EP0815929B1 - Statischer Mischer - Google Patents
Statischer Mischer Download PDFInfo
- Publication number
- EP0815929B1 EP0815929B1 EP96810441A EP96810441A EP0815929B1 EP 0815929 B1 EP0815929 B1 EP 0815929B1 EP 96810441 A EP96810441 A EP 96810441A EP 96810441 A EP96810441 A EP 96810441A EP 0815929 B1 EP0815929 B1 EP 0815929B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chambers
- mixer
- mixing
- strings
- passages
- 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
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 3
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008707 rearrangement Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000013517 stratification Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4315—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material
- B01F25/43151—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material composed of consecutive sections of deformed 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
- 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
Definitions
- the invention relates to a static mixer with a Bundle of chambered strands.
- each of the mixing elements includes two axial sections, each section at least one divider dividing the section assigned.
- the dividers of the two sections intersect and divide the pipe cross section into Subareas that are essentially the same size.
- Sub-areas covered by deflection disks are provided and in such a way that exactly on both sides of each divider an open partial area is arranged.
- Relationships that on the one hand neighboring dividers cross and on the other hand the open areas are mutually offset.
- each a mixing-active chamber according to an alternative Assign definition of an open partial area.
- the two closed chamber ends and the neighboring ones Side walls, the passages to other chambers are contained by the deflection plates or formed by the dividers.
- Multiflux mixers contain a linear arrangement of Mixing elements, each with two channels. Everyone of these channels continuously narrows in Flow direction to the middle of the mixing element (Confuser); it widens behind the narrowest part again continuously (diffuser) in a 90 ° rotated level.
- a flowing through the mixing element Medium undergoes a transformation through which the number of partial layers doubled. This transformation continues together from a "cutting" of the medium at the entry into the mixing element in two partial flows, a "upsetting” (in Confuser), a “spread” (in the diffuser) and one Merging the partial streams. Ideally, this is done “Cutting” in such a way that a current with a uniform layering perpendicular to the layers is cut so that after the forming continues an even stratification - with a doubled number Sub-layers - present.
- the static mixer shown in Fig.1 consists of a mixer structure 1 arranged in a tube 10 is.
- the mixer structure 1 is composed of mixing elements 1 'together, each consisting of two dividers 2, 2' and there are two deflection disks 3, 3 '.
- the geometric structure of the mixer structure 1 - see Figures 2 and 2a - can be viewed as one in the z-axis direction oriented bundle of chambered strands A, B, Describe C and D.
- the names for the chambers are A1, A2, ... B1, B2, ... C1, C2, ... and D1, D2, ...
- These chambers are "mixed”; they extend into Direction of the tube 10 between two closed Ends e1, e2, and two adjacent side walls the mixing chamber contain four alternate arranged passages a1, b1, a2 and b2 (with each areas marked with a cross in Fig. 2).
- the chamber C2 is through passages a1 and b1 with the two upstream chambers A1, B1 and via the Passages a2 and b2 with the two downstream Chambers A2, B2 connected. All are in the mixer of Fig.1 Mixing chambers. In general, however, one Mixing chamber also with other chambers (Rearrangement or intermediate chambers, see below) be connected.
- the strands A and B - to be seen as cross sections in Fig.2a - have the same structure; by a 180 ° turn the z-axis (or center line 5) can be used with strand A. the line B are brought to congruence.
- the Strands of a pair A, B are each with the another strand pair C, D via the chamber passages a1, ... connected.
- the two strand pairs differ in that the chambers of one versus those of another offset by half a chamber length in the z direction are arranged.
- Arrows 6a, 6b, 7a and 7b in FIG. 1 indicate reshaped like the medium to be mixed in chamber C2 becomes.
- Two media flows emerge from strands A and B. through the entrance passages a1 (arrows 6a, 6b) and a2 (Arrows 7a, 7b) in the chamber C2 and thus in the strand C a, unite there and influence each other simultaneously moving through chamber C2.
- the remaining partial flow (Arrows 6b, 7b) enters via the exit passage b2 strand B.
- there is an even one Redistribution as indicated by the arrows, where each arrow has an equal amount transported mix corresponds.
- the chambers of the mixer structure 1 are essentially cuboid and the passages rectangular.
- the walls are plate-shaped.
- the walls have to not have constant wall thicknesses. You can for example, be wedge-shaped, as shown in Fig.3 is illustrated.
- the chamber S1 has two entry passages a1 and b1 and an exit passage t1.
- the passage t1 forms the connection to an intermediate chamber T (or Transfer chamber), which has only one entry, namely the Passage t1, and an outlet t2 (not visible) having.
- A is arranged diametrically to T. corresponding intermediate chamber T 'with an access t1' and an exit t2 '.
- FIG. 6 shows a second embodiment of the Mixer structure according to the invention, in pairs existing rearrangement chambers S1, S2 'and S1', S2 are immediately adjacent.
- Fig. 10 shows another means by which a contribution to The object of the invention can be achieved can. It is the following: most of the Passages between neighboring mix-active chambers are laterally limited by the tube 10; to Flow control are individual passages by a rib 11 arranged in the tube 10 limited. Through this rib 11 is mixed material that along the pipe wall flows into the interior of the pipe 10 redirected. This improves the mixing quality.
- Figures 1 to 12 relate to mixers whose Mixing chambers are arranged in four strands. Such a mixer corresponds to the first Embodiment that in the aforementioned Registration has been described; he is in the schematic representation chosen there again in Fig. 13 shown. The other two embodiments are shown in Figures 14 and 15.
- Fig. 13 the two upper levels represent the limits between adjacent axial sections that represent the Have mixing elements. There are two open ones as well as two covered by deflection disks 3, 3 ' Partial areas; and the open partial areas 4, 4 ' offset from each other.
- the lower level gives the designations A, B, C and D of the four chambered Strands on. The same applies to the mixer Figures 14 and 15.
- Mixers according to Fig. 14 contain bundles of nine in Strands arranged in the direction of the tube, six of these strands, namely A, C, B, D, B 'and C', contain mixing-effective chambers and the remaining three Strands that are not labeled, intermediate chambers contain the indirect connections between produce mixing-effective chambers.
- the in the corner strands have arranged intermediate chambers - like the one above called transfer chambers T and T '- two each Passages to neighboring chambers.
- the intermediate chambers the central strand each contain four Passages that are arranged in a ring.
- Mixers according to Fig. 15 contain bundles of sixteen in Strands arranged in the direction of the tube, being eight of these strands, namely A, C, B, D, A ', B', C 'and D', contain mixing-effective chambers and the remaining eight Strands contain intermediate chambers that are indirect Establish connections between mixing-effective chambers.
- the intermediate chambers point again as in the example of Fig. 14 two or four passes to neighboring Chambers on.
- the mixer according to the invention can be manufactured that the bundle of chambered strands A, B, ... in shape a monolithic, especially by injection molding manufactured structure is present.
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)
- Disintegrating Or Milling (AREA)
- Accessories For Mixers (AREA)
Description
- Fig. 1
- einen Abschnitt einer Mischerstruktur, die nur mischwirksame Kammern aufweist,
- Fig. 2
- den geometrische Aufbau der Mischerstruktur gemäss Fig.1,
- Fig. 2a
- einen Querschnitt durch die Struktur der Fig.2,
- Fig. 3
- eine erste Modifikation der in Fig.1 gezeigten Mischerstruktur,
- Fig. 4
- eine zweite Modifikation,
- Fig. 5
- eine erste erfindungsgemässe Mischerstruktur mit Umlagerungskammern,
- Fig. 6
- eine zweite erfindungsgemässe Mischerstruktur mit Umlagerungskammern,
- Fig. 7
- eine Abwicklung der an der Peripherie gelegenen Kanten der Mischerstruktur gemäss Fig.1 in die Ebene,
- Fig. 8
- eine entsprechende Abwicklung für eine Mischerstruktur gemäss Fig.5,
- Fig. 9
- eine Abwicklung für eine Mischerstruktur gemäss Fig.6,
- Fig. 10
- eine Mischerstruktur mit einem zusätzlichen vorteilhaften Strukturelement,
- Fig. 11
- eine erste seitlich verstärkte Mischerstruktur,
- Fig. 12
- eine zweite Mischerstruktur mit seitlicher Verstärkung,
- Fig. 13
- eine schematische Darstellung zu einer Mischerstruktur mit einem Bündel von vier gekammerten Strängen,
- Fig. 14
- eine schematische Darstellung zu einer Mischerstruktur mit neun gekammerten Strängen und
- Fig. 15
- eine schematische Darstellung zu einer Mischerstruktur mit sechzehn gekammerten Strängen.
Claims (10)
- Statischer Mischer mit einem Bündel von gekammerten Strängen (A, B, ...), die zumindest zu einem Teil mischwirksame Kammern (A1, A2, ...) umfassen, wobei das Bündel in einem Rohr angeordnet ist, die mischwirksamen Kammern sich in Richtung (5) des Rohrs jeweils zwischen zwei geschlossenen Enden (e1, e2) erstrecken und zwei zueinander benachbarte Seitenwände der mischwirksamen Kammer (C2) vier wechselständig angeordnete Durchgänge (a1, b1, a2, b2) enthalten, welche Verbindungen zu zwei stromaufwärts (A1, B1) beziehungsweise zu zwei stromabwärts liegenden Kammern (A2, B2) herstellen,
wobei ferner zwischen mindestens zwei Abschnitten des statischen Mischers, die beide mischwirksame Kammer enthalten, Kammern angeordnet sind, nämlich Umlagerungskammern (S1, S1', S2, S2'), die zwei geschlossene Enden und drei seitliche Durchgänge zu benachbarten Kammern aufweisen. - Mischer nach Anspruch 1, dadurch gekennzeichnet, dass die Umlagerungskammern (S1, S1', S2, S2') paarweise verbunden auftreten und über jeweils einen der Durchgänge eine direkte oder indirekte Verbindung zwischen ihnen gegeben ist.
- Mischer nach Anspruch 2, dadurch gekennzeichnet, dass die Paarverbindungen zumindest einzelner Umlagerungskammern indirekt über eine Zwischenkammer (T) gegeben ist, welche zwei geschlossene Enden und zwei seitliche Durchgänge aufweist.
- Mischer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Bündel vier gekammerte Stränge (A, B, C, D) aufweist, alle mischwirksamen Kammern (A1, ...) im wesentlichen gleich ausgebildet sind und benachbarte, über Kammerdurchgänge verbundene Stränge Kammern enthalten, die jeweils in Richtung des Rohrs um eine halbe Kammerlänge gegeneinander versetzt angeordnet sind.
- Mischer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Bündel neun gekammerte Stränge (A, B, B', C, C', D, ...) aufweist, sechs dieser Stränge mischwirksame Kammern umfassen und die restlichen drei Stränge Zwischenkammern enthalten, die indirekte Verbindungen zwischen mischwirksamen Kammern herstellen.
- Mischer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Bündel sechzehn gekammerte Stränge (A, A', B, B', C, C', D, D', ...) aufweist, acht dieser Stränge mischwirksame Kammern umfassen und die restlichen acht Stränge Zwischenkammern enthalten, die indirekte Verbindungen zwischen mischwirksamen Kammern herstellen.
- Mischer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die meisten der Durchgänge (a1, ...) zwischen benachbarten mischaktiven Kammern (A1, ...) seitlich durch das Rohr (10) begrenzt sind und dass zur Strömungslenkung einzelne der Durchgänge jeweils durch eine bei dem Rohr angeordnete Rippe (11) begrenzt sind.
- Mischer nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Kammern (A1, ...) im wesentlichen quaderförmig und die Durchgänge (a1, ...) im wesentlichen rechteckig sind.
- Mischer nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Bündel der gekammerten Stränge (A, ...) durch Streifen (13) verstärkt sind, die an der Peripherie des Bündels in Richtung des Rohrs (10) angeordnet sind.
- Mischer nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Bündel der gekammerten Stränge (A, ...) in Form einer monolithischen, insbesondere durch Spritzguss hergestellten Struktur vorliegt.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59605822T DE59605822D1 (de) | 1996-07-05 | 1996-07-05 | Statischer Mischer |
EP96810441A EP0815929B1 (de) | 1996-07-05 | 1996-07-05 | Statischer Mischer |
ES96810441T ES2151650T3 (es) | 1996-07-05 | 1996-07-05 | Mezclador estatico. |
AT96810441T ATE195889T1 (de) | 1996-07-05 | 1996-07-05 | Statischer mischer |
DE29623909U DE29623909U1 (de) | 1996-07-05 | 1996-07-05 | Statischer Mischer mit einem Bündel von gekammerten Strängen |
US08/871,317 US5851067A (en) | 1996-07-05 | 1997-06-09 | Static mixer with a bundle of chambered strings |
JP15398997A JP4031556B2 (ja) | 1996-07-05 | 1997-06-11 | 複数のチャンバ・ストリングの集合体を有する静攪拌装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96810441A EP0815929B1 (de) | 1996-07-05 | 1996-07-05 | Statischer Mischer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0815929A1 EP0815929A1 (de) | 1998-01-07 |
EP0815929B1 true EP0815929B1 (de) | 2000-08-30 |
Family
ID=8225644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96810441A Expired - Lifetime EP0815929B1 (de) | 1996-07-05 | 1996-07-05 | Statischer Mischer |
Country Status (6)
Country | Link |
---|---|
US (1) | US5851067A (de) |
EP (1) | EP0815929B1 (de) |
JP (1) | JP4031556B2 (de) |
AT (1) | ATE195889T1 (de) |
DE (1) | DE59605822D1 (de) |
ES (1) | ES2151650T3 (de) |
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- 1996-07-05 ES ES96810441T patent/ES2151650T3/es not_active Expired - Lifetime
- 1996-07-05 DE DE59605822T patent/DE59605822D1/de not_active Expired - Lifetime
- 1996-07-05 EP EP96810441A patent/EP0815929B1/de not_active Expired - Lifetime
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- 1997-06-09 US US08/871,317 patent/US5851067A/en not_active Expired - Lifetime
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WO2022195019A1 (en) | 2021-03-18 | 2022-09-22 | Sulzer Management Ag | A process of continuously manufacturing a poly(hydroxy acid) copolymer with tunable molecular weight, structure and composition |
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Also Published As
Publication number | Publication date |
---|---|
JP4031556B2 (ja) | 2008-01-09 |
US5851067A (en) | 1998-12-22 |
JPH1057791A (ja) | 1998-03-03 |
EP0815929A1 (de) | 1998-01-07 |
ATE195889T1 (de) | 2000-09-15 |
ES2151650T3 (es) | 2001-01-01 |
DE59605822D1 (de) | 2000-10-05 |
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