Coal mine geothermal based split type deep layer extraction utilization device
By introducing limiting blocks and transmission components into the separate deep geothermal extraction device, the problems of connection breakage and water pipe bending caused by support plate swaying were solved, and stable extraction and efficient transportation of geothermal energy were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF MINING & TECH
- Filing Date
- 2026-03-25
- Publication Date
- 2026-06-16
AI Technical Summary
In existing separate deep extraction and utilization devices, the support plate shakes during the operation of the extraction pump, causing the connection with the slide bar group to break. Furthermore, after the support plate is adjusted, the connecting pipe is too long and bends, affecting the water flow.
A device was designed that includes a movable seat, a lifting frame, a sliding frame, a sliding rod, a connecting rod, a transmission plate, a limiting block, and a transmission component. The limiting block fixes the roller shaft, and the transmission component drives the external gear to rotate, reducing the sliding of the mounting frame and the bending of the water pipe, thereby improving the stability and efficiency of extraction.
The installation frame is effectively fixed, reducing the swaying of the support plate, preventing breakage at the connection, and improving the stability of geothermal energy extraction and the efficiency of water pipe transportation.
Smart Images

Figure CN121898026B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of geothermal energy development technology in mines, specifically to a separate deep extraction and utilization device based on coal mine geothermal energy. Background Technology
[0002] Coal mine geothermal energy refers to the thermal energy contained in the strata of coal mining areas. During coal mining, as the mining depth increases, the ground temperature gradually rises, and the underground rock strata and groundwater contain a large amount of thermal energy. Currently, the demand for thermal energy is increasing in many aspects such as building heating and production process heating. Deep geothermal energy, as a clean, stable, and renewable energy source, can provide a new way to supply energy.
[0003] Existing separate deep geothermal extraction and utilization devices require the installation of assembleable sliding rods into the mine for fixation before multiple sets of support plates are lowered into the mine via a lifting frame. Simultaneously, extraction pumps above the support plates are activated to extract the geothermal energy. However, the lack of a limiting structure between the sliding rod assembly and the support plates causes the extraction pumps to shake during operation. This shaking can lead to breakage at the connection between the support plates and the sliding rod assembly, posing a certain risk. Furthermore, after the support plates are adjusted, the connecting pipes may become excessively long, resulting in multiple bends. These bends can affect water flow.
[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention
[0005] The purpose of this invention is to provide a separate deep extraction and utilization device based on coal mine geothermal energy, in order to solve the problem in the above-mentioned background technology that the extraction pump of the separate deep extraction and utilization device will cause the support plate to shake during operation, and the shaking of the support plate will cause the connection between the support plate and the slide rod group to break. The technical solution of this invention provides a solution that is significantly different from the existing technology, which is too simple.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a separation-type deep extraction and utilization device based on coal mine geothermal energy, comprising a mobile seat, a lifting frame installed above the mobile seat, a sliding frame provided below the lifting frame, a sliding rod slidably connected to the inner side of the sliding frame, connecting rods hinged to both sides of the sliding rod, and a transmission plate hinged to the other end of the connecting rod, the transmission plate being slidably connected to the sliding frame, an installation frame also provided below the lifting frame, the installation frame being connected to the rope of the lifting frame's electric hoist, rollers installed on the outer side of the installation frame, the rollers being in contact with the outer wall of the sliding frame, a guide rod fixedly connected to the outer side of the installation frame, a limit block slidably connected to the guide rod, and the limit block being in contact with the transmission plate;
[0007] A transmission assembly, which is disposed inside the mounting frame, and a limiting assembly, which is disposed inside the mounting frame.
[0008] Preferably, the transmission assembly has an external gear disposed inside the mounting frame, and the external gear is connected to the mounting frame via a hollow bearing seat. The mounting frame is rotatably connected to a first rotating shaft via the bearing seat. An internal gear is fixedly sleeved at the middle section of the first rotating shaft. A threaded rod is also rotatably connected to the inside of the mounting frame via the bearing seat, and the threaded rod is connected to the first rotating shaft via a bevel gear set. A square frame is connected to the inside of the mounting frame. An adjusting rod is slidably connected to the inside of the square frame, and the adjusting rod is threadedly connected to the threaded rod. A rotating ring is rotatably connected to the bottom end of the adjusting rod. A toothed plate is slidably connected to the outside of the sliding frame, and the toothed plate meshes with the external gear.
[0009] Preferably, the limiting component has a transmission rod connected above the limiting block, and the transmission rod is slidably connected to the first rotating shaft. One end of the transmission rod located inside the mounting frame is connected to a limiting rod via a turntable, and the limiting rod is slidably connected to the internal gear. The limiting rod is located inside the external gear and connected to a limiting cone. The limiting cone fits against a limiting plate, and the limiting plate is rotatably connected to the internal gear.
[0010] Preferably, the bottom of the lifting frame is equipped with two sets of self-locking telescopic rods, and the two sets of self-locking telescopic rods are respectively in contact with the sliding rod and the toothed plate.
[0011] Preferably, the sliding frame is provided in multiple sets, and the multiple sets of sliding frames are connected by connecting buckles. A pump and a water tank are installed on the top of the mounting frame, and water tanks of different heights are connected to the pump through water pipes.
[0012] Preferably, the inner wall of the sliding rod is connected to a connecting rod, and the connecting rod is slidably connected to the conveyor plate.
[0013] Preferably, the sliding rod has sliding protrusions on both sides, and a first spring is connected above the sliding protrusions, and the other end of the first spring is connected to the inner protrusion of the sliding frame.
[0014] Preferably, the mounting frame is connected to a second spring on one side of the limiting block, and the other end of the second spring is connected to the limiting block, and the guide rod passes through the hole formed in the center of the second spring.
[0015] Preferably, torsion springs are connected to both sides of the limiting plate, and the other end of the torsion springs is connected to the internal gear.
[0016] Compared with the prior art, the beneficial effects of the present invention are:
[0017] 1. This invention can drive the sliding rod to move vertically by activating the self-locking telescopic rod under the lifting frame. The vertical movement of the sliding rod drives the transmission plate to move and push the limiting block to move. The movement of the limiting block can fix the rotating shaft of the roller, thereby simultaneously fixing the installation frame at different heights, reducing the occurrence of the installation frame sliding due to the influence of the extraction pump, and improving the stability of the geothermal energy extraction process.
[0018] 2. The horizontal movement of the limiting block of the present invention will drive the transmission rod to move. The movement of the transmission rod will drive the limiting plate to rotate and fit against the inner inclined protrusion of the external gear. Then, the self-locking telescopic rod above the tooth plate will be activated to make the tooth plate move vertically. The vertical movement of the tooth plate will drive the external gear to rotate. The rotation of the external gear will drive the rotating ring to move. The movement of the rotating ring will stretch the bent water pipe to reduce the bending point of the water pipe, thereby improving the water conveyance efficiency of the water pipe. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the main structure of the present invention;
[0020] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0021] Figure 3 This is a front view of the present invention.
[0022] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B;
[0023] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of the structure at point C;
[0024] Figure 6 This is a schematic diagram of the top surface structure of the present invention;
[0025] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point D;
[0026] Figure 8 This is a side view of the present invention;
[0027] Figure 9 This is a schematic diagram of the limiting component structure of the present invention;
[0028] Figure 10 This is a schematic diagram of the internal structure of the external gear of the present invention;
[0029] Figure 11 This is a schematic diagram of the internal structure of the sliding frame of the present invention.
[0030] In the diagram: 1. Movable seat; 2. Lifting frame; 3. Sliding frame; 4. Sliding rod; 5. Connecting rod; 6. Transmission plate; 7. Mounting frame; 8. Roller; 9. Guide rod; 10. Limiting block; 11. Transmission assembly; 111. First rotating shaft; 112. External gear; 113. Internal gear; 114. Threaded rod; 115. Square frame; 116. Adjusting rod; 117. Rotating ring; 118. Gear plate; 12. Limiting assembly; 121. Transmission rod; 122. Limiting rod; 123. Limiting cone; 124. Limiting plate. Detailed Implementation
[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0032] Please see Figures 1-11 This invention provides a technical solution: a separation-type deep extraction and utilization device based on coal mine geothermal energy, comprising a mobile base 1, a lifting frame 2 mounted above the mobile base 1, a sliding frame 3 disposed below the lifting frame 2, a sliding rod 4 slidably connected to the inner side of the sliding frame 3, connecting rods 5 hinged to both sides of the sliding rod 4, and a transmission plate 6 hinged to the other end of the connecting rod 5, the transmission plate 6 being slidably connected to the sliding frame 3, an installation frame 7 disposed below the lifting frame 2, the installation frame 7 being connected to the rope of the electric hoist of the lifting frame 2, and rollers 8 mounted on the outer side of the installation frame 7, the rollers 8 being connected to the sliding frame 3. The outer wall is attached to the frame. A guide rod 9 is fixedly connected to the outside of the frame 7. The guide rod 9 is slidably connected to the limit block 10, and the limit block 10 is attached to the transmission plate 6. By activating the self-locking telescopic rod below the lifting frame 2, the sliding rod 4 can be pushed to move vertically. The vertical movement of the sliding rod 4 drives the transmission plate 6 to move and push the limit block 10 to move. The movement of the limit block 10 can fix the rotating shaft of the roller 8, thereby fixing the frame 7 at different heights at the same time, reducing the sliding of the frame 7 due to the influence of the extraction pump, and improving the stability of the geothermal energy extraction process.
[0033] Transmission component 11 is disposed inside the mounting frame 7, and limiting component 12 is disposed inside the mounting frame 7.
[0034] In one embodiment of the present invention, the transmission assembly 11 has an external gear 112 disposed inside the mounting frame 7, and the external gear 112 is connected to the mounting frame 7 through a hollow bearing seat. The mounting frame 7 is rotatably connected to a first rotating shaft 111 through the bearing seat. An internal gear 113 is fixedly sleeved at the middle section of the first rotating shaft 111. A threaded rod 114 is also rotatably connected to the inside of the mounting frame 7 through the bearing seat, and the threaded rod 114 is connected to the first rotating shaft 111 through a bevel gear set. A square frame 115 is connected to the inside of the mounting frame 7. An adjusting rod 116 is slidably connected to the inside of the square frame 115, and the adjusting rod 116 is threadedly connected to the threaded rod 114. A rotating ring 117 is rotatably connected to the bottom end of the adjusting rod 116. A toothed plate 118 is slidably connected to the outside of the sliding frame 3, and the toothed plate 118 is meshed with the external gear 112.
[0035] In one embodiment of the present invention, the limiting component 12 has a transmission rod 121 connected above the limiting block 10, and the transmission rod 121 is slidably connected to the first rotating shaft 111. One end of the transmission rod 121 located inside the mounting frame 7 is connected to a limiting rod 122 via a turntable, and the limiting rod 122 is slidably connected to the internal gear 113. The limiting rod 122 is located inside the external gear 112 and connected to a limiting cone 123. The limiting cone 123 fits against the limiting plate 124, and the limiting plate 124 is rotatably connected to the internal gear 113. The horizontal movement of the limiting block 10 will drive the transmission rod 121 to move, and the movement of the transmission rod 121 will drive the limiting plate 124 to rotate and fit against the inner inclined protrusion of the external gear 112.
[0036] As one embodiment of the present invention, two sets of self-locking telescopic rods are installed at the bottom of the lifting frame 2, and the two sets of self-locking telescopic rods are respectively attached to the sliding rod 4 and the toothed plate 118. By activating the two sets of self-locking telescopic rods, the sliding rod 4 and the toothed plate 118 can be pushed to move respectively. Multiple sets of sliding frames 3 are provided, and the multiple sets of sliding frames 3 are connected by connecting buckles. A pumping pump and a water tank are installed on the top of the mounting frame 7, and water tanks of different heights are connected to the pumping pump through water pipes. By setting multiple sets of water tanks and pumps of different heights, high-depth groundwater collection can be achieved.
[0037] In one embodiment of the present invention, a connecting rod is connected to the inner wall of the sliding rod 4, and the connecting rod is slidably connected to the communication plate 6. By providing the connecting rod, the communication plate 6 can be limited to avoid the communication plate 6 from moving vertically during horizontal movement, thereby improving the stability of the communication plate 6 during movement. Sliding protrusions are provided on both sides of the sliding rod 4, and a first spring is connected above the sliding protrusions. The other end of the first spring is connected to the inner protrusion of the sliding frame 3. By providing the first protrusion, the sliding rod 4 can quickly return to the initial position after falling, thereby quickly releasing the fixing of the mounting frame 7.
[0038] In one embodiment of the present invention, the mounting frame 7 is connected to a second spring on one side of the limiting block 10, and the other end of the second spring is connected to the limiting block 10. By providing the second spring, the limiting block 10 can be pushed to separate from the rotating shaft of the roller 8. The guide rod 9 passes through the hole formed in the center of the second spring. The guide rod 9 can limit the second spring and reduce the occurrence of deformation and misalignment of the second spring.
[0039] In one embodiment of the present invention, torsion springs are connected to both sides of the limiting plate 124, and the other end of the torsion springs is connected to the internal gear 113. By providing torsion springs, the limiting plate 124 is separated from the external gear 112 when it is not in contact with the limiting cone 123, so that the rotation of the external gear 112 cannot drive the internal gear 113 to rotate.
[0040] Working principle: First, when extracting geothermal energy, multiple sets of sliding frames 3 are assembled and placed into the mine for fixation. The rollers 8 on one side of the installation frame 7 are aligned with the sliding grooves of the sliding frame 3. Then, the lifting frame 2 is activated to lower multiple sets of installation frames 7 into the mine one by one. When the water pipe below the lowest installation frame 7 is inserted into the geothermal energy, the lifting frame 2 is closed to keep the multiple sets of installation frames 7 at the current height. The self-locking telescopic rod below the lifting frame 2 and above the sliding rod 4 is activated. The self-locking telescopic rod pushes the sliding rod 4 downward. Since the sliding rod 4 is hinged to the connecting rod 5, and the connecting rod 5 is hinged to the transmission plate 6 and the transmission plate 6 is slidably connected to the connecting rod, the sliding rod 4 moves downward and drives the transmission plate 6 to move horizontally under the action of the connecting rod 5. The horizontal movement of the transmission plate 6 will push the limiting block 10 to move horizontally. The horizontal movement of the limiting block 10 will fit with the rotating shaft of the roller 8. The roller 8 is fixed by the rubber pad on the curved side of the limiting block 10, thus fixing the height of the installation frame 7.
[0041] Secondly, during the movement of the limiting block 10, it also drives the transmission rod 121 to move. The movement of the transmission rod 121 drives the limiting rod 122 to move, and the movement of the limiting rod 122 drives the limiting cone 123 to move horizontally. Since the inclined surface of the limiting cone 123 is in contact with the limiting plate 124, the limiting cone 123 pushes the limiting plate 124 to rotate during its horizontal movement. The rotation of the limiting plate 124 is in contact with the inner inclined surface protrusion of the external gear 112. Then, the self-locking telescopic rod located above the gear plate 118 is activated. The self-locking telescopic rod pushes the gear plate 118 to move downward. Since the gear plate 118 is meshed with the external gear 112, the vertical movement of the gear plate 118 will drive the external gear 112 to rotate. Since the limiting plate 124 and the external gear 112 are in contact, the self-locking telescopic rod pushes the gear plate 118 to move downward. Since the gear plate 118 is meshed with the external gear 112, the vertical movement of the gear plate 118 will drive the external gear 112 to rotate. The inner inclined surface protrudes and fits, so the rotation of the outer gear 112 will drive the rotation of the inner gear 113. The rotation of the inner gear 113 will drive the rotation of the first rotating shaft 111. Since the first rotating shaft 111 is connected to the threaded rod 114 through the bevel gear set, the rotation of the first rotating shaft 111 will drive the rotation of the threaded rod 114. The rotation of the threaded rod 114, under the influence of the thread, will drive the adjusting rod 116 to move inside the square frame 115. The movement of the adjusting rod 116 will drive the rotating ring 117 to move. The movement of the rotating ring 117 will push the water pipe connected to the extraction pump to move, so that the water pipe will have a larger obtuse angle, reducing the accumulation of water pipe bends, thereby reducing the impact of water pipe bends on water flow. Finally, the extraction pump can be started to complete the extraction of geothermal energy.
[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A separate deep extraction and utilization device based on coal mine geothermal energy, comprising a mobile base (1), characterized in that: A lifting frame (2) is installed above the mobile seat (1), and a sliding frame (3) is provided below the lifting frame (2). A sliding rod (4) is slidably connected to the inner side of the sliding frame (3). A connecting rod (5) is hinged to both sides of the sliding rod (4), and a communication plate (6) is hinged to the other end of the connecting rod (5). The communication plate (6) is slidably connected to the sliding frame (3). An installation frame (7) is also provided below the lifting frame (2), and the installation frame (7) is connected to the rope of the electric hoist of the lifting frame (2). A roller (8) is installed on the outer side of the installation frame (7), and the roller (8) is in contact with the outer wall of the sliding frame (3). A guide rod (9) is fixedly connected to the outer side of the installation frame (7), and the guide rod (9) is slidably connected to a limit block (10), and the limit block (10) is in contact with the communication plate (6). Transmission assembly (11), which is disposed inside the mounting frame (7); Limiting component (12), the limiting component (12) is disposed inside the mounting frame (7); The transmission assembly (11) has an external gear (112) disposed inside the mounting frame (7), and the external gear (112) is connected to the mounting frame (7) through a hollow bearing seat. The mounting frame (7) is rotatably connected to a first rotating shaft (111) through a bearing seat. An internal gear (113) is fixedly sleeved at the middle section of the first rotating shaft (111). The inner side of the mounting frame (7) is also rotatably connected to a threaded rod (114) through a bearing seat, and the threaded rod (114) is connected to a conical... The gear set is connected to the first rotating shaft (111). A square frame (115) is connected to the inner side of the mounting frame (7). An adjusting rod (116) is slidably connected to the inner side of the square frame (115). The adjusting rod (116) is threadedly connected to the threaded rod (114). A rotating ring (117) is rotatably connected to the bottom end of the adjusting rod (116). A toothed plate (118) is slidably connected to the outer side of the sliding frame (3). The toothed plate (118) is meshed with the external gear (112). The limiting component (12) has a transmission rod (121) connected above the limiting block (10), and the transmission rod (121) is slidably connected to the first rotating shaft (111). The transmission rod (121) is located inside the mounting frame (7) and is connected to a limiting rod (122) via a turntable. The limiting rod (122) is slidably connected to the internal gear (113). The limiting rod (122) is located inside the external gear (112) and is connected to a limiting cone (123). The limiting cone (123) fits against the limiting plate (124), and the limiting plate (124) is rotatably connected to the internal gear (113). The bottom of the lifting frame (2) is equipped with two sets of self-locking telescopic rods, and the two sets of self-locking telescopic rods are respectively fitted to the sliding rod (4) and the toothed plate (118).
2. The separation-type deep extraction and utilization device based on coal mine geothermal energy according to claim 1, characterized in that: The sliding frame (3) is provided in multiple sets, and the multiple sets of sliding frames (3) are connected by connecting buckles. The pump and water tank are installed on the top of the mounting frame (7), and the water tanks at different heights are connected to the pump through water pipes.
3. The separation-type deep extraction and utilization device based on coal mine geothermal energy according to claim 2, characterized in that: The inner wall of the sliding rod (4) is connected to a connecting rod, and the connecting rod is slidably connected to the communication plate (6).
4. The separation-type deep extraction and utilization device based on coal mine geothermal energy according to claim 3, characterized in that: The sliding rod (4) has sliding protrusions on both sides, and a first spring is connected above the sliding protrusions. The other end of the first spring is connected to the inner protrusion of the sliding frame (3).
5. A separation-type deep extraction and utilization device based on coal mine geothermal energy according to claim 4, characterized in that: The mounting frame (7) is connected to a second spring on one side of the limiting block (10), and the other end of the second spring is connected to the limiting block (10). The guide rod (9) passes through the hole formed in the center of the second spring.
6. A separation-type deep extraction and utilization device based on coal mine geothermal energy according to claim 5, characterized in that: Both sides of the limiting plate (124) are connected to torsion springs, and the other end of the torsion springs is connected to the internal gear (113).