Automatic wetting and dust falling device for raw coal sorting

Abstract

The utility model discloses an automatic wetting dust-falling device for raw coal sorting, which comprises a coal machine bin, a loading plate is fixedly connected to the peripheral surface of the coal machine bin, and a conveying belt is fixedly mounted at the top of the loading plate. The driving motor drives the threaded rod and the moving block to move, movement of the flexible dustproof net is achieved, dust splashed by raw coal is effectively blocked by means of tension of the flexible dustproof net and sliding of the supporting frame, and health and safety of surrounding workers are protected; meanwhile, dust splashed by the raw coal is sprayed through a spray head on the lower side of the supporting frame, and the influence of the dust on the environment and workers is further reduced; the uniform moisture content in raw coal is detected through the moisture content sensor and the wetting uniformity sensor, clear water is uniformly sprayed into the coal machine bin through the external water pump and the second spray head according to the detection result, accurate control over the moisture of the raw coal is achieved, and the processing efficiency and the product quality of the coal machine are improved.

Description

Technical Field

[0001] This utility model relates to the field of spray dust suppression technology, specifically to an automatic wetting and dust suppression device for raw coal sorting. Background Technology

[0002] During coal transportation, raw coal contains a large amount of dust, which generates a significant amount of dust in the coal transport tunnels. This dust often produces static electricity, which can easily harm the coal transportation process. The dust is not only abundant but also causes severe dust pollution, resulting in the unorganized emission of particulate matter and putting considerable pressure on the environment. Therefore, in order to effectively control coal dust, automatic spray dust suppression devices are now widely used to treat coal dust.

[0003] However, although automatic spray dust suppression devices can reduce coal dust to some extent, a large amount of dust still rises from above the conveyor, making it difficult to effectively avoid posing a threat to the health of surrounding workers. Utility Model Content

[0004] To solve the above-mentioned technical problems, an automatic wet dust suppression device for raw coal sorting is provided. This technical solution solves the problem mentioned in the background technology that although the automatic spray dust suppression device can reduce coal dust to a certain extent, a large amount of dust is still raised from above the conveying device, which is difficult to completely avoid posing a threat to the health of surrounding workers.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An automatic wetting and dust suppression device for raw coal sorting includes a coal hopper. A load-bearing plate is fixedly connected to the outer periphery of the coal hopper. A conveyor belt is fixedly installed on the top of the load-bearing plate. Protective plates are fixedly connected to both the front and rear sides of the conveyor belt. Fixed frames are fixedly connected to the outer sides of both protective plates. A moving mechanism is provided inside each fixed frame. A fixed bracket is fixedly connected to the top of both fixed frames. A flexible dustproof net is provided above the conveyor belt. Several sets of support frames are fixedly connected to the outer surface of the flexible dustproof net. A nozzle is fixedly installed on both the front and rear sides of the bottom of the support frame. A control box is fixedly installed on the top of the coal hopper. A rotating mechanism is provided inside the coal hopper. Moisture content sensors and wetting uniformity sensors are distributed on opposite sides of the inner wall of the coal hopper.

[0007] Preferably, the moving mechanism includes a threaded rod rotatably connected inside the fixed frame, a drive motor is fixedly installed on the right side of the fixed frame, the output end of the drive motor extends into the interior of the fixed frame and is fixedly connected to one end of the threaded rod, a moving block is threadedly connected to the outer circumferential surface of the threaded rod, and a sliding groove is provided at the bottom of the fixed frame.

[0008] Preferably, a slider is slidably connected inside the second slide groove, the top of the slider is fixedly connected to the bottom of the moving block, a through groove is provided on the top of the fixed frame, and movable frames are fixedly connected to the tops of the moving blocks on both sides, and the movable frames slide in the through groove.

[0009] Preferably, the rotating mechanism includes a second drive motor fixedly installed on the top of the coal mining machine hopper. The output end of the second drive motor extends into the interior of the coal mining machine hopper and is fixedly connected to a first gear. The outer circumferential surface of the first gear is meshed with a second gear. The second gear is rotatably connected to the bottom of the water inlet pipe. A second nozzle is fixedly installed at the bottom of the second gear and is connected to the water inlet pipe.

[0010] Preferably, a sliding groove is provided on the outer side of each of the two protective plates, and a slider is slidably connected inside the sliding groove. The support frame is fixedly connected to the sliders on both sides.

[0011] Preferably, both ends of the flexible dustproof net are fixedly connected to the movable frame and the fixed frame.

[0012] Preferably, a discharge ramp is provided on the left side of the conveyor belt, and a feed inlet adapted to the discharge ramp is provided on the top of the coal mining machine hopper.

[0013] Compared with the prior art, this utility model provides an automatic wetting and dust suppression device for raw coal sorting, which has the following beneficial effects:

[0014] 1. This utility model achieves the movement of the flexible dustproof net by driving the threaded rod and the moving block through the drive motor. By utilizing the tension of the flexible dustproof net and the sliding of the support frame, it effectively blocks the dust splashed from the raw coal, protecting the health and safety of the surrounding workers. At the same time, the dust splashed from the raw coal is sprayed by the nozzle on the lower side of the support frame, further reducing the impact of dust on the environment and workers.

[0015] 2. This utility model detects the uniform moisture content inside the raw coal using a moisture content sensor and a wetting uniformity sensor. Based on the detection results, clean water is evenly sprayed into the coal machine's hopper using an external water pump and nozzle 2, thereby achieving precise control of the moisture content of the raw coal and improving the processing efficiency and product quality of the coal machine. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the conveyor belt of this utility model;

[0018] Figure 3This is a three-dimensional structural diagram of the fixed frame of this utility model;

[0019] Figure 4 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0020] Figure 5 For the present utility model Figure 2 Enlarged view of a portion of point B in the middle;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the flexible dustproof net of this utility model;

[0022] Figure 7 This is a three-dimensional structural diagram of the support frame of this utility model;

[0023] Figure 8 This is a three-dimensional structural diagram of the coal mining silo of this utility model;

[0024] Figure 9 This is a three-dimensional cross-sectional view of the internal structure of the coal mining machine hopper of this utility model.

[0025] The numbers on the map are:

[0026] 1. Coal mining machine hopper; 101. Feed inlet;

[0027] 2. Load-bearing platform; 3. Conveyor belt;

[0028] 4. Protective plate; 401. Slide groove one;

[0029] 5. Fixed frame; 501. Through groove; 502. Slide groove II;

[0030] 6. Moving mechanism; 601. Threaded rod; 602. Drive motor one; 603. Moving block; 604. Slider one; 605. Movable frame;

[0031] 7. Fixture; 8. Flexible dustproof net; 9. Support frame; 10. Slider II; 11. Nozzle I; 12. Material feeding slant; 13. Control box;

[0032] 14. Rotating mechanism; 1401. Drive motor II; 1402. Gear I; 1403. Gear II; 15. Nozzle II; 16. Moisture content sensor; 17. Wetness uniformity sensor. Detailed Implementation

[0033] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0034] Please refer to Figures 1 to 9As shown, an automatic wet dust suppression device for raw coal sorting includes a coal hopper 1. A load-bearing plate 2 is fixedly connected to the outer periphery of the coal hopper 1. A conveyor belt 3 is fixedly installed on the top of the load-bearing plate 2. Protective plates 4 are fixedly connected to both the front and rear sides of the conveyor belt 3. Fixed frames 5 are fixedly connected to the outer sides of both protective plates 4. A moving mechanism 6 is provided inside each fixed frame 5. A fixed bracket 7 is fixedly connected to the top of each fixed frame 5. A flexible dustproof net 8 is provided above the conveyor belt 3. Several sets of support frames 9 are fixedly connected to the outer surface of the flexible dustproof net 8. Nozzles 11 are fixedly installed on both the front and rear sides of the bottom of the support frame 9. The moving mechanism 6 includes a threaded rod 601 rotatably connected inside the fixed frame 5. A drive motor 602 is fixedly installed on the right side of the fixed frame 5. The output end of 02 extends into the interior of the fixed frame 5 and is fixedly connected to one end of the threaded rod 601. The outer circumferential surface of the threaded rod 601 is threadedly connected to the moving block 603. The bottom of the fixed frame 5 is provided with a second sliding groove 502. The sliding block 604 is slidably connected inside the second sliding groove 502. The top of the sliding block 604 is fixedly connected to the bottom of the moving block 603. The top of the fixed frame 5 is provided with a through groove 501. The tops of the moving blocks 603 on both sides are fixedly connected to the movable frame 605. The movable frame 605 slides in the through groove 501. The outer sides of the protective plates 4 on both sides are provided with a first sliding groove 401. The sliding block 10 is slidably connected inside the first sliding groove 401. The support frame 9 is fixedly connected to the sliding block 10 on both sides. The two ends of the flexible dustproof net 8 are fixedly connected to the movable frame 605 and the fixed frame 7.

[0035] In this scheme, firstly, the two drive motors 602 are turned on, which drive the threaded rod 601 to rotate. The threaded rod 601 drives the moving block 603 to rotate, and then the moving block 603 slides along the direction of the slide groove 502 through the guide of the slider 604. The moving block 603 drives the movable frame 605 to move. When the movable frame 605 drives the flexible dustproof net 8 to move to the left, due to the tension of the flexible dustproof net 8, several support frames 9 can slide in the slide groove 401 through the slider 10 to support the flexible dustproof net 8. Then, the raw coal is poured in from the right side of the conveyor belt 3, and the conveyor belt 3 is turned on to transport the raw coal. At the same time, the nozzles 11 are turned on. The nozzles 11 on the lower side of several sets of support frames 9 can cool down the dust splashed by the raw coal, and the flexible dustproof net 8 can further block the splashed dust to avoid the problem of dust splashed in the raw coal causing harm to the surrounding workers.

[0036] A control box 13 is fixedly installed on the top of the coal mining machine silo 1. A rotating mechanism 14 is installed inside the coal mining machine silo 1. Moisture content sensors 16 and wettability sensors 17 are distributed on opposite sides of the inner wall of the coal mining machine silo 1. The rotating mechanism 14 includes a second drive motor 1401 fixedly installed on the top of the coal mining machine silo 1. The output end of the second drive motor 1401 extends into the interior of the coal mining machine silo 1 and is fixedly connected to a first gear 1402. The outer circumferential surface of the first gear 1402 is meshed with a second gear 1403. The second gear 1403 is rotatably connected to the bottom of the water inlet pipe. A second nozzle 15 is fixedly installed at the bottom of the second gear 1403 and is connected to the water inlet pipe. A discharge ramp 12 is provided on the left side of the conveyor belt 3, and a feed inlet 101 adapted to the discharge ramp 12 is opened on the top of the coal mining machine silo 1.

[0037] In this scheme, when the raw coal is driven by the conveyor belt 3, passes through the feeding inclined plate 12, and slides down into the coal machine hopper 1 through the feed inlet 101, the moisture content sensor 16 and the wettability sensor 17 will detect the uniform moisture content inside the raw coal and send the moisture content data to the control box 13. The control box 13 will start the external water pump (not shown in the figure) according to the moisture content and spray clean water into the coal machine hopper 1 through the water inlet pipe and the second nozzle 15. At the same time, the second drive motor 1401 will be turned on. The second drive motor 1401 will drive the gear 1402 to rotate, and then drive the second nozzle 15 to rotate through the meshing gear 1403. Then, under the action of centrifugal force, the clean water will be evenly discharged until the moisture content of the raw coal reaches the standard.

[0038] The working principle and usage process of this device are as follows: First, turn on the two drive motors 602. Drive motor 602 drives the threaded rod 601 to rotate, and the threaded rod 601 drives the moving block 603 to rotate. Then, guided by the slider 604, the moving block 603 slides along the slide groove 502, causing the moving block 603 to move the movable frame 605. When the movable frame 605 moves the flexible dustproof net 8 to the left, due to the tension of the flexible dustproof net 8, several support frames 9 can slide in the slide groove 401 through the slider 10, which can support the flexible dustproof net 8. Next, pour the raw coal from the right side of the conveyor belt 3 and turn on the conveyor belt 3 to transport the raw coal. At the same time, turn on the nozzle 11. The nozzle 11 on the lower side of several sets of support frames 9 can cool down the dust splashed by the raw coal, and the flexible dustproof net 8 can further block the splashed dust, avoiding the problem of dust splashed in the raw coal causing harm to the surrounding workers.

[0039] When the raw coal is driven by the conveyor belt 3, it passes through the feeding inclined plate 12 and slides down into the coal machine hopper 1 through the feed inlet 101. The moisture content sensor 16 and the wettability sensor 17 detect the uniform moisture content inside the raw coal and send the moisture content data to the control box 13. The control box 13 starts the external water pump (not shown in the figure) according to the moisture content and sprays clean water into the coal machine hopper 1 through the water inlet pipe and the second nozzle 15. At the same time, the second drive motor 1401 is turned on. The second drive motor 1401 drives the gear 1402 to rotate, and then drives the second nozzle 15 to rotate through the meshing gear 1403. Under the action of centrifugal force, the clean water is evenly discharged until the moisture content of the raw coal reaches the standard.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic wetting and dust suppression device for raw coal sorting, comprising a coal processing silo (1), characterized in that: A load-bearing plate (2) is fixedly connected to the outer periphery of the coal mining silo (1). A conveyor belt (3) is fixedly installed on the top of the load-bearing plate (2). Protective plates (4) are fixedly connected to both the front and rear sides of the conveyor belt (3). Fixed frames (5) are fixedly connected to the outer sides of both protective plates (4). A moving mechanism (6) is provided inside the fixed frame (5). A fixed frame (7) is fixedly connected to the top of both fixed frames (5). A flexible dustproof net (8) is provided above the conveyor belt (3). Several sets of support frames (9) are fixedly connected to the outer surface of the flexible dustproof net (8). A nozzle (11) is fixedly installed on both the front and rear sides of the bottom of the support frame (9). A control box (13) is fixedly installed on the top of the coal mining silo (1). A rotating mechanism (14) is provided inside the coal mining silo (1). Moisture content sensors (16) and moisture uniformity sensors (17) are distributed on opposite sides of the inner wall of the coal mining silo (1).

2. The automatic wetting and dust suppression device for raw coal sorting according to claim 1, characterized in that: The moving mechanism (6) includes a threaded rod (601) rotatably connected inside the fixed frame (5). A drive motor (602) is fixedly installed on the right side of the fixed frame (5). The output end of the drive motor (602) extends into the interior of the fixed frame (5) and is fixedly connected to one end of the threaded rod (601). A moving block (603) is threadedly connected to the outer circumferential surface of the threaded rod (601). A sliding groove (502) is provided at the bottom of the fixed frame (5).

3. The automatic wetting and dust suppression device for raw coal sorting according to claim 2, characterized in that: The sliding groove 2 (502) is internally connected to a slider 1 (604), the top of the slider 1 (604) is fixedly connected to the bottom of the moving block (603), the top of the fixed frame (5) is provided with a through groove (501), and the tops of the moving blocks (603) on both sides are fixedly connected to movable frames (605), which slide in the through groove (501).

4. The automatic wetting and dust suppression device for raw coal sorting according to claim 1, characterized in that: The rotating mechanism (14) includes a second drive motor (1401) fixedly installed on the top of the coal hopper (1). The output end of the second drive motor (1401) extends into the interior of the coal hopper (1) and is fixedly connected to a first gear (1402). The outer circumferential surface of the first gear (1402) is meshed with a second gear (1403). The second gear (1403) is rotatably connected to the bottom of the water inlet pipe. The bottom of the second gear (1403) is fixedly installed with a second nozzle (15), which is connected to the water inlet pipe.

5. The automatic wetting and dust suppression device for raw coal sorting according to claim 1, characterized in that: The outer sides of the protective plates (4) on both sides are provided with sliding grooves (401), and sliding blocks (10) are slidably connected inside the sliding grooves (401). The support frame (9) is fixedly connected to the sliding blocks (10) on both sides.

6. The automatic wetting and dust suppression device for raw coal sorting according to claim 1, characterized in that: The two ends of the flexible dustproof net (8) are fixedly connected to the movable frame (605) and the fixed frame (7).

7. The automatic wetting and dust suppression device for raw coal sorting according to claim 1, characterized in that: A feeding sloping plate (12) is provided on the left side of the conveyor belt (3), and a feeding port (101) adapted to the feeding sloping plate (12) is opened at the top of the coal machine hopper (1).

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