EP0727249B1 - Static mixer for very viscous liquids - Google Patents

Static mixer for very viscous liquids Download PDF

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Publication number
EP0727249B1
EP0727249B1 EP95810073A EP95810073A EP0727249B1 EP 0727249 B1 EP0727249 B1 EP 0727249B1 EP 95810073 A EP95810073 A EP 95810073A EP 95810073 A EP95810073 A EP 95810073A EP 0727249 B1 EP0727249 B1 EP 0727249B1
Authority
EP
European Patent Office
Prior art keywords
webs
mixer
accordance
pipe
mixer element
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
EP95810073A
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German (de)
French (fr)
Other versions
EP0727249A1 (en
Inventor
Rudolf Maurer
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
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 Sulzer Chemtech AG filed Critical Sulzer Chemtech AG
Priority to AT95810073T priority Critical patent/ATE179630T1/en
Priority to EP95810073A priority patent/EP0727249B1/en
Priority to ES95810073T priority patent/ES2132575T3/en
Priority to DE59505843T priority patent/DE59505843D1/en
Priority to CA002165375A priority patent/CA2165375C/en
Priority to JP33507495A priority patent/JP3845466B2/en
Priority to KR1019960000474A priority patent/KR100403881B1/en
Priority to US08/585,817 priority patent/US5620252A/en
Priority to CZ1996271A priority patent/CZ288772B6/en
Priority to PL96312556A priority patent/PL179318B1/en
Priority to BR9600283A priority patent/BR9600283A/en
Priority to CN96105911A priority patent/CN1047741C/en
Priority to MX9600453A priority patent/MX9600453A/en
Publication of EP0727249A1 publication Critical patent/EP0727249A1/en
Application granted granted Critical
Publication of EP0727249B1 publication Critical patent/EP0727249B1/en
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
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • 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

Definitions

  • the invention relates to a static mixing device for highly viscous media, especially for Plastic melting, according to the preamble of claim 1.
  • the invention also relates to a mixing element such a mixing device and for use this device.
  • the mixing element of this device has one Structure based on interlocking, itself crossing webs builds up, the webs two groups of structural elements aligned in parallel.
  • the mixing element 10 of Figure 1 is composed of the crossing webs 3 and 30 together.
  • Reference numeral 30 is assigned to the marginal ridges.
  • a neighboring one Mixing element 10 ' is indicated by dash-dotted lines.
  • the elliptical lines 35 and 36 give the edges of Surfaces by webs, not shown be spanned.
  • the surfaces with the edges 35 or 36 cross each other.
  • the two mixing elements 10 and 10 ' are the same, but one is 90 ° from the other another arranged rotated about the longitudinal axis.
  • the Longitudinal axis runs in the direction of arrow 4, which the Main flow direction represents.
  • Fig.2 shows the critical areas between the marginal webs 30 and the tube wall 2.
  • Through the thin arrows 4b is the weakly developed flow in the edge region, while the wide arrows 4a the stronger flow inside the mixing element 10 specify.
  • In the corner areas 40 between pipe wall 2 and marginal webs 30, in Fig.2 by a variety are marked by dots, the movement of the mixing medium practically to a standstill.
  • the marginal Web 30 removed and replaced by ribs 5.
  • the reinforcing ribs 5 can have just the length of the mixing element 1 (pulled out shown) or they can have extensions 5a (indicated by dash-dotted lines) in the neighboring Project mixing elements 1 'and 1' '.
  • the second case is shown in Figure 4, where in addition to the mixing element 1 3 two adjacent mixing elements 1 'and 1' '(with the associated reinforcing ribs 5 'and 5' ') can be seen.
  • the ribs 5, as shown in the mixing elements of FIGS. 3 and 4 are provided, shown as separate parts.
  • the ribs 5 are on the Places 51 connected to the side webs 31 (welded in the present example).
  • the ribs 5 can also be in the form of continuous, over the entire Length of the mixing device extending bars be educated.
  • all webs 3, 31 of the mixing element 1 of the same width are identical.
  • the distance between the lateral webs 31 and the tube wall 2 in the two segmental edge areas is not larger than one Web width.
  • the node lines 32a and 32b are given by crossing points of the webs 3 and 31 (see Fig. 1), ground in a wedge shape (see Fig. 3). Thanks to this wedge shape, the result is slightly smaller Pressure gradient during the mixing process. Also on the lateral node lines 33, the webs 3 and 31 with Advantage cut to the intersection and cut through a weld seam joined together. The reason for this measure is the same as for the omission of the marginal webs 30. The modification to the lateral node lines 33 has the additional effect that the pressure gradient is further reduced. A disadvantageous effect on the mixing quality is practically not available.
  • the mixing element 1 shown in the drawings is provided for a tube 2 with a circular cross section.
  • the invention can of course be correspondingly also on mixing devices with others Apply cross-sectional shapes.
  • the mixing element - including the Reinforcing ribs - can take the form of a Welded construction can also be provided as a casting.

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

Abstract

A static mixer for a highly viscous medium incorporates a pipe (2) and one or more mixer elements (10) within the pipe. The pipe defines the main directional flow (4) of the medium to be mixed. The main structural components are a series of crosspieces (3, 30) which are each at an angle to the main direction of flow. The novelty is that the mixer element does not cover the whole cross-sectional area. Two segmented peripheral areas located between the side-edges and the side crosspieces (3), have no crosspieces arranged at an angle to the main direction of flow.

Description

Die Erfindung betrifft eine statische Mischvorrichtung für hochviskose Medien, insbesondere für Kunststoffschmelzen, gemäss Oberbegriff von Anspruch 1. Die Erfindung bezieht sich auch auf ein Mischelement einer derartigen Mischvorrichtung und auf eine Verwendung dieser Vorrichtung.The invention relates to a static mixing device for highly viscous media, especially for Plastic melting, according to the preamble of claim 1. The invention also relates to a mixing element such a mixing device and for use this device.

Eine solche Vorrichtung ist aus den Patentschriften CH-C-642 564 (= P.5473) oder DE-C-28 08 854 (= P.5285) bekannt. Das Mischelement dieser Vorrichtung weist eine Struktur auf, die sich aus ineinandergreifenden, sich kreuzenden Stegen aufbaut, wobei die Stege zwei Gruppen von parallel ausgerichteten Strukturelementen bilden.Such a device is from the patents CH-C-642 564 (= P.5473) or DE-C-28 08 854 (= P.5285) known. The mixing element of this device has one Structure based on interlocking, itself crossing webs builds up, the webs two groups of structural elements aligned in parallel.

Durch die Stege, die am Rand des Mischelements angeordnet sind und dort mit ihrer Aussenkante an der Rohrwand anliegen oder zumindest in deren Nähe liegen, ergibt sich ein Problem: Im Bereich dieser Stege fliesst das zu mischende Medium wesentlich langsamer als im Innenbereich des Mischelements. In den Eckbereichen zwischen den randständigen Stegen und der Rohrwand weist daher das Medium eine relativ lange Verweilzeit auf, die - wie die Praxis gezeigt hat - zu Qualitätseinbussen bei den aus den gemischten Medien erzeugten Produkten führen kann.Through the webs, which are arranged on the edge of the mixing element are and there with their outer edge on the pipe wall concerns or at least lie in the vicinity, results one problem: this flows into the area of these webs mixing medium much slower than indoors of the mixing element. In the corner areas between the marginal webs and the pipe wall therefore shows that Medium has a relatively long dwell time, which - like that Practice has shown - to loss of quality in the from the mixed media products.

Es ist daher die Aufgabe der Erfindung, Mittel zu schaffen, mit denen die festgestellten Qualitätseinbussen beseitigt oder zumindest verringert werden können. Diese Aufgabe wird mit den im Anspruch 1 genannten Merkmalen gelöst. Die abhängigen Ansprüche 2 bis 6 beziehen sich auf besondere Ausführungsformen und vorteilhafte Weiterbildungen der erfindungsgemässen Mischvorrichtung. Eine solche Weiterbildung besteht darin, dass Verstärkungsrippen anstelle der randständigen Stege vorgesehen sind. Derartige Verstärkungen sind beim Mischen von hochviskosen Medien besonders vorteilhaft, da die Mischelemente sehr grossen Kräften aufgrund hoher axialer Druckgradienten ausgesetzt sind. Die Ansprüche 7 und 8 betreffen das Mischelement bzw. die Verwendung der erfindungsgemässen Vorrichtung für das Mischen und Homogenisieren einer Kunststoffschmelze.It is therefore the object of the invention to provide funds create with which the identified quality losses can be eliminated or at least reduced. This Task with the features mentioned in claim 1 solved. The dependent claims 2 to 6 relate to special embodiments and advantageous Developments of the mixing device according to the invention. Such further training consists in the fact that Reinforcing ribs instead of the marginal webs are provided. Such reinforcements are in the Mixing highly viscous media is particularly advantageous because the mixing elements very large forces due to high axial pressure gradients are exposed. Claims 7 and 8 relate to the mixing element and the use of the inventive device for mixing and Homogenize a plastic melt.

Nachfolgend wird die Erfindung anhand der Zeichnungen erläutert. Es zeigen:

Fig. 1
ein bekanntes Mischelement in perspektivischer Darstellung,
Fig. 2
die Randzone des Mischelements von Fig.1 mit angedeuteten Strömungsverhältnissen,
Fig. 3
ein erfindungsgemässes Mischelement, das sich durch eine Änderung des Mischelements von Fig.1 ergibt,
Fig. 4
eine Seitenansicht auf erfindungsgemässe, in Serie angeordnete Mischelemente,
Fig.5a,b
zwei Verstärkungsrippen und
Fig. 6
eine Verstärkungsrippe mit vergrössertem Mittelteil.
The invention is explained below with reference to the drawings. Show it:
Fig. 1
a known mixing element in a perspective view,
Fig. 2
the edge zone of the mixing element of Figure 1 with indicated flow conditions,
Fig. 3
a mixing element according to the invention, which results from a change in the mixing element of Figure 1,
Fig. 4
2 shows a side view of mixing elements according to the invention arranged in series,
Fig.5a, b
two reinforcing ribs and
Fig. 6
a reinforcing rib with an enlarged middle section.

Das Mischelement 10 der Fig.1 setzt sich aus den sich kreuzenden Stegen 3 und 30 zusammen. Das Bezugszeichen 30 ist den randständigen Stegen zugeordnet. Ein benachbartes Mischelement 10' ist strichpunktiert angedeutet. Die elliptischen Linien 35 bzw. 36 geben die Ränder von Flächen an, die durch nicht dargestellte Stege aufgespannt werden. Die Flächen mit den Rändern 35 bzw. 36 kreuzen einander. Die zwei Mischelemente 10 und 10' sind gleich, aber das eine ist um 90° gegenüber dem anderen um die Längsachse gedreht angeordnet. Die Längsachse verläuft in Richtung des Pfeils 4, der die Hauptströmungsrichtung darstellt.The mixing element 10 of Figure 1 is composed of the crossing webs 3 and 30 together. Reference numeral 30 is assigned to the marginal ridges. A neighboring one Mixing element 10 'is indicated by dash-dotted lines. The elliptical lines 35 and 36 give the edges of Surfaces by webs, not shown be spanned. The surfaces with the edges 35 or 36 cross each other. The two mixing elements 10 and 10 ' are the same, but one is 90 ° from the other another arranged rotated about the longitudinal axis. The Longitudinal axis runs in the direction of arrow 4, which the Main flow direction represents.

Fig.2 zeigt die kritischen Bereiche zwischen den randständigen Stegen 30 und der Rohrwand 2. Durch die dünnen Pfeile 4b ist die schwach ausgebildete Strömung in der Randregion dargestellt, während die breiten Pfeile 4a die stärkere Strömung im Innern des Mischelements 10 angeben. In den Eckbereichen 40 zwischen Rohrwand 2 und randständigen Stegen 30, die in Fig.2 durch eine Vielzahl von Punkten markiert sind, kommt die Bewegung des zu mischenden Mediums praktisch zum Erliegen.Fig.2 shows the critical areas between the marginal webs 30 and the tube wall 2. Through the thin arrows 4b is the weakly developed flow in the edge region, while the wide arrows 4a the stronger flow inside the mixing element 10 specify. In the corner areas 40 between pipe wall 2 and marginal webs 30, in Fig.2 by a variety are marked by dots, the movement of the mixing medium practically to a standstill.

Werden die randständigen Stege 30 gemäss der Erfindung weggelassen, so entstehen zwei offene, segmentförmige Randbereiche, die zwischen den Seitenkanten der seitlichen Stege 31 (siehe Fig.3) und der Rohrwand 2 liegen. Durch die segmentförmigen Randbereiche kann das Medium axial ungehemmt durchströmen. Wie sich experimentell gezeigt hat, bleibt diese Massnahme bezüglich der Mischgüte ohne einen ins Gewicht fallenden negativen Effekt.Are the marginal webs 30 according to the invention omitted, so two open, segment-shaped Marginal areas between the side edges of the lateral webs 31 (see FIG. 3) and the tube wall 2 lie. Due to the segmental edge areas, this can Flow medium axially uninhibited. How to has shown experimentally, this measure remains with regard to the mixing quality without a significant one negative effect.

Bei dem Mischelement 1 der Fig.3 sind die randständigen Stege 30 entfernt und durch Rippen 5 ersetzt worden. Mit den Rippen 5 erhält das Mischelement 1 eine Verstärkung in axialer Richtung. Die Verstärkungsrippen 5 können gerade die Länge des Mischelements 1 haben (ausgezogen dargestellt) oder sie können Verlängerungen 5a aufweisen (strichpunktiert angedeutet), die in die benachbarten Mischelemente 1' und 1'' hineinragen. Der zweite Fall ist in Fig.4 dargestellt, wo neben dem Mischelement 1 der Fig.3 zwei benachbarte Mischelemente 1' und 1'' (mit den zugeordneten Verstärkungsrippen 5' und 5'') zu sehen sind. In den Figuren 5a und 5b sind die Rippen 5, wie sie in den Mischelementen der Figuren 3 bzw. 4 vorgesehen sind, als separate Teile abgebildet. Die Rippen 5 sind an den Stellen 51 mit den seitlichen Stegen 31 verbunden (verschweisst im vorliegenden Beispiel). Die Rippen 5 können auch in Form von durchgehenden, über die gesamte Länge der Mischvorrichtung sich erstreckende Balken gebildet sein.In the mixing element 1 of Figure 3, the marginal Web 30 removed and replaced by ribs 5. With the ribs 5, the mixing element 1 receives reinforcement in the axial direction. The reinforcing ribs 5 can have just the length of the mixing element 1 (pulled out shown) or they can have extensions 5a (indicated by dash-dotted lines) in the neighboring Project mixing elements 1 'and 1' '. The second case is shown in Figure 4, where in addition to the mixing element 1 3 two adjacent mixing elements 1 'and 1' '(with the associated reinforcing ribs 5 'and 5' ') can be seen. In Figures 5a and 5b, the ribs 5, as shown in the mixing elements of FIGS. 3 and 4 are provided, shown as separate parts. The ribs 5 are on the Places 51 connected to the side webs 31 (welded in the present example). The ribs 5 can also be in the form of continuous, over the entire Length of the mixing device extending bars be educated.

Bei dem gezeigten Ausführungsbeispiel sind alle Stege 3, 31 des Mischelements 1 gleich breit. Der Abstand zwischen den seitlichen Stegen 31 und der Rohrwand 2 in den beiden segmentförmigen Randbereichen ist nicht grösser als eine Stegbreite.In the embodiment shown, all webs 3, 31 of the mixing element 1 of the same width. The distance between the lateral webs 31 and the tube wall 2 in the two segmental edge areas is not larger than one Web width.

Mit Vorteil werden die Knotenlinien 32a und 32b, die durch Kreuzungsstellen der Stege 3 und 31 gegeben sind (vgl. Fig.1), keilförmig zugeschliffen (siehe Fig.3). Dank dieser Keilform ergibt sich ein etwas geringerer Druckgradient während des Mischvorgangs. Auch an den seitlichen Knotenlinien 33 werden die Stege 3 und 31 mit Vorteil bis zu den Kreuzungsstellen abgelängt und durch eine Schweissnaht miteinander verbunden. Der Grund für diese Massnahme ist der gleiche wie für das Weglassen der randständigen Stege 30. Die Modifikation an den seitlichen Knotenlinien 33 hat den zusätzlichen Effekt, dass der Druckgradient weiter verkleinert wird. Ein nachteiliger Effekt auf die Mischgüte ist praktisch nicht vorhanden.Advantageously, the node lines 32a and 32b are given by crossing points of the webs 3 and 31 (see Fig. 1), ground in a wedge shape (see Fig. 3). Thanks to this wedge shape, the result is slightly smaller Pressure gradient during the mixing process. Also on the lateral node lines 33, the webs 3 and 31 with Advantage cut to the intersection and cut through a weld seam joined together. The reason for this measure is the same as for the omission of the marginal webs 30. The modification to the lateral node lines 33 has the additional effect that the pressure gradient is further reduced. A disadvantageous effect on the mixing quality is practically not available.

Für die Formgebung der Verstärkungsrippen 5 bestehen weitere Möglichkeiten. In Fig.6 ist ein Beispiel dargestellt, bei dem die Rippe 5 in ihrer Mitte eine transversale Erweiterung 50 aufweist. Der Querschnitt dieser Erweiterung 50 füllt einen Sektor 60 des segmentförmigen Randbereichs zwischen Mischelement 1 und Rohr 2 aus (vgl. Fig.4). Dabei ist der Sektor 60 durch einen Bogen 61 der Rohrwand, durch eine Teilstrecke 62 der Seitenfläche des Mischelements 1 sowie durch zwei Verbindungsstrecken 63 und 64 umgrenzt. Die Höhe des Sektors 60, gemessen senkrecht zu der durch die seitlichen Stege 31 aufgespannten Seitenfläche des Mischelements 1, ist kleiner als die Breite des Sektors (= Länge der Teilstrecke 62).For the shape of the reinforcing ribs 5 exist More options. In Figure 6 is an example shown, in which the rib 5 in the middle of a has transverse extension 50. The cross section this extension 50 fills a sector 60 of the segmental edge area between mixing element 1 and Tube 2 from (see Fig. 4). Sector 60 is over an arc 61 of the pipe wall, through a section 62 the side surface of the mixing element 1 and by two Connected routes 63 and 64. The amount of Sector 60, measured perpendicular to that through the lateral webs 31 spanned side surface of the Mixing element 1 is smaller than the width of the sector (= Length of section 62).

Das in den Zeichnungen dargestellte Mischelement 1 ist für ein Rohr 2 mit kreisförmigem Querschnitt vorgesehen. Selbstverständlich lässt sich die Erfindung entsprechend auch auf Mischvorrichtungen mit anderen Querschnittsformen anwenden. Ebenso ist die Erfindung auf eine Vorrichtung anwendbar, die in der europäischen Patentanmeldung Nr. 93810701.8 (= P.6600) offenbart ist und bei der das Mischelement einen flanschartigen Ring aufweist. Das Mischelement - einschliesslich der Verstärkungsrippen - kann statt in Form einer Schweisskonstruktion auch als Gussstück vorgesehen sein.The mixing element 1 shown in the drawings is provided for a tube 2 with a circular cross section. The invention can of course be correspondingly also on mixing devices with others Apply cross-sectional shapes. The invention is also based on a device applicable in the European Patent Application No. 93810701.8 (= P.6600) is disclosed and in which the mixing element is a flange-like ring having. The mixing element - including the Reinforcing ribs - can take the form of a Welded construction can also be provided as a casting.

Claims (8)

  1. Static mixer apparatus for highly viscous media comprising a pipe (2) and at least one mixer element (10) arranged in the pipe, wherein the structure of the mixer element is built up of inter-engaging and crossing webs (3, 31), wherein the pipe defines a principal flow direction (4) of the medium to be mixed, and wherein the webs each include an angle relative to the principal flow direction, characterized in that the pipe cross-section is not completely covered by the mixer element, namely in such a manner that two segment-shaped marginal regions lying between the long side edges of webs (31) of the mixer elements close to the margin and the pipe wall have no webs (30) arranged inclined relative to the principal flow direction.
  2. Apparatus in accordance with claim 1, characterized in that all webs (3) have substantially the same width and in that the distance between the lateral webs and the pipe wall in the two marginal regions is not larger than one web width.
  3. Apparatus in accordance with claim 1 or claim 2, characterized in that a rib (5) extending in the principal flow direction (4) is arranged in each of the two marginal regions and is secured to the mixer element (1) reinforcing the latter.
  4. Apparatus in accordance with one of the claims 1 to 3, characterized in that a plurality of mixer elements (1, 1', 1'') are present and in that ribs (5) are associated with each mixer element (1) with each of the ribs being extended into the centre region of the neighbouring mixer elements (1', 1'').
  5. Apparatus in accordance with claim 3 or claim 4, characterized in that at least one rib (5) has a cross-section at its centre which substantially completely fills out a sector (60) of the associated segment-shaped marginal region, wherein the sector is bounded by an arch (61) of the pipe wall, by a portion (62) of the lateral surface of the mixer element and by two connector portions (63, 64).
  6. Apparatus in accordance with claim 5, characterized in that the height of the sector (60), measured perpendicular to the lateral surface (62) of the mixer element, is smaller than the width of the sector.
  7. Mixer element for an apparatus in accordance with one of the claims 1 to 6.
  8. Use of an apparatus in accordance with one of the claims 1 to 6 for mixing and homogenising a plastic melt.
EP95810073A 1995-02-02 1995-02-02 Static mixer for very viscous liquids Expired - Lifetime EP0727249B1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
AT95810073T ATE179630T1 (en) 1995-02-02 1995-02-02 STATIC MIXING DEVICE FOR HIGH VISCOSITY MEDIA
EP95810073A EP0727249B1 (en) 1995-02-02 1995-02-02 Static mixer for very viscous liquids
ES95810073T ES2132575T3 (en) 1995-02-02 1995-02-02 STATIC MIXER FOR VERY VISCOUS LIQUIDS.
DE59505843T DE59505843D1 (en) 1995-02-02 1995-02-02 Static mixing device for highly viscous media
CA002165375A CA2165375C (en) 1995-02-02 1995-12-15 Static mixer apparatus for highly viscous media
JP33507495A JP3845466B2 (en) 1995-02-02 1995-12-22 Static mixer device for high viscosity medium
KR1019960000474A KR100403881B1 (en) 1995-02-02 1996-01-12 Static mixer device for high viscous media
US08/585,817 US5620252A (en) 1995-02-02 1996-01-16 Static mixer apparatus for highly viscous media
CZ1996271A CZ288772B6 (en) 1995-02-02 1996-01-30 Static mixing device for high-viscosity media
PL96312556A PL179318B1 (en) 1995-02-02 1996-01-31 Stationary mixer for mixing highly viscous media and agitator
BR9600283A BR9600283A (en) 1995-02-02 1996-01-31 Static mixing equipment for highly viscous media and mixing element
CN96105911A CN1047741C (en) 1995-02-02 1996-02-01 Static mixer apparatus for highly viscous media
MX9600453A MX9600453A (en) 1995-02-02 1996-02-01 Static mixture device for highly viscous media.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95810073A EP0727249B1 (en) 1995-02-02 1995-02-02 Static mixer for very viscous liquids

Publications (2)

Publication Number Publication Date
EP0727249A1 EP0727249A1 (en) 1996-08-21
EP0727249B1 true EP0727249B1 (en) 1999-05-06

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810073A Expired - Lifetime EP0727249B1 (en) 1995-02-02 1995-02-02 Static mixer for very viscous liquids

Country Status (13)

Country Link
US (1) US5620252A (en)
EP (1) EP0727249B1 (en)
JP (1) JP3845466B2 (en)
KR (1) KR100403881B1 (en)
CN (1) CN1047741C (en)
AT (1) ATE179630T1 (en)
BR (1) BR9600283A (en)
CA (1) CA2165375C (en)
CZ (1) CZ288772B6 (en)
DE (1) DE59505843D1 (en)
ES (1) ES2132575T3 (en)
MX (1) MX9600453A (en)
PL (1) PL179318B1 (en)

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US5971603A (en) * 1998-03-06 1999-10-26 The Madison Group: Polymer Processing Research Corp. Static mixer head
US6224833B1 (en) * 1998-12-15 2001-05-01 Koch-Glitsch, Inc. Apparatus for contacting of gases and solids in fluidized beds
US6394644B1 (en) * 1999-06-21 2002-05-28 Koch-Glitsch, Inc. Stacked static mixing elements
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US6550960B2 (en) * 2000-10-11 2003-04-22 The Procter & Gamble Company Apparatus for in-line mixing and process of making such apparatus
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ES2314082T3 (en) 2001-08-02 2009-03-16 Lg Life Sciences Limited PROCEDURES FOR THE PRODUCTION OF AMINO DERIVATIVES PROTECTED FROM 4-AMINOMETILENPIRROLIDIN-3-ONA, GEMIFLOXACINE AND ITS SALTS.
EP1613946A4 (en) * 2003-03-20 2006-07-12 Univ Northeastern Ohio Self-contained assay device for rapid detection of biohazardous agents
DE502004006983D1 (en) * 2003-08-26 2008-06-12 Sulzer Chemtech Ag Static mixer with polymorphic structure
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KR960030986A (en) 1996-09-17
KR100403881B1 (en) 2004-01-07
CN1047741C (en) 1999-12-29
JPH08309170A (en) 1996-11-26
CA2165375C (en) 2000-04-04
DE59505843D1 (en) 1999-06-10
ES2132575T3 (en) 1999-08-16
PL179318B1 (en) 2000-08-31
CZ288772B6 (en) 2001-08-15
CN1140098A (en) 1997-01-15
BR9600283A (en) 1997-12-23
US5620252A (en) 1997-04-15
ATE179630T1 (en) 1999-05-15
PL312556A1 (en) 1996-08-05
JP3845466B2 (en) 2006-11-15
CA2165375A1 (en) 1996-08-03
EP0727249A1 (en) 1996-08-21
MX9600453A (en) 1997-01-31
CZ27196A3 (en) 1996-08-14

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