EP1572335B1 - Static lamination micro mixer - Google Patents

Static lamination micro mixer Download PDF

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Publication number
EP1572335B1
EP1572335B1 EP03780105.7A EP03780105A EP1572335B1 EP 1572335 B1 EP1572335 B1 EP 1572335B1 EP 03780105 A EP03780105 A EP 03780105A EP 1572335 B1 EP1572335 B1 EP 1572335B1
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EP
European Patent Office
Prior art keywords
micro
aperture
plate
slot
mixer according
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
EP03780105.7A
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German (de)
French (fr)
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EP1572335A2 (en
Inventor
Wolfgang Ehrfeld
Matthias Kroschel
Till Merkel
Frank Herbstritt
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.)
Ehrfeld Mikrotechnik BTS GmbH
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Ehrfeld Mikrotechnik BTS GmbH
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Publication of EP1572335A2 publication Critical patent/EP1572335A2/en
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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
    • B01F25/40—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
    • B01F25/422—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 between stacked plates, e.g. grooved or perforated plates
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/30—Micromixers
    • B01F33/301—Micromixers using specific means for arranging the streams to be mixed, e.g. channel geometries or dispositions
    • B01F33/3012—Interdigital streams, e.g. lamellae
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/30—Micromixers
    • B01F33/301—Micromixers using specific means for arranging the streams to be mixed, e.g. channel geometries or dispositions
    • B01F33/3012—Interdigital streams, e.g. lamellae
    • B01F33/30121—Interdigital streams, e.g. lamellae the interdigital streams being concentric lamellae
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S366/00—Agitating
    • Y10S366/03—Micromixers: variable geometry from the pathway influences mixing/agitation of non-laminar fluid flow

Definitions

  • the invention relates to a micromixer for mixing, dispersing, emulsifying or suspending at least two fluid phases, which must contain at least one slot plate with slot openings and an aperture plate arranged above it with blind slots.
  • the slot openings in the slot plate (s) and diaphragm plate (s) are designed as through holes.
  • Static micromixers are key elements of microreaction technology.
  • Statistical micromixers exploit the principle of multilamination to achieve rapid mixing of fluid phases by diffusion. By a geometrical configuration of alternately arranged lamellae, it is possible to ensure a good mixing in the microscopic range.
  • Multilamination mixers of structured and periodically stacked thin plates have already been extensively described in the literature; Examples of this can be found in the German patents DE 44 16 343 . DE 195 40 292 . DE 199 17 156 A1 and the German patent application DE 199 28 123 , The German patent application DE 199 27 554 also describes a micromixer for mixing two or more educts, in contrast to the multilamination mixers consisting of structured and periodically stacked thin plates, the micromixer having mixing cells.
  • Each of these mixing cells has a feed chamber to which at least two groups of channel fingers adjoin, which engage in a comb-like manner between the channel fingers to form mixing areas.
  • Above the mixing area are outlet slots that extend perpendicular to the channel fingers and through which the product exits. Due to the parallel connection in two spatial directions, a significantly higher throughput is possible.
  • the advantages achieved by the invention are that the static lamination micro mixing can be manufactured inexpensively, is easy to clean and the fluids to be mixed are mixed together quickly and effectively.
  • the pressure loss is so low that it can also be used for large throughputs.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

Die Erfindung betrifft einen Mikrovermischer zum Vermischen, Dispergieren, Emulgieren oder Suspendieren von mindestens zwei fluiden Phasen, wobei dieser mindestens eine Schlitzplatte mit Schlitzöffnungen und eine darüber angeordnete Blendplatte mit Blendschlitzen enthalten muss. Die Schlitzöffnungen in der/den Schlitzplatte(n) und Blendplatte(n) sind als durchgehende Öffnungen ausgeführt.The invention relates to a micromixer for mixing, dispersing, emulsifying or suspending at least two fluid phases, which must contain at least one slot plate with slot openings and an aperture plate arranged above it with blind slots. The slot openings in the slot plate (s) and diaphragm plate (s) are designed as through holes.

Bei statischen Mikrovermischem handelt es sich um Schlüsselelemente der Mikroreaktionstechnik. Statistische Mikrovermischer nutzen das Prinzip der Multilamination aus, um so ein schnelles Vermischen von fluiden Phasen durch Diffusion zu erreichen. Durch eine geometrische Ausgestaltung von abwechselnd angeordneten Lamellen ist es möglich, ein gutes Vermischen im mikroskopischen Bereich zu gewährleisten. Multilaminationsmischer aus strukturierten und periodisch gestapelten dünnen Platten sind bereits in der Literatur ausführlich beschrieben; Beispiele hierfür finden sich in den deutschen Patenten DE 44 16 343 , DE 195 40 292 , DE 199 17 156 A1 und der deutschen Patentanmeldung DE 199 28 123 . Die deutsche Patentanmeldung DE 199 27 554 beschreibt außerdem im Gegensatz zu den Multilaminationsmischern, die aus strukturierten und periodisch gestapelten, dünnen Platten bestehen, einen Mikrovermischer zum Mischen von zwei oder mehr Edukten, wobei der Mikrovermischer Mischzellen aufweist. Jede dieser Mischzellen weist eine Zuführkammer auf, an die mindestens zwei Gruppen von Kanalfingern angrenzen, die zur Bildung von Mischbereichen kammartig zwischen die Kanalfinger eingreifen. Über dem Mischbereich befinden sich Auslassschlitze, die sich senkrecht zu den Kanalfingern erstrecken und durch die das Produkt austritt. Durch die Parallelschaltung in zwei Raumrichtungen ist ein deutlich höherer Durchsatz möglich.Static micromixers are key elements of microreaction technology. Statistical micromixers exploit the principle of multilamination to achieve rapid mixing of fluid phases by diffusion. By a geometrical configuration of alternately arranged lamellae, it is possible to ensure a good mixing in the microscopic range. Multilamination mixers of structured and periodically stacked thin plates have already been extensively described in the literature; Examples of this can be found in the German patents DE 44 16 343 . DE 195 40 292 . DE 199 17 156 A1 and the German patent application DE 199 28 123 , The German patent application DE 199 27 554 also describes a micromixer for mixing two or more educts, in contrast to the multilamination mixers consisting of structured and periodically stacked thin plates, the micromixer having mixing cells. Each of these mixing cells has a feed chamber to which at least two groups of channel fingers adjoin, which engage in a comb-like manner between the channel fingers to form mixing areas. Above the mixing area are outlet slots that extend perpendicular to the channel fingers and through which the product exits. Due to the parallel connection in two spatial directions, a significantly higher throughput is possible.

Gegenstand der vorliegenden Erfindung ist der im Patenanspruch 1 beschriebene statische Laminationsmikrovermischer.The subject matter of the present invention is the static laminating micro-mixer described in patent claim 1.

Die mit der Erfindung erzielten Vorteile bestehen darin, dass der statische Laminationsmikrovermischer kostengünstig gefertigt werden kann, leicht zu reinigen ist und die zu mischenden Fluide schnell und effektiv miteinander vermischt werden. Zudem ist der Druckverlust so gering, dass er auch für große Durchsätze Anwendung finden kann.The advantages achieved by the invention are that the static lamination micro mixing can be manufactured inexpensively, is easy to clean and the fluids to be mixed are mixed together quickly and effectively. In addition, the pressure loss is so low that it can also be used for large throughputs.

Ausführungsbeispiele der Erfindungen sind in den Zeichnungen dargestellt und werden im nachfolgenden näher beschrieben.Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Es zeigen:

Fig. 1
schematische Darstellung des statischen Mikrovermischers bestehend aus einer Schlitz- und einer Blendplatte;
Fig. 2a
Expolsionsdarstellung eines statischen Laminationsmikrovermisches bestehend aus Gehäuseunterteil (10), Zuführkanälen (11), Schlitzplatte (20) und Blendplatte (30);
Fig. 2b
Darstellung eines statischen Laminationsmikrovermischers bestehend aus Gehäuseunterteil (10), Zuführkanälen (11), Schlitzplatte (20) und Blendplatte (30);
Fig. 3a
Draufsicht auf die Zuführkanälen (11), Schlitzöffnungen (22a, 22b) und Blendschlitzen (31) eines statischen Laminationsmikrovermischers;
Fig. 3b
Draufsicht auf die Schlitzöffnungen unterschiedlicher Geometrie und Orientierung (22) in einer Schlitzplatte (20) eines statischen Laminationsmikrovermischers;
Fig. 3c
Draufsicht auf die Schlitzöffnungen unterschiedlicher Geometrie und Orientierung (22) in einer Schlitzplatte (20) eines statischen Laminationsmikrovermischers;
Fig. 3e:
Draufsicht auf die Schlitzöffnungen unterschiedlicher Geometrie und Orientierung (22) in einer Schlitzplatte (20), wobei die Schlitzöffnungen unterschiedliche Breiten und Formen haben;
Fig. 3f:
Draufsicht auf die Schlitzöffnungen unterschiedlicher Geometrie und Orientierung (22) in einer Schlitzplatte (20), wobei die Schlitzöffnungen, die Blendschlitze (31) und/oder die Zuführkanäle (11) unterschiedliche und variable Breiten und Formen haben;
Fig. 4a
Draufsicht auf einen statischen Laminationsmikrovermischer bestehend aus Gehäuseunterteil (10), Schlitzplatte (20) und Blendplatte (30);
Fig. 4b
Draufsicht auf einen statischen Laminationsmikrovermischer;
Fig. 5
Explosionsdarstellung eines statischen Mikrovermischers;
Fig. 6
Explosionsdarstellung eines statischen Mikrovermischers mit Betrachtungswinkel von unten;
Fig. 7a
schematische Darstellung des Gehäuseunterteils (10);
Fig. 7b
Querschnitt durch Gehäuseunterteil (10) entlang der Ebene B-B;
Fig. 7c
Querschnitt durch Gehäuseunterteil (10) entlang der Ebene C-C;
Fig. 8a
schematische Darstellung eines statischen Mikrovermischers mit zwei unterschiedlichen Schlitzplatten und versetzt zueinander angeordneten Schlitzöffnungen (22, 23);
Fig. 8b
schematische Darstellung eines zusammengesetzten statischen Laminationsmikrovermischers mit zwei unterschiedlichen Schlitzplatten;
Fig. 9a
Explosionsdarstellungen von Laminationsmikrovermischern mit parallel versetzter Anordnung der Kanäle zur Auftrennung der Fluide im Gehäuse;
Fig. 9b
Explosionsdarstellungen von Laminationsmikrovermischern mit radial konzentrischer Anordnung der Kanäle zur Auftrennung der Fluide im Gehäuse;
Fig. 10
Laminationsmikrovermischer (60) (vgl. Fig. 9a) als Bestandteil einer integrierten Prozessanordnung zusammen mit einer Wärmetauscheinheit (70).
  • Fig. 1 zeigt die schematische Darstellung eines statischen Laminationsmikrovermischers bestehend aus Unterteil 10, einer Schlitzplatte 20 und einer Blendplatte 30. Das Unterteil 10 enthält für das Fluid A den Zuführkanal 11a und für das Fluid B den Zuführkanal 11b. Die Schlitzplatte 20 weist für die Fluide A und B Schlitzöffnungen 22a und 22b auf, die aus dem Zuführkanal 11a und 11 b gespeist werden. Oberhalb der Schlitzplatte 20 befindet sich die Blendplatte 30 mit einem Blendschlitz 31. Die Blendplatte 30 deckt hierbei den äußeren Bereich der Schlitzöffnungen 22a und 22b ab, während der mittlere Bereich der Schlitzöffnungen 22a und 22b mit dem Blendschlitz 31 überlappt und dadurch frei bleibt.
  • Fig. 2a zeigt die Explosionsdarstellung eines statischen Mikrovermischers bestehend aus Unterteil 10, Zuführkanälen 11a und 11 b, Schlitzplatte 20 und Blendplatte 30. Die Zuführkanäle 11a und 11b enthalten jeweils die Fluide A und B; über diesen Zuführkanälen befindet sich die Schlitzplatte 20 mit den Schlitzöffnungen 22 a und 22b. Oberhalb dieser befindet sich die Blendplatte 30, deren Blendschlitze in einem Winkel von 90° zu den Schlitzöffnungen 22a und 22b angeordnet sind.
  • Fig. 2b zeigt eine schematische Darstellung eines statischen Mikrovermischer, wie in Fig. 2a dargestellt, bestehend aus Unterteil 10, Schlitzplatte 20 und Blendplatte 30.
  • Fig. 3a zeigt als Doppelreihen angeordnete Schlitzöffnungen 22a und 22b in Form von Schlitzbereichen 21. Diese Schlitzbereiche 21 werden durch die Zuführkanäle 11a und 11 b mit Fluiden gespeist. Die eine Hälfte der Schlitzöffnungen 22a überlappt mit den Zuführkanälen 11a, die andere mit den Zuführkanälen 11b. In mittleren Bereich der Doppelreihen überlappen die Schlitzöffnungen 22 mit dem darüber angebrachten Blendschlitz 31. Die Schlitzöffnungen 22 können, wie hier dargestellt, auch schräg angeordnet sein.
  • Fig. 3b, Fig. 3c, Fig. 3e und Fig. 3f zeigen Schlitzöffnungen 22 mit unterschiedlicher geometrischer Ausgestaltung und Orientierung. Unterhalb der Schlitzöffnungen befinden sich die Zuführkanäle 11. Oberhalb der Schlitzöffnungen befinden sich die Blendschlitze 31. Die Querschnitte der Zuführkanäle 11 und der Blendschlitze 31 können entlang ihres Verlaufs variieren (Fig. 3f). Die Schlitzöffnungen 22 können trichterförmig in erweitert sein. Die Breite und Form der Schlitzöffnungen 22 kann zwischen den Fluiden (Fig. 3e) und innerhalb der Fluide (Fig. 3f) variieren.
  • Fig. 4a zeigt die Draufsicht auf ein Gehäuseunterteil 10. Das Gehäuseunterteil 10 ist mit zahlreichen schlitzförmigen Zuführkanälen 11 a und 11 b versehen, die abwechselnd rechts oder links verlagert dargestellt sind. In der darüber angeordneten Schlitzplatte 20 befinden sich der als schwarze Balken dargestellte Schlitzbereich 21; der Schlitzbereich 21 ist hierbei jeweils zwischen zwei Zuführkanälen 11a und 11 b positioniert, sodass dieser von zwei Zuführkanälen überlappt wird. Die Blendschlitze 31 der darüber liegenden Blendplatte 30 befinden sich mittig über den Schlitzbereichen 21 der Schlitzplatte 20.
  • Fig. 4b zeigt eine schematische Anordnung aus Zuführkanälen 11a und 11 b, Schlitzbereichen 21 und Blendschlitzen 31.
  • Fig. 5 zeigt die Explosionsansicht eines statischen Laminationsmikrovermischers; der Mikrovermischer besteht aus Gehäuseunterteil 10 und Gehäuseoberteil 40. Zwischen dem Gehäuseunterteil 10 und Gehäuseoberteil 40 befinden sich die Schlitzplatten 20 und die Blendplatten 30. In dem Gehäuseunterteil 10 befindet sich eine Nut 13, in die ein Dichtungsring 50 eingelegt werden kann, um so den Mikrovermischer gegen die Umgebung abzudichten. Das Gehäuseunterteil 10 und das Gehäuseoberteil 40 sind jeweils mit Öffnungen für Befestigungselemente 44 versehen, durch die beide gegeneinander fixiert werden können. Das Gehäuseunterteil 10 enthält an der Außenfläche zwei Fluideinlasskanäle 12a und 12b für die zu mischenden Fluide A und B. Auf der Oberseite des Gehäuseunterteils 10 sind zahlreiche schlitzförmige Zuführkanäle 11a und 11 b eingearbeitet, die abwechselnd zu der einen oder der anderen Seite verlängert ausgestaltet sind und so vom Fluid A oder vom Fluid B gespeist werden können. Die Schlitzplatte 20 enthält zahlreiche Schlitzbereiche 21; oberhalb der Schlitzplatte 20 ist die Blendplatte 30 angebracht, die eine Vielzahl von Blendschlitzen 31 aufweist. Das Gehäuseoberteil 40 enthält einen Fluidauslass 42 zur Ableitung des gewonnenen Gemisches.
  • Fig. 6 zeigt in Analogie zu Fig. 5 eine Explosionsdarstellung eines statischen Laminationsmikrovermischers mit Betrachtungswinkel von der Unterseite. Das Gehäuseoberteil 40 enthält eine große Mischkammer 45, in die alle Blendschlitze 31 der Blendplatte 30 münden. Zur Abstützung der Blendplatte 30 sind mehrere Stützstrukturen 41 im Gehäuseoberteil 40 angebracht.
  • Fig. 7a zeigt die schematische Darstellung des Gehäuseunterteils 10. Das Gehäuseunterteil 10 ist mit Zuführkanälen 11a und 11b für die zu mischenden Fluide A und B versehen. An den Außenseiten des Gehäuseunterteils sind Fluideinlässe 12a und 12b vorhanden. Die Aussparungen 44 an den vier Ecken des Gehäuseunterteils 10 gestatten dessen Fixierung.
  • Fig. 7b zeigt den Querschnitt durch das Gehäuseunterteil 10 entlang der Linie B-B in Fig. 7a. Der Fluideinlass 12a setzt sich in dem Fluideinlasskanal 14 für das Fluid A fort. Auf der Oberseite des Fluideinlasskanals 14 befinden sich die Zufuhrkanäle 11 a für das Fluid. Auf der Oberseite des Gehäuseunterteils 10 befindet sich eine Nut 13 für das Einlegen eines Dichtungsrings.
  • Fig. 7c zeigt den Querschnitt durch das Gehäuseunterteil 10 entlang der Linie C-C in Fig. 7a. Die Zuführkanäle 11a für das Fluid A und 11 b für das Fluid B verlaufen abwechselnd parallel, ohne dass es eine Querverbindung zwischen diesen beiden Zuführkanälen gibt. Auf der Oberseite des Gehäuseunterteils 10 befindet sich wieder eine Nut 13 für das Einlegen eines Dichtungsrings.
  • Fig. 8a zeigt die schematische Darstellung eines statischen Laminationsmikrovermischers mit den zwei unterschiedlichen Schlitzöffnungen 22a/22b und 23a/23b. Die Schlitzöffnungen 22a und 22b der ersten Schlitzplatte bilden die Zuführkanäle für die zweite Schlitzplatte mit kleinen Schlitzöffnungen 23a und 23b. Die Schlitzöffnungen 22a/22b und 23a/23b sind jeweils um 90° zueinander verdreht angeordnet.
  • Fig. 8b zeigt die Draufsicht eines solchen statischen Mikrovermischers nach Fig. 8a bestehend aus zwei unterschiedlichen Schlitzplatten, deren Schlitzöffnungen zueinander um 90° gedreht sind.
  • Fig. 9a und Fig. 9b zeigen zwei Ausführungsbeispiele für Laminationsmikrovermischer in der Explosionsdarstellung. Danach können die Schlitzöffnungen in der Schlitzplatte, die Schlitzöffnungen in der Blendplatte sowie die Kanäle zur Verteilung der Fluide kreisförmig oder parallel versetzt angeordnet sein.
  • Fig. 10 zeigt ein Ausführungsbeispiel zum Einsatz eines Laminationsmikrovermischers als Bestandteil einer integrierten Anordnung zur Durchführung physikalisch-chemischer Umwandlungen. Im aufgeführten Fall wurden Laminationsmikrovermischer (60) und Rohrbündelwärmeübertrager (70) in ein Bauteil integriert.
Show it:
Fig. 1
schematic representation of the static micromixer consisting of a slot and a diaphragm plate;
Fig. 2a
Expolsion representation of a static Lamination Micro mixing consisting of the lower housing part (10), feed channels (11), slotted plate (20) and diaphragm plate (30);
Fig. 2b
Representation of a static Lamination Micro Mixer consisting of lower housing part (10), feed channels (11), slot plate (20) and diaphragm plate (30);
Fig. 3a
Top view of the feed channels (11), slot openings (22a, 22b) and blind slots (31) of a static lamination micro-mixer;
Fig. 3b
Top view of the slot openings of different geometry and orientation (22) in a slot plate (20) of a static lamination micro-mixer;
Fig. 3c
Top view of the slot openings of different geometry and orientation (22) in a slot plate (20) of a static lamination micro-mixer;
3e:
Top view of the slot openings of different geometry and orientation (22) in a slot plate (20), wherein the slot openings have different widths and shapes;
Fig. 3f:
Top view of the slot openings of different geometry and orientation (22) in a slot plate (20), wherein the slot openings, the aperture slots (31) and / or the feed channels (11) have different and variable widths and shapes;
Fig. 4a
Top view of a static lamination micro mixing consisting of housing lower part (10), slot plate (20) and diaphragm plate (30);
Fig. 4b
Top view of a static lamination micro-mixer;
Fig. 5
Exploded view of a static micromixer;
Fig. 6
Exploded view of a static micromixer with viewing angle from below;
Fig. 7a
schematic representation of the housing lower part (10);
Fig. 7b
Cross section through the lower housing part (10) along the plane BB;
Fig. 7c
Cross section through the lower housing part (10) along the plane CC;
Fig. 8a
schematic representation of a static micromixer with two different slotted plates and mutually offset slot openings (22, 23);
Fig. 8b
schematic representation of a composite static laminating micro-mixer with two different slotted plates;
Fig. 9a
Exploded views of lamination micromixers with parallel offset arrangement of the channels for separating the fluids in the housing;
Fig. 9b
Exploded views of lamination micromixers with radially concentric arrangement of the channels for separating the fluids in the housing;
Fig. 10
Lamination Micro Mixer (60) (cf. Fig. 9a ) as part of an integrated process assembly together with a heat exchange unit (70).
  • Fig. 1 shows the schematic representation of a static lamination micromixer consisting of the lower part 10, a slit plate 20 and a diaphragm plate 30. The lower part 10 contains for the fluid A the supply channel 11a and for the fluid B, the supply channel 11b. The slit plate 20 has slits 22a and 22b for the fluids A and B, which are fed from the supply channels 11a and 11b. Above the slotted plate 20 is the diaphragm plate 30 with a blind slit 31. The diaphragm plate 30 covers the outer region of the slit openings 22a and 22b, while the central region of the slit openings 22a and 22b overlaps with the diaphragm slit 31 and thus remains free.
  • Fig. 2a shows the exploded view of a static micromixer consisting of the lower part 10, feed channels 11a and 11b, slit plate 20 and diaphragm plate 30. The feed channels 11a and 11b contain the fluids A and B, respectively; The slotted plate 20 with the slot openings 22 a and 22 b is located above these feed channels. Above this is the diaphragm plate 30, whose diaphragm slots are arranged at an angle of 90 ° to the slot openings 22a and 22b.
  • Fig. 2b shows a schematic representation of a static micromixer, as in Fig. 2a represented, consisting of lower part 10, slit plate 20 and diaphragm plate 30th
  • Fig. 3a shows slit openings 22a and 22b arranged as double rows in the form of slit regions 21. These slit regions 21 are fed by the supply channels 11a and 11b with fluids. One half of the slit openings 22a overlap with the supply channels 11a, the other with the supply channels 11b. In the middle region of the double rows, the slot openings 22 overlap with the overlay slot 31 mounted above. The slot openings 22 can, as shown here, also be arranged obliquely.
  • Fig. 3b, Fig. 3c, Fig. 3e and Fig. 3f show slot openings 22 with different geometric configuration and orientation. Below the slot openings are the feed channels 11. Above the slot openings are the blind slots 31. The cross sections of the feed channels 11 and the blind slots 31 can vary along their course ( Fig. 3f ). The slot openings 22 may be funnel-shaped in expanded. The width and shape of the slot openings 22 may be between the fluids ( Fig. 3e ) and within the fluids ( Fig. 3f ) vary.
  • Fig. 4a shows the top view of a lower housing part 10. The lower housing part 10 is provided with numerous slot-shaped feed channels 11 a and 11 b, which are shown alternately shifted right or left. In the slot plate 20 disposed above there are the slot area 21 shown as a black bar; the slot area 21 is in each case positioned between two feed channels 11a and 11b, so that it is overlapped by two feed channels. The blind slots 31 of the overlying diaphragm plate 30 are located centrally above the slot areas 21 of the slot plate 20.
  • Fig. 4b shows a schematic arrangement of feed channels 11a and 11b, slot portions 21 and blind slots 31st
  • Fig. 5 shows the exploded view of a static lamination micro-mixer; the micromixer consists of lower housing part 10 and upper housing part 40. Between the lower housing part 10 and the upper housing part 40 are the slit plates 20 and the diaphragm plates 30. In the lower housing part 10 is a groove 13 into which a sealing ring 50 can be inserted, so as to the micromixer seal against the environment. The lower housing part 10 and the upper housing part 40 are each provided with openings for fastening elements 44, by which both can be fixed against each other. The lower housing part 10 contains on the outer surface two fluid inlet channels 12a and 12b for the fluids A and B to be mixed. On the upper side of the housing lower part 10 numerous slot-shaped supply channels 11a and 11b are incorporated, which are alternately designed extended to one side or the other and can be fed from the fluid A or the fluid B. The slit plate 20 includes a plurality of slit portions 21; above the slotted plate 20, the diaphragm plate 30 is mounted, which has a plurality of blind slots 31. The upper housing part 40 includes a fluid outlet 42 for discharging the recovered mixture.
  • Fig. 6 shows in analogy to Fig. 5 an exploded view of a static lamination Mischmischers with viewing angle from the bottom. The upper housing part 40 includes a large mixing chamber 45 into which all the blind slots 31 of the diaphragm plate 30 open. To support the diaphragm plate 30 a plurality of support structures 41 are mounted in the housing upper part 40.
  • Fig. 7a shows the schematic representation of the lower housing part 10. The lower housing part 10 is provided with supply channels 11a and 11b for the fluids A and B to be mixed. On the outer sides of the housing lower part fluid inlets 12a and 12b are present. The recesses 44 at the four corners of the housing base 10 allow its fixation.
  • Fig. 7b shows the cross section through the lower housing part 10 along the line BB in Fig. 7a , The fluid inlet 12a continues in the fluid inlet channel 14 for the fluid A. On the top of the fluid inlet channel 14 are the Feed channels 11 a for the fluid. On the upper side of the housing lower part 10 there is a groove 13 for inserting a sealing ring.
  • Fig. 7c shows the cross section through the housing lower part 10 along the line CC in Fig. 7a , The supply channels 11a for the fluid A and 11b for the fluid B run alternately parallel, without there being a cross-connection between these two supply channels. On the top of the lower housing part 10 is again a groove 13 for the insertion of a sealing ring.
  • Fig. 8a shows the schematic representation of a static lamination micro-mixer with the two different slot openings 22a / 22b and 23a / 23b. The slot openings 22a and 22b of the first slot plate form the feed slots for the second slot plate with small slot openings 23a and 23b. The slot openings 22a / 22b and 23a / 23b are each rotated by 90 ° to each other.
  • Fig. 8b shows the top view of such a static micromixer after Fig. 8a consisting of two different slotted plates whose slot openings are rotated by 90 ° to each other.
  • Fig. 9a and Fig. 9b show two embodiments of Lamination Micro Mixer in the exploded view. Thereafter, the slot openings in the slot plate, the slot openings in the diaphragm plate and the channels for distributing the fluids can be arranged offset in a circle or in parallel.
  • Fig. 10 shows an embodiment of the use of a lamination Mikromischers as part of an integrated arrangement for performing physico-chemical transformations. In this case, lamination micro mixers (60) and tube bundle heat exchangers (70) were integrated into one component.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

10, 10a10, 10a GehäuseunterteilHousing bottom 11a11a Zuführkanal für Fluid AFeed channel for fluid A 11b11b Zuführkanal für Fluid BFeed channel for fluid B 12a12a Fluideinlass für Fluid AFluid inlet for fluid A 12b12b Fluideinlass für Fluid BFluid inlet for fluid B 1313 Nut für DichtungsringGroove for sealing ring 1414 FluideinlasskanalFluid inlet channel 2020 Schlitzplatteslot plate 2121 Schlitzbereichslot area 22a22a Schlitzöffnung für Fluid ASlot opening for fluid A 22b22b Schlitzöffnung für Fluid BSlot opening for fluid B 23a23a Schlitzöffnung für Fluid ASlot opening for fluid A 23b23b Schlitzöffnung für Fluid BSlot opening for fluid B 3030 Blendplattediaphragm plate 3131 Blendschlitzblend slot 40, 40a40, 40a GehäuseoberteilHousing top 4141 Stützstruktursupport structure 4242 Fluidauslassfluid outlet 4444 Öffnung für BefestigungselementOpening for fastening element 4545 Mischkammermixing chamber 5050 Dichtungsringsealing ring 6060 Mikrovermischermicromixer 7070 RohrbündelwärmeübertragerShell and tube heat exchanger

Claims (13)

  1. Static lamination micro-mixer for mixing, dispersing, emulsifying or suspending at least two fluid phases, comprising a lower housing part (10) with separate feed channels (11a/b), which are open towards the upper side of the lower housing part, for at least two fluids,
    a slotted plate (20) which rests on the housing lower part and which has arranged therein in paired fashion slot openings (22a/b) which are formed as continuous openings with a closed edge and with a width of less than 500 micrometers,
    an aperture plate (30) which rests on the slotted plate and which has at least one slot-shaped aperture opening (31) which is formed as a continuous opening with a closed edge and with a width of less than 500 micrometers, and
    a mixing chamber (45) situated above the aperture plate,
    wherein, within a pair of slot openings in the slotted plate (20), in each case one slot opening of the pair overlaps, with one end thereof, one of the feed channels (11) in the lower housing part (10), whereas the other slot opening of the pair overlaps, with one end thereof, another feed channel (11) in the lower housing part (10), and both slot openings of the pair form in each case exactly one area of overlap with the same aperture opening (31) in the aperture plate.
  2. Micro-mixer according to Claim 1, characterized in that the cross section of the slot openings in the plate is configured in the shape of a funnel or lobe.
  3. Micro-mixer according to either of Claims 1 and 2, characterized in that the aperture slots in the aperture plate are offset parallel to one another and/or are arranged in a periodic pattern in relation to one another.
  4. Micro-mixer according to Claims 1 to 3, characterized in that the slot openings in the slotted plate and the aperture slots in the aperture plate are arranged at an angle of 90° to one another.
  5. Micro-mixer according to Claims 1 to 4, characterized in that the slot openings in the slotted plate and the aperture slots in the aperture plate have a width of less than 100 µm.
  6. Micro-mixer according to Claims 1 to 5, characterized in that the slotted and aperture plates consist, partly or completely, of metal, glass, ceramic and plastic or of a combination of these materials.
  7. Micro-mixer according to Claims 1 to 6, characterized in that the slotted and aperture plates have been produced by punching, embossing, milling, erosion, etching, plasma etching, laser cutting, laser ablation or by the LIGA technique but preferably by laser cutting or the LIGA technique.
  8. Micro-mixer according to Claims 1 to 7, characterized in that the slotted and aperture plates comprise a stack of micro-structured thin plates.
  9. Micro-mixer according to Claim 8, characterized in that the thin micro-structured plates are connected materially by means of soldering, welding, diffusion welding or adhesive bonding or with a force fit by means of screwing, pressing or riveting.
  10. Micro-mixer according to Claims 1 to 9, characterized in that the micro-mixer is accommodated in a housing provided for the purpose.
  11. Micro-mixer according to Claims 1 to 10, characterized in that the housing contains channels which permit spatial distribution of the fluid phases.
  12. Micro-mixer according to Claims 1 to 11, characterized in that the channels are arranged offset parallel from one another, radially, concentrically or behind one another in order to distribute the fluids in the housing.
  13. Method for mixing, dispersing, emulsifying or suspending at least two fluid phases, characterized in that at least one static lamination micro-mixer is used according to one of Claims 1 to 12.
EP03780105.7A 2002-12-07 2003-12-03 Static lamination micro mixer Expired - Lifetime EP1572335B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20218972U 2002-12-07
DE20218972U DE20218972U1 (en) 2002-12-07 2002-12-07 Static lamination micro mixer
PCT/EP2003/013603 WO2004052518A2 (en) 2002-12-07 2003-12-03 Static lamination micro mixer

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EP1572335A2 EP1572335A2 (en) 2005-09-14
EP1572335B1 true EP1572335B1 (en) 2013-05-29

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US (1) US7909502B2 (en)
EP (1) EP1572335B1 (en)
JP (2) JP4847700B2 (en)
KR (1) KR100806401B1 (en)
CN (1) CN100360218C (en)
AU (1) AU2003288216A1 (en)
DE (1) DE20218972U1 (en)
WO (1) WO2004052518A2 (en)

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DE20218972U1 (en) 2003-02-13
KR20050085326A (en) 2005-08-29
AU2003288216A8 (en) 2004-06-30
WO2004052518A3 (en) 2005-06-09
EP1572335A2 (en) 2005-09-14
KR100806401B1 (en) 2008-02-21
US20060087917A1 (en) 2006-04-27
JP2006508795A (en) 2006-03-16
US7909502B2 (en) 2011-03-22
JP2011183386A (en) 2011-09-22
AU2003288216A1 (en) 2004-06-30
CN1780681A (en) 2006-05-31
WO2004052518A2 (en) 2004-06-24
JP4847700B2 (en) 2011-12-28
CN100360218C (en) 2008-01-09

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