Over-spray paint mist recovery device suitable for ship coating

Abstract

The utility model relates to the field of ship coating equipment, in particular to an over-spray paint mist recovery device suitable for ship coating. The device comprises a supporting frame, a recycling cover and a recycling box, the recycling cover is composed of a mounting part, a vacuum adsorption part and a first recycling pipe, the mounting part is connected with a spray gun head, and the vacuum adsorption part is provided with a vacuumizing hole and communicated with the mounting part through the first recycling pipe; and the recycling box is communicated with the first recycling pipe through a second recycling pipe, and is provided with a stirring mechanism for mixing the paint mist flocculating agent with the recycled paint mist. According to the device, by optimizing the structural design, the paint mist recycling efficiency is effectively improved, environmental pollution is reduced, and meanwhile the spraying quality is guaranteed.

Description

Technical Field

[0001] This application relates to the field of marine painting equipment, and in particular to an overspray paint mist recovery device suitable for marine painting. Background Technology

[0002] With the booming development of the shipbuilding industry and the deepening of the concept of green ships, many pollution problems still arise during the shipbuilding process. During ship painting operations, the overspray paint mist generated by airless spraying releases large amounts of toxic substances, seriously endangering the health of painting workers, and the substances released into the air pollute the ecological environment. Current technologies mostly utilize spray booths to recover the overspray paint mist, which lacks convenience and is unsuitable for high-altitude spraying operations on ships. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides an overspray paint mist recovery device suitable for ship painting, which can recover the emitted paint mist and reduce pollution.

[0004] The technical solution provided in this application for an overspray paint mist recovery device suitable for ship painting is as follows:

[0005] An overspray paint mist recovery device suitable for marine painting includes:

[0006] Support frame for mounting spray gun assembly;

[0007] The recovery hood includes a mounting part, a vacuum adsorption part, and a first recovery pipe. The mounting part is used to connect the spray gun head of the spray gun assembly. The vacuum adsorption part has a frame structure and a vacuum hole is provided on the inner side of the vacuum adsorption part. The first recovery pipe connects the mounting part and the vacuum adsorption part and communicates with the vacuum hole. The mounting part and the vacuum adsorption part are arranged in a staggered manner.

[0008] The recycling bin has a second recycling pipe on its exterior for connecting to the mounting part. The second recycling pipe is connected to the first recycling pipe. The recycling bin also has a stirring mechanism inside for mixing the paint mist flocculant and the recycled paint mist.

[0009] By adopting the above technical solution, the recovery hood is installed on the spray gun head through the installation part. The frame-shaped vacuum adsorption part is provided with a vacuum hole and is connected to the installation part through the first recovery pipe. The vacuum pump provides adsorption force to the vacuum hole. When the ship is painted, the spray gun sprays paint mist toward the ship surface. After the paint mist hits the ship surface, it bounces back and disperses in all directions. The vacuum hole adsorbs the dispersed paint mist, which can quickly capture the dispersed paint mist during the painting operation, reduce the paint mist dispersion rate, and improve the recovery efficiency.

[0010] Optionally, the vacuum adsorption part is an annular frame, and the inner side of the annular frame is provided with an annular groove, and the vacuum hole is located in the annular groove.

[0011] By adopting the above technical solution, the annular frame design makes the distribution of vacuum holes more uniform, thereby improving the paint mist collection efficiency. The annular groove design can effectively concentrate the paint mist, reduce the deposition of paint mist on the inner wall of the recovery hood, avoid affecting the worker's vision, and ensure the spraying quality and safe operation.

[0012] Optionally, the inner wall and bottom of the annular groove together define a right-angle structure, and the bottom of the annular groove is recessed towards the vacuum adsorption hole.

[0013] By adopting the above technical solution, the inner wall and bottom of the annular groove together define a right-angle structure, which makes the area around the vacuum hole form a stable space. The paint mist gathered in the groove is not easy to flow out of the groove, which helps to improve the concentration and stability of the paint mist during the suction process. The bottom of the annular groove is recessed towards the vacuum adsorption hole, which further increases the suction area, improves the suction efficiency, and reduces the possibility of paint mist escaping. This structure optimizes the collection path of paint mist, ensuring that paint mist can be more effectively sucked into the recovery device, thereby improving the recovery effect of the entire device.

[0014] Optionally, the mounting portion is provided with an extended nozzle for connecting the spray gun head, and the middle part of the mounting portion has a circumferential connecting portion, the extended nozzle passing through the circumferential connecting portion and extending to the space between the vacuum adsorption portion and the mounting portion.

[0015] By adopting the above technical solution, the design of the extended nozzle allows for effective adjustment of the distance between the spray gun head and the vacuum adsorption unit, ensuring that the spray gun head can be flexibly adjusted during the spraying process, thereby better adapting to the hull surface of different shapes and sizes. At the same time, the extended nozzle passes through the circumferential connection part, enhancing the overall stability and reliability of the structure, avoiding spray gun deviation caused by improper operation or external factors, and improving spraying quality and work efficiency.

[0016] Optionally, the mounting part is provided with a control valve, which is used to regulate the suction force of the vacuum hole, and the control valve is an electrically driven automatic valve.

[0017] By adopting the above technical solution, the control valve can precisely regulate the suction force of the vacuum hole, thereby ensuring effective recovery of overspray paint mist under different spraying conditions, preventing excessive paint mist deposition on the surface of the recovery hood from affecting the worker's vision, and ensuring spraying quality and efficiency. The electrically driven automatic valve can achieve precise control of the suction force of the vacuum hole. In actual operation, the suction force can be adjusted in real time according to different spraying operation needs to ensure effective recovery of paint mist without affecting spraying quality and efficiency. In addition, the automated control improves the ease of operation and intelligence of the equipment, reduces the need for manual intervention, and further enhances the safety and reliability of the work.

[0018] Optionally, the recycling hood has multiple perforated structures located between the mounting section and the vacuum adsorption section.

[0019] By adopting the above technical solution, the recovery hood is equipped with multiple hollow structures located between the installation section and the vacuum adsorption section. These hollow structures can effectively reduce the weight of the recovery hood, improve the overall portability and flexibility of the device, and facilitate operation by personnel when working at height. At the same time, the hollow structures can also enhance the air circulation inside and outside the recovery hood, which helps to prevent paint mist from condensing on the surface of the recovery hood during the recovery process, thereby maintaining good visibility and ensuring the smooth progress of the painting work. In addition, the hollow design also helps to reduce the impact of the recovery hood on the spraying area and improve the spraying accuracy and quality.

[0020] Optionally, the support frame is provided with a slide rail, and the spray gun assembly is movably mounted on the slide rail, which includes a transverse slide rail and a longitudinal slide rail.

[0021] By adopting the above technical solution, the support frame is equipped with a slide rail, and the spray gun assembly is movably mounted on the slide rail. The slide rail includes a transverse slide rail and a longitudinal slide rail. This design allows the spray gun assembly to move flexibly in multiple directions, ensuring that a larger spraying area can be covered during high-altitude spraying operations, improving the uniformity and coverage of the spraying. At the same time, the multi-directional movement capability also improves the flexibility of operation, reduces the time and labor intensity of manual adjustment, and improves work efficiency.

[0022] Optionally, the support frame is provided with a turntable, the spray gun assembly is mounted on the turntable, and is capable of rotating along a vertical plane.

[0023] By adopting the above technical solution, the spray gun assembly can be flexibly rotated in the vertical plane, ensuring that the spray gun and the surface to be sprayed maintain the best angle, thereby improving the spraying quality and work efficiency. The turntable design allows operators to quickly adjust the position of the spray gun according to actual needs, reducing the time and labor intensity of manual adjustment, and improving the safety and convenience of spraying operations.

[0024] Optionally, the top of the recycling bin is provided with a through hole, and an exhaust device is connected to the through hole.

[0025] By adopting the above technical solution, a through hole is set on the top of the recycling bin and an exhaust device is connected to the through hole, which can effectively discharge the clean gas after being treated by the paint mist flocculant. This design not only ensures the internal pressure balance of the device, but also prevents the leakage of incompletely treated harmful gases, ensuring the safety of operators. At the same time, the design of the exhaust device makes the entire recycling process smoother and improves recycling efficiency and safety.

[0026] Optionally, the recycling bin has a cylindrical structure, and the stirring mechanism includes three stirring blades, which are evenly arranged around the central axis of the recycling bin.

[0027] By adopting the above technical solution, the oversprayed paint mist can be effectively introduced into the recovery tank. The three-lobed stirring blades are evenly arranged around the central axis of the recovery tank to ensure that the paint mist and paint mist flocculant are fully mixed, thereby improving the flocculation effect of the paint mist. This design not only improves the recovery efficiency, but also makes it easier for the paint mist to form solid sediments during the recovery process, which is convenient for subsequent retrieval and reuse, thereby reducing environmental pollution and saving resources. At the same time, the cylindrical structure design helps to maintain a stable stirring effect, further improving the quality of paint mist treatment.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By using a hollowed-out annular recovery hood and the suction provided by a vacuum pump, the system effectively captures the escaping overspray paint mist, preventing the paint mist from condensing on the recovery hood wall. This avoids the cleaning problems associated with traditional sealed recovery hoods and improves the ease of use and maintenance of the device.

[0030] 2. The mixing tank inside the recycling bin chemically treats the oversprayed paint mist by adding paint mist flocculant, converting it into solid paint sludge and separating solid and gas, thus achieving effective recycling and reuse of paint mist, reducing waste of spraying materials and reducing environmental pollution;

[0031] 3. The support frame is equipped with slide rails and a rotatable turntable to ensure the stability and flexibility of the spray gun and recovery hood when working at height, guaranteeing the quality and efficiency of the spraying work, while reducing the labor intensity of workers and improving the overall safety and comfort of the operation. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of an overspray paint mist recovery device applicable to ship painting according to one embodiment of this application;

[0033] Figure 2 yes Figure 1A schematic diagram of a paint mist recovery hood for a marine painting overspray recovery device is shown.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Support frame; 2. Spray gun assembly; 21. Spray gun; 22. Paint can; 3. Recovery hood; 4. Mounting part; 5. Vacuum adsorption part; 6. Vacuum extraction port; 7. First recovery pipe; 8. Recovery box; 9. Second recovery pipe; 10. Stirring mechanism; 11. Extension nozzle; 12. Control valve; 13. Slide rail; 14. Turntable. Detailed Implementation

[0036] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to and includes any or all possible combinations of one or more of the listed items.

[0037] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0038] Currently, during ship painting, the overspray paint mist generated by airless spraying releases a large amount of toxic substances, seriously endangering the health of painting workers, and the substances released into the air also pollute the ecological environment. Therefore, this application mainly adopts an overspray paint mist recovery device suitable for ship painting, including a support frame, a recovery hood, and a recovery box, which effectively captures and treats the overspray paint mist, protecting worker health and reducing environmental pollution.

[0039] The present application will now be described in further detail with reference to the accompanying drawings.

[0040] Reference Figure 1 As shown in the figure, this application provides an overspray paint mist recovery device suitable for ship painting, including a support frame 1, a recovery hood 3 and a recovery box 8.

[0041] It should be noted that the spray gun assembly 2 includes a spray gun 21 and a paint can 22, which are connected by a pipe, and paint is delivered from the paint can 22 to the spray gun 21. The support frame 1 is used to install the spray gun assembly 2 and ensure the stability of the spray gun 21 when working at height.

[0042] Reference Figure 1 As shown, the support frame 1 is equipped with a slide rail 13, which includes a transverse slide rail 13 and a longitudinal slide rail 13. The support frame 1 also includes a turntable 14, which is movably mounted on the slide rail 13. The paint can 22 of the spray gun assembly 2 is mounted on the turntable 14 and can rotate along the vertical plane. The spray gun assembly 2 is mounted on the aerial spraying vehicle via the support frame 1. This design allows the spray gun assembly 2 to be adjusted in all directions during spraying operations, improving the uniformity and coverage of the spray, thereby improving the spraying quality and efficiency. The turntable 14 has a central rotating shaft, which is driven by a motor to achieve circumferential rotation.

[0043] The diameter of the turntable 14 can be selected according to actual needs. It is generally recommended to use a larger diameter turntable 14 to achieve a larger spraying coverage area. The rotation speed of the turntable 14 can be adjusted by a frequency converter to adapt to different spraying speeds and coating thicknesses.

[0044] The turntable 14 can also be equipped with a position sensor to monitor the position information of the spray gun assembly 2 in real time, and realize precise spraying path planning through a feedback control system. This can significantly improve spraying quality and reduce paint waste.

[0045] The transverse slide rail 13 ensures the lateral movement of the spray gun assembly 2 and the recovery hood 3 during spraying operations, while the longitudinal slide rail 13 ensures the longitudinal movement of the spray gun assembly 2 and the recovery hood 3 during spraying operations. The spray gun assembly 2 can move freely in multiple directions during spraying operations, increasing the flexibility and accuracy of the spraying process. Both the transverse and longitudinal slide rails 13 can be high-precision linear guides to ensure smooth movement and accurate positioning. The turntable 14 can be made of high-strength aluminum alloy, making it lightweight and durable.

[0046] Reference Figure 1 and Figure 2 As shown, the recovery hood 3 includes a mounting part 4, a vacuum adsorption part 5, and a first recovery pipe 7. The mounting part 4 is used to connect the spray gun 21 head of the spray gun assembly 2. The vacuum adsorption part 5 has a frame structure with a vacuum hole 6 on the inner side. The first recovery pipe 7 connects the mounting part 4 and the vacuum adsorption part 5 and is connected to the vacuum hole 6. The mounting part 4 and the vacuum adsorption part 5 are staggered to prevent the escaping paint mist from drifting to the position of the mounting part 4. At the same time, this design allows the recovery hood 3 to effectively capture the escaping paint mist without affecting the painter's line of sight.

[0047] The vacuum adsorption section 5 of the recovery hood 3 can adopt an annular frame structure, with an annular groove on the inner side of the frame, and the vacuum port 6 located within the annular groove. This design helps to distribute suction more evenly and improve paint mist recovery efficiency. The inner wall and bottom of the annular groove together define a right-angle structure, with the bottom of the annular groove recessed towards the vacuum adsorption port. This right-angle structure creates a stable space around the vacuum port 6, making it less likely for paint mist accumulated in the groove to flow out, which helps to improve the concentration and stability of paint mist during suction. The recessed design of the bottom of the annular groove towards the vacuum adsorption port guides the paint mist accumulated in the annular groove to flow to the vacuum adsorption port.

[0048] In addition, the mounting section 4 is provided with an extension nozzle 11 for connecting the nozzle of the spray gun 21. The extension nozzle 11 passes through the middle of the mounting section 4 and has a circumferential connecting part, extending to the space between the vacuum adsorption section 5 and the mounting section 4. This ensures a good fit between the spray gun 21 and the recovery hood 3, improving overall work efficiency.

[0049] The mounting section 4 is equipped with a control valve 12 for regulating the suction force of the vacuum port 6. The control valve 12 can be a manually adjustable valve or an electrically driven automatic valve to adapt to different working environments and needs. For example, an electrically driven automatic valve can automatically adjust the suction force according to actual needs, improving the convenience and accuracy of operation.

[0050] In addition, the recovery hood 3 may also have multiple perforated structures located between the mounting section 4 and the vacuum adsorption section 5. The perforated structure design not only reduces the weight of the recovery hood 3 but also improves ventilation, reduces the residence time of paint mist inside the recovery hood 3, and further enhances the recovery efficiency.

[0051] Reference Figure 1 As shown, the recovery tank 8 has a second recovery pipe 9 on its exterior for connecting to the mounting part 4, and an internal stirring mechanism 10 for mixing the paint mist flocculant and the recovered paint mist. The top of the recovery tank 8 has a through hole, through which an exhaust device is connected. The recovery tank 8 has a cylindrical structure, and the stirring mechanism 10 includes three stirring blades evenly arranged around the central axis of the recovery tank 8. This design allows the paint mist to fully mix and react within the recovery tank 8, forming solid deposits. Clean gas is discharged through the exhaust device at the top, ensuring that the recovered air is safe and harmless.

[0052] The internal stirring mechanism 10 of the recycling bin 8 can be driven by a motor to achieve continuous stirring and improve the flocculation effect of paint mist. A movable end cap is provided at the through-hole. This design maintains a stable airflow during recycling, preventing high-pressure gas from harming workers.

[0053] The length and width of the stirring blades can be rationally designed according to the dimensions of the recycling bin 8 to ensure optimal stirring effect. The stirring blades can be made of wear-resistant, corrosion-resistant stainless steel or other high-performance alloys to extend their service life. The surface of the stirring blades can be polished to reduce resistance and improve stirring efficiency.

[0054] The stirring mechanism 10 can also be equipped with temperature and pH sensors to monitor the reaction conditions inside the recovery tank 8 in real time, ensuring the optimal reaction effect of the paint mist flocculant. Temperature and pH data can be transmitted wirelessly to a control terminal for remote monitoring and management.

[0055] The through-holes are configured as small circular holes, and multiple through-holes are provided. This design can evenly distribute the discharged gas and reduce the risk of excessive local pressure. The movable end cap can be closed when venting is not needed to prevent external impurities from entering the recycling bin 8 and affecting the recycling effect.

[0056] The diameter of the through holes is generally 1-2 mm, and the number is determined according to actual needs. The movable cap can be designed for quick disassembly, facilitating maintenance and cleaning. The end caps can be made of high-temperature resistant and corrosion-resistant metal alloys to ensure long-term durability.

[0057] The exhaust system can also be equipped with a filter to intercept larger particles, preventing them from being discharged with the gas and polluting the environment. The filter can be replaced periodically according to actual conditions to ensure the continuous and efficient operation of the system.

[0058] During use, after the vacuum pump is turned on, it provides suction to the recovery hood 3. The suction of the recovery hood 3 is controlled by rotating the controllable valve on the recovery hood 3. After the airless spray gun 21 is turned on, the paint mist on the outside dissipates. The vacuum adsorption part 5 of the recovery hood 3 approaches the dissipated paint mist and sucks it up. The sucked-up paint mist enters the stirring tank of the recovery box 8. The stirring mechanism 10 starts working. After stirring, the paint residue solidifies and the clean gas is discharged, completing the recycling and reuse of the paint mist.

[0059] Using the suction provided by a vacuum pump, the recovery hood 3 effectively captures overspray paint mist generated during the painting process and transports it to the recovery tank 8. Inside the recovery tank 8, the paint mist reacts chemically with a flocculant to form solid deposits, and clean gas is discharged through an exhaust system, ensuring that air quality meets standards. This process not only improves the paint mist recovery rate but also reduces environmental pollution and improves the working environment.

[0060] Simulations of painting operations without this device show that airless spraying generates 30%-50% paint mist emission. Simulations of painting operations with this device installed show that the emission rate can be reduced to 6%-10%, demonstrating good recovery efficiency without significantly impacting spraying efficiency. The feasibility of the mixing tank recovery method is verified through simulation of the mixing process within the recovery tank 8.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A paint mist recovery device suitable for ship painting, characterized in that, include: Support frame (1) for mounting spray gun assembly (2); The recovery hood (3) includes an installation part (4), a vacuum adsorption part (5), and a first recovery pipe (7). The installation part (4) is used to connect the spray gun head of the spray gun assembly (2). The vacuum adsorption part (5) has a frame structure. The vacuum adsorption part (5) has a vacuum hole (6) on its inner side. The first recovery pipe (7) connects the installation part (4) and the vacuum adsorption part (5) and communicates with the vacuum hole (6). The installation part (4) and the vacuum adsorption part (5) are arranged in a staggered manner. The recycling box (8) is provided with a second recycling pipe (9) on the outside for connecting the mounting part (4), the second recycling pipe (9) is connected to the first recycling pipe (7), and the recycling box (8) is provided with a stirring mechanism (10) for stirring and mixing the paint mist flocculant and the recycled paint mist inside.

2. The paint mist recovery device for ship painting according to claim 1, characterized in that, The vacuum adsorption part (5) is an annular frame, and an annular groove is provided on the inner side of the annular frame. The vacuum hole (6) is located in the annular groove.

3. The paint mist recovery device for ship painting according to claim 2, characterized in that, The inner wall and bottom of the annular groove together define a right-angle structure, and the bottom of the annular groove is recessed towards the vacuum adsorption part (5).

4. A paint mist recovery device suitable for ship painting according to claim 1, characterized in that, The mounting part (4) is provided with an extension nozzle (11) for connecting the spray gun head. The middle part of the mounting part (4) has a circumferential connecting part. The extension nozzle (11) passes through the circumferential connecting part and extends to the space between the vacuum adsorption part (5) and the mounting part (4).

5. A paint mist recovery device suitable for ship painting according to claim 1, characterized in that, The mounting part (4) is provided with a control valve (12), which is used to regulate the suction force of the vacuum hole (6). The control valve (12) is an electrically driven automatic valve.

6. A paint mist recovery device suitable for ship painting according to claim 1, characterized in that, The recycling hood (3) has multiple hollow structures, which are located between the mounting part (4) and the vacuum adsorption part (5).

7. A paint mist recovery device suitable for ship painting according to claim 1, characterized in that, The support frame (1) is provided with a slide rail (13), and the spray gun assembly (2) is movably disposed on the slide rail (13). The slide rail (13) includes a transverse slide rail (13) and a longitudinal slide rail (13).

8. A paint mist recovery device suitable for ship painting according to claim 7, characterized in that, The support frame (1) is provided with a turntable (14), and the spray gun assembly (2) is mounted on the turntable (14) and can rotate along the vertical plane.

9. A paint mist recovery device suitable for ship painting according to claim 1, characterized in that, The top of the recycling bin (8) is provided with a through hole, and an exhaust device is connected to the through hole.

10. A paint mist recovery device suitable for ship painting according to claim 1, characterized in that, The recycling bin (8) has a cylindrical structure, and the stirring mechanism (10) includes three stirring blades, which are evenly arranged around the central axis of the recycling bin (8).

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