Coal mine underground drilling on-line monitoring device system

Abstract

The utility model provides a coal mine underground drilling on-line monitoring device system which comprises a drilling main body and a monitoring shell which are movably connected, the drilling main body is provided with an air inlet pipeline and an air outlet pipeline, an air inlet detection cavity channel and an air outlet detection cavity channel are arranged in the monitoring shell, the air inlet detection cavity channel is communicated with the air inlet pipeline, and the air outlet detection cavity channel is communicated with the air outlet pipeline. The air outlet detection cavity channel is communicated with the air outlet pipeline; a first flow detection assembly, a first pressure detection assembly and a first temperature detection assembly are arranged in the air inlet detection cavity channel, and a second flow detection assembly, a second pressure detection assembly, a gas detection assembly and a dust detection assembly are arranged in the air outlet detection cavity channel. A second temperature detection assembly and an obstacle detection assembly are further arranged on the peripheral wall of the monitoring shell. The device is high in detection speed and high in detection accuracy, and the automation degree of the coal mine drilling equipment is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine drilling, and relates to an on-line monitoring device system for underground coal mine drilling. Background Technique

[0002] Drilling holes underground in coal mines is one of the important means for gas control, water exploration and drainage, and formation grouting reinforcement. The construction environment underground in coal mines is harsh, the working distance is long, and the safety is poor, which often causes the drill bit to deviate, the borehole to incline, and the hole trajectory to be difficult to accurately control during the drilling process, resulting in the drilling accuracy not meeting the requirements. In addition, during the drilling construction process, due to the large dust content in the hole, it not only endangers the physical health of construction workers, but also easily causes combustion or explosion, seriously affecting underground work. Moreover, the friction between the drill pipe and the coal seam generates heat, which is also likely to cause the coal seam to catch fire, with relatively high safety risks. Therefore, it is very important to monitor the working state during the drill pipe drilling process.

[0003] CN114293936A discloses a drilling state monitoring device and monitoring method for a drilling rig, including a borehole attitude monitoring unit arranged between the drill bit and the drill pipe, and a borehole drilling fluid pressure monitoring unit arranged between the water swivel and the drilling fluid supply hose; the borehole attitude monitoring unit is used to measure, store and transmit borehole attitude parameters, and the borehole drilling fluid pressure monitoring unit is used to measure, store and transmit drilling fluid pressure parameters, that is, to complete the measurement of borehole drilling fluid and borehole attitude during the drilling state process of the drilling rig, and to understand the entire process of borehole drilling in real time. CN212249841U discloses a system for monitoring borehole verticality and deviation correction during drilling, including a borehole, a drilling rig main body and a computer terminal. The drilling rig main body is fixedly arranged on the ground at the upper end of the borehole. The working end of the drilling rig main body is fixedly provided with a drill pipe. The lower end of the drill pipe extends to the inner end of the borehole, and the lower end of the drill pipe is provided with a drill bit. The top end of the drill bit is fixedly provided with a hydraulic deviation correction device. The bottom end of the drill pipe is fixedly connected to the center of the top end of the hydraulic deviation correction device. The inner end of the drill bit is fixedly provided with a verticality inductor, which ensures the hole forming quality and construction efficiency.

[0004] However, the types of monitoring parameters of the existing borehole state monitoring devices are relatively single, unable to accurately reflect the operating state of the drilling system, ignoring the detection of the environmental state during the drilling process, with a low safety factor, low automation degree, and untimely information feedback. Therefore, it is necessary to improve the comprehensiveness of detection to timely and accurately master the working state of drilling, provide operation guidance for the staff, and ensure the safe, efficient and stable progress of the drilling process. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide an on-line monitoring device system for underground drilling in coal mines, which has a fast detection speed, a high detection accuracy rate, and strong applicability, solves the problem of safety risk monitoring during the drilling process, and improves the automation degree of coal mine drilling equipment.

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

[0007] The present utility model provides an on-line monitoring device system for underground drilling in coal mines. The on-line monitoring device system for underground drilling in coal mines includes a drilling main body and a monitoring housing that are movably connected. The drilling main body is provided with an air inlet pipe and an air outlet pipe. An air inlet detection chamber and an air outlet detection chamber are arranged in the monitoring housing. The air inlet detection chamber communicates with the air inlet pipe, and the air outlet detection chamber communicates with the air outlet pipe. A first flow rate detection component, a first pressure detection component, and a first temperature detection component are arranged in the air inlet detection chamber. A second flow rate detection component, a second pressure detection component, a gas detection component, and a dust detection component are arranged in the air outlet detection chamber. A second temperature detection component and an obstacle detection component are further arranged on the outer peripheral wall of the monitoring housing.

[0008] In the present utility model, the air inlet pipe is used to input air flow into the drill hole formed by the drilling main body, and the air outlet pipe is used to discharge the air flow in the drill hole, realizing the real-time monitoring of the states of the air inlet air flow and the air outlet air flow and the drill hole environment, so as to discover and identify abnormal or faulty conditions in the drill hole area, avoid safety accidents, ensure the smooth operation of the drilling work, and guarantee the construction safety.

[0009] As a preferred technical solution of the present utility model, a first communication component is further arranged in the air inlet detection chamber, and the first communication component is electrically connected to the first flow rate detection component, the first pressure detection component, and the first temperature detection component respectively.

[0010] A second communication component is further arranged in the air outlet detection chamber, and the second communication component is electrically connected to the second flow rate detection component, the second pressure detection component, the gas detection component, and the dust detection component respectively.

[0011] A third communication component is further arranged on the outer peripheral wall of the monitoring housing, and the third communication component is electrically connected to the second temperature detection component and the obstacle detection component respectively.

[0012] As a preferred technical solution of the present utility model, the on-line monitoring device system for underground drilling in coal mines further includes a controller. The controller is arranged outside the drilling main body, and the controller is electrically connected to the first communication component, the second communication component, and the third communication component respectively.

[0013] The controller of the present utility model serves as a terminal for staff operation and monitoring, establishing a complete communication network within the entire inspection area to achieve data interaction. The first communication component transmits the air flow states in the intake air detection channels collected by different detection components to the controller, the second communication component transmits the air flow states in the exhaust air detection channels collected by different detection components to the controller, and the third communication component transmits the environmental states of the drilling area collected to the controller, so that the staff can check and perform emergency treatment on the drilling operation status.

[0014] As a preferred technical solution of the present utility model, an azimuth angle detection component and a displacement detection component are further provided in the monitoring housing. The azimuth angle detection component and the displacement detection component are independently and movably connected to the drilling main body; the third communication component is also electrically connected to the azimuth angle detection component and the displacement detection component respectively.

[0015] As a preferred technical solution of the present utility model, the azimuth angle detection component includes a measuring rod and an inclination sensor. The measuring rod is arranged parallel to the drilling main body, and the inclination sensor is fixedly connected to the measuring rod for detecting the inclination angle of the measuring rod.

[0016] By detecting the inclination angle of the measuring rod, the present utility model can accurately judge whether the drilling main body is offset, ensure the perpendicularity of drilling, and improve the quality of drilling construction.

[0017] As a preferred technical solution of the present utility model, the obstacle detection component includes at least two ultrasonic sensors. At least two of the ultrasonic sensors are evenly distributed along the outer periphery of the monitoring housing; the detection directions of at least two of the ultrasonic sensors are different from each other.

[0018] The present utility model uses ultrasonic sensors located at different positions to perform all-round obstacle avoidance detection on the drilling process, avoid the occurrence of detection blind areas, and ensure the long-term smooth operation of the drilling work.

[0019] As a preferred technical solution of the present utility model, a warning component is further provided on the monitoring housing, and the warning component is electrically connected to the obstacle detection component.

[0020] In the present utility model, when the obstacle detection component detects that there is an obstacle interference in the drilling area, the warning component is triggered to issue an alarm, so that the staff can quickly make an intervention and remove the obstacle to avoid damage to the equipment.

[0021] As a preferred technical solution of the present utility model, the warning component includes an acoustic alarm, an optical alarm or an image display warning device.

[0022] As a preferred technical solution of the present utility model, a clamping chuck is provided at the bottom of the monitoring housing. The clamping chuck includes a clamping portion and a fixing portion. The clamping portion is sleeved on the outer periphery of the drilling main body, and the fixing portion is connected to the monitoring housing.

[0023] As a preferred technical solution of the present utility model, the gas detection component includes a gas chromatograph analyzer, an ultraviolet spectrum analyzer or an infrared spectrum analyzer.

[0024] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0025] The present utility model provides a coal mine underground drilling online monitoring device system, which realizes the online detection of the drilling environment and drilling work, has the advantages of rapid detection and high accuracy, so that the staff can timely identify fault problems and intervene to eliminate the faults, improves the automation of risk detection, and effectively guarantees the safety of the drilling work. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the coal mine underground drilling online monitoring device system provided for a specific embodiment of the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the monitoring housing provided for a specific embodiment of the present utility model.

[0028] Wherein, 1 - drilling main body; 2 - air inlet pipe; 3 - air outlet pipe; 4 - monitoring housing; 5 - air inlet detection cavity; 6 - air outlet detection cavity; 51 - first flow detection component; 52 - first pressure detection component; 53 - first temperature detection component; 54 - first communication component; 61 - second flow detection component; 62 - second pressure detection component; 63 - gas detection component; 64 - dust detection component; 65 - second communication component; 71 - second temperature detection component; 72 - ultrasonic sensor; 73 - third communication component; 74 - azimuth detection component; 75 - displacement detection component; 76 - warning component; 8 - clamping chuck; 81 - clamping portion; 82 - fixing portion. Detailed Embodiments

[0029] It should be understood that, in the description of the present utility model, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply 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 utility model. 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 utility model, unless otherwise specified, "multiple" means two or more.

[0030] 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0032] In a specific embodiment, the utility model provides an online monitoring device system for underground drilling in a coal mine, such as Figure 1 As shown, it includes a drilling body 1, a monitoring shell 4 and a controller. The monitoring shell 4 is movably connected to the drilling body 1, and the controller is located outside the drilling body 1.

[0033] The drilling body 1 is provided with an air inlet duct 2 and an air outlet duct 3. The air inlet duct 2 is used to input airflow into the borehole formed by the drilling body 1, and the air outlet duct 3 is used to discharge the airflow in the borehole. In addition, the drilling body 1 must also include drill rods, drill bits, necessary pipelines and cables, linkages and power equipment, etc. that are well known to those skilled in the art for realizing a complete process, but the above content does not belong to the main improvement points of the utility model. Those skilled in the art can add layouts or delete them based on the process flow and equipment structure selection, and the utility model does not make special requirements and specific limitations on this. In order to further improve the construction safety, the outlet of the air outlet duct 3 of the utility model can also be provided with a gas purification device to purify the outlet air flow, avoid direct discharge to pollute the environment, and prevent harm to the staff.

[0034] The controller in the present utility model can be arranged on the operation platform outside the drilling main body 1, including but not limited to the commonly used single-chip microcomputer, communication interface, memory, display, etc. in the art, and can realize functions such as data information reception, parameter setting and query, real-time display, etc.

[0035] As Figure 2 shown, an air inlet detection chamber 5 and an air outlet detection chamber 6 are arranged in the monitoring housing 4. The air inlet detection chamber 5 communicates with the air inlet pipe 2, and the air outlet detection chamber 6 communicates with the air outlet pipe 3. The monitoring housing 4 adopts an explosion-proof structure to adapt to the work in coal mines and ensure safety performance. A first flow detection component 51, a first pressure detection component 52 and a first temperature detection component 53 are arranged in the air inlet detection chamber 5, and a second flow detection component 61, a second pressure detection component 62, a gas detection component 63 and a dust detection component 64 are arranged in the air outlet detection chamber 6. A second temperature detection component 71 and an obstacle detection component are further arranged on the outer peripheral wall of the monitoring housing 4. The first flow detection component 51, the first pressure detection component 52 and the first temperature detection component 53 are used to detect the flow rate, pressure and temperature of the air inlet air flow respectively; the second flow detection component 61, the second pressure detection component 62, the gas detection component 63 and the dust detection component 64 are used to detect the flow rate, pressure, various gas concentrations and dust concentrations of the air outlet air flow respectively; the second temperature detection component 71 is used to detect the temperature in the drilling area, and the obstacle detection component is used to detect obstacles in the drilling area in all directions.

[0036] In some embodiments, a first communication component 54 is further arranged in the air inlet detection chamber 5. The first communication component 54 is electrically connected to the first flow detection component 51, the first pressure detection component 52, the first temperature detection component 53 and the controller respectively, and is used to transmit data information such as the flow rate, pressure and temperature of the air inlet air flow collected to the controller. A second communication component 65 is further arranged in the air outlet detection chamber 6. The second communication component 65 is electrically connected to the second flow detection component 61, the second pressure detection component 62, the gas detection component 63, the dust detection component 64 and the controller respectively, and is used to transmit data information such as the flow rate, pressure, various gas concentrations and dust concentrations of the air inlet and outlet air flows collected to the controller. Specifically, the gas detection component 63 includes a gas chromatograph analyzer, an ultraviolet spectrum analyzer or an infrared spectrum analyzer, and the detected gases of the gas detection component 63 include but not limited to carbon monoxide, oxygen, hydrogen, hydrogen sulfide, methane, etc.

[0037] In some embodiments, a third communication component 73 is further provided on the outer peripheral wall of the monitoring housing 4. The third communication component 73 is electrically connected to the second temperature detection component 71, the obstacle detection component and the controller respectively, and is used to transmit the acquired temperature data information in the drilling area and the situation of nearby obstacles to the controller, so that the staff can check and perform emergency treatment on the drilling operation status. Specifically, the obstacle detection component includes at least two ultrasonic sensors 72, and the at least two ultrasonic sensors 72 are evenly distributed along the outer periphery of the monitoring housing 4; the detection directions of the at least two ultrasonic sensors 72 are different from each other. The utility model comprehensively covers the obstacle avoidance detection during the drilling process through the ultrasonic sensors 72 located at different positions, ensuring the long-term smooth operation of the drilling work. The ultrasonic sensor 72 in the utility model is a commonly used sensor based on ultrasonic signal conversion in the art, which has the characteristics of high frequency and short wavelength, realizes directional propagation and detection, and identifies whether there are obstacles in the detection area. The utility model does not specifically limit the number and layout angle of the ultrasonic sensors 72, and those skilled in the art can adjust according to the size and shape of the monitoring housing 4, etc., so that the detection directions of the multiple ultrasonic sensors 72 are different from each other and comprehensively cover the area.

[0038] In order to further improve the obstacle avoidance effect, a camera can also be provided on the monitoring housing 4 of the utility model to obtain image information of the drilling area environment. Further, the camera can be rotatably arranged on the monitoring housing 4 so that it rotates at a set angle at regular intervals to realize 360° comprehensive image acquisition, to assist in identifying obstacles and the sizes of obstacles, so that the staff can adopt corresponding emergency measures to accurately remove the obstacles.

[0039] In some embodiments, a warning component 76 is further provided on the monitoring housing 4, and the warning component 76 is electrically connected to the obstacle detection component. Specifically, the warning component 76 includes an acoustic alarm, an optical alarm or an image display warning device. When the obstacle detection component detects that there are obstacles interfering in the drilling area, the warning component 76 is triggered to issue an alarm, so that the staff can quickly make an intervention and remove the obstacles to avoid damage to the equipment.

[0040] In some embodiments, an azimuth angle detection component 74 and a displacement detection component 75 are further disposed in the monitoring housing 4. The azimuth angle detection component 74 and the displacement detection component 75 are independently and movably connected to the drilling main body 1. Specifically, the azimuth angle detection component 74 includes a measuring rod and an inclination sensor. The measuring rod is arranged parallel to the drilling main body 1, and the inclination sensor is fixedly connected to the measuring rod for detecting the inclination angle of the measuring rod, so as to accurately judge whether the drilling main body 1 is offset, ensure the verticality of drilling, and improve the quality of borehole construction. The displacement detection component 75 is used to detect the propulsion movement amount and / or acceleration of the drilling main body 1. The type of the displacement detection component 75 of the present utility model is not specifically limited, and the displacement detection component 75 commonly used by those skilled in the art can be adopted, including but not limited to a laser sensor, an ultrasonic sensor 72 or an infrared sensor, etc. The third communication component 73 is also electrically connected to the azimuth angle detection component 74 and the displacement detection component 75 respectively, for transmitting data information such as the inclination angle and the movement amount generated by the drilling main body 1 to the controller, so as to grasp the state of the drilling work in real time.

[0041] In some embodiments, a clamping chuck 8 is provided at the bottom of the monitoring housing 4. The clamping chuck 8 includes a clamping part 81 and a fixing part 82. The clamping part 81 is sleeved on the outer periphery of the drilling main body 1, and the fixing part 82 is connected to the monitoring housing 4. After the drilling work is completed, the monitoring housing 4 can be disassembled for the maintenance and replacement of the drilling main body 1 and / or the monitoring housing 4. In the present utility model, the monitoring housing 4 is fixed on the drilling main body 1 through the clamping chuck 8. The clamping chuck 8 adopts a commonly used clamping structure in the art, and the present utility model does not make specific limitations thereto. Any structure that can realize the movable connection between the drilling main body 1 and the monitoring housing 4 can be used in the present utility model. Exemplarily, the clamping part 81 can be a clamp for easy disassembly, and the fixing part 82 can be a clamping and fixing member. The clamp is sleeved on the drilling main body, and then the monitoring housing 4 is fixed by using the clamping and fixing member to prevent the monitoring housing 4 from shifting.

[0042] The applicant declares that the above description is only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of within the technical scope disclosed by the present utility model fall within the protection scope and the disclosure scope of the present utility model.

Claims

1. An on-line monitoring device system for underground drilling in coal mines, characterized in that, The on-line monitoring device system for underground coal mine drilling includes a drilling main body and a monitoring housing that are movably connected. The drilling main body is provided with an air inlet pipe and an air outlet pipe. An air inlet detection chamber and an air outlet detection chamber are arranged in the monitoring housing. The air inlet detection chamber communicates with the air inlet pipe, and the air outlet detection chamber communicates with the air outlet pipe. A first flow rate detection component, a first pressure detection component, and a first temperature detection component are arranged in the air inlet detection chamber. A second flow rate detection component, a second pressure detection component, a gas detection component, and a dust detection component are arranged in the air outlet detection chamber. A second temperature detection component and an obstacle detection component are also arranged on the outer peripheral wall of the monitoring housing.

2. The on-line monitoring device system for underground drilling in coal mines according to claim 1, characterized in that, A first communication component is further arranged in the air inlet detection chamber. The first communication component is electrically connected to the first flow rate detection component, the first pressure detection component, and the first temperature detection component respectively. A second communication component is further arranged in the air outlet detection chamber. The second communication component is electrically connected to the second flow rate detection component, the second pressure detection component, the gas detection component, and the dust detection component respectively. A third communication component is also arranged on the outer peripheral wall of the monitoring housing. The third communication component is electrically connected to the second temperature detection component and the obstacle detection component respectively.

3. The on-line monitoring device system for underground drilling in coal mines according to claim 2, characterized in that The on-line monitoring device system for underground coal mine drilling further includes a controller. The controller is arranged outside the drilling main body. The controller is electrically connected to the first communication component, the second communication component, and the third communication component respectively.

4. The on-line monitoring device system for underground drilling in coal mines according to claim 2, wherein, An azimuth angle detection component and a displacement detection component are also arranged in the monitoring housing. The azimuth angle detection component and the displacement detection component are movably connected to the drilling main body independently. The third communication component is also electrically connected to the azimuth angle detection component and the displacement detection component respectively.

5. The on-line monitoring device system for underground coal mine drilling according to claim 4, wherein The azimuth angle detection component includes a measuring rod and an inclination sensor. The measuring rod is arranged parallel to the drilling main body. The inclination sensor is fixedly connected to the measuring rod and is used to detect the inclination angle of the measuring rod.

6. The on-line monitoring device system for underground coal mine drilling according to claim 4, characterized in that, The obstacle detection component includes at least two ultrasonic sensors. At least two of the ultrasonic sensors are evenly distributed along the outer periphery of the monitoring housing. The detection directions of at least two of the ultrasonic sensors are different from each other.

7. The on-line monitoring device system for underground drilling in coal mines according to claim 6, characterized in that, A warning component is also arranged on the monitoring housing. The warning component is electrically connected to the obstacle detection component.

8. The on-line monitoring device system for underground drilling in coal mines according to claim 7, wherein, The warning component includes an acoustic alarm, an optical alarm, or an image display warning device.

9. The on-line monitoring device system for underground drilling in coal mines according to claim 1, wherein A clamping chuck is arranged at the bottom of the monitoring housing. The clamping chuck includes a clamping part and a fixing part. The clamping part is sleeved on the outer periphery of the drilling main body, and the fixing part is connected to the monitoring housing.

10. The on-line monitoring device system for underground drilling in coal mines according to claim 1, characterized in that, The gas detection component includes a gas chromatograph analyzer, an ultraviolet spectrum analyzer, or an infrared spectrum analyzer.

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