Dust falling device for stone mining and processing

Abstract

The application relates to the technical field of dust falling devices, and discloses a dust falling device for stone mining and processing, which comprises a hollow bottom column, a hollow sliding rod is slidably connected to the hollow bottom column, a rotating seat is fixed to the hollow sliding rod, a rotatable protective cover is arranged on the rotating seat, dust falling nozzles are fixed in the protective cover, deflectable mounting blocks and wedge-shaped resisting rods are arranged on the protective cover, first brush blocks are rotatably connected to the mounting blocks, a first annular sheet and a filter cylinder are fixed to the hollow bottom column, filter sheets are fixed in the filter cylinder, a first electric three-way valve is arranged on the water inlet of the filter cylinder, the dust falling nozzles can brush off the impurities attached to the periphery of the spray holes and the impurities on the filter sheets, the dust falling nozzle spraying effect and the filtering efficiency of the filter sheets are improved, the device does not need to be disassembled during cleaning, time and labor are saved, and the device is convenient and fast.

Description

Technical Field

[0001] This invention relates to the field of dust suppression devices, specifically a dust suppression device for stone mining and processing. Background Technology

[0002] During stone quarrying, drilling, blasting, and crushing processes generate large amounts of dust with a wide particle size distribution and high concentration, severely polluting the working environment, threatening worker health, and causing damage to the surrounding ecosystem. Traditional dust suppression methods, such as wet dust collection, suffer from low efficiency and high water consumption. Existing technologies, such as water spray dust suppression devices, atomize water through a spray system to cover the dust source, effectively suppressing dust dispersion. The core principle is to utilize the collision and agglomeration of water mist with dust particles, causing them to settle. This technology is simple to operate, low in cost, and widely used in quarrying sites. It can significantly reduce dust concentration, improve air quality, and reduce water waste, making it an important choice for environmental protection in the stone industry.

[0003] Because stone quarries are located far from urban areas, the water spray dust suppression system mainly uses groundwater or rainwater, which has poor water quality and is prone to clogging of the nozzles. Although filters can be installed to remove impurities, the filters themselves can also become clogged after prolonged use, affecting the water output. Secondly, dust and impurities from stone quarrying tend to adhere to the nozzles, blocking the water mist's path and causing the mist field to become distorted and uneven, which affects the spraying effect. The nozzles and filters need to be manually removed and cleaned, which is time-consuming and labor-intensive and also affects the dust suppression effect. Summary of the Invention

[0004] This invention provides a dust suppression device for stone mining and processing, which has the function of brushing away impurities attached to the nozzles of the dust suppression nozzles and impurities on the filter plates, thereby improving the spraying effect of the dust suppression nozzles and the filtration efficiency of the filter plates. The device does not require disassembly during cleaning, saving time and effort, and is convenient and quick. It solves the problem mentioned in the background art that manually disassembling and cleaning the nozzles and filters of the device is time-consuming and laborious, and affects the dust suppression effect.

[0005] The present invention provides the following technical solution: a dust suppression device for stone mining and processing, comprising a hollow base column, a hollow slide rod slidably connected to the hollow base column, a rotating seat fixed to the hollow slide rod, a rotatable protective cover provided on the rotating seat, a dust suppression nozzle fixed inside the protective cover, and a deflectable mounting block and a wedge-shaped contact rod respectively provided on the protective cover, a first brush block rotatably connected to the mounting block, and a first annular plate and a filter cylinder respectively fixed on the hollow base column;

[0006] The filter cylinder has a filter plate fixed inside. A first electric three-way valve is installed on the water inlet of the filter cylinder, and a second electric three-way valve is installed on the water outlet of the filter cylinder. A flushing pipe is connected between the first electric three-way valve and the second electric three-way valve. A rotatable second brush block is provided inside the filter cylinder.

[0007] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, the mounting block is fixed with a toothed block, the toothed block is fixed with a first rotating rod, the first rotating rod is rotatably connected to the protective cover, the protective cover is slidably connected with a Z-shaped strip, a first spring is connected between the Z-shaped strip and the protective cover, a toothed rack is meshed with the toothed block, and the toothed rack is elastically connected to one end of the Z-shaped strip through a second spring.

[0008] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, wherein: one end of the first brush block is fixed with an abutment strip, the abutment strip abuts against a Z-shaped block, the Z-shaped block is fixed with an abutment head, the abutment head is elastically connected to the mounting block through a third spring, and one end of the Z-shaped strip is fixed with an abutment piece.

[0009] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, the wedge-shaped contact rod is slidably connected to the protective cover, and a limit block is fixed on one side of the wedge-shaped contact rod. A first contact wedge block is fixed on the wedge-shaped contact rod, and the wedge-shaped contact rod abuts against the other end of the Z-shaped strip.

[0010] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, wherein: a plurality of first arc-shaped contact blocks are fixed on the first annular plate and are circumferentially distributed at equal intervals; an electric push rod is fixed on the hollow bottom column; and the piston rod of the electric push rod is fixedly connected to the lower end of the hollow slide rod.

[0011] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, a hollow rod is fixed to the lower end of the protective cover, a rotary joint is fixed to the lower end of the hollow rod, and a servo motor for driving the hollow rod to rotate is fixed inside the rotating seat.

[0012] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, a rectangular hollow block is fixed on the filter cylinder, a second rotating rod is fixed on the rectangular hollow block, the end of the second rotating rod is provided with a rounded rectangular section, and the second brush block is elastically connected to the rounded rectangular section through a fourth spring.

[0013] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, wherein: a plurality of second arc-shaped abutment blocks are slidably connected to the first annular plate, the lower end of the second arc-shaped abutment blocks is fixed to the second annular plate, a fifth spring is connected between the second annular plate and the first annular plate, and the second annular plate is slidably connected to the hollow bottom column, a second rack is fixed to one side of the second annular plate, a gear is fixed to the second rotating rod, and the second rack meshes with the gear.

[0014] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, a piston cylinder is fixed on the flushing pipe, a piston plate and a piston abutment rod are slidably connected inside the piston cylinder, the piston abutment rod is fixedly connected to the piston plate, an abutment ring is provided inside the filter cylinder, and the upper end of the piston abutment rod abuts against the abutment ring.

[0015] As an optional embodiment of the dust suppression device for stone mining and processing described in this invention, the filter cylinder has a slag discharge port on one side, a sealing block is provided inside the slag discharge port, an L-shaped bracket is connected to the lower end of the sealing block, one end of the L-shaped bracket is fixedly connected to the piston contact rod, and a sixth spring is connected between the L-shaped bracket and the filter cylinder.

[0016] The present invention has the following beneficial effects:

[0017] 1. In this dust suppression device for stone mining and processing, a hollow sliding rod slides on a hollow base column to adjust the spray height of the dust suppression nozzles. This allows for easy adjustment of the working height according to the construction stage or scene requirements. Through the cooperation of the rotating seat, hollow rod, and servo motor, the dust suppression nozzles mounted on the protective cover can be easily rotated, ensuring that the water mist covers the entire area without dead angles, suppressing dust pollution and improving the air purification effect. The filter discs inside the filter cartridge can filter out impurities in the water, preventing them from entering the dust suppression nozzles and causing blockages that would affect the spraying effect. The first brush block on the mounting block contacts several spray holes of the dust suppression nozzles, allowing the first brush block to remove impurities adhering to the spray holes during rotation, preventing obstruction of the water mist spray path and ensuring uniform water mist spraying, thereby improving the spraying effect. The dust suppression nozzles do not need to be disassembled for cleaning, saving time and effort, and is convenient and quick.

[0018] When the dust suppression nozzle moves downward during cleaning, the wedge-shaped contact rod contacts the first annular plate, causing the Z-shaped strip to move horizontally along the rack. This causes the toothed block to deflect the mounting block, allowing the first brush block to automatically abut against the end face of the dust suppression nozzle and contact the nozzle orifice. When the protective cover rotates, the wedge-shaped contact rod intermittently contacts the first arc-shaped contact block, causing the first contact wedge block to reciprocate against the Z-shaped strip. Through the cooperation of the contact strip, the Z-shaped block, the contact head, and the contact plate, the first brush block automatically deflects back and forth, facilitating the automatic removal of impurities adhering to the nozzle orifice of the dust suppression nozzle.

[0019] 2. In this dust suppression device for stone mining and processing, the water flow path at the inlet of the filter cylinder can be adjusted by the first electric three-way valve, and the water flow path at the outlet of the filter cylinder can be adjusted by the second electric three-way valve. When the filter discs inside the filter cylinder are rinsed, water flows into the rinsing pipe and into one end of the filter cylinder, increasing the water pressure inside the filter cylinder. This facilitates backwashing of the back of the filter discs, making it easier for impurities to be flushed out, reducing clogging, and improving water filtration efficiency. The second brush block inside the filter cylinder can contact the surface of the filter discs. On the one hand, the rotation of the second brush block can effectively remove impurities on the filter discs, preventing the accumulation of clogging. On the other hand, the bristles of the second brush block can be inserted into the filter holes of the filter discs, causing stubborn impurities inside the filter holes to loosen. This facilitates the flushing out of impurities during rinsing, improving the cleaning effect of the filter discs. During the cleaning process, the filter discs do not need to be frequently disassembled, saving time and effort, and is convenient and quick.

[0020] When the filter is backwashed, the wedge-shaped contact rod rotates to intermittently contact several second arc-shaped contact blocks on the first annular plate, causing the second annular plate to move up and down reciprocally. This drives the gears on the second rack and the second rotating rod to rotate reciprocally, causing the second brush block to rotate automatically and brush away impurities from the filter.

[0021] 3. In this dust suppression device for stone mining and processing, when the contact ring inside the filter cylinder moves horizontally, it can abut against the second brush block so that the bristles of the second brush block can contact the surface of the filter plate, facilitating the cleaning of impurities. Through the slag discharge port on the filter cylinder, impurities and sewage are discharged from the filter cylinder. The sealing block inside the slag discharge port can seal the filter cylinder if it is not cleaned, preventing water leakage and waste. The piston cylinder is connected to the flushing pipe. During flushing, the water pressure inside the piston cylinder increases, causing the piston plate to move the piston contact rod upward, which can automatically abut against the contact ring and automatically disengage the sealing block from the slag discharge port. Attached Figure Description

[0022] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0023] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0024] Figure 3 This is a cross-sectional view of the structure of the present invention.

[0025] Figure 4 This is a schematic diagram of the protective cover structure of the present invention.

[0026] Figure 5 This is a cross-sectional view of the filter cartridge of the present invention.

[0027] Figure 6 This is a schematic diagram of the internal structure of the protective cover of the present invention.

[0028] Figure 7 This is a schematic diagram of the rounded rectangular segment structure of the present invention.

[0029] Figure 8 for Figure 2 Enlarged view of point A in the middle.

[0030] Figure 9 for Figure 4 Enlarged view of section B in the middle.

[0031] Figure 10 for Figure 5 Enlarged view of point C.

[0032] Figure 11 for Figure 5 Enlarged view of point D in the middle.

[0033] In the diagram: 1. Hollow base column; 2. Hollow slide rod; 3. Rotating seat; 4. Protective cover; 5. Dust suppression nozzle; 6. Mounting block; 7. First brush block; 8. Wedge-shaped contact rod; 9. First annular plate; 10. Filter cylinder; 11. Filter plate; 12. First electric three-way valve; 13. Second electric three-way valve; 14. Flushing pipe; 15. Second brush block; 16. Toothed block; 17. First rotating rod; 18. Z-shaped strip; 19. First spring; 20. Toothed rack; 21. Second spring; 22. Contact strip; 23. C-shaped block; 24. Contact head; 25. Third spring; 26. Contact... 27. Limiting block; 28. First abutting wedge block; 29. ​​First arc-shaped abutting block; 30. Electric push rod; 31. Hollow rod; 32. Rotary joint; 33. Servo motor; 34. Rectangular hollow block; 35. Second rotating rod; 36. Rounded rectangular segment; 37. Fourth spring; 38. Second arc-shaped abutting block; 39. Second annular plate; 39. Fifth spring; 40. Second rack; 41. Gear; 42. Piston cylinder; 43. Piston plate; 44. Piston abutting rod; 45. Abutting ring; 46. Slag discharge port; 47. Sealing block; 48. L-shaped bracket; 49. Sixth spring. Detailed Implementation

[0034] 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.

[0035] Example 1, please refer to Figures 1 to 11 A dust suppression device for stone mining and processing includes a hollow base column 1, a hollow slide rod 2 slidably connected to the hollow base column 1, a rotating seat 3 fixed on the hollow slide rod 2, a rotatable protective cover 4 on the rotating seat 3, a dust suppression nozzle 5 fixed inside the protective cover 4, and a deflectable mounting block 6 and a wedge-shaped contact rod 8 respectively on the protective cover 4. A first brush block 7 is rotatably connected to the mounting block 6, and a first annular plate 9 and a filter cylinder 10 are respectively fixed on the hollow base column 1.

[0036] A filter element 11 is fixed inside the filter cylinder 10. A first electric three-way valve 12 is installed on the inlet of the filter cylinder 10, and a second electric three-way valve 13 is installed on the outlet of the filter cylinder 10. A flushing pipe 14 is connected between the first electric three-way valve 12 and the second electric three-way valve 13. A rotatable second brush block 15 is provided inside the filter cylinder 10.

[0037] A toothed block 16 is fixed on the mounting block 6, and a first rotating rod 17 is fixed on the toothed block 16. The first rotating rod 17 is rotatably connected to the protective cover 4. A Z-shaped strip 18 is slidably connected to the protective cover 4. A first spring 19 is connected between the Z-shaped strip 18 and the protective cover 4. A rack 20 is meshed on the toothed block 16. The rack 20 is elastically connected to one end of the Z-shaped strip 18 through a second spring 21.

[0038] One end of the first brush block 7 is fixed with an abutment strip 22, the abutment strip 22 abuts against a chamfered block 23, the chamfered block 23 is fixed with an abutment head 24, the abutment head 24 is elastically connected to the mounting block 6 through a third spring 25, and one end of the Z-shaped strip 18 is fixed with an abutment piece 26.

[0039] The wedge-shaped abutment rod 8 is slidably connected to the protective cover 4, and a limit block 27 is fixed on one side of the wedge-shaped abutment rod 8. A first abutment wedge block 28 is fixed on the wedge-shaped abutment rod 8, and the wedge-shaped abutment rod 8 abuts against the other end of the Z-shaped strip 18.

[0040] Several first arc-shaped contact blocks 29 are fixed on the first annular plate 9 and are circumferentially distributed. An electric push rod 30 is fixed on the hollow bottom column 1. The piston rod of the electric push rod 30 is fixedly connected to the lower end of the hollow slide rod 2.

[0041] A hollow rod 31 is fixed to the lower end of the protective cover 4, and a rotary joint 32 is fixed to the lower end of the hollow rod 31. A servo motor 33 for driving the hollow rod 31 to rotate is fixed inside the rotating seat 3.

[0042] refer to Figures 1 to 9 When the device is in use, the valve cores of the first electric three-way valve 12 and the second electric three-way valve 13 are adjusted to close both ends of the flushing pipe 14. Water is then transported to the filter cartridge 10 through the water supply equipment and filtered by the filter plate 11. The water then flows out through the second electric three-way valve 13. Through the cooperation of the pipe, rotary joint 32 and hollow rod 31, the filtered water is sprayed out through the dust suppression nozzle 5 to form a water mist for dust suppression around the stone quarry. The height of the hollow slide rod 2 sliding on the hollow bottom column 1 can be adjusted by the electric push rod 30 to adjust the spraying height of the dust suppression nozzle 5. The servo motor 33 in the rotating seat 3 drives the hollow rod 31 to rotate the protective cover 4 and the dust suppression nozzle 5 through gear transmission, so that the water mist can cover the entire area without dead angles, suppress dust pollution, and improve the air purification effect.

[0043] When the dust suppression nozzle 5 needs cleaning at set times, the electric push rod 30 drives the hollow slide rod 2 to move down and reset, causing the wedge-shaped contact rod 8 to contact the first annular plate 9, so that the wedge-shaped contact rod 8 initially contacts the Z-shaped strip 18. The first spring 19 initially stores force, and the Z-shaped strip 18 drives the elastically connected rack 20 to move, causing the toothed block 16 to drive the first rotating rod 17 on the mounting block 6 to rotate on the protective cover 4, so that the first brush block 7 rotates and abuts against the end face of the dust suppression nozzle 5. When the servo motor 33 rotates, the protective cover 4 drives the wedge-shaped contact rod 8 to rotate and contact the first annular plate 9. Several first arc-shaped contact blocks 29 on 9 intermittently contact each other, causing the first contact wedge block 28 to move upward and contact the Z-shaped strip 18. The first spring 19 continues to store force, causing the contact piece 26 to contact the contact head 24. The contact head 24 drives the shaped block 23 to move and contact the contact strip 22. The third spring 25 stores force. At the same time, the first brush block 7 reciprocates on the mounting block 6, which facilitates the automatic removal of impurities attached around the nozzle of the dust suppression nozzle 5, improving the spraying effect of the dust suppression nozzle 5. Meanwhile, the rack 20 retracts into the Z-shaped strip 18, and the second spring 21 stores force.

[0044] The first electric three-way valve 12 and the second electric three-way valve 13 have the same valve core structure, both of which are equipped with a T-shaped channel. The valve core is driven by a motor to rotate on the valve body, and the position of the T-shaped channel is adjusted to control the direction of water flow.

[0045] Example 2 is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1 to 11A rectangular hollow block 34 is fixed on the filter cylinder 10, and a second rotating rod 35 is fixed on the rectangular hollow block 34. The end of the second rotating rod 35 is provided with a rounded rectangular section 36, and the second brush block 15 is elastically connected to the rounded rectangular section 36 through a fourth spring 37.

[0046] A plurality of second arc-shaped abutment blocks 38 are slidably connected to the first annular plate 9, which are circumferentially distributed. The lower end of the second arc-shaped abutment block 38 is fixed to a second annular plate 39. A fifth spring 391 is connected between the second annular plate 39 and the first annular plate 9. The second annular plate 39 is slidably connected to the hollow bottom column 1. A second rack 40 is fixed to one side of the second annular plate 39. A gear 41 is fixed to the second rotating rod 35. The second rack 40 and the gear 41 mesh with each other.

[0047] refer to Figures 1 to 10 While the dust suppression nozzle 5 is cleaning, the filter element 11 is also being cleaned simultaneously. The first electric three-way valve 12 adjusts the valve core angle, causing the water inlet of the filter cartridge 10 to close and the water inlet of the flushing pipe 14 to open. The second electric three-way valve 13 adjusts the valve core angle, stopping the water supply to the dust suppression nozzle 5, so that the water in the flushing pipe 14 is delivered to the other end of the filter cartridge 10, facilitating the flushing of the back of the filter element 11. When the pressure increases, it causes the impurities blocked inside the filter element 11 to be flushed out, reducing blockage and improving the water filtration efficiency. At the same time, when the wedge-shaped contact rod 8 rotates, it can achieve intermittent contact with several second arc-shaped contact blocks 38, promoting... The second annular plate 39 slides back and forth on the first annular plate 9. The fifth spring 391 continuously stores and releases its elastic force so that the second annular plate 39 drives the second rack 40 to rotate within the rectangular hollow block 34 and the gear 41 on the second rotating rod 35. When the rotating second brush block 15 abuts against the surface of the filter plate 11, on the one hand, the rotation of the second brush block 15 can effectively remove impurities on the filter plate 11 and prevent the accumulation of blockages. On the other hand, the bristles of the second brush block 15 can be inserted into the filter holes of the filter plate 11, causing stubborn impurities in the filter holes to loosen and making it easier to flush out the impurities during rinsing, thus improving the cleaning effect of the filter plate 11.

[0048] Example 3 is an improvement upon Example 2. For details, please refer to [link / reference]. Figures 1 to 11 A piston cylinder 42 is fixed on the flushing pipe 14. A piston plate 43 and a piston abutment rod 44 are slidably connected inside the piston cylinder 42. The piston abutment rod 44 is fixedly connected to the piston plate 43. An abutment ring 45 is provided inside the filter cylinder 10. The upper end of the piston abutment rod 44 abuts against the abutment ring 45.

[0049] A slag discharge port 46 is provided on one side of the filter cylinder 10. A sealing block 47 is provided inside the slag discharge port 46. An L-shaped bracket 48 is connected to the lower end of the sealing block 47. One end of the L-shaped bracket 48 is fixedly connected to the piston abutment rod 44, and a sixth spring 49 is connected between the L-shaped bracket 48 and the filter cylinder 10.

[0050] refer to Figures 1 to 11 The second brush block 15 has a certain gap between its initial position and the filter plate 11, which facilitates water filtration by reducing the obstruction of the filter holes of the filter plate 11 and improving filtration efficiency. The second brush block 15 needs to be pressed against the filter plate 11 when cleaning. When the internal pressure of the flushing pipe 14 increases, it causes the piston plate 43 to drive the piston contact rod 44 to slide on the piston cylinder 42, so that the upper end of the piston contact rod 44 slides synchronously in the filter cylinder 10, so as to contact the contact ring 45, causing the contact ring 45 to move horizontally and push the second brush block 15 to slide on the rounded rectangular section 36. The second brush block 15 thus automatically presses against the filter plate 11. At the same time, the fourth spring 37 stores power. The rounded rectangular section 36 can drive the second brush block 15 to rotate synchronously when the second rotating rod 35 rotates, avoiding the fourth spring 37 from twisting and affecting its service life.

[0051] As the piston rod 44 moves upward, it drives the L-shaped bracket 48 to move synchronously. The sixth spring 49 stores energy, which enables the sealing block 47 to automatically detach from the slag discharge port 46 of the filter cylinder 10, causing the slag discharge port 46 to open automatically so that impurities and sewage can be discharged from the filter cylinder 10, reducing the impurities inside the filter cylinder 10.

[0052] The first electric three-way valve 12, the second electric three-way valve 13, the electric push rod 30, and the servo motor 33 are all electrically connected to the controller via wires.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A dust suppression device for stone mining and processing, comprising a hollow base column (1), characterized in that: A hollow slide rod (2) is slidably connected to the hollow bottom column (1). A rotating seat (3) is fixed on the hollow slide rod (2). A rotatable protective cover (4) is provided on the rotating seat (3). A dust-reducing nozzle (5) is fixed inside the protective cover (4). A deflectable mounting block (6) and a wedge-shaped contact rod (8) are respectively provided on the protective cover (4). A first brush block (7) is rotatably connected to the mounting block (6). A first annular plate (9) and a filter cylinder (10) are respectively fixed on the hollow bottom column (1). The filter cylinder (10) is fixed with a filter plate (11). A first electric three-way valve (12) is installed on the inlet of the filter cylinder (10), and a second electric three-way valve (13) is installed on the outlet of the filter cylinder (10). A flushing pipe (14) is connected between the first electric three-way valve (12) and the second electric three-way valve (13). A rotatable second brush block (15) is provided inside the filter cylinder (10).

2. The dust suppression device for stone mining and processing according to claim 1, characterized in that: A toothed block (16) is fixed on the mounting block (6), and a first rotating rod (17) is fixed on the toothed block (16). The first rotating rod (17) is rotatably connected to the protective cover (4). A Z-shaped strip (18) is slidably connected to the protective cover (4). A first spring (19) is connected between the Z-shaped strip (18) and the protective cover (4). A rack (20) is meshed on the toothed block (16). The rack (20) is elastically connected to one end of the Z-shaped strip (18) through a second spring (21).

3. The dust suppression device for stone mining and processing according to claim 2, characterized in that: One end of the first brush block (7) is fixed with an abutment strip (22), the abutment strip (22) abuts against a Z-shaped block (23), the Z-shaped block (23) is fixed with an abutment head (24), the abutment head (24) is elastically connected to the mounting block (6) through a third spring (25), and one end of the Z-shaped strip (18) is fixed with an abutment piece (26).

4. The dust suppression device for stone mining and processing according to claim 2, characterized in that: The wedge-shaped abutment rod (8) is slidably connected to the protective cover (4), and a limit block (27) is fixed on one side of the wedge-shaped abutment rod (8). A first abutment wedge block (28) is fixed on the wedge-shaped abutment rod (8), and the wedge-shaped abutment rod (8) abuts against the other end of the Z-shaped strip (18).

5. The dust suppression device for stone mining and processing according to claim 1, characterized in that: A number of first arc-shaped contact blocks (29) are fixed on the first annular plate (9) and are distributed circumferentially. An electric push rod (30) is fixed on the hollow bottom column (1). The piston rod of the electric push rod (30) is fixedly connected to the lower end of the hollow slide rod (2).

6. The dust suppression device for stone mining and processing according to claim 1, characterized in that: The lower end of the protective cover (4) is fixed with a hollow rod (31), the lower end of the hollow rod (31) is fixed with a rotary joint (32), and a servo motor (33) for driving the hollow rod (31) to rotate is fixed inside the rotating seat (3).

7. The dust suppression device for stone mining and processing according to claim 1, characterized in that: A rectangular hollow block (34) is fixed on the filter cylinder (10), and a second rotating rod (35) is fixed on the rectangular hollow block (34). The end of the second rotating rod (35) is provided with a rounded rectangular section (36), and the second brush block (15) is elastically connected to the rounded rectangular section (36) through a fourth spring (37).

8. The dust suppression device for stone mining and processing according to claim 7, characterized in that: A plurality of second arc-shaped abutment blocks (38) are slidably connected on the first annular plate (9). The lower end of the second arc-shaped abutment block (38) is fixed with a second annular plate (39). A fifth spring (391) is connected between the second annular plate (39) and the first annular plate (9). The second annular plate (39) is slidably connected on the hollow bottom column (1). A second rack (40) is fixed on one side of the second annular plate (39). A gear (41) is fixed on the second rotating rod (35). The second rack (40) and the gear (41) mesh with each other.

9. The dust suppression device for stone mining and processing according to claim 1, characterized in that: A piston cylinder (42) is fixed on the flushing pipe (14). A piston plate (43) and a piston abutment rod (44) are slidably connected inside the piston cylinder (42). The piston abutment rod (44) is fixedly connected to the piston plate (43). An abutment ring (45) is provided inside the filter cylinder (10). The upper end of the piston abutment rod (44) abuts against the abutment ring (45).

10. The dust suppression device for stone mining and processing according to claim 9, characterized in that: The filter cylinder (10) has a slag discharge port (46) on one side. A sealing block (47) is provided inside the slag discharge port (46). An L-shaped bracket (48) is connected to the lower end of the sealing block (47). One end of the L-shaped bracket (48) is fixedly connected to the piston abutment rod (44). A sixth spring (49) is connected between the L-shaped bracket (48) and the filter cylinder (10).

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