A drilling device for open-pit mine slopes containing confined aquifers

Abstract

This invention discloses a drilling device for open-pit mine slopes containing confined aquifers. Symmetrical drive support mechanisms are provided below the base plate. Fixed hinge seats are located on the base plate and the lower side of the adjusting plate. A hinged support arm is provided between the fixed hinge seats. Multiple hydraulic rods are hinged between the lower side of the hinged support arm and the base plate. A hinged cylinder is provided between the upper side of the hinged support arm and the adjusting plate. A gyroscope sensor is located at the center of the lower part of the adjusting plate. A sliding plate is provided above the adjusting plate via a sliding mechanism, and a drilling drive mechanism is located on the sliding plate. This invention, by setting up hinged support arms in conjunction with multiple sets of cylinders, can meet drilling requirements at different angles and also adjust the drilling height, greatly increasing the adjustable range and improving applicability. Furthermore, the drilling drive mechanism can immediately extract the confined water after drilling through the hollow drill rod and the through-connected rotating positioning head, avoiding interference with subsequent injection of sealing grout.

Description

Technical Field

[0001] This invention relates to the field of confined aquifer treatment technology for mine slopes, and particularly to a drilling device for open-pit mine slopes containing confined aquifers. Background Technology

[0002] Open-pit mines require digging a large pit to extract mineral resources. During mining, the pressure generated by mine collapse can cause surrounding groundwater to rush into the mine, thus forming confined groundwater. Confined groundwater poses significant safety hazards and economic losses to mine production, making the prevention and control of confined groundwater on slopes extremely important.

[0003] Currently, the method for depressurizing confined water is to use drilling for waterproofing. However, traditional equipment simply uses ordinary drilling equipment to drill holes. During drilling, confined water seeps out from the borehole. After depressurization, a separate machine is needed to inject sealing grout to seal the hole. During this process, confined water continues to overflow, affecting the solidification of the sealing grout. Furthermore, traditional drilling equipment cannot adjust the drilling direction, and drilling on mine slopes often requires drilling in different directions to release and seal the confined water, resulting in poor applicability. Therefore, this invention proposes a drilling device for open-pit mine slopes containing confined water layers to solve the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a drilling device for open-pit mine slopes containing confined aquifers. This drilling device, through the use of articulated support arms and multiple sets of hydraulic cylinders, can achieve drilling at different angles and adjust the drilling height, greatly increasing the adjustable range and improving applicability. It solves the problems existing in traditional drilling equipment. Furthermore, through the drilling drive mechanism, the confined water can be extracted immediately after drilling through the hollow drill rod and the through-connected rotating positioning head, preventing confined water from overflowing and causing excessive water in the hole, which would affect the subsequent injection of sealing grout.

[0005] To achieve the objectives of this invention, the invention is implemented through the following technical solution: A drilling device for open-pit mine slopes containing confined aquifers, comprising a base plate, a drive support mechanism, a hinge adjustment mechanism, an adjustment plate, a sliding mechanism, a sliding plate, and a drilling drive mechanism. The drive support mechanism is symmetrically arranged below the base plate. The hinge adjustment mechanism includes a fixed hinge seat, a hinge support arm, a multi-segment hydraulic rod, a hinge cylinder, and a gyroscope sensor. Fixed hinge seats are symmetrically fixedly arranged on the base plate and the underside of the adjustment plate. Hinge support arms are hinged between the fixed hinge seats. Multiple hydraulic rods are hinged between the lower side of the arm and the base plate. An embedded groove is provided in the middle section of the lower side of the hinged support arm. One end of the multiple hydraulic rods is hinged to the hinge seat between the base plate and the other end extends into the embedded groove for rotational hinge. A hinge cylinder is provided between the upper side of the hinged support arm and the adjustment plate. A through groove is provided in the front section of the hinged support arm. One end of the hinge cylinder is rotatably hinged in the through groove and the other end is hinged to the hinge seat below the adjustment plate. A gyroscope sensor is provided in the center of the lower part of the adjustment plate. A sliding plate is provided above the adjustment plate through a sliding mechanism. A drilling drive mechanism is provided on the sliding plate.

[0006] Further improvements are made in that: the drive support mechanism includes a drive box, a servo motor, a control circuit board, drive wheels, rotating support arms, lifting cylinders, and a support plate. The drive box is located below the base plate, and servo motors are symmetrically arranged in the drive box. The output end of the servo motor extends through the drive box to the outside and is equipped with drive wheels. The four sets of drive wheels can be controlled independently, increasing the flexibility of the device's movement. The drive box also contains a control circuit board. Rotating support arms are symmetrically arranged at the four corners below the base plate, and a support plate is installed below the end of each rotating support arm via a lifting cylinder.

[0007] Further improvements include: the sliding mechanism includes a guide rail, a sliding seat, a fixed seat, a feed cylinder, and a limiting mechanism. The guide rail is symmetrically arranged above the adjusting plate, and the sliding seat is arranged on the guide rail. The sliding seat is fixedly connected to the lower side of the slide plate. The fixed seat is arranged on the adjusting plate and the lower side of the slide plate. The feed cylinder is arranged between the fixed seats. The feed cylinder drives the slide plate and the drilling drive mechanism above it to move for drilling feed. A limiting mechanism is also provided between the slide plate and the adjusting plate.

[0008] A further improvement is that the limiting mechanism includes a fixed plate, a touch seat, and a touch sensor. Fixed plates are symmetrically arranged on the front and rear sides of the adjusting plate, and a touch seat is arranged on the underside of the slide plate. A touch sensor is arranged on the side of the fixed plate facing the touch seat, which is used to control the start and stop of the feed cylinder, thereby limiting the movement distance of the slide plate.

[0009] A further improvement is made in that: the drilling drive mechanism includes a fixed frame, a rotary positioning head, a drill rod positioning groove, a drilling motor, a forward and reverse water pump, a connecting pipe, and a rotary connecting seat. The fixed frame is provided on the slide plate, and the rotary positioning head is provided on the front side of the fixed frame. The rotary positioning head and the fixed frame are rotatably connected by a bearing. The drill rod positioning groove is provided on the front side of the rotary positioning head and is connected to an external hollow drill rod. The drilling motor is provided on the rear side of the fixed frame. The connecting pipe is provided on the upper side of the fixed frame through the forward and reverse water pump. The connecting pipe is rotatably and sealingly connected to the rotary positioning head through the rotary connecting seat. The inner side of the rotary positioning head is a connecting structure that communicates with the rotary connecting seat.

[0010] Further improvements include: a positioning frame is provided on the front side of the adjustment plate, a positioning arc groove is provided on the positioning frame, and rotating guide wheels are symmetrically embedded in the positioning arc groove for supporting and positioning the drill rod; an avoidance groove is provided on the lower side of the positioning frame, the avoidance groove is higher than the height of the slide plate, and the output end of the drilling motor meshes with the gear on the rear side of the rotating positioning head for transmission.

[0011] A further improvement is that a hydraulic oil tank is provided on the upper side of the base plate, and a control platform is provided on one side of the base plate, with a seat and a control panel provided on the control platform.

[0012] The beneficial effects of this invention are as follows: By setting a hinged support arm in conjunction with multiple sets of hydraulic cylinders, this invention can meet the drilling requirements at different angles, and can also adjust the drilling height, greatly increasing the adjustable range and improving applicability. It solves the problems existing in traditional drilling equipment. At the same time, through the drilling drive mechanism, pressurized water can be extracted immediately after drilling through the hollow drill rod and the through-connected rotating positioning head, avoiding the overflow of pressurized water and causing excessive water in the hole to affect the subsequent injection of sealing grout. After pumping out the water, the sealing grout can be injected into the borehole for sealing by a forward and reverse water pump, which greatly improves the functionality of the device. Attached Figure Description

[0013] Figure 1 This is a side view of the present invention.

[0014] Figure 2 This is a side sectional view of the present invention.

[0015] Figure 3 This is a front view of the present invention.

[0016] Figure 4 This is a schematic diagram of the vertical drilling state of the present invention.

[0017] The components include: 1. Base plate; 2. Adjustment plate; 3. Slide plate; 4. Fixed hinge seat; 5. Hinge support arm; 6. Multi-segment hydraulic rod; 7. Hinge cylinder; 8. Gyroscope sensor; 9. Drive box; 10. Servo motor; 11. Control circuit board; 12. Drive wheel; 13. Rotary support arm; 14. Lifting cylinder; 15. Support plate; 16. Guide rail; 17. Sliding seat; 18. Fixed seat; 19. Feed cylinder; 20. Fixed plate; 21. Touch seat; 22. Touch sensor; 23. Fixed frame; 24. Rotary positioning head; 25. Drill rod positioning groove; 26. Drilling motor; 27. Forward and reverse water pump; 28. Connecting pipe; 29. ​​Rotary connecting seat; 30. Positioning frame; 31. Positioning arc groove; 32. Rotating guide wheel; 33. Clearance groove; 34. Hydraulic oil tank; 35. Control platform; 36. Seat; 37. Control panel. Detailed Implementation

[0018] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0019] With the rapid development of my country's economy, the energy industry, including coal, has also experienced rapid growth. However, this has brought about an increasing number of problems, such as coal mine safety, mine drainage, and environmental protection issues. Open-pit mines, in particular, often suffer from excessive groundwater due to geological limitations, posing significant safety and economic risks to mine production.

[0020] Open-pit mines require digging a large pit to extract mineral resources. During the mining process, the pressure generated by the collapse of the mine causes the surrounding groundwater to rush into the mine, thus forming confined groundwater.

[0021] Confined groundwater poses significant safety hazards and economic losses to mining operations, specifically in the following ways:

[0022] 1. Slope instability: The stability of open-pit mine slopes directly affects the safety and efficiency of mining; while groundwater can cause slopes to soften, decrease in stability, and lead to accidents such as instability, landslides, or even collapses.

[0023] 2. Natural gas outburst: During open-pit coal mining, natural gas contained in the underground pressurized water may emerge along with the water. When the concentration of natural gas exceeds a certain value, an explosion may occur, threatening personnel and equipment.

[0024] 3. Reservoir sealing: If there is too much confined groundwater, it will cause reservoir accumulation, and long-term accumulation will have irreversible impacts on the surrounding environment and ecology.

[0025] The method of depressurizing pressurized water involves drilling for waterproofing. However, traditional equipment simply uses a common drilling structure. During drilling, pressurized water will seep out from the borehole. After depressurization, a separate machine is needed to inject sealing grout to seal the hole. During this process, pressurized water will continue to overflow, making the construction site muddy and making it impossible to adjust the drilling direction. Therefore, equipment with different structures is required.

[0026] Based on the above problems, this embodiment provides a drilling device for open-pit mine slopes containing confined aquifers, according to... Figures 1-4 As shown, the equipment includes a base plate 1, a drive support mechanism, a hinge adjustment mechanism, an adjustment plate 2, a sliding mechanism, a sliding plate 3, and a drilling drive mechanism. The drive support mechanism is symmetrically arranged below the base plate 1. The hinge adjustment mechanism includes a fixed hinge seat 4, a hinge support arm 5, a multi-segment hydraulic rod 6, a hinge cylinder 7, and a gyroscope sensor 8. Fixed hinge seats 4 are symmetrically fixed on the base plate 1 and the lower side of the adjustment plate 2. A hinge support arm 5 is hinged between the fixed hinge seats 4. A multi-segment hydraulic rod 6 is hinged between the lower side of the hinge support arm 5 and the base plate 1. An embedded groove is provided in the middle section of the lower side of the hinge support arm. One end of the multi-segment hydraulic rod is connected to the base plate. The hinged seat is hinged, and the other end extends into the inner groove for rotational hinge. A hinged cylinder 7 is provided between the upper side of the hinged support arm 5 and the adjusting plate 2. A through groove is provided at the front section of the hinged support arm. One end of the hinged cylinder is rotated and hinged in the through groove, and the other end is hinged to the hinged seat below the adjusting plate. A gyroscope sensor 8 is provided at the center of the lower part of the adjusting plate 2, which can be used to detect the levelness of the adjusting plate and control the multi-segment hydraulic rod and the hinged cylinder to work together to adjust the level or tilt angle. A sliding plate 3 is provided above the adjusting plate 2 through a sliding mechanism. A drilling drive mechanism is provided on the sliding plate 3, which is connected to the external hollow drill rod and drives it to rotate and feed the drill hole.

[0027] The drive support mechanism includes a drive box 9, a servo motor 10, a control circuit board 11, drive wheels 12, rotating support arms 13, a lifting cylinder 14, and a support plate 15. The drive box 9 is located below the base plate 1. The servo motors 10 are symmetrically arranged in the drive box 9. The output end of the servo motor 10 extends through the drive box 9 to the outside where the drive wheels 12 are located. The four sets of drive wheels can be controlled independently, increasing the flexibility of the device's movement. The drive box 9 also contains a control circuit board 11. The rotating support arms 13 are symmetrically arranged at the four corners below the base plate 1. The support plate 15 is located below the end of the rotating support arms 13 via the lifting cylinder 14, which is used to increase the stability of the device.

[0028] The sliding mechanism includes a guide rail 16, a sliding seat 17, a fixed seat 18, a feed cylinder 19, and a limiting mechanism. The guide rail 16 is symmetrically arranged above the adjusting plate 2, and the sliding seat 17 is arranged on the guide rail 16. The sliding seat 17 is fixedly connected to the lower side of the slide plate 3. The fixed seat 18 is arranged on the upper side of the adjusting plate 2 and the lower side of the slide plate 3. The feed cylinder 19 is arranged between the fixed seats 18. The feed cylinder drives the slide plate and the drilling drive mechanism above to move to perform drilling feed. A limiting mechanism is also arranged between the slide plate 3 and the adjusting plate 2.

[0029] The limiting mechanism includes a fixed plate 20, a touch seat 21, and a touch sensor 22. The fixed plate 20 is symmetrically arranged on the front and rear sides of the adjusting plate 2, and the touch seat 21 is arranged on the lower side of the slide plate 3. The touch sensor 22 is arranged on the side of the fixed plate 20 facing the touch seat 21, which is used to control the start and stop of the feed cylinder, thereby limiting the movement distance of the slide plate and preventing it from falling off.

[0030] The drilling drive mechanism includes a fixed frame 23, a rotary positioning head 24, a drill rod positioning groove 25, a drilling motor 26, a forward and reverse water pump 27, a connecting pipe 28, and a rotary connecting seat 29. The fixed frame 23 is mounted on the slide plate 3. The rotary positioning head 24 is mounted on the front side of the fixed frame 23. The rotary positioning head and the fixed frame are rotatably connected by a bearing. The drill rod positioning groove 25 is mounted on the front side of the rotary positioning head 24 and is connected to an external hollow drill rod. The drilling motor 26 is mounted on the rear side of the fixed frame 23. The connecting pipe 28 is mounted on the upper side of the fixed frame 23 through the forward and reverse water pump 27. The connecting pipe 28 is rotatably and sealingly connected to the rotary positioning head 24 through the rotary connecting seat 29. The inner side of the rotary positioning head 24 is a connecting structure that communicates with the rotary connecting seat 29. The forward and reverse water pump extracts pressurized water and can switch directions to inject sealing slurry into the borehole through the hollow drill rod for sealing.

[0031] A positioning frame 30 is provided on the front side of the adjusting plate 2. A positioning arc groove 31 is provided on the positioning frame 30. Rotating guide wheels 32 are symmetrically embedded in the positioning arc groove 31 for supporting and positioning the drill rod. An avoidance groove 33 is provided on the lower side of the positioning frame 30. The avoidance groove 33 is higher than the height of the slide plate 3 to avoid the slide plate from extending out of the adjusting plate. The output end of the drilling motor 26 meshes with the gear on the rear side of the rotating positioning head 24 for transmission.

[0032] A hydraulic oil tank 34 is provided on the upper side of the base plate 1, and a control platform 35 is provided on one side of the base plate 1. A seat 36 and a control panel 37 are provided on the control platform 35.

[0033] When using this drilling equipment for open-pit mine slopes containing confined aquifers, first move the device to the designated position. Then, according to the required drilling angle and height, adjust the angle and level of the articulated support arm and adjusting plate using multi-segment hydraulic rods and articulated cylinders to control different drilling angles. Next, install the hollow drill rod through the drill rod positioning slot in the rotating positioning head and the positioning arc slot on the positioning frame. Then, start the drilling motor, and the feed cylinder drives the slide plate forward to feed the drilling volume. After one drill rod is used, stop the drilling motor, then disconnect the hollow drill rod from the rotating positioning head, and then pull the slide plate back to its original position using the feed cylinder. Then, splice and install another hollow drill rod, and fix it to the drill rod positioning slot and the tail end of the first drill rod. Then, start the drilling motor and feed cylinder again to perform the drilling operation.

[0034] After drilling is completed, the pressurized water is extracted by rotating the forward and reverse water pumps to prevent the pressurized water from overflowing and remaining, which would affect the solidification of the sealing grout. After the pressurized water is extracted, the forward and reverse water pumps are rotated to pump the external sealing grout into the hollow drill rod and inject it into the borehole for sealing, thus completing the pressurized water depressurization drilling and sealing construction.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling device for open-pit mine slopes containing confined aquifers, characterized in that: The system includes a base plate (1), a drive support mechanism, a hinge adjustment mechanism, an adjustment plate (2), a sliding mechanism, a slide plate (3), and a drilling drive mechanism. The drive support mechanism is symmetrically arranged below the base plate (1). The hinge adjustment mechanism includes a fixed hinge seat (4), a hinge support arm (5), a multi-segment hydraulic rod (6), a hinge cylinder (7), and a gyroscope sensor (8). The fixed hinge seat (4) is arranged on the base plate (1) and below the adjustment plate (2). The hinge support arm (5) is arranged between the fixed hinge seats (4). The multi-segment hydraulic rod (6) is hinged between the lower side of the hinge support arm (5) and the base plate (1). The hinge cylinder (7) is arranged between the upper side of the hinge support arm (5) and the adjustment plate (2). The gyroscope sensor (8) is arranged at the center of the lower part of the adjustment plate (2). The slide plate (3) is arranged above the adjustment plate (2) through the sliding mechanism. The drilling drive mechanism is arranged on the slide plate (3). The drive support mechanism includes a drive box (9), a servo motor (10), a control circuit board (11), a drive wheel (12), a rotating support arm (13), a lifting cylinder (14), and a support plate (15). The drive box (9) is located below the base plate (1). The servo motor (10) is symmetrically arranged in the drive box (9). The output end of the servo motor (10) extends through the drive box (9) to the outside and is provided with a drive wheel (12). The control circuit board (11) is also provided in the drive box (9). The rotating support arm (13) is symmetrically arranged at the four corners below the base plate (1). The support plate (15) is provided below the end of the rotating support arm (13) through the lifting cylinder (14). The drilling drive mechanism includes a fixed frame (23), a rotary positioning head (24), a drill rod positioning groove (25), a drilling motor (26), a forward and reverse water pump (27), a connecting pipe (28), and a rotary connecting seat (29). The fixed frame (23) is provided on the slide plate (3). The rotary positioning head (24) is provided on the front side of the fixed frame (23). The drill rod positioning groove (25) is provided on the front side of the rotary positioning head (24). The drilling motor (26) is provided on the rear side of the fixed frame (23). The connecting pipe (28) is provided on the upper side of the fixed frame (23) through the forward and reverse water pump (27). The connecting pipe (28) is rotatably and sealedly connected to the rotary positioning head (24) through the rotary connecting seat (29). The inner side of the rotary positioning head (24) is a connecting structure that is connected to the rotary connecting seat (29). After drilling is completed, the pressurized water is extracted through the hollow drill rod and the rotating positioning head connected by the forward and reverse water pumps. This prevents the pressurized water from overflowing and remaining, which would affect the solidification of the sealing grout. After the pressurized water is extracted, the forward and reverse water pumps are reversed to pump the external sealing grout into the hollow drill rod and inject it into the borehole for sealing, thus completing the pressurized water depressurization drilling and sealing construction.

2. The drilling equipment for open-pit mine slopes containing confined aquifers according to claim 1, characterized in that: The sliding mechanism includes a guide rail (16), a sliding seat (17), a fixed seat (18), a feed cylinder (19), and a limiting mechanism. The guide rail (16) is symmetrically arranged above the adjusting plate (2). The sliding seat (17) is arranged on the guide rail (16). The sliding seat (17) is fixedly connected to the lower side of the slide plate (3). The fixed seat (18) is arranged on the upper side of the adjusting plate (2) and the lower side of the slide plate (3). The feed cylinder (19) is arranged between the fixed seats (18). The limiting mechanism is also arranged between the slide plate (3) and the adjusting plate (2).

3. The drilling equipment for open-pit mine slopes containing confined aquifers according to claim 2, characterized in that: The limiting mechanism includes a fixed plate (20), a touch seat (21) and a touch sensor (22). The fixed plate (20) is symmetrically provided on the front and rear sides of the adjusting plate (2). The touch seat (21) is provided on the lower side of the sliding plate (3). The touch sensor (22) is provided on the side of the fixed plate (20) facing the touch seat (21).

4. The drilling equipment for open-pit mine slopes containing confined aquifers according to claim 1, characterized in that: The front side of the adjustment plate (2) is provided with a positioning frame (30), the positioning frame (30) is provided with a positioning arc groove (31), the positioning arc groove (31) is symmetrically embedded with rotating guide wheels (32), the lower side of the positioning frame (30) is provided with a clearance groove (33), the clearance groove (33) is higher than the height of the slide plate (3), and the output end of the drilling motor (26) meshes with the rear gear of the rotating positioning head (24) for transmission.

5. The drilling equipment for open-pit mine slopes containing confined aquifers according to claim 1, characterized in that: A hydraulic oil tank (34) is provided on the upper side of the base plate (1), and a control platform (35) is provided on one side of the base plate (1). A seat (36) and a control panel (37) are provided on the control platform (35).

Images