An automatic monitoring device for the environment of a coal mining area

Abstract

The utility model discloses a kind of coal mining area environment automatic monitoring devices, including elevator, elevator includes mobile station, lifting arm, hydraulic component and lifting platform, the top surface of lifting platform is equipped with monitoring mechanism, monitoring mechanism includes monitoring cylinder, centrifugal impeller is installed in the inside of monitoring cylinder, dust content sensor is respectively equipped at the inlet end and outlet end of monitoring cylinder, the passageway inner wall of monitoring cylinder is respectively connected with atomizing pipe and dust filter, the front of lifting platform is fixed with guide water tank, guide cavity and purification cavity are respectively provided in guide water tank, air suction type monitoring mode is adopted, dust-containing air is forced to be sucked into monitoring cylinder by rear centrifugal impeller, compared analysis is combined inlet and outlet double dust sensor, can judge dust overproof early warning monitoring cylinder integrated atomization dust-settling, dust filtration structure in real time, and cooperate with the inclination of monitoring cylinder and guide water tank part, effectively reduce the dust concentration of discharge air, realize the recycling of dust-settling liquid.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine environment monitoring technical field, concretely is a kind of coal mining area environment automatic monitoring device. BACKGROUND

[0002] Coal mine produces a large amount of dust when mining operation, and personnel in the operation area will be harmed when dust concentration exceeds the standard, and the environment monitoring device of coal mine operation area can collect and analyze key environmental parameters such as gas concentration, temperature and humidity, dust, etc.

[0003] In the prior art, according to the patent publication number "CN220543129U", a geological environment automatic monitoring device is disclosed, which relates to the field of mine geological environment monitoring. The utility model includes a base, a first rectangular groove and a second rectangular groove are formed in the top of the base, the first rectangular groove is located on one side of the second rectangular groove and is in communication with the second rectangular groove, a same shaft is fixedly connected between the inner walls of the two sides of the second rectangular groove, a monitoring assembly for monitoring the geological environment is rotatably connected to the outer wall of the shaft, the utility model can remove the shielding state of the outer cylinder by moving the two first baffles, and the height of the ground penetrating radar can be adjusted in the vertical state, which facilitates the use in various situations, the stability of the outer cylinder can be improved by the clamping of the clamping block and the clamping groove, and the ground penetrating radar can be conveniently stored in the first rectangular groove and the second rectangular groove.

[0004] However, the prior art still has great deficiencies, the traditional monitoring device is usually fixedly installed and cannot dynamically adjust the monitoring height, which leads to inaccurate data reflecting the real distribution of dust at different heights underground, and the monitoring blind area is formed due to the influence of roadway equipment shielding, which cannot be flexibly adjusted or moved, and the passive monitoring mode relies on the natural flow of air, which is difficult to timely warn the risk of dust exceeding the standard, and cannot achieve the effect of dust removal, and the function is relatively single. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of coal mining area environment automatic monitoring device, to solve the problems raised in the above background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic environmental monitoring device for coal mining areas, comprising a lift, the lift including a moving platform, a lifting arm, hydraulic components, and a lifting platform, a monitoring mechanism on the top surface of the lifting platform, the monitoring mechanism including a monitoring cylinder, a centrifugal impeller installed inside the monitoring cylinder, dust content sensors respectively installed at the inlet and outlet ends of the monitoring cylinder, an atomizing tube and a dust filter connected to the inner wall of the channel of the monitoring cylinder, a guide water tank fixed on the front of the lifting platform, and a guide cavity and a purification cavity respectively provided inside the guide water tank.

[0007] As can be seen, the above technical solution adopts an air intake monitoring method. The backward centrifugal impeller forcibly draws dust-laden air into the monitoring cylinder. Combined with the comparative analysis of dual dust sensors at the inlet and outlet, it can judge the dust exceeding the standard in real time and at the same time quantify the filtration efficiency of the filter structure. When the outlet data is abnormal, it can immediately alert the staff. The monitoring cylinder integrates atomized dust suppression and dust filtration structures. With the tilting of the monitoring cylinder and the guide water tank, the dust concentration of the exhaust air is effectively reduced, and the dust suppression liquid is recycled.

[0008] Preferably, the lifting arm and hydraulic components are located between the moving platform and the lifting platform, and the monitoring cylinder is bolted to the lifting platform with a fixed bracket.

[0009] As can be seen, the above technical solution uses a lifting structure to achieve three-dimensional and precise monitoring of underground dust. The monitoring height can be dynamically adjusted to accurately capture the dust concentration distribution in the breathing zone. At the same time, the structure is compact and can adapt to narrow tunnels. It can also be quickly transferred with the pulleys at the bottom of the mobile platform.

[0010] Preferably, the monitoring cylinder is installed at an angle from top to bottom, and a motor is connected to the connecting end of the centrifugal impeller.

[0011] As can be seen, in the above technical solution, tilting the monitoring cylinder allows the atomized liquid and the humidified dust particles to flow together along the tilted surface into the designated position, resulting in a simple structure.

[0012] Preferably, the dust filter element is located between the atomizing tube and the centrifugal impeller, and the spraying direction of the atomizing tube is set towards the inlet air intake direction of the monitoring cylinder.

[0013] As can be seen, in the above technical solution, the direction of the spray atomization is towards the inlet to prevent liquid from entering the rear of the atomization tube and to ensure that the liquid can flow into the guide water tank.

[0014] Preferably, the guide cavity of the guide water tank is inclined from top to bottom, and the inlet end of the monitoring cylinder corresponds to the position of the guide cavity.

[0015] It can be seen that in the above technical solution, the tilting of the guide cavity can concentrate the water flow in the purification chamber of the water tank.

[0016] Preferably, a filter screen is installed between the purification chamber and the guide chamber, and a circulation pipe is provided inside the purification chamber.

[0017] As can be seen, in the above technical solution, the filter screen can filter the liquid, allowing the liquid in the purification chamber to be recycled.

[0018] Compared with the prior art, the beneficial effects of this utility model are: Employing a lifting structure and air intake monitoring method, this system achieves precise three-dimensional monitoring of underground dust. The monitoring height can be dynamically adjusted to accurately capture the dust concentration distribution in the breathing zone. Its compact structure allows it to adapt to narrow tunnels, and the bottom pulleys of the mobile platform enable rapid transfer, significantly improving monitoring coverage and flexibility. A backward centrifugal impeller forces dust-laden air into the monitoring cylinder. Combined with comparative analysis of inlet and outlet dust sensors, it can provide real-time early warnings of excessive dust levels and quantify the filtration efficiency of the filter structure. Abnormal outlet data immediately alerts personnel. The monitoring cylinder integrates atomized dust suppression and dust filtration structures, and the tilting of the monitoring cylinder and guide water tank effectively reduces the dust concentration in the exhaust air, enabling the recycling of dust suppression liquid. The overall structure ensures monitoring accuracy while also offering high-efficiency dust removal and energy-saving environmental benefits. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a perspective view of the present utility model; Figure 3 This is a side view of the present invention; Figure 4 This is a schematic diagram of the inside of the monitoring cylinder of this utility model.

[0020] In the diagram: 1. Elevator; 11. Moving platform; 12. Hydraulic components; 13. Lifting arm; 14. Lifting platform; 2. Monitoring mechanism; 21. Monitoring cylinder; 22. Centrifugal impeller; 23. Motor; 24. Dust filter; 25. Atomizing tube; 26. Fixed bracket; 3. Guide water tank; 31. Filter screen; 32. Guide cavity; 33. Purification cavity; 34. Circulation pipe; 4. Dust content sensor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution: Example 1: An automatic environmental monitoring device for coal mining areas: It includes a hoist 1, which comprises a moving platform 11, a lifting arm 13, hydraulic components 12, and a lifting platform 14. The lifting arm 13 and hydraulic components 12 are located between the moving platform 11 and the lifting platform 14. A fixed bracket 26 is bolted between the monitoring cylinder 21 and the lifting platform 14. Coal mining generates a large amount of dust. When the dust content in the area exceeds the standard, it can easily cause harm to personnel and also easily cause static electricity, leading to fires and other problems. Therefore, personnel working in coal mining areas need to ensure proper ventilation. The monitoring device monitors the dust content in the environment in real time. When the dust content exceeds the standard, it can be dealt with or personnel can be evacuated. The elevator 1 is a scissor lift device, which can control the monitoring mechanism 2 at the top to adjust to different heights. It mainly includes several parts: a moving platform 11, a hydraulic component 12, a lifting arm 13, and a lifting platform 14. The lifting arm 13 has a cross structure. The hydraulic component 12 is a hydraulic cylinder. When the extension end of the hydraulic arm pushes the top lifting arm 13 to move, the lifting arm 13 moves accordingly under the force, thereby completing the monitoring of the lifting platform 14 and the top monitoring mechanism. The height adjustment of structure 2 can accurately match the vertical distribution characteristics of dust in underground coal mines. For example, the concentration of respirable dust is usually highest at 1.5m above the ground. By dynamically adjusting the detection height, the most representative data can be obtained. Secondly, the lifting structure can avoid equipment obstructions such as conveyor belts and mine cars, ensuring no blind spots in monitoring. Compared with fixed devices, this greatly reduces monitoring errors. In addition, its compact scissor design is suitable for narrow roadway spaces. With the preset height memory function, it can switch between monitoring modes for different scenarios such as mining faces and transport roadways with one click, significantly improving monitoring efficiency and data accuracy. Furthermore, the bottom of the mobile platform 11 includes casters, which can easily move the device. As the mining area deepens, the device can be moved at any time without repeated installation and disassembly. The top surface of the lifting platform 14 is equipped with a monitoring mechanism 2. The monitoring mechanism 2 adopts air intake monitoring, which changes the traditional fixed-point monitoring in fixed areas. It forces the surrounding air into the monitoring cylinder 21, which can overcome the monitoring blind spots caused by airflow stagnation. It is especially suitable for low-wind-speed roadways in coal mines, and can achieve three-dimensional monitoring, greatly improving the accuracy of monitoring and reducing the number of devices required.

[0023] The monitoring mechanism 2 includes a monitoring cylinder 21, inside which a centrifugal impeller 22 is installed. A motor 23 is connected to the connecting end of the centrifugal impeller 22. The rotation of the centrifugal impeller 22 inside the monitoring cylinder 21 draws in air from the mining environment, allowing it to enter the monitoring cylinder 21. The centrifugal impeller 22 is a backward-curved impeller, driven by the motor 23. The backward-curved impeller rotates at high speed driven by the motor 23. Its specially designed backward-curved blades perform work on the air during rotation, creating a negative pressure zone in the central area of ​​the impeller. This forces the external dust-laden air into the monitoring cylinder 21. Simultaneously, the flow channels between the blades accelerate the air and fling it radially out from the pre-reserved outlet of the monitoring cylinder 21. Dust content sensors 4 are respectively installed at the inlet and outlet ends of the monitoring cylinder 21. The monitoring cylinder 21 is installed at an angle from top to bottom. Before dust and air enter the monitoring cylinder 21, the dust content sensor 4 at the inlet can monitor the dust content in the air before it enters. Similarly, a dust content sensor 4 is also added at the air outlet to monitor the dust content in the air again when the air is discharged. Based on the information monitored at the inlet and outlet, it is determined whether the dust content exceeds the standard. The purification efficiency of dust filtration and reduction in the monitoring cylinder 21 can be accurately quantified. When the outlet detection value rises abnormally, an early warning device such as a buzzer can be triggered immediately, which greatly improves the accuracy of the monitoring data. The sensor is a laser scattering principle dust sensor, which uses a laser diode to emit a light beam of wavelength to irradiate dust particles in the air for monitoring. The components also include signal processing, Bluetooth transmission and other modules.

[0024] The inner wall of the monitoring cylinder 21 is connected to an atomizing tube 25 and a dust filter 24. The dust filter 24 is located between the atomizing tube 25 and the centrifugal impeller 22, and the spraying direction of the atomizing tube 25 is set towards the air inlet direction of the monitoring cylinder 21. The monitoring cylinder 21 includes the atomizing tube 25 and the dust filter 24. The atomizing tube 25 can atomize and spray the dust-suppressing liquid inside into the channel of the monitoring cylinder 21, and the spraying direction is clean and facing the inlet, so that the dust content is monitored before the air enters, and the dust contained in the air is directly treated by liquid dust suppression after the air enters, so that the dust weight increases and falls into the interior of the monitoring cylinder 21 along with the liquid. Since the monitoring cylinder 21 is installed at an incline, the liquid with dust falls into the guide water tank 3 by gravity along the incline. The structure is simple and the cost is low. The dust filter 24 can be a dust filter cylinder, which is used to filter the dust remaining in the air and prevent the dust from being discharged into the environment again after the air enters.

[0025] A guide water tank 3 is fixed to the front of the lifting platform 14. The guide water tank 3 has a guide cavity 32 and a purification cavity 33. The guide cavity 32 of the guide water tank 3 is inclined from top to bottom, and the inlet end of the monitoring cylinder 21 corresponds to the position of the guide cavity 32. A filter screen 31 is installed between the purification cavity 33 and the guide cavity 32. A circulation pipe 34 is installed in the purification cavity 33. Since one end of the guide water tank 3 is inclined, it can block the atomized liquid and guide the liquid entering the guide water tank 3. The cavity inside the guide water tank 3 includes the guide cavity 32 and the purification cavity 33. The two are separated by the filter screen 31. The liquid falling into the guide water tank 3 enters the guide cavity 32 and flows into the purification cavity 33 along the inclined direction. It is filtered by the filter screen 31, so that the liquid in the purification cavity 33 can be recycled. The circulation pipe 34 uses a water pump to draw the purified liquid and send it into the atomizing pipe 25. Under the action of pressure, the liquid is atomized and sprayed out to achieve dust treatment.

[0026] 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. An automatic environmental monitoring device for coal mining areas, characterized in that: The system includes an elevator (1), which includes a moving platform (11), a lifting arm (13), a hydraulic component (12), and a lifting platform (14). The top surface of the lifting platform (14) is provided with a monitoring mechanism (2), which includes a monitoring cylinder (21). A centrifugal impeller (22) is installed inside the monitoring cylinder (21). Dust content sensors (4) are respectively provided at the inlet and outlet ends of the monitoring cylinder (21). An atomizing tube (25) and a dust filter (24) are respectively connected to the inner wall of the channel of the monitoring cylinder (21). A guide water tank (3) is fixed on the front of the lifting platform (14). A guide cavity (32) and a purification cavity (33) are respectively provided inside the guide water tank (3).

2. The automatic environmental monitoring device for coal mining areas according to claim 1, characterized in that: The lifting arm (13) and hydraulic components (12) are located between the moving platform (11) and the lifting platform (14), and the monitoring cylinder (21) is bolted to the lifting platform (14) by a fixed bracket (26).

3. The automatic environmental monitoring device for coal mining areas according to claim 1, characterized in that: The monitoring cylinder is installed at an angle from top to bottom, and the centrifugal impeller is connected to a motor (23).

4. The automatic environmental monitoring device for coal mining areas according to claim 1, characterized in that: The dust filter element (24) is located between the atomizing tube (25) and the centrifugal impeller (22), and the spraying direction of the atomizing tube (25) is set towards the inlet air intake direction of the monitoring cylinder (21).

5. The automatic environmental monitoring device for coal mining areas according to claim 1, characterized in that: The guide cavity (32) of the guide water tank (3) is inclined from top to bottom, and the inlet end of the monitoring cylinder (21) corresponds to the position of the guide cavity (32).

6. The automatic environmental monitoring device for coal mining areas according to claim 2, characterized in that: A filter screen (31) is installed between the purification chamber (33) and the guide chamber (32), and a circulation pipe (34) is provided inside the purification chamber (33).

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