Spraying acid-resistant self-cleaning soft and hard combined coating and spraying equipment thereof

Abstract

The invention relates to the technical field of acid-resistant coatings and spraying equipment thereof, in particular to a spraying acid-resistant self-cleaning soft and hard combined coating and spraying equipment thereof, which comprises the following components in parts by weight: 20-40 parts of bisphenol A type epoxy vinyl ester resin, 20-30 parts of vinyl propyl MT silicon resin, 20-30 parts of basalt-silicon carbide scale combined system, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide 5-20 parts of an additive; in the basalt-silicon carbide scale combined system, the thickness of the basalt scales is 2-5 microns, the sheet diameter is 100-300 microns, 25-32 parts by weight of the basalt scales with 100 meshes and 150 meshes are adopted in the combined system, the mass ratio of the gradient ratio of the basalt scales to the basalt scales with 150 meshes is 6: 4, the thickness of the silicon carbide scales is 50-100 nm, the sheet diameter is 1-3 microns, and the thickness of the silicon carbide scales is 1-3 microns. 5-10 parts by weight of glass flakes are used in a combined system, and the rest of glass flakes are used, so that the problem of thermal stress caused by temperature difference change is radically relieved, and the phenomena of cracking and delaminating of the coating are effectively avoided.

Description

Technical Field

[0001] This invention relates to the technical field of acid-resistant coatings and their spraying equipment, specifically to a spraying equipment for a self-cleaning, soft-hard bonded acid-resistant coating. Background Technology

[0002] Equipment such as sulfuric acid tank tops, phosphoric acid tank tops, and hoisting machinery in corrosive environments in the chemical and metallurgical industries are subjected to harsh conditions of strong corrosion, high wear, and outdoor exposure for extended periods. The performance of the surface protective coating directly determines the equipment's lifespan and safety. While the mainstream traditional vinyl flake coating is widely used in conventional corrosive environments, its performance shortcomings become apparent under strong acid media and synergistic conditions of corrosion, wear, and temperature differences, making it difficult to meet the requirements for long-term stable protection.

[0003] The core problems of traditional coatings are: First, the coefficient of thermal expansion is too high (12-15×10^-6 / ℃), which is different from the thermal expansion and contraction of the substrate, making it easy to crack and delaminate; Second, the impermeability is limited, the "maze effect" formed by a single glass flake is insufficient, and the weight loss rate under 98% concentrated sulfuric acid immersion reaches 2.0%-3.0%; Third, the performance synergy is poor, the adhesion is only 3-4 grade, the Taber abrasion weight loss is ≥12mg, and there is a lack of self-cleaning function; Fourth, the weather resistance is poor, aging and powdering after 5000-8000h salt spray test, and the adaptability is insufficient.

[0004] Current industry improvement solutions mostly focus on optimizing single performance aspects and lack a synergistic "resin-flake-additive" system. For example, simply adding silicone to improve hydrophobicity without optimizing the flake structure, or replacing basalt flakes without providing wear-resistant reinforcement, is insufficient. Therefore, the development of a soft-hard composite coating that combines low expansion coefficient, strong acid resistance, high adhesion, high wear resistance, and self-cleaning properties has become an urgent need. Summary of the Invention

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a sprayable acid-resistant self-cleaning soft and hard bonding coating and its spraying equipment, which can effectively solve the problems in the prior art.

[0007] Technical solution

[0008] This invention provides a sprayable acid-resistant self-cleaning soft-hard bonding coating, comprising the following components in parts by weight: 20-40 parts of bisphenol A type epoxy vinyl ester resin, 20-30 parts of vinyl propyl MT silicone resin, 20-30 parts of basalt-silicon carbide flake combination system, and 5-20 parts of additives.

[0009] Furthermore, in the basalt-silicon carbide flake composite system, the basalt flakes are all 2-5 μm thick and 100-300 μm in diameter, and 25-32 parts are used in the composite system by weight, using basalt flakes of 100 mesh and 150 mesh in a gradient ratio of 6:4. The silicon carbide flakes are 50-100 nm thick and 1-3 μm in diameter, and 5-10 parts are used in the composite system by weight, with the remaining parts being glass flakes.

[0010] Furthermore, the additive comprises the following components in parts by weight: 2-3 parts of hydroxyethyl methacrylate crosslinking monomer, 10-15 parts of zinc phosphate anti-rust pigment, 0.5-1 part of ultraviolet absorber, 0.3-0.5 parts of phenol-resistant antioxidant, 3-5 parts of chopped flexible organic fiber, and 1-2 parts of nano-silica modifier.

[0011] A spraying device for applying an acid-resistant self-cleaning soft-hard bonding coating includes a base platform, a storage tank and a pump mounted on the base platform. A position adjustment assembly is located at the front top of the base platform, and a spraying assembly is mounted on the position adjustment assembly. Two sets of columns are fixed to the top of the base platform. The position adjustment assembly includes a drive motor fixed to the top, a rotating shaft connected to the drive motor, and a threaded cylinder sleeved on the outside of the rotating shaft. The top of the threaded cylinder is fixedly connected to a fixed plate. The spraying assembly includes a frame, a sweeping structure, a spraying structure, a roller, and a receiving chamber, all housed within the frame. The sweeping structure is a modular structure, including a sweeping head, a positioning frame, and insert plates fixed to both sides of the positioning frame. Connecting plates are fixed to the ends of the insert plates. One side of the sweeping head is inserted into a slot at the front end of the positioning frame. The spraying structure includes a nozzle, a fixing plate for fixing the nozzle, and a gasket sleeved within the fixing plate. The pump is connected to the nozzle via a pipe. The roller is rotatably mounted in the middle of the frame.

[0012] Furthermore, a horizontal plate is fixed to the top of the column, the drive motor is fixed to the top of the horizontal plate, auxiliary slide rods are provided on both sides of the rotating shaft, and the two sides of the fixing plate are inserted into the auxiliary slide rods. The threaded cylinder is engaged with the outer wall of the rotating shaft. The storage tank and the pumping pump are connected by a pipeline.

[0013] Furthermore, side slots are provided on both sides of the frame, and the insert plate is inserted into the side slot. Both sets of connecting plates are fixedly connected to the insert plate by bolts. The size of the connecting plate is larger than the size of the side slot.

[0014] Furthermore, multiple sets of holes and slots are equally spaced on the outer side of the pipe, and a set of fixing plates is provided on both sides of the pipe. The two sets of fixing plates are combined to form a pipe clamp structure and are fixedly connected by locking bolts. A round hole is opened in the middle of the gasket and fixing plate on one side, and the nozzle is engaged and sleeved in the round hole to achieve communication with the pipe. The two sets of gaskets are combined to form a hollow square structure.

[0015] Furthermore, an I-shaped protrusion is fixed on the inner side of the cleaning head, the size of which is adapted to the size of the slot, and the front end of the cleaning head is a structure with multiple sets of grooves on its cross-section.

[0016] Furthermore, L-shaped components are fixed to both sides of the bottom end of the frame, and concave edges with dimensions matching those of the L-shaped components are provided on both sides of the top end of the receiving compartment.

[0017] Beneficial effects

[0018] In this invention, the coating uses a blend matrix of 20-40 parts bisphenol A type epoxy vinyl ester resin and 20-30 parts vinyl propyl MT silicone resin, combined with a "basalt flake + silicon carbide flake" composite system, which reduces the linear expansion coefficient of the coating to be closer to that of substrates such as metal and concrete. This fundamentally alleviates the thermal stress problem caused by temperature changes, effectively preventing cracking and delamination of the coating. Even under wide temperature ranges of -5℃ to 40℃ and sudden changes in day and night temperature outdoors, it can still maintain structural integrity, significantly improving the long-term bonding stability between the coating and the substrate.

[0019] In this device, the position adjustment component is driven by a horizontal plate that fixes the drive motor, which in turn drives the rotating shaft to mesh with the threaded cylinder. The fixed plate slides smoothly along the auxiliary slide bars on both sides. The spraying component integrates sweeping, spraying, rolling, and recycling functions: the sweeping structure uses a plate to fit with the side groove of the frame, and the connecting plate is fixed with bolts to achieve quick disassembly and assembly of the sweeping head. The I-shaped protrusion and slot fit together to ensure stable installation, and the front groove structure improves the impurity removal efficiency by 50%. The spraying structure adopts a double fixed plate tube clamp design, and the gasket seals and nozzles mesh together to reduce the leakage rate. The middle roller roll eliminates coating bubbles, and the bottom receiving bin is fixed by an L-shaped part that fits with the concave edge to improve the recycling rate and reduce waste and pollution. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a structural breakdown diagram of the present invention;

[0023] Figure 3 This is a structural exploded view of the position adjustment component in this invention;

[0024] Figure 4 This is an exploded view of the spraying assembly in this invention;

[0025] Figure 5 This is a schematic diagram of the sweeping structure, spraying structure, and roller in this invention;

[0026] Figure 6 This is a structural breakdown diagram of the sweeping structure and the spraying structure in this invention.

[0027] The labels in the diagram represent: 1. Base platform; 11. Column; 12. Horizontal plate; 2. Storage box; 3. Pump; 31. Pipe; 311. Groove; 4. Position adjustment assembly; 41. Drive motor; 42. Rotating shaft; 43. Fixing plate; 44. Threaded cylinder; 5. Spraying assembly; 51. Frame; 52. Side groove; 521. L-shaped part; 53. Sweeping structure; 531. Positioning frame; 532. Slot; 533. Insert plate; 534. Connecting plate; 535. Sweeping head; 536. Protrusion; 54. Roller; 55. Spraying structure; 551. Gasket; 552. Fixing plate; 553. Nozzle; 56. Receiving chamber; 561. Recessed edge. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] The present invention will be further described below with reference to embodiments.

[0030] Example 1: A spray-applied acid-resistant self-cleaning soft-hard bonding coating, comprising the following components in parts by weight: 35 parts bisphenol A type epoxy vinyl ester resin, 28 parts vinyl propyl MT silicone resin, 25 parts basalt-silicon carbide flake composite system, and 12 parts additives. In the basalt-silicon carbide flake composite system, the basalt flakes are all 2μm thick and 100μm in diameter, and 25 parts by weight are used in the composite system, employing both 100-mesh and 150-mesh options. The basalt flakes of different mesh sizes are mixed in a gradient ratio of 6:4. The silicon carbide flakes are 50 nm thick and 1 μm in diameter. In the combined system, 5 parts are used by weight, and the remaining parts are glass flakes. The additives include the following components by weight: 2 parts of hydroxyethyl methacrylate crosslinking monomer, 10 parts of zinc phosphate anti-rust pigment, 0.5 parts of ultraviolet absorber, 0.3 parts of phenol-resistant antioxidant, 3 parts of chopped flexible organic fiber, and 1 part of nano-silica modifier.

[0031] Using 20-30 parts of composite flakes, 25-32 parts are basalt flakes (2-5 μm thick, 100-300 μm in diameter, with a 6:4 gradient ratio of 100 mesh to 150 mesh) forming a parallel, overlapping "palace-like structure," while 5-10 parts are nanoscale silicon carbide flakes (50-100 nm thick) filling the gaps between the flakes. This extends the penetration path of corrosive media by 3-5 times compared to traditional coatings. Testing showed that the coating's water vapor permeability was as low as 1.1 × 10⁻⁵ g / cm³. 2 The weight loss rate of this coating is only ≤0.8% after immersion in 10% H2SO4 at 96℃ for 24 hours, which is far superior to the 2.0%-3.0% weight loss rate of traditional coatings. It can stably withstand long-term corrosion from sulfuric acid with a concentration of ≤98% and phosphoric acid with a concentration of ≤85%, thus significantly extending the protective life of strong acid storage tanks.

[0032] Example 2: A spray-applied acid-resistant self-cleaning soft-hard bonding coating, comprising the following components in parts by weight: 34 parts bisphenol A type epoxy vinyl ester resin, 33 parts vinyl propyl MT silicone resin, 27 parts basalt-silicon carbide flake composite system, and 6 parts additives. In the basalt-silicon carbide flake composite system, the basalt flakes are all 5 μm thick and 300 μm in diameter, and 32 parts by weight are used in the composite system, employing both 100-mesh and 150-mesh options. The basalt flakes of different mesh sizes are mixed in a gradient ratio of 6:4. The silicon carbide flakes are 100 nm thick and 3 μm in diameter. In the combined system, 10 parts are used by weight, and the remaining parts are glass flakes. The additives include the following components by weight: 3 parts of hydroxyethyl methacrylate crosslinking monomer, 15 parts of zinc phosphate anti-rust pigment, 1 part of ultraviolet absorber, 0.5 parts of phenol-resistant antioxidant, 5 parts of chopped flexible organic fiber, and 2 parts of nano-silica modifier.

[0033] This spray-applied, acid-resistant, self-cleaning, soft-hard bonding coating utilizes a core design of "resin system optimization + special flake modification + synergistic use of multifunctional additives" to specifically address the performance shortcomings of traditional vinyl flake coatings. It exhibits significant technical advantages under conditions of strong corrosion, high wear, and complex outdoor environments. The coating employs a blend matrix of 20-40 parts bisphenol A type epoxy vinyl ester resin and 20-30 parts vinyl propyl MT silicone resin, combined with a "basalt flake + silicon carbide flake" composite system. This reduces the coating's linear expansion coefficient, making it closer to that of substrates such as metals and concrete. It fundamentally alleviates the thermal stress problem caused by temperature changes, effectively preventing cracking and delamination. Even under wide temperature ranges of -5℃ to 40℃ and sudden changes in day and night temperature outdoors, it maintains structural integrity, significantly improving the long-term bonding stability between the coating and the substrate.

[0034] In this coating, through the scientific formulation of four types of functional additives and the synergistic effect of each component, the coating achieves simultaneous improvement in adhesion, weather resistance, abrasion resistance, and self-cleaning properties: 2-3 parts of hydroxyethyl methacrylate crosslinking monomer combined with 10-15 parts of zinc phosphate anti-rust pigment enable the coating to achieve a cross-cut adhesion level of 1-2, reducing substrate treatment requirements and solving the problem of easy peeling of traditional coatings; while the combination of 0.5-1 parts of ultraviolet absorber and 0.3-0.5 parts of hindered phenolic antioxidant enhances the coating's salt spray resistance. The coating exhibits excellent weather resistance for up to 10,000 hours without any abnormalities, with outdoor weather resistance improved by more than 50% compared to traditional coatings. The synergistic effect of 3-5 parts of chopped flexible organic fibers and silicon carbide flakes results in a coating Taber abrasion weight loss of ≤5mg and an impact resistance of 100kg·cm, fully meeting the high-frequency wear requirements of hoisting machinery. The synergistic effect of 1-2 parts of nano-silica modifier and silicone resin with hydrophobic properties ensures a water contact angle of ≥100°, enabling oil and dust to roll off naturally, reducing the adhesion of corrosive media, and lowering equipment maintenance costs.

[0035] Example 3: A spraying device for applying an acid-resistant self-cleaning soft-hard bonding coating, as shown in the attached document. Figure 1 -Appendix Figure 6 The system includes a base platform 1, a storage tank 2 mounted on the base platform 1, and a pump 3. A position adjustment assembly 4 is located at the front top of the base platform 1, and a spraying assembly 5 is mounted on the position adjustment assembly 4. Two sets of columns 11 are fixed to the top of the base platform 1. The position adjustment assembly 4 includes a drive motor 41 fixed to the top, a rotating shaft 42 connected to the drive motor 41, and a threaded cylinder 44 sleeved on the outside of the rotating shaft 42. The top of the threaded cylinder 44 is fixedly connected to a fixing plate 43, and the fixing plate 43 is fixedly connected to the spraying assembly 5.

[0036] The spraying assembly 5 includes a frame 51, a sweeping structure 53, a spraying structure 55, a roller 54, and a receiving chamber 56, all housed within the frame 51. The sweeping structure 53 is a modular structure, comprising a sweeping head 535, a positioning frame 531, and insert plates 533 fixed to both sides of the positioning frame 531. Each insert plate 533 has a connecting plate 534 fixed to its end. One side of the sweeping head 535 is inserted into a slot 532 at the front end of the positioning frame 531. The spraying structure 55 includes a nozzle 553, a fixing plate 552 for fixing the nozzle 553, and a gasket 551 fitted inside the fixing plate 552. The pump 3 is connected to the nozzle 553 via a pipe 31. The roller 54 is rotatably positioned in the middle of the frame 51. The spraying assembly 5 integrates four functions: sweeping, spraying, rolling, and recycling. It eliminates the need for additional pretreatment tools and recycling equipment, achieving "multiple processes completed in one setup," thus improving construction efficiency compared to traditional step-by-step construction. The multi-groove front end design of the sweeping structure 53 improves the impurity removal rate and provides a clean substrate for coating adhesion; the roller 54 rolling treatment can reduce the coating bubble rate and control the thickness deviation within a reasonable range; the continuous construction throughout the process reduces the substrate exposure time, reduces the impact of external pollution on coating quality, and makes the core performance of the coating, such as corrosion resistance, more stable.

[0037] A horizontal plate 12 is fixed to the top of the column 11, and the drive motor 41 is fixed to the top of the horizontal plate 12. Auxiliary slide rods are provided on both sides of the rotating shaft 42, and the two sides of the fixing plate 43 are inserted into the auxiliary slide rods. The threaded cylinder 44 is engaged with the outer wall of the rotating shaft 42. The storage tank 2 and the pumping pump 3 are connected through the pipe 31. The equipment adopts the transmission structure of "drive motor 41-rotating shaft 42-threaded cylinder 44" with the auxiliary slide rod guide, which greatly improves the linear displacement accuracy of the spraying component 5 and avoids the problem of spraying position deviation caused by manual adjustment of traditional equipment. The rotating shaft 42 can rotate 360°. Combined with the linear adjustment function, it can flexibly adapt to the spraying needs of different working conditions such as the arc surface of the sulfuric acid tank top, the complex curved surface of the hoisting machinery, and the flat surface, thus expanding the applicability of the equipment. Compared to traditional fixed-station spraying equipment, the nozzle 553 of the spraying structure 55, with its meshing connection to the pipe 31 and the sealing design of the gasket 551, effectively reduces leakage and waste during material transportation. The precise locking and fixing design of the receiving chamber 56 enables efficient recovery of excess paint mist and dripping materials, reducing raw material loss. Simultaneously, centralized recovery avoids environmental pollution caused by paint mist dispersion, meeting green construction requirements and reducing environmental treatment costs.

[0038] Both sides of the frame 51 are provided with side grooves 52, and the insert plate 533 is inserted into the side groove 52. Both sets of connecting plates 534 are fixedly connected to the insert plate 533 by bolts. The size of the connecting plate 534 is larger than the size of the side groove 52. Both sides of the bottom end of the frame 51 are fixed with L-shaped parts 521. Both sides of the top end of the receiving compartment 56 are provided with concave edges 561 whose size is adapted to the size of the L-shaped parts 521.

[0039] Multiple sets of slots 311 are equidistantly formed on the outer side of the pipe 31. A set of fixing plates 552 is provided on each side of the pipe 31, and the two sets of fixing plates 552 are combined to form a pipe clamp structure, which is fixedly connected by locking bolts. A circular hole is formed in the middle of one side gasket 551 and fixing plate 552, and the nozzle 553 is engaged and fitted into the circular hole to achieve communication with the pipe 31. The two sets of gaskets 551 are combined to form a hollow square structure. Each functional structure adopts a modular combination design: the coating structure 53 is connected to the side slot 52 via the insert plate 533. The cleaning head 535 is secured with bolts to the connecting plate 534 and adapted to the slot 532 via an I-shaped protrusion 536, enabling quick assembly and disassembly. Changing between different types of cleaning heads 535 takes only 5 minutes. The double-fixed plate 552 of the spraying structure 55 features a pipe clamp design, allowing for quick fixing and disassembly of the pipe 31 and nozzle 553 via locking bolts. The hollow square structure of the gasket 551 enhances sealing performance. The receiving chamber 56 is secured by an L-shaped piece 521 and a concave edge 561, facilitating rapid cleaning and recycling of materials. The modular design improves equipment maintenance convenience and reduces the cost of replacing vulnerable parts.

[0040] The inner side of the cleaning head 535 is fixed with an I-shaped protrusion 536. The size of the protrusion 536 is adapted to the size of the slot 532. The front end of the cleaning head 535 is a structure with multiple sets of grooves on its cross-section.

[0041] Therefore, when this device is in use, the storage tank 2 is used to pre-store the prepared acid-resistant self-cleaning coating material. During operation, the pump 3 is started, and the material in the storage tank 2 is extracted and transported to the spraying assembly 5 through the pipeline 31. The pipeline 31 connecting the storage tank 2 and the pump 3, and the pump 3 and the nozzle 553 of the spraying structure 55, forms a stable material conveying channel, ensuring continuous material supply and stable pressure during the spraying process, laying the foundation for uniform spraying. The position adjustment assembly 4 is fixedly supported by the horizontal plate 12 at the top of the two sets of columns 11. After the drive motor 41 is started, it drives the rotating shaft 42 to rotate. Since the threaded cylinder 44 is meshed with the outer wall of the rotating shaft 42, the rotational motion of the rotating shaft 42 is converted into the linear motion of the threaded cylinder 44, which in turn drives the fixed plate 43 fixed to the top of the threaded cylinder 44 to move synchronously. The fixed plate 43 is inserted on both sides of the auxiliary slide rods on both sides of the rotating shaft 42. The auxiliary slide rods limit and guide the movement direction of the fixed plate 43 to avoid deviation during movement and achieve precise displacement of the spraying assembly 5 along the linear direction. At the same time, the drive motor 41 can drive the rotating shaft 42 to rotate. Combined with the linear adjustment function, the spraying assembly 5 can adapt to the spraying requirements of different curved surfaces and different positions. The frame 51 of the spraying assembly 5 provides an installation carrier for each functional structure, realizing the continuous construction of "pretreatment-spraying-rolling". First, during the equipment movement or position adjustment, the front end of the sweeping head 535 of the sweeping structure 53 contacts the surface of the substrate to be sprayed. The multiple sets of grooves on its cross-section can efficiently clean surface impurities and dust. The sweeping head 535 is stably installed by the adaptation of the inner I-shaped protrusion 536 to the front slot 532 of the positioning frame 531. After the side plate 533 is inserted into the side groove 52 of the frame 51, it is fixed by bolts through the connecting plate 534 to ensure structural stability during the sweeping process. Next, the swept area moves into the spraying station with the equipment. The material conveyed by the pump 3 reaches the spraying structure 55 through the pipe 31. The groove 311 on the outside of the pipe 31 enhances the flow of material. The two sets of fixing plates 552 are combined to form a pipe clamp structure and fixed to the pipe 31 by locking bolts. The nozzle 553 in the central round hole is connected to the pipe 31. The material is atomized by the nozzle 553 and evenly sprayed onto the surface of the substrate. Finally, the sprayed coating passes through the roller 54 rotating in the middle of the frame 51 as the equipment moves. The roller 54 rolls the wet film to eliminate air bubbles inside the coating and make the coating thickness more uniform. Excess paint mist or dripping material generated during the spraying process falls into the receiving chamber 56 at the bottom of the frame 51 under the action of gravity. The receiving compartment 56 is quickly installed and fixed by the mating and engaging of the concave edges 561 on both sides of the top with the L-shaped parts 521 on both sides of the bottom of the frame 51, ensuring no leakage during the material recycling process and completing the centralized collection of waste.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spray-applied acid-resistant self-cleaning soft-hard bonding coating, characterized in that, The product comprises the following components in parts by weight: 20-40 parts of bisphenol A type epoxy vinyl ester resin, 20-30 parts of vinyl propyl MT silicone resin, 20-30 parts of basalt-silicon carbide flake composite system, and 5-20 parts of additives.

2. The spraying equipment for a self-cleaning, acid-resistant, soft-hard bonding coating as described in claim 1, characterized in that, In the basalt-silicon carbide flake composite system, the basalt flakes are all 2-5 μm thick and 100-300 μm in diameter, and 25-32 parts are used in the composite system by weight, using basalt flakes of 100 mesh and 150 mesh in a gradient ratio of 6:

4. The silicon carbide flakes are 50-100 nm thick and 1-3 μm in diameter, and 5-10 parts are used in the composite system by weight, with the remaining parts being glass flakes.

3. The spraying equipment for a self-cleaning, acid-resistant, soft-hard bonding coating as described in claim 1, characterized in that, The additive comprises the following components in parts by weight: 2-3 parts of hydroxyethyl methacrylate crosslinking monomer, 10-15 parts of zinc phosphate anti-rust pigment, 0.5-1 part of ultraviolet absorber, 0.3-0.5 parts of phenol-resistant antioxidant, 3-5 parts of chopped flexible organic fiber, and 1-2 parts of nano-silica modifier.

4. A spraying device for applying an acid-resistant self-cleaning soft-hard bonding coating, wherein the device is used to apply the acid-resistant self-cleaning soft-hard bonding coating as described in any one of claims 1-3, characterized in that, The system includes a base (1), a storage tank (2) mounted on the base (1), and a pump (3). A position adjustment assembly (4) is provided at the front of the top of the base (1). A spraying assembly (5) is mounted on the position adjustment assembly (4). Two sets of columns (11) are fixed to the top of the base (1). The position adjustment assembly (4) includes a drive motor (41) fixed to the top, a rotating shaft (42) connected to the drive motor (41), and a threaded cylinder (44) sleeved on the outside of the rotating shaft (42). The top of the threaded cylinder (44) is fixedly connected to a fixing plate (43). The fixing plate (43) is fixedly connected to the spraying assembly (5). The spraying assembly (5) includes a frame (51) and a sweeping structure (53) disposed within the frame (51). The spraying structure (55), roller (54) and receiving chamber (56) are combined. The sweeping structure (53) is a combined structure, including a sweeping head (535), a positioning frame (531) and insert plates (533) fixed on both sides of the positioning frame (531). The ends of the insert plates (533) are all fixed with connecting plates (534). One side of the sweeping head (535) is inserted into the slot (532) at the front end of the positioning frame (531). The spraying structure (55) includes a nozzle (553), a fixing plate (552) for fixing the nozzle (553) and a gasket (551) sleeved in the fixing plate (552). The pump (3) and the nozzle (553) are connected through a pipe (31). The roller (54) is rotatably set in the middle of the frame (51).

5. The spraying equipment for applying an acid-resistant self-cleaning soft-hard bonding coating according to claim 4, characterized in that, A horizontal plate (12) is fixed to the top of the column (11), the drive motor (41) is fixed to the top of the horizontal plate (12), auxiliary slide rods are provided on both sides of the rotating shaft (42), and the two sides of the fixing plate (43) are inserted on the auxiliary slide rods. The threaded cylinder (44) is engaged with the outer wall of the rotating shaft (42). The storage tank (2) and the pumping pump (3) are connected through a pipe (31).

6. The spraying equipment for applying an acid-resistant self-cleaning soft-hard bonding coating according to claim 4, characterized in that, The frame (51) has side slots (52) on both sides, and the insert plate (533) is inserted into the side slot (52). The two sets of connecting plates (534) are fixedly connected to the insert plate (533) by bolts. The size of the connecting plate (534) is larger than the size of the side slot (52).

7. The spraying equipment for applying an acid-resistant self-cleaning soft-hard bonding coating according to claim 4, characterized in that, Multiple sets of holes (311) are equally spaced on the outer side of the pipe (31). A set of fixing plates (552) is provided on both sides of the pipe (31), and the two sets of fixing plates (552) are combined to form a pipe clamp structure and are fixedly connected by locking bolts. A round hole is opened in the middle of the gasket (551) and the fixing plate (552) on one side. The nozzle (553) is engaged and sleeved in the round hole to achieve communication with the pipe (31). The two sets of gaskets (551) are combined to form a hollow square structure.

8. The spraying equipment for spraying an acid-resistant self-cleaning soft-hard bonding coating according to claim 4, characterized in that, The inner side of the cleaning head (535) is fixed with an I-shaped protrusion (536), the size of the protrusion (536) is adapted to the size of the slot (532), and the front end of the cleaning head (535) is a structure with multiple sets of grooves on its cross-section.

9. The spraying equipment for applying an acid-resistant self-cleaning soft-hard bonding coating according to claim 4, characterized in that, Both sides of the bottom end of the frame (51) are fixed with L-shaped parts (521), and the top sides of the receiving compartment (56) are provided with concave edges (561) with dimensions that are adapted to the size of the L-shaped parts (521).

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