EP0201767A2 - Mélangeur cyclone à mélange continu de matières pulvérulentes avec des liquides - Google Patents

Mélangeur cyclone à mélange continu de matières pulvérulentes avec des liquides Download PDF

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Publication number
EP0201767A2
EP0201767A2 EP86105547A EP86105547A EP0201767A2 EP 0201767 A2 EP0201767 A2 EP 0201767A2 EP 86105547 A EP86105547 A EP 86105547A EP 86105547 A EP86105547 A EP 86105547A EP 0201767 A2 EP0201767 A2 EP 0201767A2
Authority
EP
European Patent Office
Prior art keywords
pump wheel
ring
baffle
mixing
mixing 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.)
Granted
Application number
EP86105547A
Other languages
German (de)
English (en)
Other versions
EP0201767B1 (fr
EP0201767A3 (en
Inventor
Roland Dr. Karg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ytron Dr Karg GmbH
Original Assignee
Ytron Dr Karg GmbH
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
Application filed by Ytron Dr Karg GmbH filed Critical Ytron Dr Karg GmbH
Priority to AT86105547T priority Critical patent/ATE64691T1/de
Publication of EP0201767A2 publication Critical patent/EP0201767A2/fr
Publication of EP0201767A3 publication Critical patent/EP0201767A3/de
Application granted granted Critical
Publication of EP0201767B1 publication Critical patent/EP0201767B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/60—Pump mixers, i.e. mixing within a pump
    • B01F25/64—Pump mixers, i.e. mixing within a pump of the centrifugal-pump type, i.e. turbo-mixers
    • B01F25/642—Pump mixers, i.e. mixing within a pump of the centrifugal-pump type, i.e. turbo-mixers consisting of a stator-rotor system with intermeshing teeth or cages

Definitions

  • the invention relates to a cyclone mixing device for the continuous mixing of powdery substances with liquids, with a feed device for powdery substances and with a mixing chamber arranged below the feed device, in the upper area of which a tangential suction pipe for liquids is provided and in the lower one
  • a pump wheel is arranged in the area with a dispersing device surrounding it, a centrifugal flow to be generated with the pump wheel, which is led through the dispersing device in its lower area and is carried out through an outlet arranged in the lower area of the mixing chamber from the mixing chamber.
  • a dispersing device in which the problem substances are processed in batches.
  • this device in which the shear forces required for dispersion are generated by a toothed ring, it is disadvantageous that a controllable sequence of passages of the powdery substance is not achieved by the dispersing unit.
  • other powder fractions are not or only less often passed through the dispersing head, so that they are not broken down or broken down too little to be able to develop their effectiveness. With this device, it is not possible to achieve exactly repeatable results.
  • a device is also known in which thickeners and / or stabilizers which are difficult to digest are mixed more or less well with the liquid discontinuously in a mixer.
  • the inadequately wetted dry product is then colloidally digested and deagglomerated in an in-line disperser.
  • the dispersing device a sufficiently well dispersed end product is achieved, but the batch as a whole is not sufficiently homogeneous since the flow device is fed with lumps and agglomerates. As a result, the concentration of the dispersed end product is also non-uniform. In order to achieve a sufficiently homogeneous batch, the dispersion process must necessarily be repeated.
  • the batch must be sent in a circuit over a container with a jet mixer (for even suspension).
  • a jet mixer for even suspension
  • the risk of the solution being overused due to the repeated circulation of the product is significantly reduced.
  • a mixing device is also known for thickeners, in which the dry products are sucked into the liquid via an injector.
  • This device has its limit of applicability when powder which is not easily flowable is to be used or when high concentrations are required.
  • an injector can at most ensure that primary particle agglomerates are wetted. Colloidal disruption of every single particle is not possible.
  • a further mixing device dry substances are metered from a feed device into a dissolving chamber.
  • the dry products are forcibly combined with the liquid, which is also regulated in the amount.
  • the invention has for its object to provide a cyclone mixing device of the type mentioned which, despite the oppositely influencing parameters, high degree of dispersion on the one hand and high throughput on the other hand, produces a qualitatively very good and quantitatively very large power yield and is extremely simple .
  • the dispersing device of the cyclone mixing device is designed as a lamellar ring which is fixed relative to the pump wheel and which has baffle lamellae which are distributed uniformly over the circumference and extend essentially radially outward and the inner end sections of which radially outer boundary of the pump wheel are arranged immediately adjacent.
  • the impact lamellae extend essentially in the radial direction.
  • the impact lamellae can be pivoted through an acute angle ⁇ with respect to the radial direction.
  • the baffle plates are swiveled from the radial direction by an acute angle a in the direction of rotation of the pump wheel, which means that the particles thrown out of the pump wheel area hit the baffle plates at a less acute angle that the efficiency of the dispersion is increased.
  • the baffle plates of the exchangeable plate ring are inclined at an acute angle ⁇ from the radial direction against the direction of rotation. In this case, agglomerated particles are still thrown against the inner walls of the lamella at a very acute angle, so that there is still a sufficient dispersing effect, but at the same time an increased throughput is achieved.
  • the baffle plates extend in the area adjacent to the pump wheel beyond the pump wheel base plate on which the vanes of the pump wheel are fastened. This ensures a constant transition of the solution flowing in the lower area of the mixing chamber from the pump wheel into the lamella ring.
  • the lamellar ring and the pump wheel are arranged essentially at the same height.
  • the height between the lamellar ring and the pump wheel can be varied.
  • the base ring of the lamellar ring, on which the impact lamellas are attached is arranged lower than the pump wheel. This embodiment can bring an additional dispersion effect in that the centrifugal flow from the pump wheel arranged higher must flow down over a kind of step onto the lower ring of the lamellar ring.
  • baffle plates according to the invention are oriented essentially in the radial direction and since the volume flow flowing out between the baffle plates emerges from the plate ring essentially in the radial direction, it is favorable for reasons of fluid mechanics to discharge the outlet from the mixing chamber essentially in to be aligned in the same direction as the impact slats.
  • the sections of the baffle plates lying radially further inward are preferably to be carried out on the same plane as the pump wheel.
  • a preferred development of the invention consists in that a further pump wheel is arranged downstream of the pump wheel and arranged coaxially to the disk ring. After passing through the fin ring, the powder-liquid mixture first reaches the further pump wheel before it is carried out of the mixing chamber.
  • This measure has the advantage that an even faster throughput can be achieved.
  • sticking of the mixing chamber is avoided in the case of strongly hygroscopic powder types.
  • the cyclone mixing device 1 has a feed device 3 through which the powdery dry product is introduced into the mixing chamber 5 provided below the feed device.
  • an intake pipe 7 opening tangentially into the mixing chamber is provided in the upper region of the mixing chamber 5.
  • the pump wheel 9 is arranged substantially at the same height as the lamella ring 11, so that the centrifugal flow from the pump wheel 9 can flow through the lamella ring 11 essentially horizontally through the channels formed by the baffle plates 13. After exiting the plate ring 11, the solution is discharged from the mixing chamber through a common outlet 15.
  • the lamellar ring 11 is fastened to the wall of the mixing chamber and is therefore arranged in a fixed manner with respect to the pump wheel 9.
  • Fig. 2 the concentric arrangement of the plate ring 11 and the pump wheel 9 in the mixing chamber 5 is drawn out on an enlarged scale.
  • the pump wheel 9 rotates counterclockwise as shown by arrow 17.
  • the centrifugal flow located in the lower region of the mixing chamber 5 is pressed outwards by the spirally arranged vanes 19 of the pump wheel 9 into the fixed lamellar ring 11.
  • the particles in the flow, which have not yet been dispersed hit the impingement lamellae 13 and are split there.
  • the dispersed solution is brought together on the outer circumference of the lamellar ring and discharged through the outlet 15.
  • baffle lamellae 13 are evenly distributed over the circumference of the lamellar ring 11 and that they extend outward in a substantially radial direction.
  • the inner end sections of the baffle plates are arranged directly adjacent to the radially outer boundary of the pump wheel 9. This illustration also shows that the baffle plates 13 are flat. Through the outlet nozzle 15, the dispersed solution is carried out in the tangential direction from the mixing chamber 5.
  • Fig. 3 two mutually different paths are shown on which particles thrown out of the pump wheel 9 through the lamella ring during the Split and then run.
  • a still agglomerated particle in accordance with the path 21 strikes the impact lamella 13, is split there and then continues on the path 21 out of the lamella ring 11.
  • the path 23 it is also possible that particles , which are expressed in a somewhat more tangential direction from the impeller 9, hit the walls of two adjacent baffle plates 13 several times. In this case too, despite the multiple dispersing action, a very good overall throughput is guaranteed by the lame wreath.
  • the effect of the dispersion can also be influenced by varying the mutual distance between the two adjacent baffle plates 13. According to FIG. 3, this distance is chosen to be smaller than the radial extent of the adjacent baffle plates 13. This ensures that particles thrown out of the pump wheel 9 must hit a baffle plate at least once.
  • a special arrangement of the lamellar ring 11 to the pump wheel 9 is shown insofar as the impact lamellae 13 of the lamellar ring 11 extend beyond the pump wheel base disk 27 in the area adjacent to the pump wheel 9.
  • the vertical extent of the baffle plates 13 and the wing 19 of the pump wheel 9 are approximately the same size.
  • the base ring 25 of the disk ring 11 is located approximately at the same height as the impeller base disk 27.
  • baffle plates 13 overlap the outer end portion of the impeller base plate 27, a continuous transition of the flow from the impeller 9 to the plate ring 11 is ensured.
  • a further cyclone mixing device is shown in the purely schematic longitudinal section of FIG. 5. It differs from the mixing device shown in the previous figures in that a further pump wheel 28 is connected downstream of the lamellar ring 13. It lies under the pump wheel 9, which is illustrated in particular in FIG. 2, and is arranged coaxially to it. In the example shown here, the two pump wheels 9 and 28 are connected to one another in a rotationally fixed manner.
  • FIGS. 6 and 7. An embodiment of the further pump wheel 28 is shown by way of example in FIGS. 6 and 7. It differs essentially from the pump wheel 9 described above by the configuration of the vanes 19 ′ which are arranged on the base disk 27. Accordingly, the wings initially rise steeply in their course from the inner region to the outer edge of the base plate 27, and then fall off slightly.
  • the pump wheel 9 can also be designed in the manner shown.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Cyclones (AREA)
EP86105547A 1985-05-17 1986-04-22 Mélangeur cyclone à mélange continu de matières pulvérulentes avec des liquides Expired - Lifetime EP0201767B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86105547T ATE64691T1 (de) 1985-05-17 1986-04-22 Zyklon-mischvorrichtung zum kontinuierlichen mischen von pulverigen stoffen mit fluessigkeiten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853517879 DE3517879A1 (de) 1985-05-17 1985-05-17 Zyklon-mischvorrichtung zum kontinuierlichen mischen von pulverigen stoffen mit fluessigkeiten
DE3517879 1985-05-17

Publications (3)

Publication Number Publication Date
EP0201767A2 true EP0201767A2 (fr) 1986-11-20
EP0201767A3 EP0201767A3 (en) 1987-12-23
EP0201767B1 EP0201767B1 (fr) 1991-06-26

Family

ID=6271041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105547A Expired - Lifetime EP0201767B1 (fr) 1985-05-17 1986-04-22 Mélangeur cyclone à mélange continu de matières pulvérulentes avec des liquides

Country Status (4)

Country Link
US (1) US4729663A (fr)
EP (1) EP0201767B1 (fr)
AT (1) ATE64691T1 (fr)
DE (2) DE3517879A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290033B1 (fr) * 1987-05-08 1992-09-23 A. BERENTS GMBH & CO. KG Homogénéisateur pour la production de produits liquides
EP0291820B1 (fr) * 1987-05-21 1992-11-25 Bayer Ag Mélangeur pour mélanger deux ou plusieurs fluides, en particulier pour initier ou entretenir une réaction sous agitation
EP0613522B1 (fr) * 1991-11-12 1996-09-18 SCHREYÖGG, Josef Appareil de formation d'une emulsion carburant-eau et utilisation de cet appareil
DE10260040A1 (de) * 2002-12-19 2004-07-15 Braun Gmbh Mischeinrichtung
US7464835B2 (en) 2002-12-19 2008-12-16 Braun Gmbh Preparing and dispensing mixed beverages
WO2016016755A1 (fr) * 2014-08-01 2016-02-04 Ichemad -Profarb Sp. Z O.O. Disperseur de flux
WO2025131432A1 (fr) 2023-12-21 2025-06-26 Farco-Pharma Gmbh Kit (kit de pièces) ou ensemble à usage médical

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850704A (en) * 1986-08-28 1989-07-25 Ladish Co. Two stage blender
CA2100873A1 (fr) * 1991-05-28 1992-11-29 Terrance Bruce Mazer Dispositif pour melanger une poudre dans un liquide
US5326165A (en) * 1991-06-26 1994-07-05 Irvine Scientific Sales Co. Mixing apparatus
WO1994022566A1 (fr) * 1993-04-02 1994-10-13 Irvine Scientific Sales Co. Appareil de dissolution
US6254267B1 (en) * 1997-11-06 2001-07-03 Hydrotreat, Inc. Method and apparatus for mixing dry powder into liquids
DE19812407A1 (de) * 1998-03-20 1999-09-23 Michael Marmetschke Verfahren und Vorrichtung zur Herstellung von Imprägniermitteln
US6200937B1 (en) 1998-06-09 2001-03-13 Neutrogena Corporation Anti-residue shampoo and liquid toiletry production method
EP1169130A1 (fr) 1998-10-14 2002-01-09 Delsys Pharmaceutical Corporation Dispositif de dispersion de poudre fluidisee
DE10305881A1 (de) * 2003-02-13 2004-09-02 Braun Gmbh Vorrichtung zur Zubereitung von Mischgetränken
US20080175094A1 (en) * 2007-01-19 2008-07-24 Bryan Henry Solid Charging System
US20140262338A1 (en) * 2013-03-15 2014-09-18 Schlumberger Technology Corporation Blender system with multiple stage pumps

Family Cites Families (14)

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US423285A (en) * 1890-03-11 Machine for agitating liquids
US1354489A (en) * 1916-06-07 1920-10-05 Johnson John Mixer
US1768956A (en) * 1929-01-10 1930-07-01 Turbo Mixel Corp Mixing apparatus
DE967436C (de) * 1951-03-03 1957-11-14 Hans Kotthoff Kreiselmischer mit den Mischkreisel umgebendem Widerstands-Elementenkranz
US3606270A (en) * 1970-05-14 1971-09-20 Ludish Co Continuous power blender
US3820759A (en) * 1972-06-05 1974-06-28 Hege Avanced Syst Corp Centrifugal mixing apparatus and method
US4136971A (en) * 1975-04-22 1979-01-30 Varlamov Vladimir M Apparatus for creating acoustic oscillations in a running liquid medium
FI52028C (fi) * 1976-01-13 1977-06-10 Outokumpu Oy Vaahdotuskenno.
US4062526A (en) * 1976-01-26 1977-12-13 Green Charles A Method of and apparatus for conditioning pulp
DE2805942C2 (de) * 1978-02-13 1986-09-18 Alwin 2800 Bremen Berents Vorrichtung zum Homogenisieren fließfähiger Stoffe
DE2844398C2 (de) * 1978-10-12 1985-11-28 Heinrich Frings Gmbh & Co Kg, 5300 Bonn Verfahren und Vorrichtung zum Dispergieren eines Gases in einer Flüssigkeit
FR2466271A1 (fr) * 1979-10-05 1981-04-10 Trailigaz Dispositif pour melanger deux fluides, notamment de l'air ozone avec de l'eau
EP0048312A1 (fr) * 1980-09-19 1982-03-31 Nemo Ivarson Procédé et dispositif de mélange continu d'un liquide avec une poudre
DE3243671A1 (de) * 1982-11-25 1984-05-30 Karg Ytron Gmbh Vorrichtung zum kontinuierlichen mischen pulvriger stoffe mit fluessigkeiten

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290033B1 (fr) * 1987-05-08 1992-09-23 A. BERENTS GMBH & CO. KG Homogénéisateur pour la production de produits liquides
EP0291820B1 (fr) * 1987-05-21 1992-11-25 Bayer Ag Mélangeur pour mélanger deux ou plusieurs fluides, en particulier pour initier ou entretenir une réaction sous agitation
EP0613522B1 (fr) * 1991-11-12 1996-09-18 SCHREYÖGG, Josef Appareil de formation d'une emulsion carburant-eau et utilisation de cet appareil
DE10260040A1 (de) * 2002-12-19 2004-07-15 Braun Gmbh Mischeinrichtung
US7464835B2 (en) 2002-12-19 2008-12-16 Braun Gmbh Preparing and dispensing mixed beverages
WO2016016755A1 (fr) * 2014-08-01 2016-02-04 Ichemad -Profarb Sp. Z O.O. Disperseur de flux
WO2025131432A1 (fr) 2023-12-21 2025-06-26 Farco-Pharma Gmbh Kit (kit de pièces) ou ensemble à usage médical

Also Published As

Publication number Publication date
US4729663A (en) 1988-03-08
EP0201767B1 (fr) 1991-06-26
DE3517879C2 (fr) 1990-02-22
EP0201767A3 (en) 1987-12-23
DE3517879A1 (de) 1986-11-20
DE3679935D1 (de) 1991-08-01
ATE64691T1 (de) 1991-07-15

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