A dust falling device for a construction site

Abstract

The application relates to the technical field of construction dust reduction, and discloses a dust raising and reducing device for a building construction site, which comprises a construction protective fence and an atomizing and spraying assembly. The atomizing and spraying assembly is assembled on the construction protective fence. A photovoltaic flow guide power generation assembly is obliquely arranged on the top of the construction protective fence. The photovoltaic flow guide power generation assembly is obliquely arranged in a manner that the outer side is high and the inner side of the construction fence is low to form an inner side flow guide slope. The atomizing and spraying assembly comprises atomizing nozzles and a spraying water supply pipeline assembly. The atomizing nozzles are assembled on the high inner side end of the photovoltaic flow guide power generation assembly. A hopper-shaped wind collecting assembly is fixedly assembled on the low inner side end of the photovoltaic flow guide power generation assembly. The dust raising and reducing device has a closed loop structure of photovoltaic flow guide, inner side spraying, wind collecting and downward pressing, can block the overflow of dust and mist, avoid wetting pedestrians, rely on photovoltaic self-powered supply, simplify the equipment structure, and effectively improve the dust suppression effect of the construction site.

Description

Technical Field

[0001] This invention relates to the field of construction dust control technology, specifically to a dust control device for construction sites. Background Technology

[0002] To suppress construction dust, spray dust suppression equipment is commonly installed at construction site protective fences. This is a type of construction dust control and environmental dust removal at construction sites, and is widely used in dust control operations at various civil engineering construction sites.

[0003] Existing construction site fencing is generally equipped with a sprinkler system to suppress dust. Some fencing equipment is powered by an external power supply. Conventional sprinkler systems rely solely on spray to absorb dust. Under the influence of crosswinds at the construction site, fine water mist and floating dust can easily overflow and disperse, causing dampness and water accumulation in sidewalks and affecting passage. At the same time, the external power supply wiring structure is complex and the on-site layout is cumbersome. The simple sprinkler structure cannot collect and recover the escaped mist and dust, resulting in poor overall dust suppression and sealing, and the dust control effect is significantly limited. Therefore, a dust suppression device for construction sites is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a dust suppression device for construction sites, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust suppression device for construction sites, comprising: Construction protective fencing and atomizing spray assembly, wherein the atomizing spray assembly is mounted on the construction protective fencing, and a photovoltaic power generation assembly is installed at an angle on the top of the construction protective fencing, wherein the photovoltaic power generation assembly is arranged at an angle with the outer side higher and the inner side of the construction fencing lower to form an inner guiding slope. The atomizing spray assembly includes an atomizing nozzle and a spray water supply pipeline assembly. The atomizing nozzle is mounted on the high inner end of the photovoltaic power generation assembly, and the spray direction of the atomizing nozzle is set towards the inside of the construction protective fence. The low inner end of the photovoltaic power generation component is fixedly equipped with a bucket-shaped gradually narrowing wind collection component. The wide end of the bucket-shaped gradually narrowing wind collection component matches the lateral width of the photovoltaic power generation component and is connected to the guiding slope of the photovoltaic power generation component upward. The narrow end of the bucket-shaped gradually narrowing wind collection component is equipped with an axial flow fan. The air outlet direction of the axial flow fan is set vertically downward. The photovoltaic power generation components are electrically connected to and supply power to the atomizing spray components and axial flow fans respectively. The photovoltaic power generation components, atomizing spray components and bucket-shaped gradually converging wind collection components work together to form a closed-loop dust suppression and dust reduction structure inside the enclosure, which restricts water mist and dust to diffuse only inside the construction enclosure.

[0006] This combined structure utilizes photovoltaic power generation components to simultaneously guide and block fog and dust while supplying electricity. It relies on bucket-shaped tapering air collection components to gather escaped fog and dust and, in conjunction with axial flow fans, pressurize and settle it. This effectively resists lateral airflow interference, prevents water mist and dust from drifting outward, and eliminates dependence on external grid power. The integrated layout simplifies on-site assembly and improves the operational stability of the dust suppression system.

[0007] Preferably, the photovoltaic current-conducting power generation module is detachably connected to the top of the construction protective fence via an adjustable bracket, and the adjustable bracket is used to adjust the tilt angle of the photovoltaic current-conducting power generation module.

[0008] Preferably, the bucket-shaped tapering wind collection component is sealed and fixed to the lower inner end of the photovoltaic current guiding power generation component, and the wide end of the bucket-shaped tapering wind collection component covers the fog outlet area at the bottom of the inclined surface of the photovoltaic current guiding power generation component.

[0009] Preferably, the atomizing nozzle is staggered from the surface of the photovoltaic power generation module, and the spray path of the atomizing nozzle avoids the surface of the photovoltaic power generation module.

[0010] Preferably, the bucket-shaped tapered air collecting assembly and the axial flow fan are detachable plug-in assembly structures, and a sealing and noise reduction structure is provided at the connection between the bucket-shaped tapered air collecting assembly and the axial flow fan.

[0011] Preferably, a water collection and guiding structure is provided on the inner side of the construction protective enclosure below the bucket-shaped tapering air collection component. The water collection and guiding structure is used to collect the dust-laden water that settles down from the fan and guide it to the inner side of the construction site.

[0012] Preferably, it also includes an environmental sensing component, which is electrically connected to the atomizing spray assembly and the axial flow fan respectively, and is used to coordinate and control the start and stop of the spray and the operation status of the fan according to the environmental conditions at the construction site.

[0013] Preferably, the inner wall of the bucket-shaped tapering air collecting component is provided with an air guiding and rectifying structure, which is used to regulate the airflow direction and reduce turbulence and eddies.

[0014] Preferably, a dust-blocking edge structure is provided on the outer edge of the photovoltaic current-guiding power generation component. The dust-blocking edge structure is used to prevent the outer lateral airflow from carrying dust over the photovoltaic current-guiding power generation component.

[0015] Preferably, the atomizing spray assembly, the bucket-shaped tapering air collection assembly, and the axial flow fan are all arranged in a uniform array along the length of the construction protective enclosure; The photovoltaic power generation component includes a photovoltaic panel, an energy conversion module, and an energy storage battery. The photovoltaic panel is used to collect light energy and convert it into electrical energy. The energy conversion module is used for voltage regulation and conversion of electrical energy. The energy storage battery is electrically connected to the energy conversion module, the atomizing spray component, and the axial flow fan to realize energy storage and continuous power supply.

[0016] Compared with the prior art, the present invention provides a dust suppression device for construction sites, which has the following beneficial effects: This invention utilizes a photovoltaic power generation component to form an inner guiding slope, high-level atomizing nozzles to spray inwards, and a low-level bucket-shaped gradually converging air collection component in coordination with a vertically downward-discharging axial flow fan to achieve a closed-loop dust suppression structure inside the enclosure. The photovoltaic power generation component simultaneously serves as a water mist guiding barrier and a power supply carrier. The bucket-shaped gradually converging air collection component collects water mist and dust drifting along the guiding slope and uses the axial flow fan to press them down and settle them. This invention offers advantages such as limiting the outward diffusion of water mist and dust, self-powered operation without external power supply, and a streamlined integrated structure. It solves the problems of traditional construction site enclosure spraying systems, which are easily affected by lateral airflow, causing water mist to drift onto sidewalks and wet pedestrians, cumbersome equipment wiring, and the difficulty of using a single spraying method to control escaping dust. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a perspective view of the adjustable support and photovoltaic current-conducting power generation module structure of the present invention; Figure 3 This is a perspective view of the bucket-shaped tapered air collection assembly and axial flow fan structure of the present invention; Figure 4 This is a schematic diagram of the environmental sensing component connection system of the present invention.

[0018] In the diagram: 1. Construction protective enclosure; 2. Atomizing nozzle; 3. Photovoltaic power generation component; 4. Bucket-shaped tapered air collection component; 5. Axial flow fan; 6. Adjustable support; 7. Water collection and diversion structure; 8. Dust barrier structure. Detailed Implementation

[0019] This invention provides a technical solution: a dust suppression device for construction sites. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 ,include: Construction protective enclosure 1 and atomizing spray assembly. The atomizing spray assembly is mounted on the construction protective enclosure 1. A photovoltaic power generation assembly 3 is installed at an angle on the top of the construction protective enclosure 1. The photovoltaic power generation assembly 3 is arranged at an angle with the outer side higher and the inner side of the construction enclosure lower to form an inner guiding slope.

[0020] The atomizing spray assembly includes an atomizing nozzle 2 and a spray water supply pipeline assembly. The atomizing nozzle 2 is mounted on the high inner end of the photovoltaic current-conducting power generation assembly 3, and the spray direction of the atomizing nozzle 2 is set towards the inside of the construction protective fence 1.

[0021] A bucket-shaped tapered air collection component 4 is fixedly installed on the lower inner side of the photovoltaic power generation component 3. The wide end of the bucket-shaped tapered air collection component 4 matches the lateral width of the photovoltaic power generation component 3 and is connected to the guide slope of the photovoltaic power generation component 3 facing upward. An axial flow fan 5 is installed on the narrow end of the bucket-shaped tapered air collection component 4. The air outlet direction of the axial flow fan 5 is set vertically downward.

[0022] The photovoltaic power generation component 3 is electrically connected to the atomizing spray component and the axial flow fan 5 and supplies them with power. The photovoltaic power generation component 3, the atomizing spray component and the bucket-shaped gradually narrowing wind collection component 4 work together to form a closed-loop dust suppression and dust reduction structure inside the enclosure, which restricts water mist and dust to spread only inside the construction enclosure.

[0023] The construction protective enclosure 1 serves as the equipment's supporting base. The atomizing spray system utilizes the enclosure to provide water atomization. The photovoltaic power generation component 3 is tilted to form a guiding slope. Atomizing nozzles 2 are positioned at a high level to spray inwards, while a bucket-shaped gradually converging air collection component 4 and a vertically exiting axial flow fan 5 are located at a lower level. The photovoltaic power generation component 3 provides self-powered operation across the entire area. This multi-structure synergy creates a closed dust suppression space inside the enclosure, limiting the outward spread of water mist and dust. Through the three-dimensional coordination of the photovoltaic power generation component 3, the atomizing spray system, and the bucket-shaped gradually converging air collection component 4, a closed-loop dust suppression system is constructed, completely solving the problem of water mist and dust easily drifting onto sidewalks in traditional enclosure spraying systems. Simultaneously, the self-powered operation via photovoltaics achieves energy-saving operation, eliminating the need for external mains power, making it suitable for temporary work scenarios on construction sites, and providing stable and environmentally friendly dust suppression.

[0024] Please see Figure 1 and Figure 2 The photovoltaic (PV) power generation module 3 is detachably connected to the top of the construction protective fence 1 via an adjustable bracket 6. The adjustable bracket 6 is used to adjust the tilt angle of the PV power generation module 3. The adjustable bracket 6 adopts a detachable assembly structure, with both ends fixedly connected to the top of the construction protective fence 1 and the bottom surface of the PV power generation module 3, respectively. Through the extension and angle adjustment structure of the bracket, the tilt angle of the PV power generation module 3 can be adjusted according to the angle of sunlight and construction conditions to adapt to different usage scenarios. By flexibly adjusting the tilt angle of the PV power generation module 3 through the adjustable bracket 6, the photovoltaic light-gathering efficiency can be optimized, the power generation and energy storage effect can be improved, and the guide slope angle can be adjusted to adapt to different wind and dust conditions, optimizing the water mist guide dust suppression effect. The equipment's adaptability and practicality are greatly improved, and installation and commissioning are convenient.

[0025] Please see Figure 1 and Figure 3The bucket-shaped tapering air collecting component 4 is sealed and fixed to the lower inner end of the photovoltaic power generation component 3. The wide opening of the bucket-shaped tapering air collecting component 4 covers the mist outlet area at the bottom of the sloping surface of the photovoltaic power generation component 3. The top of the bucket-shaped tapering air collecting component 4 is seamlessly sealed to the lower inner end of the photovoltaic power generation component 3, preventing air and dust leakage. Its rectangular wide opening completely covers the water mist settling and dust diffusion area at the bottom of the sloping surface of the photovoltaic power generation component 3, fully catching the sliding and dispersed mist and dust airflow. The sealed and fully covered installation of the bucket-shaped tapering air collecting component 4 and the photovoltaic power generation component 3 completely eliminates the problem of mist and dust escaping from structural gaps, completely collects water mist and dust from the sloping surface, improves the integrity of dust collection and air gathering, ensures the sealing of the closed-loop dust suppression structure, and significantly improves the overall dust reduction and suppression effect.

[0026] Please see Figure 1 The atomizing nozzle 2 is staggered from the surface of the photovoltaic power generation module 3, and the spray path of the atomizing nozzle 2 avoids the surface of the photovoltaic power generation module 3. The atomizing nozzle 2 is installed at the high inner side of the photovoltaic power generation module 3 or in a reserved installation position, with the spray direction fixed towards the inside of the construction protective enclosure 1. The spray trajectory completely avoids the light-receiving surface of the photovoltaic power generation module 3, with no direct spray coverage area. This staggered arrangement of the atomizing nozzle 2 and the photovoltaic power generation module 3 effectively avoids water stains and dirt accumulation caused by direct spraying onto the surface, preventing obstruction of the photovoltaic light-receiving surface and reduction of power generation efficiency. While ensuring the dust suppression function, it also protects the normal operation of the photovoltaic module and extends the service life of the equipment.

[0027] Please see Figure 1 and Figure 3 The bucket-shaped tapered air collecting assembly 4 and the axial flow fan 5 are detachable plug-in assembly structures, with a sealing and noise reduction structure installed at the connection point. The narrow end of the bucket-shaped tapered air collecting assembly 4 and the axial flow fan 5 are assembled using a plug-in nesting method. A sealing and noise reduction pad is added to the connection point to form a sealing and noise reduction structure, filling the assembly gaps. This allows for quick assembly and disassembly while sealing airflow gaps and reducing operational vibration noise. The detachable plug-in structure facilitates the inspection, replacement, and cleaning of the bucket-shaped tapered air collecting assembly 4 and the axial flow fan 5, reducing equipment maintenance costs. The matching sealing and noise reduction structure reduces airflow leakage and equipment operating noise, optimizes the working environment at the construction site, and improves equipment operating stability.

[0028] A water collection and guiding structure 7 is installed on the inner side of the construction protective enclosure 1, below the bucket-shaped tapering air collection component 4. This structure collects dust-laden water settled under the fan and directs it to the inner side of the construction site. Fixed to the inner side of the construction protective enclosure 1, directly below the axial flow fan 5, the water collection and guiding structure 7 uses a trough-type structure to receive the dust-laden water settled under the axial flow fan 5. The trough guides the water to the inner side of the construction site, preventing water accumulation. The water collection and guiding structure 7 effectively collects dust-laden water generated during equipment operation, preventing muddy conditions and secondary dust re-entrainment caused by dripping and accumulating water. It achieves directional drainage and recycling of dust-laden wastewater, maintaining a clean environment around the enclosure, avoiding secondary pollution, and meeting the requirements of standardized construction site management.

[0029] Please see Figure 4 It also includes an environmental sensing component, which is electrically connected to the atomizing spray assembly and the axial flow fan 5. This component is used to adjust the start / stop of the spray system and the operation of the fan based on the environmental conditions at the construction site. The environmental sensing component integrates dust, wind speed, and humidity sensing modules to collect real-time environmental data from the construction site. Through the electrical control module, it coordinates the start / stop of the atomizing spray assembly, the spray power, and the speed of the axial flow fan 5 to achieve adaptive control under specific conditions, eliminating the need for manual operation. The environmental sensing component can automatically adjust the equipment's operating status based on factors such as dust concentration and wind speed at the construction site. It automatically increases the power of the spray and fan in cases of excessive dust or strong winds, while operating at low load under normal conditions, balancing dust reduction effectiveness and energy efficiency, demonstrating a high degree of intelligence.

[0030] Please see Figure 1 and Figure 3 The inner wall of the bucket-shaped tapered air collecting assembly 4 is equipped with an air guiding and rectifying structure. This structure is used to regulate the airflow direction and reduce turbulence and eddies. The air guiding and rectifying structure is evenly distributed on the inner wall of the bucket-shaped tapered air collecting assembly 4, employing regular guide patterns or a guide grid structure to organize and regulate the chaotic airflow and dust entering the cavity, unifying the airflow direction and eliminating internal eddies and turbulence. The air guiding and rectifying structure inside the bucket-shaped tapered air collecting assembly 4 effectively regulates the internal airflow, reducing wind power loss and dust retention caused by turbulence and eddies, improving the fan's air pressure utilization rate, making the downward airflow more uniform and stable, enhancing the dust settling and recovery effect, and achieving higher dust reduction efficiency.

[0031] Please see Figure 1A dust-blocking edge structure 8 is installed on the outer edge of the photovoltaic power generation module 3. This structure prevents lateral airflow from carrying dust over the photovoltaic power generation module 3. The dust-blocking edge structure 8 is integrally formed or fixedly installed on the outer edge of the photovoltaic power generation module 3, forming a raised barrier structure. This prevents strong lateral winds from carrying dust over the photovoltaic power generation module 3, blocking the escape and backflow paths of dust. The dust-blocking edge structure 8 effectively resists lateral wind interference, preventing dust from outside the site from overturning the photovoltaic power generation module 3 and entering the sidewalk. Simultaneously, it prevents internal dust from being carried out by lateral winds, providing a double-enhanced closed-loop dust suppression effect. It is suitable for windy and harsh construction environments and has strong anti-interference capabilities.

[0032] The atomizing spray assembly, the bucket-shaped gradually narrowing air collection assembly 4, and the axial flow fan 5 are all uniformly arranged in an array along the length of the construction protective enclosure 1.

[0033] The photovoltaic (PV) power generation module 3 includes a photovoltaic panel, an energy conversion module, and an energy storage battery. The photovoltaic panel collects light energy and converts it into electrical energy. The energy conversion module is used for voltage regulation and conversion of electrical energy. The energy storage battery is electrically connected to the energy conversion module, the atomizing spray module, and the axial flow fan 5 to achieve energy storage and continuous power supply. The atomizing spray module, the bucket-shaped tapering air collection module 4, and the axial flow fan 5 are evenly arrayed along the length of the construction protective fence 1, fully covering the dust suppression area of ​​the fence. The PV power generation module 3, through voltage regulation and conversion by the energy conversion module and energy storage battery, continuously supplies power to all electrical structures. The array-style deployment can achieve dust suppression throughout the entire construction protective fence 1 without dead angles, avoiding local dust suppression gaps. The complete photovoltaic conversion and energy storage structure of the PV power generation module 3 enables the equipment to be self-sufficient in power supply, eliminating dependence on mains power, saving energy and reducing consumption, and adapting to various temporary construction fence scenarios.

[0034] This solution: The core of this equipment relies on the construction protective enclosure 1 to build an integrated closed-loop dust suppression and self-powered system. Through the coupling of multiple structural functions, it achieves controllable management of dust and water mist at the construction site. During equipment operation, the photovoltaic power generation module 3 continuously collects solar energy, which is then converted and stored in the energy storage battery after voltage regulation by the power conversion module. This provides continuous power for the atomizing spray module, axial flow fan 5, and environmental sensing module, eliminating the need for external municipal power and enabling independent energy-saving operation. Simultaneously, the inclined structure of the photovoltaic power generation module 3, with a higher outer side and a lower inner side, forms a stable guiding slope and an upper closed barrier. Combined with the outer dust-blocking edge structure 8, it effectively prevents lateral natural winds from carrying dust and water mist over the enclosure and drifting outwards, limiting the spread of dust and mist at the source and providing basic structural support for the inner closed-loop dust suppression.

[0035] The equipment relies on a dual-layer dust suppression mechanism formed by the atomizing spray component, the bucket-shaped tapering air collection component 4, and the axial flow fan 5, achieving precise settling and recovery of mist and dust. The atomizing nozzles 2 of the atomizing spray component spray water inwards from the high inner end of the photovoltaic power generation component 3, with the water mist only spreading inside the construction protective enclosure 1, initially adsorbing suspended dust at the construction site; the staggered arrangement of the atomizing nozzles 2 can avoid the problem of scale formation on the panel surface, ensuring stable photovoltaic power generation. The scattered and floating residual mist and dust slide down the guide slope of the photovoltaic power generation component 3 and are uniformly collected by the bucket-shaped tapering air collection component 4 below, which fully covers the area. After the airflow is regulated by the inner guide and rectification structure, the axial flow fan 5 outputs high-pressure airflow vertically downwards, which quickly presses down and settles the mist and dust, completely preventing the escape of mist and dust, forming a complete dust suppression process of spray adsorption, air collection and gathering, and wind pressure settling.

[0036] This equipment possesses adaptive control and stable operation and maintenance capabilities, enabling continuous operation under complex construction site conditions. Environmental sensing components monitor real-time environmental parameters such as dust concentration, wind speed, and humidity at the construction site, dynamically adjusting the start / stop and mist output of the atomizing spray components, as well as the operating speed of the axial flow fan 5. It automatically increases operating power under high wind and dust conditions, and operates at low load and energy efficiency under normal conditions. Dust-laden water generated by sedimentation can be directed to the inner side of the construction site through the water collection and guiding structure 7 inside the construction protective enclosure 1, preventing water accumulation and secondary dust generation. Each assembly structure of the equipment adopts a detachable and sealed design, balancing noise reduction, dust leakage prevention, and convenient maintenance. The array-style full-area deployment method achieves complete coverage of the enclosure without blind spots, making it suitable for long-term standardized dust suppression operations at various construction sites.

Claims

1. A dust suppression device for construction sites, characterized in that, include: Construction protective enclosure (1) and atomizing spray assembly, wherein the atomizing spray assembly is mounted on the construction protective enclosure (1), and a photovoltaic power generation assembly (3) is installed at the top of the construction protective enclosure (1) at an angle. The photovoltaic power generation assembly (3) is arranged at an angle with the outer side higher and the inner side of the construction enclosure lower to form an inner guide slope. The atomizing spray assembly includes an atomizing nozzle (2) and a spray water supply pipeline assembly. The atomizing nozzle (2) is mounted on the high inner end of the photovoltaic power generation assembly (3), and the spraying direction of the atomizing nozzle (2) is set towards the inside of the construction protection fence (1). The low inner end of the photovoltaic power generation component (3) is fixedly equipped with a bucket-shaped gradually narrowing wind collection component (4). The wide end of the bucket-shaped gradually narrowing wind collection component (4) matches the horizontal width of the photovoltaic power generation component (3) and is connected to the guiding slope of the photovoltaic power generation component (3) upward. The narrow end of the bucket-shaped gradually narrowing wind collection component (4) is equipped with an axial flow fan (5). The air outlet direction of the axial flow fan (5) is set vertically downward. The photovoltaic power generation component (3) is electrically connected to the atomizing spray component and the axial flow fan (5) respectively and supplies them with power. The photovoltaic power generation component (3), the atomizing spray component and the bucket-shaped gradually shrinking wind collection component (4) work together to form a closed-loop dust suppression and dust reduction structure inside the enclosure, which restricts water mist and dust to diffuse only inside the construction enclosure.

2. The dust suppression equipment for construction sites according to claim 1, characterized in that: The photovoltaic power generation component (3) is detachably connected to the top of the construction protective fence (1) via an adjustable bracket (6), and the adjustable bracket (6) is used to adjust the tilt angle of the photovoltaic power generation component (3).

3. The dust suppression equipment for construction sites according to claim 1, characterized in that: The bucket-shaped gradually narrowing wind collection component (4) is sealed and fixed to the lower inner end of the photovoltaic current guiding power generation component (3), and the wide end of the bucket-shaped gradually narrowing wind collection component (4) covers the fog outlet area at the bottom of the inclined surface of the photovoltaic current guiding power generation component (3).

4. The dust suppression equipment for construction sites according to claim 1, characterized in that: The atomizing nozzle (2) is staggered with the surface of the photovoltaic power generation component (3), and the spray path of the atomizing nozzle (2) avoids the surface of the photovoltaic power generation component (3).

5. A dust suppression device for construction sites according to claim 1, characterized in that: The bucket-shaped tapered air collection assembly (4) and the axial flow fan (5) are detachable plug-in assembly structures, and a sealing and noise reduction structure is provided at the connection between the bucket-shaped tapered air collection assembly (4) and the axial flow fan (5).

6. The dust suppression equipment for construction sites according to claim 1, characterized in that: The inner side of the construction protective enclosure (1) is provided with a water collection and guiding structure (7) below the bucket-shaped tapering air collection component (4). The water collection and guiding structure (7) is used to collect the dust-laden water that settles down from the fan and guide it to the inner side of the construction site.

7. A dust suppression device for construction sites according to claim 1, characterized in that: It also includes an environmental sensing component, which is electrically connected to the atomizing spray assembly and the axial flow fan (5) respectively, and is used to control the start and stop of the spray and the operation status of the fan according to the environmental conditions of the construction site.

8. A dust suppression device for construction sites according to claim 1, characterized in that: The inner wall of the bucket-shaped tapering air collection component (4) is provided with an air guiding and rectifying structure, which is used to regulate the airflow direction and reduce turbulence and eddies.

9. A dust suppression device for construction sites according to claim 1, characterized in that: The outer edge of the photovoltaic power generation component (3) is provided with a dust-blocking edge structure (8), which is used to prevent the outer lateral airflow from carrying dust over the photovoltaic power generation component (3).

10. A dust suppression device for construction sites according to claim 1, characterized in that: The atomizing spray assembly, the bucket-shaped gradually converging air collection assembly (4) and the axial flow fan (5) are all uniformly arranged in an array along the length of the construction protection fence (1); The photovoltaic power generation component (3) includes a photovoltaic panel, an energy conversion module and an energy storage battery. The photovoltaic panel is used to collect light energy and convert it into electrical energy. The energy conversion module is used for voltage regulation and conversion of electrical energy. The energy storage battery is electrically connected to the energy conversion module, the atomizing spray component and the axial flow fan (5) to realize energy storage and continuous power supply.

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