EP0472491B1 - Dispositif de mélange laminaire statique dispositif d'additionnement ainsi que l'application du dispositif de mélange et de l'additionnement - Google Patents

Dispositif de mélange laminaire statique dispositif d'additionnement ainsi que l'application du dispositif de mélange et de l'additionnement Download PDF

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Publication number
EP0472491B1
EP0472491B1 EP91810565A EP91810565A EP0472491B1 EP 0472491 B1 EP0472491 B1 EP 0472491B1 EP 91810565 A EP91810565 A EP 91810565A EP 91810565 A EP91810565 A EP 91810565A EP 0472491 B1 EP0472491 B1 EP 0472491B1
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EP
European Patent Office
Prior art keywords
mixer
mixing
mixing device
static
admixing
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
EP91810565A
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German (de)
English (en)
Other versions
EP0472491A1 (fr
Inventor
Markus Fleischli
Felix Streiff
Andreas Walder
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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Publication of EP0472491A1 publication Critical patent/EP0472491A1/fr
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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
    • 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
    • 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
    • B01F23/471—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt using a very viscous liquid and a liquid of low viscosity

Definitions

  • the invention relates to a static laminar mixing device for mixing media of different viscosities, to a mixing device for supplying a medium, and to the use of the mixing device and the mixing device.
  • Static laminar mixing devices are systems built from so-called static mixers, in which the flow of the media to be mixed, e.g. Liquid with liquid or liquid with gas, remains laminar.
  • Such laminar mixers are used in mixing devices for mixing e.g. Liquids of widely differing viscosities, such as those used when admixing low-viscosity, soluble additives to high-viscosity liquids.
  • the low-viscosity (low-viscosity) liquid becomes the main stream of the high-viscosity (Viscous) liquid supplied, for example, via a tube which can be arranged in front of or directly at the entrance to the mixer element and opens into the main stream of the highly viscous liquid.
  • the object of the invention is to provide laminar mixing devices which have improved mixing properties when mixing components of substantially different viscosities. This can be achieved by a laminar mixing device with the features of claim 1.
  • the mixer device has a first mixing column equipped with twelve SULZER-type SMX® DN17 mixing elements, also called a pre-mixer, and a second mixing column equipped with eighteen SULZER-type SMX® DN50 mixing elements, also called a main mixer.
  • the two mixing columns of the new mixing device according to the invention together have a length of only 1.1 m with a substantially improved, at least doubled, amount of admixture of the additive.
  • the number of mixing elements in the first mixing column should be at least four, but less than half the total number of mixing elements in the two mixing columns.
  • the new admixing device with the constricting orifice in the main flow of the highly viscous liquid and which is arranged in the region of the mouth of the feed pipe for the low-viscosity medium can achieve the maximum possible, homogeneously miscible amount of the additive or the low-viscous medium in comparison to conventional admixing devices or metering devices by up to about a third.
  • the cross section of mixing columns is practically always circular and the diameter of the likewise expediently circular orifice should generally be at most 2/3 of the diameter of the main stream, ie the mixer column.
  • a mixing device also called a metering point, can also comprise several orifices which are arranged next to one another.
  • several orifices with a feed tube for the additive would also be distributed over the cross section of the main flow.
  • the total cross section of the plurality of orifices should advantageously be less than half the cross section of the main flow. It should be noted that the flow is always laminar even in the area of the restricting orifices.
  • the performance of the new metering device to support the increased mixing performance of the mixing device is particularly effective.
  • the flow velocities in the pre-mixer and main mixer are typically in the range from one to a hundred mmsec ⁇ 1, for example from about 50 mmsec ⁇ 1 in the pre-mixer and 1 to 10 mmsec ⁇ 1 in the main mixer.
  • the static laminar mixing device for mixing media with very different viscosities has two consecutively arranged mixers with different cross sections.
  • the cross section of the first mixer is smaller.
  • the admixing device for metering the additive with a lower viscosity than the medium of the main stream has an orifice in the opening of which the nozzle opens.
  • the mixer 1 of FIG. 1A has, for example, thirty mixing elements 11 which are arranged alternately in a crosswise manner in the column 10.
  • the main viscous medium 12, for example a plastic is mixed with the low-viscosity additive 13, e.g. a mineral oil / paraffin.
  • the admixing device 1213 comprises an orifice 14 for the main flow 12, in the opening of which the nozzle 15 opens.
  • the additive 12 supplied is dissolved in the plastic and / or homogeneously distributed.
  • any other known admixer could also be provided instead of the new admixing device 1213; for example one as shown in Fig. 1B.
  • the laminar mixer device 1 'of Fig. 1B consists of the premixer 1a (the main flow experiences relatively high shear / shear rate in the order of magnitude ⁇ ⁇ 20-200 s ⁇ 1) and the main mixer 1b (the main flow experiences relatively low shear therein / Shear rate in the order of magnitude ⁇ ⁇ 1-5 s ⁇ 1), which has a larger cross-section than the premixer 1a.
  • the mixer 1a is equipped with, for example, twelve mixing elements 11a arranged crosswise.
  • the mixer Ib comprises, for example, eighteen mixer elements 11b which are likewise arranged in a crosswise manner.
  • the low-viscosity medium / additive 13 ' (eg paraffin oil) is added to the main flow 12' of the viscous medium (eg a plastic such as polystyrene) in the admixing arrangement or metering device 1213 '.
  • the viscous medium eg a plastic such as polystyrene
  • a new metering device with orifice could also be provided. It would be too conceivable to arrange a transition piece with a transition section without mixing elements between the two mixers 1a and 1b of the mixing device 1 '.
  • the additive flow 21 is fed via the nozzle 22 with the nozzle channel 220 to the main flow 23 in the region of the opening 20 of the orifice 24.
  • the additive 21 is supplied laterally to the nozzle 22, which is mounted in the web 25.
  • the nozzle channel 220 and the aperture 20 open directly into the mixer 26 with the mixing elements 27.
  • the main stream 33 of the viscous component is diverted and fed to the mixer column 36 with the mixing elements 37 via the channel 30 of the aperture 34.
  • the nozzle 32 with the nozzle channel 320 for the more fluid additive stream 31 is not angled in this example, directed in the direction of the mixer column 36.
  • the admixing device 4 of Fig. 4A and 4B has two nozzles 42 and 42 'for additive 41.
  • the main stream 430 of the higher-viscosity agent is divided into the two parallel partial main streams 43 and 43 ', which flow through the mixer 46 and 46' equipped with mixing elements 47 and 47 '.
  • the two aperture openings 40 and 40 ' are present, in which the nozzle tubes 42 and 42' open out concentrically.
  • the parallel mixer 46 and 46 'with the partial main streams 43 and 43' could, which is not shown here, form the premixer for a common main mixer of a static laminar mixing device.
  • the SULZER type SMX mixer elements are suitable as mixer elements.
  • the low-viscosity additive could also be a gas such as N2, CO2 or H2O vapor.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (8)

  1. Système mélangeur laminaire statique (1') pour mélanger des milieux de viscosité très différente, ledit système comprenant, lorsqu'on le considère dans le sens d'écoulement, un premier mélangeur statique (1a) et un second mélangeur statique (1b) dont la section dans le sens d'écoulement est supérieure à celle du premier mélangeur (1a), les deux mélangeurs étant chacun garnis d'éléments mélangeurs identiques les uns aux autres, et le nombre d'éléments mélangeurs dans le premier mélangeur (1a) étant d'au moins quatre, mais étant inférieur à la moitié du nombre total d'éléments mélangeurs dans les deux mélangeurs, et comprenant un dispositif d'adjonction (1213) qui est implanté devant l'entrée ou à l'entrée du premier mélangeur (1a) et qui sert à introduire un milieu de faible viscosité (13) dans le courant du milieu de plus grande viscosité (12).
  2. Système mélangeur laminaire statique (1') selon la revendication 1, dans lequel le rapport entre la section du premier mélangeur (1a) et la section du second mélangeur (1b) est inférieur ou égal à un sur deux (rapport V ≦ 1:2)
  3. Système mélangeur laminaire statique (1') selon la revendication 1 ou 2, dans lequel le premier mélangeur (1a) est constitué de plusieurs colonnes de mélange (46, 46') disposées parallèlement.
  4. Système mélangeur laminaire statique (1') selon l'une des revendications 1 et 2, comprenant un dispositif d'adjonction (1213) destiné à être disposé dans le courant (12) d'un premier milieu, devant ou dans le mélangeur laminaire statique (1a), comprenant un diaphragme de rétrécissement (14) qui se trouve dans le courant (12) du premier milieu et qui est disposé dans la zone d'entrée de la conduite d'alimentation en second milieu (13) dans le courant (12) du premier milieu.
  5. Système mélangeur laminaire statique (1') selon la revendication 4, dans lequel l'ouverture du diaphragme (14) du dispositif d'adjonction (1213) présente une section au plus égale à la moitié de la section du courant (12) du premier milieu avant le diaphragme.
  6. Système mélangeur laminaire statique (1') selon la revendication 4 ou 5, dans lequel le dispositif d'adjonction comporte un diaphragme (44) pourvu de plusieurs ouvertures (40, 40').
  7. Utilisation d'un système mélangeur laminaire (1') selon l'une des revendications 1 à 6 pour mélanger des liquides présentant une différence de viscosité de l'ordre de 5 x 10² à 10⁷.
  8. Utilisation d'un système mélangeur laminaire (1') selon l'une des revendications 1 à 6 pour ajouter de l'huile minérale dans du polystyrène en fusion.
EP91810565A 1990-08-23 1991-07-12 Dispositif de mélange laminaire statique dispositif d'additionnement ainsi que l'application du dispositif de mélange et de l'additionnement Expired - Lifetime EP0472491B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH274390 1990-08-23
CH2743/90 1990-08-23

Publications (2)

Publication Number Publication Date
EP0472491A1 EP0472491A1 (fr) 1992-02-26
EP0472491B1 true EP0472491B1 (fr) 1995-02-22

Family

ID=4240616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810565A Expired - Lifetime EP0472491B1 (fr) 1990-08-23 1991-07-12 Dispositif de mélange laminaire statique dispositif d'additionnement ainsi que l'application du dispositif de mélange et de l'additionnement

Country Status (7)

Country Link
US (2) US6419386B1 (fr)
EP (1) EP0472491B1 (fr)
JP (1) JP3187462B2 (fr)
CA (1) CA2047599C (fr)
DE (1) DE59104667D1 (fr)
ES (1) ES2068558T3 (fr)
FI (1) FI95663C (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19524182A1 (de) * 1995-07-03 1997-01-09 Basf Ag Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Polymeren
ATE190242T1 (de) * 1995-10-05 2000-03-15 Sulzer Chemtech Ag Mischeinrichtung zum mischen eines niedrigviskosen fluids in ein hochviskoses fluid
US6405759B1 (en) * 1997-08-05 2002-06-18 Owens Corning Composites Sprl Apparatus for the continuous preparation of glass fiber sizing compositions
DE50107866D1 (de) * 2000-02-17 2005-12-08 Sulzer Chemtech Ag Winterthur Statischer Mischer
JP2002189106A (ja) * 2000-12-20 2002-07-05 Dainippon Printing Co Ltd 防眩性フィルムおよびその製造方法、ならびに防眩性フィルムを用いた表示装置
JP2004536904A (ja) 2001-06-01 2004-12-09 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 非常に異なる粘度の流体をブレンドするための方法
CN100374188C (zh) * 2001-06-01 2008-03-12 纳幕尔杜邦公司 用于混合粘度差别很大的流体的方法
US7199242B2 (en) 2001-08-02 2007-04-03 Lg Life Sciences Limited Processes for the production of amino-protected derivatives of 4-aminomethylene-pyrrolidin-3-one and/or 4-aminomethylene-pyrrolidin-3-alkoxyimino derivatives and/or gemifloxacin or a salt thereof
NO318636B1 (no) * 2002-02-08 2005-04-18 Norsk Hydro As Anordning for transformasjon av gass-/vaeskestrom til lagdelt strom
FR2843966A1 (fr) * 2002-08-30 2004-03-05 Bp Chem Int Ltd Procede et appareillage pour degazer un polymere
US7351749B2 (en) * 2002-12-16 2008-04-01 Unilever Home & Personal Care Usa, Division Of Conopco, Inc. Process for manufacture of personal care products utilizing a concentrate water phase
TWI351306B (en) 2003-05-16 2011-11-01 Sulzer Chemtech Ag Method of mass transfer of a material or heat
EP1510247B1 (fr) * 2003-08-26 2008-04-30 Sulzer Chemtech AG Mélangeur statique avec une structure polymorphe
US7081233B2 (en) * 2004-05-18 2006-07-25 Dynamax Engineering Ltd. Method and apparatus for degassing liquid sulfur
DE602004015128D1 (de) 2004-12-17 2008-08-28 Borealis Tech Oy Verfahren zur Polymerisation von Olefinen in Gegenwart eines Olefin Polymerisationskatalysators
EP2235144B1 (fr) * 2008-01-22 2018-09-26 Basf Se Production de mélanges d'additifs
WO2009093604A1 (fr) * 2008-01-24 2009-07-30 National Institute Of Advanced Industrial Science And Technology Procédé et dispositif pour la fabrication d'un nanotube organique
DE102010039700A1 (de) * 2010-08-24 2012-03-01 Bayer Technology Services Gmbh Vorrichtung und Verfahren zur Gasdispergierung
US9174362B2 (en) 2011-07-12 2015-11-03 Castagra Products, Inc. Solvent-free plural component spraying system and method
EP2735604A1 (fr) * 2012-11-22 2014-05-28 Castrol Limited Procédé de préparation d'une composition de lubrifiant
EP3241611B1 (fr) 2016-05-02 2020-03-04 Borealis AG Procédé d'alimentation d'un catalyseur de polymérisation
AU2017291680B2 (en) 2016-07-05 2022-12-22 Ineos Americas, Llc Method and apparatus for recovering absorbing agents in acid gas treatment
CN112742232B (zh) * 2019-10-29 2023-04-18 中国石油化工股份有限公司 一种喷氨静态混合器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770208A (en) * 1970-11-23 1973-11-06 Ethyl Corp Mixing nozzle
DE2315114B2 (de) * 1973-03-27 1979-08-23 Basf Ag, 6700 Ludwigshafen Verfahren zum Mischen von flüssigen Stoffen mit hohen Viskositätsunterschieden
BE798607A (fr) * 1973-04-24 1973-10-24 Popov Vitaly F Melangeur de gaz et/ou de liquides a ejecteur
US4008072A (en) * 1974-09-16 1977-02-15 The Anaconda Company Sulfidization reaction
FR2412627A1 (fr) * 1977-12-22 1979-07-20 Rhone Poulenc Textile Procede et dispositif pour l'obtention de fils a double constituant
US4255125A (en) * 1978-12-15 1981-03-10 Exxon Research & Engineering Co. Mixing apparatus and the uses thereof
JPS5939174B2 (ja) * 1982-02-01 1984-09-21 名友産業株式会社 流体混合装置
FR2548043A1 (fr) * 1983-06-14 1985-01-04 Saint Gobain Vitrage Procede et dispositif pour la fabrication par coulee d'une couche optiquement homogene transparente a partir d'un melange de composants
GB8604673D0 (en) * 1986-02-25 1986-04-03 Shaw Co Manchester Ltd Francis Treating viscous material
US4861165A (en) * 1986-08-20 1989-08-29 Beloit Corporation Method of and means for hydrodynamic mixing
JPS6434427A (en) * 1987-07-30 1989-02-03 Tanaka Shokuhin Kikai Kk Method for mixing fluids having different viscosity
US5044558A (en) * 1989-05-09 1991-09-03 Halliburton Company Burner nozzle with replaceable air jetting assembly

Also Published As

Publication number Publication date
FI95663B (fi) 1995-11-30
FI95663C (fi) 1996-03-11
JPH0687120A (ja) 1994-03-29
US6428200B1 (en) 2002-08-06
FI913934A (fi) 1992-02-24
ES2068558T3 (es) 1995-04-16
US6419386B1 (en) 2002-07-16
JP3187462B2 (ja) 2001-07-11
CA2047599C (fr) 2003-09-23
EP0472491A1 (fr) 1992-02-26
FI913934A0 (fi) 1991-08-20
DE59104667D1 (de) 1995-03-30
CA2047599A1 (fr) 1992-02-24

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