Mine dust removal device and dust removal method

Abstract

This invention discloses a dust removal device and method for mines, belonging to the technical field of dust removal devices. The dust removal device includes a ventilation duct and an impeller located at one end of the ventilation duct. An atomizing component is located on the front side of the impeller. The atomizing component includes a three-way pipe, with atomizing nozzles elastically connected to both branch ends of the three-way pipe via connectors; and a valve body located between the two branch ends of the three-way pipe. In this device, the drive unit continuously rotates between the two sets of atomizing nozzles along with the transmission components, thereby achieving an inspection function. When one atomizing nozzle is blocked, a response is made through the cooperation of a protrusion and the drive unit. The output end of the drive unit, in cooperation with the protrusion, drives the valve stem and valve body to rotate, allowing the high-pressure water entering the three-way pipe to be discharged from the other branch end of the three-way pipe, thus avoiding the dust removal effect being affected by poor atomization.

Description

Technical Field

[0001] This invention relates to the field of dust removal equipment technology, and in particular to a dust removal device and method for mines. Background Technology

[0002] Mining operations generate large amounts of coal dust and rock dust, which not only reduce underground visibility but also easily lead to safety and health problems such as coal dust explosions and pneumoconiosis. Therefore, wet dust collection equipment is widely used in mine roadways and tunneling faces. Existing wet mine dust collection equipment mostly uses axial flow fans in conjunction with atomizing nozzles to draw in and purify dust-laden airflow. After the airflow is moistened by water mist, dust is captured, and then gas-liquid separation is achieved through dehydration components.

[0003] However, in actual use, mine circulating water often contains impurities such as coal slime and rock powder. Coupled with the high humidity and dust environment underground, the atomizing nozzles are prone to clogging over time, resulting in a decrease in water mist atomization effect and dust removal efficiency. Currently, the conventional solution is to manually stop the machine for disassembly, replacement, or cleaning, which affects continuous dust removal operations.

[0004] Therefore, it is necessary to provide a dust removal device and method for mines to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a dust removal device and method for mines to solve the technical problems mentioned in the background section.

[0006] Based on the above ideas, the present invention provides the following technical solution: a dust removal device for mines, comprising a ventilation duct and an impeller disposed at one end of the ventilation duct, wherein an atomizing component is disposed on the front side of the impeller, the atomizing component comprising: A three-way pipe, wherein both branches of the three-way pipe are elastically connected to atomizing nozzles via connectors; The valve body is located between the two branch pipe ends of the tee pipe. A valve stem is installed on the valve body. The valve stem drives the valve body to rotate, so that the high-pressure water in the tee pipe can be discharged from the different branch pipe ends. A transmission component is disposed between two sets of atomizing nozzles. A drive unit is mounted on the transmission component. The drive unit has an input end and an output end. Both the atomizing nozzles and the connector are provided with protrusions. When the atomizing nozzles are blocked and move away from the connector, the gap between two adjacent protrusions increases. This allows the input end of the drive unit to be inserted between the two protrusions and unlock the output end of the drive unit as it rotates with the transmission component. The output end that pops out of the drive unit can cooperate with the protrusion on the outer wall of the valve stem and drive the valve body to rotate.

[0007] As a further aspect of the present invention: the valve body is provided with vertically distributed water inlets and drain outlets, and the water inlets are disposed through the valve body.

[0008] As a further aspect of the present invention: the driving unit includes a fixing block fixed to the transmission component, and the fixing block is provided with a through and elastically fitted push rod, the push rod being the output end of the driving unit; A limiting pin is provided at the fixed block, and the bottom end of the limiting pin is inserted into the insertion hole at the top of the push rod to lock the push rod; an elastic telescopic rod is fixedly connected to the top of the limiting pin, and the two constitute the input end of the drive unit; a sleeve is fixedly connected to the top of the fixed block, the limiting pin passes through the sleeve, and a stop with a slope is provided at the top of the sleeve; two protrusions are fixed to the outer wall of the limiting pin, one protrusion abuts against the end of the stop, and the other protrusion is located at the slope; an inclined tension spring is connected between the fixed block and the elastic telescopic rod, so that the limiting pin has a tendency to rotate along its own circumference and move downward along its own axis.

[0009] As a further aspect of the present invention: the opposite sides of two adjacent sets of convex strips are both set as inclined surfaces. When the drive unit rotates with the transmission component to one side of the convex strip, the elastic telescopic rod contacts the inclined surface and is compressed.

[0010] As a further aspect of the present invention: two sets of protrusions are provided on the outer wall of the valve body, and the line connecting the two sets of protrusions is parallel to the two branch ends of the tee pipe. A guide plate is provided on the outer side of one of the protrusions, and the outer side of the guide plate is set as an inclined guide surface. A convex shaft is provided at one end of the push rod. During the rotation of the drive unit with the transmission component, the convex shaft can move along the guide surface to pull the push rod to reset.

[0011] As a further aspect of the present invention: the elastic telescopic rod includes a sliding rod and a sliding sleeve slidably sleeved on the outside of the sliding rod, and a spring is provided between the sliding rod and the sliding sleeve, the tension spring being connected between the sliding rod and the fixed block.

[0012] As a further embodiment of the present invention: a base is fixed on the three-way pipe, and both ends of the base extend upward to form rings. A driven wheel and a driving wheel are respectively sleeved on the outer side of the two rings, and the transmission component is sleeved between the driving wheel and the driven wheel.

[0013] As a further aspect of the present invention: a servo motor is installed on the three-way pipe, and a driving component is connected to the output end of the servo motor, with the driving component and the drive wheel being connected by transmission.

[0014] As a further aspect of the present invention, the driving component and the drive wheel are connected by a belt drive or by a gear set drive.

[0015] A dust removal method using the aforementioned mine dust removal equipment includes the following steps: driving an impeller to rotate and drawing dust-laden gas from the mine into a ventilation duct; spraying water mist through atomizing nozzles to ensure full contact between the dust-laden gas and the water mist, thereby achieving dust wetting and collection; when one of the atomizing nozzles becomes clogged, a transmission component drives a drive unit to rotate a valve body, switching the high-pressure water in the three-way pipe to another atomizing nozzle to ensure continuous dust removal operations.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In this device, the drive unit rotates continuously between the two sets of atomizing nozzles along with the transmission components, thereby achieving the function of inspection. When one of the atomizing nozzles is blocked, it can respond through the cooperation of the protrusion and the drive unit. The output end of the drive unit and the protrusion cooperate to drive the valve stem and valve body to rotate, so that the high-pressure water entering the three-way pipe can be discharged from the other branch end of the three-way pipe, thereby avoiding the dust removal effect being affected by poor atomization. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positions of the atomizing nozzle and the impeller of the present invention; Figure 3 This is a schematic diagram of the connection structure between the three-way pipe and the atomizing nozzle of the present invention; Figure 4 This is the present invention. Figure 3 A magnified structural diagram at point A; Figure 5 This is the present invention. Figure 3 A magnified structural diagram at point B; Figure 6 This is a schematic diagram of the elastic connection structure between the atomizing nozzle and the connector of the present invention; Figure 7 This is the present invention. Figure 6 A magnified structural diagram at point C; Figure 8 This is a cross-sectional view of the tee pipe of the present invention; Figure 9 This is a schematic diagram showing the alignment of the valve body of the present invention with the branch end of the tee pipe; Figure 10 This is a schematic diagram of the valve body of the present invention rotating one revolution and aligning with the other branch end on the tee pipe; Figure 11 This is a schematic diagram of the connection structure between the push rod and the fixing block of the present invention.

[0019] In the diagram: 1. Air duct; 2. Impeller; 3. T-pipe; 301. Connector; 4. Water inlet pipe; 5. Atomizing nozzle; 6. Connecting plate; 601. Raised strip; 6011. Inclined surface; 602. Guide rod; 7. Driving component; 8. Guide plate; 801. Guide surface; 9. Valve stem; 901. Protrusion; 10. Limit pin; 1001. Protrusion; 11. Sleeve; 12. Stop component; 1201. Slope; 13. Elastic telescopic rod; 14. Push rod; 1401. Raised shaft; 1402. Insertion hole; 1403. Wing plate; 15. Fixing block; 16. Tension spring; 17. Transmission component; 18. Locking pin; 19. Driven wheel; 20. Base; 21. Driving wheel; 22. Valve body; 2201. Water inlet; 2202. Drain outlet. Detailed Implementation

[0020] like Figures 1-11 As shown, a mine dust removal device mainly employs wet dust collection to purify dust-laden airflow in the mine operating area. It can be installed on a tunneling machine or a fixed support in the roadway. The device consists of a ventilation duct 1 and an axial flow fan located at one end of the ventilation duct 1. An atomizing component is located on the front side of the impeller 2 of the axial flow fan, and multiple sets of guide plates are located on the outer casing of the fan. During operation, the axial flow fan draws dust-laden gas from the mine into the ventilation duct 1, and the atomizing component simultaneously sprays water mist, ensuring thorough contact and wetting of the dust particles in the airflow. A centrifugal dehydration component is located at the end of the ventilation duct 1 furthest from the axial flow fan, which separates the dust-liquid mixture formed by wetting, removing the dust from the airflow. The purified airflow is then discharged, and the separated dust-laden wastewater is collected, settled, and recycled. The above are all conventional technical methods of wet dust collectors; other structural and working principles will not be elaborated upon here.

[0021] The atomizing component includes a three-way pipe 3 and a water inlet pipe 4 connected thereto. Figures 1-3 As shown, the water inlet pipe 4 is installed through the air duct 1, and one end of the water inlet pipe 4 is connected to the main pipe end of the three-way pipe 3. Both branch pipe ends of the three-way pipe 3 are connected to the connector 301, and the connector 301 is connected to the atomizing nozzle 5. External high-pressure water enters the three-way pipe 3 through the water inlet pipe 4 and is sprayed out by the atomizing nozzle 5 to achieve the wetting and capture of dust in the airflow.

[0022] In actual operation, due to the high dust concentration in the mine and the presence of incompletely settled coal slime, rock powder, and other impurities in the circulating water, the atomizing nozzles 5 are easily clogged, preventing the water mist from forming properly and directly reducing the dust removal effect. Therefore, this device is equipped with two sets of atomizing nozzles 5: one set for normal operation and the other for standby. Optionally, the standby atomizing nozzle 5 can be equipped with a dust cover. The dust cover is connected to the atomizing nozzle 5 by adhesive or hinge. When the standby atomizing nozzle 5 is activated and water is supplied, the dust cover can automatically detach under high-pressure water pressure, ensuring normal atomization.

[0023] CombinationFigures 3-11 As shown, the three-way pipe 3 is equipped with a spherical valve body 22 and a valve stem 9 fixedly connected to the valve body 22. By rotating the valve body 22, high-pressure water can be controlled to be discharged from different branch pipe ends of the three-way pipe 3. Specifically, as shown... Figures 8-11 As shown, the tee pipe 3 has a spherical chamber for installing the valve body 22. The valve body 22 has a water inlet 2201 and a drain outlet 2202 that are perpendicular to each other, wherein the water inlet 2201 penetrates through the valve body 22. Combined with... Figures 9-10 In the initial state, one inlet 2201 of the valve body 22 is aligned with the main pipe end of the three-way pipe 3, and the drain outlet 2202 is aligned with one of the branch pipe ends; when the valve stem 9 drives the valve body 22 to rotate 180°, the other inlet 2201 of the valve body 22 is aligned with the main pipe end, and the drain outlet 2202 is aligned with the other branch pipe end, thereby completing the water supply switching of the atomizing nozzle 5.

[0024] In actual operation, in order to automatically switch the atomizing nozzles 5, both sets of atomizing nozzles 5 in this solution are elastically connected to the connector 301 along their own axial direction, as detailed in the following reference. Figure 3 , Figure 6 As shown, connecting plates 6 are fixedly sleeved on the outer sides of both the connector 301 and the atomizing nozzle 5. Guide rods 602 are fixed at the four corners of the connecting plate 6 installed at the atomizing nozzle 5. The guide rods 602 pass through the connecting plate 6 at the connector 301 and slide with it. A protruding ring is provided at one end of the guide rod 602 that passes through the connecting plate 6. A limiting spring is sleeved on the outer side of the guide rod 602. The limiting spring is located between the protruding ring and the connecting plate 6 (located on the connector 301), thereby making the atomizing nozzle 5 and the connector 301 elastically connected.

[0025] Furthermore, an annular transmission component 17 is provided between the two sets of atomizing nozzles 5, and a drive unit is installed on the transmission component 17. The drive unit can drive the valve stem 9 to rotate as the transmission component 17 rotates, thereby adjusting the position of the valve body 22 so that the high-pressure water entering the three-way pipe 3 can be discharged from different branch pipe ends of the three-way pipe 3. Combination Figure 3As shown, a protrusion 601 is fixedly installed on the connecting plate 6. The protrusion 601 extends upward, allowing the drive unit to engage with the protrusion 601 during rotation with the transmission component 17. Specifically, a gap s is formed between two adjacent protrusions 601. The distance of the gap s is controlled by the axial movement of the atomizing nozzle 5 relative to the connecting head 301. It can be understood that when the atomizing nozzle 5 becomes clogged, under the pressure of high-pressure water, the atomizing nozzle 5 can overcome the elastic force of the limiting spring and move away from the connecting head 301, causing the gap s to widen. The input end of the drive unit can be inserted into the gap s during rotation with the transmission component 17, allowing the output end of the drive unit to pop out and engage with the protrusion 901 on the outer wall of the valve stem 9, thereby driving the valve stem 9 to rotate.

[0026] During the operation of the device, the transmission component 17 is in a rotating state. When the commonly used atomizing nozzle 5 is operating normally, the gap s between the two protrusions 601 is small, making it difficult to insert the input end of the drive unit, while the output end of the drive unit remains locked. As a result, during the rotation of the drive unit with the transmission component 17, its output end can be misaligned with the protrusion 901, and the valve stem 9 and valve body 22 can remain stable, so that the high-pressure water entering the three-way pipe 3 can be kept out from the commonly used atomizing nozzle 5. When the commonly used atomizing nozzle 5 becomes clogged, causing the gap s to increase, the input end of the drive unit can be inserted into the gap s, thereby unlocking the output end of the drive unit. Through cooperation with the protrusion 901 on the outer wall of the valve stem 9, the valve stem 9 and the valve body 22 can be rotated, so that the high-pressure water in the three-way pipe 3 can be discharged from another atomizing nozzle 5 (i.e., the spare atomizing nozzle 5), thereby maintaining the dust removal effect.

[0027] The drive unit includes a fixing block 15 fixed to the transmission component 17. It should be noted that the transmission component 17 can be a belt or chain, etc., and fixing a fixing block 15 to such a transmission component 17 is a conventional technical method in the mechanical field, which will not be elaborated here. Combined with... Figures 3-8 As shown, a push rod 14 is provided at the fixed block 15. The push rod 14 is the output end of the drive unit. Specifically, the push rod 14 passes through the fixed block 15 and is elastically engaged with the fixed block 15. The fixing block 15 is also provided with a limiting pin 10, which is perpendicular to the push rod 14 and its bottom end is inserted into the insertion hole 1402 at the top of the push rod 14 to lock the push rod 14. An elastic telescopic rod 13 is fixed to the limiting pin 10, and the combination of the elastic telescopic rod 13 and the limiting pin 10 can be considered as the input end of the drive unit. A sleeve 11 is fixed to the top of the fixing block 15, and the limiting pin 10 passes through the sleeve 11 and has circumferential and axial degrees of freedom relative to the sleeve 11. Figure 5 ,Figure 7 As shown, a stop 12 is fixed to the top end face of the sleeve 11. One side of the top of the stop 12 is set as a ramp 1201, and two protrusions 1001 are fixed to the outer circular surface of the limiting pin 10. The two protrusions 1001 are symmetrically distributed about the axis of the limiting pin 10. Specifically, one protrusion 1001 is attached to the end of the stop 12 away from the ramp 1201, and the other protrusion 1001 is located at the ramp 1201. An inclined tension spring 16 is connected between the fixing block 15 and the elastic telescopic rod 13. In the initial state, the tension of the elastic telescopic rod 13 by the tension spring 16 causes the limiting pin 10 to have a tendency to rotate along its own circumference and move downward along its own axis. When both sets of protrusions 901 are placed on the top end face of the sleeve 11 and one of the protrusions 901 away from the slope 1201 is attached to the end of the stop member 12, the bottom end of the limiting pin 10 is inserted into the insertion hole 1402 at the top of the push rod 14 and remains stable to lock the push rod 14.

[0028] Combination Figure 6 As shown, the opposite sides of two adjacent sets of protrusions 601 are both set as inclined surfaces 6011. When the drive unit rotates with the transmission component 17 to one side of the protrusion 601, one end of the elastic telescopic rod 13 will contact the inclined surface 6011 on the protrusion 601 and be compressed. When the elastic telescopic rod 13 moves to the gap s, due to the normal operation of the atomizing nozzle 5, the gap s is small and insufficient to allow the end of the elastic telescopic rod 13 away from the limiting pin 10 to be inserted. As the elastic telescopic rod 13 passes through the protrusion 601, the limiting pin 10 can maintain the locked state of the push rod 14.

[0029] When the atomizing nozzle 5 is blocked and moves away from the connector 301, increasing the gap s between two adjacent protrusions 601, the elastic telescopic rod 13 will insert into the gap s when passing between the two adjacent protrusions 601. At this time, when the transmission component 17 rotates and continues to drive the drive unit to move, the elastic telescopic rod 13 is stopped from moving forward by the protrusions 601, and instead drives the limiting pin 10 to overcome the tension of the tension spring 16 and rotate along its own circumference, so that the protrusion 1001 on the outside of the limiting pin 10 can crawl along the ramp 1201 and cause the limiting pin 10 to move away from the push rod 14 along its own axis, so that one end of the limiting pin 10 can be moved out of the insertion hole 1402 and unlock the push rod 14. When the push rod 14 is unlocked and popped out, one end of the push rod 14 can coincide with the protrusion 901 on the outer wall of the valve stem 9 in the path of rotation with the transmission component 17. Thus, the valve stem 9 is driven to rotate through the cooperation of the push rod 14 and the protrusion 901, so that the drain port 2202 on the valve body 22 can be aligned with the other branch pipe end on the three-way pipe 3.

[0030] In this device, the drive unit rotates continuously between the two sets of atomizing nozzles 5 along with the transmission component 17, thereby achieving the function of inspection. When one of the atomizing nozzles 5 is blocked, it can respond through the cooperation of the protrusion 601 and the drive unit. Through the cooperation of the output end of the drive unit and the protrusion 901, the valve stem 9 and the valve body 22 are driven to rotate, so that the high-pressure water entering the three-way pipe 3 can be discharged from the other branch end of the three-way pipe 3, thereby avoiding the dust removal effect being affected by poor atomization.

[0031] In addition, combined Figures 3-4 As shown, two sets of protrusions 901 are provided on the outer wall of the valve body 22, and the two sets of protrusions 901 are symmetrically distributed about the axis of the valve stem 9. Figure 3 As can be seen, the line connecting the two sets of protrusions 901 is parallel to the two branch ends of the tee pipe 3; Furthermore, a guide plate 8 is provided on the outer side of one of the protrusions 901. The guide plate 8 is fixed to the tee pipe 3 by a bracket. The outer surface of the guide plate 8 is set as an inclined guide surface 801, combined with... Figure 5 As shown, a convex shaft 1401 is provided on the top of the push rod 14 and on the side away from the valve stem 9. The convex shaft 1401 is fixedly or rotatably engaged with the push rod 14. During the rotation of the drive unit with the transmission component 17, the convex shaft 1401 can move along the guide surface 801 on the outer side of the guide plate 8. During this process, the pressure of the inclined guide surface 801 on the convex shaft 1401 can pull the push rod 14 to move away from the valve stem 9. Specifically, when the valve stem 9 is rotated 180° by the engagement of the push rod 14 and the protrusion 901, the convex shaft 1401 can move along the guide surface 801 and pull the push rod 14 outward. When the push rod 14 is pulled to the limit position and resets, the convex shaft 1401 is misaligned with the guide surface 801 and the limiting pin 10 can be aligned with the insertion hole 1402 and re-inserted into the insertion hole 1402. This structure allows the push rod 14 and the protrusion 901 to rotate the valve stem 9 by 180° each time, so that the drain port 2202 on the valve body 22 can be aligned with different branch pipe ends on the three-way pipe 3. After the valve stem 9 rotates 180°, the convex shaft 1401 is misaligned with the guide plate 8 and the limiting pin 10 relocks the push rod 14 for the next use.

[0032] Combination Figure 3 As shown, the atomizing nozzle 5 and the connector 301 can be connected by a rubber tube or a metal bellows, ensuring axial movement of the atomizing nozzle 5 relative to the connector 301 while achieving a high-pressure water seal to prevent leakage. Combined with... Figure 3 , Figure 8As shown, a base 20 is fixed on the three-way pipe 3. The base 20 has ring structures at both ends, and the valve stem 9 passes through one of these rings and rotates with it. A driven wheel 19 and a driving wheel 21 are respectively rotatably fitted on the outer sides of the two rings. A transmission component 17 is tensioned between the driving wheel 21 and the driven wheel 19. When the transmission component 17 is a belt, the driven wheel 19 and the driving wheel 21 are pulleys; when the transmission component 17 is a chain, the driven wheel 19 and the driving wheel 21 are sprockets. A servo motor is mounted on the three-way pipe 3. The output end of the servo motor is connected to a drive component 7. The drive component 7 is connected to the driving wheel 21 via a belt or gear set to drive the transmission component 17 to rotate.

[0033] Combination Figure 5 As shown, the elastic telescopic rod 13 includes a sliding rod and a sliding sleeve that is slidably sleeved on the outside of the sliding rod, and a spring is provided between the sliding rod and the sliding sleeve. The tension spring 16 is connected between the sliding rod and the fixed block 15.

[0034] Combination Figure 8 As shown, the valve stem 9 has a groove on its outer wall, and a locking pin 18 is elastically connected to the groove by a spring. The end of the locking pin 18 extending to the outside of the groove has a spherical structure, and the inner wall of the ring on the base 20 has a groove that mates with the locking pin 18. Initially, the spherical end of the locking pin 18 is inserted into the groove, thereby maintaining the stability of the valve stem 9 and the valve body 22. When the push rod 14 and the protrusion 901 cooperate to drive the valve stem 9 to rotate, one end of the locking pin 18 is pressed and can move out of the groove.

[0035] Combination Figure 5 , Figure 11 As shown, the fixing block 15 is provided with a through groove for the push rod 14 to pass through and a pin hole for the limiting pin 10 to pass through. Both sides of the fixing block 15 are provided with sliding grooves that communicate with the through grooves. The wing plate 1403 fixed to the side of the push rod 14 passes through the sliding grooves and slides with them. An elastic element is connected between the side plate fixed to the side of the fixing block 15 and the wing plate 1403. The elastic element can be a spring, so that the push rod 14 and the fixing block 15 are elastically engaged.

[0036] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A dust removal device for mines, comprising a ventilation duct (1) and an impeller (2) disposed at one end of the ventilation duct (1), wherein an atomizing component is disposed on the front side of the impeller (2), characterized in that, The atomizing component includes: The two branches of the three-way pipe (3) are elastically connected to atomizing nozzles (5) via connectors (301); The valve body (22) is located between the two branch ends of the three-way pipe (3). A valve stem (9) is installed on the valve body (22). The valve stem (9) drives the valve body (22) to rotate so that the high-pressure water in the three-way pipe (3) can be discharged from different branch ends. The transmission component (17) is located between two sets of atomizing nozzles (5). A drive unit is installed on the transmission component (17). The drive unit has an input end and an output end. Both the atomizing nozzle (5) and the connector (301) are provided with protrusions (601). When the atomizing nozzle (5) is blocked and moves away from the connector (301), the gap between the two adjacent protrusions (601) increases. This allows the input end of the drive unit to be inserted between the two protrusions (601) and unlock the output end of the drive unit during the rotation of the transmission component (17). The output end that pops out of the drive unit can cooperate with the protrusion (901) on the outer wall of the valve stem (9) and drive the valve body (22) to rotate.

2. The mine dust removal equipment according to claim 1, characterized in that: The valve body (22) is provided with vertically distributed inlet (2201) and outlet (2202), and the inlet (2201) is provided through the valve body (22).

3. The mine dust removal equipment according to claim 1, characterized in that: The drive unit includes a fixed block (15) fixed on the transmission component (17), and a push rod (14) that passes through and is elastically engaged on the fixed block (15). The push rod (14) is the output end of the drive unit. A limiting pin (10) is provided at the fixed block (15). The bottom end of the limiting pin (10) is inserted into the insertion hole (1402) at the top of the push rod (14) to lock the push rod (14). An elastic telescopic rod (13) is fixedly connected to the top of the limiting pin (10), and the two constitute the input end of the drive unit. A sleeve (11) is fixedly connected to the top of the fixed block (15). The limiting pin (10) is set through the sleeve (11), and the top of the sleeve (11) is provided with a ramp ( The stop (12) of the 1201); two protrusions (1001) are fixed on the outer wall of the limiting pin (10), one protrusion (1001) abuts against the end of the stop (12), and the other protrusion (1001) is located at the slope (1201); an inclined tension spring (16) is connected between the fixing block (15) and the elastic telescopic rod (13), so that the limiting pin (10) has a tendency to rotate along its own circumference and move downward along its own axis.

4. A mine dust removal device according to claim 3, characterized in that: The opposite sides of two adjacent sets of protrusions (601) are both set as inclined surfaces (6011). When the drive unit rotates with the transmission component (17) to the side of the protrusion (601), the elastic telescopic rod (13) contacts the inclined surface (6011) and is compressed.

5. A mine dust removal device according to claim 4, characterized in that: The valve body (22) has two sets of protrusions (901) on its outer wall. The line connecting the two sets of protrusions (901) is parallel to the two branches of the three-way pipe (3). One of the protrusions (901) has a guide plate (8) on its outer side. The outer side of the guide plate (8) is set as an inclined guide surface (801). One end of the push rod (14) has a convex shaft (1401). During the rotation of the drive unit with the transmission component (17), the convex shaft (1401) can move along the guide surface (801) to pull the push rod (14) back to its original position.

6. A mine dust removal device according to claim 3, characterized in that: The elastic telescopic rod (13) includes a sliding rod and a sliding sleeve that is slidably sleeved on the outside of the sliding rod, and a spring is provided between the sliding rod and the sliding sleeve. The tension spring (16) is connected between the sliding rod and the fixed block (15).

7. A mine dust removal device according to claim 1, characterized in that: A base (20) is fixed on the three-way pipe (3). Both ends of the base (20) extend upward to form rings. A driven wheel (19) and a driving wheel (21) are respectively sleeved on the outer side of the two rings. The transmission component (17) is sleeved between the driving wheel (21) and the driven wheel (19).

8. A mine dust removal device according to claim 7, characterized in that: A servo motor is installed on the three-way pipe (3), and the output end of the servo motor is connected to a drive unit (7). The drive unit (7) is connected to the drive wheel (21) for transmission.

9. A mine dust removal device according to claim 8, characterized in that: The drive unit (7) is connected to the drive wheel (21) via a belt drive or a gear drive.

10. A dust removal method using a mine dust removal device as described in any one of claims 1-9, characterized in that, The process includes the following steps: driving the impeller (2) to rotate, drawing dust-laden gas from the mine into the ventilation duct (1); spraying water mist through the atomizing nozzle (5) to ensure that the dust-laden gas and water mist come into full contact, thereby achieving dust wetting and collection; when one of the atomizing nozzles (5) becomes blocked, the transmission component (17) drives the drive unit to rotate, driving the valve body (22) to rotate, switching the high-pressure water in the three-way pipe (3) to another atomizing nozzle (5) to ensure that the dust removal operation is carried out continuously.

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