WO2011134973A1 - Method for producing a filler-containing spray jet - Google Patents
Method for producing a filler-containing spray jet Download PDFInfo
- Publication number
- WO2011134973A1 WO2011134973A1 PCT/EP2011/056608 EP2011056608W WO2011134973A1 WO 2011134973 A1 WO2011134973 A1 WO 2011134973A1 EP 2011056608 W EP2011056608 W EP 2011056608W WO 2011134973 A1 WO2011134973 A1 WO 2011134973A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- filler
- flow channel
- channel
- reactive
- Prior art date
Links
- 239000000945 filler Substances 0.000 title claims abstract description 84
- 239000007921 spray Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 49
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims description 94
- 239000000203 mixture Substances 0.000 claims description 67
- 238000002156 mixing Methods 0.000 claims description 52
- 238000004140 cleaning Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 238000010304 firing Methods 0.000 claims description 12
- 229920005862 polyol Polymers 0.000 claims description 9
- 150000003077 polyols Chemical class 0.000 claims description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000003570 air Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000007787 solid Substances 0.000 description 15
- 239000000654 additive Substances 0.000 description 9
- 239000004814 polyurethane Substances 0.000 description 8
- 229920002635 polyurethane Polymers 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 238000009736 wetting Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 229920000877 Melamine resin Polymers 0.000 description 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 4
- 229920005749 polyurethane resin Polymers 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 239000011814 protection agent Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000006199 nebulizer Substances 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/76—Mixers with stream-impingement mixing head
- B29B7/7663—Mixers with stream-impingement mixing head the mixing head having an outlet tube with a reciprocating plunger, e.g. with the jets impinging in the tube
- B29B7/7668—Mixers with stream-impingement mixing head the mixing head having an outlet tube with a reciprocating plunger, e.g. with the jets impinging in the tube having a second tube intersecting the first one with the jets impinging in the second tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/76—Mixers with stream-impingement mixing head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/404—Mixers using gas or liquid agitation, e.g. with air supply tubes for mixing material moving continuously therethrough, e.g. using impinging jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
Definitions
- the present invention relates to a process for producing a filler-containing spray jet for producing layers and / or moldings from a reactive resin in the weft operation.
- the mixing of the liquid reactive components takes place in a mixing head, wherein basically between high pressure (HD) and low pressure (LP) mixture can be distinguished.
- high pressure (HD) and low pressure (LP) mixture can be distinguished.
- the components are mixed in a pressure range up to 40 bar.
- the reactive components are released in the desired ratio in the mixing chamber.
- this mixing then takes place by stirring, for example with an intensive mixer, or static mixer instead.
- the reactive components circulate in a pressure range up to 250 bar. Upon initiation of a shot, the individual reactive components meet with the corresponding high pressure in the mixing chamber and thereby mix.
- the spray application is realized both in the HD and in the ND process via downstream atomizer systems.
- the additives used herein are dispersed in the polyol component of the polyurethane.
- the problem here is that the additives are not soluble in the corresponding component.
- the dispersion must therefore be stirred constantly to avoid sedimentation of the solid in the reservoir.
- melamine in a Polyoldispersion also shows that after sedimentation, the melamine cakes quickly, which makes redispersing much harder, sometimes even impossible.
- Hollow glass spheres may, for example, float in the reactive component, swelling in the case of wood flour.
- the physical properties, for example the viscosity, of the corresponding liquid reactive component are also changed by the presence of an additive, as a result of which the miscibility of the reactive components is usually adversely affected.
- shear forces act on the additives. As a result, they are crushed, which can change their effect in the resin uncontrolled. Sometimes chemical side reactions of the additives with the reactive components can not be excluded.
- An alternative to the production of filler-containing layers or moldings from a reactive resin is the injection process, in which a filler-containing gas stream is passed into a stream of the reactive components.
- a spray jet is also understood to mean a jet which consists essentially of fine particles (droplets) of a reactive mixture dispersed in a gas stream, ie, at least two reactive components ,
- High solids contents with small particle sizes provide the reaction mixture with a large surface area which, due to the short residence time in the mixing zone, can not be sufficiently mixed and wetted with the reaction mixture.
- solid particles with a high specific weight concentrate due to centrifugal forces on the wall region of the flow channel and can only to a limited extent be mixed with the reaction mixture due to the compression.
- DE 10 2007 016 785 A1 relates to a method and an apparatus for producing molded parts, comprising a layer of polyurethane in the weft operation, in which a gas stream is introduced into the flow channel of the spraying device at at least two positions.
- DE 44 17 596 A1 describes a process for producing a mixture consisting of reactive plastic components and fillers.
- the plastic components are mixed under high pressure in a mixing chamber and get out of this as a plastic component mixture in a arranged at an angle to the mixing chamber outlet pipe, in which the fillers are registered and wetted intensively with the plastic component mixture.
- the inlet opening for the solid in the flow channel faces the inlet opening for the plastic mixture. H here, however, only fine-grained and free-flowing solids can be processed, which do not tend to clump.
- EP 0 771 259 B1 comprises an apparatus for producing plastic parts penetrated with long reinforcing fibers. Here a wetting of the solid and liquid components takes place at the discharge itself, but it is not a spray.
- the object of the invention is therefore a process for the production of layers and / or moldings from a reactive resin in the weft operation, with which different fillers are also present in a high proportion relative to the Amount of reactive resin in both the high pressure (HD) - and in the low pressure (ND) method can be sprayed processed.
- a uniform wetting of the filler (s) and also a homogeneous distribution of the filler (s) in the final product must be ensured.
- Another object of the present invention is that the self-cleaning of a flow channel containing at least filler and transport gas is ensured.
- the object underlying the present invention is achieved by a method for producing a filler-containing resin spray jet, which is characterized in that a. at least one filler and at least one transport gas are passed via at least one inlet 1 into a filler I ka na I 6 and the filler-gas mixture from the Ful Istoff ka na I 6 is passed into a flow channel 9,
- step d according to the invention comprises the cleaning of the mixing chamber 5 in a manner known per se by means of a liquid cleaning agent and / or compressed air.
- Fig. 1 shows schematically a device which is suitable for carrying out the method according to the invention.
- the ejector 2 and the ejector 8 are moved from the firing position into their cleaning position one after the other for cleaning the device according to the invention.
- the firing position means that the ejector 2 is in the Si n ne the flow direction in front of the at least two inlet openings 4, so that these and the mixing chamber 5 are not obscured by the ejector 2.
- the ejector 8 is in the firing position in the direction of the flow direction before the at least one Inlet 1.
- flow channel 9 and filler channel 6 can thus take place a transport and mixing of the components.
- the mixture can pass freely to the outlet opening 7 and the reactive resin filler mixture are discharged in the shot mode.
- the mixing chamber 5 After firing the ejector 2 and the ejector 8 are moved successively in the cleaning position in the HD process. As a result, the mixing chamber 5, the Fül Istoff ka na I 6 and the flow channel 9 are mechanically cleaned, the mixing chamber 5 are cleaned by the ejector 2 and the filler channel 6 and the flow channel 9 through the ejector 8.
- the mixing chamber 5 is cleaned as described above by means of a liquid cleaning agent and / or compressed air.
- the filler channel 6 and the flow channel 9 are also cleaned in the LP method by the ejector 8, as previously described in the HD method. The movement of the ejector 8 in its cleaning position takes place after the mixing chamber 5 has been cleaned.
- the process of the present invention is characterized in that a gas stream containing solids passes over the filler channel 6 is introduced into the flow channel 9.
- the reactive mixture is introduced from the mixing chamber 5 in this stream of filler and transport gas. This results in a mixing of the at least one filler with the reactive mixture, whereby this (r) is wetted by the reactive mixture uniformly / are.
- a reactive mixture is understood according to the invention to mean a mixture of at least two, in particular liquid, reactive components which are mixed with one another in the region of a mixing chamber in the HD or LP process.
- a reactive mixture is not in the form of finely dispersed reaction droplets, but is a liquid viscous jet.
- one or more fillers in the filler channel 6 are transported with the aid of the at least one transport gas.
- a filler is understood as meaning those substances which impart desired properties, such as mechanical stability or resistance to UV radiation, to the reactive resin layers or moldings to be produced.
- Corresponding fillers are well described in the prior art.
- the fillers may be used singly or in combination.
- the fillers may have the same or different physical properties, such as density, and / or the same or different geometric configuration. If a filler-containing reactive mixture is described below, this includes reactive mixtures which contain one or more fillers.
- Fig. 1 shows schematically a device with which a method according to the invention can be carried out.
- Figs. 2a and 2b show an alternative embodiment of a corresponding device.
- Fig. Figure 1 shows an apparatus comprising a resin spray containing filler
- mixing chamber 5 and the Fül Istoff ka na I 6 include an angle which is not equal to 180 °, while the Fül Istoff channel 6 and the flow channel 9 form an angle of 180 °.
- the reactive mixture is formed from the corresponding reactive components.
- the reactive mixture is a reactive resin, for example a polyurethane or epoxy resin, in particular it is a polyurethane resin. If n subsequently polyurethane resins and polyurethane reactive mixtures are described, this also applies as a synonym for polyester and epoxy resin.
- At least one polyol is introduced via the at least two inlet openings 4 as a reactive component and at least one isocyanate is introduced into the mixing chamber 5 as a further reactive component.
- any of the polyols and isocyanates known from the prior art can be used, with which polyurethanes can be prepared.
- the reactive components of any reactive resin are introduced into the mixing chamber 5 in HD or ND. Here is a thorough mixing of the individual reactive components.
- the reactive mixture thus produced is introduced into the flow from the filler-gas mixture into the flow channel 9.
- filler-gas mixture is passed into the flow channel 9.
- fillings Iko ka na I 6 and flow channel 9 form an angle of 180 °.
- the filler (s) can / have, for example, a particle size of up to 2 mm, preferably up to 1 mm, particularly preferably up to 600 ⁇ m. They can be introduced into the filler channel 6 individually or in combination with the aid of the transport gas.
- the filler is preferably fibers, for example glass fibers or mineral fibers, in particular wollastonite, through which the resulting product has improved mechanical stability.
- a flame retardant material may be used, such as expanded graphite, melamine or aluminum hydroxide.
- the transport gas for the fuel (s) is inert gas, air, nitrogen and / or carbon dioxide.
- air is used as a transport gas.
- the transport gas flows with a volumetric flow rate of up to 700 nl / min, in particular with a volumetric flow rate of up to 500 nl / min, into the filling material ka na I 6 one.
- the degree of loading of the transport gas defined as the mass of filler in kilograms per kilogram of transport gas, can be up to 30 kg of filler per 1 kg of transport gas, preferably up to 15 kg of filler per 1 kg of transport gas, more preferably up to 12 kg of filler per 1 kg of transport gas ,
- the device which is suitable for carrying out the method according to the invention, furthermore has at least one gas channel 3, preferably a plurality of gas channels 3, which open into the flow channel 9 in at least one plane.
- a mixed gas is introduced into the flow channel 9 via this at least one gas channel 3.
- the filler-reactive mixture and the mineral gas meet. Due to their different flow directions, a further thorough mixing of the reactive mixture with the filler takes place.
- the at least one gas channel 3 may be arranged such that the flow direction of the gas stream of the mixed gas extends into the flow channel 9 at the inlet of the flow channel 9 at the entry into the flow channel 9.
- the mixed gas is therefore introduced into the flow channel 9 in such a way that the flow direction of the flow of the mixed gas, when entering the flow channel 9, is outside the center of the flow channel 9.
- a radial flow in one direction is impressed on the axial flow of the filler-containing reactive gas mixture.
- a plurality of gas channels 3 are present at different levels and these are arranged so that the flow direction of the gas stream of the mixed gas on entry into the flow channel 9 outside the center of the flow channel 9, this radial flow component preferably in a plane in a direction of rotation and in the following Plane in the opposite direction of rotation.
- Such a tangential arrangement of the at least one gas channel 3 leads to a turbulence of the filler-containing reactive mixture, whereby a homogeneous wetting of the filler (s) is ensured with the reactive mixture.
- the at least one gas channel 3 in a plane axially.
- the mixed gas can then be in the flow channel 9 via the at least two lying on the same plane Gas channels 3 are introduced, that the flow direction of the flow of the mixed gas at entry into the flow channel 9 in the center of the flow channel 9 extends.
- the inlet openings of the at least two lying on the same plane gas channels 3 are not opposed to each other in the flow channel 9.
- the mixed gas can then be introduced into the flow channel 9 via the at least two gas passages 3 lying on the same plane so that the flow direction of the flow of the mixed gas passes outside the center of the flow channel 9 when entering the flow channel 9.
- the at least one gas channel 3 and the flow channel 9 enclose an angle in the range of 0 to 180 °.
- the choice of the angle can be used to optimize the mixing between the filler and the reactive mixture.
- a mixed gas can be introduced into the flow channel 9 via the at least one gas channel 3.
- Inertgas, air, nitrogen and / or carbon dioxide are used as mixed gas, in particular air is used as mixed gas.
- the mixing chamber 5 and the filler channel 6 and the flow channel 9 after firing in the case of the HD process by the ejector 2 and the ejector 8 or in the LP method by the ejector 8 cleaned.
- the ejector 2 and the ejector 8 are in the firing position.
- the length of the ejector 2 according to the invention corresponds to the length of the mixing chamber. 5 up to the inlet in the flow channel 9, so that in the cleaning position of the ejector 2, the mixing chamber 5 completely cleans, but does not extend into the filler channel 6 and the flow channel 9.
- the abutting surface of the ejector 2 is concave. In particular, it is provided with such a curvature, which corresponds to the cylindrical shape of the Strömu ngskanals 9.
- the ejector 8 is also in the firing position. After firing, the ejector 8 is brought into the cleaning position in the H D process after the ejector 2, in the N D-process after cleaning the mixing chamber 5, wherein the ejector 8 is at least as long as the filler chamber 6 and the flow channel 9 up to the outlet opening. 7
- the ejector 8 comprises a sleeve 11 and a core 10 movable therealong.
- a method according to the invention is characterized in that a pusher 8 designed in two parts as core 10 and sleeve 11 is used, the sleeve 11 in the firing position at the level of the at least one inlet 1 has at least one opening through which the filler-gas mixture is introduced into the filler channel 6 and ends in the direction of flow in front of the junction of the mixing chamber 5 in the flow channel 9, and the core 10th in the firing position in the direction of the flow direction above the at least one opening ends.
- the mixing chamber 5, the filler material ka na I 6 and the flow channel 9 have a different diameter from one another, wherein preferably the inner diameter of the filler I ka nax Is 6 is smaller than the inner diameter of the flow channel 9 now introduced via the at least one inlet 1, a filler-gas mixture in the filler channel 6, so it comes at the lower end of the sleeve 11 to a turbulence of the filler-gas mixture due to the increase in the diameter.
- This turbulence leads to an improvement of the mixing of the filler (s) with the reactive mixture flowing out of the mixing chamber 5 and thus to a uniform wetting of the filler (s) with the reactive mixture.
- the resulting filler-containing reactive gas mixture leaves via an outlet opening 7, the flow channel 9.
- the flow channel 9 may also have at least one, in particular a plurality of gas channels 3, which are located on the same or different levels.
- the mixed gas flowing in via the at least one gas channel 3 further agglomerates the filler-containing reactive gas mixture.
- At the outlet opening 7 then exits a mixture in which the / the filler (s) is completely and evenly wetted with the reactive mixture / are.
- the outlet opening 7 of a corresponding device can taper in the flow direction.
- the sleeve 11 is completely inserted into the flow channel 9 at least to the outlet opening 7 for cleaning, so that at least one opening of the sleeve 11 is at the level of the at least one first gas channel 3 in the direction of flow. This allows the cleaning of the inside of the sleeve and the lower surface of the core 10 with a gas flow introduced from the at least one gas channel 3 into the sleeve 11.
- the core 10 is inserted into the sleeve 11 far enough that the sleeve 11 and the core 10 terminate flat in the flow channel.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2012012603A MX2012012603A (en) | 2010-04-30 | 2011-04-27 | Method for producing a filler-containing spray jet. |
KR1020127028261A KR20130067260A (en) | 2010-04-30 | 2011-04-27 | Method for producing a filler-containing spray jet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010018946.4 | 2010-04-30 | ||
DE102010018946A DE102010018946A1 (en) | 2010-04-30 | 2010-04-30 | Process for the preparation of a spray jet containing solids |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011134973A1 true WO2011134973A1 (en) | 2011-11-03 |
Family
ID=44170318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/056608 WO2011134973A1 (en) | 2010-04-30 | 2011-04-27 | Method for producing a filler-containing spray jet |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR20130067260A (en) |
DE (1) | DE102010018946A1 (en) |
MX (1) | MX2012012603A (en) |
WO (1) | WO2011134973A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012110407A1 (en) * | 2011-02-15 | 2012-08-23 | Bayer Materialscience Ag | Spraying device for a reactive resin, and method for producing a reactive resin |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3302891A (en) | 1961-07-19 | 1967-02-07 | Flintkote Co | Apparatus for spraying plastic materials |
DE2517864A1 (en) | 1974-04-29 | 1975-11-06 | Ransburg Corp | Spray gun for multi-component reinforced mixtures - which projects all constituents separately converging into mixed jet towards target |
DE2645937A1 (en) * | 1976-10-12 | 1978-04-13 | Elastogran Gmbh | HIGH PRESSURE INJECTION MIXING HEAD FOR MULTI-COMPONENT PLASTICS, IN PARTICULAR POLYURETHANE |
DE3909017C1 (en) | 1989-03-18 | 1990-04-12 | Metzeler Schaum Gmbh, 8940 Memmingen, De | |
DE4010752A1 (en) | 1990-04-03 | 1991-10-10 | Metzeler Schaum Gmbh | METHOD FOR PRODUCING A FLAME-RESISTANT, ELASTIC POLYURETHANE-SOFT FOAM |
DE4417596A1 (en) | 1994-05-19 | 1995-11-23 | Krauss Maffei Ag | Mixing reactive plastic components with fillers and process equipment |
EP0895815A1 (en) * | 1997-08-05 | 1999-02-10 | Afros S.P.A. | Apparatus and process for the production of polyurethane material |
EP0771259B1 (en) | 1995-05-08 | 2003-08-06 | Krauss-Maffei Kunststofftechnik GmbH | Device for manufacturing plastic parts with incorporated reinforcement fibres |
US20070128372A1 (en) * | 2005-12-07 | 2007-06-07 | Hennecke Gmbh | Process and device for producing coated moldings |
EP1458494B1 (en) | 2001-12-14 | 2008-07-09 | Stankiewicz GmbH | Method for the spray application of plastic layers |
DE102007016785A1 (en) | 2007-04-05 | 2008-10-09 | Hennecke Gmbh | Process for the production of molded parts with a layer of polyurethane |
WO2009052990A1 (en) | 2007-10-24 | 2009-04-30 | Bayer Materialscience Ag | Apparatus and method for producing reinforced composite polyurethane materials |
WO2009143979A1 (en) | 2008-05-28 | 2009-12-03 | Bayer Materialscience Ag | Production of a solids-containing pur spray jet |
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DE2823189A1 (en) * | 1978-05-27 | 1979-11-29 | Desma Werke Gmbh | MIXING HEAD, IN PARTICULAR FOR THE FOAMING OF POLYURETHANES |
-
2010
- 2010-04-30 DE DE102010018946A patent/DE102010018946A1/en not_active Ceased
-
2011
- 2011-04-27 KR KR1020127028261A patent/KR20130067260A/en not_active Withdrawn
- 2011-04-27 WO PCT/EP2011/056608 patent/WO2011134973A1/en active Application Filing
- 2011-04-27 MX MX2012012603A patent/MX2012012603A/en not_active Application Discontinuation
Patent Citations (13)
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US3302891A (en) | 1961-07-19 | 1967-02-07 | Flintkote Co | Apparatus for spraying plastic materials |
DE2517864A1 (en) | 1974-04-29 | 1975-11-06 | Ransburg Corp | Spray gun for multi-component reinforced mixtures - which projects all constituents separately converging into mixed jet towards target |
DE2645937A1 (en) * | 1976-10-12 | 1978-04-13 | Elastogran Gmbh | HIGH PRESSURE INJECTION MIXING HEAD FOR MULTI-COMPONENT PLASTICS, IN PARTICULAR POLYURETHANE |
DE3909017C1 (en) | 1989-03-18 | 1990-04-12 | Metzeler Schaum Gmbh, 8940 Memmingen, De | |
DE4010752A1 (en) | 1990-04-03 | 1991-10-10 | Metzeler Schaum Gmbh | METHOD FOR PRODUCING A FLAME-RESISTANT, ELASTIC POLYURETHANE-SOFT FOAM |
DE4417596A1 (en) | 1994-05-19 | 1995-11-23 | Krauss Maffei Ag | Mixing reactive plastic components with fillers and process equipment |
EP0771259B1 (en) | 1995-05-08 | 2003-08-06 | Krauss-Maffei Kunststofftechnik GmbH | Device for manufacturing plastic parts with incorporated reinforcement fibres |
EP0895815A1 (en) * | 1997-08-05 | 1999-02-10 | Afros S.P.A. | Apparatus and process for the production of polyurethane material |
EP1458494B1 (en) | 2001-12-14 | 2008-07-09 | Stankiewicz GmbH | Method for the spray application of plastic layers |
US20070128372A1 (en) * | 2005-12-07 | 2007-06-07 | Hennecke Gmbh | Process and device for producing coated moldings |
DE102007016785A1 (en) | 2007-04-05 | 2008-10-09 | Hennecke Gmbh | Process for the production of molded parts with a layer of polyurethane |
WO2009052990A1 (en) | 2007-10-24 | 2009-04-30 | Bayer Materialscience Ag | Apparatus and method for producing reinforced composite polyurethane materials |
WO2009143979A1 (en) | 2008-05-28 | 2009-12-03 | Bayer Materialscience Ag | Production of a solids-containing pur spray jet |
Also Published As
Publication number | Publication date |
---|---|
DE102010018946A1 (en) | 2011-11-03 |
MX2012012603A (en) | 2012-12-17 |
KR20130067260A (en) | 2013-06-21 |
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