Coal rock maceral visual recognition device for coal-bed gas well

Abstract

The invention provides a coal rock maceral visual recognition device for a coal-bed gas well, and relates to the technical field of coal rock in-situ recognition. The fixing cover is arranged, when the fixing cone body is inserted into a coal seam, the fixing cover covers loose coal around the fixing cone body, the loose coal is prevented from falling off, meanwhile, the funnel-shaped expansion pipe body is arranged, expansion pipe bolts are used for promoting the expansion pipe body to expand, and at the moment, the cone thorn body and the expansion plate body on the expansion pipe body are erected; the expansion pipe main body extrudes the coal seam, the cone thorn main body is inserted into the coal seam to assist in fixing, the expansion plate main body is used for separating the coal seam, at the moment, the device spray head starts to spray water to wet the soft coal in the fixing cover, the cohesion among soft coal particles is increased, and the structure of the coal is more stable; the stability of the device during fixed-point identification can be ensured, and the accuracy and reliability of identification can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal rock identification, and in particular to a device for visually identifying coal rock microscopic components for coalbed methane wells. Background Art

[0002] The device for visual identification of coal rock microscopic components for coalbed methane wells is a device used in coalbed methane wells to observe and analyze the borehole coal wall to achieve visual identification of in-situ coal rock microscopic components, thereby helping to understand in-situ coal rock characteristics, evaluate coalbed methane resource potential, and formulate reservoir transformation plans.

[0003] The invention, published in Chinese Patent Publication No. CN119510705B, provides a device and method for testing the performance of a coal rock identification sensor. The device comprises an environmental simulation unit, a motion simulation unit, and a computing terminal. The environmental simulation unit is used to construct the distribution and relative relationships of a coal rock model; the motion simulation unit is used to achieve X- and Y-axis motion of the coal rock identification sensor, collecting coal rock structural data at different locations; and the computing terminal is used to receive the coal rock structural data collected by the coal rock identification sensor, track the coal rock layer line, and identify the coal rock structure. This device and method can accurately test the accuracy and grade of the coal rock identification sensor, providing a robust calibration function, thereby verifying the sensor's recognition capabilities and promoting technological advancement and iteration of coal rock identification sensors.

[0004] When using existing visual identification devices for coal rock microscopic components, the device is first moved to the identification area, and then a fixing cone is inserted into the coal seam to secure the device. However, when the fixing cone is inserted into the coal seam, the surrounding coal seam loosens, causing the coal wall to collapse, affecting the stability of the device during identification. Falling coal blocks can also affect the safe operation of the sensor.

[0005] Therefore, it is necessary to develop a visual identification device for coal rock microscopic components for coalbed methane wells to solve the problems of easy collapse of the coal wall around the fixed cone, unstable fixation, and lack of effective protection of the sensor in existing devices and technologies. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a device for visually identifying the microscopic components of coal rocks for coalbed methane wells, which solves the problems of easy collapse of the coal wall around the fixed cone, unstable fixation, and lack of effective protection of the sensor.

[0007] To solve the above technical problems, the technical solution adopted by the present invention is as follows: A device for visually identifying coal macerals for coalbed methane wells, comprising: a main body of the visual identification device, a water pump and water tank main body is rotatably connected to the top of the main body of the visual identification device, an operating rod is fixedly connected to the top of the water pump and water tank main body, a fixed platform is fixedly connected to the outer wall of the operating rod, an electric telescopic rod is fixedly connected to the side of the fixed platform, a fixed cover is fixedly connected to one end of the electric telescopic rod, a fixed cone main body is fixedly connected to the inner wall of the fixed cover, an expansion tube main body is arranged on the side of the fixed cone main body, the expansion tube main body is fixedly connected to the fixed cover, a cone thorn main body is fixedly connected to the middle position of the outer wall of the expansion tube main body, an expansion plate main body is fixedly connected to the side of the outer wall of the expansion tube main body, a cone head main body is fixedly connected to one end of the expansion tube main body, an expansion tube bolt is threadedly connected to the inside of the expansion tube main body, a water tank pipeline is arranged on the side of the operating rod, the water tank pipeline is fixedly communicated with the water pump and water tank main body, a spray head pipeline is fixedly connected to the outer wall of the electric telescopic rod, and a device spray head is fixedly connected to one end of the spray head pipeline.

[0008] Preferably, the main body of the visual identification device can be an underground high-resolution ultrasonic imager, mainly used for large-scale scanning underground; or it can be an AI-driven microscopic identification system for high-precision quantitative scanning of local components.

[0009] Preferably, the main body of the visual identification device can rotate relative to the water pump and water tank main body to achieve omnidirectional scanning of the microscopic components of the annular coal wall in the wellbore.

[0010] Preferably, a pair of expansion plate bodies are symmetrically arranged about the horizontal central axis of the expansion tube main body, and the expansion tube main body is funnel-shaped.

[0011] Preferably, the water pump and water tank main body, the water tank pipeline, the fixed platform, the electric telescopic rod, the spray head pipeline, and the device spray head are communicated, and the device spray head is fixedly connected to the fixed cover.

[0012] Preferably, a platform spring is fixedly connected to the top of the fixed platform, a collision-proof shed main body is fixedly connected to the top of the platform spring, and the collision-proof shed main body is snap-connected to the operating rod.

[0013] Preferably, a collision-proof strip chute is opened inside the collision-proof shed main body, a collision-proof strip main body is slidably connected to the inside of the collision-proof strip chute, a collision-proof strip spring is fixedly connected to the bottom of the collision-proof strip main body, the collision-proof strip spring is fixedly connected to the electric telescopic rod, and a telescopic rod spring is fixedly connected to the bottom of the collision-proof shed main body, and the telescopic rod spring is fixedly connected to the electric telescopic rod.

[0014] Preferably, the collision-proof shed main body is used to protect the main body of the visual identification device, and the collision-proof strip main body is used to protect the electric telescopic rod.

[0015] Preferably, the expansion tube bolt penetrates through the inside of the fixed cover. One end of the expansion tube bolt is fixedly connected with a bolt gear. The bottom of the bolt gear meshes with a transmission gear. The bolt gear can slide along the tooth surface of the transmission gear. The transmission gear is rotatably connected to the fixed cover. The bottom of the transmission gear meshes with a motor gear. The motor gear is fixedly connected to the output end of the servo motor. The servo motor is fixedly connected to the fixed cover.

[0016] Preferably, a fixed cone motor is fixedly connected inside the fixed cone main body. The output end of the fixed cone motor is fixedly connected with a motor rotating shaft. A transmission belt is wound around the outer wall of the motor rotating shaft. The side of the transmission belt is closely attached to a transmission rotating shaft. A first gear is fixedly connected to the outer wall of the transmission rotating shaft. A first side insertion cone meshes with the side of the first gear. A first limiting ring is engaged and connected to the outer wall of the first side insertion cone. The first limiting ring is fixedly connected to the fixed cone main body.

[0017] Preferably, a second gear is arranged at the bottom of the first gear. The second gear is fixedly connected to the transmission rotating shaft. A third gear meshes with the side of the second gear. The third gear is rotatably connected to the fixed cone main body. A second side insertion cone meshes with the outer wall of the third gear. A second limiting ring is engaged and connected to the outer wall of the second side insertion cone. The second limiting ring is fixedly connected to the fixed cone main body.

[0018] Preferably, the size of the first gear is the same as that of the second gear, and the size of the first side insertion cone is the same as that of the second side insertion cone.

[0019] Compared with the prior art, the beneficial effects of the present invention include: a fixed cover is provided. When the fixed cone main body is inserted into the coal seam, the fixed cover covers the loose coal around the fixed cone main body to prevent the loose coal from falling. The falling of the coal may cause the fixed cone main body to become loose, affecting the stable identification of the main body of the visual recognition device. At the same time, it prevents the falling coal blocks from hitting the equipment or affecting the working environment, and also reduces the safety hazards caused by the falling of coal blocks. At the same time, a funnel-shaped expansion tube main body is provided. The expansion tube bolt is used to promote the expansion of the expansion tube main body. At this time, the cone spike main body and the expansion plate main body on the expansion tube main body stand up. The expansion tube main body squeezes the coal seam, making the coal seam more compact. The cone spike main body is inserted into the coal seam for auxiliary fixation, which can make the connection between the device and the coal seam more stable and ensure that the device maintains a stable position in the coal seam. The expansion plate main body is used to separate the coal seam. At this time, the device nozzle starts to spray water to wet the soft coal inside the fixed cover. The amount of sprayed water should be appropriate to increase the bonding force between the soft coal particles, making the structure of the coal more stable and reducing the possibility of coal body collapse. The expansion plate main body is used to divide the coal seam to achieve the effect of dry-wet separation, and to a certain extent, it plays a role in preventing the water inside the fixed cover from flowing out, which is beneficial to ensuring the stability of the device during fixed-point identification and facilitating the improvement of the accuracy and reliability of identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0021] Figure 1 is a front view structural schematic diagram of a visual recognition device for coal macerals in coalbed methane wells according to an embodiment of the present invention;

[0022] Figure 2 is an enlarged structural schematic diagram of the main part of an anti-collision shed according to an embodiment of the present invention;

[0023] Figure 3 is an exploded structural schematic diagram of the fixed cover part according to an embodiment of the present invention;

[0024] Figure 4 is an enlarged structural schematic diagram of the water source delivery part according to an embodiment of the present invention;

[0025] Figure 5 is an enlarged structural schematic diagram of the main part of an expansion tube according to an embodiment of the present invention;

[0026] Figure 6 is an exploded structural schematic diagram of the expansion of the main part of the expansion tube according to an embodiment of the present invention;

[0027] Figure 7 is an enlarged structural schematic diagram of the main part of an anti-collision strip according to an embodiment of the present invention;

[0028] Figure 8 is an exploded structural schematic diagram of the main part of an anti-collision strip according to an embodiment of the present invention;

[0029] Figure 9 is an enlarged structural schematic diagram of the transmission gear part according to an embodiment of the present invention;

[0030] Figure 10 is an internal structural schematic diagram of the main part of a fixed cone according to an embodiment of the present invention.

[0031] Reference numerals in the figure: 1. Main body of the visual recognition device; 2. Main body of the water pump water tank; 3. Operating rod; 4. Fixed platform; 5. Electric telescopic rod; 6. Fixed cover; 7. Main body of the fixed cone; 8. Main body of the expansion tube; 9. Main body of the cone thorn; 10. Main body of the expansion plate; 11. Main body of the cone head; 12. Bolt of the expansion tube; 13. Water tank pipeline; 14. Sprinkler pipeline; 15. Device sprinkler; 16. Platform spring; 17. Main body of the anti-collision shed; 18. Anti-collision strip chute; 19. Main body of the anti-collision strip; 20. Anti-collision strip spring; 21. Telescopic rod spring; 22. Bolt gear; 23. Transmission gear; 24. Motor gear; 25. Servo motor; 26. Fixed cone motor; 27. Motor rotating shaft; 28. Transmission belt; 29. Transmission rotating shaft; 30. First gear; 31. First side insertion cone; 32. First limit ring; 33. Second gear; 34. Third gear; 35. Second side insertion cone; 36. Second limit ring. Detailed implementation manners

[0032] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation manners. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as all of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0033] According to the implementation manner of the present invention in combination with Figures 1 to 10Shown is a visualization and identification device for coal macerals in coalbed methane wells, including: a visualization and identification device main body 1, which can be an underground high-resolution ultrasonic imager for large-scale underground scanning, or an AI-driven microscopic identification system for high-precision quantitative scanning of local components. The visualization and identification device main body 1 is used to visually identify the coal macerals in coalbed methane wells. During the identification process, the stability of the device needs to be ensured. The top of the visualization and identification device main body 1 is rotatably connected to a water pump and water tank main body 2. The visualization and identification device main body 1 and the water pump and water tank main body 2 are connected by a rotating shaft. The visualization and identification device main body 1 can rotate at the bottom of the water pump and water tank main body 2. The visualization and identification device main body 1 can rotate one week around the rotating shaft, facilitating a comprehensive identification of the coal seam situation, improving the identification range, and avoiding the situation of only being able to identify a local area. The water pump and water tank main body 2 is a device integrating a water tank and a water pump, used to store water sources and transport water sources. The water pump and water tank main body 2 adopts a small device with a size smaller than that of the visualization and identification device main body 1, and the water storage capacity is sufficient for single use. The weight of the water pump and water tank main body 2 is relatively light and hardly affects the device body. The top of the water pump and water tank main body 2 is fixedly connected to an operating rod 3. The ground equipment is connected to the operating rod 3 through a cable to control the position of the visualization and identification device main body 1. The outer wall of the operating rod 3 is fixedly connected to a fixed platform 4. The side of the fixed platform 4 is fixedly connected to an electric telescopic rod 5. One end of the electric telescopic rod 5 is fixedly connected to a fixed cover 6. The inner wall of the fixed cover 6 is fixedly connected to a fixed cone main body 7. The electric telescopic rod 5 is used to control the movement of the fixed cone main body 7 and push the fixed cone main body 7 into the coal seam to ensure the stability of the device. There is an expansion tube main body 8 on the side of the fixed cone main body 7. The expansion tube main body 8 is fixedly connected to the fixed cover 6. The middle position of the outer wall of the expansion tube main body 8 is fixedly connected to a cone thorn main body 9. The side of the outer wall of the expansion tube main body 8 is fixedly connected to an expansion plate main body 10. The cone thorn main body 9 is used for auxiliary fixation of the coal seam, and the expansion plate main body 10 is used for dividing the coal. One end of the expansion tube main body 8 is fixedly connected to a cone head main body 11. The inside of the expansion tube main body 8 is threadedly connected to an expansion tube bolt 12. The expansion tube bolt 12 is used to control the expansion and contraction of the expansion tube main body 8. There is a water tank pipeline 13 on the side of the operating rod 3. The water tank pipeline 13 is fixedly communicated with the water pump and water tank main body 2. The outer wall of the electric telescopic rod 5 is fixedly connected to a nozzle pipeline 14. One end of the nozzle pipeline 14 is fixedly connected to a device nozzle 15. The device nozzle 15 is used to moisten the coal seam, making the loose coal present a concrete-like form. A pair of expansion plate main bodies 10 is symmetrically arranged about the horizontal central axis of the expansion tube main body 8. The expansion tube main body 8 is funnel-shaped. The water pump and water tank main body 2, the water tank pipeline 13, the fixed platform 4, the electric telescopic rod 5, the nozzle pipeline 14, and the device nozzle 15 are communicated. The device nozzle 15 is fixedly connected to the fixed cover 6. The equally spaced device nozzles 15 are used to ensure the uniformity of the water spraying area.

[0034] According to an embodiment of the present invention in combination with Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 shows that a device for visually identifying macerals of coalbed methane wells, a platform spring 16 is fixedly connected to the top of a fixed platform 4, and a collision protection shed main body 17 is fixedly connected to the top of the platform spring 16. The collision protection shed main body 17 is used to protect the visual identification device main body 1 and the water pump water tank main body 2 to prevent falling objects from hitting the device body. The collision protection shed main body 17 is snap-connected to the operating rod 3. An anti-collision strip chute 18 is opened inside the collision protection shed main body 17, and an anti-collision strip main body 19 is slidably connected inside the anti-collision strip chute 18. The anti-collision strip chute 18 is used to limit the anti-collision strip main body 19 so that the anti-collision strip main body 19 slides along a specified trajectory. The anti-collision strip main body 19 is used to protect the electric telescopic rod 5 to prevent falling objects from colliding with the electric telescopic rod 5. The bottom of the anti-collision strip main body 19 is fixedly connected to an anti-collision strip spring 20, and the anti-collision strip spring 20 is fixedly connected to the electric telescopic rod 5. The bottom of the collision protection shed main body 17 is fixedly connected to a telescopic rod spring 21, and the telescopic rod spring 21 is fixedly connected to the electric telescopic rod 5. The platform spring 16, the anti-collision strip spring 20, and the telescopic rod spring 21 play a buffering role to consume the impact force generated by falling objects. The collision protection shed main body 17 is used to protect the visual identification device main body 1, and the anti-collision strip main body 19 is used to protect the electric telescopic rod 5. An expansion tube bolt 12 passes through the inside of a fixed cover 6. One end of the expansion tube bolt 12 is fixedly connected to a bolt gear 22. A transmission gear 23 is engaged with the bottom of the bolt gear 22. The bolt gear 22 can slide along the tooth surface of the transmission gear 23. The transmission gear 23 is rotatably connected to the fixed cover 6. A motor gear 24 is engaged with the bottom of the transmission gear 23. The motor gear 24 is fixedly connected to the output end of a servo motor 25. The servo motor 25 is fixedly connected to the fixed cover 6. The servo motor 25 is a motor that can precisely control the rotation speed, position, and torque. The servo motor 25 can realize the forward and reverse rotation of the lead screw. It consists of a motor body and a servo driver, and precisely adjusts its own motion state by receiving signals from the controller, featuring high precision, fast response, and strong stability.

[0035] According to an embodiment of the present invention in combination with Figure 10Shown is a device for visually identifying macerals in coalbed methane wells. Inside the fixed cone main body 7, a fixed cone motor 26 is fixedly connected. The fixed cone motor 26 is used to control the operation of the internal structure of the fixed cone main body 7. The output end of the fixed cone motor 26 is fixedly connected to a motor rotating shaft 27. A transmission belt 28 is wound around the outer wall of the motor rotating shaft 27. The side of the transmission belt 28 is closely attached to a transmission rotating shaft 29. A first gear 30 is fixedly connected to the outer wall of the transmission rotating shaft 29. A first side insertion cone 31 is engaged with the side of the first gear 30. A first limiting ring 32 is snap-connected to the outer wall of the first side insertion cone 31. The first limiting ring 32 is fixedly connected to the fixed cone main body 7. A second gear 33 is arranged at the bottom of the first gear 30. The second gear 33 is fixedly connected to the transmission rotating shaft 29. A third gear 34 is engaged with the side of the second gear 33. The third gear 34 is rotatably connected to the fixed cone main body 7. A second side insertion cone 35 is engaged with the outer wall of the third gear 34. A second limiting ring 36 is snap-connected to the outer wall of the second side insertion cone 35. The second limiting ring 36 is fixedly connected to the fixed cone main body 7. The size of the first gear 30 is the same as that of the second gear 33, and the size of the first side insertion cone 31 is the same as that of the second side insertion cone 35. The first side insertion cone 31 and the second side insertion cone 35 move to the outside of the fixed cone main body 7, and the two sides of the fixed cone main body 7 are assisted in being fixed through the first side insertion cone 31 and the second side insertion cone 35.

[0036] In this embodiment, during the use of the device, the ground equipment is connected to the operating rod 3 through a cable, and the main body 1 of the visual recognition device is transported to the coal-rock area to be measured in the target coal seam of the coalbed methane well. At this time, the position of the main body 1 of the visual recognition device is adjusted so that the probe at the bottom of the main body 1 of the visual recognition device is aligned with the specified recognition position. Then, the electric telescopic rod 5 is started. During the operation of the electric telescopic rod 5, its own length is extended. At this time, the electric telescopic rod 5 pushes the fixed cover 6 and the fixed cone main body 7 to move horizontally until the fixed cone main body 7 is inserted into the coal seam. During the extension of the electric telescopic rod 5, the electric telescopic rod 5 drives the anti-collision strip main body 19 to move horizontally through the anti-collision strip spring 20. The anti-collision strip main body 19 slides out from the inside of the anti-collision shed main body 17. The sliding of the anti-collision strip main body 19 is synchronized with the extension of the electric telescopic rod 5. At the same time, during the process of inserting the fixed cone main body 7 into the coal seam, the coal around the fixed cone main body 7 will become loose, and the loose coal is covered by the fixed cover 6. The fixed cover 6 is used to prevent the loose coal from falling. Then, the servo motor 25 is started. The servo motor 25 drives the motor gear 24 to rotate. The motor gear 24 drives the transmission gear 23 to rotate. The transmission gear 23 drives the bolt gear 22 and the expansion tube bolt 12 to rotate. At this time, the bolt gear 22 and the expansion tube bolt 12 move towards the inside of the expansion tube main body 8. Under the action of the expansion tube bolt 12, the expansion tube main body 8 begins to expand. The expansion tube main body 8 changes from a funnel shape to a straight tube shape and squeezes the coal in the original sunken area. At this time, the cone spike main body 9 and the expansion plate main body 10 stand up. The cone spike main body 9 is inserted into the coal seam to play an auxiliary supporting role. The expansion plate main body 10 stands up to divide the coal inside the fixed cover 6. Then, the water pump water tank main body 2 is started. The water pump water tank main body 2 transports the water source in the order of the water tank pipeline 13, the fixed platform 4, the electric telescopic rod 5, and the nozzle pipeline 14, and sprays it out through the device nozzle 15 to wet the coal inside the fixed cover 6. Next, the fixed cone motor 26 is started. The fixed cone motor 26 drives the motor shaft 27 to rotate. The motor shaft 27 drives the transmission shaft 29, the first gear 30, and the second gear 33 to rotate through the transmission belt 28. The first gear 30 drives the first side insertion cone 31 to move horizontally until the first side insertion cone 31 is inserted into the coal rock. At the same time, the second gear 33 drives the third gear 34 to rotate. The third gear 34 drives the second side insertion cone 35 to move horizontally. The second side insertion cone 35 is inserted into the coal rock synchronously with the first side insertion cone 31 to assist in fixing the fixed cone main body 7. When the device is in use, when foreign objects fall on the top of the device, the anti-collision shed main body 17 and the anti-collision strip main body 19 play a protective role. The anti-collision shed main body 17 and the anti-collision strip main body 19 are used to catch the falling objects and prevent the falling objects from directly hitting the device body. When the falling objects hit the anti-collision shed main body 17 and the anti-collision strip main body 19, at this time, the platform spring 16, the anti-collision strip spring 20, and the telescopic rod spring 21 play a buffering role to consume the impact force generated by the falling objects. At the same time, the anti-collision shed main body 17 and the anti-collision strip main body 19 are inclined to facilitate the drainage of the falling objects.Make the falling trajectory of the dropped object far away from the device body to avoid the device being affected during the recognition process.

[0037] A fixed cover 6 is provided. When the fixed cone body 7 is inserted into the coal seam, the fixed cover 6 covers the loosened coal around the fixed cone body 7 to prevent the loosened coal from falling. The falling of the coal may cause the fixed cone body 7 to become loose, affecting the stable identification of the main body 1 of the visualization recognition device. At the same time, it prevents the falling coal blocks from damaging the equipment or affecting the working environment, and also reduces the safety hazards caused by the falling of coal blocks. At the same time, a funnel-shaped expansion tube body 8 is provided. The expansion tube bolt 12 is used to cause the expansion tube body 8 to expand. At this time, the cone thorn body 9 and the expansion plate body 10 on the expansion tube body 8 stand up. The expansion tube body 8 squeezes the coal seam, making the coal seam more compact, which helps to optimize the stress distribution inside the coal seam and reduce the situation of local stress concentration, further enhancing the stability of the coal seam and preventing the deformation or damage of the coal seam caused by uneven stress. The cone thorn body 9 is inserted into the coal seam for auxiliary fixation, which can make the connection between the device and the coal seam more stable, ensure that the device maintains a stable position in the coal seam, and is beneficial to subsequent fixed-point identification and other operations. The expansion plate body 10 is used to separate the coal seam. At this time, the device nozzle 15 starts to spray water to wet the soft coal inside the fixed cover 6, increasing the adhesion between the soft coal particles, making the structure of the coal more stable, and reducing the possibility of the coal body collapsing. The presence of the fixed cover 6 can make the water sprayed by the device nozzle 15 act on the soft coal in a relatively closed space, which helps to improve the uniformity of water spraying, make the humidity of the soft coal more uniform as a whole, and thus better increase the adhesion between coal particles and enhance the stability of the coal body structure. This means that the coal body can better bear the weight and external forces of the device, reducing the risk of the device tilting, shaking or even being buried due to the collapse of the coal body, and providing a more stable support environment for the device. The soft coal is prone to flow in the dry state, which may generate lateral pressure on the device or make the distribution of the coal body around the device uneven. After being wetted, the fluidity of the coal body decreases, and it can maintain a relatively fixed position and shape, making the distribution of the coal body around the device more uniform and the pressure received more balanced, which is beneficial to the stability of the device. The expansion plate body 10 is used to separate the coal seam to achieve the function of separating dry and wet. The design of separating dry and wet makes the dry part of the device not easily affected by the humid environment, realizing the function of non-interference with each other. Separating the coal seam into dry and wet plays a role in preventing water from flowing out of the fixed cover 6 to a certain extent, avoiding the influence of water outflow on the identification of the device, effectively ensuring the accuracy of the device identification, being beneficial to ensuring the stability of the device during fixed-point identification, and facilitating the improvement of the accuracy and reliability of the identification. The stable operation and accurate identification of the device help to improve the working efficiency of the visualization recognition of the coal rock macerals in the coalbed methane well, reducing the repeated operations required due to unstable equipment or inaccurate identification. The main body 1 of the visualization recognition device can rotate relative to the water pump water tank body 2, and can realize the comprehensive recognition of the surrounding annular coal wall by the main body 1 of the visualization recognition device inside the borehole, providing more accurate data support for subsequent coalbed methane extraction and other work, and improving the overall working efficiency.

[0038] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications shall fall within the protection scope of the present invention.

Claims

1. A visual recognition device for coal macerals in coalbed methane wells, characterized in that, Including: A visualization recognition device main body (1), a water pump water tank main body (2) is rotatably connected to the top of the visualization recognition device main body (1), an operating rod (3) is fixedly connected to the top of the water pump water tank main body (2), a fixed platform (4) is fixedly connected to the outer wall of the operating rod (3), an electric telescopic rod (5) is fixedly connected to the side of the fixed platform (4), a fixed cover (6) is fixedly connected to one end of the electric telescopic rod (5), a fixed cone main body (7) is fixedly connected to the inner wall of the fixed cover (6), an expansion tube main body (8) is arranged on the side of the fixed cone main body (7), the expansion tube main body (8) is fixedly connected to the fixed cover (6), a cone thorn main body (9) is fixedly connected to the middle position of the outer wall of the expansion tube main body (8), an expansion plate main body (10) is fixedly connected to the side of the outer wall of the expansion tube main body (8), a cone head main body (11) is fixedly connected to one end of the expansion tube main body (8), an expansion tube bolt (12) is threadedly connected to the inside of the expansion tube main body (8), a water tank pipeline (13) is arranged on the side of the operating rod (3), the water tank pipeline (13) is fixedly communicated with the water pump water tank main body (2), a spray head pipeline (14) is fixedly connected to the outer wall of the electric telescopic rod (5), and a device spray head (15) is fixedly connected to one end of the spray head pipeline (14).

2. The visualization identification device for coal macerals of coalbed methane wells according to claim 1, wherein A pair of the expansion plate main bodies (10) are symmetrically arranged about the horizontal central axis of the expansion tube main body (8), and the expansion tube main body (8) is arranged in a funnel shape.

3. The visualization identification device for maceral of coalbed methane wells according to claim 1, characterized in that The water pump water tank main body (2), the water tank pipeline (13), the fixed platform (4), the electric telescopic rod (5), the spray head pipeline (14), and the device spray head (15) are communicated, and the device spray head (15) is fixedly connected to the fixed cover (6).

4. The visualization identification device for coal macerals of coalbed methane wells according to claim 1, wherein A platform spring (16) is fixedly connected to the top of the fixed platform (4), a collision prevention shed main body (17) is fixedly connected to the top of the platform spring (16), and the collision prevention shed main body (17) is snap-connected to the operating rod (3).

5. The visualization identification device for coal macerals of coalbed methane wells according to claim 4, wherein A collision prevention strip chute (18) is opened inside the collision prevention shed main body (17), a collision prevention strip main body (19) is slidably connected inside the collision prevention strip chute (18), a collision prevention strip spring (20) is fixedly connected to the bottom of the collision prevention strip main body (19), the collision prevention strip spring (20) is fixedly connected to the electric telescopic rod (5), a telescopic rod spring (21) is fixedly connected to the bottom of the collision prevention shed main body (17), and the telescopic rod spring (21) is fixedly connected to the electric telescopic rod (5).

6. The visualization identification device for coal macerals of coalbed methane wells according to claim 5, wherein The collision prevention shed main body (17) is used to protect the visualization recognition device main body (1), and the collision prevention strip main body (19) is used to protect the electric telescopic rod (5).

7. The visualization identification device for maceral of coalbed methane wells according to claim 1, wherein The expansion tube bolt (12) penetrates through the inside of the fixed cover (6), a bolt gear (22) is fixedly connected to one end of the expansion tube bolt (12), a transmission gear (23) is engaged with the bottom of the bolt gear (22), and the bolt gear (22) can slide along the tooth surface of the transmission gear (23); The transmission gear (23) is rotatably connected to the fixed cover (6). The bottom of the transmission gear (23) meshes with a motor gear (24). The motor gear (24) is fixedly connected to the output end of a servo motor (25). The servo motor (25) is fixedly connected to the fixed cover (6).

8. The visual recognition device for coal macerals in coalbed methane wells according to claim 1, characterized in that A fixed cone motor (26) is fixedly connected inside the fixed cone main body (7). The output end of the fixed cone motor (26) is fixedly connected to a motor rotating shaft (27). A transmission belt (28) is wound around the outer wall of the motor rotating shaft (27). A transmission rotating shaft (29) is closely attached to the side of the transmission belt (28). A first gear (30) is fixedly connected to the outer wall of the transmission rotating shaft (29). A first side insertion cone (31) meshes with the side of the first gear (30). A first limiting ring (32) is snap-connected to the outer wall of the first side insertion cone (31). The first limiting ring (32) is fixedly connected to the fixed cone main body (7).

9. The visualization identification device for maceral of coalbed methane well according to claim 8, characterized in that, A second gear (33) is arranged at the bottom of the first gear (30). The second gear (33) is fixedly connected to the transmission rotating shaft (29). A third gear (34) meshes with the side of the second gear (33). The third gear (34) is rotatably connected to the fixed cone main body (7). A second side insertion cone (35) meshes with the outer wall of the third gear (34). A second limiting ring (36) is snap-connected to the outer wall of the second side insertion cone (35). The second limiting ring (36) is fixedly connected to the fixed cone main body (7).

10. The visualization identification device for coal macerals of coalbed methane wells according to claim 9, characterized in that, The size of the first gear (30) is the same as that of the second gear (33). The size of the first side insertion cone (31) is the same as that of the second side insertion cone (35).

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