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EP0749776A1 - Mélangeur avec corps en forme de tube - Google Patents

Mélangeur avec corps en forme de tube Download PDF

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Publication number
EP0749776A1
EP0749776A1 EP95810418A EP95810418A EP0749776A1 EP 0749776 A1 EP0749776 A1 EP 0749776A1 EP 95810418 A EP95810418 A EP 95810418A EP 95810418 A EP95810418 A EP 95810418A EP 0749776 A1 EP0749776 A1 EP 0749776A1
Authority
EP
European Patent Office
Prior art keywords
mixer according
mixer
mixing
elements
separating webs
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.)
Granted
Application number
EP95810418A
Other languages
German (de)
English (en)
Other versions
EP0749776B1 (fr
Inventor
Felix Streiff
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
Original Assignee
Sulzer Chemtech 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8221764&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0749776(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sulzer Chemtech AG filed Critical Sulzer Chemtech AG
Priority to AT95810418T priority Critical patent/ATE198839T1/de
Priority to EP95810418A priority patent/EP0749776B1/fr
Priority to DE29522199U priority patent/DE29522199U1/de
Priority to DE59508992T priority patent/DE59508992D1/de
Priority to ES95810418T priority patent/ES2155509T3/es
Priority to TW085105453A priority patent/TW315314B/zh
Priority to CA002178065A priority patent/CA2178065C/fr
Priority to US08/660,434 priority patent/US5944419A/en
Priority to KR1019960020691A priority patent/KR100420822B1/ko
Priority to CN96111003A priority patent/CN1052171C/zh
Priority to BR9602858A priority patent/BR9602858A/pt
Priority to JP15997396A priority patent/JP4283901B2/ja
Publication of EP0749776A1 publication Critical patent/EP0749776A1/fr
Publication of EP0749776B1 publication Critical patent/EP0749776B1/fr
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a mixer which is arranged in a tube and which comprises at least one mixing element or a mixing body. It also relates to uses of such a mixer.
  • a mixer is known from US Pat. No. 3,051,453, which is composed of a linear arrangement of mixing elements, which are referred to below as "multiflux mixing bodies".
  • This multiflux mixing body the cross section of which is square, has two channels which continuously narrow in the direction of flow up to the center of the mixing body and continuously expand behind the narrowest point in a plane rotated by 90 °.
  • a medium flowing through the mixing body undergoes a deformation by which the number of partial layers doubles.
  • the Multiflux mixing body can be made up of four wedge-shaped partial bodies and two build up triangular plates.
  • the wedges have the shape of a halved cube, which is halved along the diagonal of one side surface. Two of the wedges - one rotated 90 ° relative to the other - each form a coherent part. The two plates form partitions between the two channels of the mixing body.
  • the partial bodies take up a volume that is 25 to 30% of the tube volume assigned to the mixing body.
  • ISG Interfacial Surface Generator
  • the known Multiflux and ISG mixing bodies require a relatively large amount of material for their production, the volume of which takes up at least 25 to 30% of the tube volume.
  • the lengths of the mixing bodies in the direction of flow are relatively long, namely approximately the same size as the pipe diameter.
  • This object is achieved with the features mentioned in claim 1.
  • the empty volume is greater than 80 to 90%; and thus the material requirement is significantly lower.
  • the mixing element of the mixer according to the invention can be considerably shorter, namely at least half as long comparable effect as with the known mixing bodies.
  • a mixer with a plurality of such mixing elements is defined in claim 2.
  • the dependent claims 3 to 18 relate to advantageous embodiments of the mixer according to the invention.
  • Claims 19 and 20 relate to uses of the mixers.
  • the mixer according to the invention has mixing elements with a particularly simple shape. Thanks to this shape, a monolithic mixing body, which comprises a series of several mixing elements connected in series, can be easily produced by injection molding from plastic or investment casting (steel), whereby two-part tools can be used in particular in the simplest embodiment (two-hole variant).
  • the mixing bodies according to the invention can also be produced in a simple manner, for example from sheet metal.
  • the mixer according to the invention is less expensive than the known static mixers: two flowable media of similar viscosity can be homogeneously mixed over a distance (L) of less than ten pipe diameters (D).
  • the mixer according to the invention has no channels with confuser and diffuser-like sections or bores. Trials have shown that simple disks with holes and dividers, which are arranged on the discs, deliver a surprisingly good mixing quality. Effects that were to be expected due to the lack of confuser-like and diffuser-like sections proved to be practically without any disturbing influence with regard to the mixing quality.
  • Pipes of any cross section can be provided for the mixer according to the invention; however, square or circular cross sections are preferred.
  • the Multiflux mixer is surpassed in the specific effects by the tested mixers.
  • the mixing elements 1 and 1 'of FIG. 1 arranged in a tube 10 each consist of two separating webs 2 and 2' and two deflection disks 3 and 3 ', respectively, in a plane 3a and 3a' indicated by dash-dotted lines. lie.
  • the plane 3a lies perpendicular to the pipe axis 5 and parallel to planes 2a and 2b, which touch the upper edge 20 or the lower edge 21 of the separating webs 2.
  • the three levels 2a, 3a and 2b delimit two sections 1a and 1b of the mixing element 1.
  • Each section is assigned a separating web 2 which divides the section.
  • the separating webs 2 of the two sections 1a and 1b intersect at a right angle.
  • the pipe cross section is divided by the separating webs 2 into four parts of the same size, two of these parts being covered by the deflection plates 3.
  • the open partial areas are provided as constrictions and through holes 4 for the medium to be mixed.
  • the two successive mixing elements 1 and 1 ' are constructed essentially the same. But the mixing element 1 represents the mirror image of the mixing element 1 '.
  • the adjacent dividers 2 and 2' intersect; the open partial areas 4 and 4 'are arranged offset from one another.
  • the deflection disks 3 can also form an angle ⁇ with the cross-sectional plane 3a - see FIG. 2. This angle ⁇ is advantageously chosen not to be greater than 30 °.
  • Figures 3 and 4 show further embodiments with inclined surfaces. If the axis 5 is understood as a vertical, the arrow 6 in FIGS. 2 to 4 each represents the falling line of a deflection disk 3. In FIG. 2, this arrow 6 is parallel to the upper one Separator 2. In the exemplary embodiment in FIG. 3, the arrow 6 is tangential to a circular cylinder which is concentric with the axis 5. In the embodiment of Figure 4, the arrow 6 is directed radially outwards.
  • FIGS. 5a and 5b show mixing elements 1 and 1 ', in each of which two separating webs 2 are assigned to a section 1a and 1b (not shown in these figures).
  • Exactly one open partial area 4 is arranged on both sides of each separating web 2.
  • the mixing element 1 'with the open partial areas 4' represents an immediately adjacent element of the mixing element 1.
  • the open partial areas 4 and 4 ' are arranged offset from one another.
  • the shapes of the two mixing elements 1 and 1 ' are identical and are not mirror images as in the two-hole variant (FIG. 1).
  • the elements can be divided into two halves.
  • the boundaries between the half-elements are indicated in FIGS. 5a and 5b as dash-dotted lines 7 and 7 ', respectively.
  • Monolithic partial bodies, each comprising a series of such half-elements, can be produced in a simple manner with two-part tools.
  • the entire mixing body is obtained by joining two monolithic partial bodies.
  • the flow path of the medium to be mixed is additionally indicated by arrows 8, 8 'and 8' '.
  • the arrow 8 ' is perpendicular to the image surface and is directed forward; the arrow 8 '' - also vertical - is directed towards the rear.
  • the reference numeral 9 indicates a point where the generation of two partial flows is indicated by the arrows.
  • the deflection plates 3 are advantageously in a common plane. If there are at least two dividers 2 per section (three-hole variant), several deflection disks 3 can form a common disc or a single disc 30 (four-hole variant): see FIGS. 5a and 5b and the corresponding FIGS. 7a and 7b for the four-hole Variant.
  • FIGS. 7a and 7b only the single and common deflection plate 30 and 30 'is shown.
  • the dash-dotted lines 23 represent the lower edges of the upper dividers.
  • the shapes of adjacent mixing elements are mirror images of one another in the four-hole variant.
  • the mixer according to the invention can also have a cross section with a different shape, for example a square.
  • Sections 1a and 1b can be of different lengths. The length of the sections 1a and 1b is advantageously in the range between D / 8 and D; it is preferably D / 4.
  • FIG. 8 illustrates what deviations from the simple shapes described above are conceivable, for example: connecting elements 35 are arranged between the spaced-apart mixing elements 1, 1 '.
  • the Separators 2 have additional elements 25 for reinforcement or flow control. Separators 2 'and 2''of adjacent mixing elements 1' and 1 '' are inserted into one another at position 29. Individual dividers 2 and deflection plates 3 are not flat.
  • the mixing elements 1 and 1 ' have different numbers of dividers 2 and 2' per section 1a and 1b, namely two and one, respectively.
  • a separating web 2 has a recess 29. 8 is only to be understood as an illustration of individual features; the special combination of all the features listed in the same mixer need not be particularly advantageous.
  • the tube 10 can also be conical (not shown), so that it tapers in the direction of flow; in this case, the mixing bodies 1, 1 'must be of different sizes depending on the changing cross section.
  • Fig. 9 shows how the coefficient of variation s / x ⁇
  • the reference symbols 1 * to 5 * refer to the mixer types listed in the table above.
  • the mixer according to the invention which can be produced monolithically from a small amount of material, is advantageously manufactured from an inexpensive, combustible plastic by injection molding. This mixer is particularly well suited to be used as a disposable item.
  • the mixer according to the invention can also be used for mixing turbulent flowing media.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Food-Manufacturing Devices (AREA)
  • Filling, Topping-Up Batteries (AREA)
EP95810418A 1995-06-21 1995-06-21 Mélangeur avec corps en forme de tube Expired - Lifetime EP0749776B1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
AT95810418T ATE198839T1 (de) 1995-06-21 1995-06-21 In einem rohr angeordneter mischer
EP95810418A EP0749776B1 (fr) 1995-06-21 1995-06-21 Mélangeur avec corps en forme de tube
DE29522199U DE29522199U1 (de) 1995-06-21 1995-06-21 In einem Rohr angeordneter Mischer
DE59508992T DE59508992D1 (de) 1995-06-21 1995-06-21 In einem Rohr angeordneter Mischer
ES95810418T ES2155509T3 (es) 1995-06-21 1995-06-21 Mezclador con cuerpo en forma de tubo.
TW085105453A TW315314B (fr) 1995-06-21 1996-05-08
CA002178065A CA2178065C (fr) 1995-06-21 1996-06-03 Malaxeur sous tube
US08/660,434 US5944419A (en) 1995-06-21 1996-06-07 Mixing device
KR1019960020691A KR100420822B1 (ko) 1995-06-21 1996-06-11 튜브내에 배설된 믹서
CN96111003A CN1052171C (zh) 1995-06-21 1996-06-19 一种装配在管内的混合器
BR9602858A BR9602858A (pt) 1995-06-21 1996-06-20 Misturador colocado num tubo e utilização
JP15997396A JP4283901B2 (ja) 1995-06-21 1996-06-20 管内に配置されたミキサー

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95810418A EP0749776B1 (fr) 1995-06-21 1995-06-21 Mélangeur avec corps en forme de tube

Publications (2)

Publication Number Publication Date
EP0749776A1 true EP0749776A1 (fr) 1996-12-27
EP0749776B1 EP0749776B1 (fr) 2001-01-24

Family

ID=8221764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810418A Expired - Lifetime EP0749776B1 (fr) 1995-06-21 1995-06-21 Mélangeur avec corps en forme de tube

Country Status (11)

Country Link
US (1) US5944419A (fr)
EP (1) EP0749776B1 (fr)
JP (1) JP4283901B2 (fr)
KR (1) KR100420822B1 (fr)
CN (1) CN1052171C (fr)
AT (1) ATE198839T1 (fr)
BR (1) BR9602858A (fr)
CA (1) CA2178065C (fr)
DE (2) DE59508992D1 (fr)
ES (1) ES2155509T3 (fr)
TW (1) TW315314B (fr)

Cited By (26)

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DE10158651A1 (de) * 2001-11-30 2003-06-12 Ritter Gmbh Statisches Mischelement
DE10322922A1 (de) * 2003-05-21 2004-12-16 Fischerwerke Artur Fischer Gmbh & Co. Kg Statikmischer
EP1588757A1 (fr) * 2004-04-22 2005-10-26 Sulzer Chemtech AG Mélangeur statique pour la production de mélanges durcissables de composants liquides, et son utilisation
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
DE202008007801U1 (de) 2007-09-19 2008-08-21 Kettenbach Gmbh & Co. Kg Behälter
EP2286925A2 (fr) 2009-08-20 2011-02-23 Sulzer Mixpac AG Pulvérisateur avec mélangeur statique
DE102009054652A1 (de) 2009-12-15 2011-06-16 Hilti Aktiengesellschaft Statischer Mischer
DE202011050465U1 (de) 2011-06-16 2011-08-17 Vosschemie Gmbh Statischer Mischer zum Mischen von mindestens zwei fließfähigen Komponenten
US8083397B2 (en) 2008-06-13 2011-12-27 Nordson Corporation Static mixer
WO2011162728A1 (fr) * 2010-06-23 2011-12-29 Gluetec Gmbh & Co. Kg Mélangeur statique comprenant des éléments de mélange asymétriques
WO2012010338A1 (fr) 2010-07-20 2012-01-26 Sulzer Mixpac Ag Mélangeur à pulvérisation statique
WO2012010337A1 (fr) 2010-07-20 2012-01-26 Sulzer Mixpac Ag Mélangeur à pulvérisation statique
EP2527041A1 (fr) 2011-05-23 2012-11-28 Sulzer Mixpac AG Pièce intermédiaire pour un mélangeur statique de pulvérisation
EP2548634A1 (fr) * 2011-07-22 2013-01-23 Sulzer Mixpac AG Elément de mélange pour mélangeur statique
EP2614883A1 (fr) * 2012-01-11 2013-07-17 Sulzer Mixpac AG Mélangeur statique
WO2013171030A1 (fr) 2012-05-14 2013-11-21 Sulzer Mixpac Ag Mélangeur à pulvérisation permettant de mélanger et de pulvériser deux composants fluides
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DE202018106654U1 (de) 2018-11-22 2019-02-06 Sulzer Mixpac Ag Statischer Mischer
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US10363526B2 (en) 2015-08-07 2019-07-30 Nordson Corporation Entry mixing elements and related static mixers and methods of mixing
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DE202023106686U1 (de) 2022-11-18 2024-04-02 Medmix Switzerland Ag Statischer Mischer
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WO2024221118A1 (fr) 2023-04-24 2024-10-31 Felix Streiff Éléments de mélange statiques comprenant un séparateur ainsi que des surfaces de déviation et mélangeurs statiques

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ATE308375T1 (de) 2000-02-17 2005-11-15 Sulzer Chemtech Ag Statischer mischer
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DE20002920U1 (de) 2000-02-18 2000-04-20 Schröder & Boos Misch- und Anlagentechnik GmbH & Co. KG, 27578 Bremerhaven Homogenisator
ATE242045T1 (de) * 2002-03-22 2003-06-15 Sulzer Chemtech Ag Rohrmischer mit einem longitudinalen einbaukörper
US6773156B2 (en) * 2002-07-10 2004-08-10 Tah Industries, Inc. Method and apparatus for reducing fluid streaking in a motionless mixer
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US20060256649A1 (en) * 2003-04-28 2006-11-16 Indigo Technologies Group Pty Ltd. Method and apparatus for mixing fluids for particle agglomeration
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US7198400B2 (en) * 2003-05-03 2007-04-03 Husky Injection Molding Systems Ltd. Static mixer and a method of manufacture thereof
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DE102004046226A1 (de) * 2004-09-22 2006-04-06 Heraeus Kulzer Gmbh Verfahren zum Mischen der Komponenten von Polyetherabformmassen
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DE202008007801U1 (de) 2007-09-19 2008-08-21 Kettenbach Gmbh & Co. Kg Behälter
US8083397B2 (en) 2008-06-13 2011-12-27 Nordson Corporation Static mixer
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CA2178065C (fr) 2000-05-30
EP0749776B1 (fr) 2001-01-24
JP4283901B2 (ja) 2009-06-24
DE59508992D1 (de) 2001-03-01
KR970000319A (ko) 1997-01-21
TW315314B (fr) 1997-09-11
CN1148518A (zh) 1997-04-30
BR9602858A (pt) 1998-04-22
ATE198839T1 (de) 2001-02-15
CN1052171C (zh) 2000-05-10
CA2178065A1 (fr) 1996-12-22
ES2155509T3 (es) 2001-05-16
JPH09901A (ja) 1997-01-07
KR100420822B1 (ko) 2004-05-22
US5944419A (en) 1999-08-31
DE29522199U1 (de) 2000-08-17

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