EP1588757B1 - Mélangeur statique pour la production de mélanges durcissables de composants liquides, et son utilisation - Google Patents

Mélangeur statique pour la production de mélanges durcissables de composants liquides, et son utilisation Download PDF

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Publication number
EP1588757B1
EP1588757B1 EP05405261A EP05405261A EP1588757B1 EP 1588757 B1 EP1588757 B1 EP 1588757B1 EP 05405261 A EP05405261 A EP 05405261A EP 05405261 A EP05405261 A EP 05405261A EP 1588757 B1 EP1588757 B1 EP 1588757B1
Authority
EP
European Patent Office
Prior art keywords
mixing
static mixer
angle
accordance
filling
Prior art date
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Active
Application number
EP05405261A
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German (de)
English (en)
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EP1588757A1 (fr
Inventor
Rolf Heusser
Sandro Martino
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.)
Sulzer Chemtech AG
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Sulzer Chemtech AG
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Application filed by Sulzer Chemtech AG filed Critical Sulzer Chemtech AG
Priority to EP05405261A priority Critical patent/EP1588757B1/fr
Publication of EP1588757A1 publication Critical patent/EP1588757A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—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
    • B01F25/432—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa
    • B01F25/4321—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction with means for dividing the material flow into separate sub-flows and for repositioning and recombining these sub-flows; Cross-mixing, e.g. conducting the outer layer of the material nearer to the axis of the tube or vice-versa the subflows consisting of at least two flat layers which are recombined, e.g. using means having restriction or expansion zones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt

Definitions

  • the invention relates to a static mixer for a curing mix according to the preamble of claim 1 and a use of the mixer.
  • Static mixers are described for mixing at least two flowable components. These mixers, which are compact, provide good mixing results despite a simple, material-saving construction of their mixer structure, namely when mixing high-viscosity materials such as sealants, two-component foams or two-component adhesives.
  • the internals forming the mixer structure can be inexpensively manufactured by injection molding from thermoplastics, so that they are economically usable for a single use. Such a "disposable mixer” is mainly used for curing products, as these products are virtually impossible to clean the mixers.
  • the object of the invention is to provide an improved with respect to said disposable mixers mixer, for which results in a longer life. This object is achieved by the mixer defined in claim 1.
  • the static mixer is used for a curing mix of flowable components that react to a solidifying mass when mixed.
  • the mixer comprises an installation body produced by injection molding and a tube enclosing the installation body.
  • the mounting body has a chambering through a plurality of mixing chambers.
  • the mixing chambers are arranged behind and alongside one another along a tube axis. By oriented in the direction of the tube axis, radial longitudinal walls and transverse transverse to the tube axis transverse walls they are delimited from each other. Breakthroughs between adjacent chambers in the radial longitudinal walls provide inputs and outputs for the mix.
  • Two parallel outer longitudinal walls form in a frequently used embodiment outside of the mixing chambers.
  • the transverse wall and one of the outer longitudinal walls each enclose an angle filled with wall material, the filling of which, namely the first angular filling, spans a concave surface to the interior of the mixing chamber.
  • the "concave surface” means a surface that is not curved at any point against the interior of the mixing chamber.
  • the surface may also be planar:
  • the concave surface is concavely curved or, together with the angular edges in cross-section, forms a "concave line" which approximates the course of a concavely curved curve.
  • a small wedge-shaped angular fill gives an example of a concave surface in the sense of the second meaning.
  • a static mixer whose installation body is similar to that of the mixer according to the invention, but where the corresponding angular fillings are wedge-shaped and not concave in the sense of the meaning defined above.
  • the shape of these angular fillings is less favorable in terms of extending the service life.
  • the wedge-shaped angular fillings mean relatively large clusters of wall material. Such accumulations of material are Injection molding of the mounting body unfavorable because they have longer production cycles and thus higher production costs result.
  • the mixer structure shown in detail in FIG. 1 of the publication EP-A-0 749 776 known disposable mixer is an injection-molded body 1, which is inserted into a pipe, not shown.
  • This tube enclosing the installation body 1 has an interior with a square cross-section into which the installation body 1 fits in a form-fitting manner.
  • the installation body 1 and the sheathing tube could also be cylindrical: see Fig. 3.
  • From cartridges flowable components of a hardening mix are pressed through the tube and the mounting body 1 by means of pistons, wherein the reactive Mischgutkomponenten mixed to a solidifying mass become.
  • the installation body 1 has a chamber through a plurality of mixing chambers 2.
  • the mixing chambers 2 are arranged along a tube axis 10 behind and next to each other.
  • radial longitudinal walls 3a, 3b, 3c and 3d which are oriented in the direction of the tube axis 10, and transverse transverse to the tube axis 10 transverse walls 4a and 4b, the mixing chambers 2 are delimited from each other. Openings 5a, 5b, 5c and 5d between adjacent chambers 2 establish in the radial longitudinal walls 3a, 3b, 3c and 3d inputs and outputs for the mix.
  • First outer sides 6a of the mixing chambers 2 are formed by two parallel outer longitudinal walls 6. Between these longitudinal walls 6, the mixing chambers 2 each have a second outer side 6b, which is open and is bounded by the pipe, not shown.
  • the outer longitudinal walls 6 can also missing. In the frequently-used embodiment mentioned, the longitudinal walls 6 form the first outer sides 6a.
  • a mixing chamber 2 designed according to the invention is shown in FIG. Arrows also show the transport of the mixed material through the mixing chamber 2 there.
  • On the input side, directly at the transverse wall 4a (see FIG. 1) is the input 5a, through which a stream 12a of the mixed material enters.
  • a current 12b enters.
  • the stream 12a branches into partial streams 12ad and 12ac, which flow out through the exits 5d and 5c into adjacent mixing chambers. Accordingly, the flow 12b is branched into partial flows 12bd and 12bc which, together with the partial flows 12ad and 12ac, leave the mixing chamber 2 shown completely in FIG.
  • a field of pressure gradients is created in the mixing chamber 2.
  • the pressure gradients are most pronounced in the area of the apertures 5a, 5b, 5c and 5d, where the flow rates are greatest.
  • the flow can be thought of as a bundle of streamers.
  • the cross sections of the stream threads widen, and consequently there occur relatively low flow velocities. Accordingly, the pressure gradients are attenuated.
  • the attenuation of the pressure gradients is location-dependent. Especially in corner regions, which are located at a greater distance from the apertures 5a, 5b, 5c and 5d, the pressure gradients are very small.
  • the transverse wall 4b and the outer longitudinal wall 6 enclose an angle filled with wall material, which is indicated as a dash-dotted "tripod" in the transverse wall 4b.
  • the filling of this angle which is referred to as “first angular filling 7" biases a concave surface 7 a (according to the meaning indicated above) to the interior of the mixing chamber 2.
  • first angular filling 7 biases a concave surface 7 a (according to the meaning indicated above) to the interior of the mixing chamber 2.
  • the conditions for the occurrence of stagnation are mitigated with the first angular filling 7, which causes an extension of the service life.
  • a further measure in the form of a "second angle filling 8" additionally contributes to an extension of the service life.
  • the transverse wall 4a and the second outer side 6b enclose an angle filled with wall material, the filling of which, namely the second angular filling 8, also a concave surface 8a spans the interior of the mixing chamber 2.
  • the mode of action of this second angular filling 8 is the same as that of the first angular filling 7.
  • first and / or second angular fillings 7, 8 are formed at least partially different sizes, and each angular filling 7 or 8 is equal to or smaller than the downstream angular fillings 7 and 8 respectively.
  • the angular fillings 7, 8 should not form too large accumulations of material, as already explained above. Therefore, it is advantageous if the following applies to the first angular filling 7 (and the like for the second Angular filling 8):
  • the concave surfaces 7a or 8a are each at least approximately part of a circular cylinder.
  • the axis of this cylinder lies in a plane perpendicular to the tube axis 10 level.
  • the two Winkel Stahl 7 and 8 associated cylinder axes are aligned perpendicular to each other.
  • the concave surfaces 7a and 8a each proceed with a smooth course in flat surface parts 4a 'and 4b' of the transverse walls 4a and 4b. The same applies to transitions in planes on which the outer sides 6a and 6b of the mixing chamber 2 are located.
  • the second outer side 6b of the mixing chamber 2 is covered by the second angular filling in the region of a zone whose area is not greater than the penetration area of the entrance 5a, which adjoins the transverse wall 4a. This condition results from the geometry of the tool, which is used as a mold in the injection molding device.
  • a cylindrical mounting body of the inventive mixer which also has first and second angular fillings 7 and 8 respectively.
  • the outer longitudinal walls 6, which form the first outer sides 6a of the mixing chambers, have a circular segment-shaped cross-section.
  • the second outside 6b is curved. Accordingly, therefore, the one edge of the second angular filling 8 is curved.
  • the mixture of components which react during mixing to a solidifying mass is advantageously mixed continuously or quasi-continuously at a substantially constant or clocked varying pressure, ie pressure drop along the internals 1 of the mixer.
  • the mixing is interrupted and the mixer is replaced as soon as a dispensing of Mixture is noticeably smaller or an increase in the pressing pressure is required.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (10)

  1. Mélangeur statique pour un mélange durcissable à base de composants fluides, qui réagissent lors du mélange pour former une masse qui se durcit, lequel mélangeur comprend un corps encastré (1) fabriqué par moulage par injection et un tuyau enveloppant le corps encastré, le corps encastré présentant un compartimentage effectué par une pluralité de chambres de mélange (2), les chambres de mélange, disposées les unes derrière les autres et les unes à côté des autres le long d'un axe de tuyau (10), étant délimitées les unes par rapport aux autres par des parois longitudinales (3a, 3b, 3b, 3d) radiales, orientées en direction de l'axe de tuyau et des parois transversales (4a, 4b) disposées transversalement à l'axe du tuyau, des passages (5a, 5b, 5c, 5d) entre des parois voisines établissant des entrées et des sorties dans les parois longitudinales radiales pour le mélange et deux côtés extérieurs, s'étendant en direction de l'axe du tuyau, en particulier deux parois longitudinales (6) extérieures, formant des premiers côtés extérieurs (6a) des chambres de mélange,
    caractérisé en ce que, au moins pour une partie des chambres de mélange, côté sortie et à chaque fois une paroi transversale (4b) et un des premiers côtés extérieurs (6a) forment un angle rempli en partie avec du matériau de paroi, dont le remplissage, qualifié ci-dessous de premier remplissage d'angle (7), sous-tend une surface (7a) concave pour l'espace intérieur de la chambre de mélange, qui est incurvée de façon concave ou forme une ligne brisée concave conjointement avec les flancs d'angle en section.
  2. Mélangeur statique selon la revendication 1, caractérisé en ce que les chambres de mélange (2) ont chacune entre les deux cotés extérieurs (6a) à chaque fois un second côté extérieur (6b), qui est délimité sur des emplacements ouverts vis-à-vis du tuyau, en ce que, au moins pour une partie des chambres de mélange, côté entrée et à chaque fois, une paroi transversale (4a) et le second côté extérieur forment un angle partiellement rempli de matériau de paroi, dont le remplissage, désigné ci-dessous par second remplissage d'angle (8), sous-tend une surface (8a) concave pour l'espace intérieur de la chambre de mélange, qui est incurvée de façon concave ou forme une ligne brisée concave conjointement avec les flancs d'angle en section.
  3. Mélangeur statique selon la revendication 1 ou 2, caractérisé en ce que les surfaces (7a, 8a) concaves font place respectivement près d'une ligne limite (7b) à une partie de surface (4b') plane de la paroi transversale (4b) et cette ligne est située dans une bande médiane de la paroi transversale, cette bande occupant le tiers central de la paroi transversale sur ses côtés intérieurs.
  4. Mélangeur statique selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la surface (7a, 8a) concave fait partie d'un cylindre circulaire, dont l'axe est disposé perpendiculairement à l'axe de tuyau (10).
  5. Mélangeur statique selon la revendication 1 ou 2, caractérisé en ce que les surfaces (7a, 8a) concaves font place respectivement avec un tracé lisse à des parties de surface (4b') planes des parois transversales (4b) et/ou à des plans, sur lesquels les côtés extérieurs (6a, 6b) des chambres de mélange sont disposés.
  6. Mélangeur statique selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le second côté extérieur (6b) de la chambre de mélange (2) est recouvert par le second remplissage d'angle (8) dans le secteur d'une zone, dont la surface est aussi grande que la surface de passage de l'entrée (5a) qui est contiguë à la paroi transversale (4a).
  7. Mélangeur statique selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les premiers et/ou seconds remplissages d'angle (7, 8) sont au moins en partie de grandeurs différentes.
  8. Mélangeur statique selon la revendication 7, caractérisé en ce que chaque remplissage d'angle est aussi grand ou inférieur au remplissage d'angle correspondant et suivant en aval.
  9. Mélangeur statique selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les sections de tuyau et en conséquence celle du corps encastré (1) ont une section rectangulaire ou circulaire.
  10. Utilisation du mélangeur statique selon l'une quelconque des revendications 1 à 9 pour le mélange d'un mélange durcissable à base de composants fluides, qui réagissent lors du mélange pour former une masse qui se durcit, sachant qu'on mélange sous une pression de compression constante ou variable de façon cadencée et le mélange étant interrompu et le mélangeur étant remplacé dès qu'une augmentation de la pression de compression devient indispensable.
EP05405261A 2004-04-22 2005-03-23 Mélangeur statique pour la production de mélanges durcissables de composants liquides, et son utilisation Active EP1588757B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05405261A EP1588757B1 (fr) 2004-04-22 2005-03-23 Mélangeur statique pour la production de mélanges durcissables de composants liquides, et son utilisation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04405246 2004-04-22
EP04405246 2004-04-22
EP05405261A EP1588757B1 (fr) 2004-04-22 2005-03-23 Mélangeur statique pour la production de mélanges durcissables de composants liquides, et son utilisation

Publications (2)

Publication Number Publication Date
EP1588757A1 EP1588757A1 (fr) 2005-10-26
EP1588757B1 true EP1588757B1 (fr) 2007-08-01

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EP05405261A Active EP1588757B1 (fr) 2004-04-22 2005-03-23 Mélangeur statique pour la production de mélanges durcissables de composants liquides, et son utilisation

Country Status (9)

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US (1) US7322740B2 (fr)
EP (1) EP1588757B1 (fr)
JP (1) JP4686246B2 (fr)
CN (1) CN100478058C (fr)
AT (1) ATE368507T1 (fr)
CA (1) CA2500637C (fr)
DE (1) DE502005001119D1 (fr)
ES (1) ES2290872T3 (fr)
TW (1) TWI354577B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011050465U1 (de) 2011-06-16 2011-08-17 Vosschemie Gmbh Statischer Mischer zum Mischen von mindestens zwei fließfähigen Komponenten
EP3059006A1 (fr) 2015-02-12 2016-08-24 Nordson Corporation Hélice de mélange double coin, mélangeur statique associé et procédés de mélange
DE102017117198A1 (de) 2017-07-28 2019-01-31 3lmed GmbH Mischer
WO2019020764A1 (fr) 2017-07-28 2019-01-31 Kettenbach Gmbh & Co. Kg Mélangeur

Families Citing this family (9)

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US20040141413A1 (en) * 2002-12-06 2004-07-22 Wilhelm A. Keller Static mixer
DE202008007801U1 (de) 2007-09-19 2008-08-21 Kettenbach Gmbh & Co. Kg Behälter
US8215940B2 (en) * 2009-03-20 2012-07-10 The United States Of America As Represented By The Secretary Of The Army Layer multiplying apparatus
US7985020B2 (en) * 2009-09-25 2011-07-26 Nordson Corporation Cross flow inversion baffle for static mixer
KR101432185B1 (ko) 2012-11-14 2014-08-20 주식회사 생 4각관 판나선형 라인 믹서
WO2017083737A1 (fr) 2015-11-13 2017-05-18 Re Mixers, Inc. Mélangeur statique
US10232327B2 (en) 2016-03-03 2019-03-19 Nordson Corporation Flow inverter baffle and associated static mixer and methods of mixing
CH713229A1 (de) * 2016-12-14 2018-06-15 Streiff Felix Mischelemente mit hoher Festigkeit und Mischwirkung.
DE102019123200B4 (de) 2019-08-29 2021-12-30 Marco Systemanalyse Und Entwicklung Gmbh Vorrichtung und verfahren zum zuführen eines flüssigen mediums

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011050465U1 (de) 2011-06-16 2011-08-17 Vosschemie Gmbh Statischer Mischer zum Mischen von mindestens zwei fließfähigen Komponenten
WO2012172078A1 (fr) 2011-06-16 2012-12-20 Vosschemie Gmbh Mélangeur statique pour mélanger au moins deux composants fluides
EP3059006A1 (fr) 2015-02-12 2016-08-24 Nordson Corporation Hélice de mélange double coin, mélangeur statique associé et procédés de mélange
DE102017117198A1 (de) 2017-07-28 2019-01-31 3lmed GmbH Mischer
WO2019020764A1 (fr) 2017-07-28 2019-01-31 Kettenbach Gmbh & Co. Kg Mélangeur

Also Published As

Publication number Publication date
US7322740B2 (en) 2008-01-29
DE502005001119D1 (de) 2007-09-13
CN1695780A (zh) 2005-11-16
CA2500637A1 (fr) 2005-10-22
JP2005305436A (ja) 2005-11-04
US20050237856A1 (en) 2005-10-27
TWI354577B (en) 2011-12-21
EP1588757A1 (fr) 2005-10-26
CN100478058C (zh) 2009-04-15
JP4686246B2 (ja) 2011-05-25
ES2290872T3 (es) 2008-02-16
ATE368507T1 (de) 2007-08-15
TW200600184A (en) 2006-01-01
CA2500637C (fr) 2013-06-25

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