Water-based epoxy zinc-rich primer spraying excess material recovery device

Abstract

The invention relates to the technical field of recycling devices, in particular to a waterborne epoxy zinc-rich primer spraying excess material recycling device which comprises a guide rail, a sliding block is slidably arranged on the guide rail, a mounting plate is arranged at the top end of the sliding block, a supporting frame is fixedly connected to the top end of the mounting plate, a spraying assembly is arranged on the mounting plate, and a separating and recycling assembly is arranged on the inner side of the supporting frame. The separation and recovery assembly comprises a recovery tank mounted on the mounting plate, a connecting pipe is arranged at the top end of the recovery tank, a collecting barrel is mounted at the top end of the recovery tank, a third pump body is mounted at the top end of the collecting barrel, a flow guide pipe is arranged at the output end of the third pump body, sealing washers are arranged at one end of the flow guide pipe, filter cloth is arranged between the sealing washers, and a bag pipe is arranged between the filter cloth; the non-Newtonian fluid and the elastic hollow balls are arranged in the bag pipe, uniform rigid support can be formed on the filter cloth after the bag pipe expands, and direct impact of zinc powder particles in the coating can be effectively resisted.

Description

Technical Field

[0001] This invention relates to the field of recycling equipment technology, specifically to a recycling equipment for water-based epoxy zinc-rich primer spraying residue. Background Technology

[0002] Water-based epoxy zinc-rich primer is an environmentally friendly anti-corrosion coating with water-based epoxy resin as the base material and zinc powder as the main anti-rust pigment. It uses water as a diluent and contains no harmful volatile organic compounds such as benzene or formaldehyde. It features low VOC emissions from the inlet and outlet pipes, safety, environmental friendliness, and non-flammability. Relying on the cathodic protection effect of zinc powder, it provides long-lasting corrosion protection to steel substrates. It has strong adhesion, salt spray resistance, and impact resistance, and is widely used in spraying applications on steel structures, machinery, and ship components. It is currently the mainstream environmentally friendly primer in the industrial anti-corrosion field. A Chinese patent publication with publication number CN115624834A, dated January 20, 2023, discloses a dust removal and powder recovery device for a profile powder coating line. This device includes: "a cyclone separator, a first pipe, a bag filter, a second pipe, a water spray tower, an exhaust pipe, and an exhaust fan connected in sequence; the cyclone separator is connected to a first powder recovery pipe." Its beneficial effect is that the cyclone separator can separate powder materials from impurities and achieve the first step of powder material recycling. However, existing technologies have drawbacks: a large amount of fly-through residue is generated during the spraying of water-based epoxy zinc-rich primer. Cyclone separators are usually used to separate the mixed gas and impurities first. There will inevitably be impurities in the paint that have not been completely removed, so filter cloth needs to be designed for secondary filtration. However, due to the working characteristics of the cyclone separator, liquid paint and solid impurities will be thrown at high speed towards the filter cloth. The continuous impact can easily cause the filter cloth to deform, break and clog the filter pores. Therefore, it is necessary to propose a water-based epoxy zinc-rich primer spraying residue recovery device. Summary of the Invention

[0003] To address the problems in the prior art, this invention provides a device for recovering residual materials from waterborne epoxy zinc-rich primer spraying.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a water-based epoxy zinc-rich primer spraying residue recovery device, including a guide rail, a slider slidably mounted on the guide rail, a mounting plate at the top of the slider, a support frame fixedly connected to the top of the mounting plate, and a spraying component mounted on the mounting plate; The support frame is equipped with a collection assembly, which includes a support plate installed on the support frame. A cyclone separator is installed through the support plate. A second pump body is installed at the top of the cyclone separator. A suction pipe is fixedly connected to the output end of the second pump body. A collection cover is fixedly connected to one end of the suction pipe. A liquid outlet pipe is provided at the bottom end of the cyclone separator. The support frame is equipped with a separation and recycling assembly, which includes a recycling tank mounted on a mounting plate. The top of the recycling tank is equipped with a connecting pipe, and a collection cylinder is installed on the top of the recycling tank. A pump body three is installed on the top of the collection cylinder. A guide pipe is provided at the output end of the pump body three. A sealing gasket is provided at one end of the guide pipe. Filter cloth is provided between the sealing gaskets. A capsule is provided between the filter cloths. Several elastic hollow balls are provided inside the capsule. A pump body four is installed at the lower end of the outer wall of the recycling tank. A circulation pipe is provided at the output end of the pump body four.

[0005] Specifically, the spraying assembly includes a storage tank mounted on a mounting plate, a pump body at the top of the storage tank, a conduit fixedly connected to the output end of the pump body, a spray gun fixedly connected to one end of the conduit, and a controller installed on the upper part of the outer wall of the storage tank.

[0006] Specifically, the lower end of the outer wall of the storage tank is provided with inlet and outlet pipes, and the circulation pipe is connected to the inlet and outlet pipes.

[0007] Specifically, the bottom of the collection hood is provided with brackets distributed on the support plate, and the collection port of the collection hood is provided with a filter screen.

[0008] Specifically, the outlet pipe and the connecting pipe are detachably connected by flanges and bolts, and a sealing gasket is placed between the mating surfaces of the outlet pipe and the connecting pipe.

[0009] Specifically, the filter cloth has filter holes and mesh rib gaps between adjacent filter holes, and the capsules are correspondingly distributed inside the mesh rib gaps, and the capsules do not block the filter holes of the filter cloth.

[0010] Specifically, the bladder tube is connected to the guide tube and the sealing gasket.

[0011] One of the beneficial effects of this invention is that, through the coordinated use of the collection and separation / recovery components, this device can achieve fully enclosed collection and filtration of fly-off residues generated during the spraying of water-based epoxy zinc-rich primer, effectively avoiding raw material waste and environmental pollution, and significantly improving raw material utilization. The cyclone separator can quickly achieve gas-liquid separation, reducing the load on subsequent filtration.

[0012] The second beneficial effect of this invention is that the device employs a non-Newtonian fluid and elastic hollow sphere structure within the capsule. After expansion, the capsule provides uniform rigid support to the filter cloth, effectively resisting the direct impact of zinc powder particles in the coating and preventing deformation, damage, and pore blockage of the filter cloth. The elastic hollow sphere provides an elastic buffer space for the capsule, preventing excessive internal pressure from causing over-expansion and rupture, thus significantly improving the device's service life and operational stability. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 A schematic diagram of the structure of the waterborne epoxy zinc-rich primer spray residue recovery device provided by the present invention; Figure 2 The waterborne epoxy zinc-rich primer spraying residue recovery device provided by the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 A cross-sectional structural schematic diagram of the waterborne epoxy zinc-rich primer spray residue recovery device provided by the present invention. Figure 4 A schematic diagram of the plan structure of the waterborne epoxy zinc-rich primer spray residue recovery device provided by the present invention; Figure 5 A schematic diagram of the filter cloth planar structure of the waterborne epoxy zinc-rich primer spray residue recovery device provided by the present invention. Figure 6 This is a schematic cross-sectional plan view of the capsule tube structure of the waterborne epoxy zinc-rich primer spray residue recovery device provided by the present invention.

[0015] In the diagram: 1. Guide rail; 11. Slider; 12. Mounting plate; 13. Support frame; 2. Spraying assembly; 20. Controller; 21. Storage tank; 22. Pump body one; 23. Conduit; 24. Spray gun; 25. Inlet and outlet pipes; 3. Collection assembly; 31. Support plate; 32. Cyclone separator; 33. Pump body two; 34. Suction pipe; 35. Collection hood; 36. Discharge pipe; 310. Bracket; 4. Separation and recovery assembly; 41. Recovery tank; 42. Connecting pipe; 43. Collection cylinder; 44. Pump body three; 45. Guide pipe; 46. Sealing gasket; 47. Filter cloth; 48. Blend tube; 49. Elastic hollow ball; 410. Pump body four; 411. Circulation pipe; 401. Gap between mesh ribs. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-6 As shown, the present invention provides the following technical solution: Example 1: A water-based epoxy zinc-rich primer spraying residue recovery device includes a guide rail 1, a slider 11 slidably mounted on the guide rail 1, a mounting plate 12 at the top of the slider 11, a support frame 13 fixedly connected to the top of the mounting plate 12, a spraying assembly 2 mounted on the mounting plate 12, the spraying assembly 2 including a storage tank 21 mounted on the mounting plate 12, a pump body 22 at the top of the storage tank 21, a conduit 23 fixedly connected to the output end of the pump body 22, a spray gun 24 fixedly connected to one end of the conduit 23, and a controller 20 mounted on the upper part of the outer wall of the storage tank 21.

[0018] The guide rail 1 and the slider 11 slide together, which can realize flexible movement of the spraying position to meet the continuous spraying operation in different areas; the controller 20 is used to regulate the spraying pressure, flow rate and start / stop status. The guide rail 1 is equipped with an electric lead screw, a drive motor and a transmission assembly to achieve electric drive (existing technology).

[0019] In use, the spraying parameters are set by the controller 20 and the pump body 22 is started. The water-based epoxy zinc-rich primer in the storage tank 21 is transported to the spray gun 24 through the conduit 23 for spraying. According to the construction requirements, the slider 11 is pushed to move along the guide rail 1 to adjust the spraying position and coverage in real time, so as to complete the continuous and stable anti-corrosion spraying.

[0020] Example 2: The technical solution of this example, which differs from that of Example 1, includes: a collection component 3 is provided on the support frame 13, the collection component 3 includes a support plate 31 installed on the support frame 13, a cyclone separator 32 is provided through the support plate 31, a second pump body 33 is installed at the top of the cyclone separator 32, a suction pipe 34 is fixedly connected to the output end of the second pump body 33, a collection cover 35 is fixedly connected to one end of the suction pipe 34, a liquid outlet pipe 36 is provided at the bottom of the cyclone separator 32, a bracket 310 distributed on the support plate 31 is provided at the bottom of the collection cover 35, and a filter screen is provided at the collection port of the collection cover 35.

[0021] Among them, the collection hood 35 is located at the lower end of the nozzle gun 24 to form a wrapped collection, and the filter screen of the collection port pre-intercepts impurities and clumps; Cyclone separator 32 is used to quickly separate gas and liquid from spray coating residue. Mixed gas will be discharged, and impurities and liquid will be transported to liquid outlet pipe 36 and connecting pipe 42.

[0022] When in use, the pump body 33 is started to form a negative pressure airflow. The water-based epoxy zinc-rich primer residue generated during the spraying process is sucked in by the collection hood 35. After preliminary filtration by the filter screen, it is sent to the cyclone separator 32 through the suction pipe 34 to complete the separation of gas and paint. The separated liquid paint is then transported downward through the liquid outlet pipe 36 to enter the subsequent filtration and recovery process.

[0023] Example 3: The technical solution of this example, which differs from that of Example 1, includes: a separation and recycling assembly 4 is provided inside the support frame 13. The separation and recycling assembly 4 includes a recycling tank 41 mounted on the mounting plate 12. A connecting pipe 42 is provided at the top of the recycling tank 41. A collection cylinder 43 is installed at the top of the recycling tank 41. A pump body 44 is installed at the top of the collection cylinder 43. A guide pipe 45 is provided at the output end of the pump body 44. A sealing gasket 46 is provided at one end of the guide pipe 45. Filter cloth 47 is provided between the sealing gaskets 46. A capsule 48 is provided between the filter cloths 47. Several elastic hollow balls 49 are provided inside the capsule 48. The lower end of the outer wall of the recycling tank 41 The pump body 410 is installed, and the output end of the pump body 410 is provided with a circulation pipe 411. The lower end of the outer wall of the storage tank 21 is embedded with an inlet / outlet pipe 25, and the circulation pipe 411 is connected to the inlet / outlet pipe 25. The outlet pipe 36 and the connecting pipe 42 are detachably connected by a flange and bolts, respectively. The sealing gasket 46 is located between the mating surfaces of the outlet pipe 36 and the connecting pipe 42. The filter cloth 47 has filter holes and mesh rib gaps 401 between adjacent filter holes. The capsule tube 48 is correspondingly distributed inside the mesh rib gaps 401, and the capsule tube 48 does not block the filter holes of the filter cloth 47. The capsule tube 48 is connected to the guide pipe 45 and the sealing gasket 46.

[0024] The collecting cylinder 43 is used to store non-Newtonian fluids, which mainly include shear-thickening fluids and shear-thinning fluids. The collecting cylinder 43 is equipped with inlet and outlet pipes.

[0025] In use, the non-Newtonian fluid in the collection cylinder 43 is first injected into the capsule 48 through the guide pipe 45 via the pump body 44, causing the capsule 48 to expand uniformly and provide stable support for the filter cloth 47. The non-Newtonian fluid can improve the overall rigidity of the capsule 48, effectively resisting the impact of water-based epoxy zinc-rich primer residue, and providing reliable protection for the filter cloth 47. The elastic hollow ball 49 inside the capsule 48 can provide elastic buffer space for the non-Newtonian fluid, preventing the capsule 48 from over-expanding and rupturing due to excessive pressure, thereby protecting the capsule 48 and extending its service life. The coating separated by the cyclone separator 32 enters the filtration area through the outlet pipe 36 and the connecting pipe 42. After fine filtration by the filter cloth 47, it enters the recovery tank 41, and is then transported to the storage tank 21 by the pump body 410 through the circulation pipe 411, realizing the efficient recovery and reuse of water-based epoxy zinc-rich primer residue.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-based epoxy zinc-rich primer spraying residue recycling device, including a guide rail (1), a slider (11) is slidably provided on the guide rail (1), a mounting plate (12) is provided at the top of the slider (11), a support frame (13) is fixedly connected to the top of the mounting plate (12), and a spraying component (2) is provided on the mounting plate (12). Its features are, The support frame (13) is provided with a collection component (3), the collection component (3) includes a support plate (31) installed on the support frame (13), a cyclone separator (32) is provided through the support plate (31), a second pump body (33) is installed at the top of the cyclone separator (32), a suction pipe (34) is fixedly connected to the output end of the second pump body (33), a collection cover (35) is fixedly connected to one end of the suction pipe (34), and a liquid outlet pipe (36) is provided at the bottom of the cyclone separator (32). The support frame (13) is provided with a separation and recycling assembly (4) inside. The separation and recycling assembly (4) includes a recycling tank (41) installed on the mounting plate (12). The top of the recycling tank (41) is provided with a connecting pipe (42). The top of the recycling tank (41) is provided with a collection cylinder (43). The top of the collection cylinder (43) is provided with a pump body three (44). The output end of the pump body three (44) is provided with a guide pipe (45). One end of the guide pipe (45) is provided with a sealing gasket (46). Filter cloth (47) is provided between the sealing gaskets (46). A capsule tube (48) is provided between the filter cloths (47). Several elastic hollow balls (49) are provided inside the capsule tube (48). The lower end of the outer wall of the recycling tank (41) is provided with a pump body four (410). The output end of the pump body four (410) is provided with a circulation pipe (411).

2. The waterborne epoxy zinc-rich primer spraying residue recovery device according to claim 1, characterized in that: The spraying assembly (2) includes a storage tank (21) mounted on a mounting plate (12). A pump body (22) is provided at the top of the storage tank (21). A conduit (23) is fixedly connected to the output end of the pump body (22). A spray gun (24) is fixedly connected to one end of the conduit (23). A controller (20) is installed on the upper part of the outer wall of the storage tank (21).

3. The waterborne epoxy zinc-rich primer spraying residue recovery device according to claim 2, characterized in that: The storage tank (21) has an inlet / outlet pipe (25) embedded at the lower end of its outer wall, and the circulation pipe (411) is connected to the inlet / outlet pipe (25).

4. The waterborne epoxy zinc-rich primer spraying residue recovery device according to claim 1, characterized in that: The bottom of the collection cover (35) is provided with a bracket (310) distributed on the support plate (31), and the collection port of the collection cover (35) is provided with a filter screen.

5. The waterborne epoxy zinc-rich primer spraying residue recovery device according to claim 1, characterized in that: The outlet pipe (36) and the connecting pipe (42) are detachably connected by a flange and bolts, and the sealing gasket (46) is located between the mating surfaces of the outlet pipe (36) and the connecting pipe (42).

6. The waterborne epoxy zinc-rich primer spraying residue recovery device according to claim 1, characterized in that: The filter cloth (47) has filter holes and mesh rib gaps (401) between adjacent filter holes. The capsule (48) is distributed inside the mesh rib gaps (401) and does not block the filter holes of the filter cloth (47).

7. The waterborne epoxy zinc-rich primer spraying residue recovery device according to claim 1, characterized in that: The bladder tube (48) is connected to the guide tube (45) and the sealing gasket (46).

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