Sand cleaning and recycling device of sand blasting machine
By using the sand cleaning and recycling device of the sandblasting machine, the sand particles and wastewater are separated by inclined guide pipes and filter screens. Combined with the automated cleaning function of scraper and connecting plate, the problem of inconvenient sand particle recycling of sandblasting machine is solved, realizing efficient and convenient sand particle reuse and reducing equipment maintenance and labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CHLOE CUTTING TOOLS CO LTD
- Filing Date
- 2025-02-13
- Publication Date
- 2026-04-28
AI Technical Summary
Existing sandblasting machines lack effective mechanisms for sand particle recycling and reuse after use, resulting in resource waste, high equipment maintenance costs, cumbersome operation, and easy clogging.
A sand cleaning and recycling device for a sandblasting machine was designed, including components such as a support frame, a cleaning tank, a filter frame, a water pump, a conduit, and a collection box. The device separates sand particles from wastewater through an inclined conduit and a filter screen, and uses a scraper and a connecting plate to achieve automated cleaning and convenient disassembly. Combined with a dryer, it ensures that the sand particles are dry and improves recycling efficiency.
It achieves efficient and clean recycling of sand particles, reduces production costs, reduces environmental pollution, simplifies operation procedures, extends equipment lifespan, and improves production efficiency and equipment usability.
Smart Images

Figure CN224169577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sandblasting machine technology, and more specifically, to a sand particle cleaning and recycling device for a sandblasting machine. Background Technology
[0002] Sandblasting machines use compressed air to propel abrasive particles (such as silica sand and steel shot) at high speed onto the workpiece surface through a spray gun. The high-speed abrasive particles impact the workpiece, cutting and refining its surface to remove impurities (such as scale, rust, and oil), roughen the surface to enhance coating adhesion, and improve surface stress. In current industrial production, sandblasting machines are widely used in metal surface treatment, rust removal of mechanical parts, and surface processing of building materials. However, traditional sandblasting machines face several unresolved issues regarding abrasive particle handling.
[0003] Existing equipment lacks an effective mechanism for recycling and reusing sand particles after use. A large amount of sand particles are directly discarded as waste, resulting in serious resource waste. Filter components are easily clogged by sand particles and need to be replaced frequently, which increases equipment maintenance costs and downtime, affecting production efficiency. Moreover, the process of collecting and cleaning sand particles is cumbersome and lacks convenience.
[0004] This invention can efficiently clean and recycle sand particles, reduce production costs, reduce environmental pollution, and is easy to operate and maintain. Utility Model Content
[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a sand particle cleaning and recycling device for a sandblasting machine.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a sand cleaning and recycling device for a sandblasting machine, comprising: a support frame, a cleaning tank at the upper end of the support frame, a filter frame at the upper end of the cleaning tank, a water pump at one side of the cleaning tank, a conduit connected to the output end of the water pump, and a collection box connected to one side of the filter frame.
[0007] A further preferred embodiment: the other end of the water pump is embedded inside the cleaning tank, and the cleaning tank is embedded with a drain pipe. The conduit is installed on the upper side of one side of the filter frame and is inclined.
[0008] A further preferred embodiment: a filter screen is provided inside the filter frame, the filter screen is inclined, the two ends of the filter frame are interconnected, and a connecting plate is provided at one end of the filter frame, the connecting plate being inclined downward.
[0009] A further preferred embodiment: a dryer is provided at the upper end of the filter frame, and the dryer is located at the discharge port of the filter frame.
[0010] A further preferred embodiment: a feed pipe is embedded at one end of the collection box, the connecting plate can be embedded inside the feed pipe, and the connecting plate and the feed pipe are detachably connected.
[0011] A further preferred embodiment: a groove is provided at one end of the filter frame, a hydraulic rod is embedded inside the groove, a push plate is provided at the output end of the hydraulic rod, and the two ends of the push plate are in contact with the two ends of the inner wall of the filter frame.
[0012] A further preferred embodiment: a scraper is embedded inside the push plate, the bottom of the scraper is made of brush material, the bottom of the scraper contacts the filter screen, multiple springs are installed at the upper end of the scraper, the other end of the springs is connected to the inner wall of the push plate, and the inside of the push plate is hollow.
[0013] Beneficial effects:
[0014] 1. Equipped with a scraper, the bottom of which is made of brush material and makes close contact with the filter screen, the scraper effectively cleans the residual sand particles on the filter screen during the movement of the scraper, preventing the sand particles from clogging the filter screen pores. This greatly improves the filtration effect, ensures efficient separation of sewage and sand particles, improves the cleanliness of the recovered sand particles, and ensures the smooth operation of the sandblasting machine. At the same time, the clever cooperation between the scraper and the spring allows it to flexibly adapt to the undulations of the filter screen. When encountering greater resistance, the spring can be compressed to avoid damage to the filter screen due to hard scraping, thus extending the service life of the filter screen and reducing equipment maintenance costs. Moreover, the continuous cleaning of the filter screen by the scraper reduces the frequency of manual cleaning of the filter screen, reducing labor costs. Through automated cleaning operations, the scraper improves the continuity and stability of the work, providing a strong guarantee for the efficient operation of sand particle cleaning and recovery in the sandblasting machine.
[0015] 2. With the addition of a connecting plate, the detachable feature of the sand collection box provides a significant advantage during the sand recovery process. When sand accumulates in the collection box and needs cleaning, the connecting plate can be easily and quickly removed from the feed pipe, greatly simplifying the cleaning process, saving manpower and time costs, and improving cleaning efficiency. Simultaneously, the connecting plate, installed between the filter frame outlet and the collection box feed pipe, acts as a transitional connector. Its downward-sloping design guides the sand to slide smoothly into the collection box, ensuring the continuity and stability of the sand recovery process and preventing blockages or scattering of sand during transfer. This ensures the entire recovery operation is efficient and orderly. Furthermore, this easy-to-disassemble and install connecting plate makes maintenance and cleaning more convenient, improving the overall practicality and flexibility of the equipment and adapting to the needs of sand recovery in different working scenarios.
[0016] 3. In summary, this sand cleaning and recovery device for a sandblasting machine, with its scraper and connecting plate, utilizes a scraper with a brush at the bottom and a spring to efficiently clean the filter screen, prevent sand clogging, improve filtration efficiency, extend filter life, reduce maintenance and labor costs, and ensure continuous and stable operation. The detachable connecting plate facilitates cleaning the sand collection box, saving manpower and time. Its inclined design guides the sand particles smoothly into the box, ensuring a smooth and stable recovery process. Together, these features improve the efficiency of sand cleaning and recovery, enhance the practicality and flexibility of the equipment, and promote the efficient operation of sand blasting machine sand processing. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the collection box and connecting plate structure of this utility model.
[0019] Figure 3 This is a schematic diagram of the groove position structure of this utility model.
[0020] Figure 4 This is a schematic diagram of the scraper and spring structure of this utility model.
[0021] Figure 1-4 Components: 1. Support frame; 2. Washing tank; 3. Filter frame; 301. Filter screen; 302. Connecting plate; 303. Groove; 304. Hydraulic rod; 305. Push plate; 306. Scraper; 307. Spring; 4. Water pump; 5. Conduit; 6. Collection box; 601. Feed pipe; 7. Dryer. Detailed Implementation
[0022] The following will refer to the appendix in the embodiments of this utility model. Figures 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.
[0023] Please see Figure 1-4 In this embodiment of the utility model, a sand cleaning and recycling device for a sandblasting machine includes: a support 1, a cleaning tank 2 is provided at the upper end of the support 1, a filter frame 3 is provided at the upper end of the cleaning tank 2, a water pump 4 is provided on one side of the cleaning tank 2, a conduit 5 is connected to the output end of the water pump 4, and a collection box 6 is connected to one side of the filter frame 3; the other end of the water pump 4 is embedded inside the cleaning tank 2, and a drain pipe is embedded in the cleaning tank 2; the conduit 5 is installed on the upper end of one side of the filter frame 3, and the conduit 5 is inclined; a feed pipe 601 is embedded at one end of the collection box 6, and a connecting plate 302 can be embedded inside the feed pipe 601, and the connecting plate 302 and the feed pipe 601 are detachably connected;
[0024] After the sandblasting machine finishes its work, the wastewater containing sand particles flows into the cleaning tank 2. At this time, the water pump 4 starts, drawing the wastewater from the bottom of the cleaning tank 2 and transporting it to the filter frame 3 through the conduit 5. Because the conduit 5 is inclined, the wastewater and sand particles can flow more smoothly into the filter frame 3. In the filter frame 3, the sand particles are intercepted, while the wastewater flows through the filter frame 3 into the bottom of the cleaning tank 2. The filtered sand particles slide down the filter frame 3 and enter the collection box 6 through the feed pipe 601. When it is necessary to clean the collection box 6, the connecting plate 302 can be removed from the feed pipe 601. The system allows for convenient and quick emptying of sand particles. Through the coordinated operation of the washing tank 2, filter frame 3, and water pump 4, effective separation of sand particles and wastewater is achieved, improving the cleanliness and recycling rate of sand particles and reducing production costs. The detachable connecting plate 302 facilitates the cleaning of sand particles in the collection box 6. The inclined setting of the conduit 5 and the reasonable layout of each component make the entire recycling process simple to operate and easy to maintain. Recycling and reusing sand particles reduces the purchase of new sand particles, reduces resource waste, and avoids the pollution caused by the direct discharge of wastewater containing sand particles into the environment.
[0025] In this embodiment of the present invention, a filter screen 301 is provided inside the filter frame 3. The filter screen 301 is inclined. The two ends of the filter frame 3 are interconnected. A connecting plate 302 is provided at one end of the filter frame 3. The connecting plate 302 is inclined downward. A dryer 7 is provided at the upper end of the filter frame 3. The dryer 7 is located at the discharge port of the filter frame 3.
[0026] Because the two ends of the filter frame 3 are interconnected, the intercepted sand particles effectively prevent water from entering the collection box 6 by following the inclined filter screen 301. The downwardly inclined connecting plate 302 allows the fine sand to slide smoothly to the discharge port of the filter frame 3. At this time, the dryer 7 located at the discharge port starts to work, drying the sand particles and removing residual moisture. The dried sand particles enter the collection box 6 through the feed pipe 601. When it is necessary to clean the collection box 6, the connecting plate 302 can be removed from the feed pipe 601, and the sand particles can be easily poured out. The inclined filter screen 301 increases the filtration area, improves the sand particle interception efficiency, makes the sand particles and sewage more thoroughly separated, reduces manual intervention, further improves the recycling efficiency, and reduces production costs. The setting of the dryer 7 dries the recycled sand particles, ensuring that the sand particles are dry and meet the requirements for reuse, avoiding the impact of damp sand particles on the subsequent working effect of the sandblasting machine, and expanding the applicable scope of recycled sand particles.
[0027] In this embodiment of the utility model, a groove 303 is provided at one end of the filter frame 3, and a hydraulic rod 304 is embedded inside the groove 303. A push plate 305 is provided at the output end of the hydraulic rod 304. Both ends of the push plate 305 are in contact with the two ends of the inner wall of the filter frame 3. A scraper 306 is embedded inside the push plate 305. The bottom of the scraper 306 is made of brush material and is in contact with the filter screen 301. Multiple springs 307 are installed on the upper end of the scraper 306. The other end of the springs 307 is connected to the inner wall of the push plate 305. The inside of the push plate 305 is hollow.
[0028] During the sand cleaning and recovery process of the sandblasting machine, when the sand particles are intercepted by the inclined filter screen 301 and slide down to a certain extent, the hydraulic rod 304 in the groove 303 starts to work. The hydraulic rod 304 extends and pushes the push plate 305 to move along the inner wall of the filter frame 3. Since the two ends of the push plate 305 are in contact with the two ends of the inner wall of the filter frame 3, it can ensure that the push plate 305 advances smoothly, pushing the sand particles accumulated on the filter screen 301 towards the discharge port of the filter frame 3. During the movement of the push plate 305, the internal components of the push plate 305 are embedded... The scraper 306 plays its role. The bottom of the scraper 306 is made of brush material and contacts the filter screen 301. As the pusher plate 305 moves forward, the scraper 306, under the action of the spring 307, tightly adheres to the filter screen 301. When sand particles are pushed by the pusher plate 305, the scraper 306 can clean the residual sand particles on the filter screen 301, preventing sand particles from clogging the pores of the filter screen 301. When encountering greater resistance, the spring 307 can be compressed, allowing the scraper 306 to flexibly adapt to the undulations of the filter screen 301, ensuring effective cleaning. After the sand particles are pushed and the filter screen 301 is cleaned, the hydraulic rod 304 retracts and the push plate 305 returns to its initial position, ready for the next operation. Driven by the hydraulic rod 304, the push plate 305 actively pushes the sand particles, accelerating their movement towards the discharge port. Compared to relying solely on gravity to slide down, this significantly shortens the residence time of the sand particles in the filter frame 3, improving overall recycling efficiency. The scraper 306 continuously cleans the filter screen 301, effectively preventing sand particle residue and clogging, ensuring that the filter screen 301 always maintains good filtration performance, guaranteeing efficient separation of wastewater and sand particles, thereby improving the quality of clean recycling, reducing sand particle clogging and wear on the filter screen 301, reducing the frequency of replacement due to filter screen damage, extending the service life of the filter frame 3 and the entire recycling device, and reducing equipment maintenance costs. The coordinated work of the hydraulic rod 304, push plate 305, and scraper 306 realizes automated operation of sand particle pushing and filter screen 301 cleaning, reducing manual cleaning and intervention, and improving the continuity and stability of the work.
[0029] Working Principle: After the sandblasting machine finishes its operation, wastewater containing sand particles flows into the cleaning tank 2 at the top of the support frame 1. The water pump 4 on one side of the cleaning tank 2 then starts, with one end extending to the bottom of the cleaning tank 2. The wastewater is then pumped out and transported to the filter frame 3 through an inclined conduit 5. The inclined conduit 5 allows the wastewater and sand particles to flow more smoothly, improving transport efficiency. Inside the filter frame 3, the inclined filter screen 301 plays a crucial role. Due to its inclination, the filtration area is increased, effectively intercepting sand particles. The wastewater flows back to the bottom of the cleaning tank 2 through the filter screen 301, achieving initial separation of sand particles and wastewater. The intercepted sand particles slide down the inclined filter screen 301 and the downwardly inclined connecting plate 302 to the discharge port of the filter frame 3. At this time, the dryer 7 located at the discharge port starts working to dry the sand particles, removing residual moisture and ensuring the sand particles are dry enough for reuse. The dried sand particles are then... The feed pipe 601 enters the collection box 6. When the collection box 6 needs to be cleaned, the connecting plate 302 embedded in the feed pipe 601 is removed, and the sand can be easily poured out. During the sand cleaning and recycling process, when the sand accumulates to a certain extent on the filter screen 301, the hydraulic rod 304 in the groove 303 at one end of the filter frame 3 starts to operate. The hydraulic rod 304 extends and pushes the push plate 305, which is in contact with the inner wall of the filter frame 3 at both ends, to move smoothly, pushing the accumulated sand towards the discharge port. When the push plate 305 moves, the scraper 306 embedded inside plays its role. The bottom of the scraper 306 is made of brush material and is in contact with the filter screen 301. Under the action of the spring 307, it fits tightly against the filter screen 301, which can clean the residual sand and prevent clogging. When encountering resistance, the spring 307 can be compressed to flexibly adapt to the rise and fall of the filter screen 301. After the pushing and cleaning are completed, the hydraulic rod 304 retracts and the push plate 305 resets, waiting for the next operation.
Claims
1. A sand particle cleaning and recovery device for a sandblasting machine, comprising: The bracket (1) is characterized in that: a cleaning pool (2) is provided at the upper end of the bracket (1), a filter frame (3) is provided at the upper end of the cleaning pool (2), a water pump (4) is provided on one side of the cleaning pool (2), a conduit (5) is connected to the output end of the water pump (4), and a collection box (6) is connected to one side of the filter frame (3).
2. The sand particle cleaning and recovery device for a sandblasting machine according to claim 1, characterized in that: The other end of the water pump (4) is embedded inside the cleaning tank (2), and the cleaning tank (2) is equipped with a drain pipe. The conduit (5) is installed on the upper side of the filter frame (3), and the conduit (5) is inclined.
3. The sand particle cleaning and recovery device for a sandblasting machine according to claim 1, characterized in that: The filter frame (3) is provided with a filter screen (301) inside. The filter screen (301) is inclined. The two ends of the filter frame (3) are interconnected. One end of the filter frame (3) is provided with a connecting plate (302) which is inclined downward.
4. The sand particle cleaning and recovery device for a sandblasting machine according to claim 1, characterized in that: A dryer (7) is provided at the upper end of the filter frame (3), and the dryer (7) is located at the discharge port of the filter frame (3).
5. The sand particle cleaning and recovery device for a sandblasting machine according to claim 3, characterized in that: The collection box (6) has a feed pipe (601) embedded at one end. The connecting plate (302) can be embedded inside the feed pipe (601), and the connecting plate (302) and the feed pipe (601) are detachably connected.
6. The sand particle cleaning and recovery device for a sandblasting machine according to claim 1, characterized in that: The filter frame (3) has a groove (303) at one end, and a hydraulic rod (304) is embedded inside the groove (303). A push plate (305) is provided at the output end of the hydraulic rod (304), and the two ends of the push plate (305) are in contact with the two ends of the inner wall of the filter frame (3).
7. The sand particle cleaning and recovery device for a sandblasting machine according to claim 6, characterized in that: A scraper (306) is embedded inside the push plate (305). The bottom of the scraper (306) is made of brush material and the bottom of the scraper (306) is in contact with the filter screen (301). Multiple springs (307) are installed on the upper end of the scraper (306). The other end of the springs (307) is connected to the inner wall of the push plate (305). The push plate (305) is hollow inside.