Safety device for preventing dust explosion

Abstract

The utility model relates to the technical field of explosion prevention and dust removal, and discloses a safety device for preventing dust explosion, which comprises a moving trolley, the upper surface of the moving trolley is fixedly connected with a fixing frame, the inner wall of the fixing frame is slidably connected with a sliding block, and the outer wall of the sliding block is fixedly connected with a supporting plate. The upper surface of the supporting plate is fixedly connected with a flow dividing block, the outer wall of the flow dividing block is fixedly connected with a fixing pipe, the inner wall of the fixing pipe is slidably connected with a suction nozzle, the upper surface of the moving trolley is fixedly connected with a material suction bin, and the upper surface of the material suction bin is fixedly connected with a dust suction fan. According to the dust suction device, the T-shaped block drives the sliding block to slide on the inner wall of the fixing frame in a reciprocating mode through the supporting plate and drives the suction nozzle to move up and down in a reciprocating mode to suck dust in air into the material suction bin, so that the dust can be sucked more evenly, the local dust concentration is prevented from being too high, and the risk that the local dust concentration is too high is reduced; and the working efficiency and flexibility are improved.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof dust removal technology, and in particular to a safety device for preventing dust explosions. Background Technology

[0002] In many industrial sectors, such as chemical, pharmaceutical, metallurgical, food processing, wood processing, and plastics manufacturing, a large amount of dust is generated during the production process. These dust particles are small and easily suspended in the air, forming dust clouds that pose an explosion hazard. Dust explosions are extremely destructive and, once they occur, often cause serious casualties and property damage.

[0003] In practical applications, the dust concentration may vary in different locations. In existing technologies, the nozzle position is fixed. A nozzle in a fixed position may only be able to clean dust in a specific area, which will result in dust not being sucked in evenly and failing to effectively cover the entire working area. This will cause uneven dust collection and increase the risk of excessively high local dust concentration. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a safety device to prevent dust explosions. It aims to improve the problem in the prior art where the nozzle position is fixed and cannot effectively cover the entire working area, resulting in uneven dust collection and increasing the risk of excessively high local dust concentration.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A safety device for preventing dust explosions includes a mobile vehicle. A fixed frame is fixedly connected to the upper surface of the mobile vehicle. A sliding block is slidably connected to the inner wall of the fixed frame. A support plate is fixedly connected to the outer wall of the sliding block. A diverter block is fixedly connected to the upper surface of the support plate. A fixed pipe is fixedly connected to the outer wall of the diverter block. A suction nozzle is slidably connected to the inner wall of the fixed pipe. A suction bin is fixedly connected to the upper surface of the mobile vehicle. A vacuum cleaner fan is fixedly connected to the upper surface of the suction bin. One end of a suction pipe is fixedly connected to the outer wall of the vacuum cleaner fan. The other end of the suction pipe is fixedly connected to the upper surface of the suction bin. One end of a retractable hose is fixedly connected to the upper surface of the suction bin. The other end of the retractable hose is fixedly connected to the outer wall of the diverter block. A filter plate is fixedly connected to the inner wall of the suction bin. A first fixed plate is fixedly connected to the outer wall of the suction bin. A movable component is disposed on the upper surface of the first fixed plate.

[0007] Preferably, the moving component includes a U-shaped frame and a second fixed plate. The lower surface of the U-shaped frame is fixedly connected to the upper surface of the first fixed plate, and the lower surface of the second fixed plate is fixedly connected to the upper surface of the first fixed plate. A T-shaped block is slidably connected to the inner wall of the U-shaped frame, and a sliding groove is formed on the outer wall of the T-shaped block. A motor is fixedly connected to the outer wall of the second fixed plate, and the output end of the motor is rotatably connected to the inside of the second fixed plate and fixedly connected to a crank. A sliding column is fixedly connected to the outer wall of the crank, and the outer wall of the sliding column is slidably connected to the inner wall of the sliding groove. The upper surface of the T-shaped block is fixedly connected to the lower surface of the support plate.

[0008] Preferably, one end of a spring is fixedly connected to the lower surface of the T-shaped block, and the other end of the spring is fixedly connected to the upper surface of the fixing plate.

[0009] Preferably, the inner wall of the fixed tube has an inner groove.

[0010] Preferably, the fixed tube has a through groove at the end away from the diverter block, the inner wall of the fixed tube has a through groove, and the outer wall of the suction nozzle is fixedly connected with a locking block.

[0011] Preferably, one end of the second spring is fixedly connected inside the fixed tube, and the other end of the second spring is fixedly connected to a sealing ring, with the outer wall of the sealing ring slidably connected to the inner wall of the inner groove.

[0012] Preferably, the outer wall of the card block is slidably connected to the inner wall of the through groove, the outer wall of the card block is slidably connected to the inner wall of the card groove, and the outer wall of the card block is in contact with the end of the sealing ring away from the second spring.

[0013] Preferably, the outer wall of the suction nozzle is slidably connected to the inner wall of the sealing ring.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the T-shaped block drives the sliding block to slide back and forth on the inner wall of the fixed frame through the support plate, and drives the suction nozzle to move up and down to suck the dust in the air into the interior of the suction chamber. This allows the dust to be sucked in more evenly, avoids excessive local dust concentration, reduces the risk of excessive local dust concentration, and improves work efficiency and flexibility.

[0016] 2. In this utility model, the spring returns to its original position by pushing the sealing ring to drive the locking block into the inner wall of the slot, thereby achieving the effect of quick installation of the suction nozzle. In this way, the appropriate suction nozzle can be selected for installation according to different dust types, improving the adaptability of the safety device to various dust types. Attached Figure Description

[0017] Figure 1 This is a perspective view of a safety device for preventing dust explosions proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of a retractable hose for a safety device to prevent dust explosions proposed in this utility model.

[0019] Figure 3 This is a cross-sectional view of the internal structure of the suction bin of a safety device for preventing dust explosions proposed in this utility model.

[0020] Figure 4 This is a partial structural diagram of a T-shaped block for a safety device to prevent dust explosions proposed in this utility model.

[0021] Figure 5 This is a cross-sectional view of the internal structure of the fixing tube of a safety device for preventing dust explosions proposed in this utility model.

[0022] Legend:

[0023] 1. Mobile cart; 2. Fixed frame; 3. Sliding block; 4. Support plate; 5. Diverting block; 6. Fixed pipe; 7. Suction nozzle; 8. Suction bin; 9. Filter plate; 10. Telescopic hose; 11. Vacuum fan; 12. Suction pipe; 13. Fixed plate one; 14. U-shaped frame; 15. T-shaped block; 16. Sliding groove; 17. Spring one; 18. Fixed plate two; 19. Motor; 20. Crank; 21. Sliding column; 22. Locking block; 23. Inner groove; 24. Through groove; 25. Locking groove; 26. Spring two; 27. Sealing ring. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figure 1 - Figure 4This utility model provides an embodiment of a safety device for preventing dust explosions, comprising a mobile vehicle 1, a fixed frame 2 fixedly connected to the upper surface of the mobile vehicle 1, a sliding block 3 slidably connected to the inner wall of the fixed frame 2, a support plate 4 fixedly connected to the outer wall of the sliding block 3, a diverting block 5 fixedly connected to the upper surface of the support plate 4, a fixed pipe 6 fixedly connected to the outer wall of the diverting block 5, a suction nozzle 7 slidably connected to the inner wall of the fixed pipe 6, a suction bin 8 fixedly connected to the upper surface of the mobile vehicle 1, a dust collection fan 11 fixedly connected to the upper surface of the suction bin 8, one end of a suction pipe 12 fixedly connected to the outer wall of the dust collection fan 11, the other end of the suction pipe 12 fixedly connected to the upper surface of the suction bin 8, one end of a retractable hose 10 fixedly connected to the upper surface of the suction bin 8, and the other end of the retractable hose 10 fixedly connected to the outer wall of the diverting block 5 for suction. A filter plate 9 is fixedly connected to the inner wall of the suction bin 8, and a fixed plate 13 is fixedly connected to the outer wall of the suction bin 8. A moving component is provided on the upper surface of the fixed plate 13. The moving component includes a U-shaped frame 14 and a fixed plate 2 18. The lower surface of the U-shaped frame 14 is fixedly connected to the upper surface of the fixed plate 13, and the lower surface of the fixed plate 2 18 is fixedly connected to the upper surface of the fixed plate 13. A T-shaped block 15 is slidably connected to the inner wall of the U-shaped frame 14. A sliding groove 16 is provided on the outer wall of the T-shaped block 15. A motor 19 is fixedly connected to the outer wall of the fixed plate 2 18. The output end of the motor 19 is rotatably connected to the inside of the fixed plate 2 18 and a crank 20 is fixedly connected to it. A sliding column 21 is fixedly connected to the outer wall of the crank 20. The outer wall of the sliding column 21 is slidably connected to the inner wall of the sliding groove 16. The upper surface of the T-shaped block 15 is fixedly connected to the lower surface of the support plate 4.

[0026] Specifically, the device is moved to a dusty area, and then the vacuum fan 11 is turned on. After the vacuum fan 11 is started, it creates a negative pressure on the inner wall of the suction chamber 8 through the suction pipe 12, which causes the dust gas to slide through the suction nozzle 7 into the fixed pipe 6 and into the interior of the diverter block 5. Then it enters the interior of the suction chamber 8 through the retractable hose 10. After being filtered by the filter plate 9, it is trapped inside the suction chamber 8, which can reduce the dust content in the air and prevent dust explosion.

[0027] Reference Figure 4 One end of spring 17 is fixedly connected to the lower surface of T-block 15, and the other end of spring 17 is fixedly connected to the upper surface of fixed plate 13.

[0028] Specifically, during the reciprocating movement of the T-block 15, the spring 17 will intermittently contract and rebound to its original position, which can improve the smoothness of the reciprocating movement of the T-block 15.

[0029] Reference Figure 1 , Figure 2 and Figure 5The inner wall of the fixed tube 6 has an inner groove 23; the end of the fixed tube 6 away from the diverter block 5 has a through groove 24; the outer wall of the nozzle 7 is fixedly connected to a locking block 22; one end of the second spring 26 is fixedly connected to the inside of the fixed tube 6; the other end of the second spring 26 is fixedly connected to a sealing ring 27; the outer wall of the sealing ring 27 is slidably connected to the inner wall of the inner groove 23; the outer wall of the locking block 22 is slidably connected to the inner wall of the through groove 24; the outer wall of the locking block 22 is slidably connected to the inner wall of the slot 25; the outer wall of the locking block 22 is in contact with the end of the sealing ring 27 away from the second spring 26; the outer wall of the nozzle 7 is slidably connected to the inner wall of the sealing ring 27.

[0030] Specifically, the inner groove 23 provides space for the sealing ring 27 to slide, the through groove 24 provides space for the locking block 22 to pass through, the locking slot 25 provides space for the locking block 22 to engage, and the sealing ring 27 can seal the nozzle 7 after installation, which can improve the reliability of the equipment.

[0031] Working principle: When using this device, start motor 19. When motor 19 starts, it drives crank 20 to rotate, which in turn causes slide column 21 to rotate. When slide column 21 rotates, it slides on the inner wall of sliding groove 16, causing T-shaped block 15 to move up and down reciprocally and slide on the inner wall of U-shaped frame 14. This causes T-shaped block 15 to drive slide block 3 to slide back and forth on the inner wall of fixed frame 2 through support plate 4, and drive suction nozzle 7 to move up and down reciprocally to suck dust in the air into the suction chamber 8. This allows the dust to be sucked in more evenly, avoiding excessive local dust concentration, reducing the risk of excessive local dust concentration, and improving work efficiency and flexibility. When it is necessary to replace or install suction nozzle 7, simply slide the suction nozzle 7 onto the locking block 22 in the through groove. When the nozzle 7 slides completely through the inner wall of the through groove 24, the outer wall of the locking block 22 will fit against the end of the sealing ring 27 away from the spring 26. At the same time, the outer wall of the nozzle 7 will slide on the inner wall of the sealing ring 27. As the nozzle 7 continues to slide into the inner wall of the fixed tube 6, the locking block 22 will push the sealing ring 27 to slide on the inner wall of the inner groove 23 and cause the spring 26 to contract under force. Then, the nozzle 7 will be rotated 90 degrees and then the nozzle 7 will no longer be pushed. This will cause the spring 26, which is in a contracted state, to rebound and reset, pushing the sealing ring 27 to drive the locking block 22 into the inner wall of the slot 25, thereby achieving the effect of quickly installing the nozzle 7. Then, the appropriate nozzle 7 can be selected for installation according to different dust types, improving the adaptability of the safety device to various dusts.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety device for preventing dust explosions, comprising a mobile vehicle (1), characterized in that: A fixed frame (2) is fixedly connected to the upper surface of the mobile vehicle (1). A sliding block (3) is slidably connected to the inner wall of the fixed frame (2). A support plate (4) is fixedly connected to the outer wall of the sliding block (3). A diverting block (5) is fixedly connected to the upper surface of the support plate (4). A fixed pipe (6) is fixedly connected to the outer wall of the diverting block (5). A suction nozzle (7) is slidably connected to the inner wall of the fixed pipe (6). A suction bin (8) is fixedly connected to the upper surface of the mobile vehicle (1). A dust collection fan (11) is fixedly connected to the upper surface of the suction bin (8). The outer wall of the vacuum blower (11) is fixedly connected to one end of the suction pipe (12), the other end of the suction pipe (12) is fixedly connected to the upper surface of the suction bin (8), the upper surface of the suction bin (8) is fixedly connected to one end of the retractable hose (10), the other end of the retractable hose (10) is fixedly connected to the outer wall of the diverter block (5), the inner wall of the suction bin (8) is fixedly connected to the filter plate (9), the outer wall of the suction bin (8) is fixedly connected to the fixing plate (13), and the upper surface of the fixing plate (13) is provided with a moving component.

2. The safety device for preventing dust explosions according to claim 1, characterized in that: The moving component includes a U-shaped frame (14) and a second fixed plate (18). The lower surface of the U-shaped frame (14) is fixedly connected to the upper surface of the first fixed plate (13). The lower surface of the second fixed plate (18) is fixedly connected to the upper surface of the first fixed plate (13). A T-shaped block (15) is slidably connected to the inner wall of the U-shaped frame (14). A sliding groove (16) is provided on the outer wall of the T-shaped block (15). A motor (19) is fixedly connected to the outer wall of the second fixed plate (18). The output end of the motor (19) is rotatably connected to the inside of the second fixed plate (18) and fixedly connected to a crank (20). A sliding column (21) is fixedly connected to the outer wall of the crank (20). The outer wall of the sliding column (21) is slidably connected to the inner wall of the sliding groove (16). The upper surface of the T-shaped block (15) is fixedly connected to the lower surface of the support plate (4).

3. A safety device for preventing dust explosions according to claim 2, characterized in that: One end of a spring (17) is fixedly connected to the lower surface of the T-shaped block (15), and the other end of the spring (17) is fixedly connected to the upper surface of the fixing plate (13).

4. A safety device for preventing dust explosions according to claim 1, characterized in that: The inner wall of the fixed tube (6) is provided with an inner groove (23).

5. A safety device for preventing dust explosions according to claim 1, characterized in that: The fixed tube (6) has a through groove (24) at one end away from the diverter block (5), the inner wall of the fixed tube (6) has a through groove (24), and the outer wall of the suction nozzle (7) is fixedly connected with a locking block (22).

6. A safety device for preventing dust explosions according to claim 1, characterized in that: One end of a second spring (26) is fixedly connected inside the fixed tube (6), and the other end of the second spring (26) is fixedly connected to a sealing ring (27). The outer wall of the sealing ring (27) is slidably connected to the inner wall of the inner groove (23).

7. A safety device for preventing dust explosions according to claim 5, characterized in that: The outer wall of the card block (22) is slidably connected to the inner wall of the through groove (24), and the outer wall of the card block (22) is slidably connected to the inner wall of the card slot (25). The outer wall of the card block (22) is in contact with the end of the sealing ring (27) away from the second spring (26).

8. A safety device for preventing dust explosions according to claim 1, characterized in that: The outer wall of the suction nozzle (7) is slidably connected to the inner wall of the sealing ring (27).

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