An intelligent spray dust suppression device for fully mechanized mining working face

Abstract

The present invention discloses an intelligent spray dust suppression device for a fully mechanized mining working face, comprising a coal mining assembly and a plurality of hydraulic supports arranged opposite to the coal mining assembly. A spray mechanism is provided at the lower end of the hydraulic support, and the spray mechanism is provided with a spray head, a fixed plate, a mounting plate, and a retaining assembly symmetrically arranged on both sides of the mounting plate. The retaining assembly comprises a hinge, a first elastic member, a retaining member, and a second elastic member. The intelligent spray dust suppression device for a fully mechanized mining working face softly positions the spray head through the retaining assembly, ensuring that the hydraulic support will not affect the spray head when it needs to be moved, and ensuring that its position is not offset. In addition, the position of the spray head is limited by the first elastic member, the retaining member, and the second elastic member, which can facilitate timely disassembly and maintenance by the staff, and the entire spray mechanism can be disassembled in conjunction with the fixed plate and the mounting plate, thereby reducing the working time in the coal mine and improving the working efficiency of the staff on the spray mechanism.

Description

Technical Field

[0001] The present invention relates to coal mine dust removal technology, in particular to an intelligent spray dust reduction device for a fully mechanized mining working face. Background Art

[0002] The dust in the fully mechanized mining face mainly comes from the shearer drum cutting coal. Due to the large cross-section of the fully mechanized mining face and the high wind speed, the dust generated by the shearer drum cutting coal will quickly spread to the pedestrian side under the wind flow, seriously affecting the environmental quality of the area where people move. The current coal mining machine intelligent spray control and dust reduction spray device is to place the spray on the chute baffle, and use the intelligent dust source tracking system to achieve the positioning of the front and rear drums of the coal mining machine, so as to achieve the envelope coverage of the dust source of the coal mining machine drum and achieve the effect of dust control. This device achieves the greatest possible proximity to the dust source and is simple and easy to install. However, in order to achieve the best dust control effect while maximizing economy and resource utilization, it is necessary to clearly understand the key matching parameters of the coal mining machine intelligent spray control and dust reduction.

[0003] CN214063020U discloses a coal machine-linked spray system for a fully mechanized coal mining face. This system incorporates a spray device at the lower end of a hydraulic support. While this spray device effectively prevents the spread of coal dust during mining, its typical fixing method compromises its effectiveness. The hydraulic support's need to move generates vibration, and the operating environment is poor, making it difficult to secure with rigid means such as bolts. Furthermore, the dust removal devices described in CN215927450U, CN212803320U, and CN211258698U, while effective during coal mining, are bulky and inconvenient to install. Summary of the Invention

[0004] In order to solve the defects of the above-mentioned prior art, the present invention proposes an intelligent spray dust reduction device for fully mechanized mining working face.

[0005] The technical solution of the present invention is achieved as follows:

[0006] An intelligent spray dust suppression device for a fully mechanized mining working face, characterized by comprising:

[0007] coal mining assembly;

[0008] A plurality of hydraulic supports are arranged opposite to the coal mining assembly, wherein a spray mechanism is provided at the lower end of each hydraulic support, wherein the spray mechanism comprises a spray head, a fixed plate, a mounting plate, and holding components symmetrically arranged on both sides of the mounting plate, wherein the holding components are hinged to both sides of the mounting plate via hinged rods, wherein the fixed plate is mounted on the hydraulic support, wherein the mounting plate is docked and inserted with the fixed plate for installation, wherein a rotating member is provided on the mounting plate, wherein a rotating hole is provided in the middle of the rotating member, and a bolt is provided in the rotating hole;

[0009] A guide groove and a movable area for accommodating the rotating member are provided in the middle of the fixed plate. The movable area is connected to the guide groove. The rotating member enters the movable area through the guide groove and is restricted to the connection between the movable area and the guide groove after the rotating member rotates.

[0010] The retaining assembly includes:

[0011] The hinged parts are symmetrically arranged, the upper ends of the hinged parts are hinged to the mounting plate through the hinged rods, the middle of the hinged parts forms a mounting space, and the hinged parts form a mounting area between the hinged parts;

[0012] a first elastic member for applying pressure to the spray head, the first elastic member being disposed in the mounting area, with both ends of the first elastic member respectively disposed in the mounting spaces on both sides, and both ends of the first elastic member being disposed in the mounting spaces via first positioning columns;

[0013] A retaining member for limiting the position of the spray head, the retaining member being symmetrically arranged in the installation area and being arranged in the installation space via a second positioning column;

[0014] The second elastic member is used to wrap the outer wall of the spray head. The second elastic member is arranged in the installation area. The second elastic member is arranged at the lower end of the retaining member. Both ends of the second elastic member are arranged in the installation space through the retaining block.

[0015] In the present invention, the spray head consists of a water storage pipe and a connecting pipe. The outer wall of the water storage pipe is provided with multiple first nozzles, both sides of the water storage pipe are provided with second nozzles, and the connecting pipe is provided with a water inlet pipe.

[0016] In the present invention, the retaining member is provided with a bearing surface, a contact surface, a guide slope and a blocking surface, step grooves are formed on both sides of the contact surface, and a guide area is formed between the guide slopes, and the maximum width of the guide area is greater than the diameter of the water storage pipe.

[0017] In the present invention, a positioning hole is provided on the bearing surface, and a positioning block that matches the positioning hole is provided on the outer wall of the water storage pipe.

[0018] In the present invention, the first elastic member is arranged in a strip shape, and a first elastic section and a second elastic section are formed on the first elastic member. The first elastic section is located at the lower end of the second elastic section. An elastic area is formed between the first elastic section and the second elastic section, and a retaining area is formed between the first elastic member and the retaining member.

[0019] In the present invention, a third elastic section and a fixed section are formed on the second elastic member. The fixed sections are located at both ends of the third elastic section. The fixed sections are restricted in the installation space by the retaining blocks. A strip hole is formed between the third elastic sections.

[0020] In the present invention, a sliding groove is provided on the fixed plate, and the sliding groove consists of a first slide and a second slide. The inner diameter of the first slide is larger than the inner diameter of the second slide. A stop block is provided on the side of the first slide away from the second slide. A spring and a push plate are provided in the first slide. The push plate is arranged at the connection between the first slide and the second slide. A sliding block that cooperates with the sliding groove is provided on the mounting plate.

[0021] In the present invention, stop angles are formed at the four corners of the rotating part. The rotating part is arranged in a rectangular shape as a whole, and a recess recessed toward the middle is formed on the narrow side. A symmetrically arranged guide slope is provided in the recess. A first ridge line is formed on the stop angle, and a second ridge line is formed between the symmetrically arranged guide slopes.

[0022] In the present invention, a first avoidance chamber, a second avoidance chamber and a third avoidance chamber are provided in the activity area, the first avoidance chamber is connected to the guide groove through a limiting surface, the third avoidance chamber is arranged opposite to the first avoidance chamber, and the second avoidance chamber is arranged between the first avoidance chamber and the third avoidance chamber.

[0023] In the present invention, a first pushing surface is provided in the first escape chamber, and a second pushing surface is provided in the second escape chamber.

[0024] In the present invention, the connection between the limiting surface and the first avoidance chamber forms a third ridge line, the connection between the first pushing surface and the second pushing surface forms a fourth ridge line, the connection between the guide groove and the third avoidance chamber forms a fifth ridge line, and the connection between the second avoidance chamber and the third avoidance chamber forms a sixth ridge line. The distance between the center line of the rotating hole and the first ridge line is H1, and the distance between the center line of the rotating hole and the sixth ridge line is H2, and H1<H2.

[0025] The intelligent spray dust suppression device for fully mechanized mining working faces implemented in this invention has the following beneficial effects: The device softly positions the spray head through a retaining assembly, ensuring that the hydraulic support does not affect the spray head when needed, ensuring its position is not shifted. Furthermore, the first elastic member, retaining member, and second elastic member constrain the position of the spray head, facilitating timely disassembly and maintenance by workers. The entire spray mechanism can be disassembled using a fixing plate and mounting plate, reducing working time within the coal mine and improving worker efficiency in operating the spray mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic structural diagram of the intelligent spray dust suppression device for fully mechanized mining working face of the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the spray mechanism structure;

[0028] Figure 3 for Figure 2 Right view;

[0029] Figure 4 for Figure 2 The main view;

[0030] Figure 5 for Figure 2 The exploded view of the component structure is maintained;

[0031] Figure 6 for Figure 5 Schematic diagram of the retaining structure in FIG;

[0032] Figure 7 for Figure 2 Schematic diagram of the mounting plate structure;

[0033] Figure 8 for Figure 2 Schematic diagram of the fixed plate structure;

[0034] Figure 9 for Figure 8 A structural perspective view from another direction;

[0035] Figure 10 A perspective view of the structure of the fixed plate and the rotating member in the present invention;

[0036] Figure 11 for Figure 10 A schematic diagram of a first state of the rotating member;

[0037] Figure 12 for Figure 10 A schematic diagram of the second state of the middle rotating member;

[0038] Figure 13 for Figure 10 Schematic diagram of the third state of the rotating part.

[0039] In the figure: coal mining assembly 1, hydraulic support 2, conveying mechanism 3, base 4, top beam 5, column 6, shield beam 7, movable side guard plate 8, connecting rod 9, pushing device 10, guard device 11, spray mechanism 12, spray head 13, fixing plate 14, mounting plate 15, holding assembly 16, hinged rod 17, rotating member 18, rotating hole 19, bolt 20, guide groove 21, movable area 22, water inlet pipe 23, sliding groove 24, first slide 25, second slide 26, stopper 27, spring 28, push plate 29, sliding block 30, stop angle 31, notch 32, guide slope 33, first ridge line 34, second ridge line 35, first avoidance chamber 36, second avoidance chamber 37, third avoidance chamber 38, limit surface 39, First pushing surface 40, second pushing surface 41, third ridge line 42, fourth ridge line 43, fifth ridge line 44, sixth ridge line 45, first elastic member 46, second elastic member 47, hinge member 48, retaining member 49, hinge plate 50, installation space 51, installation area 52, first positioning column 53, first elastic section 54, second elastic section 55, elastic area 56, retaining area 57, second positioning column 58, bearing surface 59, contact surface 60, guide slope 61, blocking surface 62, stepped groove 63, guide area 64, water storage pipe 65, positioning hole 66, positioning block 67, retaining block 68, third elastic section 69, fixed section 70, strip hole 71, connecting pipe 72, first nozzle 73, second nozzle 74. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0041] like Figures 1 to 13 As shown, the intelligent spray dust suppression device for the fully mechanized mining working face of the present invention comprises a coal mining assembly 1 and a plurality of hydraulic supports 2. The coal mining assembly 1 mines the coal in the coal mine during movement and transports it through a conveying mechanism 3. The hydraulic supports 2 are arranged at the opposite ends of the coal mining assembly 1 to support the mine tunnel and realize movement at the same time, and spray water on the coal mining assembly 1 and the conveying mechanism 3 to achieve a dust removal effect. Example 1

[0042] Several hydraulic supports 2 are arranged opposite to the coal mining assembly 1. The hydraulic supports 2 are provided with a base 4, a top beam 5, a column 6, a protective beam 7, a movable side guard plate 8, a connecting rod 9, a pushing device 10 and a side guard device 11. The base 4 is set on the ground, the column 6 is set on the base 4, the top beam 5 is set on the column 6, the side guard device 11 is set at the front end of the top beam 5, the protective beam 7 is set at the rear end of the top beam 5, and the movable side guard plate 8 is set on the base 4 through the connecting rod 9, and the upper end is kept connected to the protective beam 7.

[0043] A spray mechanism 12 is provided at the lower end of the hydraulic support 2, and the spray mechanism 12 is arranged at the lower end of the top beam 5. A spray head 13, a fixing plate 14, a mounting plate 15 and a retaining assembly 16 symmetrically arranged on both sides of the mounting plate 15 are provided in the spray mechanism 12. The fixing plate 14 can be directly fixed to the lower end of the top beam 5 to remain integrated with the top beam 5. Example 2

[0044] The retaining assembly 16 is hinged on both sides of the mounting plate 15 through a hinge rod 17. The fixed plate 14 is installed on the hydraulic support 2. The mounting plate 15 is docked and inserted with the fixed plate 14 for installation. A rotating part 18 is provided on the mounting plate 15. A rotating hole 19 is provided in the middle of the rotating part 18. A bolt 20 is provided in the rotating hole 19.

[0045] A guide groove 21 and a movable area 22 for accommodating the rotating member 18 are provided in the middle of the fixed plate 14. The movable area 22 is connected to the guide groove 21. The rotating member 18 enters the movable area 22 through the guide groove 21 and is kept restricted at the connection between the movable area 22 and the guide groove 21 after the rotating member 18 rotates.

[0046] The fixed plate 14 is provided with a sliding groove 24, which is composed of a first slide 25 and a second slide 26. The inner diameter of the first slide 25 is larger than the inner diameter of the second slide 26. A stopper 27 is provided on the side of the first slide 25 away from the second slide 26. The stopper 27 is used to block one end of the first slide 25. A spring 28 and a push plate 29 are provided in the first slide 25. The stopper 27 is used to block the spring 28, so that the spring 28 can be compressed and deformed after being subjected to force, thereby storing elastic potential energy. The push plate 29 is pushed by the sliding block 30, which compresses the spring 28. The push plate 29 is set at the connection between the first slide 25 and the second slide 26. The mounting plate 15 is provided with a sliding block 30 that cooperates with the sliding groove 24.

[0047] Since the push plate 29 is disposed in the first slideway 25 but at the junction of the first slideway 25 and the second slideway 26, the diameter of the push plate 29 is larger than the inner diameter of the second slideway 26. After the sliding block 30 enters the second slideway 26, it can be positioned by the second slideway 26, and then when it enters the first slideway 25, it can push the push plate 29.

[0048] The rotating member 18 can cooperate with the movable area 22 in the fixed plate 14. When the rotating member 18 rotates to a point where it is not parallel to the guide groove 21, the rotating member 18 cannot be removed from the guide groove 21 and will be blocked by the guide groove 21, thereby connecting the mounting plate 15 and the fixed plate 14. As a result, the entire spray mechanism 12 is set at the lower end of the top beam 5, which is convenient for operators to disassemble and assemble. The cooperation between the rotating member 18 and the movable area 22 can reduce the operating time of operators in the mine. The environment in the mine is complex and there are many mechanical equipment. The convenient and fast structure can reduce the labor intensity of operators. As the auxiliary disassembly and assembly does not require special tools, it can facilitate rapid operation in the mine and realize the disassembly, replacement and maintenance of the spray mechanism 12.

[0049] The four corners of the rotating member 18 form stop angles 31. The rotating member 18 is generally rectangular in shape, having long and narrow sides. A recess 32 is formed in the narrow side, and symmetrically arranged guide slopes 33 are provided within the recess 32. A first ridgeline 34 is formed on the stop angle 31, and a second ridgeline 35 is formed between the symmetrically arranged guide slopes 33.

[0050] The active area 22 is connected to the outside through the guide groove 21, thereby facilitating the insertion of the rotating member 18 from the guide groove 21 into the active area 22. A first escape chamber 36, a second escape chamber 37, and a third escape chamber 38 are provided within the active area 22. The first escape chamber 36 is connected to the guide groove 21 via a limiting surface 39. The third escape chamber 38 is located opposite the first escape chamber 36, and the second escape chamber 37 is located between the first escape chamber 36 and the third escape chamber 38. The width of the guide groove 21 matches the width of the rotating member 18, allowing the rotating member 18 to move freely therein. However, the length of the rotating member 18 is greater than the width of the guide groove 21. When the rotating member 18 rotates, it will be blocked by the guide groove 21, thereby restricting the movement of the mounting plate 15.

[0051] A first pushing surface 40 is provided within the first escape chamber 36, and a second pushing surface 41 is provided within the second escape chamber 37. The first pushing surface 40 and the second pushing surface 41 are used to push the rotating member 18 once it has entered the active region 22, causing it to deflect, thereby changing from being parallel to the guide groove 21 to being non-parallel to the guide groove 21. When the rotating member 18 is parallel to the guide groove 21, it is not obstructed by the connection between the guide groove 21 and the active region 22, allowing the rotating member 18 to move unimpeded within the guide groove 21. Of course, the rotating member 18 cannot be used to position the mounting plate 15.

[0052] like Figure 9As shown, the connection between the limiting surface 39 and the first avoidance chamber 36 forms a third ridgeline 42, the connection between the first pushing surface 40 and the second pushing surface 41 forms a fourth ridgeline 43, the connection between the guide groove 21 and the third avoidance chamber 38 forms a fifth ridgeline 44, and the connection between the second avoidance chamber 37 and the third avoidance chamber 38 forms a sixth ridgeline 45. The distance between the centerline of the rotating hole 19 and the first ridgeline 34 is H1, and the distance between the centerline of the rotating hole 19 and the sixth ridgeline 45 is H2, where H1<H2.

[0053] like Figure 10 As shown, the rotating member 18 at this time is directly inserted into the guide groove 21, and through the correspondence between the rotating member 18 and the guide groove 21, the mounting plate 15 is pushed to drive the rotating member 18 into the guide groove 21. The state of the rotating member 18 is parallel to the guide groove 21. A blocking angle 31 of the rotating member 18 contacts the first push surface 40 and is blocked by the first push surface 40. Since the middle of the rotating member 18 is set on the bolt 20 and can rotate on the bolt 20. A blocking angle 31 of the rotating member 18 is blocked by the first push surface 40, causing it to rotate, and the first push surface 40 is in an inclined setting, which can allow the fourth edge line 43 to enter the recess 32, keep the rotating member 18 rotating, and make the rotating member 18 rotate to the third avoidance chamber 38 at one end close to the guide groove 21. The state after rotation is as shown in FIG. Figure 11 As shown, under the push of the spring 28, the sliding block 30 is pushed to move toward the guide groove 21. Since the angle of the rotating part 18 has been deflected at this time and is no longer parallel to the guide groove 21, it will be restricted by the limiting surface 39 and the fifth edge line 44, thereby realizing the positioning of the mounting plate 15 and the fixed plate 14.

[0054] like Figure 12 and 13As shown, when the operator needs to remove the mounting plate 15 and the retaining assembly 16, the mounting plate 15 can be pushed again, compressing the spring 28. The mounting plate 15 then drives the rotating member 18 toward the second escape chamber 37, causing the first pushing surface 40 to once again block the rotating member 18. Since the rotating member 18 is not aligned with the guide groove 21, it is tilted. One of the blocking corners 31 of the rotating member 18 is blocked by the first pushing surface 40, causing the rotating member 18 to rotate about the bolt 20, maintaining the blocking corner 31 within the third escape chamber 38 and rotating into the second escape chamber 37. After rotation, the rotating member 18 enters the second escape chamber 37 and is blocked by the second pushing surface 41. At this point, it is not yet parallel to the guide groove 21. At this time, the external force pressing on the mounting plate 15 is released, and the mounting plate 15 can be pushed by the elastic potential energy stored in the spring 28, so that the rotating part 18 contacts the limiting surface 39. Under the guidance of the inclined limiting surface 39, the rotating part 18 gradually swings and finally becomes parallel to the guide groove 21 again, and can be moved out of the guide groove 21 to realize the removal of the mounting plate 15.

[0055] Retaining assembly 16 provides a flexible connection with spray head 13, protecting spray head 13, reducing disassembly effort, and increasing service life. Its first and second elastic members 46 and 47 are made of a resilient rubber material. Coal mining in mines generates a large amount of particulate dust and dust-reducing spray. Using a fixed structure such as bolts 20 can lead to rust over time and be difficult to disassemble, shortening service life. Example 3

[0056] The retaining assembly 16 includes a hinge 48, a first elastic member 46, a retaining member 49, and a second elastic member 47. The hinge 48 is composed of symmetrically arranged hinge plates 50, with a mounting space 51 formed between the hinge plates 50. The upper ends of the hinges 48 are hinged to the mounting plate 15 via the hinge rod 17, forming a mounting area 52 between the hinges 48.

[0057] The first elastic member 46 is used to apply pressure to the spray head 13 and is disposed in the mounting area 52. The two ends of the first elastic member 46 are disposed within the mounting spaces 51 on either side, and the two ends of the first elastic member 46 are secured within the mounting spaces 51 by first positioning posts 53. The first elastic member 46 is strip-shaped, with a first elastic section 54 and a second elastic section 55 formed thereon. The first elastic section 54 is located below the second elastic section 55, forming an elastic region 56 between the first elastic section 54 and the second elastic section 55. A retaining region 57 is formed between the first elastic member 46 and the retaining member 49.

[0058] A retaining member 49 is provided for limiting the position of the spray head 13. The retaining member 49 is symmetrically arranged within the installation area 52 and is positioned within the installation space 51 via a second positioning post 58. The retaining member 49 is provided with a bearing surface 59, a contact surface 60, a guide slope 61, and a blocking surface 62. Stepped grooves 63 are formed on either side of the contact surface 60, and a guide area 64 is formed between the guide slopes 61. The maximum width of the guide area 64 is greater than the diameter of the water storage pipe 65. A positioning hole 66 is provided on the bearing surface 59, and a positioning block 67 is provided on the outer wall of the water storage pipe 65 to cooperate with the positioning hole 66. The positioning block 67 and the positioning hole 66 can limit the position of the spray head 13 and keep it stationary. Under the pressure of the first elastic member 46, the positioning block 67 and the positioning hole 66 can achieve stable docking.

[0059] The second elastic member 47 is used to wrap around the outer wall of the spray head 13. The second elastic member 47 is disposed within the mounting area 52 and is disposed at the lower end of the retaining member 49. The two ends of the second elastic member 47 are disposed within the mounting space 51 via retaining blocks 68. A third elastic segment 69 and a fixed segment 70 are formed on the second elastic member 47. The fixed segments 70 are located at both ends of the third elastic segment 69. The fixed segments 70 are restrained within the mounting space 51 by the retaining blocks 68. A strip hole 71 is formed between the third elastic segments 69. The strip hole 71 is used to accommodate the positioning block 67, allowing the positioning block 67 to pass through the strip hole 71 and enter the positioning hole 66. Example 4

[0060] The spray head 13 consists of a water storage pipe 65 and a connecting pipe 72. A plurality of first nozzles 73 are provided on the outer wall of the water storage pipe 65. The first nozzles 73 can spray and dust the coal stone being mined. Second nozzles 74 are provided on both sides of the water storage pipe 65. The second nozzles 74 can spray the conveying mechanism 3 at the lower end. A water inlet pipe 23 is provided on the connecting pipe 72.

[0061] During installation, simply push the spray head 13 in the direction of F1, causing the hinge 48 to rotate and expand, stretching the first and second elastic members 46 and 47. The retaining member 49 then rotates and expands. The water pipe 65 pushes the second elastic member 47, applying force to it, keeping the third elastic segment 69 within the stepped groove 63. The middle of the third elastic segment 69 wraps around the outer wall of the water pipe 65. Finally, it reaches the upper end of the retaining member 49 and pushes the first elastic member 46, causing it to deform under force. Finally, the water pipe 65 is confined within the retaining area 57, and the positioning block 67 is inserted into the positioning hole 66.

[0062] At this time, the water storage pipe 65 is kept in place by the pressure of the first elastic member 46 and the pulling force of the second elastic member 47, and the first elastic member 46 and the second elastic member 47 pull the hinges 48 on both sides to reset, and at the same time cooperate with the docking of the positioning block 67 and the positioning hole 66 to keep the water storage pipe 65 in place, which can improve the stability of the installation of the entire spray head 13.

[0063] When removing the spray head 13, first push the spray head 13 upward to disengage the positioning block 67 from the positioning hole 66, then unfold the hinge 48 to both sides and take the spray head 13 out from the middle.

[0064] Of course, to facilitate disassembly, one hinge 48 in the retaining assembly 16 can be fixed so that it cannot rotate, while the other hinge 48 can rotate. During disassembly and installation, the rotatable hinge 48 is opened and rotated to install the spray head 13 on the retaining member 49. The second elastic member 47 keeps the spray head 13 from directly contacting the retaining member 49, thereby preventing vibration and friction generated by the movement of the hydraulic support 2 from directly acting between the retaining member 49 and the spray head 13, thereby increasing the service life of the spray head 13.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent spray dust suppression device for fully mechanized mining working face, characterized in that: include: coal mining assembly; A plurality of hydraulic supports are arranged opposite to the coal mining assembly, wherein a spray mechanism is provided at the lower end of each hydraulic support, wherein the spray mechanism comprises a spray head, a fixed plate, a mounting plate, and holding components symmetrically arranged on both sides of the mounting plate, wherein the holding components are hinged to both sides of the mounting plate via hinged rods, wherein the fixed plate is mounted on the hydraulic support, wherein the mounting plate is docked and inserted with the fixed plate for installation, wherein a rotating member is provided on the mounting plate, wherein a rotating hole is provided in the middle of the rotating member, and a bolt is provided in the rotating hole; A guide groove and a movable area for accommodating the rotating member are provided in the middle of the fixed plate. The movable area is connected to the guide groove. The rotating member enters the movable area through the guide groove and is restricted to the connection between the movable area and the guide groove after the rotating member rotates. The retaining assembly includes: The hinged parts are symmetrically arranged, the upper ends of the hinged parts are hinged to the mounting plate through the hinged rods, the middle of the hinged parts forms a mounting space, and the hinged parts form a mounting area between the hinged parts; a first elastic member for applying pressure to the spray head, the first elastic member being disposed in the mounting area, with both ends of the first elastic member respectively disposed in the mounting spaces on both sides, and both ends of the first elastic member being disposed in the mounting spaces via first positioning columns; A retaining member for limiting the position of the spray head, the retaining member being symmetrically arranged in the installation area and being arranged in the installation space via a second positioning column; a second elastic member for wrapping the outer wall of the spray head, the second elastic member being arranged in the installation area, the second elastic member being arranged at the lower end of the retaining member, and both ends of the second elastic member being arranged in the installation space through retaining blocks; The spray head is composed of a water storage pipe and a connecting pipe. A plurality of first nozzles are provided on the outer wall of the water storage pipe, second nozzles are provided on both sides of the water storage pipe, and a water inlet pipe is provided on the connecting pipe. The retaining member is provided with a bearing surface, a contact surface, a guide inclined surface and a blocking surface, a stepped groove is formed on both sides of the contact surface, a guide area is formed between the guide inclined surfaces, and the maximum width of the guide area is greater than the diameter of the water storage pipe; The bearing surface is provided with a positioning hole, and the outer wall of the water storage pipe is provided with a positioning block that matches the positioning hole; The first elastic member is arranged in a strip shape, and a first elastic section and a second elastic section are formed on the first elastic member. The first elastic section is located at the lower end of the second elastic section. An elastic area is formed between the first elastic section and the second elastic section. A retaining area is formed between the first elastic member and the retaining member. A third elastic section and a fixed section are formed on the second elastic member. The fixed sections are located at both ends of the third elastic section. The fixed sections are restricted in the installation space by the retaining blocks. A strip hole is formed between the third elastic sections.

2. The intelligent spray dust suppression device for fully mechanized mining working face according to claim 1 is characterized in that: A sliding groove is provided on the fixed plate, and the sliding groove consists of a first slide and a second slide. The inner diameter of the first slide is larger than the inner diameter of the second slide. A stop block is provided on the side of the first slide away from the second slide. A spring and a push plate are provided in the first slide. The push plate is arranged at the connection between the first slide and the second slide. A sliding block that cooperates with the sliding groove is provided on the mounting plate.

3. The intelligent spray dust suppression device for fully mechanized mining working face according to claim 1 is characterized in that: The four corners of the rotating part form stop angles. The rotating part is arranged in a rectangular shape as a whole, and a recessed recessed toward the middle is formed on the narrow side. Symmetrically arranged guide slopes are provided in the recess. A first ridge line is formed on the stop angle, and a second ridge line is formed between the symmetrically arranged guide slopes.

4. The intelligent spray dust suppression device for fully mechanized mining working face according to claim 3 is characterized in that: A first avoidance chamber, a second avoidance chamber and a third avoidance chamber are provided in the activity area. The first avoidance chamber is connected to the guide groove through a limiting surface. The third avoidance chamber is arranged opposite to the first avoidance chamber. The second avoidance chamber is arranged between the first avoidance chamber and the third avoidance chamber.

5. The intelligent spray dust suppression device for fully mechanized mining working face according to claim 4 is characterized in that: A first pushing surface is provided in the first avoidance chamber, and a second pushing surface is provided in the second avoidance chamber.

6. The intelligent spray dust suppression device for fully mechanized mining working face according to claim 5 is characterized in that: The connection between the limiting surface and the first avoidance chamber forms a third ridge line, the connection between the first pushing surface and the second pushing surface forms a fourth ridge line, the connection between the guide groove and the third avoidance chamber forms a fifth ridge line, and the connection between the second avoidance chamber and the third avoidance chamber forms a sixth ridge line. The distance between the center line of the rotating hole and the first ridge line is H1, and the distance between the center line of the rotating hole and the sixth ridge line is H2, and H1<H2.

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