EP0150716A2 - Dispositif de dosage et de mélange pour matières visqueuses à plusieurs constituants - Google Patents

Dispositif de dosage et de mélange pour matières visqueuses à plusieurs constituants Download PDF

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Publication number
EP0150716A2
EP0150716A2 EP85100095A EP85100095A EP0150716A2 EP 0150716 A2 EP0150716 A2 EP 0150716A2 EP 85100095 A EP85100095 A EP 85100095A EP 85100095 A EP85100095 A EP 85100095A EP 0150716 A2 EP0150716 A2 EP 0150716A2
Authority
EP
European Patent Office
Prior art keywords
mixing
tube
static
tubes
empty
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.)
Withdrawn
Application number
EP85100095A
Other languages
German (de)
English (en)
Other versions
EP0150716A3 (fr
Inventor
Peter Lückhoff
Klaus Peter Fischer
Holger Adolf
Bernd Johannisknecht
Hans-Joachim Rohde
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.)
Reinhardt Technik GmbH and Co
Original Assignee
Reinhardt Technik GmbH and Co
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 Reinhardt Technik GmbH and Co filed Critical Reinhardt Technik GmbH and Co
Publication of EP0150716A2 publication Critical patent/EP0150716A2/fr
Publication of EP0150716A3 publication Critical patent/EP0150716A3/fr
Withdrawn legal-status Critical Current

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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
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements
    • 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
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • 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
    • B01F25/433—Mixing tubes wherein the shape of the tube influences the mixing, e.g. mixing tubes with varying cross-section or provided with inwardly extending profiles
    • B01F25/4331—Mixers with bended, curved, coiled, wounded mixing tubes or comprising elements for bending the flow

Definitions

  • the invention relates to a metering and mixing device for highly viscous multi-component materials according to the preamble of claim 1.
  • Dosing and mixing devices are used for example for conveying, dosing, mixing and extruding highly viscous two-component materials for insulating glass sealing or for PU foam processing.
  • the parent component and the hardener are combined in one Mixing chamber attached to the base of the device.
  • the merged material is first mixed in a static mixing tube and then conveyed to the extrusion unit with a hose with a length of approx. 2.5 m.
  • the premixed material is mixed again with a static mixing tube and then discharged with a spray gun.
  • the hose with a length of 2.5 m or more is required so that, for example, an insulating glass pane that is not moved can be sealed all around in one operation.
  • the invention has for its object to develop a metering and mixing device for highly viscous two-component materials according to the preamble of claim 1 such that a homogeneous mixed material is obtained with a small volume to be rinsed before a longer service life.
  • longitudinal mixing is forced into empty tubes which are arranged between static mixing tubes of the mixing and extruding device.
  • the empty pipes are connected at both ends to a static mixer via mixing heads, in which the material flow is deflected by 180 °; in other words, the material runs alternately through static mixing tubes and empty tubes in a "meandering" way. Due to the turbulence caused by the deflection, longitudinal mixing, which compensates for the fluctuations in the mixing ratio due to the dead centers of the piston pumps, is already achieved in a comparatively short way in the empty pipes. This means that the volume that has to be flushed after finishing the work is small.
  • the additional "S" -shaped deflection provided in accordance with claim 8 when entering or exiting the mixing heads increases the longitudinal turbulence and thus further improves the longitudinal mixing.
  • the small volume of the parts to be cleaned after completion of the work predestines the mixing and extruding unit designed according to the invention to be rinsed with the parent component instead of with a solvent (for example in the case of a two-component mixture).
  • This flushing process which has already been proposed per se, has so far not been widely used due to the high material losses and the associated high costs.
  • the small volume to be flushed due to which the material losses reach the order of magnitude of two 400 g at most, allows the device to be flushed with the parent component in an environmentally friendly manner instead of with a solvent at a reasonable cost.
  • the multi-component metering and mixing device according to the invention for highly viscous multi-component materials has the advantage that the mixing and extruding unit according to one of claims 1 to 9 easily to existing devices in which previously the mixing chamber and a first static mixer before Working hose are arranged and the flushing was carried out with a solvent, can be retrofitted so that existing devices can be operated in an environmentally friendly manner.
  • mixing and extruding unit designed according to the invention in a multicomponent metering and mixing device for highly viscous multicomponent materials, in which rinsing with the base component and the "rinsing material" is returned to an intermediate container or the storage container for the base component .
  • Figure 1 shows the basic structure of a two-component dosing and mixing device for highly viscous two-component ten materials according to an embodiment of the invention.
  • a piston pump 1 conveys the base component from a storage container 2 via a hose line 3 and a piston pump 4 the hardener from a storage container 5 via a hose line 6 to a mixing and extrusion unit 7, which can be connected, for example, to a spray gun .
  • the piston pumps 1 and 4 for conveying and metering the base component and the hardener can be designed in the known manner as double-acting piston pumps.
  • the pumps are arranged in a metering frame and mechanically interlocked with one another via a lever beam which is infinitely adjustable within the metering range of the pumps to adjust the mixing ratio. This construction of the pumps is known, so that there is no need to go into this in the following.
  • FIG. 2 shows part of a mixing and extruding unit designed according to the invention.
  • the mixing and extruding unit 7 has a first mixing head 8, a first static mixing tube 9, a second mixing head 10, an empty tube 11 and a second static mixing tube 12.
  • the parent component and the hardener which have been brought together from the hose lines 3 and 6 in a mixing chamber (not shown), enter the first mixing head 8, where they are redirected twice in a double knee 13 of the inlet channel with small radii of curvature by 90 ° without them the direction of flow changes, flow through the first static mixing tube 9 and then enter the second mixing head 10.
  • the mixture is in the second mixing head 10 through 180 ° in a channel without mixing with a
  • the radius of curvature is redirected and flows through the empty tube 11.
  • the mixture is redirected again in the first mixing head in a channel with a small radius of curvature and without a mixing insert by 180 ° and flows through the second mixing tube 12.
  • the mixture After flowing through the "double knee" 14 in the second Mixing head 12, which forces an “S” deflection of the mixture, the mixture emerges and can be fed, for example, to a spray gun or another extrusion unit.
  • the material brought together in the mixing chamber is initially mixed essentially only transversely, while longitudinal mixing takes place in the empty tube 11.
  • This longitudinal mixing is strongly supported by the turbulent flow, which is caused by the two 180 ° deflections in the mixing heads and the "S" deflection.
  • Another factor in the good mixing is the two 90 ° deflections in the double knees of the mixing heads after the combined material enters and before the material mixture exits.
  • the static mixing tubes can be constructed in a manner known per se, so that their construction need not be discussed in more detail.
  • the length of the individual tubes is preferably between 25 and about 50 cm in the exemplary embodiment shown, so that only a small volume has to be rinsed in the rinsing process described below, and thus the rinsing losses are low.
  • a 2-way valve 15 is switched over, so that the hardener no longer enters the hose line 6 into the mixing chamber in which the two materials are brought together, but is guided back into the storage container 5 via a hose line 16 .
  • the hardener therefore circulates during the rinsing phase.
  • the parent component continues to enter from the hose line 3 into the mixing chamber (not shown in detail) and displaces the mixing chamber 8, the mixing head 8, the static mixing tube 9, the second mixing head 10, the empty tube 11, the 180.degree. Pipe bend of the first mixing head 8, the second stasch mixing tube 12 and the spray gun and after the entire mixture of materials in the mixing and extrusion unit has emerged from the spray gun and the unit 7 contains only the base component, the rinsing process is ended When the work is started, the "pure" parent component in the mixing and extruding unit 7 has to be displaced by a material mixture with a correct mixing ratio before the sealing of insulating glass panes can be started.
  • restart process is low and is approximately in the order of magnitude of 400 g at the start and end of work. This makes it possible to rinse with the parent component in an environmentally friendly manner at about the same cost as in known devices which are rinsed with solvents.
  • the mixing and extruding unit according to the invention can advantageously be used in a two-component metering and mixing device for highly viscous two-component materials with recycling of the base component used for rinsing.
  • a two-component metering and mixing device for highly viscous two-component materials with recycling of the base component used for rinsing.
  • Such a device is manufactured, for example, by Reinhardt-Technik and is described in the older German patent application P 33 177 34.1.
  • the use of the mixing and extruding unit according to the invention makes it possible to significantly reduce the size of the intermediate container which is used for the intermediate storage of the materials expelled at the end of work and at the start of work,
  • mixing and extruding unit constructed according to the invention can of course also be used in a device in which rinsing is carried out with a detergent such as methylene chloride.
  • the dosing and mixing device constructed according to the invention can of course not only be used for mixing, dosing and extruding two-component materials for insulating glass sealing, but also of any highly viscous two- and multi-component materials, such as PU foam materials.
EP85100095A 1984-01-05 1985-01-07 Dispositif de dosage et de mélange pour matières visqueuses à plusieurs constituants Withdrawn EP0150716A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3400280 1984-01-05
DE3400280A DE3400280C1 (de) 1984-01-05 1984-01-05 Dosier- und Mischvorrichtung fuer hochviskose Zweikomponenten-Materialien

Publications (2)

Publication Number Publication Date
EP0150716A2 true EP0150716A2 (fr) 1985-08-07
EP0150716A3 EP0150716A3 (fr) 1987-06-03

Family

ID=6224413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100095A Withdrawn EP0150716A3 (fr) 1984-01-05 1985-01-07 Dispositif de dosage et de mélange pour matières visqueuses à plusieurs constituants

Country Status (2)

Country Link
EP (1) EP0150716A3 (fr)
DE (1) DE3400280C1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704452A1 (fr) * 1993-04-30 1994-11-04 Electricite De France Dispositif mélangeur de fluide et échangeur de chaleur comprenant un tel dispositif.
WO2003076081A1 (fr) * 2002-03-12 2003-09-18 Chemque, Incorporated Appareil et procede de melange et de distribution de composants d'une composition
WO2006103023A1 (fr) * 2005-03-31 2006-10-05 Daimlerchrysler Ag Dispositif de melange et dispositif de pulverisation
CN116285817A (zh) * 2023-03-29 2023-06-23 苏州中科科仪技术发展有限公司 一种双组分环氧胶混胶方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH395285A (de) * 1962-04-28 1965-07-15 Liggenstorfer Winterthur Elekt Verfahren und Vorrichtung zur Zuführung des Imprägniergemisches zu einer Träufelstelle
US3623704A (en) * 1970-08-03 1971-11-30 Dow Corning Static mixing device
DE2202635A1 (de) * 1971-01-25 1972-09-07 Kenics Corp Vorrichtung und Verfahren zur Herstellung von Dispersionen
FR2134377A1 (fr) * 1971-04-29 1972-12-08 Sulzer Ag
FR2296505A1 (fr) * 1974-12-31 1976-07-30 Chevalier Philippe Appareil pour l'injection ou l'enduction de resines synthetiques polymerisables
JPS55119428A (en) * 1979-03-09 1980-09-13 Toray Ind Inc Continuous treating device of liquid
EP0030500A1 (fr) * 1979-12-05 1981-06-17 Jean Gignier Appareillage pour la réalisation de réactions chimiques et procédé utilisant ledit appareillage
JPS56124432A (en) * 1980-03-06 1981-09-30 Yamashiro Seiki Seisakusho:Kk Mixing apparatus
GB2086249A (en) * 1980-10-13 1982-05-12 Toyo Engineering Corp Mixing apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH395285A (de) * 1962-04-28 1965-07-15 Liggenstorfer Winterthur Elekt Verfahren und Vorrichtung zur Zuführung des Imprägniergemisches zu einer Träufelstelle
US3623704A (en) * 1970-08-03 1971-11-30 Dow Corning Static mixing device
DE2202635A1 (de) * 1971-01-25 1972-09-07 Kenics Corp Vorrichtung und Verfahren zur Herstellung von Dispersionen
FR2134377A1 (fr) * 1971-04-29 1972-12-08 Sulzer Ag
FR2296505A1 (fr) * 1974-12-31 1976-07-30 Chevalier Philippe Appareil pour l'injection ou l'enduction de resines synthetiques polymerisables
JPS55119428A (en) * 1979-03-09 1980-09-13 Toray Ind Inc Continuous treating device of liquid
EP0030500A1 (fr) * 1979-12-05 1981-06-17 Jean Gignier Appareillage pour la réalisation de réactions chimiques et procédé utilisant ledit appareillage
JPS56124432A (en) * 1980-03-06 1981-09-30 Yamashiro Seiki Seisakusho:Kk Mixing apparatus
GB2086249A (en) * 1980-10-13 1982-05-12 Toyo Engineering Corp Mixing apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 4, Nr. 178 (C-34)[660], 10. Dezember 1980; & JP-A-55 119 428 (TORAY K.K.) 13-09-1980 *
PATENTS ABSTRACTS OF JAPAN, Band 5, Nr. 204 (C-85)[876], 24. Dezember 1981; & JP-A-56 124 432 (YAMASHIRO SEIKI SEISAKUSHO K.K.) 30-09-1981 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704452A1 (fr) * 1993-04-30 1994-11-04 Electricite De France Dispositif mélangeur de fluide et échangeur de chaleur comprenant un tel dispositif.
WO2003076081A1 (fr) * 2002-03-12 2003-09-18 Chemque, Incorporated Appareil et procede de melange et de distribution de composants d'une composition
US6705756B2 (en) 2002-03-12 2004-03-16 Chemque, Incorporated Apparatus and method for mixing and dispensing components of a composition
WO2006103023A1 (fr) * 2005-03-31 2006-10-05 Daimlerchrysler Ag Dispositif de melange et dispositif de pulverisation
CN116285817A (zh) * 2023-03-29 2023-06-23 苏州中科科仪技术发展有限公司 一种双组分环氧胶混胶方法
CN116285817B (zh) * 2023-03-29 2023-09-26 苏州中科科仪技术发展有限公司 一种双组分环氧胶混胶方法

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Publication number Publication date
DE3400280C1 (de) 1985-03-14
EP0150716A3 (fr) 1987-06-03

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