Arch breaking and blockage clearing device for coal unloading ditch
By introducing a dust collection component and a moving component into the coal unloading ditch arch breaker and unblocker, the problems of dust dispersion and inconvenient equipment movement have been solved, resulting in dust reduction, improved equipment flexibility, and increased unblocking efficiency and equipment lifespan.
Patent Information
- Application Number
- CN202423242719.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
When using airflow to break up and clear blockages in existing coal unloading trenches, dust on the coal surface is easily scattered, affecting the health of workers and reducing the lifespan of the equipment. At the same time, the equipment is inconvenient to move, which affects the efficiency of clearing blockages.
A coal unloading trench arch breaking and blockage clearing device was designed, equipped with a dust collection component and a moving component. The dust collection component filters dust through a fan and a filter cartridge, while the moving component enables flexible movement of the device through wheels and studs.
It effectively reduced dust concentration, protected the health of workers, extended equipment life, and improved equipment flexibility and unclogging efficiency.
Smart Images

Figure CN223645900U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of arch-breaking and blockage-clearing devices, and in particular to an arch-breaking and blockage-clearing device for coal unloading trenches. Background Technology
[0002] Coal unloading trenches are typically located at the front end of the coal conveying process. They are specially designed areas for receiving and unloading coal and are widely used structures in the coal industry. They are of great significance for achieving rapid, efficient, and safe unloading and storage of coal. Arch breakers and blockage clearers (also known as arch breakers, air cannons, blockage clearers, etc.) are devices specifically designed to solve problems such as arching, sticking, and blockage that occur during the storage or transportation of materials in coal unloading trenches. They utilize aerodynamic principles to instantly convert air pressure energy into jet kinetic energy through differential pressure devices and fast exhaust valves, generating strong shock waves or airflows that directly rush into the blockage fault area of the stored bulk materials, thereby overcoming the static friction between materials and restoring the materials to a flowing state.
[0003] A search revealed that Chinese patent CN221939113U discloses a coal unloading trench arch-breaking and blockage-clearing device. This device addresses the issue that in traditional coal unloading trenches, varying coal quality can lead to inferior coal sticking during transport. If left untreated, this sticking quickly forms arches, causing blockages and impacting work progress. Furthermore, if coal sticks to transport equipment and remains untreated for an extended period, the impact of the coal can solidify the arches, making manual cleaning difficult. Therefore, a pushing mechanism is implemented. The powerful airflow of the arch-breaking machine drives the pushing mechanism, and a top block is fixed to the push plate. The pushing action of the top block breaks down the solidified arches, allowing the push plate to remove coal from the working plate surface, thus achieving the purpose of breaking arches and clearing blockages in the coal unloading trench.
[0004] When the aforementioned coal unloading trench arch-breaking and unblocking device is used, it achieves the purpose of breaking arches and clearing blockages in the coal unloading trench. Because coal is usually a fragile material, a lot of particulate dust adheres to its surface. In the existing technology, when breaking arches and clearing blockages inside the coal unloading trench using airflow, the airflow disperses the coal, which easily causes the particulate dust on the coal surface to disperse, resulting in a lot of coal dust floating in the air. This makes it difficult to suppress the coal dust, and the coal dust is easily inhaled by workers through their nasal cavity, which affects their health. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a coal unloading trench arch-breaking and blockage-clearing device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a coal unloading ditch arch breaking and blockage clearing device, including a base plate, an arch breaking device fixedly installed on the upper surface of the base plate, an air outlet pipe being connected through one side of the arch breaking device, and a dust collection component being provided on the upper surface of the base plate.
[0007] The dust collection assembly includes a dust collection shell, which is fixedly connected to the upper surface of the base plate. The dust collection shell is disposed on one side of the arch breaker. A fixing shell is fixedly connected to the upper surface of the dust collection shell. An air inlet pipe is connected through one side of the dust collection shell. A protective plate is fixedly connected to the upper surface of the fixing shell. A suction fan is fixedly installed inside the fixing shell. A fixing plate is fixedly connected to the lower surface of the fixing shell.
[0008] As a further description of the above technical solution:
[0009] A filter cartridge is fixedly connected to the lower surface of the fixed plate, and a stepper motor is fixedly installed on the upper surface of the fixed plate. A lead screw is fixedly connected to the output end of the stepper motor. A moving block is threaded to the outside of the lead screw. An outer scraper and an inner baffle are fixedly connected to the outside of the moving block. The inner baffle is located on one side of the outer scraper.
[0010] As a further description of the above technical solution:
[0011] The filter cartridge has an installation groove on one side, and the movable block is slidably connected inside the installation groove. The bottom of the inner wall of the dust collection shell has two sliding grooves, and sliding rods are slidably connected inside the sliding grooves. Dust collection boxes are fixedly connected to the upper surfaces of the two sliding rods.
[0012] As a further description of the above technical solution:
[0013] A handle is fixedly connected to one side of the dust collection box, and a fixing block is fixedly connected to one side of the dust collection box. A bolt is threaded into the fixing block.
[0014] As a further description of the above technical solution:
[0015] Movable components are provided on both sides of the base plate. Each movable component includes two studs, which are threadedly connected to both sides of the base plate. A knob is fixedly connected to one end of each stud.
[0016] As a further description of the above technical solution:
[0017] Both sides of the base plate are slidably connected to limit rods, one end of which is fixedly connected to a stabilizing plate, and the stud is rotatably connected to the upper surface of the stabilizing plate.
[0018] As a further description of the above technical solution:
[0019] Two rotating rods are rotatably connected to the lower surface of the base plate. Both ends of the rotating rods are fixedly connected to a walking wheel, and a push handle is fixedly connected to one side of the base plate.
[0020] This utility model has the following beneficial effects:
[0021] This invention, through the inclusion of a dust-collecting component, enhances the dust reduction function of the arch-breaking and blockage-clearing device during the arch-breaking and blockage-clearing process. This helps reduce the dust concentration in the air, thereby protecting the health of workers and minimizing dust damage to the equipment, extending its service life. Furthermore, it allows the arch-breaking and blockage-clearing device to operate in a clean environment, improving its blockage-clearing efficiency.
[0022] This invention enhances the mobility of the arch-breaking and blockage-clearing device by incorporating a movable component. This allows the device to be easily moved from one unloading ditch to another, or to different locations within the same unloading ditch, thereby improving the equipment's flexibility and utilization. It also facilitates rapid access to the blockage site for timely clearing, thus increasing work efficiency. Furthermore, it can be easily moved to maintenance areas or repair workshops for maintenance and upkeep, ensuring the normal operation of the equipment and extending its service life. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the stabilizing plate structure proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the dust collection box structure proposed in this utility model;
[0026] Figure 4 This is a schematic diagram of the fixing plate structure proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the filter cartridge structure proposed in this utility model;
[0028] Figure 6 This is a schematic diagram of the cross-sectional structure of the outer scraper proposed in this utility model;
[0029] Figure 7 This is a schematic diagram of the dust collection shell structure proposed in this utility model;
[0030] Figure 8 This is a schematic diagram of the slide bar structure proposed in this utility model.
[0031] Legend:
[0032] 1. Base plate; 2. Arch breaker; 3. Air outlet pipe; 4. Dust collection shell; 5. Fixing shell; 6. Air inlet pipe; 7. Protective plate; 8. Fan; 9. Fixing plate; 10. Filter cartridge; 11. Stepper motor; 12. Lead screw; 13. Moving block; 14. Outer scraper; 15. Inner baffle; 16. Mounting groove; 17. Slide groove; 18. Slide rod; 19. Dust collection box; 20. Handle; 21. Fixing block; 22. Bolt; 23. Stud; 24. Knob; 25. Limiting rod; 26. Stabilizing plate; 27. Rotating rod; 28. Traveling wheel; 29. Push handle. Detailed Implementation
[0033] 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.
[0034] As attached Figure 1-8 As shown, one embodiment of this utility model is provided: a coal unloading ditch arch breaking and blockage clearing device, including a base plate 1, an arch breaking device 2 fixedly installed on the upper surface of the base plate 1, an air outlet pipe 3 connected through one side of the arch breaking device 2, and a dust collection component provided on the upper surface of the base plate 1.
[0035] The dust collection assembly includes a dust collection housing 4, which is fixedly connected to the upper surface of the base plate 1. The dust collection housing 4 is located on one side of the arch breaker 2. A fixing shell 5 is fixedly connected to the upper surface of the dust collection housing 4. An air inlet pipe 6 is connected through one side of the dust collection housing 4. A protective plate 7 is fixedly connected to the upper surface of the fixing shell 5. A suction fan 8 is fixedly installed inside the fixing shell 5. A fixing plate 9 is fixedly connected to the lower surface of the fixing shell 5. The protective plate 7 facilitates protection of one side of the suction fan 8.
[0036] As attached Figure 4 As shown, a filter cartridge 10 is fixedly connected to the lower surface of the fixing plate 9, and a stepper motor 11 is fixedly installed on the upper surface of the fixing plate 9. A lead screw 12 is fixedly connected to the output end of the stepper motor 11, and the lead screw 12 is installed inside the mounting groove 16.
[0037] As attached Figure 6 As shown, the lead screw 12 is externally threaded with a moving block 13. The moving block 13 is externally fixedly connected with an outer scraper 14 and an inner baffle 15. The inner baffle 15 is located on one side of the outer scraper 14. The outer scraper 14 facilitates scraping the dust outside the filter cartridge 10, and the inner baffle 15 helps prevent dust from entering the filter cartridge 10 through the filter holes during the scraping process.
[0038] As attached Figure 5As shown, a mounting groove 16 is provided on one side of the filter cartridge 10, and a moving block 13 is slidably connected inside the mounting groove 16. The moving block 13 is used to drive the outer scraper 14 and the inner baffle 15 to move.
[0039] As attached Figure 7 As shown, two grooves 17 are provided on the bottom of the inner wall of the dust collection housing 4 for mounting the slide bar 18.
[0040] As attached Figure 8 As shown, a slide rod 18 is slidably connected inside the slide groove 17. A dust collection box 19 is fixedly connected to the upper surface of the two slide rods 18. A handle 20 is fixedly connected to one side of the dust collection box 19. A fixing block 21 is fixedly connected to one side of the dust collection box 19. A bolt 22 is threaded inside the fixing block 21. The slide rod 18 facilitates the improvement of the stability of the dust collection box 19 during installation. The bolt 22 facilitates the limiting and fixing of the fixing block 21 and the dust collection box 19 after installation.
[0041] As attached Figure 2 As shown, movable components are provided on both sides of the base plate 1. The movable components include two studs 23, which are threadedly connected to both sides of the base plate 1. A knob 24 is fixedly connected to one end of each stud 23. Limiting rods 25 are slidably connected to both sides of the base plate 1. A stabilizing plate 26 is fixedly connected to one end of each limiting rod 25. The studs 23 are rotatably connected to the upper surface of the stabilizing plate 26. Two rotating rods 27 are rotatably connected to the lower surface of the base plate 1. Both ends of each rotating rod 27 are fixedly connected to a traveling wheel 28. A push handle 29 is fixedly connected to one side of the base plate 1. The studs 23 are used to push the stabilizing plate 26 to move. The stabilizing plate 26 facilitates the support of this utility model. The push handle 29 is used to push the traveling wheel 28 to move.
[0042] Working principle: When using the arch breaker 2 to break up the arch and clear blockage, the suction fan 8 and the stepper motor 11 are turned on. The suction fan 8 uses suction to draw the dust floating in the air into the dust collection shell 4 through the air inlet pipe 6. Then, the filter cartridge 10 filters the air. The filtered air is discharged through the filter cartridge 10 and the protective plate 7, while the trapped dust remains on the outside of the filter cartridge 10. When the output end of the stepper motor 11 rotates, it drives the lead screw 12 to rotate, which drives the moving block 13 to slide inside the mounting groove 16. This causes the inner baffle 15 and the outer scraper 14 to move together. Under the obstruction of the inner baffle 15, the outer scraper 14 scrapes the impurities and dust adhering to the outside of the filter cartridge 10, thereby reducing the blockage of the filter cartridge 10. The scraped dust will fall into the dust collection box 19. Then, the bolt 22 is unscrewed and the handle 20 is pulled to remove the dust collection box 19 from the inside of the dust collection shell 4, making it easy to discharge the dust collected in the dust collection box 19.
[0043] When it is necessary to move the arch breaker 2, push the push handle 29 to drive the base plate 1 to move under the action of the rotating rod 27 on the rotating wheels 28. This causes the arch breaker 2 to move. When it moves to the appropriate position, turn the knob 24 to make the stud 23 rotate on the base plate 1. This causes the stabilizing plate 26 to move down when the limiting rod 25 slides on both sides of the base plate 1. When the position of the stabilizing plate 26 moves beyond the lowest surface of the wheels 28, it is easy to fix the device after it has been moved.
[0044] 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 coal unloading trench arch-breaking and blockage-clearing device, comprising a base plate (1), characterized in that: An arch breaker (2) is fixedly installed on the upper surface of the base plate (1), and an air outlet pipe (3) is connected through one side of the arch breaker (2). A dust collection component is provided on the upper surface of the base plate (1). The dust collection assembly includes a dust collection shell (4), which is fixedly connected to the upper surface of the base plate (1). The dust collection shell (4) is located on one side of the arch breaker (2). A fixing shell (5) is fixedly connected to the upper surface of the dust collection shell (4). An air inlet pipe (6) is connected through one side of the dust collection shell (4). A protective plate (7) is fixedly connected to the upper surface of the fixing shell (5). A suction fan (8) is fixedly installed inside the fixing shell (5). A fixing plate (9) is fixedly connected to the lower surface of the fixing shell (5).
2. The coal unloading trench arch-breaking and blockage-clearing device according to claim 1, characterized in that: A filter cartridge (10) is fixedly connected to the lower surface of the fixed plate (9), and a stepper motor (11) is fixedly installed on the upper surface of the fixed plate (9). A lead screw (12) is fixedly connected to the output end of the stepper motor (11). A moving block (13) is threadedly connected to the outside of the lead screw (12). An outer scraper (14) and an inner baffle (15) are fixedly connected to the outside of the moving block (13). The inner baffle (15) is located on one side of the outer scraper (14).
3. The coal unloading trench arch-breaking and blockage-clearing device according to claim 2, characterized in that: The filter cartridge (10) has an installation groove (16) on one side. The moving block (13) is slidably connected inside the installation groove (16). The bottom of the inner wall of the dust collection shell (4) has two sliding grooves (17). The sliding rods (18) are slidably connected inside the sliding grooves (17). The upper surfaces of the two sliding rods (18) are fixedly connected to dust collection boxes (19).
4. The coal unloading trench arch-breaking and blockage-clearing device according to claim 3, characterized in that: A handle (20) is fixedly connected to one side of the dust collection box (19), and a fixing block (21) is fixedly connected to one side of the dust collection box (19). A bolt (22) is threadedly connected to the inside of the fixing block (21).
5. The coal unloading trench arch-breaking and blockage-clearing device according to claim 1, characterized in that: The base plate (1) is provided with a moving component on both sides. The moving component includes two studs (23). The two studs (23) are threadedly connected to both sides of the base plate (1). A knob (24) is fixedly connected to one end of the studs (23).
6. The coal unloading trench arch-breaking and blockage-clearing device according to claim 5, characterized in that: Both sides of the base plate (1) are slidably connected to limit rods (25), one end of the limit rod (25) is fixedly connected to a stabilizing plate (26), and the stud (23) is rotatably connected to the upper surface of the stabilizing plate (26).
7. The coal unloading trench arch-breaking and blockage-clearing device according to claim 1, characterized in that: Two rotating rods (27) are rotatably connected to the lower surface of the base plate (1). Both ends of the rotating rods (27) are fixedly connected to walking wheels (28), and a push handle (29) is fixedly connected to one side of the base plate (1).
Citation Information
Patent Citations
Arch breaking and blockage clearing device for coal unloading ditch
CN221939113U