EP1799336B9 - Static mixer - Google Patents

Static mixer Download PDF

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Publication number
EP1799336B9
EP1799336B9 EP05789001A EP05789001A EP1799336B9 EP 1799336 B9 EP1799336 B9 EP 1799336B9 EP 05789001 A EP05789001 A EP 05789001A EP 05789001 A EP05789001 A EP 05789001A EP 1799336 B9 EP1799336 B9 EP 1799336B9
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EP
European Patent Office
Prior art keywords
mixing
shear
passage
static mixer
housing
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.)
Active
Application number
EP05789001A
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German (de)
French (fr)
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EP1799336B1 (en
EP1799336A1 (en
Inventor
Wilhelm A. Keller
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Medmix Systems AG
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Medmix Systems AG
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Publication of EP1799336A1 publication Critical patent/EP1799336A1/en
Publication of EP1799336B1 publication Critical patent/EP1799336B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B05C17/00509—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container of the bayonet type
    • 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
    • B01F25/421—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 by moving the components in a convoluted or labyrinthine path
    • B01F25/423—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 by moving the components in a convoluted or labyrinthine path by means of elements placed in the receptacle for moving or guiding the components
    • B01F25/4233—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 by moving the components in a convoluted or labyrinthine path by means of elements placed in the receptacle for moving or guiding the components using plates with holes, the holes being displaced from one plate to the next one to force the flow to make a bending movement
    • 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
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4312—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor having different kinds of baffles, e.g. plates alternating with screens
    • 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
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed 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
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • 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
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00503—Details of the outlet element
    • B05C17/00506—Means for connecting the outlet element to, or for disconnecting it from, the hand tool or its container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/22—Mixing of ingredients for pharmaceutical or medical compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application

Definitions

  • the present invention relates to a static mixer for two components, comprising an input part and a housing with mixing elements arranged therein according to the preamble of patent claim 1.
  • a static mixer according to the preamble of claim 1 is known from US-A-4 068 830 known, wherein the shear apertures are pinholes, which are followed by the known mixing helixes.
  • mixers having disc-shaped mixing elements, with one or more openings.
  • GB-A-1 188 516 discloses a mixer with a stack of disks arranged in the mixer housing and each having an opening, the disks being arranged so that the openings are respectively rotated by 180 °.
  • US-A-2,125,245 discloses an emulsifying apparatus having discs arranged in a housing and each having either a plurality of small openings or a larger opening.
  • US-A1-2003 / 0179648 discloses a mixer with mixing chambers, between which conventional mixing helices can be arranged.
  • Fig. 1 shows a longitudinal section of a mixer 1 according to the invention, which is attached to a two-component cartridge 2 and has a housing 3 with input part 4.
  • a housing 3 with input part 4.
  • various mixing elements In the cylindrical housing part 5 are various mixing elements.
  • a conventional mixing coil 6 In the middle section of the mixing elements, a conventional mixing coil 6 is arranged, the new mixing elements 7 on both sides, see also FIGS. 2 and 3 , connect.
  • the new mixing element is designed as a shear aperture and has a disc 8, which is fastened to a hub 9 and has a passage 10.
  • the passage 10 is arranged twisted to each subsequent element, for example by 180 °.
  • the shape of the passage is chosen so that the liquids are subjected to a higher speed or shearing stress and then create vortices, whereby a better mixing of even the smallest amounts is guaranteed. This shape is not bound to the shape shown and may be different.
  • Fig. 1 As seen from the entrance, four conventional shutter blades are used on four shutter blades, followed by four shutter blades.
  • Fig. 5 another order is shown, e.g. B. on five spirals follow four shear apertures and then again five mixing spirals.
  • mixing spirals and shear shutters can be combined as desired so that a mixer can be optimally adapted to the materials and geometrical conditions to be mixed.
  • the mixer has in its input part 4, two inlets 11 and 12, which are inserted in this embodiment in the outlets 13 and 14 of the cartridge 2.
  • the mixer input part 4 further has locking elements 15 on the cartridge and corresponding locking elements 16 on the mixer input part.
  • the locking elements can also be designed like a bayonet.
  • Fig. 4 the various mixing elements are shown in a perspective view, wherein one recognizes the shear plates 7 with their passages 10 and the conventional coil 6.
  • the aperture passage 10A of the first shear aperture 7A is aligned with respect to the outlet openings of the inlets 11 and 12.
  • the longitudinal axis of the shear aperture passage 10 substantially coincides with the connection axis of the two inlet outlet openings.
  • the orientation longitudinal axis shear aperture passage to the outlets can also be different, z. B. be at right angles to it.
  • the mixer input part is connected via a connecting part 20 with the mixing elements and can be integrally formed.
  • the two substances from the two reservoirs 17 and 18 of cartridge 2 are transferred under pressure into the mixer inlet.
  • the two substances come together and are pressed together through the passage 10A of the shear aperture 7A.
  • the shape of the shear aperture passage affects the shear stress and vortex formation, respectively, and can result in better mixing of the two substances.
  • mixing apertures with a suitable passage is suitable for mixing media of different viscosities, especially if very small quantities have to be dispensed dropwise.
  • the diameter of the mixing elements can be about 1 mm.
  • shear apertures are not tied to the cylindrical form shown by way of example.
  • Both the mixer housing, or its hollow, the mixing elements receiving part, as well as the mixing elements and the shear plates can also have other shapes and cross-section, for example, rectangular or square.

Abstract

The static mixer for two components comprises a housing with an inlet section and mixing elements that are arranged in the housing. At least one of the mixing elements is designed, in contrast to mixing helixes of the prior art, as a disk-shaped shear plate having a passage in its disk. Such shear elements allow mixing even of smallest quantities that are possibly dispensed drop by drop, as higher shearing rates are produced near the passages of the shear plates during dispensing and vortices are created on their outlet sides. This is very advantageous especially in medical applications of such mixers.

Description

Die vorliegende Erfindung bezieht sich auf einen statischen Mischer für zwei Komponenten, mit einem Eingangsteil und einem Gehäuse mit darin angeordneten Mischelementen gemäss Oberbegriff von Patentanspruch 1.The present invention relates to a static mixer for two components, comprising an input part and a housing with mixing elements arranged therein according to the preamble of patent claim 1.

Ein statischer Mischer gemäss Oberbegriff von Patentanspruch 1 ist aus der US-A-4 068 830 bekannt, wobei die Scherblenden Lochblenden sind, die von den bekannten Mischwendeln gefolgt werden.A static mixer according to the preamble of claim 1 is known from US-A-4 068 830 known, wherein the shear apertures are pinholes, which are followed by the known mixing helixes.

Das Mischen von zwei Substanzen mittels eines statischen Mischers ist seit sehr langem bekannt und die überwiegende Mehrheit der statischen Mischer enthält wendelförmige Mischelemente, wie sie beispielsweise in der US-A-5 609 271 des gleichen Anmelders beschrieben sind. Bei diesem Prinzip werden durch mehrmaliges Umschichten die zwei Substanzen miteinander vermischt. Um eine qualitativ gute Mischung zu erzielen, werden bei den Mischern verschiedene Parameter unterschiedlich dimensioniert, beispielsweise die Geometrie des Mischelementes, die Anzahl von Mischelementen und der Mischerdurchmesser. Bei den statischen Mischern geht man bei Medien mit mittleren bis höheren Viskositäten im Allgemeinen von einer laminaren Strömung aus. Dies trifft auch für Mischer mit sehr kleinen Durchmessern von z.B. von 1 - 2 mm und Komponenten mit niedrigen Viskositäten zu.The mixing of two substances by means of a static mixer has been known for a very long time and the vast majority of static mixers contains helical mixing elements, such as those in the US-A-5 609 271 of the same applicant are described. In this principle, the two substances are mixed together by repeated Umschichten. In order to achieve a good quality mixture, different parameters are dimensioned differently in the mixers, for example the geometry of the mixing element, the number of mixing elements and the mixer diameter. In static mixers, medium-to-high viscosity media are generally considered to have a laminar flow. This also applies to mixers with very small diameters of eg 1 - 2 mm and components with low viscosities.

Es sind ferner Mischer bekannt, die scheibenförmige Mischelemente aufweisen, mit einer Öffnung oder mehreren Öffnungen.There are also known mixers having disc-shaped mixing elements, with one or more openings.

GB-A-1 188 516 offenbart einen Mischer mit einem Stapel von Scheiben, die im Mischergehäuse angeordnet sind und je eine Öffnung aufweisen, wobei die Scheiben so angeordnet sind, dass die Öffnungen jeweils um 180° verdreht sind.. GB-A-1 188 516 discloses a mixer with a stack of disks arranged in the mixer housing and each having an opening, the disks being arranged so that the openings are respectively rotated by 180 °.

US-A-2 125 245 offenbart einen Emulgierapparat mit Scheiben, die in einem Gehäuse angeordnet sind und je entweder eine Vielzahl von kleinen Öffnungen oder eine grössere Öffnung aufweisen. US-A-2,125,245 discloses an emulsifying apparatus having discs arranged in a housing and each having either a plurality of small openings or a larger opening.

US-A1-2003/0179648 offenbart einen Mischer mit Mischkammern, zwischen denen auch herkömmliche Mischwendeln angeordnet sein können. US-A1-2003 / 0179648 discloses a mixer with mixing chambers, between which conventional mixing helices can be arranged.

Bei keinem dieser Mischer wird ein kleines Austragvolumen angesprochen.None of these mixers address a small discharge volume.

Es ist von diesem Stand der Technik ausgehend Aufgabe der vorliegenden Erfindung einen Mischer mit Mischelementen anzugeben, der auch bei sehr kleinen Austragmengen eine gute Durchmischung der beiden Substanzen gewährleistet. Diese Aufgabe wird mit dem Mischer gemäss Anspruch 1 gelöst.It is based on this prior art object of the present invention to provide a mixer with mixing elements, which ensures a good mixing of the two substances even at very low discharge rates. This object is achieved with the mixer according to claim 1.

Die Erfindung wird im Folgenden anhand von Zeichnungen eines Ausführungsbeispiels näher erläutert.The invention will be explained in more detail below with reference to drawings of an embodiment.

Die Erfindung wird im Folgenden anhand von Zeichnungen eines Ausführungsbeispiels näher erläutert.

Fig. 1
zeigt im Schnitt einen erfindungsgemässen Mischer,
Fig. 2
ist eine Detailvergrösserung aus Fig. 1,
Fig. 3
ist eine Draufsicht auf Fig. 2,
Fig. 4
zeigt in perspektivischer Sicht die Mischelemente von Fig. 1 und
Fig. 5
zeigt schematisch eine Ausführungsvariante.
The invention will be explained in more detail below with reference to drawings of an embodiment.
Fig. 1
shows in section a mixer according to the invention,
Fig. 2
is an enlargement of detail Fig. 1 .
Fig. 3
is a top view on Fig. 2 .
Fig. 4
shows a perspective view of the mixing elements of Fig. 1 and
Fig. 5
schematically shows a variant embodiment.

Fig. 1 zeigt im Längsschnitt einen erfindungsgemässen Mischer 1, der an einer Zwei-Komponenten-Kartusche 2 befestigt ist und ein Gehäuse 3 mit Eingangsteil 4 aufweist. Im zylindrischen Gehäuseteil 5 befinden sich verschiedenartige Mischelemente. Im mittleren Abschnitt der Mischelemente ist eine herkömmliche Mischwendel 6 angeordnet, der sich beidseitig neue Mischelemente 7, siehe auch Fig. 2 und 3, anschliessen. Fig. 1 shows a longitudinal section of a mixer 1 according to the invention, which is attached to a two-component cartridge 2 and has a housing 3 with input part 4. In the cylindrical housing part 5 are various mixing elements. In the middle section of the mixing elements, a conventional mixing coil 6 is arranged, the new mixing elements 7 on both sides, see also FIGS. 2 and 3 , connect.

Das neue Mischelement ist als Scherblende ausgebildet und weist eine Scheibe 8 auf, die an einer Nabe 9 befestigt ist und ein Durchlass 10 aufweist. Wie insbesondere aus Fig. 2 hervorgeht, ist der Durchlass 10 zu jedem nachfolgenden Element verdreht angeordnet, beispielsweise um 180°. Die Form der Durchlass ist so gewählt, dass die Flüssigkeiten einer höheren Geschwindigkeit, bzw. Scherbeanspruchung unterworfen werden und anschliessend Wirbel entstehen, wodurch eine bessere Durchmischung auch von kleinsten Mengen gewährleistet wird. Dabei ist diese Form nicht an die gezeigte Form gebunden und kann unterschiedlich sein.The new mixing element is designed as a shear aperture and has a disc 8, which is fastened to a hub 9 and has a passage 10. As in particular from Fig. 2 As can be seen, the passage 10 is arranged twisted to each subsequent element, for example by 180 °. The shape of the passage is chosen so that the liquids are subjected to a higher speed or shearing stress and then create vortices, whereby a better mixing of even the smallest amounts is guaranteed. This shape is not bound to the shape shown and may be different.

Nach der Scherung und Verwirbelung durch eine Anzahl von Scherblenden wird durch die nachfolgende herkömmliche Mischwendeln ein Mischvorgang durch Umschichtung eingeleitet, um eine bestmögliche Verteilung der Komponenten über den Querschnitt zu erzielen.After shearing and swirling through a number of shearing apertures, a mixing operation is initiated by the subsequent conventional mixing helixes in order to achieve the best possible distribution of the components across the cross section.

Im Ausführungsbeispiel gemäss Fig. 1 folgen vom Eingang her gesehen, auf vier Scherblenden fünf herkömmliche Mischwendeln, denen sich wieder vier Scherblenden anschliessen. In Fig. 5 ist eine andere Reihenfolge dargestellt, z. B. auf fünf Wendeln folgen vier Scherblenden und daraufhin wieder fünf Mischwendeln. Mit diesen zwei Ausführungsbeispielen soll angedeutet werden, dass Mischwendeln und Scherblenden beliebig kombinierbar sind, so dass ein Mischer optimal an die zu mischenden Materialien und geometrischen Verhältnissen angepasst werden kann.In the embodiment according to Fig. 1 As seen from the entrance, four conventional shutter blades are used on four shutter blades, followed by four shutter blades. In Fig. 5 another order is shown, e.g. B. on five spirals follow four shear apertures and then again five mixing spirals. These two exemplary embodiments are intended to indicate that mixing spirals and shear shutters can be combined as desired so that a mixer can be optimally adapted to the materials and geometrical conditions to be mixed.

Der Mischer weist in seinem Eingangsteil 4 zwei Einlässe 11 und 12 auf, die in diesem Ausführungsbeispiel in die Auslässe 13 und 14 von Kartusche 2 gesteckt sind. Der Mischereingangsteil 4 weist ferner Verriegelungselemente 15 an der Kartusche und entsprechende Verriegelungselemente 16 am Mischereingangsteil auf. Die Verriegelungselemente können auch bajonettartig ausgebildet sein.The mixer has in its input part 4, two inlets 11 and 12, which are inserted in this embodiment in the outlets 13 and 14 of the cartridge 2. The mixer input part 4 further has locking elements 15 on the cartridge and corresponding locking elements 16 on the mixer input part. The locking elements can also be designed like a bayonet.

In Fig. 4 sind die verschiedene Mischelemente in perspektivischer Darstellung dargestellt, wobei man die Scherblenden 7 mit ihren Durchlässen 10 und die herkömmliche Wendel 6 erkennt. In Fig. 4 ist ersichtlich, dass in diesen Beispiel der Blendendurchlass 10A der ersten Scherblende 7A bezüglich der Austrittsöffnungen der Einlässe 11 und 12 ausgerichtet ist. Dabei fällt die Längsachse des Scherblenden-Durchlasses 10 im wesentlichen mit der Verbindungsachse der beiden Einlass-Austrittsöffnungen zusammen. Die Ausrichtung Längsachse Scherblenden-Durchlass zu den Auslässen kann jedoch auch anders, z. B. rechtwinklig dazu sein.In Fig. 4 the various mixing elements are shown in a perspective view, wherein one recognizes the shear plates 7 with their passages 10 and the conventional coil 6. In Fig. 4 it is evident that in these Example, the aperture passage 10A of the first shear aperture 7A is aligned with respect to the outlet openings of the inlets 11 and 12. In this case, the longitudinal axis of the shear aperture passage 10 substantially coincides with the connection axis of the two inlet outlet openings. However, the orientation longitudinal axis shear aperture passage to the outlets can also be different, z. B. be at right angles to it.

Ausserdem ist gezeigt, dass das Mischereingangsteil über ein Verbindungsteil 20 mit den Mischelementen verbunden ist und einstückig geformt werden kann.In addition, it is shown that the mixer input part is connected via a connecting part 20 with the mixing elements and can be integrally formed.

Die zwei Substanzen aus den beiden Vorratsbehältern 17 und 18 von Kartusche 2 werden unter Druck in den Mischereinlass transferiert. Im Zwischenraum 19 zwischen dem Verbindungsteil 20 und der ersten Scherblende gelangen die zwei Substanzen zusammen und werden gemeinsam durch den Durchlass 10A der Scherblende 7A gepresst. Durch die Form des Scherblendendurchlasses wird die Scherbeanspruchung, bzw. die Wirbelbildung beeinflusst und kann eine bessere Vermischung der zwei Substanzen bewirken.The two substances from the two reservoirs 17 and 18 of cartridge 2 are transferred under pressure into the mixer inlet. In the space 19 between the connecting part 20 and the first shear aperture, the two substances come together and are pressed together through the passage 10A of the shear aperture 7A. The shape of the shear aperture passage affects the shear stress and vortex formation, respectively, and can result in better mixing of the two substances.

Wie Eingangs betont worden ist, eignet sich die Verwerdung von Mischblenden mit einem geeigneten Durchlass für das Vermischen von Medien mit unterschiedlichen Viskositäten, insbesondere falls sehr kleine Mengen tropfenweise ausgetragen werden müssen. Dabei kann der Durchmesser der Mischelemente bei ca. 1 mm liegen.As has been pointed out in the introduction, the use of mixing apertures with a suitable passage is suitable for mixing media of different viscosities, especially if very small quantities have to be dispensed dropwise. The diameter of the mixing elements can be about 1 mm.

Die Erfindung, das Vorsehen von Scherblenden, ist nicht an die beispielhaft gezeigte zylindrische Form gebunden. Sowohl das Mischergehäuse, bzw. sein hohler, die Mischelemente aufnehmender Teil, als auch die Mischelemente und die Scherblenden können auch andere Formen und Querschnitt aufweisen, z.B. rechteckig oder quadratisch ausgebildet sein. Es kann auch mehr als ein Scherblenden-Durchlass an einer Scherblende vorhanden sein und dessen Form kann z.B. rund, oval, oder keilförmig, rechteckig oder dreieckig sein.The invention, the provision of shear apertures, is not tied to the cylindrical form shown by way of example. Both the mixer housing, or its hollow, the mixing elements receiving part, as well as the mixing elements and the shear plates can also have other shapes and cross-section, for example, rectangular or square. There may also be more than one shear aperture on a shear aperture and its shape may be, for example, round, oval, or wedge-shaped, rectangular, or triangular.

Claims (4)

  1. Static mixer for two components, comprising a housing with an inlet section and mixing elements that are arranged in the housing, of which at least one mixing element is a mixing helix (6), at least one group comprising at least two mixing elements in the form of disk-shaped shear plates (7, 7A) being additionally provided whose disks (8) each have at least one passage (10, 10A), characterised in that the passage or passages (10, 10A) of each successive shear plate is/are mutually rotationally offset by an angle.
  2. Static mixer according to claim 1, characterised in that the angle is equal to 180°.
  3. Static mixer according to claim 1 or 2, characterised in that groups of shear plates and of mixing helixes follow each other alternately.
  4. Static mixer according to one of claims 1 to 3, characterised in that the passage (10A) of the first shear plate (7A) on the inlet side is aligned with respect to the mixer inlet outlet openings (11, 12), the longitudinal axis of the shear plate passage (10A) substantially coinciding with the connecting line between the two inlet outlet openings or being perpendicular thereto.
EP05789001A 2004-10-15 2005-10-11 Static mixer Active EP1799336B9 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH17072004 2004-10-15
PCT/CH2005/000593 WO2006039827A1 (en) 2004-10-15 2005-10-11 Static mixer

Publications (3)

Publication Number Publication Date
EP1799336A1 EP1799336A1 (en) 2007-06-27
EP1799336B1 EP1799336B1 (en) 2009-07-22
EP1799336B9 true EP1799336B9 (en) 2010-02-03

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EP05789001A Active EP1799336B9 (en) 2004-10-15 2005-10-11 Static mixer

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US (1) US20080056065A1 (en)
EP (1) EP1799336B9 (en)
JP (1) JP2008516745A (en)
CN (1) CN101056697B (en)
DE (1) DE502005007759D1 (en)
ES (1) ES2329491T3 (en)
WO (1) WO2006039827A1 (en)

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EP1799336B1 (en) 2009-07-22
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CN101056697A (en) 2007-10-17
ES2329491T3 (en) 2009-11-26
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DE502005007759D1 (en) 2009-09-03
EP1799336A1 (en) 2007-06-27

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