Intelligent mine promoting and pumping device based on adaptive variable diameter and ultrasonic cavitation

Abstract

The application aims to provide an intelligent mine promoting and pumping device based on adaptive variable diameter and ultrasonic cavitation, belonging to the technical field of coal seam permeability improvement, comprising an intelligent control system, a cable automatic receiving and sending vehicle, an ultrasonic generator, a control cabin, a dynamic variable diameter drilling traction device and an ultrasonic cavitation transducer; the output ends of the intelligent control system and the ultrasonic generator are connected with the cable automatic receiving and sending vehicle respectively; the inside of the control cabin, the dynamic variable diameter drilling traction device and the ultrasonic cavitation transducer is penetrated by a signal transmission cable, the output end of the cable automatic receiving and sending vehicle is connected with the control cabin through a plug; the control cabin, the dynamic variable diameter drilling traction device and the ultrasonic cavitation transducer are connected in sequence through plugs; one end of the ultrasonic cavitation transducer is connected with a drilling inner wall flattening device or a drilling detection device through a plug. The application enables the equipment to adapt to the drilling size and wall shape and freely walk close to the drilling wall through the dynamic variable diameter drilling traction device.

Description

Technical Field

[0001] This invention belongs to the field of coal seam permeability enhancement technology, specifically relating to an intelligent mine pumping device based on adaptive diameter variation and ultrasonic cavitation. Background Technology

[0002] Coalbed methane (CBM) is a byproduct of coal mining. Its release into the atmosphere exacerbates the greenhouse effect, but its utilization represents a high-quality, clean energy source. my country's coal seams generally exhibit "three highs and one low" characteristics: high content, high ground stress, high gas pressure, and low permeability. This makes efficient CBM extraction difficult, necessitating technological innovation to improve extraction efficiency.

[0003] Hydraulic fracturing is widely used in existing coal seam permeability enhancement technologies. While it can generate large-scale fractures in the coal seam, it is prone to water-locking effects. For reservoirs with complex geological conditions, it is difficult to form an effective fracture network, resulting in poor gas desorption and seepage. To improve coalbed methane extraction efficiency and overcome the shortcomings of existing technologies, intelligent equipment based on ultrasonic cavitation is introduced. Ultrasonic cavitation generates focused microjets and creates a localized high-temperature, high-pressure environment, breaking through pore water lock, promoting gas desorption, and significantly improving coal permeability. Intelligent technology can acquire and analyze data in real time, enabling real-time monitoring and precise control of the mining process. In conclusion, there is an urgent need to develop a highly intelligent, safe, and efficient coal seam permeability enhancement system that can adapt to complex terrain conditions, achieving safe and efficient coalbed methane development under harsh geological conditions. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent mine drainage device based on adaptive diameter variation and ultrasonic cavitation, so as to realize the transformation of coal body fractures under complex conditions, expand the permeability enhancement range, and improve the intelligence level of permeability enhancement facilities.

[0005] The present invention adopts the following technical solution: An intelligent mining pumping device based on adaptive variable diameter and ultrasonic cavitation includes an intelligent control system, an automatic cable delivery vehicle, an ultrasonic generator, a control cabin, a dynamic variable diameter drilling traction device, and an ultrasonic cavitation transducer. The intelligent control system and the output of the ultrasonic generator are respectively connected to the automatic cable take-up and delivery vehicle; signal transmission cables run through the control cabin, the dynamic variable diameter drilling traction device, and the ultrasonic cavitation transducer; the output of the automatic cable take-up and delivery vehicle is connected to the control cabin via a connector; the control cabin, the dynamic variable diameter drilling traction device, and the ultrasonic cavitation transducer are connected sequentially via connectors; one end of the ultrasonic cavitation transducer is connected to a borehole inner wall leveling device or a borehole detection device via a connector. The control cabin, ultrasonic cavitation transducer, borehole inner wall leveling device and borehole detection device are all equipped with passive borehole diameter changing components at both ends. The dynamic variable diameter drilling traction device consists of six single-module traction drive units.

[0006] Furthermore, the passive aperture reducing assembly includes a symmetrically arranged fixed bracket, a movable bracket, supporting rollers, roller supporting rods, springs, and limiting screws; the fixed bracket and the movable bracket are both sleeved on the outer walls of the control chamber, the ultrasonic cavitation transducer, the borehole inner wall leveling device, and the borehole detection device, and the fixed bracket and the movable bracket are connected by a spring, with the limiting screw located inside the movable bracket; The roller support link includes two Y-shaped support rods. One end of each Y-shaped support rod is connected to a fixed bracket and a movable bracket by bolts, and the other end is provided with a transverse opening for rotatable connection with the support roller.

[0007] Furthermore, the number of limiting screws and springs is three each, and the included angle between adjacent limiting springs is 120°.

[0008] Furthermore, the single-module traction drive unit includes a main body compartment, a PCB circuit board is provided inside the main body compartment, and three motor compartments are evenly arranged on the outside of the main body compartment, with motors installed inside the motor compartments. One end of the main compartment is provided with a connecting block, and the other end is provided with a variable diameter adjustment slider; two adjacent single-module traction drive units are symmetrically connected by bolts to fix the connecting block. The connecting block is connected to one end of the motor compartment through an elbow connecting rod. The other end of the motor compartment away from the connecting block is provided with a drive wheel. The drive wheel is connected to the variable diameter adjustment slider through a connecting rod, and an embedded spring is sleeved on the connecting rod.

[0009] Furthermore, the dynamic variable diameter drilling traction device is suitable for drilling diameters of 94-133 mm.

[0010] Furthermore, the control cabin, dynamic diameter-changing drilling traction device, borehole inner wall leveling device, and borehole detection device are all equipped with waterproof connectors.

[0011] Furthermore, the aircraft insert is equipped with a protective plate that strengthens the connection.

[0012] Furthermore, the number of the protective plates is three.

[0013] Furthermore, the borehole inner wall smoothing device includes a chamber, one end of which is provided with a conical drill bit.

[0014] Furthermore, the drilling detection device includes a cabin, on which a high-definition camera and LED lights are installed.

[0015] The beneficial effects of this invention are as follows: 1. This invention allows for flexible adjustment of power levels based on different application scenarios and coal seam pore characteristics. This enables ultrasonic cavitation to act precisely on coal seam pores, increasing pore connectivity and permeability, and also providing continuous permeability enhancement, thereby improving efficiency.

[0016] 2. The dynamic variable diameter drilling traction device equipped with this invention can adapt to drilling holes of different sizes, with a range of 94mm-133mm in diameter, ensuring that the ultrasonic equipment moves smoothly inside the drilling hole.

[0017] 3. This invention can monitor the equipment's operating status and work progress in real time through an intelligent control system, which greatly reduces the risks and labor intensity of manual operation, while also improving the equipment's operational safety and reliability.

[0018] 4. This invention can make the inner wall of the borehole smooth and even, improve the working environment, and increase work efficiency.

[0019] 5. The automatic cable take-up and delivery vehicle in this invention supports automatic cable take-up, driving the entire set of equipment to recover, saving time and effort, and is convenient and fast.

[0020] 6. This invention meets waterproof requirements and is suitable for complex and dangerous working environments underground.

[0021] In summary, this invention provides an intelligent mine drainage device based on adaptive variable diameter and ultrasonic cavitation. Through a dynamic variable diameter borehole traction device, the equipment can adapt to borehole size and wall shape, moving freely close to the borehole wall. A borehole inner wall smoothing device clears obstacles within the borehole, making the borehole wall smooth. Compared to traditional processes, this invention significantly saves operating time and space and improves permeability enhancement efficiency. This invention effectively disrupts the coal seam structure, forming micro-cracks and channels, thereby increasing the permeability of the coal seam. The ultrasonic permeability enhancement system used in this invention can dynamically control the ultrasonic cavitation effect by adjusting the frequency, performing targeted permeability enhancement and significantly improving the range and effect of coal seam permeability enhancement. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the pumping device of the present invention; Figure 2 Front view of the automated cable delivery vehicle; Figure 3 This is a structural schematic diagram of the control cabin; Figure 4 This is a schematic diagram of the passive aperture variable diameter assembly; Figure 5 This is a schematic diagram of the structure of a single-module traction drive unit; Figure 6 A schematic diagram of the borehole inner wall smoothing device; Figure 7This is a schematic diagram of the borehole inspection device; Figure 8 This is a schematic diagram of the connecting rod structure; Figure 9 This is a structural schematic diagram of an elbow connector. Figure 10 This is an application flowchart of the present invention; The components include: 1-Intelligent control system; 2-Automatic cable take-up and delivery vehicle; 3-Ultrasonic generator; 4-Control compartment; 5-Passive borehole diameter changing assembly; 6-Dynamic diameter changing drilling traction device; 7-Single module traction drive unit; 8-Ultrasonic cavitation transducer; 9-Borehole inner wall smoothing device; 10-Borehole detection device; 201-Handrail; 202-Emergency stop button; 203-Start button; 204-Indicator light; 205-Automatic cable take-up controller; 206-Clutch knob; 207-Cable reel locker; 208-Manual cable take-up device. Components: 209-Connection port; 401-Aircraft connector; 402-Waterproof connector; 501-Fixed bracket; 502-Modible bracket; 503-Support roller; 504-Roller support rod; 505-Spring; 506-Limit screw; 701-Main body compartment; 702-Connecting block; 703-Elbow connecting rod; 704-Motor compartment; 705-Drive wheel; 706-Embedded spring; 707-Connecting rod; 708-Variable diameter adjusting slider; 901-Conical drill bit; 1001-High-definition camera; 1002-LED light. Detailed Implementation

[0023] The present invention will be further described below with reference to embodiments, but it should not be construed that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention should be included within the scope of protection of the present invention.

[0024] As shown in the figure, an intelligent mining pumping device based on adaptive variable diameter and ultrasonic cavitation includes an intelligent control system 1, an automatic cable delivery vehicle 2, an ultrasonic generator 3, a control cabin 4, a dynamic variable diameter drilling traction device 6, and an ultrasonic cavitation transducer 8; the ultrasonic cavitation transducer 8 can convert electrical power signals into high-frequency mechanical vibration energy; the automatic cable delivery vehicle 2 needs to be equipped with an independent power supply.

[0025] The output ends of the intelligent control system 1 and the ultrasonic generator 2 are respectively connected to the automatic cable take-up and delivery vehicle 2; signal transmission cables run through the control cabin 4, the dynamic variable diameter drilling traction device 6, and the ultrasonic cavitation transducer 8; the output end of the automatic cable take-up and delivery vehicle 2 is connected to the control cabin 4 via a connecting cable 401; the control cabin 4, the dynamic variable diameter drilling traction device 6, and the ultrasonic cavitation transducer 8 are connected sequentially via a connecting cable 401; one end of the ultrasonic cavitation transducer 8 is connected to a borehole inner wall leveling device 9 or a borehole detection device 10 via a connecting cable 401. The control cabin 4, the ultrasonic cavitation transducer 8, the borehole inner wall leveling device 9, and the borehole detection device 10 are all equipped with passive borehole diameter changing components 5 at both ends. The dynamic variable diameter drilling traction device 6 consists of six single-module traction drive units 7. The dynamic variable diameter drilling traction device 6 is suitable for drilling diameters of 94-133mm.

[0026] The intelligent control system 1 is a mining laptop computer that supports real-time viewing, recording, editing, and control of the robot's motion. The intelligent control system 1 connects to the automatic cable delivery vehicle 2 via a network cable to establish a signal transmission channel. Software monitors the operation process in real time, enabling remote operation and automated operation of the equipment. Operators can monitor the equipment's operating status and work progress in real time within a safe area, significantly reducing the risks and labor intensity of manual operation while improving the equipment's operational safety and reliability, making it particularly suitable for complex and dangerous underground working environments.

[0027] The automatic cable take-up and delivery vehicle 2 includes an emergency stop button 202, a start button 203, an indicator light 204, an automatic take-up controller 205, a clutch knob 206, a spool locker 207, a manual take-up device 208, and a connection port 209. The automatic take-up controller 205 and the manual take-up device 208 support automatic or manual take-up.

[0028] When using the automated cable take-up and delivery vehicle, first press the start button 203, then open the cable reel locking device 207, and then rotate the clutch knob 206. Once the indicator light 204 turns green, it can be operated through the intelligent control system 1. The cable length is 100m, which meets the needs of most working lengths. In case of emergency during operation, immediately press the emergency stop button 202 to stop the operation. The automated cable take-up and delivery vehicle is equipped with a high-precision encoder to monitor the cable pull-out distance in real time. After use, the automated cable take-up and delivery vehicle can automatically retrieve the cable and drive the robot back. If needed, the cable can also be manually retrieved using the manual cable retraction device 208 on the side of the vehicle. In addition, the automated cable take-up and delivery vehicle is equipped with its own power supply.

[0029] The ultrasonic generator 3 includes an explosion-proof housing, input or output ports, a circuit breaker, a main control board, a power board, a fault alarm board, a matching inductor, an output transformer, and a cooling fan. The ultrasonic generator 3 can output 40kHz / 40 / 70 / 80 / 100 / 130kHz electrical power signals to supply the transducer. It also features automatic frequency tracking and compensation circuitry, strong anti-interference capability, and high output frequency accuracy.

[0030] The control cabin 4 is mainly responsible for receiving, converting, and outputting signals.

[0031] The passive borehole diameter reducing assembly 5 includes a symmetrically arranged fixed bracket 501, a movable bracket 502, a support roller 503, a roller support connecting rod 504, a spring 505, and a limiting screw 506. The fixed bracket 501 and the movable bracket 502 are both sleeved on the outer wall of the control cabin 4, the ultrasonic cavitation transducer 8, the borehole inner wall leveling device 9, and the borehole detection device 10. The fixed bracket 501 and the movable bracket 502 are connected by the spring 505. The limiting screw 506 is located inside the movable bracket 502. The tail end of the limiting screw 506 has a movable screw, which is used to adjust the distance between the fixed bracket 501 and the movable bracket 502 to adjust the height of the support roller 503, so that the support roller 503 can fit tightly against the borehole inner wall. When moving through a borehole with a gradually decreasing diameter, the support roller 503 is compressed, and the roller support link 504 drives the movable bracket 502 to move backward. The spring 505 is pulled open. When the borehole diameter returns to normal or increases, the spring 505 will drive the movable bracket 502 to move, so that the support roller 503 is pressed tightly against the inner wall of the borehole, ensuring sufficient friction to maintain the movement.

[0032] The roller support link 504 includes two Y-shaped support rods. One end of each Y-shaped support rod is connected to the fixed bracket 501 and the movable bracket 502 by bolts, and the other end is provided with a transverse opening for rotatable connection with the support roller 503.

[0033] The number of limiting screws 506 and springs 505 are three in total. The included angle between adjacent limiting springs 506 is 120°, and the included angle between adjacent springs 505 is 120°.

[0034] The single-module traction drive unit 7 includes a main body compartment 701, which is equipped with a PCB circuit board for receiving and converting signals. Three motor compartments 704 are evenly arranged on the outside of the main body compartment 701, and motors are installed in the motor compartments 704 to provide power to the drive wheels. One end of the main body compartment 701 is provided with a connecting block 702, and the other end is provided with a variable diameter adjustment slider; two adjacent single-module traction drive units 7 are symmetrically connected by bolts fixing the connecting block 702. The connecting block 702 is connected to one end of the motor compartment 704 through an elbow connecting rod 703. The other end of the motor compartment 704 away from the connecting block 702 is provided with a drive wheel 705. The drive wheel 705 is connected to the variable diameter adjustment slider through a connecting rod 707. An embedded spring 706 is sleeved on the connecting rod 707.

[0035] Before operation, the dynamic diameter-changing drilling traction device 6 requires pre-adjustment of the fixed diameter-changing adjusting slider 708 to ensure that the drive wheel 705 can closely fit the inner wall of the borehole. During operation, as the borehole diameter gradually decreases, the drive wheel 705 is compressed, transmitting pressure to the connecting rod 707, which compresses the embedded spring 706 to achieve diameter change. As the borehole diameter gradually increases, the embedded spring 706 stretches, causing the connecting rod 707 and the diameter-changing adjusting slider 708 to gradually return to their original state to accommodate the increasing borehole diameter.

[0036] The control cabin 701, the dynamic variable diameter drilling traction device 6, the borehole inner wall leveling device 9, and the borehole detection device 10 are all equipped with waterproof connectors 402 on their mounting brackets 401. The function of the waterproof connectors 402 is to ensure sealing by filling them with positive pressure gas.

[0037] The aircraft connector 401 is equipped with a protective plate that strengthens the connection.

[0038] The number of protective plates is three.

[0039] The ultrasonic cavitation transducer 8 can convert electrical power signals into high-frequency mechanical vibration energy to perform 360° all-round ultrasonic permeation enhancement on the surrounding coal body.

[0040] The borehole inner wall smoothing device 9 includes a chamber, one end of which is equipped with a conical drill bit 901. The conical drill bit 901, through rapid rotation, effectively removes blockages such as silt and stone chips from the borehole, ensuring a smooth inner wall and providing a favorable environment for equipment operation. Positive pressure gas is introduced into the waterproof connector 402 to ensure the airtightness of the borehole inner wall smoothing device. The efficient cleaning operation using its conical drill bit ensures that all parts within the borehole are smooth and unobstructed, providing a reliable guarantee for the stable operation of the equipment.

[0041] The borehole inspection device 10 includes a chamber, on which a high-definition camera 1001 and an LED light 1002 are installed. The LED light 1002 and the high-definition camera 1001 can transmit images of the borehole interior to the operating terminal in real time, realizing real-time video recording and image acquisition functions.

[0042] The above embodiments are a further detailed description of the present invention, but should not be construed as limiting the scope of protection of the present invention. All simple modifications and reasonable extensions based on the core technical features of the present invention should fall within the scope of protection of the present invention.

Claims

1. A smart mine pumping device based on adaptive variable diameter and ultrasonic cavitation, characterized in that: It includes an intelligent control system (1), an automatic cable delivery vehicle (2), an ultrasonic generator (3), a control cabin (4), a dynamic variable diameter drilling traction device (6), and an ultrasonic cavitation transducer (8). The output ends of the intelligent control system (1) and the ultrasonic generator (2) are respectively connected to the cable automatic take-up and delivery vehicle (2); the control cabin (4), the dynamic variable diameter drilling traction device (6) and the ultrasonic cavitation transducer (8) are connected by signal transmission cables, and the output end of the cable automatic take-up and delivery vehicle (2) is connected to the control cabin (4) through the aviation connector (401); the control cabin (4), the dynamic variable diameter drilling traction device (6) and the ultrasonic cavitation transducer (8) are connected in sequence through the aviation connector (401); one end of the ultrasonic cavitation transducer (8) is connected to the borehole inner wall leveling device (9) or the borehole detection device (10) through the aviation connector (401). The control cabin (4), ultrasonic cavitation transducer (8), borehole inner wall smoothing device (9) and borehole detection device (10) are all equipped with passive diameter changing components (5) at both ends. The dynamic variable diameter drilling traction device (6) consists of six single-module traction drive units (7).

2. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 1, characterized in that: The passive aperture reducing assembly (5) includes a fixed bracket (501), a movable bracket (502), a support roller (503), a roller support link (504), a spring (505), and a limiting screw (506) arranged symmetrically. The fixed bracket (501) and the movable bracket (502) are both sleeved on the outer wall of the control cabin (4), the ultrasonic cavitation transducer (8), the borehole inner wall leveling device (9), and the borehole detection device (10). The fixed bracket (501) and the movable bracket (502) are connected by a spring (505), and the limiting screw (506) is located inside the movable bracket (502). The roller support link (504) includes two Y-shaped support rods. One end of each Y-shaped support rod is connected to the fixed bracket (501) and the movable bracket (502) by bolts, and the other end is provided with a transverse opening, which is rotatably connected to the support roller (503).

3. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 2, characterized in that: The number of limiting screws (506) and springs (505) is three each. The included angle between adjacent limiting springs (506) is 120° and the included angle between adjacent springs (505) is 120°.

4. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 1, characterized in that: The single-module traction drive unit (7) includes a main body compartment (701), a PCB circuit board is provided inside the main body compartment (701), and three motor compartments (704) are evenly arranged on the outside of the main body compartment (701), and motors are provided inside the motor compartments (704); One end of the main compartment (701) is provided with a connecting block (702), and the other end is provided with a variable diameter adjustment slider; two adjacent single-module traction drive units (7) are symmetrically connected by bolts to the connecting block (702). The connecting block (702) is connected to one end of the motor compartment (704) through the elbow connecting rod 703. The other end of the motor compartment (704) away from the connecting block (702) is provided with a drive wheel (705). The drive wheel (705) is connected to the variable diameter adjustment slider through a connecting rod (707). An embedded spring (706) is sleeved on the connecting rod (707).

5. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 1, characterized in that: The dynamic variable diameter drilling traction device (6) is suitable for drilling diameters of 94-133 mm.

6. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 1, characterized in that: Waterproof connectors (402) are provided on the aviation plugs (401) of the control cabin (701), the dynamic variable diameter drilling traction device (6), the drilling inner wall leveling device (9), and the drilling detection device (10).

7. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 6, characterized in that: The aircraft insert (401) is provided with a protective plate that strengthens the connection.

8. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 7, characterized in that: The number of protective plates is three.

9. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 1, characterized in that: The borehole inner wall smoothing device (9) includes a chamber, one end of which is provided with a conical drill bit (901).

10. The intelligent mine pumping device based on adaptive variable diameter and ultrasonic cavitation according to claim 1, characterized in that: The borehole detection device (10) includes a cabin, on which a high-definition camera (1001) and an LED light (1002) are provided.

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