Dust fall device for coal mine intelligent informatization construction

Abstract

The invention discloses a dust falling device for coal mine intelligent informatization construction, the dust falling device comprises a device main body and a track, the lower surface of the device main body is fixedly connected with a fixing frame, and a spraying dust falling mechanism is arranged in the device main body; the spraying dust falling mechanism comprises a driving shaft, the driving shaft is rotatably connected with the device body through a bearing in a penetrating mode, a light source lamp is fixedly connected to the inner top wall of the fixing frame, a photoresistor is fixedly connected to the inner bottom wall of the fixing frame, and a driving cavity, a main control cavity and a cavity are formed in the device body; the section, located in the driving cavity, of the driving shaft is in interference fit with a vortex impeller. The dust falling device has the advantages that the dust falling device can automatically adjust the spraying time and the spraying amount according to the dust concentration, so that the situation that dust falling is not thorough at the position with the large dust concentration and water resources are wasted due to the fact that excessive water is sprayed at the position with the low dust concentration is effectively avoided, and meanwhile the device is lower in manufacturing cost and more reliable and stable in operation.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining auxiliary devices, and in particular to a dust suppression device for intelligent information construction of coal mines. Background Art

[0002] Coal is one of the main energy sources in our production and life. Coal is a solid combustible mineral that is gradually formed by ancient plants buried underground and undergoing complex biochemical and physicochemical changes. Therefore, coal is often mined underground. In the process of coal mining and production, it will be accompanied by a large amount of fly ash dust and other dust substances. These dust substances float in the air. Workers who are exposed to this dust for a long time are prone to occupational diseases such as pneumoconiosis. At the same time, when the dust concentration reaches a certain value, there will be an explosion risk, which greatly threatens the personal safety of the workers. Therefore, in the process of coal mining and production, dust suppression devices are needed to reduce the dust in the air.

[0003] In the prior art, dust suppression devices often move at a constant speed on a track to spray atomized water for dust suppression, and the travel speed cannot be automatically controlled. The concentration of dust at different locations is different. Moving at a constant speed may result in incomplete dust suppression at locations with higher dust concentrations, while too much water may be sprayed at locations with lower concentrations, resulting in a waste of water resources. In addition, existing dust suppression devices are often driven by motors. The setting of the motor increases the weight of the device itself, resulting in a large amount of energy required for the journey, and also makes the cost of the device higher. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a dust suppression device for intelligent information construction of coal mines.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A dust suppression device for intelligent information construction of coal mines, comprising a device body and a track, wherein a fixing frame is fixedly connected to the lower surface of the device body, and a spray dust suppression mechanism is arranged in the device body;

[0007] The spray dust reduction mechanism includes a driving shaft, which is rotatably connected to the device body through a bearing, a light source lamp is fixedly connected to the top wall of the fixed frame, and a photoresistor is fixedly connected to the bottom wall of the fixed frame. A driving cavity, a main control cavity, and a cavity are provided in the device body. A section of the driving shaft located in the driving cavity has an interference fit with a vortex impeller, and a water inlet pipe and a water outlet pipe are fixedly connected to the device body. One end of the water inlet pipe extends to the outside of the device body and is fixedly connected to a hose, and the other end extends to the driving cavity. One end of the water outlet pipe extends to the driving cavity, and the other end extends to the cavity. Two sliding plates and a resistance block are slidably connected in the main control cavity, and a number of pressure springs are fixedly connected between the sliding plates and the corresponding resistance blocks. Two electromagnets are arranged in the device body, and the side walls of the two sliding plates on the opposite sides are fixedly connected with permanent magnets. The photoresistor is electrically connected to the electromagnet through a wire.

[0008] Furthermore, the spray dust reduction mechanism also includes a groove opened in the track, a gear frame is slidably connected in the groove, one end of the drive shaft located outside the device body extends through the groove and is interference fit with a drive gear, the drive gear is meshed with the gear frame, and the upper surface of the device body is rotatably connected to two guide wheels through bearings, and the guide wheels are against the side walls of the track.

[0009] Furthermore, the spray dust reduction mechanism also includes a plurality of spray pipes, the spray pipes are fixedly connected to the device body, one end of the spray pipe extends into the cavity, and the other end extends to the outside of the device body and is fixedly connected to an atomizing nozzle, an electromagnetic valve is arranged in the spray pipe, a conductive plate is fixedly connected to the side wall of the sliding plate, and a plurality of conductive blocks are fixedly embedded in the bottom wall of the main control cavity, the conductive blocks correspond to the electromagnetic valves one by one, and the conductive blocks and the electromagnetic valves are electrically connected through wires.

[0010] Furthermore, a cleaning mechanism is provided in the device body, and the cleaning mechanism includes a mounting groove opened in the device body, and a cam is interference fit at one end of the drive shaft located in the mounting groove, and an L-shaped plate is slidably connected through the side wall of the fixed frame, and a plurality of reset springs are fixedly connected between the L-shaped plate and the fixed frame, and a section of the L-shaped plate located in the mounting groove abuts against the cam.

[0011] Furthermore, two opposite inner walls of the main control cavity are provided with sliding grooves, the permanent magnet is slidably connected to the device body through the sliding grooves, the cross-sections of the two resistance blocks are arc-shaped, and the side walls on the opposite side of the two resistance blocks are provided with rubber pads.

[0012] Furthermore, the track side wall is provided with a plurality of limiting holes, and a limiting block is slidably connected in the limiting holes, and one end of the limiting block located in the groove is fixedly connected to the gear frame side wall.

[0013] The present invention has the following advantages:

[0014] 1. During the spray dust reduction process, a single beam of light is emitted by the light source lamp and irradiated on the photoresistor. When the light is irradiated on the photoresistor, the light intensity changes with the change of dust concentration in the air, so that the resistance value of the photoresistor is different. Then, the magnetic force generated by the electromagnet is controlled by the resistance value of the photoresistor, and the pressure of the resistance block on the drive shaft is controlled, thereby controlling the friction resistance when the drive shaft rotates, adjusting the rotation speed, and thus adjusting the travel speed of the device. In places with higher concentrations, the travel speed is slowed down and the spraying time is increased. In places with lower concentrations, the normal travel speed is maintained to avoid insufficient dust reduction in places with higher concentrations.

[0015] 2. When the electromagnet generates different magnetic forces to adjust the pressure of the resistance block on the drive shaft, the position of the sliding plate changes, which also changes the position of the conductive plate, so that different numbers of solenoid valves are energized and opened, thereby changing the travel speed of the device at different concentration positions and adjusting the spray volume, ensuring a better dust reduction effect while ensuring that the spray volume is reduced at lower concentrations, thereby avoiding waste of water resources;

[0016] 3. The device is driven to move by the impact force of the water flow from the pump, without the need for an additional motor to drive the device, which greatly reduces the overall weight of the device, greatly reduces the energy required to move the device, and is more energy-efficient. At the same time, it greatly reduces the production cost of the device;

[0017] 4. Through the arrangement of the gear frame and the driving gear, the rotation of the driving gear and the meshing of the gear frame drive the device to move. When the driving gear and the teeth on different sides of the gear frame are meshed, the moving direction of the device automatically changes, so that the device automatically moves back and forth to spray. Compared with the prior art driven by a motor, there is no need to set up a complex control circuit to control the reciprocating motion of the device;

[0018] 5. When the driving shaft rotates the driving device, it drives the cam to rotate, and cooperates with the reset spring to make the L-shaped plate reciprocate continuously. The bristles on its upper surface continuously clean the surface of the light source lamp, thereby preventing dust from adhering to the surface of the light source lamp and affecting its light emission, thereby avoiding inaccurate monitoring results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a dust suppression device for intelligent information construction of coal mines proposed by the present invention;

[0020] Figure 2 for Figure 1 A in the enlarged view;

[0021] Figure 3 for Figure 1 The enlarged view of point B in the figure;

[0022] Figure 4 for Figure 1 Cross-sectional view at CC in ;

[0023] Figure 5 for Figure 1 The cross-sectional view at DD in ;

[0024] Figure 6 for Figure 1 The cross-sectional view at EE in FIG.

[0025] Figure 7 for Figure 1 The cross-sectional view at FF in FIG.

[0026] Figure 8 This is a circuit connection diagram of a solenoid valve in a dust suppression device for intelligent information construction of coal mines proposed by the present invention.

[0027] In the figure: 1 device body, 2 track, 3 fixed frame, 4 light source lamp, 5 photoresistor, 6 drive shaft, 7 drive cavity, 8 vortex impeller, 9 water inlet pipe, 10 water outlet pipe, 11 main control cavity, 12 sliding plate, 13 resistance block, 14 pressure spring, 15 permanent magnet, 16 electromagnet, 17 groove, 18 drive gear, 19 gear frame, 20 limit hole, 21 limit block, 22 guide wheel, 23 cavity, 24 spray pipe, 25 solenoid valve, 26 atomizing nozzle, 27 conductive plate, 28 conductive block, 29 mounting groove, 30 cam, 31 L-shaped plate, 32 reset spring, 33 hose, 34 sliding groove. DETAILED DESCRIPTION

[0028] Reference Figure 1-8 , a dust suppression device for intelligent information construction of coal mines, comprising a device body 1 and a track 2, a fixing frame 3 is fixedly connected to the lower surface of the device body 1, and a spray dust suppression mechanism is arranged in the device body 1;

[0029] The spray dust reduction mechanism includes a driving shaft 6, which is rotatably connected to the device body 1 through a bearing. A light source lamp 4 is fixedly connected to the top wall of the fixed frame 3. The light source lamp 4 can generate a single-beam monochromatic light source. This is a prior art and will not be described in detail here. The fixed frame 3 is relatively long, and the light source lamp 4 and the photoresistor 5 are arranged in the middle of the fixed frame 3, so that the external light source is blocked by the fixed frame 3 to avoid the external light source from affecting the monitoring of the photoresistor 5. The bottom wall of the fixed frame 3 is fixedly connected to the photoresistor 5. The resistance of the photoresistor 5 decreases as the intensity of the light it receives increases. A driving cavity 7, a main control cavity 11, and a cavity 23 are provided in the device body 1. The driving shaft 6 is located in the driving cavity 7. The interference fit of the first section is provided with a vortex impeller 8, and the vortex impeller 8 can rotate under the impact of the water flow. The device body 1 is penetrated and fixedly connected with an inlet pipe 9 and an outlet pipe 10. One end of the inlet pipe 9 extends through the outside of the device body 1 and is fixedly connected with a hose 33. The other end of the hose 33 is connected to an external water supply pump, and the other end extends through the drive cavity 7. One end of the outlet pipe 10 extends through the drive cavity 7, and the other end extends through the cavity 23. Two sliding plates 12 and resistance blocks 13 are slidably connected in the main control cavity 11. A number of pressure springs 14 are fixedly connected between the sliding plates 12 and the corresponding resistance blocks 13. Two electromagnets 16 are arranged in the device body 1. The two sliding plates 12 on the opposite sides are The side walls are fixedly connected with permanent magnets 15. The electromagnet 16 can generate magnetic repulsion on the permanent magnet 15 when it is energized. The photoresistor 5 is electrically connected to the electromagnet 16 through a wire. The light source lamp 4 emits a single beam of light to illuminate the photoresistor 5. When the light passes through the air and encounters coal dust in the air, the light will be scattered when passing through the dust particles. The heat dissipation and absorption of light by the dust will cause the energy of the light to change, thereby causing the attenuation rate of the light to change, and thus causing the intensity of the light that finally reaches the photoresistor 5 to be different. When the dust concentration is greater, the attenuation rate of the light when passing through the air is higher, which makes the light intensity received by the photoresistor 5 weaker, thereby making the resistance value of the photoresistor 5 smaller, and then This increases the magnetic force of the electromagnet 16 and the magnetic repulsion force on the permanent magnet 15, thereby increasing the pressure of the resistance block 13 on the drive shaft 6 and the friction between the two, thereby increasing the resistance to the rotation of the drive shaft 6 and reducing the rotation speed. Ultimately, when the device body 1 passes through this position, the movement speed is reduced, the residence time is longer, and spraying and dust reduction are performed for a longer time. Conversely, when the dust concentration is low, the resistance of the drive shaft 6 is reduced, and the device body 1 maintains a normal movement speed for spraying, so that the device can adjust the spraying time of the area according to the different dust concentrations in different areas, and maintain a normal travel speed in areas with lower concentrations to avoid insufficient dust reduction in areas with higher concentrations.

[0030] The spray dust reduction mechanism also includes a groove 17 formed in the track 2, and a tooth frame 19 is slidably connected in the groove 17. Figure 4As shown, the inner wall of the tooth frame 19 is provided with teeth, and the teeth of the inner wall at both ends are distributed in an arc shape, so that when the driving gear 18 moves to its end, the tooth frame 19 can be arranged to move horizontally by setting the arc-shaped distributed teeth, so that the driving gear 18 is meshed with the teeth on the other side, and the meshing with the teeth on different sides can make the driving gear 18 move in different directions. One end of the driving shaft 6 located outside the device body 1 extends through the groove 17 and is interference-fitted with the driving gear 18. The driving gear 18 is meshed with the tooth frame 19, and the upper surface of the device body 1 is rotatably connected to two The guide wheel 22 is against the side wall of the track 2. The setting of the guide wheel 22 allows the device body 1 to run smoothly along the extension direction of the track 2. The impact force of the pumped water causes the vortex impeller 8 to rotate, thereby causing the drive gear 18 to rotate, and the device body 1 is driven to move by meshing with the inner wall teeth of the gear frame 19. There is no need to set an additional motor in the device body 1 to drive the device body 1 to run, thereby greatly reducing the overall weight of the device body 1, and further reducing the energy required for the movement of the device body 1, which is more energy-saving. At the same time, no motor is required, which greatly reduces the manufacturing cost of the device.

[0031] It is worth mentioning that, by setting the driving gear 18 and the gear frame 19, the device body 1 can automatically reverse when it moves to any end of the track 2. Compared with directly setting the motor drive, there is no need to set a complex control circuit. When the control device moves to the extreme position, the motor direction is changed, which further reduces the manufacturing cost of the device and avoids the use of complex circuit control, greatly reducing the failure rate of the device and making the device more reliable.

[0032] The spray dust reduction mechanism also includes a plurality of spray pipes 24, which are fixedly connected to the device body 1, one end of the spray pipe 24 extends through the cavity 23, and the other end extends through the outside of the device body 1 and is fixedly connected to an atomizing nozzle 26. A solenoid valve 25 is arranged in the spray pipe 24, and the solenoid valve 25 is a normally closed solenoid valve, which is opened by power. A conductive plate 27 is fixedly connected to the side wall of the sliding plate 12, and a plurality of conductive blocks 28 are fixedly embedded in the bottom wall of the main control cavity 11. The conductive blocks 28 correspond to the solenoid valves 25 one by one. In the figure, seven groups of conductive blocks 28, solenoid valves 25, and spray pipes 24 are arranged on the left and right sides respectively, and the number is not limited to seven groups, and the number can be changed according to the actual situation on site. The conductive blocks 28 and the solenoid valves 25 are electrically connected through wires, and the circuit connection relationship is as follows: Figure 8As shown, the conductive block 28 on one side is connected to a solenoid valve 25 on the corresponding side. When the conductive plate 27 contacts the corresponding solenoid valve 25, the corresponding solenoid valve 25 can be powered on and opened, so that under different concentration conditions, the permanent magnet 15 is subjected to different magnetic repulsion forces so that when the pressure of the resistance block 13 on the drive shaft 6 changes, the position of the sliding plate 12 changes accordingly, so that the conductive plate 27 changes with the position of the sliding plate 12 and contacts with different numbers of conductive blocks 28, so that different numbers of solenoid valves 25 are powered on and opened. When the dust concentration is higher, the number of solenoid valves 25 opened is more, and conversely, when the concentration is lower, the number of solenoid valves 25 opened is less, thereby controlling the amount of spray water, and then the device can automatically control the spraying amount according to the dust concentration, effectively avoiding the poor dust reduction effect when the dust concentration is high when the same spraying amount is maintained, and at a low dust concentration, spraying excessive water leads to a waste of water resources.

[0033] A cleaning mechanism is provided in the device body 1, and the cleaning mechanism includes a mounting groove 29 provided in the device body 1, and one end of the driving shaft 6 located in the mounting groove 29 is interference-fitted with a cam 30, and an L-shaped plate 31 is slidably connected to the side wall of the fixed frame 3, and a plurality of reset springs 32 are fixedly connected between the L-shaped plate 31 and the fixed frame 3, and a section of the L-shaped plate 31 located in the mounting groove 29 abuts against the cam 30, and bristles are provided on the upper surface of the horizontal section of the L-shaped plate 31, and the cam 30 is driven to rotate by the rotation of the driving shaft 6, and the cam 30 abuts against the side wall of the vertical section of the L-shaped plate 31. When the cam 30 rotates, the setting of the reset spring 32 is cooperated, so that the L-shaped plate 31 continuously reciprocates, and the surface of the light source lamp 4 is cleaned by the bristles, thereby preventing dust from adhering to the surface of the light source lamp 4 and blocking the light emitted therefrom, thereby affecting the monitoring effect of the photoresistor 5.

[0034] The two opposite inner side walls of the main control cavity 11 are provided with sliding grooves 34, and the permanent magnet 15 is slidably connected to the device body 1 through the sliding grooves 34. The cross-sections of the two resistance blocks 13 are both arc-shaped. Figure 6 As shown, the arc surface of the resistance block 13 just fits against the side wall of the drive shaft 6 to ensure better generation of friction. The side walls on the opposite sides of the two resistance blocks 13 are provided with rubber pads. The rubber pads increase the friction between the resistance block 13 and the drive shaft 6, thereby better controlling the rotational friction resistance of the drive shaft 6 by controlling the pressure of the resistance block 13 on the drive shaft 6, and further better controlling the rotation speed of the drive shaft 6.

[0035] A plurality of limit holes 20 are provided on the side wall of the track 2, and a limit block 21 is slidably connected in the limit hole 20. One end of the limit block 21 located in the groove 17 is fixedly connected to the side wall of the tooth frame 19. By setting the limit block 21 and the limit hole 20, and there is a certain damping in the sliding between the limit block 21 and the limit hole 20, the tooth frame 19 can only move in one direction in the groove 17, thereby ensuring the stable movement of the tooth frame 19 and thus ensuring the stable operation of the device.

[0036] When the present invention is used, spray water is pumped into the water inlet pipe 9 through the hose 33, and the spray water enters the drive chamber 7 through the water inlet pipe 9, impacting the blades of the vortex impeller 8, thereby causing the vortex impeller 8 to rotate, driving the drive shaft 6 that is interference fit with it to rotate, and the drive shaft 6 drives the drive gear 18 that is interference fit with it to rotate, and the drive gear 18 drives the entire device body 1 to move forward through the engagement with the gear frame 19 and its own rotation. During the movement, the spray water passes through the drive chamber 7, enters the cavity 23 through the water outlet pipe 10, and then enters the spray pipe 24, and is atomized and sprayed out through the atomizing nozzle 26 to spray and reduce dust.

[0037] During the movement of the device, the dust concentration in the air of different areas is different. When passing through different areas, when the air of different areas enters the fixed frame 3, the light source lamp 4 emits a single beam of monochromatic light source to irradiate the photoresistor 5. When the light passes through the dust particles, it will be scattered. The heat dissipation and absorption of light by the dust will cause the light energy to change, thereby causing the attenuation rate of the light to change, and then the light intensity that finally reaches the photoresistor 5 is different. When the dust concentration is greater, the attenuation rate of the light when passing through the air is higher, so that the light intensity received by the photoresistor 5 becomes weaker, thereby reducing the resistance value of the photoresistor 5, thereby increasing the magnetic force of the electromagnet 16, and increasing the magnetic repulsion force generated on the permanent magnet 15, so that the force on the sliding plate 12 is greater, compressing the pressure spring 14, thereby increasing the pressure of the resistance block 13 on the drive shaft 6, and the pressure between the resistance block 13 and the drive shaft 6 increases, which can increase the friction resistance between the two. As the friction resistance increases, the rotation speed of the drive shaft 6 decreases, thereby slowing down the movement speed of the device body 1, and spraying for a longer time at a higher concentration.

[0038] At the same time, the greater the force applied to the sliding plate 12, the greater the pressure exerted by the resistance block 13 on the drive shaft 6. As the force applied to the sliding plate 12 increases, its position will also change, so that the conductive plate 27 changes with the position of the sliding plate 12 and contacts with different numbers of conductive blocks 28, so that different numbers of solenoid valves 25 are energized and opened. When the dust concentration is higher, the number of solenoid valves 25 opened is greater, thereby increasing the spraying amount and slowing down the speed, so as to better spray and reduce dust at places with higher concentrations.

[0039] On the contrary, at lower concentrations, the resistance of the drive shaft 6 is reduced, and the device body 1 maintains a normal movement speed for spraying. At the same time, the number of solenoid valves 25 opened is smaller, reducing the amount of spraying water. In conjunction with the change in speed, while ensuring spraying to reduce dust, an appropriate amount of water can be sprayed at lower concentrations to avoid wasting water resources.

[0040] As the device body 1 moves to one end of the track 2, the driving gear 18 meshes with the arc-shaped teeth of the tooth frame 19, causing the tooth frame 19 to slide until the driving gear 18 meshes with the teeth on the other side of the tooth frame 19. At this time, the rotation of the driving gear 18 causes the device body 1 to move in the opposite direction and return to spray, thereby causing the device to automatically perform reciprocating motion to spray and reduce dust.

Claims

1. A dust suppression device for intelligent information construction of coal mines, comprising a device body (1) and a track (2), characterized in that: The lower surface of the device body (1) is connected to a fixing frame (3), and a spray dust reduction mechanism is provided inside the device body (1); The spray dust reduction mechanism comprises a drive shaft (6), the drive shaft (6) is rotatably connected to the device body (1), the top wall of the fixed frame (3) is fixedly connected to a light source lamp (4), the bottom wall of the fixed frame (3) is fixedly connected to a photoresistor (5), the device body (1) is provided with a drive cavity (7), a main control cavity (11), and a cavity (23), a section of the drive shaft (6) located in the drive cavity (7) is interference-fitted with a vortex impeller (8), the device body (1) is penetrated and fixedly connected with a water inlet pipe (9) and a water outlet pipe (10), one end of the water inlet pipe (9) penetrates and extends to the outside of the device body (1) and is fixedly connected to a hose ( 33), the other end of which extends through the driving cavity (7), one end of the water outlet pipe (10) extends through the driving cavity (7), and the other end of the water outlet pipe (10) extends through the cavity (23), two sliding plates (12) and two resistance blocks (13) are slidably connected in the main control cavity (11), a plurality of pressure springs (14) are fixedly connected between the sliding plates (12) and the corresponding resistance blocks (13), two electromagnets (16) are arranged in the device body (1), the side walls of the two sliding plates (12) on the opposite sides are fixedly connected with permanent magnets (15), and the photoresistor (5) is electrically connected to the electromagnet (16) through a wire; The spray dust reduction mechanism also includes a groove (17) provided in the track (2), a tooth frame (19) being slidably connected in the groove (17), one end of the drive shaft (6) located outside the device body (1) extending through the groove (17) and having an interference fit with a drive gear (18), the drive gear (18) being meshed with the tooth frame (19), and two guide wheels (22) being rotatably connected to the upper surface of the device body (1), the guide wheels (22) being in contact with the side wall of the track (2); The spray dust reduction mechanism also includes a plurality of spray pipes (24), the spray pipes (24) are fixedly connected to the device body (1), one end of the spray pipe (24) extends through the cavity (23), and the other end extends through the outside of the device body (1) and is fixedly connected to an atomizing nozzle (26), a solenoid valve (25) is arranged in the spray pipe (24), a conductive plate (27) is fixedly connected to the side wall of the sliding plate (12), and a plurality of conductive blocks (28) are fixedly embedded in the bottom wall of the main control cavity (11), the conductive blocks (28) correspond to the solenoid valves (25) one by one, and the conductive blocks (28) and the solenoid valves (25) are electrically connected through wires; A cleaning mechanism is provided in the device body (1), the cleaning mechanism comprising a mounting groove (29) provided in the device body (1), one end of the drive shaft (6) located in the mounting groove (29) is interference-fitted with a cam (30), an L-shaped plate (31) is slidably connected through the side wall of the fixed frame (3), a plurality of return springs (32) are fixedly connected between the L-shaped plate (31) and the fixed frame (3), and a section of the L-shaped plate (31) located in the mounting groove (29) abuts against the cam (30); The two inner side walls opposite to each other of the main control cavity (11) are provided with sliding grooves (34), the permanent magnet (15) is slidably connected to the device body (1) via the sliding grooves (34), the cross-sections of the two resistance blocks (13) are both arc-shaped, and the side walls on the opposite sides of the two resistance blocks (13) are provided with rubber pads.

2. A dust suppression device for intelligent information construction of coal mines according to claim 1, characterized in that: The side wall of the track (2) is provided with a plurality of limiting holes (20), and a limiting block (21) is slidably connected in the limiting hole (20), and one end of the limiting block (21) located in the groove (17) is fixedly connected to the side wall of the gear frame (19).

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