EP3386617B1 - Mixing insert, static mixer and productionmethod - Google Patents

Mixing insert, static mixer and productionmethod Download PDF

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Publication number
EP3386617B1
EP3386617B1 EP16822912.8A EP16822912A EP3386617B1 EP 3386617 B1 EP3386617 B1 EP 3386617B1 EP 16822912 A EP16822912 A EP 16822912A EP 3386617 B1 EP3386617 B1 EP 3386617B1
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EP
European Patent Office
Prior art keywords
mixer
longitudinal axis
mixing
insert
parts
Prior art date
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EP16822912.8A
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German (de)
French (fr)
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EP3386617A1 (en
Inventor
Bernhard Hug
Matthias Eppler
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.)
Stamixco Gpx H GmbH
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Stamixco AG
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Publication date
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Priority to PL16822912T priority Critical patent/PL3386617T3/en
Publication of EP3386617A1 publication Critical patent/EP3386617A1/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
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
    • B01F25/43161—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod composed of consecutive sections of flat pieces of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/56—General build-up of the mixers
    • B01F35/561—General build-up of the mixers the mixer being built-up from a plurality of modules or stacked plates comprising complete or partial elements of the mixer

Definitions

  • the invention relates to a mixer insert for a static mixer according to the preamble of claim 1, comprising a plurality of mixing elements arranged one behind the other, preferably directly adjacent to one another, along a longitudinal axis, in particular the longitudinal central axis, each comprising a plurality of crossing webs, at least two along the longitudinal axis of consecutive mixing elements, in particular all mixing elements alternating, are rotated with respect to the longitudinal axis by an angle of rotation, preferably 90 ° to each other.
  • the main directions of the webs of at least two adjacent mixing elements point to one another at an angle of rotation, preferably of 90 °.
  • a rotation of at least two adjacent mixing elements by, for example, 90 ° also means that the crossing axes of the mixing elements, which extend perpendicular to the longitudinal axis and at which the webs cross, are oriented parallel to one another rather than parallel.
  • the mixer insert is composed of several, in particular exclusively two, or alternative more than two separate mixer inserts, each extending along the longitudinal axis, which are adjacent perpendicular to the longitudinal axis (along an axis perpendicular to a longitudinal central axis of the mixer insert and / or along an axis not intersecting a longitudinal central axis of the mixer insert and perpendicular to the longitudinal axis of the mixer insert) are arranged, each partial mixer insert a plurality of one behind the other along the longitudinal axis and integrally connected along the longitudinal axis together (ie formed in one piece and directly axi al adjoining) partial mixing elements, and that the partial mixing elements of the partial mixer inserts which are arranged next to one another perpendicular to the longitudinal axis
  • these partial mixing elements of a respective partial mixer insert which are rotated relative to one another, are preferably those partial mixing elements of a, in particular each, partial mixer insert which are part of the mixing elements which are rotated relative to one another by the angle of rotation.
  • two of the partial mixing elements arranged next to one another along the longitudinal axis directly adjoin one another, in particular in such a way that webs of these axially successive partial mixing elements touch or merge.
  • the invention further relates to a static mixer with a (multi-part) mixer insert according to claim 16 and a method for producing or assembling a mixer insert according to claim 17, wherein at least two, preferably exclusively two or more than two, along a longitudinal axis, in particular the longitudinal central axis of the mixer insert to be assembled, extending, in particular injection molded, partial mixer inserts, each comprising a plurality of partial mixing elements arranged one behind the other along the longitudinal axis and integrally connected to one another, the partial mixer inserts in at least one mounting direction extending perpendicular to the longitudinal axis (along a cutting direction or alternatively not cutting the longitudinal central axis of the mixer insert Assembly axis) are joined together in such a way that the partial mixing elements of the partial mixer inserts, which are arranged next to one another perpendicular to the longitudinal axis, form one of the mixes Add replacement kits, of which at least two mixing elements arranged alongside one another along the longitudinal axis are arranged rotated by 90 ° relative to one another
  • CH 642 564 A5 describes a static mixer which has a generic mixer insert which is arranged within a tubular container and has a plurality of mixing elements which are arranged one behind the other along a longitudinal axis of the mixer insert and each comprise a plurality of crossing webs.
  • the mixing elements are alternately arranged rotated relative to one another by 90 ° with respect to the longitudinal axis.
  • Each mixing element of the mixer insert has two groups of webs, the webs within each group being aligned in parallel and the webs of one group intersecting with the webs of the other group, with the respective intersection points extending perpendicular to the longitudinal extension of the mixer insert Crossing axes of adjacent mixing elements are perpendicular to each other.
  • the known mixer insert is only complex and therefore expensive to manufacture.
  • filling the tubular housing with individual mixing elements to form the mixer insert is time-consuming, and it is difficult to ensure that the respectively adjacent mixing elements are arranged rotated by 90 °.
  • the assembly of the known mixer insert also presents problems if the mixing elements have a small diameter, since the degree of difficulty and the time required for assembly increases as the mixing element diameter decreases.
  • the individual mixing element disks have a circumferential reinforcement ring which is no longer available as a mixing space and which has the further disadvantage that fluids to be mixed penetrate outward in the radial direction between two such reinforcement rings and then at a distance from the webs in the axial direction can flow, namely axially through a gap radially between the outer circumference of the reinforcing rings and the inner circumference of the tube receiving the mixer insert. This is disadvantageous for the mixing result.
  • a mixer insert which is composed of partial mixer inserts, the partial mixer inserts each having a plurality of rectified, axially spaced partial mixer elements.
  • a static mixer which is composed of two one-piece part mixer inserts.
  • the partial mixer inserts consist of partial mixing elements arranged along a longitudinal axis, two adjacent ones of the partial mixing elements being arranged rotated by 90 °.
  • the partial mixing elements are diamond-shaped hollow bodies with a cross-section with flat outer walls, in which through-flow openings are provided. In each case two adjacent partial mixing elements touch or merge into one another via transverse edges or crossbars of the partial mixing elements which extend perpendicular to the longitudinal axis.
  • the flow resistance for components to be mixed is comparatively high - the mixing effect and efficiency also seem to be in need of improvement.
  • the invention is therefore based on the object of providing a simple, in particular in the plastic injection molding process, to specify producible mixer insert for a static mixer, which is characterized by simple manufacture and simple and quick assembly and manufacture.
  • the mixer insert according to the invention should preferably be able to dispense with the reinforcement rings previously required for pressure stability of reinforcement rings which can be produced in the plastic injection molding process.
  • the mixing insert should also preferably be characterized by a low flow resistance and a high mixing efficiency.
  • the object is to specify a static mixer containing a mixer insert according to the invention and a method for producing or assembling a mixer insert according to the invention.
  • features disclosed according to the device are also to be considered disclosed and claimable according to the method his.
  • features disclosed in accordance with the method are also to be considered as disclosed in accordance with the device and can be claimed.
  • the invention is based on the idea of designing the mixer insert in several parts to enable demoldability, in particular in the injection molding process, and to ensure simple, fast and precise assembly, that is to say in the form of a plurality of partial mixer inserts which are each produced in one piece, in particular in the plastic injection molding process, where
  • Each sub-mixer insert is characterized by a plurality of sub-mixer elements arranged one behind the other along the longitudinal axis (and preferably directly adjacent to one another), whereby two sub-mixer elements arranged alongside one another along the longitudinal axis are integrally connected to one another or formed in one piece, whereby the partial mixer elements are arranged side by side and perpendicular to the longitudinal axis of the adjacent sub-mixer inserts are or will be adjacent perpendicular to the longitudinal axis and each of the sub-mixer elements adjacent to the longitudinal axis Add the partial mixer inserts to one of the mixing elements.
  • partial mixer inserts are put together to form a mixer insert, specifically perpendicular to the longitudinal axis of the mixer insert, in such a way that partial mixer elements of the partial mixer inserts are or are adjacent perpendicular to the longitudinal axis of the mixer insert, and the partial mixer elements adjacent perpendicular to the longitudinal axis complement each other to form one of the mixing elements of the mixer insert , wherein at least two of the resulting mixing elements of the mixer insert thus assembled are arranged rotated with respect to the longitudinal axis by an angle of rotation, in particular of 90 ° to one another.
  • the angle of rotation is 90 °
  • the crossing axes of the webs of these adjacent or rotated mixing elements not only run perpendicular to the longitudinal axis but also are also oriented at right angles or perpendicular to each other.
  • the main course directions of the webs of the adjacent mixing elements also enclose an angle of 90 °, the webs of one of the mixing elements preferably running along a main course direction (including an angle to this main course direction), which runs with the longitudinal axis of the mixer insert coincides and the webs of the further (rotated) mixing element extend along a main direction (including an angle to this), which is oriented perpendicular to the longitudinal axis.
  • twist angles deviating therefrom in particular between 1 ° and 359 °, preferably between 1 ° and 89 °, can also be achieved.
  • the part-mixing elements have at least one of the part-mixing elements, in particular all part-mixing elements, preferably all part-mixing elements, crosses from the outset, the crosspieces complementing part-mixing elements adjacent to the longitudinal axis to the overall web structure of a respective mixing element of the mixer insert. It is particularly expedient if the web sections and / or the webs of part-mixing elements arranged axially along the longitudinal axis adjoin at least one of the part-mixer inserts directly and are integrally formed or connected to one another at the contact point.
  • the webs or web sections of a respective partial mixing element adjoin a web section or web of the partial mixing element arranged alongside the longitudinal axis, but that the web sections or webs partially, in particular to the radial half, and / or or have free ends up to the radial center of the mixer insert in the direction of the longitudinal axis, to which in turn webs and / or web sections of another Adjacent partial mixer insert or a partial mixing element of a partial mixer insert adjacent to the longitudinal axis in the assembled state.
  • the intersecting webs of the partial mixing elements and the mixing elements extend with respect to their longitudinal extent along the longitudinal central axis, but are arranged at an angle to this.
  • the mixer insert according to the invention can be produced inexpensively and simply, preferably by manufacturing the partial mixer inserts in the plastic injection molding process.
  • assembly is also very simple, since the partial mixer inserts only have to be positioned next to one another perpendicularly to the longitudinal axis of the mixer insert to be formed, so that the partial mixing elements arranged next to one another perpendicular to the longitudinal axis complement each other to form a mixing element of the mixer insert.
  • the mixer insert according to the invention is particularly suitable as a disposable mixer insert for a static disposable mixer which can be disposed of after a short use, in particular since a hardening chemical reaction takes place inside, for example as is known from two-component adhesives.
  • the mixer insert according to the invention or such a comprehensive static mixer is suitable for all mixing applications, in particular for the aforementioned reactive two-component systems, such as adhesives or sealing compounds.
  • Explosives, etc. can also be mixed with such a disposable mixer.
  • the mixer insert according to the invention is also suitable for mixing substances of different physical states or the same physical states, such as liquid / liquid, gaseous / liquid, solid / liquid and solid / gas.
  • the fluids or solids to be mixed can also have different temperatures, pressures or other physical or have chemical properties.
  • the Xgrid mixing element geometry known per se is particularly suitable, as is the case, for example, in CH 642 564 A5 described and in there Fig. 1 is shown.
  • the basic structure of such preferred mixing element geometries is also shown in FIG DE 23 28 795 or DE 25 22 106 described.
  • the mixer insert according to the invention is particularly preferably suitable for production using the plastic injection molding process, in particular based on thermoplastic plastics.
  • the manufacturability of the mixer insert according to the invention is expressly not limited to this. In principle, formation from plastic is preferred, but production from other materials, in particular metal, is also possible.
  • 3D printing or a precision casting process (wax melting process) can be used, and production using the die casting process is also possible.
  • the partial mixing elements of adjacent partial mixer inserts comprise partial webs or webs which, in the assembled state, together with the partial webs and / or webs of the partial mixing elements adjacent perpendicular to the longitudinal axis, which
  • the partial mixing elements of adjacent partial mixer inserts comprise partial webs or webs which, in the assembled state, together with the partial webs and / or webs of the partial mixing elements adjacent perpendicular to the longitudinal axis, which
  • of 90 ° mutually offset web structures form adjacent mixing elements, whereby, as mentioned at the outset, by a rotation of, for example, 90 °, the crossing axes that pass through the points of contact or crossing points of crossing webs of a web structure or a mixing element run at 90 ° to one another are twisted, as are the main directions of the webs of adjacent mixing elements.
  • At least one of the partial mixer inserts, preferably all of the partial mixer inserts, adjoining one another along the longitudinal axis of the partial mixing elements merge integrally into one another at free ends of the respective crossing webs.
  • the part-mixing elements which are formed in one piece with one another and at least one of the part-mixer inserts do not differ from one another as in FIG WO 2014/142869 A1 Described embodiment to cross bar extending perpendicular to the longitudinal extension touch or merge into one another, but that directly free ends of the crossing webs are integrally connected to one another along the longitudinal axis. This leads to an increased mixing efficiency and a lower flow resistance.
  • part of the webs of the partial mixing elements of one, in particular both, of the partial mixer inserts and part of the webs of the partial mixing elements of the other of the partial mixer inserts have free ends in the direction of the longitudinal axis, the partial mixing elements adjoining one another along the longitudinal axis of partial mixer inserts adjacent to the longitudinal axis (L) in the assembled state, ie after pushing into each other perpendicular to the longitudinal axis, rest against each other with their respective free web ends.
  • An embodiment is particularly expedient in which the partial mixer inserts interlock in a form-fitting manner perpendicular to the longitudinal axis in such a way that the partial mixer inserts are secured against relative adjustment (in the assembled state) along the longitudinal axis.
  • the partial mixer inserts intermesh with their partial mixing elements perpendicular to the longitudinal axis and thus block one another with respect to a relative movement along the longitudinal axis.
  • Such an embodiment in particular, greatly simplifies assembly, since the partial mixer inserts are fixed with respect to their axis relative position and thus also the insertion into a tubular, preferably cylindrical container for producing the static mixer is facilitated or simplified. In particular, it is ensured that a precise relative positioning of the partial mixer inserts for producing the mixer insert is possible in a simple manner without complex aids.
  • the partial mixing elements of the partial mixer inserts have the same length, ie the same extent have along the longitudinal central axis, so that the distance between two partial mixing elements oriented in the same direction and spaced apart by means of a partial mixing element arranged twisted to this corresponds to the axial extent (lengthwise extension) of a partial mixing element of the neighboring partial mixer set which can be inserted at this distance, so that the distance between the equally oriented Partial mixing elements during or for insertion do not have to be expanded by bending the receiving partial mixer set, as is the case, for example, in FIG WO 2014/142869 A1 described solution is the case.
  • the partial mixing elements of one of the partial mixer inserts preferably do not engage axially in adjacent partial mixing elements of the other partial mixer insert along the longitudinal axis.
  • the partial mixing elements of the partial mixer inserts in particular all partial mixing elements, have at least web sections (partial webs), the web sections of partial mixing elements adjacent to the longitudinal axis being supplemented or coordinated with one another in such a way that their web sections complement the crossing webs of the mixing elements.
  • the partial mixer inserts required to form a mixer insert are of identical design.
  • the multi-part mixer insert can be manufactured with only a single injection molding tool by producing several, in particular exclusively two or more than two, identical mixer inserts.
  • the partial mixing elements adjacent to the longitudinal axis perpendicular to the longitudinal axis of the partial mixer inserts form or supplement one of the mixing elements on one, preferably the longitudinal axis receiving, parting plane or contact plane abut each other, and that the parting or contact planes of (at least) two mixing elements arranged alongside one another along the longitudinal axis are rotated relative to one another by the angle of rotation, preferably of 90 ° with respect to the longitudinal axis.
  • the separating or contact planes of two adjacent mixing elements on which the partial mixing elements of these adjacent mixing elements are perpendicular to one another perpendicular to the longitudinal axis of the mixer insert are perpendicular to one another. It is useful, especially for one arrangement of the mixing elements rotated in an alternating manner when all the separating planes of the mixer insert, on which at least two partial mixing elements lie against one another to form one of the mixing elements, are arranged rotated relative to one another by the angle of rotation, in particular by 90 °.
  • the separating planes, on which two partial mixing elements abut one another, are preferably offset radially inwards with respect to the outer circumference or the lateral surface of the mixer insert, the separating planes at their ends spaced along the longitudinal axis preferably each on a radial plane formed or delimited by a partial mixing element butt, on these radial planes spaced axially apart from the parting plane, a partial mixing element of the neighboring partial mixer insert, which is adjacent to the longitudinal axis, bears.
  • each radial plane being formed or delimited by an end face of a partial mixing element of the partial mixer insert oriented in the direction of the longitudinal axis.
  • a partial mixing element of a partial mixer insert which is adjacent to the longitudinal axis perpendicular to the longitudinal axis can then be supported or rest there on these radial planes, preferably again in each case with a radial plane, these radial planes being formed or delimited by the end faces of this adjacent partial mixing element which face away from one another.
  • At least one of the partial mixer inserts preferably all partial mixer inserts (in each case), has or have a partial mixing element pair, preferably a plurality of partial mixing element pairs, each comprising a first and a second partial mixing element (the totality of the partial mixing elements), which are 90 in relation to the longitudinal axis ° rotated relative to each other, and that the first partial mixing element has a plurality of webs arranged one behind the other along a first transverse axis extending perpendicularly to the longitudinal axis, adjacent webs crossing each other along the first transverse axis (i.e.
  • the second partial mixing element has a plurality of webs arranged one behind the other along a second transverse axis extending perpendicular to the longitudinal axis and perpendicular to the first transverse axis, with adjacent ones (i.e. side by side) in each case along the second transverse axis arranged) cross webs and delimit at least one second opening that is open in the direction of the second transverse axis or that can be seen or seen through in the viewing direction of the second transverse axis.
  • the webs of the first partial mixing element and the webs of the second partial mixing element are at most at two parallel connecting lines extending along the first transverse axis and / or at most Two, preferably exactly two, parallel connecting lines extending along the second transverse axis adjoin one another in order to avoid undercuts which are difficult to produce.
  • the first partial mixing element does not have any pairs of crossing webs adjacent to one another along the second transverse axis, but rather such pairs are arranged next to one another only in the direction of the first transverse axis, and / or that the second partial element does not have any adjacent ones along the first transverse axis Has pairs of intersecting webs, but such are arranged only along the second transverse axis.
  • the mixing elements of the mixer insert have an Xgrid mixing element geometry, i.e. each comprise two groups of webs and the webs arranged within a group are aligned in parallel and the webs of one of the groups intersect with the webs of the other group.
  • the mixing elements and in particular the entire mixing insert have a cross-sectional circumferential contour which has a circular shape, an oval shape, a polygonal shape, a rectangular shape or a square shape, preferably the inner contour of the mixer insert receiving such , preferably tubular container is adapted to this circumferential contour in such a way that the mixer insert essentially completely fills the inner circumference of the container.
  • the mixer insert preferably has an overall cylindrical shape, with a circular, oval, polygonal, rectangular or square base and / or cross-sectional area.
  • the invention also leads to a static mixer, comprising a, in particular tubular, container, in which a mixer insert according to the invention is arranged, in particular pushed in, wherein in the context of the method according to the invention, the mixer insert is preferably vertical first by joining several partial mixer inserts assembled or assembled to the longitudinal axis and then arranged in the container.
  • a mixer insert 1 according to the invention for producing a static mixer is shown.
  • the mixer insert 1 is made of plastic, specifically using the plastic injection molding process.
  • the mixer insert 1 is constructed in several parts and, in the exemplary embodiment shown, comprises two identical partial mixer inserts 2, as seen in perspective in FIGS Fig. 3 . 4 and 5 are shown.
  • the (assembled) mixer insert 1 merely has to be inserted into a preferably tubular container along its longitudinal extent.
  • the mixer insert 1 has a cross-sectionally circular circumferential contour and is contoured in a circular cylindrical manner overall.
  • the mixer insert 1 comprises a plurality of mixing elements 3a, 3b, 3c, 3d arranged one behind the other along a longitudinal axis L (here the longitudinal central axis).
  • a longitudinal axis L here the longitudinal central axis.
  • Each mixing element 3a, 3b, 3c, 3d comprises two groups 6, 7 of webs, webs 8 of one group 6 (within group 6) being oriented parallel to one another, as well as webs 9 of the other group 7 (within group 7) , wherein the webs 8, 9 of the two groups 6, 7 intersect, specifically on the aforementioned intersection axes 4a, 4b, 5a, 5b, 5c, 5d, which extend perpendicular to the longitudinal axis L.
  • the webs 8, 9 of a part of the mixing elements 3b, 3d, ... extend essentially (obliquely) in the direction of the longitudinal axis L and webs 10, 11 (cf. Fig.
  • the webs 8, 9 extend with respect to their longitudinal extent, ie from their respective first axial end to their second axial end along a main direction of travel H 1 , to which they unite Include angles from here, for example 45 °.
  • the main running direction H 1 runs parallel to the longitudinal axis L.
  • the webs 10, 11 of the adjacent mixing element extend with respect to their respective longitudinal extension along a second main running direction H 2 , including an angle to this, here by way of example 45 °, the second main running direction H 2 runs perpendicular to the first main course direction H 1 , as well as perpendicular to the longitudinal axis L and parallel to a transverse axis Q 1 to be explained later.
  • each mixing element 3a, 3b, 3c, 3d comprises a total of six webs which follow one another perpendicular to the longitudinal axis L, this number being able to vary - there are at least two adjacent webs, three, four, five, six or even more than six webs can be realized.
  • Fig. 1a it can also be seen that the crossing webs 8, 9 or 10, 11 delimit openings 12, 13, the openings 12, 13 of mixing elements rotated by 90 ° with respect to their respective ones longitudinal extension oriented perpendicular to the longitudinal axis L has an angle of 90 ° to one another.
  • mixer insert 1 composed of a total of two mixer inserts 2, as in the Fig. 3 and 4 are shown.
  • Alternative embodiments with more than two partial mixer inserts can also be implemented.
  • the partial mixer inserts 2 and 2a, 2b (cf. Fig. 2 and Fig. 5 ) identical to form the mixer insert 1.
  • a partial mixer insert 2 comprises a plurality of partial mixing elements 14a, 14b, 14c, 14d arranged one behind the other along the longitudinal axis L.
  • Each partial mixing element 14a, 14b, 14c, 14d is in the assembled mixer insert 1, as is particularly the case with reference to FIG Fig. 5 it becomes clear that a partial mixing element 15a, 15b, 15c, 15d, which is mirror-symmetrical here to a respective parting plane, is assigned to another partial mixer insert 2, the partial mixing elements 14a, 15a; 14b, 15b; 14c, 15c; 14d, 15d; ... add or merge to a mixing element 3a, 3b, 3c, 3d.
  • two partial mixer inserts 2a, 2b which are identical here by way of example, are moved perpendicular to the longitudinal axis L of the finished mixer insert 1 in a relative movement direction M (assembly direction), so that in the present case due to the special arrangement of the partial mixing elements 14a to 14d and 15a to 15d these mesh with one another in a tooth-like manner and thus form a positive connection between the partial mixer inserts 2a, 2b in the assembled state of the mixer insert 1, which form a relative movement the partial mixer inserts 2a, 2b are reliably prevented along the longitudinal axis L.
  • a relative movement direction M assembly direction
  • a possible construction of a preferred embodiment variant of a partial mixer insert 2 is shown in detail.
  • this comprises a plurality of pairs 16 of partial mixing elements 14a, 14b which are adjacent to one another and are formed in one piece in the direction of the longitudinal axis L and are arranged rotated by 90 ° with respect to the longitudinal axis L relative to one another.
  • a first partial mixing element 14a of the pair 16 comprises a plurality of webs 10, 11 arranged one behind the other along a first transverse axis Q 1 extending perpendicularly to the longitudinal axis L, the webs 10, 11, as already explained with reference to the mixer insert 1, also being arranged here in two groups, wherein the webs 10 of one of the groups (within the group) are aligned in parallel, just as the webs 11 of the other group and the webs 10, 11 of the different groups intersect, namely along intersection axes 4a, 4b which run parallel to the first Transverse axis Q 1 .
  • openings 13 delimited by the webs 10, 11 also run and can be seen through in the direction of the first transverse axis Q 1 .
  • the structure of the further partial mixing element 14b of the pair 16 is rotated exactly 90 ° to this.
  • a plurality of webs 8, 9 are arranged one behind the other along a second transverse axis Q 2 extending perpendicular to the longitudinal axis L and perpendicular to the first transverse axis Q 1 , the webs 8, 9 being divided into two groups of webs 8, 9, the webs 8 one of the groups run parallel to one another and the webs 9 of the other groups 7 run parallel to one another, the webs 8, 9 of the groups 6, 7 crossing each other, specifically along intersection axes 5a, 5b, which also run parallel to the second transverse axis Q 2 like the longitudinal extensions of openings 12, which are delimited by the webs 8, 9.
  • the first partial mixing element 15a of the pair 16 in the direction of the second transverse axis Q 2 has no adjacent pairs of intersecting webs, just as little as the second partial mixing element 14b in the direction of the first transverse axis Q 1 .
  • a parting plane T 1 is drawn in there, which in the assembled state receives the longitudinal axis L of the mixer insert 1.
  • the outermost or end-side partial mixing elements of the adjacent partial mixer inserts 2a, 2b meet at the bottom right in the drawing plane.
  • the partial mixing elements following along the longitudinal axis L meet at a separating plane T 2 arranged here at right angles to the separating plane T 1 , which is likewise penetrated by the longitudinal axis L.
  • Fig. 4 With regard to the position of the parting planes T 1 and T 2 is again on Fig. 4 directed. It can be seen that the first transverse axis Q 1 is perpendicular to the surface extension of the first parting plane T 1 . Analogously, the second transverse axis Q 2 is perpendicular to the surface extension of the second parting plane T 2 . Out Fig. 4 results further in that the first parting lines T 1 are boxed two between two mutually parallel and extending perpendicular to the first parting plane T 1 radial planes R 1, bounded by two opposing end faces part of the mixing elements. Likewise, the second parting planes T 2 are arranged axially between two radial planes R 1 delimited by two partial mixing elements. The radial planes R 1 are perpendicular to both the first and the second parting planes T 1 and T 2 with respect to their surface extent and are penetrated orthogonally by the longitudinal axis L.
  • FIG. 6 A section of a partial mixer insert 2 can be seen, comprising two partial mixing elements 14a, 14b, which are rotated by 90 ° with respect to one another and which are designed and arranged as described above. Also recognizable is an injection molding tool 18 having a plurality of molded parts for producing the partial mixer insert 2 in the plastic injection molding process.

Description

Die Erfindung betrifft einen Mischereinsatz für einen statischen Mischer gemäß dem Oberbegriff des Anspruchs 1, umfassend eine Mehrzahl entlang einer Längsachse, insbesondere der Längsmittelachse, hintereinander angeordneter, bevorzugt unmittelbar aneinander angrenzender, Mischelemente, jeweils umfassend eine Mehrzahl von sich kreuzenden Stegen, wobei mindestens zwei entlang der Längsachse aufeinanderfolgende der Mischelemente, insbesondere sämtliche Mischelemente alternierend, bezüglich der Längsachse um einen Verdrehwinkel, vorzugsweise von 90° zueinander gedreht angeordnet sind. Anders ausgedrückt weisen die Hauptverlaufsrichtungen der Stege von mindestens zwei benachbarten Mischelementen unter einem Verdrehwinkel, vorzugsweise von 90° zueinander. Eine Verdrehung von mindestens zwei benachbarten Mischelementen um beispielsweise 90° bedeutet auch, dass die sich senkrecht zur Längsachse erstreckenden Kreuzungsachsen der Mischelemente, an denen sich die Stege kreuzen nicht parallel sondern senkrecht zueinander orientiert sind, Der Mischereinsatz ist aus mehreren, insbesondere ausschließlich zwei oder alternativ mehr als zwei, separaten, sich jeweils entlang der Längsachse erstreckenden Teilmischereinsätzen zusammengesetzt, die senkrecht zur Längsachse (entlang einer eine Längsmittelachse des Mischereinsatzes senkrecht schneidenden Achse und/oder entlang einer eine Längsmittelachse des Mischereinsatzes nicht schneidenden, senkrecht zur Längsachse des Mischereinsatzes verlaufenden Achse) benachbart angeordnet sind, wobei jeder Teilmischereinsatz eine Mehrzahl entlang der Längsachse hintereinander angeordneter und entlang der Längsachse einstückig miteinander verbundener (d.h. an einem Stück ausgebildete und unmittelbar axial aneinander angrenzende) Teilmischelemente aufweist, und dass die jeweils senkrecht zur Längsachse nebeneinander angeordneten Teilmischelemente der Teilmischereinsätze eines der Mischelemente bilden und dass mindestens zwei der aneinander angrenzenden, bevorzugt einen Bestandteil der verdrehten Mischelemente bildenden, Teilmischelemente, insbesondere jedes Teilmischereinsatzes, um den Verdrehwinkel zueinander verdreht angeordnet sind. Bei diesen verdreht relativ zueinander angeordneten Teilmischelementen eines jeweiligen Teilmischereinsatzes handelt es sich, wie erwähnt, bevorzugt um diejenigen Teilmischelemente eines, insbesondere jedes, Teilmischereinsatzes, die Bestandteil sind der um den Verdrehwinkel zueinander verdrehten Mischelemente. Wie erläutert grenzen jeweils zwei entlang der Längsachse nebeneinander angeordnete der Teilmischelemente unmittelbar aneinander an, insbesondere derart, dass sich Stege dieser axial aufeinanderfolgenden Teilmischelemente berühren bzw. ineinander übergehen.The invention relates to a mixer insert for a static mixer according to the preamble of claim 1, comprising a plurality of mixing elements arranged one behind the other, preferably directly adjacent to one another, along a longitudinal axis, in particular the longitudinal central axis, each comprising a plurality of crossing webs, at least two along the longitudinal axis of consecutive mixing elements, in particular all mixing elements alternating, are rotated with respect to the longitudinal axis by an angle of rotation, preferably 90 ° to each other. In other words, the main directions of the webs of at least two adjacent mixing elements point to one another at an angle of rotation, preferably of 90 °. A rotation of at least two adjacent mixing elements by, for example, 90 ° also means that the crossing axes of the mixing elements, which extend perpendicular to the longitudinal axis and at which the webs cross, are oriented parallel to one another rather than parallel. The mixer insert is composed of several, in particular exclusively two, or alternative more than two separate mixer inserts, each extending along the longitudinal axis, which are adjacent perpendicular to the longitudinal axis (along an axis perpendicular to a longitudinal central axis of the mixer insert and / or along an axis not intersecting a longitudinal central axis of the mixer insert and perpendicular to the longitudinal axis of the mixer insert) are arranged, each partial mixer insert a plurality of one behind the other along the longitudinal axis and integrally connected along the longitudinal axis together (ie formed in one piece and directly axi al adjoining) partial mixing elements, and that the partial mixing elements of the partial mixer inserts which are arranged next to one another perpendicular to the longitudinal axis form one of the mixing elements and that at least two of the adjacent elements Adjacent, preferably forming part of the twisted mixing elements, partial mixing elements, in particular each partial mixer insert, are arranged rotated relative to one another by the angle of rotation. As mentioned, these partial mixing elements of a respective partial mixer insert, which are rotated relative to one another, are preferably those partial mixing elements of a, in particular each, partial mixer insert which are part of the mixing elements which are rotated relative to one another by the angle of rotation. As explained, two of the partial mixing elements arranged next to one another along the longitudinal axis directly adjoin one another, in particular in such a way that webs of these axially successive partial mixing elements touch or merge.

Ferner betrifft die Erfindung einen statischen Mischer mit einem (mehrteiligen) Mischereinsatz gemäß Anspruch 16 sowie ein Verfahren zum Herstellen bzw. Montieren eines Mischereinsatzes gemäß Anspruch 17, wobei mindestens zwei, vorzugsweise ausschließlich zwei oder mehr als zwei sich entlang einer Längsachse, insbesondere der Längsmittelachse des zu montierenden Mischereinsatzes, erstreckender, insbesondere spritzgegossener, Teilmischereinsätze, jeweils aufweisend eine Mehrzahl entlang der Längsachse hintereinander angeordnete und einstückig miteinander verbundene Teilmischelemente, wobei die Teilmischereinsätze in mindestens einer sich senkrecht zur Längsachse erstreckenden Montagerichtung (entlang einer die Längsmittelachse des Mischereinsatzes schneidenden oder alternativ nicht schneidenden Montageachse) derart zusammengefügt werden, dass die jeweils senkrecht zur Längsachse nebeneinander angeordneten Teilmischelemente der Teilmischereinsätze sich zu einem der Mischereinsätze ergänzen, von denen zumindest zwei entlang der Längsachse nebeneinander angeordnete Mischelemente um 90° relativ zueinander gedreht angeordnet sind.The invention further relates to a static mixer with a (multi-part) mixer insert according to claim 16 and a method for producing or assembling a mixer insert according to claim 17, wherein at least two, preferably exclusively two or more than two, along a longitudinal axis, in particular the longitudinal central axis of the mixer insert to be assembled, extending, in particular injection molded, partial mixer inserts, each comprising a plurality of partial mixing elements arranged one behind the other along the longitudinal axis and integrally connected to one another, the partial mixer inserts in at least one mounting direction extending perpendicular to the longitudinal axis (along a cutting direction or alternatively not cutting the longitudinal central axis of the mixer insert Assembly axis) are joined together in such a way that the partial mixing elements of the partial mixer inserts, which are arranged next to one another perpendicular to the longitudinal axis, form one of the mixes Add replacement kits, of which at least two mixing elements arranged alongside one another along the longitudinal axis are arranged rotated by 90 ° relative to one another.

In der CH 642 564 A5 ist ein statischer Mischer beschrieben, der einen gattungsgemäßen Mischereinsatz aufweist, welcher innerhalb eines rohrförmigen Behälters angeordnet ist und mehrere entlang einer Längsachse des Mischereinsatzes hintereinander angeordnete Mischelemente aufweist, die jeweils eine Mehrzahl von sich kreuzenden Stegen umfassen. Bei dem bekannten Mischereinsatz sind die Mischelemente alternierend um 90° bezüglich der Längsachse relativ zueinander gedreht angeordnet. Jedes Mischelement des Mischereinsatzes weist zwei Gruppen von Stegen auf, wobei die Stege innerhalb einer jeden Gruppe parallel ausgerichtet sind und sich die Stege der einen Gruppe mit den Stegen der anderen Gruppe kreuzen, wobei die sich senkrecht zur Längserstreckung des Mischereinsatzes erstreckenden, die jeweiligen Kreuzungspunkte durchsetzenden Kreuzungsachsen benachbarter Mischelemente senkrecht zueinander verlaufen. Der bekannte Mischereinsatz ist nur aufwendig und damit kostenintensiv fertigbar. Zudem ist das Befüllen des rohrartigen Gehäuses mit einzelnen Mischelementen zur Bildung des Mischereinsatzes zeitaufwendig, und es ist schwer sicherzustellen, dass die jeweils benachbarten Mischelemente um jeweils 90° verdreht angeordnet sind. Probleme bereitet insbesondere auch der Zusammenbau des bekannten Mischereinsatzes, wenn die Mischelemente einen kleinen Durchmesser aufweisen, da der Schwierigkeitsgrad und der Zeitaufwand zum Zusammenbau mit abnehmendem Mischelementdurchmesser zunimmt.In the CH 642 564 A5 describes a static mixer which has a generic mixer insert which is arranged within a tubular container and has a plurality of mixing elements which are arranged one behind the other along a longitudinal axis of the mixer insert and each comprise a plurality of crossing webs. In the known mixer insert, the mixing elements are alternately arranged rotated relative to one another by 90 ° with respect to the longitudinal axis. Each mixing element of the mixer insert has two groups of webs, the webs within each group being aligned in parallel and the webs of one group intersecting with the webs of the other group, with the respective intersection points extending perpendicular to the longitudinal extension of the mixer insert Crossing axes of adjacent mixing elements are perpendicular to each other. The known mixer insert is only complex and therefore expensive to manufacture. In addition, filling the tubular housing with individual mixing elements to form the mixer insert is time-consuming, and it is difficult to ensure that the respectively adjacent mixing elements are arranged rotated by 90 °. In particular, the assembly of the known mixer insert also presents problems if the mixing elements have a small diameter, since the degree of difficulty and the time required for assembly increases as the mixing element diameter decreases.

Ein im Hinblick auf den Zusammenbau deutlich vereinfachter Mischereinsatz ist in der EP 2 001 580 B1 beschrieben, gemäß dem Oberbegriff des Anspruchs 1. Hier sind mehrere gelenkig miteinander verbundene Mischelementscheiben vorgesehen, die zum Zusammenbau des Mischereinsatzes so verschwenkt werden müssen, dass sie in axialer Richtung fluchten. Der bekannte Mischereinsatz ist im Spritzgussverfahren fertigbar, weist jedoch den Nachteil auf, dass eine exakte axiale Ausrichtung aufgrund der Vielzahl von Einzelkomponenten, die verschwenkbar miteinander verbunden sind schwierig ist, was dann wiederum Probleme bei der Montage mit sich bringt. Darüber hinaus weisen die einzelnen Mischelementscheiben einen nicht mehr als Mischraum zur Verfügung stehenden umfänglichen Verstärkungsring auf, der den weiteren Nachteil mit sich bringt, dass zu mischende Fluide in radialer Richtung zwischen zwei solcher Verstärkungsringe nach außen dringen und dann mit Abstand zu den Stegen in axialer Richtung strömen können, nämlich axial durch einen Spaltraum radial zwischen dem Außenumfang der Verstärkungsringe und dem Innenumfang des den Mischereinsatz aufnehmenden Rohres. Dies ist nachteilig für das Mischergebnis.In terms of assembly, the use of mixers is significantly simplified EP 2 001 580 B1 described, according to the preamble of claim 1. Here several articulated mixing element disks are provided, which must be pivoted so that they are aligned in the axial direction to assemble the mixer insert. The known mixer insert can be manufactured by injection molding, but has the disadvantage that an exact axial alignment is difficult due to the large number of individual components which are pivotally connected to one another, which is then in turn brings problems with assembly. In addition, the individual mixing element disks have a circumferential reinforcement ring which is no longer available as a mixing space and which has the further disadvantage that fluids to be mixed penetrate outward in the radial direction between two such reinforcement rings and then at a distance from the webs in the axial direction can flow, namely axially through a gap radially between the outer circumference of the reinforcing rings and the inner circumference of the tube receiving the mixer insert. This is disadvantageous for the mixing result.

Aus der EP 2 011 562 A1 ist ein Mischereinsatz bekannt, der aus Teilmischereinsätzen zusammengesetzt ist, wobei die Teilmischereinsätze jeweils mehrere gleichgerichtete, axial beabstandete Teilmischerelemente aufweisen.From the EP 2 011 562 A1 a mixer insert is known which is composed of partial mixer inserts, the partial mixer inserts each having a plurality of rectified, axially spaced partial mixer elements.

Aus der WO 2014/142869 A1 (bzw. DE 11 2013 006 808 T5 ) ist ein statischer Mischer bekannt, der aus zwei jeweils einteiligen Teilmischereinsätzen zusammengesetzt ist. Die Teilmischereinsätze bestehen aus entlang einer Längsachse angeordneten Teilmischelementen, wobei jeweils zwei benachbarte der Teilmischelementen um 90° verdreht angeordnet sind. Bei den Teilmischelementen handelt es sich um im Querschnitt rautenförmige Höhlkörper mit flächigen Außenwänden, in denen Durchströmöffnungen vorgesehen sind. Jeweils zwei benachbarte Teilmischelemente berühren sich bzw. gehen ineinander über entlang von sich senkrecht zur Längsachse erstreckenden Querkanten bzw. Querbalken der Teilmischelemente. Der Durchflusswiderstand für zu mischende Komponenten ist vergleichsweise hoch - auch scheint die Misc hwirkung bzw. -effizienz verbesserungsbedürftig.From the WO 2014/142869 A1 (respectively. DE 11 2013 006 808 T5 ) a static mixer is known which is composed of two one-piece part mixer inserts. The partial mixer inserts consist of partial mixing elements arranged along a longitudinal axis, two adjacent ones of the partial mixing elements being arranged rotated by 90 °. The partial mixing elements are diamond-shaped hollow bodies with a cross-section with flat outer walls, in which through-flow openings are provided. In each case two adjacent partial mixing elements touch or merge into one another via transverse edges or crossbars of the partial mixing elements which extend perpendicular to the longitudinal axis. The flow resistance for components to be mixed is comparatively high - the mixing effect and efficiency also seem to be in need of improvement.

Ausgehend von dem vorgenannten Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde, einen einfach, insbesondere im Kunststoffspritzgussverfahren, fertigbaren Mischereinsatz für einen statischen Mischer anzugeben, der sich durch eine einfache Fertigbarkeit und eine einfache und schnelle Montierbarkeit bzw. Herstellbarkeit auszeichnet. Bevorzugt soll der erfindungsgemäße Mischereinsatz auf die bisher für eine Druckstabilität notwendigen Verstärkungsringe von im Kunststoffspritzgussverfahren herstellbaren Mischereinsätzen notwendigen Verstärkungsringe verzichtet werden können. Auch soll sich der Mischeinsatz bevorzugt durch einen geringen Durchströmungswiderstand und eine hohe Mischeffizienz auszeichnen.Proceeding from the aforementioned prior art, the invention is therefore based on the object of providing a simple, in particular in the plastic injection molding process, to specify producible mixer insert for a static mixer, which is characterized by simple manufacture and simple and quick assembly and manufacture. The mixer insert according to the invention should preferably be able to dispense with the reinforcement rings previously required for pressure stability of reinforcement rings which can be produced in the plastic injection molding process. The mixing insert should also preferably be characterized by a low flow resistance and a high mixing efficiency.

Ferner besteht die Aufgabe darin, einen einen erfindungsgemäßen Mischereinsatz beinhaltenden statischen Mischer sowie ein Verfahren zum Herstellen bzw. Montieren eines erfindungsgemäßen Mischereinsatzes anzugeben.Furthermore, the object is to specify a static mixer containing a mixer insert according to the invention and a method for producing or assembling a mixer insert according to the invention.

Diese Aufgabe wird hinsichtlich des Mischereinsatzes mit den Merkmalen des Anspruchs 1 gelöst.
Hinsichtlich des statischen Mischers wird die Aufgabe mit den Merkmalen des Anspruchs 16 gelöst.
Hinsichtlich des Verfahrens wird die Aufgabe mit den Merkmalen des Anspruchs 17 gelöst.This object is achieved with respect to the mixer insert with the features of claim 1.
With regard to the static mixer, the object is achieved with the features of claim 16.
With regard to the method, the object is achieved with the features of claim 17.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous developments of the invention are specified in the subclaims.

In den Rahmen der Erfindung fallen sämtliche Kombinationen aus zumindest zwei von in der Beschreibung, den Ansprüchen und/oder den Figuren offenbarten Merkmalen.All combinations of at least two of the features disclosed in the description, the claims and / or the figures fall within the scope of the invention.

Zur Vermeidung von Wiederholungen sollen vorrichtungsgemäß offenbarte Merkmale auch als verfahrensgemäß offenbart gelten und beanspruchbar sein. Ebenso sollen verfahrensgemäß offenbarte Merkmale auch als vorrichtungsgemäß offenbart gelten und beanspruchbar sein.In order to avoid repetitions, features disclosed according to the device are also to be considered disclosed and claimable according to the method his. Likewise, features disclosed in accordance with the method are also to be considered as disclosed in accordance with the device and can be claimed.

Der Erfindung liegt der Gedanke zugrunde, den Mischereinsatz zum Ermöglichen einer Entformbarkeit, insbesondere im Spritzgussverfahren, und zur Gewährleistung einer einfachen, schnellen und präzisen Montage mehrteilig auszubilden, d.h. in Form von mehreren Teilmischereinsätzen, die jeweils einstückig, insbesondere im Kunststoffspritzgussverfahren, hergestellt sind, wobei jeder Teilmischereinsatz sich auszeichnet durch eine Mehrzahl entlang der Längsachse hintereinander angeordneter (und vorzugsweise unmittelbar aneinander angrenzender) Teilmischelemente, wobei jeweils zwei entlang der Längsachse nebeneinander angeordnete Teilmischelemente einstückig miteinander verbunden bzw. einstückig ausgebildet sind, wobei durch das Nebeneinanderanordnen der Teilmischereinsätze senkrecht zur Längsachse auch Teilmischelemente der benachbarten Teilmischereinsätze senkrecht zur Längsachse benachbart sind bzw. werden und sich jeweils die senkrecht zur Längsachse benachbarten Teilmischelemente der Teilmischereinsätze zu einem der Mischelemente ergänzen. Anders ausgedrückt werden mehrere Teilmischereinsätze zu einem Mischereinsatz zusammengesetzt, und zwar senkrecht zur Längsachse des Mischereinsatzes, derart, dass Teilmischelemente der Teilmischereinsätze senkrecht zur Längsachse des Mischereinsatzes benachbart werden bzw. sind und sich jeweils die senkrecht zur Längsachse benachbarten Teilmischelemente zu einem der Mischelemente des Mischereinsatzes ergänzen, wobei mindestens zwei der resultierenden Mischelemente des so zusammengesetzten Mischereinsatzes bezüglich der Längsachse um einen Verdrehwinkel, insbesondere von 90° zueinander gedreht angeordnet sind. Für den bevorzugten Fall, dass der Verdrehwinkel 90° beträgt, bedeutet dies, dass die Kreuzungsachsen der Stege dieser benachbarten bzw. gedreht zueinander angeordneten Mischelemente nicht nur senkrecht zur Längsachse verlaufen sondern auch rechtwinklig bzw. senkrecht zueinander orientiert sind. Bei um 90° zueinander gedrehten Mischelementen schließen auch die Hauptverlaufsrichtungen der Stege der benachbarten Mischelemente einen Winkel von 90° ein, wobei bevorzugt die Stege eines der Mischelemente entlang einer Hauptverlaufsrichtung (unter Einschluss eines Winkels zu dieser Hauptverlaufsrichtung) verlaufen, die mit der Längsachse des Mischereinsatzes zusammenfällt und die Stege des weiteren (gedrehten) Mischelementes sich entlang einer Hauptverlaufsrichtung (unter Einschluss eines Winkels zu dieser) erstrecken, die senkrecht zur Längsachse orientiert ist. Neben der bevorzugten Ausführungsform mit einem Verdrehwinkel von 90° sind auch davon abweichende Verdrehwinkel, insbesondere zwischen 1° und 359°, bevorzugt zwischen 1° und 89°, realisierbar.The invention is based on the idea of designing the mixer insert in several parts to enable demoldability, in particular in the injection molding process, and to ensure simple, fast and precise assembly, that is to say in the form of a plurality of partial mixer inserts which are each produced in one piece, in particular in the plastic injection molding process, where Each sub-mixer insert is characterized by a plurality of sub-mixer elements arranged one behind the other along the longitudinal axis (and preferably directly adjacent to one another), whereby two sub-mixer elements arranged alongside one another along the longitudinal axis are integrally connected to one another or formed in one piece, whereby the partial mixer elements are arranged side by side and perpendicular to the longitudinal axis of the adjacent sub-mixer inserts are or will be adjacent perpendicular to the longitudinal axis and each of the sub-mixer elements adjacent to the longitudinal axis Add the partial mixer inserts to one of the mixing elements. In other words, several partial mixer inserts are put together to form a mixer insert, specifically perpendicular to the longitudinal axis of the mixer insert, in such a way that partial mixer elements of the partial mixer inserts are or are adjacent perpendicular to the longitudinal axis of the mixer insert, and the partial mixer elements adjacent perpendicular to the longitudinal axis complement each other to form one of the mixing elements of the mixer insert , wherein at least two of the resulting mixing elements of the mixer insert thus assembled are arranged rotated with respect to the longitudinal axis by an angle of rotation, in particular of 90 ° to one another. For the preferred case that the angle of rotation is 90 °, this means that the crossing axes of the webs of these adjacent or rotated mixing elements not only run perpendicular to the longitudinal axis but also are also oriented at right angles or perpendicular to each other. In the case of mixing elements rotated by 90 ° with respect to one another, the main course directions of the webs of the adjacent mixing elements also enclose an angle of 90 °, the webs of one of the mixing elements preferably running along a main course direction (including an angle to this main course direction), which runs with the longitudinal axis of the mixer insert coincides and the webs of the further (rotated) mixing element extend along a main direction (including an angle to this), which is oriented perpendicular to the longitudinal axis. In addition to the preferred embodiment with a twist angle of 90 °, twist angles deviating therefrom, in particular between 1 ° and 359 °, preferably between 1 ° and 89 °, can also be achieved.

Erfindungsgemäß ist nun vorhergesehen, dass die Teilmischelemente zumindest eines der Teilmischereinsätze, insbesondere sämtliche Teilmischelemente, bevorzugt sämtlicher Teilmischereinsätze bereits von vornherein sich kreuzende Stege aufweisen, wobei die sich kreuzenden Stege von senkrecht zur Längsachse benachbarten Teilmischelementen zur Gesamtstegstruktur eines jeweiligen Mischelementes des Mischereinsatzes ergänzen. Besonders zweckmäßig ist es, wenn die Stegabschnitte und/oder die Stege von axial entlang der Längsachse nebeneinander angeordneten Teilmischelementen zumindest eines der Teilmischereinsätze unmittelbar aneinander angrenzen und an der Kontaktstelle einteilig ausgebildet bzw. miteinander verbunden sind. Wie später noch erläutert werden wird ist es ganz besonders bevorzugt, wenn nicht sämtliche Stege oder Stegabschnitte eines jeweiligen Teilmischelementes an einen Stegabschnitt oder Steg des daneben entlang der Längsachse angeordneten Teilmischelementes angrenzen, sondern dass die Stegabschnitte oder Stege zum Teil, insbesondere zur radialen Hälfte und/oder bis zur radialen Mitte des Mischereinsatzes in Richtung der Längsachse freie Enden aufweisen, an die wiederum Stege und/oder Stegabschnitte eines anderen Teilmischereinsatzes bzw. eines Teilmischelementes eines senkrecht zur Längsachse benachbarten Teilmischereinsatzes im montierten Zustand angrenzen. Hierdurch wird die Fertigbarkeit insbesondere im Kunststoffspritzgussverfahren erheblich erleichtert. Die sich kreuzenden Stege der Teilmischelemente und der Mischelemente erstrecken sich bezüglich ihrer Längserstreckung entlang der Längsmittelachse, sind jedoch winklig zu dieser angeordnet.According to the invention, it is now provided that the part-mixing elements have at least one of the part-mixing elements, in particular all part-mixing elements, preferably all part-mixing elements, crosses from the outset, the crosspieces complementing part-mixing elements adjacent to the longitudinal axis to the overall web structure of a respective mixing element of the mixer insert. It is particularly expedient if the web sections and / or the webs of part-mixing elements arranged axially along the longitudinal axis adjoin at least one of the part-mixer inserts directly and are integrally formed or connected to one another at the contact point. As will be explained later, it is very particularly preferred if not all of the webs or web sections of a respective partial mixing element adjoin a web section or web of the partial mixing element arranged alongside the longitudinal axis, but that the web sections or webs partially, in particular to the radial half, and / or or have free ends up to the radial center of the mixer insert in the direction of the longitudinal axis, to which in turn webs and / or web sections of another Adjacent partial mixer insert or a partial mixing element of a partial mixer insert adjacent to the longitudinal axis in the assembled state. As a result, the manufacturability is made considerably easier, in particular in the plastic injection molding process. The intersecting webs of the partial mixing elements and the mixing elements extend with respect to their longitudinal extent along the longitudinal central axis, but are arranged at an angle to this.

Der erfindungsgemäße Mischereinsatz lässt sich, bevorzugt durch Fertigen der Teilmischereinsätze im Kunststoffspritzgussverfahren, kostengünstig und einfach herstellen. Insbesondere ist auch die Montage sehr einfach, da die Teilmischereinsätze lediglich senkrecht zur Längsachse des zu bildenden Mischereinsatzes nebeneinander positioniert werden müssen, so dass sich die jeweils senkrecht zur Längsachse nebeneinander angeordneten Teilmischelemente zu einem Mischelement des Mischereinsatzes ergänzen. Der erfindungsgemäße Mischereinsatz eignet sich insbesondere als Einwegmischereinsatz für einen statischen Einwegmischer, welcher nach kurzzeitigem Gebrauch entsorgt werden kann, insbesondere da im Inneren eine aushärtende chemische Reaktion stattfindet, beispielsweise wie dies von Zwei-Komponentenklebstoffen bekannt ist. Der erfindungsgemäße Mischereinsatz bzw. ein einen solchen umfassender statischer Mischer eignet sich für sämtliche Mischanwendungen, insbesondere für die vorerwähnten reaktiven Zwei-Komponentensysteme, wie Klebstoffe oder Dichtmassen.The mixer insert according to the invention can be produced inexpensively and simply, preferably by manufacturing the partial mixer inserts in the plastic injection molding process. In particular, assembly is also very simple, since the partial mixer inserts only have to be positioned next to one another perpendicularly to the longitudinal axis of the mixer insert to be formed, so that the partial mixing elements arranged next to one another perpendicular to the longitudinal axis complement each other to form a mixing element of the mixer insert. The mixer insert according to the invention is particularly suitable as a disposable mixer insert for a static disposable mixer which can be disposed of after a short use, in particular since a hardening chemical reaction takes place inside, for example as is known from two-component adhesives. The mixer insert according to the invention or such a comprehensive static mixer is suitable for all mixing applications, in particular for the aforementioned reactive two-component systems, such as adhesives or sealing compounds.

Auch können mit einem solchen Einwegmischer Sprengstoffe, etc. gemischt werden. Auch eignet sich der erfindungsgemäße Mischereinsatz zum Mischen von Substanzen unterschiedlicher Aggregatzustände oder gleicher Aggregatzustände, wie flüssig/flüssig, gasförmig/flüssig, Feststoff/flüssig sowie Feststoff/Gas. Auch können die zu mischenden Fluide bzw. Feststoffe unterschiedliche Temperaturen, Drücke oder andere physikalische oder chemische Eigenschaften aufweisen.Explosives, etc. can also be mixed with such a disposable mixer. The mixer insert according to the invention is also suitable for mixing substances of different physical states or the same physical states, such as liquid / liquid, gaseous / liquid, solid / liquid and solid / gas. The fluids or solids to be mixed can also have different temperatures, pressures or other physical or have chemical properties.

Als Mischgeometrie der Mischelemente eignet sich insbesondere die an sich bekannte Xgrid-Mischelementgeometrie, wie diese beispielsweise in der CH 642 564 A5 beschrieben und in der dortigen Fig. 1 gezeigt ist. Der grundsätzliche Aufbau solcher bevorzugter Mischelementgeometrien ist auch in der DE 23 28 795 oder DE 25 22 106 beschrieben.As a mixing geometry of the mixing elements, the Xgrid mixing element geometry known per se is particularly suitable, as is the case, for example, in CH 642 564 A5 described and in there Fig. 1 is shown. The basic structure of such preferred mixing element geometries is also shown in FIG DE 23 28 795 or DE 25 22 106 described.

Wie erwähnt eignet sich der erfindungsgemäße Mischereinsatz besonders bevorzugt für die Herstellung im Kunststoffspritzgussverfahren, insbesondere auf Basis von thermoplastischen Kunststoffen. Hierauf ist die Herstellbarkeit des erfindungsgemäßen Mischereinsatzes jedoch ausdrücklich nicht beschränkt. Grundsätzlich ist zwar eine Ausbildung aus Kunststoff bevorzugt, jedoch ist auch eine Herstellung aus anderen Materialien, insbesondere Metall möglich. Als alternative Herstellverfahren kommen beispielsweise das 3D-Drucken in Frage, oder ein Präzisionsgussverfahren (Wachsaufschmelzverfahren), wobei auch eine Herstellung im Druckgussverfahren möglich ist.As mentioned, the mixer insert according to the invention is particularly preferably suitable for production using the plastic injection molding process, in particular based on thermoplastic plastics. However, the manufacturability of the mixer insert according to the invention is expressly not limited to this. In principle, formation from plastic is preferred, but production from other materials, in particular metal, is also possible. As an alternative manufacturing process, for example, 3D printing or a precision casting process (wax melting process) can be used, and production using the die casting process is also possible.

Wie eingangs bereits erwähnt ist es bevorzugt, wenn nicht nur zwei oder einige von unmittelbar aufeinanderfolgenden Mischelementen bzw. Teilmischelementen bezüglich der Längsachse um den Verdrehwinkel, bevorzugt von 90° zueinander gedreht angeordnet sind (was grundsätzlich ebenfalls realisierbar ist), sondern bei der die Mischelemente und/oder die Teilmischelemente jedes Teilmischereinsatzes bezüglich ihrer Orientierung zur Längsachse alternierend um den Verdrehwinkel gedreht zueinander angeordnet sind, um somit ein optimales Mischergebnis zu erreichen. Im letztgenannten, bevorzugten Fall umfassen die Teilmischelemente benachbarter Teilmischereinsätze Teilstege oder Stege, die im montierten Zustand zusammen mit den Teilstegen und/oder Stegen der senkrecht zur Längsachse benachbarten Teilmischelemente die um den Verdrehwinkel, insbesondere von 90° zueinander versetzten Stegstrukturen benachbarter Mischelemente bilden, wobei, wie eingangs erwähnt, durch eine Verdrehung von beispielsweise 90° auch die Kreuzungsachsen, die durch die Berührungspunkte bzw. Kreuzungspunkte von sich kreuzenden Stegen einer Stegstruktur bzw. eines Mischelementes verlaufen um 90° zueinander verdreht sind, ebenso wie die Hauptverlaufsrichtungen der Stege benachbarter Mischelemente.As already mentioned at the beginning, it is preferred if not only two or some of the successive mixing elements or partial mixing elements are arranged rotated with respect to the longitudinal axis by the angle of rotation, preferably 90 ° to one another (which is also fundamentally feasible), but in which the mixing elements and / or the partial mixing elements of each partial mixer insert are arranged rotated relative to one another with respect to their orientation to the longitudinal axis in order to achieve an optimal mixing result. In the latter, preferred case, the partial mixing elements of adjacent partial mixer inserts comprise partial webs or webs which, in the assembled state, together with the partial webs and / or webs of the partial mixing elements adjacent perpendicular to the longitudinal axis, which In particular, of 90 ° mutually offset web structures form adjacent mixing elements, whereby, as mentioned at the outset, by a rotation of, for example, 90 °, the crossing axes that pass through the points of contact or crossing points of crossing webs of a web structure or a mixing element run at 90 ° to one another are twisted, as are the main directions of the webs of adjacent mixing elements.

Durch die einstückige (monolithische) Ausbildung und der unmittelbar entlang der Längsachse aneinander angrenzenden Ausbildung bzw. Anordnung der Teilmischelemente jedes Teilmischereinsatzes kann auf die in der EP 2 011 562 A1 gezeigten Längsstäbe verzichtet werden, was bevorzugt ist.Due to the one-piece (monolithic) design and the design or arrangement of the partial mixing elements of each partial mixer insert, which are directly adjacent to one another along the longitudinal axis, it is possible to refer to those in EP 2 011 562 A1 longitudinal rods shown are dispensed with, which is preferred.

In Weiterbildung der Erfindung ist mit Vorteil vorgesehen, dass entlang der Längsachse aneinander angrenzende der Teilmischelemente zumindest eines der Teilmischereinsätze, bevorzugt sämtlicher Teilmischereinsätze, an freien Enden der jeweiligen sich kreuzenden Stegen einstückig ineinander übergehen. Dies bedeutet, dass sich die einstückig miteinander ausgebildeten Teilmischelemente zumindest eines der Teilmischereinsätze sich nicht wie bei der in der WO 2014/142869 A1 beschriebenen Ausführungsform an sich senkrecht zur Längserstreckung erstreckendne Querbalken berühren bzw. ineinander übergehen, sondern dass direkt freie Enden der sich kreuzenden Stege entlang der Längsachse miteinander einteilig verbunden sind. Dies führt zu einer erhöhten Mischeffizienz und zu einen geringeren Durchströmungswiderstand.In a development of the invention, it is advantageously provided that at least one of the partial mixer inserts, preferably all of the partial mixer inserts, adjoining one another along the longitudinal axis of the partial mixing elements merge integrally into one another at free ends of the respective crossing webs. This means that the part-mixing elements which are formed in one piece with one another and at least one of the part-mixer inserts do not differ from one another as in FIG WO 2014/142869 A1 Described embodiment to cross bar extending perpendicular to the longitudinal extension touch or merge into one another, but that directly free ends of the crossing webs are integrally connected to one another along the longitudinal axis. This leads to an increased mixing efficiency and a lower flow resistance.

Besonders bevorzugt ist es, wenn die in eine gleiche Richtung entlang der Längsachse weisenden und an einen gemeinsamen, entlang der Längsachse benachbarten der Teilmischelemente angrenzenden freien Enden von parallelen Stegen und/oder Stegabschnitten der Teilmischelemente unter Einhaltung eines freien Abstandes (Freiraum) senkrecht zur Längsmittelachse beabstandet sind.It is particularly preferred if the free ends of parallel webs and / or web sections of the partial mixing elements which point in the same direction along the longitudinal axis and which adjoin a common free end of the partial mixing elements which are adjacent along the longitudinal axis are kept perpendicular to the longitudinal central axis while maintaining a free distance (free space).

In Weiterbildung der Erfindung ist mit Vorteil vorgesehen, dass ein Teil der Stege der Teilmischelemente eines der, insbesondere beiden, Teilmischereinsätze und ein Teil der Stege der Teilmischelemente des anderen der Teilmischereinsätze in Richtung der Längsachse freie Enden aufweist, wobei die entlang der Längsachse aneinander grenzenden Teilmischelemente von senkrecht zur Längsachse (L) benachbarten Teilmischereinsätzen im montierten Zustand, d.h. nach dem Ineinander Schieben senkrecht zur Längsachse, mit ihren jeweiligen freien Stegenden aneinander anliegen.In a further development of the invention, it is advantageously provided that part of the webs of the partial mixing elements of one, in particular both, of the partial mixer inserts and part of the webs of the partial mixing elements of the other of the partial mixer inserts have free ends in the direction of the longitudinal axis, the partial mixing elements adjoining one another along the longitudinal axis of partial mixer inserts adjacent to the longitudinal axis (L) in the assembled state, ie after pushing into each other perpendicular to the longitudinal axis, rest against each other with their respective free web ends.

Besonders zweckmäßig ist eine Ausführungsform, bei der die Teilmischereinsätze derart senkrecht zur Längsachse formschlüssig ineinandergreifen, dass die Teilmischereinsätze gegen eine Relativverstellung (im montieren Zustand) entlang der Längsachse gesichert sind. Anders ausgedrückt greifen die Teilmischereinsätze mit ihren Teilmischelementen senkrecht zur Längsachse verzahnungsartig ineinander und blockieren sich somit gegenseitig hinsichtlich einer Relativbewegung entlang der Längsachse. Insbesondere eine derartige Ausführungsform erleichtert die Montage immens, da die Teilmischereinsätze bezüglich ihrer Achsrelativposition fixiert sind und somit auch das Einschieben in einen, rohrförmigen, bevorzugt zylindrischen Behälter zur Herstellung des statischen Mischer erleichtert bzw. vereinfacht wird. Insbesondere ist sichergestellt, dass eine präzise Relativpositionierung der Teilmischereinsätze zur Herstellung des Mischereinsatzes auf einfache Weise ohne komplexe Hilfsmittel möglich ist.An embodiment is particularly expedient in which the partial mixer inserts interlock in a form-fitting manner perpendicular to the longitudinal axis in such a way that the partial mixer inserts are secured against relative adjustment (in the assembled state) along the longitudinal axis. In other words, the partial mixer inserts intermesh with their partial mixing elements perpendicular to the longitudinal axis and thus block one another with respect to a relative movement along the longitudinal axis. Such an embodiment, in particular, immensely simplifies assembly, since the partial mixer inserts are fixed with respect to their axis relative position and thus also the insertion into a tubular, preferably cylindrical container for producing the static mixer is facilitated or simplified. In particular, it is ensured that a precise relative positioning of the partial mixer inserts for producing the mixer insert is possible in a simple manner without complex aids.

Dabei ist es besonders bevorzugt wenn die Teilmischelemente der Teilmischereinsätze die gleiche Längenerstreckung, d.h. die gleiche Erstreckung entlang der Längsmittelachse aufweisen, so dass der Abstand zwischen jeweils zwei in die gleiche Richtung orienteierten und über einen verdreht hierzu angeordnetes Teilmischelement beabstandeten Teilmischelementen der Axialerstreckung (Längenerstreckung) eines in diesen Abstand einschiebbaren Teilmischelement des benachbarten Teilmischersatzes entspricht, so dass der Abstand zwischen den gleich orietentierten Teilmischelementen beim bzw. für das Einschieben nicht durch Biegen des aufnemenden Teilmischersatzes aufgeweitet werden muss, wie dies beispielsweise bei der in der WO 2014/142869 A1 beschriebenen Lösung der Fall ist. Anders ausgedrückt greifen die Teilmischelemente eines der Teilmischereinsätze bevorzugt nicht axial in entlang der Längsachse benachbarte Teilmischelemente des anders Teilmischereinsatzes ein.It is particularly preferred if the partial mixing elements of the partial mixer inserts have the same length, ie the same extent have along the longitudinal central axis, so that the distance between two partial mixing elements oriented in the same direction and spaced apart by means of a partial mixing element arranged twisted to this corresponds to the axial extent (lengthwise extension) of a partial mixing element of the neighboring partial mixer set which can be inserted at this distance, so that the distance between the equally oriented Partial mixing elements during or for insertion do not have to be expanded by bending the receiving partial mixer set, as is the case, for example, in FIG WO 2014/142869 A1 described solution is the case. In other words, the partial mixing elements of one of the partial mixer inserts preferably do not engage axially in adjacent partial mixing elements of the other partial mixer insert along the longitudinal axis.

Bevorzugt ist es, wenn die Teilmischelemente der Teilmischereinsätze, insbesondere sämtliche Teilmischelemente zumindest Stegabschnitte (Teilstege) aufweisen, wobei die Stegabschnitte von senkrecht zur Längsachse benachbarten Teilmischelementen so ergänzt bzw. aufeinander abgestimmt sind, dass sich deren Stegabschnitte zu den sich kreuzenden Stegen der Mischelemente ergänzen.It is preferred if the partial mixing elements of the partial mixer inserts, in particular all partial mixing elements, have at least web sections (partial webs), the web sections of partial mixing elements adjacent to the longitudinal axis being supplemented or coordinated with one another in such a way that their web sections complement the crossing webs of the mixing elements.

Hinsichtlich einer im Hinblick auf geringe Werkzeugkosten optimierten Variante eines Mischereinsatzes ist es besonders zweckmäßig, wenn die zur Bildung eines Mischereinsatzes notwendigen Teilmischereinsätze identisch ausgebildet sind. Hierdurch kann der mehrteilige Mischereinsatz mit nur einem einzigen Spritzgusswerkzeug durch Herstellen mehrerer, insbesondere ausschließlich zwei oder mehr als zwei identischer Teilmischereinsätze gefertigt werden.With regard to a variant of a mixer insert which is optimized with regard to low tool costs, it is particularly expedient if the partial mixer inserts required to form a mixer insert are of identical design. As a result, the multi-part mixer insert can be manufactured with only a single injection molding tool by producing several, in particular exclusively two or more than two, identical mixer inserts.

Im Hinblick auf eine einfache Montage und Herstellbarkeit des Mischereinsatzes bzw. der Teilmischereinsätze ist es bevorzugt, wenn die jeweils senkrecht zur Längsachse benachbarten Teilmischelemente der (senkrecht zur Längsachse benachbarten) Teilmischereinsätze zur jeweiligen Bildung bzw. Ergänzung zu einem der Mischelemente an einer, vorzugsweise die Längsachse aufnehmenden, Trennebene bzw. Kontaktebene aneinander anliegen, und dass die Trenn- bzw. Kontaktebenen von (mindestens) zwei entlang der Längsachse nebeneinander angeordneten Mischelementen um den Verdrehwinkel, vorzugsweise von 90° bezogen auf die Längsachse zueinander gedreht sind. Anders ausgedrückt stehen die Trenn- bzw. Kontaktebenen von zwei benachbarten Mischelementen, an denen die Teilmischelemente dieser benachbarten Mischelemente senkrecht zur Längsachse des Mischereinsatzes aneinander anliegen senkrecht aufeinander. Zweckmäßig ist es dabei, insbesondere bei einer durchgehend alternierend gedrehten Anordnung der Mischelemente, wenn sämtliche Trennebenen des Mischereinsatzes, an denen mindestens zwei Teilmischelemente zur Bildung eines der Mischelemente aneinander anliegen, alternierend um den Verdrehwinkel, insbesondere von 90° gedreht zueinander angeordnet sind.With a view to simple assembly and manufacturability of the mixer insert or the partial mixer inserts, it is preferred if the partial mixing elements adjacent to the longitudinal axis perpendicular to the longitudinal axis of the partial mixer inserts (adjacent to the longitudinal axis perpendicular to each) form or supplement one of the mixing elements on one, preferably the longitudinal axis receiving, parting plane or contact plane abut each other, and that the parting or contact planes of (at least) two mixing elements arranged alongside one another along the longitudinal axis are rotated relative to one another by the angle of rotation, preferably of 90 ° with respect to the longitudinal axis. In other words, the separating or contact planes of two adjacent mixing elements on which the partial mixing elements of these adjacent mixing elements are perpendicular to one another perpendicular to the longitudinal axis of the mixer insert are perpendicular to one another. It is useful, especially for one arrangement of the mixing elements rotated in an alternating manner when all the separating planes of the mixer insert, on which at least two partial mixing elements lie against one another to form one of the mixing elements, are arranged rotated relative to one another by the angle of rotation, in particular by 90 °.

Bevorzugt liegen die Trennebenen, an denen zwei Teilmischelemente aneinander anliegen, bezogen auf den Außenumfang bzw. die Mantelfläche des Mischereinsatzes radial nach innen versetzt, wobei die Trennebenen an ihren entlang der Längsachse beabstandeten Enden bevorzugt jeweils auf eine von jeweils einem Teilmischelement gebildeten bzw. begrenzten Radialebene stoßen, wobei an diesen axial über die Trennebene beabstandeten Radialebenen ein senkrecht zur Längsachse benachbartes Teilmischelement des benachbarten Teilmischereinsatzes anliegt.The separating planes, on which two partial mixing elements abut one another, are preferably offset radially inwards with respect to the outer circumference or the lateral surface of the mixer insert, the separating planes at their ends spaced along the longitudinal axis preferably each on a radial plane formed or delimited by a partial mixing element butt, on these radial planes spaced axially apart from the parting plane, a partial mixing element of the neighboring partial mixer insert, which is adjacent to the longitudinal axis, bears.

Anders ausgedrückt liegt eine Trennebene zwischen zwei entlang der Längsachse benachbarten Radialebenen, wobei jede Radialebene von einer in Richtung der Längsachse orientierten Stirnseite eines Teilmischelementes des Teilmischereinsatzes gebildet bzw. begrenzt ist. An diesen Radialebenen kann sich dann ein Teilmischelement eines senkrecht zur Längsachse benachbarten Teilmischereinsatzes abstützen bzw. dort anliegen, und zwar bevorzugt wiederum jeweils mit einer Radialebene, wobei diese Radialebenen von den voneinander abgewandten Stirnseiten dieses benachbarten Teilmischelementes gebildet bzw. begrenzt werden.In other words, there is a separating plane between two radial planes adjacent along the longitudinal axis, each radial plane being formed or delimited by an end face of a partial mixing element of the partial mixer insert oriented in the direction of the longitudinal axis. A partial mixing element of a partial mixer insert which is adjacent to the longitudinal axis perpendicular to the longitudinal axis can then be supported or rest there on these radial planes, preferably again in each case with a radial plane, these radial planes being formed or delimited by the end faces of this adjacent partial mixing element which face away from one another.

Besonders zweckmäßig ist es, wenn mindestens einer der Teilmischereinsätze, vorzugsweise sämtliche Teilmischereinsätze (jeweils), ein Teilmischelementpaar aufweist bzw. aufweisen, bevorzugt mehrere Teilmischelementpaare, jeweils umfassend ein erstes und ein zweites Teilmischelement (der Gesamtheit der Teilmischelemente), die bezüglich der Längsachse um 90° gedreht relativ zueinander angeordnet sind, und dass das erste Teilmischelement mehrere entlang einer sich senkrecht zur Längsachse erstreckenden ersten Querachse hintereinander angeordnete Stege aufweist, wobei sich jeweils entlang der ersten Querachse benachbarte (d.h. aneinander angrenzende bzw. nebeneinander angeordnete) Stege kreuzen und mindestens eine sich in Richtung der ersten Querachse offene, d.h. mit Blickrichtung in die erste Querachse durchsehbare bzw. durchblickbare, erste Öffnung begrenzen, und dass das zweite Teilmischelement mehrere entlang einer sich senkrecht zur Längsachse sowie senkrecht zur ersten Querachse erstreckenden zweiten Querachse hintereinander angeordnete Stege aufweist, wobei sich jeweils entlang der zweiten Querachse benachbarte (d.h. nebeneinander angeordnete) Stege kreuzen und mindestens eine sich in Richtung der zweiten Querachse offene bzw. in Blickrichtung auf die zweite Querachse durchsehbar bzw. durchblickbare zweite Öffnung begrenzen.It is particularly expedient if at least one of the partial mixer inserts, preferably all partial mixer inserts (in each case), has or have a partial mixing element pair, preferably a plurality of partial mixing element pairs, each comprising a first and a second partial mixing element (the totality of the partial mixing elements), which are 90 in relation to the longitudinal axis ° rotated relative to each other, and that the first partial mixing element has a plurality of webs arranged one behind the other along a first transverse axis extending perpendicularly to the longitudinal axis, adjacent webs crossing each other along the first transverse axis (i.e. adjacent or arranged next to one another) and at least one web open in the direction of the first transverse axis, ie with Limiting the viewing direction in the first transverse axis through the first opening, and that the second partial mixing element has a plurality of webs arranged one behind the other along a second transverse axis extending perpendicular to the longitudinal axis and perpendicular to the first transverse axis, with adjacent ones (i.e. side by side) in each case along the second transverse axis arranged) cross webs and delimit at least one second opening that is open in the direction of the second transverse axis or that can be seen or seen through in the viewing direction of the second transverse axis.

Bei einer wie zuvor beschrieben realisierten Anordnung der Stege von entlang der Längserstreckung benachbarten Teilmischelementen mindestens eines Teilmischereinsatzes ist es bevorzugt, wenn die Stege des ersten Teilmischelementes und die Stege des zweiten Teilmischelementes maximal an zwei parallelen sich entlang der ersten Querachse erstreckenden Verbindungslinien und/oder maximal an zwei, bevorzugt genau zwei, parallelen sich entlang der zweiten Querachse erstreckenden Verbindungslinien aneinander angrenzen, um somit schwierig herzustellende Hinterschnitte zu vermeiden. Dies führt dann bevorzugt dazu, dass ein Teil der Stege des ersten Teilmischelementes und/oder ein Teil der Stege des zweiten Teilmischelementes in Richtung der Längsachse freie Enden aufweist, an die dann bevorzugt im montierten Zustand wiederum freie Enden von Stegen eines Teilmischelementes des senkrecht zur Längserstreckung benachbarten Teilmischeinsatzes anliegen.In the case of an arrangement of the webs of partial mixing elements adjacent to one another along the longitudinal extent of at least one partial mixer insert, as described above, it is preferred if the webs of the first partial mixing element and the webs of the second partial mixing element are at most at two parallel connecting lines extending along the first transverse axis and / or at most Two, preferably exactly two, parallel connecting lines extending along the second transverse axis adjoin one another in order to avoid undercuts which are difficult to produce. This then preferably leads to the fact that a part of the webs of the first partial mixing element and / or a part of the webs of the second partial mixing element have free ends in the direction of the longitudinal axis, to the free ends of webs of a partial mixing element perpendicular to the longitudinal extension then preferably in the assembled state adjacent partial mixing insert.

In diesem Zusammenhang ist es vorteilhaft, wenn das erste Teilmischelement keine entlang der zweiten Querachse benachbarten Paare von sich kreuzenden Stegen aufweist, sondern solche Paare nur in Richtung der ersten Querachse nebeneinander angeordnet sind, und/oder dass das zweite Teilelement keine entlang der ersten Querachse benachbarten Paare von sich kreuzenden Stegen aufweist, sondern solche nur entlang der zweiten Querachse benachbart angeordnet sind.In this context, it is advantageous if the first partial mixing element does not have any pairs of crossing webs adjacent to one another along the second transverse axis, but rather such pairs are arranged next to one another only in the direction of the first transverse axis, and / or that the second partial element does not have any adjacent ones along the first transverse axis Has pairs of intersecting webs, but such are arranged only along the second transverse axis.

Wie eingangs bereits angedeutet ist es besonders zweckmäßig, wenn die Mischelemente des Mischereinsatzes eine Xgrid-Mischelementgeometrie aufweisen, d.h. jeweils zwei Gruppen von Stegen umfassen und die innerhalb einer Gruppe angeordneten Stege parallel ausgerichtet sind und sich die Stege einer der Gruppen mit den Stegen der anderen Gruppe kreuzen. Dabei ist es ganz besonders zweckmäßig, wenn die Mischelemente und insbesondere der gesamte Mischeinsatz eine querschnittliche Umfangskontur aufweist, die eine Kreisform, eine ovale Form, eine mehreckige Form, eine rechteckige Form oder eine quadratische Form aufweist, wobei bevorzugt die Innenkontur des einen solchen Mischereinsatz aufnehmenden, bevorzugt rohrförmigen Behälters an diese Umfangskontur angepasst ist, derart, dass der Mischereinsatz den Innenumfang des Behälters im Wesentlichen vollständig ausfüllt. Bevorzugt weist der Mischereinsatz insgesamt eine Zylinderform auf, mit einer kreisförmigen, ovalen, mehreckigen, rechteckigen oder quadratischen Grund- und/oder Querschnittsfläche.As already indicated at the beginning, it is particularly expedient if the mixing elements of the mixer insert have an Xgrid mixing element geometry, i.e. each comprise two groups of webs and the webs arranged within a group are aligned in parallel and the webs of one of the groups intersect with the webs of the other group. It is particularly expedient if the mixing elements and in particular the entire mixing insert have a cross-sectional circumferential contour which has a circular shape, an oval shape, a polygonal shape, a rectangular shape or a square shape, preferably the inner contour of the mixer insert receiving such , preferably tubular container is adapted to this circumferential contour in such a way that the mixer insert essentially completely fills the inner circumference of the container. The mixer insert preferably has an overall cylindrical shape, with a circular, oval, polygonal, rectangular or square base and / or cross-sectional area.

Die Erfindung führt auch auf einen statischen Mischer, umfassend einen, insbesondere rohrförmigen Behälter, in dem ein erfindungsgemäßer Mischereinsatz angeordnet, insbesondere eingeschoben ist, wobei im Rahmen des erfindungsgemäßen Verfahrens bevorzugt der Mischereinsatz zunächst durch Zusammenfügen mehrerer Teilmischereinsätze senkrecht zur Längsachse montiert bzw. zusammengefügt und dann in dem Behälter angeordnet wird.The invention also leads to a static mixer, comprising a, in particular tubular, container, in which a mixer insert according to the invention is arranged, in particular pushed in, wherein in the context of the method according to the invention, the mixer insert is preferably vertical first by joining several partial mixer inserts assembled or assembled to the longitudinal axis and then arranged in the container.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen.Further advantages, features and details of the invention emerge from the following description of preferred exemplary embodiments and from the drawings.

Diese zeigen in:

Fig. 1a:
eine Seitenansicht eines bevorzugten Ausführungsbeispiels eines erfindungsgemäßen Mischereinsatzes,
Fig. 1b:
eine Draufsicht auf den Mischereinsatz gemäß Fig. 1a,
Fig. 2:
eine in Bezug auf Fig. 1a um die Längsachse gedrehte Ansicht des Mischereinsatzes gemäß den Fig. 1a und 1b,
Fig. 3 und Fig. 4:
unterschiedliche perspektivische Ansichten eines Teilmischereinsatzes zur Bildung bzw. Montage des Mischereinsatzes gemäß den Fig. 1a und 1b,
Fig. 5:
eine perspektivische Ansicht von zwei Teilmischereinsätzen bei der Montage zu einem Mischereinsatz gemäß den Fig. 1a bis 2,
Fig. 6:
eine perspektivische Ansicht eines Spritzgusswerkzeugausschnittes zur Herstellung eines Teilmischereinsatzes gemäß den Fig. 3 und 4 bzw. 5.
These show in:
Fig. 1a:
a side view of a preferred embodiment of a mixer insert according to the invention,
Fig. 1b:
a plan view of the mixer insert according Fig. 1a .
Fig. 2:
one in terms of Fig. 1a view of the mixer insert rotated about the longitudinal axis according to the 1a and 1b .
3 and 4:
different perspective views of a partial mixer insert to form or assemble the mixer insert according to the 1a and 1b .
Fig. 5:
a perspective view of two mixer inserts during assembly to a mixer insert according to the 1a to 2 .
Fig. 6:
a perspective view of an injection mold cutout for producing a mixer insert according to the Fig. 3 and 4 or 5.

In den Figuren sind gleiche Elemente und Elemente mit der gleichen Funktion mit den gleichen Bezugszeichen gekennzeichnet.In the figures, the same elements and elements with the same function are identified by the same reference symbols.

In den Fig. 1a, 1b und 2 ist ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Mischereinsatzes 1 zur Herstellung eines statischen Mischers gezeigt. In dem gezeigten Ausführungsbeispiel ist der Mischereinsatz 1 aus Kunststoff hergestellt, und zwar im Kunststoffspritzgussverfahren. Der Mischereinsatz 1 ist mehrteilig ausgebildet und umfasst, in dem gezeigten Ausführungsbeispiel zwei identische Teilmischereinsätze 2, wie diese perspektivisch in den Fig. 3, 4 und 5 dargestellt sind.In the 1a, 1b and 2 A preferred embodiment of a mixer insert 1 according to the invention for producing a static mixer is shown. In the exemplary embodiment shown, the mixer insert 1 is made of plastic, specifically using the plastic injection molding process. The mixer insert 1 is constructed in several parts and, in the exemplary embodiment shown, comprises two identical partial mixer inserts 2, as seen in perspective in FIGS Fig. 3 . 4 and 5 are shown.

Zum Herstellen eines statischen Mischers muss der (montierte) Mischereinsatz 1 lediglich entlang seiner Längserstreckung in einen, bevorzugt rohrförmigen Behälter eingeschoben werden.To produce a static mixer, the (assembled) mixer insert 1 merely has to be inserted into a preferably tubular container along its longitudinal extent.

Zu erkennen ist in Fig. 1, dass der Mischereinsatz 1 eine querschnittlich kreisförmige Umfangskontur aufweist, und insgesamt kreiszylindrisch konturiert ist. Der Mischereinsatz 1 umfasst eine Mehrzahl von entlang einer Längsachse L (hier der Längsmittelachse) hintereinander angeordneter Mischelemente 3a, 3b, 3c, 3d... In dem gezeigten Ausführungsbeispiel sind jeweils entlang der Längsachse aneinander angrenzende bzw. aufeinanderfolgende Mischelemente 3a, 3b; 3b, 3c; 3c, 3d; ... alternierend um einen Verdrehwinkel, hier beispielsweise (und bevorzugt) von 90° bezüglich der Längsachse zueinander gedreht angeordnet, was bedeutet, dass später noch zu erläuternde Kreuzungsachsen 4a, 4b bzw. 5a, 5b, 5c, 5d von benachbarten Mischelementen 3a, 3b bzw. von relativ zueinander um 90° gedrehten Mischelementen 3a, 3b nicht nur im rechten Winkel zur Längsachse L sondern auch zueinander rechtwinklig verlaufen. Dies gilt auch für später noch zu erläuternde Öffnungen der relativ zueinander gedrehten Mischelementen 3a, 3b.It can be seen in Fig. 1 that the mixer insert 1 has a cross-sectionally circular circumferential contour and is contoured in a circular cylindrical manner overall. The mixer insert 1 comprises a plurality of mixing elements 3a, 3b, 3c, 3d arranged one behind the other along a longitudinal axis L (here the longitudinal central axis). In the exemplary embodiment shown, adjacent or successive mixing elements 3a, 3b; 3b, 3c; 3c, 3d; ... alternately arranged at an angle of rotation, here for example (and preferably) of 90 ° with respect to the longitudinal axis, which means that crossing axes 4a, 4b or 5a, 5b, 5c, 5d of adjacent mixing elements 3a to be explained later 3b or of mixing elements 3a, 3b rotated relative to one another not only at right angles to the longitudinal axis L but also at right angles to one another. This also applies to openings of the mixing elements 3a, 3b rotated relative to one another, which will be explained later.

Jedes Mischelement 3a, 3b, 3c, 3d umfasst zwei Gruppen 6, 7 von Stegen, wobei Stege 8 der einen Gruppe 6 (innerhalb der Gruppe 6) parallel zueinander orientiert sind, ebenso wie Stege 9 der anderen Gruppe 7 (innerhalb der Gruppe 7), wobei sich die Stege 8, 9 der beiden Gruppe 6, 7 kreuzen, und zwar auf den zuvor erwähnten, sich senkrecht zur Längsachse L erstreckenden Kreuzungsachsen 4a, 4b, 5a, 5b, 5c, 5d. Insgesamt ist dabei zu erkennen, dass die Stege 8, 9 von einem Teil der Mischelemente 3b, 3d, ... sich im Wesentlichen (schräg) in Richtung der Längsachse L erstrecken und Stege 10, 11 (vgl. Fig. 2) von um 90° hierzu gedrehten Mischelementen schräg senkrecht zur Längsachse L. Anders ausgedrückt erstrecken sich die Stege 8, 9 hinsichtlich ihrer Längserstreckung, d.h. von ihrem jeweiligen ersten axialen Ende bis zu ihrem zweiten axialen Ende entlang einer Hauptverlaufsrichtung H1, zu welcher sie einen Winkel von hier beispielsweise 45° einschließen. Die Hauptverlaufsrichtung H1 verläuft dabei parallel zur Längsachse L. Die Stege 10, 11 des benachbarten Mischelementes erstrecken sich bezüglich ihrer jeweiligen Längserstreckung entlang einer zweiten Hauptverlaufsrichtung H2, unter Einschluss eines Winkels zu dieser, hier von beispielhaft 45°, wobei die zweite Hauptverlaufsrichtung H2 senkrecht zur ersten Hauptverlaufsrichtung H1 verläuft, sowie senkrecht zur Längsachse L und parallel zu einer später noch zu erläuternden Querachse Q1.Each mixing element 3a, 3b, 3c, 3d comprises two groups 6, 7 of webs, webs 8 of one group 6 (within group 6) being oriented parallel to one another, as well as webs 9 of the other group 7 (within group 7) , wherein the webs 8, 9 of the two groups 6, 7 intersect, specifically on the aforementioned intersection axes 4a, 4b, 5a, 5b, 5c, 5d, which extend perpendicular to the longitudinal axis L. Overall, it can be seen that the webs 8, 9 of a part of the mixing elements 3b, 3d, ... extend essentially (obliquely) in the direction of the longitudinal axis L and webs 10, 11 (cf. Fig. 2 ) of mixing elements rotated by 90 ° to this obliquely perpendicular to the longitudinal axis L. In other words, the webs 8, 9 extend with respect to their longitudinal extent, ie from their respective first axial end to their second axial end along a main direction of travel H 1 , to which they unite Include angles from here, for example 45 °. The main running direction H 1 runs parallel to the longitudinal axis L. The webs 10, 11 of the adjacent mixing element extend with respect to their respective longitudinal extension along a second main running direction H 2 , including an angle to this, here by way of example 45 °, the second main running direction H 2 runs perpendicular to the first main course direction H 1 , as well as perpendicular to the longitudinal axis L and parallel to a transverse axis Q 1 to be explained later.

In dem konkreten Ausführungsbeispiel umfasst jedes Mischelement 3a, 3b, 3c, 3d insgesamt sechs senkrecht zur Längsachse L aufeinanderfolgende Stege, wobei diese Zahl variieren kann - im Minimum sind es zwei benachbarte Stege, wobei auch drei, vier, fünf, sechs oder auch mehr als sechs Stege realisierbar sind.In the specific exemplary embodiment, each mixing element 3a, 3b, 3c, 3d comprises a total of six webs which follow one another perpendicular to the longitudinal axis L, this number being able to vary - there are at least two adjacent webs, three, four, five, six or even more than six webs can be realized.

Aus Fig. 1a ist noch zu erkennen, dass die sich kreuzenden Stege 8, 9 bzw. 10, 11 Öffnungen 12, 13 begrenzen, wobei die Öffnungen 12, 13 von um 90° zueinander gedrehten Mischelementen bezüglich ihrer jeweiligen senkrecht zur Längsachse L orientierten Längserstreckung einen Winkel zueinander von 90° aufweist.Out Fig. 1a it can also be seen that the crossing webs 8, 9 or 10, 11 delimit openings 12, 13, the openings 12, 13 of mixing elements rotated by 90 ° with respect to their respective ones longitudinal extension oriented perpendicular to the longitudinal axis L has an angle of 90 ° to one another.

Wie erwähnt, ist der in den Fig. 1a bis 2 dargestellte Mischereinsatz 1 zusammengesetzt aus insgesamt zwei Teilmischereinsätzen 2, wie diese in den Fig. 3 und 4 dargestellt sind. Es sind auch alternative Ausführungsformen mit mehr als zwei Teilmischereinsätzen realisierbar. Vorliegend sind die Teilmischereinsätze 2 bzw. 2a, 2b (vgl. Fig. 2 und Fig. 5) zur Bildung des Mischereinsatzes 1 identisch.As mentioned, the one in the 1a to 2 shown mixer insert 1 composed of a total of two mixer inserts 2, as in the Fig. 3 and 4 are shown. Alternative embodiments with more than two partial mixer inserts can also be implemented. The partial mixer inserts 2 and 2a, 2b (cf. Fig. 2 and Fig. 5 ) identical to form the mixer insert 1.

Besonders gut anhand von Fig. 4 wird der Aufbau eines solchen einteiligen, hier bevorzugt kunststoffspritzgegossenen Teilmischereinsatzes 2 deutlich. Ein Teilmischereinsatz 2 umfasst mehrere entlang der Längsachse L hintereinander angeordnete Teilmischelemente 14a, 14b, 14c, 14d... Jedem Teilmischelement 14a, 14b, 14c, 14d ist beim montierten Mischereinsatz 1, wie insbesondere anhand von Fig. 5 deutlich wird, ein senkrecht zur Längsachse L benachbartes hier zu einer jeweiligen Trennebene spiegelsymmetrisches Teilmischelement 15a, 15b, 15c, 15d eines anderen Teilmischereinsatzes 2 zugeordnet, wobei sich die senkrecht zur Längsachse L gegenüberliegenden Teilmischelemente 14a, 15a; 14b, 15b; 14c, 15c; 14d, 15d; ... zu jeweils einem Mischelement 3a, 3b, 3c, 3d ergänzen bzw. zusammenfügen.Particularly good based on Fig. 4 the structure of such a one-piece, preferably plastic injection-molded part mixer insert 2 becomes clear. A partial mixer insert 2 comprises a plurality of partial mixing elements 14a, 14b, 14c, 14d arranged one behind the other along the longitudinal axis L. Each partial mixing element 14a, 14b, 14c, 14d is in the assembled mixer insert 1, as is particularly the case with reference to FIG Fig. 5 it becomes clear that a partial mixing element 15a, 15b, 15c, 15d, which is mirror-symmetrical here to a respective parting plane, is assigned to another partial mixer insert 2, the partial mixing elements 14a, 15a; 14b, 15b; 14c, 15c; 14d, 15d; ... add or merge to a mixing element 3a, 3b, 3c, 3d.

Konkret werden in dem gezeigten Ausführungsbeispiel zwei, hier beispielhaft identische Teilmischereinsätze 2a, 2b senkrecht zur Längsachse L des fertigen Mischereinsatzes 1 in einer Relativbewegungsrichtung M (Montagerichtung) aufeinander zu bewegt, so dass vorliegend aufgrund der speziellen Anordnung der Teilmischelemente 14a bis 14d und 15a bis 15d zueinander diese verzahnungsartig ineinandergreifen und somit im montierten Zustand des Mischereinsatzes 1 eine formschlüssige Verbindung zwischen den Teilmischereinsätzen 2a, 2b bilden, die eine Relativbewegung der Teilmischereinsätze 2a, 2b entlang der Längsachse L sicher verhindert.Specifically, in the exemplary embodiment shown, two partial mixer inserts 2a, 2b, which are identical here by way of example, are moved perpendicular to the longitudinal axis L of the finished mixer insert 1 in a relative movement direction M (assembly direction), so that in the present case due to the special arrangement of the partial mixing elements 14a to 14d and 15a to 15d these mesh with one another in a tooth-like manner and thus form a positive connection between the partial mixer inserts 2a, 2b in the assembled state of the mixer insert 1, which form a relative movement the partial mixer inserts 2a, 2b are reliably prevented along the longitudinal axis L.

In Fig. 4 ist im Detail ein möglicher Aufbau einer bevorzugten Ausführungsvariante eines Teilmischereinsatzes 2 gezeigt. Dieser umfasst in dem gezeigten Ausführungsbeispiel mehrere Paare 16 von in Richtung der Längsachse L aneinander angrenzender und einstückig ausgebildeter Teilmischelemente 14a, 14b, die bezüglich der Längsachse L um 90° relativ zueinander gedreht angeordnet sind. Ein erstes Teilmischelement 14a des Paares 16 umfasst mehrere entlang einer sich senkrecht zur Längsachse L erstreckenden ersten Querachse Q1 hintereinander angeordnete Stege 10, 11, wobei die Stege 10, 11, wie bereits anhand des Mischereinsatzes 1 erläutert auch hier in zwei Gruppen angeordnet sind, wobei die Stege 10 einer der Gruppen (innerhalb der Gruppe) parallel ausgerichtet sind, ebenso wie die Stege 11 der anderen Gruppe und sich die Stege 10, 11 der unterschiedlichen Gruppen kreuzen, und zwar entlang von Kreuzungsachsen 4a, 4b, die parallel verlaufen zur ersten Querachse Q1. In Richtung der ersten Querachse Q1 bzw. parallel zu dieser verlaufen auch von den Stegen 10, 11 begrenzte Öffnungen 13, die in Richtung der ersten Querachse Q1 durchsehbar sind. Der Aufbau des weiteren Teilmischelements 14b des Paares 16 ist genau um 90° hierzu gedreht. Dabei sind entlang einer sich senkrecht zur Längsachse L sowie senkrecht zur ersten Querachse Q1 erstreckenden zweiten Querachse Q2 mehrere Stege 8, 9 hintereinander angeordnet sind, wobei die Stege 8, 9 in zwei Gruppen von Stegen 8, 9 unterteilt sind, wobei die Stege 8 einer der Gruppen parallel zueinander verlaufen und die Stege 9 der anderen Gruppen 7 parallel zueinander, wobei sich die Stege 8, 9 der Gruppen 6, 7 kreuzen, und zwar entlang von Kreuzungsachsen 5a, 5b, die parallel zur zweiten Querachse Q2 verlaufen ebenso wie die Längserstreckungen von Öffnungen 12, die von den Stegen 8, 9 begrenzt werden.In Fig. 4 a possible construction of a preferred embodiment variant of a partial mixer insert 2 is shown in detail. In the exemplary embodiment shown, this comprises a plurality of pairs 16 of partial mixing elements 14a, 14b which are adjacent to one another and are formed in one piece in the direction of the longitudinal axis L and are arranged rotated by 90 ° with respect to the longitudinal axis L relative to one another. A first partial mixing element 14a of the pair 16 comprises a plurality of webs 10, 11 arranged one behind the other along a first transverse axis Q 1 extending perpendicularly to the longitudinal axis L, the webs 10, 11, as already explained with reference to the mixer insert 1, also being arranged here in two groups, wherein the webs 10 of one of the groups (within the group) are aligned in parallel, just as the webs 11 of the other group and the webs 10, 11 of the different groups intersect, namely along intersection axes 4a, 4b which run parallel to the first Transverse axis Q 1 . In the direction of the first transverse axis Q 1 or parallel to it, openings 13 delimited by the webs 10, 11 also run and can be seen through in the direction of the first transverse axis Q 1 . The structure of the further partial mixing element 14b of the pair 16 is rotated exactly 90 ° to this. A plurality of webs 8, 9 are arranged one behind the other along a second transverse axis Q 2 extending perpendicular to the longitudinal axis L and perpendicular to the first transverse axis Q 1 , the webs 8, 9 being divided into two groups of webs 8, 9, the webs 8 one of the groups run parallel to one another and the webs 9 of the other groups 7 run parallel to one another, the webs 8, 9 of the groups 6, 7 crossing each other, specifically along intersection axes 5a, 5b, which also run parallel to the second transverse axis Q 2 like the longitudinal extensions of openings 12, which are delimited by the webs 8, 9.

Zu erkennen ist, dass das erste Teilmischelement 15a des Paares 16 in Richtung der zweiten Querachse Q2 keine benachbarten Paare von sich kreuzenden Stegen aufweist, ebensowenig wie das zweite Teilmischelement 14b in Richtung der ersten Querachse Q1. Dies führt dazu, dass zwei nebeneinander angeordnete der Teilmischelemente sich lediglich entlang von zwei parallel zur zweiten Querachse Q2 verlaufenden Verbindungslinien V1 und V2 berühren, ebenso wie an aus Übersichtlichkeitsgründen nicht eingezeichneten, senkrecht hierzu bzw. parallel zur ersten Querachse Q1 verlaufenden parallelen Verbindungslinien V1, V2. Es existieren demnach Stege mit freien Enden 17, an die in Richtung der Längsachse L keine Stege eines unmittelbar angrenzenden Teilmischelementes desselben Teilmischereinsatzes 2 angrenzen.It can be seen that the first partial mixing element 15a of the pair 16 in the direction of the second transverse axis Q 2 has no adjacent pairs of intersecting webs, just as little as the second partial mixing element 14b in the direction of the first transverse axis Q 1 . This means that two adjacent of part mixing elements arranged solely along two parallel to the second transverse axis Q 2 extending connecting lines V 1 and V 2 touch, as well as to for reasons of clarity not illustrated, perpendicular thereto and parallel to the first transverse axis Q 1 extending parallel Connection lines V 1 , V 2 . Accordingly, there are webs with free ends 17, to which no webs of an immediately adjacent partial mixing element of the same partial mixer insert 2 adjoin in the direction of the longitudinal axis L.

Aus Fig. 4 ergibt sich auch, dass jeweils zwei um 90° gedreht angeordnete Teilmischelemente 14a, 14b; 14b, 14c; 14c, 14d ... zwei unterschiedliche, um 90° zueinander gedrehte und in dem konkreten Ausführungsbeispiel beide die Längsachse L (hier die Längsmittelachse) aufnehmende Trennebenen T1, T2 begrenzen, an denen die jeweiligen Teilmischelemente eines Teilmischereinsatzes 2 zur Anlage gelangen an den senkrecht zur Längsachse L benachbarten bzw. gegenüberliegenden Teilmischelementen eines anderen Teilmischereinsatzes 2.Out Fig. 4 it also results that two partial mixing elements 14a, 14b; 14b, 14c; 14c, 14d ... two different separation planes T 1 , T 2 , rotated by 90 ° to one another and in the specific exemplary embodiment both receiving the longitudinal axis L (here the longitudinal central axis), at which the respective partial mixing elements of a partial mixer insert 2 come into contact with the Submixing elements of another submixer insert 2 that are adjacent or opposite to one another perpendicular to the longitudinal axis L.

Dies ergibt sich insbesondere auch anhand der Fig. 5. Dort ist eine Trennebene T1 eingezeichnet, die im montierten Zustand die Längsachse L des Mischereinsatzes 1 aufnimmt. An dieser Trennebene T1 treffen sich die in der Zeichnungsebene unten rechts äußersten bzw. endseitigen Teilmischelemente der benachbarten Teilmischereinsätze 2a, 2b. Die entlang der Längsachse L darauffolgenden Teilmischelemente treffen sich an einer hier zu der Trennebene T1 rechtwinklig angeordneten Trennebene T2, die ebenfalls von der Längsachse L durchsetzt ist.This is particularly evident from the Fig. 5 , A parting plane T 1 is drawn in there, which in the assembled state receives the longitudinal axis L of the mixer insert 1. At this parting plane T 1 the outermost or end-side partial mixing elements of the adjacent partial mixer inserts 2a, 2b meet at the bottom right in the drawing plane. The partial mixing elements following along the longitudinal axis L meet at a separating plane T 2 arranged here at right angles to the separating plane T 1 , which is likewise penetrated by the longitudinal axis L.

Im Hinblick auf die Lage der Trennebenen T1 und T2 wird nochmals auf Fig. 4 verwiesen. Zu erkennen ist, dass die erste Querachse Q1 senkrecht auf der Flächenerstreckung der ersten Trennebene T1 steht. Analog steht die zweite Querachse Q2 senkrecht auf der Flächenerstreckung der zweiten Trennebene T2. Aus Fig. 4 ergibt sich weiterhin, dass die ersten Trennebenen T1 eingerahmt sind zwischen zwei zueinander parallel verlaufenden und sich senkrecht zur ersten Trennebene T1 erstreckenden Radialebenen R1, die begrenzt werden von zwei einander gegenüberliegenden Stirnseiten zweier Teilmischelemente. Ebenso sind die zweiten Trennebenen T2 axial zwischen zwei von zwei Teilmischelementen begrenzten Radialebenen R1 angeordnet. Die Radialebenen R1 verlaufen hinsichtlich ihrer Flächenerstreckung sowohl senkrecht zu den ersten als auch zu den zweiten Trennebenen T1 und T2 und werden orthogonal durchsetzt von der Längsachse L.With regard to the position of the parting planes T 1 and T 2 is again on Fig. 4 directed. It can be seen that the first transverse axis Q 1 is perpendicular to the surface extension of the first parting plane T 1 . Analogously, the second transverse axis Q 2 is perpendicular to the surface extension of the second parting plane T 2 . Out Fig. 4 results further in that the first parting lines T 1 are boxed two between two mutually parallel and extending perpendicular to the first parting plane T 1 radial planes R 1, bounded by two opposing end faces part of the mixing elements. Likewise, the second parting planes T 2 are arranged axially between two radial planes R 1 delimited by two partial mixing elements. The radial planes R 1 are perpendicular to both the first and the second parting planes T 1 and T 2 with respect to their surface extent and are penetrated orthogonally by the longitudinal axis L.

Schlussendlich wird noch auf Fig. 6 verwiesen. Zu erkennen ist ein Ausschnitt eines Teilmischereinsatzes 2 umfassend zwei um 90° verdreht zueinander angeordnete Teilmischelemente 14a, 14b, die wie zuvor beschrieben ausgebildet und angeordnet sind. Zu erkennen ist ebenfalls ein mehrere Formteile aufweisendes Spritzgusswerkzeug 18 zum Herstellen des Teilmischereinsatzes 2 im Kunststoffspritzgussverfahren.In the end, is still on Fig. 6 directed. A section of a partial mixer insert 2 can be seen, comprising two partial mixing elements 14a, 14b, which are rotated by 90 ° with respect to one another and which are designed and arranged as described above. Also recognizable is an injection molding tool 18 having a plurality of molded parts for producing the partial mixer insert 2 in the plastic injection molding process.

BezugszeichenlisteReference list

11
MischereinsatzMixer insert
2, 2a, 2b2, 2a, 2b
TeilmischereinsätzePartial mixer inserts
3, 3a, 3b, 3c, 3d,...3, 3a, 3b, 3c, 3d, ...
MischelementeMixing elements
4, 4a, 4b,...4, 4a, 4b, ...
KreuzungsachsenCrossing axes
5, 5a, 5b, 5c, 5d,...5, 5a, 5b, 5c, 5d, ...
KreuzungsachsenCrossing axes
66
Gruppegroup
77
Gruppegroup
88th
StegeWalkways
99
StegeWalkways
1010
StegeWalkways
1111
StegeWalkways
1212th
Öffnungenopenings
1313
Öffnungenopenings
14, 14a, 14b, 14c, 14d,...14, 14a, 14b, 14c, 14d, ...
TeilmischelementePartial mixing elements
15, 15a, 15b, 15c, 15d,..15, 15a, 15b, 15c, 15d, ..
TeilmischelementePartial mixing elements
1616
Paar von TeilmischelementenPair of partial mixing elements
1717
freie Endenfree ends
1818th
WerkzeugTool
LL
Längsachselongitudinal axis
Q1Q1
erste Querachsefirst transverse axis
Q2Q2
zweite Querachsesecond transverse axis
MM
Relativmontagerichtung/RelativbewegungsrichtungRelative assembly direction / relative movement direction
H1 H 1
HauptverlaufsrichtungMain course direction
H2 H 2
HauptverlaufsrichtungMain course direction
T1 T 1
TrennebeneDividing plane
T2 T 2
TrennebeneDividing plane
R1 R 1
RadialebeneRadial plane

Claims (17)

  1. A mixer insert (1) for a static mixer, comprising a plurality of mixing elements (3, 3a, 3b, 3c, 3d, etc.) which are disposed one behind the other along a longitudinal axis (L) and preferably immediately adjoin each other and each comprise a plurality of crossing rods (8, 9; 10, 11), at least two mixing elements consecutive along the longitudinal axis (L) among the plurality of mixing elements (3, 3a, 3b; 3b, 3c; 3c, 3d; etc.) being turned relative to each other by a twist angle of preferably 90° with respect to the longitudinal axis (L), the mixer insert (1) being composed of multiple separate mixer-insert parts (2, 2a, 2b) which each extend along the longitudinal axis and which are disposed adjacent to each other perpendicular to the longitudinal axis (L), each mixer-insert part (2, 2a, 2b) having a plurality of mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) which are disposed one behind the other along the longitudinal axis (L) and are integrally connected to each other along the longitudinal axis (L), and that the mixing-element parts (14, 15; 14a, 15a; 14b, 15b; 14c, 15c, 14d, 15d; etc.) of the mixer-insert parts (2, 2a, 2b) that are disposed next to each other perpendicular to the longitudinal axis form one of the mixing elements (3, 3a, 3b, 3c, 3d, etc.), the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) of at least one of the mixer-insert parts (2, 2a, 2b) each having crossing rods (8, 9, 10, 11),
    characterized in that
    the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) of each mixer-insert part (2, 2a, 2b) immediately adjoin each other and that at least two of the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) of the mixer-insert parts (2, 2a, 2b) that immediately adjoin each other along the longitudinal axis (L) are turned relative to each other by the twist angle with respect to the longitudinal axis (L).
  2. The mixer insert according to claim 1,
    characterized in that
    the mixing elements (3, 3a, 3b, 3c, 3d, etc.) and/or the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) are turned by the twist angle of preferably 90° with respect to the longitudinal axis (L) in an alternating manner along the longitudinal axis (L).
  3. The mixer insert according to any one of claims 1 or 2,
    characterized in that
    the mixer-insert parts (2, 2a, 2b) mesh with each other in a formfitting fashion perpendicular to the longitudinal axis (L) in such a manner that the mixer-insert parts (2, 2a, 2b) are secured against relative displacement along the longitudinal axis.
  4. The mixer insert according to any one of the preceding claims,
    characterized in that
    the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) of at least one of the mixer-insert parts (2, 2a, 2b) have rod portions and rod portions of mixing-element parts (14, 15; 14a, 15a; 14b, 15b; 14c, 15c; 14d, 15d, etc.) adjacent to each other perpendicular to the longitudinal axis (L) come together to form the crossing rods (8, 9, 10, 11) of the mixing elements (3, 3a, 3b, 3c, 3d, etc.).
  5. The mixer insert according to any one of the preceding claims,
    characterized in that
    the rod portions and/or rods (8, 9; 10, 11) of mixing-element parts (14, 15; 14a, 15a; 14b, 15b; 14c, 15c; 14d, 15d; etc.) disposed axially next to each other, in particular only some of them, immediately adjoin each other.
  6. The mixer insert according to any one of the preceding claims,
    characterized in that
    rods (8, 9; 10, 11) of the mixing-element parts (14, 15; 14a, 15a; 14b, 15b; 14c, 15c; 14d, 15d; etc.) adjacent to each other perpendicular to the longitudinal axis (L) extend parallel.
  7. The mixer insert according to any one of the preceding claims,
    characterized in that
    mixing-element parts that adjoin each other along the longitudinal axis (L) among the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) of at least one of the mixer-insert parts (2, 2a, 2b) integrally merge with each other at free ends of the respective crossing rods (8, 9, 10, 11) and/or that some of the rods (8, 9, 10, 11) of the mixing-element parts of one of the mixer-insert parts and some of the rods of the mixing-element parts of the other one of the mixer-insert parts have free ends in the direction of the longitudinal axis, the respective free rod ends of the mixing-element parts adjoining each other along the longitudinal axis of mixer-insert parts adjacent to each other perpendicular to the longitudinal axis (L) are in contact with each other in the assembled state.
  8. The mixer insert according to claim 7,
    characterized in that
    the free ends of parallel rods and/or rod portions of the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) that point in the same direction and adjoin a common mixing-element part adjacent along the longitudinal axis (L) among the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) are spaced apart, a clearance being maintained perpendicular to the longitudinal center axis (L).
  9. The mixer insert according to any one of the preceding claims,
    characterized in that
    the mixer-insert parts (2, 2a, 2b), in particular exactly two thereof, that are adjacent to each other perpendicular to the longitudinal axis (L) are identical.
  10. The mixer insert according to any one of the preceding claims,
    characterized in that
    to form one of the mixing elements (3, 3a, 3b, 3c, 3d, etc.), the mixing-element parts (14, 15; 14a, 15a; 14b, 15b; 14c, 15c; 14d, 15d; etc.) of the mixer-insert parts (2, 2a, 2b) that are each adjacent to each other perpendicular to the longitudinal axis (L) are in contact with each other at a separating plane (T1, T2), which preferably accommodates the longitudinal axis (L), and that the separating planes (T1, T2) of two mixing elements (3; 3a, 3b; 3b, 3c; 3c, 3d; etc.) disposed next to each other along the longitudinal axis (L) are turned relative to each other by 90° with respect to the longitudinal axis (L), preferably all separating planes (T1, T2) being turned relative to each other by 90° in an alternating manner.
  11. The mixer insert according to any one of the preceding claims,
    characterized in that
    at least one of the mixer-insert parts (2, 2a, 2b) has a pair (16) of mixing-element parts, preferably multiple pairs (16) of mixing element parts, each comprising first and second mixing-element parts (14; 14a, 14b; 14b, 14c; 14c, 14d; 15; 15a, 15b; 15b, 15c; 15c, 15d; etc.) which are turned relative to each other by 90° with respect to the longitudinal axis, and that the first mixing-element part (14a) has multiple rods (8, 9) which are disposed one behind the other along a first transverse axis (Q1) extending perpendicular to the longitudinal axis (L), rods (10, 11) that are adjacent to each other along the first transverse axis (Q1) crossing each other and defining at least one first opening (12) which is open in the direction of the first transverse axis (Q1), and that the second mixing-element part (14b) has multiple rods (10, 11) disposed one behind the other along a second transverse axis (Q2) extending perpendicular to the longitudinal axis (L) and perpendicular to the first transverse axis (Q1), rods (10, 11) that are adjacent to each other along the second transverse axis (Q2) crossing each other and defining at least one second opening (13) open in the direction of the second transverse axis (Q2).
  12. The mixer insert according to any one of the preceding claims,
    characterized in that
    the rods (8, 9) of the first mixing-element part (14a) and the rods (10, 11) of the second mixing-element part (14b) adjoin each other at no more than two, preferably exactly two, parallel connecting lines (V1, V2) extending along the first and/or second transverse axis (Q1, Q2).
  13. The mixer insert according to any one of the preceding claims,
    characterized in that
    the first mixing-element part (14a) does not have any pairs of crossing rods (8, 9; 10, 11) that are adjacent along the second transverse axis (Q2) and/or that the second mixing-element part (14b) does not have any pairs of crossing rods (8, 9; 10, 11) that are adjacent along the first transverse axis (Q1).
  14. The mixer insert according to any one of the preceding claims,
    characterized in that
    the rods (8, 9; 10, 11) of the mixing elements (3, 3a, 3b, 3c, 3d, etc.) are each disposed in two groups (6, 7), and that the rods (8, 9; 10, 11) within one group (6, 7) are oriented parallel and the rods (8, 9; 10, 11) of one of the groups (6, 7) cross the rods (8, 9; 10, 11) of the other groups (6, 7), and that the mixing elements (3, 3a, 3b, 3c, 3d, etc.) preferably have a circular, oval, polygonal, rectangular, or square cross-sectional circumferential contour.
  15. Mixer insert according to any one of the preceding claims,
    characterized in that
    the mixing-element parts (14, 14a, 14b, 14c, 14d, etc.; 15, 15a, 15b, 15c, 15d, etc.) of the mixer-insert parts (2, 2a, 2b) have the same extension along the longitudinal axis (L), thus allowing two of the mixer-insert parts (2, 2a, 2b) to be inserted into each other perpendicular to the longitudinal axis (L) without one of the mixer-insert parts (2, 2a, 2b) bending perpendicular to the longitudinal axis (L).
  16. A static mixer comprising an in particular tubular container and a mixer insert (1) according to any one of the preceding claims disposed, preferably inserted, therein.
  17. A method for producing a mixer insert according to any one of the preceding claims, comprising the steps of:
    • providing at least two mixer-insert parts (2, 2a, 2b) which are in particular injection-molded and extend along a longitudinal axis and each have a plurality of integrally interconnected mixing-element parts (14, 14a, 14b, 14c, 14d; etc. 15, 15a, 15b, 15c, 15d, etc.) disposed one behind the other along the longitudinal axis (L) and immediately adjoining each other, of which at least two immediately adjoining mixing-element parts (14, 14a, 14b, 14c, 14d; etc. 15, 15a, 15b, 15c, 15d, etc.) are turned relative to each other by a twist angle,
    • joining the mixer-insert parts (2, 2a, 2b) in at least one assembly direction, which extends perpendicular to the longitudinal axis (L), in such a manner that the mixing-element parts (14, 15; 14a, 15a; 14b, 15b; 14c, 15c; 14d, 15d; etc.) that are disposed next to each other perpendicular to the longitudinal axis of the mixer-insert parts (2, 2a, 2b) come together to form one of the mixer inserts (3, 3a, 3b, 3c, 3d, etc.), of which at least two mixing elements (3; 3a, 3b; 3b, 3c; 3c, 3d; etc.) disposed next to each other along the longitudinal axis (L) are turned 90° relative to each other by the twist angle.
EP16822912.8A 2015-12-08 2016-12-07 Mixing insert, static mixer and productionmethod Active EP3386617B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16822912T PL3386617T3 (en) 2015-12-08 2016-12-07 Mixing insert, static mixer and productionmethod

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015121351.6A DE102015121351A1 (en) 2015-12-08 2015-12-08 Mixer insert, static mixer and manufacturing process
PCT/EP2016/080149 WO2017097860A1 (en) 2015-12-08 2016-12-07 Mixer insert, static mixer and production method

Publications (2)

Publication Number Publication Date
EP3386617A1 EP3386617A1 (en) 2018-10-17
EP3386617B1 true EP3386617B1 (en) 2020-03-04

Family

ID=57755247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16822912.8A Active EP3386617B1 (en) 2015-12-08 2016-12-07 Mixing insert, static mixer and productionmethod

Country Status (7)

Country Link
US (1) US10882014B2 (en)
EP (1) EP3386617B1 (en)
CN (1) CN108367258B (en)
DE (1) DE102015121351A1 (en)
ES (1) ES2793307T3 (en)
PL (1) PL3386617T3 (en)
WO (1) WO2017097860A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3495036B1 (en) * 2017-12-05 2022-05-18 Stamixco AG Mixer insert for static mixer, static mixer and method of manufacturing
EP3789107A1 (en) 2019-09-04 2021-03-10 Stamixco-GPX-H GmbH Mixer insert, static mixer and production method
US11268385B2 (en) 2019-10-07 2022-03-08 Nov Canada Ulc Hybrid core progressive cavity pump
US11813580B2 (en) * 2020-09-02 2023-11-14 Nov Canada Ulc Static mixer suitable for additive manufacturing
USD966799S1 (en) 2020-09-04 2022-10-18 Rich Products Corporation Whipped product dispenser
USD992691S1 (en) * 2020-12-18 2023-07-18 Commonwealth Scientific And Industrial Research Organisation Static mixer
USD1008417S1 (en) * 2020-12-18 2023-12-19 Commonwealth Scientific And Industrial Research Organisation Static mixer
USD1008418S1 (en) * 2020-12-18 2023-12-19 Commonwealth Scientific And Industrial Research Organisation Static mixer
USD1009221S1 (en) * 2020-12-18 2023-12-26 Commonwealth Scientific And Industrial Research Organisation Static mixer
USD1009216S1 (en) * 2020-12-18 2023-12-26 Commonwealth Scientific And Industrial Research Organisation Static mixer
USD1009222S1 (en) * 2020-12-18 2023-12-26 Commonwealth Scientific And Industrial Research Organisation Static mixer
USD1008485S1 (en) * 2020-12-18 2023-12-19 Commonwealth Scientific And Industrial Research Organisation Static mixer

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062524A (en) * 1973-06-06 1977-12-13 Bayer Aktiengesellschaft Apparatus for the static mixing of fluid streams
DE2522106C3 (en) 1975-05-17 1982-04-15 Bayer Ag, 5090 Leverkusen Device for the continuous mixing of flowable substances and method for producing a mixing insert
CH642564A5 (en) 1979-10-26 1984-04-30 Sulzer Ag STATIC MIXING DEVICE.
US5435061A (en) * 1992-02-24 1995-07-25 Koch Engineering Company, Inc. Method of manufacturing a static mixing unit
EP0646408B1 (en) * 1993-10-05 1999-12-01 Sulzer Chemtech AG Device for homogenising very viscous liquids
CN2234817Y (en) * 1995-10-31 1996-09-11 倪新宇 Unit combined static mixer
US6027241A (en) * 1999-04-30 2000-02-22 Komax Systems, Inc. Multi viscosity mixing apparatus
ES2297222T3 (en) * 2002-07-15 2008-05-01 Sulzer Chemtech Ag SET OF CROSSED ELEMENTS AND METHOD OF BUILDING IT.
CA2442780C (en) * 2002-12-13 2007-12-11 Sulzer Chemtech Ag A static mixer for high-viscosity media
EP1815904B1 (en) * 2006-02-07 2010-04-28 Stamixco AG Mixing element for static mixer, static mixer and method of production of such a mixing element
ATE470498T1 (en) 2006-03-24 2010-06-15 Stamixco Ag STATIC MIXER AND METHOD FOR PRODUCING SAME
EP2011562A1 (en) 2007-07-06 2009-01-07 StaMixCo Technology AG Mixer insert, static mixing device and method for manufacturing a static mixer insert
ES2360063T3 (en) * 2008-06-13 2011-05-31 Nordson Corporation STATIC MIXER.
CH699958A1 (en) * 2008-11-27 2010-05-31 Medmix Systems Ag A static mixer.
US9242214B2 (en) * 2011-10-31 2016-01-26 Nordson Corporation Reconfigurable mixing baffle for static mixer and method for making a static mixer
CA2789725C (en) * 2011-11-29 2019-08-06 Sulzer Mixpac Ag Mixing element for a static mixer
WO2014142869A1 (en) 2013-03-14 2014-09-18 Dow Global Technologies Llc Two part molded part useful as a mixer for viscous curable materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN108367258B (en) 2021-09-24
CN108367258A (en) 2018-08-03
DE102015121351A1 (en) 2017-06-08
PL3386617T3 (en) 2020-07-27
ES2793307T3 (en) 2020-11-13
US20200254401A1 (en) 2020-08-13
WO2017097860A1 (en) 2017-06-15
US10882014B2 (en) 2021-01-05
EP3386617A1 (en) 2018-10-17

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