CN116163181A - Nanometer super-hydrophobic material spraying device and application method - Google Patents
Nanometer super-hydrophobic material spraying device and application method Download PDFInfo
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- CN116163181A CN116163181A CN202310165391.1A CN202310165391A CN116163181A CN 116163181 A CN116163181 A CN 116163181A CN 202310165391 A CN202310165391 A CN 202310165391A CN 116163181 A CN116163181 A CN 116163181A
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- 239000000463 material Substances 0.000 title claims abstract description 74
- 238000005507 spraying Methods 0.000 title claims abstract description 58
- 230000003075 superhydrophobic effect Effects 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 117
- 238000000576 coating method Methods 0.000 claims abstract description 117
- 238000010008 shearing Methods 0.000 claims abstract description 96
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 49
- 239000002086 nanomaterial Substances 0.000 claims abstract description 48
- 238000003860 storage Methods 0.000 claims abstract description 42
- 239000011550 stock solution Substances 0.000 claims abstract description 40
- 238000007605 air drying Methods 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 15
- 238000005192 partition Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 41
- 238000010438 heat treatment Methods 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 16
- 238000000889 atomisation Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 239000010419 fine particle Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
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- 239000003973 paint Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000010426 asphalt Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
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- 150000003839 salts Chemical class 0.000 description 2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000870659 Crassula perfoliata var. minor Species 0.000 description 1
- 206010060904 Freezing phenomenon Diseases 0.000 description 1
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- VJOOEHFQQLYDJI-UHFFFAOYSA-N methoxy(dimethyl)silane Chemical compound CO[SiH](C)C VJOOEHFQQLYDJI-UHFFFAOYSA-N 0.000 description 1
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- 238000012876 topography Methods 0.000 description 1
- TUQLLQQWSNWKCF-UHFFFAOYSA-N trimethoxymethylsilane Chemical compound COC([SiH3])(OC)OC TUQLLQQWSNWKCF-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
- B05B15/25—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/245—Methods or arrangements for preventing slipperiness or protecting against influences of the weather for preventing ice formation or for loosening ice, e.g. special additives to the paving material, resilient coatings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/007—Mobile apparatus specially adapted for preparing or applying liquid or semi-liquid thawing material or spreading granular material on wintry roads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Nozzles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a nanometer super-hydrophobic material spraying device and a using method, wherein the spraying device comprises a bearing moving system, and a cleaning system, a connecting layer coating system, a nanometer-super-hydrophobic coating system and an air drying system are sequentially arranged along the advancing direction; the nanometer-superhydrophobic coating system comprises a shearing box, a horizontal partition plate is in sealing connection with the inner wall of the shearing box, a shearing support shaft with a hollow interior is arranged in a cavity above the partition plate, a plurality of openings are formed in the whole body of the shearing support shaft, a second telescopic pipe is arranged at the top of the shearing box, and a shearing stirrer is arranged at the bottom of a telescopic head; an electric valve is arranged between the lower port of the shearing support shaft and the storage box; the air drying system is used for drying the surface of the nano-super-hydrophobic coating after the spraying is finished. The invention improves the mixing uniformity and the mixing effect of the nano material and the hydrophobic stock solution, reduces the sedimentation and accumulation problems of the nano material in the mixed colloid, further ensures the spraying quality and improves the hydrophobic performance.
Description
Technical Field
The invention belongs to the technical field of road engineering materials, and relates to a nanometer super-hydrophobic material spraying device and a using method thereof.
Background
Along with the economic high-speed development of China, the pavement and maintenance engineering construction of the expressway are increasingly increased, the traffic industry and the transportation industry are remarkably developed, and the expressway has the advantage of high speed and rapidness and is abnormal in development. However, because of the vast territories of China and the large differences of the air temperature environments, the topography and the like of different provinces and cities, the influence on the road traffic safety is also great. In northern areas of China, ice formation on roads such as highways often occurs in winter. The reason why ice is generated on the road is mainly that asphalt pavement or cement pavement serving as hydrophilic materials cannot always timely discharge water out of the pavement in the presence of precipitation and water in the air, so that the water is left on the pavement for a long time. When the temperature is too low, the water reaches the freezing point, and the freezing phenomenon occurs on the road surface. The road ice layer can greatly reduce the friction force between the wheels of the automobile and the road surface, so that accidents such as rear-end collision, turning over, sideslip and the like seriously endangering the running safety of the road occur on the road. Not only seriously reduces the use efficiency of the infrastructure, but also causes serious threat to the safety of roads and lives and property of people. However, the conventional manual salt spraying deicing has obvious effect, but does not play a role in preventive maintenance, and is rather wasteful of manpower. Meanwhile, chloride ions can permeate into the pavement structure in the salt spraying process, so that the internal structure of pavement concrete is seriously influenced, the binding force of the concrete is destroyed, the service life of the pavement is shortened, and the maintenance cost of the pavement is increased.
Therefore, the preparation method of the super-hydrophobic material is common at home and abroad by preparing the super-hydrophobic stock solution by specific organic raw materials (such as trimethoxymethylsilane, methoxydimethylsilane and the like) in a specific proportion and adding the materials such as nano silicon dioxide and the like after organic treatment to further improve the hydrophobicity of the mixture. The concrete construction is as follows: firstly, coating a connecting layer (generally epoxy compound organic matters) on a road surface to serve as a binder to improve the cohesiveness of the super-hydrophobic coating and the road surface; then the nano material after organic treatment is mixed with the super-hydrophobic stock solution to be used as a coating of the road surface, so that the contact angle of water drops and a super-hydrophobic plane can be greatly improved by more than 150 degrees, the hydrophobic performance of the road surface is greatly improved, and the threat of icing on the road surface structure and the driving safety is reduced.
However, the density of the nano-silica material is about 2.319g/cm 3 ~2.653g/cm 3 While the density of the super-hydrophobic stock solution is 1.1g/cm 3 ~1.5g/cm 3 And less than about 40% of the nanosilica. Although nano silicon dioxide can form gel substances in stock solution, sedimentation is always generated along with the increase of the construction time of a coating material in the actual use process, so that the coating is unevenly smeared in the actual pavement construction, and a large amount of the nano silicon dioxide is more likely to block a pipeline in the use process. In the use process, the coating material is not suitable for being placed, and is required to be prepared again continuously after being used, so that continuous construction of material preparation and spraying is not realized. Meanwhile, subjective factors exist in manual construction, so that the construction quality of certain parts of the pavement is difficult to meet the requirement in spraying, the degree of automation is low, and the construction efficiency is low; there is a need for a nano super-hydrophobic material spraying device.
Disclosure of Invention
In order to solve the problems, the invention provides the nano super-hydrophobic material spraying device, which improves the mixing uniformity and the mixing effect of the nano material and the hydrophobic stock solution, reduces the sedimentation and accumulation problems of the nano material in the mixed colloid, further ensures the spraying quality, improves the hydrophobic performance and solves the problems in the prior art.
The invention further aims to provide a using method of the nanometer super-hydrophobic material spraying device.
The technical scheme adopted by the invention is that the nanometer super-hydrophobic material spraying device comprises a bearing moving system, wherein a cleaning system, a connecting layer coating system, a nanometer-super-hydrophobic coating system and an air drying system are sequentially arranged along the advancing direction;
the cleaning system comprises a negative pressure dust collection device;
the connecting layer coating system is used for uniformly coating the connecting layer coating on the road surface;
the nanometer-superhydrophobic coating system comprises a shearing box, wherein a nanometer material feed inlet and a hydrophobic raw liquid feed inlet which can be opened and sealed are arranged at the top of the shearing box, a horizontal partition plate is connected with the inner wall of the shearing box in a sealing manner, the shearing box is divided into an upper chamber and a lower chamber, and the lower chamber is a stock box; a hollow shearing support shaft is arranged in the cavity above the partition plate, the outer wall of the shearing support shaft is respectively and hermetically connected with the partition plate and the top of the shearing box, a plurality of openings are formed in the whole body of the shearing support shaft, a second telescopic pipe is arranged at the top of the shearing box, a telescopic head of the second telescopic pipe is in sliding and sealing connection with the inner wall of the shearing support shaft, and a shearing stirrer is arranged at the bottom of the telescopic head; an electric valve is arranged between the lower port of the shearing support shaft and the storage box; the bottom of the storage box is provided with a gas transmission device, and a plurality of second atomizing spray heads are arranged at the bottom discharge hole of the storage box;
and the air drying system is used for drying the surface of the nano-super-hydrophobic coating after the spraying is finished.
The application method of the nanometer super-hydrophobic material spraying device comprises the following steps:
s1, starting a second telescopic pipe, enabling a telescopic head of the second telescopic pipe to move to the bottom of a shearing support shaft, and enabling an electric valve between a lower port of the shearing support shaft and a storage box to be in a closed state; adding a bonding layer coating material to the bonding layer coating system according to the calculated proportion, adding a nano material and a super-hydrophobic stock solution to the nano-super-hydrophobic coating system, and sealing a nano material feed inlet and a hydrophobic stock solution feed inlet;
s2, starting a second telescopic pipe and a shearing stirrer to enable a telescopic head of the second telescopic pipe to move upwards rapidly, and extruding the nano material and the hydrophobic stock solution from the opening into a shearing support shaft under the action of negative pressure; the telescopic head of the second telescopic pipe reciprocates up and down, the shearing stirrer rotates to shear, and the combined action enables the nano material and the hydrophobic stock solution to be fully and uniformly mixed; opening an electric valve, and enabling the nano-super-hydrophobic coating which is uniformly stirred to enter a storage box; then closing the electric valve and simultaneously opening a gas transmission device arranged at the bottom of the storage box;
s3, determining the running speed of the bearing moving system and the discharging speed of the connecting layer coating system and the nano-super-hydrophobic coating system according to the planned spraying thickness;
s4, when the bearing moving system starts to run, starting negative pressure dust collection equipment to remove broken stones, dust and other impurities remained in gaps on the pavement; the connecting layer coating system uniformly coats the connecting layer coating on the road surface, and the nano-super-hydrophobic coating in the storage box uniformly covers the upper part of the connecting layer through a second atomization nozzle; and (5) after spraying, drying the coating by an air drying system.
The beneficial effects of the invention are as follows:
(1) The mechanical, integrated and continuous construction of the super-hydrophobic coating is realized by integrally designing the bearing moving system, the cleaning system, the connecting layer coating system, the nano-super-hydrophobic coating system and the air drying system, road spraying cleaning, connecting layer spraying and nano-super-hydrophobic soil layer construction are integrated, manual repeated operation construction is not needed, meanwhile, the influence of factors such as manual operation on construction quality is greatly reduced, popularization in engineering practice is facilitated, and the method has good engineering application prospect. Meanwhile, the thickness of the coating on the road surface can be ensured by controlling the discharging speed of the hydrophobic coating, so that the hydrophobic effect of the road surface is ensured, the materials are not wasted, and the efficient utilization of the materials is realized.
(2) According to the nano-superhydrophobic coating system provided by the embodiment of the invention, the mixture is extruded and sucked into the shearing support shaft through the opening by controlling the telescopic head of the second telescopic pipe to move up and down, the shearing force of the mixture is increased under the condition of pressure change in the up and down movement process of the shearing stirrer, and the shearing efficiency and the shearing effect are improved through the double shearing action of the shearing stirrer and the opening sharp teeth. Meanwhile, under the combined action of the shearing stirrer and the open holes, the generation rate of bubbles is reduced, bubbles generated by high-speed shearing of the super-hydrophobic stock solution are destroyed, the mixing uniformity and the mixing effect of the nano material and the hydrophobic stock solution are improved, and further the spraying quality is ensured.
(3) According to the nano-superhydrophobic coating system provided by the embodiment of the invention, the hot air heating is carried out on the nano material-superhydrophobic stock solution through the air conveying device, the nano material is driven to move by the air flow while the thermal movement of the nano material is intensified through temperature rising, so that sedimentation of the nano material in the superhydrophobic stock solution can be effectively eliminated, and uneven and pipeline blockage of the coating during spraying can be avoided. Meanwhile, the paint can be reacted and mixed at a proper higher temperature, the reaction rate of the nano material and the hydrophobic stock solution is improved, the thermal movement of the paint is enhanced, and the nano-superhydrophobic material is ensured to fully react to achieve the corresponding hydrophobic performance. The air pressure at the top of the storage box is increased by air supply, so that the air pressure outside the air bubbles in the storage box is larger than the air pressure inside the storage box to generate cracking, and the effect of secondarily eliminating the air bubbles is achieved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an embodiment of the present invention.
FIG. 2 is a schematic view of a structure of a tie layer tap in accordance with an embodiment of the invention.
FIG. 3 is a schematic structural view of a discharge pipe with a superhydrophobic coating according to an embodiment of the invention.
Fig. 4 is a schematic structural view of the atomizing spray head in the embodiment of the present invention.
FIG. 5 is a schematic view of a shear support shaft in accordance with an embodiment of the present invention.
Fig. 6 is a schematic view of the structure of the openings in the embodiment of the present invention.
Fig. 7 is the effect of the prior art nanomaterial and hydrophobic stock solution after shearing.
Fig. 8 shows an asphalt pavement that was not paved using the apparatus.
Fig. 9 is an asphalt pavement on which a hydrophobic material was laid using the spraying apparatus of the embodiment of the present invention.
In the drawings, 1. Carrier plate, 2. Wheel, 3. Suction tube, 4. Suction box, 5. Buffer layer, 6. Static generator, 7. Screen, 8. First atomizer, 9. Atomizing tube, 10. Water pump, 11. Water pipe, 12. Rotary disk, 13. Negative pressure fan, 14. Water storage device, 15. Tie layer feed inlet, 16. Atomizing inlet, 17. First telescopic tube, 18. Feed valve, 19. Tie layer coating box, 20. Pressure plate, 21. Outer wall, 22. First flow rate detector, 23. First speed control valve, 24. Tie layer discharge tube, 25. First discharge port, 26. Coating brush, 27. Electric valve, 28. First electromagnetic valve, 29. Nanomaterial feed inlet, 30. Hydrophobic stock feed inlet, 31. Second electromagnetic valve, the second telescoping tube, 33, nanoscale screen, 34, shear box, 35, shear support shaft, 36, shear agitator, 37, orifice, 38, stock box, 39, first temperature sensor, 40, second pressure sensor, 41, tines, 42, first gas pump set, 43, first gas pipe, 44, first pressure sensor, 45, air control valve, 46, first heating resistance wire, 47, gas hole, 48, superhydrophobic paint discharge tube, 49, second flow rate detector, 50, second speed control valve, 51, second discharge hole, 52, second atomizer, 53, second gas pump set, 54, second heating resistance wire, 55, second gas pipe, 56, second temperature sensor, 57, drying outlet, 63, separator.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the case of example 1,
a nanometer super-hydrophobic material spraying device is shown in fig. 1, and comprises a bearing moving system, a cleaning system, a connecting layer coating system, a nanometer-super-hydrophobic coating system and an air drying system.
The bearing and moving system comprises a bearing plate 1, wheels 2 and a power propulsion device, wherein the power propulsion device is arranged on the bearing plate 1, and the wheels 2 are arranged at the bottom of the bearing plate 1; the whole bearing plate 1 is driven to move by a power propulsion device. The radius of the wheel 2, the size of the bearing plate 1, materials and the like can be selected according to the mass required to be borne on the upper part during practical application, so that the running radius of the wheel 2 is ensured to be coordinated with the dust collection device.
The cleaning system comprises a negative pressure dust collection device for removing broken stone, dust and other impurities remained in gaps on the pavement. The negative pressure dust collection equipment comprises a dust collection box 4, wherein a negative pressure fan 13 is arranged at one end of the dust collection box 4, the negative pressure fan 13 is connected with a power supply, so that negative pressure is generated by the dust collection box 4, a suction pipe 3 is arranged at the other end of the dust collection box 4, the port of the suction pipe 3 is close to a road surface, and broken stone, dust and other impurities remained in a gap on the road surface are sucked into the dust collection box 4. The inner wall of the dust box 4 is provided with a buffer layer 5, and the buffer layer 5 is made of wear-resistant and harder materials (such as ceramic patches and the like), so that excessive impact of impurities with larger particles on the dust box 4 is avoided. The screen 7 is installed in the suction box 4 and at the suction inlet of the negative pressure fan 13, the electrostatic generator 6 is installed on the box wall of the suction box 4, so that dust particles with smaller particle size (smaller than 2.5 microns) and capable of passing through the screen 7 (with the aperture of 2.5 microns) are adsorbed on the inner wall of the suction box 4, tiny dust coming out of the negative pressure fan 13 is reduced, secondary environmental pollution is avoided, and the adsorbed dust is integrally cleaned after spraying is finished. The first atomizing nozzle 8 is arranged in the dust collection box 4, the first atomizing nozzle 8 is connected with the water pump 10 through the atomizing pipe 9, the water pump 10 is connected with the water storage device 14 through the water pipe 11, fine particles are left in the dust collection box 4, and pollution is avoided. The road surface is effectively cleaned before the hydrophobic material is sprayed, so that the adhesiveness of the connecting layer and the road surface can be effectively improved, and the durability of the connecting layer and the hydrophobic material can be improved.
The tie layer coating system comprises a tie layer coating box 19, a horizontal pressure plate 20 is in sliding connection with the inner wall of the tie layer coating box 19, and the top of the pressure plate 20 is fixedly connected with the telescopic head of the first telescopic pipe 17; the first telescopic pipe 17 is arranged at the top of the joint layer coating box 19, the side wall of the joint layer coating box 19 is provided with a joint layer feed inlet 15, the joint layer feed inlet 15 is communicated with a cavity below the pressure plate 20, and a feed valve 18 is arranged at the joint layer feed inlet 15. The bottom of the connecting layer coating box 19 is provided with a connecting layer discharging pipe 24, a first flow rate detector 22 and a first speed control valve 23 are arranged in the connecting layer discharging pipe 24, the first flow rate detector 22 and the first speed control valve 23 are connected with a controller, the first speed control valve 23 and the first flow rate detector 22 are coordinated, the actual flow rate of the connecting layer coating in the connecting layer discharging pipe 24 is determined according to the road width driving speed, and the road surface thickness of the connecting layer is kept at 0.3-0.5mm during construction and is not too large or too small by adjusting the first speed control valve 23. The lower end of the connecting layer discharging pipe 24 is provided with a PVC coating brush 26, so that the connecting layer coating can be uniformly coated on the road surface without forming large blocks to be piled up, as shown in fig. 2; the first discharge hole 25 is arranged in the connecting layer discharge pipe 24 above the paint brush 26, and the width of the first discharge hole 25 is one fourth to one third of the width of the connecting layer discharge pipe 24, so that the connecting layer flowing down from the upper part is extruded due to the reduced width of the lower part to fill the bottom of the connecting layer discharge pipe 24, and the connecting layer paint is ensured to be uniformly smeared on the road surface.
When in use, a certain amount of connecting layer paint is injected from the connecting layer feed inlet 15, then the feed valve 18 is closed, the connecting layer paint enters the connecting layer paint box 19 below the pressure plate 20, the first telescopic pipe 17 is connected with a power supply, and the telescopic pipe is driven to drive the pressure plate 20 to move up and down in the connecting layer paint box 19 so as to push the connecting layer paint to move downwards; the first telescopic tube 17 is of the type: XDHF12.
Flow rate calculation principle: the required joint layer area in construction is obtained by multiplying the width of the pavement, the running speed and the running time of the device, and the required joint layer coating volume is obtained by multiplying the thickness of 0.3-0.5 mm. According to the required paint volume, dividing the paint volume by the horizontal section area of the inner wall of the connecting layer discharging pipe 24 and dividing the paint volume by the running time, the flow rate required to be achieved by the connecting layer under the corresponding conditions can be obtained, and then the spraying of the connecting layer under the required thickness can be realized by adjusting the descending speed of the upper first telescopic pipe 17 and the size of the first speed control valve 23. The waste of the connecting layer is reduced as much as possible while the hydrophobic material is effectively bonded with the pavement, the material utilization rate is improved, the effective bonding with the pavement can be provided for the subsequent spraying of the nano-super-hydrophobic material, and the construction quality is greatly improved.
The nanometer-superhydrophobic coating system comprises a shearing box 34, wherein a nanometer material feed port 29 and a hydrophobic stock solution feed port 30 are arranged at the top of the shearing box 34, and sealing covers capable of being opened and closed are arranged at the tops of the nanometer material feed port 29 and the hydrophobic stock solution feed port 30; the bottom of the nanomaterial feed port 29 is provided with a nanoscale screen 33, and the pore size of the screen can be adjusted according to the requirements of different particle sizes, so that external large-particle impurities are prevented from entering the shear box.
The horizontal partition plate 63 is in sealing connection with the inner wall of the shear box 34 to divide the shear box 34 into an upper chamber and a lower chamber, and the lower chamber is the stock box 38; a hollow shearing support shaft 35 is arranged in a cavity above the partition plate 63, the outer wall of the shearing support shaft 35 is respectively and hermetically connected with the partition plate 63 and the top of the shearing box 34, a plurality of holes 37 are formed in the whole body of the shearing support shaft 35, a second telescopic pipe 32 is arranged at the top of the shearing box 34, a telescopic head of the second telescopic pipe 32 is in sliding and sealing connection with the inner wall of the shearing support shaft 35, and a shearing stirrer 36 is arranged at the bottom of the telescopic head; the second telescopic tube 32 is connected with a power supply, drives the telescopic head of the second telescopic tube 32 to move up and down together with the shearing stirrer 36, and the shearing stirrer 36 is connected with the power supply to perform rotary shearing; the second bellows 32 is model XDHA12 and the shear agitator 36 is model DJ1C-400.
An electric valve 27 is arranged between the lower port of the shearing support shaft 35 and the stock box 38, when feeding is sheared, the electric valve 27 is controlled to be closed, the telescopic head of the second telescopic pipe 32 moves to the bottom of the shearing support shaft 35 to occupy the whole shearing support shaft 35, quantitative nano materials and hydrophobic stock solution enter the shearing box 34 through the nano material feed inlet 29 and the hydrophobic stock solution feed inlet 30 respectively, and then the nano material feed inlet 29 and the hydrophobic stock solution feed inlet 30 are sealed, so that the shearing box is in a sealed state. Subsequently, the second telescopic tube 32 and the shearing stirrer 36 are started, and when the telescopic head of the second telescopic tube 32 moves upwards rapidly, no air exists between the telescopic head and the liquid, and negative pressure is generated; meanwhile, since the internal liquid is extruded through the opening 37 when the shear agitator 36 is at the lower end, the liquid level inside the shear support shaft 35 is far lower than the liquid level of the external liquid of the shear support shaft 35 at this time, so that a large hydraulic pressure difference is generated between the two; finally, under the dual actions of internal and external hydraulic pressure difference and negative pressure, the nano material and the hydrophobic stock solution are extruded from the opening 37 to enter the shearing support shaft 35 to generate impact with the shearing stirrer 36, so that the shearing acting force between the nano material and the hydrophobic stock solution is increased, and the shearing effect is improved. The mixture is continuously squeezed and sucked into the shear support shaft 35 through the opening 37 during the up and down movement of the telescopic head of the second telescopic tube 32, and the shear stirrer 36 increases the shear force with the mixture under the condition of pressure change during the up and down movement.
In some embodiments, as shown in fig. 5-6, a plurality of sharp teeth 41 are spaced from the edge of the opening 37, when the mixture passes through the opening 37, the pressure of each sharp tooth 41 on the edge of the opening 37 is increased under the action of suction and pressure, the secondary shearing effect is enhanced, and finally the nano material and the hydrophobic stock solution are fully and uniformly mixed under the combined action of the shearing stirrer 36 and the opening 37. The aperture of the opening 37 is 1cm-1.5cm, the diameter of the inner circle surrounded by the tips of the sharp teeth 41 is 0.5cm-1cm, if the aperture of the opening 37 is too large, the shearing action of the sharp teeth 41 on the liquid flowing through the opening is weakened, and the too small aperture of the opening 37 can cause too slow speed when the liquid flows into the shearing support shaft, so that the discharging speed is reduced. The second bellows 32 will continuously break up air bubbles formed in the shear box 34 during the up and down movement. On one hand, a short negative pressure is formed in the channel of the shearing support shaft 35 in the rapid upward movement process, and the air pressure in the air bubbles is obviously higher than the pressure formed in the channel, so that the air bubbles are broken by the internal air and overflows, and the purpose of destroying the air bubbles is achieved; on the other hand, the sharp teeth 41 provided at the openings 37 are also damaged during the process of quickly passing through the air holes by small bubbles, thereby reducing the generation rate of bubbles.
In some embodiments, a pressure sensor is disposed inside the partition 63, the pressure sensor is connected to a controller, the nano material mass and the hydrophobic raw liquid mass of each mixing are set respectively, the controller transmits signals to a first electromagnetic valve 28 and a second electromagnetic valve 31 (existing) connected to the pressure sensor, the first electromagnetic valve 28 is installed at the hydrophobic raw liquid feed inlet 30, and the second electromagnetic valve 31 is installed at the nano material feed inlet 29. When not energized, the two solenoid valves are in a closed state under the force of the springs. After the second electromagnetic valve 31 is electrified, repulsive force is firstly generated to open, the nano material falls, the value of the pressure sensor is increased, after the set quality is reached, a signal is transmitted to the controller, the second electromagnetic valve 31 is controlled to be powered off, and the valve is closed under the action of a spring. Simultaneously, the first electromagnetic valve 28 is electrified, the hydrophobic stock solution starts to enter, and the first electromagnetic valve 28 is powered off after the set value is reached. When the final set value is reached, the pressure sensor transmits a control signal to the controller to control the second telescopic tube 32 and the shearing stirrer 36 to work, and the shearing starts to operate.
During feeding, the super-hydrophobic stock solution is fed according to the volume of the shearing box 34, so that the volume of the material reaches 95% -98% of the volume of the shearing box 34, the volume of the shearing box 34 is the same as that of the stock box 38, the internal volume can be maintained before and after shearing and is not obviously changed due to bubbles, meanwhile, the amount of bubbles in a product is reduced in a fixed volume mode, the sufficient dispersion of nano materials and the effective mixing of the nano materials and the hydrophobic stock solution are ensured, the effective re-liquefaction of bubbles in the shearing process is realized, and the influence of the bubbles on the subsequent spraying quality is avoided. The construction process does not need to manually add raw materials, and the construction efficiency can be effectively improved. If the volume of the material is too small, the vacant gap at the top of the shearing box 34 is too large, so that a larger reserved space exists after the bubbles are generated, and the elimination of the bubbles is not facilitated; if the volume of the material is too large, the internal pressure may be too large under the action of the heated gas pressure, so that the extrusion force of the bottom to the discharge port is too large, and the discharge valve at the bottom is easy to damage.
After shearing for a set time, the electrically operated valve 27 (Q911F-16P) between the lower port of the shear support shaft 35 and the holding tank 38 is opened and the mixture enters the holding tank 38 and the controller starts the next control cycle when the liquid completely enters the holding tank 38, i.e. the pressure sensor returns to 0 (settable error range). The model of the controller in the embodiment is easy-to-control SK3U-24MRT-PRO, and the specific using method is known in the art.
The first temperature sensor 39 and the second pressure sensor 40 are arranged in the storage box 38, the gas transmission device is arranged at the bottom of the storage box 38 and comprises a first gas transmission pipe 43, a gas transmission hole 47 is formed in the pipe wall of the first gas transmission pipe 43 in the storage box 38, the first gas transmission pipe 43 is connected with a first gas pump group 42, a first pressure sensor 44 and a gas control valve 45 are arranged on the first gas transmission pipe 43, and a first heating resistance wire 46 is arranged in the first gas transmission pipe 43 and used for heating gas; the outer wall of the storage bin 38 is provided with an insulating layer. Firstly, the air is heated by the first heating resistance wire 46, and then the mixture is heated by high-temperature gas, so that the problems of increasing the thermal movement of the nano material, supplementing the pressure deficiency of the top caused by the falling of the material, preventing the nano material from settling and the like are solved; the other two functions are to heat the residual bubbles in the mixture to raise the temperature of the air inside the bubbles, so that the volume of the gas expands, and the purpose of eliminating the residual bubbles is achieved. Meanwhile, when the temperature reaches equilibrium in the later heating stage, the air pressure at the top of the liquid can be continuously increased through air supply (the middle partition plate 63 separates the material preparation area from the storage box 38, and the upper system cannot be influenced in the air supply process), so that the air pressure outside the air bubbles in the storage box 38 is larger than the air pressure inside the air bubbles to generate cracking, and the effect of secondarily eliminating the air bubbles is achieved. The inner walls of the shear box 34 and the stock box 38 are made of hydrophilic materials, so that adhesion between the mixture and the inner wall can be effectively prevented.
The bottom of the storage box 38 is provided with a super-hydrophobic paint discharging pipe 48, the sheared nano-super-hydrophobic paint enters the super-hydrophobic paint discharging pipe 48, a second flow rate detector 49 and a second speed control valve 50 are arranged in the super-hydrophobic paint discharging pipe 48, the second flow rate detector 49 and the second speed control valve 50 are connected with a controller, and the same principle as a joint layer coating system is used for controlling the discharging speed of the super-hydrophobic paint, so that the material is uniformly sprayed on a construction pavement, the super-hydrophobic coating on a unit area is accurately controlled, and the material utilization rate is improved.
A plurality of second atomizing spray heads 52 are arranged at the discharge hole at the bottom of the storage box 38, the second atomizing spray heads 52 are made of hydrophilic materials, the nanometer-superhydrophobic coating in the storage box 38 is uniformly covered on the upper part of the connecting layer in an atomizing mode through the second atomizing spray heads 52, and the phenomenon that the sprayed liquid speed is excessively fast to wash the coating of the connecting layer is avoided. A second discharge hole 51 is formed in the super-hydrophobic coating discharge pipe 48 above the second atomization nozzle 52, the width of the second discharge hole 51 is one fourth to one third of the width of the super-hydrophobic coating discharge pipe 48, and the material is blocked by a port wall at the discharge port so as to be pressurized, so that the material is ensured to flow out of an opening of the discharge port under enough pressure; under the condition that no discharge hole wall exists, the discharge rate is not uniform enough when discharging due to the action of gravity, so that the materials are not uniformly distributed on the discharge brush.
As shown in fig. 3-4, a circular rotating disc 12 is arranged in the second atomizing nozzle 52, a plurality of through holes are formed in the outer wall 21 of the second atomizing nozzle 52, an atomizing port 16 is formed outside the through holes, the inner diameter of the atomizing port 16 is the same as the aperture of the through holes in the outer wall 21, and the mixture is prevented from forming pressure difference in the atomizing port, so that the change of the surface tension of the liquid is avoided, and bubbles are formed at the outlet of the atomizing port; the inner diameter of the atomizing port 16 is 300nm-400nm, which is about 4-5 times larger than the size of the nano material, so that the content of the sprayed nano material can be limited by the size of the atomizing port, and the nano material can be further dispersed in the coating; meanwhile, the discharge rate of spraying is not reduced because the diameter of the atomizing port is too small, and the construction time is prolonged. The included angle between the atomizing ports 16 on two sides and the vertical direction is 30-45 degrees, firstly, the discharging direction can be ensured to be inclined downwards, and the two sides are covered on the road surface; secondly, the mixture in the horizontal centrifugal direction is given to reduce the flow speed by changing the movement direction again, so that the atomization effect is realized. Too large angle can cause too large sprinkling area and uneven sprinkling at the bottom; too small an angle can cause the flow velocity of the mixture to increase under the action of gravity, so that too large impact is generated on the road surface, and the spraying effect of the atomization center is poor.
Before starting spraying, the first air pump group 42 is opened to supply air to the first air pipe 43, and when the internal pressure value of the first pressure sensor 44 is higher than that of the second pressure sensor 40, the air control valve 45 is opened. At the same time, the first heating resistance wire 46 is activated to heat the gas fed into the tank 38. When the gas is heated, it enters the storage tank 38 through the gas feed hole 47. So can utilize gas to shift up and drive liquid to flow, prevent that nano-material from producing the subsidence in the spraying in-process storage box 38 bottom, cause top nano-material content not enough, influence subsequent construction quality, thereby avoid bottom nano-material too much piling up simultaneously to block up the pipeline. On the other hand, the gas rises to the top of the storage box 38 after entering the storage box 38, so that the situation that the flow rate of the liquid is greatly reduced or even stopped due to the fact that the upper pressure is too small in the liquid descending process is avoided, and the liquid can flow downwards at a larger speed. Meanwhile, the heated gas can be used for heating the nano-superhydrophobic coating, and the molecular thermal motion of the mixture in the storage box is enhanced by properly heating, so that the risk of sedimentation of the material is further reduced. A first temperature sensor 39 is provided, which is connected to the first heating resistance wire 46, and when the temperature detected by the first temperature sensor 39 is stabilized at 30-35 ℃, the first heating resistance wire 46 stops heating; conversely, when the temperature is less than the prescribed range, the first heating resistance wire 46 will re-heat the air to ensure the proper thermal motion temperature.
The air drying system comprises a second air pump group 53, the second air pump group 53 is connected with a second air pipe 55, and a second heating resistance wire 54 is arranged in the second air pipe 55 and used for heating air; the end of the second air pipe 55 is provided with a drying outlet 57, a second temperature sensor 56 is arranged at the drying outlet 57, and the second temperature sensor 56 and the second heating resistance wire 54 are connected with a controller. After the nano-super-hydrophobic coating is sprayed by the nano-super-hydrophobic coating system, the surface of the nano-super-hydrophobic coating is dried by an air drying system. The second air pump group 53 pumps the air heated by the second heating resistance wire 54 to the second air pipe 55, so that the temperature at the drying outlet 57 reaches 30-35 ℃, the air drying time of the hydrophobic coating is reduced as much as possible, the cooperative joint layer can be adhered to the road surface more quickly, the bonding performance of the spraying material and the road surface is further improved, and the durability of the spraying material is improved. When the temperature detected by the second temperature sensor 56 is insufficient, the second heating resistance wire 54 is started again through the controller to heat the pumped air; when the temperature reaches the prescribed range, the second heating resistance wire 54 is deenergized by the controller to stop heating the air. The two ends of the drying outlet 57 are arranged to be vertically downward at 90 degrees, so that the air is blown out vertically downward, the super-hydrophobic coating material is not blown to other places, the front surface of the coating material is guaranteed to be subjected to wind, the air drying speed of the coating material is accelerated, the influence of hydrophilic impurities such as dust in the air of a construction site on the hydrophobic performance of the coating is reduced, and the super-hydrophobic effect of the coating is exerted to the maximum extent. The resistance wire heating is adopted because the temperature of the pumped gas is properly increased, which is beneficial to accelerating the air drying speed of the coating.
The construction of the connecting layer and the construction of the super-hydrophobic coating are not integrated by the existing construction scheme, repeated construction is needed, and manpower and material resources are wasted. The existing construction technology can not process the coating rapidly in time after the coating is sprayed, so that hydrophilic impurities (such as dust and small-particle-size sand) in a construction site are mixed into the coating material which is not completely dried, and the hydrophobicity of the coating can be reduced.
The embodiment of the invention integrates the construction methods of the nano material, the super-hydrophobic stock solution and the epoxy bonding layer, and simultaneously has the functions of cleaning before spraying, drying after spraying and the like. The sedimentation and accumulation phenomena of the nano materials in the mixed colloid can be eliminated when the nano super-hydrophobic coating is constructed, so that the coating can be covered on the pavement more uniformly and effectively; continuous mechanical construction is realized, spraying efficiency is improved, and meanwhile, the influence of artificial factors on construction quality is reduced; the pavement is cleaned before spraying, so that the influence of impurity substances on the effect of the hydrophobic material is reduced; the sprayed nano hydrophobic material can be rapidly air-dried and attached to the connecting layer, so that the hydrophobic performance is maximally realized; continuous material preparation and continuous discharging can be achieved in the construction process, and automation of the construction process is realized.
In the case of example 2,
the application method of the nanometer super-hydrophobic material spraying device comprises the following steps:
s1, starting a second telescopic pipe 32, enabling a telescopic head of the second telescopic pipe 32 to move to the bottom of a shearing support shaft 35, and enabling an electric valve 27 between a lower port of the shearing support shaft 35 and a storage box 38 to be in a closed state; adding a tie layer coating material to the tie layer coating system according to the calculated proportion, adding a nano material and a super-hydrophobic stock solution to the nano-super-hydrophobic coating system, and sealing a nano material feed port 29 and a hydrophobic stock solution feed port 30;
s2, starting the second telescopic pipe 32 and the shearing stirrer 36, so that the telescopic head of the second telescopic pipe 32 moves upwards rapidly, and under the action of negative pressure, the nano material and the hydrophobic stock solution are extruded from the opening 37 to enter the shearing support shaft 35; the telescopic head of the second telescopic tube 32 reciprocates up and down, the shearing stirrer 36 rotates and shears, and the combined action ensures that the nano material and the hydrophobic stock solution are fully and uniformly mixed; opening an electric valve 27 between the lower port of the shearing support shaft 35 and the storage box 38, and enabling the uniformly stirred nano-super-hydrophobic coating to enter the storage box 38; then the electric valve 27 is closed, and simultaneously, a gas transmission device arranged at the bottom of the storage box 38 is opened;
s3, determining the running speed of the bearing moving system and the discharging speed of the connecting layer coating system and the nano-super-hydrophobic coating system according to the planned spraying thickness;
s4, when the bearing moving system starts to run, starting negative pressure dust collection equipment to remove broken stones, dust and other impurities remained in gaps on the pavement; the tie layer coating system then uniformly spreads the tie layer coating over the pavement, the nano-superhydrophobic coating within the bin 38 being uniformly covered over the tie layer by the second atomizer head 52; and (5) after spraying, drying the coating by an air drying system.
The substances contained in the super-hydrophobic stock solution tend to generate a large number of bubbles when subjected to high-speed shearing. And a large number of bubbles can seriously reduce the dispersity of the nano material in the hydrophobic stock solution, and reduce the fluidity and the reactivity of the nano material with the superhydrophobic stock solution. Under normal temperature and pressure, the amount of the sheared bubbles is increased along with the increase of shearing time, as shown in fig. 7, the initial volume is 150ml, after shearing for 5 minutes, the volume expands to more than 450ml under the influence of the bubbles, and is more than 3 times of the initial volume; the hydrophobic material after being stirred for half an hour still has a plurality of bubbles, is difficult to uniformly spray on the pavement, and the construction quality is difficult to meet the requirements.
Fig. 8 shows a road surface sprayed with the nano super-hydrophobic material without using the device, and it can be seen that large-area infiltration is generated under the action of water, and the water cannot be discharged in time and is adhered to the road surface. After the asphalt pavement is sprayed for half an hour by using the spraying device of the embodiment of the invention, as shown in fig. 9, moisture is not adhered to the pavement, but obvious water drops are formed on the surface of the pavement, most of the water drops are discharged through the holes of the drainage pavement, the contact angle with the pavement is obviously larger than 90 degrees, strong hydrophobicity is generated, no infiltration phenomenon is generated, and the device is used for spraying, so that the pavement has good hydrophobic effect and is convenient for drainage and ice coagulation prevention; meanwhile, no bubbles remain on the pavement, which means that the hydrophobic material can have good adhesion with the pavement; the thickness of the hydrophobic layer of the pavement is good, normal use functions of the asphalt pavement are not affected, and the problems can be well overcome.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (10)
1. The nanometer super-hydrophobic material spraying device comprises a bearing moving system and is characterized in that a cleaning system, a connecting layer coating system, a nanometer-super-hydrophobic coating system and an air drying system are sequentially arranged along the advancing direction;
the cleaning system comprises a negative pressure dust collection device;
the connecting layer coating system is used for uniformly coating the connecting layer coating on the road surface;
the nanometer-superhydrophobic coating system comprises a shearing box (34), wherein a nanometer material feed inlet (29) and a hydrophobic stock solution feed inlet (30) which can be opened and sealed are arranged at the top of the shearing box (34), a horizontal partition plate (63) is connected with the inner wall of the shearing box (34) in a sealing way, the shearing box (34) is divided into an upper chamber and a lower chamber, and the lower chamber is a stock box (38); a hollow shearing support shaft (35) is arranged in a cavity above the partition plate (63), the outer wall of the shearing support shaft (35) is respectively and hermetically connected with the partition plate (63) and the top of the shearing box (34), a plurality of holes (37) are formed in the whole body of the shearing support shaft (35), a second telescopic pipe (32) is arranged at the top of the shearing box (34), a telescopic head of the second telescopic pipe (32) is in sliding and sealing connection with the inner wall of the shearing support shaft (35), and a shearing stirrer (36) is arranged at the bottom of the telescopic head; an electric valve (27) is arranged between the lower port of the shearing support shaft (35) and the storage box (38); the bottom of the storage box (38) is provided with a gas transmission device, and a plurality of second atomizing spray heads (52) are arranged at the bottom discharge hole of the storage box (38);
and the air drying system is used for drying the surface of the nano-super-hydrophobic coating after the spraying is finished.
2. The nanometer super-hydrophobic material spraying device according to claim 1, wherein the bearing moving system comprises a bearing plate (1), a power propulsion device is arranged on the bearing plate (1), and wheels (2) are arranged at the bottom of the bearing plate (1).
3. The nanometer super-hydrophobic material spraying device according to claim 1, wherein a plurality of sharp teeth (41) are arranged at intervals on the edge of the opening (37), the aperture of the opening (37) is 1cm-1.5cm, and the diameter of the inner circle surrounded by the tips of the sharp teeth (41) is 0.5cm-1cm.
4. The nanometer super-hydrophobic material spraying device according to claim 1, wherein the negative pressure dust collection equipment comprises a dust collection box (4), a negative pressure fan (13) is arranged at one end of the dust collection box (4) so that the dust collection box (4) generates negative pressure, a suction pipe (3) is arranged at the other end of the dust collection box (4), a port of the suction pipe (3) is close to a road surface, and broken stone, dust and other impurities remained in a gap on the road surface are sucked into the dust collection box (4); the inner wall of the dust collection box (4) is provided with a buffer layer (5), a screen (7) is arranged in the dust collection box (4) and at the suction inlet of the negative pressure fan (13), and the electrostatic generator (6) is arranged on the box wall of the dust collection box (4) so that dust particles passing through the screen (7) are adsorbed on the inner wall of the dust collection box (4); a first atomization nozzle (8) is arranged in the dust collection box (4) to leave fine particles in the dust collection box (4).
5. The nanometer super-hydrophobic material spraying device according to claim 1, wherein the bonding layer coating system comprises a bonding layer coating box (19), a horizontal pressure plate (20) is in sliding connection with the inner wall of the bonding layer coating box (19), the top of the pressure plate (20) is fixedly connected with a telescopic head of a first telescopic pipe (17), the first telescopic pipe (17) is arranged at the top of the bonding layer coating box (19), a bonding layer feeding hole (15) is arranged on the side wall of the bonding layer coating box (19), and the bonding layer feeding hole (15) is communicated with a cavity below the pressure plate (20); the bottom of tie layer coating case (19) is equipped with tie layer discharging pipe (24), install first flow rate detector (22), first accuse speed valve (23) in tie layer discharging pipe (24), first flow rate detector (22), first accuse speed valve (23) all are connected with the controller, confirm the actual velocity of flow of tie layer coating in tie layer discharging pipe (24) according to the width speed of going of road width, the coating brush (26) of PVC material is installed to the lower extreme of tie layer discharging pipe (24), be equipped with first discharge gate (25) in tie layer discharging pipe (24) of coating brush (26) top, the width of first discharge gate (25) is the fourth to third of tie layer discharging pipe (24) width for tie layer coating evenly smears on the road surface.
6. The nanometer super-hydrophobic material spraying device according to claim 1, wherein a first temperature sensor (39) and a second pressure sensor (40) are installed in the storage box (38), a super-hydrophobic coating discharging pipe (48) is arranged at the bottom of the storage box (38), a second flow rate detector (49) and a second speed control valve (50) are installed in the super-hydrophobic coating discharging pipe (48), and the second flow rate detector (49) and the second speed control valve (50) are connected with a controller and used for controlling the discharging speed of the super-hydrophobic coating.
7. The nanometer super-hydrophobic material spraying device according to claim 1, wherein the gas transmission device comprises a first gas transmission pipe (43), a gas transmission hole (47) is formed in the pipe wall of the first gas transmission pipe (43) in the storage tank (38), the first gas transmission pipe (43) is connected with a first gas pump group (42), a first pressure sensor (44) and a gas control valve (45) are arranged on the first gas transmission pipe (43), and a first heating resistance wire (46) is arranged in the first gas transmission pipe (43) and used for heating gas; an insulating layer is arranged on the outer wall of the storage box (38).
8. The nanometer super-hydrophobic material spraying device according to claim 1, wherein the air drying system comprises a second air pump group (53), the second air pump group (53) is connected with a second air pipe (55), and a second heating resistance wire (54) is installed in the second air pipe (55) and used for heating air; a drying outlet (57) is arranged at the end part of the second air pipe (55), a second temperature sensor (56) is arranged at the drying outlet (57), and the second temperature sensor (56) and the second heating resistance wire (54) are connected with a controller; the two ends of the drying outlet (57) are arranged at 90 degrees and vertically downward, so that the front surface of the coating is ensured to be winded.
9. The nanometer super-hydrophobic material spraying device according to claim 1, wherein the second atomization nozzle (52) is made of hydrophilic materials, a rotating disc (12) is arranged in the second atomization nozzle (52), a plurality of through holes are formed in the outer wall (21) of the second atomization nozzle (52), an atomization opening (16) is formed in the outer side of each through hole, the inner diameter of each atomization opening (16) is the same as the aperture of each through hole in the outer wall (21), and the inner diameter of each atomization opening (16) is 300-400 nm; the included angle between the atomizing ports (16) on the two sides and the vertical direction is 30-45 degrees.
10. The method of using a nano super hydrophobic material spraying device according to claim 1, comprising the steps of:
s1, starting a second telescopic pipe (32) to enable a telescopic head of the second telescopic pipe (32) to move to the bottom of a shearing support shaft (35), and enabling an electric valve (27) between a lower port of the shearing support shaft (35) and a storage box (38) to be in a closed state; adding a bonding layer coating material to the bonding layer coating system according to the calculated proportion, adding a nano material and a super-hydrophobic stock solution to the nano-super-hydrophobic coating system, and sealing a nano material feed port (29) and a hydrophobic stock solution feed port (30);
s2, starting a second telescopic pipe (32) and a shearing stirrer (36) to enable a telescopic head of the second telescopic pipe (32) to move upwards rapidly, and extruding nano materials and hydrophobic stock solution from an opening (37) into a shearing support shaft (35) under the action of negative pressure; the telescopic head of the second telescopic tube (32) reciprocates up and down, the shearing stirrer (36) rotates to shear, and the combined action ensures that the nano material and the hydrophobic stock solution are fully and uniformly mixed; opening an electric valve (27), and enabling the uniformly stirred nano-super-hydrophobic coating to enter a storage box (38); then the electric valve (27) is closed, and the gas transmission device arranged at the bottom of the storage box (38) is opened at the same time;
s3, determining the running speed of the bearing moving system and the discharging speed of the connecting layer coating system and the nano-super-hydrophobic coating system according to the planned spraying thickness;
s4, when the bearing moving system starts to run, starting negative pressure dust collection equipment to remove broken stones, dust and other impurities remained in gaps on the pavement; the connecting layer coating system uniformly coats the connecting layer coating on the road surface, and the nano-super-hydrophobic coating in the storage tank (38) is uniformly covered on the upper part of the connecting layer through a second atomization nozzle (52); and (5) after spraying, drying the coating by an air drying system.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010042506A1 (en) * | 1996-07-19 | 2001-11-22 | Patrick Thomas Hogan | Method and apparatus for applying a liquid coating with an improved spray nozzle |
| US20080104885A1 (en) * | 2006-09-14 | 2008-05-08 | Jacques Sinoncelli | Static reactor system |
| JP2013245541A (en) * | 2012-05-29 | 2013-12-09 | Shingo Kizai Co Ltd | Pavement-marking line application apparatus |
| CN109929389A (en) * | 2019-04-09 | 2019-06-25 | 广州市维思涂料科技有限公司 | A kind of crack resistence anti-flaming dope and its coating process |
| CN213855362U (en) * | 2020-11-02 | 2021-08-03 | 东莞市神乐高分子科技有限公司 | Spraying device of nanometer mill base |
| CN113718615A (en) * | 2021-09-09 | 2021-11-30 | 六安万方沥青施工有限公司 | Asphalt mixing preparation device and preparation method by using waste road asphalt |
| CN114367398A (en) * | 2021-12-17 | 2022-04-19 | 江苏齐力涂装环境工程有限公司 | Paint mist treatment system and method for primer paint spraying chamber |
| CN115090382A (en) * | 2022-07-05 | 2022-09-23 | 长沙理工大学 | Asphalt production equipment capable of dispersing asphalt molecular groups and use method |
-
2023
- 2023-02-27 CN CN202310165391.1A patent/CN116163181B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010042506A1 (en) * | 1996-07-19 | 2001-11-22 | Patrick Thomas Hogan | Method and apparatus for applying a liquid coating with an improved spray nozzle |
| US20080104885A1 (en) * | 2006-09-14 | 2008-05-08 | Jacques Sinoncelli | Static reactor system |
| JP2013245541A (en) * | 2012-05-29 | 2013-12-09 | Shingo Kizai Co Ltd | Pavement-marking line application apparatus |
| CN109929389A (en) * | 2019-04-09 | 2019-06-25 | 广州市维思涂料科技有限公司 | A kind of crack resistence anti-flaming dope and its coating process |
| CN213855362U (en) * | 2020-11-02 | 2021-08-03 | 东莞市神乐高分子科技有限公司 | Spraying device of nanometer mill base |
| CN113718615A (en) * | 2021-09-09 | 2021-11-30 | 六安万方沥青施工有限公司 | Asphalt mixing preparation device and preparation method by using waste road asphalt |
| CN114367398A (en) * | 2021-12-17 | 2022-04-19 | 江苏齐力涂装环境工程有限公司 | Paint mist treatment system and method for primer paint spraying chamber |
| CN115090382A (en) * | 2022-07-05 | 2022-09-23 | 长沙理工大学 | Asphalt production equipment capable of dispersing asphalt molecular groups and use method |
Non-Patent Citations (1)
| Title |
|---|
| 张晓亮;: "陇东南地区桥面沥青混凝土铺装层施工工艺", 科技视界, no. 13, 5 May 2015 (2015-05-05) * |
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| CN116163181B (en) | 2024-05-28 |
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