CN211275079U - Polyurethane spraying system - Google Patents
Polyurethane spraying system Download PDFInfo
- Publication number
- CN211275079U CN211275079U CN201921581496.0U CN201921581496U CN211275079U CN 211275079 U CN211275079 U CN 211275079U CN 201921581496 U CN201921581496 U CN 201921581496U CN 211275079 U CN211275079 U CN 211275079U
- Authority
- CN
- China
- Prior art keywords
- branch
- pump
- raw material
- mixer
- feed
- 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.)
- Active
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 41
- 239000004814 polyurethane Substances 0.000 title claims abstract description 41
- 238000005507 spraying Methods 0.000 title claims description 21
- 239000002994 raw material Substances 0.000 claims abstract description 54
- 239000007921 spray Substances 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000003973 paint Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 description 9
- 239000003063 flame retardant Substances 0.000 description 8
- 239000006260 foam Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 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 6
- 239000000945 filler Substances 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 229920005862 polyol Polymers 0.000 description 5
- 150000003077 polyols Chemical class 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000012948 isocyanate Substances 0.000 description 4
- 150000002513 isocyanates Chemical class 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000004114 Ammonium polyphosphate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 1
- 229920001276 ammonium polyphosphate Polymers 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- VONWDASPFIQPDY-UHFFFAOYSA-N dimethyl methylphosphonate Chemical compound COP(C)(=O)OC VONWDASPFIQPDY-UHFFFAOYSA-N 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- YACKEPLHDIMKIO-UHFFFAOYSA-L methylphosphonate(2-) Chemical compound CP([O-])([O-])=O YACKEPLHDIMKIO-UHFFFAOYSA-L 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011493 spray foam Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Images
Landscapes
- Nozzles (AREA)
Abstract
The utility model provides a polyurethane paint finishing, this polyurethane paint finishing includes: a first branch comprising at least two raw material barrels each equipped with a feed pump and a mixer having an inlet side and an outlet side, the inlet side of the mixer being in communication with an output conduit of the feed pump with which each raw material barrel in the first branch is equipped, respectively; a second branch comprising at least one raw material barrel equipped with a feed pump; a metering device installed in the output pipes of the supply pump of each raw material barrel equipped with in the first branch and the supply pump of the second branch, respectively, controlling the feed amount of the raw material components, and a spray gun having a first feed inlet connected to the outlet side of the mixer of the first branch and a second feed inlet connected to the output pipe of the supply pump of the second branch.
Description
Technical Field
The utility model relates to a polyurethane spraying technical field especially relates to a polyurethane spraying system.
Background
The polyurethane rigid foam is a very good heat insulation material and is widely applied to various heat insulation fields. For the rigid polyurethane foam, the flame retardance is a performance sought by practitioners, and therefore, research and development personnel try to develop a rigid polyurethane spray foam system with higher flame retardance and more stable product performance from the viewpoint of chemical composition.
The conventional polyurethane spraying hard foam adopts a two-component spraying production construction mode, namely a polyol component (white material) and an isocyanate component (black material) are subjected to metering and mixing by high-pressure feeding equipment, and finally sprayed on the surface of a product to be insulated, and a foaming layer is formed on the surface of the product to achieve the effects of heat preservation and heat insulation.
The white material (polyol component) is a composition containing chemical substances such as polymer polyol, catalyst, flame retardant, foaming agent, and surfactant. After the composition is thoroughly stirred, the resulting mixture is stored and held in a bucket as a single component. Then mixing and spraying the mixture with another isocyanate component at a foaming site through a two-component spraying device for forming.
The existing polyurethane spraying system generally comprises a first raw material barrel and a second raw material barrel which are respectively used for storing a polyol component (white material) and an isocyanate component (black material), wherein the raw material in the first raw material barrel is conveyed by a first feeding pump, the raw material in the second raw material barrel is conveyed by a second feeding pump, the metered polyol component and the metered isocyanate component are conveyed to a spray gun according to a ratio, and the mixture is sprayed on the surface of a product to be insulated by the spray gun to foam on site.
In practice, in order to avoid that the various chemical components in the white material influence each other in one component, unnecessary chemical reactions occur, or the physical dispersion property is not good, the chemical properties and physical properties of the chemicals are considered when selecting the chemicals, which greatly influences the degree of freedom of product development. Such as some good flame retardants (e.g. dimethyl DMMP methylphosphonate,
OP 550，
OP 560, etc.) under alkaline conditions (most of catalysts for polyurethane foaming belong to strongly alkaline substances), so that the flame retardant property is lost, and the physical properties of the foam product are greatly influenced. Virtually all phosphorus-containing flame retardants decompose or degrade under alkaline conditions over an extended period of time. As another example, in some polyester polyols, a large amount of ester groups contained therein are also degraded under the condition of an alkaline catalyst, so that the performance of the final foam product is seriously reduced.
In addition, in recent years, in order to reduce the cost of the high flame-retardant spray hard bubble, many researches have been focused on the use of some low-cost and high-efficiency flame-retardant fillers (such as expanded graphite, ammonium polyphosphate and melamine) to achieve certain progress. However, these fillers do not disperse well in most polyurethane white systems, and tend to agglomerate and settle on long-term storage, and some tend to agglomerate and become difficult to redisperse.
These problems all significantly reduce the freedom of development of high quality two-component spray polyurethane products and may result in reduced performance of the final foam product.
Therefore, a polyurethane spraying system is needed to solve the problems of limited research and development of polyurethane products, difficult storage of fillers, unstable product performance and the like in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a polyurethane paint finishing to overcome prior art's problem.
Therefore, the utility model provides a polyurethane spraying system, it includes:
a first branch comprising at least two raw material barrels each equipped with a feed pump and a mixer having an inlet side and an outlet side, the inlet side of the mixer being in communication with an output conduit of the feed pump with which each raw material barrel in the first branch is equipped, respectively;
a second branch comprising at least one raw material barrel equipped with a feed pump;
a metering device installed in the output pipes of the supply pump provided for each raw material bucket in the first branch and the supply pump of the second branch, respectively, controlling the feed amount of the raw material components, and
the spray gun is provided with a first feeding hole and a second feeding hole, the first feeding hole is connected to the outlet side of the mixer of the first branch, and the second feeding hole is connected to the output pipeline of the feeding pump of the second branch.
The utility model discloses a polyurethane paint finishing helps producing the hard bubble system of high-quality polyurethane with economic cost, and this paint finishing is applicable to the spraying of 3 components or more components. The chemical substances which are easy to degrade or can influence each other or have poor physical dispersion performance are separated, the chemical substances which are easy to degrade or can influence each other or have poor physical dispersion performance are premixed on line through a mixer, the mixed components are conveyed to a spray gun, and the components are mixed and sprayed on the spraying site on line, so that the freedom degree of formula development is greatly expanded, the flexibility of field spraying is improved, the problems of caking, degradation and the like of fillers are solved, and a foundation is provided for developing a high-quality and economic polyurethane spraying hard foam system.
Drawings
The advantages, features of the present invention will now be described in detail with reference to the accompanying drawings, in which the components are not necessarily drawn to scale, and wherein:
FIG. 1 illustrates a schematic view of one embodiment of a polyurethane spray system of the present invention;
fig. 2 illustrates a schematic structural diagram of the mixer of the present invention.
Wherein, 1, a first branch; 1-1, A1 raw material barrel; 1-2, A2 raw material barrel; 1-3, A1 supply pump; 1-4, A2 supply pump; 2. a second branch circuit; 2-1, a raw material barrel B; 2-2, B feeding pump; 3. a metering device; 4. a mixer; 4-1, mandrel; 4-2, spiral leaves; 5. a heating device; 6. a spray gun.
It is to be understood that the drawings are drawn for purposes of illustration only and are not to be construed as limiting the invention.
Detailed Description
The following description will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
In the present application, the term "connection" of the pipes is to be understood as including both direct and indirect connections of the pipes, as long as the circulation of the material flows in the pipes is ensured.
The utility model discloses a polyurethane paint finishing includes:
a first branch comprising at least two raw material barrels each equipped with a feed pump and a mixer having an inlet side and an outlet side, the inlet side of the mixer being in communication with an output conduit of the feed pump with which each raw material barrel in the first branch is equipped, respectively;
a second branch comprising at least one raw material barrel equipped with a feed pump;
a metering device installed in the output pipes of the supply pump provided for each raw material bucket in the first branch and the supply pump of the second branch, respectively, controlling the feed amount of the raw material components, and
the spray gun is provided with a first feeding hole and a second feeding hole, the first feeding hole is connected to the outlet side of the mixer of the first branch, and the second feeding hole is connected to the output pipeline of the feeding pump of the second branch.
According to a preferred embodiment of the present invention, the second branch comprises at least two material barrels and a mixer, each material barrel of the second branch is equipped with a material feeding pump, and the inlet side of the mixer of the second branch is communicated with the output pipeline of the material feeding pump of the second branch.
According to a preferred embodiment of the present invention, the polyurethane spraying system further comprises a heating device, wherein the heating device is located upstream of the first feeding port and the second feeding port of the spray gun.
According to a preferred embodiment of the present invention, the metering device is a proportioner, which is connected to the feed pump of the first branch and the feed pump of the second branch, respectively, for controlling the feed amount of the raw material component.
According to a preferred embodiment of the invention, the metering device is a flow control valve, which is mounted on the output conduit of the feed pump.
According to a preferred embodiment of the present invention, the mixer of the first branch and the mixer of the second branch have the same structure.
According to a preferred embodiment of the present invention, the mixer comprises a mandrel and a spiral blade, wherein the mandrel and the spiral blade are of an integral structure.
According to a preferred embodiment of the invention, the feed pump of the first branch and/or the feed pump of the second branch is a plunger pump.
According to a preferred embodiment of the present invention, the plunger pump is a pump with a pressure ratio of 1: 1-3: a proportional transfer pump in the range of 1.
According to a preferred embodiment of the present invention, the plunger pump is a Graco plunger delivery pump, a Graco T1 plunger delivery pump or a Graco T2 plunger delivery pump.
Fig. 1 illustrates a schematic diagram of one embodiment of a polyurethane spray system of the present invention. Fig. 2 schematically illustrates a cross-sectional structure of the mixer of the present invention. In the illustrated embodiment, the polyurethane spray coating system of the present invention is described in detail by way of example with a three component spray coating system.
As shown in fig. 1, the polyurethane spray coating system includes a first branch 1, a second branch 2, a metering device 3, and a spray gun 6. Wherein the first branch may be designated to convey white material and the second branch may be designated to convey black material, or vice versa.
In the illustrated embodiment, the first branch 1 is designated for conveying white stock and comprises two stock barrels, namely, a1 stock barrels 1-1 and a2 stock barrels 1-2, for holding two stock components, a1 and a2, respectively, wherein at least one of the a1 component and the a2 component can be an easily decomposable flame retardant or an easily cakable flame retardant filler, or the like. The a1 raw material barrels 1-1 and a2 raw material barrels 1-2 are equipped with corresponding supply pumps, i.e., a1 supply pump 1-3 and a2 supply pump 1-4, respectively, and a1 supply pump 1-3 and a2 supply pump 1-4, respectively, are of a barrel insertion type structure, the size of which matches the opening size/height, etc., of the a1 raw material barrel and a2 raw material barrel, respectively, and are installed in the a1 raw material barrel and a2 raw material barrel in an insertion manner for conveying the a1 component and the a2 component, respectively. The A1 component and the A2 component are fed into the mixer 4 by the metering device 3 according to a predetermined ratio, for example, a ratio of 1:1, via a feed line. The inlet side of the mixer 4 communicates with the outlet lines of the A1 feed pumps 1-3 and the A2 feed pumps 1-4, respectively, and the A1 component and the A2 component fed thereto are premixed in the mixer 4. In this way, the problems of easy decomposition, easy caking and the like of raw material components stored for a long time can be solved. Preferably, the mixer, which may be an elongated cylinder, statically mixes or dynamically mixes the raw ingredients delivered thereto, includes a mandrel 4-1 and a helical blade 4-2 (see fig. 2) within the mixer 4, which may be a unitary structure. The raw material components in the mixer are mixed by the rotation of the spiral blade 4-2. Alternatively, the first branch 1 may also include three raw material barrels for accommodating three raw material components and premixing the three raw material components by a mixer. In this way, the degree of freedom in designing the polyurethane product can be increased.
In the embodiment shown, the second branch 2 is designated for conveying black material and comprises a raw material tank, i.e. a B raw material tank 2-1, for containing a raw material component B, which is equipped with a B feed pump 2-2 for conveying the B component. Similar to the first branch, the B feed pump is of a cartridge type structure, and the size thereof matches the opening size/height, etc. of the B raw material cartridge, and is installed in the B raw material cartridge in a plug-in manner. The feed amount of the B component is controlled by the metering device 3 so that the A1 component, the A2 component and the B component are delivered in a predetermined ratio, for example, 1:1: 1. Alternatively, the second branch 2 may also include two material barrels for the B1 component and the B2 component, respectively, and a mixer, respectively, each material barrel of the second branch being provided with a supply pump for delivering the B1 component and the B2 component, respectively, and an inlet side of the mixer of the second branch being communicated with an output pipe of the supply pump, respectively, so that the B1 component and the B2 component are mixed therein at a predetermined ratio for premixing, similarly to the first branch. Here, the mixer of the second branch may have the same structure as the mixer of the first branch.
Preferably, the feed pump may be selected based on the viscosity of the various feed components, the feed pump inlet to outlet pressure ratio, and the like. In the embodiment shown, the feed pumps of the first branch and of the second branch are plunger pumps, alternatively any type of pump suitable for polyurethane production can be chosen as the feed pumps. Preferably, the plunger pump is operated at a pressure ratio of 1: 1-3: a proportional transfer pump in the range of 1. Wherein the pressure ratio is the ratio between the maximum fluid working pressure and the maximum air inlet pressure of the pump. As a specific example, for a fluid with a lower viscosity, a Graco plunger delivery pump with a pressure ratio of 1:1 may be selected, and for a fluid with a high viscosity, a Graco T1 plunger delivery pump with a pressure ratio of 2:1 or a Graco T2 plunger delivery pump with a pressure ratio of 2.25:1 may be selected. In this way, an optimized transport of the starting components can be achieved.
Alternatively, the metering device 3 may be a flow control valve installed on an output line of each feed pump, and the feed amount of the raw material component is controlled by adjusting the flow control valve.
In the embodiment shown, the metering device 3 is a proportioner, in which a control module (not shown) is integrated, which can be connected to the output line of each feed pump, respectively, for controlling the feed amount of the raw material components.
It will be appreciated that the metering device 3 may be an integrated unit for controlling the amount of each component fed, or may be a plurality of separate control units for controlling the amount of each component fed individually. In addition, the compounding ratio of each raw material component may be set as desired, and is not limited to the examples listed herein.
Optionally, the polyurethane spraying system of the present invention further comprises a heating device 5, which may be a heating pipe. In this embodiment, the heating pipe is located between the metering device 3 (proportioner) and the lance 6, wrapping outside the plurality of delivery pipes. Alternatively, the delivery conduit for each feed component may be provided with a heating device separately to selectively heat the feed components as required.
According to the utility model discloses an among the polyurethane paint finishing, spray gun 6 has first feed inlet and second feed inlet, first feed inlet is connected to the outlet side of the blender 4 of first branch road 1 for leading-in white material, the second feed inlet is connected to the output pipeline of the feed pump 2-2 of second branch road 2 for leading-in black material. The spray gun also comprises a mixing chamber and a nozzle, wherein two paths of raw materials (namely white materials and black materials) are sprayed out through the nozzle after being collided and mixed under high pressure in the mixing chamber, and are sprayed on the surface of a product to be insulated, and a foaming layer is formed on the surface of the product to achieve the effects of heat insulation and heat insulation.
The working flow of the polyurethane spray system of the present invention is described below according to the illustrated embodiment. A1 raw material barrel and A2 raw material barrel are respectively stored with A1 component and A2 component, A1 component and A2 component enter a mixer through a feed pump and an output pipeline of a feed pump according to a ratio and are premixed in the mixer, B raw material barrel is stored with B component, B component and premixed A1 component and A2 component through the feed pump and the output pipeline of the feed pump according to a ratio enter a mixing chamber of a spray gun through a second feed inlet and a first feed inlet of the spray gun respectively after being heated (optional), high-pressure collision mixing is completed, and finally the mixture is sprayed out from a nozzle of the spray gun, and a foaming layer is formed on the surface of a product to be insulated.
While various preferred embodiments have been shown and described above, it will be apparent to those skilled in the art that modifications and changes may be made without departing from the scope of the invention as defined in the appended claims.
Claims (10)
1. A polyurethane spray system, comprising:
a first branch comprising at least two raw material barrels each equipped with a feed pump and a mixer having an inlet side and an outlet side, the inlet side of the mixer being in communication with an output conduit of the feed pump with which each raw material barrel in the first branch is equipped, respectively;
a second branch comprising at least one raw material barrel equipped with a feed pump;
a metering device installed in the output pipes of the supply pump provided for each raw material bucket in the first branch and the supply pump of the second branch, respectively, controlling the feed amount of the raw material components, and
the spray gun is provided with a first feeding hole and a second feeding hole, the first feeding hole is connected to the outlet side of the mixer of the first branch, and the second feeding hole is connected to the output pipeline of the feeding pump of the second branch.
2. The polyurethane spraying system according to claim 1, wherein the second branch comprises at least two material barrels and a mixer, each material barrel of the second branch is provided with a supply pump, and an inlet side of the mixer of the second branch is communicated with an output pipeline of the supply pump of the second branch.
3. The polyurethane spray system of claim 1 or claim 2, further comprising a heating device located upstream of the first and second feed ports of the spray gun.
4. The polyurethane spray system according to claim 1 or 2, wherein the metering device is a proportioner connected to the feed pump of the first branch and the feed pump of the second branch, respectively, for controlling the feed amount of the raw material components.
5. Polyurethane spray system according to claim 1 or 2, characterized in that the metering device is a flow control valve which is mounted on the output line of a feed pump.
6. The polyurethane spray system of claim 2, wherein the mixer of the second branch and the mixer of the first branch have the same structure.
7. The polyurethane spray system of claim 6, wherein the mixer includes a mandrel and a spiral blade, the mandrel and the spiral blade being a unitary structure.
8. The polyurethane spray system of claim 1 or 2, wherein the feed pump of the first branch and/or the feed pump of the second branch are plunger pumps.
9. The polyurethane spray system of claim 8, wherein the plunger pump is a pump having a pressure ratio of 1: 1-3: a proportional transfer pump in the range of 1.
10. The polyurethane spray system of claim 9, wherein the plunger pump is a Graco plunger delivery pump, a Graco T1 plunger delivery pump, or a Graco T2 plunger delivery pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921581496.0U CN211275079U (en) | 2019-09-20 | 2019-09-20 | Polyurethane spraying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921581496.0U CN211275079U (en) | 2019-09-20 | 2019-09-20 | Polyurethane spraying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211275079U true CN211275079U (en) | 2020-08-18 |
Family
ID=72033166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921581496.0U Active CN211275079U (en) | 2019-09-20 | 2019-09-20 | Polyurethane spraying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211275079U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715250A (en) * | 2021-08-05 | 2021-11-30 | 万华建筑科技有限公司 | Continuous processing equipment and processing technology for A2-grade hard foam polyurethane insulation board |
| CN114849936A (en) * | 2022-06-01 | 2022-08-05 | 内蒙古伟之杰节能装备有限公司 | Efficient spraying system and method for polyurethane thermal insulation pipe |
| CN115283162A (en) * | 2021-09-26 | 2022-11-04 | 上海祥峪科技有限公司 | Polyurethane spraying device for assembly type building |
-
2019
- 2019-09-20 CN CN201921581496.0U patent/CN211275079U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113715250A (en) * | 2021-08-05 | 2021-11-30 | 万华建筑科技有限公司 | Continuous processing equipment and processing technology for A2-grade hard foam polyurethane insulation board |
| CN115283162A (en) * | 2021-09-26 | 2022-11-04 | 上海祥峪科技有限公司 | Polyurethane spraying device for assembly type building |
| CN114849936A (en) * | 2022-06-01 | 2022-08-05 | 内蒙古伟之杰节能装备有限公司 | Efficient spraying system and method for polyurethane thermal insulation pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211275079U (en) | Polyurethane spraying system | |
| EP0787034B2 (en) | Method and apparatus for producing closed cell foam | |
| US5979787A (en) | Apparatus and method for convergently applying polymer foam to substrate | |
| EP1121191B1 (en) | Valve configuration for dosing colorants into a manifold | |
| US11187050B2 (en) | Automated drilling-fluid additive system and method | |
| CN103857501A (en) | Solvent-free plural component spraying system and method | |
| CN109666468B (en) | Skid-mounted type frozen glue dispersion process units and frozen glue dispersion and preparation method and application | |
| US4038037A (en) | Apparatus for the manufacture of homogeneous, fine-pored synthetic resin foams | |
| KR101612296B1 (en) | Apparatus for Producing Excellent Heat Insulating Polyurethane Foam Board | |
| CN111760481A (en) | Liquid medicine mixing arrangement and liquid medicine mix moisturizing system | |
| US1649062A (en) | Apparatus for mixing and proportioning materials | |
| CA2280863A1 (en) | Method and device for producing polyurethanes containing filling materials | |
| WO2022124301A1 (en) | External liquid supply device | |
| CN211678312U (en) | Coating supply mechanism of plant fiber tableware spraying equipment | |
| US6405759B1 (en) | Apparatus for the continuous preparation of glass fiber sizing compositions | |
| US20130206864A1 (en) | Plural component sprayer preheating system | |
| JP6861882B1 (en) | External liquid supply device | |
| CN212241839U (en) | Solid flame retardant adding device | |
| CN111729599B (en) | Process for adding expanded graphite into core material on color steel insulation board production line | |
| KR101750714B1 (en) | Method of Producing Excellent Heat Insulating Polyurethane Foam Board | |
| SU1211071A1 (en) | Device for sputtering foam polyurethane | |
| JP2024004007A (en) | Spraying system of two-liquid curable resin, and spraying method of two-liquid curable resin | |
| CN116284515A (en) | Dilution method of antistatic agent for polymerization of polyethylene device | |
| CN103962024A (en) | Turnable atomization apparatus | |
| KR20190016477A (en) | Forming machine for penolic resin foam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |