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EP0966321B1 - Dispositif permettant de remuer, de melanger ou d'agiter des liquides, notamment a des fins d'equilibrage de temperature, de concentration et de centrifugation - Google Patents

Dispositif permettant de remuer, de melanger ou d'agiter des liquides, notamment a des fins d'equilibrage de temperature, de concentration et de centrifugation Download PDF

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Publication number
EP0966321B1
EP0966321B1 EP98913671A EP98913671A EP0966321B1 EP 0966321 B1 EP0966321 B1 EP 0966321B1 EP 98913671 A EP98913671 A EP 98913671A EP 98913671 A EP98913671 A EP 98913671A EP 0966321 B1 EP0966321 B1 EP 0966321B1
Authority
EP
European Patent Office
Prior art keywords
vessel
magnetic
ring
bearing
treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98913671A
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German (de)
English (en)
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EP0966321A1 (fr
Inventor
Helmut Herz
Klaus Kaufmann
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19709237A external-priority patent/DE19709237A1/de
Priority claimed from DE19709236A external-priority patent/DE19709236A1/de
Priority claimed from DE19724046A external-priority patent/DE19724046A1/de
Application filed by Individual filed Critical Individual
Publication of EP0966321A1 publication Critical patent/EP0966321A1/fr
Application granted granted Critical
Publication of EP0966321B1 publication Critical patent/EP0966321B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/30—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles
    • B01F29/31—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles the containers being supported by driving means, e.g. by rotating rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/30—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles
    • B01F29/34—Constructional details of holders for the individual packages or containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/42—Clamping or holding arrangements for mounting receptacles on mixing devices

Definitions

  • 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.
  • a magnetic stirring device known in a plate-shaped base 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.
  • vascular speed range should can be expanded to over 8000 1 / min.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the treatment device 11 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.
  • a microwave source 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.
  • 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.
  • FIG. 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • vessels 1 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 upper end face of the trunnion also the vertical support means for absorbing the weight form the vessel 1 and its filling.
  • 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.
  • 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 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.
  • 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.
  • 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.
  • FIG. 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.
  • Chamber 51 for bubble and condensate trap 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.
  • 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.
  • 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.
  • FIG. 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.
  • each opening 192 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the carrier 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • drive means are similar 14 in the region of the lower end of the vessel 195 provided.
  • a magnet system ring in the carrier Embedded in 1918 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
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the device base 162 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.
  • a magnetic rod 1629 poured 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the device base 110Z 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.
  • 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 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.

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Claims (47)

  1. Dispositif permettant de remuer, de mélanger ou d'agiter des liquides, notamment à des fins d'équilibrage de température, de concentration et de centrifugation, comprenant
    un récipient (1) allongé le long d'un axe essentiellement vertical et pourvu d'une ouverture de remplissage supérieure, qui sert à contenir le liquide,
    des moyens de support verticaux (2, 5) pour recevoir au moins une partie du poids du récipient (1) et du liquide,
    des moyens de fixation rotatifs (7, 8) servant à positionner et à guider le récipient (1) lors d'une rotation autour de son axe de symétrie essentiellement vertical, et
    comprenant des moyens de commande (3, 4) pour produire la rotation du récipient,
    caractérisé en ce que des moyens de centrage et de stabilisation (9, 10) sont associés aux moyens de fixation rotatifs (7, 8), appliquant dans un espace libre (S) entre les moyens de fixation rotatifs et la paroi extérieure du récipient, des forces de centrage et de stabilisation agissant sur le récipient.
  2. Dispositif selon la revendication 1, caractérisé en ce que les moyens de centrage et de stabilisation sont associés à des moyens de fixation rotatifs situés au niveau de l'extrémité inférieure du récipient (1).
  3. Dispositif selon la revendication 2, caractérisé en ce qu'un manchon cylindrique est enfilé sur l'extrémité inférieure du récipient, manchon dans l'extrémité inférieure duquel s'avance un tourillon se dressant depuis une base de l'appareil et qui est pourvu d'un bourrelet circonférentiel faisant face, avec du jeu, à la paroi intérieure du manchon.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'extrémité inférieure du récipient (1) est exécutée en tant que calotte d'appui ou est pourvue d'un tenon (2) solidaire coaxial, l'extrémité inférieure de la calotte d'appui resp. du tenon s'emboítant dans une cavité d'appui (44) prévue dans la base (13) de l'appareil et qui, avec l'extrémité inférieure du récipient resp. le tenon (2), forme les moyens de support verticaux.
  5. Dispositif selon la revendication 1, caractérisé en ce que les moyens de centrage et de stabilisation sont associés aux moyens de fixation rotatifs supérieurs.
  6. Dispositif selon la revendication 5, caractérisé en ce que les moyens de centrage et de stabilisation sont formés par une bague pourvue d'un bord intérieur faisant face, avec un jeu (S), à la paroi extérieure du récipient, et par des parties intermédiaires flexibles à effet amortisseur absorbant les vibrations en raison du frottement, et qui sont prévues entre le récipient et des parties fixes sur le châssis, notamment une plaque de maintien (16).
  7. Dispositif selon l'une des revendications 5 ou 6, caractérisé en ce que les moyens de centrage et de stabilisation sont formés par un disque annulaire (21) flexible similaire à une membrane, à effet élastique et amortisseur, qui est serré entre deux parties de plaque d'une plaque de maintien (16) et qui, avec son bord intérieur, arrive jusqu'à proximité de la paroi extérieure du récipient (1) depuis le bord des alésages (15) des parties de plaque concentriques à l'axe de symétrie du récipient, ou par un disque annulaire amortisseur (19) s'écartant du récipient, qui couvre un alésage de passage (15) d'une plaque de maintien (16) fixe sur le châssis et est appuyé de manière glissante sur le bord de l'alésage.
  8. Dispositif selon la revendication 5, caractérisé en ce que les moyens de centrage et de stabilisation comprennent un aimant en couronne (26) enfilé sur l'extrémité supérieure du récipient (1) et dont une face frontale en forme d'anneau de cercle forme un pôle sud, et au moins trois corps magnétiques (27) disposés à des distances circonférentielles égales le long du bord d'un alésage (15) d'une plaque de maintien (16) concentrique à l'axe de symétrie du récipient, qui sont magnétisés dans le même sens que l'aimant en couronne (26) et qui maintiennent l'aimant en couronne de manière coaxiale par rapport à l'alésage (15) mentionné grâce à des forces répulsives (Fig. 6).
  9. Dispositif selon la revendication 5, caractérisé en ce que la paroi du récipient est pourvue, dans la zone de l'ouverture d'accès, d'un rebord saillant renversé dans lequel s'avance, par en dessous, une saillie tubulaire dont la paroi extérieure cylindrique fait face, avec un jeu réduit, à la paroi intérieure cylindrique de la partie renversée du rebord et qui se dresse depuis le bord d'un alésage d'une plaque de maintien qui est à peu près concentrique à l'axe de symétrie du récipient.
  10. Dispositif selon la revendication 5, caractérisé en ce qu'un aimant en couronne (42) enfilé sur le col du récipient ou bien encastré ou ancré dans un élément de couvercle (41) inséré dans l'embouchure du récipient se trouve à l'extrémité supérieure du récipient (1), près de son ouverture d'accès, lequel aimant en couronne comporte, sur sa surface frontale annulaire dirigée vers le bas, des pôles nord et sud alternants produits par une magnétisation correspondante, et est pourvu, sur le côté éloigné de la surface annulaire inférieure, d'un anneau de reflux magnétique (43), en ce que les surfaces frontales des pièces polaires (40), pliées vers le haut, des pôles d'un système de production de champ magnétique (37, 38, 39, 40) fixe sur le châssis produisant un champ magnétique de commande rotatif font face à la surface frontale annulaire inférieure de l'aimant en couronne (42), et en ce que l'extrémité inférieure du récipient (1) est supportée par les moyens de support verticaux de manière à ce que les forces d'attraction entre l'aimant en couronne (42) et les pièces polaires (40) du système de production de champ magnétique tirent le récipient (1) contre les moyens de support verticaux et empêchent que le récipient (1) flotte dans un bain de liquide prévu le cas échéant.
  11. Dispositif selon la revendication 10, caractérisé en ce que les enroulements d'excitation (38) du système de production de champ magnétique sont situés à un niveau proche de l'ouverture d'accès du récipient (1), et en ce qu'une plaque de culasse magnétique (36) reliant l'une à l'autre les extrémités inférieures des noyaux polaires (37) est située soit dans la base (13) de l'appareil, soit sous la pièce polaire (40), à une distance relativement réduite (Fig. 11 et 12).
  12. Dispositif selon la revendication 11, caractérisé en ce que l'on prévoit une cuve à liquide destinée à recevoir un bain de liquide qui entoure le resp. chaque récipient (1) jusqu'à un niveau arrivant sous les enroulements d'excitation du système de production de champ magnétique resp. des systèmes de production de champs magnétiques.
  13. Dispositif selon l'une des revendications 1 à 12, caractérisé en ce qu'un dispositif de traitement (11) tournant avec le récipient est inséré dans l'embouchure du ou de chaque récipient (1).
  14. Dispositif selon la revendication 13, caractérisé en ce que le dispositif de traitement (11) se présente sous la forme d'une tête de refroidissement fabriquée dans un matériau thermoconducteur, qui entre à l'intérieur du récipient avec un corps échangeur de chaleur (47) de préférence pourvu d'ailettes et est reliée à un corps de roue de ventilateur (48) saillant sur l'ouverture d'accès du récipient, qui fonctionne en tant que ventilateur radial et qui, grâce à sa liaison avec le corps échangeur de chaleur (47), extrait la chaleur de celui-ci afin de refroidir le contenu du récipient (1) (Fig. 15 et 16).
  15. Dispositif selon la revendication 14, caractérisé en ce qu'un canal axial reliant le centre de la roue de ventilateur (48) avec l'intérieur du récipient (1) s'étend à travers la roue de ventilateur (48) et le corps échangeur de chaleur (47), canal sur le trajet duquel on prévoit une chambre (51) servant de piège à bulles et à condensat qui communique avec l'intérieur du récipient grâce à des canaux de retour (52) s'étendant de manière radiale vers l'extérieur et oblique vers le bas.
  16. Dispositif selon la revendication 1, caractérisé en ce que les moyens de support verticaux sont formés, d'une part, par une calotte d'appui ou pointe d'appui située au niveau de l'extrémité inférieure du récipient (195) ou au niveau d'un support couplé à celui-ci et, d'autre part, par une cavité d'appui (194) présentant une moins grande courbure que la calotte d'appui ou pointe d'appui ou par une surface de support d'appui essentiellement plate.
  17. Dispositif selon la revendication 1, caractérisé en ce que les moyens de support verticaux sont formés, d'une part, par une cavité d'appui (1932) de courbure plus réduite ou par un alésage montant (1931) situé sur resp. dans un support (1927) couplé à l'extrémité inférieure du récipient et, d'autre part, par un tourillon (1933) se dressant depuis une base de l'appareil ou une partie de la base de l'appareil, avec la calotte d'appui ou pointe d'appui supérieure.
  18. Dispositif selon la revendication 1, caractérisé en ce que les moyens de centrage et de stabilisation comprennent, dans la zone de la fixation rotative supérieure et/ou inférieure, une bague en matière plastique (197), de préférence fendue, entourant avec un jeu réduit le récipient (195) centré, qui est reliée, par le biais d'au moins un pont ou rayon élastique (196), à un corps de support (193) fixé ou pouvant être fixé sur le châssis, ou qui est mise en précontrainte contre l'extrémité inférieure du récipient grâce à des moyens élastiques (196a).
  19. Dispositif selon la revendication 1, caractérisé en ce que les moyens de centrage et de stabilisation comprennent à chaque fois, dans la zone de la fixation rotative supérieure et/ou inférieure, un système magnétique en couronne (1918) enfilé sur le récipient (195) et une couronne antagoniste ferromagnétique qui lui fait essentiellement face dans le sens axial et exerce des forces d'attraction sur le système magnétique en couronne.
  20. Dispositif selon la revendication 19, caractérisé en ce que le système magnétique en couronne (1918) ou la couronne antagoniste contient un anneau de culasse continu et des segments diamétraux de secteurs d'anneau de cercle s'étendant sur moins de 180° appliqués dans le sens axial sur l'anneau de culasse et polarisés à chaque fois de manière opposée l'un par rapport à l'autre dans le sens axial, et en ce que la couronne antagoniste ou, de manière correspondante, l'aimant en couronne, contient un anneau ferromagnétique continu monté de manière fixe sur le châssis ou bien un arrangement annulaire d'éléments polaires (1915) en forme de secteurs d'anneau de cercle qui font partie d'un système de production de champ magnétique des moyens de commande.
  21. Dispositif selon la revendication 20, caractérisé en ce que le système magnétique en couronne (1918) ou la couronne antagoniste ferromagnétique situé/e au niveau de l'extrémité inférieure du récipient (195) est enfilé/e sur celui-ci ou fixé sur un resp. le support (1927) couplé à cette extrémité, et en ce que la couronne antagoniste resp. le système magnétique en couronne fixe sur le châssis a un plus grand diamètre que le système magnétique en couronne ou la couronne antagoniste situé/e sur le côté du récipient et est situé/e en face et au-dessous de celui-ci/celle-ci dans le sens axial, et en ce que le point d'appui est situé à une distance axiale de l'espace intermédiaire entre la couronne antagoniste et le système magnétique en couronne telle qu'une position oblique des plans des couronnes l'un par rapport à l'autre éloigne l'une de l'autre leurs surfaces frontales dans les zones circonférentielles situées en face l'une de l'autre.
  22. Dispositif selon la revendication 1, caractérisé en ce que le système de commande comprend un arrangement de corps de plaques (199) présentant une découpure pour le récipient (195) et qui contient des bobines d'excitation (1914) pour un système de production de champ magnétique rotatif, une plaque de culasse (1911) pourvue d'une découpure pour le passage du récipient (195) et des arrangements de pièces polaires (1912) couplés aux bobines d'excitation (1914), avec des éléments polaires (1915) entourant la découpure et dirigés vers le haut ou vers le bas dans celle-ci.
  23. Dispositif selon l'une des revendications 1 ou 22, caractérisé en ce que l'appareil peut être emboíté et enclenché par le haut dans un support (1927) ou dans le support (1927) pourvu des moyens de support.
  24. Dispositif selon la revendication 23, caractérisé en ce que les moyens de support resp. le tourillon (1933) se dressant depuis la base (191) de l'appareil sont resp. est exécuté/s de manière élastique et la course élastique est limitée par des moyens de butée.
  25. Dispositif selon l'une des revendications 23 ou 24, caractérisé en ce que le support (1927) est pourvu d'une bride circonférentielle (1934) sur laquelle est superposé un cadre (1935) qui retient le support (1927) lorsque l'on sépare le récipient (195) de celui-ci.
  26. Dispositif selon l'une des revendications 16 à 25, caractérisé en ce que le récipient (195) est pourvu d'un dispositif d'amenée de chaleur au niveau de son extrémité inférieure et d'un dispositif de refroidissement au niveau de son extrémité supérieure.
  27. Dispositif selon la revendication 26, caractérisé en ce que le dispositif d'amenée de chaleur comprend d'une part un tourillon fixe sur le châssis, chauffé notamment par le biais d'une base de l'appareil, et d'autre part un resp. le support couplé mécaniquement et thermiquement avec le récipient.
  28. Dispositif selon l'une des revendications 26 ou 27, caractérisé en ce que le dispositif d'amenée de chaleur comprend, d'une part, des disques ou cylindres éloignés du châssis et pouvant être chauffés par le biais de la base de l'appareil et, d'autre part, des disques resp. cylindres prévus sur le resp. un support pour le récipient et situés à une distance en face des disques ou cylindres situés sur le côté du châssis.
  29. Dispositif selon l'une des revendications 16 à 28, caractérisé en ce que la zone inférieure du récipient est immergée dans un bain de liquide, notamment chauffé.
  30. Dispositif selon l'une des revendications 16 à 29, caractérisé en ce qu'un cadre perturbateur (1944, 1945) pourvu d'une découpure adaptée au diamètre du récipient (195) peut être déplacé axialement d'une position de repos dans une position de service dans laquelle, en raison d'un jeu devenu plus petit entre la découpure du cadre perturbateur et la paroi du récipient, ce dernier produit des oscillations vibratoires lors de la rotation.
  31. Dispositif selon l'une des revendications 16 à 30, caractérisé en ce que les récipients, les moyens de support verticaux, les moyens de fixation rotatifs et les moyens de commande sont prévus, chacun dans leur exécution correspondante, dans un arrangement multiple similaire à une matrice.
  32. Dispositif selon l'une des revendications 16 à 31, caractérisé en ce que le resp. chaque récipient (5) tourne avec une vitesse de rotation, de préférence supérieure à 3000 tours/min, telle que, son extrémité inférieure resp. un support relié à celle-ci bénéficiant d'un appui ponctuel, le resp. chaque récipient tourne comme une toupie et essentiellement sans contact, à l'exception de l'appui vertical.
  33. Dispositif selon l'une des revendications 16 à 32, caractérisé en ce que l'on peut introduire axialement, dans le resp. chaque récipient (5), un récipient intérieur destiné à contenir le liquide à traiter.
  34. Dispositif selon la revendication 1, caractérisé en ce que les moyens de commande comprennent une base (2) de l'appareil produisant un champ de commande magnétique rotatif et un dispositif d'éléments de commande magnétiques durs et doux qui est accouplé au récipient de traitement et entre en interaction avec le champ de commande magnétique mobile de la base de l'appareil, et en ce que les moyens de support verticaux comprennent une pièce saillante de fixation faisant également partie des moyens de fixation rotatifs et s'étendant vers le bas le long de l'axe longitudinal du récipient de traitement, au niveau de l'extrémité inférieure de celui-ci, et qui contient un élément de logement du dispositif d'appui formé par une pointe d'appui ou arbre d'appui et une cavité d'appui ou manchon d'appui, ainsi que le dispositif d'éléments de commande, la pièce saillante de fixation passant à travers une découpure de la base de l'appareil qui contient, dans la zone de cette découpure, soit près de son côté supérieur, soit près de son côté inférieur, les pôles du système de production de champ magnétique produisant le champ de commande magnétique rotatif, et le dispositif d'éléments de commande se trouvant essentiellement au niveau vertical de ces pôles.
  35. Dispositif selon la revendication 34, caractérisé en ce que l'on prévoit, sous la base de l'appareil ou au niveau de celle-ci, une plaque de base qui porte soit la cavité d'appui ou manchon d'appui pour la pointe d'appui ou axe d'appui de la pièce saillante de fixation, soit la pointe d'appui ou axe d'appui pour la cavité d'appui ou manchon d'appui de la pièce saillante de fixation.
  36. Dispositif selon l'une des revendications 34 ou 35, caractérisé en ce qu'une plaque de couverture (1613) est posée sur la base (162) de l'appareil, laquelle plaque de couverture est pourvue d'une ouverture (1614) correspondant à la découpure (1612) de la base (162) de l'appareil et d'un revêtement de la découpure de la base de l'appareil, soit ouvert, soit pourvu d'un fond, qui est soit solidaire du bord de l'ouverture, soit inséré dans celle-ci.
  37. Dispositif selon l'une des revendications 34 à 36, caractérisé en ce que l'on peut poser sur la base (162) de l'appareil resp. sur la plaque de couverture (1613), en l'appuyant le cas échéant sur la sous-structure, un châssis (1618) comprenant, à un niveau proche de l'extrémité supérieure du récipient de traitement (1626), une plaque (1621) pourvue d'une ouverture (1624) qui est coaxiale, dans le sens vertical, avec la découpure (1612) de la base (162) de l'appareil et qui est en contact, au moins avec des parties de son bord intérieur, avec la paroi extérieure du récipient de traitement (1626).
  38. Dispositif selon la revendication 37, caractérisé en ce que des moyens de support flexibles et élastiques partant du bord de l'ouverture de la plaque (1621) du châssis (1618) arrivent au niveau de la paroi extérieure du récipient de traitement en tant que moyens de centrage et de stabilisation.
  39. Dispositif selon l'une des revendications 34 à 38, caractérisé en ce que la pièce saillante de fixation (1627) est reliée de manière détachable au récipient de traitement, et peut notamment être couplée avec celui-ci par enclenchement.
  40. Dispositif selon l'une des revendications 34 à 39, caractérisé en ce qu'il comprend, outre le récipient de traitement mentionné, une série de récipients de traitement supplémentaires exécutés de manière identique, les pièces saillantes de fixation associées, ainsi que des dispositifs d'appui supplémentaires associés à chaque fois aux récipients de traitement et identiques au dispositif d'appui mentionné, et en ce que l'on peut produire, outre le champ de commande magnétique mentionné, et grâce à la base de l'appareil, des champs de commande magnétiques supplémentaires associés aux récipients de traitement individuels.
  41. Dispositif selon l'une des revendications 34 à 36, caractérisé en ce qu'un tenon (1622) se dresse depuis un fond du resp. d'un manchon de revêtement (1614) inséré dans la découpure de la base (162) de l'appareil, lequel tenon avance dans un alésage d'appui de la pièce saillante de fixation (1627), et en ce que le dispositif d'éléments de commande se présente sous la forme d'un aimant permanent en couronne (101Z) à magnétisation diamétrale qui est entraíné par le champ magnétique rotatif du système de production de champ magnétique produit entre les éléments polaires (1611, 1611a) et qui est soulevé en même temps que la pièce saillante de fixation afin de supporter cette dernière et le récipient de traitement (1626) avec son contenu liquide (Fig. 23 et 24).
  42. Dispositif selon la revendication 41, caractérisé en ce que la pièce saillante de fixation (1627) est pourvue d'un élément de moyeu contenant l'alésage d'appui pour le tenon (1622) et d'un couvercle prévu au niveau de son extrémité supérieure et empiétant sur l'embouchure du manchon de revêtement, et sur le côté supérieur duquel un dispositif de maintien concentrique ou excentrique saisissant le récipient de traitement (1626) respectif au niveau de son extrémité inférieure fait saillie vers le haut.
  43. Dispositif selon la revendication 42, caractérisé en ce qu'un manchon (102Z) possédant, notamment, des surfaces frontales coniques est inséré dans un alésage axial de l'élément de moyeu de la partie saillante de fixation (1627), en ce que le tenon (1622) passe à travers l'alésage de ce manchon avec du jeu, et en ce que des bagues de centrage (102Z) supérieure et inférieure posées sur le tenon (1622) et qui sont pourvues de surfaces frontales coniques correspondantes sont pressées avec une force de précontrainte réduite contre les surfaces frontales coniques correspondantes du manchon (102Z) (Fig. 26).
  44. Dispositif selon la revendication 1, caractérisé en ce que les moyens de commande comprennent une base de l'appareil qui produit un champ de commande magnétique rotatif et un dispositif d'éléments de commande magnétiques durs ou mous (116Z ; 123Z, 128Z) accouplé au récipient de traitement et entrant en interaction avec le champ de commande magnétique mobile de la base de l'appareil, la base (110Z) de l'appareil étant pourvue d'une découpure (113Z) et contenant, dans la zone de cette découpure, près de son côté supérieure et/ou près de son côté inférieur, les pôles du système de production de champ magnétique produisant le champ de commande magnétique rotatif, et le dispositif d'éléments de commande se trouvant essentiellement au niveau vertical de ces pôles ou au niveau vertical entre ces pôles et formant également, avec le système de production de champ magnétique, les moyens de support verticaux, et en ce que, en outre, le diamètre intérieur de la découpure (113Z) de la base (110Z) de l'appareil est supérieur au diamètre extérieur d'une bague de maintien (114Z) du récipient de traitement en forme de cylindre creux ou encore, en ce que le diamètre intérieur d'une bague de support d'appui (124Z') insérée dans la découpure (113Z) est supérieur au diamètre extérieur d'un épaulement (121Z) du récipient de traitement pourvu d'un diamètre réduit, de manière à ce que, lorsque le dispositif d'éléments de commande (116Z ; 123Z) est entraíné par le champ de commande magnétique rotatif, l'axe longitudinal du récipient de traitement (117Z) soit déplacé sur des trajectoires circulaires situées dans des plans horizontaux, tandis que, en même temps, le récipient de traitement tourne dans le sens opposé autour de son axe longitudinal en raison du roulement de la bague de maintien (114Z) du récipient de traitement sur la surface intérieure de la découpure (113Z) resp. du roulement de la surface extérieure de l'épaulement (121Z) du récipient de traitement sur la surface intérieure de la bague de support d'appui (124Z) (Fig. 27 à 31).
  45. Dispositif selon la revendication 44, caractérisé en ce que le dispositif d'éléments de commande est formé par un aimant permanent en couronne (128Z) inséré dans la bague de maintien (114Z) du récipient de traitement et qui, pendant la marche, est situé à un niveau vertical entre les éléments polaires supérieurs et inférieurs (127Z) du système de production de champ magnétique.
  46. Dispositif selon la revendication 45, caractérisé en ce qu'il comprend, outre le récipient de traitement mentionné, une série de récipients de traitement supplémentaires exécutés de manière identique et de systèmes de production de champs magnétiques associés, qui sont ordonnés par groupes de quatre, des courants alternatifs déphasés étant appliqués aux enroulements d'excitation des systèmes de production de champs magnétiques de manière à ce que les récipients de traitement individuels avec leur contenu de liquide se trouvant dans des paires contiguës exécutent des mouvements de sens contraire et en opposition de phase.
  47. Dispositif selon l'une des revendications 10, 20 ou 21, caractérisé en ce que l'aimant en couronne ou système magnétique en couronne (1918) est entouré partiellement par un écran statique HT (1918) fait d'un matériau magnétique doux, de manière à ce que la surface frontale de l'aimant en couronne ou système magnétique en couronne représentant les différents pôles magnétiques soit libre, tandis que l'aimant en couronne ou système magnétique en couronne est couvert par l'écran statique magnétique HT sur les surfaces extérieures émettant des champs magnétiques de dispersion, de manière à ce que, à l'intérieur d'un agencement matriciel de récipients de traitement et de systèmes de production de champs magnétiques associés, des systèmes contigus de récipients de traitement avec leurs aimants en couronne ou systèmes magnétiques en couronne associés ne s'influencent pas (Fig. 17).
EP98913671A 1997-03-06 1998-03-06 Dispositif permettant de remuer, de melanger ou d'agiter des liquides, notamment a des fins d'equilibrage de temperature, de concentration et de centrifugation Expired - Lifetime EP0966321B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE19709237A DE19709237A1 (de) 1997-03-06 1997-03-06 Einrichtung zum Rühren, Durchmischen oder Bewegen von Flüssigkeiten
DE19709236A DE19709236A1 (de) 1997-03-06 1997-03-06 Rühreinrichtung
DE19709236 1997-03-06
DE19709237 1997-03-06
DE19724046 1997-06-07
DE19724046A DE19724046A1 (de) 1997-06-07 1997-06-07 Rühreinrichtung
PCT/EP1998/001303 WO1998039089A1 (fr) 1997-03-06 1998-03-06 Dispositif permettant de remuer, de melanger ou d'agiter des liquides, notamment a des fins d'equilibrage de temperature, de concentration et de centrifugation

Publications (2)

Publication Number Publication Date
EP0966321A1 EP0966321A1 (fr) 1999-12-29
EP0966321B1 true EP0966321B1 (fr) 2001-11-07

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EP98913671A Expired - Lifetime EP0966321B1 (fr) 1997-03-06 1998-03-06 Dispositif permettant de remuer, de melanger ou d'agiter des liquides, notamment a des fins d'equilibrage de temperature, de concentration et de centrifugation

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US (1) US6332705B1 (fr)
EP (1) EP0966321B1 (fr)
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WO (1) WO1998039089A1 (fr)

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US7296924B2 (en) * 2004-02-17 2007-11-20 Advanced Analytical Technologies, Inc. Vortexer
US8211386B2 (en) 2004-06-08 2012-07-03 Biokit, S.A. Tapered cuvette and method of collecting magnetic particles
TWI301033B (en) * 2005-09-05 2008-09-11 Qisda Corp Display apparatus
US7731414B2 (en) * 2007-02-08 2010-06-08 Instrumentation Laboratory Company Reagent cartridge mixing tube
US7883265B2 (en) * 2007-06-01 2011-02-08 Applied Biosystems, Llc Devices, systems, and methods for preparing emulsions
TW200933555A (en) * 2008-01-25 2009-08-01 Chin-Sung Chang Rotary display stand
JP5557732B2 (ja) * 2010-12-28 2014-07-23 株式会社ヤクルト本社 混合装置
US9511334B2 (en) 2013-08-29 2016-12-06 Burrell Scientific LLC Clamp for a fluid container and method of use thereof
CN110102359B (zh) * 2019-05-29 2022-02-01 张丽 一种检验科防污样本储存装置
CN116651277A (zh) * 2023-06-05 2023-08-29 深圳市爱康生物科技股份有限公司 一种试剂混匀装置及医疗设备
CN118527082B (zh) * 2024-07-24 2024-10-08 国镓芯科(成都)半导体科技有限公司 一种可稳定转动反应釜的装置

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US4390283A (en) 1979-09-04 1983-06-28 Beckman Instruments, Inc. Magnetic strirrer for sample container
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US5399013A (en) * 1994-03-07 1995-03-21 Sawyer; Michael A. Mixing device
DE9406450U1 (de) 1994-04-18 1994-09-29 Herz, Helmut, Dr.-Ing., 80997 München Magnet-Rühreinrichtung
DE29709966U1 (de) 1997-06-07 1997-08-14 Herz, Helmut, Dr.-Ing., 85764 Oberschleißheim Rühreinrichtung

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DE59802061D1 (de) 2001-12-13
US6332705B1 (en) 2001-12-25
WO1998039089A1 (fr) 1998-09-11
EP0966321A1 (fr) 1999-12-29

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