Backwash adjustable spraying mechanism for dust fall of mine

Abstract

The invention relates to the technical field of sprayers, in particular to a mining backwash adjustable spraying mechanism for dust fall, comprising: a conveying water pipe, on which a loading water pipe is fixedly arranged; the atomizing spray head is connected with the loading water pipe in a sealing manner; the spray head bearing assembly is used for supporting the atomization spray head, and the atomization spray head is installed on the loading water pipe through the spray head bearing assembly; the atomization nozzle is installed on the stowage supporting ring, the atomization nozzle is installed on the conveying water pipe through the stowage supporting ring, in the actual working process, the spraying range of the atomization nozzle can be increased while the installation height of the atomization nozzle is increased, the spraying range of the atomization nozzle can be reduced while the installation height of the atomization nozzle is reduced, and different working requirements are met; the operation is simple, convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of nozzles, in particular to a backwashing adjustable spray mechanism for dust reduction in mines. Background Art

[0002] A large amount of dust is generated during the construction process of coal mines. Dust reduction is usually carried out by spraying water to purify the airflow, improve the working environment, prevent dust hazards, and protect the health of workers. The water used for dust reduction in coal mines contains certain impurities. In order to avoid clogging of the atomizing nozzle after long-term use, a filter is installed in the spray system to filter the impurities in the water. However, the filter also needs to be cleaned during use to ensure its stable and long-term use. In order to avoid the trouble of manual cleaning, the existing spray system usually uses backwashing to clean the filter, that is, water flows in reverse to remove impurities in the filter layer to restore the filtering capacity of the filter. It is very convenient and saves manpower to a great extent. However, the existing mining spray system still has certain shortcomings: its atomizing nozzle is generally fixed in the working position, and its spray range cannot be easily adjusted. That is, sometimes it is necessary to increase its installation height to increase its spray range to better capture dust, and sometimes it is necessary to lower its installation height to narrow its spray range to achieve the purpose of precise spraying, saving water and avoiding waste. Summary of the Invention

[0003] The object of the present invention is to provide a backwash adjustable spray mechanism for dust reduction in mines, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A backwash adjustable spray mechanism for dust reduction in mines comprises: a water delivery pipe on which a loading water pipe is fixedly provided; Atomizing nozzle, wherein the atomizing nozzle is sealedly connected to the water distribution pipe; A nozzle supporting assembly is used to support the atomizing nozzle and install the atomizing nozzle on the water distribution pipe through the nozzle supporting assembly; An interlocking assembly is installed on the atomizing nozzle to lock the position of the atomizing nozzle and also lock the nozzle bearing assembly to ensure the firmness of its installation; The spray range adjustment component is also installed on the atomizing nozzle, and cooperates with the nozzle bearing component to adjust the spray range of the atomizing nozzle.

[0005] Preferably, a connecting pipe is fixedly provided on the atomizing nozzle, and a pipe fitting cavity is provided on the loading water pipe; The connecting pipe is inserted into the fitting cavity to realize the sealed connection between the atomizing nozzle and the water distribution pipe.

[0006] Preferably, the nozzle bearing assembly includes: a loading support ring, and when the atomizing nozzle is installed on the loading water pipe, the loading support ring is sleeved on the loading water pipe; The movable bar is installed, and the movable bar cooperates with the loading water pipe to install the loading support ring on the loading water pipe.

[0007] Preferably, an extension protruding plate is symmetrically fixedly provided on the loading support ring, and an installation movable bar is installed on the extension protruding plate.

[0008] Preferably, the atomizing nozzle cooperates with the outer protruding plate, and the atomizing nozzle is supported by the outer protruding plate.

[0009] Preferably, the interlocking assembly comprises: a movable frame plate, the movable frame plate being mounted on the atomizing nozzle; The threaded support column is installed on the movable frame plate and cooperates with the atomizing nozzle to lock the movable frame plate.

[0010] Preferably, the movable frame plate cooperates with the installation movable bar to lock the atomizing nozzle and the installation movable bar at the same time.

[0011] Preferably, the spray range adjustment assembly includes: a driving support strip, wherein the driving support strips are two and symmetrically mounted on the atomizing nozzle; A conical adjustment sleeve, the conical adjustment sleeve being sleeved on the atomizing nozzle; Matching blocking plates, there are two matching blocking plates, which are symmetrically installed on the conical adjustment sleeve.

[0012] Preferably, the driving support strip is movably connected to the conical adjustment sleeve to drive the conical adjustment sleeve to move up and down relative to the atomizing nozzle.

[0013] Preferably, the conical adjustment sleeve increases the spray range of the atomizing nozzle when it moves upward relative to the atomizing nozzle, and decreases the spray range of the atomizing nozzle when it moves downward relative to the atomizing nozzle.

[0014] Preferably, the matching blocking plate is movably connected to the atomizing nozzle, and the conical adjustment sleeve drives the matching blocking plate to move when it moves up and down relative to the atomizing nozzle.

[0015] Compared with the prior art, the present invention has the following advantages: 1. Install the atomizing nozzle on the supporting ring, and then install the atomizing nozzle on the water delivery pipe through the supporting ring. In the actual working process, the installation height of the atomizing nozzle can be increased while increasing its spray range, or the installation height of the atomizing nozzle can be lowered while reducing its spray range, meeting different working requirements. The operation is simple, convenient and fast.

[0016] 2. When it is necessary to expand the spray range of the atomizing nozzle, pull the movable frame to unlock the atomizing nozzle, and then push the atomizing nozzle upward to move it upward, so as to increase the installation height of the atomizing nozzle. At the same time, as the atomizing nozzle moves upward, it will also drive the conical adjustment sleeve to move upward relative to the atomizing nozzle, so as to increase the spray range of the atomizing nozzle. When it is necessary to narrow the spray range of the atomizing nozzle, similarly pull the movable frame to unlock the atomizing nozzle, and then pull the atomizing nozzle downward to move it downward, to adjust the installation height of the atomizing nozzle, and as the atomizing nozzle moves downward, the conical adjustment sleeve will move downward relative to the atomizing nozzle, so as to narrow the spray range of the atomizing nozzle, thereby achieving quick adjustment.

[0017] 3. In addition, when the atomizing nozzle is in a non-working state, the matching blocking plate is closed together, which can seal the lower port of the conical adjusting sleeve, effectively preventing dust from the coal mine from entering the conical adjusting sleeve, and providing good protection for the atomizing nozzle, thereby preventing it from being blocked by external dust and impurities. When the atomizing nozzle is working, the upward movement of the conical adjusting sleeve can drive the matching blocking plate to move in opposite directions, so that the lower port of the conical adjusting sleeve is in an open state, thereby ensuring the smooth progress of atomization injection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the assembly of the atomizing nozzle and the water delivery pipe.

[0019] Figure 2 Schematic diagram of the structure of the water delivery pipe.

[0020] Figure 3 This is a first-person perspective diagram of the assembly of the atomizing nozzle and the supporting ring.

[0021] Figure 4 A second-view schematic diagram of the assembly of the atomizing nozzle and the supporting ring.

[0022] Figure 5 A third-person perspective diagram of the assembly of the atomizing nozzle and the supporting ring.

[0023] Figure 6 Schematic diagram of the structure of the atomizing nozzle.

[0024] Figure 7 This is a schematic diagram of the assembly of the load support ring.

[0025] Figure 8 This is a schematic diagram of the assembly of the atomizing nozzle.

[0026] Figure 9 It is a structural diagram of the movable frame.

[0027] Figure 10 It is a structural diagram of the tapered adjustment sleeve.

[0028] In the figure: 1. Atomizing nozzle; 11. Connecting pipe; 12. External convex bearing plate; 13. Installing bearing strip; 14. Installing support socket; 15. Connecting plate; 16. Loading top block; 17. Matching channel; 18. Frame plate; 19. Internal convex plate; 191. Moving channel; 192. Expansion slot; 2. Water delivery pipe; 21. Loading water pipe; 22. Pipe matching cavity; 23. Loading mounting block; 24. Locking cavity; 3. Loading support ring; 31. External protruding plate; 32. Connecting channel; 33. Loading vertical plate; 34. Movable through hole; 35. Limiting loading slot; 36. Lower connecting bearing plate; 37. Inclined plate frame; 4. Installing movable strip; 41. Locking plug column; 42. Anti-displacement socket; 43. Limiting load plate; 44. Movable load-bearing rod; 45. First connecting spring; 46. Inserting slot; 5. Movable frame plate; 51. Threaded through hole; 52. Threaded load column; 53. Positioning plug-in block; 54. Load-bearing plate; 55. Locking plug-in plate; 56. Matching load-bearing rod; 57. Matching end plate; 58. Second connecting spring; 6. Driving support plate strip; 61. Matching wheel; 62. Installing support rod; 63. Connecting load-bearing block; 64. First adjusting connecting rod; 7. Conical adjusting sleeve; 71. Adjusting load-bearing plate; 72. Connecting top plate; 73. Load-bearing matching rod; 8. Matching blocking plate; 81. Connecting support plate strip; 82. Moving matching hole; 83. Second adjusting connecting rod. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] The present invention provides a technical solution: like Figure 1As shown, a backwash adjustable spray mechanism for dust suppression in mines includes: a water delivery pipe 2, an atomizing nozzle 1, a nozzle bearing assembly, an interlocking assembly and a spray range adjustment assembly. A loading water pipe 21 is welded and fixed to the water delivery pipe 2, and the atomizing nozzle 1 and the loading water pipe 21 are sealed. The nozzle bearing assembly is used to support the atomizing nozzle 1, and the atomizing nozzle 1 is installed on the loading water pipe 21 through the nozzle bearing assembly. The interlocking assembly is installed on the atomizing nozzle 1 to lock the position of the atomizing nozzle 1. At the same time, the nozzle bearing assembly can also be locked to ensure its firmness of installation. The spray range adjustment assembly is also installed on the atomizing nozzle 1, and it cooperates with the nozzle bearing assembly to realize the adjustment of the spray range of the atomizing nozzle 1.

[0031] like Figure 6 As shown, a connecting pipe 11 is welded and fixed on the atomizing nozzle 1, and an outer convex supporting plate 12 is symmetrically integrally formed on the connecting pipe 11 near the end of the atomizing nozzle 1, and an installation bearing strip 13 is integrally formed on the outer convex supporting plate 12. The installation bearing strip 13 is symmetrically provided with installation support sockets 14, and a plug-in connecting plate 15 is welded and fixed to the upper end of the installation bearing strip 13, and a loading top block 16 is integrally formed on the upper end of the plug-in connecting plate 15. A matching channel 17 is provided on the loading top block 16, and a frame-type plate frame 18 is welded and fixed to the loading top block 16, and an inner supporting convex plate 19 is integrally formed on the inner side of the frame-type plate frame 18, and a movable channel 191 is provided on the inner supporting convex plate 19, and an expansion slot 192 is also provided on the inner supporting convex plate 19, and the expansion slot 192 is connected with the movable channel 191.

[0032] like Figure 1 and Figure 2 As shown, a pipe fitting cavity 22 is provided on the loading water pipe 21 , and a load-bearing mounting block 23 is symmetrically and integrally formed at the upper end of the loading water pipe 21 , and a locking insertion cavity 24 is provided on the load-bearing mounting block 23 .

[0033] The connecting pipe 11 is inserted into the pipe fitting cavity 22 to achieve a sealed connection between the atomizing nozzle 1 and the water distribution pipe 21 .

[0034] like Figure 1 and Figure 7 As shown, the nozzle bearing assembly includes: a loading support ring 3 and an installation movable bar 4. When the atomizing nozzle 1 is installed on the loading water pipe 21, the loading support ring 3 is sleeved on the loading water pipe 21, and the inner wall of the loading support ring 3 is smooth and free of burrs, and the inner wall of the loading support ring 3 is in contact with the outer end face of the loading water pipe 21.

[0035] The installation movable bar 4 cooperates with the loading water pipe 21 to install the loading support ring 3 on the loading water pipe 21. The upper end of the installation movable bar 4 is integrally formed with a locking column 41. The locking column 41 is inserted into the locking cavity 24 when fixing the loading support ring 3 on the loading water pipe 21.

[0036] The outer protruding plate 31 is symmetrically welded and fixed on the loading support ring 3, and the mounting movable bar 4 is installed on the outer protruding plate 31, and a connecting channel 32 is provided on the outer protruding plate 31. In addition, a loading vertical plate 33 is integrally formed on the end of the outer protruding plate 31 away from the loading support ring 3, and a movable through hole 34 and a limiting loading groove 35 are provided on the loading vertical plate 33. The limiting loading groove 35 is located on the upper side of the movable through hole 34. The lower end of the outer protruding plate 31 is also integrally provided with a lower connecting bearing plate 36, and an inclined panel frame 37 is integrally provided on the lower connecting bearing plate 36. The surface of the inclined panel frame 37 is smooth and has no burrs. An anti-displacement socket 42 is provided on the installation movable bar 4, and a limit load plate 43 is integrally formed on the installation movable bar 4. The limit load plate 43 is inserted in the limit load groove 35 and contacts the inner wall of the limit load groove 35. A movable load-bearing rod 44 is also welded and fixed on the installation movable bar 4. The movable load-bearing rod 44 is inserted in the movable through hole 34, and a first connecting spring 45 is sleeved on the movable load-bearing rod 44. The two ends of the first connecting spring 45 are respectively welded to the installation movable bar 4 and the loading vertical plate 33. In addition, a plug-in slot 46 is provided on the lower side of the installation movable bar 4, and the inner wall of the plug-in slot 46 is smooth and free of burrs.

[0037] like Figure 5 As shown, the atomizing nozzle 1 cooperates with the extended protruding plate 31, and the atomizing nozzle 1 is supported by the extended protruding plate 31. The plug-in connecting plate 15 is plugged into the connecting channel 32, and the loading top block 16 is located on the upper side of the extended protruding plate 31.

[0038] like Figure 8 and Figure 9 As shown, the interlocking assembly includes: a movable frame plate frame 5 and a threaded support column 52, the movable frame plate frame 5 is installed on the atomizing nozzle 1, a threaded through hole 51 is opened on the movable frame plate frame 5, and a supporting plate 54 is symmetrically welded and fixed on the movable frame plate frame 5, and a locking plug plate 55 is integrally formed on the supporting plate 54. When the atomizing nozzle 1 is not moving upward, the locking plug plate 55 is inserted in the plug-in groove 46, and a matching bearing rod 56 is also welded and fixed on the supporting plate 54, and the matching bearing rod 56 is inserted in the matching channel 17, and a matching end plate 57 is welded and fixed on the end of the matching bearing rod 56 away from the bearing plate 54. In addition, a second connecting spring 58 is sleeved on the matching bearing rod 56, and the two ends of the second connecting spring 58 are respectively welded on the matching end plate 57 and the loading top block 16.

[0039] The threaded support column 52 is installed on the movable frame 5, and cooperates with the atomizing nozzle 1 to lock the movable frame 5. The threaded support column 52 is threadedly inserted into the threaded through hole 51, and the upper end of the threaded support column 52 is integrally formed with a positioning block 53. When the positioning block 53 locks the movable frame 5, it is inserted into the expansion slot 192 and contacts the inner wall of the expansion slot 192.

[0040] The movable frame 5 cooperates with the installation movable bar 4 to lock the atomizing nozzle 1 and the installation movable bar 4 at the same time. That is, at this time, the locking plug plate 55 on the bearing plate 54 is plugged into the anti-movement plug hole 42.

[0041] like Figure 3 、 Figure 4 、 Figure 8 and Figure 10 As shown, the spray range adjustment component includes: a driving support strip 6, a conical adjustment sleeve 7 and a matching blocking plate 8. There are two driving support strips 6, which are symmetrically installed on the atomizing nozzle 1. The conical adjustment sleeve 7 is sleeved on the atomizing nozzle 1. There are two matching blocking plates 8, which are symmetrically installed on the conical adjustment sleeve 7, and the matching blocking plates 8 are located on the lower side of the conical adjustment sleeve 7.

[0042] The driving support strip 6 is movably connected to the conical adjustment sleeve 7 to drive the conical adjustment sleeve 7 to move up and down relative to the atomizing nozzle 1. A matching runner 61 is installed on the driving support strip 6, and the matching runner 61 contacts the inclined panel frame 37. The driving support strip 6 is symmetrically welded and fixed with a mounting support rod 62, which is inserted into the mounting support socket 14, and the driving support strip 6 is also symmetrically integrally provided with a connecting load block 63, and a first adjusting link 64 is hinged on the connecting load block 63. The upper end of the first adjusting link 64 is hinged with the conical adjustment sleeve 7, and an adjusting bearing plate 71 is symmetrically welded and fixed on the conical adjustment sleeve 7. The upper end of the adjusting bearing plate 71 is integrally provided with a connecting top plate 72, and the two ends of the connecting top plate 72 are respectively hinged to the first adjusting link 64. In addition, a bearing matching rod 73 is symmetrically welded and fixed on the conical adjustment sleeve 7.

[0043] When the conical adjusting sleeve 7 moves upward relative to the atomizing nozzle 1 , the spray range of the atomizing nozzle 1 is increased; when the conical adjusting sleeve 7 moves downward relative to the atomizing nozzle 1 , the spray range of the atomizing nozzle 1 is decreased.

[0044] The cooperating blocking plate 8 is movably connected to the atomizing nozzle 1. When the conical adjustment sleeve 7 moves up and down relative to the atomizing nozzle 1, it drives the cooperating blocking plate 8 to move. A connecting support plate strip 81 is integrally formed on the cooperating blocking plate 8. A movable matching hole 82 is provided on the connecting support plate strip 81. A bearing matching rod 73 is inserted into the movable matching hole 82, and the upper end of the connecting support plate strip 81 is hinged to a second adjusting link 83. The upper end of the second adjusting link 83 is hinged to the convex support plate 12.

[0045] When installing the atomizing nozzle 1, push the two installation movable bars 4 in opposite directions, and then insert the connecting pipe 11 into the pipe fitting matching cavity 22, so that the locking pins 41 on the installation movable bar 4 are aligned with the locking plug cavity 24, release the installation movable bars 4 one by one so that the locking pins 41 are inserted into the locking plug cavity 24, and the installation of the atomizing nozzle 1 is completed. At this time, the installation height of the atomizing nozzle 1 is at the lowest position, which is the position of the non-working state, and the blocking plate 8 is in a closed state. When using the atomizing nozzle 1, rotate the threaded support column 52 so that the positioning plug 53 exits the expansion slot 192, so that the movable frame plate frame 5 is in an unlocked state, and the movable frame plate frame 5 is pulled to move. When the locking plug plate 55 is withdrawn from the plug slot 46, the atomizing nozzle 1 can be unlocked, and then the atomizing nozzle 1 can be moved upward. When the locking plug plate 55 reaches the anti-movement plug hole 42 at the lower end, the atomizing nozzle 1 is in the lowest working position. In the process of moving upward, the atomizing nozzle 1 will push the driving plate strip 6 to move in the direction of connecting the connecting pipe 11 under the action of the inclined plate frame 37, so that the conical adjustment sleeve 7 will be driven to move upward relative to the atomizing nozzle 1 under the action of the first adjusting link 64. At the same time, as the conical adjustment sleeve 7 moves upward, the two matching blocking plates 8 will be driven to move back to each other under the action of the second adjusting link 83, so that the lower end of the conical adjustment sleeve 7 is in When the atomizing nozzle 1 is in the open state, and when adjusting the spray range of the atomizing nozzle 1, it is only necessary to adjust the atomizing nozzle 1 within the range of the anti-movement socket 42, that is, when the atomizing nozzle 1 moves upward, its spray height increases and the conical adjusting sleeve 7 moves upward relative to the atomizing nozzle 1, so that the distance between the nozzle of the atomizing nozzle 1 and the lower end of the conical adjusting sleeve 7 becomes smaller, thereby increasing the spray range; when the atomizing nozzle 1 moves downward, its spray height will decrease and the conical adjusting sleeve 7 will move downward under the action of its own gravity, so that the distance between the lower end of the conical adjusting sleeve 7 and the nozzle of the atomizing nozzle 1 becomes larger, so that the spray range can be reduced under the restriction of the conical adjusting sleeve 7, thereby achieving precise spraying and avoiding water resources. Waste, after the position of the atomizing nozzle 1 is adjusted, the movable frame 5 can be reset under the action of the second connecting spring 58, so that the locking plug plate 55 is plugged into the anti-movement plug hole 42, so that the atomizing nozzle 1 is fixed and the movable bar 4 is fixed at the same time, which fully ensures the firmness of the installation of the atomizing nozzle 1, and then the threaded support column 52 is rotated to make the positioning plug 53 plugged into the expansion slot 192 to fix the movable frame 5, and when the atomizing nozzle 1 is not working, the blocking plate 8 is used to seal the lower port of the conical adjustment sleeve 7 to avoid the dust and impurities in the coal mine site from clogging the atomizing nozzle 1, and the installation and removal of the atomizing nozzle 1 is also very convenient.

[0046] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A backwash adjustable spray mechanism for dust suppression in mines, characterized by: include: A water delivery pipe, on which a loading water pipe is fixedly provided; Atomizing nozzle, wherein the atomizing nozzle is sealedly connected to the water distribution pipe; A nozzle supporting assembly is used to support the atomizing nozzle and install the atomizing nozzle on the water distribution pipe through the nozzle supporting assembly; An interlocking assembly is installed on the atomizing nozzle to lock the position of the atomizing nozzle and also lock the nozzle bearing assembly to ensure the firmness of its installation; The spray range adjustment component is also installed on the atomizing nozzle, and cooperates with the nozzle bearing component to adjust the spray range of the atomizing nozzle.

2. The adjustable backwash spray mechanism for dust suppression in mining according to claim 1, characterized in that: The atomizing nozzle is fixedly provided with a connecting pipe, and the distribution water pipe is provided with a pipe fitting cavity; The connecting pipe is inserted into the fitting cavity to realize the sealed connection between the atomizing nozzle and the water distribution pipe.

3. The adjustable backwash spray mechanism for dust suppression in mining according to claim 2, characterized in that: The nozzle bearing assembly includes: a loading support ring, when the atomizing nozzle is installed on the loading water pipe, the loading support ring is sleeved on the loading water pipe; The movable bar is installed, and the movable bar cooperates with the loading water pipe to install the loading support ring on the loading water pipe.

4. The adjustable backwash spray mechanism for dust suppression in mining according to claim 3, characterized in that: The load supporting ring is symmetrically and fixedly provided with an extension protruding plate, and the extension protruding plate is installed with an installation movable bar.

5. The adjustable backwash spray mechanism for dust suppression in mining according to claim 4, characterized in that: The atomizing nozzle is matched with the outer protruding plate, and the atomizing nozzle is supported by the outer protruding plate.

6. The adjustable backwash spray mechanism for dust suppression in mining according to claim 5, characterized in that: The interlocking assembly includes: a movable frame plate frame, the movable frame plate frame is installed on the atomizing nozzle; The threaded support column is installed on the movable frame plate and cooperates with the atomizing nozzle to lock the movable frame plate.

7. The adjustable backwash spray mechanism for dust suppression in mining according to claim 6, characterized in that: The movable frame plate is matched with the installation movable bar to lock the atomizing nozzle and the installation movable bar at the same time.

8. The adjustable backwash spray mechanism for dust suppression in mining according to claim 7, characterized in that: The spray range adjustment assembly includes: a driving support strip, wherein the driving support strips are two and are symmetrically mounted on the atomizing nozzle; A conical adjustment sleeve, the conical adjustment sleeve being sleeved on the atomizing nozzle; Matching blocking plates, there are two matching blocking plates, which are symmetrically installed on the conical adjustment sleeve.

9. The adjustable backwash spray mechanism for dust suppression in mining according to claim 8, characterized in that: The driving bearing strip is movably connected to the conical adjustment sleeve to drive the conical adjustment sleeve to move up and down relative to the atomizing nozzle.

10. The backwash adjustable spray mechanism for dust suppression in mines according to claim 9, characterized in that: When the conical adjusting sleeve moves upward relative to the atomizing nozzle, the spray range of the atomizing nozzle is increased; when the conical adjusting sleeve moves downward relative to the atomizing nozzle, the spray range of the atomizing nozzle is decreased.

11. The adjustable backwash spray mechanism for dust suppression in mining according to claim 10, characterized in that: The matching blocking plate is movably connected to the atomizing nozzle, and when the conical adjustment sleeve moves up and down relative to the atomizing nozzle, it drives the matching blocking plate to move.

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