EP0980703B1 - Mélangeur statique - Google Patents

Mélangeur statique Download PDF

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Publication number
EP0980703B1
EP0980703B1 EP99115110A EP99115110A EP0980703B1 EP 0980703 B1 EP0980703 B1 EP 0980703B1 EP 99115110 A EP99115110 A EP 99115110A EP 99115110 A EP99115110 A EP 99115110A EP 0980703 B1 EP0980703 B1 EP 0980703B1
Authority
EP
European Patent Office
Prior art keywords
bars
heat transfer
static mixer
ducts
mixer insert
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99115110A
Other languages
German (de)
English (en)
Other versions
EP0980703A1 (fr
Inventor
Heinrich Schuchardt
Klemens Dr. Kohlgrüber
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.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0980703A1 publication Critical patent/EP0980703A1/fr
Application granted granted Critical
Publication of EP0980703B1 publication Critical patent/EP0980703B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0058—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having different orientations to each other or crossing the conduit for the other heat exchange medium
    • 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
    • B01F35/90—Heating or cooling systems
    • B01F35/93—Heating or cooling systems arranged inside the receptacle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
    • F28F7/02—Blocks traversed by passages for heat-exchange media

Definitions

  • Static mixers are often used to mix liquids: One The pump presses the liquid through a static mixer built-in Pipe, the liquid being sheared at the mixer and divided into partial flows that are to be mixed together.
  • Kenics mixers With the so-called Kenics mixers (see “Mixing during manufacture and processing von Kunststoffe ", publisher VDI Ges. Kunststofftechnik, VDI publishing house 1986, pp. 238-241) the liquid flow of the mixed material through a in the tube built-in divider divided into partial flows. This divider is around that Tube axis twisted. A vortex-shaped is created in each of the partial flows of the liquid Flow leading to redistribution of the liquid in the cross section of the pipe leads.
  • several such mixing elements are arranged one behind the other, to divide the liquid again and again and a sufficient mixing result to achieve.
  • the pressure stability of these mixers against highly viscous fluids is however comparatively small.
  • SMX mixers consist of two or more mutually perpendicular grids of parallel sheet metal strips, the are welded together at their crossing points and at an angle are set against the main flow direction of the mixture to the liquid to be able to divide and mix.
  • the manufacturing effort for these mixers is because of the many welded joints to be made relatively high.
  • Heat exchangers typically take place at a very low Reynolds number. If, for example, smooth pipes are used for heat exchange, one is against Zero Reynolds number the heat exchange rate extremely low and on the part of the For a given throughput, the heat exchanger essentially only depends on the pipe length used. A significant improvement in heat exchange is then possible by combining the tubular heat exchanger with a static one Mixing device.
  • the object of the invention is to provide a static mixer that can be cooled or is heatable and can be produced in a comparatively simple manner.
  • the invention relates to a static mixer insert, consisting at least from two or more layers arranged side by side, in particular to each other parallel webs, the webs being adjacent layers of webs cross and the webs are connected to each other at the crossing points characterized in that the web positions at their crossing points of heat transfer channels are crossed.
  • the heat transfer channels preferably run at an angle alpha 60 60 ° to Level of the jetty.
  • the heat transfer channels can be separated into individual supply lines and outlets Heat transfer medium open.
  • a preferred variant of the static mixer insert is designed so that the Webs are at least partially designed as hollow webs, the additional channels for have a heat transfer medium.
  • the webs are in a preferred embodiment of the mixer to the main flow direction of the mix at an angle, in particular from 30 to 50 ° or from -30 up to -50 °, which ensures a good division of the mix flow into partial flows is effected.
  • the heat transfer channels are or the channels that run through the hollow webs meandering at their entrances and exits connected with each other. This creates a composite of heat transfer lines created that only a few supply and discharge lines for the heat transfer medium having.
  • the invention also relates to a static mixer insert, consisting at least of two or more layers of juxtaposed, in particular webs parallel to one another, in particular with a rectangular cross section, with cross the webs of adjacent layers of webs and the webs on the Junction points are interconnected, characterized in that the Bridges are designed as hollow webs, which have channels for a heat transfer medium.
  • the mixer insert is not on the Crossing points penetrated by additional heat transfer channels through the Jetty runs.
  • the heat transfer channels can also be used with this form of static mixer use lead into individual supply lines and discharge lines for a heat transfer medium.
  • the webs of this design which are only equipped with hollow webs as channels is to the main direction of flow of the mixture by an angle, in particular from 30 to 50 ° or from -30 to -50 °.
  • the heat transfer channels of this static mixer insert can also be meandering be connected at their entrances and exits.
  • Another object of the invention is a static mixer consisting of at least one of the mixer inserts according to the invention mentioned and an inner housing, that encloses the mixer insert and in the openings for the supply line and derivation of the heat transfer medium either to the crossing the web layers Heat transfer channels or to the channels running along the webs or to both are provided.
  • the heat transfer channels or the channels of the hollow webs are preferably directly connected to the Openings in the inner housing are connected;
  • a particularly preferred static mixer is constructed so that the inner housing is still enclosed by an additional outer housing, the at least one Has inlet connection and an outlet connection for the heat transfer medium and with the inner housing an inlet space and an outlet space for the heat transfer medium forms and has an inlet and an outlet for the mix.
  • mixer inserts arranged one above the other in the inner housing and adjacent mixer inserts are each other about their central axis twisted arranged.
  • the structure of the static mixer element according to the invention and of the invention static mixer allows this by injection molding one Manufacture workpiece, from the webs and from the heat transfer channels pierced inner case walls by adding sliders in the injection mold create the spaces between the webs and the heat transfer channels.
  • This workpiece can either be itself in an outer housing, e.g. a pipeline, be installed or serve as a lost model for the investment casting.
  • each web of a web position ends up to a maximum a web only at one end of the web on an inner housing wall, while the shows other end in the product stream.
  • This design enables injection molding to spray all inner housing walls together with the webs, as all Spaces between the webs are accessible to sliders. This will make the Joining effort to complete mixer reduced
  • a manufacturing process is particularly preferred, in which a primary molding process, the part of the inner housing walls that the Is penetrated heat transfer channels, is produced with.
  • the heat transfer from the heat transfer medium to the mix improves because the Heat conduction paths from the heat transfer medium to the product can be shortened.
  • the described heatable or coolable static mixer not only applied there be where static mixing is required, but can be done from a cost perspective other heat exchangers, e.g. Shell and tube heat exchangers as Capacitors, replace.
  • FIGS 1a to c show a view of the invention from different views Mixer.
  • the outer housing is only shown schematically.
  • the mixer consists of an outer housing 1 with product inlet 2, product outlet 3 and inlet nozzle 4, 6 and outlet nozzle 5, 7 for the heating / cooling medium and the mixer inserts 8, 10 with inner housing 11,
  • the internals shown in FIG. 2 are located inside the mixer each made of 90 ° rotated against each other, stacked mixing elements 8, 10, which are separated from one another by separating plates 9 on the temperature medium side to control the flow direction of the temperature control medium. With others Arrangement of the dividers can reduce the number of heating / cooling medium nozzles are accepting a higher pressure drop.
  • Figures 3a to c show a mixing element (8) from different views. It consists of the inner housing section 300 and alternating layers of parallel Ridges 301 to 306 or 311 to 317 (in part only recognizable in section in Figure 4). The Bars of two successive layers of bars intersect under one Angle of 90 ° and have an angle of 45 ° to the product flow direction.
  • the webs are hollow and have heating / cooling channels 362 to 367 and 371 to 377 (Fig. 4). In order to achieve a flow through the channels, these are through the Layers crossing the webs connecting channels 380, 381, 390, 391, 392 with each other connected (see the section in Fig. 4). From each landing 301 to 306, 311 to 317 only one web 304 or 314 extends from one housing inner wall to the opposite Interior wall. All other webs have a free end.
  • Figure 5 shows an alternative structure of a mixing element, as in an inventive Mixer can be used.
  • On the heating / cooling channels along the Bridges have been dispensed with in favor of simple production, but that is enough Layers of the cross-over cooling channels 580 to 592 through the inner housing of the Mixing element.
  • Such a mixing element is particularly suitable for highly viscous products which have the main thermal resistance on the product side and the additional one Thermal resistance due to heat conduction in the now solid webs does not ins Weight drops.
  • Figure 6 shows a section through the mixing element of Fig. 5 analogous to the section A-A from Figure 3b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Accessories For Mixers (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Claims (16)

  1. Insert de mélangeur statique (8; 10) constitué par au moins deux ou plusieurs couches (a);(b), disposées côte-à-côte, de barrettes (501, 502, 503, 504) et (511, 512, 513, 514), notamment parallèles entre elles, les barrettes de couches respectivement voisines (a);(b) de barrettes (501, 502, 503, 504) ou (511, 512, 513, 514) se croisant et les barrettes (501, 502, 503, 504) et (511, 512, 513, 514) étant reliées entre elles au niveau des points de croisement, caractérisé en ce que les couches (a);(b) de barrettes sont traversées, au niveau des points de croisement (320), par des canaux (580, 581, 590, 591, 592) pour fluide caloporteur.
  2. Insert de mélangeur statique selon la revendication 1, caractérisé en ce que les canaux (580, 581, 590, 591, 592) pour fluide caloporteur débouchent dans différentes canalisations d'amenée et dans différentes canalisations de départ pour un fluide caloporteur.
  3. Insert de mélangeur statique selon la revendication 1 ou 2, caractérisé en ce que les barrettes (501, 502, 503, 504) et (511, 512, 513, 514) sont réalisées au moins en partie sous la forme de barrettes creuses (301, 302, 303, 304, 305, 306, 311, 312, 313, 314, 315, 316, 317), qui comportent des canaux supplémentaires (362, 363, 366, 371, 372, 373, 374, 375, 376, 377) pour un fluide caloporteur.
  4. Insert de mélangeur statique selon l'une des revendications 1 à 3, caractérisé en ce que les barrettes (501, 502, 503, 504) et (511, 512, 513, 514) sont agencées sous la forme de barrettes rectilignes.
  5. Insert de mélangeur statique selon la revendication 4, caractérisé en ce que les barrettes (501, 502, 503, 504) ou (511, 512, 513, 514) sont inclinées d'un angle compris notamment entre 30 et 50° ou entre -30 et -50° par rapport à la direction d'écoulement principale de la matière mélangée.
  6. Insert de mélangeur statique selon l'une des revendications 1 à 5, caractérisé en ce que les canaux (580, 581, 590, 591, 592) pour fluide caloporteur ou les canaux (362, 363, 364, 366) sont reliés entre eux avec une forme sinueuse, au niveau de leurs entrées et de leurs sorties.
  7. Insert de mélangeur statique (8; 10) constitué par au moins deux ou plusieurs couches (a;b), disposées côte-à-côte de barrettes (501, 502, 503, 504) et (511, 512, 513, 514), notamment parallèles entre elles, les barrettes de couches respectivement voisines (a);(b) de barrettes (501, 502, 503, 504) ou (511, 512, 513, 514), possédant notamment une section transversale rectangulaire, étant reliées entre elles au niveau des points de croisement, caractérisé en ce que les barrettes (501, 502, 503, 504) et (511, 512, 513, 514) sont agencées sous la forme de barrettes creuses, qui comportent des canaux (362, 364, 355 et 366) pour un fluide caloporteur.
  8. Insert de mélangeur statique selon la revendication 7, caractérisé en ce que les canaux (362, 364, 365, 366) débouchent dans différentes canalisations d'amenée et dans différentes canalisations de départ pour un fluide caloporteur.
  9. Insert de mélangeur statique selon l'une des revendications 7 ou 8, caractérisé en ce que les barrettes (501, 502, 503, 504) et (511, 512, 513, 514) sont agencées sous la forme de barrettes rectilignes.
  10. Insert de mélangeur statique selon la revendication 9, caractérisé en ce que les barrettes (501, 502, 503, 504) ou (511, 512, 513, 514) sont inclinées d'un angle compris notamment entre 30 et 50° ou entre -30 et -50° par rapport à la direction d'écoulement principale de la matière mélangée.
  11. Insert de mélangeur statique selon l'une des revendications 7 à 10, caractérisé en ce que les canaux (580, 581, 590, 591, 592) pour le fluide caloporteur ou les canaux (362, 363, 364, 366) sont reliés entre eux avec une forme sinueuse, au niveau de leurs entrées et de leurs sorties.
  12. Mélangeur statique, constitué notamment par un insert de mélangeur (8; 10) selon l'une des revendications 1 à 11 et un boítier intérieur (11), qui entoure l'insert de mélangeur (8; 10) et dans lequel sont prévus des orifices pour la canalisation d'amenée et la canalisation de départ du fluide caloporteur en direction des canaux (580, 581, 590, 591, 592) pour le fluide caloporteur ou des canaux (362, 364, 365, 366).
  13. Mélangeur statique selon la revendication 12, caractérisé en ce que les canaux (580, 581, 590, 591, 592) pour le fluide caloporteur ou les canaux (362, 364, 365, 366) sont reliés directement aux ouvertures du boítier intérieur.
  14. Mélangeur statique selon la revendication 12 ou 13, caractérisé en ce que le boítier intérieur (11) est entouré par un boítier extérieur supplémentaire (1), qui comporte au moins une tubulure d'entrée (4, 6) et une tubulure de sortie (5, 7) pour le fluide caloporteur et forme, avec le boítier intérieur (11) une chambre d'entrée (12) et une chambre de sortie (13) pour fluide caloporteur et comporte une entrée (2) et une sortie (3) pour le milieu mélangé.
  15. Mélangeur statique selon l'une des revendications 12 à 14, caractérisé en ce que plusieurs inserts de mélangeur (8, 10) sont disposés en étant superposés dans le boítier intérieur, et des inserts de mélangeur voisins (8, 10) sont disposés en étant pivotés les uns par rapport aux autres autour de leur axe médian.
  16. Mélangeur statique selon l'une des revendications 12 à 15, caractérisé en ce que chaque couche de barrettes se termine, hormis au maximum une barrette, uniquement à une extrémité de la barrette au niveau d'une paroi du boítier intérieur.
EP99115110A 1998-08-20 1999-08-09 Mélangeur statique Expired - Lifetime EP0980703B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19837671A DE19837671A1 (de) 1998-08-20 1998-08-20 Statischer Mischer
DE19837671 1998-08-20

Publications (2)

Publication Number Publication Date
EP0980703A1 EP0980703A1 (fr) 2000-02-23
EP0980703B1 true EP0980703B1 (fr) 2003-05-14

Family

ID=7878058

Family Applications (1)

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EP99115110A Expired - Lifetime EP0980703B1 (fr) 1998-08-20 1999-08-09 Mélangeur statique

Country Status (5)

Country Link
US (1) US6412975B1 (fr)
EP (1) EP0980703B1 (fr)
JP (1) JP4074413B2 (fr)
CA (1) CA2280469C (fr)
DE (2) DE19837671A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1125625A2 (fr) 2000-02-18 2001-08-22 Schröder & Boos, Misch- und Anlagentechnik GmbH & Co. KG Homogénisateur

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10005457A1 (de) * 2000-02-08 2001-08-09 Bayer Ag Statischer Mischer
JP2003181256A (ja) * 2001-12-17 2003-07-02 Art Ceramic Kk 静止型混合器及びその静止型混合器用部品
DE10233506B4 (de) * 2002-07-24 2004-12-09 Bayer Technology Services Gmbh Mischer/Wärmeaustauscher
US8316649B2 (en) * 2007-01-12 2012-11-27 Superior Quilting Ltd. Thermal controlled pillow
TWI404903B (zh) * 2007-03-09 2013-08-11 Sulzer Chemtech Ag 用於流體媒介物熱交換及混合處理之設備
DE102009033661A1 (de) 2009-07-17 2011-01-20 Bayer Technology Services Gmbh Wärmeübertragermodul und Wärmeübertrager in kompakter Bauweise
US9777973B2 (en) * 2013-09-20 2017-10-03 Promix Solutions Ag Device for mixing and heat exchange
US20150087733A1 (en) 2013-09-20 2015-03-26 Rolf Heusser Method for the Manufacture of Foams of Low Density
EP3374070B1 (fr) 2015-11-13 2023-08-09 Re Mixers, Inc. Mélangeur statique
US9839883B2 (en) * 2016-03-18 2017-12-12 Komax Systems, Inc. Channel mixing apparatus
EP3822569B1 (fr) * 2019-11-14 2023-06-07 Promix Solutions AG Echangeur de chaleur
US20210293483A1 (en) * 2020-03-23 2021-09-23 General Electric Company Multifurcating heat exchanger with independent baffles
EP4089357A1 (fr) * 2021-05-10 2022-11-16 Promix Solutions AG Echangeur de chaleur
EP4453055A1 (fr) 2021-12-20 2024-10-30 BASF Coatings GmbH Procédé de production en continu de dispersions aqueuses de polyuréthane

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1125625A2 (fr) 2000-02-18 2001-08-22 Schröder & Boos, Misch- und Anlagentechnik GmbH & Co. KG Homogénisateur

Also Published As

Publication number Publication date
EP0980703A1 (fr) 2000-02-23
JP2000135424A (ja) 2000-05-16
DE59905535D1 (de) 2003-06-18
JP4074413B2 (ja) 2008-04-09
DE19837671A1 (de) 2000-02-24
CA2280469A1 (fr) 2000-02-20
CA2280469C (fr) 2006-10-24
US6412975B1 (en) 2002-07-02

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