Dust removal device for sand blasting machine

Abstract

The utility model provides a dust removal device for a sand blasting machine, which relates to the field of sand blasting machines and comprises a sand blasting box, the lower surface of the sand blasting box is fixedly communicated with a material guide funnel, the lower surface of the material guide funnel is fixedly communicated with a discharge valve, and the lower end face of the discharge valve is fixedly communicated with a recovery box, an exhaust pipe and a first filter screen, the exhaust pipe is fixedly communicated with the side wall of the material guide funnel, the inner wall of the exhaust pipe is fixedly connected with an exhaust fan, the first filter screen is fixedly arranged in the side wall of the material guide funnel, and the first filter screen is located at the top end of the exhaust pipe; according to the scheme, the exhaust fan is started to discharge air filtered by the first filter screen in the sand blasting box into the water tank through the exhaust pipe, and gravel dust in the air can be further filtered through liquid in the water tank, so that the purification effect on the discharged air can be enhanced; the situation that gravel dust particles escape to the surrounding environment along with the exhaust airflow is prevented, and then the health guarantee of operators can be improved.

Description

Technical Field

[0001] This utility model relates to the field of sandblasting machines, and in particular to a dust removal device for sandblasting machines. Background Technology

[0002] A sandblasting machine mainly consists of a sandblasting tank, nozzles, a compressed air system, an abrasive recovery system, a dust removal system, and a control system. It is a device that uses a high-speed abrasive stream to clean and treat the surface of a workpiece. Its main functions include removing surface oxide layers, burrs, and dirt, increasing surface roughness, and thus enhancing coating adhesion. Sandblasting machines offer advantages such as high cleaning efficiency, uniform surface treatment, and applicability to various materials. However, sandblasting operations generate a large amount of fine dust, abrasive residue, and metal particles. These pollutants can degrade the quality of the working environment, therefore, dust removal devices are necessary for dust control.

[0003] In related technologies, sandblasting machines primarily rely on dust removal devices to reduce dust emissions and improve workplace cleanliness and safety during operation. These devices typically include dust collection hoods, filters, fans, and dust collection boxes. Dust generated during sandblasting is drawn into the dust collection hood by the fan and filtered through the filter. The filtered dust is collected inside the dust collection box for recycling. However, the exhaust air may still contain some dust particles, which may escape into the surrounding environment with the exhaust airflow, posing a potential health hazard to operators.

[0004] Therefore, it is necessary to provide a dust removal device for sandblasting machines to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the technical problem that the filtered exhaust air may still contain some dust particles, which may escape into the surrounding environment with the exhaust airflow and thus pose a potential health hazard to operators, this utility model provides a dust removal device for sandblasting machines.

[0006] This utility model provides a dust removal device for a sandblasting machine, comprising: a sandblasting box, a material guide funnel fixedly connected to the lower surface of the sandblasting box, a discharge valve fixedly connected to the lower surface of the material guide funnel, a recovery box fixedly connected to the lower end face of the discharge valve, an exhaust pipe, and a first filter screen. The exhaust pipe is fixedly connected to the side wall of the material guide funnel, and a blower is fixedly connected to the inner wall of the exhaust pipe. The first filter screen is fixedly disposed inside the side wall of the material guide funnel and is located at the top of the exhaust pipe. A water tank is disposed on one side of the recovery box, and the bottom end of the exhaust pipe is located inside the water tank.

[0007] Preferably, the sandblasting box includes a rectangular box body fixedly connected to the upper surface of the material guide funnel, a protective door is movably connected to one side of the rectangular box body, an air inlet is opened at the top of the rectangular box body, and a second filter screen is provided inside the air inlet.

[0008] Preferably, the exhaust pipe includes a connecting pipe fixedly connected to the side wall of the material guide funnel, a telescopic pipe fixedly connected to the end of the connecting pipe away from the material guide funnel, and an insertion pipe fixedly connected to the lower end face of the telescopic pipe, the insertion pipe being located inside the water tank.

[0009] Preferably, a motor is fixedly connected to one side of the recycling bin, and a shaft is fixedly connected to the output end of the motor through the recycling bin. The end of the shaft away from the motor is rotatably connected to the inner wall of the recycling bin, and an electromagnet plate is fixedly connected to the outer wall of the shaft.

[0010] Preferably, a rectangular mounting frame is fixedly connected to the inner wall of the water tank, and a perforated plate is bolted to the upper surface of the rectangular mounting frame. An insertion hole is provided on the perforated plate, and the insertion tube is located inside the insertion hole.

[0011] Preferably, a sealing ring is provided inside the insertion hole, and the outer wall of the insertion tube is in contact with the inner wall of the sealing ring.

[0012] Compared with related technologies, the dust removal device for sandblasting machines provided by this utility model has the following beneficial effects:

[0013] 1. This dust removal device for sandblasting machines enhances the purification effect of exhaust air, preventing sand and dust particles from escaping into the surrounding environment with the exhaust airflow. The sandblasting box is used for sandblasting workpieces. Sand and dust particles from the sandblasting process fall into the guide funnel. Opening the discharge valve allows the sand and dust particles in the guide funnel to be transported into the recovery box for collection and storage. Starting the exhaust fan draws air from inside the sandblasting box to the outside, allowing air circulation and preventing sand and dust particles from adhering to the workpiece surface. A first filter screen filters the sand and dust particles in the drawn air, and the filtered particles slide along the first filter screen into the guide funnel. The filtered air is then discharged into a water tank through an exhaust pipe. The liquid inside the water tank further filters the sand and dust particles in the air, thus enhancing the purification effect of the exhaust air and preventing sand and dust particles from escaping into the surrounding environment with the exhaust airflow, thereby improving the health protection of operators.

[0014] 2. The dust removal device for the sandblasting machine has a protective door that can be opened and closed as needed, allowing operators to place workpieces inside the rectangular box for processing. When the exhaust fan is started, the air inlet facilitates airflow inside the rectangular box. The second filter screen filters the air entering the rectangular box through the air inlet. When the electromagnet plate is energized, it generates a certain magnetic force, which adsorbs and collects iron filings from the sand and dust collected in the recovery box. Starting the motor controls the rotation of the electromagnet plate through the shaft, which improves the adsorption effect on iron filings.

[0015] 3. This dust removal device for sandblasting machines allows air to enter the water tank through a connecting pipe, a telescopic pipe, and an insert pipe when the exhaust fan is started. The telescopic pipe can be adjusted to extend or retract as needed, facilitating the movement and cleaning of the water tank. The rectangular mounting frame restricts the installation position of the perforated plate. The insert pipe can be inserted into the perforated plate through the insertion hole, allowing the air discharged through the insert pipe to enter below the perforated plate. The perforated plate decomposes the gas discharged through the insert pipe into small bubbles, thereby further improving the purification effect of the liquid in the water tank on the discharged air. When the insert pipe is inserted into the insertion hole, the sealing ring improves the sealing between the insert pipe and the insertion hole. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the dust removal device for a sandblasting machine provided by this utility model;

[0017] Figure 2 A cross-sectional structural schematic diagram of the dust removal device for a sandblasting machine provided by this utility model;

[0018] Figure 3 The dust removal device for sandblasting machines provided by this utility model Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 4 The dust removal device for sandblasting machines provided by this utility model Figure 2 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] The following are the labels in the diagram: 1. Sandblasting box; 101. Rectangular box body; 102. Protective door; 103. Air inlet; 104. Second filter screen; 2. Material guide funnel; 3. Discharge valve; 4. Recovery box; 5. Exhaust pipe; 501. Connecting pipe; 502. Telescopic pipe; 503. Insert pipe; 6. Exhaust fan; 7. First filter screen; 8. Water tank; 9. Rectangular mounting frame; 10. Perforated plate; 11. Insertion hole; 12. Sealing ring; 13. Motor; 14. Shaft; 15. Electromagnet plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please refer to the following: Figures 1 to 4 A dust removal device for a sandblasting machine includes: a sandblasting box 1, a material guide funnel 2 fixedly connected to the lower surface of the sandblasting box 1, a discharge valve 3 fixedly connected to the lower surface of the material guide funnel 2, a recovery box 4 fixedly connected to the lower end face of the discharge valve 3, an exhaust pipe 5, and a first filter screen 7. The exhaust pipe 5 is fixedly connected to the side wall of the material guide funnel 2, and an exhaust fan 6 is fixedly connected to the inner wall of the exhaust pipe 5. The first filter screen 7 is fixedly installed inside the side wall of the material guide funnel 2 and is located at the top of the exhaust pipe 5. A water tank 8 is installed on one side of the recovery box 4, and the bottom end of the exhaust pipe 5 is located inside the water tank 8.

[0023] In the specific implementation process, the sandblasting box 1 in the dust removal device for the sandblasting machine is used to sandblast the workpiece. The sand and dust during sandblasting can fall into the guide funnel 2. By opening the discharge valve 3, the sand and dust in the guide funnel 2 can be transported into the recovery box 4. The recovery box 4 can collect and store the sand and dust for recycling. Furthermore, an exhaust pipe 5 is fixedly connected to the side wall of the guide funnel 2, and an exhaust fan 6 is fixedly installed on the inner wall of the exhaust pipe 5. A first filter screen 7 is installed at the connection between the guide funnel 2 and the exhaust pipe 5. Specifically, starting the exhaust fan 6 can draw the air inside the sandblasting box 1 to the outside, so that the air inside the sandblasting box 1 is drawn out. The system allows air circulation to prevent sand and dust from adhering to the workpiece surface. When air is drawn outward, the first filter 7 filters the sand and dust in the air. The filtered sand and dust slide along the first filter 7 into the guide funnel 2. The filtered air is then discharged into the water tank 8 through the exhaust pipe 5. The liquid inside the water tank 8 further filters the sand and dust in the air, thereby enhancing the purification effect on the exhaust air and preventing sand and dust particles from escaping into the surrounding environment with the exhaust airflow. This improves the health protection of operators and makes the application more practical.

[0024] refer to Figure 1 and Figure 2 As shown, the sandblasting box 1 includes a rectangular box 101 fixedly connected to the upper surface of the material guide funnel 2. A protective door 102 is movably connected to one side of the rectangular box 101. An air inlet 103 is opened on the top of the rectangular box 101. A second filter screen 104 is provided inside the air inlet 103.

[0025] In the specific implementation process, the protective door 102 can be opened and closed as needed, so that the operator can place the workpiece into the rectangular box 101 for processing. When the exhaust fan 6 is started, the air inlet 103 can facilitate the air circulation inside the rectangular box 101. The second filter screen 104 can filter the air entering the rectangular box 101 through the air inlet 103 to a certain extent, so as to prevent external dust and other impurities from entering the rectangular box 101 as much as possible.

[0026] refer to Figure 1 , Figure 2 and Figure 3 As shown, the exhaust pipe 5 includes a connecting pipe 501 fixedly connected to the side wall of the material guide funnel 2. The end of the connecting pipe 501 away from the material guide funnel 2 is fixedly connected to a telescopic pipe 502. The lower end face of the telescopic pipe 502 is fixedly connected to an insertion pipe 503, which is located inside the water tank 8.

[0027] In the specific implementation process, the exhaust fan 6 is fixedly installed inside the connecting pipe 501. When the exhaust fan 6 is started, air can enter the water tank 8 through the connecting pipe 501, the telescopic pipe 502 and the insertion pipe 503. The telescopic pipe 502 can be extended and retracted as needed, which makes it convenient for personnel to move and clean the water tank 8.

[0028] refer to Figure 1 and Figure 2 As shown, a motor 13 is fixedly connected to one side of the recycling bin 4. The output end of the motor 13 passes through the recycling bin 4 and is fixedly connected to a shaft 14. The end of the shaft 14 away from the motor 13 is rotatably connected to the inner wall of the recycling bin 4. An electromagnet plate 15 is fixedly connected to the outer wall of the shaft 14.

[0029] In the specific implementation process, when the electromagnet plate 15 is energized, a certain magnetic force can be generated, so that the electromagnet plate 15 can adsorb and collect the iron filings inside the sand and dust collected in the recycling box 4. The motor 13 can control the electromagnet plate 15 to rotate through the shaft 14. The rotation of the electromagnet plate 15 can improve the adsorption effect of the iron filings.

[0030] refer to Figure 2 and Figure 4 As shown, a rectangular mounting frame 9 is fixedly connected to the inner wall of the water tank 8. A perforated plate 10 is bolted to the upper surface of the rectangular mounting frame 9. An insertion hole 11 is provided on the perforated plate 10, and the insertion tube 503 is located inside the insertion hole 11.

[0031] In the specific implementation process, the rectangular mounting frame 9 can restrict the installation position of the perforated plate 10. The insertion hole 11 can be used to insert the insertion tube 503 into the perforated plate 10, so that the air discharged through the insertion tube 503 can enter the bottom of the perforated plate 10. Small holes are evenly opened on the perforated plate 10. The perforated plate 10 can decompose the gas discharged through the insertion tube 503 into small bubbles, thereby further improving the purification effect of the liquid in the water tank 8 on the discharged air.

[0032] refer to Figure 2 and Figure 4 As shown, a sealing ring 12 is provided inside the insertion hole 11, and the outer wall of the insertion tube 503 is in contact with the inner wall of the sealing ring 12.

[0033] In the specific implementation process, when the insertion tube 503 is inserted into the insertion hole 11, the sealing ring 12 can increase the friction between the insertion tube 503 and the insertion tube 503, which can play a certain anti-slip effect and improve the sealing between the insertion tube 503 and the insertion hole 11.

[0034] The working principle of the dust removal device for sandblasting machines provided by this utility model is as follows:

[0035] In use, the workpiece is placed inside the sandblasting box 1 for sandblasting. The sand and dust generated during sandblasting fall into the guide funnel 2. The discharge valve 3 is opened to transport the sand and dust from the guide funnel 2 into the collection box 4 for collection and storage, facilitating recycling. The exhaust pipe 5 is fixedly connected to the side wall of the guide funnel 2. A first filter screen 7 is installed at the connection between the guide funnel 2 and the exhaust pipe 5. An exhaust fan 6 is installed inside the exhaust pipe 5. Activating the exhaust fan 6 draws air from inside the sandblasting box 1 to the outside, allowing air circulation and preventing sand and dust from adhering to the workpiece surface. As air is drawn out, the first filter screen 7 filters out some of the sand and dust in the air. The filtered sand and dust can slide along the first filter screen 7 into the guide funnel 2. The filtered air can be discharged into the water tank 8 through the exhaust pipe 5. The liquid inside the water tank 8 can further filter the sand and dust in the air. The perforated plate 10 is installed in the water tank 8 through the rectangular mounting frame 9, and the bottom end of the exhaust pipe 5 is inserted into the perforated plate 10. The perforated plate 10 can decompose the gas discharged from the exhaust pipe 5 into small bubbles, thereby further improving the purification effect of the liquid in the water tank 8 on the discharged air, preventing sand and dust particles from escaping into the surrounding environment with the exhaust airflow, thereby improving the health protection of operators and making this application more suitable for practical use.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dust removal device for a sandblasting machine, characterized in that, include: A sandblasting box (1) is fixedly connected to a material guide funnel (2) on its lower surface. A discharge valve (3) is fixedly connected to the lower surface of the material guide funnel (2). A recycling box (4) is fixedly connected to the lower end face of the discharge valve (3). An exhaust pipe (5) and a first filter screen (7), wherein the exhaust pipe (5) is fixedly connected to the side wall of the material guide funnel (2), and an exhaust fan (6) is fixedly connected to the inner wall of the exhaust pipe (5); the first filter screen (7) is fixedly installed inside the side wall of the material guide funnel (2), and the first filter screen (7) is located at the top of the exhaust pipe (5); and A water tank (8) is located on one side of the recycling bin (4), and the bottom end of the exhaust pipe (5) is located inside the water tank (8).

2. The dust removal device for a sandblasting machine according to claim 1, characterized in that, The sandblasting box (1) includes a rectangular box (101) fixedly connected to the upper surface of the material guide funnel (2). A protective door (102) is movably connected to one side of the rectangular box (101). An air inlet (103) is opened on the top of the rectangular box (101). A second filter screen (104) is provided inside the air inlet (103).

3. The dust removal device for a sandblasting machine according to claim 1, characterized in that, The exhaust pipe (5) includes a connecting pipe (501) fixedly connected to the side wall of the material guide funnel (2). The end of the connecting pipe (501) away from the material guide funnel (2) is fixedly connected to a telescopic pipe (502). The lower end face of the telescopic pipe (502) is fixedly connected to an insertion pipe (503). The insertion pipe (503) is located inside the water tank (8).

4. The dust removal device for a sandblasting machine according to claim 1, characterized in that, A motor (13) is fixedly connected to one side of the recycling bin (4). The output end of the motor (13) is fixedly connected to a shaft (14) through the recycling bin (4). The end of the shaft (14) away from the motor (13) is rotatably connected to the inner wall of the recycling bin (4). An electromagnet plate (15) is fixedly connected to the outer wall of the shaft (14).

5. The dust removal device for a sandblasting machine according to claim 3, characterized in that, A rectangular mounting frame (9) is fixedly connected to the inner wall of the water tank (8). A perforated plate (10) is bolted to the upper surface of the rectangular mounting frame (9). An insertion hole (11) is provided on the perforated plate (10), and the insertion tube (503) is located inside the insertion hole (11).

6. The dust removal device for a sandblasting machine according to claim 5, characterized in that, A sealing ring (12) is provided inside the insertion hole (11), and the outer wall of the insertion tube (503) is in contact with the inner wall of the sealing ring (12).

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