EP1533021B1 - Static mixing device, discharging device and storage container provided with a static mixing device of this type, use of a static mixing device of this type as well as method of discharging - Google Patents

Static mixing device, discharging device and storage container provided with a static mixing device of this type, use of a static mixing device of this type as well as method of discharging Download PDF

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Publication number
EP1533021B1
EP1533021B1 EP03026474A EP03026474A EP1533021B1 EP 1533021 B1 EP1533021 B1 EP 1533021B1 EP 03026474 A EP03026474 A EP 03026474A EP 03026474 A EP03026474 A EP 03026474A EP 1533021 B1 EP1533021 B1 EP 1533021B1
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EP
European Patent Office
Prior art keywords
mixing
channels
mixing element
mixing device
main flow
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
EP03026474A
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German (de)
French (fr)
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EP1533021A1 (en
Inventor
Klaus Hempel
Roland Erich Munkelt
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EFTEC Europe Holding AG
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EFTEC Europe Holding AG
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Publication date
Priority to EP03026474A priority Critical patent/EP1533021B1/en
Application filed by EFTEC Europe Holding AG filed Critical EFTEC Europe Holding AG
Priority to ES03026474T priority patent/ES2295499T3/en
Priority to DK03026474T priority patent/DK1533021T3/en
Priority to DE50308859T priority patent/DE50308859D1/en
Priority to AT03026474T priority patent/ATE381381T1/en
Priority to CA002546177A priority patent/CA2546177A1/en
Priority to US10/578,196 priority patent/US20070081420A1/en
Priority to PCT/EP2004/012637 priority patent/WO2005049186A2/en
Publication of EP1533021A1 publication Critical patent/EP1533021A1/en
Priority to NO20062743A priority patent/NO20062743L/en
Application granted granted Critical
Publication of EP1533021B1 publication Critical patent/EP1533021B1/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
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • 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

  • Static mixing devices as well as discharge devices for particularly viscous fluids to be used with such static mixing devices have been known in great variety for a long time:
  • a static mixer which is constructed of layered plates.
  • fluid flows are passed through the individual plate levels, the plates each having interconnected channels. Passage openings on different planes of the plates are each offset from one another.
  • EP-A1-0 665 063 US 3,323,682 . US 2003/0179648 A1 and EP-B1-0 787 661 known.
  • EP-A1-1 013 706 describes the combination of pressure cans with a static mixer.
  • a disadvantage of the known static mixing devices is that at relatively low height only insufficient mixing is effected.
  • known static mixing devices that achieve an acceptable mixing, have such a large height, that the handling is impaired in particular together with a discharge device of the type mentioned.
  • a static mixing device comprises at least a first mixing element, which on a front side a plurality of particular parallel channels transversely, in particular orthogonal to the main flow direction, wherein the channels are not connected to each other, but have passage openings in the main flow direction.
  • a deflection or division of the flow is effected. This is preferably done by an orthogonal arrangement, but of course, non-orthogonal arrangements are possible.
  • at least a second mixing element, which is in contact with the first mixing element, is provided which has on a front side a plurality of, in particular, parallel channels transversely, in particular orthogonal to the main flow direction, the channels being connected to one another.
  • channels of a mixing element in contact with another mixing element are considered to be connected if an exchange of fluids between the respective channels is possible, in particular through their side walls.
  • the direction of the main flow direction is understood here and hereinafter to mean the direction along the longitudinal axis between the inlet and outlet of the medium.
  • curved mixing devices are possible; in such a case, the main flow direction follows the curvature of the mixing device.
  • the front side of a mixing element is understood here and below as the side which faces the inlet for the substances to be mixed.
  • a rear side of a mixing element is understood here and below as the side which faces the outlet for the substances to be mixed.
  • the first and second mixing elements are arranged alternately.
  • an alternating arrangement is particularly preferably understood to mean arrangements in which no first (or second) mixing element is arranged directly adjacent to a further, first (or second) mixing element.
  • the first and second mixing elements are designed as stackable plates.
  • Such plates are, for example, in the plastic injection molding process particularly simple and can be produced by known means.
  • the stackability can in this case be effected by a variety of means, for example by mutually particularly specifically compatible areas of adjacent plates, in particular elevations and depressions. It is particularly preferred that the plates outside are round, in particular formed with the same outer diameter.
  • the first and second mixing elements are stacked against each other at a certain angle relative to a comparable structural feature present on both mixing elements.
  • the respective next mixing element is in this case arranged rotated relative to the preceding mixing element by this particular angle.
  • the direction of rotation, by which the individual mixing elements are rotated does not change along the static mixing device.
  • a second mixing element follows a first mixing element in the main flow direction, the channels of this preceding first mixing element being arranged parallel to the rear-side channels of the second mixing element.
  • a first mixing element follows a second mixing element in the main flow direction, wherein the channels of this following, first mixing element are aligned rotated by an angle of 90 ° against the channels on the back of the second mixing element.
  • sequence of mixing elements include pairwise arrangements of the first and second mixing elements, wherein in each of the paired arrangements the channels of the first mixing element are aligned parallel to the backside channels of the second mixing element, but in the main flow direction the channels of a subsequent one , Paired arrangement are each arranged rotated in relation to a preceding arrangement by an angle of 90 °.
  • the mixing elements can have means for rotation-proof stacking, in particular at an angle of 90 ° or an even multiple of 90 °.
  • cams are arranged, which are compatible in a stack of mixing elements to depressions of adjacent mixing elements. This can be ensured in a simple manner a non-rotating stacking with the greatest possible flexibility remaining in the structure.
  • an input piece is provided in the main flow direction in front of a first mixing element and / or an end piece in the main flow direction after a final mixing element.
  • the mixing elements and optionally the input piece and / or the end piece are arranged interchangeably in a sleeve in particular.
  • the sleeve is in particular reversibly closed with a connection piece for connection to a discharge device and / or lockable.
  • This may in particular be, for example, screw and / or plug connections, but also clamping connections; preferably screw connections are used.
  • a mixing device of the type mentioned advantageously finds use for mixing at least two substances stored in a storage container having at least two compartments, wherein the mixing device can be arranged or arranged detachably or firmly on the storage container or a discharge device.
  • Such storage containers are intended in particular for adhesives and sealants usually for single use, so not emptied after emptying.
  • static static devices are often also not reusable.
  • such storage containers can therefore already be made and sold in particular firmly connected to such a static mixing device, which further simplifies the handling for the end user by reducing the need for manipulation.
  • Another aspect of the invention thus relates to a storage container in combination with the mixing device, in particular a multi-chamber tubular bag with at least two compartments, wherein the mixing device of the type described above is detachably or firmly connected or connected to the storage container.
  • a connection can in particular be caused by the manufacturer and irreversibly.
  • plug, screw and / or clamping connections it is also possible to provide in particular plug, screw and / or clamping connections.
  • An additional aspect of the invention also relates to a discharge device for discharging at least two substances to be mixed from an either combined storage container having at least two compartments, or a plurality of separate storage containers in combination with the mixing device.
  • These may in particular be parallel or coaxial double cartridge systems.
  • Such discharge devices are available in various designs, in particular pneumatically or manually, available on the market, for example. Of Mixpac (System 400) or PC Cox Ltd. (RBA 200B). In particular, multi-chamber tubular bag systems can be used.
  • the outlet of the storage container (s) can be connected or connected to the static mixing device.
  • Such discharge devices are particularly well known for one-component systems, for example MK Maskinsfabrik (TS 485 X).
  • a substantially direct connection of the storage container to the static mixing device can be provided.
  • the prior art in particular the WO 01/44074 Problems of insufficient mixing with static mixing devices are known, which can usually be at least partially overcome by separately guiding the components to be mixed before the actual mixing system. However, this results in an undesirable extension of the operative discharge device, whereby the handling is deteriorated.
  • a static mixing device according to the present invention, such a separate task of the components on the mixing device is not necessary.
  • a substantially direct connection between the outlet of a storage container and the static mixing device can be produced without this having a negative effect on the mixing result.
  • “Substantially direct” in this context means that technically no distance between storage container and static mixing device to achieve the mixing is necessary; However, this does not rule out that possibly due to the modular structure and / or possibly necessary sealing elements, etc. may result in a slight spacing.
  • the inventive method for discharging at least two substances to be mixed in particular from a storage container with at least two compartments is thus characterized by the fact that the mixture of substances substantially exclusively by a static mixing device, as described above, takes place.
  • “Substantially” means here that, if necessary, further mixing can take place outside the static mixing device, but this is not of superficial importance for the respective application.
  • additional application nozzles or the like. usable, which could possibly cause a further mixture in addition to the focus of the mixture to be applied.
  • FIG. 1 shows an exploded view of a static mixing device 1 constructed from a plurality of first mixing elements A and second mixing elements B.
  • the construction of the first and second mixing elements A, B will be explained in detail below in FIGS. 2 and 3.
  • the mixing elements A and B are designed as stackable plates.
  • the static mixing device 1 also has a connecting piece 11 (see also FIG. 8) as well as an input piece 8 and an end piece 9 (see also FIGS. 5 and 6).
  • the connecting piece 11 serves to connect the static mixing device 1 to a not shown in detail, in particular commercial discharge device. For example, plug-in, screwed and / or clamping connections can be provided for connection to such a discharge device.
  • the static mixing device 1 is traversed in the main flow direction H by a plurality, in particular two, in particular two viscous substances to be mixed, in particular free-flowing.
  • a working pressure of the order of magnitude of up to 6.0 to 6.5 bar in the main flow direction H must be used.
  • the mixing elements A and B are arranged alternately in the main flow direction H as follows: A, B, A, B, etc.
  • the individual mixing elements A, B are arranged here with an angle of rotation ⁇ increasing in the direction of the main flow H, specifically in each case each next mixing element A or B by an additional 90 ° relative to the position of the preceding mixing element A or B.
  • FIG. 2 shows a first mixing element A from a front side V in detail.
  • the mixing element A has a plurality of parallel channels 2, which are not connected to each other.
  • the individual channels each have passage openings 3 to the rear of the mixing element A.
  • the passage openings 3 of adjacent channels 2 are located on opposite sides of the mixing element A. In this case, a middle region of all channels 2 is free of any passage openings.
  • the mixing element 2 also has means for the rotationally secured stacking of mixing elements A, B. These are preferably cams or recesses compatible with these cams. Cams and recesses are in this case arranged on opposite sides of the mixing element A, that a stacking at an angle of rotation ⁇ of 90 ° or a multiple of 90 ° is made possible.
  • FIG. 3 shows the front side V of a mixing element B.
  • the mixing element B has a plurality of channels 2 which are interconnected by means of a connecting channel 5. Beyond a first side of this connection channel 5 - in the figure to the right of the connecting channel 5 - the channels 2 have no passage openings. However, passages 6 are present on this side, which are not connected to the channels 2. Beyond a second side of this connection channel - in the figure to the left of the connecting channel 5 - the channels each have at least one opening 4 in a side wall, whereby the channels 2 are connected to passage openings 3.
  • FIG. 4 shows the rear side R of a mixing element B according to FIG. 3.
  • this rear side R is largely analogous to the front side of a mixing element A:
  • the rear side R of the mixing element B has a plurality of channels 2 which are not connected to each other. In a central region of all channels 2 - in the figure, the area between the dashed lines - no passage openings 3 are present. In a region located in the figure to the right of this central region, the channels 2 have passage openings 3; these are referred to as passages 6 in FIG. Thus, these are not in communication with the front channels 2 (see FIG.
  • the channels 2 likewise have passage openings 3, which are connected to the front channels 2 via the openings 4.
  • the passage openings 3 of adjacent channels 2 on the rear side R of the mixing element B are arranged on opposite sides of the mixing element B.
  • Figure 5 shows an input piece 8, which is connected in the main flow direction H a first mixing element.
  • This input piece particularly advantageously has a central web 16, which is arranged in the middle region of the channels 2 of the first mixing element A in the main flow direction H.
  • FIG. 6 shows an end piece 6, which is arranged after a mixing element B that is the last in the direction of the main flow H.
  • a mixing element B that is the last in the direction of the main flow H.
  • the tail 6 also has baffles 17, which are preferably arranged concentrically around the outlet opening 17 around and also serve the mixing.
  • FIG. 7 shows a sleeve 10 for receiving a plurality of mixing elements A and B, the input piece 8 and the end piece 9. The sleeve is then closed with a connector 11 shown in Figure 8. This can be both a detachable connection of sleeve 10 and connector 11 as well as an irreversible connection.
  • FIG. 9 shows a ready-to-use mixing device, which can be connected via the connecting piece 11, in particular to commercially available discharge devices.
  • the static mixing device constructed in the drawing, only schematically indicated, constructed from a plurality of mixing elements A, B.
  • Preferred materials for the mixing elements A, B, inlet and tail, and the sleeve 10 are in particular polypropylene (PP), polyethylene (PE) and polyamides, which may optionally be glass fiber reinforced.
  • PP polypropylene
  • PE polyethylene
  • polyamides which may optionally be glass fiber reinforced.
  • other materials, especially plastics or metals may be selected for the particular application; Such materials and their specific advantages are known to those skilled in the art.
  • Comparative tests of a static mixing device 1 according to the invention with 11 mixing elements A and B according to the arrangement shown in FIG. 1 were carried out using a standard mixer Mixpac from Statomix (internal diameter 10 mm, length 217 mm).
  • a standard mixer Mixpac from Statomix (internal diameter 10 mm, length 217 mm).
  • the components of the two-component adhesive Dinitrol 512 2K HM were mixed via the static mixing devices and the achievable adhesive properties based on the tensile shear strengths measured at different times compared.
  • glass was glued to painted sheet metal, with both substrates having been pretreated with glass primer or paint primer. Such pretreatments correspond to the usual practice of the skilled person.
  • the components were then pressed under a pressure of 6 bar through the static mixing devices.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Coating Apparatus (AREA)

Abstract

A static mixer (1), especially for the discharge of viscous fluids, has an initial mixing stage (A) with a number of parallel channels at the leading side on the main flow line (H). The channels are not interlinked, but have flow openings in the main flow direction. At least one additional mixing stage (B) is in contact with the first, and with a similar channel structure. The static mixer (1), especially for the discharge of viscous fluids, has an initial mixing stage (A) with a number of parallel channels at the leading side on the main flow line (H). The channels are not interlinked, but have flow openings in the main flow direction. At least one additional mixing stage (B) is in contact with the first, and with a similar channel structure. The mixing stages are formed by plates stacked together. Openings in the channel side walls allow a medium flow into the main flow direction. A number of parallel and separate channels are at the rear side. The mixer has a connector (11), an entry piece (8) and an end piece (9).

Description

Statische Mischvorrichtungen sowie mit solchen statischen Mischvorrichtungen zu verwendende Austragvorrichtungen für insbesondere viskose Fluide sind in grosser Vielzahl seit langer Zeit bekannt:Static mixing devices as well as discharge devices for particularly viscous fluids to be used with such static mixing devices have been known in great variety for a long time:

Aus dem Dokument EP-B1-0 495 169 ist eine statische Mischvorrichtung bekannt, welche aus geschichteten Platten aufgebaut ist. Hierbei werden Fluidflüsse durch die einzelnen Plattenebenen geleitet, wobei die Platten jeweils miteinander verbundene Kanäle aufweisen. Durchtrittsöffnungen auf unterschiedlichen Ebenen der Platten sind jeweils versetzt zueinander angeordnet.From the document EP-B1-0 495 169 For example, a static mixer is known which is constructed of layered plates. Here, fluid flows are passed through the individual plate levels, the plates each having interconnected channels. Passage openings on different planes of the plates are each offset from one another.

Ein aus perforierten Platten aufgebauter, statischer Mischer ist auch aus US 3,856,270 bekannt. Ein weiterer statischer Mischer mit serpentinenartiger Flüssigkeitsführung ist in US 4,222,671 gezeigt. In diesen beiden Systemen wird der Fluidfluss entlang des Mischers wiederholt zerteilt und wieder zusammengeführt. Statische Mischvorrichtungen der genannten Art werden häufig zusammen mit Austragvorrichtungen insbesondere für Zwei-Komponenten-Reaktivgemische wie z.B. Klebstoffe verwendet. Derartige Austragvorrichtungen sind für Ein- und Mehr-Komponentensystem bekannt, wobei für Mehr-Komponentensysteme sowohl getrennte Kartuschen als auch kombinierte Vorratsbehältnisse wie z.B. Mehrkammer-Schlauchbeutel verwendet werden.A built-up of perforated plates, static mixer is also off US 3,856,270 known. Another static mixer with serpentine liquid flow is in US 4,222,671 shown. In these two systems, the fluid flow along the mixer is repeatedly split and rejoined. Static mixing devices of the type mentioned are often used together with discharge devices in particular for two-component reactive mixtures such as adhesives. Such dispensers are known for single and multi-component systems, wherein for multi-component systems both separate cartridges and combined storage containers such as multi-chamber tubular bags are used.

Aus WO 01/44074 ist beispielsweise eine solche Austragvorrichtung bekannt. Hier ist jedoch ein Adapter zum getrennten Führen der Komponenten zwischen Vorratsbehältnis und statischem Mischer vorgesehen, wodurch Gewicht, Bauhöhe und Handhabbarkeit der Austragvorrichtung insgesamt beeinträchtigt sind.Out WO 01/44074 For example, such a discharge device is known. However, here is an adapter for separately guiding the components between the storage container and static mixer provided, whereby weight, height and manageability of the discharge are impaired overall.

Weitere derartige oder ähnliche Austragvorrichtungen sind u.a. aus EP-A1-0 665 063 , US 3,323,682 , US 2003/0179648 A1 und EP-B1-0 787 661 bekannt.Other such or similar discharge devices include EP-A1-0 665 063 . US 3,323,682 . US 2003/0179648 A1 and EP-B1-0 787 661 known.

EP-A1-1 013 706 beschreibt die Kombination von Druckdosen mit einem statischen Mischer. EP-A1-1 013 706 describes the combination of pressure cans with a static mixer.

Nachteilig bei den bekannten statischen Mischvorrichtungen ist, dass bei relativ geringer Bauhöhe nur eine unzureichende Durchmischung bewirkt wird. Bekannte statische Mischvorrichtungen hingegen, die eine akzeptable Durchmischung erreichen, weisen eine derart grosse Bauhöhe auf, dass die Handhabbarkeit insbesondere zusammen mit einer Austragvorrichtung der eingangs genannten Art beeinträchtigt ist.A disadvantage of the known static mixing devices is that at relatively low height only insufficient mixing is effected. However, known static mixing devices that achieve an acceptable mixing, have such a large height, that the handling is impaired in particular together with a discharge device of the type mentioned.

Es ist daher eine Aufgabe der Erfindung, die Nachteile des bekannten zu vermeiden, insbesondere also eine statische Mischvorrichtung zu schaffen, welche einfach und möglichst mit bekannten Mitteln herstellbar ist, welche in der Bauhöhe weitestgehend reduziert ist und möglichst trotzdem verbesserte Mischungseigenschaften aufweist. Es ist eine weitere Aufgabe der Erfindung, eine Mischvorrichtung bereitzustellen, welche zur Verwendung mit konventionellen Austragvorrichtungen, wie sie bspw. für Ein- und Mehr-Komponentensysteme bekannt sind, geeignet ist, sowie die Handhabbarkeit eines solchen Systems zu verbessern.It is therefore an object of the invention to avoid the disadvantages of the known, in particular to provide a static mixing device which is simple and can be produced as far as possible with known means, which is largely reduced in height and still has improved mixing properties as possible. It is another object of the invention to provide a mixing device which is suitable for use with conventional discharge devices, such as those known for, for example, single and multi-component systems, as well as to improve the manageability of such a system.

Die genannten Aufgaben werden erfindungsgemäss gelöst durch eine statische Mischvorrichtung, ein Vorratsbehältnis und eine Austragvorrichtung in Kombination mit der Mischvorrichtung, sowie ein Verfahren und eine Verwendung gemäss den unabhängigen Patentansprüchen.The above objects are achieved according to the invention by a static mixing device, a storage container and a discharge device in combination with the mixing device, as well as a method and a use according to the independent patent claims.

Eine statische Mischvorrichtung gemäss der Erfindung beinhaltet mindestens ein erstes Mischelement, welches auf einer Vorderseite eine Mehrzahl insbesondere paralleler Kanäle quer, insbesondere orthogonal zur Hauptflussrichtung aufweist, wobei die Kanäle miteinander nicht verbunden sind, jedoch Durchtrittsöffnungen in Hauptflussrichtung aufweisen. Durch die Anordnung der Kanäle quer zur Hauptflussrichtung ist eine Ablenkung bzw. Aufteilung der Strömung bewirkt. Vorzugsweise erfolgt dies durch eine orthogonale Anordnung, selbstverständlich sind jedoch auch nichtrechtwinklige Anordnungen möglich. Zudem ist mindestens ein zweites, mit dem ersten Mischelement in Kontakt stehendes Mischelement vorgesehen, welches auf einer Vorderseite eine Mehrzahl insbesondere paralleler Kanäle quer, insbesondere orthogonal zur Hauptflussrichtung aufweist, wobei die Kanäle miteinander verbunden sind. Insbesondere in Seitenwänden dieser Kanäle sind Öffnungen vorgesehen, welche den Durchtritt eines Mediums in Hauptflussrichtung ermöglichen. Auf einer Rückseite des zweiten Mischelements sind eine Mehrzahl insbesondere paralleler Kanäle orthogonal zur Hauptflussrichtung angeordnet, welche miteinander nicht verbunden sind. Selbstverständlich sind sowohl in dem ersten als auch dem zweiten Mischelement neben einer parallelen Anordnung der Kanäle auch andere Anordnungen möglich, insbesondere konzentrisch angeordnete, bogenförmige Kanäle. Überraschenderweise hat sich gezeigt, dass durch zwei derartig unterschiedlich ausgebildete Mischelemente eine wesentlich verbesserte Durchmischung erreicht werden kann, als dies bei einer gleichen Anzahl von Mischelementen mit anderen bekannten Mischelementen möglich ist. Die Bauhöhe einer solchen statischen Mischvorrichtung ist daher reduzierbar, weil für eine ausreichende Durchmischung weniger Mischelemente angeordnet werden müssen. Hierdurch ist darüber hinaus auch das erzielbare Endgewicht einer solchen Vorrichtung weiter reduzierbar. Insgesamt wird die Handhabbarkeit einer solchen Vorrichtung daher enorm vereinfacht, insbesondere bei der Verwendung mit einer Austragvorrichtung, wie nachstehend noch beschrieben wird.A static mixing device according to the invention comprises at least a first mixing element, which on a front side a plurality of particular parallel channels transversely, in particular orthogonal to the main flow direction, wherein the channels are not connected to each other, but have passage openings in the main flow direction. By arranging the channels transversely to the main flow direction, a deflection or division of the flow is effected. This is preferably done by an orthogonal arrangement, but of course, non-orthogonal arrangements are possible. In addition, at least a second mixing element, which is in contact with the first mixing element, is provided which has on a front side a plurality of, in particular, parallel channels transversely, in particular orthogonal to the main flow direction, the channels being connected to one another. In particular, in side walls of these channels openings are provided, which allow the passage of a medium in the main flow direction. On a rear side of the second mixing element, a plurality of, in particular, parallel channels are arranged orthogonal to the main flow direction, which are not connected to one another. Of course, other arrangements are possible both in the first and the second mixing element in addition to a parallel arrangement of the channels, in particular concentrically arranged arcuate channels. Surprisingly, it has been found that a significantly improved mixing can be achieved by means of two mixing elements of such different design than is possible with an equal number of mixing elements with other known mixing elements. The overall height of such a static mixing device can therefore be reduced because fewer mixing elements have to be arranged for adequate mixing. In this way, moreover, the achievable final weight of such a device can be further reduced. Overall, the handling of such a device is therefore enormously simplified, especially when used with a discharge device, as will be described below.

Hier und im folgenden werden Kanäle eines mit einem weiteren Mischelements in Kontakt stehenden Mischelements als verbunden angesehen, wenn ein Austausch von Fluiden zwischen den betreffenden Kanälen insbesondere durch deren Seitenwände möglich ist. Unter der Hauptflussrichtung wird hier und im folgenden bei geraden statischen Mischvorrichtungen die Richtung entlang der Längsachse zwischen Eintritt und Austritt des Mediums verstanden. Selbstverständlich sind jedoch auch bspw. gekrümmte Mischvorrichtungen möglich; in einem solchen Falle folgt die Hauptflussrichtung der Krümmung der Mischvorrichtung. Unter der Vorderseite eines Mischelements wird hier und im folgenden jene Seite verstanden, welche dem Einlass für die zu mischenden Substanzen zugewandt ist. Unter einer Rückseite eines Mischelements wird hier und im folgenden jene Seite verstanden, welche dem Auslass für die zu mischenden Substanzen zugewandt ist.Here and in the following, channels of a mixing element in contact with another mixing element are considered to be connected if an exchange of fluids between the respective channels is possible, in particular through their side walls. In the case of straight static mixing devices, the direction of the main flow direction is understood here and hereinafter to mean the direction along the longitudinal axis between the inlet and outlet of the medium. Of course, however, for example, curved mixing devices are possible; in such a case, the main flow direction follows the curvature of the mixing device. The front side of a mixing element is understood here and below as the side which faces the inlet for the substances to be mixed. A rear side of a mixing element is understood here and below as the side which faces the outlet for the substances to be mixed.

In einer besonders bevorzugten Ausführungsform weist das erste Mischelement der Mischvorrichtung die folgenden Merkmale auf:

  • ■ Die Durchtrittsöffnungen benachbarter Kanäle sind jeweils in gegenüberliegenden Hälften der Vorderseite des Mischelements angeordnet;
  • ■ In einem mittleren Bereich aller Kanäle sind keine Durchtrittsöffnungen angeordnet.
Zudem weist das zweite Mischelement zusätzlich oder alternativ die folgenden Merkmale auf:
  • ■ Auf einer Vorderseite sind die Kanäle miteinander durch einen gemeinsamen Verbindungskanal verbunden, welcher derart angeordnet ist, dass seine Lage im wesentlichen einem rückseitigen Bereich entspricht, welcher frei von Durchtrittsöffnungen ist;
  • ■ Im Bereich zwischen einer ersten Seite des Verbindungskanals und einer Aussenkante des zweiten Mischelements sind Durchtritte angeordnet, welche nicht in Verbindung mit den vorderseitigen Kanälen stehen;
  • ■ Im Bereich zwischen einer zweiten Seite des Verbindungskanals und einer Aussenkante des zweiten Mischelements sind Durchtrittsöffnungen vorgesehen, welche in Verbindung zu den Kanälen stehen.
Es hat sich gezeigt, dass bereits nur durch die vorstehend genannte Ausbildung des ersten oder zweiten Mischelements alleine eine weitere Verbesserung der Durchmischung erreicht werden kann. Besonders bevorzugt ist jedoch eine gleichzeitige Ausbildung beider Mischelemente gemäss der vorstehenden Merkmale, wodurch sich die erzielbaren Mischresultate weiter verbessern.In a particularly preferred embodiment, the first mixing element of the mixing device has the following features:
  • ■ The passage openings of adjacent channels are each arranged in opposite halves of the front side of the mixing element;
  • ■ No passage openings are arranged in a middle area of all channels.
In addition, the second mixing element additionally or alternatively has the following features:
  • ■ On a front side, the channels are connected to each other by a common connecting channel, which is arranged such that its position substantially corresponds to a rear region, which is free of passage openings;
  • ■ In the region between a first side of the connecting channel and an outer edge of the second mixing element passages are arranged, which are not in communication with the front side channels;
  • ■ In the area between a second side of the connecting channel and an outer edge of the second mixing element passage openings are provided, which are in communication with the channels.
It has been shown that a further improvement of the mixing alone can be achieved only by the above-mentioned design of the first or second mixing element alone. However, particularly preferred is a simultaneous design of both mixing elements according to the above features, which further improve the achievable mixing results.

In einer weiteren bevorzugten Ausführungsform sind die ersten und zweiten Mischelemente alternierend angeordnet. Durch eine solche abwechselnde Anordnung der unterschiedlichen Mischelemente kann die Mischwirkung nochmals verbessert werden. Unter einer alternierenden Anordnung werden hierbei insbesondere bevorzugt Anordnungen verstanden, bei welchen kein erstes (bzw. zweites) Mischelement direkt benachbart zu einem weiteren, ersten (bzw. zweiten) Mischelement angeordnet ist. Als Varianten einer solchen alternierenden Anordnung sind aber bspw. auch gruppenweise alternierende Anordnungen möglich, also solche Anordnungen, in denen auf eine bestimmte Anzahl eines ersten Mischelements eine Anzahl von zweiten Mischelementen folgt.In a further preferred embodiment, the first and second mixing elements are arranged alternately. By such an alternating arrangement of the different mixing elements, the mixing effect can be further improved. In this context, an alternating arrangement is particularly preferably understood to mean arrangements in which no first (or second) mixing element is arranged directly adjacent to a further, first (or second) mixing element. As variants of such an alternating arrangement, however, it is also possible, for example, to have alternating arrangements in groups, that is to say those arrangements in which a number of second mixing elements follows a certain number of a first mixing element.

In einer weiteren Ausführungsform sind die ersten und zweiten Mischelemente als stapelbare Platten ausgebildet. Derartige Platten sind bspw. im Kunststoff-Spritzgussverfahren besonders einfach und mit bekannten Mitteln herstellbar. Die Stapelbarkeit kann hierbei durch verschiedenste Mittel bewirkt sein, bspw. durch zueinander insbesondere spezifisch kompatible Bereiche benachbarter Platten, insbesondere Erhöhungen und Vertiefungen. Hierbei ist es besonders bevorzugt, dass die Platten aussen rund, insbesondere mit gleichem Aussendurchmesser ausgebildet sind.In a further embodiment, the first and second mixing elements are designed as stackable plates. Such plates are, for example, in the plastic injection molding process particularly simple and can be produced by known means. The stackability can in this case be effected by a variety of means, for example by mutually particularly specifically compatible areas of adjacent plates, in particular elevations and depressions. It is particularly preferred that the plates outside are round, in particular formed with the same outer diameter.

Gemäss einer besonders vorteilhaften Ausführungsform sind die ersten und zweiten Mischelemente um einen bestimmten Winkel bezogen auf ein an beiden Mischelementen vorhandenes, vergleichbares strukturelles Merkmal gegeneinander verdreht gestapelt. Besonders bevorzugt ist das jeweils nächste Mischelement hierbei gegenüber dem vorangehenden Mischelement um diesen bestimmten Winkel verdreht angeordnet. Hierbei ändert sich insbesondere die Drehrichtung, um die einzelne Mischelemente verdreht werden, entlang der statischen Mischvorrichtung nicht. Hierdurch kann die erzielbare Durchmischung nochmals verbessert werden.According to a particularly advantageous embodiment, the first and second mixing elements are stacked against each other at a certain angle relative to a comparable structural feature present on both mixing elements. Particularly preferably, the respective next mixing element is in this case arranged rotated relative to the preceding mixing element by this particular angle. In this case, in particular, the direction of rotation, by which the individual mixing elements are rotated, does not change along the static mixing device. As a result, the achievable mixing can be further improved.

In einer weiteren, besonders bevorzugten Ausführungsform folgt ein zweites Mischelement auf ein erstes Mischelement in Hauptflussrichtung, wobei die Kanäle dieses vorangehenden ersten Mischelements parallel zu den rückseitigen Kanälen des zweiten Mischelements angeordnet sind. Zudem folgt ein erstes Mischelement auf ein zweites Mischelement in Hauptflussrichtung, wobei die Kanäle dieses folgenden, ersten Mischelements um einen Winkel von 90° gegen die Kanäle auf der Rückseite des zweiten Mischelements verdreht ausgerichtet sind.In a further, particularly preferred embodiment, a second mixing element follows a first mixing element in the main flow direction, the channels of this preceding first mixing element being arranged parallel to the rear-side channels of the second mixing element. In addition, a first mixing element follows a second mixing element in the main flow direction, wherein the channels of this following, first mixing element are aligned rotated by an angle of 90 ° against the channels on the back of the second mixing element.

Es ist besonders vorteilhaft und bevorzugt, dass die Abfolge der Mischelemente paarweise Anordnungen der ersten und zweiten Mischelemente beinhaltet, wobei in jeder der paarweisen Anordnungen die Kanäle des ersten Mischelements parallel zu den rückseitigen Kanälen des zweiten Mischelements ausgerichtet sind, jedoch in Hauptflussrichtung die Kanäle einer folgenden, paarweisen Anordung jeweils gegenüber einer vorangehenden Anordung um einen Winkel von 90° verdreht angeordnet sind.It is particularly advantageous and preferred that the sequence of mixing elements include pairwise arrangements of the first and second mixing elements, wherein in each of the paired arrangements the channels of the first mixing element are aligned parallel to the backside channels of the second mixing element, but in the main flow direction the channels of a subsequent one , Paired arrangement are each arranged rotated in relation to a preceding arrangement by an angle of 90 °.

Darüber hinaus können die Mischelemente Mittel zum verdrehgesicherten Stapeln insbesondere unter einem Winkel von 90° oder einem gradzahligen Vielfachen von 90° aufweisen. Besonders bevorzugt sind insbesondere in einem Randbereich der Mischelemente Nocken angeordnet, welche in einer Stapelung von Mischelementen zu Vertiefungen benachbarter Mischelemente kompatibel sind. Hierdurch kann in einfacher Weise ein verdrehgesichertes Stapeln bei grösstmöglicher verbleibender Flexibilität im Aufbau gewährleistet werden.In addition, the mixing elements can have means for rotation-proof stacking, in particular at an angle of 90 ° or an even multiple of 90 °. Particularly preferably, in particular in an edge region of the mixing elements cams are arranged, which are compatible in a stack of mixing elements to depressions of adjacent mixing elements. This can be ensured in a simple manner a non-rotating stacking with the greatest possible flexibility remaining in the structure.

Gemäss einer weiteren, besonders vorteilhaften Ausgestaltung der Erfindung ist in Hauptflussrichtung vor einem ersten Mischelement ein Eingangsstück und/oder in Hauptflussrichtung nach einem letzten Mischelement ein Endstück vorgesehen. Durch ein solches Eingangsstück kann wirkungsvoll eine Entspannung der insbesondere unter Druck aus einem Vorratsbehältnis gepressten, zu mischenden Komponenten bewirkt werden, so dass ein erstes Mischelement flächig angeströmt wird. Zudem kann eine Voraufteilung des Fluidstromes auf die insbesondere auf gegenüberliegenden Seiten benachbarter Kanäle angeordneten Durchtrittsöffnungen eines ersten Mischelements bewirkt werden. Ein Endstück kann bevorzugt zum Zusammenführen des Fluidstromes an einer Auslassöffnung angewendet werden; selbstverständlich können auch an einem solchen Endstück weitere Mittel, insbesondere Schikanen vorgesehen sein, welche der Durchmischung dienen.According to a further, particularly advantageous embodiment of the invention, an input piece is provided in the main flow direction in front of a first mixing element and / or an end piece in the main flow direction after a final mixing element. By means of such an input piece, it is possible effectively to effect a relaxation of the components which are in particular pressed under pressure from a storage container and to be mixed, so that a first mixing element is flowed over flatly. In addition, a pre-division of the fluid flow to the in particular arranged on opposite sides of adjacent channels passage openings of a first mixing element can be effected. An end piece may preferably be used for merging the fluid stream at an outlet opening; Of course, further means, in particular baffles, which serve for thorough mixing can also be provided on such an end piece.

Vorteilhafterweise sind die Mischelemente und ggf. das Eingangsstück und/oder das Endstück in einer Hülse insbesondere austauschbar angeordnet. Hierdurch kann sowohl die Herstellung vereinfacht als auch für spezielle Anwendungen die Austauschbarkeit von Mischelementen bewirkt werden. Es ist weiter bevorzugt, dass die Hülse insbesondere reversibel mit einem Anschlussstück zur Verbindung mit einer Austragsvorrichtung verschlossen ist und/oder verschliessbar ausgebildet ist. Hierbei kann es sich insbesondere bspw. um Schraub- und/oder Steckverbindungen, aber auch Spannverbindungen handeln; bevorzugt werden Schraubverbindungen verwendet.Advantageously, the mixing elements and optionally the input piece and / or the end piece are arranged interchangeably in a sleeve in particular. As a result, both the production can be simplified and the interchangeability of mixing elements can be effected for specific applications. It is further preferred that the sleeve is in particular reversibly closed with a connection piece for connection to a discharge device and / or lockable. This may in particular be, for example, screw and / or plug connections, but also clamping connections; preferably screw connections are used.

Eine Mischvorrichtung der genannten Art findet vorteilhaft Verwendung zur Mischung von mindestens zwei in einem Vorratsbehältnis mit mindestens zwei Kompartimenten bevorrateten Substanzen, wobei die Mischvorrichtung lösbar oder fest an dem Vorratsbehältnis oder einer Austragvorrichtung anordbar bzw. angeordnet ist. Derartige Vorratsbehältnisse sind insbesondere bei Klebund Dichtmitteln in der Regel für den einmaligen Gebrauch bestimmt, also nach Entleerung nicht nachfüllbar. Insbesondere für die genannten Anwendungen sind die statischen Mischvorrichtungen oftmals ebenfalls nicht mehrfach verwendbar. Vorteilhafterweise können derartige Vorratsbehältnisse daher bereits insbesondere fest mit einer solchen statischen Mischvorrichtung verbunden hergestellt und vertrieben werden, was die Handhabbarkeit für den Endverbraucher durch verringerten Manipulationsbedarf nochmals vereinfacht.A mixing device of the type mentioned advantageously finds use for mixing at least two substances stored in a storage container having at least two compartments, wherein the mixing device can be arranged or arranged detachably or firmly on the storage container or a discharge device. Such storage containers are intended in particular for adhesives and sealants usually for single use, so not emptied after emptying. In particular, for the applications mentioned static static devices are often also not reusable. Advantageously, such storage containers can therefore already be made and sold in particular firmly connected to such a static mixing device, which further simplifies the handling for the end user by reducing the need for manipulation.

Ein weiterer Aspekt der Erfindung betrifft also ein Vorratsbehältnis in Kombination mit der Mischvorrichtung, insbesondere einen Mehrkammer-Schlauchbeutel mit mindestens zwei Kompartimenten, wobei die Mischvorrichtung der vorstehend beschriebenen Art lösbar oder fest mit dem Vorratsbehältnis verbindbar bzw. verbunden ist. Eine solche Verbindung kann insbesondere herstellseitig und irreversibel bewirkt sein. Es ist jedoch auch möglich, insbesondere Steck-, Schraub- und/oder Spannverbindungen vorzusehen. Zudem ist es im Rahmen einer grösstmöglichen Reduzierung der Bauhöhe vorteilhaft, eine im wesentlichen direkte Verbindung zwischen dem Auslass des Vorratsbehältnisses und der statischen Mischvorrichtung zu gewährleisten, also möglichst auf Adapter o.ä. zu verzichten.Another aspect of the invention thus relates to a storage container in combination with the mixing device, in particular a multi-chamber tubular bag with at least two compartments, wherein the mixing device of the type described above is detachably or firmly connected or connected to the storage container. Such a connection can in particular be caused by the manufacturer and irreversibly. However, it is also possible to provide in particular plug, screw and / or clamping connections. In addition, it is advantageous in the context of a greatest possible reduction of the height to ensure a substantially direct connection between the outlet of the storage container and the static mixing device, so as possible on adapter or similar. to renounce.

Ein zusätzlicher Aspekt der Erfindung betrifft zudem eine Austragvorrichtung zum Auslassen von mindestens zwei zu mischenden Substanzen aus einem entweder kombinierten Vorratsbehältnis mit mindestens zwei Kompartimenten, oder mehreren separaten Vorratsbehältnissen in Kombination mit der Mischvorrichtung. Hierbei kann es sich insbesondere um parallele oder koaxiale Doppelkartuschensysteme handeln. Derartige Austragvorrichtungen sind in verschiedensten Ausführungen, insbesondere pneumatisch oder manuell zu betreiben, am Markt erhältlich, bspw. von Mixpac (System 400) oder PC Cox Ltd. (RBA 200B). Insbesondere können auch Mehrkammer-Schlauchbeutelsysteme verwendet werden. Der Austritt des bzw. der Vorratsbehältnisse ist mit der statischen Mischvorrichtung verbindbar bzw. verbunden. Derartige Austragvorrichtungen sind insbesondere auch für EinKomponentensysteme hinlänglich bekannt, z.B. MK Maskinsfabrik (TS 485 X). Im Zuge der vorliegenden Erfindung ist insbesondere vorteilhaft, dass eine im wesentlichen direkte Verbindung des Vorratsbehältnisses mit der statischen Mischvorrichtung vorgesehen sein kann. Aus dem Stand der Technik, insbesondere der WO 01/44074 sind Probleme der unzureichenden Durchmischung mit statischen Mischvorrichtungen bekannt, die i.d.R. durch ein getrenntes Führen der zu mischenden Komponenten vor dem eigentlichen Mischsystem zumindest teilweise überwunden werden können. Dies resultiert jedoch in einer unerwünschten Verlängerung der betriebsbereiten Austragvorrichtung, wodurch die Handhabbarkeit verschlechtert ist. Durch eine statische Mischvorrichtung gemäss der vorliegenden Erfindung ist eine solchermassen getrennte Aufgabe der Komponenten auf die Mischvorrichtung nicht notwendig. Es kann also eine im wesentlichen direkte Verbindung zwischen dem Auslass eines Vorratsbehältnisses und der statischen Mischvorrichtung hergestellt werden, ohne dass sich dies negativ auf das Mischungsergebnis auswirken würde. "Im wesentlichen direkt" bedeutet also in diesem Zusammenhang, dass technisch keine Distanz zwischen Vorratsbehältnis und statischer Mischvorrichtung zur Erzielung der Durchmischung notwendig ist; dies schliesst jedoch nicht aus, dass sich ggf. aufgrund des modularen Aufbaus und/oder ggf. notwendiger Dichtelemente etc. eine geringfügige Beabstandung ergeben kann.An additional aspect of the invention also relates to a discharge device for discharging at least two substances to be mixed from an either combined storage container having at least two compartments, or a plurality of separate storage containers in combination with the mixing device. These may in particular be parallel or coaxial double cartridge systems. Such discharge devices are available in various designs, in particular pneumatically or manually, available on the market, for example. Of Mixpac (System 400) or PC Cox Ltd. (RBA 200B). In particular, multi-chamber tubular bag systems can be used. The outlet of the storage container (s) can be connected or connected to the static mixing device. Such discharge devices are particularly well known for one-component systems, for example MK Maskinsfabrik (TS 485 X). In the course of the present invention, it is particularly advantageous that a substantially direct connection of the storage container to the static mixing device can be provided. From the prior art, in particular the WO 01/44074 Problems of insufficient mixing with static mixing devices are known, which can usually be at least partially overcome by separately guiding the components to be mixed before the actual mixing system. However, this results in an undesirable extension of the operative discharge device, whereby the handling is deteriorated. By a static mixing device according to the present invention, such a separate task of the components on the mixing device is not necessary. Thus, a substantially direct connection between the outlet of a storage container and the static mixing device can be produced without this having a negative effect on the mixing result. "Substantially direct" in this context means that technically no distance between storage container and static mixing device to achieve the mixing is necessary; However, this does not rule out that possibly due to the modular structure and / or possibly necessary sealing elements, etc. may result in a slight spacing.

Das erfindungsgemässe Verfahren zum Austragen von mindestens zwei zu mischenden Substanzen insbesondere aus einem Vorratsbehältnis mit mindestens zwei Kompartimenten zeichnet sich also dadurch aus, dass die Mischung der Substanzen im wesentlichen ausschliesslich durch eine statische Mischvorrichtung, wie vorstehend geschildert, erfolgt. "Im wesentlichen" bedeutet hier, dass ggf. weitere Mischung ausserhalb der statischen Mischvorrichtung erfolgen kann, diese jedoch für den jeweiligen Anwendungszweck nicht von vordergründiger Bedeutung ist. Hierbei sind im Rahmen der Erfindung insbesondere auch zusätzliche Auftragsdüsen o.ä. verwendbar, welche neben der Fokussierung der aufzutragenden Mischung ggf. eine weitere Mischung bewirken könnten.The inventive method for discharging at least two substances to be mixed in particular from a storage container with at least two compartments is thus characterized by the fact that the mixture of substances substantially exclusively by a static mixing device, as described above, takes place. "Substantially" means here that, if necessary, further mixing can take place outside the static mixing device, but this is not of superficial importance for the respective application. In this case, in the context of the invention, in particular also additional application nozzles or the like. usable, which could possibly cause a further mixture in addition to the focus of the mixture to be applied.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen und Figuren näher erläutert, ohne dass der Erfindungsgegenstand hierauf zu beschränken wäre. Es zeigen:

Fig. 1:
Explosionsdarstellung einer statischen Mischvorrichtung;
Fig. 2:
Erstes Mischelement, Vorderseite;
Fig. 3:
Zweites Mischelement, Vorderseite;
Fig. 4:
Zweites Mischelement; Rückseite;
Fig. 5:
Eingangsstück, Vorderseite;
Fig. 6:
Endstück, Vorderseite;
Fig. 7:
Hülse;
Fig. 8:
Anschlussstück;
Fig. 9:
Statische Mischvorrichtung, schematisch.
The invention will be explained in more detail with reference to embodiments and figures, without the subject of the invention would be limited thereto. Show it:
Fig. 1:
Exploded view of a static mixing device;
Fig. 2:
First mixing element, front side;
3:
Second mixing element, front side;
4:
Second mixing element; Back;
Fig. 5:
Input piece, front side;
Fig. 6:
Tail, front;
Fig. 7:
sleeve;
Fig. 8:
Fitting;
Fig. 9:
Static mixing device, schematic.

In Figur 1 ist eine aus einer Mehrzahl von ersten Mischelementen A und zweiten Mischelementen B aufgebaute, statische Mischvorrichtung 1 in Explosionsdarstellung gezeigt. Der Aufbau der ersten und zweiten Mischelemente A,B wird nachfolgend in den Figuren 2 und 3 eingehend erläutert. Die Mischelemente A und B sind als stapelbare Platten ausgebildet. Die statische Mischvorrichtung 1 weist zudem ein Anschlussstück 11 (siehe auch Figur 8) sowie ein Eingangsstück 8 und ein Endstück 9 auf (siehe auch Figuren 5 und 6). Das Anschlussstück 11 dient zum Anschluss der statischen Mischvorrichtung 1 an eine nicht im Detail gezeigte, insbesondere handelsübliche Austragvorrichtung. Es können bspw. Steck-, Schraub- und/oder Spannverbindungen vorgesehen sein zur Anbindung an eine solche Austragvorrichtung. Die statische Mischvorrichtung 1 wird in der Hauptflussrichtung H von einer Mehrzahl, insbesondere zwei zu mischenden, insbesondere fliessfähigen, viskosen Substanzen durchströmt. In der Regel muss hierfür aufgrund des Gegendrucks der Mischelemente ein Arbeitsdruck in der Grössenordnung von bis zu 6.0 bis 6.5 bar in Hauptflussrichtung H aufgewendet werden. Die Mischelemente A und B sind in dem Ausführungsbeispiel alternierend in Hauptflussrichtung H folgendermassen angeordnet: A, B, A, B, usw.. Die einzelnen Mischelemente A,B sind hierbei mit in Haupflussrichtung H zunehmendem Verdrehwinkel α angeordnet, und zwar jeweils jedes nächste Mischelement A bzw. B um zusätzliche 90° gegenüber der Lage des vorangehenden Mischelements A bzw. B.FIG. 1 shows an exploded view of a static mixing device 1 constructed from a plurality of first mixing elements A and second mixing elements B. The construction of the first and second mixing elements A, B will be explained in detail below in FIGS. 2 and 3. The mixing elements A and B are designed as stackable plates. The static mixing device 1 also has a connecting piece 11 (see also FIG. 8) as well as an input piece 8 and an end piece 9 (see also FIGS. 5 and 6). The connecting piece 11 serves to connect the static mixing device 1 to a not shown in detail, in particular commercial discharge device. For example, plug-in, screwed and / or clamping connections can be provided for connection to such a discharge device. The static mixing device 1 is traversed in the main flow direction H by a plurality, in particular two, in particular two viscous substances to be mixed, in particular free-flowing. As a rule, due to the backpressure of the mixing elements, a working pressure of the order of magnitude of up to 6.0 to 6.5 bar in the main flow direction H must be used. In the exemplary embodiment, the mixing elements A and B are arranged alternately in the main flow direction H as follows: A, B, A, B, etc. The individual mixing elements A, B are arranged here with an angle of rotation α increasing in the direction of the main flow H, specifically in each case each next mixing element A or B by an additional 90 ° relative to the position of the preceding mixing element A or B.

Figur 2 zeigt ein erstes Mischelement A von einer Vorderseite V im Detail. Das Mischelement A weist eine Mehrzahl von parallelen Kanälen 2 auf, welche miteinander nicht verbunden sind. Die einzelnen Kanäle weisen jeweils Durchtrittsöffnungen 3 zur Rückseite des Mischelements A auf. Die Durchtrittsöffnungen 3 benachbarter Kanäle 2 befinden sich auf entgegengesetzten Seiten des Mischelements A. Hierbei ist ein mittlerer Bereich aller Kanäle 2 frei von jeglichen Durchtrittsöffnungen. Auf der nicht im Detail gezeigten Rückseite des Mischelements A befinden sich keine Kanäle 2. Das Mischelement 2 weist zudem Mittel zum verdrehgesicherten Stapeln von Mischelementen A,B auf. Hierbei handelt es sich vorzugsweise um Nocken bzw. zu diesen Nocken kompatible Aussparungen. Nocken und Aussparungen sind hierbei derart an gegenüberliegenden Seiten des Mischelements A angeordnet, dass ein Stapeln unter einem Verdrehwinkel α von 90° bzw. einem Vielfachen von 90° ermöglicht ist.FIG. 2 shows a first mixing element A from a front side V in detail. The mixing element A has a plurality of parallel channels 2, which are not connected to each other. The individual channels each have passage openings 3 to the rear of the mixing element A. The passage openings 3 of adjacent channels 2 are located on opposite sides of the mixing element A. In this case, a middle region of all channels 2 is free of any passage openings. There are no channels 2 on the rear side of the mixing element A, which is not shown in detail. The mixing element 2 also has means for the rotationally secured stacking of mixing elements A, B. These are preferably cams or recesses compatible with these cams. Cams and recesses are in this case arranged on opposite sides of the mixing element A, that a stacking at an angle of rotation α of 90 ° or a multiple of 90 ° is made possible.

Figur 3 zeigt die Vorderseite V eines Mischelements B. Das Mischelement B weist eine Mehrzahl von Kanälen 2 auf, welche untereinander mittels eines Verbindungskanals 5 verbunden sind. Jenseits einer ersten Seite dieses Verbindungskanals 5 - in der Figur rechts vom Verbindungskanal 5 - weisen die Kanäle 2 keine Durchtrittsöffnungen auf. Jedoch sind auf dieser Seite Durchtritte 6 vorhanden, welche nicht mit den Kanälen 2 verbunden sind. Jenseits einer zweiten Seite dieses Verbindungskanals - in der Figur links vom Verbindungskanal 5 - weisen die Kanäle jeweils mindestens eine Öffnung 4 in einer Seitenwand auf, wodurch die Kanäle 2 mit Durchtrittsöffnungen 3 verbunden sind.FIG. 3 shows the front side V of a mixing element B. The mixing element B has a plurality of channels 2 which are interconnected by means of a connecting channel 5. Beyond a first side of this connection channel 5 - in the figure to the right of the connecting channel 5 - the channels 2 have no passage openings. However, passages 6 are present on this side, which are not connected to the channels 2. Beyond a second side of this connection channel - in the figure to the left of the connecting channel 5 - the channels each have at least one opening 4 in a side wall, whereby the channels 2 are connected to passage openings 3.

Figur 4 zeigt die Rückseite R eines Mischelements B gemäss Figur 3. Diese Rückseite R ist in dem Ausführungsbeispiel weitestgehend analog zur Vorderseite eines Mischelements A gestaltet: Die Rückseite R des Mischelements B weist eine Mehrzahl von Kanälen 2 auf, welche untereinander nicht verbunden sind. In einem mittleren Bereich aller Kanäle 2 - in der Figur der Bereich zwischen den gestrichelten Linien - sind keine Durchtrittsöffnungen 3 vorhanden. In einem in der Figur rechts von diesem mittleren Bereich gelegenen Bereich weisen die Kanäle 2 Durchtrittsöffnungen 3 auf; diese sind in Figur 3 als Durchtritte 6 bezeichnet. Diese stehen also auf der Vorderseite V des Mischelements B als Durchtritte 6 nicht in Verbindung mit den vorderseitigen Kanälen 2 (siehe Figur 3), wohingegen sie auf der Rückseite R als Durchtrittsöffnungen 3 in Verbindung mit den rückseitigen Kanälen 2 stehen. In einem in der Figur links von dem mittleren Bereich gelegenen Bereich weisen die Kanäle 2 ebenfalls Durchtrittsöffnungen 3 auf, welche über die Öffnungen 4 mit den vorderseitigen Kanälen 2 verbunden sind. Die Durchtrittsöffnungen 3 benachbarter Kanäle 2 auf der Rückseite R des Mischelements B sind auf gegenüberliegenden Seiten des Mischelements B angeordnet.FIG. 4 shows the rear side R of a mixing element B according to FIG. 3. In the exemplary embodiment, this rear side R is largely analogous to the front side of a mixing element A: The rear side R of the mixing element B has a plurality of channels 2 which are not connected to each other. In a central region of all channels 2 - in the figure, the area between the dashed lines - no passage openings 3 are present. In a region located in the figure to the right of this central region, the channels 2 have passage openings 3; these are referred to as passages 6 in FIG. Thus, these are not in communication with the front channels 2 (see FIG. 3) on the front side V of the mixing element B as passages 6, whereas they stand on the rear side R as passage openings 3 in connection with the back side channels 2. In a region located to the left of the middle region in the figure, the channels 2 likewise have passage openings 3, which are connected to the front channels 2 via the openings 4. The passage openings 3 of adjacent channels 2 on the rear side R of the mixing element B are arranged on opposite sides of the mixing element B.

Figur 5 zeigt ein Eingangsstück 8, welches in Hauptflussrichtung H einem ersten Mischelement vorgeschaltet ist. Dieses Eingangsstück weist besonders vorteilhaft einen Mittelsteg 16 auf, welcher im mittleren Bereich der Kanäle 2 des in Hauptflussrichtung H ersten Mischelements A angeordnet ist. Durch ein solches Eingangsstück 8 ist eine Voraufteilung des Fluidstroms auf die auf gegenüberliegenden Seiten benachbarter Kanäle 2 angeordneten Durchtrittsöffnungen 3 eines ersten Mischelements A oder B bewirkbar.Figure 5 shows an input piece 8, which is connected in the main flow direction H a first mixing element. This input piece particularly advantageously has a central web 16, which is arranged in the middle region of the channels 2 of the first mixing element A in the main flow direction H. By means of such an input piece 8, a pre-division of the fluid flow onto the passage openings 3 of a first mixing element A or B arranged on opposite sides of adjacent channels 2 can be effected.

Figur 6 zeigt ein Endstück 6, welches nach einem in Hauptflussrichtung H letzten Mischelement B angeordnet ist. In einem solchen Endstück 6 wird der Fluidstrom an einer Austrittsöffnung 18 wieder zusammengeführt. Das Endstück 6 verfügt zudem über Schikanen 17, welche vorzugsweise konzentrisch um die Austrittsöffnung 17 herum angeordnet sind und ebenfalls der Durchmischung dienen.FIG. 6 shows an end piece 6, which is arranged after a mixing element B that is the last in the direction of the main flow H. In such a End piece 6, the fluid flow at an outlet opening 18 is brought together again. The tail 6 also has baffles 17, which are preferably arranged concentrically around the outlet opening 17 around and also serve the mixing.

Figur 7 zeigt eine Hülse 10 zur Aufnahme einer Mehrzahl von Mischelementen A und B, des Eingangsstücks 8 und des Endstücks 9. Die Hülse wird anschliessend mit einem in Figur 8 gezeigten Anschlussstück 11 verschlossen. Hierbei kann es sich sowohl um eine lösbare Verbindung von Hülse 10 und Anschlussstück 11 handeln als auch um eine irreversible Verbindung. Figur 9 zeigt eine gebrauchsfertige Mischvorrichtung, welche über das Anschlussstück 11 insbesondere an handelsübliche Austragvorrichtungen anschliessbar ist. Innerhalb der Hülse 10 befindet sich die in der Zeichnung lediglich schematisch angedeutete, aus einer Mehrzahl von Mischelementen A,B aufgebaute statische Mischvorrichtung. Bevorzugte Materialien für die Mischelemente A,B, Eingangs- und Endstück sowie die Hülse 10 sind insbesondere Polypropylen (PP), Polyethylen (PE) und Polyamide, welche ggf. glasfaserverstärkt sein können. Selbstverständlich können jedoch für den jeweiligen Anwendungszweck auch andere Materialien, insbesondere Kunststoffe oder auch Metalle ausgewählt werden; derartige Materialien und ihre spezifischen Vorzüge sind dem Fachmann bekannt.Figure 7 shows a sleeve 10 for receiving a plurality of mixing elements A and B, the input piece 8 and the end piece 9. The sleeve is then closed with a connector 11 shown in Figure 8. This can be both a detachable connection of sleeve 10 and connector 11 as well as an irreversible connection. FIG. 9 shows a ready-to-use mixing device, which can be connected via the connecting piece 11, in particular to commercially available discharge devices. Within the sleeve 10 is the static mixing device constructed in the drawing, only schematically indicated, constructed from a plurality of mixing elements A, B. Preferred materials for the mixing elements A, B, inlet and tail, and the sleeve 10 are in particular polypropylene (PP), polyethylene (PE) and polyamides, which may optionally be glass fiber reinforced. Of course, however, other materials, especially plastics or metals may be selected for the particular application; Such materials and their specific advantages are known to those skilled in the art.

Es wurden Vergleichsversuche einer erfindungsgemässen statischen Mischvorrichtung 1 mit je 11 Mischelementen A und B gemäss der in Figur 1 gezeigten Anordnung mit einem Standard-Mischer Mixpac von Statomix (Innendurchmesser 10mm, Länge 217mm) vorgenommen. Hierbei wurden die Komponenten des Zwei-Komponenten Klebstoffs Dinitrol 512 2K HM über die statischen Mischvorrichtungen gemischt und die erzielbaren Klebeeigenschaften anhand der zu verschiedenen Zeitpunkten gemessenen Zugscherfestigkeiten miteinander verglichen. In diesen Vergleichsversuchen wurde Glas mit lackiertem Blech verklebt, wobei beide Substrate mit Glasprimer bzw. Lackprimer vorbehandelt waren. Derartige Vorbehandlungen entsprechen der gängigen Praxis des Fachmanns. Die Komponenten wurden hierbei unter einem Druck von 6 bar durch die statischen Mischvorrichtungen gepresst. Hierbei wurden die folgenden Resultate erhalten (Tabelle 1): Tabelle 1: Vergleichsversuche Zugscherfestigkeit Statische Mischvorrichtung gemäss Fig. 1 Statische Mischvorrichtung "Mixpac" nach ½ h 0.18 MPa 0.13 Mpa nach 1 h 0.31 MPa 0.3 MPa nach 24 h 5.9 MPa 7.0 MPa Comparative tests of a static mixing device 1 according to the invention with 11 mixing elements A and B according to the arrangement shown in FIG. 1 were carried out using a standard mixer Mixpac from Statomix (internal diameter 10 mm, length 217 mm). Here, the components of the two-component adhesive Dinitrol 512 2K HM were mixed via the static mixing devices and the achievable adhesive properties based on the tensile shear strengths measured at different times compared. In these comparative experiments, glass was glued to painted sheet metal, with both substrates having been pretreated with glass primer or paint primer. Such pretreatments correspond to the usual practice of the skilled person. The components were then pressed under a pressure of 6 bar through the static mixing devices. The following results were obtained (Table 1): Table 1: Comparative experiments Tensile shear strength Static mixing device according to FIG. 1 Static mixing device "Mixpac" after ½ h 0.18 MPa 0.13 Mpa after 1 h 0.31 MPa 0.3 MPa after 24 h 5.9 MPa 7.0 MPa

Aus den ermittelten Zugscherfestigkeiten ist ersichtlich, dass sowohl kurzzeitig nach der Verklebung als auch in der Endfestigkeit Klebeergebnisse erzielt werden können, welche bei Mischung der Komponenten über eine erfindungsgemässe Mischvorrichtung vergleichbar sind mit einer Mischung der Komponenten über die Mischvorrichtung Mixpac. Aus den erhaltenen Zugscherfestigkeiten der resultierenden Verklebung kann auf eine erzielte Durchmischung der Komponenten geschlossen werden, welche allen Anforderungen genügt. Im Vergleich zu dem Referenz-Mischer Mixpac ist der erfindungsgemässe Mischer jedoch erheblich kompakter bei einer Länge von lediglich 130 mm (bereits incl. Anschlussstück 11 und Hülse 10 mit Auslassstutzen) und einer Breite von 41.5 mm. Zum Vergleich: Der Standard-Mischer Mixpac von Statomix weist eine Länge von 217mm auf (s.o.).From the tensile shear strengths determined, it can be seen that adhesive results can be achieved both briefly after the bonding and in the final strength, which are comparable when the components are mixed via a mixing device according to the invention with a mixture of the components via the Mixpac mixing device. From the resulting tensile shear strength of the resulting bond can be concluded that an achieved mixing of the components, which meets all requirements. In comparison to the reference mixer Mixpac, however, the mixer according to the invention is considerably more compact with a length of only 130 mm (already including connecting piece 11 and sleeve 10 with outlet connection) and a width of 41.5 mm. By comparison, Statomix's Mixpac mixer has a length of 217mm (see above).

Claims (16)

  1. Static mixing device (1), containing
    ■ at least one first mixing element (A), which on a front side (V) has a plurality of, in particular, parallel channels (2) running transversely, in particular orthogonally, to a main flow direction (H), the channels (2) not being interconnected, yet having pass-through openings (3) in the main flow direction (H); and
    ■ at least one second mixing element (B), which is in contact with the first mixing element (A) and on a front side (V) has a plurality of, in particular, parallel channels (2) running transversely, in particular orthogonally, to the main flow direction (H), the channels (2) being interconnected; in the channels (2), in particular in side walls of the channels (2), openings (4) being provided, which allow the passage of a medium in the main flow direction (H) from the channels (2) of the front side (V) to the rear side (R) of the second mixing element (B); and on a rear side (R) of the second mixing element (B) there being disposed a plurality of, in particular, parallel channels (2) running orthogonally to the main flow direction (H), which are not interconnected,
    wherein the channels (2) of the first mixing element (A) and of the second mixing element (B) are arranged such that a passage of a medium through the mixing elements (A, B) is allowed.
  2. Mixing device (1) according to Claim 1, characterized in that the first mixing element (A) has the following features:
    ■ the pass-through openings (3) of adjacent channels (2) are disposed respectively in opposite halves of the front side of the mixing element (A);
    ■ in a middle region of all channels (2), no pass-through openings (3) are provided;
    and/or the second mixing element (B) has the following features:
    ■ on a front side (V), the channels (2) are interconnected by a common connecting channel (5), which is arranged such that its position essentially corresponds to a rear-side region which is free from pass-through openings (3);
    ■ in the region between a first side of the connecting channel and an outer edge of the second mixing element, passages are provided which are not connected to the front-side channels;
    ■ in the region between a second side of the connecting channel and an outer edge of the second mixing element, pass-through openings are provided which are connected to the channels.
  3. Mixing device (1) according to Claim 1 or 2, wherein the first and second mixing elements (A, B) are disposed in alternating arrangement.
  4. Mixing device (1) according to one of the previous claims, wherein the first and second mixing elements (A, B) are configured as stackable plates.
  5. Mixing device (1) according to one of Claims 3 or 4, characterized in that the first and second mixing elements (A, B) are stacked such that they are mutually twisted by an angle (α) related to a comparable structural feature present on both mixing elements, in particular related to parallel channels (2).
  6. Mixing device (1) according to one of Claims 3 to 5, characterized in that
    ■ a second mixing element (B) follows on from a first mixing element (A) in the main flow direction (H), the channels (2) of this preceding first mixing element (A) being disposed parallel to the rear-side channels (2) of the second mixing element (B);
    and in that
    ■ a first mixing element (A) follows on from a second mixing element (B) in the main flow direction (H), the channels (2) of this following first mixing element (A) being aligned at an angle (α) of 90° to the rear-side channels (2) of the second mixing element (B).
  7. Mixing device (1) according to one of Claims 3 to 6, characterized in that the sequence of the first and second mixing elements (A, B) contains paired arrangements (x, x+1, x+2, ...x+n) of the first and second mixing elements (A, B), in each of the paired arrangements (x, x+1, x+2, ...x+n) the channels (2) of the first mixing element (A) being aligned parallel to the rear-side channels (2) of the second mixing element (B), yet the channels of a following paired arrangement (x+1) in the main flow direction (H) respectively being arranged twisted by an angle (α) of 90° relative to a preceding arrangement (x).
  8. Mixing device (1) according to one of the previous claims, characterized in that the mixing elements (A, B) have means, in particular ridges and cavities, for stacking secured against twisting, in particular at an angle (α) of 90° or at an even-numbered multiple of 90°.
  9. Mixing device (1) according to one of the previous claims, characterized in that before a first mixing element (A, B) in the main flow direction (H) there is provided an entry piece (8), and after a last mixing element (A, B) in the main flow direction (H), an end piece (9).
  10. Mixing device (1) according to one of the previous claims, characterized in that the mixing elements (A, B) and, where appropriate, the entry piece (8) and/or the end piece (9) are disposed, in particular exchangeably, in a casing (10).
  11. Mixing device (1) according to Claim 10, characterized in that the casing (10) is closed off and/or is configured such that it can be closed off, in particular reversibly, with a connector (11) for connection to a discharge device.
  12. Mixing device (1) according to one of Claims 1 to 11, detachably or fixedly connectable or connected to a storage container, in particular a multi-chamber tubular bag having at least two compartments.
  13. Mixing device (1) according to one of Claims 1 to 11, essentially directly connectable or connected to an outlet of a storage container having at least two compartments, in particular a multi-chamber tubular bag, in a discharge device for letting at least two substances to be mixed out from the storage container.
  14. Method for discharging at least two substances to be mixed, in particular from a storage container having at least two compartments, characterized in that the mixing of the substances is essentially realized by a static mixing device (1) according to one of Claims 1 to 11.
  15. Use of a mixing device (1) according to one of Claims 1 to 11 for mixing at least two substances stored in a storage container having at least two compartments, wherein the mixing device (1) is or can be detachably or fixedly disposed on the storage container or a discharge device.
  16. Use according to Claim 15, characterized in that the discharge device in question is a commercially available discharge device for letting single-component or multi-component mixtures out from an exchangeable storage container.
EP03026474A 2003-11-20 2003-11-20 Static mixing device, discharging device and storage container provided with a static mixing device of this type, use of a static mixing device of this type as well as method of discharging Expired - Lifetime EP1533021B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES03026474T ES2295499T3 (en) 2003-11-20 2003-11-20 STATIC MIXING DEVICE, DISCHARGE DEVICE AND STORAGE CONTAINER WITH A MIXING DEVICE OF THIS TYPE. USE OF A MIXING DEVICE OF THIS TYPE AND PROCEDURE FOR DOWNLOAD.
DK03026474T DK1533021T3 (en) 2003-11-20 2003-11-20 Static mixing device, embodiment and storage container with such mixing device. Use of such mixing device and method of export
DE50308859T DE50308859D1 (en) 2003-11-20 2003-11-20 Static mixing device, discharge device and storage container with such a mixing device. Use of such a mixing device and method for discharging
AT03026474T ATE381381T1 (en) 2003-11-20 2003-11-20 STATIC MIXING DEVICE, DISCHARGE DEVICE AND STORAGE CONTAINER WITH SUCH A MIXING DEVICE. USE OF SUCH A MIXING DEVICE AND METHOD FOR DISCHARGING
EP03026474A EP1533021B1 (en) 2003-11-20 2003-11-20 Static mixing device, discharging device and storage container provided with a static mixing device of this type, use of a static mixing device of this type as well as method of discharging
US10/578,196 US20070081420A1 (en) 2003-11-20 2004-11-09 Static mixing device, discharge device and supply container comprising said mixing device, use of said mixing device and discharge method
CA002546177A CA2546177A1 (en) 2003-11-20 2004-11-09 Static mixing device, discharge device and supply container comprising said mixing device, use of said mixing device and discharge method
PCT/EP2004/012637 WO2005049186A2 (en) 2003-11-20 2004-11-09 Static mixing device, discharge device and supply container comprising said mixing device, use of said mixing device and discharge method
NO20062743A NO20062743L (en) 2003-11-20 2006-06-13 Static mixing device, withdrawal device and storage container with such mixing device, use of such mixing device, and method of withdrawal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03026474A EP1533021B1 (en) 2003-11-20 2003-11-20 Static mixing device, discharging device and storage container provided with a static mixing device of this type, use of a static mixing device of this type as well as method of discharging

Publications (2)

Publication Number Publication Date
EP1533021A1 EP1533021A1 (en) 2005-05-25
EP1533021B1 true EP1533021B1 (en) 2007-12-19

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EP03026474A Expired - Lifetime EP1533021B1 (en) 2003-11-20 2003-11-20 Static mixing device, discharging device and storage container provided with a static mixing device of this type, use of a static mixing device of this type as well as method of discharging

Country Status (9)

Country Link
US (1) US20070081420A1 (en)
EP (1) EP1533021B1 (en)
AT (1) ATE381381T1 (en)
CA (1) CA2546177A1 (en)
DE (1) DE50308859D1 (en)
DK (1) DK1533021T3 (en)
ES (1) ES2295499T3 (en)
NO (1) NO20062743L (en)
WO (1) WO2005049186A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080159069A1 (en) * 2005-04-06 2008-07-03 Stichting Voor De Technische Wentenschappen Inlet Section for Micro-Reactor
DE102006013411B4 (en) * 2006-03-15 2008-07-10 Helmut Knoblich Mobile device for mixing and discharging highly viscous masses
US9162206B2 (en) 2013-12-05 2015-10-20 Exxonmobil Research And Engineering Company Reactor bed component for securing rigid assemblies
EP3167954B1 (en) * 2015-11-12 2019-03-27 Doosan Heavy Industries & Construction Co., Ltd. Static mixer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382534A (en) * 1965-08-19 1968-05-14 Monsanto Co Plate type fluid mixer
US3856270A (en) * 1973-10-09 1974-12-24 Fmc Corp Static fluid mixing apparatus
US4109680A (en) * 1977-01-03 1978-08-29 Lavender Ardis R Plate type fluid distributing device
US5137369A (en) * 1991-01-18 1992-08-11 Hodan John A Static mixing device
US6899453B2 (en) * 2000-10-17 2005-05-31 Sika Schweiz Ag Static mixer and method for mixing a main component with an additive
US20030048694A1 (en) * 2001-09-12 2003-03-13 Tah Industries Inc. Material mixing device and method
DE50200013D1 (en) * 2002-03-22 2003-07-31 Sulzer Chemtech Ag Winterthur Pipe mixer with a longitudinal installation body

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US20070081420A1 (en) 2007-04-12
WO2005049186A2 (en) 2005-06-02
ES2295499T3 (en) 2008-04-16
DK1533021T3 (en) 2008-05-05
WO2005049186A3 (en) 2005-07-14
DE50308859D1 (en) 2008-01-31
CA2546177A1 (en) 2005-06-02
NO20062743L (en) 2006-06-13
EP1533021A1 (en) 2005-05-25
ATE381381T1 (en) 2008-01-15

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