentrier- und Stabilisierungsmitteln nahe dem oberen Ende des Gefäßes;

Fig. 15 eine teilweise im Schnitt gezeichnete Ansicht des unteren Teils einer weiteren Ausführungsform einer Rühreinrichtung mit in einen Träger eindrückbarem Gefäß;

Fig. 16 bis 18 schematische, im Schnitt gezeichnete Ansichten des unteren Teils abgewandelter Ausführungsformen mit magnetischer Drehhalterung und/oder Antriebsmitteln am unteren Gefäßende bzw. mit ähnlich wie bei der Ausführungsform nach Fig. 15 in einen Träger eindrückbarem Gefäß, wobei der Träger magnetische Zentrier- und Stabilisierungsmittel aufweist, welche zugleich die Antriebsmittel bilden;

Fig. 19 eine teilweise im Schnitt gezeichnete Seitenansicht einer bevorzugten Ausführungsform einer Einrichtung zum Rühren oder Mischen oder Bewegen von Flüssigkeiten der hier angegebenen Art,

Fig. 20 eine schematische perspektivische Ansicht der Kerne, Polschuhe und magnetischen Rückleitungen des Magnetfelderzeugungssystems für eine Einrichtung nach Fig. 19,

Fig. 21 eine schematische, im Schnitt gezeichnete Seitenansicht einer gegenüber Fig. 19 abgewandelten weiteren Ausführungsform einer Einrichtung der hier angegebenen Art, und

Fig. 22 eine schematische, im Schnitt gezeichnete Seitenansicht einer wiederum anderen Ausführungsform, und

Fig. 23 bis 31 teilweise in Schnitt-Seitenansicht und teilweise in Aufsicht gezeigte schematische Abbildungen von weiteren Ausführungsformen bzw. von Teilen solcher Ausführungsformen.

Embodiments are described below with reference to the drawings. Show it:

Fig. 1 is a schematic illustration of a stirring device of the type specified here.

2 is a side view, partly in section, of a practical embodiment of a stirring device with a schematic indication of the drive means,

3 to 6 each the upper part of a vessel, the associated rotary holder means and the centering and stabilizing means in embodiments modified compared to FIG. 2,

7 is a sectional side view of a modified embodiment of a stirring device of the type specified here with a drive provided near the upper end of the vessel, which is supported against the device base,

8 is a sectional view of an embodiment modified from that of FIG. 11 with drive means located near the upper ends of the vessel, which are held independently of the base of the device,

9 is a plan view of the pole shoe arrangement of the electromagnetic drive of the device according to FIG. 12,

10 is a perspective view of a magnetic ring, which is located in a stopper placed on the vessel mouth and interacts with the pole pieces,

11 is a sectional view of the upper part of a vessel, as can be used, for example, in devices according to FIGS. 2 to 6, with an inserted cooler,

12 is a horizontal section through the radiator head, which is designed as a fan wheel,

13 shows a section through the lower part of a stirring device of the type specified here with a heater surrounding the lower end of the vessel,

14 is a partially sectioned stirring device according to a further development of the embodiment according to FIG. 8 with mechanical centering and stabilizing means at the lower end of the vessel and both mechanical and magnetic centering and stabilizing means near the upper end of the vessel;

15 shows a view, partly in section, of the lower part of a further embodiment of a stirring device with a vessel which can be pressed into a carrier;

16 to 18 are schematic, sectional views of the lower part of modified embodiments with magnetic rotary holder and / or drive means at the lower end of the vessel or with a vessel which can be pressed into a carrier similar to the embodiment according to FIG. 15, the carrier being magnetic centering and has stabilizing means which simultaneously form the drive means;

19 is a side view, partly in section, of a preferred embodiment of a device for stirring or mixing or moving liquids of the type specified here,

20 is a schematic perspective view of the cores, pole pieces and magnetic return lines of the magnetic field generation system for a device according to FIG. 19,

FIG. 21 shows a schematic, sectional side view of a further embodiment of a device of the type specified here, modified from FIG. 19, and

22 is a schematic, sectional side view of yet another embodiment, and

23 to 31 are schematic sectional views of further embodiments or parts of such embodiments shown partly in a sectional side view and partly in a top view.

The stirring device shown in Fig. 1 contains as a vessel for taking up a pourable substance, in general a liquid, a test tube 1, which at its lower End a pin-like, integrally molded approach 2 has. There is a magnetic ring 3 on this pin postponed, the diametrically opposite one another Areas is magnetized such that a in Fig. 1st Magnetic field generation system indicated schematically as a block symbol 4, which generates a rotating magnetic field, in interaction with that described in the Way magnetized magnetic ring 3 can occur and together with this drive means, which forms the test tube 1 Rotate around its vertical longitudinal axis.

Vertical support means 5, approximately in the form of a pin 2 support pan or recess take the weight of the vessel and one inside Liquid filling 6 on. In addition, can be close the lower end of the pin 2 lower rotating support means 7 can be provided, which the pin 2 and the lower Provide lateral support at the end of test tube 1.

Near the upper filling opening of the test tube 1 are upper ones Rotary support means 8 for lateral support and Storage of the upper end of the test tube provided. This upper swivel mount means have the shape of a through a plate guided bearing bore, which with its wall the test tube outer wall with a sufficiently large clearance S surrounds, the one provided with the bearing bore Plate on a frame, not shown in Fig. 1 is supported, which in turn is against a device base supports in which the magnetic field generation system Drive means can be accommodated.

It is expressly pointed out here that practical embodiments in the device base Variety of magnetic field generation systems housed can be, the rotating magnetic fields of each Rotary drive of a corresponding variety of test tubes or similar vessels that are suitable in one common frame with bearing holes stored are.

The stirring device specified here also contains Centering and stabilizing means 9, which to a high degree low-friction, vibration-free run of the test tube 1 within the game S of the upper rotating support means and, if necessary, also ensure the lower rotating support means.

The centering and stabilizing agents contain the 1 shows a damping device 10, which, for example, excited vibrations or chatter phenomena within the game S when circulating the test tube 1 immediately subsides.

1 further includes a Treatment device 11 for influencing the room inside the test tube 1 and a further treatment device 12 for influencing the liquid filling 6 through the wall of the test tube 1 from the outside. The treatment device 11 can in the form of an insert on the filling opening of the test tube 1 put on and circulate with it. Despite the resulting upward shift of the Center of gravity of the rotating part of the facility through the centering and stabilizing means 9 a vibration-free and vibration-free running of the rotating Part guaranteed.

The further treatment device 12 is fixed to the frame Device, for example a microwave source, an induction heater, a heater and the like, which in one not by the swivel mount means and the wall area laid in the centering and stabilizing means of the test tube 1 without contact on this and acts on its filling.

Instead of the test tube 1, a metallic one can also be used Vessel or a plastic vessel can be used, whereby lossy wall material, for example induction heating allows.

1 shows a stirring device of the type specified here Type in a very general form are shown in Fig. 2nd to 6 practical embodiments of the upper rotary support means for positioning and guiding the vessel shown, in which the centering and stabilizing agents in this upper swivel bracket are integrated.

In the embodiment of Fig. 2 is above a device base 13, which cooperates with the magnet 3 Contains magnetic field generation systems 4, by means of a frame 14 supported a plate 16 provided with holes 15. The holes 15 are considerably larger Diameter as the outer diameter of the vessels or Test tubes 1 on. Within these holes 15 are Tetrafluoroethylene rings 17 wedge-shaped ring cross-section supported, which with its inner edge, the cutting-like is formed, a very small game S compared to Comply with the outer wall of tubes 1. Between the tetrafluoroethylene rings 17 and the holes 15 of the plate 16 are located damping rings 18 made of flexible material, for example foam plastic or plastic very soft Quality. The tetrafluoroethylene rings 17 form with the damping rings 18 and the upper pivot support means as well as the centering and stabilizing agents vibration-free and not prone to rattling the vessels or test tubes 1 in their area the filling opening, while the in Interlocking pins 2 a precise and represent play-free swivel bracket and at the same time the vertical support means for recording the vessel weight and of the filling weight.

3 looks close to the filling opening the tubes or test tubes 1 from below onto them postponed, adapted to the outer circumference of the vessels Plastic rings 19 in front, which an upper, comparatively large diameter radial flange 19a have which the respective bore 15 of the plate 16th covered and loose on the upper face of an in the bore 15 inserted plastic ring rests. The plastic ring can be used against the central axis of the vessel 1 directed radial flange, which is a sufficient game compared to the cylindrical Adheres to the outer surface of the plastic ring 19. Will the vessel 1 rotated and begins to wobble, see above dampens the sliding friction between the radial flange 19a of the plastic ring 19 and the upward pointing Surfaces of the plate 16 and / or in the holes 15th used ring wobbling and vibrations of the Effective from vessel 1, so that the vessel becomes a centric Run returns.

This principle of centering and stabilizing means shown in FIG. 3 can also be applied to areas near the lower one Use vessel end and is characterized by special Simplicity out.

The plate 16 of the embodiment according to FIG. 4 is made of put together two parts, between the membrane-like Annular disks 21 clamped in the area of the bores 15 are. The radially inner edge of the membrane discs 21 has small distance from the outer wall of the tube or test tube 1 and the waves of the ring cross section result an elastic compliance of the inner edge of the membrane discs 21 against vibrations and shocks, which stimulated during the circulation of the vessel or test tube 1 can be, the washer 21 impact energy and Vibration energy absorbed and damped. Even with the 4 thus form the between the Parts of the plate 16 clamped washers 21 both the upper swivel mounting means as well as the centering and stabilizer for a chatter-free and vibration-free Circulation of the vessels 1 in a wide speed range.

5 contains as centering and Stabilizing agent in the area of the upper end of the vessel 1 inserted into the bores 15 of the plate 16 Ring with one against the upper edge of hole 15 supporting waistband and pointing upwards from it, resilient fingers 21a, which in similar to the washer 21 of the embodiment 4 impact energy and vibration energy beginning wobbling of the vessel 1 during it Absorb and dampen revolution, with centric running of the vessel 1 but essentially out of contact with the outer wall of the vessel 1 remain.

6 shows in the area of the upper end of the vessel 1 provided rotation holder means as well as centering and stabilizing means in the form of a slid onto the vessel Magnetic rings 26 on the one hand and along the edge the bore 15 of the plate 16 in the same circumferential Spaced magnetic rollers or magnetic disks 27 on the other hand. The magnetic ring 26, the liner a resilient plastic ring 28 from below on the Vessel 1 can be pushed on, for example on the side of the upper ring surface due to corresponding Magnetizing a north pole and on the lower one Ring surface a south pole. The magnetic rollers or magnetic disks 27 also have on their upper end faces the North Pole and on its lower faces South Pole, so that by repelling poles of the same name the Clearance between the magnetic ring 26 and the magnetic rollers or magnetic disks 27 is maintained.

It should be noted here that the vessels 1 are all one of the elongated cylindrical shape have a different shape can and that the vessels in the area near the filling opening can have a neck portion of reduced circumference. According to an appropriate shape of the vessels 1 can be close the filling opening with an all-round, wedge-shaped Wall constriction be provided, which is a double Function fulfilled. Firstly, this constriction diminishes in their area the effective vessel circumference and forms the preferred point of attack for the rotating support means, centering and stabilizers, with a greatly reduced Tendency to observe vibrations and chatter phenomena is. On the other hand, the wall constriction with respect to the interior of the vessel the upper end of which runs all around on the inner wall of the vessel Bead represents that when the vessel rotates rapidly rising by the centrifugal forces on the inner wall of the vessel Liquid prevents the fill opening from closing reach and be thrown out of the vessel. If vessels with such a wall constriction, for example used in stirring devices according to FIG. 4 the radial inner edge of the membrane discs 21 not formed continuously but by cutouts interrupted so that from the radially outer edge of the Membrane disks 21 located between the cutouts Extend your fingers radially inwards. This membrane disc finger allow insertion of the vessels, whereby bend the membrane fingers elastically and finally on of the wall constriction snap into it in such a way that the radially inner ends of the membrane fingers then with little Play at the bottom of the wall constriction and the upper rotating support means as well as the centering and Realize stabilizers in the manner described.

It should also be remembered that in FIGS. 2, 4 and 6 only a single vessel is shown, the but with practical stirring devices of the specified here Type the device base with a variety of magnetic field generation systems can then be equipped above a corresponding plurality of vessels 1 on a frame 14 is supported and rotatably supported.

It is now an explanation for the tendency to chatter one upper rotary bracket in stirring devices known Given the type in which the upper swivel bracket has no centering and has stabilizers and over the Game S between the wall of bore 15 and the outer wall of the vessel face 1 rigid materials.

Should the filling of the vessel 1 be unbalanced during whose circulation is a rubbing contact between the Vessel outer wall and the inner wall of the bore 15 (Fig. 2) come about, so causes the circulation of the vessel Braking of the outer wall of the vessel at the point of contact that the Vessel 1 begins to roll on the bore wall, causing the axis of rotation of the vessel 1 at the bottom of the device 1 located support point deflected becomes. However, the gyroscopic forces are at an angle of Effective at 90 ° to the direction of deflection. Reinforce these forces fatally the pressure force at the point of contact and thus the endeavor of the upper part of the Vessel 1 to roll on the inner wall of the bore 15. So there is a rapid rocking of the chatter effect. Centering and stabilizing agents specified here Kind prevent this effect.

Another possibility not shown in the drawing to mitigate the chatter effect is upper Rotary mounting means in the form of each in the mouth of the vessel 1 reaching bearing pin, which can be anchored to a plate. This Bearing journals have a peripheral bead at their lower end provided with an annular surface of the largest diameter small distance from the inner wall of the upper Part of the vessel 1 has. Is it due to an imbalance the filling of the vessel 1 to a contact between the Peripheral bead of the bearing journal on the one hand and the inner wall of the vessel, so occur when the vessel 1 rotates Deflections of the axis of rotation of the vessel 1 and the same Gyroscopic forces as previously described. Latter however, do not increase the pressure force here, but causes the inner wall of the vessel 1 is lifted off the peripheral bead of the journal. A such a rotary holder of a stirring device here proposed type thus forms centering and Stabilizing agent for a chatter-free upper storage of the Vessel 1.

An application, also not shown, of the one just explained The principle of vessels 1 is that on their upper one Filling opening have a folded collar, under which a tubular extension engages from the edge of the hole 15 of the plate 16 (Fig. 2) rises. Comes the outside surface of the tubular extension with the inner surface of the folded collar on the outer surface of the tubular Approach to gyroscopic forces covering the surfaces mentioned out of touch again.

The application of the principle described above to the lower rotating holder means of a vessel can be in the Way that a cylindrical on the lower end of the vessel Sleeve is slid into place by the device base extends from a bearing journal attached to it, which is provided with an upper peripheral bead. This peripheral bead interacts with the inner wall of the sleeve quite appropriately together as to this the upper swivel bracket has been described above.

In addition, the upper end face of the trunnion also the vertical support means for absorbing the weight form the vessel 1 and its filling.

While in the previously described embodiments the drive for the vessels 1 is provided near their lower end was in the embodiment according to FIG. 7 this Drive provided in the area of the filling opening of the vessels 1. The magnetic field generation system contains one part the device base 13 forming yoke plate 36, of this towering cores 37, provided at their upper ends Excitation coils 38 and finally at the upper ends of the Cores 37 attached pole plates 39 with vertically upwards curved pole pieces 40. The shape of the pole plates 39 can be seen, for example, from FIG. 9.

In the filling opening of the vessels 1 is one with an access opening provided cover part 41 used in the A magnetic ring 42 is embedded in the flange. Fig. 10 reveals the shape of this magnetic ring. Its after end face facing down has one in half South Pole and in the other half a North Pole. The in the position of use upper part of the magnetic ring, which in 10, designated 43, forms a magnetic Yoke. The magnetic ring 42 has such a diameter that its lower end face approximately in the vertical direction the pole pieces 40 of the pole plates 39 are aligned.

The magnetic ring 42 is in operation when the coils are excited 38, four of which are arranged around the vessel 1, attracted to the pole pieces 40 and also by the magnetic rotating field prevailing between the pole pieces 40 rotated so that the cover part 41st and turn the vessel 1. The attraction of the magnetic ring 42 in the direction of the pole shoes 40 causes the vessel 1 with its lower, approximately hemispherical end in a corresponding Bearing depression 44 of the device base pressed in becomes.

If an imbalance occurs in the vessel 1, which is the longitudinal axis of the vessel around the point of contact between the vessel and the trough 44 tries to pivot, so remove the end faces of the pole shoes 40 on the one hand and the lower end face of the magnetic ring 42 from each other lateral direction, the attraction between said parts, the vessel 1 and the lid part 41 withdrawn into the symmetrical position shown in FIG. 7.

FIG. 8 shows an embodiment modified compared to FIG. 7 a stirring device of the type specified here, where the cores of the magnetic field generation system are not are connected to the device base 13 but by one provided with holes for the passage of the vessels 1 Yoke plate 36, which is relatively small Distance below the pole plates 39 is provided, such that the excitation windings 38, the cores 37, the Yoke plate 36 and the pole plates 39 a plate-like Represent structures that are at the level of the upper Part of the vessel 1 is located together with the vessels 1 can be lifted off the device base 13. On Frame for supporting the magnetic field generation system or the magnetic field generation systems during operation at a suitable distance from the lower end face of the Magnet rings 42 is shown in Fig. 8 for ease of illustration omitted in a practical embodiment however provided of course.

The embodiment according to FIG. 8 is particularly well suited for stirring devices of the type specified here, in which the vessels during the stirring treatment of their liquid filling kept in a cooling bath or in a heating bath should be. Is for this purpose above the device base and below the top Rotary mounting means as well as the centering and stabilizing means containing plate-like structures in FIG. 8 Liquid tank indicated by dash-dotted lines T.

11 shows a treatment device 11 in the form a cooling head, which is inserted into the mouth of a vessel 1 is part of a stirring device for example can be according to one of FIGS. 1 to 6. The Cooling head contains one made of a good heat conductive material manufactured, finned heat exchanger body 47 and one screwed to it, over the access opening of the vessel 1 located fan 48, which is in a horizontal Section has the shape recognizable from FIG. 12. The fan wheel 48 is also made of good heat conductivity Material. The hub of the fan wheel 48 and the connection projection of the heat exchanger body 47 support each via sealing rings 49 and 50 on the inner wall of the Neck of the vessel 1. A central axial bore extends itself through the heat exchanger body 47 as also through the hub of the fan wheel 48. Between the hub of the fan wheel and the heat exchanger body 47 is as Chamber 51 for bubble and condensate trap is provided, the channels going down and up 52 of the heat exchanger body with the interior of the vessel 1 communicates. During the circulation of the vessel 1 and the cooling head promote the wings 53 of the fan wheel 48 Cooling air radially outwards and effect heat dissipation from the heat exchange body 47. The resulting in the radially inner area of the fan wheel Negative pressure can condensate via the axial channel of the heat sink suck into chamber 51. However, there is the condensate flung radially outwards and passes over the channels 52 back into the interior of the vessel 1.

The specified with a stirring device of the present Specified centering and stabilization of the bearing the vessel 1 enables the attachment of treatment facilities 11 according to the type of cooling head according to the 11 and 12, with the focus of the rotating Furnishing parts is relatively high. Nevertheless the device shows a smooth running over a large Speed range.

13 shows an example of a further treatment device 12 in the form of a the lower part of the vessel 1 surrounding heater 54. The heater is in the form of a cylindrical jacket on the top of the device base 13 attached. Because of the good centering and stabilization the rotation of the vessels 1, the heater 54 enclose the outer surface of the vessel 1 at a short distance and therefore unfolds when treating the contents of the vessel increased effectiveness.

A cooling head of the type shown in Fig. 11 is connected with another treatment facility in shape of a heater according to FIG. 13 is used to be treated Liquid in the vessel 1 in the lower one Evaporated area and in the upper area on the heat exchanger body 47 condensed again so that it was inside of the vessel in addition to that caused by the vessel rotation caused stirring effects to a cycle in vertical Direction is coming.

It should be noted here that the change of direction and the change in speed in all the embodiments shown for influencing the mixing result of stirring devices of the type specified here is significant. For this reason, treatment facilities 11 independent of the direction of rotation his.

14 has a base plate 191, which are provided with cylindrical openings 192 is. A plug is in each opening 192 from below 193 inserted, the one pointing upwards Provide surface with a flat bearing shell 194 which is together with the spherical lower end of the Vertical support means 195 for a liquid to be treated forms and low centering forces exerts on the lower end of the vessel 195.

A single elastic protrudes from the plug 193 Bridge 196 up to one of the vessel walls in her already encompassing essentially the cylindrical area, slotted ring 197, which is used in the case of a Start-up of the vessel 195 in the event of vibrations and chatter the vertical support means gently the vessel and to reduce vibration back to the central position. Surprisingly, it turns out that even at high vessel speeds of up to over 8000 1 / min. the centering and stabilizing means in the form of the held over the stopper 193 by means of the individual web 196, slotted ring 197, which like the called web and the plug made of tough elastic plastic can be made, the lower end of the vessel centrally hold and allow that when ramping up the speed Resonance areas in which vibrations can occur can be driven through without difficulty.

Above the base plate 191 is indicated schematically by means of Frame parts or supports 198 a plate assembly 199 held an upper, each with a breakthrough for the passage of the vessel 195 and one placed thereon Ferromagnetic yoke plate provided with lid in 1910 1911, a lower pole shoe arrangement 1912 around the respective Breakthrough of grouped pole pieces, between the yoke plate 1911 and the pole shoe arrangement 1912 themselves extending pole cores 1913 and surrounding them Contains excitation coils 1914. The excitation coils are 1914 by an electrical not shown in the drawing Control device so excited that it extends upwards cranked to the openings of the plate assembly 199 pole pieces of the lower pole shoe arrangement grouped around 1912 forms a rotating magnetic field.

The lid 1910 placed on the upper end of the vessel reaches into the mouth with a tubular extension in 1916 of the vessel 195, the tubular extension 1916 bevelled at the lower end towards the wall of the vessel 195 and a partial closure of the upper vascular mouth trains in such a way that the high speed of the Vessel 195 pushed up by centrifugal forces Liquid filling is retained in the vessel and is not thrown out of the mouth of the opening.

Outside the lid 1910 extends axially along the vessel wall down and is at its bottom with one of the flange 1917 spacing flange, in which is embedded in a magnet system ring 1918. Training of the magnet system ring 1918 is as based on 10 explained above. It contains an upper yoke ring made of ferromagnetic material and from below axially attached, circular sector shaped ferrite magnets, which are axially polarized.

The magnet system ring 1918 pulls the arrangement out of the vessel 195 and the cover 1910 in the direction of each Breakthrough of plate arrangement 199 surrounding each circular sector-shaped pole pieces 1915. It holds thereby lowering the bottom of the vessel 195 against the flat one Bearing pan 194 pressed and exercises on the upper end of the vessel at the same time a centering effect, since every deviation of the Longitudinal axis of the vessel from the vertical position causes the end face of the ferrite magnets on a circular arc the point of contact of the lower end of the vessel on the bearing pan 194 move, moving away from the end faces remove the pole pieces in 1915, resulting in objectionable Straightening forces to restore vertical position of the vessel 195 leads. When generating a rapidly rotating magnetic rotating field becomes the magnet system ring Taken from this rotating field in 1918 and thereby displaced the vessel 195 and the lid 1910 in appropriate rotation.

Each of the openings in the plate arrangement 199 is included one piece to an upper plastic cover 1922 the lining 1923 attached to the plate arrangement, which together with the 1922 cover the in the Plate arrangement 199 located drive means from environmental influences protects. From the sufficient distance holding the vessel 195 and the surfaces of the lid 1910 Lining 1923 protrudes from a peripheral flange 1924 upwards, which with the inner surface of the flange 1917 of the Cover 1910 as an emergency camp and additional centering device cooperates, starting the rotating flange 1917 with its inner surface against the outer surface of the flange in 1924 and a beginning rolling away parts just mentioned in connection with chatter phenomena with gyroscopic forces from the vessel 195 and the Cover formed in 1910 unit causes the Flange 1924 and flange 1917 out of contact again come and chatter subsides.

Other centering and stabilizing agents are on the respective upper mouth of the opening of the plate arrangement 199 in the form of a resilient plastic ring 1925 provided that in the upper estuary the lining is used in 1923 and with a damping Inner flange at the beginning of eccentric circulation of the lid 1910 and the upper end of the vessel the centric Situation restored.

In a modification of the embodiment of FIG. 14, the Rotary drive for the vessel 195 and the lid 1910 not by a magnetic field generation system located near the upper end of the vessel but rather through near the lower one Vessel end located drive means reached, so can nevertheless magnetic centering and stabilizing agents provided using the cover 1910 according to FIG. 14 his. In this case, instead of the pole pieces, about the respective breakthrough of a column 198 supported plate arrangement are located in the lower Part embedded a ferromagnetic counter ring, such that in any case the vessel and the lid again through pulled the magnet system ring 1918 against the bearing pan 194 and the previously mentioned centering effect is achieved becomes.

In the lower area shown schematically 15 are the vertical support means and rotating support means formed on a bracket 1927, the one in an upper section a recording room to accommodate the lower end of the vessel 195, has elastic fingers 1928, with locking cams Compress in recesses in 1929 in 1930 when the receptacle 195 in the carrier 197 is pressed. The rest troughs 1930 in the wall of the vessel 195 have the additional advantage that they have increased mechanical coupling between the Vessel 195 and the liquid to be treated and thus bring about an increased mixing of the same.

In its lower section, the carrier is 1927 with a provided axially upward bore 1931, the upper shot is designed as a bearing pan in 1932. The curvature of the bearing pan in 1932 can be proportionate be flat. Against the bearing pan 1932 is in 15 as shown in Fig. Resiliently a journal Pressed in 1933, the concentric in the breakthrough 192 of the base plate 191 rises and together with the bearing pan 1932 of the beam 1927 the vertical support means forms for the vessel 195, which, moreover, at its upper 14 in the manner shown in FIG. centered, vibration-damped and driven.

As a centering and stabilizing means in the embodiment 15 in the opening 192 of the base plate 191 in turn a plug 193 inserted over which is centered by resilient webs 196 and damping ring 197 is held, which is the cylindrical Outer wall of the lower section of the beam in 1927 comparatively little play surrounds and the carrier 1927 and thus the lower end of the vessel 195 when it occurs of vibrations returns to a central position.

To push the vessel into the space between the 1928 fingers the bearing construction from the bearing journal 1933 and the bearing pan 1932 is not to be damaged made sure that the bearing journal during this process 1933 backs down until the lower end of the carrier 1927 against the plug 193, which on the Base plate 191 can be attached, starts, after which now indented vessel 195 on the carrier 1927 the bearing journal In 1933, the entire arrangement was returned to that shown in FIG. 15 shown position pushed up.

The vessel 195 is released from the clamping between the fingers Subtracted in 1928, a radial flange causes 1934 of the carrier 1927, that the carrier by tarnishing the radial flange 1934 against one on the mouth of the breakthrough 192 of the base plate reaching cover plate 1935 is retained and not separated from the base plate 191 becomes.

The embodiment according to FIG. 16 contains vertical support means similar to the embodiment according to FIG. 14 a flat bearing pan 194 that matches the spherical lower one End of the vessel 195 cooperates as storage and on an approximately cylindrical protruding from the base plate 191 Body 1936 is provided.

With the base plate 191 is as by dash-dotted lines Lines 1937 in Fig. 16 is indicated schematically, one Unit connected in 1938, the one on its top Yoke plate 1939 made of ferromagnetic material, which each have a breakthrough for the passage of the lower end of the vessel 195 towards the bearing pan 194 is provided. The breakthrough of the yoke plate in 1939 shows an all-round, upward-facing flange on which a 1918 magnetic system ring in connection With. Fig. 14 described type. This magnet system ring 1918 is a 1940 tough elastic ring Plastic embedded on the lower end the vessel 195 is pushed on. The vessel is in operation 195 of the ring 1940 due to the interaction. between the magnet system ring 1918 and that as ferromagnetic Counter ring acting circumferential flange of the ferromagnetic 1939 yoke plate down against the bearing pan 194 pulled and at the same time the lower end of the vessel due to the interaction between the magnet system ring 1918 and the aforementioned as a ferromagnetic counter ring serving part of the yoke plate centered in 1939. It it should be mentioned here that the 195 of the embodiment shown in FIG. 16, Centering and stabilizing means on the frame side sufficiently large diameter of the respective openings have to remove the vessel 195 together with the To enable ring 1940 from the stirring device.

The design unit connected to the base plate 191 1938 contains on the bottom the ferromagnetic 1939 yoke plate 1941 cylinder and guided therein Piston 1942, which on the underside by pressure medium sources Pressurized in 1943 and against spring force can be moved upwards so that one with each a cylindrical tube extension 1944 provided plate 1945 axially upwards and when the Pistons 1942 are lowered again by the spring means can.

The pipe neck 1944 assigned to each vessel 195 has slightly larger diameter than the cylindrical one Part of the wall of the vessel 195, such that in the raised Condition of the plate in 1945 and the pipe socket in 1944 on the inner wall the latter in particular if this with is provided with a bump indicated in FIG. 16, the lower end of the vessel 195 causes rattling what to carry out particularly intensive mixing processes in the liquid to be treated within the vessel 195 is very beneficial. The deliberate stimulation of chatter phenomena is independent for predetermined operating sections of the speed of the vessel 195 of independent Importance. It is expressly pointed out here that the mechanism for lifting the plate in 1945 and the pipe socket 1944 is only described as an example and that many other mechanisms here are arbitrary and reproducible triggering of chatter phenomena can be provided. It is essential that a proportionate more rigidly held against the frame Ring body in a section of the outer wall of the vessel 195 is moved, in which the annular body has a small radial distance of the outer wall of the vessel, so that this in Operation essentially instantly in contact with reaches the ring body and then triggers chatter movements, which is undesirable in other operating modes and phases are.

The embodiment according to FIG. 17 contains vertical support means one of one not shown in FIG. 17 Base upright plug or base 193 with flat Surface on which the lower, dome-like end of the Vessel 125 sits. One on the serves for centering Plug or base 93 vertically guided ring 197, the with very little force thanks to a wrapping coil spring 196a is pressed against the lower end of the vessel and when the vessel rotates it centers and vibrates effectively dampens. Near the top of the Vessel 105 is in the manner shown with a all around running constriction, which, how previously mentioned, as protection against leakage of liquid thrown up by horizontal forces can serve. Below this, the vessel 105 has an all around ongoing bulge, so that a paragraph is formed, against which there is an annular body made of plastic 1918a supports the top of the mouth of the vessel 195 is pushed on and the one magnet system ring 1918 contains, the structure of which previously for the magnet system ring 42nd has been described with reference to FIG. 10. Below of the magnet system ring 1918 and this axially opposite is in a plate-like, frame-fixed Arrangement of a magnetic field generation system, wherein the pole pieces 1912 bent up with their free ends are similar, as is the case for the embodiment according to FIG. 8 has been described. The breakthrough between the pole pieces and in one belonging to the magnetic field generation system Yoke plate is lined with a plastic sleeve, which into an opening in the magnetic field generation system overlapping plate made of stainless steel is. The recognizes details in this regard One skilled in the art readily from FIG. 17.

An essential part here is in the ring body 1918a as well as the magnet system ring embedded in 1918 Shielding ring 1918b made of ferromagnetic material, which has the task of the magnet system ring 1918 intensive stray fields from neighboring to the vessel 195 identical vessels and magnet system rings shield so that it is in a matrix arrangement Magnetic field generation systems and associated vessels these do not influence each other and are reliable circulate synchronously with that magnetic rotating field, that of the magnetic field generation system associated with the vessel in question is excited.

Fig. 18 shows an embodiment of the lower part of a Stirring device of the type specified here, in which 15 a carrier 1927 similar to the embodiment according to FIG. 15 made of tough elastic plastic with each at the upper end 1929 is provided with locking cams 1929, between which is a receptacle 195 with recessed recesses in 1930 can be snapped into place with its lower end.

In this embodiment, drive means are similar 14 in the region of the lower end of the vessel 195 provided. In particular, protrudes from the base plate 191 a spring-loaded bearing journal in 1933 axially upward in a bore 1931 in the lower section of the carrier 1927, the bore 1931 through one co-operating with the tip of the trunnion in 1933 Bearing pan is completed in 1932.

At the lower end of the section provided with the 1931 bore of the carrier 1927 is a magnet system ring in the carrier Embedded in 1918. The lower face of the Magnetic system ring 1918 opposite with a certain vertical distance are in a circular arrangement circular sector-shaped pole pieces 1915 of the pole pieces Magnetic field generation system for generating a Magnetic generated over the end faces of the pole pieces 1915 Rotating field around that occupied by the bearer in 1927 Has space around excitation coils 1914, which between the pole shoes 1912 and a ferromagnetic yoke plate Pole cores arranged in 1911 surround it, similar to this described in connection with the embodiment of FIG. 14 was, however, in the embodiment 18, as already mentioned, the drive system installed here near the bottom of the vessel 195 is.

What is remarkable in the embodiment according to FIG. 18 is that the annular arrangement of the end faces of the 1915 pole pieces has a larger diameter than the one above circular arrangement of the end face of the Magnetic system ring 1918, which ensures that always then when the carrier in 1927, for example with separated Vessel 195 to the point of contact between the trunnion 1933 and the pan in 1932, essential areas of the opposing End faces of the magnet system ring 1918 on the one hand and the pole piece assembly 1915 on the other hand and thus there are directives that the Beam in 1927 relative to the fixed construction of the base plate 191 again.

The radial flange 1934 of the carrier 1927 according to FIG. 18 acts with the frame-fixed, over the yoke plates 1911 plate 1935 together in the same way as this has already been described for the embodiment of FIG. 15 has been. The same applies to the resilient support of the trunnion in 1933.

It is stated here without a graphic representation in which way to be treated in the respective vessel 5 Liquid heat can be added when the stirrer specified here operated in a vacuum chamber becomes. Because of the essentially contactless working Swivel mount, centering and stabilization a stirring device of the type specified here can be a heat transfer to which the liquid to be treated contained vessel only by radiation and residual convection respectively.

Heat is transported from the base plate, for example by piping into the pintle and then by radiation and residual convection to the carrier and from finally over the wall of the vessel into the treating liquid.

In another embodiment, those are by radiation and residual convection heat-transferring, facing each other Areas on the side of the heated base plate and on the side of the beam through in cross section comb-like interlocking, coaxial Sleeve parts enlarged.

This increase in area can also be achieved by the carrier radially projecting washers and correspondingly radial fixed ring washers projecting inwards, the latter are designed for assembly in a split arrangement, can be achieved.

It should be mentioned here again that the specified construction Vessel speeds up to over 8000 1 / min. allowed such high speeds towards the one to be treated Accelerating forces acting more than liquid lead to 500 times the acceleration of gravity. These acceleration forces effectively prevent foaming and significantly affect the outcome of the treatment. Significant is also that the high speed of the vessel or the vessels cause them to support themselves at points at its lower end or near its lower End behave like very stable gyros, which of the Centering and stabilizing agents specified here only through gentle correction movements in their stable Hold vertical position, where appropriate Swinging movements occurring extremely quickly can be made to subside.

The invention also includes embodiments of those described Kind in which in the respective vessels, which out Plastic or glass or stainless steel can be used, insert containers to absorb the liquid to be treated are used such that the vessels 5 in such Embodiments form an integral part of the facility.

The device shown in Fig. 19 includes a base plate 161 on which a device base is supported by feet 163 is.

A magnetic field generation system is located in the device base 162 164, whose excitation coils 165 via a cable 166 are connected to a control device by means of which the excitation coils 165 in such a way with electrical Current can be applied to the magnetic field generation system in a certain area dr Device base 162 an intense rotating magnetic Can generate drive oil, its speed and Direction of rotation arbitrarily adjustable or changeable is.

Magnetic field generation system 164 is within the device base 162 cast in plastic, for example and contains the cores surrounded by the excitation coils 165 16, a magnetic provided with an opening 168 Yoke plate 169 and at the upper ends of the cores 167 attached to one with the opening 168 vertical aligned breakthrough 1610 grouped pole pieces 1611, as can be seen in detail from FIG. 20.

The openings or openings 168 and 1610 of the magnetic field generation system 164 corresponds to a continuous one Breakthrough 1612 in the overall body of the device base 162, being near the upper mouth of breakthrough 1612 inside the plastic sealing compound behind the inner surface of the breakthrough the radially inner ends of the Pole pieces 1611 are located. Accordingly, the intense rotating magnetic drive field just in this area of the breakthrough in 1612.

From Fig. 19 it can also be seen that the device base 162 a cover plate 1613 is placed, the one has the opening 1614 corresponding to the opening 1612, a sleeve 1615 is integrally attached along the edge thereof is that after lining through the breakthrough in 1612 downwards. The cover plate provided with the sleeve 1615 1613 can be used for cleaning purposes from the device base be removed and protects the device base from contamination by dripping out of treatment vessels Liquid.

The cover plate 1613 is provided with depressions 1616, in which feet 1617 of a frame 1618 to be more precise Positioning can be used. The frame 1618 contains spaced from supports 1619, with openings provided panels 1620 and 1621.

It should be mentioned at this point that according to one in the Drawing not shown modification of the embodiment 19, the frame 1618 can also be designed in this way can that the supports 1619 are not against the cover plate 1613 and the device base 162, but instead with extended, guided past the device base 162 Reach feet to base plate 161. Such a modified one Embodiment can be particularly advantageous be if the entire facility is for simultaneous Handling a variety of treatment vessels in connection with a multiple magnetic field generation system containing device base is formed.

A bearing pin 1622 with a protrudes from the base plate 161 Bearing tip 1623.

Over top opening 1624 of plate 1621 and the opening 1625 the plate 1620 and finally through the opening 1614 of the cover plate 1623 and the opening 1612 the device base 162 is in the arrangement described so far one from an approximately cylindrical treatment vessel 1626 and a bracket attachment coupled with this 1627 existing unit used. The bracket approach 1627 points in the manner shown in FIG. 19 upward reaching arms on the inside are profiled so that they treat the treatment vessel 1626th grip and support safely. The holding arms of the bracket attachment 1627 can be separated by means of dash-dotted Lines of cutouts of the opening 1624 push the plate 1621 through.

There is a cylindrical lower part of the mounting bracket with one reaching up from its lower end Material bore 1628 provided, the upper end of one cooperating with the bearing tip 1623 of the bearing pin 1622 Storage pan for a top storage from the Bracket approach 1627 and the treatment vessel 1626 existing Unit forms.

Above the end of the blind bore 1628 is in the cylindrical Part of the mounting bracket 1627 a magnetic rod 1629 poured, which is shown in Fig. 19 Position of use of the arrangement at the level of Pole pieces 1611 are located within the device base 162 and the most intense part of that of the magnetic field generation system 164 generated rotating magnetic drive field is exposed.

The conical opening 1625 of the plate 1620 surrounds a correspondingly conical section of the bracket approach 1627 with sufficient play but dimensioned so that when lifting the frame 1618 from the cover plate 1613, the treatment vessel 1626 and the Bracket lug 1627 also from device base 162 and the bearing pin 1622 are lifted off.

The opening 1624 of the plate 1621 is also sufficient Play against the outer wall of the treatment vessel 1626, because the treatment vessel has sufficient speed and its content gyroscopic forces resulting from the Bracket approach 1627 and the treatment vessel 1626 existing Support the unit. It may be appropriate that only short circumferential sections of the circumference distributed Inner edge of the opening 1624 up to close to the wall of the treatment vessel 1626 are enough to avoid chattering.

Becomes the device base magnetic field generation system 164 controlled so that the treatment vessel 1626 with his Liquid filling 1630 quickly from standstill to one Speed of, for example, 2000 revolutions / minute runs up, layers of liquid adhere to the inside of the treatment vessel and it finds a shear of the hollow cylindrical liquid layers successively up to the central longitudinal axis of the treatment vessel instead of. If the rotating arrangement is then braked, so keep the radially inner hollow cylindrical liquid layers longer their once reached speed, while the liquid layers near the wall are braked more quickly be, so that again a shear and thus Mixing the liquid filling of the treatment vessel takes place.

By accelerating several times, if necessary periodically, Braking and accelerating in opposite directions Direction of rotation you achieve an intensive stirring or Mixing effect. This effect can be intensified when the treatment vessel 1626 has internal wall protrusions or axially extending ribs or indentations or with one that deviates from the circular shape Cross section is provided.

The embodiment of a device of the specified here Kind, which in Fig. 21 only in its lower part and is indicated schematically, differs from that 19 essentially in that within the device base 162, the magnetic field generation system 164 19 installed in reverse relative to the embodiment according to FIG is such that the pole pieces 1611 on the Underside of the device base 162 and the radial inner ends of the pole pieces in the area of the lower Facing the opening of the opening 1612 of the device base. Accordingly, the permanent magnet body which is the Forms drive part arrangement of the bracket lug 1627, at the lower end of the cylindrical portion of the mounting bracket Fortified in 1627 and has the shape of a diametrically magnetized permanent magnet ring 1631, whose Bore the diameter of the in the cylindrical section of the bracket approach reaching upwards Blind hole corresponds to 1628. In the blind hole 1628 in turn is sufficient in a manner similar to the embodiment 19 of the upright from the base plate 161 Storage pin 1622 up to that as a bearing pan serving bore end.

In the upper part of the bracket lug 1627 integrally formed thereon side arms by clipping into one Circumferential groove at the lower end of the treatment vessel 1626 the connection to the treatment vessel, from which in Fig. 21 only the lower section is shown. Even with the 21 can be used for further support rack serving the treatment vessel according to the type of rack 1.618 of the embodiment according to FIG. 19 is provided his.

22 only in sections in section and in side view drawn device according to another Embodiment differs from that Fig. 19 primarily in that the bracket approach 1627 in the device according to FIG. 22 not with a Material bore 1628 but with a bearing tip 1633 which is in a conical serving as a bearing pan Countersink 1634 of the base plate 161 used is, the countersink 1634 coaxial with the breakthrough 1612 of the device base 162 is positioned. The permanent magnet body 1629 in the embodiment according to FIG. 22 similar to the embodiment according to FIG. 19 in the area of the upper mouth of the opening 1612 the device base 162 and here lies in the space between the opposing pole pieces 1611.

At the upper end of the treatment vessel 1626 is this through opening 1624 of plate 1621 of FIG. 22 not shown frame 1618 performed, in which Opening 1621 from its edges made of thin plastic wires extend radially inwards, which are related to their inner ends against the outer wall of the treatment vessel Support 1626 and this adequate guidance for the rotation of the treatment vessel 1626 and the Bracket approach 1627 formed unit around the Grant longitudinal axis.

As previously indicated, facilities can be found here proposed type so that a plurality of treatment vessels above a device base is rotatably mounted, the corresponding number of is able to generate moving magnetic drive fields, each in interaction with the individual treatment vessels associated drive part arrangements occur. Each of the treatment vessels and the ones provided Bracket lugs is a rotatable bearing device Storage of treatment vessel and mounting attachment assigned.

The embodiment shown in Fig. 23 contrasts one the embodiments of Figures 19 to 22nd modified construction. That in the device base 162 23 magnetic field generation system 164 has a structure similar to that shown in Fig. 20, but have the pole pieces 1611, as shown in FIG. 23 24 in connection with the supervision of FIG. 24, parts 1611a bent upwards, which around the upper breakthrough 1610 of the magnetic field generation system are grouped. The remaining parts of the magnetic field generation system, namely the magnetic return plate 169 with the lower opening 168, which from the back plate towering cores 167, the excitation windings 165 and a device base supported by feet 163 162 laid on cover plate 1613 match the construction according to Figures 19 and 20.

In the breakthroughs 168 and 1610 of the magnetic field generation system 164 coaxial opening 1614 of the cover plate In the embodiment according to FIG. 23, 1613 is a cup-shaped one 100Z plastic lining used, a bearing pin 1622 protrudes from the thick-walled bottom thereof.

The bracket lug 1627 for the or each treatment vessel or test tube 1626 in the embodiment 23 the shape of a two-part design Hub, the inner hub part provided with a longitudinal bore with play on the bearing pin 1622 is. There is a magnetic ring between the shoulders of the hub parts 101Z, which is similar to the embodiment 21 is diametrically magnetized. This is in the supervision of Fig. 24 indicated, here for simplification parts of the cup-shaped lining 100Z omitted and the permanent magnet ring 101Z is drawn with an enlarged diameter.

The outer hub portion of the mounting bracket 1627 carries a cover, which with a flange the upper end the cup-shaped lining 100Z overlaps and a Moisture penetration into the interior of the cup-shaped Lining 100Z prevented. Finally carries the bracket lug 1627 from the aforementioned lid upwardly projecting holding arms or receiving parts, which the Capture the lower end of the associated treatment vessel 1626.

Upper pivot bearing means of the device according to FIG. 23 are omitted in the illustration and can be used before described constructions belong.

It is remarkable in the embodiment according to the figures 23 and 24 that the drive means with the one Breakthrough provided the magnetic field generation system 164 containing device base 162 and on the mounting bracket 1627 provided permanent magnet ring 101Z at the same time Vertical support means for the treatment vessel 1626 and form its filling because that is between the Magnetic parts forming pole piece parts 1611 in the axial Area of breakthrough of the device base is so intense that the permanent magnet ring 101Z and the hub parts of the mounting bracket 1627 as well as the treatment vessel 1626 with filling in the balance, without the Bearing pin 1622 the bracket lug 1626 axial support granted.

Figures 25 and 26 show a modification and a Further development of the cup-shaped lining 100Z or of the mounting bracket 1627 compared to the embodiment according to Fig. 23. The device base and the magnetic field generation system can, however, again be the one shown in FIG Have shape and work with the respective generated magnetic rotating field on the diametrically magnetized Permanent magnetic ring 101Z on. This is in the embodiment 25 on a one-piece hub of the bracket approach 1627 pushed and by a Snap ring held on. The cup-shaped lining 100Z, which in the opening 1614 of the cover plate 1613 the device base is pressed in, serves to support the Bearing pin 1622, here in a hole in the floor the lining 100Z inserted and by means of a snap ring and mother is attached. From the top of the top Mouth of the lining 100Z cross plate of the mounting lug 1627 protrudes an eccentric receptacle for a treatment vessel 1626, such that under Participation in one at the top of the treatment vessel 1626 provided, coaxial to the bearing pin 1622 Rotary mount the treatment vessel 1626 to wobble can be arranged, what for certain treatment processes in a liquid filling of the treatment vessel 1626 is desirable.

In operation, the upper end of the bearing pin 1622 dated End of the coaxial bearing bore of the hub of the mounting bracket 1627 a distance and also imagines Distance between the bottom of the hub and the floor the cup-shaped lining 100Z, which shows is that in operation the rotating magnetic field of the magnetic field generating system the permanent magnet ring 101Z and also the mounting bracket 1627 firmly connected to it axially in the limbo holds.

The shape of the bracket boss 1627 in the embodiment 26 essentially agrees with the related training in the embodiment Fig. 23 match. The same applies to the shape of the cup-shaped Lining 100Z and for that with the diametral 101Z magnetized permanent magnet ring cooperating Magnetic field generation system. The bearing pin 1622 is however not immediately in the embodiment according to FIG. 26 on the wall of an axial bore of the hub of the mounting bracket 1627, but with little play through a sleeve 102Z inserted into this axial bore guided, which each has end conical surfaces. Against these conical surfaces lay down with appropriate ones Centering rings provided on the front conical surfaces 103Z at the top and bottom of the Bearing pin 1622 are provided and which of a lower end of the bearing pin 1622 provided coil spring 104Z, which wraps around the bearing pin 1622, with are slightly biased towards each other. A safe one non-rotatable connection between the centering rings 103Z and the bearing pin 1622 is not required. Because of from the magnetic field generation system to the permanent magnet ring 101Z applied support force must the centering rings 103Z and especially the helical compression spring 104Z non-axial support forces due to the Weight of the bracket approach, the one used in it Pick up the treatment vessel and its filling. Much more effect the centering rings 103Z with their tapered End faces in interaction with the tapered end faces the sleeve 102Z a centering and vibration damping even at very high speeds of magnetic Rotating field and thus very high speeds of the mounting bracket and the treatment vessel.

Make the embodiments according to FIGS. 27 to 32 similar to the embodiments according to the figures 23 to 26 take advantage of the supportive effect of the intensive magnetic rotating field emanating from a magnetic field generation system one with continuous breakthroughs provided device base is built and with a Magnetic body or magnetic ring interacts, which on a treatment vessel or coupled to it Bracket approach is provided. But additionally realized the construction of the embodiments according to the figures 27 to 32 a stirring and mixing principle of independent meaning without complicated vertical support means and with a very simple design of the rotating support means, which is discussed in detail below becomes.

Previously, it was said that when rotating, test tube-like Treatment vessels around their central longitudinal axis layers of liquid close to the inner wall of the vessel be taken more quickly with the rotation, during the Liquid layers closer to the axis of rotation remain, such that the shear forces in the liquid volume the mixing or others by the rotation favor promoted treatment processes. This effect is lost in steady state, however, if the entire Finally, liquid synchronized with the treatment vessel rotates. For this reason it is so far with the Described embodiments expedient, the speed to vary the treatment vessels periodically in particular or change the direction of rotation if necessary.

However, one moves, for example, into a cylindrical treatment vessel translationally so that all points of the Central longitudinal axis of the treatment vessel in horizontal planes describe circular orbits, it can be observed that a liquid filling through such translatory circular movement due to centrifugal forces first pushed against the inner wall of the vessel is and then in the vessel in which by the translational Circular movement to rotate given direction begins.

Now the translatory circular movement of the treatment vessel a rotational movement around the central longitudinal axis overlying the vessel in the opposite direction, this is how it works all the time, even when stationary Shear forces between adjacent liquid layers in the radial direction the liquid filling and you get a very intensive mixing effect.

To implement this principle is in the embodiment 27 a device base designated here with 110Z provided that regarding the training of the Magnetic field generation system with magnetic return plate or yoke plate, from these protruding cores, excitation coils surrounding the cores and attached to the cores Pole pieces according to the structure of the embodiment 23 corresponds, but in the magnetic field generation system the magnetic yoke plate or yoke plate the top and the pole pieces arranged on the bottom are. They also have breakthroughs in magnetic Yoke plate or yoke plate and in the arrangement of the pole pieces, which have a cylindrical, vertical, delimit space lined by a sleeve means larger diameter than in the embodiment 23, as can be seen easily from FIG. 27.

The device base 110Z is larger by means of feet 111Z Supported above a base plate 112Z. In here designated 113Z cylindrical space within the line the through channel of the device base 110Z The sleeve is a hollow cylindrical treatment vessel holder 114Z used, whose outer diameter is significantly smaller Diameter than the cylindrical space has 113Z, as from Fig. 27 and also from the partially in horizontal section drawn partial top view of Fig. 28 can be seen is.

The treatment vessel holder 114Z carries on its upper End a radial flange 115Z, the outside diameter of which larger than the diameter of the cylindrical space 113Z and is on the upper one when the device is switched off End of the lining sleeve of the cylindrical space 113Z sits on. In the treatment vessel holder 114Z is a Ring 116Z made of ferromagnetic material embedded.

The bore of the hollow cylindrical treatment vessel holder 114Z and the breakthrough of the ferromagnetic ring 116Z have essentially the same diameter. Through the treatment vessel holder 114Z and the ferromagnetic ring 116Z is the lower part of a substantially test tube-shaped Pushed through the treatment vessel 117Z, which is attached to the top of the Treatment vessel holder 114Z supports. Near the top Opening of the treatment vessel 117Z has this one all around running constriction 119Z, which for example Function already explained with reference to FIG. 17 fulfilled and a filling of the treatment vessel 117Z prevents being thrown out when the liquid filling promoted by the centrifugal forces at the Wall of the treatment vessel rises.

Become the burner coils of the magnetic field generation system so energized that the magnetic field generation system an intense rotating magnetic field in the cylindrical Space 113Z builds up, so the ferromagnetic Ring 116Z towards the wall of the cylindrical space 113Z and also the ferromagnetic Ring 116Z together with the treatment vessel holder 114Z in the area between the pole pieces of the magnetic field generating system raised as in Fig. 27 from a distance between the 115Z radial flange and the top of the Lining sleeve of the cylindrical space 113Z can be seen is. As the magnetic rotating field progresses in the circumferential direction by appropriate control of the Excitation windings of the magnetic field generation system rolls the treatment vessel holder 114Z, as in FIG. 28 indicated by the radially outer arrow on the inner wall of the cylindrical space 113Z, while at the same time the treatment vessel 117Z has a rotation corresponding to that shown in Fig. 18, radially inner arrow.

The arrangement is such that the Center of gravity from the treatment vessel 117Z and the one below the filling deformed in the centrifugal force in the the axial area occupied by the device base 110Z. The arrangement shown in Fig. 27 therefore requires no additional Swivel bracket and vertical support means and is characterized by particularly simple and clear Construction from.

In the embodiment according to FIG. 29 there is a treatment vessel 120Z use, which is a middle section larger diameter and a lower approach 121Z of smaller diameter and one for opening the container leading neck approach of the same smaller diameter has, which neck is designated 122Z is.

On the lower neck 121Z of the treatment vessel 120Z a ferromagnetic ring 123Z is pushed on, which together with the lower neck 121Z of the treatment vessel 120Z in one also designated here with 113Z cylindrical space within a liner sleeve a breakthrough in the magnetic field generation system, which is constructed accordingly, as in the embodiment 27, but here again the pole pieces on top of the one labeled 110Z Base. The ferromagnetic ring 123Z lies at the level of the pole pieces. Below that of that ferromagnetic ring 123Z occupied area in the cylindrical space 113Z a bearing ring 124Z in the cylindrical space 113Z attached so that the through hole of the ring 124Z to the cylindrical space 113Z is coaxial.

There is a distance above the device base 110Z, which is greater than the axial length of the middle one Section of the treatment vessel 120Z, not at one shown, connected to the device base frame Holding plate 125Z, which with one to the axis of the ring 124Z and the cylindrical space 113Z coaxial opening is provided. In this opening is a bearing support ring 126Z used, the through opening same Diameter has like the through opening of the bearing support ring 124Z.

The magnetic field generating system generates a magnetic one Rotating field in the cylindrical space 113Z of the device base, so the ferromagnetic ring 123Z on the lower neck 121Z of the treatment vessel 120Z on one side against the Inner wall of the cylindrical space 113Z drawn and synchronized with the magnetic rotating field along this inner wall guided all around. The outer wall of the lower shoulder 121Z on the inner circumference of the bearing support ring 124Z and at the same time the outer wall of the identical neck neck 122Z of the treatment vessel 120Z on the inner circumference of the bearing support ring 126Z, whereby the treatment vessel 120Z make very appropriate movements, like this before for the treatment vessel 117Z according to the embodiment Figures 27 and 28 was explained. By appropriate Choice of the diameter of the bearing support rings on the one hand and the smaller diameter sections of the treatment vessel on the other hand, the relationship between the rotation of the rotating magnetic field and the counter-rotation of the treatment vessel about its longitudinal axis become.

It is understood that in the embodiments according to the Figures 27 to 29, they are made with just a single treatment vessel executed, acting in the horizontal direction Vibrating forces or vibrations occur.

In a matrix arrangement from a variety of magnetic field generation systems and associated treatment vessels can such vibrating forces or vibrations thereby be avoided that the individual magnetic field generation systems and assigned treatment vessels in Groups of four are arranged, in which the treatment vessels with their fillings and the parts of the drive means, which move with the treatment vessels, symmetrical and perform movements in opposite phase.

For this purpose, in the embodiment according to the figures 30 and 31, which with the embodiment according to the Figures 27 and 28 is comparable, with each other corresponding Parts also have the same reference numbers are, within the device base 110Z magnetic field generation systems provided where the pole pieces, for example 31 can be seen from the top view Shape both on top and on the underside of the excitation coils of the magnetic field generation systems on each of which is wrapped by the excitation coils Cores are attached. The embodiment according to Figures 30 and 31 does not contain any magnetic Yoke plate or yoke plate of the magnetic field generation system. The treatment vessel holder also differs 114Z of the embodiment according to FIGS. 30 and 31 of the corresponding part of the embodiment according to Figures 27 and 28 in that instead of the ferromagnetic Ring 116C is now an axially polarized Permanent magnet ring 128Z in the treatment vessel holder 114Z is embedded in such a way that the permanent magnet ring 128Z in Operation in the axial area between the upper and lower Pole pieces 127Z comes to rest.

Now become the field windings of the magnetic field generation systems so charged with current waves that in the cylindrical associated with the individual treatment vessels Clear 113Z of the device base 110Z within one Group of four in opposite magnetic rotating fields arise, so the axially magnetized Permanent magnetic rings 128Z in the one shown in FIG Sort out and cause the treatment vessel holders 114Z and the associated treatment vessels 117Z with the therein liquid fillings located in opposite directions, in Rotary movements in the opposite phase, so that the Vibrating forces and vibration forces within the four-way arrangement balance of treatment vessels. It understands that this principle also applies to facilities of the 29 can be used in conjunction with FIG. why an axial instead of the ferromagnetic ring 123Z lowered, axially magnetized permanent magnet ring the lower neck 121Z of the treatment vessel 120Z is the upper and the magnetic field generation systems have lower pole pieces and the bearing support ring 124Z again below the level of the magnetic field generation system to be ordered and with an extension of the lower approach of the treatment vessel interacts.

Claims (47)

1. Device for stirring, intermixing or agitating liquids, especially also for the purpose of temperature control, concentration and centrifuging,

   with a vessel (1) for receiving the liquid, which is elongated along an essentially vertical axis and has an upper filling orifice,

   with vertical support means (2, 5) for absorbing at least some of the weight of the vessel (1) and the liquid,

   with rotary mounting means (7, 8) for positioning and guiding the vessel (1) during rotation about its essentially vertical axis of symmetry, and

   with drive means (3, 4) for generating the rotation of the vessel,

   characterized in that, to the rotary mounting means (7, 8), centring and stabilizing means (9, 10) are assigned, which exert, in a clearance (S) between said rotary mounting means and the outer wall of said vessel, centring and stabilizing forces acting on the vessel.
2. Device according to Claim 1, characterized in that the centring an stabilizing means are assigned to rotary mounting means located at the lower end of the vessel (1).
3. Device according to Claim 2, characterized in that a cylindrical sleeve is pushed onto the lower end of the vessel, into the lower end of which sleeve extends a bearing tenon which projects upwards from an appliance base and which has a circumferential bead located with play opposite the sleeve inner wall.
4. Device according to Claims 1 to 3, characterized in that the lower end of the vessel (1) is designed as a bearing cap or is provided with a coaxial integrally formed bearing pin (2), the lower end of the bearing cap or of the bearing pin engaging into a step bearing (44) which is provided in the appliance base (13) an which, with the lower vessel end or the pin (2), forms the vertical support means.
5. Device according to Claim 1, characterized in that the centring an stabilizing means are assigned to upper rotary mounting means.
6. Device according to Claim 5, characterized in that the centring and stabilizing means are formed by a ring with an inner edge located with play (S) opposite the vessel outer wall and by dampingly resilient intermediate parts which absorb vibration by virtue of friction and which are provided between the vessel and parts, in particular a holding plate (16), fixed to the frame.
7. Device according to Claim 5 or 6, characterized in that the centring and stabilizing means are formed by a springily and dampingly resilient diaphragm-like annular disc (21), which is clamped between two plate parts of a holding plate (16) and which reaches with its inner edge from the edge of the plate-part bores (15) concentric to the axis of symmetry of the vessel near to the outer wall of the vessel (1), or by an annular damper disc (19) which projects from the vessel and covers a passage bore (15) of a holding plate (16) fixed to the frame and which rests slidably on the bore edge.
8. Device according to Claim 5, characterized in that the centring and stabilizing means contain a magnetic ring (26), which is pushed onto the upper end of the vessel (1) and an annular end face which forms a south pole, and at least three magnetic bodies (27) which are arranged at an equal circumferential interval along the edge of a bore (15) of a holding plate (16), the said bore being concentric to the axis of symmetry of the vessel, and which have magnetization in the same direction as the magnetization of the magnetic ring (26) and hold the magnetic ring coaxially to the said bore (15) by means of forces of repulsion (Figure 6).
9. Device according to Claim 5, characterized in that the wall of the vessel has, in the region of the access orifice, a tumed-round rim extension, into which extend from below a tubular extension, the cylindrical outer wall of which is located with slight play opposite the cylindrical inner wall of the turned-round rim part and which projects upwards from the edge of a bore of a holding plate, the said bore being approximately concentric to the axis of symmetry of the vessel.
10. Device according to Claim 5, characterized in that at the upper end of the vessel (1), near its access orifice, is located a magnetic ring (42) which is pushed onto the vessel neck or is embedded or anchored in a lid part (41) inserted into the vessel mouth and which has, on its downwardly pointing annular end face, alternating north and south poles generated by corresponding magnetization and is provided, on the side facing away from the lower annular face, with a magnetic return ring (43), in that the lower annular end face of the magnetic ring (42) has located opposite it the end faces of upwardly bent pole shoes (40) of poles of a magnetic-field generating system (37, 38, 39, 40) fixed to the frame, the said poles generating a rotating driving magnetic field, and in that the lower end of the vessel (1) ist supported by the vertical support means, in such a way that the forces of attraction between the magnetic ring (42) and the pole shoes (40) of the magnetic-field generating system draw the vessel (1) towards the vertical support means and prevent the vessel (1) from floating in a liquid bath which may possibly be provided.
11. Device according to Claim 10, characterized in that the exciting windings (38) of the magnetic-field generating system are arranged at a level near the access orifice of the vessel (1) and in that a magnetic return plate (36), which connects the lower ends of the pole cores (37) to one another, is arranged either in the appliance base (13) or at a comparatively short distance below the pole shoes (40) (Figures 11 and 12).
12. Device according to Claim 11, characterized in that a liquid tank is provided for receiving a liquid bath which surrounds the or each vessel (1) to a level below the exciting windings of the magnetic-field generating system or magnetic-field generating systems.
13. Device according to one of Claims 1 to 12, characterized in that a treatment device (11) rotating together with the vessel (1) is inserted into the mouth of the or each vessel.
14. Device according to Claim 13, characterized in that the treatment device (11) is in the form of a cooling head which is manufactured from thermally conductive material and which projects with a heat-exchange body (47), preferably provided with ribs, into the vessel interior and is connected to a fan-wheel body (48) which projects beyond the access orifice of the vessel and which operates as a radial fan and, by being connected to the heat-exchange body (47), extracts heat from the latter in order to cool the content of the vessel (1) (Figures 15 and 16).
15. Device according to Claim 14, characterized in that an axial duct connecting the centre of the fan wheel (48) to the interior of the vessel (1) extends through the fan wheel and the heat-exchange body (47), there being provided along the said axial duct a chamber (51) which serves as a bubble and condensate trap and which is connected to the vessel interior by means of return ducts (52) running radially outwards and obliquely downwards.
16. Device according to Claim 1, characterized in that the vertical support means are formed by a bearing cap or bearing pivot point at the lower end of the vessel (195) or on a carrier coupled to the latter, on the one hand, and by step bearing (194) or an essentially flat bearing supporting face having a lower curvature than the bearing cap or bearing pivot point.
17. Device according to Claim 1, characterized in that the vertical support means are formed by a step bearing (1932) of low curvature or by an upward bore (1931) on or in a carrier (1927) coupled to the lower vessel end, on the one hand, and by a bearing tenon (1933) projecting upwards from an appliance base or from an appliance base part and having an upper bearing cap or bearing pivot point, on the other hand.
18. Device according to Claim 1, characterized in that centring and stabilizing means contain, in the region of the upper and/or the lower rotary mounting, a preferably slotted plastic ring (197) which surrounds the centred vessel (195) with slight play and which is connected, via at least one elastic bridge or spoke (196), to a carrier body (193) securable or fastened to the frame or is prestressed towards the lower vessel end by spring means (196a).
19. Device according to Claim 1, characterized in that the centring and stabilizing means contain, in the region of the upper and/or lower rotary mounting, in each case a magnetic system ring (1918) pushed onto the vessel (195) and a ferromagnetic counter-ring located essentially axially opposite the said magnetic system ring and exerting forces of attraction on the magnetic system ring.
20. Device according to Claim 19 characterized in that the magnetic system ring (1918) or the counter-ring contains a continuous yoke ring an diametral portions in the form of a section of an annulus of an extent of less than 180°, which are affixed axially to the said yoke and are in each case polarized axially opposite to one another, and in that the counter-ring or, correspondingly, the magnetic ring contains a ferromagnetic continuous ring mounted so as to be fixed to the fame or else a ring arrangement of pole pieces (1915) which are in the form of a sector of an annulus and which are an integral part of a magnetic-field generating system of the drive means.
21. Device according to Claim 20, characterized in that the magnetic system ring (1918) or the ferromagnetic counter-ring at the lower end of the vessel (195) is pushed onto the latter or is fastened to a or the carrier (1927) coupled to the said vessel, and in that the counter-ring or magnetic system ring fixed to the frame has a diameter larger than that of the vessel-side magnetic system ring or counter-ring and is located axially opposite and below the latter, and in that the support point is at such an axial distance from the interspace between the counter-ring and magnetic system ring that an oblique position of the plane of the rings relative to one another moves their end faces away from one another in mutually opposite circumferential regions.
22. Device according to Claim 1, characterized in that the drive system has a plate-body arrangement (199) which is provided with a perforation for the vessel (195) and which contains exciting coils (1914) for a magnetic rotary-field generating system, a yoke plate (1911) provided with a perforation for the passage of the vessel (195) and pole-shoe arrangements (1912) coupled to the exciting coils (1914) and having pole pieces (1915) surrounding the perforation an directed upwards or downwards in the latter.
23. Device according to Claim 1 or 22, characterized in that the appliance can be inserted from above into a or the carrier (1927) having the support means and locked.
24. Device according to Claim 23, characterized in that the support means or the bearing tenon (1933) projecting upwards from the appliance base (191) are or is of springy design and the spring excursion is limited by stop means.
25. Device according to Claim 23 or 24, characterized in that the carrier (1927) has a circumferential flange (1934) which is superposed by a shutter (1935) which, when the vessel (195) and carrier (1927) are separated, retains the latter.
26. Device according to one of Claims 16 to 25, characterized in that a heat supply device is located at the lower end of the vessel (195) and a cooling device is located at the upper end of the vessel.
27. Device according of Claim 26, characterized in that the heat supply device comprises a bearing tenon heated, in particular, via an appliance base and fixed to the frame, on the one hand, and a or the carrier mechanically and thermally coupled to the vessel, on the other hand.
28. Device according to Claim 26 or 27, characterized in that the heat supply device contains discs or cylinders projecting from the frame and capable of being heated via the appliance base, on the one hand, and discs or cylinders provided an the or a carrier for the vessel and located opposite the frame-side discs or cylinders at a distance from these, on the other hand.
29. Device according to one of Claims 16 to 28, characterized in that the lower region of the vessel is immersed in an, in particular, heated liquid bath.
30. Device according to one of Claims 16 to 29, characterized in that a disturbing shutter (1944, 1945) having a perforation adapted to the diameter of the vessel (195) is movable axially from a position of rest into an operating position, in which, because play between the perforation of the disturbing shutter and the wall of the vessel has become smaller, the vessel executes rattling vibrations during rotation.
31. Device according to one of Claims 16 to 30, characterized in that vessels, vertical support means, rotary mounting means and drive means are provided, in each case in a corresponding design, in a matrix-like multiple arrangement.
32. Device according to one of Claims 16 to 31, characterized in that the or each vessel (5) rotates at such a rotational speed, preferably above 3,000 1/min, that, in the case of a point-like support of its lower end or of a carrier connected to the latter, the said vessel rotates as a gyroscope and, apart from the vertical support, essentially contactlessly.
33. Device according to one of Claims 16 to 32, characterized in that an insert vessel for receiving the liquid to be treated can be pushed axially into the or each vessel (5).
34. Device according to Claim 1, characterized in that the drive means contain an appliance base (2) generating a rotating magnetic driving field and a magnetically hard and soft driving part arrangement coupled to the treatment vessel and coming into interaction with the moved magnetic driving field of the appliance base, and in that the vertical support means have a holding extension which also forms part of the rotary mounting means and extends downwards at the lower end of the treatment vessel along the longitudinal axis of the latter and which contains a mounting part of the bearing device, consisting of a bearing pivot point or bearing shaft and of a step bearing or bearing sleeve, and the driving part arrangement, the holding extension extending through a perforation of the appliance base which contains either near its top side or near its underside, in the region of this perforation, the poles of the magnetic-field generating system which generate the rotating magnetic driving field, and the driving part arrangement being located essentially vertically level with these poles.
35. Device according to Claim 34, characterized in that below or at the appliance base is provided a bottom plate which carries either the step bearing or bearing sleeve for the bearing pivot point or bearing shaft of the holding extension or the bearing pivot point or bearing shaft for the step bearing or bearing sleeve of the holding extension.
36. Device according to Claim 34 or 35, characterized in that the appliance base (162) has placed on it a cover plate (1613) which has an orifice (1614) corresponding to the perforation (1612) of the appliance base (162) and a lining of the perforation of the appliance base, the said lining being inserted into the orifice or integrally adjoining the edge of the latter and being open or provided with a bottom.
37. Device according to one of Claims 34 to 36, characterized in that a frame (1618) can be placed onto the appliance base (162) or the cover plate (1613), if appropriate with support against the ground, the said frame having, at a level near the upper end of the treatment vessel (1626), a plate (1621) with an orifice (1624) which is vertically coaxial with the perforation (1612) of the appliance base (162) and, at least with parts of its inner edge, is close to the outer wall of the treatment vessel (1626).
38. Device according to Claim 37, characterized in that elastically resilient support means, as centring and stabilizing means, from the edge of the orifice of the plate (1621) of the frame (1618) are close to the outer wall of the treatment vessel.
39. Device according to one of Claims 34 to 38, characterized in that the holding extension (1627) is releasably connected to the treatment vessel, in particular can be coupled to the latter by locking.
40. Device according to one of Claims 34 to 39, characterized in that, in addition to the said treatment vessel, it contains a series of further identically designed treatment vessels, associated holding extensions and further bearing devices identical to the said bearing device and assigned in each case to the treatment vessels, and in that, in addition to the said magnetic driving field, further magnetic driving fields assigned to the individual treatment vessels can be generated by means of the appliance base.
41. Device according to one of Claims 34 to 36, characterized in that a bearing pin (1622), which extends into a bearing bore of the holding extension (1627), projects upwards from a bottom of the or lining sleeve (1614) inserted into the perforation of the appliance base (162), and in that the driving part arrangement is in the form of a diametrically magnetized permanent-magnet ring (101Z) which is entrained by the magnetic rotary field of the magnetic-field generating system, the said rotary field being generated between the pole pieces (1611, 1611a), and at the same time is lifted, together with the holding extension, for supporting the latter, the treatment vessel (1626) and its liquid filling (Figures 23 and 24).
42. Device according to Claim 41, characterized in that the holding extension (1627) has a hub part containing the bearing bore for the bearing pin (1622) and a lid which is provided at the upper end of the said hub part and engages over the mouth of the lining sleeve and from the top side of which projects upwards a concentric or eccentric holding device grasping the respective treatment vessel (1626) at the lower end of the latter.
43. Device according to Claim 42, characterized in that a sleeve (102Z) with, in particular, conical end faces is inserted into an axial bore of the hub part of the holding extension (1627), in that the bearing pin (1622) extends with play through the bore of this sleeve, and in that upper and lower centring rings (102Z) seated on the bearing pin (1622) and having corresponding conical end faces are pressed with slight prestressing force against the corresponding conical end faces of the sleeve (102Z) (Fig. 26).
44. Device according to Claim 1, characterized in that the drive means contain an appliance base generating a rotating magnetic driving field and a magnetically hard or soft driving part arrangement (116Z; 123Z, 128Z), coupled to the treatment device and coming into interaction with the moved magnetic driving field of the appliance base, the appliance base (110Z) having a perforation (113Z) and containing near its top side and/or near its underside, in the region of this perforation, the poles of the magnetic-field generating system which generate the rotating magnetic driving field, and the driving part arrangement being located essentially vertically level with these poles or vertically level with and between these poles and, together with the magnetic-field generating system, also forming the vertical support means, and in that, furthermore, the inside diameter of the perforation (113Z) of the appliance base (110Z) is larger than the outside diameter of a hollow-cylindrical treatment vessel holding ring (114Z), or else in that the inside diameter of a bearing support ring (124Z) inserted into the perforation (113Z) is larger than the outside diameter of the treatment vessel extension (121Z) having a reduced diameter, in such a way that, when the driving part arrangement (116Z; 123Z) is driven by the rotating magnetic driving field, the longitudinal axis of the treatment vessel (117Z) is moved on circular paths located in horizontal planes, whilst at the same time, due to the rolling of the treatment vessel holding ring (114Z) on the inner face of the perforation (113Z) or the rolling of the outer face of the treatment vessel shoulder (121Z) on the inner face of the bearing support ring (124Z), the treatment vessel rotates about its longitudinal axis in the opposite direction (Fig. 27 to 31).
45. Device according to Claim 44, characterized in that the driving part arrangement is formed by an axially magnetized permanent-magnet ring (128z) which is embedded into the treatment vessel holding ring (114z) which, during operation, is located at a vertical level between upper and lower pole pieces (127z) of the magnetic-field generating system.
46. Device according to Claim 45, characterized in that, in addition to the said treatment vessel, it contains a series of further identically designed treatment vessels and associated magnetic-field generating systems which are arranged in groups of four, the exciting windings of the magnetic-field generating systems being supplied with phase-shifted alternating currents, in such a way that the individual treatment vessels, together with their liquid filling, execute, in pairs adjacent to one another, opposed movements which are in phase opposition.
47. Device according to Claim 10 or 20 or 21, characterized in that that magnetic ring or magnetic system ring (1918) is partially surrounded by a screening ring (1918) consisting of magnetically soft material, in such a way that the end face of the magnetic ring or magnetic system ring which presents the different magnetic poles is exposed, whilst the magnetic ring or magnetic system ring is covered by the magnetic screening ring on the outer faces emitting stray magnetic fields, so that, within a matrix arrangement of treatment vessels and associated magnetic-field generating systems, mutually adjacent systems consisting of treatment vessels with associated magnetic rings or magnetic system rings do not influence one another (Figure 17).

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