Mining drilling machine matched while-drilling monitoring system and abnormal power phenomenon distinguishing method

Abstract

The invention discloses a monitoring-while-drilling system matched with a mining drilling machine and an abnormal power phenomenon distinguishing method in the technical field of coal mine underground safety monitoring and early warning, and the monitoring-while-drilling system comprises a data collection module, a rapid adaptation module, a data transmission module and a data analysis and display module. The data acquisition module and the rapid adaptation module are integrated on the while-drilling monitoring equipment, the rapid adaptation module is used for being in coupling butt joint with a power output end of a drilling machine and a drill rod, and the data acquisition module comprises a three-in-one sensor, a displacement sensor and a pulverized coal amount electronic scale; the data acquisition module transmits acquired monitoring data to the data analysis and display module through the data transmission module. Through multi-data monitoring and analysis, various abnormal dynamic phenomena in the drilling process are reflected in time from multiple angles, data support is provided for timely analysis of drilling response and accurate early warning of dynamic disasters such as rock burst, and the safety monitoring level of a coal mine is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of coal mine underground safety monitoring and early warning, and particularly relates to a mine drilling rig matching while-drilling monitoring system and an abnormal dynamic phenomenon discrimination method. BACKGROUND

[0002] As the main underground drilling operation for monitoring and preventing rock burst disasters, large-diameter pressure-relief boreholes and drill cuttings drilling are widely used in rock burst mines. A large amount of drilling data is contained in the drilling process, and various abnormal dynamic phenomena such as sticking, jamming, and suction often occur. If these phenomena cannot be identified in time, it may cause equipment damage, affect construction progress, and even cause safety accidents.

[0003] Using while-drilling measurement technology to obtain drilling parameters in the drilling process and to identify abnormal dynamic phenomena can provide important data support for preventing rock burst. Existing while-drilling measurement technology is mainly applied to intelligent drilling rig research and development and while-drilling trajectory measurement, and lacks research on mainstream drilling rig matching and modular monitoring systems. In this regard, Chinese patent (CN116892365A) discloses a coal mine intelligent directional drilling rig. The device has high development cost and long development cycle, and can only be used in specific places. It needs to be customized for different geological scenes, and has low universality. The coal mine gas drilling trajectory prediction method and system driven by while-drilling measurement data disclosed in Chinese patent (CN117266836A) only trains and predicts the drilling trajectory by constructing a coal mine gas drilling trajectory prediction model, ignoring the drilling parameters monitoring of the drilling rig itself during work, and the monitoring data is not comprehensive. The mine drilling rig while-drilling monitoring device disclosed in Chinese patent (CN117738639A) can only monitor three drilling parameters: torque, speed, and displacement during drilling. It lacks the collection of key working condition data such as coal powder volume and drilling rig axial pressure. The selected pull rope displacement sensor is exposed to a humid and hot environment, and the pull rope is prone to wear and breakage, with low service life. Moreover, each sensor works independently, and the equipment integration is low. At the same time, there is a lack of technical research on identifying sticking, jamming, and suction and other abnormal dynamic phenomena in the drilling process by analyzing and sorting while-drilling measurement parameters in the existing technology. SUMMARY

[0004] The purpose of the present application is to provide a mine drilling rig matching while-drilling monitoring system and an abnormal dynamic phenomenon discrimination method to solve the problem of unsatisfactory use of existing while-drilling monitoring systems or monitoring methods in the background technology and the technical gap in the existing technology.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a drilling rig matching while-drilling monitoring system, the while-drilling monitoring system comprises a data acquisition module, a quick adaptation module, a data transmission module, a data analysis and display module, the data acquisition module and the quick adaptation module are integrated on a while-drilling monitoring device, the while-drilling monitoring device can perform shaft coupling transmission on a drilling rig and a drill rod, the quick adaptation module is used for shaft coupling docking of a power output end of the drilling rig and the drill rod, the data acquisition module comprises a three-in-one sensor, a displacement sensor and a coal powder amount electronic scale, the three-in-one sensor monitors and acquires torque, rotating speed and drilling pressure data in a drilling process, the displacement sensor acquires footage displacement data in the drilling process, and the coal powder amount electronic scale is used for acquiring coal powder amount data generated in the drilling process, the data acquisition module transmits the acquired monitoring data to the data analysis and display module through the data transmission module, and the data analysis and display module determines various abnormal power conditions occurring in the drilling process based on abnormal data in the acquired torque, rotating speed, drilling pressure, displacement and coal powder amount data, and displays the acquired data and the determined abnormal power conditions.

[0006] Preferably, the three-in-one sensor is integrally assembled with the quick adaptation module to form a shaft coupling transmission device and a torque, rotating speed and drilling pressure monitoring device, the quick adaptation module comprises an input flange coupling and an output flange coupling, which are respectively assembled on two ends of the three-in-one sensor through bolts, the input flange coupling and the output flange coupling are respectively used for docking the power output end of the drilling rig and the drill rod, and the quick adaptation module is provided with multiple sets of input flange couplings and output flange couplings with different sizes of docking joints, which are used for docking drilling rigs and drill rods of different models.

[0007] Preferably, the coal powder amount electronic scale is signal connected with the data analysis and display module through Bluetooth transmission technology, and a weighing barrel of the coal powder amount electronic scale is connected with a coal powder collecting device in the drilling process through a collecting pipeline.

[0008] Preferably, the data analysis and display module is composed of a handheld terminal and upper computer software, the handheld terminal can display drilling parameters real-time curve and historical curve, the upper computer software can analyze and process the acquired data, determine abnormal power conditions in the drilling process based on abnormal data, and send the determination result to the handheld terminal for display.

[0009] Preferably, the displacement sensor adopts a high-precision photoelectric encoder, and the displacement sensor is provided with a monitoring gear, the monitoring gear is meshed and connected with a rack rail of the drilling rig, forms linkage with a drilling advancing process of the drill rod, and accurately measures the feeding displacement in the drilling process.

[0010] The application further provides a method for identifying abnormal power phenomena of a mine drilling machine, which is identified according to torque, rotating speed, drilling pressure, footage displacement or coal powder data obtained by the drilling-while-drilling monitoring system of the mine drilling machine during drilling, and comprises the following steps: (1) Equipment installation and data collection: the drilling-while-drilling monitoring equipment of the mine drilling machine is installed on the drilling machine, the monitoring equipment is started to collect drilling parameters, and the data is transmitted to a handheld terminal; (2) Data processing: the APP software of the handheld terminal has a built-in data noise reduction algorithm, which is used to reduce the noise of the collected drilling parameters and exclude interference signals caused by the vibration of the downhole drilling machine; (3) Data threshold setting: the normal range and abnormal threshold of each drilling parameter during drilling are set on the handheld terminal according to geological conditions and the type of the drilling machine; (4) Abnormal parameter determination: the processed drilling parameters are compared with the abnormal threshold, and the data exceeding the normal range is determined as an abnormal parameter; (5) Power phenomenon identification: the abnormal parameter combination and change trend marked are analyzed according to the preset power phenomenon parameter characteristic model, so that the specific power phenomenon type is identified; (6) Power phenomenon display: the identified power phenomenon is reminded in the form of a pop-up window on the APP of the handheld terminal, so that the on-site personnel can take timely measures.

[0011] Preferably, the step (5) power phenomenon identification comprises determining that the drilling process of the drilling machine is top drilling when the drilling pressure data suddenly decreases in the opposite direction, the footage displacement data reverses and retreats, the torque data sharply decreases, the rotating speed data first sharply increases and then sharply decreases, the coal powder data suddenly decreases or the coal powder is broken, and the footage displacement data reversal and retreat are the main identification basis; When the rotating speed data approaches zero or is zero, the footage displacement data stops changing, the drilling pressure and torque data far exceed the normal range, and the coal powder data sharply decreases to zero or approaches zero, it is determined that the drilling process of the drilling machine is stuck drilling, and the footage displacement data stop changing are the main identification basis; When the footage displacement data abnormally accelerates, that is, the footage speed increases, the drilling pressure data suddenly decreases, the torque data is slightly low and stable, the rotating speed data is stable, and the coal powder data increases, it is determined that the drilling process of the drilling machine is sucking drilling, and the drilling pressure data sudden decrease is the main identification basis.

[0012] Preferably, the step (5) power phenomenon identification comprises determining that the drilling process of the drilling machine is coal blasting when the drilling site has a larger sound feedback, the drilling pressure, torque and rotating speed data have sharp and irregular fluctuations in a short time, the displacement data has a short jump, the coal powder data increases, and the collected coal powder has larger debris. When the abnormal data of sudden large drop of drilling pressure and torque data, the increase of rotating speed data, the rapid large increase of displacement data, and the increase and then decrease of coal powder amount data appear, it is determined that the breakthrough phenomenon occurs. When the abnormal data of the increase of drilling pressure and torque data, the decrease of rotating speed data, the slow increase of displacement data, the decrease of coal powder amount data, and the detection of rock particles appear, it is determined that the rock phenomenon occurs.

[0013] Compared with the prior art, the progress of the mine drilling rig matching while-drilling monitoring system and the abnormal dynamic phenomenon discrimination method provided by the patent lies in that: 1. The monitoring system adopts a three-in-one sensor to monitor and collect the working torque, rotating speed and drilling pressure of the drilling rig, and is also provided with a displacement sensor and a coal powder electronic scale to monitor the displacement of the drill rod and the coal powder amount in the drilling process, so that the working state of the drilling rig can be more comprehensively monitored and fed back, the abnormal dynamic phenomenon in the drilling process can be analyzed and determined based on the combined analysis of multiple parameters, the analysis result is timely, accurate and reliable, data support is provided for real-time analysis of drilling response and accurate early warning of dynamic disasters such as rock pressure, and the safety monitoring level of coal mines is improved.

[0014] 2. The monitoring system is provided with multiple sets of input and output flange couplings of different sizes and models assembled by bolts to form a quick adaptation module, the structure type of the coupler can be adjusted in adaptability for different models of drilling rigs and drill rods, the universality is better, and the monitoring application of most coal mine drilling rigs on the market can be met. It is suitable for the upgrading and modification needs of enterprises for inventory equipment, and the monitoring system adopts modular design and is independent of the main body of the drilling rig, can be flexibly disassembled and assembled, and is convenient for migration and reuse between different drilling rigs.

[0015] 3. The displacement sensor is provided with a gear transmission mechanism, is engaged and connected with the rack rail of the drilling rig, moves on the slide rail of the drilling rig along with the drilling rod, the drilling rod is transmitted to the displacement sensor by the gear transmission mechanism, the data monitoring is more accurate, is not easily affected by the external environment, and can maintain long-term stable work. DETAILED DESCRIPTION

[0016] Figure 1 It is a whole composition schematic view of a mine drilling rig matching while-drilling monitoring system. Figure 2 It is a working process schematic view of a mine drilling rig matching while-drilling monitoring system. Figure 3 It is a structure schematic view of a while-drilling monitoring device of a mine drilling rig matching while-drilling monitoring system. Figure 4 It is a structure schematic view of a displacement sensor of a mine drilling rig matching while-drilling monitoring system.

[0017] Figure 5 The change curve of the drilling pressure parameter when the drilling construction of a coal mine 1103 track crossheading drilling method reaches 7-8 meters is applied to the present application.

[0018] Figure 6 The change curve of the torque parameter when the drilling construction of a coal mine 1103 track crossheading drilling method reaches 7-8 meters is applied to the present application.

[0019] Figure 7 The change curve of the rotation speed parameter when the drilling construction of a coal mine 1103 track crossheading drilling method reaches 7-8 meters is applied to the present application.

[0020] Figure 8 The change curve of the displacement parameter when the drilling construction of a coal mine 1103 track crossheading drilling method reaches 7-8 meters is applied to the present application.

[0021] Figure 9 The change curve of the coal powder amount parameter when the drilling construction of a coal mine 1103 track crossheading drilling method reaches 7-8 meters is applied to the present application.

[0022] In the figure: 1 data acquisition module, 2 fast adaptation module, 3 data transmission module, 4 data analysis and display module, 101 drilling monitoring equipment, 102 coal powder electronic scale, 103 three-in-one sensor, 104 displacement sensor, 105 explosion-proof box, 106 fixed seat, 201 input flange coupling, 202 output flange coupling, 401 handheld terminal, 402 host computer software. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] Please refer to Figure 1 , 3 , 4, the present application provides an embodiment of a mine drilling rig supporting drilling monitoring system, the drilling monitoring system in the embodiment includes a data acquisition module 1, a fast adaptation module 2, a data transmission module 3 and a data analysis and display module 4.

[0025] The data acquisition module 1 comprises a three-in-one sensor 103, a displacement sensor 104 and a coal powder amount electronic scale 102. The three-in-one sensor 103, the displacement sensor 104 and the quick adaptation module 2 are integrated on the while-drilling monitoring device 101, and the while-drilling monitoring device 101 is further provided with a fixing seat 106 and an explosion-proof box 105, is encapsulated in the box, the three-in-one sensor 103 and the displacement sensor 104 are installed on the fixing seat 106, the explosion-proof box 105 is provided with an explosion-proof battery for power supply of the whole data acquisition module, a plurality of bolt connection holes are symmetrically arranged at the bottom of the fixing seat 106, and the fixing seat 106 is installed and fixed with the drilling machine, so that the migration and dismounting on different drilling machines are facilitated. The three-in-one sensor 103 is externally provided with a supporting shell, a plurality of mounting holes are arranged at the bottom end of the supporting shell, and the supporting shell is installed on the fixing seat 106 through bolts, a rotating shaft is connected in the supporting shell through a bearing, and a torque sensor, a rotating speed sensor and a drilling pressure sensor are arranged in the supporting shell, the torque, the rotating speed and the pressure bearing of the rotating shaft are monitored, and a plurality of internal thread connection holes are uniformly arranged at two ends of the rotating shaft in the circumferential direction. The quick adaptation module 2 comprises an input flange coupling 201 and an output flange coupling 202, and the input flange coupling 201 and the output flange coupling 202 are respectively assembled at two ends of the rotating shaft of the three-in-one sensor 103 through bolts. The input flange coupling 201 and the output flange coupling 202 are respectively used for butt-jointing a power output end of the drilling machine and a drill pipe. The quick adaptation module 2 is provided with a plurality of sets of input flange couplings 201 and output flange couplings 202 with different sizes of butt-jointing heads, and is used for butt-jointing drilling machines and drill pipes of different models.

[0026] The coal powder amount electronic scale 102 is used for collecting coal powder amount data generated in the drilling process, and adopts a Bluetooth communication mode for data transmission. In application, the coal powder amount electronic scale 102 can be directly hung on a probe arm of the drilling machine, a weighing barrel of the coal powder amount electronic scale 102 is connected with a coal powder collecting end of the drill pipe through a pipeline, and coal powder exiting the drill pipe in the drilling process is transported into the weighing barrel through the pipeline.

[0027] The displacement sensor 104 adopts a high-precision photoelectric encoder, and the displacement sensor 104 is provided with a monitoring gear. In installation, the monitoring gear is meshed and connected with a rack rail of the drilling machine, is linked with a drilling advancing process of the drill pipe, and accurately measures the feeding displacement in the drilling process.

[0028] The data transmission module 3 is mainly for Bluetooth and wireless network transmission, and the data analysis and display module 4 is composed of a handheld terminal 401 and an upper computer software 402. The handheld terminal 401 is built-in with a while-drilling monitoring APP, the data acquisition module 1 transmits the collected torque, rotating speed, drilling pressure, displacement and coal powder amount data to the handheld terminal 401 through Bluetooth transmission, the handheld terminal 401 transmits the collected data to the upper computer software 402 through wireless network, the real-time display of the current monitoring data can be realized, the historical data can be synchronized, and the collected data can be synchronized to the upper computer software 402. The handheld terminal 401 can display the real-time curve and historical curve of each drilling parameter, the upper computer software 402 receives the data of the handheld terminal 401 through wireless network or file import, etc., the collected data can be analyzed and processed, various abnormal power conditions in the drilling process are determined based on the abnormal data, and the collected data and the determined abnormal power conditions are displayed.

[0029] In combination Figure 2 with the above, the application further provides a drilling rig matching while-drilling monitoring system and an abnormal power phenomenon determination method. The determination method determines abnormal power phenomena in the drilling process, such as sticking, jamming, coal blasting, breaking through, and encountering rock, based on torque, rotating speed, drilling pressure, displacement, and coal powder amount data collected by the while-drilling monitoring system. The determination method specifically includes the following steps: (1) Equipment installation and data collection: install the drilling rig matching while-drilling monitoring equipment on the drilling rig, start the monitoring equipment to collect drilling parameters and transmit the data to the handheld terminal.

[0030] (2) Data processing: the APP software of the handheld terminal is built-in with an existing data noise reduction algorithm to process the collected drilling parameters and eliminate interference signals caused by factors such as drilling rig vibration.

[0031] (3) Data threshold setting: set the normal range and abnormal threshold of each drilling parameter in the drilling process on the handheld terminal according to geological conditions and drilling rig models.

[0032] (4) Abnormal parameter determination: compare the processed drilling parameters with the abnormal threshold, and determine the data as an abnormal parameter if it exceeds the normal range.

[0033] (5) Power phenomenon determination: analyze the abnormal parameter combination and change trend according to the preset power phenomenon parameter characteristic model to identify the specific power phenomenon type, which is specifically: (5.1) When sticking occurs, the abnormal characteristics of each drilling parameter are as follows: ① Drilling pressure: the overall trend is a sudden drop from small-range fluctuation, even a reverse pressure condition, i.e., the pressure value becomes negative, and it will be accompanied by large fluctuations.

[0034] ② Torque: sharp drop, or large fluctuations due to "intermittent contact".

[0035] ③ Rotational speed: when the drill rod is separated from the coal rock mass, the pressure drop of the drilling machine will cause the rotational speed to increase sharply, and then it will suddenly drop due to the re-contact of the drill rod with the coal rock, and the rotational speed will fluctuate repeatedly.

[0036] ④ Displacement: sudden reversal (negative displacement), normal footage interrupted.

[0037] ⑤ Coal powder amount: sharp decrease or even temporary interruption, and if accompanied by intermittent contact, it will be in an unstable state of "more or less".

[0038] According to the abnormal characteristics of each drilling parameter, the discrimination method for top drilling can be obtained as follows: When the drilling pressure data suddenly drops and reverses, the footage displacement data reverses and retraces, the torque data sharply drops, the rotational speed data first rises sharply and then drops sharply, and the coal powder amount data sharply decreases or the powder is interrupted, etc., it is determined that the drilling process of the drilling machine has occurred top drilling, and the reverse and retracing of the footage displacement data are the main discriminators.

[0039] (5.2) When the drill is stuck, the abnormal characteristics of each drilling parameter are as follows: ① Drilling pressure: due to the drill being stuck and unable to advance, the drilling machine continuously applies a pushing force, causing the feeding pressure to rise sharply, far exceeding the normal drilling range.

[0040] ② Torque: the drill rotation is blocked, the crushing resistance increases sharply, and the torque instantaneously rises sharply, often exceeding the rated value of the equipment.

[0041] ③ Rotational speed: due to the drill being stuck, the rotational speed drops sharply, or even completely stops due to excessive resistance.

[0042] ④ Displacement: the drill cannot advance forward, and normal footage is temporarily suspended.

[0043] ⑤ Coal powder amount: the drill stops crushing coal rock, the coal powder amount decreases, and the powder is completely interrupted in a short period of time.

[0044] According to the abnormal characteristics of each drilling parameter, the discrimination method for sticking can be obtained as follows: When the rotational speed data is close to zero or zero, the footage displacement data stops changing, the drilling pressure and torque data far exceed the normal range, and the coal powder amount data sharply decreases to zero or close to zero, it is determined that the drilling process of the drilling machine has occurred sticking, and the stop of the footage displacement data is the main discriminator.

[0045] (5.3) When the drill is sucked, the abnormal characteristics of each drilling parameter are as follows: ① Drilling pressure: due to the drill not needing to actively apply pressure, the drill is sucked in, and at this time the pressure drops sharply or even becomes negative.

[0046] ② Torque: The drill will continue to cut soft coal and rock, and the torque will decrease slightly and then change stably.

[0047] ③ Rotational speed: Stable.

[0048] ④ Displacement: The drilling displacement is abnormally accelerated due to the drill being sucked in.

[0049] ⑤ Coal powder amount: The coal powder amount increases.

[0050] According to the abnormal characteristics of each drilling parameter, the determination method of the drill being sucked in can be obtained as follows: When the drilling displacement data is abnormally accelerated, that is, the drilling speed increases, the drilling pressure data suddenly decreases, the torque data is slightly low and stable, the rotational speed data is stable, and the coal powder amount data increases, it is determined that the drilling process of the drilling machine occurs the drill being sucked in, and the sudden decrease of the drilling pressure data is the main determination basis.

[0051] (5.4) When the coal burst occurs, the abnormal characteristics of each drilling parameter are as follows: ① Drilling pressure: The drill violently jumps, and the drilling pressure appears large amplitude fluctuation.

[0052] ② Torque: The drill violently jumps, and the torque appears large amplitude fluctuation.

[0053] ③ Rotational speed: The drill violently jumps, and the rotational speed appears large amplitude fluctuation.

[0054] ④ Displacement: Short-term reciprocating jump occurs.

[0055] ⑤ Coal powder amount: Instantaneous sharp increase, and mixed with more large coal blocks or debris.

[0056] According to the abnormal characteristics of each drilling parameter, the determination method of the coal burst can be obtained as follows: When the drilling site appears a larger sound feedback, the drilling pressure, torque and rotational speed data appear violent and irregular fluctuations in a short time, the displacement data appears short-term jump, and the coal powder amount data increases and the collected coal powder contains large debris, it is determined that the drilling process of the drilling machine occurs the coal burst.

[0057] (5.5) When the breakthrough occurs, the abnormal characteristics of each drilling parameter are as follows: ① Drilling pressure: The pressure suddenly decreases to close to 0, or even negative due to the weight of the drill.

[0058] ② Torque: The torque suddenly decreases to close to the idle value, and the drill rod rotates without load.

[0059] ③ Rotational speed: The rotational speed instantaneously surges, or even exceeds the rated speed of the motor.

[0060] ④ Displacement: The drilling footage suddenly accelerates.

[0061] ⑤ Coal powder amount: the coal powder amount rapidly decreases to 0.

[0062] According to the abnormal characteristics of each drilling parameter, the judgment method of breakthrough is obtained as follows: When the abnormal data of sudden large decrease of drilling pressure and torque data, increase of rotation speed data, rapid large increase of displacement data, and first increase and then decrease of coal powder amount data occur, the breakthrough phenomenon is determined.

[0063] (5.6) When the rock is encountered, the abnormal characteristics of each drilling parameter are as follows: ① Drilling pressure: the pressure rapidly increases.

[0064] ② Torque: the torque rapidly increases.

[0065] ③ Rotation speed: the rotation speed decreases.

[0066] ④ Displacement: the footage slows down.

[0067] ⑤ Coal powder amount: the coal powder amount decreases, and the coal powder is mixed with rock particles.

[0068] According to the abnormal characteristics of each drilling parameter, the judgment method of rock encountering is obtained as follows: When the abnormal data of increase of drilling pressure and torque data, decrease of rotation speed data, slow growth of displacement data, and decrease of coal powder amount data, and detection of rock particles occur, the rock encountering phenomenon is determined.

[0069] (6) Dynamic phenomenon display: the determined dynamic phenomenon is reminded in the form of a pop-up window on the APP of the handheld terminal, so that the on-site personnel can take timely measures.

[0070] Taking the drilling operation of the drilling cuttings method in the 1103 track crossheading of a coal mine as an example, the mine drilling rig supporting while drilling monitoring system provided in the embodiment has the following effects when applied: (1) Equipment installation and data acquisition: the mine drilling rig supporting while drilling monitoring equipment is installed on the drilling rig, the monitoring equipment is started to collect drilling parameters, and the data is transmitted to the handheld terminal 401. The collection frequency of the sensor is set to 2Hz.

[0071] (2) Data processing: the APP software of the handheld terminal 401 is built-in with a data noise reduction algorithm, which reduces the noise of the collected drilling parameters and excludes interference signals caused by factors such as underground drilling rig vibration.

[0072] (3) Data threshold setting: set the normal range and abnormal threshold of each drilling parameter in the drilling process according to the geological conditions of the 1103 track crossheading and the pneumatic 140 drilling equipment on the handheld terminal 401. The normal range of drilling pressure is set to 3-6 kN, the upper limit of abnormal threshold is set to 9 kN, and the lower limit is set to 1.5 kN; the normal range of torque is set to 120-160 N·m, the upper limit of abnormal threshold is set to 200 N·m, and the lower limit is set to 80 N·m; the normal range of rotation speed is set to 250-350 r / min, the upper limit of abnormal threshold is set to 600 r / min, and the lower limit is set to 100 r / min; the normal range of drilling speed (displacement change) is set to 10-25 mm / s, the upper limit of abnormal threshold is set to 50 mm / s, and the lower limit is set to 6 mm / s; the normal range of coal powder amount is 0.04-0.08 kg / s, the upper limit of abnormal threshold is set to 0.12 kg / s, and the lower limit is set to 0.02 kg / s.

[0073] (4) Abnormal parameter determination: the data waveform curve of the entire drilling process is shown in Figures 5-9 When the drilling by the drilling cuttings method reaches the 8th meter, the drilling pressure is monitored to be 10 kN, the torque is 225 N·m, the rotation speed is 53 r / min, the displacement change is 5 mm / s, and the coal powder amount change is 0.015 kg / s. Comparing the real-time monitoring parameters with the set abnormal threshold, it can be known that the drilling pressure and torque exceed the upper limit of the threshold, the rotation speed, displacement change and coal powder amount are lower than the lower limit of the threshold, and the abnormal parameters are determined.

[0074] (5) Power phenomenon identification: according to the preset stuck drill power phenomenon parameter characteristic model "drilling pressure and torque far exceed the normal range, rotation speed approaches zero or zero, displacement stops changing and coal powder amount sharply decreases to zero or near zero, and stuck drill phenomenon is determined", the current abnormal parameter combination and change trend conforms to the characteristics of the top drill phenomenon, so it is identified as "stuck drill" phenomenon.

[0075] (6) Power phenomenon display: the APP of the handheld terminal 401 will remind the "stuck drill" power phenomenon in the form of a pop-up window, so that the on-site personnel can take measures such as "retreating the rod or reciprocating the rod" in time.

Claims

1. A drilling monitoring system for a mining drill, characterized in that: The drilling monitoring system includes a data acquisition module, a quick adaptation module, a data transmission module, and a data analysis and display module. The data acquisition module and the quick adaptation module are integrated on the drilling monitoring device. The drilling monitoring device can couple the drilling rig and the drill pipe. The quick adaptation module is used to couple the drilling rig power output end and the drill pipe. The data acquisition module includes a three-in-one sensor, a displacement sensor, and a coal powder electronic scale. The three-in-one sensor monitors and collects torque, speed, and bit pressure data during the drilling process. The displacement sensor collects footage displacement data during the drilling process. The coal powder electronic scale is used to collect coal powder amount data generated during the drilling process. The data acquisition module transmits the collected monitoring data to the data analysis and display module via the data transmission module. The data analysis and display module determines various abnormal power conditions that occur in the drilling process based on abnormal data in the collected torque, speed, bit pressure, displacement, and coal powder amount data, and displays the collected data and the determined abnormal power conditions.

2. A monitoring while drilling system for a mining drill according to claim 1, characterized in that: The three-in-one sensor and the quick adaptation module are assembled as a whole to form a coupling transmission device and a torque, speed and bit pressure monitoring device. The quick adaptation module includes an input flange coupling and an output flange coupling, which are respectively assembled on the two ends of the three-in-one sensor by bolts. The input flange coupling and the output flange coupling are respectively used to connect the power output end of the drilling rig and the drill pipe. The quick adaptation module is equipped with multiple sets of input flange couplings and output flange couplings with different sizes of docking joints for connecting different models of drilling rigs and drill pipes.

3. A monitoring while drilling system for a mining drill according to claim 2, characterized in that: The pulverized coal electronic scale is connected to the data analysis and display module signal through Bluetooth transmission technology, and the weighing bucket of the pulverized coal electronic scale is connected to the pulverized coal collection device of the drilling process through a collection pipe.

4. A monitoring while drilling system for a mining drill according to claim 3, characterized in that: The data analysis and display module consists of a handheld terminal and host computer software. The handheld terminal can display real-time curves and historical curves of various drilling parameters. The host computer software can analyze and process the collected data, determine abnormal dynamic conditions in the drilling process based on abnormal data analysis, and send the determination results to the handheld terminal for display.

5. The drilling monitoring system for a mining drill according to claim 4, characterized in that: The displacement sensor adopts a high-precision photoelectric encoder. The displacement sensor is provided with a monitoring gear. The monitoring gear is engaged with the rack track of the drilling rig and linked with the drilling propulsion process of the drill rod to accurately measure the feed displacement of the drilling process.

6. A method for distinguishing abnormal dynamic phenomena of a mining drill, characterized in that: The discrimination method is based on the torque, speed, bit pressure, footage displacement or coal powder amount data obtained by the drilling monitoring system for the mining drill according to claim 5 during the drilling process of the drill, and includes: (1) Equipment installation and data collection: Install the drilling monitoring equipment for the mining drill rig on the drill rig, start the monitoring equipment to collect drilling parameters and transmit the data to the handheld terminal; (2) Data processing: The handheld terminal’s APP software has a built-in data noise reduction algorithm to reduce the noise of the collected drilling parameters and eliminate interference signals caused by factors such as vibration of the downhole drilling rig; (3) Data threshold setting: Set the normal range and abnormal threshold of each drilling parameter during the drilling process on the handheld terminal according to geological conditions and drilling rig model; (4) Abnormal parameter determination: Compare the processed drilling parameters with the abnormal threshold value. If the parameters exceed the normal range, the data will be determined as abnormal parameters. (5) Dynamic phenomenon identification: Based on the preset characteristic model of each dynamic phenomenon parameter, the marked abnormal parameter combination and change trend are analyzed to identify the specific dynamic phenomenon type; (6) Display of dynamic phenomena: The handheld terminal APP will display the determined dynamic phenomena in the form of a pop-up window to remind on-site personnel so that they can take timely response measures.

7. A method for distinguishing abnormal power phenomena of a mining drill according to claim 6, characterized in that: The step (5) of judging the dynamic phenomenon includes judging that the drilling process of the drilling rig has top drilling when abnormal data such as a sudden drop in the drilling pressure data, a reverse regression of the footage displacement data, a sharp drop in the torque data, a sudden increase in the speed data and then a sudden drop, a sudden decrease in the coal powder amount data or a break in the coal powder are present, wherein the reverse regression of the footage displacement data is the main basis for judgment; When the rotation speed data is close to zero or zero, the footage and displacement data stop changing, the bit pressure and torque data are far beyond the normal range, and the coal powder amount data drops sharply to zero or close to zero, it is determined that the drill is stuck during the drilling process of the drilling rig. The cessation of footage and displacement data is the main basis for judgment: When the footage displacement data is abnormally accelerated, that is, the footage speed increases, and the bit pressure data drops sharply, the torque data is slightly low and stable, the speed data is stable, and the coal powder amount data increases abnormally, it is determined that the drilling process of the drilling rig has sucked drill, among which the sudden drop in the bit pressure data is the main basis for judgment.

8. A method for distinguishing abnormal power phenomena of a mining drill according to claim 7, characterized in that: The step (5) of dynamic phenomenon identification includes determining that coal cannon has occurred during the drilling process of the drilling rig when loud sound feedback occurs at the drilling site, the drilling pressure, torque and speed data fluctuate violently and irregularly in a short period of time, the displacement data jumps briefly, the coal powder amount data increases and the collected coal powder contains abnormal large debris. When abnormal data such as sudden and significant drops in WOB and torque data, increases in RPM data, rapid and significant increases in displacement data, and first increases and then decreases in pulverized coal volume data occur, it is determined to be a penetration phenomenon; When the drilling pressure and torque data increase, the speed data decreases, the displacement data growth slows down, the coal powder amount data decreases, and abnormal rock particle data is detected, it is determined to be rock detection phenomenon.

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