Coal mine underground drilling node type formation water mineral chemical monitoring device and method

Abstract

The invention discloses a coal mine underground drilling node type formation water mineral chemical monitoring device and method. The device comprises a signal receiving circuit, a signal processing circuit, a chemical analysis circuit and a signal transmission circuit. The signal receiving circuit is used for receiving according to set ion signal parameters and transmitting the received signals to the signal processing circuit, the signal processing circuit processes the received signals and transmits the preliminarily processed signals to the chemical analysis circuit, and the chemical analysis circuit receives the signals from the signal processing circuit and transmits the signals to the control circuit. And the signal processing circuit is used for carrying out ion analysis processing on the received signal and transmitting the processed signal to the signal transmission circuit, and the signal transmission circuit is used for carrying out compression modulation on the signal after receiving the signal and then carrying out signal transmission in a current mode. Intelligent detection of the mine driving working face can be achieved, the production efficiency can be improved, driving production safety can be guaranteed, and the purpose of safe and efficient coal mining is achieved.

Description

Technical Field

[0001] This invention belongs to the field of mine exploration technology and relates to a formation monitoring system and method, specifically to a node-type formation water mineral ion analysis and monitoring device and method in underground coal mine boreholes. Background Technology

[0002] The promotion and application of automated and intelligent coal mining technologies require frequent, dynamic, and precise detection ahead of the tunneling face. Currently, geological mineral chemical detection instruments and methods are still in the stage of on-site data collection and surface processing. In coal mine field applications, factors such as long detection result cycles and untimely acquisition of mineral chemical information ahead of the tunneling face often seriously affect the safety of mine roadway excavation.

[0003] Due to limited space in mine tunneling faces, miniaturization, portability, and intelligent design are paramount for the long-term monitoring of various surface geochemical exploration equipment. Geochemical exploration equipment in underground coal mine tunneling faces must first possess rolling detection capabilities, and secondly, be equipped with a power supply suitable for long-term monitoring and a convenient data retrieval method. Passive monitoring systems use wired cables for power supply, which has disadvantages such as difficult wiring and high costs, increasing the maintenance costs of monitoring nodes and failing to guarantee continuous operation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a coal mine underground borehole node-type formation water mineral chemical monitoring device and method. This is an easy-to-deploy and easy-to-maintain water chemical monitoring system that can achieve intelligent detection of the mine tunneling face. It can not only improve production efficiency but also ensure the safety of tunneling production, thereby achieving the goal of safe and efficient coal mining.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A node-type formation water mineral chemical monitoring device in a coal mine borehole includes a signal receiving circuit, a signal processing circuit, a chemical analysis circuit, and a signal transmission circuit; the signal receiving circuit is connected to the signal processing circuit, the signal processing circuit is connected to the chemical analysis circuit, and the chemical analysis circuit is connected to the signal transmission circuit.

[0007] The signal receiving circuit receives signals according to the set ion signal parameters and transmits the received signals to the signal processing circuit. The signal processing circuit processes the received signals and transmits the pre-processed signals to the chemical analysis circuit. The chemical analysis circuit receives the signals from the signal processing circuit, performs ion analysis processing on the received signals, and transmits the processed signals to the signal transmission circuit. After receiving the signals, the signal transmission circuit compresses and modulates the signals and then transmits the signals via current.

[0008] The present invention also includes the following technical features:

[0009] Specifically, the signal receiving circuit can receive electrical signals from the borehole; the signal receiving circuit includes: resistors R21, R22, R23, R24, R25, and R26; capacitors C21, C22, C23, C24, C25, and C26; diodes D21 and D22; power supplies V21, V22, V23, and V24; and operational amplifier IC21.

[0010] The first terminal of resistor R21 is connected to the front end; the second terminal of resistor R21 is connected to the first terminals of capacitors C21, R23, and R22; the second terminal of capacitor C21 is connected to the second terminal of resistor R23 and the fourth terminal of operational amplifier IC21; the second terminal of resistor R22 is connected to the first terminal of operational amplifier IC21; power supply V21 is connected to the first terminals of capacitors C22, R24, and R25; the second terminal of resistor R24 ​​is connected to the second terminal of capacitor C22 and the first terminal of capacitor C23; the second terminal of resistor R25 is connected to the first terminal of capacitor C24; the second terminal of operational amplifier IC21 is connected to the second terminals of capacitors C23 and C24; the operational amplifier... The fifth terminal of the operational amplifier IC21 is connected to power supply V22; the third terminal of the operational amplifier IC21 is connected to the first terminal of resistor R26 and the first terminal of operational amplifier IC22; the second terminal of operational amplifier IC22 is connected to the second terminal of capacitor C25; the first terminal of capacitor C25 is connected to the first terminal of capacitor C26; the fourth terminal of operational amplifier IC22 is connected to power supply V23; the fifth terminal of operational amplifier IC22 is connected to power supply V24; the second terminal of resistor R26 is connected to the first terminal of diode D21; the second terminal of capacitor C26 is connected to the second terminal of diode D22; the third terminal of operational amplifier IC22 is connected to the second terminal of diode D21 and the first terminal of diode D22, which is the output terminal of the signal receiving circuit.

[0011] Specifically, the signal processing circuit can perform preliminary adjustment and processing of the signal; the signal processing circuit includes: resistors R31, R32, R33, R34, R35, R36, R37, and R38; capacitors C31, C32, C33, C34, and C35; power supply V31; power supply V32; and integrated circuit U31; wherein:

[0012] The output terminal of the signal receiving circuit is connected to the third terminal IN of integrated circuit U31; the first terminal of capacitor C31 is connected to the first terminals of resistors R31 and R32, and the first terminal of capacitor C32; the second terminal of capacitor C31 is grounded together with the second terminals of resistors R31 and C32; the second terminal of resistor R32 is connected to the second terminal of resistor R33 and the second terminal ND2 of integrated circuit U31; the first terminal of resistor R33 is connected to the first terminal of capacitor C33; the second terminal of capacitor C33 is connected to the first terminal ND1 of integrated circuit U31; the fourth terminal GND of integrated circuit U31 is connected to ground GND; the fifth terminal VTT of integrated circuit U31 is connected to the power supply. V31 is connected; the sixth terminal OUT1 of integrated circuit U31 is connected to the first terminal of resistor R34; the seventh terminal OUT2 of integrated circuit U31 is connected to the second terminal of resistor R34 and the first terminal of resistor R35; the eighth terminal GNN of integrated circuit U31 is connected to the first terminal of resistor R38; the second terminal of resistor R38 is connected to the first terminal of capacitor C34; the second terminal of capacitor C34 is connected to ground GND; the second terminal of resistor R35 is connected to the second terminal of resistor R36, the first terminal of resistor R37, and the first terminal of capacitor C35; the first terminal of resistor R36 is connected to power supply V32; resistor R37 is connected to the second terminal of capacitor C35, which is the output terminal of the signal processing circuit.

[0013] Specifically, the chemical analysis circuit can perform chemical ion analysis calculations of the signal; the chemical analysis circuit includes: resistors R41, R42, R43, R44, R45, and R46; capacitors C41, C42, C43, C44, C45, and C46; power supplies V41, V42, and V43; and operational amplifiers IC41, IC42, and IC43; wherein:

[0014] The first terminal of resistor R41 is connected to the output terminal of the signal processing circuit; the second terminal of resistor R41 is connected to the second terminal of capacitor C41 and the first terminal of operational amplifier IC41; the first terminal of resistor R42 is connected to power supply V41; the second terminal of resistor R42 is connected to the first terminal of capacitor C42 and the second terminal of operational amplifier IC41; the second terminal of capacitor C42 is connected to ground GND; the first terminal of capacitor C41 is connected to the first terminal of resistor R43; the second terminal of resistor R43 is connected to the third terminal of operational amplifier IC41; the fourth terminal of operational amplifier IC41 is connected to power supply V42; the fifth terminal of operational amplifier IC41 is connected to the first terminal of resistor R44 and the first terminal of capacitor C43; capacitor C4... 3. The second terminal is connected to the first terminal of capacitor C44 and the second terminal of operational amplifier IC42; the second terminal of resistor R44 is connected to the third terminal of operational amplifier IC42, the second terminal of capacitor C45, and the first terminal of resistor R45; the first terminal of operational amplifier IC42 is connected to the first terminal of capacitor C45; the first terminal of resistor R46 is grounded to GND; the second terminal of resistor R46 is connected to the second terminal of operational amplifier IC43; the second terminal of resistor R45 is connected to the first terminal of capacitor C46 and the first terminal of operational amplifier IC43; the third terminal of operational amplifier IC43 is connected to power supply V43; the second terminal of capacitor C46 is connected to the fourth terminal of operational amplifier IC43, which is the output terminal of the chemical analysis circuit.

[0015] Specifically, the signal transmission circuit can stably transmit signals to the ground; the signal transmission circuit includes: resistors R51, R52, R53, R54, and R55; capacitors C51, C52, C53, C54, and C55; power supplies V51, V52, V53, V54, and V55; connector JP51; operational amplifier IC51; operational amplifier IC52; and integrated circuit U51; wherein:

[0016] The first terminal of resistor R51 is connected to the third terminal of connector JP51; the first terminal of resistor R52 is connected to the output terminal of the chemical analysis circuit; the first terminal of capacitor C51 is connected to the second terminal of connector JP51; the first terminal of capacitor C52 is connected to the first terminal of connector JP51; the second terminal of resistor R51 is connected to the first terminal of operational amplifier IC51; the second terminal of resistor R52 is connected to the second terminal of operational amplifier IC51; the second terminal of capacitor C51 and the fourth terminal of operational amplifier IC51 are connected to power supply V52; the second terminal of capacitor C52, the second terminal of resistor R53, and the fourth terminal GND of integrated circuit U51 are connected to ground GND; the third terminal of operational amplifier IC51 is connected to power supply V51; the fifth terminal of operational amplifier IC51 is connected to the first terminal of resistor R53 and the first terminal of capacitor C53; the first terminal of capacitor C53 is connected to the fourth terminal of connector JP51. Connections: Terminal JP1 of integrated circuit U51 is connected to the second terminal of capacitor C53; Terminal E1 of integrated circuit U51 is connected to the third terminal E2 of integrated circuit U51; Terminal JP2 of integrated circuit U51 is connected to the second terminal of capacitor C53; Terminal VCS of integrated circuit U51 is connected to resistor R54; Terminal OUT of integrated circuit U51 is connected to the first terminal of resistor R55; The first terminal of resistor R54 is connected to power supply V53; The second terminal of resistor R55 is connected to the first terminal of capacitor C55 and the first terminal of operational amplifier IC52; The second terminal of operational amplifier IC52 is connected to power supply V56; The third terminal of operational amplifier IC52 is connected to power supply V54; The fourth terminal of operational amplifier IC52 is connected to power supply V55; The second terminal of capacitor C55 is connected to the fifth terminal of operational amplifier IC52, which is the output terminal of the signal transmission circuit.

[0017] A method for monitoring the mineral and chemical composition of formation water in underground coal mine boreholes, the method being implemented based on the aforementioned nodal-type formation water mineral and chemical monitoring device in underground coal mine boreholes, includes the following steps:

[0018] Step 1: The signal receiving circuit is activated to receive real-time monitoring signals of mineral ions in formation water from underground coal mine boreholes. The monitoring signals are transmitted in the form of current and voltage.

[0019] Step 2: The signal processing circuit starts receiving monitoring signals from the signal receiving circuit, processes the received signals, and transmits the monitoring signals to the chemical analysis circuit.

[0020] Step 3: The chemical analysis circuit analyzes and processes the monitoring signal and transmits the processed signal to the signal transmission circuit.

[0021] Step 4: The signal transmission circuit receives the signal from the signal processing circuit and transmits the signal to the ground through the signal transmission circuit.

[0022] Compared with the prior art, the present invention has the following technical effects:

[0023] (1) The borehole node-type formation water mineral ion analysis and monitoring device provided by the present invention is suitable for mine boreholes, and the signal acquisition is fast and accurate. The device is highly adaptable and is an effective device for monitoring the ion composition of water.

[0024] (2) This device was developed based on the analysis of the formation mechanism, spatiotemporal distribution, and physical properties of typical disaster-causing substances in coal mines. The device's performance corresponds well with known water chemical ions, providing a strong basis for mine production and water hazard prevention.

[0025] (3) The monitoring method provided by this invention, with its optimized design, reduces unnecessary circuitry and improves the device's convenience. Through the close coordination between the circuitry and the analysis function, the signal receiving circuit can simultaneously receive current field signals with different parameters, making more direct and precise working surface ion analysis possible. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the nodal-type formation water mineral ion analysis and monitoring device in underground coal mine boreholes according to the present invention.

[0027] Figure 2 This is a schematic diagram of the signal receiving circuit of the present invention.

[0028] Figure 3 This is a schematic diagram of the signal processing circuit of the present invention.

[0029] Figure 4 This is a schematic diagram of the chemical analysis circuit of the present invention.

[0030] Figure 5 This is a schematic diagram of the signal transmission circuit of the present invention.

[0031] Figure 6 This is a flowchart of the method for nodal-type formation water mineral ion analysis and monitoring in underground coal mine boreholes according to the present invention.

[0032] Figure 7 This is a schematic diagram of the detection results without using the device of the present invention.

[0033] Figure 8 This is a schematic diagram of the results of detection using the device of the present invention. Detailed Implementation

[0034] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0035] Example:

[0036] This embodiment provides a node-type formation water mineral chemical monitoring device for underground boreholes in coal mines, such as... Figure 1 As shown, it includes a signal receiving circuit, a signal processing circuit, a chemical analysis circuit, and a signal transmission circuit; the signal receiving circuit is connected to the signal processing circuit, the signal processing circuit is connected to the chemical analysis circuit, and the chemical analysis circuit is connected to the signal transmission circuit.

[0037] The signal receiving circuit receives signals according to the set ion signal parameters and transmits the received signals to the signal processing circuit. The signal processing circuit processes the received signals and transmits the pre-processed signals to the chemical analysis circuit. The chemical analysis circuit receives the signals from the signal processing circuit, performs ion analysis processing on the received signals, and transmits the processed signals to the signal transmission circuit. After receiving the signals, the signal transmission circuit compresses and modulates the signals and then transmits the signals via current.

[0038] The nodal-type formation water mineral ion analysis and monitoring device in underground coal mine boreholes is simple in design. Its signal receiving circuit, signal processing circuit, chemical analysis circuit, and signal transmission circuit are simple in structure, have high signal transmission efficiency, and strong anti-interference ability, which is conducive to data analysis and processing, while taking into account the basic functions.

[0039] Signal receiving circuit, such as Figure 2 As shown, it can receive electrical signals from the borehole; the signal receiving circuit includes: resistors R21, R22, R23, R24, R25, and R26; capacitors C21, C22, C23, C24, C25, and C26; diodes D21 and D22; power supplies V21, V22, V23, and V24; operational amplifier IC21; operational amplifier IC21 is model LMC6482; and operational amplifier IC22 is model LM258.

[0040] The first terminal of resistor R21 is connected to the front end; the second terminal of resistor R21 is connected to the first terminals of capacitors C21, R23, and R22; the second terminal of capacitor C21 is connected to the second terminal of resistor R23 and the fourth terminal of operational amplifier IC21; the second terminal of resistor R22 is connected to the first terminal of operational amplifier IC21; power supply V21 is connected to the first terminals of capacitors C22, R24, and R25; the second terminal of resistor R24 ​​is connected to the second terminal of capacitor C22 and the first terminal of capacitor C23; the second terminal of resistor R25 is connected to the first terminal of capacitor C24; the second terminal of operational amplifier IC21 is connected to the second terminals of capacitors C23 and C24; the operational amplifier... The fifth terminal of the operational amplifier IC21 is connected to power supply V22; the third terminal of the operational amplifier IC21 is connected to the first terminal of resistor R26 and the first terminal of operational amplifier IC22; the second terminal of operational amplifier IC22 is connected to the second terminal of capacitor C25; the first terminal of capacitor C25 is connected to the first terminal of capacitor C26; the fourth terminal of operational amplifier IC22 is connected to power supply V23; the fifth terminal of operational amplifier IC22 is connected to power supply V24; the second terminal of resistor R26 is connected to the first terminal of diode D21; the second terminal of capacitor C26 is connected to the second terminal of diode D22; the third terminal of operational amplifier IC22 is connected to the second terminal of diode D21 and the first terminal of diode D22, which is the output terminal of the signal receiving circuit.

[0041] The signal receiving circuit can simultaneously receive current signals with different parameters, effectively improving the efficiency of signal reception and ensuring efficient data reception.

[0042] Signal processing circuits, such as Figure 3 As shown, it can perform preliminary signal adjustment and processing; the signal processing circuit includes: resistors R31, R32, R33, R34, R35, R36, R37, and R38; capacitors C31, C32, C33, C34, and C35; power supply V31; power supply V32; and integrated circuit U31, model number QN8035; where:

[0043] The output terminal of the signal receiving circuit is connected to the third terminal IN of integrated circuit U31; the first terminal of capacitor C31 is connected to the first terminals of resistors R31 and R32, and the first terminal of capacitor C32; the second terminal of capacitor C31 is grounded together with the second terminals of resistors R31 and C32; the second terminal of resistor R32 is connected to the second terminal of resistor R33 and the second terminal ND2 of integrated circuit U31; the first terminal of resistor R33 is connected to the first terminal of capacitor C33; the second terminal of capacitor C33 is connected to the first terminal ND1 of integrated circuit U31; the fourth terminal GND of integrated circuit U31 is connected to ground GND; the fifth terminal VTT of integrated circuit U31 is connected to the power supply. V31 is connected; the sixth terminal OUT1 of integrated circuit U31 is connected to the first terminal of resistor R34; the seventh terminal OUT2 of integrated circuit U31 is connected to the second terminal of resistor R34 and the first terminal of resistor R35; the eighth terminal GNN of integrated circuit U31 is connected to the first terminal of resistor R38; the second terminal of resistor R38 is connected to the first terminal of capacitor C34; the second terminal of capacitor C34 is connected to ground GND; the second terminal of resistor R35 is connected to the second terminal of resistor R36, the first terminal of resistor R37, and the first terminal of capacitor C35; the first terminal of resistor R36 is connected to power supply V32; resistor R37 is connected to the second terminal of capacitor C35, which is the output terminal of the signal processing circuit.

[0044] The signal processing circuit enables efficient and accurate processing of current field signals with different parameters simultaneously, improving both signal calculation efficiency and calculation accuracy.

[0045] Chemical analysis circuits, such as Figure 4 As shown, the circuit can perform chemical ion analysis calculations on signals. The chemical analysis circuit includes: resistors R41, R42, R43, R44, R45, and R46; capacitors C41, C42, C43, C44, C45, and C46; power supplies V41, V42, and V43; operational amplifiers IC41, IC42, and IC43. Operational amplifier IC41 is model AD8629, operational amplifier IC42 is model LM324, and operational amplifier IC43 is model LM324.

[0046] The first terminal of resistor R41 is connected to the output terminal of the signal processing circuit; the second terminal of resistor R41 is connected to the second terminal of capacitor C41 and the first terminal of operational amplifier IC41; the first terminal of resistor R42 is connected to power supply V41; the second terminal of resistor R42 is connected to the first terminal of capacitor C42 and the second terminal of operational amplifier IC41; the second terminal of capacitor C42 is connected to ground GND; the first terminal of capacitor C41 is connected to the first terminal of resistor R43; the second terminal of resistor R43 is connected to the third terminal of operational amplifier IC41; the fourth terminal of operational amplifier IC41 is connected to power supply V42; the fifth terminal of operational amplifier IC41 is connected to the first terminal of resistor R44 and the first terminal of capacitor C43; capacitor C4... 3. The second terminal is connected to the first terminal of capacitor C44 and the second terminal of operational amplifier IC42; the second terminal of resistor R44 is connected to the third terminal of operational amplifier IC42, the second terminal of capacitor C45, and the first terminal of resistor R45; the first terminal of operational amplifier IC42 is connected to the first terminal of capacitor C45; the first terminal of resistor R46 is grounded to GND; the second terminal of resistor R46 is connected to the second terminal of operational amplifier IC43; the second terminal of resistor R45 is connected to the first terminal of capacitor C46 and the first terminal of operational amplifier IC43; the third terminal of operational amplifier IC43 is connected to power supply V43; the second terminal of capacitor C46 is connected to the fourth terminal of operational amplifier IC43, which is the output terminal of the chemical analysis circuit.

[0047] The chemical analysis circuit employs an advanced computational integration method, reducing energy consumption in powering other circuits and improving computational efficiency. Simultaneous calculation of different parameter data enhances circuit utilization.

[0048] Signal transmission circuits, such as Figure 5 As shown, the signal can be stably transmitted to the ground; the signal transmission circuit includes: resistors R51, R52, R53, R54, and R55; capacitors C51, C52, C53, C54, and C55; power supplies V51, V52, V53, V54, and V55; connector JP51; operational amplifier IC51 (model LM324); operational amplifier IC52 (model AD8224); and integrated circuit U51 (model MC3406).

[0049] The first terminal of resistor R51 is connected to the third terminal of connector JP51; the first terminal of resistor R52 is connected to the output terminal of the chemical analysis circuit; the first terminal of capacitor C51 is connected to the second terminal of connector JP51; the first terminal of capacitor C52 is connected to the first terminal of connector JP51; the second terminal of resistor R51 is connected to the first terminal of operational amplifier IC51; the second terminal of resistor R52 is connected to the second terminal of operational amplifier IC51; the second terminal of capacitor C51 and the fourth terminal of operational amplifier IC51 are connected to power supply V52; the second terminal of capacitor C52, the second terminal of resistor R53, and the fourth terminal GND of integrated circuit U51 are connected to ground GND; the third terminal of operational amplifier IC51 is connected to power supply V51; the fifth terminal of operational amplifier IC51 is connected to the first terminal of resistor R53 and the first terminal of capacitor C53; the first terminal of capacitor C53 is connected to the fourth terminal of connector JP51. Connections: Terminal JP1 of integrated circuit U51 is connected to the second terminal of capacitor C53; Terminal E1 of integrated circuit U51 is connected to the third terminal E2 of integrated circuit U51; Terminal JP2 of integrated circuit U51 is connected to the second terminal of capacitor C53; Terminal VCS of integrated circuit U51 is connected to resistor R54; Terminal OUT of integrated circuit U51 is connected to the first terminal of resistor R55; The first terminal of resistor R54 is connected to power supply V53; The second terminal of resistor R55 is connected to the first terminal of capacitor C55 and the first terminal of operational amplifier IC52; The second terminal of operational amplifier IC52 is connected to power supply V56; The third terminal of operational amplifier IC52 is connected to power supply V54; The fourth terminal of operational amplifier IC52 is connected to power supply V55; The second terminal of capacitor C55 is connected to the fifth terminal of operational amplifier IC52, which is the output terminal of the signal transmission circuit.

[0050] The signal transmission circuit combines integrated circuits with conventional electronic components, resulting in low power consumption, improved energy efficiency for powering other circuits, and reduced power loss.

[0051] This embodiment also provides a nodal-type formation water mineral chemistry monitoring method in underground coal mine boreholes. This method is based on the aforementioned nodal-type formation water mineral chemistry monitoring device in underground coal mine boreholes. This device constructs an efficient monitoring network by deploying multiple interconnected monitoring nodes within the borehole. In practical applications, it can accurately monitor various key parameters and chemical substances within the borehole. The ion sensor nodes in the device can monitor the concentration of common ions in the formation water in real time. During coal mining, if the sulfate ion concentration in a certain area of ​​the borehole continuously increases, it may indicate that sulfur-containing minerals in that area are reacting with water. This can not only corrode underground equipment but also produce toxic and harmful gases such as hydrogen sulfide, threatening the safety of underground personnel. In this case, the nodal-type monitoring network can quickly locate the abnormal area. Figure 6 As shown, it includes the following steps:

[0052] Step 1: The signal receiving circuit is activated to receive real-time monitoring signals of mineral ions in formation water from underground coal mine boreholes. The monitoring signals are transmitted in the form of current and voltage.

[0053] Step 2: The signal processing circuit starts to receive the monitoring signal from the signal receiving circuit, processes the received signal, classifies the different parameter signals received, and then transmits the monitoring signal to the chemical analysis circuit.

[0054] Step 3: The chemical analysis circuit analyzes and processes the monitoring signal, including calculating ion concentration and redox potential, and then transmits the processed signal to the signal transmission circuit.

[0055] Step 4: The signal transmission circuit receives the signal from the signal processing circuit and transmits the signal to the ground through the signal transmission circuit.

[0056] like Figure 7 The results shown are the detection results without using the device provided by this invention. The result graph is a multi-parameter superimposed trend graph, with the horizontal axis representing the monitoring time and the vertical axis representing the monitoring value. Figure 8 The image shows the results of detection using the device provided by this invention. The result graph is a multi-parameter overlay trend chart, with the horizontal axis representing monitoring time and the vertical axis representing the monitored numerical value. Figure 7 As can be seen, the detection results in the image have low resolution and are blurry, which affects the detection effect and makes it impossible to effectively distinguish the borehole structure and other anomalies. Figure 8 The image shown is a diagram illustrating the monitoring results achieved using this invention. In this invention, the monitoring probe is not positioned in front of the drilling direction, thus avoiding conflict with the drilling process. Monitoring and measurement are performed during the drilling process, which helps maintain the integrity and effectiveness of the monitoring results, ensures the continuity of monitoring effects, and improves observation accuracy.

[0057] The nodal-type formation water mineral ion analysis and monitoring device in underground coal mine boreholes is simple in design. Its signal receiving circuit, signal processing circuit, chemical analysis circuit, and signal transmission circuit are simple in structure, have high signal transmission efficiency, and strong anti-interference ability, which is conducive to data analysis and processing, while taking into account the basic functions.

[0058] The nodal-type formation water mineral ion analysis and monitoring device and method in underground coal mine boreholes can improve the accuracy of monitoring results and the location of anomalies more accurately. Using underground coal mine boreholes to carry out formation water mineral ion analysis and monitoring research is a powerful means to ensure the safe excavation of coal mine roadways.

[0059] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0060] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0061] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A node-type formation water mineral chemical monitoring device for underground coal mine boreholes, characterized in that, It includes a signal receiving circuit, a signal processing circuit, a chemical analysis circuit, and a signal transmission circuit; the signal receiving circuit is connected to the signal processing circuit, the signal processing circuit is connected to the chemical analysis circuit, and the chemical analysis circuit is connected to the signal transmission circuit. The signal receiving circuit receives signals according to the set ion signal parameters and transmits the received signals to the signal processing circuit. The signal processing circuit processes the received signals and transmits the pre-processed signals to the chemical analysis circuit. The chemical analysis circuit receives the signals from the signal processing circuit, performs ion analysis processing on the received signals, and transmits the processed signals to the signal transmission circuit. After receiving the signals, the signal transmission circuit compresses and modulates the signals and then transmits the signals via current.

2. The nodal-type formation water mineral chemical monitoring device in underground coal mine boreholes as described in claim 1, characterized in that, The signal receiving circuit can receive electrical signals from the borehole; the signal receiving circuit includes: resistors R21, R22, R23, R24, R25, and R26; capacitors C21, C22, C23, C24, C25, and C26; diodes D21 and D22; power supplies V21, V22, V23, and V24; and operational amplifier IC21. The first terminal of resistor R21 is connected to the front end; the second terminal of resistor R21 is connected to the first terminals of capacitors C21, R23, and R22; the second terminal of capacitor C21 is connected to the second terminal of resistor R23 and the fourth terminal of operational amplifier IC21; the second terminal of resistor R22 is connected to the first terminal of operational amplifier IC21; power supply V21 is connected to the first terminals of capacitors C22, R24, and R25; the second terminal of resistor R24 ​​is connected to the second terminal of capacitor C22 and the first terminal of capacitor C23; the second terminal of resistor R25 is connected to the first terminal of capacitor C24; the second terminal of operational amplifier IC21 is connected to the second terminals of capacitors C23 and C24; the operational amplifier... The fifth terminal of the operational amplifier IC21 is connected to power supply V22; the third terminal of the operational amplifier IC21 is connected to the first terminal of resistor R26 and the first terminal of operational amplifier IC22; the second terminal of operational amplifier IC22 is connected to the second terminal of capacitor C25; the first terminal of capacitor C25 is connected to the first terminal of capacitor C26; the fourth terminal of operational amplifier IC22 is connected to power supply V23; the fifth terminal of operational amplifier IC22 is connected to power supply V24; the second terminal of resistor R26 is connected to the first terminal of diode D21; the second terminal of capacitor C26 is connected to the second terminal of diode D22; the third terminal of operational amplifier IC22 is connected to the second terminal of diode D21 and the first terminal of diode D22, which is the output terminal of the signal receiving circuit.

3. The nodal-type formation water mineral chemical monitoring device in underground coal mine boreholes as described in claim 1, characterized in that, The signal processing circuit can perform preliminary adjustment and processing of signals; the signal processing circuit includes: resistors R31, R32, R33, R34, R35, R36, R37, and R38; capacitors C31, C32, C33, C34, and C35; power supply V31; power supply V32; and integrated circuit U31; wherein: The output terminal of the signal receiving circuit is connected to the third terminal IN of integrated circuit U31; the first terminal of capacitor C31 is connected to the first terminals of resistors R31 and R32, and the first terminal of capacitor C32; the second terminal of capacitor C31 is grounded together with the second terminals of resistors R31 and C32; the second terminal of resistor R32 is connected to the second terminal of resistor R33 and the second terminal ND2 of integrated circuit U31; the first terminal of resistor R33 is connected to the first terminal of capacitor C33; the second terminal of capacitor C33 is connected to the first terminal ND1 of integrated circuit U31; the fourth terminal GND of integrated circuit U31 is connected to ground GND; the fifth terminal VTT of integrated circuit U31 is connected to the power supply. V31 is connected; the sixth terminal OUT1 of integrated circuit U31 is connected to the first terminal of resistor R34; the seventh terminal OUT2 of integrated circuit U31 is connected to the second terminal of resistor R34 and the first terminal of resistor R35; the eighth terminal GNN of integrated circuit U31 is connected to the first terminal of resistor R38; the second terminal of resistor R38 is connected to the first terminal of capacitor C34; the second terminal of capacitor C34 is connected to ground GND; the second terminal of resistor R35 is connected to the second terminal of resistor R36, the first terminal of resistor R37, and the first terminal of capacitor C35; the first terminal of resistor R36 is connected to power supply V32; resistor R37 is connected to the second terminal of capacitor C35, which is the output terminal of the signal processing circuit.

4. The nodal-type formation water mineral chemical monitoring device in underground coal mine boreholes as described in claim 1, characterized in that, The chemical analysis circuit is capable of performing chemical ion analysis calculations on the signal; the chemical analysis circuit includes: resistors R41, R42, R43, R44, R45, and R46; capacitors C41, C42, C43, C44, C45, and C46; power supplies V41, V42, and V43; and operational amplifiers IC41, IC42, and IC43; wherein: The first terminal of resistor R41 is connected to the output terminal of the signal processing circuit; the second terminal of resistor R41 is connected to the second terminal of capacitor C41 and the first terminal of operational amplifier IC41; the first terminal of resistor R42 is connected to power supply V41; the second terminal of resistor R42 is connected to the first terminal of capacitor C42 and the second terminal of operational amplifier IC41; the second terminal of capacitor C42 is connected to ground GND; the first terminal of capacitor C41 is connected to the first terminal of resistor R43; the second terminal of resistor R43 is connected to the third terminal of operational amplifier IC41; the fourth terminal of operational amplifier IC41 is connected to power supply V42; the fifth terminal of operational amplifier IC41 is connected to the first terminal of resistor R44 and the first terminal of capacitor C43; capacitor C4...

3. The second terminal is connected to the first terminal of capacitor C44 and the second terminal of operational amplifier IC42; the second terminal of resistor R44 is connected to the third terminal of operational amplifier IC42, the second terminal of capacitor C45, and the first terminal of resistor R45; the first terminal of operational amplifier IC42 is connected to the first terminal of capacitor C45; the first terminal of resistor R46 is grounded to GND; the second terminal of resistor R46 is connected to the second terminal of operational amplifier IC43; the second terminal of resistor R45 is connected to the first terminal of capacitor C46 and the first terminal of operational amplifier IC43; the third terminal of operational amplifier IC43 is connected to power supply V43; the second terminal of capacitor C46 is connected to the fourth terminal of operational amplifier IC43, which is the output terminal of the chemical analysis circuit.

5. The nodal-type formation water mineral chemical monitoring device in underground coal mine boreholes as described in claim 1, characterized in that, The signal transmission circuit can stably transmit signals to the ground; the signal transmission circuit includes: resistors R51, R52, R53, R54, and R55; capacitors C51, C52, C53, C54, and C55; power supplies V51, V52, V53, V54, and V55; connector JP51; operational amplifier IC51; operational amplifier IC52; and integrated circuit U51; wherein: The first terminal of resistor R51 is connected to the third terminal of connector JP51; the first terminal of resistor R52 is connected to the output terminal of the chemical analysis circuit; the first terminal of capacitor C51 is connected to the second terminal of connector JP51; the first terminal of capacitor C52 is connected to the first terminal of connector JP51; the second terminal of resistor R51 is connected to the first terminal of operational amplifier IC51; the second terminal of resistor R52 is connected to the second terminal of operational amplifier IC51; the second terminal of capacitor C51 and the fourth terminal of operational amplifier IC51 are connected to power supply V52; the second terminal of capacitor C52, the second terminal of resistor R53, and the fourth terminal GND of integrated circuit U51 are connected to ground GND; the third terminal of operational amplifier IC51 is connected to power supply V51; the fifth terminal of operational amplifier IC51 is connected to the first terminal of resistor R53 and the first terminal of capacitor C53; the first terminal of capacitor C53 is connected to the fourth terminal of connector JP51. Connections: Terminal JP1 of integrated circuit U51 is connected to the second terminal of capacitor C53; Terminal E1 of integrated circuit U51 is connected to the third terminal E2 of integrated circuit U51; Terminal JP2 of integrated circuit U51 is connected to the second terminal of capacitor C53; Terminal VCS of integrated circuit U51 is connected to resistor R54; Terminal OUT of integrated circuit U51 is connected to the first terminal of resistor R55; The first terminal of resistor R54 is connected to power supply V53; The second terminal of resistor R55 is connected to the first terminal of capacitor C55 and the first terminal of operational amplifier IC52; The second terminal of operational amplifier IC52 is connected to power supply V56; The third terminal of operational amplifier IC52 is connected to power supply V54; The fourth terminal of operational amplifier IC52 is connected to power supply V55; The second terminal of capacitor C55 is connected to the fifth terminal of operational amplifier IC52, which is the output terminal of the signal transmission circuit.

6. A method for monitoring the mineral and chemical composition of formation water in underground coal mine boreholes at nodal points, characterized in that, This method is based on the nodal-type formation water mineral chemical monitoring device in underground coal mine boreholes as described in any one of claims 1 to 5, and includes the following steps: Step 1: The signal receiving circuit is activated to receive real-time monitoring signals of mineral ions in formation water from underground coal mine boreholes. The monitoring signals are transmitted in the form of current and voltage. Step 2: The signal processing circuit starts receiving monitoring signals from the signal receiving circuit, processes the received signals, and transmits the monitoring signals to the chemical analysis circuit. Step 3: The chemical analysis circuit analyzes and processes the monitoring signal and transmits the processed signal to the signal transmission circuit. Step 4: The signal transmission circuit receives the signal from the signal processing circuit and transmits the signal to the ground through the signal transmission circuit.

Images