Energy-saving type mine drilling and reaming device

Abstract

The invention discloses an energy-saving type mine drilling and reaming device, and belongs to the technical field of energy-saving type mine mechanical equipment, the energy-saving type mine drilling and reaming device comprises a top plate and a plurality of stand columns fixed below the top plate, the energy-saving type mine drilling and reaming device further comprises a lifting plate connected among the stand columns in a sliding mode, a hydraulic cylinder is installed between the top plate and the lifting plate, and a reaming assembly is installed on the lifting plate; an upper cover body is fixed to the lower surface of the lifting plate through a first fixing rod, a spraying assembly is arranged on the upper cover body, a lower cover body is slidably connected to the upper cover body, a dust suction box is fixed to the lower surface of the lifting plate through a second fixing rod, and an air inlet pipe is connected between the dust suction box and the upper cover body; according to the invention, through collaborative design and a self-adaptive adjustment technology, the problems of hole wall instability, frequent energy consumption rise and the like caused by existing spraying dust fall are effectively solved while the reaming dust fall is efficiently controlled, and the dust fall effect, the operation safety, the energy saving property and the operation and maintenance convenience are considered.

Description

Technical Field

[0001] This invention relates to the field of energy-saving mining machinery and equipment technology, specifically to an energy-saving mining drilling and reaming device. Background Technology

[0002] In mining geological exploration and resource extraction projects, borehole reaming is a crucial intermediate process. After drilling is completed in mining exploration, the original borehole needs to be reamed to meet the requirements of subsequent geological sampling, hydrological observation, or resource extraction. This involves increasing the borehole diameter using a reaming device to ensure the efficient deployment of subsequent equipment and processes. During reaming operations, the drill bit blades experience intense cutting friction with the rock strata, generating a large amount of rock cuttings and dust. This dust is dispersed with the drill bit's movement and airflow, creating severe dust pollution. This dust not only pollutes the working environment, reduces visibility, and affects operational safety, but can also be inhaled by operators, potentially leading to occupational health problems such as pneumoconiosis. Furthermore, the dispersed dust adheres to the hydraulic system, electrical components, and drill bit surfaces of the reaming device, accelerating equipment wear and corrosion, shortening service life, and increasing maintenance costs. Therefore, effectively controlling dust pollution during borehole reaming is an essential step in mining reaming operations.

[0003] In existing technologies, dust control in mine borehole enlargement mainly relies on spray dust suppression. Its core is to atomize water through an atomizing device, causing the droplets to collide and combine with dust particles, increasing their weight and causing them to settle, thereby suppressing dust. This method has advantages such as simple structure, low initial investment, and direct dust suppression, and is widely used in mine borehole enlargement operations.

[0004] However, in practical applications, spray dust suppression has many inherent defects, which seriously restrict the efficiency, safety, and energy saving of hole enlargement operations. The specific manifestations are as follows:

[0005] Firstly, decreased borehole wall stability increases the risk of borehole collapse and diameter reduction. During dust suppression with atomized water, some water mist seeps into the borehole, coming into contact with surrounding soft rock layers, fractured zones, or coal and rock with high water content, causing softening of the soil and rock structure and a significant decrease in mechanical strength. Especially in deep wells or loose formations, softened borehole walls are prone to collapse and diameter reduction, leading to equipment failures such as stuck drill bits and drill bit burial, requiring significant time for cleanup and rework, delaying the project, increasing equipment wear and operational risks. In addition, mud cake formed by the mixture of water and rock cuttings adheres to the borehole wall, potentially blocking subsequent exploration and sampling channels and gas extraction pipelines, interfering with the progress of subsequent procedures.

[0006] Secondly, the increased resistance of the drilling tool indirectly increases energy consumption. The atomized water mixes with rock cuttings and dust to form a viscous mud that adheres to the reamer blades, the outer wall of the drill pipe, and the threaded connections. This significantly increases the frictional resistance during the rotation and lifting of the drilling tool, leading to a higher load on the drive motor. This requires additional electrical energy to maintain the operation, offsetting the efficiency gains. In extreme cases, the mud can cause the blades to jam, requiring frequent shutdowns for cleaning, further reducing operational efficiency and increasing ineffective energy. Summary of the Invention

[0007] The purpose of this invention is to provide an energy-saving mining drilling and reaming device to solve the following technical problems: Although existing spray dust suppression technology can improve the working environment to a certain extent in the dust control of mining reaming, it also brings negative effects such as borehole wall instability and increased energy consumption, making it difficult to meet the comprehensive requirements of dust control effect, operational safety, efficiency and energy saving.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] An energy-saving mining drilling and reaming device includes a top plate and multiple columns fixed below the top plate, and a lifting plate slidably connected between the multiple columns. A hydraulic cylinder is installed between the top plate and the lifting plate, and a reaming assembly is installed on the lifting plate.

[0010] The lower surface of the lifting plate is fixed with an upper cover by a first fixing rod. A spray assembly is provided on the upper cover. A lower cover is slidably connected to the upper cover. A dust collection box is fixed with the lower surface of the lifting plate by a second fixing rod. An air inlet pipe is connected between the dust collection box and the upper cover. An air outlet pipe is connected to the side wall of the dust collection box away from the air inlet pipe, and a dust collection fan is installed in the air outlet pipe. A guide rod is fixed between the inner walls of the two sides of the dust collection box. An installation frame is movably provided on the guide rod, and a filter screen is installed on the installation frame.

[0011] A baffle is movably mounted on the air intake pipe, and an adjustment mechanism is provided between the baffle and the dust collection box to adjust the height of the baffle.

[0012] As a further aspect of the present invention: the hole enlarging assembly includes a motor mounted on a lifting plate, the output shaft of the motor is connected to a drill rod, one end of the drill rod passes through a through hole on the upper cover and is fitted with an enlarging head, and a sealing ring is installed inside the through hole of the upper cover.

[0013] As a further aspect of the present invention: the spray assembly includes a pipe fixed to the inner surface of the top wall of the upper cover, the pipe being located on the side near the air inlet pipe, a plurality of atomizing nozzles being installed on the pipe, and a water inlet pipe being connected to the pipe and connected to an external water source.

[0014] As a further aspect of the present invention: a receiving groove adapted to the upper cover is provided on the side wall of the lower cover, the upper cover is slidably connected in the receiving groove, and a guide strip is provided on one side of the top of the lower cover.

[0015] As a further aspect of the present invention: the adjusting mechanism includes a cylinder mounted on the top wall of the dust collection box, a piston plate movably disposed inside the cylinder, a spring connecting the piston plate and the top wall of the dust collection box, a communicating hole being provided between the dust collection box and the cylinder, and a connecting rod being fixed between the piston plate and the baffle.

[0016] As a further aspect of the present invention: an elastic rope is connected between the mounting frame and the inner wall of the dust collection box; a top rod is fixed on one side of the inner wall of the dust collection box; a first support rod is fixed on the side wall of the mounting frame away from the elastic rope; a first wedge block is fixed to one end of the first support rod; a second support rod is fixed to the bottom of the piston plate; a second wedge block is fixed to one end of the second support rod, and the second wedge block is located directly above the communicating hole; rubber protrusions are provided on the inner surfaces of the top and bottom walls of the dust collection box, and the rubber protrusions are located between the mounting frame and the top rod.

[0017] As a further aspect of the present invention: limiting blocks are provided on the inner surfaces of the top and bottom walls of the dust collection box, and the limiting blocks are located between the mounting frame and the connecting hole.

[0018] The beneficial effects of this invention are:

[0019] (1) This invention adopts a combined spray and suction dust reduction mode. The spray only targets and wets 70%-80% of coarse dust particles, without pursuing full-area spray coverage. The remaining fine dust particles are directly sucked up by the suction system, forming a complementary mechanism of "coarse particle wetting and settling + fine particle negative pressure capture". Compared with dust reduction by spray alone, the fine dust capture rate is increased by more than 40%, which can completely suppress the dust dispersion of the hole expansion, improve the working environment from the root, protect the occupational health of operators, and avoid wear problems caused by dust adhering to equipment. In particular, the device can automatically adjust the cross-sectional area of ​​the air inlet pipe according to the dust concentration: when the concentration is high, the diameter is reduced to increase the wind speed, and the high-speed jet forms an "air knife" effect to forcibly peel off the heavy and highly adhesive dust and quickly suck it in, solving the problem that high-concentration dust is difficult to capture completely; when the concentration is low, the diameter is expanded to increase the air intake, so as to achieve full coverage and suction of micro dust with a wide diffusion range, adapting to the dust concentration fluctuation characteristics of each stage of hole expansion operation, and maintaining a stable dust reduction effect without manual intervention.

[0020] (2) The spray volume can be reduced by more than 50% under the combined dust suppression mode of the present invention, which not only reduces water consumption, but also reduces the energy consumption of the atomizing device due to the reduced spray power requirement; on the other hand, after the coarse dust particles are pretreated by spray, the dust collection system does not need to be equipped with a high-power fan, and only a low-power fan is needed to meet the fine particle collection requirements, thus reducing the total energy consumption and significantly improving the energy-saving efficiency of the device. Long-term operation can greatly reduce energy costs.

[0021] (3) The significant reduction in the amount of spray in this invention can significantly reduce the amount of atomized water seeping into the borehole, thereby reducing the softening effect of water mist on soft rock layers, fracture zones and coal and rock with high water content from the source, avoiding borehole wall collapse, diameter reduction and drill bit jamming, drill bit burial and other failures, reducing rework rate and equipment wear risk; at the same time, the reduced amount of water mist can prevent water and rock cuttings from mixing to form mud cakes that adhere to the borehole wall, preventing blockage of exploration and sampling channels, and ensuring the smooth progress of subsequent geological sampling and other processes. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the upper and lower covers of the present invention in a disassembled state;

[0025] Figure 3 This is a schematic diagram of the structure of the pipe and atomizing nozzle of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the dust collection box of the present invention;

[0027] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0028] In the diagram: 1. Top plate; 2. Column; 3. Lifting plate; 4. Hydraulic cylinder; 5. Motor; 6. Drill rod; 7. First fixing rod; 8. Upper cover; 801. Water inlet pipe; 802. Pipe; 803. Atomizing nozzle; 9. Lower cover; 901. Receiving groove; 902. Guide strip; 10. Second fixing rod; 11. Dust collection box; 12. Air inlet pipe; 13. Air outlet pipe; 14. Dust collection fan; 15. Mounting frame; 16. Filter screen; 17. Guide rod; 18. Elastic rope; 19. Top rod; 20. Cylinder; 21. Piston plate; 22. Connecting rod; 23. Baffle; 24. Spring; 25. Connecting hole; 26. Rubber protrusion; 27. Limiting block; 28. First support rod; 29. ​​First wedge block; 30. Second support rod; 31. Second wedge block.

[0029] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual size and shape of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1 to 4 As shown, this invention is an energy-saving mining drilling and reaming device, including a top plate 1 and multiple columns 2 fixed below the top plate 1, and a lifting plate 3 slidably connected between the multiple columns 2. A hydraulic cylinder 4 is installed between the top plate 1 and the lifting plate 3, and a reaming assembly is installed on the lifting plate 3. An upper cover 8 is fixed to the lower surface of the lifting plate 3 by a first fixing rod 7, and a spray assembly is provided on the upper cover 8. A lower cover 9 is slidably connected to the upper cover 8, and a dust collection box 1 is fixed to the lower surface of the lifting plate 3 by a second fixing rod 10. 1. An air inlet pipe 12 connects the dust collection box 11 to the upper cover 8. An air outlet pipe 13 is connected to the side wall of the dust collection box 11 away from the air inlet pipe 12, and a vacuum cleaner fan 14 is installed inside the air outlet pipe 13. A guide rod 17 is fixed between the inner walls of both sides of the dust collection box 11. A mounting frame 15 is movably mounted on the guide rod 17, and a filter screen 16 is mounted on the mounting frame 15. A baffle 23 is movably mounted on the air inlet pipe 12. An adjustment mechanism is provided between the baffle 23 and the dust collection box 11 to adjust the height of the baffle 23. The enlargement assembly includes a mounting plate... A motor 5 is mounted on the lifting plate 3. The output shaft of the motor 5 is connected to a drill rod 6. One end of the drill rod 6 passes through a through hole in the upper cover 8 and is fitted with a reaming head. A sealing ring is installed inside the through hole of the upper cover 8. The spray assembly includes a pipe 802 fixed to the inner surface of the top wall of the upper cover 8. The pipe 802 is located near the air inlet pipe 12. Multiple atomizing nozzles 803 are installed on the pipe 802. A water inlet pipe 801 is connected to the pipe 802 and is connected to an external water source. First, the device is moved to the drilling location, and the reaming head... Facing the drill hole, the lower cover 9 covers the outside of the drill hole, and the upper cover 8 cooperates with the lower cover 9 to prevent dust generated during hole enlargement from leaking out. When working, the hydraulic cylinder 4 and the motor 5 are started. The hydraulic cylinder 4 pushes the lifting plate 3 down, so that the hole enlargement component gradually approaches the drill hole. The motor 5 drives the hole enlargement head to rotate, so that the hole enlargement operation can be performed. Since a large amount of dust is generated during drilling, water is supplied by an external water source. At the same time, the dust suction fan 14 is started to suction the dust. The water solution is sprayed out through the atomizing nozzle 803. The spray only needs to wet 70%-80% of the coarse dust particles, so that the coarse dust particles settle. The fine dust particles enter the dust collection box 11 through negative pressure. The filter screen 16 intercepts the fine dust particles, and the filtered air is discharged through the air outlet pipe 13.

[0032] During the pore-expanding stage, a large amount of dust is generated instantly. After the fine dust particles enter the dust collection box 11, the filter screen 16 is covered by fine powder, which instantly increases the resistance of the filter screen 16. The power of the vacuum fan 14 remains unchanged, but due to the increased resistance, the negative pressure in the dust collection box 11 will instantly increase. In conjunction with the adjustment mechanism, the baffle 23 will move downward, thereby reducing the cross-sectional area of ​​the air intake pipe 12, increasing the wind speed, and the local flow velocity will increase sharply. The strong suction force generated can forcibly bring in the high concentration of dust.

[0033] See Figure 1 and Figure 2 The lower cover 9 has a receiving groove 901 on its side wall that is adapted to the upper cover 8. The upper cover 8 is slidably connected in the receiving groove 901. A guide strip 902 is provided on one side of the top of the lower cover 9. The upper cover 8 moves together with the lifting plate 3. The sliding connection between the upper cover 8 and the lower cover 9 effectively prevents dust leakage. The guide strip 902 can prevent settled coarse dust particles from entering the receiving groove 901.

[0034] See Figure 3 , Figure 4 and Figure 5 The adjustment mechanism includes a cylinder 20 installed on the top wall of the dust collection box 11. A piston plate 21 is movably installed inside the cylinder 20. A spring 24 is connected between the piston plate 21 and the top wall of the dust collection box 11. A connecting hole 25 is provided between the dust collection box 11 and the cylinder 20. A connecting rod 22 is fixed between the piston plate 21 and the baffle 23. When the resistance of the filter screen 16 increases, the resulting negative pressure will cause the piston plate 21 to move downward and compress the spring 24. The piston plate 21 can then drive the baffle 23 to move downward through the connecting rod 22. When a large amount of dust enters the dust collection box 11, the dust concentration decreases, the resistance returns to the normal working state, and the spring 24 drives the piston plate 21 to reset, which can reset the baffle 23. The enlarged opening can draw in more air, covering all the micro dust floating in the upper cover 8 and the lower cover 9 with a wide diffusion range, thus solving the problem of fine dust easily diffusing and escaping.

[0035] See Figure 4 and Figure 5A tension rope 18 connects the mounting frame 15 to the inner wall of the dust collection box 11. A top rod 19 is fixed on one inner wall of the dust collection box 11. A first support rod 28 is fixed on the side wall of the mounting frame 15 away from the tension rope 18. A first wedge block 29 is fixed to one end of the first support rod 28. A second support rod 30 is fixed to the bottom of the piston plate 21. A second wedge block 31 is fixed to one end of the second support rod 30, and the second wedge block 31 is located directly above the connecting hole 25. Rubber protrusions 26 are provided on the inner surfaces of the top and bottom walls of the dust collection box 11, and the rubber protrusions 26 are located between the mounting frame 15 and the top rod 19. Limiting blocks 27 are provided on the inner surfaces of the top and bottom walls of the dust collection box 11, and the limiting blocks 27 are located between the mounting frame 15 and the connecting hole 25. As dust adheres to the filter screen 16, the resistance will continuously increase. Even if the amount of newly added dust decreases, the old dust is still on the filter screen 16, and the resistance will not decrease. If the suction power decreases, the system will fall into a vicious cycle of "the suction power getting weaker and weaker and the cross-sectional area getting smaller and smaller". To avoid this problem, as the negative pressure increases, the piston plate 21 descends a greater distance. In the initial state, the limiting block 27 and the rubber protrusion 26 fix the positions of the mounting frame 15 and the filter screen 16. The tension rope 18 is in a stretched state. The second wedge block 31 below the piston plate 21 passes through the connecting hole 25 and contacts the first wedge block 29, pushing the mounting frame 15 to move past the rubber protrusion 26. Under the tension of the tension rope 18, the mounting frame 15 moves to the right and hits the top rod 19, shaking off the dust on the filter screen 16. After the dust falls off, the resistance of the filter screen 16 decreases instantly, and the negative pressure in the box disappears. If the negative pressure increases again later, the negative pressure will drive the mounting frame 15 to move to the left and reset, repeating the above process to ensure the normal operation of subsequent dust collection. The operator can clean the dust collected in the box periodically.

[0036] The working principle of this invention is as follows: First, the entire device is moved to the position of the hole to be enlarged, so that the enlarging head installed at one end of the drill rod 6 is precisely aligned with the hole. The lower cover 9, which is connected to the upper cover 8, covers the outside of the hole. The cooperation structure between the upper cover 8 and the lower cover 9 can form a closed dust barrier space. After the device is in place, the hydraulic cylinder 4 and the motor 5 are started. The hydraulic cylinder 4 outputs power to push the lifting plate 3 to move downward along the column 2, which drives the enlarging assembly to gradually approach the hole. The output shaft of the motor 5 drives the drill rod 6 to rotate, which in turn drives the enlarging head to rotate, and the hole enlarging operation begins. The upper cover 8 and the dust collection box 11 descend together with the lifting plate 3.

[0037] During the borehole enlargement process, the drill rod 6 generates a large amount of dust through cutting friction with the rock strata. At this time, the external water source (not shown) and the dust extraction fan 14 are turned on simultaneously. The external water source is transported to the pipe 802 through the water inlet pipe 801, and then atomized and sprayed out through multiple atomizing nozzles 803 on the pipe 802. The spray only specifically wets 70%-80% of the coarse dust particles, causing the coarse dust particles to become heavier and settle in the enclosed space. The remaining fine dust particles are then drawn into the dust collection box 11 through the air inlet pipe 12 under the negative pressure of the dust extraction fan 14. After the fine dust particles are intercepted and filtered by the filter screen 16, the clean air is discharged through the air outlet pipe 13 on the side wall of the dust collection box 11, achieving a combined dust reduction effect of coarse particle spray settling and fine particle dust extraction filtration.

[0038] During the hole expansion start-up phase, a large amount of dust is generated instantly. A large amount of fine dust particles quickly enter the dust collection box 11 and cover the surface of the filter screen 16, instantly increasing the ventilation resistance of the filter screen 16. Since the power of the dust collection fan 14 remains unchanged, the increased resistance causes the negative pressure in the dust collection box 11 to increase instantly. This negative pressure acts on the piston plate 21 in the cylinder 20 through the connecting hole 25 between the dust collection box 11 and the cylinder 20, pushing the piston plate 21 to move downward and compress the spring 24. The piston plate 21 drives the baffle 23 to move downward synchronously through the connecting rod 22, thereby reducing the cross-sectional area of ​​the air intake pipe 12 and significantly increasing the wind speed in the air intake pipe 12. The strong suction generated by the sudden increase in local flow velocity can forcefully and quickly suck the high-concentration dust generated later into the dust collection box 11, avoiding the accumulation of high-concentration dust.

[0039] When the hole enlargement operation enters a stable stage, the amount of dust generated decreases, the dust concentration entering the dust collection box 11 decreases, the amount of dust adhering to the surface of the filter screen 16 no longer increases, and the ventilation resistance gradually returns to the normal level. At this time, the spring 24 releases elastic potential energy to push the piston plate 21 to reset upwards, and drives the baffle 23 to rise through the connecting rod 22, thereby expanding the cross-sectional area of ​​the air intake pipe 12 and increasing the air intake to cover the micro dust with a wide diffusion range in the enclosed space of the upper cover 8 and the lower cover 9, and completely solving the problem of fine dust easily diffusing and escaping.

[0040] To prevent the continuous accumulation of dust on the filter 16 from causing the resistance to fail to decrease automatically and the system to fall into a vicious cycle of "increasing suction and decreasing cross-sectional area," the limiting block 27 and the rubber protrusion 26 initially fix the positions of the mounting frame 15 and the filter 16, and the tension rope 18 is in a stretched state. When the resistance of the filter 16 continues to increase, causing the negative pressure to further increase, the piston plate 21 descends a greater distance, driving the second support rod 30 and the second wedge block 31 to pass through the connecting hole 25 and contact the first wedge block 29, utilizing the wedge... The force of the surface pushes the mounting frame 15 towards the top rod 19, causing the mounting frame 15 to pass the limit of the rubber protrusion 26. At this time, the tensioned rope 18 quickly contracts, pulling the mounting frame 15 to strike the top rod 19. The vibration generated by the impact shakes off the dust attached to the filter screen 16. After the dust is shaken off, the ventilation resistance of the filter screen 16 decreases instantly, the negative pressure in the dust collection box 11 disappears, and the spring 24 drives the piston plate 21 to reset. The operator can open the dust collection box 11 periodically to clean the shaken-off dust, ensuring the continuous and stable operation of the device.

[0041] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. An energy-saving mining drilling and reaming device, comprising a top plate (1) and multiple columns (2) fixed below the top plate (1), characterized in that, It also includes a lifting plate (3) that is slidably connected between multiple columns (2), a hydraulic cylinder (4) is installed between the top plate (1) and the lifting plate (3), and a hole-expanding assembly is installed on the lifting plate (3); The lower surface of the lifting plate (3) is fixed with an upper cover (8) by a first fixing rod (7). A spray assembly is provided on the upper cover (8). A lower cover (9) is slidably connected to the upper cover (8). A dust collection box (11) is fixed on the lower surface of the lifting plate (3) by a second fixing rod (10). An air inlet pipe (12) is connected between the dust collection box (11) and the upper cover (8). An air outlet pipe (13) is connected to the side wall of the dust collection box (11) away from the air inlet pipe (12). A dust collection fan (14) is installed in the air outlet pipe (13). A guide rod (17) is fixed between the inner walls on both sides of the dust collection box (11). An installation frame (15) is movably provided on the guide rod (17). A filter screen (16) is installed on the installation frame (15). A baffle (23) is movably provided on the air intake pipe (12), and an adjustment mechanism is provided between the baffle (23) and the dust collection box (11) for adjusting the height of the baffle (23).

2. The energy-saving mining drilling and reaming device according to claim 1, characterized in that, The hole enlarging assembly includes a motor (5) mounted on a lifting plate (3). The output shaft of the motor (5) is connected to a drill rod (6). One end of the drill rod (6) passes through a through hole on the upper cover (8) and is fitted with an enlarging head. A sealing ring is installed inside the through hole of the upper cover (8).

3. The energy-saving mining drilling and reaming device according to claim 1, characterized in that, The spray assembly includes a pipe (802) fixed to the inner surface of the top wall of the upper cover (8). The pipe (802) is located on the side near the air inlet pipe (12). Multiple atomizing nozzles (803) are installed on the pipe (802). A water inlet pipe (801) is connected to the pipe (802) and is connected to an external water source.

4. The energy-saving mining drilling and reaming device according to claim 1, characterized in that, The lower cover (9) has a receiving groove (901) adapted to the upper cover (8) on its side wall. The upper cover (8) is slidably connected in the receiving groove (901). A guide strip (902) is provided on one side of the top of the lower cover (9).

5. The energy-saving mining drilling and reaming device according to claim 1, characterized in that, The adjustment mechanism includes a cylinder (20) installed on the top wall of the dust collection box (11), a piston plate (21) is movably arranged inside the cylinder (20), a spring (24) is connected between the piston plate (21) and the top wall of the dust collection box (11), a connecting hole (25) is opened between the dust collection box (11) and the cylinder (20), and a connecting rod (22) is fixed between the piston plate (21) and the baffle (23).

6. The energy-saving mining drilling and reaming device according to claim 5, characterized in that, A tension rope (18) is connected between the mounting frame (15) and the inner wall of the dust collection box (11). A top rod (19) is fixed on one side of the inner wall of the dust collection box (11). A first support rod (28) is fixed on the side wall of the mounting frame (15) away from the tension rope (18). A first wedge block (29) is fixed at one end of the first support rod (28). A second support rod (30) is fixed at the bottom of the piston plate (21). A second wedge block (31) is fixed at one end of the second support rod (30). The second wedge block (31) is located directly above the connecting hole (25). Rubber protrusions (26) are provided on the inner surfaces of the top and bottom walls of the dust collection box (11). The rubber protrusions (26) are located between the mounting frame (15) and the top rod (19).

7. The energy-saving mining drilling and reaming device according to claim 6, characterized in that, Limiting blocks (27) are provided on the inner surfaces of the top and bottom walls of the dust collection box (11), and the limiting blocks (27) are located between the mounting frame (15) and the connecting hole (25).

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