Coal screening equipment for coal mining
By using a power component to drive a rotating rod and a cam to impact the connecting frame, combined with an industrial vacuum cleaner to handle dust, the problem of dust pollution and low efficiency in traditional coal screening equipment is solved, achieving efficient screening, automated dust handling, and convenient maintenance.
Patent Information
- Application Number
- CN202520437911.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Traditional coal screening equipment generates a lot of dust during operation, which affects the environment and the health of operators. It is also inefficient, consumes a lot of manpower and resources, and is costly.
The high-frequency vibration of the screening box is achieved by using a power component to drive the rotating rod and cam to strike the connecting frame. Combined with an industrial vacuum cleaner to remove dust in real time, the design is compact and easy to maintain.
It enables rapid screening and classification of coal, reduces dust pollution, improves production efficiency, simplifies maintenance processes, enhances safety, and reduces costs.
Smart Images
Figure CN223915932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment technology, and in particular to a coal screening device for coal mining. Background Technology
[0002] In recent years, global energy demand has continued to grow, and coal, as one of the main energy sources, has seen a significant increase in demand. However, the mining and use of coal resources have had a serious impact on the environment, including air pollution and greenhouse gas emissions. Coal screening technology can improve the utilization efficiency of coal resources and reduce environmental pollution.
[0003] Traditional screening equipment generates a large amount of dust during operation, which seriously affects the environment and the health of operators. In addition, some screening equipment requires a lot of manpower, material resources and time, resulting in low production efficiency and high production costs. In order to solve the above problems, this utility model provides a coal screening equipment for coal mining. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coal screening device for coal mining.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A coal screening device for coal mining includes a base plate, a protective box fixedly connected to the middle of the upper surface of the base plate, a mounting frame fixedly connected to the bottom of the protective box, several return springs fixedly connected to both sides of the upper surface of the mounting frame, the upper ends of the several return springs fixedly connected to the same connecting frame, a screening box movably connected inside the connecting frame, a power component inside the protective box, an industrial vacuum cleaner fixedly connected to one side of the upper surface of the base plate, and a top plate fixedly connected to the upper surface of the protective box.
[0007] As a further improvement of this utility model, the power assembly includes two rotating rods rotatably connected inside the protective box. Two cams are fixedly connected to the surface of each of the two rotating rods. Two impact blocks adapted to the cams are fixedly connected to both sides of the connecting frame. A gear disk is fixedly connected to the same end of each of the two rotating rods. The same gear belt is sleeved on the surface of the two gear disks. A drive motor is fixedly connected to one side of the protective box. The power end of the drive motor is fixedly connected to one of the rotating rods.
[0008] As a further improvement of this utility model, the suction end of the industrial vacuum cleaner is fixedly connected to a suction pipe, and the other end of the suction pipe is fixedly connected to the top plate.
[0009] As a further improvement of this utility model, a discharge plate is fixedly connected inside the mounting frame, a discharge port is opened on the front of the protective box, and a collection seat is fixedly connected to the other side of the upper surface of the bottom plate.
[0010] As a further improvement of this utility model, a feeding port is fixedly connected to the upper surface of the top plate, and protective doors are connected to both sides of the front of the protective box by hinges.
[0011] As a further improvement of this utility model, sliding grooves are provided on both sides of the inner wall of the connecting frame, and sliders that are adapted to the sliding grooves are fixedly connected to both sides of the screening box.
[0012] The beneficial effects of this utility model are:
[0013] By incorporating a power assembly, the drive motor rotates two rotating rods during operation. A cam continuously strikes impact blocks on both sides of the connecting frame. The screening box, connected to a return spring via the connecting frame, generates high-frequency vibrations, effectively separating coal of varying sizes. Larger pieces remain in the screening box, while smaller pieces slide smoothly to the discharge plate, achieving rapid coal screening and classification. This allows the device to efficiently screen coal, improving production efficiency. After screening, simply opening the protective door allows the screening box to be removed for cleaning or replacement, simplifying maintenance and enhancing work efficiency.
[0014] By installing an industrial vacuum cleaner, during the screening process, the vacuum cleaner is activated to absorb the dust generated by vibration inside the protective box in real time through the suction pipe. This effectively reduces dust pollution in the working environment, protects the health of operators, maintains the cleanliness of the equipment, and extends its service life.
[0015] In summary, this utility model achieves multiple advantages through innovative design, including efficient coal screening, automated dust treatment, convenient operation and maintenance, compact structure, and strong adaptability. It significantly improves the efficiency and safety of coal screening operations while reducing operating costs and environmental impact. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a coal screening device for coal mining proposed in this utility model.
[0017] Figure 2 This is a schematic diagram of the structure of a screening box for coal screening equipment in coal mining, as proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the structure of a power component for a coal screening equipment in a coal mine, as proposed in this utility model.
[0019] Figure 4 This is a schematic diagram of the back structure of a coal screening device for coal mining proposed in this utility model.
[0020] In the diagram: 1. Base plate, 2. Protective box, 3. Mounting bracket, 4. Return spring, 5. Connecting frame, 6. Screening box, 7. Industrial vacuum cleaner, 8. Top plate, 9. Rotating rod, 10. Cam, 11. Impact block, 12. Gear disk, 13. Gear belt, 14. Drive motor, 15. Suction pipe, 16. Discharge plate, 17. Discharge port, 18. Collection seat, 19. Feeding port, 20. Protective door, 21. Slide groove, 22. Slider. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figures 1-4 A coal screening device for coal mining includes a base plate 1, a protective box 2 fixedly connected to the middle of the upper surface of the base plate 1, a mounting frame 3 fixedly connected to the bottom inside the protective box 2, several return springs 4 fixedly connected to both sides of the upper surface of the mounting frame 3, a common connecting frame 5 fixedly connected to the upper ends of the several return springs 4, a screening box 6 movably connected inside the connecting frame 5, a power component inside the protective box 2, an industrial vacuum cleaner 7 fixedly connected to one side of the upper surface of the base plate 1, and a top plate 8 fixedly connected to the upper surface of the protective box 2.
[0023] In this invention, the power assembly includes two rotating rods 9 rotatably connected inside the protective box 2. Two cams 10 are fixedly connected to the surfaces of both rotating rods 9. Two impact blocks 11, adapted to the cams 10, are fixedly connected to both sides of the connecting frame 5. A gear disk 12 is fixedly connected to the same end of each of the two rotating rods 9. The same gear belt 13 is fitted onto the surfaces of the two gear disks 12. A drive motor 14 is fixedly connected to one side of the protective box 2. The power end of the drive motor 14 is fixedly connected to one of the rotating rods 9. Starting the drive motor 14 drives one of the rotating rods 9 to rotate. This rotating rod 9, through the transmission system of the gear disk 12 and the gear belt 13, effectively drives the other rotating rod 9 to rotate synchronously. The cams 10 mounted on the surfaces of the two rotating rods 9 continuously impact the impact blocks 11 on both sides of the connecting frame 5 during rotation. This impact causes the connecting frame 5 and the screening box 6 it carries to vibrate continuously up and down to screen the coal.
[0024] The industrial vacuum cleaner 7 has a suction pipe 15 fixedly connected to its suction end, and the other end of the suction pipe 15 is fixedly connected to the top plate 8. When the industrial vacuum cleaner 7 is started, it is connected to the inside of the protective box 2 through the suction pipe 15, and sucks up and processes the dust generated by the vibration screening in real time, effectively maintaining the cleanliness and safety of the working environment. The inside of the mounting frame 3 is fixedly connected to the discharge plate 16, and the front of the protective box 2 is provided with a discharge port 17. The other side of the upper surface of the bottom plate 1 is fixedly connected to the collection seat 18. Small coal particles are screened out and slide down along the discharge plate 16, and finally enter the collection seat 18 below through the discharge port 17, completing the collection of fine coal.
[0025] The top plate 8 is fixedly connected to the upper surface of the feeding port 19. The protective doors 20 are connected to both sides of the front of the protective box 2 by hinges. The inner walls of the connecting frame 5 are provided with sliding grooves 21 on both sides. The screening box 6 is fixedly connected with sliders 22 that are compatible with the sliding grooves 21 on both sides. The connecting frame 5 and the screening box 6 are installed together by the setting of the sliding grooves 21 and the sliders 22. The design is simple and reasonable, and it is easy to install and disassemble.
[0026] In use, the drive motor 14 is first started to rotate one of the rotating rods 9. This rotating rod 9, through the gear disc 12 and gear belt 13, drives the other rotating rod 9 to rotate. This causes the two cams 10 on the surfaces of the two rotating rods 9 to continuously strike the two impact blocks 11 on both sides of the connecting frame 5. This impact causes the connecting frame 5 and the screening box 6 it carries to vibrate continuously up and down. Simultaneously, multiple return springs 4 installed below the connecting frame 5 provide the necessary rebound force during vibration, ensuring that the connecting frame 5 and the screening box 6 can return to their original position smoothly and quickly. This maintains a stable vibration screening state. Then, coal is added into the protective box 2 through the feeding port 19. The coal falls into the screening box 6 of the protective box 2. The screening box 6 screens the coal through continuous vibration. Larger coal will remain in the screening box 6, while smaller coal will fall onto the discharge plate 16 and finally slide out of the discharge port 17 to the collection seat 18 to complete the discharge. At the same time, the industrial vacuum cleaner 7 is started and the dust generated by the vibration in the protective box 2 is sucked in through the suction pipe 15. After the screening is completed, the protective door 20 is opened and the screening box 6 inside the connecting frame 5 is taken out to complete the discharge of larger coal.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A coal screening device for coal mining, comprising a base plate (1), characterized in that, A protective box (2) is fixedly connected to the middle of the upper surface of the base plate (1). A mounting frame (3) is fixedly connected to the bottom of the interior of the protective box (2). Several return springs (4) are fixedly connected to both sides of the upper surface of the mounting frame (3). The upper ends of the several return springs (4) are fixedly connected to the same connecting frame (5). A screening box (6) is movably connected inside the connecting frame (5). A power component is provided inside the protective box (2). An industrial vacuum cleaner (7) is fixedly connected to one side of the upper surface of the base plate (1). A top plate (8) is fixedly connected to the upper surface of the protective box (2).
2. The coal screening equipment for coal mining according to claim 1, characterized in that, The power assembly includes two rotating rods (9) rotatably connected inside the protective box (2). Two cams (10) are fixedly connected to the surfaces of the two rotating rods (9). Two impact blocks (11) adapted to the cams (10) are fixedly connected to both sides of the connecting frame (5). A gear disk (12) is fixedly connected to the same end of the two rotating rods (9). The same gear belt (13) is sleeved on the surface of the two gear disks (12). A drive motor (14) is fixedly connected to one side of the protective box (2). The power end of the drive motor (14) is fixedly connected to one of the rotating rods (9).
3. The coal screening equipment for coal mining according to claim 1, characterized in that, The industrial vacuum cleaner (7) has a vacuum tube (15) fixedly connected to its vacuum end, and the other end of the vacuum tube (15) is fixedly connected to the top plate (8).
4. A coal screening device for coal mining according to claim 1, characterized in that, The mounting bracket (3) is fixedly connected to a discharge plate (16), the protective box (2) has a discharge port (17) on the front, and a collection seat (18) is fixedly connected to the other side of the upper surface of the base plate (1).
5. A coal screening device for coal mining according to claim 1, characterized in that, The top plate (8) is fixedly connected to the upper surface of the feeding port (19), and the protective box (2) has protective doors (20) connected to both sides of the front by hinges.
6. A coal screening device for coal mining according to claim 1, characterized in that, The inner walls of the connecting frame (5) are provided with sliding grooves (21) on both sides, and the screening box (6) is fixedly connected with sliders (22) that are compatible with the sliding grooves (21) on both sides.