Coal mine ventilation fault monitoring and control device system and method

Abstract

The invention provides a coal mine ventilation fault monitoring and control device system and method. The coal mine ventilation fault monitoring and control device system comprises a ventilation module, a ventilation monitoring module, a working condition monitoring module and a control module. The ventilation module comprises an air supply way and an air return way which are respectively provided with a first fan device and a second fan device; the air supply way and the air return way are communicated through a transverse roadway, and an air door device and a purification device are arranged in the transverse roadway; the ventilation monitoring module comprises a plurality of first monitoring substations and a plurality of second monitoring substations which are respectively used for monitoring the ventilation states of an air supply way and an air return way; the working condition monitoring module comprises a first detection terminal and a second detection terminal which are respectively used for monitoring the working states of the first fan device and the second fan device. The ventilation state and the working condition of the ventilation equipment can be monitored on line, and efficient operation of underground ventilation work is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of ventilation safety monitoring, and relates to a coal mine ventilation fault monitoring and control device system and method. Background Art

[0002] Mine ventilation plays a role in transporting fresh air from the surface to the underground working area, and then discharging toxic and harmful air generated during production operations to the surface, which is of great significance for the safe production of coal mines. The operating status of coal mine ventilation is directly related to the production safety and operation progress of coal mines. Therefore, it is very important to reasonably construct a ventilation system and scientifically control the ventilation status to create a suitable production environment underground and maintain the stability of the coal mine system.

[0003] The existing coal mine system often uses manual regular inspection of mine ventilation hidden dangers to troubleshoot and diagnose ventilation system faults, but the response speed is slow, timeliness and accuracy are insufficient, efficiency is low, and the complex underground environment poses a certain threat to the personal safety of inspection personnel.

[0004] As the accuracy requirements for ventilation system monitoring continue to increase, the use of fixed detection sensors instead of manual inspections has gradually become the mainstream method for ventilation system monitoring. However, the existing detection sensors are single in form, with few detection parameters, and cannot perform all-round safety monitoring. In addition, the control accuracy of air supply and return air is not high, and the degree of automation and real-time performance are poor. It is impossible to provide a basis for disaster warning in a timely manner, resulting in the inability to prevent coal mine accidents in advance, which is easy to cause serious safety accidents.

[0005] Therefore, there is a need to provide a monitoring system that can more comprehensively monitor the ventilation status. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a coal mine ventilation fault monitoring and control device system and method, which can comprehensively, quickly and accurately monitor the ventilation status information, and combine the online monitoring of the operating conditions of the ventilation equipment to timely adjust the ventilation strategy, avoid ventilation abnormalities due to equipment failures, and ensure the efficient and normal operation of underground ventilation work.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] In the first aspect, the present invention provides a coal mine ventilation fault monitoring and control device system, including a ventilation module, a ventilation monitoring module, a working condition monitoring module and a control module; the ventilation module includes a supply air lane and a return air lane, and the supply air lane and the return air lane are respectively provided with a first fan device and a second fan device; the supply air lane and the return air lane are connected through a plurality of transverse lanes, and a damper device and a purification device are provided in the transverse lanes; the ventilation monitoring module includes a plurality of first monitoring substations and a plurality of second monitoring substations, and the plurality of first monitoring substations are equidistantly arranged along the extension direction of the supply air lane, for monitoring the ventilation state of the supply air lane; the plurality of second monitoring substations are equidistantly arranged along the extension direction of the return air lane, for monitoring the ventilation state of the return air lane; the working condition monitoring module includes a first A detection terminal and a second detection terminal, wherein the first detection terminal is connected to the first fan device for monitoring the working state of the first fan device; the second detection terminal is connected to the second fan device for monitoring the working state of the second fan device; the control module comprises a calculation component, a reference component, a processing component, an equipment information acquisition component, a first execution component and a second execution component, the processing component is respectively electrically connected to the calculation component, the reference component, the equipment information acquisition component, the first execution component and the second execution component, the calculation component is communicatively connected to the ventilation monitoring module, the equipment information acquisition component is communicatively connected to the operating condition monitoring module, the first execution component is respectively connected to the first fan device and the second fan device, and the second execution component is respectively connected to the damper device and the purification device.

[0009] As a preferred technical solution of the present invention, the first monitoring substation is provided with a first wind speed detection sensor, a first wind pressure detection sensor and a first gas detection sensor.

[0010] The second monitoring substation is provided with a second wind speed detection sensor, a second wind pressure detection sensor and a second gas detection sensor.

[0011] Preferably, the first monitoring substation and the second monitoring substation are arranged opposite to each other or staggered.

[0012] The present invention can comprehensively grasp and analyze the ventilation status by respectively acquiring parameters such as wind speed, wind pressure and air quality in the supply air lane and the return air lane, thereby improving the accuracy of ventilation abnormality monitoring.

[0013] As a preferred technical solution of the present invention, the computing component is communicatively connected to the first monitoring substation and the second monitoring substation respectively, and is used to respectively calculate the wind speed difference between the first wind speed detection sensor and the second wind speed detection sensor, the wind pressure difference between the first wind pressure detection sensor and the second wind pressure detection sensor, and the concentration difference between the first gas detection sensor and the second gas detection sensor of the first monitoring substation and the second monitoring substation at corresponding positions.

[0014] The reference component pre-stores a wind speed threshold, a wind pressure threshold and a concentration threshold.

[0015] The processing component is used to compare the wind speed threshold and the wind speed difference, the wind pressure threshold and the wind pressure difference, and the concentration threshold and the concentration difference, respectively, to determine whether the ventilation is abnormal and determine the abnormal location.

[0016] As a preferred technical solution of the present invention, the first detection terminal is provided with a first motor detection component, a first spindle detection component and a first air volume detection component.

[0017] The second detection terminal is provided with a second motor detection component, a second spindle detection component and a second air volume detection component.

[0018] As a preferred technical solution of the present invention, the equipment information acquisition component is communicatively connected to the first detection terminal and the second detection terminal respectively, for respectively acquiring the operating condition detection values ​​of the first fan device and the second fan device, and transmitting them to the processing component.

[0019] The reference component pre-stores an electromechanical operating condition threshold, a spindle operating condition threshold and an air volume threshold.

[0020] The processing component is used to compare the electromechanical operating condition threshold, the spindle operating condition threshold and the air output threshold with their corresponding thresholds respectively to determine whether the equipment is faulty.

[0021] The present invention can accurately determine whether a fan device has a fault by online monitoring of the motor operating condition information, the main shaft operating condition information and the air output status of the fan device, and analyze the fault type so as to quickly take effective countermeasures and reduce the safety hazards caused by abnormal ventilation.

[0022] As a preferred technical solution of the present invention, the ventilation module further includes a first backup fan and a second backup fan, and the first backup fan and the second backup fan are respectively arranged in the supply air lane and the return air lane.

[0023] The control module is also electrically connected to the first backup fan and the second backup fan respectively, and is used to control the first backup fan and / or the second backup fan to perform ventilation when a device fails.

[0024] The present invention arranges backup fan equipment in the air supply lane and the return air lane respectively, so as to start the backup ventilation mode when the main fan device fails, thereby ensuring the normal operation of underground ventilation and further ensuring the safety of underground personnel and equipment.

[0025] As a preferred technical solution of the present invention, the damper device includes an electric damper, which is rotatably connected to the transverse lane, and the second actuator is electrically connected to the electric damper for adjusting the rotation angle of the electric damper.

[0026] Preferably, the electric damper is arranged near the intersection of the air supply lane and the transverse lane.

[0027] The present invention adjusts the ventilation volume of the lateral tunnel by regulating the rotation angle of the electric damper, thereby adjusting the mixing ratio of the purified return air in the return air tunnel and the fresh air in the supply air tunnel, recycling the airflow, ensuring the airflow quality, and ensuring safe ventilation underground.

[0028] As a preferred technical solution of the present invention, a plurality of air filter plate assemblies are rotatably arranged in the purification device, and the air filter plate assemblies are electrically connected to the second actuator assembly, and the second actuator assembly is used to adjust the rotation angle of the air filter plate assembly.

[0029] Preferably, a plurality of air filter plate assemblies are arranged in the middle of the transverse tunnel.

[0030] The present invention controls the rotation angle of the air filter plate assembly according to the real-time wind flow conditions in the return air lane to adjust the filtering load, which is beneficial to improving the return air purification efficiency and realizing the efficient recycling of the wind flow.

[0031] Preferably, a metering component is further provided at the bottom of the air filter plate assembly, and a hammering component is also movably provided on the air filter plate assembly, and the metering component and the hammering component are independently connected to the control module.

[0032] The present invention can monitor the mass change of the sediment and timely perform hammering and cleaning operations on the air filter plate assembly to avoid the clogging of the filter plate and the reduction of the filtering efficiency.

[0033] As a preferred technical solution of the present invention, data communication is performed between the control module, the ventilation module, the ventilation monitoring module and the working condition monitoring module via an Ethernet ring network.

[0034] The data transmission volume of the present invention is large, the transmission speed is fast and stable, and the accuracy and timeliness of ventilation monitoring and abnormality analysis are guaranteed.

[0035] In a second aspect, the present invention provides a method for monitoring and controlling ventilation failure in a coal mine, wherein the method adopts the device system for monitoring and controlling ventilation failure in a coal mine according to the first aspect, and the method comprises:

[0036] S1: respectively obtaining ventilation status information of the supply air lane and the return air lane, and operating condition information of the first fan device and the second fan device, and transmitting them to the control module;

[0037] S2: The control module determines whether the ventilation of the ventilation module is abnormal according to the ventilation status information of the air supply lane and the return air lane. If so, S3 is executed. Otherwise, the initial ventilation state is maintained.

[0038] S3: The control module determines whether the first fan device and the second fan device fail according to the operating condition information. If so, a fault analysis is performed on the first fan device and the second fan device. Otherwise, the control module feedback controls the first fan device, the second fan device, the damper device and the purification device to regulate the air flow entering the supply air lane, and regulates the ventilation state of the supply air lane, the ventilation state of the return air lane, and the air flow entering the supply air lane from the return air lane, so that the ventilation state information of the supply air lane and the return air lane is restored to the initial ventilation state.

[0039] The system refers to an equipment system, a device system or a production device.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] The present invention provides a coal mine ventilation fault monitoring and control device system and method, which performs real-time online monitoring of ventilation status and equipment operating conditions with high accuracy and timeliness, can recycle return air, reduce energy consumption, greatly improve ventilation safety and stability, and ensure the personal safety of underground workers and the efficient operation of operating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic structural diagram of a ventilation module provided in a specific embodiment of the present invention.

[0043] Figure 2 A connection diagram of a coal mine ventilation fault monitoring and control device system provided for a specific embodiment of the present invention.

[0044] Among them, 100-ore body; 1-air supply lane; 101-first fan device; 102-first backup fan; 2-return air lane; 201-second fan device; 202-second backup fan; 3-transverse lane; 301-damper device; 302-purification device; 200-first monitoring substation; 21-first wind speed detection sensor; 22-first wind pressure detection sensor; 23-first gas detection sensor; 300-second monitoring substation; 31-second wind speed detection sensor; 32-second wind pressure detection sensor device; 33-second gas detection sensor; 400-first detection terminal; 41-first motor detection component; 42-first spindle detection component; 43-first air volume detection component; 500-second detection terminal; 51-second motor detection component; 52-second spindle detection component; 53-second air volume detection component; 600-control module; 61-calculation component; 62-reference component; 63-processing component; 64-device information acquisition component; 65-first execution component; 66-second execution component. DETAILED DESCRIPTION

[0045] It should be understood that, in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0047] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0048] In a specific embodiment, the present invention provides a coal mine ventilation fault monitoring and control device system, such as Figure 1 and Figure 2 As shown, it includes a ventilation module, a ventilation monitoring module, a working condition monitoring module and a control module 600. The ventilation module includes a supply air lane 1 and a return air lane 2, wherein the supply air lane 1 and the return air lane 2 are respectively provided with a first fan device 101 and a second fan device 201, and the supply air lane 1 and the return air lane 2 are connected through a plurality of transverse lanes 3, wherein the transverse lanes 3 are provided with a damper device 301 and a purification device 302. The supply air lane 1 and the return air lane 2 are respectively located on both sides of the ore body 100. In the normal ventilation state, the supply air lane 1 and the return air lane 2 are both connected with the underground working area, so that the fresh air ( Figure 1 The first fan device 101 is used to blow air from the air supply tunnel 1 into the underground working area to provide fresh air, while the return air in the return air tunnel 2 ( Figure 1(black arrow in the middle) Under the action of the second fan device 201, a part of the air is directly discharged from the return air lane 2 to the outside of the ore body 100, and the other part of the air flows into the transverse tunnel 3, and after purification, it enters the supply air lane 1 through the damper device 301, and is mixed with the fresh air for recycling. The ventilation monitoring module includes a plurality of first monitoring substations 200 and a plurality of second monitoring substations 300, and the plurality of first monitoring substations 200 are arranged at equal intervals along the extension direction of the supply air lane 1, and the plurality of second monitoring substations 300 are arranged at equal intervals along the extension direction of the return air lane 2, and are used to monitor the ventilation status of the supply air lane 1 and the return air lane 2 respectively, and maintain the stability and safety of the overall ventilation status. The working condition monitoring module includes a first detection terminal 400 and a second detection terminal 500, wherein the first detection terminal 400 is connected to the first fan device 101, and the second detection terminal 500 is connected to the second fan device 201, for respectively monitoring the working state of the first fan device 101 and the working state of the second fan device 201, so as to determine whether an abnormality occurs in the device and analyze the fault type. The control module 600 includes a calculation component 61, a reference component 62, a processing component 63, a device information acquisition component 64, a first execution component 65 and a second execution component 66. The processing component 63 is electrically connected to the calculation component 61, the reference component 62, the device information acquisition component 64, the first execution component 65 and the second execution component 66, respectively. The computing component 61 is connected to the ventilation monitoring module in communication, the equipment information acquisition component 64 is connected to the working condition monitoring module in communication, the first execution component 65 is connected to the first fan device 101 and the second fan device 201 respectively, and is used to adjust the air volume and operating state of the first fan device 101 and the second fan device 201, and the second execution component 66 is connected to the damper device 301 and the purification device 302 respectively, and is used to adjust the ventilation volume of the damper device 301 and the processing load of the purification device 302. The processing component 63 comprehensively and timely analyzes the ventilation state and equipment working condition information, and then adjusts the operating conditions of the first fan device 101, the second fan device 201, the damper device 301 and the purification device 302 to maintain stable and safe operation of underground ventilation.

[0049] In some embodiments, the control module 600 is used as a terminal for the staff to operate and monitor in the coal mine, establishes a complete communication network in the entire inspection area, and communicates data with the ventilation module, the ventilation monitoring module and the working condition monitoring module through the Ethernet ring network, so that the monitoring information can be obtained quickly and accurately, and the data can be two-way interactive. The processing component 63 described in the present invention includes but is not limited to a central processing unit, an appropriate controller and a microcontroller, etc., and performs data communication, information processing and analysis, and issuing execution instructions through programs and data models commonly used in the field. The computing component 61 can use various general processing components 63 with computing capabilities known to those skilled in the art, including but not limited to computing chips, various processors running machine learning model algorithms, digital signal processors, etc. The reference component 62 is a readable storage medium that is connected to the processing component 63 in communication, and can use a read memory or random access memory commonly used in the field. The device information acquisition component 64 is a communication component known to those skilled in the art with data receiving and output functions, such as a network card, a modem, a wireless communication transceiver, etc., which is used to upload device working condition information to the processing component 63. The first execution component 65 realizes remote control of the first fan device 101 and the second fan device 201 through software, hardware and electromechanical control technology commonly used in the art, and performs corresponding actions according to the instructions issued by the processing component 63. The second execution component 66 realizes remote control of the damper device 301 and the purification device 302 through software, hardware and electromechanical control technology commonly used in the art, and performs corresponding actions according to the instructions issued by the processing component 63.

[0050] The control module 600 may also include a display device for displaying information to the user, as well as a keyboard and a pointing device for providing interaction with the staff, and may receive input from the staff in any form. Those skilled in the art may add layouts on their own based on the process flow and equipment structure selection, and the present invention does not make special requirements or specific limitations on this.

[0051] In addition, the control module 600 may also include an alarm component, and be electrically connected to the processing component 63. When the processing component 63 detects ventilation abnormalities or equipment failures, the alarm component is triggered to sound an alarm, which may be various types of indicator lights or speakers, etc.

[0052] In some embodiments, the first monitoring substation 200 is provided with a first wind speed detection sensor 21, a first wind pressure detection sensor 22 and a first gas detection sensor 23, the first wind speed detection sensor 21 is used to detect the wind speed of the air flow in the air supply lane 1 online, the first wind pressure detection sensor 22 is used to detect the wind pressure of the air flow in the air supply lane 1 online, and the first gas detection sensor 23 is used to detect the wind flow parameters in the air supply lane 1 online, including but not limited to detecting gas concentration, carbon dioxide concentration, carbon monoxide concentration and oxygen concentration, etc., and those skilled in the art can add or delete them according to actual conditions. The second monitoring substation 300 is provided with a second wind speed detection sensor 31, a second wind pressure detection sensor 32 and a second gas detection sensor 33, the second wind speed detection sensor 31 is used to detect the wind speed of the air flow in the return air lane 2 online, the second wind pressure detection sensor 32 is used to detect the wind pressure of the air flow in the return air lane 2 online, and the second gas detection sensor 33 is used to detect the wind flow parameters in the return air lane 2 online, including but not limited to detecting gas concentration, carbon dioxide concentration, carbon monoxide concentration and oxygen concentration, etc., and those skilled in the art can add or delete them according to actual conditions. In the present invention, the first monitoring substation 200 and the second monitoring substation 300 are arranged relative to each other or staggered. According to the changing trends of the airflow in the supply air lane 1 and the return air lane 2, the distance between two adjacent first monitoring substations 200 and the distance between two adjacent second monitoring substations 300 are adjusted. After determining each detection point, the first monitoring substation 200 and the second monitoring substation 300 are laid out to fully grasp the ventilation status in each lane and reduce costs.

[0053] The calculation component 61 in the present invention is respectively connected to the first monitoring substation 200 and the second monitoring substation 300 in communication, and the first monitoring substation 200 and the second monitoring substation 300 whose detection sites are closest to each other are taken as a group, and is used to respectively calculate the wind speed difference between the first wind speed detection sensor 21 and the second wind speed detection sensor 31, the wind pressure difference between the first wind pressure detection sensor 22 and the second wind pressure detection sensor 32, and the concentration difference between the first gas detection sensor 23 and the second gas detection sensor 33 of the first monitoring substation 200 and the second monitoring substation 300 at the corresponding positions. The concentration difference includes but is not limited to the gas concentration difference, the carbon dioxide concentration difference, the carbon monoxide concentration difference, the oxygen concentration difference, and the like. That is, when the first monitoring substation 200 and the second monitoring substation 300 are arranged relative to each other, the first monitoring substation 200 and the second monitoring substation 300 respectively located on opposite sides of the ore body 100 are taken as a group; when the first monitoring substation 200 and the second monitoring substation 300 are arranged alternately, the first monitoring substation 200 and the second monitoring substation 300 respectively located on opposite sides of the ore body 100 and with the shortest straight-line distance are taken as a group. The present invention uses the difference of various airflow parameters of the detection points respectively located at the corresponding positions of the supply air lane 1 and the return air lane 2 as the analysis object, which can not only more accurately reflect the overall ventilation state, but also help to improve the recycling efficiency of the return air. The reference component 62 pre-stores the wind speed threshold, wind pressure threshold and concentration threshold of the detection sites of the first monitoring substation 200 and the second monitoring substation 300 at corresponding positions, and the processing component 63 is used to compare the wind speed difference and wind speed threshold, wind pressure difference and wind pressure threshold, and concentration difference and concentration threshold of a group of first monitoring substations 200 and second monitoring substations 300 at different positions, so as to determine whether the ventilation is abnormal and determine the abnormal position.

[0054] In some embodiments, the first detection terminal 400 is provided with a first motor detection component 41, a first spindle detection component 42 and a first air volume detection component 43, which are respectively used to monitor the motor operation state, the spindle operation state, and the air volume of the first fan device 101. The second detection terminal 500 is provided with a second motor detection component 51, a second spindle detection component 52 and a second air volume detection component 53, which are respectively used to monitor the motor operation state, the spindle operation state, and the air volume of the second fan device 201. The first motor detection component 41 and the second motor detection component 51 include but are not limited to any one of a voltage detection sensor, a current detection sensor, and a motor temperature detection sensor, or a combination of at least two of them. The first spindle detection component 42 and the second spindle detection component 52 include but are not limited to any one of a horizontal vibration detection sensor, a vertical vibration detection sensor, and a spindle temperature detection sensor, or a combination of at least two of them. Those skilled in the art may also add detection sensors for other operating parameters according to actual operating conditions, and the present invention does not specifically limit this.

[0055] The device information acquisition component 64 of the present invention is respectively connected to the first detection terminal 400 and the second detection terminal 500 for respectively acquiring the working condition detection values ​​of the first fan device 101 and the second fan device 201, and transmitting them to the processing component 63. The reference component 62 respectively stores the electromechanical working condition threshold, the spindle working condition threshold and the air volume threshold of the first fan device 101, and the electromechanical working condition threshold, the spindle working condition threshold and the air volume threshold of the second fan device 201. The processing component 63 is used to respectively compare the electromechanical working condition threshold and the electromechanical working condition detection value, the spindle working condition threshold and the spindle working condition detection value, and the air volume threshold and the air volume detection value of the first fan device 101, and the electromechanical working condition threshold and the electromechanical working condition detection value, the spindle working condition threshold and the spindle working condition detection value, and the air volume threshold and the air volume detection value of the second fan device 201, so as to determine whether the equipment is faulty.

[0056] In some embodiments, the ventilation module further includes a first standby fan 102 and a second standby fan 202, and the first standby fan 102 and the second standby fan 202 are respectively arranged in the air supply lane 1 and the return air lane 2. The control module 600 is also electrically connected to the first standby fan 102 and the second standby fan 202, respectively, and is used to control the first standby fan 102 and / or the second standby fan 202 to ventilate when the first fan device 101 and / or the second fan device 201 fails. Specifically, the first standby fan 102 and the second standby fan 202 are connected to the first execution module through hardware, software and electromechanical technology commonly used in the art, so as to realize remote control of the first standby fan 102 and the second standby fan 202.

[0057] In some embodiments, the damper device 301 includes an electric damper, which is arranged near the intersection of the air supply lane 1 and the transverse lane 3, and the electric damper is rotatably connected to the transverse lane 3. The second actuator 66 is electrically connected to the electric damper to adjust the rotation angle of the electric damper, thereby adjusting the ventilation volume to ensure that the mixing ratio of return air and fresh air meets the requirements. The present invention does not specifically limit the rotation connection method of the electric damper and the transverse lane 3, and any commonly used connection method in the art can be used.

[0058] In some embodiments, a plurality of air filter plate assemblies are rotatably disposed in the purification device 302, and a plurality of air filter plate assemblies are disposed in the middle of the transverse lane 3, for filtering and purifying the return air. The air filter plate assembly is electrically connected to the second actuator 66, and the second actuator 66 is used to adjust the rotation angle of the air filter plate assembly, thereby adjusting the processing load of the purification device 302.

[0059] Furthermore, a metering component is also provided at the bottom of the air filter plate assembly, and the total amount of sediment deposited on the air filter plate assembly is obtained by measuring the weight of the air filter plate assembly. A hammering component is also movably provided on the air filter plate assembly, and the metering component and the hammering component are independently connected to the control module 600. The metering threshold of the air filter plate assembly can be pre-stored in the control module 600. When it is detected that the weight of the air filter plate assembly exceeds the metering threshold, the hammering component can be remotely controlled to clean the air filter plate assembly to avoid clogging of the air filter plate assembly.

[0060] In another specific embodiment, the present invention provides a method for monitoring and controlling ventilation failure in a coal mine, wherein the method for monitoring and controlling ventilation failure in a coal mine adopts a system for monitoring and controlling ventilation failure in a coal mine according to a specific embodiment, and the method for monitoring and controlling ventilation failure in a coal mine comprises:

[0061] S1: The ventilation status information of the supply air lane 1 and the return air lane 2, as well as the operating condition information of the first fan device 101 and the second fan device 201 are respectively obtained, and transmitted to the control module 600.

[0062] The ventilation status information includes wind speed information, wind pressure information and various gas concentration information at different detection points collected by each first monitoring substation 200 in the air supply lane 1, and wind speed information, wind pressure information and various gas concentration information at different detection points collected by each second monitoring substation 300 in the return air lane 2. The various gases include but are not limited to any one or a combination of at least two of detection gas, carbon dioxide, carbon monoxide and oxygen.

[0063] The operating condition information includes the motor operating condition information, the spindle operating condition information and the air volume information of the first fan device 101, and the motor operating condition information, the spindle operating condition information and the air volume information of the second fan device 201. The motor operating condition information specifically includes but is not limited to any one of the motor voltage information, the motor current information and the motor temperature information, or a combination of at least two of them. The spindle operating condition information includes but is not limited to horizontal vibration information and / or vertical vibration information.

[0064] S2: The control module 600 determines whether the ventilation of the ventilation module is abnormal based on the ventilation status information of the supply air lane 1 and the return air lane 2. If so, S3 is executed; otherwise, the initial ventilation status is maintained.

[0065] The calculation component 61 in the control module 600 takes the first monitoring substation 200 and the second monitoring substation 300 whose detection sites are closest to each other as a group, respectively calculates the wind speed difference between the first wind speed detection sensor 21 and the second wind speed detection sensor 31, the wind pressure difference between the first wind pressure detection sensor 22 and the second wind pressure detection sensor 32, and the concentration difference between the first gas detection sensor 23 and the second gas detection sensor 33 of the first monitoring substation 200 and the second monitoring substation 300 at the corresponding positions, and inputs them to the processing component 63. The processing component 63 extracts the wind speed threshold, wind pressure threshold and concentration threshold of the detection sites of the first monitoring substation 200 and the second monitoring substation 300 at the corresponding positions pre-stored in the reference component 62, and respectively compares the wind speed difference and wind speed threshold, wind pressure difference and wind pressure threshold, and concentration difference and concentration threshold of a group of the first monitoring substation 200 and the second monitoring substation 300 at different positions. When any of the wind speed difference, wind pressure difference and concentration difference exceeds the threshold, it can be judged that the ventilation state is abnormal and the abnormal detection point can be determined; when the wind speed difference, wind pressure difference and concentration difference do not exceed the threshold, the original ventilation state can be maintained.

[0066] S3: The control module 600 determines whether the first fan device 101 and the second fan device 201 fail based on the operating condition information. If so, a fault analysis is performed on the first fan device 101 and the second fan device 201. Otherwise, the control module 600 feedback controls the first fan device 101, the second fan device 201, the damper device 301 and the purification device 302 to respectively regulate the ventilation state of the supply air lane 1, the ventilation state of the return air lane 2, and the airflow entering the supply air lane 1 from the return air lane 2, so that the ventilation state information of the supply air lane 1 and the return air lane 2 is restored to the initial ventilation state.

[0067] The fault types of the first fan device 101 and the second fan device 201 include motor fault, main shaft fault or air outlet fault. When the first fan device 101 and / or the second fan device 201 fails, the first standby fan 102 and / or the second standby fan 202 are remotely turned on for ventilation after the fault type is determined, and then the fault problem is inspected and eliminated to ensure normal ventilation. When both the first fan device 101 and the second fan device 201 are not faulty, the ventilation state of the supply air lane 1 and / or the return air lane 2 can be adjusted by adjusting the working power of the first fan device 101 and / or the second fan device 201. In addition, by adjusting the rotation angle of the damper device 301 and / or the rotation angle of the air filter plate assembly in the purification device 302, the ventilation volume and / or quality parameters of the airflow entering the supply air lane 1 from the return air lane 2 are adjusted to ensure that each airflow parameter is within a normal range.

[0068] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A coal mine ventilation fault monitoring and control device system, characterized in that: It includes ventilation module, ventilation monitoring module, working condition monitoring module and control module; The ventilation module includes an air supply lane and a return air lane, wherein the air supply lane and the return air lane are respectively provided with a first fan device and a second fan device; the air supply lane and the return air lane are connected through a plurality of transverse lanes, wherein the transverse lanes are provided with a damper device and a purification device; The ventilation monitoring module includes a plurality of first monitoring substations and a plurality of second monitoring substations, wherein the plurality of first monitoring substations are arranged at equal intervals along the extension direction of the air supply lane, and are used to monitor the ventilation state of the air supply lane; and the plurality of second monitoring substations are arranged at equal intervals along the extension direction of the return air lane, and are used to monitor the ventilation state of the return air lane; The working condition monitoring module includes a first detection terminal and a second detection terminal, the first detection terminal is connected to the first fan device and is used to monitor the working state of the first fan device; the second detection terminal is connected to the second fan device and is used to monitor the working state of the second fan device; The control module includes a computing component, a reference component, a processing component, an equipment information acquisition component, a first execution component and a second execution component. The processing component is electrically connected to the computing component, the reference component, the equipment information acquisition component, the first execution component and the second execution component respectively. The computing component is communicatively connected to the ventilation monitoring module. The equipment information acquisition component is communicatively connected to the operating condition monitoring module. The first execution component is respectively connected to the first fan device and the second fan device. The second execution component is respectively connected to the damper device and the purification device.

2. The coal mine ventilation fault monitoring and control device system according to claim 1, characterized in that: The first monitoring substation is provided with a first wind speed detection sensor, a first wind pressure detection sensor and a first gas detection sensor; The second monitoring substation is provided with a second wind speed detection sensor, a second wind pressure detection sensor and a second gas detection sensor; Preferably, the first monitoring substation and the second monitoring substation are arranged opposite to each other or staggered.

3. The coal mine ventilation fault monitoring and control device system according to claim 2, characterized in that: The calculation component is respectively connected to the first monitoring substation and the second monitoring substation for respectively calculating the wind speed difference between the first wind speed detection sensor and the second wind speed detection sensor, the wind pressure difference between the first wind pressure detection sensor and the second wind pressure detection sensor, and the concentration difference between the first gas detection sensor and the second gas detection sensor of the first monitoring substation and the second monitoring substation at corresponding positions; The reference component pre-stores a wind speed threshold, a wind pressure threshold and a concentration threshold; The processing component is used to compare the wind speed threshold and the wind speed difference, the wind pressure threshold and the wind pressure difference, and the concentration threshold and the concentration difference, respectively, to determine whether the ventilation is abnormal and determine the abnormal location.

4. The coal mine ventilation fault monitoring and control device system according to claim 1, characterized in that: The first detection terminal is provided with a first motor detection component, a first spindle detection component and a first air volume detection component; The second detection terminal is provided with a second motor detection component, a second spindle detection component and a second air volume detection component.

5. The coal mine ventilation fault monitoring and control device system according to claim 4, characterized in that: The device information acquisition component is respectively connected to the first detection terminal and the second detection terminal for respectively acquiring the working condition detection values ​​of the first fan device and the second fan device, and transmitting the values ​​to the processing component; The reference component pre-stores an electromechanical condition threshold, a spindle condition threshold and an air volume threshold; The processing component is used to compare the electromechanical operating condition threshold, the spindle operating condition threshold and the air output threshold with their corresponding thresholds to determine whether the equipment is faulty.

6. The coal mine ventilation fault monitoring and control device system according to claim 5, characterized in that: The ventilation module further includes a first backup fan and a second backup fan, wherein the first backup fan and the second backup fan are respectively arranged in the air supply lane and the return air lane; The control module is also electrically connected to the first backup fan and the second backup fan respectively, and is used to control the first backup fan and / or the second backup fan to ventilate when a device fails.

7. The coal mine ventilation fault monitoring and control device system according to claim 1, characterized in that: The damper device comprises an electric damper, the electric damper is rotatably connected to the transverse lane, and the second actuator is electrically connected to the electric damper for adjusting the rotation angle of the electric damper; Preferably, the electric damper is arranged near the intersection of the air supply lane and the transverse lane.

8. The coal mine ventilation fault monitoring and control device system according to claim 1, characterized in that: A plurality of air filter plate assemblies are rotatably arranged in the purification device, and the air filter plate assemblies are electrically connected to the second actuator assembly, and the second actuator assembly is used to adjust the rotation angle of the air filter plate assembly; Preferably, a plurality of air filter plate assemblies are arranged in the middle of the transverse lane; Preferably, a metering component is further provided at the bottom of the air filter plate assembly, and a hammering component is also movably provided on the air filter plate assembly, and the metering component and the hammering component are independently connected to the control module.

9. The coal mine ventilation fault monitoring and control device system according to claim 1, characterized in that: The control module, the ventilation module, the ventilation monitoring module and the working condition monitoring module communicate with each other via an Ethernet ring network.

10. A method for monitoring and controlling ventilation failure in a coal mine, characterized in that: The coal mine ventilation fault monitoring and control method adopts the coal mine ventilation fault monitoring and control device system according to any one of claims 1 to 9, and the coal mine ventilation fault monitoring and control method comprises: S1: respectively obtaining ventilation status information of the supply air lane and the return air lane, and operating condition information of the first fan device and the second fan device, and transmitting them to the control module; S2: The control module determines whether the ventilation of the ventilation module is abnormal according to the ventilation status information of the air supply lane and the return air lane. If so, S3 is executed. Otherwise, the initial ventilation state is maintained. S3: The control module determines whether the first fan device and the second fan device fail according to the operating condition information. If so, a fault analysis is performed on the first fan device and the second fan device. Otherwise, the control module feedback controls the first fan device, the second fan device, the damper device and the purification device to regulate the air flow entering the supply air lane, and regulates the ventilation state of the supply air lane, the ventilation state of the return air lane, and the air flow entering the supply air lane from the return air lane, so that the ventilation state information of the supply air lane and the return air lane is restored to the initial ventilation state.

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