Dust fall system for construction site

Abstract

The embodiment of the utility model provides a dust falling system for a construction site, which comprises a high-pressure water pump for providing a high-pressure water source; the spray head device is connected with the high-pressure water pump and is used for spraying a high-pressure water source into fine water mist; the rotating arm is connected with the spray head device and can rotate in the horizontal direction so as to adjust the spraying angle and range; the fixing support is used for supporting and fixing the rotating arm and can adjust the height of the rotating arm; the flow guide cover is arranged around the spray head device and used for guiding airflow, the flow guide cover is conical, a plurality of guide blades are arranged in the flow guide cover, and a plurality of ventilation holes are formed in the bottom of the flow guide cover; and the length of the rotating arm is greater than the maximum extension height of the fixed bracket. According to the scheme of the embodiment of the invention, the problem that the dust falling efficiency is influenced due to non-uniform coverage of a part of dust falling areas caused by frequent and uncontrollable wind power change can be solved.

Description

Technical Field

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

[0002] Dust suppression systems used on construction sites typically include equipment such as sprayers and water pumps. By installing nozzles around the construction site or at higher elevations, they spray fine water mist to capture and settle dust, thereby reducing air pollution and improving the quality of the working environment. However, a significant problem exists in practical applications: frequent and uncontrollable wind changes can lead to uneven coverage in some dust suppression areas, thus affecting the overall efficiency and effectiveness of dust suppression. Summary of the Invention

[0003] In view of this, the present disclosure provides a dust suppression system for construction sites, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a dust suppression system for construction sites, comprising:

[0005] High-pressure water pumps are used to provide high-pressure water.

[0006] The nozzle device is connected to the high-pressure water pump and is used to spray high-pressure water into a fine water mist.

[0007] A rotating arm, connected to the nozzle device, is capable of rotating in the horizontal direction to adjust the spray angle and range;

[0008] A fixed bracket is used to support and fix the rotating arm, and the height of the rotating arm can be adjusted.

[0009] A flow deflector, positioned around the nozzle assembly, guides the airflow. The flow deflector is conical in shape and contains multiple guide vanes. Furthermore, the bottom of the flow deflector has multiple ventilation holes.

[0010] The length of the rotating arm is greater than the maximum extension height of the fixed bracket.

[0011] Preferably, the rotating arm has multiple segments, each segment being connected by a ball joint.

[0012] Preferably, the fixed bracket includes multiple telescopic sections, which are connected by threaded connections or hydraulic rods.

[0013] Preferably, the end of the rotating arm is equipped with a set of sensors for real-time monitoring of wind speed and wind direction.

[0014] Preferably, the nozzle assembly includes a plurality of nozzles.

[0015] Preferably, the nozzles are arranged in a multi-level staggered arrangement.

[0016] Preferably, the high-pressure water pump is equipped with a pressure regulating valve.

[0017] Preferably, the base of the fixed bracket is provided with multiple sets of anchor bolts.

[0018] This disclosure provides a dust suppression system for construction sites, comprising: a high-pressure water pump for providing a high-pressure water source; a nozzle device connected to the high-pressure water pump for spraying the high-pressure water source into a fine water mist; a rotating arm connected to the nozzle device, capable of rotating horizontally to adjust the spray angle and range; a fixed bracket for supporting and fixing the rotating arm and adjusting its height; and a flow guide shroud disposed around the nozzle device for guiding airflow, the flow guide shroud being conical in shape with multiple guide vanes inside and multiple ventilation holes at its bottom; and the length of the rotating arm being greater than the maximum extension height of the fixed bracket. The solution provided by this disclosure can solve the problem of uneven dust suppression coverage in some areas due to frequent and uncontrollable wind changes, thus affecting dust suppression efficiency. Attached Figure Description

[0019] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0020] Figure 1 This is a schematic diagram of the axonal structure of the dust suppression system of this utility model;

[0021] Figure 2 This utility model Figure 1 A partially truncated enlarged structural diagram of the central rotating arm;

[0022] Figure 3 This utility model Figure 1 Enlarged view of the central nozzle device.

[0023] In the diagram: 1. High-pressure water pump; 11. Pressure regulating valve; 2. Sprinkler assembly; 21. Nozzle; 3. Rotating arm; 31. Segment; 32. Ball joint; 33. Sensor; 4. Fixed bracket; 41. Telescopic section; 42. Base; 43. Anchor bolts; 5. Flow guide; 51. Guide vane; 52. Ventilation hole; 6. Connecting pipeline Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0025] like Figure 1 and Figure 2 As shown, a dust suppression system for construction sites according to this application includes several key components to efficiently reduce dust generated during construction. Specifically, the system consists of a high-pressure water pump 1, a nozzle device 2, a rotating arm 3, a fixed support 4, and a flow guide hood 5.

[0026] The high-pressure water pump 1 is the core power source of the entire system, responsible for providing high-pressure water and transforming it into a fine water mist by increasing the water pressure. The output of the high-pressure water pump 1 is connected to the nozzle assembly 2, ensuring a stable and continuous supply of high-pressure water to the nozzle assembly 2. The nozzle assembly 2 is designed with high-precision nozzles 21, capable of atomizing water under specific pressure to form fine water droplets, thereby effectively capturing dust particles in the air and achieving dust suppression. The nozzle assembly 2 is flexibly positioned, typically mounted at one end of the rotating arm 3, and connected to the high-pressure water pump 1 via a high-pressure hose.

[0027] The rotating arm 3 is connected to the nozzle device 2 and can rotate freely in the horizontal direction to adjust the spray angle and range. The rotating arm 3 is designed with high-strength alloy material to ensure it is not easily damaged under high-frequency use. The middle part of the rotating arm 3 is connected to the fixed bracket 4. The rotation range and angle of the rotating arm 3 can be adjusted manually or electrically via the rotating joint on the fixed bracket 4. This design aims to adapt to the needs of different construction environments, especially when wind speeds are high, allowing for real-time adjustment of the spray direction to ensure optimal dust suppression.

[0028] The function of the fixed bracket 4 is to support and fix the rotating arm 3, while also providing the function of adjusting the height of the rotating arm 3. The fixed bracket 4 typically adopts a stable triangular or quadrangular support structure to ensure the overall stability of the system. The bottom of the fixed bracket 4 is designed with adjusting screws or lifting mechanisms, which can be adjusted manually or electrically. This allows the spraying height to be optimized according to the specific conditions of the construction site and the height of the dust source, thereby improving the applicability and flexibility of the dust suppression system.

[0029] The air deflector 5 is positioned around the nozzle assembly 2 to guide the airflow and reduce the adverse effects of wind on the nozzle assembly 2. The air deflector 5 is typically streamlined or hemispherical in shape with a smooth surface, effectively guiding and dispersing external wind force. This design ensures that the sprayed water mist maintains its predetermined direction and range under the influence of airflow, preventing it from being carried away or deflected by strong winds, thus improving the stability and reliability of the dust suppression effect.

[0030] Through the synergistic effect of the aforementioned components, especially the combined use of the rotating arm 3, the fixed support 4, and the deflector 5, the dust suppression system of this application can effectively address the problem of uneven dust coverage caused by frequent wind changes. Specifically, when wind direction and force change, the rotating arm 3 can adjust the spray angle in real time in the horizontal direction to ensure that the spray range always covers the target area. The presence of the deflector 5 further reduces the impact of external wind force on the nozzle device 2, ensuring the accuracy of water mist spraying. In addition, the height adjustment function of the fixed support 4 allows the spray height to be flexibly adjusted according to different construction environments, improving the system's adaptability and dust suppression efficiency. Through these measures, this dust suppression system can operate stably under various complex wind conditions, significantly improving the air quality of construction sites.

[0031] In one embodiment, such as Figure 2 As shown, the rotating arm 3 of a dust suppression system for construction sites according to this application has multiple segments 31, each segment 31 being connected by a ball joint 32. This design allows the rotating arm 3 to be freely adjusted in multiple dimensions, thus flexibly responding to different wind direction changes. The design of each segment 31 not only provides the multi-dimensional adjustment capability of the rotating arm 3 but also enhances the system's adaptability and ease of operation. In this way, the dust suppression system can ensure uniform coverage of the dust suppression spray on the construction site, improving the reliability of the dust suppression effect.

[0032] Specifically, each segment 31 is connected to the adjacent segment 31 via a ball joint 32. The ball joint 32 includes a ball head and a mating ball socket, allowing the ball head to rotate freely within the ball socket, thus enabling the entire rotating arm 3 to be adjusted in multiple directions. The length of each segment 31 can be customized according to actual needs to adapt to the specific conditions of different construction sites. Furthermore, each segment 31 of the rotating arm 3 can be fixed in the desired position by a locking mechanism to ensure stability and reliability during spraying. For example, the locking function can be achieved through locking bolts or a snap-fit ​​structure. In this way, even when the wind direction changes, the rotating arm 3 can quickly adjust its angle to ensure maximum dust suppression effect.

[0033] In one embodiment, continue to refer to Figure 2The fixed support 4 of a dust suppression system for construction sites disclosed in this application includes multiple telescopic sections 41, which can be quickly adjusted in height via threaded connections or hydraulic rod connections. This design allows for flexible adjustment of the height of the rotating arm 3 under different wind conditions, thereby ensuring the efficient operation of the dust suppression system. The fixed support 4 is typically installed on a relatively fixed structure on the construction site, such as the ground or the foundation of an existing building, ensuring the stability of the entire dust suppression system during use. The telescopic sections 41 of the fixed support 4 achieve telescopic functionality through tightly fitted threads or hydraulic devices, thereby adapting to different height requirements while maintaining structural stability and reliability.

[0034] In one embodiment, the telescopic section 41 of the fixed bracket 4 is connected by a threaded connection, with internal and external threads machined at the end of each telescopic section 41, allowing for length adjustment through thread engagement. In another embodiment, the telescopic section 41 of the fixed bracket 4 is connected by a hydraulic rod, with a hydraulic cylinder inside each telescopic section 41. The extension and retraction of the hydraulic rod is controlled by a hydraulic pump to achieve rapid height adjustment. Both threaded and hydraulic rod connections ensure that the rotating arm 3 can quickly adjust to the optimal working height under different wind conditions to achieve ideal dust suppression. For example, on windy days, the height of the rotating arm 3 can be lowered to reduce the impact of wind and ensure the accuracy of the spray direction; while in calm weather, the height of the rotating arm 3 can be appropriately increased to cover a larger dust suppression area.

[0035] In one embodiment, a set of sensors 33 is provided at the end of the rotating arm 3 in a dust suppression system for construction sites according to this application. These sensors monitor wind speed and direction in real time and transmit the data wirelessly to the control system. The control system automatically adjusts the angle of the rotating arm 3 based on the information fed back by the sensors 33 to achieve the best dust suppression effect. The sensors 33 are installed at the end of the rotating arm 3, enabling comprehensive detection of environmental parameters in multiple directions. This location not only ensures the sensitivity of the sensors 33 to wind speed and direction but also avoids interference from other equipment or structures on the construction site.

[0036] Sensor 33 mainly consists of a wind speed measurement module and a wind direction measurement module. These two modules work together to provide accurate wind data. The wind speed measurement module uses a common hot-film anemometer or ultrasonic anemometer, enabling rapid response to changes. The wind direction measurement module is typically a wind vane with an encoder. The encoder converts wind direction information into an electrical signal, which is then transmitted to the control system via a wireless communication module. After receiving this data, the control system calculates the optimal adjustment angle of the rotating arm 3 using a preset algorithm to ensure that the coverage area of ​​the water spray or mist matches the actual wind speed and direction conditions, thereby achieving the desired dust suppression effect.

[0037] For example, in one embodiment, after receiving wind speed and direction data from sensor 33, the control system of rotating arm 3 calculates the optimal adjustment angle using a built-in PID controller and sends a command to drive the motor to rotate rotating arm 3. The motor drive system uses a gear reduction device to smoothly and accurately adjust rotating arm 3 to the calculated angle, achieving dynamic adaptation of the dust suppression system.

[0038] Return to reference Figure 1 In one embodiment, the dust suppression system hood 5 of this application for construction sites is conical in shape, with multiple guide vanes 51 inside. These guide vanes 51 can automatically adjust their angles according to changes in wind force, thereby effectively reducing wind interference with the nozzle device 2 and ensuring the stability and uniformity of the spray direction. The conical shape of the hood 5 facilitates airflow guidance and diffusion, reducing the impact of the external environment on the spray system. The guide vanes 51 are fixed by rotating brackets mounted on the inner wall of the hood 5 and connected to a sensor control system. When a change in wind force is detected, the sensor control system adjusts the angle of the guide vanes 51 to ensure they are always in optimal working condition.

[0039] Specifically, the deflector 5 is mounted above the nozzle assembly 2 and connected to the main frame via an adjustable height bracket. The rotating bracket of the guide vane 51 is driven by a small motor, which is controlled by a sensor 33 and a controller. The sensor 33 monitors the wind speed and direction in the surrounding environment. After the data is transmitted to the controller, the controller calculates the optimal blade angle and adjusts the blade position via the motor. In this way, even if the wind force changes during actual operation, the system can automatically adjust to maintain the stability and uniformity of the spray direction.

[0040] In one embodiment, the bottom of the deflector hood 5 of a dust suppression system for construction sites according to this application is provided with multiple ventilation holes 52. These ventilation holes 52 can effectively balance the internal and external air pressure, reduce the direct impact of external wind, and ensure the working stability of the nozzle device 2 and maximize the spray coverage area. The deflector hood 5 is located above the system, and its main function is to guide and disperse the wind and airflow in the external environment, thereby reducing their impact on the nozzle device 2. The ventilation holes 52 are distributed throughout the bottom of the deflector hood 5 and are evenly arranged to better achieve the effect of air pressure balance. The design of these ventilation holes 52 is not only to ensure air circulation, but also to prevent dust and foreign objects from entering the system and affecting the normal operation of the equipment.

[0041] In one specific embodiment, the air deflector 5 can be fixed to the top of the nozzle assembly 2 by welding or bolting to ensure its robustness and sealing. The interior of the air deflector 5 can be designed as a hollow structure with an arc-shaped top to enhance its structural strength and wind resistance. The ventilation holes 52 at the bottom are of moderate size, typically between 2 and 5 cm in diameter, to ensure smooth airflow. The number of ventilation holes 52 can be adjusted according to the actual application environment and requirements; it is generally recommended that each air deflector 5 have at least five ventilation holes 52 to ensure air pressure balance.

[0042] In one embodiment, such as Figure 3 As shown, the nozzle device 2 of a dust suppression system for construction sites according to this application includes multiple nozzles 21, each of which can independently adjust its spray angle and spray size. This design allows the control system to flexibly adjust the working state of each nozzle 21 according to actual needs, thereby achieving uniform coverage of the dust suppression area. In addition, the nozzles 21 are arranged in a multi-level staggered pattern, which not only increases the spray coverage area but also effectively reduces uneven local coverage caused by wind changes.

[0043] The specific layout and adjustment mechanism of the nozzles 21 ensure the system's high efficiency and flexibility. The nozzles 21 are installed at the front end of the spray head assembly 2 and can be angled along a fixed axis. Each nozzle 21 also has an internal control valve for adjusting the spray size and pressure. The control system is connected to each nozzle 21 via wires or wireless signals and can adjust the operating parameters of each nozzle 21 in real time based on environmental monitoring data and construction requirements. For example, when a high level of dust is detected in a certain area, the spray volume of the nozzles 21 can be increased to enhance the dust suppression effect in that area. Through these technical means, the entire dust suppression system can maintain efficient operation under different environmental conditions, ensuring that the air quality at the construction site meets the required standards.

[0044] In one embodiment, in a dust suppression system for construction sites according to this application, the high-pressure water pump 1 is equipped with a pressure regulating valve 11. By adjusting the pressure at the pump outlet, the size of the fine water mist particles and the spray distance of the nozzle devices 2 can be more precisely controlled, thereby optimizing the dust suppression effect. The high-pressure water pump 1, as the core component of the entire dust suppression system, is mainly used to generate sufficient pressure to drive water through pipelines to each nozzle device 2. The pressure regulating valve 11 is installed at the outlet of the high-pressure water pump 1, and its function is to precisely control the pump outlet pressure under different operating conditions, so that the nozzle devices 2 can achieve optimal working conditions under different environments and requirements.

[0045] Specifically, the pressure regulating valve 11 mainly consists of a valve body, a valve core, and an adjusting handle. The valve body is installed at the interface between the high-pressure water pump 1 and the pipeline, and the valve core is located inside the valve body. Its opening can be adjusted by the adjusting handle, thereby controlling the pressure at the pump outlet. This design allows operators to flexibly adjust the spray intensity and spray distance of the nozzle device 2 according to the dust conditions on site, improving the applicability and efficiency of the dust suppression system. For example, in cases of high wind speed or high dust concentration, the pressure at the pump outlet can be increased, allowing the nozzle device 2 to spray fine water mist over a longer distance and a wider area, ensuring effective dust suppression.

[0046] In one embodiment, the length of the rotating arm 3 of the dust suppression system for construction sites according to this application is greater than the maximum extension height of the fixed support 4. This design allows the rotating arm 3 to cover a larger dust suppression area when fully extended, significantly improving the system's operational efficiency and flexibility. The fixed support 4 is used to support and position the rotating arm 3, ensuring its stability and reliability during operation. One end of the rotating arm 3 is fixed to the fixed support 4, and the other end is equipped with a spraying device or nozzle 21. These devices can be adjusted in angle and direction as needed to adapt to the dust suppression requirements of different working scenarios.

[0047] For example, the fixed support 4 can be designed to be telescopic to adapt to different working heights. The rotating arm 3 is made of high-strength materials to ensure durability and reliability during long-term high-load operation. To ensure that the rotating arm 3 can fully extend and cover a large area, its length is designed to be greater than the maximum height of the fixed support 4 when fully extended. In this way, even in its maximum extended state, the rotating arm 3 can still reach areas far from the center point of the fixed support 4, effectively achieving dust suppression. Specifically, precise control of the dust suppression area can be achieved by adjusting the extension height of the fixed support 4 and the rotation angle of the rotating arm 3.

[0048] In one embodiment, the fixed support 4 of a dust suppression system for construction sites according to this application is designed with multiple sets of anchor bolts 43 at its bottom. By tightening these anchor bolts 43, the fixed support 4 can be firmly fixed to the ground or building surface, thereby enhancing the stability of the entire dust suppression system and reducing the interference of external natural factors such as wind on the system. The fixed support 4 not only supports the entire dust suppression system, but also ensures that the equipment remains stable during operation, preventing the equipment from shifting or tipping over due to the influence of the external environment.

[0049] Specifically, multiple sets of anchor bolts 43 are distributed on the base 42 of the fixed bracket 4. These anchor bolts 43 are typically made of high-quality stainless steel to increase durability and corrosion resistance. Each anchor bolt 43 forms a stable support point by being firmly connected to an embedded part or the building surface. This design not only improves the overall stability and safety of the system but also adapts to the installation requirements of different ground and building surfaces. For example, in a practical application scenario, holes can be pre-drilled on the ground or building surface, and then the anchor bolts 43 can be inserted and secured using appropriate fasteners. Furthermore, the surface of the base 42 can be designed to be flat or have a specific shape to adapt to different mounting surfaces, ensuring that each anchor bolt 43 is evenly stressed, further improving the stability of the system.

[0050] In one embodiment, the connecting pipe 6 between the high-pressure water pump 1 and the nozzle device 2 of a dust suppression system for construction sites according to this application is made of a flexible material. This not only effectively absorbs the vibrations caused by wind to the system, reducing the risk of pipe breakage and thus ensuring the stable and reliable operation of the system, but also improves the system's applicability and durability. The material of the connecting pipe 6 typically has high flexibility and corrosion resistance, enabling it to operate normally under various harsh working conditions. A wide range of flexible materials can be selected, and appropriate material types, such as rubber and polyurethane, can be chosen according to actual needs.

[0051] Specifically, one end of the connecting pipe 6 is fixed to the outlet of the high-pressure water pump 1, and the other end is connected to the inlet of the sprinkler head device 2. To ensure the sealing and stability of the connection, clamps or other fasteners can be used for fixation. At the same time, a certain amount of slack should be left in the connecting pipe 6 during laying to accommodate possible displacement and deformation during construction. Furthermore, the inner diameter of the flexible pipe matches the inlet and outlet of the high-pressure water pump 1 and the sprinkler head device 2 to ensure smooth water flow. For example, when connecting the high-pressure water pump 1 and the sprinkler head device 2, the length and direction of the flexible pipe can be adjusted to adapt to different installation environments and space constraints.

[0052] In actual operation, when this device is used, firstly, the high-pressure water pump 1 draws water from the water source and pressurizes it to a high-pressure state, thereby generating a fine water mist suitable for dust suppression. Next, the high-pressure water is transported through pipelines to the nozzle device 2, which is responsible for converting the high-pressure water into a fine water mist and spraying it evenly to cover the designated dust suppression area. Simultaneously, the rotating arm 3 is connected to the nozzle device 2 and can rotate freely in the horizontal direction. This allows the nozzle device 2 to flexibly adjust the spray angle and range to adapt to different wind direction changes on the construction site. Furthermore, the fixed bracket 4 not only provides stable support and fixation for the rotating arm 3 but can also be adjusted according to different height requirements, allowing the spray range to be further expanded or precisely focused, ensuring maximum dust suppression effect. Particularly noteworthy is the crucial role played by the airflow guide 5 surrounding the nozzle device 2. It effectively guides the surrounding airflow, reduces the impact of external wind on the nozzle device 2, and maintains the stability of the spray direction and range. Even under frequent wind changes, it ensures that the fine water mist evenly covers the entire dust suppression area, significantly improving dust suppression efficiency and ambient air quality. In summary, the components of this dust suppression system work together, fully utilizing their unique functions to achieve a highly efficient dust suppression effect.

[0053] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A dust suppression system for construction sites, characterized in that, include: A high-pressure water pump (1) is used to provide a high-pressure water source; The nozzle device (2) is connected to the high-pressure water pump (1) and is used to spray high-pressure water into fine water mist. The rotating arm (3), connected to the nozzle device (2), is capable of rotating in the horizontal direction to adjust the spray angle and range; A fixed bracket (4) is used to support and fix the rotating arm (3) and can adjust the height of the rotating arm (3); A flow guide (5) is disposed around the nozzle assembly (2) to guide the airflow. The flow guide (5) is conical in shape and has multiple guide vanes (51) inside. The bottom of the flow guide (5) has multiple ventilation holes (52). The length of the rotating arm (3) is greater than the maximum extension height of the fixed bracket (4).

2. The dust suppression system for construction sites according to claim 1, characterized in that: The rotating arm (3) has multiple segments (31), and each segment (31) is connected to the other by a ball joint (32).

3. A dust suppression system for construction sites according to claim 1, characterized in that: The fixed bracket (4) includes multiple telescopic sections (41), which are connected by threaded connections or hydraulic rods.

4. A dust suppression system for construction sites according to claim 2, characterized in that: The end of the rotating arm (3) is equipped with a set of sensors (33) for real-time monitoring of wind speed and wind direction.

5. A dust suppression system for construction sites according to claim 1, characterized in that: The nozzle device (2) includes a plurality of nozzles (21).

6. A dust suppression system for construction sites according to claim 5, characterized in that: The nozzles (21) are arranged in a multi-level staggered pattern.

7. A dust suppression system for construction sites according to claim 1, characterized in that: The high-pressure water pump (1) is equipped with a pressure regulating valve (11).

8. A dust suppression system for construction sites according to claim 1, characterized in that: The base (42) of the fixed bracket (4) is provided with multiple sets of anchor bolts (43).

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