Green construction dust suppression device

Abstract

The application relates to the technical field of environmental protection engineering construction, in particular to a green construction dust suppression device. The dust suppression device comprises a supporting assembly, a gas-liquid spraying assembly, a reverse blowing assembly and a supply air duct assembly; the gas-liquid spraying assembly is arranged on the supporting assembly; one end of the supply air duct assembly is connected with and communicates with the gas-liquid spraying assembly; the other end of the supply air duct assembly is provided with an air inlet; the reverse blowing assembly is arranged on the supply air duct assembly and can rotate on the supply air duct assembly under the action of natural wind; a first driving mechanism is arranged on the supporting assembly and is in transmission connection with the supply air duct assembly so as to drive the reverse blowing assembly to rotate on the supply air duct assembly. According to the scheme, the reverse blowing assembly is designed to offset the interference of outdoor crosswind and inhibit the influence of external random wind on the spraying direction, targeted dust suppression is realized, and the targeted spraying dust removal effect is improved.

Description

Technical Field

[0001] This application relates to the field of environmental engineering construction technology, specifically to a green construction dust suppression device. Background Technology

[0002] As society continues to progress, the number of buildings is gradually increasing. A large amount of dust is generated during the construction process. In order to ensure the breathing safety of construction workers, dust suppression devices need to be used to suppress dust during construction.

[0003] Existing dust suppression devices consist of components such as water tanks, water pipes, and nozzles. They suppress dust by spraying water. Although they can reduce environmental pollution, dust suppression devices still have some drawbacks during use. For example, in windy weather, it is difficult to control the direction of the spray, and the spray will be blown away by the wind, which will affect the dust suppression effect. Summary of the Invention

[0004] The purpose of this application is to provide a green construction dust suppression device that aims to solve the problem that existing dust suppression devices are affected by turbulent winds and cannot control the direction of spraying.

[0005] This application proposes a green construction dust suppression device, which includes a support assembly, a gas-liquid spray assembly, a reverse blowing assembly, and an air supply duct assembly. The gas-liquid spray assembly is mounted on the support assembly. One end of the air supply duct assembly is connected to and communicates with the gas-liquid spray assembly. The other end of the air supply duct assembly is provided with an air inlet. The reverse blowing assembly is mounted on the air supply duct assembly and can rotate on the air supply duct assembly under the influence of natural wind. The support assembly is provided with a first drive mechanism, which is connected to the air supply duct assembly to drive the reverse blowing assembly to rotate on the air supply duct assembly.

[0006] In some embodiments, the gas-liquid spray assembly includes a nozzle, a water-air separator, and a water inlet pipe; the water-air separator is mounted on a support assembly; the nozzle is mounted on one side of the water-air separator and communicates with it; the water inlet pipe communicates with the water-air separator; and one end of the air supply duct assembly is rotatably connected to and communicates with the other side of the water-air separator.

[0007] In some embodiments, the nozzle is provided with an atomizing nozzle and a gas nozzle; multiple gas nozzles are arranged in a ring on the side of the nozzle to form an annular gas nozzle; multiple atomizing nozzles are evenly arranged on the side of the nozzle and located inside the annular gas nozzle; a water-gas separator is connected to the atomizing nozzle through a water inlet pipe and to the gas nozzle through an air inlet pipe.

[0008] In some embodiments, the air supply duct assembly includes an air inlet pipe, one end of which is connected to the air inlet of the water-air separator; the reverse blowing assembly includes a reverse blowing fan, which is rotatably mounted on the air inlet pipe via a transmission component; the air outlet direction of the reverse blowing fan is opposite to the spray direction of the nozzle.

[0009] In some embodiments, the transmission assembly includes a drive gear and a transmission gear pair; the drive gear is sleeved and fixed on the outer wall of the air inlet pipe and meshes with the transmission gear pair; the transmission gear pair meshes with the internal gear ring of the reverse wind fan so as to drive the reverse wind fan to rotate; the air inlet pipe is also provided with an air inlet drive assembly; the air inlet drive assembly can rotate under the influence of natural wind force to drive the drive gear to rotate.

[0010] In some embodiments, the transmission assembly includes a drive gear and a transmission gear pair; the drive gear is sleeved and fixed on the outer wall of the air inlet pipe and meshes with the transmission gear pair; the transmission gear pair meshes with the internal gear ring of the reverse air blower so as to drive the reverse air blower to rotate; a first bevel gear is also provided on the air inlet pipe; the first drive mechanism is telescopically mounted on the support assembly and can mesh with the first bevel gear through the second bevel gear.

[0011] In some embodiments, the air intake drive assembly includes an air intake shroud, an Archimedes' spiral blade, a flow guide shroud, and a support shroud; the air intake shroud and the support shroud are respectively fitted onto the outer wall of the air intake pipe to form an air cavity; an air outlet is formed between the air intake shroud and the support shroud; the Archimedes' spiral blade and the flow guide shroud are respectively fixedly fitted onto the outer wall of the air intake pipe and can rotate with the air intake pipe; the Archimedes' spiral blade and the flow guide shroud are respectively disposed in the air cavity; a horn-shaped air inlet is provided at one end of the outer side of the air intake shroud.

[0012] In some embodiments, the side of the shroud facing the Archimedes' blades is provided with multiple spiral baffles, which are distributed radially along the side of the shroud; a filter screen is provided inside the horn air inlet; and an air collection hood can be installed on the horn air inlet.

[0013] In some embodiments, the first driving mechanism includes a first driving motor, a second telescopic rod, a support plate, and a limiting rod; the support plate is disposed in the control box of the support assembly; the second telescopic rod is disposed on the support plate; the telescopic end of the second telescopic rod is provided with a lifting seat, the first driving motor is disposed on the lifting seat, and the second bevel gear is disposed on the output shaft of the first driving motor; one end of the limiting rod is disposed on the lifting seat, and the other end of the limiting rod passes through the support plate and can extend and retract on the support plate.

[0014] In some embodiments, the support assembly includes a mounting frame, a first telescopic rod, and a base; the first telescopic rod is disposed horizontally on the base; the mounting frame is disposed at one end of the first telescopic rod and can extend and retract together with the first telescopic rod; the mounting frame is provided with a second drive mechanism; the second drive mechanism is connected to the gas-liquid spray assembly to drive the gas-liquid spray assembly and the reverse blowing assembly to rotate.

[0015] This application proposes a green construction dust suppression device, which has the following technical effects: First, the dust suppression device proposed in this application uses a reverse blowing assembly to counteract outdoor crosswind interference and suppress the influence of external turbulent winds on the spray direction, thereby achieving targeted dust suppression and improving the targeted spray dust removal effect. Secondly, the dust suppression device proposed in this application, the reverse blowing assembly, is linked with the air intake drive component. It can be driven to rotate by natural wind power, thereby achieving targeted dust suppression, meeting construction environmental protection standards. Water-air coupling atomization can reduce water consumption, reduce power consumption, and has no secondary pollution such as chemical dust suppressants, which complies with green construction specifications. Third, the dust suppression device proposed in this application has two air supply modes: natural wind self-drive and motor drive. In windy conditions, it can rely on natural wind for energy-saving operation, and in windless conditions, it can continuously output wind-resistant airflow by supplementing energy through the motor. Combined with the complete sealed fog screen formed by the annular gas nozzle and the annular wrap-around atomizing nozzle, it can effectively reduce the evaporation and diffusion of fog droplets. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a green construction dust suppression device according to this application. Figure 1 .

[0017] Figure 2 This is a schematic diagram of a green construction dust suppression device according to this application. Figure 2 .

[0018] Figure 3 This is a schematic diagram of a green construction dust suppression device according to this application. Figure 3 .

[0019] Figure 4 This is a schematic diagram of a green construction dust suppression device according to this application. Figure 4 .

[0020] Figure 5 This application relates to a localized explosion of a green construction dust suppression device. Figure 1 .

[0021] Figure 6 This application relates to a localized explosion of a green construction dust suppression device. Figure 2 .

[0022] Figure 7This is a partial schematic diagram of a green construction dust suppression device according to this application. Figure 1 .

[0023] Figure 8 This is a partial cross-sectional view of a green construction dust suppression device according to this application.

[0024] Figure 9 This is a partial schematic diagram of a green construction dust suppression device according to this application. Figure 2 .

[0025] Figure 10 This is a partial schematic diagram of a green construction dust suppression device according to this application. Figure 3 .

[0026] In the diagram: 1. Support base; 2. Support column; 3. Adapter base; 4. First telescopic rod; 5. Support frame; 6. Nozzle; 7. Backdraft fan; 8. Horn air inlet; 9. Water pipe; 10. Air inlet hood; 11. Water-air separator; 12. Air inlet pipe; 13. Rotating sleeve; 14. Archimedes spiral blade; 15. Flow guide; 16. Support cover; 17. Bracket; 18. Filter screen; 19. First bevel gear; 20. Second bevel gear; 21. First drive motor; 22. Lifting base; 23. Second telescopic rod; 24. Support plate; 25. Limiting rod; 26. Second drive motor; 27. Water inlet pipe; 28. Air inlet pipe; 29. ​​First transmission gear; 30. Second transmission gear; 31. Third transmission gear; 32. Drive gear; 33. Internal gear ring; 34. Atomizing nozzle; 35. Gas nozzle; 36. Drive pipe section. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0028] like Figures 1 to 5As shown, this application proposes a green construction dust suppression device that can be used in engineering construction sites to achieve environmentally friendly construction. The dust suppression device includes a support assembly, a gas-liquid spray assembly, a reverse-blowing assembly, and an air supply duct assembly. The gas-liquid spray assembly is mounted on the support assembly and can rotate on the support assembly to achieve 360° rotational dust removal. One end of the air supply duct assembly is connected to and communicates with the gas-liquid spray assembly to provide airflow to the gas-liquid spray assembly. The other end of the air supply duct assembly has an air inlet; preferably, the air supply duct assembly is horizontally connected to the gas-liquid spray assembly to achieve horizontal air supply. Furthermore, the reverse-blowing assembly is mounted on the air supply duct assembly and can rotate on the air supply duct assembly under the influence of natural wind, thereby preventing external turbulent winds from disrupting the spray direction of the gas-liquid spray assembly. Using natural wind power to drive the rotation of the reverse-blowing assembly reduces costs, and is particularly reasonable for use in low-dust construction sites. Furthermore, the support assembly is equipped with a first drive mechanism, which is connected to the air supply duct assembly for transmission, enabling it to drive the reverse blowing assembly to rotate on the air supply duct assembly. This also prevents external turbulent winds from disrupting the spray direction of the gas-liquid spray assembly. Preferably, the first drive mechanism is electrically driven. Using an electric drive to drive the reverse blowing assembly to rotate improves its resistance effect, thereby maintaining the spray direction of the gas-liquid spray assembly and achieving efficient dust removal. The green construction dust suppression device proposed in this application, by providing a reverse blowing assembly on the air supply duct assembly, allows the reverse blowing assembly to rotate under natural wind force or driven by a drive mechanism, thereby preventing turbulent winds from affecting the spray direction of the gas-liquid spray assembly and improving the spray dust removal effect of the gas-liquid spray assembly.

[0029] like Figures 1 to 5 As shown, in some embodiments, the gas-liquid spray assembly includes a nozzle 6, a water-air separator 11, and a water inlet pipe 9. The water-air separator 11 is fixedly mounted on a support assembly and is rotatable on the support assembly. The nozzle 6 is disposed on one side of the water-air separator 11 and communicates with it to achieve spraying. The water inlet pipe 9 communicates with the water-air separator 11 and can be connected to an external water source to supply water to the water-air separator 11. Furthermore, one end of the air supply duct assembly is rotatably connected to and communicates with the other side of the water-air separator 11, thereby supplying air to the water-air separator 11.

[0030] like Figure 6 and Figure 10As shown, in some embodiments, the nozzle 6 is provided with atomizing nozzles 34 and gas nozzles 35 on its side. Multiple gas nozzles 35 are arranged in a ring on the side of the nozzle 6 to form an annular gas nozzle. Multiple atomizing nozzles 34 are evenly arranged on the side of the nozzle 6 and enclosed within the annular gas nozzle. Specifically, the water-air separator 11 is connected to the atomizing nozzle 34 separately via a water inlet pipe 27, which is connected to the water receiving pipe 9; the water-air separator 11 is connected to the gas nozzles 35 via an air inlet pipe 28, which is connected to the air duct of the air supply duct assembly. By adopting the above scheme, and by separately designing the water inlet pipe 27 to connect to the atomizing nozzle 34 and the air inlet pipe 28 to connect to the gas nozzles 35, water-air mixing can be avoided, thus preventing interference with water-air transport. Simultaneously, it facilitates atomization and vaporization processes, achieving a uniform spraying effect after atomization and vaporization. The atomizing nozzle produces particles that are better suited for capturing fine dust, significantly reducing water consumption and avoiding problems such as water accumulation on construction sites, freezing in winter, and material clumping, thus meeting the requirements of green construction and water conservation.

[0031] like Figures 4 to 8 As shown, in some embodiments, the air supply duct assembly includes an air inlet pipe 12, within which an air duct is formed. Specifically, one end of the air inlet pipe 12 is connected to the air inlet of the water-air separator 11, and the other end of the air inlet pipe 12 is provided with an air inlet. The reverse blowing assembly includes a reverse blower 7, which is rotatably mounted on the air inlet pipe 12 via a transmission assembly. Specifically, the air inlet surface of the reverse blower 7 faces the nozzle 6, so that the air outlet direction of the reverse blower 7 is opposite to the spray direction of the nozzle 6, thereby allowing the air outlet of the reverse blower 7 to obstruct the influence of external turbulent wind on the spray direction of the nozzle 6 when the reverse blower 7 rotates. Furthermore, the reverse blower 7 and the air inlet pipe 12 are detachably assembled to allow for replacement, thereby matching reverse blowers 7 with different wind intensities.

[0032] like Figures 4 to 8 As shown, in some embodiments, the transmission assembly includes a drive gear 32 and a transmission gear pair. The drive gear 32 is sleeved and fixed to the outer wall of the air inlet pipe 12 and meshes with the transmission gear pair, thereby driving the transmission gear pair to rotate. The transmission gear pair meshes with the internal gear ring 33 of the counter-wind fan 7, thereby driving the counter-wind fan 7 to rotate. Further, the air inlet pipe 12 is also provided with an air inlet drive assembly; the air inlet drive assembly can rotate under natural wind force, thereby driving the air inlet pipe 12 to rotate, and thus driving the drive gear 32 to rotate. Preferably, the drive gear 32 and the air inlet drive assembly are respectively assembled to the outer wall of the air inlet pipe 12 through a keyway structure to achieve linkage. The keyway structure is a conventional mechanical connection structure and will not be described in detail here.

[0033] like Figures 4 to 8As shown, in some embodiments, the transmission assembly includes a drive gear 32 and a transmission gear pair. The drive gear 32 is sleeved and fixed to the outer wall of the air inlet pipe 12 and meshes with the transmission gear pair, thereby driving the transmission gear pair to rotate. The transmission gear pair meshes with the internal gear ring 33 of the reverse air blower 7, thereby driving the reverse air blower 7 to rotate. Correspondingly, a first bevel gear 19 is also provided on the air inlet pipe 12. Further, the first drive mechanism is telescopically mounted on the support assembly and can mesh with the first bevel gear 19 through a second bevel gear 20. Preferably, the first bevel gear 19 is assembled with the outer wall of the air inlet pipe 12 through a keyway structure to achieve linkage. Using the above scheme, by designing the first drive mechanism to telescopically engage the second bevel gear 20 with the first bevel gear 19, the air inlet pipe 12 can be driven to rotate, which in turn drives the reverse air blower 7 to rotate through the drive gear 32 and the transmission gear pair. The structural design is reasonable and compact.

[0034] Preferably, such as Figure 7 As shown, the transmission gear pair specifically includes a first transmission gear 29, a second transmission gear 30, and a third transmission gear 31. An annular internal gear ring 33 is provided inside the hub of the counter-wind fan 7. The first transmission gear 29, the second transmission gear 30, and the third transmission gear 31 are respectively disposed within the internal gear ring 33 and mesh with it. The driving gear 32 is located at the center of the first transmission gear 29, the second transmission gear 30, and the third transmission gear 31, and meshes with them respectively. A bracket 17 is provided on the side of the air inlet shroud 16 facing away from the air inlet shroud 10. The first transmission gear 29, the second transmission gear 30, and the third transmission gear 31 engage with the bracket 17 to provide support. In this application, a transmission gear pair consisting of a first transmission gear 29, a second transmission gear 30, and a third transmission gear 31 is designed, which meshes with the internal gear ring 33 and the driving gear 32 respectively to achieve transmission. This design primarily considers stability, as the environment in engineering construction is harsh and dusty, which can easily accumulate in the transmission mechanism and cause interference. Using three transmission gears to achieve transmission ensures more stable transmission, especially when the reverse wind fan 7 is operating under high intensity.

[0035] like Figures 5 to 8As shown, in some embodiments, the air intake drive assembly includes an air intake shroud 10, an Archimedes spiral blade 14, a flow guide shroud 15, and a support shroud 16. The air intake shroud 10 and the support shroud 16 are respectively fitted onto the outer wall of the air intake pipe 12 to form an air cavity; an air outlet is formed between the air intake shroud 10 and the support shroud 16. The Archimedes spiral blade 14 and the flow guide shroud 15 are respectively fixedly fitted onto the outer wall of the air intake pipe 12 and can rotate with the air intake pipe 12. The Archimedes spiral blade 14 and the flow guide shroud 15 are respectively disposed within the air cavity and can rotate within the air cavity under the influence of natural wind. To increase the air intake volume, a horn-shaped air intake 8 is provided at one end of the outer side of the air intake shroud 10. Preferably, the Archimedes spiral blade 14 and the flow guide shroud 15 are respectively fixedly fitted onto a rotating sleeve 13, which is fixedly fitted onto the air intake pipe 12. This design mainly facilitates processing and forming. In the above scheme, when the Archimedes spiral blade 14 and the deflector 15 rotate under the drive of natural wind, they can drive the air inlet pipe 12 to rotate, thereby driving the drive gear 32 to rotate, and finally driving the counter-wind fan 7 to rotate, forming a reverse wind force to block the interference of external wind. The cooperation between the Archimedes spiral blade and the deflector can effectively improve the driving efficiency of wind, thereby enabling the spray direction of the gas-liquid spray assembly to be controlled by natural wind.

[0036] like Figures 5 to 6 , Figure 8 As shown, in some embodiments, the guide shroud 15 has multiple spiral baffles on one side facing the Archimedes' helical blade 14, and these baffles are radially distributed along the side of the guide shroud 15 to achieve efficient airflow guidance, reduce wind noise, improve airflow utilization, and increase the rotational speed of the guide shroud 15 for the Archimedes' helical blade 14. A filter screen 18 is provided inside the horn-shaped air inlet 8 to prevent sand and dust from entering the air duct and air cavity, reducing blade wear. A gas collecting shroud 37 can be installed on the horn-shaped air inlet 8, and the gas collecting shroud 37 is threadedly connected to the horn-shaped air inlet 8 for detachable connection. The maximum diameter of the gas collecting shroud 37 is smaller than the diameter of the fan blade of the counter-wind fan 7. The gas collecting shroud 37 can effectively increase the air intake volume. Specifically, the Archimedes' helical blade 14 can provide a large flow rate of basic airflow, its front blades can enhance axial thrust, and the airflow guiding structure of the guide shroud in the air cavity smooths the airflow and reduces wind resistance. Under low air volume conditions, the first drive mechanism retracts, the first bevel gear 19 and the second bevel gear 20 separate from each other, and the first drive motor 21 achieves no-load low-energy operation.

[0037] like Figures 6 to 7As shown, in some embodiments, the first drive mechanism includes a first drive motor 21, a second telescopic rod 23, a support plate 24, and a limiting rod 25. The support plate 24 is housed within the control box of the support assembly, which serves as a dustproof enclosure. The second telescopic rod 23 is mounted on the support plate 24; its telescopic end is equipped with a lifting seat 22; the first drive motor 21 is mounted on the lifting seat 22 and extends and retracts with it. A second bevel gear 20 is mounted on the output shaft of the first drive motor 21 and can mesh with the first bevel gear 19 when the output shaft extends to a preset position. Furthermore, one end of the limiting rod 25 is mounted on the lifting seat 22, and the other end of the limiting rod 25 passes through the support plate 24, extending and retracting on the support plate 24 to provide limiting and guiding functions, while also preventing overtravel collisions.

[0038] like Figures 1 to 4 As shown, in some embodiments, the support assembly includes a mounting frame 5, a first telescopic rod 4, and a base. Specifically, the base includes a support seat 1, a support column 2, and an adapter seat 3. The support column 2 is fixedly mounted on the support seat 1, and the support seat 1 can be mounted on any elevated structure as needed. The support column 2 can be a telescopic column to achieve height adjustment. The adapter seat 3 is located at the top of the support column 2. The first telescopic rod 4 is horizontally mounted on the adapter seat 3 and can extend and retract horizontally. The mounting frame 5 is located at one end of the first telescopic rod 4 and can extend and retract together with the first telescopic rod 4. The first telescopic rod 4 can be a hydraulic telescopic rod or an electric telescopic rod. The mounting frame 5 is equipped with a second drive mechanism. The second drive mechanism is connected to the gas-liquid spray assembly to drive the gas-liquid spray assembly and the reverse blowing assembly to rotate, thereby adjusting the spray angle. The second drive mechanism includes a second drive motor 26. The first drive motor 21 and the second drive motor 26 are each separately installed in the control box and can be started, stopped, and speed adjusted independently, realizing separate control of wind power, spray, and attitude. This is suitable for localized fixed-point dust control and provides a more reasonable power distribution. The second drive motor 26 is connected to the water-air separator 11 so that it can independently drive the water-air separator 11 to rotate, thereby realizing the angle adjustment of the nozzle 6.

[0039] The green construction dust suppression device proposed in this application, during the atomization spraying stage, introduces water and compressed air into a water-air distributor, distributing them to the atomizing nozzles and annular gas nozzles. The atomizing nozzles generate fine water mist, which is then enveloped by a high-pressure airflow in the annular channel, slowing down droplet evaporation and increasing the spray range. A second drive motor is activated, rotating all nozzles circumferentially to achieve 360° uniform spraying, improving dust capture efficiency and eliminating dust suppression blind spots. During dust suppression operations, the high-speed axial airflow in the duct carries the enveloped water mist over long distances, where the droplets collide and agglomerate with PM10 and PM2.5 dust particles in the air, causing the dust to increase in weight and settle, thus completing the green construction dust control.

[0040] This application proposes a green construction dust suppression device, which has the following technical effects: First, the dust suppression device proposed in this application uses a reverse blowing assembly to counteract outdoor crosswind interference and suppress the influence of external turbulent winds on the spray direction, thereby achieving targeted dust suppression and improving the targeted spray dust removal effect. Secondly, the dust suppression device proposed in this application, the reverse blowing assembly, is linked with the air intake drive component. It can be driven to rotate by natural wind power, thereby achieving targeted dust suppression, meeting construction environmental protection standards. Water-air coupling atomization can reduce water consumption, reduce power consumption, and has no secondary pollution such as chemical dust suppressants, which complies with green construction specifications. Third, the dust suppression device proposed in this application has two air supply modes: natural wind self-drive and motor drive. In windy conditions, it can rely on natural wind for energy-saving operation, and in windless conditions, it can continuously output wind-resistant airflow by supplementing energy through the motor. Combined with the complete sealed fog screen formed by the annular gas nozzle and the annular wrap-around atomizing nozzle, it can effectively reduce the evaporation and diffusion of fog droplets.

[0041] Although the embodiments disclosed in this application are as described above, the content is merely for the purpose of facilitating understanding of this application and is not intended to limit this application. Any person skilled in the art to which this application pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application; however, the scope of patent protection of this application shall still be determined by the scope defined in the appended claims.

Claims

1. A green construction dust suppression device, characterized in that, The dust suppression device includes a support assembly, a gas-liquid spray assembly, a reverse blowing assembly, and an air supply duct assembly. The gas-liquid spray assembly is mounted on the support component; One end of the air supply duct assembly is connected to and communicates with the gas-liquid spray assembly; the other end of the air supply duct assembly is provided with an air inlet; The reverse blowing assembly is mounted on the air supply duct assembly and can rotate on the air supply duct assembly under the influence of natural wind. The support assembly is provided with a first drive mechanism, which is connected to the air supply duct assembly to drive the reverse blowing assembly to rotate on the air supply duct assembly.

2. The green construction dust suppression device according to claim 1, characterized in that, The gas-liquid spray assembly includes a nozzle (6), a water-air separator (11), and a water inlet pipe (9); the water-air separator (11) is mounted on the support assembly; the nozzle (6) is mounted on one side of the water-air separator (11) and communicates with the water-air separator (11); the water inlet pipe (9) communicates with the water-air separator (11); one end of the air supply duct assembly is rotatably connected to and communicates with the other side of the water-air separator (11).

3. The green construction dust suppression device according to claim 2, characterized in that, The nozzle (6) is provided with an atomizing nozzle (34) and a gas nozzle (35); a plurality of gas nozzles (35) are arranged in a ring on the side of the nozzle (6) to form an annular gas nozzle; a plurality of atomizing nozzles (34) are evenly arranged on the side of the nozzle (6) and located inside the annular gas nozzle; the water-air separator (11) is connected to the atomizing nozzle (34) through a water inlet pipe (27), and the water-air separator (11) is connected to the gas nozzle (35) through an air inlet pipe (28).

4. The green construction dust suppression device according to claim 2, characterized in that, The air supply duct assembly includes an air inlet pipe (12), one end of which is connected to the air inlet of the water-air separator (11); the reverse blowing assembly includes a reverse blower (7), which is rotatably mounted on the air inlet pipe (12) via a transmission assembly; the air outlet direction of the reverse blower (7) is opposite to the spray direction of the nozzle (6).

5. The green construction dust suppression device according to claim 4, characterized in that, The transmission assembly includes a drive gear (32) and a transmission gear pair; the drive gear (32) is sleeved and fixed on the outer wall of the air inlet pipe (12) and meshes with the transmission gear pair; the transmission gear pair meshes with the internal gear ring (33) of the reverse wind fan (7) so as to drive the reverse wind fan (7) to rotate; the air inlet pipe (12) is also provided with an air inlet drive assembly; the air inlet drive assembly can rotate under the natural wind force so as to drive the drive gear (32) to rotate.

6. The green construction dust suppression device according to claim 4, characterized in that, The transmission assembly includes a drive gear (32) and a transmission gear pair; the drive gear (32) is sleeved and fixed on the outer wall of the air inlet pipe (12) and meshes with the transmission gear pair; the transmission gear pair meshes with the internal gear ring (33) of the reverse wind fan (7) so as to drive the reverse wind fan (7) to rotate; the air inlet pipe (12) is also provided with a first bevel gear (19); the first drive mechanism can be telescopically mounted on the support assembly and can mesh with the first bevel gear (19) through a second bevel gear (20).

7. The green construction dust suppression device according to claim 5, characterized in that, The air intake drive assembly includes an air intake shroud (10), an Archimedes spiral blade (14), a flow guide (15), and a support cover (16); the air intake shroud (10) and the support cover (16) are respectively fitted onto the outer wall of the air intake pipe (12) to form an air cavity; an air outlet is formed between the air intake shroud (10) and the support cover (16); the Archimedes spiral blade (14) and the flow guide (15) are respectively fixedly fitted onto the outer wall of the air intake pipe (12) and can rotate together with the air intake pipe (12); the Archimedes spiral blade (14) and the flow guide (15) are respectively disposed in the air cavity; a horn-shaped air inlet (8) is provided at one end of the outer side of the air intake shroud (10).

8. The green construction dust suppression device according to claim 7, characterized in that, The air guide (15) has multiple spiral baffles on one side facing the Archimedes spiral blade (14), and the spiral baffles are distributed radially on the side of the air guide (15); a filter screen (18) is provided inside the horn air inlet (8); an air collection hood (37) can be installed on the horn air inlet (8).

9. The green construction dust suppression device according to claim 6, characterized in that, The first driving mechanism includes a first driving motor (21), a second telescopic rod (23), a support plate (24), and a limiting rod (25); the support plate (24) is disposed in the control box of the support assembly; the second telescopic rod (23) is disposed on the support plate (24); the telescopic end of the second telescopic rod (23) is provided with a lifting seat (22), the first driving motor (21) is disposed on the lifting seat (22), and the second bevel gear (20) is disposed on the output shaft of the first driving motor (21); one end of the limiting rod (25) is disposed on the lifting seat (22), and the other end of the limiting rod (25) passes through the support plate (24) and can extend and retract on the support plate (24).

10. The green construction dust suppression device according to any one of claims 1 to 9, characterized in that, The support assembly includes a mounting frame (5), a first telescopic rod (4), and a base; the first telescopic rod (4) is arranged horizontally on the base; the mounting frame (5) is arranged at one end of the first telescopic rod (4) and can extend and retract together with the first telescopic rod (4); the mounting frame (5) is provided with a second drive mechanism; the second drive mechanism is connected to the gas-liquid spray assembly so as to drive the gas-liquid spray assembly and the reverse blowing assembly to rotate.

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