Dustproof and explosion-proof safety bin of polymeric membrane raw material pulverizer
By designing dust removal and exhaust components for the explosion-proof chamber, the risk of explosion caused by excessive dust concentration in the crusher was solved, achieving efficient dust filtration and settling, and improving the safety and dust removal effect of the crusher.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN GOETHE ELECTRONICS CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-15
AI Technical Summary
The safety chamber of existing polymer membrane raw material crushers is prone to dust explosion when the dust concentration is too high, and existing equipment is difficult to effectively prevent dust accumulation and discharge.
An explosion-proof chamber including a dust extraction component and a dust discharge component was designed. The dust is filtered by the suction of a fan, initially filtered by a bag filter, and blocked by mechanical vibration. The dust is guided by a baffle plate, conveyed by an auger, and water mist is sprayed to settle the dust when it is discharged.
It effectively reduces the risk of dust explosion, improves dust removal efficiency, prevents dust from scattering, and enhances safety and dust removal quality.
Smart Images

Figure CN224237052U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polymer membrane raw material crushing technology, and in particular to a dustproof and explosion-proof safety chamber for a polymer membrane raw material crusher. Background Technology
[0002] Polymer membranes are thin films made of polymers. Polymers are macromolecular compounds composed of many identical, simple structural units linked by repeated covalent bonds. The raw materials for polymer membranes are these polymers or their precursors used to prepare polymer membranes. The safety chamber of a pulverizer is a closed structure installed outside the pulverizer, mainly used to ensure the safety of pulverizing operations and prevent safety accidents such as dust explosions and dust leaks.
[0003] In existing technologies, safety chambers are typically only used to cover the outside of the crusher to prevent dust from escaping. However, the environment inside the safety chamber can generate a lot of dust due to the continuous crushing of polymer film materials by the crusher. If the dust concentration inside the safety chamber is too high, and a short circuit in the motor inside the crusher causes a spark, creating a source of ignition, and if the dust is not easily discharged in time, a dust explosion can easily occur due to the excessive dust concentration, thus increasing the danger of the safety chamber. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dustproof and explosion-proof safety chamber for a polymer membrane raw material crusher.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dustproof and explosion-proof safety chamber for a polymer membrane raw material crusher, including an explosion-proof chamber body, wherein a dust removal component is provided on the upper surface of the explosion-proof chamber body;
[0006] The dust removal assembly includes a dust removal pipe that is connected to the upper surface of the explosion-proof chamber. One end of the dust removal pipe is connected to a connecting frame. A fixing frame is fixedly connected to one side of the connecting frame. An air outlet plate is fixedly connected to one side of the fixing frame. A fan is fixedly installed inside the fixing frame. A bag filter is fixedly installed inside the connecting frame. A through groove and two through holes are provided on the upper surface of the connecting frame.
[0007] As a further description of the above technical solution:
[0008] Two through holes are provided on both sides of the through groove. A bracket is fixedly connected to the upper surface of the connecting frame. A variable speed motor is fixedly installed at one end of the bracket. A connecting block is fixedly connected to the output end of the variable speed motor. A connecting rod is rotatably connected to one side of the connecting block. Two air inlets are opened on one side of the explosion-proof chamber.
[0009] As a further description of the above technical solution:
[0010] One end of the connecting rod is rotatably connected to a T-shaped block. The inner wall of the T-shaped block is fixedly connected to two limiting rods and two springs. The springs are arranged outside the limiting rods, and the two springs are fixedly connected to the upper surface of the connecting frame.
[0011] As a further description of the above technical solution:
[0012] The connecting frame is equipped with a dust removal component, which includes two guide plates that are fixedly connected to the inner wall of the connecting frame.
[0013] As a further description of the above technical solution:
[0014] A water tank is fixedly connected to one side of the explosion-proof compartment. A water inlet pipe is connected through one side of the water tank. A water-blocking cap is threaded to one end of the water inlet pipe. A flow pipe is connected through one side of the water tank. A water pump is connected through the middle of the flow pipe.
[0015] As a further description of the above technical solution:
[0016] One end of the flow tube is fixedly connected to an annular tube, and multiple spray heads are connected through the inner wall of the annular tube. A dust outlet tube is connected through the lower surface of the connecting frame, and the annular tube is fixedly connected to the outside of the dust outlet tube.
[0017] As a further description of the above technical solution:
[0018] A protective shell is fixedly connected to the inner wall of the dust outlet pipe. A variable speed motor and a ventilation plate are fixedly installed inside the protective shell. The ventilation plate is located below the variable speed motor. An auger is fixedly connected to the output end of the variable speed motor. A dust cover is threadedly connected to one end of the dust outlet pipe.
[0019] This utility model has the following beneficial effects:
[0020] This invention utilizes a dust removal component to draw dust from the explosion-proof chamber into a baghouse dust collector for filtration. The filtered air is then expelled by the fan. Furthermore, the repeated tapping of the T-shaped rod on the fixedly installed baghouse dust collector helps to vibrate and dislodge the filtered dust, thereby reducing clogging during dust removal and improving the dust removal quality.
[0021] This invention, through the design of the dust extraction component, utilizes the guiding effect of the guide plate to help guide the falling dust. At the same time, the rotation of the auger helps to discharge the dust inside the connecting frame through the dust collection pipe. When the dust is discharged, water mist is sprayed onto the dust through the annular pipe and spray head to capture the dust, causing it to settle and reducing the phenomenon of dust scattering during discharge. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;
[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting frame proposed in this utility model;
[0024] Figure 3 This is a schematic diagram of the guide plate structure proposed in this utility model;
[0025] Figure 4 for Figure 2 Enlarged view of point A in the middle;
[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the protective shell proposed in this utility model;
[0027] Figure 6 This is a schematic diagram of the annular tube structure proposed in this utility model.
[0028] Legend:
[0029] 1. Explosion-proof chamber; 2. Dust exhaust pipe; 3. Connecting frame; 4. Fixing frame; 5. Air outlet plate; 6. Fan; 7. Bag filter; 8. Through groove; 9. Through hole; 10. Bracket; 11. Variable speed motor; 12. Connecting block; 13. Connecting rod; 14. T-block; 15. Limiting rod; 16. Spring; 17. Guide plate; 18. Water tank; 19. Water inlet pipe; 20. Water blocking cover; 21. Flow pipe; 22. Water pump; 23. Ring pipe; 24. Spray head; 25. Dust outlet pipe; 26. Protective shell; 27. Variable speed motor; 28. Ventilation plate; 29. Screwdriver; 30. Dust blocking cover. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] As attached Figure 1-6As shown, one embodiment of this utility model is provided: a dustproof and explosion-proof safety chamber for a polymer membrane raw material crusher, including an explosion-proof chamber body 1, and a dust removal component is provided on the upper surface of the explosion-proof chamber body 1;
[0032] The dust removal assembly includes a dust removal pipe 2, which is connected to the upper surface of the explosion-proof chamber 1. One end of the dust removal pipe 2 is connected to a connecting frame 3. A fixing frame 4 is fixedly connected to one side of the connecting frame 3. An air outlet plate 5 is fixedly connected to one side of the fixing frame 4, which protects the fan 6. The fan 6 is fixedly installed inside the fixing frame 4. A bag filter 7 is fixedly installed inside the connecting frame 3. A through groove 8 and two through holes 9 are provided on the upper surface of the connecting frame 3. The through groove 8 is used for the passage of the T-shaped block 14, and the through holes 9 are used for the passage of the limit rod 15.
[0033] As attached Figure 4 As shown, two through holes 9 are set on both sides of the through groove 8. A bracket 10 is fixedly connected to the upper surface of the connecting frame 3. A variable speed motor 11 is fixedly installed at one end of the bracket 10. A connecting block 12 is fixedly connected to the output end of the variable speed motor 11 to drive the connecting rod 13 to rotate. The connecting rod 13 is rotatably connected to one side of the connecting block 12. Two air inlets are opened on one side of the explosion-proof chamber 1. A T-shaped block 14 is rotatably connected to one end of the connecting rod 13 to facilitate striking the bag filter 7. Two limiting rods 15 and two springs 16 are fixedly connected to the inner wall of the T-shaped block 14. The springs 16 are set outside the limiting rods 15 so that the limiting rods 15 limit the springs 16. The two springs 16 are fixedly connected to the upper surface of the connecting frame 3 so that the springs 16 form elastic force on the T-shaped block 14, increasing the striking force of the T-shaped block 14 on one side of the bag filter 7.
[0034] As attached Figure 3 As shown, a dust removal component is provided inside the connecting frame 3. The dust removal component includes two guide plates 17, which are fixedly connected to the inner wall of the connecting frame 3 to guide the dust.
[0035] As attached Figure 1 As shown, a water tank 18 is fixedly connected to one side of the explosion-proof chamber 1. A water inlet pipe 19 is connected through one side of the water tank 18. A water-blocking cap 20 is threaded to one end of the water inlet pipe 19 for water inlet into the water tank 18. A flow pipe 21 is connected through one side of the water tank 18 to facilitate water flow. A water pump 22 is connected through the middle of the flow pipe 21. An annular pipe 23 is fixedly connected to one end of the flow pipe 21, so that the water flow forms an annular shape. When sprayed out through the spray head 24, it surrounds the dust. A dust outlet pipe 25 is connected through the lower surface of the connecting frame 3 to facilitate dust discharge. The annular pipe 23 is fixedly connected to the outside of the dust outlet pipe 25. A dust-blocking cap 30 is threaded to one end of the dust outlet pipe 25 to prevent dust when discharge is not required.
[0036] As attached Figure 6 As shown, multiple spray heads 24 are connected through the inner wall of the annular tube 23 to facilitate the formation of a spray to spray dust.
[0037] As attached Figure 5 As shown, a protective shell 26 is fixedly connected to the inner wall of the dust outlet pipe 25, which protects the variable speed motor 27. The variable speed motor 27 and a ventilation plate 28 are fixedly installed inside the protective shell 26. The ventilation plate 28 is located below the variable speed motor 27 to facilitate the heat dissipation of the variable speed motor 27. An auger 29 is fixedly connected to the output end of the variable speed motor 27 for conveying dust.
[0038] Working Principle: During operation, the crusher is placed inside the explosion-proof chamber 1. The crusher's feed and discharge pipes are then connected to the feed and discharge pipes on the opposite side of the water tank 18 of the explosion-proof chamber 1. When crushing materials and generating significant dust that needs to be discharged, the controller starts the fan 6. The suction force of the fan 6 draws the dust from inside the explosion-proof chamber 1 through the dust discharge pipe 2 into the connecting frame 3. The dust then passes through the bag filter 7, where it remains on one side. Air, after passing through the fan 6, is discharged by the fixed frame 4. After the dust inside the explosion-proof chamber 1 has been completely absorbed, the fan 6 is turned off, and then the variable speed motor 11 is started. When the output end of the high-speed motor 11 drives the connecting block 12 to rotate, the connecting block 12 drives the connecting rod 13 to revolve, which in turn causes the T-shaped block 14 to be pulled up and down and slide inside the through groove 8. This causes the T-shaped block 14 to drive the limiting rod 15 to slide inside the through hole 9. At the same time, when the T-shaped block 14 is lifted, the spring 16 is stretched. When the T-shaped block 14 moves down, it is pulled back by the spring 16, which causes the bottom of the T-shaped block 14 to hit the upper surface of the bag filter 7, causing the bag filter 7 to vibrate mechanically. This causes the dust adsorbed on the bag filter 7 to fall off, thereby reducing the phenomenon of blockage in the bag filter 7.
[0039] When the dust falls, it will land on the guide plate 17. Then, the dust cover 30 is opened, and the dust collection box is placed at the bottom of the dust outlet pipe 25. The variable speed motor 27 is turned on, and its output end drives the auger 29 to rotate. This causes the auger 29 to transport the dust guided by the guide plate 17 to the outside through the dust outlet pipe 25. While the dust is being transported, the water pump 22 is started. After the water in the water tank 18 filled with water is transported to the annular pipe 23 through the flow pipe 21, it is sprayed out through the spray head 24. This sprays water vapor onto the dust exiting from one end of the dust outlet pipe 25, causing the dust to settle and fall into the dust collection box for easy collection.
[0040] 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 dustproof and explosion-proof safety chamber for a polymer membrane raw material pulverizer, comprising an explosion-proof chamber body (1), characterized in that: The upper surface of the explosion-proof chamber (1) is provided with a dust removal component; The dust removal assembly includes a dust removal pipe (2), which is connected to the upper surface of the explosion-proof chamber (1). One end of the dust removal pipe (2) is connected to a connecting frame (3). A fixing frame (4) is fixedly connected to one side of the connecting frame (3). An air outlet plate (5) is fixedly connected to one side of the fixing frame (4). A fan (6) is fixedly installed inside the fixing frame (4). A bag filter (7) is fixedly installed inside the connecting frame (3). A through groove (8) and two through holes (9) are provided on the upper surface of the connecting frame (3).
2. The dustproof and explosion-proof safety chamber of the polymer membrane raw material pulverizer according to claim 1, characterized in that: Two through holes (9) are provided on both sides of the through groove (8). A bracket (10) is fixedly connected to the upper surface of the connecting frame (3). A variable speed motor (11) is fixedly installed at one end of the bracket (10). A connecting block (12) is fixedly connected to the output end of the variable speed motor (11). A connecting rod (13) is rotatably connected to one side of the connecting block (12). Two air inlets are opened on one side of the explosion-proof chamber (1).
3. The dustproof and explosion-proof safety chamber of the polymer membrane raw material pulverizer according to claim 2, characterized in that: One end of the connecting rod (13) is rotatably connected to a T-shaped block (14). The inner wall of the T-shaped block (14) is fixedly connected to two limiting rods (15) and two springs (16). The springs (16) are set outside the limiting rods (15), and the two springs (16) are fixedly connected to the upper surface of the connecting frame (3).
4. The dustproof and explosion-proof safety chamber of the polymer membrane raw material pulverizer according to claim 1, characterized in that: The connecting frame (3) is provided with a dust removal component, which includes two guide plates (17) and the two guide plates (17) are fixedly connected to the inner wall of the connecting frame (3).
5. The dustproof and explosion-proof safety chamber of the polymer membrane raw material pulverizer according to claim 1, characterized in that: A water tank (18) is fixedly connected to one side of the explosion-proof compartment (1). A water inlet pipe (19) is connected through one side of the water tank (18). A water-blocking cap (20) is threaded to one end of the water inlet pipe (19). A flow pipe (21) is connected through one side of the water tank (18). A water pump (22) is connected through the middle of the flow pipe (21).
6. The dustproof and explosion-proof safety chamber of the polymer membrane raw material pulverizer according to claim 5, characterized in that: One end of the flow tube (21) is fixedly connected to an annular tube (23), and multiple spray heads (24) are connected through the inner wall of the annular tube (23). The lower surface of the connecting frame (3) is connected through a dust outlet tube (25), and the annular tube (23) is fixedly connected to the outside of the dust outlet tube (25).
7. The dustproof and explosion-proof safety chamber of the polymer membrane raw material pulverizer according to claim 6, characterized in that: The inner wall of the dust outlet pipe (25) is fixedly connected to a protective shell (26). A variable speed motor (27) and a ventilation plate (28) are fixedly installed inside the protective shell (26). The ventilation plate (28) is located below the variable speed motor (27). An auger (29) is fixedly connected to the output end of the variable speed motor (27). A dustproof cover (30) is threadedly connected to one end of the dust outlet pipe (25).