A dust removal device for coal mine safety

Abstract

This utility model discloses a dust removal device for coal mine safety, including a support frame, an mounting plate fixedly mounted on the support frame, a water tank on the top surface of the mounting plate, a support pipe fixedly mounted on the outer side of the mounting plate, a water pump connected to the bottom surface of the support pipe, and an adjustment mechanism connected between the water pump and the water tank. The adjustment mechanism includes a connecting sleeve and an adjusting sleeve. A connecting pipe is connected to the outer side of the water tank, and the connecting sleeve is fixed inside the connecting pipe. The two ends of the adjusting sleeve are rotatably connected to the connecting pipe and the connecting sleeve, respectively. A mating sleeve is fixedly mounted inside the adjusting sleeve, and a screw is threadedly connected to the mating sleeve. A connecting block is fixedly mounted at the top of the screw, and a control sleeve is fixedly mounted outside the connecting block. A sealing sleeve is fixedly mounted inside the connecting sleeve, and the sealing sleeve is slidably connected to the control sleeve. A control groove is formed on the outer wall of the control sleeve, and multiple sets of control grooves are provided. When the adjusting sleeve rotates, it drives the mating sleeve to rotate. By changing the sealing area of ​​the sealing sleeve on the control groove, the water flow rate is precisely adjusted.

Description

Technical Field

[0001] This utility model relates to the field of coal mine safety technology, and more specifically, it relates to a dust removal device for coal mine safety. Background Technology

[0002] In underground coal mine operations, including mining, tunneling, transportation, and crushing, dust is a major hazard threatening the health and safety of workers and impacting the quality of the working environment. It is widely present in coal faces, tunneling roadways, transportation corridors, and coal bunker loading and unloading areas. Coal dust not only causes occupational diseases such as pneumoconiosis but can also trigger dust explosions at certain concentrations, resulting in significant casualties and property damage. Therefore, effective dust control measures must be implemented to manage dust concentrations in the working environment. Spray dust suppression technology is the most commonly used and effective dust control method in underground coal mines. By atomizing water into tiny droplets and spraying them into dusty air, the dust is rapidly captured and settled through physical processes such as collision capture, wetting and adsorption, and gravity settling between the droplets and dust particles. However, the characteristics of dust generation vary significantly under different operating conditions. Coal mining machines generate large amounts of dust with high concentrations during coal cutting, dust concentration rises sharply in a short period of time after tunneling and blasting, dust is released intermittently during coal loading, unloading and transfer, and dust concentration in transport roadways is relatively stable but lasts for a long time. These different dust generation characteristics require the dust removal system to be able to flexibly adjust the spray intensity and water consumption according to the actual operating conditions.

[0003] Traditional coal mine spray dust suppression systems primarily employ a fixed-flow design, using a constant-power pump to deliver water to the nozzles for atomization. While this fixed-flow water supply method is simple in structure and reliable in operation, it cannot adapt to the complex and variable dust-generating conditions underground. Insufficient water supply during high-concentration dust-generating stages leads to unsatisfactory dust suppression effects, while excessive water supply during low-concentration or dust-free stages causes water accumulation in roadways, equipment corrosion, and water waste. Especially under conditions of relatively scarce water resources and high drainage costs in coal mines, excessive water use not only increases operating costs but may also affect the underground working environment and equipment safety. Furthermore, the fixed-flow water supply method cannot meet the differentiated requirements for atomization effects based on different spraying distances, working spaces, and dust particle size distributions, making it difficult to achieve precise and efficient dust control goals. Utility Model Content

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a dust removal device for coal mine safety to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a dust removal device for coal mine safety, comprising a support frame, an mounting plate fixedly mounted on the support frame, a water tank mounted on the top surface of the mounting plate, a support pipe fixedly mounted on the outer side of the mounting plate, a water pump connected to the bottom surface of the support pipe, an adjustment mechanism connected between the water pump and the water tank, the adjustment mechanism comprising a connecting sleeve and an adjustment sleeve, a connecting pipe connected to the outer side of the water tank, the connecting sleeve fixed inside the connecting pipe, the two ends of the adjustment sleeve rotatably connecting the connecting pipe and the connecting sleeve respectively, a mating sleeve fixedly mounted inside the adjustment sleeve, a screw threadedly connected to the mating sleeve, a connecting block fixedly mounted at the top of the screw, a control sleeve fixedly mounted outside the connecting block, a sealing sleeve fixedly mounted inside the connecting sleeve, the sealing sleeve and the control sleeve being slidably connected, a control groove being formed on the outer wall of the control sleeve, and multiple sets of control grooves being provided.

[0006] The present invention is further configured such that a nozzle is installed on the bottom surface of the support pipe, and multiple sets of nozzles are provided, which can achieve a more uniform and wider spraying effect, thereby enhancing the coverage and effect of dust removal.

[0007] The present invention is further configured such that a limiting rod is fixedly provided on the outer wall of the connecting block, and multiple sets of the limiting rod are provided, all of which are slidably connected to the cover, to ensure the smooth movement of the connecting block during the adjustment process, thereby improving the adjustment accuracy and the stability of the equipment.

[0008] The present invention is further configured such that an installation ring is fixedly provided on the outer wall of the adjusting sleeve, and a slider is fixedly provided on the outer side of the installation ring. Multiple sets of sliders are provided, and a positioning sleeve is fixedly provided on the outer side of the connecting sleeve. All sets of sliders slide within the positioning sleeve, ensuring stable connection and precise operation of each component during adjustment, and reducing malfunctions and wear.

[0009] The present invention is further configured such that a positioning hole is provided on the outer side of the positioning sleeve, and multiple sets of positioning holes are provided. Positioning blocks are slidably provided on the outer side of each set of sliders, and the multiple sets of positioning blocks abut against the multiple sets of positioning holes respectively, which can achieve precise positioning and adjustment, and enhance the stability and reliability of the adjustment process.

[0010] The present invention is further configured such that each of the multiple sets of positioning blocks and sliders is connected by a push spring, which provides an effective reaction force to ensure that the positioning blocks are firmly positioned and to prevent positional deviation during the adjustment process.

[0011] The present invention is further configured such that the top of the multiple sets of positioning blocks and the outer side of the positioning holes are all arc-shaped. The arc design reduces friction, improves the smooth sliding between components, extends service life and reduces wear.

[0012] The present invention is further configured such that all of the multiple sets of nozzles are atomizing nozzles, which ensures the atomization effect of the water flow, improves the uniformity of water mist distribution, more effectively reduces dust, and enhances dust removal performance.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a dust removal device for coal mine safety, which has the following beneficial effects: 1. This device, through its rationally designed structure, tightly integrates components such as the mounting plate, water tank, water pump, and support pipe, achieving a highly efficient water extraction and transportation system. The water pump draws water from the tank and delivers it to the support pipe, where it is atomized and sprayed through multiple nozzles. This effectively reduces the dust concentration in the coal mine working environment, improves the air quality of the working environment, reduces the harm of harmful dust to workers, and thus significantly improves the safety and comfort of the working process.

[0014] 2. This device is equipped with a precise adjustment mechanism. It uses the relative movement of the adjustment sleeve and the mating sleeve, along with the rotation of the screw, to adjust the water flow and spray intensity. When the adjustment sleeve rotates, it drives the mating sleeve to rotate. By changing the sealing area of ​​the sleeve on the control tank, the water flow is precisely adjusted, thereby achieving the purpose of flow control according to different environmental needs. This design not only improves the flexibility of the equipment but also optimizes the utilization of water resources and reduces waste.

[0015] 3. The device ensures precise control and stability during the adjustment process by incorporating components such as sliders, positioning sleeves, positioning holes, positioning blocks, and push springs. When the adjusting sleeve rotates, the slider slides within the positioning sleeve, and the positioning block engages in the positioning hole, enabling precise positioning of multiple gears. This design ensures stable water flow adjustment. Furthermore, after adjustment stops, the push spring automatically pushes the positioning block to lock the adjusting sleeve position, preventing fluctuations in water flow and ensuring the reliability and ease of operation of the equipment during long-term operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a dust removal device for coal mine safety according to the present invention; Figure 2 This is a schematic diagram of the support tube structure in this utility model; Figure 3 This is a schematic diagram of the adjustment mechanism in this utility model; Figure 4 This is a cross-sectional view of the adjustment mechanism in this utility model; Figure 5 This is a schematic diagram of the slider in this utility model.

[0017] In the diagram: 1. Support frame; 2. Mounting plate; 3. Water tank; 4. Support pipe; 5. Water pump; 6. Connecting sleeve; 7. Adjusting sleeve; 71. Connecting pipe; 8. Mating sleeve; 9. Screw; 10. Connecting block; 11. Control sleeve; 12. Sealing sleeve; 13. Control groove; 14. Nozzle; 15. Limiting rod; 16. Mounting ring; 17. Slider; 18. Positioning sleeve; 19. Positioning hole; 20. Positioning block; 21. Push spring. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figures 1-5 A dust removal device for coal mine safety includes a support frame 1, an mounting plate 2 fixedly mounted on the support frame 1, a water tank 3 mounted on the top surface of the mounting plate 2, a support pipe 4 fixedly mounted on the outer side of the mounting plate 2, a water pump 5 connected to the bottom surface of the support pipe 4, an adjustment mechanism connected between the water pump 5 and the water tank 3, the adjustment mechanism including a connecting sleeve 6 and an adjustment sleeve 7, a connecting pipe 71 connected to the outer side of the water tank 3, the connecting sleeve 6 fixed inside the connecting pipe 71, the two ends of the adjustment sleeve 7 rotatably connecting the connecting pipe 71 and the connecting sleeve 6 respectively, a mating sleeve 8 fixedly mounted inside the adjustment sleeve 7, a screw 9 threadedly connected inside the mating sleeve 8, a connecting block 10 fixedly mounted at the top of the screw 9, a control sleeve 11 fixedly mounted outside the connecting block 10, a sealing sleeve 12 fixedly mounted inside the connecting sleeve 6, the sealing sleeve 12 and the control sleeve 11 slidably connected, and a control groove 13 is provided on the outer wall of the control sleeve 11, with multiple sets of control grooves 13.

[0022] In this embodiment, during use, water is pumped from the water tank 3 by the water pump 5 and delivered to the support pipe 4. Then, it is atomized and sprayed by multiple sets of nozzles 14 to suppress dust. When it is necessary to adjust the water extraction flow rate, the rotating adjustment sleeve 7 drives the mating sleeve 8 to rotate and engage with the screw 9, thereby driving the connecting block 10 to slide along the sealing sleeve 12 through multiple sets of limit rods 15. This causes the sealing sleeve 12 to change the sealing area of ​​multiple sets of control grooves 13, thereby adjusting the flow area of ​​the water flow and regulating the water flow rate.

[0023] Please see Figures 3-5 As a further implementation of the overall equipment: a nozzle 14 is installed on the bottom surface of the support pipe 4, and multiple sets of nozzles 14 are provided.

[0024] A limiting rod 15 is fixedly provided on the outer wall of the connecting block 10. Multiple sets of limiting rods 15 are provided, and all of them are slidably connected to the cover 12. An installation ring 16 is fixedly provided on the outer wall of the adjusting sleeve 7. A slider 17 is fixedly provided on the outer side of the installation ring 16. Multiple sliders 17 are provided. A positioning sleeve 18 is fixedly provided on the outer side of the connecting sleeve 6. Multiple sliders 17 slide within the positioning sleeve 18.

[0025] The positioning sleeve 18 has a positioning hole 19 on its outer side. There are multiple sets of positioning holes 19. Positioning blocks 20 are slidably provided on the outer side of each set of sliders 17. The multiple sets of positioning blocks 20 abut against the multiple sets of positioning holes 19 respectively.

[0026] Each of the multiple positioning blocks 20 and the slider 17 is connected by a push spring 21.

[0027] The top of the multiple positioning blocks 20 and the outer side of the positioning hole 19 are both set to be arc-shaped.

[0028] All nozzles 14 are configured as atomizing nozzles 14.

[0029] More specifically, when the adjusting sleeve 7 rotates, it drives multiple sets of sliders 17 to slide along the positioning sleeve 18, and pushes the positioning blocks 20 through multiple sets of positioning holes 19 to squeeze the push spring 21 and disengage from the positioning holes 19, so that the multiple sets of positioning blocks 20 form a stop movement between multiple sets of positioning grooves. When the adjusting sleeve 7 stops rotating, the push spring 21 pushes the positioning blocks 20 to abut against the positioning holes 19 to position and lock the adjusting sleeve 7.

[0030] In summary, during use or operation of the overall equipment: During use, water is pumped from the water tank 3 by the water pump 5 and delivered to the support pipe 4. Subsequently, multiple sets of nozzles 14 atomize and spray water to suppress dust. When it is necessary to adjust the water flow rate, rotating the adjusting sleeve 7 causes the mating sleeve 8 to rotate and engage with the screw 9, thereby causing the connecting block 10 to slide along the sealing sleeve 12 via multiple sets of limit rods 15. This changes the sealing area of ​​the sealing sleeve 12 on the multiple control slots 13, thereby adjusting the flow area of ​​the water and regulating the water flow rate.

[0031] When the adjusting sleeve 7 rotates, it drives multiple sets of sliders 17 to slide along the positioning sleeve 18. Through multiple sets of positioning holes 19, it pushes the positioning block 20 to squeeze the push spring 21 and disengage from the positioning hole 19, so that the multiple sets of positioning blocks 20 form a stop movement between multiple sets of positioning grooves. When the adjusting sleeve 7 stops rotating, the push spring 21 pushes the positioning block 20 to abut against the positioning hole 19 to position and lock the adjusting sleeve 7.

[0032] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option. In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model. 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 dust removal device for coal mine safety, comprising a support frame (1), characterized in that: A mounting plate (2) is fixedly mounted on the support frame (1). A water tank (3) is mounted on the top surface of the mounting plate (2). A support pipe (4) is fixedly mounted on the outside of the mounting plate (2). A water pump (5) is connected to the bottom surface of the support pipe (4). An adjustment mechanism is connected between the water pump (5) and the water tank (3). The adjustment mechanism includes a connecting sleeve (6) and an adjustment sleeve (7). A connecting pipe (71) is connected to the outside of the water tank (3). The connecting sleeve (6) is fixed inside the connecting pipe (71). The two ends of the adjustment sleeve (7) rotate respectively. Connecting pipe (71) and connecting sleeve (6), adjusting sleeve (7) is fixedly provided with mating sleeve (8), the mating sleeve (8) is internally threaded with screw (9), the top of screw (9) is fixedly provided with connecting block (10), the outside of connecting block (10) is fixedly provided with control sleeve (11), the inside of connecting sleeve (6) is fixedly provided with sealing sleeve (12), sealing sleeve (12) and control sleeve (11) are slidably connected, the outer wall of control sleeve (11) is provided with control groove (13), and multiple sets of control groove (13) are provided.

2. The dust removal device for coal mine safety according to claim 1, characterized in that: The bottom surface of the support tube (4) is equipped with a nozzle (14), and multiple sets of nozzles (14) are provided.

3. A dust removal device for coal mine safety according to claim 2, characterized in that: The outer wall of the connecting block (10) is fixedly provided with a limiting rod (15), and the limiting rod (15) is provided in multiple sets and is slidably connected to the cover (12).

4. A dust removal device for coal mine safety according to claim 3, characterized in that: The adjusting sleeve (7) is fixedly provided with an installation ring (16) on its outer wall. A slider (17) is fixedly provided on the outside of the installation ring (16). Multiple sliders (17) are provided. A positioning sleeve (18) is fixedly provided on the outside of the connecting sleeve (6). Multiple sliders (17) slide inside the positioning sleeve (18).

5. A dust removal device for coal mine safety according to claim 4, characterized in that: The positioning sleeve (18) has a positioning hole (19) on its outer side. There are multiple sets of positioning holes (19). The outer side of each set of sliders (17) is provided with a positioning block (20). The multiple sets of positioning blocks (20) abut against the multiple sets of positioning holes (19).

6. A dust removal device for coal mine safety according to claim 5, characterized in that: Each of the multiple positioning blocks (20) and sliders (17) is connected by a push spring (21).

7. A dust removal device for coal mine safety according to claim 6, characterized in that: The top of the multiple sets of positioning blocks (20) and the outer side of the positioning hole (19) are both set to be arc-shaped.

8. A dust removal device for coal mine safety according to claim 7, characterized in that: All of the above-mentioned nozzles (14) are configured as atomizing nozzles (14).

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