EP0478497B1 - Statischer Mischer mit rohrartigem Gehäuse - Google Patents
Statischer Mischer mit rohrartigem Gehäuse Download PDFInfo
- Publication number
- EP0478497B1 EP0478497B1 EP91810656A EP91810656A EP0478497B1 EP 0478497 B1 EP0478497 B1 EP 0478497B1 EP 91810656 A EP91810656 A EP 91810656A EP 91810656 A EP91810656 A EP 91810656A EP 0478497 B1 EP0478497 B1 EP 0478497B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixer according
- plastic tube
- sealing surface
- mixer
- housing
- 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 description 5
- 239000004033 plastic Substances 0.000 claims description 28
- 229920003023 plastic Polymers 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 27
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 239000013466 adhesive and sealant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000035484 reaction time Effects 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
Definitions
- the invention relates to a static mixer with a tubular housing, at least one mixing element arranged therein and end connections on both sides.
- Such mixers are used for the continuous mixing, dispersing and homogenizing of hardeners, additives, accelerators, reactors and paints in resins, adhesives and sealants. This means that mixing performance can be achieved with a low weight and low volume of the mixer with good reproducibility of the mixing quality and low heat input.
- Such mixing devices are e.g. known from CH-A-642 564.
- This object is achieved according to the invention with a static mixer according to claim 1.
- the interchangeable plastic pipe, to which the material to be mixed does not stick, enables the mixer to be easily dismantled into its individual parts and thus simple cleaning and reuse of the mixing elements with a new plastic pipe.
- the annular sealing surface seals the carrier sealing ring against the supporting tubular housing, so that no reactive resin can get between the housing and the plastic tube, which could prevent the plastic tube from being pulled out.
- the support surface of the carrier sealing ring also serves to support the mixing elements against the high pressure forces that occur during operation.
- the annular sealing surface can be conical, preferably with a cone angle to the tube axis of 10 ° to 30 °.
- Other favorable designs of the sealing surface can have roughening, corrugation, scoring or a thread for screwing the plastic tube onto the carrier sealing ring.
- a tapered thread in particular means that a relatively soft plastic tube can be fixed on the carrier sealing ring so strongly that even high pressure forces do not impair the sealing effect.
- the plastic tube can also have an inner cone at the end to achieve intimate contact with the carrier sealing ring when assembling the mixer.
- the plastic tube can advantageously consist of non-adhesive polyolefins such as PE or PP or it can have an inert surface layer, for example made of PTFE, so that it can also be easily removed from hardened resins and adhesives.
- a longitudinal groove as a predetermined breaking point in the plastic tube can make it easier to cut open after use.
- a metallic version of the seal between the carrier sealing ring and the end connections is permanent and easy to clean. Mixing elements with crossing webs, as described, for example, in CH-A-642 564 and known as Sulzer SMX mixers, are particularly efficient.
- Fig. 1 shows a disassemblable mixer according to the invention with a pressure-resistant, load-bearing steel tube as the housing 2, an inserted, replaceable plastic tube 3 as a cheap consumable, static mixing elements 11 inserted therein, a carrier sealing ring 4 each, and with end connections 5 and 6 on both sides which supply lines and outlet nozzles can be connected.
- This structure enables simple, quick assembly, disassembly, cleaning and reuse of the mixer.
- the mode of operation of the carrier sealing ring 4 is of crucial importance here.
- Its support surface 8 absorbs the high pressure forces of the mixing elements of, for example, 200 bar, while at the same time the annular sealing surface 7, with a suitable shape, ensures intimate contact with the more flexible plastic pipe.
- the plastic tube 3 is plugged or screwed onto this sealing surface on both sides.
- the connecting elements here clamping ring screw connections 13, are then tightened to such an extent that a load-bearing connection is created from the steel pipe 2 via the carrier sealing ring 4 to the end connection 5, 6.
- the plastic pipe itself then no longer has to absorb high pressure forces.
- Suitable shapes of the sealing surface 7 are, for example, slightly conical with an angle W1 of preferably 10 ° to 30 °.
- the intimate contact with the carrier sealing ring can be improved, depending on the type of plastic tube, by slight roughening, corrugation or scoring 17.
- a very practical variant with a conical thread 16, which also allows the use of softer plastic pipes, is shown in FIG. 2.
- the connection to the end connections is made here by means of the flanges 15, 16, with a metallic seal 22 between the carrier sealing ring 4 and the end connection 5 is achieved. The flow of the mixed medium is thus sealed against the outside and pressure-tight towards the plastic pipe.
- Fig. 3 shows a further variant with a screw 13 and an inner cone 18 at the ends of the plastic tube 3, which is pressed onto a cylindrical or conical sealing surface 7, also provides a secure seal.
- the plastic tube 3 here has a surface layer 19, e.g. made of PTFE or other inert material, which prevents the plastic pipe from sticking or being attacked by an aggressive mix. With a longitudinal groove (not shown) as the predetermined breaking point in the plastic tube, this can be easily separated after use and the mixing elements 11 can be removed.
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3036/90 | 1990-09-19 | ||
CH303690 | 1990-09-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0478497A1 EP0478497A1 (de) | 1992-04-01 |
EP0478497B1 true EP0478497B1 (de) | 1994-03-30 |
Family
ID=4247184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91810656A Expired - Lifetime EP0478497B1 (de) | 1990-09-19 | 1991-08-20 | Statischer Mischer mit rohrartigem Gehäuse |
Country Status (5)
Country | Link |
---|---|
US (1) | US5255974A (ja) |
EP (1) | EP0478497B1 (ja) |
JP (1) | JP3122181B2 (ja) |
CA (1) | CA2051482A1 (ja) |
DE (1) | DE59101271D1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69322826T2 (de) * | 1992-09-30 | 1999-06-10 | Tokai Rubber Ind Ltd | Mehrschichtiger Schlauch |
US5636981A (en) * | 1994-05-19 | 1997-06-10 | Lilly Engineering Company | Fuel oil burner |
US5516209A (en) * | 1994-11-15 | 1996-05-14 | Flint; Theodore R. | Disposable static mixing device with a reusable housing |
JP3144772B2 (ja) * | 1997-01-24 | 2001-03-12 | エスエムシー株式会社 | 管継手 |
ATE217543T1 (de) * | 1997-01-29 | 2002-06-15 | Sulzer Chemtech Ag | Modul zu einer statischen mischeinrichtung für ein verweilzeitkritisches, plastisch fliessfähiges mischgut |
US6623635B2 (en) * | 1999-10-15 | 2003-09-23 | Ronald L. Barnes | Assembly for purifying water |
US6105880A (en) * | 1998-01-16 | 2000-08-22 | The Sherwin-Williams Company | Mixing block for mixing multi-component reactive material coating systems and an apparatus using same |
USRE40407E1 (en) | 1999-05-24 | 2008-07-01 | Vortex Flow, Inc. | Method and apparatus for mixing fluids |
DE60229255D1 (de) | 2001-08-02 | 2008-11-20 | Lg Life Sciences Ltd | Verfahren zur herstellung von amino-geschützten 4-aminomethylene-pyrrolidin-3-on-derivaten, gemifloxacin und deren salze |
US20030058737A1 (en) * | 2001-09-25 | 2003-03-27 | Berry Jonathan Dwight | Mixer/flow conditioner |
JP2006010063A (ja) * | 2004-05-24 | 2006-01-12 | Nippon Steel Corp | 管端防食コア付樹脂ライニング鋼管およびその製造方法 |
US7906581B2 (en) * | 2007-09-05 | 2011-03-15 | Xerox Corporation | Method, apparatus and system for preparing adhesive-promoter-treated hot melt adhesives in continuous mode |
US9079227B2 (en) | 2013-04-08 | 2015-07-14 | Ronald L. Barnes | Sanitizing and cleaning process and apparatus |
GB2537902A (en) * | 2015-04-30 | 2016-11-02 | M-Flow Tech Ltd | Composite Fluid Conduit Assembly |
WO2018009272A1 (en) | 2016-07-05 | 2018-01-11 | Ineos Americas, Llc | Method and apparatus for recovering absorbing agents in acid gas treatment |
US10935171B1 (en) * | 2019-09-30 | 2021-03-02 | Tofle Co., Inc. | Connecting mechanism and tube assembly |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2322026A (en) * | 1943-06-15 | Gas mixer | ||
US2216846A (en) * | 1939-01-09 | 1940-10-08 | Evan L Lewis | Fuel mixing device |
US2457633A (en) * | 1946-02-21 | 1948-12-28 | Gustave A Borg | Sealing device |
NL136715C (ja) * | 1960-07-04 | |||
GB944705A (en) * | 1960-07-26 | 1963-12-18 | Unilever Ltd | Homogenising device and method |
US3294426A (en) * | 1965-04-19 | 1966-12-27 | L & L Mfg Company | Self-flaring tube coupling |
US3466068A (en) * | 1965-05-26 | 1969-09-09 | Inventex Gmbh | Sealing ring with circular cutting edges for pipe connection |
CH454443A (de) * | 1966-05-14 | 1968-04-15 | Seidl Fa Georg | Spritzgussmaschine mit im Zylinder angeordnetem Torpedo |
GB1180182A (en) * | 1968-03-05 | 1970-02-04 | Arens Controls | Improvements in or relating to Flexible Cable Conduit Joints |
US3722925A (en) * | 1971-03-25 | 1973-03-27 | Sybron Corp | Coupling and/or joining lined pipe |
US3738615A (en) * | 1971-11-08 | 1973-06-12 | Dow Chemical Co | Interfacial surface generator |
US3782694A (en) * | 1972-09-18 | 1974-01-01 | Western Controls Inc | Apparatus and method for mixing materials |
US4022249A (en) * | 1974-07-03 | 1977-05-10 | Wafilin B.V. | Fibrous tube for membrane filtration with a tearing member |
US4008072A (en) * | 1974-09-16 | 1977-02-15 | The Anaconda Company | Sulfidization reaction |
JPS589036Y2 (ja) * | 1974-11-14 | 1983-02-18 | マルヤスコウギヨウ カブシキガイシヤ | ジユシチユ−ブヨウツギテソウチ |
DE2642105C2 (de) * | 1976-09-18 | 1983-01-05 | Fryma-Maschinen AG, 4310 Rheinfelden | Statischer Mischer |
DE2746188A1 (de) * | 1977-10-14 | 1979-04-19 | Bayer Ag | Verfahren und vorrichtung zum mischen und auftragen reaktionsfaehiger stoffe |
US4189243A (en) * | 1978-01-25 | 1980-02-19 | Black Wesley F | In-line mud shearing apparatus |
HU179045B (en) * | 1979-08-31 | 1982-08-28 | Mta Mueszaki Kemiai Kutato Int | Process and equipment for the treatment of liquid and/or lump,solid materials with gases |
US4414184A (en) * | 1981-02-23 | 1983-11-08 | Union Carbide Corporation | Apparatus for mixing chemical components |
US4538920A (en) * | 1983-03-03 | 1985-09-03 | Minnesota Mining And Manufacturing Company | Static mixing device |
DE8322179U1 (de) * | 1983-08-01 | 1983-12-01 | Dsd Dillinger Stahlbau Gmbh, 6630 Saarlouis | Anschlussstueck einer fernwaermeleitung am eingang in ein gebaeude |
US4522504A (en) * | 1983-12-08 | 1985-06-11 | Pyles Division | Linear in-line mixing system |
CH664505A5 (de) * | 1984-03-05 | 1988-03-15 | Sulzer Ag | Statische mischeinrichtung, insbesondere fuer hochviskose kunststoffschmelzen verarbeitende maschinen. |
EP0191453A3 (de) * | 1985-02-14 | 1989-01-04 | Siemens Aktiengesellschaft | Einrichtung zur Verhinderung von Anlagerungen in Strömungsräumen für Reaktionsharze |
DE3622177A1 (de) * | 1986-07-02 | 1988-01-14 | Veba Oel Entwicklungs Gmbh | Vorrichtung zum mischen disperser stroeme vor ihrem eintritt in ein katalysatorbett |
US4964733A (en) * | 1986-08-20 | 1990-10-23 | Beloit Corporation | Method of and means for hydrodynamic mixing |
JPH0687099B2 (ja) * | 1986-10-08 | 1994-11-02 | 富士通株式会社 | レ−ザ光走査装置 |
US4907725A (en) * | 1987-01-12 | 1990-03-13 | Lancer Corporation | Liquid dispenser mixing nozzle |
IT1210407B (it) * | 1987-04-30 | 1989-09-14 | G F Srl | Lancia erogatrice per la omogenea miscelazione di prodotti solubili in acqua,come le cere per autoveicoli |
US4936689A (en) * | 1988-07-11 | 1990-06-26 | Koflo Corporation | Static material mixing apparatus |
US5068494A (en) * | 1990-06-27 | 1991-11-26 | Appleton Electric Company | Conduit connector for eccentrically dimensioned conduit |
-
1991
- 1991-08-20 DE DE91810656T patent/DE59101271D1/de not_active Expired - Fee Related
- 1991-08-20 EP EP91810656A patent/EP0478497B1/de not_active Expired - Lifetime
- 1991-09-04 US US07/754,739 patent/US5255974A/en not_active Expired - Fee Related
- 1991-09-16 CA CA002051482A patent/CA2051482A1/en not_active Abandoned
- 1991-09-18 JP JP03238263A patent/JP3122181B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE59101271D1 (de) | 1994-05-05 |
CA2051482A1 (en) | 1992-03-20 |
JP3122181B2 (ja) | 2001-01-09 |
US5255974A (en) | 1993-10-26 |
EP0478497A1 (de) | 1992-04-01 |
JPH04260430A (ja) | 1992-09-16 |
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