Device for exploiting hot dry rock geothermal resources and hole drilling and forming method thereof

Abstract

The invention discloses a device for exploiting hot dry rock geothermal resources and a hole drilling and forming method thereof, and relates to the technical field of geothermal resource exploiting. According to the technical scheme, the device comprises a mounting bottom plate, a transmission mechanism is fixedly connected to the upper portion of the mounting bottom plate, a rotating mechanism is fixedly connected to the front end of the transmission mechanism, and a drill rod is arranged on the lower portion of the rotating mechanism; a drill bit is fixedly connected to the bottom of the drill rod, three hoses are fixedly connected to the lower portion of the drill bit, an oscillation shell is fixedly connected to the end, away from the drill bit, of the movable baffle, an oscillation cavity is formed in the oscillation shell, two rectification blocks are fixedly connected to the interior of the oscillation cavity, and an atomization nozzle is fixedly connected to the lower portion of the oscillation cavity. The three hoses are arranged on the lower portion of the drill bit, the lower ends of the hoses are fixedly connected with the oscillation cavity, after input high-pressure cooling liquid enters the oscillation cavity through the hoses, the liquid can be refined into tiny fog drops through the oscillation effect, the fog drops are sprayed out through the atomization nozzle, the coverage range of the cooling liquid can be effectively enlarged, and then the cooling effect of the drill bit is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of geothermal resource exploitation, and in particular to a device for exploiting hot dry rock geothermal resources and a drilling method thereof. Background Art

[0002] Device for exploiting hot dry rock geothermal resources Background technology is mainly based on the unique advantages and wide distribution of hot dry rock geothermal resources. Hot dry rock refers to rock mass buried more than 3,000 meters below the earth's surface, containing no or little fluid, and with a temperature above 180°C. It has the characteristics of huge reserves, wide distribution, and long availability. Its thermal energy mainly comes from heat conduction and magma activity deep in the earth. It is a clean, efficient, and sustainable energy resource. With the increase in global demand for clean energy, the development and utilization of hot dry rock geothermal resources has received increasing attention. The exploitation of hot dry rock geothermal resources not only helps to reduce greenhouse gas emissions, but also provides a stable and reliable energy supply to meet the energy needs of multiple fields. Therefore, the development of efficient and environmentally friendly exploitation equipment is of great significance to promoting the widespread application of hot dry rock geothermal resources.

[0003] After searching, the Chinese patent number CN110485969A discloses a large-scale metal sealing ring detection device, including a surface casing, a technical casing and a heat exchange tube coaxially arranged from top to bottom, a deep well submersible pump is arranged in the technical casing, and the liquid outlet of the deep well submersible pump is connected with the liquid outlet pipe through a pump pipe flange; the first guide pipe extends from the ground to the bottom of the surface casing, the lower end of the first guide pipe is connected with the second guide pipe through a pressure-bearing steel pipe conversion flange, the second guide pipe passes through the technical casing and extends into the heat exchange tube, the lower end of the second guide pipe is connected with the third guide pipe through a PE pipe conversion joint, the lower end of the third guide pipe is provided with a heat exchanger, and the heat exchanger is arranged at the bottom of the heat exchange tube. The invention is easy to operate, can effectively reduce heat loss in the heat recovery process, improve heat recovery efficiency, and reduce operating costs. Compared with the prior art, the Chinese patent number CN110485969A solves the problem that the existing hot dry rock geothermal energy is mainly mined by drilling and fracturing, but the drilling and fracturing technology is inefficient through the injection of fluid heat transfer and cannot be used on a large scale. Moreover, the mined geothermal energy cannot be directly collected and utilized, and there is a large loss during the collection process.

[0004] However, in actual use of the above device, long-term drilling work will increase the temperature of the drilling tool, and overheating can easily cause damage and wear of the drilling tool and reduce drilling efficiency. Existing equipment mostly cools down by spraying coolant, but the position of the spray nozzle is fixed, and it is difficult to adjust the spraying angle, making it difficult for the coolant to effectively cover the entire drill bit, resulting in poor use effect. Therefore, a device for exploiting hot dry rock geothermal resources and a drilling method thereof are proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that long-term drilling work will increase the temperature of the drilling tool, and overheating will easily cause damage and wear of the drilling tool and reduce drilling efficiency. The existing equipment mostly cools down by spraying coolant, but the position of the spray nozzle is fixed and it is difficult to adjust the spraying angle, making it difficult for the coolant to effectively cover the entire drill bit, resulting in poor use effect. A device for exploiting hot dry rock geothermal resources and a drilling method thereof are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for exploiting hot dry rock geothermal resources and a drilling method thereof, comprising a mounting base plate, a transmission mechanism fixedly connected to the upper portion of the mounting base plate, a rotating mechanism fixedly connected to the front end of the transmission mechanism, a drill rod arranged at the lower portion of the rotating mechanism, a drill bit fixedly connected to the bottom of the drill rod, three hoses fixedly connected to the lower portion of the drill bit, an oscillation housing fixedly connected to one end of the movable baffle away from the drill bit, an oscillation chamber arranged inside the oscillation housing, two rectifier blocks fixedly connected inside the oscillation chamber, an atomizing nozzle fixedly connected to the lower portion of the oscillation chamber, and a control housing arranged inside the atomizing nozzle;

[0008] A third motor is arranged inside the control shell, a fifth gear is arranged at the output end of the third motor, second racks are meshedly connected on both sides of the fifth gear, a movable baffle is fixedly connected to the lower part of the second rack, the movable baffle is slidably connected to the control shell, and an adjusting mechanism is also arranged on one side of the mounting base plate, the atomizing nozzle is driven to rotate by the adjusting mechanism, and after the coolant enters the oscillation chamber through the hose, the oscillation effect of the high-pressure liquid through the oscillation chamber will form tiny droplets that are sprayed from the atomizing nozzle, and the movable baffle is driven to move by the third motor to control the flow rate of droplets sprayed from the atomizing nozzle, the inner hollow of the drill rod can be used for liquid to pass, and three infusion channels are arranged inside the drill bit, and the bottom of the three channels are connected with hoses.

[0009] The above technical solution further includes:

[0010] The adjusting mechanism comprises an adjusting housing fixedly connected to the lower part of the drill bit, a fourth motor is arranged at the lower part of the adjusting housing, and an adjusting component is arranged at the output end of the fourth motor.

[0011] The adjustment component includes a sixth gear arranged at the output end of the fourth motor, the sixth gear is meshedly connected with the seventh gear, the seventh gear is fixedly connected to a rotating shaft close to the side of the adjustment shell, the rotating shaft is rotationally connected to the adjustment shell, the lower part of the rotating shaft is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the oscillation shell.

[0012] The transmission mechanism includes a propulsion guide rail fixedly connected to the upper part of the installation base plate, a propulsion shell is slidably connected to the upper part of the propulsion guide rail, four wheels are rotatably connected inside the propulsion shell, a first motor is arranged inside the propulsion shell, and a transmission assembly is arranged at the output end of the first motor.

[0013] The transmission assembly includes a first gear disposed at the output end of the first motor, the first gear is meshedly connected with a second gear, the second gear is meshedly connected with a first rack, and the first rack is fixedly connected with the propulsion guide rail.

[0014] The rotating mechanism comprises a rotating shell fixedly connected to the front end of the propulsion shell, a second motor is arranged inside the rotating shell, and a rotating assembly is arranged at the output end of the second motor.

[0015] The rotating assembly includes a third gear disposed at the output end of the second motor, the third gear is meshedly connected with a fourth gear, the fourth gear is rotationally connected to the rotating housing, and the fourth gear is fixedly connected to the drill rod.

[0016] The upper part of the rotating shell is fixedly connected with a liquid infusion tube, and the lower end of the liquid infusion tube is rotatably connected to the drill rod.

[0017] A control assembly is arranged at the front end of the mounting base plate, and the control assembly comprises three rangefinders arranged at the front end of the mounting base plate and two electric telescopic rods symmetrically arranged on the upper part of the rangefinders, and a control head is arranged at the output end of the electric telescopic rod.

[0018] A method for using a device for exploiting hot dry rock geothermal resources comprises the following steps:

[0019] Step 1: When using, first fix the installation base plate to the drilling position, then adjust the position of the drill bit and drill rod, and accurately position the drill bit to the preset position;

[0020] Step 2: After the drill bit is positioned, the rotating mechanism is started to drive the drill rod and the drill bit to rotate, and then the transmission mechanism is started to drive the drill rod and the drill bit to move downward to drill the ground;

[0021] Step 3: During the drilling process, coolant is introduced into the drill rod, and the coolant flows into the drill bit through the drill rod, and finally enters the oscillation chamber inside the oscillation housing. The high-pressure liquid oscillates in the oscillation chamber to form tiny droplets, which are then sprayed out through the atomizing nozzle to spray the coolant onto the drill bit;

[0022] Step 4: When spraying the coolant, the spraying flow rate of the coolant is controlled by controlling the third motor in the housing, and the atomizing nozzle is driven to rotate through the regulating mechanism to adjust the spraying angle of the coolant to cool the drill bit.

[0023] The present invention has the following beneficial effects:

[0024] 1. In the present invention, three hoses are arranged at the lower part of the drill bit, and the lower end of the hose is fixedly connected with an oscillation chamber. After the input high-pressure coolant enters the oscillation chamber through the hose, the liquid can be refined into tiny droplets through the oscillation effect. The droplets are sprayed out through the atomizing nozzle, which can effectively increase the coverage of the coolant, thereby improving the cooling effect of the drill bit. In addition, an adjusting mechanism is also arranged on one side of the atomizing nozzle, and the atomizing nozzle can be driven to rotate by the adjusting mechanism, so as to adjust the spraying angle of the atomizing nozzle, further increase the spraying range of the coolant, and achieve the purpose of no cooling dead angle. In addition, the movable baffles on both sides are driven to move by the third motor, and the flow of coolant passing through the atomizing nozzle can be controlled, while ensuring the cooling effect, effectively avoiding waste and reducing the operating cost.

[0025] 2. In the present invention, after the positioning of the device is completed, the drill rod and the drill bit can be driven to rotate through the rotating mechanism, and then the drill rod and the drill bit can be controlled to move downward through the transmission mechanism. By controlling the drill rod and the drill bit to move downward, the ground can be drilled. During the continuous downward movement of the drill rod, the three rangefinders arranged at the front end of the mounting base plate can detect the displacement of the drill rod in real time. When the drill rod deviates from the preset drilling trajectory, the electric telescopic rod can be started accordingly, and the control head can be driven to move by the electric telescopic rod, thereby pushing the drill rod to move to the preset position. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a device for exploiting hot dry rock geothermal resources and a drilling method thereof proposed by the present invention;

[0027] Figure 2 It is a schematic diagram of the first internal structure of the propulsion housing in the present invention;

[0028] Figure 3 It is a schematic diagram of the second internal structure of the propulsion housing in the present invention;

[0029] Figure 4 It is a schematic diagram of the internal structure of the rotating shell in the present invention;

[0030] Figure 5 It is a schematic diagram of the control component structure in the present invention;

[0031] Figure 6 It is a schematic diagram of the internal structure of the drill bit in the present invention;

[0032] Figure 7 It is a schematic diagram of the internal structure of the oscillation housing in the present invention;

[0033] Figure 8 It is a schematic diagram of the internal structure of the control housing in the present invention;

[0034] Fig. 9 It is a schematic diagram of the structure of the regulating mechanism in the present invention.

[0035] In the figure: 1. mounting base plate; 2. advancing guide rail; 3. advancing housing; 4. rotating housing; 5. infusion tube; 6. drill rod; 7. drill bit; 8. electric telescopic rod; 9. rotating wheel; 10. first motor; 11. first gear; 12. second gear; 13. first rack; 14. second motor; 15. third gear; 16. fourth gear; 17. rangefinder; 18. control head; 19. oscillation housing; 20. hose; 21. oscillation chamber; 22. rectifier block; 23. atomizing nozzle; 24. control housing; 25. adjusting housing; 26. connecting plate; 27. third motor; 28. fifth gear; 29. ​​second rack; 30. movable baffle; 31. fourth motor; 32. sixth gear; 33. seventh gear; 34. rotating shaft. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] like Figure 1-Figure 9 As shown, a device for exploiting hot dry rock geothermal resources and a drilling method thereof include an installation base plate 1, a transmission mechanism is fixedly connected to the upper part of the installation base plate 1, a rotating mechanism is fixedly connected to the front end of the transmission mechanism, a drill rod 6 is arranged at the lower part of the rotating mechanism, a drill bit 7 is fixedly connected to the bottom of the drill rod 6, three hoses 20 are fixedly connected to the lower part of the drill bit 7, an end of a movable baffle 30 away from the drill bit 7 is fixedly connected to an oscillation shell 19, an oscillation chamber 21 is arranged inside the oscillation shell 19, two rectifier blocks 22 are fixedly connected inside the oscillation chamber 21, an atomizing nozzle 23 is fixedly connected to the lower part of the oscillation chamber 21, and a control shell 24 is arranged inside the atomizing nozzle 23.

[0039] A third motor 27 is arranged inside the control housing 24, and a fifth gear 28 is arranged at the output end of the third motor 27. Second racks 29 are meshedly connected on both sides of the fifth gear 28. A movable baffle 30 is fixedly connected to the lower part of the second rack 29. The movable baffle 30 is slidably connected to the control housing 24. An adjusting mechanism is also arranged on one side of the mounting base plate 1. The atomizing nozzle 23 is driven to rotate by the adjusting mechanism. After the coolant enters the oscillation chamber 21 through the hose 20, the oscillation effect generated by the high-pressure liquid through the oscillation chamber 21 will form tiny droplets that are sprayed from the atomizing nozzle 23. The movable baffle 30 is driven to move by the third motor 27 to control the flow rate of droplets sprayed from the atomizing nozzle 23. The inside of the drill rod 6 is hollow for liquid to pass through. Three infusion channels are arranged inside the drill bit 7, and the bottom of the three channels are connected to the hose 20.

[0040] The adjusting mechanism includes an adjusting shell 25 fixedly connected to the lower part of the drill bit 7, a fourth motor 31 is arranged at the lower part of the adjusting shell 25, an adjusting component is arranged at the output end of the fourth motor 31, the adjusting component includes a sixth gear 32 arranged at the output end of the fourth motor 31, the sixth gear 32 is meshingly connected with the seventh gear 33, the seventh gear 33 is fixedly connected to a rotating shaft 34 close to the side of the adjusting shell 25, the rotating shaft 34 is rotationally connected to the adjusting shell 25, a connecting plate 26 is fixedly connected to the lower part of the rotating shaft 34, and the connecting plate 26 is fixedly connected to the oscillation shell 19.

[0041] In this embodiment, three hoses 20 are arranged at the lower part of the drill bit 7, and the lower end of the hose 20 is fixedly connected to the oscillation chamber 21. The coolant is input from the infusion tube 5 and enters the drill rod 6, passes through the drill rod 6 and falls into the pipeline arranged in the drill bit 7, and then enters the hose 20 arranged at the lower part, and flows into the oscillation chamber 21 arranged inside the oscillation shell 19 through the hose 20. The high-speed and high-pressure coolant is refined into smaller droplets through the oscillation effect generated by the oscillation chamber 21, which effectively improves the atomization effect. The droplets are sprayed out through the atomizing nozzle 23 to effectively increase the coverage of the coolant, thereby improving the cooling effect of the drill bit 7.

[0042] An adjusting mechanism is also provided on one side of the atomizing nozzle 23. By starting the fourth motor 31, the sixth gear 32 can be driven to rotate. The rotation of the sixth gear 32 can drive the meshingly connected seventh gear 33 to rotate. The rotation of the seventh gear 33 drives the fixedly connected rotating shaft 34 to rotate. The rotation of the rotating shaft 34 can drive the connecting plate 26 to rotate as well, thereby driving the oscillation housing 19 and the atomizing nozzle 23 to rotate. The spraying angle is adjusted by the rotation of the atomizing nozzle 23 to further improve the spraying range of the coolant so that the coolant covers no dead angles. Moreover, the fifth gear 28 is driven to rotate by the third motor 27. The rotation of the fifth gear 28 drives the second racks 29 meshingly connected on both sides to move. The movement of the second rack 29 drives the movable baffle 30 fixedly connected at the lower part to move. The flow of coolant passing through the atomizing nozzle 23 can also be controlled. While ensuring the cooling effect, waste is effectively avoided and the operating cost is reduced.

[0043] Embodiment 2

[0044] like Figure 1-Figure 9 As shown, the transmission mechanism includes a propulsion guide rail 2 fixedly connected to the upper part of the mounting base plate 1, a propulsion shell 3 is slidably connected to the upper part of the propulsion guide rail 2, four rotating wheels 9 are rotatably connected inside the propulsion shell 3, a first motor 10 is arranged inside the propulsion shell 3, a transmission assembly is arranged at the output end of the first motor 10, the transmission assembly includes a first gear 11 arranged at the output end of the first motor 10, the first gear 11 is meshingly connected to the second gear 12, the second gear 12 is meshingly connected to the first rack 13, and the first rack 13 is fixedly connected to the propulsion guide rail 2.

[0045] The rotating mechanism includes a rotating shell 4 fixedly connected to the front end of the propulsion shell 3, a second motor 14 is arranged inside the rotating shell 4, a rotating assembly is arranged at the output end of the second motor 14, the rotating assembly includes a third gear 15 arranged at the output end of the second motor 14, the third gear 15 is meshedly connected with a fourth gear 16, the fourth gear 16 is rotationally connected to the rotating shell 4, the fourth gear 16 is fixedly connected to the drill rod 6, an infusion tube 5 is fixedly connected to the upper part of the rotating shell 4, and the lower end of the infusion tube 5 is rotationally connected to the drill rod 6.

[0046] A control assembly is arranged at the front end of the mounting base plate 1, and the control assembly includes three distance meters 17 arranged at the front end of the mounting base plate 1 and two electric telescopic rods 8 symmetrically arranged on the upper part of the distance meters 17, and a control head 18 is arranged at the output end of the electric telescopic rod 8.

[0047] In this embodiment, after the device is positioned, starting the second motor 14 can drive the third gear 15 to rotate, and the rotation of the third gear 15 can drive the meshing fourth gear 16 to rotate, and the rotation of the fourth gear 16 can drive the drill rod 6 and the drill bit 7 to rotate, and then start the first motor 10, and the first motor 10 drives the first gear 11 to rotate, and the rotation of the first gear 11 drives the meshing second gear 12 to rotate, and the rotation of the second gear 12 will move along the meshing first rack 13, and the movement of the second gear 12 can drive the propulsion housing 3 to move downward along the slidingly connected propulsion guide rail 2, thereby driving the drill rod 6 and the drill bit 7 to move downward, and the rotating drill bit 7 moves downward to drill through the ground to drill a hole, and in the process of the drill rod 6 continuously moving downward, the three rangefinders 17 arranged at the front end of the mounting base plate 1 can detect the displacement of the drill rod 6 in real time, and when the drill rod 6 deviates from the preset drilling trajectory, the electric telescopic rod 8 can be started accordingly, and the control head 18 can be driven to move by the electric telescopic rod 8, thereby pushing the drill rod 6 to move to the preset position.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for exploiting hot dry rock geothermal resources, comprising a mounting base plate (1), characterized in that: The upper part of the mounting base plate (1) is fixedly connected with a transmission mechanism, the front end of the transmission mechanism is fixedly connected with a rotation mechanism, the lower part of the rotation mechanism is provided with a drill rod (6), the bottom of the drill rod (6) is fixedly connected with a drill bit (7), the lower part of the drill bit (7) is fixedly connected with three hoses (20), the end of the hose (20) away from the drill bit (7) is fixedly connected with an oscillation housing (19), an oscillation chamber (21) is provided inside the oscillation housing (19), two rectifier blocks (22) are fixedly connected inside the oscillation chamber (21), an atomizing nozzle (23) is fixedly connected to the lower part of the oscillation chamber (21), and a control housing (24) is provided inside the atomizing nozzle (23); A third motor (27) is arranged inside the control housing (24), a fifth gear (28) is arranged at the output end of the third motor (27), second racks (29) are meshedly connected on both sides of the fifth gear (28), a movable baffle (30) is fixedly connected to the lower part of the second rack (29), the movable baffle (30) is slidably connected to the control housing (24), and an adjustment mechanism is also arranged on one side of the mounting base plate (1), the atomizing nozzle (23) is driven to rotate by the adjustment mechanism, and after the coolant enters the oscillation chamber (21) through the hose (20), the oscillation effect generated by the high-pressure liquid passing through the oscillation chamber (21) will form tiny droplets that are sprayed out from the atomizing nozzle (23), and the movable baffle (30) is driven to move by the third motor (27) to control the flow rate of the droplets sprayed out of the atomizing nozzle (23).

2. The device for exploiting hot dry rock geothermal resources according to claim 1, characterized in that: The adjustment mechanism comprises an adjustment housing (25) fixedly connected to the lower part of the drill rod (6); a fourth motor (31) is arranged at the lower part of the adjustment housing (25); and an adjustment component is arranged at the output end of the fourth motor (31).

3. The device for exploiting hot dry rock geothermal resources according to claim 2, characterized in that: The adjustment component comprises a sixth gear (32) arranged at the output end of the fourth motor (31), the sixth gear (32) being meshedly connected with a seventh gear (33), the seventh gear (33) being fixedly connected with a rotating shaft (34) on a side close to the adjustment housing (25), the rotating shaft (34) being rotationally connected to the adjustment housing (25), the lower part of the rotating shaft (34) being fixedly connected with a connecting plate (26), and the connecting plate (26) being fixedly connected to the oscillation housing (19).

4. The device for exploiting hot dry rock geothermal resources according to claim 1, characterized in that: The transmission mechanism comprises a propulsion guide rail (2) fixedly connected to the upper part of the mounting base plate (1); a propulsion housing (3) is slidably connected to the upper part of the propulsion guide rail (2); four rotating wheels (9) are rotatably connected inside the propulsion housing (3); a first motor (10) is arranged inside the propulsion housing (3); and a transmission assembly is arranged at the output end of the first motor (10).

5. The device for exploiting hot dry rock geothermal resources according to claim 4, characterized in that: The transmission assembly comprises a first gear (11) arranged at the output end of a first motor (10), the first gear (11) being meshedly connected with a second gear (12), the second gear (12) being meshedly connected with a first rack (13), and the first rack (13) being fixedly connected with a propulsion guide rail (2).

6. The device for exploiting hot dry rock geothermal resources according to claim 1, characterized in that: The rotating mechanism comprises a rotating shell (4) fixedly connected to the front end of the propulsion shell (3), a second motor (14) is arranged inside the rotating shell (4), and a rotating assembly is arranged at the output end of the second motor (14).

7. The device for exploiting hot dry rock geothermal resources according to claim 6, characterized in that: The rotating assembly comprises a third gear (15) arranged at the output end of the second motor (14); the third gear (15) is meshingly connected with a fourth gear (16); the fourth gear (16) is rotationally connected to the rotating housing (4); and the fourth gear (16) is fixedly connected to the drill rod (6).

8. The device for exploiting hot dry rock geothermal resources according to claim 6, characterized in that: A liquid infusion tube (5) is fixedly connected to the upper portion of the rotating shell (4), and the lower end of the liquid infusion tube (5) is rotationally connected to the drill rod (6).

9. The device for exploiting hot dry rock geothermal resources according to claim 1, characterized in that: A control component is arranged at the front end of the mounting base plate (1), the control component comprising three distance meters (17) arranged at the front end of the mounting base plate (1) and two electric telescopic rods (8) symmetrically arranged above the distance meters (17), and a control head (18) is arranged at the output end of the electric telescopic rods (8).

10. The method for using the device for exploiting hot dry rock geothermal resources according to claim 1, characterized in that: The following steps are involved: Step 1: When in use, first fix the mounting base plate (1) to the drilling position, then adjust the positions of the drill rod (6) and the drill bit (7), and accurately position the drill rod (6) to a preset position; Step 2: After the drill rod (6) is positioned, the rotating mechanism is started to drive the drill rod (6) and the drill bit (7) to rotate, and then the transmission mechanism is started to drive the drill rod (6) and the drill bit (7) to move downward to drill the ground; Step 3: During the drilling process, coolant is introduced into the hose (20), and the coolant flows into the oscillation chamber (21) through the hose (20), and finally enters the oscillation chamber (21) inside the oscillation housing (19), and the high-pressure liquid generates an oscillation effect in the oscillation chamber (21) to form tiny droplets, which are then sprayed out through the atomizing nozzle (23) to spray the coolant onto the drill bit (7); Step 4: When spraying the coolant, the spraying flow rate of the coolant is controlled by the third motor (27) in the control housing (24), and the atomizing nozzle (23) is driven to rotate through the regulating mechanism to adjust the spraying angle of the coolant to cool the drill bit (7).

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