Dustproof device for modified plastic production
By employing a trapezoidal dust collection box and a cone-shaped mesh combination structure in the dust prevention device for modified plastics production, combined with a protective mesh and a leak-proof box, the problem of dust adhesion affecting product quality was solved, and effective dust collection and cleaning were achieved.
Patent Information
- Application Number
- CN202520500193.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
When existing dustproof devices stop absorbing dust, the dust adhering to the inner wall easily falls off, affecting product quality.
A dust prevention device for modified plastic production was designed, which adopts a combination structure of trapezoidal dust collection box and cone-shaped mesh, combined with protective mesh and leak-proof box, to prevent dust from adhering and facilitate cleaning.
It effectively prevents dust from adhering to the inner wall of the suction pipe, ensuring product quality. The design of the protective net and leak-proof box enables effective dust collection and cleaning.
Smart Images

Figure CN223960295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bag filter dust collection equipment, specifically a dust prevention device for modified plastic production. Background Technology
[0002] In the production of modified plastics, plastic needs to be poured from sacks into a mixer. During the mixing process, a certain amount of dust is generated, which can have a certain impact on the health of workers. Therefore, dustproof devices are often installed above the mixer.
[0003] In existing technologies, dust control devices vary widely. Most dust control devices use thin pipes to suck dust into a main pipe, which then discharges it into a dust collection cylinder for final cleaning. However, when the suction pipe stops absorbing dust, the dust adhering to the inner wall may fall off, and some accumulated dust may even fall into the equipment below, affecting product quality. Therefore, this utility model proposes a dust control device for modified plastics production to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a dustproof device for modified plastic production to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dustproof device for modified plastic production, comprising: a base plate, a negative pressure cylinder fixedly connected to the upper surface of the base plate, a suction fan provided on one side of the negative pressure cylinder, a main pipe fixedly connected to one side of the suction fan, a dust suction pipe provided on the lower surface of the main pipe, and a dust suction port device provided below the dust suction pipe.
[0006] Preferably, the suction port device includes a trapezoidal suction box, a protective net, and a cone-shaped net. The trapezoidal suction box is fixedly installed on the lower surface of the suction pipe. A trapezoidal opening is formed on the lower surface of the trapezoidal suction box. The protective net is disposed inside the trapezoidal opening. A first through hole is formed on the upper surface of the trapezoidal opening. The first through hole penetrates the top of the trapezoidal suction box. The cone-shaped net is fixedly connected to the lower surface of the first through hole.
[0007] Preferably, a slide is provided on one side of the trapezoidal dust collection box, and the protective net extends into the slide and is slidably connected to it.
[0008] Preferably, a pair of connecting blocks are fixedly connected to one side of the protective net, and a pull ring is fixedly connected to one side of each connecting block, and a groove is formed on the upper surface of each connecting block.
[0009] Preferably, a buckle assembly is provided above the slide rail. The buckle assembly includes a fixing block and a pin. The fixing block is fixedly connected to one side of the trapezoidal dust collection box, and the pin passes through the fixing block and extends into the groove.
[0010] Preferably, the surface of the cone-shaped mesh is provided with a plurality of second through holes, and a leak-proof box is provided below the cone-shaped mesh. A fixing rod is fixedly connected to the center of the leak-proof box, and the fixing rod extends into the bottom of the cone-shaped mesh and is threadedly connected to it.
[0011] Preferably, the main pipe is fitted with a plurality of connecting rings, each connecting ring having a connecting rod fixedly connected to its upper surface, and each connecting rod having a mounting plate fixedly connected to its top, the mounting plate being connected to the roof by screws.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention, by setting a trapezoidal dust collection box, effectively prevents dust from falling inside from being blocked by the leak-proof box, and the leak-proof box can be cleaned, thus effectively ensuring that the quality of the product is not affected by the dust inside the dust collection tube. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the dust suction port device of this utility model;
[0016] Figure 3 This is a structural schematic diagram of the dust suction port device of this utility model from another perspective;
[0017] Figure 4 This is a three-dimensional structural diagram of the protective netting of this utility model;
[0018] Figure 5 This is a three-dimensional structural diagram of the buckle assembly of this utility model;
[0019] Figure 6 This is a three-dimensional structural diagram of the conical mesh and leak-proof box of this utility model.
[0020] In the diagram: 1. Base plate; 2. Dust suction port device; 3. Dust suction pipe; 4. Main pipe; 5. Connecting ring; 6. Connecting rod; 7. Mounting plate; 8. Fan; 10. Negative pressure cylinder; 11. Trapezoidal dust collection box; 12. Protective net; 13. Trapezoidal opening; 14. Slide rail; 15. Buckle assembly; 16. First through hole; 17. Conical mesh; 18. Connecting block; 19. Groove; 20. Pull ring; 21. Fixing block; 22. Pin; 23. Leak-proof box; 24. Fixing rod; 25. Second through hole. Detailed Implementation
[0021] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.
[0022] Example 1
[0023] Please see Figures 1-3 This utility model provides a technical solution: a dustproof device for modified plastic production, comprising: a base plate 1, a negative pressure cylinder 10 fixedly connected to the upper surface of the base plate 1, the negative pressure cylinder 10 forming an atmospheric negative pressure to ensure strong suction force when the equipment is suctioned, a suction fan 8 provided on one side of the negative pressure cylinder 10 for sucking up dust, a main pipe 4 fixedly connected to one side of the suction fan 8 for conveying the main pipe 4, a dust suction pipe 3 provided on the lower surface of the main pipe 4 for sucking up the smoke generated during the movement of the equipment, and a dust suction port device 2 provided below the dust suction pipe 3, the dust suction port device 2 being configured in a square horn shape to ensure a wider dust suction range.
[0024] The suction port device 2 includes a trapezoidal suction box 11, a protective net 12, and a cone-shaped net 17. The trapezoidal suction box 11 is fixedly installed on the lower surface of the suction pipe 3. All four sides of the trapezoidal suction box 11 are trapezoidal, and the whole is set in the shape of a truncated pyramid. A trapezoidal opening 13 is opened on the lower surface of the trapezoidal suction box 11, and the trapezoidal opening 13 extends into the trapezoidal suction box 11. The protective net 12 is set in the trapezoidal opening 13 and is used to protect the cone-shaped net 17 inside. A first through hole 16 is opened on the upper surface of the trapezoidal opening 13. The first through hole 16 penetrates the inside and outside of the trapezoidal suction box 11 and penetrates the top of the trapezoidal suction box 11. The cone-shaped net 17 is fixedly connected to the lower surface of the first through hole 16. Smoke and dust must pass through the protective net 12 and the cone-shaped net to enter the suction pipe 3.
[0025] Dust passing through the protective net 12 and the cone net may adhere to the cone net and the protective net 12. The protective net 12 can be removed frequently for cleaning, while the dust falling on the cone net will be caught by the leak-proof box 23 below the cone net.
[0026] Example 2
[0027] Please see Figures 2-6Based on Embodiment 1, a slide 14 is provided on one side of the trapezoidal dust collection box 11. The slide 14 extends into the inner wall of the trapezoidal dust collection box 11. The protective net 12 extends into the slide 14 and is slidably connected to it. The protective net 12 can be removed through the slide 14. A pair of connecting blocks 18 are fixedly connected to one side of the protective net 12. A pull ring 20 is fixedly connected to one side of each connecting block 18. The pull ring 20 and the connecting block 18 are for easy removal of the protective net 12 when needed. A groove 1 is provided on the upper surface of each connecting block 18. 9. The groove 19 is used to fix the protective net 12 to ensure that the protective net 12 will not easily slip off. A buckle assembly 15 is provided above the slide 14. The buckle assembly 15 is used to hold the protective net 12. The buckle assembly 15 includes a fixing block 21 and a pin 22. The fixing block 21 is fixedly connected to one side of the trapezoidal dust collection box 11. The fixing block 21 is inclined like the side wall of the trapezoidal dust collection box 11. The pin 22 passes through the fixing block 21 and extends into the groove 19. The pin 22 extending into the groove 19 will prevent the protective net 12 from sliding in the slide 14.
[0028] The surface of the cone-shaped mesh 17 is provided with a plurality of second through holes 25. A leak-proof box 23 is provided below the cone-shaped mesh 17. The leak-proof box 23 can not only protect the dust falling on the cone-shaped mesh 17, but also protect the dust falling from the dust suction pipe 3. A fixing rod 24 is fixedly connected to the center of the leak-proof box 23. The fixing rod 24 fixes the leak-proof box 23 to the bottom of the cone-shaped mesh 17. The fixing rod 24 extends into the bottom of the cone-shaped mesh 17 and is threadedly connected to it. If you want to remove the leak-proof box 23, you can rotate the leak-proof box 23 to detach the fixing rod 24 from the cone-shaped mesh 17.
[0029] In actual use, the protective net 12 can be fixed by using the pin 22. When the pin 22 is not inserted into the groove 19, the protective net 12 can be pulled and removed by the pull ring 20 on the side. When it is necessary to remove the leak-proof box 23, the leak-proof box 23 can be rotated. At this time, the fixing rod 24 will rotate with it. Finally, the fixing rod 24 will disengage from the conical net and the leak-proof box 23 can be removed.
[0030] Example 3
[0031] Please see Figure 1 Based on Embodiment 2, a plurality of connecting rings 5 are fitted onto the main pipe 4. A connecting rod 6 is fixedly connected to the upper surface of each connecting ring 5. The connecting rod 6 and the connecting ring 5 are designed to lift the main pipe to ensure the stability of the equipment. A mounting plate 7 is fixedly connected to the top of each connecting rod 6. The mounting plate 7 is used during installation. The mounting plate 7 can install the main pipe 4 on the ceiling of the room. The mounting plate 7 is connected to the ceiling by screws. In this way, the mounting plate 7 can be fixed to the ceiling or a beam by screws.
[0032] In actual use, the protective net 12 can be fixed by using the pin 22. When the pin 22 is not inserted into the groove 19, the protective net 12 can be pulled by the pull ring 20 on the side and removed. When it is necessary to remove the leak-proof box 23, the leak-proof box 23 can be rotated. At this time, the fixing rod 24 will rotate with it. Finally, the fixing rod 24 will disengage from the conical net and the leak-proof box 23 can be removed.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dustproof device for modified plastics production, comprising: The base plate (1) is characterized in that: a negative pressure cylinder (10) is fixedly connected to the upper surface of the base plate (1), a suction fan (8) is provided on one side of the negative pressure cylinder (10), a main pipe (4) is fixedly connected to one side of the suction fan (8), a dust suction pipe (3) is provided on the lower surface of the main pipe (4), and a dust suction port device (2) is provided below the dust suction pipe (3).
2. The dustproof device for modified plastic production according to claim 1, characterized in that: The suction port device (2) includes a trapezoidal suction box (11), a protective net (12), and a cone-shaped net (17). The trapezoidal suction box (11) is fixedly installed on the lower surface of the suction pipe (3). A trapezoidal opening (13) is provided on the lower surface of the trapezoidal suction box (11). The protective net (12) is placed inside the trapezoidal opening (13). A first through hole (16) is provided on the upper surface of the trapezoidal opening (13). The first through hole (16) penetrates the top of the trapezoidal suction box (11). The cone-shaped net (17) is fixedly connected to the lower surface of the first through hole (16).
3. The dustproof device for modified plastic production according to claim 2, characterized in that: The trapezoidal dust collection box (11) has a slide (14) on one side, and the protective net (12) extends into the slide (14) and is slidably connected to it.
4. A dustproof device for modified plastic production according to claim 3, characterized in that: A pair of connecting blocks (18) are fixedly connected to one side of the protective net (12), and a pull ring (20) is fixedly connected to one side of each connecting block (18). A groove (19) is provided on the upper surface of each connecting block (18).
5. A dustproof device for modified plastic production according to claim 4, characterized in that: A buckle assembly (15) is provided above the slide (14). The buckle assembly (15) includes a fixing block (21) and a pin (22). The fixing block (21) is fixedly connected to one side of the trapezoidal dust collection box (11). The pin (22) passes through the fixing block (21) and extends into the groove (19).
6. A dustproof device for modified plastic production according to claim 5, characterized in that: The surface of the cone-shaped mesh (17) is provided with a plurality of second through holes (25), and a leak-proof box (23) is provided below the cone-shaped mesh (17). A fixing rod (24) is fixedly connected to the center of the leak-proof box (23), and the fixing rod (24) extends into the bottom of the cone-shaped mesh (17) and is threadedly connected to it.
7. A dustproof device for modified plastic production according to claim 6, characterized in that: The main pipe (4) is fitted with several connecting rings (5), and each connecting ring (5) is fixedly connected to a connecting rod (6) on its upper surface. Each connecting rod (6) is fixedly connected to a mounting plate (7) on its top. The mounting plate (7) is connected to the roof by screws.