Underground coal mine pressure monitoring device

Abstract

The utility model provides an underground mine pressure monitoring device for a coal mine. The underground mine pressure monitoring device comprises a ground master control terminal, a distributed monitoring base station and a detection terminal, the detection terminal is arranged in an underground working area and comprises an optical fiber pressure sensor, an optical fiber displacement sensor, an optical fiber temperature sensor, an optical fiber vibration sensor and a plurality of gas concentration sensors; the distributed monitoring base station is provided with a signal mediation assembly, a processor assembly, a wireless transmission assembly, an underground alarm assembly and a power supply. The ground master control terminal comprises an upper computer and a ground alarm assembly, the upper computer is in communication connection with the wireless transmission assembly, and the ground alarm assembly is electrically connected with the underground alarm assembly. According to the utility model, on-line automatic monitoring of pressure, displacement, temperature, vibration, gas concentration and other multi-information of the top plate in the underground coal mine working area is realized, and high accuracy and reliability are realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of underground safety detection, and relates to a coal mine underground mine pressure monitoring device. BACKGROUND

[0002] Roof disaster refers to roof deformation, fracture or collapse caused by periodic fracture of roof strata, loss of support force, pressure balance destruction and other reasons in the process of coal mining, which can easily cause serious casualties and equipment loss. In the underground coal working area, supports are generally used to support and protect the roof. However, due to the complex process of coal production, the use of more equipment, and the harsh production environment and special topography, roof disasters occur frequently, seriously affecting the safe and efficient mining of coal and the safety of personnel and equipment.

[0003] In the prior art, the main prevention and control means for roof accidents is mine pressure monitoring, that is, detecting the pressure change of the roof strata to analyze and predict the stability of the roof strata. However, the existing mine pressure online monitoring system has the disadvantages of poor system universality and stability, low safety, low comprehensive integration, and cannot meet the needs of safe and efficient production of coal mines. In addition, the sensors used in conventional mine pressure detection are easily affected by electromagnetic interference, have low monitoring accuracy and poor data reliability, and cannot meet the requirements of long-term monitoring. In addition, affected by the underground production environment and equipment, the data feedback of the monitoring system is not timely, and there is a delay, which makes the personnel on the surface unable to accurately grasp the current mine pressure situation, prolongs the reaction time when the disaster occurs, and easily leads to serious accidents.

[0004] Therefore, it is necessary to provide a mine pressure monitoring system that can overcome the poor reliability of existing mine pressure monitoring and cannot timely and accurately feedback abnormal problems. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a coal mine underground mine pressure monitoring device based on distributed optical fiber technology, which realizes online automatic monitoring of multiple information such as roof pressure, displacement, temperature and vibration of the underground working area of the coal mine, and has high accuracy and reliability.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a coal mine underground mine pressure monitoring devices, coal mine underground mine pressure monitoring devices include ground master control terminal, distributed monitoring base station and detection terminal, detection terminal setting is in the underground working area, and detection terminal includes optical fiber pressure sensor, optical fiber displacement sensor, optical fiber temperature sensor, optical fiber vibration sensor and a plurality of gas concentration sensors, distributed monitoring base station is provided with signal mediation assembly, processor assembly, wireless transmission assembly, underground alarm assembly and power supply, signal mediation assembly connects detection terminal with processor assembly respectively, processor assembly still electric connection underground alarm assembly with wireless transmission assembly respectively, power supply electric connection signal mediation assembly, processor assembly, wireless transmission assembly and underground alarm assembly respectively, ground master control terminal includes host computer and well alarm assembly, host computer communication connection wireless transmission assembly, well alarm assembly electric connection underground alarm assembly.

[0008] As an optimal technical scheme of the utility model, the detection terminal further comprises a fiber terminal box, the fiber pressure sensor, the fiber displacement sensor, the fiber temperature sensor and the fiber vibration sensor are independently connected to the fiber terminal box through fiber wires, and the fiber terminal box is connected to the signal mediation assembly through a transmission optical cable.

[0009] The utility model is based on optical fiber technology and can monitor the pressure, displacement, temperature and vibration of the roof of the underground working area, has high anti-interference capability, wide measurement range and high data reliability, and improves the accuracy of mine pressure detection.

[0010] As an optimal technical scheme of the utility model, the plurality of gas concentration sensors are equidistantly arranged and independently connected to the processor assembly.

[0011] As an optimal technical scheme of the utility model, the distributed monitoring base station further comprises a cloud camera device, and the cloud camera device is connected to the wireless transmission assembly.

[0012] The utility model uses the cloud camera device to collect image information in the detection area of the underground working area, and the angle of the cloud camera device can be adjusted to take pictures of the whole area and obtain complete, clear and multi-directional image information.

[0013] As an optimal technical scheme of the utility model, the distributed monitoring base station further comprises a GPS (Global Positioning System) positioning device, and the GPS locator is connected to the host computer.

[0014] The utility model discloses a precise positioning of the distributed monitoring base station under the well, so that the well staff can obtain the position of the detection area of abnormality in time, and make emergency plan quickly.

[0015] As an optimal technical scheme of the utility model, the wireless transmission component connects the upper computer through Zigbee wireless network.

[0016] The utility model discloses data transmission distance is far, and data transmission speed is fast, and the well staff can quickly summarize, analyze and process data, and greatly improve work efficiency.

[0017] As an optimal technical scheme of the utility model, the power supply includes the intrinsically safe power box.

[0018] The utility model adopts the power supply operation of the distributed monitoring base station of intrinsically safe power box, has good explosion -proof performance and security, guarantees the high efficiency and sustainability of monitoring work.

[0019] As an optimal technical scheme of the utility model, the processor component includes PLC (programmable logic control processor, Programmable Logic Controller) processor or DCS processor (distributed control processor, Distributed Control System).

[0020] As an optimal technical scheme of the utility model, the upper computer is provided with man -machine interface.

[0021] The utility model discloses the terminal of the staff in the coal mine well operation and monitoring, through setting up man -machine interface implementation accurate operation, and establish complete communication network in whole inspection area, realize two -way data interaction.

[0022] As an optimal technical scheme of the utility model, the underground alarm component includes audible -visual alarm, and the well alarm component includes voice alarm.

[0023] The utility model can realize the linkage alarm of the well and the well when discovering the mine pressure anomaly of the well work area, so that the well staff and the well staff can quickly simultaneously dispatch command, and improve production efficiency.

[0024] Compared with the prior art, the utility model has the beneficial effects that:

[0025] The coal mine underground mine pressure monitoring device provided by the utility model carries out online automatic monitoring on the multiple information such as the roof pressure, displacement, temperature, vibration and environmental gas concentration of the coal mine underground working area, has the characteristics of wide measuring range, high anti-interference capability and strong reliability, is not easily affected by the environment, can accurately and timely feedback the collected data and greatly improves the efficiency of the monitoring work. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The coal mine underground mine pressure monitoring device is provided for one specific embodiment of the utility model.

[0027] Among them, 100-ground master control terminal; 11-host computer; 12-above alarm assembly; 200-distributed monitoring base station; 21-signal mediation assembly; 22-processor assembly; 23-wireless transmission assembly; 24-underground alarm assembly; 25-power supply; 26-GPS locator; 27-zhiyitai camera device; 31-optical fiber pressure sensor; 32-optical fiber displacement sensor; 33-optical fiber temperature sensor; 34-optical fiber vibration sensor; 35-gas concentration sensor; 36-optical fiber terminal box. DETAILED DESCRIPTION

[0028] It should be understood that, in the description of the utility model, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of "multiple" and "several" is two or more.

[0029] It should be noted that, in the description of the utility model, unless otherwise specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0030] The technical scheme of the utility model will be further described below in combination with the drawings and through specific embodiments.

[0031] In one specific embodiment, the utility model provides a coal mine underground mine pressure monitoring device, such asFigure 1 As shown, it comprises a ground master terminal 100, a distributed monitoring base station 200 and a detection terminal. The detection terminal is arranged in a downhole working area, which is a working area for comprehensive mechanization and automation of coal mining operations downhole, has a roadway rock wall and roof, and the roof is supported by hydraulic support to avoid the problem of roof deformation, fracture or collapse caused by pressure change. The detection terminal comprises a fiber optic pressure sensor 31, a fiber optic displacement sensor 32, a fiber optic temperature sensor 33, a fiber optic vibration sensor 34 and a plurality of gas concentration sensors 35. The fiber optic pressure sensor 31 is arranged on the hydraulic support of the roof for collecting pressure data; the fiber optic displacement sensor 32, the fiber optic temperature sensor 33 and the fiber optic vibration sensor 34 are independently fixedly installed on the roof for collecting roof displacement data, temperature data and vibration data, respectively; the gas concentration sensor 35 is used to collect gas concentration data in the environment so as to comprehensively analyze the mine pressure change condition by the staff. The distributed monitoring base station 200 is provided with a signal mediation assembly 21, a processor assembly 22, a wireless transmission assembly 23, an underground alarm assembly 24 and a power supply 25. The signal mediation assembly 21 is connected to the detection terminal and the processor assembly 22, respectively, the processor assembly 22 is also electrically connected to the underground alarm assembly 24 and the wireless transmission assembly 23, respectively, and the power supply 25 is electrically connected to the signal mediation assembly 21, the processor assembly 22, the wireless transmission assembly 23 and the underground alarm assembly 24, respectively, for providing electric energy and ensuring continuous monitoring. The ground master terminal 100 comprises an upper computer 11 and an uphole alarm assembly 12, the upper computer 11 is communicatively connected to the wireless transmission assembly 23, and the uphole alarm assembly 12 is electrically connected to the underground alarm assembly 24 to realize the linkage alarm of uphole and downhole. The distributed monitoring base station 200 is used to receive the data information collected by the detection terminal and upload it to the ground master terminal 100 through the wireless transmission assembly 23, and the ground master terminal 100 is used as a terminal for operation and monitoring of the uphole staff to realize data interaction with the distributed monitoring base station 200 downhole.

[0032] The utility model can set multiple distributed monitoring base stations 200 and detection terminals according to the size of the downhole working area, divide the downhole working area into multiple unit detection areas, independently set a group of distributed monitoring base stations 200 and detection terminals in each unit detection area for partition monitoring, and use the ground master terminal 100 for centralized management of data.

[0033] In some embodiments, the detection terminal further comprises a fiber terminal box 36, the fiber pressure sensor 31, the fiber displacement sensor 32, the fiber temperature sensor 33 and the fiber vibration sensor 34 are independently connected to the fiber terminal box 36 through fiber wires, and the fiber terminal box 36 is connected to the signal processing component 21 through a transmission optical cable. The fiber pressure sensor 31, the fiber displacement sensor 32, the fiber temperature sensor 33 and the fiber vibration sensor 34 transmit the collected optical wave detection signals to the signal processing component 21 through the transmission optical cable, and the signal processing component 21 is used to convert the optical wave detection signals into digital signals and upload them to the processor component 22 for storage. A plurality of gas concentration sensors 35 are arranged at equal intervals along the length direction of the detection area and are independently connected to the processor component 22. The gas concentration sensors 35 collect gas concentration data in the environment and transmit them to the processor component 22. When the roof of the underground working face suddenly deforms or breaks, it is easy to cause instantaneous gas gushing, resulting in gas overrun or imbalance, which has a large safety hazard. The utility model discloses a real-time monitoring of the gas concentration to timely find abnormal conditions, so that the staff can more comprehensively master the underground mine pressure state. The processor component 22 can be pre-set with the limit value of the above-mentioned multi-element data signal. When any one of the data signals collected by the detection terminal exceeds the corresponding limit value, the processor component 22 triggers the underground alarm component 24 to issue an alarm.

[0034] In some embodiments, the processor component 22 of the distributed monitoring base station 200 comprises a PLC processor or a DCS processor, which is used to receive and store the multi-element digital signals collected by the detection terminal, and transmit them to the upper computer 11 through the wireless transmission component 23, and trigger the underground alarm component 24 to issue corresponding alarms according to the digital signals. The underground alarm component 24 comprises an audible and visual alarm, which can be a combination of an indicator light and a loudspeaker. The wireless transmission component 23 connects the upper computer 11 through a Zigbee wireless network, which has the characteristics of long transmission distance, large transmission data volume, fast transmission speed and strong stability. The Zigbee wireless network necessarily comprises a coordinator and a router commonly used in the art, which are necessary for realizing the integrity of the process. The coordinator and the router are electrically connected, and the router is connected to the wireless transmission component 23 to realize wireless data transmission. The power supply 25 comprises an intrinsically safe power supply box, which can provide stable power to the distributed monitoring base station 200 to ensure continuous monitoring.

[0035] Further, the distributed monitoring base station 200 is further provided with a holder camera 27, the holder camera 27 is in communication connection with the wireless transmission component 23. The shooting angle of the holder camera 27 can be adjusted according to actual conditions, so as to globally take image information. Due to the complexity of the working area environment, the rock mass of the roadway rock wall and roof is prone to crack or fall off, the utility model utilizes the holder camera 27 to assist in obtaining the rock mass image information in the working area, so that the staff can comprehensively analyze, which greatly reduces the safety hidden danger caused by rock mass damage. In order to improve the shooting definition of the holder camera 27, a plurality of auxiliary light sources can be arranged along the periphery of the holder camera 27 to provide illumination, LED (Light-Emitting Diode) lamps can be used to overcome the shooting in the dark environment of the well.

[0036] Further, the distributed monitoring base station 200 is further provided with a GPS locator 26, the GPS locator is connected with the host computer 11, realizes accurate positioning, determines the monitoring area of the mine pressure anomaly, and facilitates the rapid scheduling management of the staff on the well and the staff in the well.

[0037] In some embodiments, the host computer 11 is provided with a man-machine interaction interface, and the timely and accurate early warning of the mine pressure anomaly is realized through the man-machine interaction mode, so that the staff can quickly take effective measures, and the operation of the staff on the well and the staff in the well is more safely. The well alarm component 12 includes a voice alarm. The well alarm component 12 of the utility model realizes the linkage alarm function with the downhole alarm component 24 through the general software and hardware and electromechanical control technology in the art, and the downhole and the well simultaneously issue a prompt once the mine pressure anomaly is detected.

[0038] The applicant declares that the above description is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and the skilled person in the art should understand that any change or replacement within the technical range disclosed by the utility model can be easily thought by any person skilled in the art in the technical field, and falls within the protection scope and disclosure range of the utility model.

Claims

1. A coal mine underground mine pressure monitoring device, characterized in that, The coal mine underground mine pressure monitoring device includes a ground master control terminal, a distributed monitoring base station and a detection terminal; the detection terminal is arranged in an underground working area, and the detection terminal includes a fiber optic pressure sensor, a fiber optic displacement sensor, a fiber optic temperature sensor, a fiber optic vibration sensor and a plurality of gas concentration sensors; the distributed monitoring base station is provided with a signal mediation assembly, a processor assembly, a wireless transmission assembly, an underground alarm assembly and a power supply; the signal mediation assembly is connected with the detection terminal and the processor assembly respectively, the processor assembly is further electrically connected with the underground alarm assembly and the wireless transmission assembly respectively, and the power supply is electrically connected with the signal mediation assembly, the processor assembly, the wireless transmission assembly and the underground alarm assembly respectively; the ground master control terminal includes an upper computer and an uphole alarm assembly, the upper computer is communicatively connected with the wireless transmission assembly, and the uphole alarm assembly is electrically connected with the underground alarm assembly.

2. The coal mine underground mine pressure monitoring device according to claim 1, characterized in that, The detection terminal further includes a fiber optic terminal box, the fiber optic pressure sensor, the fiber optic displacement sensor, the fiber optic temperature sensor and the fiber optic vibration sensor are independently connected with the fiber optic terminal box through fiber optic wires, and the fiber optic terminal box is connected with the signal mediation assembly through a transmission optical cable.

3. The coal mine underground mine pressure monitoring device according to claim 1, characterized in that, The plurality of gas concentration sensors are equidistantly arranged and independently communicatively connected with the processor assembly.

4. The coal mine underground mine pressure monitoring device according to claim 1, characterized in that, The distributed monitoring base station is further provided with a cloud platform camera device, and the cloud platform camera device is communicatively connected with the wireless transmission assembly.

5. The coal mine underground mine pressure monitoring device according to claim 1, characterized in that, The distributed monitoring base station is further provided with a GPS locator, and the GPS locator is connected with the upper computer.

6. The coal mine underground mine pressure monitoring device according to claim 1, characterized in that, The wireless transmission assembly is connected with the upper computer through a Zigbee wireless network.

7. The coal mine underground mine pressure monitoring device according to claim 1, characterized in that, The power supply includes an intrinsic safety power supply box.

8. The coal mine underground mine pressure monitoring device according to claim 1, characterized in that, The processor assembly includes a PLC processor or a DCS processor.

9. The coal mine underground mine pressure monitoring device according to claim 1, characterized in that, The upper computer is provided with a man-machine interaction interface.

10. The coal mine underground mine pressure monitoring device according to claim 9, characterized in that, The underground alarm assembly includes an audible and visual alarm, and the uphole alarm assembly includes a voice alarm.

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