EP1280598B1 - Melangeur par cavitation - Google Patents

Melangeur par cavitation Download PDF

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Publication number
EP1280598B1
EP1280598B1 EP01929373A EP01929373A EP1280598B1 EP 1280598 B1 EP1280598 B1 EP 1280598B1 EP 01929373 A EP01929373 A EP 01929373A EP 01929373 A EP01929373 A EP 01929373A EP 1280598 B1 EP1280598 B1 EP 1280598B1
Authority
EP
European Patent Office
Prior art keywords
flow
difficult
medium
flow around
flow chamber
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
EP01929373A
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German (de)
English (en)
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EP1280598A2 (fr
Inventor
Rolf Schüler
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Schueler & Locher Oeg
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Schueler & Locher Oeg
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Publication of EP1280598A2 publication Critical patent/EP1280598A2/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • B01F25/23—Mixing by intersecting jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B01F25/4335—Mixers with a converging-diverging cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/434—Mixing tubes comprising cylindrical or conical inserts provided with grooves or protrusions

Definitions

  • the invention relates to a device for Mixing the components of a flowing through Mass flows, the components being particularly solid, can be liquid or gaseous, by means of a hydrodynamic super cavitation field to a mixture in particular to produce an emulsion or suspension.
  • hydrodynamic cavitation consists in the formation of a vapor gas mixture filled cavities, the so-called cavitation bubbles, inside a rapidly flowing Liquid flow or at edge areas one in the flowing liquid flow arranged poorly flowable body, each as a result of the Liquid movement (flow) conditional local Pressure reduction.
  • Hydrodynamic cavitation occurs so in all hydraulic systems where large Differences in pressure occur, such as turbines, pumps and High-pressure nozzles.
  • cavitation and the associated ones Effects for mixing the components of a use flowing mass flows. So you can for example two different liquids or one Liquid and a solid (particle) or a Mix liquid and gas together.
  • the mixing, emulsifying and dispersing action cavitation is based on a large number of Force applied by collapsing Cavitation bubbles originate on the one to be treated Mixture of components.
  • the imploding of Cavitation bubbles near the interface of two Phase areas become liquid-solid from the dispersion the solid phase (particles) in the liquid phase (Liquid) and from the formation of a suspension accompanied.
  • US-A-3834982 is an apparatus for generating described a suspension of fiber materials.
  • the Device consists of a housing with a Entry opening for the supply of components of a Fiber material suspension and an exit opening for the Removal of the cavitated fiber material suspension and a flow chamber with one placed in it one piece existing, difficult to flow around cylindrical body (which because of its function in general is also called cavitator).
  • the component stream flows through the flow chamber and the one placed therein cylindrical body which is difficult to flow around and which is transverse to Flow direction is arranged so that this one local rejuvenation of the fiber material suspension generated.
  • This creates a hydrodynamic one behind the cylinder Forms cavitation field, i.e. the cylinder creates a spatial area in the flowing Mass flow in which in a dynamic process Cavitation bubbles arise, exist and collapse (implode).
  • the cavitation mixer described in SU-A-1088782 also has a facility with which the Cavitation field with another by means of a Air pressure source generated pressure vibrations superimposed can be.
  • the cavitation mixer disclosed in SU-A-1678426 has an axially elastically mounted, difficult to flow around Body, its own resonance vibrations in the liquid medium should cause.
  • DE-A-3610744 describes a device for direct Ventilation and circulation, especially of waste water, called a cavitation field by means of a wing screw generated and air mixed in the water.
  • US-A-4127332 discloses another mixing device, who uses cavitation for this purpose.
  • each with only one Cavitation field is generated by two different ones
  • Mixing components of a system is that Cavitation effect and thus mixing effect in cavitation mixers, that create a so-called super cavitation field, that is, a superposition of several cavitation fields, significantly improved.
  • DE-A-4433744 discloses a cavitation mixer the body that is difficult to flow around (cavitator) has a truncated cone made up of several heavy ones flow around sub-bodies is formed, between which there is a flow-through cavity in each case.
  • This hard to flow body is in a solid Position arranged in a passage chamber, which - in Flow direction seen - in the entire area of the difficult to flow around a constant body has circular cross section.
  • a first cavitation field is based on conventional ones Generated by flowing around the entire body.
  • the cavities through which flow is possible are one Another source of cavitation fields caused by the Flow in these cavities arise, in particular also outwards into those flowing around the entire body Currents are directed so that the cavitation bubbles in the flowable cavities also outwards to go beyond the conventional cavitation field.
  • the spatial Superposition of the individual cavitation fields creates a so-called super cavitation field and causes one Multiplication of the cavitation effect of each one Cavitation.
  • Hydrodynamic super cavitation generators as in DE-A-4433744 represent effective mixing devices, that can be used, one out of several Components existing fluid flowing through processing, for example mixing, emulsifying, homogenize, disperse or dissolve, or Saturate liquids with gases.
  • Super cavitation generators are universal Devices for processing a wide range of Products in chemical, petrochemical, cosmetic and pharmaceutical industries, as well as in the Ceramics and food industries and other industries.
  • Typical basic technical data of a hydrodynamic super cavitation generator and parameters of the medium to be processed are: productivity 0.1 to 500 m 3 / h inlet pressure 0.3 to 1.2 MPa medium viscosity 0.001 to 30 Pa s medium temperature 5 to 250 ° C Total length 50 to 800 mm Working chamber diameter 15 to 300 mm Dimensions 0.4 to 40 kg minimal useful life 30,000 h
  • the mixing and homogenization processes in the mixer are based on the use of hydrodynamic cavitation and are bound to such physical effects as pressure waves, accumulation, self-excited vibrations, vibration turbulization and rectified diffusion, for example, which arise when cavitation bubbles collapse.
  • the volumetric concentration of the cavitation bubbles in the apparatus reaches orders of magnitude of 1 to 10 10 l / m 3 .
  • pressure pulses are initiated which reach 10 3 MPa and more, just as temperatures of around 5000 K occur in the bubble when a cavitation bubble imploses (see, for example, VDI-Nachzin, April 1, 1999, No. 13 , "Pollutants in ultrasound").
  • Such high pressure pulses contribute to the large volumetric concentration of the bubbles in the working area of the mixer so that the pulse power supplied to a unit volume of the medium to be processed is 10 4 to 10 5 kW / m 3 . It should also be mentioned that a vacuum zone with a pressure of 4 to 10 kPa is created in the working chamber of the mixer, which makes it possible to inject various liquid and gaseous components directly into the mixer.
  • a converging or diverging pipe section is disclosed a long way before or after the body, which is difficult to flow around.
  • EP-A-0644271 is also a hydrodynamic one Supercavitation mixer reveals a difficult to flow around Contains body made up of at least two Consists of elements that form their own Ensure cavitation fields.
  • These poles are like that designed that nested and each with individual devices can be connected, so that they are axially displaced relative to each other can. This way the individual can be difficult flowable body forming elements, in Flow direction axially shifted against each other and so arranged at different distances relative to each other become.
  • EP-A-644271 also teaches that it is used to optimize the Processes of dispersion and emulsification expedient is in the hydrodynamic flow of components at least in a section of its local Constriction - or immediately after - a gaseous component introduce.
  • the elements of the bad flow Body can also be made from an elastic non-metallic material.
  • the cavitation mixer can also add another difficult to flow around Body included, which is behind the first difficult-to-flow body, which it resembles, in the direction of flow is arranged and with it by an elastic Element slidable along the axis of the flow channel connected is.
  • a device for mixing the components or Components of a mass flow flowing through at least one hydrodynamic super cavitation field to provide without additives (such as additives or Emulsifiers) are used to improve the mixing effect or to improve the mixing result or one at all To get mixture.
  • a device for mixing the components of a provide mass flows flowing through, wherein the mixing effect or the mixing result regulated to the Type and concentrations of the components to be mixed in other words, can be adapted to the Properties of the special to be homogenized in each case Systems and corresponding process and Result parameters.
  • a device for mixing the components or Components of a mass flow flowing through according to of the present invention - hereinafter Called super cavitation mixer - includes a housing with at least one entrance opening and at least one Output port. In the at least one entrance opening will mix all or part of the Mass flows initiated, and after exposure to a hydrodynamic super cavitation field Mass flow through the at least one outlet opening discharged.
  • the essential components include Super cavitation mixer a flow chamber, the part of the housing, and a body that is difficult to flow around, by means of a holder in the flow chamber is arranged.
  • the body is difficult to flow around at least two sub-areas that are difficult to flow around, the each for a local flow restriction in the Flow chamber flowing through mass flow in the area of the body, which is difficult to flow around.
  • the cross section the flow chamber, which is perpendicular to its central axis is taken at least in part of the area the flow chamber, the body which is difficult to flow around surrounds in the direction of flow of the Flow chamber mass flow flowing through larger. This widening part of the flow chamber is essential for the production of the invention highly effective super cavitation field.
  • the difficult to flow around and the difficult flowable bodies as a whole are the sources for several cavitation fields that overlap and thus form a super cavitation field. That from that Super cavitation mixer according to the present invention provided super cavitation field is suitable for various components particularly effectively mix or homogenize. With the Super cavitation mixers can usually do this themselves components that are extremely difficult to mix - without more Additives such as emulsifiers - especially homogeneous and extremely long-term stable mixtures be transferred. If the components are liquid, so if emulsions are obtained, one of the components is liquid and the other firm, that is, exists, for example from particles with a certain size distribution, so you get suspensions in which the particle size is significantly reduced. The invention Super cavitation mixer can also be used for this to gaseous and liquid components mix or a gaseous component especially effectively in one or more liquid components dissolve.
  • Some examples of possible mixtures are water-diesel suspensions, the homogenization of Food or colors, or the interference or Dissolution of chlorine gas in water.
  • each of different atomic or molecular Composition must be.
  • two Components to be mixed each have the same chemical Have composition, only that one Component in the liquid phase and the other Component is in the solid phase.
  • Two or more Components to be mixed can also be the same in each case contain chemical components, only in others Concentrations.
  • a Repatriation or multiple treatment of one already with the super cavitation mixer according to the invention treated multi-component mass flow possible if this is advantageous for process engineering or other reasons is.
  • Another advantageous embodiment of the invention consists of several super cavitation mixers according to the invention to couple, such that their respective Super cavitation fields in a common area of one common flow chamber are superimposed on each other, whereby the mixing effect of each In turn, supercavitation fields are potentiated.
  • Another advantage of such a design is that one same total flow - compared to one appropriately sized individual super cavitation mixers with a big, powerful pump - then only several small pumps are needed, which is process engineering is much more effective.
  • the body around which the body is difficult to flow Super cavitation mixer axially along the direction of the Central axis of the flow chamber are shifted.
  • Another advantageous embodiment of the invention according to claim 3 or 4 is accordingly that the hard to knock over part of a multitude individual partial body that is difficult to flow around ( flowable areas correspond) that exists connected and arranged so that they all - or only a few or only one - independently of each other along the direction of the central axis of the flow chamber can be moved.
  • This allows the super cavitation field and thus the mixing effect of the Super cavitation mixer can also be adjusted that depending on the process parameters and the type desired properties of the components to be mixed of the multicomponent mass flow such as homogeneity and Stability can be adjusted optimally.
  • the advantageous embodiment of the invention according to claim 5 is at least one of the difficult to flow Partial areas or partial body of the difficult flowable body so designed to be Cross section perpendicular to the central axis of the Flow chamber is taken at the end of the section or partial body that the input opening of the Housing facing is smaller than at the end that the Output opening of the housing is turned.
  • the flow chamber of Super cavitation mixer a bulge of their walls on, for example, in a bulge-like protuberance is formed all around along its circumference.
  • This Bulge can relate to an appropriate location be placed on the body that is difficult to flow around, such that the super cavitation field is influenced in a targeted manner and its mixing effect is optimized. It is obvious, that when the body is difficult to flow around along the direction of the central axis of the flow chamber can be moved, even if this is only possible for a partial body of him, the mixing effect of Super cavitation field in connection with this bulge particularly well on the type of to be mixed Components and other process parameters set and can be optimized.
  • the flow is difficult Body at least partially from an elastic non-metallic material or has one corresponding coating on. This will make one destructive repercussions of the cavitation fields on the Equipment itself avoided.
  • part of the to be mixed Mass flows or a certain component thereof an appropriately designed bracket and one appropriately designed bodies that are difficult to flow around, the respective corresponding through cavities have, introduced directly into the flow chamber become.
  • This allows the super cavitation field or its
  • the mixing effect can be influenced in a targeted manner, especially depending on the type of mixing components, such that an optimal Mixing effect is achieved.
  • reference numeral 100 denotes one device each for mixing the components of a mass flow flowing through by means of a hydrodynamic supercavitation field, i.e. one Superposition of several cavitation fields. This The device according to the invention is described below Called super cavitation mixer 100.
  • FIGS 1a and 1b only serve the essential properties of an inventive Super cavitation mixer 100 are illustrated but not otherwise to be understood as restrictive.
  • FIG 1a is a schematic cross-sectional view in FIG Longitudinal direction of a super cavitation mixer 100 according to an exemplary first embodiment of the Invention.
  • the invention comprises Super cavitation mixer 100 a housing 1, the one Has inlet opening 2 and an outlet opening 3.
  • the entrance opening 2 part or all of the multicomponent mass flow to be mixed fed, typically by means of a pump device (Not shown).
  • the ones to be mixed Components of the mass flow can be solid, liquid or be gaseous, that is, after treatment
  • the mixed mass flow withdrawn is, for example, one Emulsion, a suspension, one with dissolved gas saturated liquid or other, essentially fluid mixtures or batches.
  • the housing 1 further includes one Flow chamber 4 and one therein by means of a holder 6 arranged difficult to flow around body 8.
  • Die Bracket 6 is so in the case of the first embodiment designed and arranged by another Opening 5 in the housing 1 projects into the housing, such that the body 8 is difficult to flow around in the Flow chamber 4 is positioned.
  • FIG. 1a there is the flow chamber 4, which is difficult to flow around Body 8 and the bracket 6 each from one rotationally symmetrical bodies that are arranged that their axes of symmetry coincide, that is, are equal to the central axis of the flow chamber 4.
  • the holder 6 in FIG essentially from a hollow rod, i.e. assigns one cavity 63 passing therethrough with an inlet opening 61 and an outlet opening 62.
  • the difficult to flow around body 8 a central, through bore 83 along its central axis the associated inlet opening 81 and outlet opening 82.
  • the outlet opening 62 of the rod or bracket 6 is with the inlet opening 81 of the body which is difficult to flow around connected, and the bracket 6 and the difficult to flow around Body 8 are so in the housing 1 or Flow chamber 4 arranged that their middle or Axes of symmetry coincide and the outlet end opening 82 of the body 8 of the exit opening which is difficult to flow around 3 of the housing 1 faces.
  • the difficult to flow around body 8 at least two difficult partial areas 80 around which there are flows a flow-through space 87 is located.
  • the difficult Sub-areas 80 around which flow around each have a local effect Flow restriction in the flow chamber 4.
  • FIG. 2a is an enlarged schematic cross-sectional view in the longitudinal direction of the exemplary difficult to flow around body 8 of the exemplary first Embodiment of Fig. 1a shown.
  • the outer perimeter (the Circumferential line) of the end of the body 8 which is difficult to flow around according to the first embodiment has two local ones Minima and two local maxima.
  • the last one Partial area 80 which is difficult to flow around here is a hollow one End region 84, in which also the above end outlet opening 82nd opens.
  • the cross section of the hollow end region 84 or the cavity 84, which is perpendicular to the central axis of the Flow chamber is taken, is in the direction of flow of the flowing through the flow chamber 4 Mass flows are steadily increasing.
  • the truncated cones 80 are each one behind the other are arranged so that the area of their cross section, the perpendicular to the central axis of the flow chamber 4 is taken, becomes larger seen in the direction of flow.
  • the (blunted) tip of everyone The truncated cone is the through the flow chamber 4th mass flow flowing through, while the Base of each truncated cone of the outlet opening 3 of the Housing is closest. This also applies to the last two sub-areas 80 in which it is difficult to flow around the first embodiment.
  • the truncated cones are designed and arranged that - seen in the direction of flow - everyone subsequent truncated cone a little further - in the vertical direction to the central axis of the flow chamber 4 - in the Current protrudes than the previous truncated cones. This applies analogously to the last two partial areas 80 which are difficult to flow around.
  • the flow chamber 4 in the first embodiment rotationally symmetrical, moving in the direction of flow gradually widening flow chamber section 41, whose cross-sectional area perpendicular to the central axis of the Flow chamber 4 is circular and in Flow direction increases steadily, and in which the difficult flowable body 8 is arranged such that it is a creates a highly effective super cavitation field.
  • the Flow chamber 4 further at its beginning, that is at the end that the input opening 2 of the housing 1 at the next one is in the direction of flow narrowing flow chamber portion 42 to which the widening flow chamber section 41 adjoined.
  • the cross-sectional area perpendicular to Central axis of the flow chamber 4 of the narrowing Flow chamber section 42 is circular and takes in Flow direction steadily, so that a flow restriction is provided and the formation of the Cavitation fields in the downstream area of the flow chamber 4 by means of the heavy arranged therein flowable body 8 is further optimized.
  • FIG. 1b is a schematic cross-sectional view in FIG Longitudinal direction of a super cavitation mixer 100 according to an exemplary second embodiment of the Invention, which is a modification of the exemplary first embodiment of Fig. 1a.
  • the second differs Embodiment of the invention from the first only by two modifications.
  • the first modification affects the hard flowable body 8, which in the second embodiment is designed so that each of its difficult to flow around Subareas 80, the shape of a truncated cone has, is formed as a partial body 10.
  • Subareas 80 the shape of a truncated cone has, is formed as a partial body 10.
  • the clearances 87 between the partial areas 80 which are difficult to flow around or Partial bodies 10 are by means of spacers 9th realized.
  • Fig. 2b which is an enlarged schematic cross-sectional view in the longitudinal direction of the exemplary body 8 which is difficult to flow around exemplary second embodiment of FIG. 1b represents, with the analog Fig. 2a.
  • the second modification concerns the flow chamber 4, which in the second embodiment additionally one Bulge 20 has.
  • Fig. 1b joins the expanding Flow chamber section 41 of the flow chamber 4 Area of the flow chamber, the one rotationally symmetrical bulge 20 in the wall of the Flow chamber 4 has along its circumference, wherein this bulge 20 partially in the end region of the body 8 is difficult to flow around.
  • the through the Bulge 20 conditional enlargement of the cross section of the Flow chamber 4 in the direction of flow can have the cavitation effect and mixing effect of the super cavitation mixer 100 according to the second embodiment and optimize.
  • the bulge 20 are also elsewhere, i.e. she can in Direction of flow also seen directly behind - or a little bit behind - the body, which is difficult to flow around 8, or it can also be completely in the range of body 8 which is difficult to flow around - for example, its Middle or its end around - be arranged.
  • the bulge 20 in a corresponding embodiment is not necessarily must be rotationally symmetrical, even if the Flow chamber 4 is rotationally symmetrical, as well the bulge 20 is not continuous or complete formed along the circumference of the flow chamber 4 have to be.
  • Form and arrangement of a - or also several - bulges 20 results solely from the fact that the Cavitation effect and mixing effect of the invention Super cavitation mixer 100 reinforced and optimized becomes.
  • This expanding part of the Flow chamber 4 is essential for the generation of highly effective supercavitation field according to the invention, because the then difficult to flow around Body 8 caused cavitation fields one particularly get high cavitation or mixing effect, that means their superposition - the super cavitation field - is able to be a particularly homogeneous and special long-term stable mixing of the components by one Flow chamber 4 to flowing mass flows generate, compared to the previous state of the art Technology known mixtures, even for according to the prior art components that are difficult to mix in technology, and also without Additives that have a mixing effect (additives), as has been shown experimentally.
  • this expanding part of the flow chamber 4 can generally be implemented so that the Flow chamber 4 according to the present invention as whole or only in a partial area or in several, not necessarily related sub-areas, the or the at least part of the difficult surrounded around body 8, is designed such that the cross section of the flow chamber 4 in this itself expanding part of the flow chamber 4 in Flow direction of the through the flow chamber 4th mass flow flowing through it becomes larger.
  • This widening part of the flow chamber 4 can, in particular, through a constantly expanding, rotationally symmetrical flow chamber section 41 as in Fig. 1a shown can be realized, or alone by a front portion of a bulge 20, or by a combination of two such areas 41 and 20 as shown in Fig. 1b.
  • Others not necessarily rotationally symmetrical or completely around the Flow chamber 4 around corresponding corresponding individual or distributed sub-areas of a Flow chamber 4, if all of them at least partly in the area of the body 8 which is difficult to flow around lie and their cross-section in the flow direction of the mass flow flowing through the flow chamber 4 is also suitable.
  • the body that is difficult to flow around produces when it is the mass flow to be mixed in the flow chamber 4 flows around, several cavitation fields, which are superimpose each other, and thus particularly in Flow direction behind the body 8, which is difficult to flow around form a super cavitation field. It should be noted that this super cavitation field - depending on the specific one Design of the body 8, which is difficult to flow around Flow chamber 4 and their relative arrangement to each other - also partially or completely around the heavy flows around body 8 extends.
  • the holder 6 for the body 8 which is difficult to flow around is so in the first and second embodiments designed (as a rod) and arranged so that it can an opening 5 in the housing 1 in the housing and the Flow chamber 4 protrudes.
  • the bracket 6 can be configured in principle as desired, for example as Toroidal device that spokes a wheel resembles, such that they are completely in the Flow chamber 4 of the housing 1 can be arranged for example on a portion of the inner wall of the Flow chamber 4, similar to that in DE-A-4433744.
  • the holder 6 can comprise a device or be connected to a device that is suitable for the body 8 which is difficult to flow around. alone or in connection with the bracket 6 - in Area of the flow chamber 4 along the direction of To move the central axis of the flow chamber.
  • the body 8, which is difficult to flow around can be relative as a whole in relation to the expanding part of the Flow chamber 4 (realized for example by a widening flow chamber section 41 and / or a bulge 20 of the flow chamber 4) shifted and be positioned such that the mixing effect of the body 8 difficult to flow around Super cavitation field can be optimally adjusted, both in terms of the type of components to be mixed as well as in relation to other process parameters and / or target parameters of the desired mixed mass flow.
  • a particularly simple setting or adjustment of the super cavitation field in this way can be achieved if part or all of the flow chamber 4 transparent, for example from the corresponding Plastic, is designed so that you can directly visual can check or make this setting.
  • the individual Partial body 10 in each case by means of spacers 9 predetermined distance from each other along the central axis of the body 8 which is difficult to flow around.
  • the flowable spaces 87 between the difficult to flow Subareas 80 or difficult to flow around Partial bodies 10 of a body 8 which is difficult to flow around can be set so individually that the Mixing effect of the generated super cavitation field can be strengthened or optimized.
  • the spacers 9 can be made of an elastic Material, such as plastic, exist, so that medium flowing through the flow chamber 4, the generated cavitation fields and the partial body 10 in have a feedback relationship such that the Partial body 10 are vibrated so that again the cavitation or mixing effect of the Cavitation fields is strengthened or optimized.
  • each with a partial body 10 at its end can then be used independently are shifted along the direction of their central axis.
  • each of the sub-bodies 10 one of such configured body 8 can flow around regardless of everyone else along the direction of Central axis of the flow chamber 4 are shifted.
  • the The entirety of the hollow rods represents the bracket 6
  • other configurations are also readily available to a person skilled in the art the difficult to flow around body 8 and Bracket 6, such that one of several partial bodies 10 existing body that is difficult to flow around 8 so is designed that at least one of its partial bodies 10 regardless of everyone else along the direction of Central axis of the flow chamber 4 can be moved.
  • Partial body 10 which is difficult to flow around Body 8 typically has the shape of a truncated cone. But also related forms like the shape of a Truncated cone with wavy surface or shape a hemisphere are also suitable to To generate cavitation fields.
  • each partial area that is difficult to flow around is 80 or difficult to flow around partial body 10 of a difficult flowable body 8 so designed that Cross section perpendicular to the central axis of the flow chamber is taken, at the end of the partial body 8, that of the inlet opening 2 of the flow chamber 4 on next is smaller than at the end of the Partial body, the exit opening 3 of the Flow chamber 4 is closest.
  • truncated cones or hemispheres means this is that these are arranged one behind the other are that the surface or the outer circumference of their Cross section that is perpendicular to the central axis of the Flow chamber 4 is taken in the direction of flow seen larger, as seen in Figures 1 and 2 is.
  • the "top" of everyone The truncated cone or each hemisphere is through the mass flow flowing through the flow chamber 4 facing while the base of each truncated cone or each hemisphere of the exit opening 3 of the Housing is closest.
  • the truncated cones or hemispheres can also - in Direction seen against the flow direction (from base) - be hollowed out, i.e. the shape of have hollow truncated cones or hollow hemispheres.
  • the partial area 80 or partial body 10 has the shape a hollow or full truncated cone, as in Fig. 3a shown schematically in cross section, and have the Elevations 88 in turn in the form of small cone tips, so it is advantageous if these cone tips are like this be oriented that their axes of symmetry are all parallel to each other and to the direction of flow through the Flow chamber 4 mass flows flowing through are oriented and that each cone tip that by the Flow chamber 4 facing mass flow flowing through is, as shown in Fig. 3a (in Fig. 3a corresponds to Flow direction from left to right).
  • the small elevations 88 of course also oriented and / or designed differently be, also depending on the design of the Sub-areas 80 and sub-bodies 10 are advantageous for example, concentrically arranged, ring-like extending surveys 88 with a sharp upper Edge that through the flow chamber 4th mass flow flowing through it in whole or in part is facing.
  • the end of the body 8 is the name of the two areas 80 (plus the associated intermediate flowable Intermediate space 87) or the partial body 10, the or of all partial areas or partial bodies of the exit opening 3 of the housing 1 is closest, so to design that its cross section is perpendicular to the central axis the flow chamber 4 is taken in the direction of flow of the flowing through the flow chamber 4 Mass streams first seen larger and then smaller and then gets bigger again.
  • FIGS. 3b to 3f show the schematic cross-sectional views along the longitudinal direction or axis of symmetry of a rotationally symmetrical end portion or End part body of a body 8 which is difficult to flow around represent.
  • FIGS. 3b to 3f takes with this configuration of the difficult to flow Body 8, the surface or the outer circumference of the associated cross section in the figures from left to right right - which is the flow direction in FIGS.
  • Mass flow is - from an initial value (local minimum value) starting steadily - not necessarily linear - up to a first local maximum value to, and then steadily down to a local minimum Cross-sectional value and from then on steadily up to a global maximum at the very end of the last one Partial area or partial body. It is understood that this cross-sectional behavior is independent of whether the body that is difficult to flow around is solid or one through hole 82 has, as in Figures 3c, 3e and 3f and shown in Figures 3b and 3d.
  • the end of the difficult flow Body 8 be massive or flat - such as in 3e - or may generally have a hollow end portion 84 having the output opening 3 of the housing 1st facing, the cross section of this cavity, the perpendicular to the central axis of the flow chamber is taken in the direction of flow of the Flow chamber 4 flowing mass flow steadily becomes larger, for example in FIGS. 3b, 3c, 3d and 3f.
  • FIGS. 3b, 3c, 3d and 3f In the case of FIGS.
  • the hollow End region 84 can be designed so that each of its cross-sectional areas, which is taken lengthways and completely contains its axis of symmetry, a border line has in the direction of flow of the Flow chamber 4 seen mass flows flowing through is convex in the mathematical sense. Analog, and how shown in Fig. 3d and 3f, this border line in mathematically concave.
  • Elevations 88 are arranged, either in the form of small cone tips or in the form of concentric arranged, ring-like elevations with a sharp top edge.
  • a difficult to flow around section 80 or difficult partial body 10 which can flow around is neither rotationally symmetrical, still symmetrical in another sense, still continuous have to be. Similar to EP-A-644271, this can be difficult partial area 80 or partial body 10 in Recesses seen through the direction of flow exhibit.
  • Figures 4a and 4b show examples of Subareas 80 or partial body 10 which are difficult to flow around, in Direction of flow seen, its cross section, perpendicular taken to the central axis of the flow chamber 4, the Area of a circle, minus several segments or circular sections 11 and / or minus several sectors or circular sections, more precisely circular rings, 12.
  • the body around 8 difficult to flow through The action of the cavitation fields is not itself damaged it is advantageous if it is at least partially consists of an elastic non-metallic material or at least partially an elastic one has non-metallic coating, for example a suitable plastic.
  • the body 8, which is difficult to flow around, and the holder 6 can generally be solid. But you can also generally with one passing through Cavity 83 and 63 designed and corresponding Openings 82 and 81 can be connected to each other so that part of the mass flow to be mixed does not have the Input opening 2 of the housing 1, but via a corresponding inlet opening 61 of the bracket 6 and a corresponding outlet end opening 82 of the difficult to flow Body 8 are inserted directly into the flow chamber can. This is particularly advantageous if it's so direct part of the to be introduced into the flow chamber mixing mass flow is gaseous and the other Part that via the input opening 2 of the housing 1st is introduced, is liquid.
  • the body 8 which is difficult to flow around naturally have more than one outlet opening 82 which depending on the desired mixing effect and Cavitation effect of the corresponding invention Super cavitation mixer 100 in a corresponding manner the entire body 8 is difficult to flow around to be ordered.
  • Fig. 2c is a difficult flow Body 8 shown, although from the outer Overall shape from that of the first or second Embodiment is the same, but also one through-going cavity 83 with a plurality of outlet openings has.
  • One of these outlet openings is already in the Figures 1a and 1b shown central outlet end opening 82nd
  • the one shown in FIG. 2c has a difficult flow Body 8, which in principle is a further development of the 2b body 8 which is difficult to flow around, a cavity 83 therethrough with intermediate outlet openings 85, each in a partial surface area the body 8 is difficult to flow around, the the inner wall of the flow chamber 4 at least partially is facing and that between two neighboring partial areas 80 or difficult to flow around partial bodies 10 around which flow is difficult Body 8 is located.
  • the one shown in Fig. 2c is heavy body 8 around which a hollow space 83 passes with outlet side openings 86, each in a Partial surface area of the body 8 which is difficult to flow around located the inner wall of the flow chamber 4th is at least partially facing and which is in the Area of a sub-area 80 that is difficult to flow around or difficult to flow around body 10 of the difficult flowable body 8 is located.
  • Outlet intermediate openings 85 still the outlet side openings 86 arranged symmetrically as shown in Fig. 2c Need to become.
  • the one going through Cavity 83 has only one or more intermediate outlet openings 85 or just one or more Outlet side openings 86 on.
  • this also through correspondingly arranged several outlet end openings 82, which are at the end of the body 8 are located and the outlet opening 3 of the housing 1st are facing to be replaced.
  • Embodiments and modifications thereof can be the supercavitation mixer according to the invention further an ultrasound device and / or laser device include the mixing action and / or cavitation optimize the entire device.
  • the body 8 which is difficult to flow around whole or in part directly exposed to ultrasound become. This displaces the difficult to flow around Body 8 as a whole and / or in corresponding Partial areas in vibrations. Regardless, you can also the mass flow flowing through at one suitable place in the flow chamber 4 - or at several positions or even in the whole Flow chamber 4 - apply ultrasound to for example turbulence, pressure waves, ultrasonic cavitation or to produce related effects that the support hydrodynamic cavitation or supplement and / or further positive influence on the Have mixing effect of the entire device. Of Furthermore, an ultrasonic device can flow around the difficult Bodies or parts of them also directly in ultrasonic vibrations move, as well as a suitable one Part of the flow chamber 4 or the entire Flow chamber 4 to the effects just described and to achieve positive effects or the like.
  • a laser device can measure the mass flow or part of it in the flow chamber 4 with laser light act, for example, also cavitation to generate or support, for example also through local warming, which also affects the Flow direction and vortex formation can have an influence.
  • a spiral device 90 consists essentially of a plurality of elements 92 in the form of helices and from an outer wall 94 which is designed that the coil device 90 at the corresponding end of the Passage chamber 4 can be arranged and fixed, for example by means of a rubber seal 96
  • Outer wall 94 encloses one that passes through Cavity in which the variety of helical elements 92 are arranged.
  • the helical elements 92 have an elongated, essentially flat or two-dimensional shape and run essentially in Direction of the flow direction through the Flow chamber 4 flowing mass flows are but so helical along this direction or helically twisted or twisted or bent, with, for example, part of its longitudinal edge are attached to the inner wall of the outer wall 94 that the mass flow flowing through into several partial flows is divided, which is also by the spiral Formation of the elements 92 each set in rotation become.
  • This principle of mixing flows using helical devices is in the art well known.
  • such a device 200 has the advantage that a total mass flow is not through a single Device through a corresponding dimensioned pump must be pressed, but that this total current to be mixed towards the individual the super cavitation mixer belonging to the device 200 100 can be divided, so that each per Super cavitation mixer 100 just a much smaller one dimensioned pump is required. This increases the Effectiveness or energy use of the facility.
  • the individual super cavitation mixer 100 connected to one another in this way and coupled that their individual flow chambers 4 seamlessly into a subsequent common flow chamber 40 pass over.
  • the exit openings 3 the housing 1 of the super cavitation mixer 100 is closed connected to a single common opening 30 or superimposed on the entrance opening of the common subsequent flow chamber 40 represents.
  • the entrance opening 30, that is, in the entrance area of the common flow chamber 40, then overlap the produced by each super cavitation mixer 100 Supercavitation. After exposure to the superimposed supercavitation fields becomes the entire mass flow flowing through the device 200 through the outlet opening 50 of the flow chamber 40 taken.
  • each other equivalent spatial areas of each Super cavitation fields are superimposed on one another. These are the areas of the strongest or optimal Cavitation effect of every super cavitation field, see above the effect of the overlay increases optimal.
  • this symmetrical type of Overlay can also be abandoned if this causes a better mixing effect or other desired effects can or should be achieved.
  • a device analogous to device 200 above, in which several super cavitation fields are superimposed, is also with those disclosed in DE-A-4433744 Super cavitation mixers possible.
  • an invention Device 100 for mixing the components of a mass flows flowing through a particularly homogeneous and extremely stable mixture of any length, even if not or only according to the state of the art difficult to mix components, and also without the use of additives (additives, Emulsifiers, etc.) to support the mixing effect.
  • the Device 100 has one in a flow chamber 4 arranged difficult to flow around body 8, the at least partially in one direction of flow widening part of the flow chamber 4 is arranged, so that the cavitation and mixing action of the of the supercavitation field which is difficult to flow around is significantly strengthened and optimized.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Accessories For Mixers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (29)

  1. Dispositif (100) pour mélanger des composants d'un courant de masse traversant, les composants pouvant être en particulier solides, liquides ou gazeux, au moyen d'un champ de supercavitation hydrodynamique, pour produire un mélange, en particulier une émulsion ou une suspension, avec
       un logement (1) qui présente une ouverture d'entrée (2) pour l'amenée d'au moins une partie du courant de masse à mélanger et une ouverture de sortie (3) pour le prélèvement du courant de masse ;
       le logement (1) présentant une chambre de passage (4) avec un corps (8) difficilement contournable, disposés au moyen d'un support (6), et
       le corps difficilement contournable (8) comportant au moins deux zones partielles difficilement contournables (80 ; 10) qui servent à produire respectivement un rétrécissement d'écoulement local, caractérisé en ce que
       la chambre de passage (4) présente à son début une section de chambre de passage allant en se rétrécissant dans la direction de l'écoulement (42), et
       en ce que le diamètre intérieur de la chambre de passage (4) en raccordement à la section de chambre de passage se rétrécissant (42), dans au moins la région qui entoure le corps difficilement contournable (8), est supérieur dans la direction d'écoulement du courant de masse traversant la chambre de passage (4).
  2. Dispositif (100) selon la revendication 1, caractérisé en ce que le corps difficilement contournable (8) peut être déplacé le long de la direction de l'axe médian de la chambre de passage (4).
  3. Dispositif (100) selon la revendication 1 ou 2, caractérisé en ce que les zones partielles difficilement contournables (80 ; 10) du corps difficilement contournable (8) sont réalisées au moyen de plusieurs corps partiels difficilement contournables (10).
  4. Dispositif (100) selon la revendication 3, caractérisé en ce qu'au moins l'un des corps partiels (10), indépendamment de tous les autres (10), peut être décalé le long de la direction de l'axe médian de la chambre de passage (4).
  5. Dispositif (100) selon l'une des revendications 1 à 4, caractérisé en ce qu'au moins l'une des zones partielles difficilement contournables (80 ; 10) est conçue de telle sorte que sa section transversale, qui est prise perpendiculairement à l'axe médian de la chambre de passage (4), sur l'extrémité du corps partiel, qui se situe au plus proche de l'ouverture d'entrée (2), est plus petite que sur l'extrémité qui se situe au plus proche de l'ouverture de sortie (3).
  6. Dispositif (100) selon la revendication 5, caractérisé en ce qu'au moins l'une des zones partielles difficilement contournables (80 ; 10) est conçue en forme de cône tronqué ou de semi-sphère.
  7. Dispositif (100) selon la revendication 5, caractérisé en ce qu'au moins l'une des zones partielles difficilement contournables (80 ; 10) est conçue en forme de cône tronqué creux ou de semi-sphère creuse.
  8. Dispositif (100) selon la revendication 5, caractérisé en ce qu'au moins l'une des zones partielles difficilement contournables (80 ; 10) est conçue de telle sorte qu'elle présente au moins, dans une zone partielle de surface, une pluralité de petits reliefs (88).
  9. Dispositif (100) selon la revendication 8, caractérisé en ce qu'au moins l'une des zones partielles difficilement contournables (80 ; 10) est conçue sous forme de cône tronqué avec une pluralité de petits reliefs (88), tandis que les petits reliefs ont respectivement la forme d'une pointe de cône, et tandis que la zone partielle de surface et l'agencement des petites pointes de cônes est caractérisé en ce que les axes de symétrie des pointes de cônes sont tous parallèles entre eux et par rapport à la direction d'écoulement du courant de masse traversant la chambre de passage (4), et en ce que chaque pointe de cône est dirigée vers le courant de masse traversant la chambre de passage (4).
  10. Dispositif (100) selon l'une des revendications 3 à 9, caractérisé en ce que la zone partielle difficilement contournable (80 ; 10), qui de toutes les zones partielles (80 ; 10) se situe au plus près de l'ouverture de sortie (3), est conçue de telle sorte que sa section transversale qui est prise perpendiculairement à l'axe médian de la chambre de passage (4), vue dans la direction d'écoulement du courant de masse traversant la chambre de passage (4), est d'abord plus grande, puis plus petite et ensuite à nouveau plus grande.
  11. Dispositif (100) selon la revendication 10, caractérisé en ce que la zone partielle difficilement contournable (80 ; 10) qui, de toutes les zones partielles (80 ; 10), se situe au plus proche de l'ouverture de sortie (3), présente une zone d'extrémité (84) creuse, qui est détournée de l'ouverture de sortie (3), tandis que la section transversale de cette zone creuse (84), qui est prise perpendiculairement à l'axe médian de la chambre de passage (4), est plus grande dans la direction d'écoulement du courant de masse traversant la chambre de passage (4).
  12. Dispositif (100) selon la revendication 11, caractérisé en ce la zone d'extrémité creuse (84) est symétrique en rotation, et son axe de symétrie se situe parallèlement à l'axe médian de la chambre de passage (4).
  13. Dispositif (100) selon la revendication 12, caractérisé en ce chaque surface de section transversale de la zone d'extrémité creuse (84), qui contient entièrement son axe de symétrie, comporte une ligne marginale qui s'étend de façon convexe vue dans la direction d'écoulement du courant de masse traversant la chambre de passage (4).
  14. Dispositif (100) selon la revendication 12, caractérisé en ce chaque surface de section transversale de la zone d'extrémité creuse (84), qui contient entièrement son axe de symétrie, comporte une ligne marginale qui s'étend de façon concave vue dans la direction d'écoulement du courant de masse traversant la chambre de passage (4).
  15. Dispositif (100) selon l'une des revendications précédentes, caractérisé en ce que
       la chambre de passage (4) est symétrique en rotation au moins partiellement, tandis que son axe médian est l'axe de symétrie, et
       le corps difficilement contournable (8) est agencé de telle sorte que son axe médian coïncide avec l'axe médian de la chambre de passage (4).
  16. Dispositif (100) selon la revendication 15, caractérisé en ce la chambre de passage (4) présente dans sa partie symétrique en rotation au moins un évasement (20) dans sa paroi le long de sa périphérie.
  17. Dispositif (100) selon la revendication 16, caractérisé en ce le corps difficilement contournable (8) est agencé de telle sorte qu'au moins un évasement (20) se situe au moins partiellement dans la région du corps difficilement contournable (8).
  18. Dispositif (100) selon la revendication 16, caractérisé en ce le corps difficilement contournable (8) est agencé de telle sorte qu'au moins un évasement (20) dans la direction d'écoulement du courant de masse traversant la chambre de passage (4) se situe directement derrière le corps difficilement contournable (8).
  19. Dispositif (100) selon l'une des revendications précédentes, caractérisé en ce que le corps difficilement contournable (8) consiste au moins partiellement en un matériau élastique non métallique.
  20. Dispositif (100) selon l'une des revendications 1 à 18, caractérisé en ce le corps difficilement contournable (8) présente au moins partiellement un revêtement élastique non métallique.
  21. Dispositif (100) selon l'une des revendications précédentes, caractérisé en ce que
       le corps difficilement contournable (8) présente une chambre creuse traversante (83) avec une ouverture d'admission (81) qui se trouve sur l'extrémité du corps difficilement contournable (8), qui se situe au plus proche de l'ouverture d'entrée (2) du logement (1), tandis que la chambre creuse (83) traversant le corps difficilement contournable (8) présente au moins une ouverture de sortie (82, 85, 86),
       le support (6) présente une chambre creuse traversante (63) avec une ouverture d'entrée (61) et une ouverture de sortie (62), cette dernière étant raccordée à l'ouverture d'entrée (81) du corps difficilement contournable (8) ; et
       le support (6) et le corps difficilement contournable (8) sont raccordés entre eux et agencés dans le logement (1), de telle sorte qu'au moyen d'une ouverture (5) dans le logement (1) et par l'intermédiaire de l'ouverture d'entrée (61) du support (6), on peut introduire une partie du courant de masse à mélanger par le biais d'au moins une ouverture de sortie (82, 85, 86) du corps difficilement contournable (8) dans la chambre de passage (4).
  22. Dispositif (100) selon la revendication 21, caractérisé en ce le support (6) englobe une tige creuse qui, par l'ouverture (5) dans le logement (1), fait saillie à travers celui-ci le long de l'axe médian de la chambre de passage (4).
  23. Dispositif (100) selon la revendication 21 ou 22, caractérisé en ce que la chambre creuse traversant le corps difficilement contournable (8) est conçue de telle sorte qu'elle présente une ouverture de sortie (82) qui se trouve sur l'extrémité du corps difficilement contournable (8) qui se situe au plus proche de l'ouverture de sortie (3) du logement (1).
  24. Dispositif (100) selon l'une des revendications 21, 22 ou 23, caractérisé en ce que la chambre creuse traversant le corps difficilement contournable (8) est conçue de telle sorte qu'elle présente au moins une ouverture de sortie (85),
       qui se trouve dans une zone partielle de surface du corps difficilement contournable (8) qui est détourné de la paroi interne de la chambre de passage (4) au moins partiellement, et
       qui se situe entre deux zones partielles limitrophes difficilement contournables (80 ; 10).
  25. Dispositif (100) selon l'une des revendications 21, 22, 23 ou 24, caractérisé en ce que la chambre creuse traversant le corps difficilement contournable (8) est conçue de telle sorte qu'elle présente au moins une ouverture de sortie (86),
       qui se trouve dans une zone partielle de superficie du corps difficilement contournable (8) qui est détourné partiellement de la paroi interne de la chambre de passage (4), et
       qui se situe au niveau d'une zone partielle difficilement contournable (80 ; 10).
  26. Dispositif (100) selon l'une des revendications précédentes, caractérisé en ce que, de plus, il est mis à disposition un dispositif pour solliciter le corps difficilement contournable (8) et/ou le courant de masse en au moins un endroit dans la chambre de passage (4) au moyen d'ultrasons.
  27. Dispositif (100) selon l'une des revendications précédentes, caractérisé en ce que, de plus, il est mis à disposition un dispositif pour générer des vibrations d'ultrasons dans le corps difficilement contournable (8) et/ou une partie de la chambre de passage (4).
  28. Dispositif (100) selon l'une des revendications précédentes, caractérisé en ce que, de plus, il est mis à disposition un dispositif pour solliciter le courant de masse dans la chambre de passage (4) au moyen de la lumière laser.
  29. Dispositif (200) pour mélanger les composants d'un courant de masse traversant, tandis que les composants peuvent en particulier être solides, liquides ou gazeux, au moyen d'une superposition d'au moins deux champs de supercavitation hydrodynamique pour produire un mélange, en particulier une émulsion ou une suspension,
       caractérisé en ce que
       le dispositif (200) présente au moins deux dispositifs (100) selon respectivement l'une des revendications 1 à 28, et une chambre de passage commune suivante (40),
       moyennant quoi
       les dispositifs (100) sont disposés et conçus de telle sorte que leurs ouvertures de sortie (3) dans leur ensemble se raccordent à l'ouverture d'entrée (30) de la chambre de passage commune suivante (40), de telle sorte que les champs de supercavitation générés par les corps difficilement contournables (8) dans la zone d'entrée de la chambre de passage commune (40) se recouvrent spatialement.
EP01929373A 2000-02-28 2001-02-28 Melangeur par cavitation Expired - Lifetime EP1280598B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10009326 2000-02-28
DE10009326A DE10009326A1 (de) 2000-02-28 2000-02-28 Kavitationsmischer
PCT/EP2001/002253 WO2001062373A1 (fr) 2000-02-28 2001-02-28 Melangeur par cavitation

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EP1280598A2 EP1280598A2 (fr) 2003-02-05
EP1280598B1 true EP1280598B1 (fr) 2004-01-21

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US (1) US6935770B2 (fr)
EP (1) EP1280598B1 (fr)
AT (1) ATE258080T1 (fr)
AU (1) AU2001256171A1 (fr)
DE (2) DE10009326A1 (fr)
WO (1) WO2001062373A1 (fr)

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WO2001062373A1 (fr) 2001-08-30
US20030147303A1 (en) 2003-08-07
EP1280598A2 (fr) 2003-02-05
DE50101363D1 (de) 2004-02-26
ATE258080T1 (de) 2004-02-15
DE10009326A1 (de) 2001-08-30
US6935770B2 (en) 2005-08-30
AU2001256171A1 (en) 2001-09-03

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