Mine field flying dust monitoring device and method

Abstract

The invention provides a mine field flying dust monitoring device and method.The mine field flying dust monitoring device comprises a shell, a flash lamp and a sealing door are installed on the shell, an air pump is installed in the shell, a dust detector is arranged above the air pump, the air pump is connected with the dust detector through a pipeline a, and the pipeline a is connected with the dust detector through a pipeline b; the dust detector is communicated with the dust collecting mechanism through a pipeline b; the dust collecting mechanism comprises a fixing box, a dust collecting device and a dust collecting device, wherein the fixing box is arranged in the shell; the fixed plate is mounted in the fixed box; and the rotary driving part a is mounted on the fixed plate. After detected gas is discharged into the cover cap a through the pipeline b, dust particles collide with the filter screen, the filter screen filters the dust particles, the gas penetrates through the filter screen and is discharged from the cover cap b and the exhaust pipe, and under the action of gravity, dust falls into the containing groove, so that the dust particles in airflow are conveniently removed, and then the airflow is discharged into the air.

Description

Technical Field

[0001] The present invention relates to the technical field of mine dust monitoring, and in particular to a mine dust monitoring device and method. Background Art

[0002] The current mining methods mainly include blasting, mechanical chiseling, cutting, friction, etc. These mining operations will produce a large amount of dust, which will bring great harm to the workers in the mining area and cause environmental pollution.

[0003] Chinese patent application No. 2018209915781 discloses a dust monitoring device, which includes a monitoring device body, at least one detector and at least one airflow driving device, wherein the detector and the airflow driving device are both arranged on the monitoring device body, and at least one air duct is arranged inside the monitoring device body, and the airflow in the air duct is driven by the airflow driving device; the detector is provided with a detection probe assembly and a telescopic device, and the telescopic device drives the detection probe assembly to retract into the air duct or extend out of the monitoring device body.

[0004] The air intake fan and the air outlet fan of the dust monitoring device are arranged on the same straight line. The air intake fan takes in air, and the air outlet fan exhausts air, and they work together to form a straight air duct inside the box. The air intake and air outlet are smooth. However, the airflow detected by the dust monitoring device will be directly discharged into the air, and the dust particles in the airflow will be directly discharged into the air. Therefore, we propose a mine dust monitoring device and method. Summary of the invention

[0005] The purpose of the present invention is to address the shortcomings of the prior art and provide a mine dust monitoring device. After the detected gas is discharged into the cover a through the pipe b, the dust particles hit the filter screen, the filter screen filters the dust particles, and the gas passes through the filter screen and is discharged from the cover b and the exhaust pipe. Under the action of gravity, the dust falls into the containing tank, which is convenient for removing the dust particles in the airflow and then discharging it into the air.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A mine dust monitoring device comprises a shell, a flash lamp and a closed door are installed on the shell, an air pump is installed in the shell, a dust detector is arranged above the air pump, the air pump and the dust detector are connected through a pipeline a, and the dust detector is connected to a dust collection mechanism through a pipeline b;

[0008] The dust collection mechanism includes: a fixed box, which is arranged in the shell; a fixed plate, which is installed in the fixed box; a rotating driving member a, which is installed on the fixed plate; a turntable, which is installed at the output end of the rotating driving member a, and a receiving groove is opened in the turntable, and a filter is provided in the receiving groove; a cover a, which is installed in the fixed box, and the cover a is connected to the pipe b; and a cover b, which is installed in the fixed box, and an exhaust pipe is provided in the cover b.

[0009] The cover a is provided with a plate a, the cover b is provided with a plate b, the plates a and b are provided with blocking rings, the turntable is provided with a plurality of discharge ports, and the bottom of the blocking ring is provided with a material dropping trough.

[0010] A flexible air bag is installed on the flat plate a, a cooling water tank is arranged outside the air pump, a buffer box is arranged inside the shell, the buffer box is connected with the flexible air bag, the buffer box is connected with the cooling water tank, and also includes a cleaning mechanism, which cleans the filter screen and the receiving tank.

[0011] The cleaning mechanism includes: a fixed sleeve, which is installed on the flat plate b; a linear driving member a, which is arranged in the fixed sleeve; a moving rod, which is installed at the output end of the linear driving member a; a swing plate, which is installed on the moving rod and has a groove in it; and a scraper, which is slidably arranged in the groove.

[0012] A connecting plate is installed in the fixed sleeve, a protrusion is installed on the outside of the moving rod, a rotating driving member c is installed on the connecting plate, a gear a is installed on the output end of the rotating driving member c, a gear b is rotatably provided on the connecting plate, a sliding groove is opened in the gear b, and the moving rod and the protrusion slide in the sliding groove.

[0013] A through groove is provided on the top of the scraper, and an arc-shaped scraper block is rotatably provided in the through groove. A connecting rod is installed on the arc-shaped scraper block. A mounting groove is provided in the scraper, and a swing rod is installed on the connecting rod. A rotating driving member b is installed on the moving rod, and a rope is installed on the output end of the rotating driving member b. An elastic connecting member is provided in the mounting groove, one end of the elastic connecting member is connected to the connecting rod, and the other end thereof is connected to the mounting groove, and one end of the rope is connected to the swing rod.

[0014] A compression chamber is provided in the swing plate, a piston is slidably provided in the compression chamber, a connecting rod is mounted on the piston, and the connecting rod is connected to the scraper.

[0015] A method for using a mine dust monitoring device comprises the following steps:

[0016] Step 1, detection process: the air pump draws in the outside air and pumps it into the dust detector through the pipe a. The dust detector detects the dust concentration of the gas, and the detected gas is discharged into the dust collection mechanism;

[0017] Step 2, dust collection process: After the detected gas is discharged into the cover a through the pipe b, the dust particles hit the filter screen, the filter screen filters the dust particles, and the gas passes through the filter screen and is discharged from the cover b and the exhaust pipe. Under the action of gravity, the dust falls into the receiving tank;

[0018] Step 3: Switching step: Rotate the drive member a to drive the turntable to rotate, drive another set of filters to rotate to correspond to the positions of the cover b and the cover a to collect dust, and drive another set of filters to rotate to the bottom, at which time the flexible airbag corresponds to the position of the filter;

[0019] Step 4, cooling process: the water in the buffer tank is passed into the cooling water tank through the water pump, and the cooling water tank cools the air pump to extend the service life of the air pump; the water in the cooling water tank absorbs the heat of the air pump and becomes hot;

[0020] Step 5, unloading process: The hot water in the cooling water tank is pumped into the buffer tank through a water pump, and then pumped into the flexible airbag. After the flexible airbag is filled with hot water and expands, it squeezes the filter holes on the bottom filter screen to squeeze out the dust particles stuck in the filter holes. Under the action of gravity, the dust particles in the holding tank pass through the unloading port and the drop chute and fall into the collection box;

[0021] Step 6, cleaning process: start the rotary drive member b to reel in the rope, and then pull the swing rod to drive the connecting rod to rotate, drive the arc scraper block to rotate, the linear drive member a drives the arc scraper block, the swing plate, and the scraper to move into the receiving groove, so that the arc scraper block contacts the arc edge of the receiving groove, and the rotary drive member c drives the arc scraper block to rotate along the axis of the receiving groove to scrape the inner surface wall of the receiving groove to clean the inner surface wall of the receiving groove.

[0022] The beneficial effects of the present invention are:

[0023] (1) After the detected gas is discharged into the cover a through the pipe b, the dust particles hit the filter screen, which filters the dust particles. The gas passes through the filter screen and is discharged from the cover b and the exhaust pipe. Under the action of gravity, the dust falls into the receiving tank, which makes it easy to remove the dust particles in the airflow and then discharge it into the air.

[0024] (2) The present invention uses a water pump to pump hot water in the cooling water tank into a buffer tank and then into a flexible airbag. After the flexible airbag is filled with hot water and expands, it squeezes the filter holes on the bottom filter screen and squeezes out the dust particles stuck in the filter holes. Under the action of gravity, the dust particles in the receiving tank fall into the collection box through the discharge port and the drop chute.

[0025] (3) The present invention starts the rotary drive member b to reel in the rope, thereby pulling the swing rod, driving the connecting rod to rotate, and driving the arc scraper block to rotate. The linear drive member a drives the arc scraper block, the swing plate, and the scraper plate to move into the receiving groove, so that the arc scraper block contacts the arc edge of the receiving groove. The rotary drive member c drives the arc scraper block to rotate along the axis of the receiving groove to scrape the inner surface wall of the receiving groove to clean the inner surface wall of the receiving groove.

[0026] (4) The present invention uses a water pump to pass the water in the buffer tank into the cooling water tank, and the cooling water tank cools the air pump to extend the service life of the air pump; the water in the cooling water tank absorbs the heat of the air pump and becomes hot.

[0027] (5) The present invention drives the turntable to rotate by rotating the driving member a, drives another set of filter screens to rotate to correspond to the positions of the cover b and the cover a to collect dust, and drives another set of filter screens to rotate to the bottom, at which time the flexible airbag corresponds to the position of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of a control unit module of a dust detector according to the present invention;

[0030] Figure 3 This is a schematic diagram of the working principle of the dust detector of the present invention;

[0031] Figure 4 This is a schematic diagram of the internal structure of the optical cavity of the dust detector of the present invention;

[0032] Figure 5 It is a schematic diagram of the internal structure of the housing of the present invention;

[0033] Figure 6 It is a schematic diagram of the cross-sectional structure of the fixing box of the present invention;

[0034] Figure 7 This is a schematic diagram of the rotary drive member a and the turntable at a first angle of the present invention;

[0035] Figure 8 This is a schematic diagram of the main structure of the fixed box of the present invention;

[0036] Fig. 9 This is a second angle schematic diagram of the rotary drive member a and the turntable of the present invention;

[0037] Fig.10 It is a schematic diagram of the cross-sectional structure of the cover a and the cover b of the present invention;

[0038] Fig.11 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0039] Fig.12 For the present invention Fig.11 The enlarged schematic diagram at A in the middle;

[0040] Fig.13 For the present invention Fig.11 The enlarged schematic diagram of point B in the middle;

[0041] Fig.14 It is a schematic diagram of the structure of the elastic connector of the present invention;

[0042] Fig.15 This is a schematic diagram of the swing plate and scraper structure of the present invention;

[0043] Fig.16 It is a schematic diagram of the running state of the arc-shaped scraper block of the present invention.

[0044] The reference numerals of the present application are as follows: 100, housing; 101, flashlight; 102, closed door; 103, air pump; 104, dust detector; 105, pipe a; 106, pipe b; 2, dust collection mechanism; 201, fixed box; 202, fixed plate; 203, rotating drive member a; 204, turntable; 2041, receiving tank; 2042, filter screen; 2043, discharge port; 205, cover a; 206, cover b; 207, exhaust pipe; 208, flat plate a; 209, flat plate b; 210, blocking ring; 2101, drop chute; 211, flexible airbag; 212, cooling water tank; 213 , buffer box; 3, cleaning mechanism; 301, fixed sleeve; 302, linear drive member a; 303, moving rod; 3031, convex block; 304, swing plate; 3041, groove; 3042, compression chamber; 305, scraper; 3051, through groove; 3052, mounting groove; 306, connecting plate; 307, rotary drive member c; 308, gear a; 309, gear b; 3091, slide groove; 310, arc scraper block; 311, connecting rod; 312, swing rod; 313, rotary drive member b; 314, rope; 315, elastic connecting member; 316, connecting frame; 317, piston; 318, connecting rod. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] Embodiment 1: Figure 1-Figure 16 As shown, this embodiment provides a mine dust monitoring device, including a housing 100, on which a flash lamp 101 and a closed door 102 are installed, an air pump 103 is installed in the housing 100, a dust detector 104 is arranged above the air pump 103, the air pump 103 and the dust detector 104 are connected through a pipe a105, and the dust detector 104 is connected to the dust collection mechanism 2 through a pipe b106;

[0049] In this embodiment, the air pump 103 draws in external air, and draws it into the dust detector 104 through the pipe a105. The dust detector 104 detects the dust concentration of the gas, and the detected gas is discharged into the dust collection mechanism 2;

[0050] The dust collection mechanism 2 includes: a fixed box 201, which is arranged in the shell 100; a fixed plate 202, which is installed in the fixed box 201; a rotating driving member a203, which is installed on the fixed plate 202; a turntable 204, which is installed at the output end of the rotating driving member a203, and a receiving groove 2041 is provided in the turntable 204, and a filter screen 2042 is provided in the receiving groove 2041; a cover a205, which is installed in the fixed box 201, and the cover a205 is connected to the pipe b106; a cover b206, which is installed in the fixed box 201, and an exhaust pipe 207 is provided in the cover b206.

[0051] A plate a208 is installed on the cover a205, and a plate b209 is installed on the cover b206. Blocking rings 210 are provided on the plates a208 and b209. A plurality of discharge ports 2043 are provided on the turntable 204. A material drop trough 2101 is provided at the bottom of the blocking ring 210. In this embodiment, after the detected gas is discharged into the cover a205 through the pipe b106, the dust particles hit the filter screen 2042, and the filter screen 2042 filters the dust particles. The gas passes through the filter screen 2042 and is discharged from the cover b206 and the exhaust pipe 207. Under the action of gravity, the dust falls into the receiving groove 2041.

[0052] A flexible air bag 211 is installed on the flat plate a208, a cooling water tank 212 is provided outside the air pump 103, a buffer box 213 is provided inside the housing 100, the buffer box 213 is communicated with the flexible air bag 211, and the buffer box 213 is communicated with the cooling water tank 212.

[0053] In this embodiment, the rotating drive member a203 drives the turntable 204 to rotate, drives another group of filters 2042 to rotate corresponding to the position of the cover b206 and the cover a205 to collect dust, and drives another group of filters 2042 to rotate to the bottom. At this time, the flexible airbag 211 corresponds to the position of the filter 204.

[0054] In this embodiment, the water in the buffer tank 213 is passed into the cooling water tank 212 through a water pump, and the cooling water tank 212 cools the air pump 103 to extend the service life of the air pump 103; the water in the cooling water tank 212 absorbs the heat of the air pump 103 and becomes hot.

[0055] In this embodiment, the hot water in the cooling water tank 212 is pumped into the buffer tank 213 by a water pump, and then pumped into the flexible airbag 211. After the flexible airbag 211 is filled with hot water and expands, it squeezes the filter holes on the bottom filter screen 2042 to squeeze out the dust particles stuck in the filter holes. Under the action of gravity, the dust particles in the receiving groove 2041 pass through the discharge port 2043 and the drop groove 2101 and fall into the collection box 200.

[0056] It should be noted that hot water will soften the flexible airbag 211 , making it easy to expand and squeeze the filter holes on the filter screen 2042 .

[0057] Embodiment 2: Figure 1-Figure 16 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0058] The present embodiment also includes a cleaning mechanism 3, which includes: a fixed sleeve 301, which is installed on the flat plate b209; a linear driving member a302, which is arranged in the fixed sleeve 301; a moving rod 303, which is installed on the output end of the linear driving member a302; a swinging plate 304, which is installed on the moving rod 303, and a groove 3041 is provided in the swinging plate 304; and a scraper 305, which is slidably arranged in the groove 3041.

[0059] A connecting plate 306 is installed in the fixed sleeve 301, a protrusion 3031 is installed on the outer side of the moving rod 303, a rotating driving member c307 is installed on the connecting plate 306, a gear a308 is installed on the output end of the rotating driving member c307, a gear b309 is rotatably provided on the connecting plate 306, a slide groove 3091 is opened in the gear b309, and the moving rod 303 and the protrusion 3031 slide in the slide groove 3091.

[0060] A through groove 3051 is provided at the top of the scraper 305, and an arc-shaped scraper block 310 is rotatably provided in the through groove 3051, a connecting rod 311 is installed on the arc-shaped scraper block 310, a mounting groove 3052 is provided in the scraper 305, a swing rod 312 is installed on the connecting rod 311, a rotating driving member b313 is installed on the moving rod 303, a rope 314 is installed at the output end of the rotating driving member b313, an elastic connecting member 315 is provided in the mounting groove 3052, one end of the elastic connecting member 315 is connected to the connecting rod 311, and the other end thereof is connected to the mounting groove 3052, and one end of the rope 314 is connected to the swing rod 312. A compression chamber 3042 is provided in the swing plate 304, a piston 317 is slidably provided in the compression chamber 3042, a connecting rod 318 is installed on the piston 317, the connecting rod 318 is connected to the scraper 305, a connecting frame 316 is installed on the moving rod 303, and a rotating driving member b313 is installed on the connecting frame 316.

[0061] It should be noted that: without any external force, the arc-shaped scraper block 310 is driven to maintain the arc-shaped scraper block 310 under the elastic torque of the elastic connector 315. Fig. 9 Status shown.

[0062] In this embodiment, the rotary drive member b313 is started to reel in the rope 314, thereby pulling the swing rod 312, driving the connecting rod 311 to rotate, driving the arc scraper block 310 to rotate, and the linear drive member a302 drives the arc scraper block 310, the swing plate 304, and the scraper plate 305 to move into the receiving groove 2041, so that the arc scraper block 310 contacts the arc edge of the receiving groove 2041 (such as Fig.16 As shown), the rotating driving member c307 drives the arc-shaped scraper block 310 to rotate along the axis of the receiving groove 2041 to scrape the inner surface wall of the receiving groove 2041 to clean the inner surface wall of the receiving groove 2041;

[0063] The water in the buffer box 213 is pumped into the compression chamber 3042 by a water pump, which can drive the scraper 305 to extend outward, and drive the scraper 305 and the swing plate 304 to scrape the filter screen 2042.

[0064] Working steps

[0065] Step 1, detection process: the air pump 103 draws in external air, and draws it into the dust detector 104 through the pipeline a105. The dust detector 104 detects the dust concentration of the gas, and the detected gas is discharged into the dust collection mechanism 2;

[0066] Step 2, dust collection process: After the detected gas is discharged into the cover a205 through the pipe b106, the dust particles hit the filter 2042, the filter 2042 filters the dust particles, and the gas passes through the filter 2042 and is discharged from the cover b206 and the exhaust pipe 207. Under the action of gravity, the dust falls into the receiving tank 2041;

[0067] Step 3, switching step: the rotating driving member a203 drives the turntable 204 to rotate, drives another set of filter screens 2042 to rotate to correspond to the positions of the cover b206 and the cover a205 to collect dust, and drives another set of filter screens 2042 to rotate to the bottom, at which time the flexible airbag 211 corresponds to the position of the filter screen 2042;

[0068] Step 4, cooling process: the water in the buffer tank 213 is passed into the cooling water tank 212 through a water pump, and the cooling water tank 212 cools the air pump 103 to extend the service life of the air pump 103; the water in the cooling water tank 212 absorbs the heat of the air pump 103 and becomes hot;

[0069] Step 5, unloading process: The hot water in the cooling water tank 212 is pumped into the buffer tank 213 through a water pump, and then pumped into the flexible airbag 211. After the flexible airbag 211 is filled with hot water and expands, it squeezes the filter holes on the bottom filter 2042 to squeeze out the dust particles stuck in the filter holes. Under the action of gravity, the dust particles in the receiving groove 2041 pass through the unloading port 2043 and the dropping groove 2101 and fall into the collection box 200.

[0070] Step 6, cleaning process: Start the rotary drive b313 to reel in the rope 314, and then pull the swing rod 312, drive the connecting rod 311 to rotate, drive the arc scraper 310 to rotate, and the linear drive a302 drives the arc scraper 310, the swing plate 304, and the scraper 305 to move into the receiving groove 2041, so that the arc scraper 310 contacts the arc edge of the receiving groove 2041 (such as Fig.16 As shown), the rotating driving member c307 drives the arc-shaped scraper block 310 to rotate along the axis of the receiving groove 2041, scrapes the inner surface wall of the receiving groove 2041, and cleans the inner surface wall of the receiving groove 2041.

[0071] It should be noted that the dust detector 104 in this embodiment consists of three parts: an optical cavity structure, a control unit, and a flow control unit. The optical cavity structure consists of a laser, an optical element, and a photodetector; the control unit consists of a filter amplifier circuit, a data processing unit, a data transmission unit, and a display unit; the flow control unit consists of an air circuit and an air pump 103. The dust detector 104 is a prior art and will not be described in detail here.

[0072] like Figure 3 , 4 As shown, the optical cavity structure consists of a laser source, a focusing mirror, a reflector, and a photodetector. The laser source is a 780nm laser. This wavelength of laser has high monochromaticity and stability, which enables it to provide a stable and consistent light source in the light scattering method. Its spectral width is narrow, and using it for light scattering method measurements can achieve higher accuracy and reliability.

[0073] The internal structure design of the optical cavity is as follows Figure 3As shown in the figure, the 780nm laser is focused on the photosensitive area by the focusing mirror. When the particles pass through the photosensitive area, the laser is scattered, but only a small part of the light is received by the photodetector. In order to improve the utilization rate of scattered light, a concave mirror is placed in the direction of the 90° lighting angle to reflect the scattered light and gather it on the surface of the photodetector. Since the scattered light intensity is weak, the distance between the reflector and the detector has a greater impact on the scattering effect. In the design process, it is necessary to constantly try to calculate the scattering effect at different distances and determine the optimal distance, so as to adjust the internal structure of the optical cavity. The size of the concave mirror is Φ = 14mm, the focal length f = 6mm, and the radius R = 12mm. After optical simulation, it is calculated that when the fixed point of the concave mirror is 14-16mm away from the center of the photosensitive area, the intensity of the scattered light received by the photodetector is the strongest and the position is more concentrated. At other distances, the intensity of the scattered light received by the photodetector is weak and scattered. Considering the processing error of the optical cavity structure, when designing the internal structure of the optical cavity, the distance between the bottom of the concave mirror and the detector is positioned at 30mm. In addition, there is a cross screw hole in the center of the back of the concave mirror, and a circle of threads on the periphery. Two springs are directly installed between the optical cavity wall and the concave mirror. By rotating the cross screw hole, the distance from the concave mirror to the photodetector can be adjusted, thereby adjusting the scattering effect of the concave mirror.

[0074] The control unit is composed of a filter amplifier circuit, a data processing unit, a data transmission unit and a display unit. The filter amplifier circuit includes filters, amplifiers, analog-to-digital converters and digital signal processors. Since the signal output by the photodetector is too weak, it needs to be amplified by an amplifier circuit to a sufficient amplitude, and then filtered to remove noise and stray signals, thereby improving the signal quality. The analog-to-digital converter converts the analog signal into a digital signal for subsequent processing and analysis.

[0075] The data processing unit is used to process and analyze digital signals. The measuring instrument adopts a combination of statistical methods and model methods, using statistical principles and methods to conduct in-depth analysis of data, identify and eliminate outliers. The mean filter method is used to calculate the average value around the data point to smooth the data and reduce the impact of outliers. This method can effectively identify and process outliers and improve the reliability of data. On this basis, a mathematical model is established to describe the relationship between data, and the model is used to identify and predict outliers.

[0076] The data transmission unit involves the process of transmitting dust monitoring data from the monitoring point to the data center. The dust meter supports two transmission methods: 4G network transmission and Ethernet transmission. The dust meter has a built-in 4G module, which allows the device to be directly connected to the 4G network for data transmission. In mines that require remote monitoring, the monitoring data can be transmitted to the remote data center in real time through the built-in 4G module of the dust meter. In addition, the dust meter is equipped with an Ethernet interface, which can connect the device to the local area network, and then transmit the data to the data center through the local area network. At the same time, Ethernet also supports connection with other devices or systems, which facilitates data sharing and exchange. 4G modules and Ethernet are both commonly used transmission methods in the data transmission unit of the dust meter. Among them, the 4G module uses the mobile communication network for data transmission, which has the advantages of high real-time performance and wide coverage; while Ethernet is based on the local area network for data transmission, which has the advantages of high stability and high bandwidth. When choosing which transmission method to use, it is necessary to make a comprehensive consideration based on the specific application scenarios and needs;

[0077] The flow control unit includes two parts: the air intake path and the air pump. The control unit is connected to the air pump and can control the air pump flow rate in real time. The flow rate of the air pump can be controlled in real time according to the actual conditions of the environment such as the temperature, humidity, and atmospheric pressure on site. Flow control can directly affect the flow rate and flow rate of the air sample in the optical cavity. By controlling the flow rate of the sampling pump, the dust particles in the optical cavity can be evenly distributed, thereby improving the measurement accuracy of the dust concentration. If the flow control is inaccurate, the dust particles in the optical cavity may be unevenly distributed, thereby affecting the accuracy of the measurement results. Stable flow control helps to maintain the stable operation of the monitoring equipment, reduce the occurrence of system failures, and improve the reliability and service life of the system. When the flow rate and flow rate of the sampling gas are stable, the measurement error and fluctuation of the system will be reduced, thereby improving the stability and reliability of the measurement results. In addition, by quickly and accurately adjusting the flow rate and flow rate of the sampling gas, it can be ensured that the system responds to changes in dust concentration in the environment in a short time. This real-time response capability is of great significance for occasions where rapid response measures need to be taken, such as emergency monitoring of pollution accidents.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mine dust monitoring device, comprising a housing (100), characterized in that: A flash lamp (101) and a closed door (102) are installed on the shell (100), an air pump (103) is installed in the shell (100), a dust detector (104) is arranged above the air pump (103), the air pump (103) and the dust detector (104) are connected via a pipe a (105), and the dust detector (104) is connected to the dust collection mechanism (2) via a pipe b (106); The dust collecting mechanism (2) comprises: A fixed box (201), the fixed box (201) being arranged in the housing (100); A fixing plate (202), wherein the fixing plate (202) is installed in the fixing box (201); A rotating driving member a (203), wherein the rotating driving member a (203) is mounted on the fixing plate (202); A rotating disk (204), the rotating disk (204) being mounted on the output end of the rotating driving member a (203), a receiving groove (2041) being provided in the rotating disk (204), and a filter screen (2042) being provided in the receiving groove (2041); A cover a (205), the cover a (205) is installed in the fixed box (201), and the cover a (205) is connected to the pipeline b (106); A cover b (206), wherein the cover b (206) is installed in the fixing box (201), and an exhaust pipe (207) is arranged in the cover b (206).

2. A mine dust monitoring device according to claim 1, characterized in that: The cover a (205) is provided with a plate a (208), the cover b (206) is provided with a plate b (209), the plates a (208) and b (209) are provided with blocking rings (210), the turntable (204) is provided with a plurality of discharge ports (2043), and the bottom of the blocking ring (210) is provided with a material dropping trough (2101).

3. A mine dust monitoring device according to claim 2, characterized in that: A flexible air bag (211) is installed on the flat plate a (208), a cooling water tank (212) is provided on the outside of the air pump (103), a buffer box (213) is provided in the shell (100), the buffer box (213) is connected to the flexible air bag (211), the buffer box (213) is connected to the cooling water tank (212), and also includes a cleaning mechanism (3), the cleaning mechanism (3) cleans the filter screen (2042) and the receiving tank (2041).

4. A mine dust monitoring device according to claim 3, characterized in that: The cleaning mechanism (3) comprises: A fixing sleeve (301), wherein the fixing sleeve (301) is installed on the plate b (209); A linear driving member a (302), wherein the linear driving member a (302) is disposed in the fixing sleeve (301); A motion rod (303), the motion rod (303) being mounted on an output end of the linear drive member a (302); A swing plate (304), the swing plate (304) being mounted on the motion rod (303), and a groove (3041) being formed in the swing plate (304); A scraper (305), wherein the scraper (305) is slidably disposed in the groove (3041).

5. A mine dust monitoring device according to claim 4, characterized in that: A connecting plate (306) is installed in the fixing sleeve (301), a protrusion (3031) is installed on the outer side of the moving rod (303), a rotating driving member c (307) is installed on the connecting plate (306), a gear a (308) is installed on the output end of the rotating driving member c (307), a gear b (309) is rotatably provided on the connecting plate (306), a sliding groove (3091) is provided in the gear b (309), and the moving rod (303) and the protrusion (3031) slide in the sliding groove (3091).

6. A mine dust monitoring device according to claim 5, characterized in that: The scraper (305) is provided with a through slot (3051) at the top, an arc-shaped scraper block (310) is rotatably provided in the through slot (3051), a connecting rod (311) is installed on the arc-shaped scraper block (310), a mounting slot (3052) is provided in the scraper (305), a swing rod (312) is installed on the connecting rod (311), a rotary drive member b (313) is installed on the motion rod (303), a rope (314) is installed at the output end of the rotary drive member b (313), an elastic connecting member (315) is provided in the mounting slot (3052), one end of the elastic connecting member (315) is connected to the connecting rod (311), and the other end thereof is connected to the mounting slot (3052), and one end of the rope (314) is connected to the swing rod (312).

7. A mine dust monitoring device according to claim 6, characterized in that: A compression chamber (3042) is provided in the swing plate (304), a piston (317) is slidably provided in the compression chamber (3042), a connecting rod (318) is mounted on the piston (317), and the connecting rod (318) is connected to the scraper (305).

8. A mine dust monitoring device according to claim 7, characterized in that: A collecting box (200) is provided inside the fixed box (201).

9. The method for using a mine dust monitoring device according to claim 8, characterized in that: The following steps are involved: Step 1, detection process: the air pump (103) draws in external air, and draws it into the dust detector (104) through the pipeline a (105). The dust detector (104) detects the dust concentration of the gas, and the detected gas is discharged into the dust collection mechanism (2); Step 2, dust collection process: After the detected gas is discharged into the cover a (205) through the pipe b (106), the dust particles hit the filter (2042), the filter (2042) filters the dust particles, and the gas passes through the filter (2042) and is discharged from the cover b (206) and the exhaust pipe (207). Under the action of gravity, the dust falls into the receiving tank (2041); Step 3, switching step: the rotating driving member a (203) drives the rotating disk (204) to rotate, drives another set of filter screens (2042) to rotate to correspond to the positions of the cover b (206) and the cover a (205) to collect dust, and drives another set of filter screens (2042) to rotate to the bottom, at which time the flexible airbag (211) corresponds to the position of the filter screen (2042); Step 4, cooling process: the water in the buffer tank (213) is passed into the cooling water tank (212) through a water pump, and the cooling water tank (212) cools the air pump (103) to extend the service life of the air pump (103); the water in the cooling water tank (212) absorbs the heat of the air pump (103) and becomes hot; Step 5, unloading process: The hot water in the cooling water tank (212) is pumped into the buffer tank (213) and then pumped into the flexible airbag (211) by a water pump. After the flexible airbag (211) is filled with hot water and expands, it squeezes the filter holes on the bottom filter (2042) to squeeze out the dust particles stuck in the filter holes. Under the action of gravity, the dust particles in the receiving groove (2041) pass through the unloading port (2043) and the drop groove (2101) and fall into the collection box (200).

10. The method for using a mine dust monitoring device according to claim 9, characterized in that: Also includes: Step 6, cleaning process: start the rotary drive member b (313) to reel in the rope (314), thereby pulling the swing rod (312), driving the connecting rod (311) to rotate, driving the arc scraper block (310) to rotate, and the linear drive member a (302) drives the arc scraper block (310), the swing plate (304), and the scraper plate (305) to move into the receiving groove (2041), so that the arc scraper block (310) contacts the arc edge of the receiving groove (2041), and the rotary drive member c (307) drives the arc scraper block (310) to rotate along the axis of the receiving groove (2041), scrapes the inner surface wall of the receiving groove (2041), and cleans the inner surface wall of the receiving groove (2041).

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