Intelligent water film net man-vehicle linkage dustproof system for coal mine return airway

Abstract

The invention relates to an intelligent water film net man-vehicle linkage dustproof system for a coal mine return airway, and belongs to the field of coal mine dustproof control. The front self-cleaning far-infrared remote sensor is used for monitoring the dynamic state of personnel or vehicles and is in linkage with the main control computer to control the fine nozzle to spray high-pressure water mist to form a water film and the dense fiber dust catching door with the framework to be automatically opened and closed, so that dust in the return airway is effectively intercepted and purified. The system adopts the water path electromagnetic valve and the gas path electromagnetic valve to respectively control the actions of water mist spraying and the dust catching door, and is combined with the touch screen operation interface and the data recording module, so that the convenience of operation and the intelligent level of the system are improved, the dust pollution of a coal mine return airway is effectively reduced, and the health and safety of miners are guaranteed; and meanwhile, the automation degree and the environment-friendly degree of mine production are improved.

Description

Technical Field

[0001] The invention belongs to the field of dust prevention and control in coal mines, and relates to an intelligent water film network human-vehicle linkage dust prevention system for a return air lane in a coal mine. Background Art

[0002] Dust control in the return air lane of coal mines has always been the focus and difficulty of coal mine safety management. The dust in the return air lane mainly comes from the mining face or other dust-producing work points upwind. If the dust enters the return air lane with the wind flow and cannot be effectively controlled, it will cause serious harm to the health of miners and may cause safety accidents such as coal dust explosions.

[0003] At present, common dust prevention measures for return air lanes in coal mines mainly include water curtains and dust catchers. The water curtain sprays water mist to moisten the dust particles in the air and make them settle, thereby achieving the purpose of dust reduction. The dust catcher intercepts the dust particles in the air and prevents them from entering the return air lane, thereby achieving the purpose of purifying the air.

[0004] However, the existing water curtain and dust collection net system has the following problems:

[0005] Water curtains and dust-catching nets usually require manual control, which causes inconvenience to passers-by and vehicles and reduces work efficiency.

[0006] The water mist particles sprayed by the existing water curtain system are large, which makes it difficult to effectively cover the entire tunnel section, and the dust reduction effect is limited.

[0007] The existing water curtain system needs to spray water mist continuously, resulting in waste of water resources and increased energy consumption.

[0008] Existing control methods such as touch control, light-controlled water sprinkling and dust reduction, and water curtain dust isolation may be affected by dust and high humidity environments and may cause system misoperation, interfering with normal production activities.

[0009] In order to solve the above problems, the present invention provides a full-section water film net automatic opening and closing system for people and vehicles in the return air lane of a coal mine. The system utilizes self-cleaning infrared remote sensing monitoring technology and is linked to the dust collection door opening and closing system through a main control machine, thereby achieving effective blocking and purification of polluted air in the return air lane, while improving the traffic efficiency of people and vehicles, and providing support for the development of green and intelligent mines. Summary of the invention

[0010] In view of this, the purpose of the present invention is to provide a coal mine return airway intelligent water film net human-vehicle linkage dust prevention system. On the one hand, it improves the effect of polluted air purification, and on the other hand, it avoids manual operation of getting on and off the vehicle, improves traffic efficiency, and improves the construction of coal mine automation industry.

[0011] In order to achieve the above object, the present invention provides the following technical solutions:

[0012] The intelligent water film network and vehicle-man-vehicle linkage dust prevention system for the return air lane of coal mines includes:

[0013] The front self-cleaning far-infrared remote sensor 1 is set 10m in front of the dust collecting door to monitor whether people and vehicles pass through the dust collecting door and transmit the signal to the main control machine 2;

[0014] The main control machine 2 is connected to the front self-cleaning far-infrared remote sensor 1, receives its signal and performs logic operation to control the switch of the water circuit solenoid valve 3 and the gas circuit solenoid valve 5;

[0015] The water circuit electromagnetic valve 3 is connected to the micro nozzle 4 to control the water spraying;

[0016] A micro nozzle 4 is arranged near the dust collecting door and is used to spray high-pressure water mist to form a water film net to intercept and purify dust;

[0017] The gas circuit solenoid valve 5 is connected to the compression cylinder on the dense fiber dust collecting door 8 with a skeleton to control its compression and reset;

[0018] A dense fiber dust collecting door 8 with a frame is arranged at the dust collecting door position to block the dirty air from entering the clean space behind;

[0019] The rear self-cleaning far-infrared remote sensor 6 is arranged at the dividing line 9 of the safe waiting area behind the dust collecting door, and is used to monitor whether people and vehicles pass through the dividing line of the safe waiting area, and transmit the signal to the main control machine 2;

[0020] The safe waiting area dividing line 9 is arranged behind the dust collecting door and is used to indicate the safe waiting position for personnel and vehicles.

[0021] Furthermore, after receiving the signal from the front self-cleaning far-infrared remote sensor 1, the main control machine 2 first controls the closing of the water circuit solenoid valve 3 and the stop of the spraying of the fine nozzle 4. After analyzing the moving speed of the personnel or vehicle and delaying 5 to 15 seconds through logical operation, the air circuit solenoid valve 5 is opened, and the compressed air cylinder pulls the dust collecting door to open in the left and right directions, and the passage is opened, allowing pedestrians or vehicles to pass safely.

[0022] Furthermore, after receiving the signal from the rear self-cleaning far-infrared remote sensor 6, the main control machine 2 immediately controls the closing of the air circuit solenoid valve 5, resets the compression cylinder, pushes the dust collecting door to close left and right, closes the channel, and the main control machine 2 controls the opening of the water circuit solenoid valve 3, and the fine nozzle 4 sprays dust again.

[0023] Furthermore, the front self-cleaning far-infrared remote sensor 1 and the rear self-cleaning far-infrared remote sensor 6 are both self-cleaning infrared remote sensors, which can avoid the influence of dust and high humidity environment on their performance.

[0024] Furthermore, the micro nozzle 4 sprays high-pressure water mist, and the diameter of the mist droplets is less than 10 microns to purify dust.

[0025] Furthermore, the dense fiber dust collecting door 8 with a skeleton is made of stainless steel or ceramic.

[0026] Further, the system is provided with a manual control mode and an automatic control mode;

[0027] In manual control mode, the user controls the start and stop of the system through buttons or remote controls;

[0028] In the automatic control mode, the start and stop of the system are automatically controlled according to the signals of the front self-cleaning far-infrared remote sensor 1 and the rear self-cleaning far-infrared remote sensor 6. The automatic control mode automatically adjusts the spray intensity and the opening time of the dust collecting door according to the set parameters.

[0029] Furthermore, the system is provided with a data recording module to record the system operation status and dust concentration information, so as to facilitate the user to perform analysis and management.

[0030] The beneficial effects of the present invention are:

[0031] (1) A uniform water mist is sprayed out through a high-pressure fine nozzle to form a uniform water film, which effectively intercepts and adsorbs dust particles, achieves the purpose of purifying dust, and significantly improves the air quality of the return air channel.

[0032] (2) The system monitors the passage of people and vehicles through front and rear self-cleaning far-infrared remote sensors and automatically controls the opening and closing of the dust collection door without manual intervention, thereby improving the passage efficiency of people and vehicles.

[0033] (3) The system can automatically adjust the spray intensity according to the dust concentration to avoid waste of water resources and achieve energy saving and consumption reduction.

[0034] (4) The system uses self-cleaning infrared remote sensing monitoring technology, which is not affected by factors such as dust and high humidity environments, thus avoiding the risk of misoperation.

[0035] (5) The system automatically controls the opening and closing of the dust collection door, effectively blocking dirty air from entering the clean space at the rear, thus ensuring the safety of personnel.

[0036] (6) The system realizes the automated control of dust prevention work in the return air lane, improves the automation level of the coal mine, and reduces labor costs.

[0037] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0039] Figure 1 This is a structural diagram of the present invention.

[0040] Figure numerals: front self-cleaning far-infrared remote sensor 1, main control machine 2, water circuit solenoid valve 3, micro nozzle 4, air circuit solenoid valve 5, rear self-cleaning far-infrared remote sensor 6, fiber dust catching net 7, dense fiber dust catching door with skeleton 8, safe waiting area dividing line 9. DETAILED DESCRIPTION

[0041] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0042] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0043] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0044] Implementation method 1:

[0045] The intelligent water film network and vehicle-man-vehicle linkage dust prevention system for the return air lane of coal mines includes:

[0046] A front self-cleaning far-infrared remote sensor 1 is installed 10 meters in front of the dust collecting door to monitor whether a person or vehicle is approaching the dust collecting door;

[0047] A main control machine 2, connected to the front self-cleaning far-infrared remote sensor 1, for receiving and processing monitoring signals;

[0048] A group of fine nozzles 4 are distributed above and on both sides of the dust collecting door, and are used to spray high-pressure water mist to form a water film;

[0049] A dense fiber dust collecting door 8 with a skeleton is located below the fine nozzle 4 and is used to physically intercept dust. A fiber dust collecting net 7 is provided on the dense fiber dust collecting door 8 with a skeleton;

[0050] And a rear self-cleaning far-infrared remote sensor 6 is installed behind the dust collecting door to monitor whether a person or a vehicle leaves the dust collecting door area.

[0051] When a person or vehicle passes through the front remote sensor, the main control machine 2 controls the fine nozzle 4 to spray water and open the dense fiber dust collecting door 8 with a skeleton. When a person or vehicle passes through the rear remote sensor, the main control machine 2 controls the closing of the fine nozzle 4 and the dense fiber dust collecting door 8 with a skeleton.

[0052] Implementation method 2:

[0053] On the basis of the first embodiment, the fine nozzle 4 is connected to the water source through a water circuit solenoid valve 3, and the main control machine 2 controls the water spraying of the fine nozzle 4 by controlling the switch of the water circuit solenoid valve 3. In addition, the dense fiber dust collecting door 8 with a skeleton is connected to the compressed air source through an air circuit solenoid valve 5, and the main control machine 2 controls the opening and closing of the dense fiber dust collecting door 8 with a skeleton by controlling the switch of the air circuit solenoid valve 5.

[0054] Implementation method three:

[0055] On the basis of implementation mode 1 or 2, the system further includes a touch screen operation interface installed next to the main control machine 2 for manually inputting parameters and instructions and displaying the system operation status. The operation interface allows the user to set parameters such as spray time, dust collecting door opening time, spray interval, etc., and displays dust concentration, system operation status and other information in real time on the interface. In addition, the system further includes a data recording module for recording historical data of system operation to facilitate data analysis and system maintenance.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. The intelligent water film net and vehicle-man linkage dust prevention system for the return air lane of a coal mine is characterized by: include: A front self-cleaning far-infrared remote sensor (1) is arranged 10 m in front of the dust collecting door, and is used to monitor whether a person or a vehicle passes through the dust collecting door, and transmits a signal to a main control machine (2); The main control machine (2) is connected to the front self-cleaning far-infrared remote sensor (1), receives its signal and performs logic operation to control the switch of the water circuit solenoid valve (3) and the gas circuit solenoid valve (5); A water circuit electromagnetic valve (3) is connected to the micro nozzle (4) to control the water spraying; A micro nozzle (4) is arranged near the dust collecting door and is used to spray high-pressure water mist to form a water film net to intercept and purify dust; The gas circuit electromagnetic valve (5) is connected to the compression cylinder on the dense fiber dust collecting door (8) with a skeleton to control its compression and reset; A dense fiber dust collecting door (8) with a frame is arranged at the dust collecting door position and is used to block the dirty air from entering the clean space at the rear; A rear self-cleaning far-infrared remote sensor (6) is arranged at the dividing line (9) of the safe waiting area behind the dust collecting door, and is used to monitor whether people and vehicles pass through the dividing line of the safe waiting area, and transmit the signal to the main control machine (2); The safe waiting area dividing line (9) is arranged behind the dust collecting door and is used to indicate the safe waiting position for people and vehicles.

2. The coal mine return airway intelligent water film net human-vehicle linkage dust prevention system according to claim 1 is characterized by: After receiving the signal from the front self-cleaning far-infrared remote sensor (1), the main control machine (2) first controls the water circuit electromagnetic valve (3) to close, and the fine nozzle (4) stops spraying. After analyzing the moving speed of the personnel or vehicle and delaying 5 to 15 seconds through logical operation, the air circuit electromagnetic valve (5) is opened, and the compressed air cylinder pulls the dust collecting door to open in the left and right directions, and the passage is opened, allowing pedestrians or vehicles to pass safely.

3. The coal mine return airway intelligent water film net human-vehicle linkage dust prevention system according to claim 1 is characterized by: After receiving the signal from the rear self-cleaning far-infrared remote sensor (6), the main control machine (2) immediately controls the closing of the gas circuit electromagnetic valve (5), the compression cylinder is reset, the dust collecting door is pushed to close left and right, the channel is closed, the main control machine (2) controls the opening of the water circuit electromagnetic valve (3), and the micro nozzle (4) sprays the dust again.

4. The intelligent water film net human-vehicle linkage dust prevention system for return air lane in coal mine according to claim 1 is characterized in that: The front self-cleaning far-infrared remote sensor (1) and the rear self-cleaning far-infrared remote sensor (6) are both self-cleaning infrared remote sensors, which can avoid the influence of dust and high humidity environment on their performance.

5. The intelligent water film net human-vehicle linkage dust prevention system for return air lane in coal mine according to claim 1 is characterized in that: The micro nozzle (4) sprays high-pressure water mist, with a droplet diameter of less than 10 micrometers, to purify dust.

6. The intelligent water film net human-vehicle linkage dust prevention system for return air lane in coal mine according to claim 1 is characterized in that: The dense fiber dust collecting door (8) with a skeleton is made of stainless steel or ceramic.

7. The intelligent water film net human-vehicle linkage dust prevention system for return air lane in coal mine according to claim 1 is characterized in that: The system is provided with a manual control mode and an automatic control mode; In manual control mode, the user controls the start and stop of the system through buttons or remote controls; In the automatic control mode, the start and stop of the system are automatically controlled according to the signals of the front self-cleaning far-infrared remote sensor (1) and the rear self-cleaning far-infrared remote sensor (6), and the automatic control mode automatically adjusts the spray intensity and the opening time of the dust collecting door according to the set parameters.

8. The coal mine return airway intelligent water film net human-vehicle linkage dust prevention system according to claim 1 is characterized by: The system is provided with a data recording module to record the system operation status and dust concentration information, so as to facilitate the user to perform analysis and management.

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