High-altitude spraying comprehensive dust falling system for dustproof sky screen

Abstract

The invention belongs to the technical field of construction environmental protection equipment and facilities, and provides a dustproof sky curtain high-altitude spraying comprehensive dust falling system which comprises a sky curtain system, a foundation pit supporting system, a water curtain system and a tensile buffering unit. Each supporting unit is provided with a set of sky curtain system and a set of water curtain system; a plurality of tensile buffering devices are arranged between every two adjacent supporting units, the two sides of each tensile buffering device are connected with the sky curtain system through spring hooks, and the water curtain system comprises a high-pressure spraying dust-settling humidifier, a connecting pipe, a main pipe, a branch pipe opening and a plate-strip-shaped spraying pipe distributed close to the upper surface of the dense-mesh screen. A plurality of spray joints are nested on the plate-strip-shaped spray pipe, each spray joint comprises two spray faucets, and each spray faucet is provided with at least one nozzle. The device is reasonable in design, beneficial to improving the dust prevention and dust falling efficiency, high in safety and environmental protection performance, long in comprehensive service life and suitable for large-scale popularization.

Description

Technical Field

[0001] This invention belongs to the technical field of construction environmental protection equipment and facilities, and in particular relates to a dust suppression system with a high-altitude spray system. Background Technology

[0002] In housing construction projects, foundation pit construction often generates significant amounts of dust. Traditional dust control measures are typically employed, such as covering bare soil with dust-proof netting, mobile mist cannons, and spraying around the foundation pit and project perimeter. However, in urban centers and areas near schools, hospitals, and residential buildings with strict dust control requirements, these traditional measures are ineffective, resulting in low efficiency, significantly delaying construction, and negatively impacting the surrounding environment.

[0003] Currently, dustproof canopies are generally used in subway projects. For example, Chinese utility model patent CN217399657U discloses a dustproof and noise-reducing canopy structure for subway station foundation pits. This dustproof canopy can fully cover the foundation pit, achieving functions such as dust prevention, noise reduction, sun shading, and cooling. However, the most significant characteristic of subway foundation pits is their long length, while the width span of foundation pits in other construction projects is at least twice that of subway foundation pits. Therefore, it is necessary to consider whether the dustproof canopy can completely cover the foundation pit after actual construction. Furthermore, the sprinkler system used in foundation pit projects also suffers from poor spraying effect. Common issues include the limited spray range of the foundation pit enclosure, resulting in insufficient spraying and difficulty in achieving full coverage for foundation pits with large length and width spans. When using pipe spraying, the spraying height must be maintained at a corresponding height with the canopy. Although the spraying area is effectively increased, its stability and reliability are significantly compromised. Using mobile fog cannons requires a large increase in manpower and vehicles, and significantly increases the operational risks during construction. Summary of the Invention

[0004] This invention addresses the environmental problems existing in the construction of foundation pit projects by proposing a well-designed, efficient, safe, and environmentally friendly dust suppression system with a high-altitude spray system.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The dust suppression system provided by the present invention includes a canopy system, which is installed on a foundation pit support system. The canopy system includes several wire ropes, dense mesh netting, spring hooks, expansion bolts, and rope clamps. The foundation pit support system includes multiple support units arranged side by side, each support unit being equipped with a canopy system and a water curtain system. Multiple tensile buffer devices are installed between adjacent support units, and both sides of the tensile buffer devices are connected to the canopy system via spring hooks. The water curtain system includes a high-pressure spray dust suppression humidifier. A connecting pipe is installed on the high-pressure spray dust suppression humidifier. A main pipe is installed at the output end of the connecting pipe. Multiple branch pipes are installed on the main pipe. The water outlet of each branch pipe is equipped with a strip-shaped spray pipe distributed near the upper surface of the mesh screen. Multiple spray connectors are nested on the strip-shaped spray pipe and spaced apart along its length. Each spray connector includes two upward-facing spray nozzles facing opposite directions. Each spray nozzle has at least one spray hole communicating with the strip-shaped spray pipe, and the spray hole is used to install a nozzle.

[0006] Preferably, the dense mesh netting includes a first dense mesh netting and a second dense mesh netting distributed at intervals. The first dense mesh netting is provided with an inverted T-shaped connecting strip, and the connecting strip is provided with a plurality of connecting holes distributed at intervals along its length. The second dense mesh netting is connected to the connecting strip via spring hooks. The wire rope includes a fixed wire rope, and the two ends of the first and second dense mesh netting are set on the fixed wire rope via spring hooks. The two ends of the fixed wire rope are connected to expansion bolts, and the expansion bolts are set on the foundation pit support system.

[0007] Preferably, the four sides of the dense mesh are provided with tensile straps, and the tensile straps are provided with a plurality of tensile holes for installing spring hooks. The wire rope also includes a movable wire rope, and the spring hooks located on both sides of the first dense mesh are provided on the movable wire rope. The two ends of the movable wire rope are provided on the fixed wire rope through spring hooks.

[0008] Preferably, the tensile buffer device includes a pair of spaced-apart bases connected to the foundation pit support system. The top surface of the bases is provided with a V-shaped movable support opening, and a C-shaped buffer connecting cylinder is provided in the movable support opening. The C-shaped opening of the buffer connecting cylinder faces upward and is provided with multiple adjusting bolts for adjusting the diameter of the C-shaped opening. Multiple connecting rings are provided on both sides of the buffer connecting cylinder, and tensile ropes are provided on the connecting rings. The ends of the tensile ropes are connected to the side of the canopy system through spring hooks.

[0009] Preferably, the buffer connecting cylinder is provided with two sets of guide ports near its two ends, and guide posts connected to the movable support ports are provided in the guide ports, and horizontal limiting rollers are provided on the top of the guide posts.

[0010] Preferably, the strip spray pipe includes a solid strip body, with two integrally formed tubes on both sides of the strip body. The two tubes are connected to different spray nozzles on the same spray connector. The strip spray pipe also includes a Y-shaped tee pipe, with two of the tee pipe's ports connected to the tube body and the other port connected to a branch pipe. The other end of the strip spray pipe is connected to the foundation pit support system via an expansion bolt.

[0011] Preferably, the longitudinal section of the spray nozzle is triangular and its elevation angle is greater than 20 degrees, and the elevation angle direction of the spray nozzle forms an acute angle with the width direction of the dense mesh.

[0012] Preferably, the support unit includes a brace, with multiple diagonal braces on both sides of the brace. The ends of the diagonal braces and the ends of the braces are used to connect to the diaphragm wall. Multiple steel columns are provided on the braces and the diaphragm wall. The diagonal braces are located below the first and second dense mesh netting. The dense mesh netting also includes a third dense mesh netting, which is located above the braces. The two sides of the third dense mesh netting are connected to a tensile buffer device via spring hooks.

[0013] Preferably, the foundation pit support system is equipped with a roller system for deploying and retracting the canopy system.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. The dustproof canopy high-altitude spray integrated dust suppression system provided by the present invention uses multiple support units to set up the canopy system in units, ensuring that the canopy system has sufficient span and that adjacent dense mesh nets have a certain overlap area, which is conducive to improving the coverage integrity of the canopy system over the foundation pit, thereby improving the dustproof performance and environmental protection performance of the canopy system.

[0015] 2. The dust suppression system provided by this invention, which uses a water curtain system with a mesh screen, not only meets the spraying requirements above the dense mesh screen, but also has a low installation height, which helps to improve the safety and reliability of the water curtain system, thereby improving the dust suppression performance of this system in foundation pit engineering.

[0016] 3. The dustproof canopy high-altitude spray integrated dust reduction system provided by the present invention can improve the automatic balance performance of the canopy system by setting a tensile buffer device, which is conducive to improving the safety, dustproof performance and overall service life of the canopy system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A top view of a dust suppression system with a high-altitude spray system; Figure 2 for Figure 1 Enlarged schematic diagram of the integrated dust suppression system with high-altitude spraying under the central dustproof canopy at point A; Figure 3 An upward view of a dust suppression system consisting of a high-altitude spray system with a dust-proof canopy. Figure 4 This is a partial exploded view of the sky screen system; Figure 5 A three-dimensional diagram showing the distribution of the water curtain system on the foundation pit support system; Figure 6 A three-dimensional view of the strip spray pipe, spray connector, and spray nozzle; Figure 7 for Figure 6 Enlarged schematic diagram of the medium plate strip spray pipe, spray connector and spray nozzle at point B; Figure 8 Side view of the strip spray pipe, spray connector, and spray nozzle; Figure 9 This is a three-dimensional view of the tensile buffer device; Figure 10 This is a side view of the tensile buffer device; In the above diagrams: 1. Canopy system; 11. Steel wire rope; 111. Fixed steel wire rope; 112. Movable steel wire rope; 12. Dense mesh netting; 121. First dense mesh netting; 122. Second dense mesh netting; 123. Third dense mesh netting; 124. Connecting strap; 125. Tensile strap; 13. Spring hook; 14. Expansion bolt; 15. Rope clamp; 2. Foundation pit support system; 21. Support brace; 22. Diagonal brace; 3. Water curtain system; 31. High-pressure spray dust suppression system 32. Wet machine; 33. Connecting pipe; 34. Main pipe; 35. Branch pipe inlet; 36. Plate-shaped spray pipe; 37. Belt body; 38. Pipe body; 39. T-connector; 40. Spray connector; 41. Spray nozzle; 42. Tensile buffer device; 43. Base; 44. Movable support port; 45. Buffer connecting cylinder; 46. Adjusting bolt; 47. Connecting ring; 48. Tensile rope; 49. Guide port; 40. Horizontal limit roller; 5. Steel column. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0020] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Examples, such as Figures 1-10 As shown, the dust suppression system provided by this invention includes a canopy system 1, which is installed on a foundation pit support system 2. The canopy system 1 includes several steel wire ropes 11, dense mesh netting 12, spring hooks 13, expansion bolts 14, and rope clamps 15. The foundation pit support system 2 includes multiple support units arranged side by side, each support unit being equipped with a canopy system 1 and a water curtain system 3. Multiple tensile buffer devices 4 are arranged between adjacent support units, and both sides of the tensile buffer devices 4 are connected to the canopy system 1 via spring hooks 13. The water curtain system 3 includes... The system includes a high-pressure spray dust suppression humidifier 31. The high-pressure spray dust suppression humidifier 31 is equipped with a connecting pipe 32 and a main pipe 33 at the output end of the connecting pipe. The main pipe 33 is equipped with multiple branch pipe ports 34. The water outlet of the branch pipe ports 34 is equipped with plate-shaped spray pipes 35 distributed near the upper surface of the dense mesh 12. Multiple spray connectors 36 are nested on the plate-shaped spray pipes 35 and spaced apart along their length. Each spray connector 36 includes two spray nozzles 37 facing opposite directions and tilting upwards. Each spray nozzle 37 is equipped with at least one spray hole 38 that communicates with the plate-shaped spray pipes 35. The spray hole 38 is used to install nozzles. Among them, the dense mesh 12 adopts a 2000-mesh green dustproof net; the spring hook 13 has a spring trigger, which can be pressed to connect the spring hook 13 to the corresponding hole; the expansion bolt 14 is used to fix the connection to the foundation pit support system 2 and the ground diaphragm wall, providing a fixed node for fixing the wire rope 111; after the wire rope 11 passes through the loop on the expansion bolt 14, the end of the wire rope 11 is clamped by the rope clamp 15 to improve the reliability of the wire rope 11; the high-pressure spray dust suppression humidifier 31 is a device that atomizes water into fine mist through a high-pressure pump. It is an existing mature device with wide applications in the industrial field. Its main function is to atomize water into fine mist through a high-pressure pump.

[0022] Specifically, the steel structure of the support unit provides a certain width interval for adjacent canopy systems 1, providing necessary installation foundations for other essential equipment; on the other hand, it provides a rigid foundation for workers to walk above the pit. This invention establishes an effective support system above the pit using support units, serving not only as a support structure for the top of the pit but also as an effective support foundation for canopy systems 1 and water curtain systems 3. Based on this, by using multiple support units to set up canopy systems 1 in sections, the canopy system 1 has sufficient span. As a support, it also prevents significant collapse at the corners of the dense mesh netting 12, and adjacent dense mesh netting 12 has a certain overlap area, which helps improve the integrity of the canopy system 1's coverage of the pit, thereby improving the dustproof and environmental performance of the canopy system 1. The present invention employs a water curtain system 3 with a mesh covering. For example, its plate-shaped spray pipes 35 can be laid on the upper surface of the dense mesh 12 to the maximum extent. The spray nozzles 37 with an inclined posture spray the spray in a certain arc, which not only meets the spraying requirements above the dense mesh 12 and improves the dust suppression performance of the system in the foundation pit project, but also has a lower installation height. In addition, the surface area of ​​the plate-shaped spray pipes 35 is larger than that of the pipe structure of the round pipe, which can better contact the supporting object below it, and is not easy to flip or roll over, which is conducive to improving the safety and reliability of the water curtain system 3.

[0023] Furthermore, this invention incorporates tensile buffer devices 4 between adjacent canopy systems 1. The tension on both sides of the tensile buffer device 4 establishes a connection with the canopy system 1. Under external force, the canopy system 1 can automatically achieve self-balancing with the tensile buffer device 4, thus improving its automatic balancing performance. Additionally, the plate-shaped spray pipes 35 of the water curtain system 3 also have a certain inhibitory effect on the dense mesh net 12, limiting its maximum upward buoyancy and preventing the dense mesh net 12 from being blown up by wind, resulting in large gaps between adjacent dense mesh nets 12. Therefore, the canopy system 1 provided by this invention has high safety and dustproof performance, and a long overall service life.

[0024] To improve the dustproof performance of the canopy system 1, the dense mesh net 12 provided by the present invention includes a first dense mesh net 121 and a second dense mesh net 122 distributed at intervals. The first dense mesh net 121 is provided with an inverted T-shaped connecting strip 124, and the connecting strip 124 is provided with a plurality of connecting holes distributed at intervals along its length. The second dense mesh net 122 is connected to the connecting strip 124 through a spring hook 13. The wire rope 11 includes a fixed wire rope 111. The two ends of the first dense mesh net 121 and the second dense mesh net 122 are set on the fixed wire rope 111 through the spring hook 13. The two ends of the fixed wire rope 111 are connected to expansion bolts 14, and the expansion bolts 14 are set on the foundation pit support system 2. Each support unit has at least four fixed steel wire ropes 111, distributed on the four sides of the support unit. These ropes can be connected to the dense mesh netting 12 via spring hooks 13. For example, when the canopy system 1 is fully open, all four open sides can be connected to the fixed steel wire ropes 111 via spring hooks 13 to ensure effective coverage of the pit construction area after the netting is fully open. The inverted T-shaped connecting strip 124 is located near the side of the first dense mesh netting 121 and uses high-pressure heat... The mesh is pressed into a single piece or woven into a single structure, providing multiple connection nodes for the second dense mesh 122. After the second dense mesh 122 and the connecting belt 124 are connected by the spring hook 13, a certain overlap area can be formed, which helps to reduce gaps in the mesh 12. The mesh 12 is connected sequentially to form a relatively complete mesh. With the spring hook 13 as the movable node, the cooperation between the spring hook 13 and the fixed wire rope 111 can effectively open all the mesh 12 and cover the top of the pit, thereby establishing an effective dustproof coverage surface for dust prevention.

[0025] Furthermore, the dense mesh 12 provided by the present invention is provided with tensile straps 125 on all four sides, and tensile straps 125 are provided with a plurality of tensile holes for installing spring hooks 13. The steel wire rope 11 also includes a movable steel wire rope 112. The spring hooks 13 located on both sides of the first dense mesh 121 are provided on the movable steel wire rope 112, and the two ends of the movable steel wire rope 112 are provided on the fixed steel wire rope 111 through the spring hooks 13. The tensile band 125 is woven together with the dense mesh 12 to form a single unit, providing a sufficient number of tensile holes while ensuring the tensile strength of the four sides. Several spring hooks 13 are installed on the side of the first dense mesh 121. One end of each spring hook 13 is connected to a tensile hole, and the other end is connected to a tensile support point of a movable steel wire rope 112. Both ends of the movable steel wire rope 112 are connected to a fixed steel wire rope 111. Since the surface of the movable steel wire rope 112 is a continuous line, the effective opening of the first dense mesh 121 can be ensured through multiple tensile support points. Yes, this avoids a significant collapse in the middle of the first dense mesh net 121. On this basis, a second dense mesh net 122 is connected to the two first dense mesh nets 121 in an orderly manner. The full opening of the first dense mesh net 121 provides sufficient opening support points for the second dense mesh net 122. In addition, the movable steel wire rope 112 can also provide effective support at the overlapping edges of the second dense mesh net 122 and the first dense mesh net 121. This can further improve the opening quality of the first dense mesh net 121 and the second dense mesh net 122, thereby improving the dustproof performance of the canopy system 1.

[0026] To improve the automatic balancing performance of the tensile buffer device 4 and the canopy system 1, the tensile buffer device 4 provided by the present invention includes a pair of spaced-apart bases 41. The bases 41 are connected to the foundation pit support system 2. The top surface of the bases 41 is provided with a V-shaped movable support port 42. A C-shaped buffer connecting cylinder 43 is provided in the movable support port 42. The C-shaped opening of the buffer connecting cylinder 43 faces upward and is provided with multiple adjusting bolts 44 for adjusting the diameter of the C-shaped opening. Multiple connecting rings 45 are provided on both sides of the buffer connecting cylinder 43. Tensile ropes 46 are provided on the connecting rings 45. The ends of the tensile ropes 46 are connected to the side of the canopy system 1 through spring hooks 13. The base 41 is installed on the interval boundary between adjacent canopy systems 1. Under the premise that the two bases 41 provide a certain support height for the buffer connecting cylinder 43, a flexible connecting arm with the canopy system 1 with a length characteristic can be established through the tensile rope 46. At the same time, the base 41 also provides effective clockwise and counterclockwise support surfaces for the buffer connecting cylinder 43, namely the movable support port 42. Under the condition of tension on both sides of the buffer connecting cylinder 43, the buffer connecting cylinder 43 can swing a certain amplitude according to the magnitude of the left and right forces. As the tension gradually balances, the rotation amplitude of the buffer connecting cylinder 43 in the movable support port 42 becomes smaller. Therefore, the tensile buffer device 4 can play an automatic balancing role for the canopy system 1.

[0027] Furthermore, the adjusting bolt 44 includes a bolt rod with adjusting nuts at both ends. By changing the relative position of the adjusting nuts at both ends, the diameter of the buffer connecting cylinder 43 can be controlled. While changing the diameter of the buffer connecting cylinder 43, its actual circular position also changes, thereby obtaining a support height different from that of the movable support port 42. This changes the tension of the tensile rope 46 and the self-balancing adjustment margin, improving the overall utilization rate of the tensile buffer device 4.

[0028] The buffer connecting cylinder 43 is connected to the flexible connecting arm of the canopy system 1, namely the tensile rope 46. The two ends of the tensile rope 46 are connected by spring hooks 13 as flexible connectors. For example, one end is connected to the connecting ring 45, and the other end is preferably connected to the spring hook 13 at the end of the dense mesh 12. This allows it to interact with the forces at both ends of the dense mesh 12, especially avoiding excessive tension at the end of the dense mesh 12, which would cause the fixing wire rope 111 to be pulled loose and form a V-shaped structure. It also ensures that the end of the dense mesh 12 always covers the edge of the pit, avoiding large gaps that would affect the dustproof quality.

[0029] To improve the connection reliability between the buffer connecting cylinder 43 and the base 41, the buffer connecting cylinder 43 provided by the present invention has two sets of guide ports 47 near its two ends. Each guide port 47 has a guide post connected to the movable support port 42, and a horizontal limiting roller 48 is provided at the top of the guide post. By providing the guide ports and guide posts, the buffer connecting cylinder 43 can be provided with maximum swing amplitude and its axial movement can be reduced. The horizontal limiting roller 48 is used to prevent the buffer connecting cylinder 43 from jumping up and down. Furthermore, the roller surface of the horizontal limiting roller 48 is cylindrical, which, in conjunction with the inner wall of the buffer connecting cylinder 43, improves the smoothness of the self-balancing adjustment process of the buffer connecting cylinder 43, thus improving the immediacy of the balance adjustment action.

[0030] To improve the dust suppression performance of the water curtain system 3, the plate-shaped spray pipe 35 provided by the present invention includes a solid belt body 351. Two pipe bodies 352 integrally formed with the belt body 351 are provided on both sides of the belt body 351. The two pipe bodies 352 are connected to different spray nozzles 37 on the same spray connector 36 in a one-to-one correspondence. The plate-shaped spray pipe 35 also includes a Y-shaped tee pipe 353. Two of the pipe ports of the tee pipe 353 are connected to the pipe body 352 and the other pipe port is connected to the branch pipe port 34. The other end of the plate-shaped spray pipe 35 is connected to the foundation pit support system 2 through expansion bolts 14 to ensure the installation reliability of the plate-shaped spray pipe 35. The three-way pipe 353 can guide the flow from the main pipe 33 to different pipe bodies 352. For optimal connection between the spray connector 36 and the strip spray pipe 35, it is best to use thermoforming to connect them. Holes are opened on the pipe body 352 at positions corresponding to the spray nozzles 37 to ensure a continuous spray path. Different spray directions correspond to different pipe bodies 352, thus ensuring uniform flow in different spray directions, especially for the two spray nozzles 37 on the same spray connector 36. The same spray nozzle 37 can use a large-diameter nozzle or three different radially distributed small-diameter nozzles. Using multiple nozzles can increase the spray pressure and the maximum spray arc length, which is beneficial for improving the efficiency of dust suppression spraying.

[0031] Furthermore, the longitudinal section of the spray nozzle 37 provided by the present invention is triangular with an elevation angle greater than 20 degrees, and the elevation angle direction of the spray nozzle 37 forms an acute angle with the width direction of the dense mesh 12. By adopting a triangular elevation direction, the efficiency of the spray being ejected from the pipe body 352 can be improved, and an effective umbrella-shaped surface can be obtained after spraying. With the design of the elevation angle and the width of the dense mesh 12, the spray surface of the subsequent spray nozzle 37 can cover the spray dead corner below the previous spray nozzle 37. After the spray is ejected, in addition to the range of its umbrella-shaped projection, its diffuse characteristic can expand its actual radiation surface, thereby improving the dust suppression performance of the water curtain system 3.

[0032] To improve the support performance of the foundation pit support system 2 for the canopy system 1 and the water curtain system 3, the support unit provided by this invention includes a brace 21. Multiple diagonal braces 22 are provided on both sides of the brace 21. The ends of the diagonal braces 22 and the ends of the braces 21 are used to connect to the diaphragm wall. Multiple steel columns are provided on the braces 21 and the diaphragm wall. The diagonal braces 22 are located below the first and second mesh nets 121 and 122. The mesh nets 121 also include a third mesh net 12, which is located above the braces 21. The two sides of the third mesh net 12 are connected to the tensile buffer device 4 via spring hooks 13. The brace 21 includes two horizontal steel sections with a short steel section between them. The diagonal braces 22 are supported by steel sections and are positioned at a 90-degree angle between the brace 21 and the diaphragm wall to improve the structural strength of the support unit. Furthermore, the horizontal span provided by the bracing 21 can provide bottom support for the construction of an aerial walkway for the building project. The aerial walkway can be used by workers to walk from the top of the pit to the elevator in the pit. In this way, within the pit area where the diagonal bracing 22 is located, the support surface it provides can effectively support the dustproof coverage of the first and second dense mesh nets 121 and 122. In the area where the bracing 21 is located, the third dense mesh net 12 serves as an extension of the dustproof canopy, ensuring that the canopy system 1 has a complete dustproof coverage.

[0033] To improve the utilization rate of the canopy system 1, the present invention provides a pulley system for deploying and retracting the canopy system 1 on the foundation pit support system 2. The pulley system includes steel ropes and pulleys, wherein the pulleys can be connected to spring hooks 13, or pulleys with spring hooks 13 can be used directly, using the pulleys as moving nodes and attachment nodes of the dense mesh netting; the steel ropes can be deployed and retracted by handwheels or by motorized deployment and retraction using a drive motor. Considering that some construction projects will build elevators higher than the foundation pit, in order to ensure the dustproof performance of the canopy system 1, the canopy system 1 adopts a double-opening design. For the part near the elevator, a dense mesh netting with a span smaller than the first dense mesh netting 121 and the second dense mesh netting 122 is used. This dense mesh netting is connected to the connection holes of the canopy system 1 by spring hooks 13 to ensure the dustproof performance of the canopy system 1.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A comprehensive dust suppression system using a high-altitude spray system with a dust-proof canopy, comprising a canopy system installed on a foundation pit support system, the canopy system including several wire ropes, dense mesh netting, spring hooks, expansion bolts, and rope clamps, characterized in that... The foundation pit support system includes multiple support units arranged side by side, each support unit is equipped with a canopy system and a water curtain system; multiple tensile buffer devices are arranged between adjacent support units, and both sides of the tensile buffer devices are connected to the canopy system through spring hooks; The water curtain system includes a high-pressure spray dust suppression humidifier. The high-pressure spray dust suppression humidifier is equipped with a connecting pipe. The output end of the connecting pipe is equipped with a main pipe. The main pipe is equipped with multiple branch pipe outlets. The water outlet of each branch pipe outlet is equipped with a strip-shaped spray pipe distributed near the upper surface of the mesh screen. Multiple spray connectors are nested on the strip-shaped spray pipe and spaced apart along its length. Each spray connector includes two upward-facing spray nozzles facing opposite directions. Each spray nozzle is equipped with at least one spray hole communicating with the strip-shaped spray pipe. The spray hole is used to install a nozzle.

2. The dust suppression system with high-altitude spraying as described in claim 1, characterized in that, The dense mesh netting includes a first dense mesh netting and a second dense mesh netting distributed at intervals. The first dense mesh netting is provided with an inverted T-shaped connecting strip, and the connecting strip is provided with multiple connecting holes distributed at intervals along its length. The second dense mesh netting is connected to the connecting strip via spring hooks. The steel wire rope includes a fixed steel wire rope. The two ends of the first and second dense mesh netting are set on the fixed steel wire rope via spring hooks. The two ends of the fixed steel wire rope are connected to expansion bolts, and the expansion bolts are set on the foundation pit support system.

3. The dust suppression system with high-altitude spraying as described in claim 2, characterized in that, The dense mesh is provided with tensile straps on all four sides, and the tensile straps are provided with a number of tensile holes for installing spring hooks. The steel wire rope also includes a movable steel wire rope. The spring hooks located on both sides of the first dense mesh are set on the movable steel wire rope, and the two ends of the movable steel wire rope are set on the fixed steel wire rope through spring hooks.

4. The dust suppression system with high-altitude spraying and dust removal as described in claim 3, characterized in that, The tensile buffer device includes a pair of spaced-apart bases connected to the foundation pit support system. The top surface of the bases is provided with a V-shaped movable support opening, and a C-shaped buffer connecting cylinder is provided in the movable support opening. The C-shaped opening of the buffer connecting cylinder faces upward and is provided with multiple adjusting bolts for adjusting the diameter of the C-shaped opening. Multiple connecting rings are provided on both sides of the buffer connecting cylinder, and tensile ropes are provided on the connecting rings. The ends of the tensile ropes are connected to the side of the canopy system through spring hooks.

5. The dust suppression system with high-altitude spraying as described in claim 4, characterized in that, The buffer connecting cylinder has two sets of guide ports near its two ends. Each guide port has a guide post that is connected to the movable support port. A horizontal limiting roller is provided on the top of each guide post.

6. The dust suppression system with high-altitude spraying and dust removal as described in claim 1 or 5, characterized in that, The strip spray pipe includes a solid strip body, with two integrally formed tubes on both sides of the strip body. The two tubes are connected to different spray nozzles on the same spray connector. The strip spray pipe also includes a Y-shaped tee pipe, with two of the tee pipe ends connected to the tube body and the other end connected to a branch pipe. The other end of the strip spray pipe is connected to the foundation pit support system via expansion bolts.

7. The dust suppression system with high-altitude spraying and dust removal as described in claim 6, characterized in that, The longitudinal section of the spray nozzle is triangular and its elevation angle is greater than 20 degrees. The elevation angle of the spray nozzle forms an acute angle with the width direction of the dense mesh.

8. The dust suppression system with high-altitude spraying as described in claim 3, characterized in that, The support unit includes a brace, with multiple diagonal braces on both sides of the brace. The ends of the diagonal braces and the ends of the braces are used to connect to the diaphragm wall. Multiple steel columns are installed on the braces and the diaphragm wall. The diagonal braces are located below the first and second dense mesh nets. The dense mesh nets also include a third dense mesh net, which is located above the braces. The two sides of the third dense mesh net are connected to a tensile buffer device via spring hooks.

9. The dust suppression system with high-altitude spraying as described in claim 1, characterized in that, The foundation pit support system is equipped with a roller system for deploying and retracting the canopy system.

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