EP2566628A1 - Zerstäuber mit einem gittermischer - Google Patents
Zerstäuber mit einem gittermischerInfo
- Publication number
- EP2566628A1 EP2566628A1 EP11719471A EP11719471A EP2566628A1 EP 2566628 A1 EP2566628 A1 EP 2566628A1 EP 11719471 A EP11719471 A EP 11719471A EP 11719471 A EP11719471 A EP 11719471A EP 2566628 A1 EP2566628 A1 EP 2566628A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixer
- atomizer
- mixing elements
- paint
- tube
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
-
- 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
- B01F25/421—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 by moving the components in a convoluted or labyrinthine path
- B01F25/423—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 by moving the components in a convoluted or labyrinthine path by means of elements placed in the receptacle for moving or guiding the components
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
- B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
Definitions
- the invention relates to an atomizer, in particular a rotary atomizer, for the application of a multi-component coating agent.
- Rotary atomizers are usually used as application devices in modern paint shops for painting automotive body components, some of which can also apply multicomponent coatings consisting of a plurality of laminating components, such as a master paint and a hardener. It is important here that the various components of the multicomponent paint in the atomizer are mixed together as well as possible.
- the conventional rotary atomizers static Wen delmischer, which are also known as Kenics ® mixer. These spiral mixers have numerous spiral-shaped ones
- the invention is therefore based on the object to provide a correspondingly improved atomizer with a structurally integrated mixer.
- the invention includes the general technical teaching to use a different mixer type, namely a so-called lattice mixer, which has numerous mixing elements which are arranged interlaced in a grid-like manner.
- lattice mixers are known, for example, from US 2004/0114461 A1, so that the content of this document is attributable to the present description with regard to the construction and the mode of operation of a lattice mixer in its entirety.
- a common feature of the novel mixer according to the invention with the conventional spiral mixer is that it is static mixers in both cases. This means that the mixer itself has no moving parts, since the mixture is caused by the flow movement of the coating agent components to be mixed together.
- the new lattice mixer according to the invention differs from the conventional spiral mixer by the arrangement and design of the individual mixing elements.
- the helix mixer conventionally used comprises helical mixing elements which divert the coating medium flow in a spiral manner, wherein the mixing elements adjacent in the direction of flow each have opposite directions of deflection, whereby the mixture is effected.
- the lattice mixer used according to the invention preferably has elongate, straight, sharp-edged and rod-shaped mixing elements which consist of plastic and each have a substantially rectangular cross-section.
- these mixing elements each cause turbulences which lead to an effective mixing of the coating agent components to be mixed with one another.
- the individual mixing elements are arranged in a grid-like manner in one another.
- a plurality of rod-shaped mixing elements are in each case arranged together in one plane and thus form a grid, wherein a plurality of such lattices of a plurality of mixing elements are arranged interlocked.
- the individual mixing elements preferably have a certain angle of incidence relative to the flow direction. This means that the individual Mixing elements are not aligned parallel to the flow direction, since this would only lead to a low mixing effect.
- the angle of attack of the mixing elements with respect to the flow direction is greater than 20 °, 30 ° or 40 ° and / or less than 70 °, 60 ° or 50 °. In the preferred
- the angle of attack is substantially the same for all mixing elements. However, there is also the alternative possibility that the mixing elements have different angles of incidence.
- the mixer has a plurality of sections, which are arranged one behind the other in the flow direction and are flowed through in succession.
- the different sections may differ, for example, due to the orientation of the mixing elements.
- the angle of attack of the mixing elements can vary relative to the flow direction between the sections.
- the mixer has a total of more than 5, 6, 7, 8, 9, 10 or even more than 11 different sections.
- the immediately adjacent sections of the mixer are each designed differently, for example with regard to the angle of attack or the orientation and design of the mixing elements, wherein the respective uppermost section of the mixer again has the same structure.
- the mixer is preferably elongated in the flow direction and has a substantially cylindrical cross section, wherein the mixer is preferably arranged completely inside the atomizer. It is also important that the mixer preferably has a length in the flow direction, which is smaller than 10cm, 8cm or even 6cm. This advantageously makes it possible for the mixer to be arranged completely in the paint tube of the atomizer. The length of the mixer is therefore preferably smaller than the overall length of the paint tube of the atomizer.
- the atomizer according to the invention has a controllable main needle valve which selectively releases or blocks the coating medium flow.
- the atomizer therefore does not apply any coating agent, so that the valve position of the main needle valve determines whether the atomizer applies the coating agent or not.
- the mixer is in this case arranged upstream of the main needle valve, so that the ready-mixed coating agent is present at the main needle valve.
- the mixer is displaced as far upstream as possible to the main needle valve in order to minimize the distance between the downstream end of the mixer and the main needle valve. This is advantageous because it reduces the paint or solvent consumption during a color change or when rinsing.
- the length of the line between the downstream end of the mixer and the main needle valve is therefore preferably shorter than 10 cm, 6 cm, 5 cm, 4 cm, 3 cm, 2 cm or even shorter than learning.
- the advantages of the lattice mixer according to the invention in this case offer the possibility that the mixer is arranged completely in the paint tube, so that Under certain circumstances, can be dispensed with an additional mixer in the connection block of the atomizer, which was required in the conventional atomizer described above.
- the paint tube can also form the sheath of the usually cylindrical mixer, so that can be dispensed with an additional mixing tube for sheathing the mixer.
- the diameter of the mixer essentially corresponds to the diameter of the color tube, so that the mixer completely fills the cross section of the color tube.
- each of the two coating systems has several components, in particular a master paint and a hardener.
- Each of the two paint systems can then each be assigned a mixer to mix the components of the paint system with each other.
- the mixers for the different paint systems are arranged together in the paint tube, wherein the mixers for the different paint systems are preferably adjacent to one another with respect to the flow direction. Each mixer for the different paint systems then fills only a part of the cross section of the paint tube. Moreover, the various mixers are then preferably sheathed by a mixing tube to separate the various mixers. It should also be mentioned that the mixers for the different color systems can have different mixing properties, which are adapted to the properties of the respective color system in order to achieve the best possible mixing result.
- the mixers for the various paint systems are not arranged together in the paint tube.
- the mixer for the one paint system can be arranged in the paint tube, while the mixer for the other color system is outside the color tube, for example, in a valve or connection block of the atomizer upstream of the paint tube.
- the atomiser according to the invention can have a plurality of mixers, which may also be useful in general for optimizing the mixing result.
- the invention also encompasses the novel use of a lattice mixer with a plurality of lattice-like intermeshed mixing elements for mixing a plurality of components of a coating agent in an atomizer, in particular in a rotary atomizer.
- FIGS. 1 shows a schematic cross-sectional drawing of a rotary atomizer according to the invention with an integrated lattice mixer
- FIG. 2 shows a perspective view of the lattice mixer from the rotary atomizer according to FIG. 1,
- FIG. 3 a simplified diagram to clarify the
- FIG. 1 shows a rotary atomizer 1 according to the invention, which can be used, for example, for painting motor vehicle body components, wherein the rotary atomizer 1 is of conventional construction, so that a detailed description of the structure and mode of operation of the rotary atomizer 1 can be dispensed with.
- the rotary atomizer 1 has a color tube 2 which is fixed to a terminal block 3, wherein the color tube 2 is aligned coaxially to the axis of rotation of a bell-plate shaft 4 to supply the coating agent to be applied.
- the invention now provides that a grate mixer 5 is arranged in the paint tube 2 in order to mix the various components (for example base lacquer and hardener) of the coating composition with one another.
- a grate mixer 5 is arranged in the paint tube 2 in order to mix the various components (for example base lacquer and hardener) of the coating composition with one another.
- the lattice mixer 5 has numerous elongated, rod-shaped, sharp-edged mixing elements 6, which are arranged interlaced in a grid shape, wherein the mixing elements 6 generate turbulence in the paint tube 2, resulting in a good mixing.
- the lattice mixer consists of a total of twelve sections 7, 8, which are arranged one behind the other in the flow direction, and are flowed through in succession.
- the different sections 7, 8 of the lattice mixer 5 differ here by the orientation of the individual mixing elements 6, as can be seen from the perspective view in FIG.
- FIG. 3 shows a schematic diagram to clarify the structure of a rotary atomizer 9 according to the invention, which is suitable for the application of two different paint systems, wherein the first paint system consists of a first paint sprayer
- the rotary atomizer has two main needle valves 10, 11 and in each case a lattice mixer 12, 13, wherein the two lattice mixers 12, 13 are arranged together next to one another in a paint tube 14 of the rotary atomizer 9.
- the lattice mixer 12 mixes the first stock paint SL1 with the first hardener H1
- the other lattice mixer 13 mixes the second stock paint SL2 with the second hardener H2.
- the two lattice mixers 12, 13 in this case correspond in structure and function to the lattice mixer 5 according to FIGS. 1 and 2.
- connection block 15 with integrated valves.
- the two lattice mixers 12, 13 are arranged upstream of the associated main needle valves 10, 11 at a very short distance K5cm. This is advantageous because the line section to be flushed between the lattice mixers 12, 13 and the associated main needle valves 10, 11 thereby has a low volume, so that the flushing agent losses and the lacquer losses are correspondingly small.
- FIG. 4 shows a modification of the exemplary embodiment according to FIG. 3, so that reference is made to the above description to avoid repetition, the same reference numerals being used for corresponding details.
- a special feature of this embodiment is the arrangement of the two lattice mixers 12, 13.
- the lattice mixer 12 is in this embodiment also within the color tube 14, whereas the other lattice mixer 13 is integrated into the terminal block 15.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11719471T PL2566628T5 (pl) | 2010-05-07 | 2011-05-04 | Rozpylacz z mieszadłem kratowym |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010019771A DE102010019771A1 (de) | 2010-05-07 | 2010-05-07 | Zerstäuber mit einem Gittermischer |
PCT/EP2011/002228 WO2011138028A1 (de) | 2010-05-07 | 2011-05-04 | Zerstäuber mit einem gittermischer |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2566628A1 true EP2566628A1 (de) | 2013-03-13 |
EP2566628B1 EP2566628B1 (de) | 2017-09-06 |
EP2566628B2 EP2566628B2 (de) | 2020-06-24 |
Family
ID=44170569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11719471.2A Active EP2566628B2 (de) | 2010-05-07 | 2011-05-04 | Zerstäuber mit einem gittermischer |
Country Status (8)
Country | Link |
---|---|
US (1) | US9539594B2 (de) |
EP (1) | EP2566628B2 (de) |
CN (1) | CN102883818B (de) |
DE (1) | DE102010019771A1 (de) |
ES (1) | ES2648137T5 (de) |
MX (1) | MX2012012740A (de) |
PL (1) | PL2566628T5 (de) |
WO (1) | WO2011138028A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010019771A1 (de) | 2010-05-07 | 2011-11-10 | Dürr Systems GmbH | Zerstäuber mit einem Gittermischer |
US9790836B2 (en) | 2012-11-20 | 2017-10-17 | Tenneco Automotive Operating Company, Inc. | Loose-fill insulation exhaust gas treatment device and methods of manufacturing |
DE102014004862A1 (de) | 2014-04-03 | 2015-10-08 | Dürr Systems GmbH | Mischer und entsprechendes Betriebsverfahren |
DE102015010158A1 (de) | 2015-07-03 | 2017-01-05 | Dürr Systems Ag | Applikationsgerät, insbesondere Rotationszerstäuber |
DE102015008659B4 (de) | 2015-07-03 | 2019-06-19 | Dürr Systems Ag | Beschichtungsmittelventil und Rotationszerstäuber |
DE102015008661A1 (de) | 2015-07-03 | 2017-01-05 | Dürr Systems Ag | Nadelventil |
FR3044567A1 (fr) * | 2015-12-08 | 2017-06-09 | Peugeot Citroen Automobiles Sa | Applicateur selectif de vernis pour carrosserie automobile |
DE102020128115A1 (de) | 2020-10-26 | 2022-04-28 | Dürr Systems Ag | Applikationsvorrichtung zum vorzugsweise teilgeboosterten Applizieren |
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-
2010
- 2010-05-07 DE DE102010019771A patent/DE102010019771A1/de not_active Withdrawn
-
2011
- 2011-05-04 US US13/696,460 patent/US9539594B2/en active Active
- 2011-05-04 WO PCT/EP2011/002228 patent/WO2011138028A1/de active Application Filing
- 2011-05-04 CN CN201180022213.9A patent/CN102883818B/zh active Active
- 2011-05-04 EP EP11719471.2A patent/EP2566628B2/de active Active
- 2011-05-04 ES ES11719471T patent/ES2648137T5/es active Active
- 2011-05-04 PL PL11719471T patent/PL2566628T5/pl unknown
- 2011-05-04 MX MX2012012740A patent/MX2012012740A/es unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2011138028A1 * |
Also Published As
Publication number | Publication date |
---|---|
PL2566628T5 (pl) | 2020-11-02 |
ES2648137T3 (es) | 2017-12-28 |
EP2566628B2 (de) | 2020-06-24 |
EP2566628B1 (de) | 2017-09-06 |
US9539594B2 (en) | 2017-01-10 |
ES2648137T5 (es) | 2021-02-22 |
DE102010019771A1 (de) | 2011-11-10 |
US20150122915A1 (en) | 2015-05-07 |
CN102883818B (zh) | 2016-01-06 |
PL2566628T3 (pl) | 2018-02-28 |
WO2011138028A1 (de) | 2011-11-10 |
CN102883818A (zh) | 2013-01-16 |
MX2012012740A (es) | 2012-11-21 |
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