Spraying dust removal device for constructional engineering
By designing a spray dust suppression device with adjustable brackets and drive components, combined with permanent magnetization and a powerful fan, the problems of convenience and water consumption of existing devices in large-scale dust suppression are solved, achieving efficient and flexible spray dust suppression effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 贵州装备制造职业学院
- Filing Date
- 2026-04-13
- Publication Date
- 2026-05-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing dust suppression spray devices used in construction projects require multiple adjustments to the water mist spray direction and pitch angle when operating over large dust areas, making them inconvenient and inefficient to use, and they also consume a lot of water.
A spray dust removal device including an adjustable bracket and a drive component was designed. The drive component can simultaneously adjust the tilt angle of multiple nozzles to achieve the retraction or opening of the atomizing nozzles. Combined with a permanent magnetization mechanism and a powerful fan, it can improve the water mist spray pattern and range to adapt to the dust removal needs of different construction scenarios.
It achieves efficient and flexible spray dust suppression, adapts to the spraying needs of different scenarios, reduces water waste, and improves the effect and range of spray dust suppression.
Smart Images
Figure CN122006379A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of dust removal technology in construction engineering, and in particular to a spray dust removal device for construction engineering. Background Technology
[0002] Construction sites are prone to generating large amounts of dust during processes such as earthwork excavation, waste transportation, material stockpiling, and scaffolding operations. This not only pollutes the surrounding atmosphere but also harms the respiratory health of construction workers. Furthermore, dust accumulation can affect the normal operation of construction machinery and equipment, failing to meet industry requirements for green and environmentally friendly construction. Therefore, spray dust suppression has become one of the core methods for dust control at construction sites.
[0003] In existing technologies, traditional spray dust suppression devices for construction engineering (such as fog cannons) mostly only allow adjustment of the spray direction and pitch angle of the water mist. However, in practical use, at least the following shortcomings have been found: Since the nozzle diameter of the fog cannon is fixed, the area of the sprayed water mist is limited by the nozzle diameter, resulting in a small effective range for dust suppression. Even with the assistance of a fan, the water mist is only sprayed in a long column shape, and the spray direction is consistent with the axial direction of the nozzle. This is insufficient for long and narrow areas of dust suppression. For large dust suppression areas, the spray direction and pitch angle of the water mist must be adjusted multiple times, which is inconvenient and inefficient. Furthermore, the dust suppression time is prolonged, and water consumption is relatively high. Therefore, we propose a spray dust suppression device for construction engineering to solve the above problems.
[0004] Based on existing technology searches, the following known technical solutions exist: Prior art 1: A spray dust suppression device for construction engineering, authorized by publication number CN210473410U, includes a water supply device, a spray generation device, and a fog cannon steering device. The water supply device is fixedly connected to the left side of the fog cannon steering device, and the spray generation device is rotatably connected to the upper end of the fog cannon steering device. However, the nozzle diameter of this prior art fog cannon is fixed, and the area of the sprayed water mist is limited by the nozzle diameter, resulting in a small effective range for dust suppression. For large dust suppression areas, the direction and pitch angle of the water mist spray must be adjusted multiple times, making it inconvenient and inefficient to use. Furthermore, the dust suppression time is prolonged, and water resources are consumed in large quantities.
[0005] Prior art 2: Application publication number CN112044208A discloses a spray dust suppression device for construction engineering, comprising a drive shaft, water tank, powerful fan, water spray structure, guide plate, and rotating disc structure. A transmission box is mounted on the left side of the upper surface of the frame, and a drive shaft is mounted on the left surface of the transmission box. The transmission box is connected to an air pump via a belt. The air pump is mounted on the upper surface of the frame, located to the right of the transmission box. A generator is mounted on the upper surface of the frame, located to the right of the air pump, and is connected to the transmission box via a belt. However, although this prior art includes a guide plate, it can only spray water mist for limited, localized dust suppression. For larger dust suppression areas, it still requires multiple adjustments to the direction and pitch angle of the water mist spray, as well as the rotation angle of the guide plate. This makes it inconvenient and inefficient to use, and the spray dust suppression time is prolonged. Furthermore, the guide plate can block some water mist, forming water droplets, resulting in significant water consumption.
[0006] Existing technology 3: CN120346611B discloses a spray dust suppression device and its usage method for construction engineering. The spray dust suppression device includes a main pipe with a fan installed inside. An annular plate is fixedly installed on the outer surface of the front end of the main pipe. Several movable pipes are evenly distributed and movably connected to the annular plate. Each movable pipe has an arc-shaped pipe fixedly connected to its front end, and several first nozzles are installed on the arc-shaped pipes. A position adjustment component is provided at the rear end of the movable pipes. An annular pipe is located near the front end of the main pipe's inner cavity, and several second nozzles are installed on the annular pipe. A water supply component is provided on the outer wall of the main pipe. However, while this existing technology can adjust the spacing between the first nozzles on the arc-shaped pipes, it can only be used reasonably when the diameter formed by the multiple arc-shaped pipes is adjusted to be smaller than the diameter of the annular plate. This limits its application to spray dust suppression over longer distances. For large dust suppression areas, it still requires multiple adjustments to the direction and pitch angle of the water mist spray, as well as the rotation angle of the guide plate. It is not convenient or efficient to use, and the spray dust suppression time is prolonged, consuming a significant amount of water.
[0007] The above search results show that the existing technical solutions do not affect the novelty of the present invention; and the combination of the existing technical solutions does not destroy the inventiveness of the present invention. Summary of the Invention
[0008] The purpose of this application is to provide a spray dust suppression device for construction engineering, which achieves efficient, flexible and water-saving spray dust suppression at construction sites, improving the dust suppression effect and range, and adapting to the needs of different scenarios.
[0009] The above-mentioned technical objective of this application is achieved through the following technical solution: a spray dust suppression device for construction engineering, comprising a mobile vehicle body, an adjustable bracket on the top of the mobile vehicle body, a cannon barrel mounted on the adjustable bracket, both sides of the cannon barrel being open, a disc base fixedly connected to the right side of the cannon barrel, a plurality of equally spaced annularly distributed grooves being formed on the circumferential side of the disc base, a pin shaft being rotatably mounted in each of the plurality of grooves, a connecting seat being fixedly sleeved on each of the plurality of pins, and an inclined support being fixedly mounted on each of the plurality of connecting seats. The cannon is equipped with nozzles fixedly mounted on multiple support plates. Each nozzle has a permanent magnetization mechanism at its right end, and each permanent magnetization mechanism has an atomizing nozzle on its right side. A drive assembly is located on the right side of the disc base, which is used to simultaneously adjust the tilt angle of multiple nozzles. A powerful fan is fixedly mounted on the left side of the cannon barrel. The disc base has multiple air outlets arranged in an evenly spaced ring, which are connected to the inside of the cannon barrel. A water supply mechanism is located between the moving vehicle and the disc base, which is used to deliver clean water to the multiple nozzles.
[0010] A further configuration of this application is as follows: the drive assembly includes an electric telescopic rod 1, a disc, multiple pins 2, multiple connecting rods, multiple hinge seats 1, and multiple pins 3. The electric telescopic rod 1 is fixedly installed at the center of the right side of the disc seat. The disc is fixedly installed at the output shaft end of the electric telescopic rod 1. Multiple grooves 2 are evenly spaced and distributed in annular pattern on the circumferential side of the disc. Multiple pins 2 are rotatably installed in their respective grooves 2. The right ends of multiple connecting rods are fixedly sleeved on their respective pins 2. Multiple hinge seats 1 are fixedly sleeved on their respective nozzles. Multiple pins 3 are rotatably installed on their respective hinge seats 1. The left ends of multiple connecting rods are fixedly sleeved on their respective pins 3, and all multiple connecting rods are inclined.
[0011] A further feature of this application is that two guide rods are fixedly installed on the right side of the disc base, an electric telescopic rod is located between the two guide rods, the disc is slidably sleeved on the two guide rods, and a limit stop is fixedly installed on the right end of each of the two guide rods.
[0012] A further configuration of this application is as follows: the mobile vehicle body includes a cross plate, a water tank, four universal wheels with brakes and a handrail. The water tank is fixedly installed on the top of the cross plate, the four universal wheels with brakes are respectively fixedly installed at the four bottom corners of the cross plate, the handrail is fixedly installed on the left outer wall of the water tank, a water level viewing window is fixedly installed on the front side wall of the water tank, and a water inlet is opened on the top of the water tank, with a stopcock threaded into the water inlet.
[0013] The further configuration of this application is as follows: the adjustable bracket includes an electric rotary table, a U-shaped frame, two rotating shafts, a support seat, a hinge seat three, a pin four, an electric telescopic rod two, a hinge seat four, and a pin five. The electric rotary table is fixedly installed on the top of the water tank, the U-shaped frame is fixedly installed on the top of the electric rotary table, the two rotating shafts are respectively rotatably installed on the top two sides of the U-shaped frame, the barrel is located between the two rotating shafts, and the ends of the two rotating shafts that are close to each other are fixedly connected to the outer wall of the barrel. The support seat is fixedly installed on the bottom right side of the U-shaped frame, the hinge seat three is fixedly installed on the top of the support seat, the pin four is rotatably installed on the hinge seat three, the electric telescopic rod two is fixedly sleeved on the pin four and is inclined, the hinge seat four is fixedly installed on the bottom outer wall of the barrel, the pin five is rotatably installed on the hinge seat four, and the output shaft end of the electric telescopic rod two is fixedly sleeved on the pin five.
[0014] A further configuration of this application is as follows: the permanent magnet magnetization mechanism includes an annular permanent magnet core, a non-magnetic water-proof inner sleeve, and a magnetic outer sleeve. The non-magnetic water-proof inner sleeve is fixedly installed on the inner ring wall of the annular permanent magnet core, and the magnetic outer sleeve is fixedly sleeved on the outer ring wall of the annular permanent magnet core. The left end of the magnetic outer sleeve is detachably and fixedly connected to the right end of the nozzle, and the right end of the magnetic outer sleeve is detachably and fixedly connected to the water inlet end of the atomizing nozzle. The water inlets of both the nozzle and the atomizing nozzle are connected to the non-magnetic water-proof inner sleeve.
[0015] A further configuration of this application is as follows: the water conveying mechanism includes a booster pump, a pumping pipe, a first water conveying hose, an annular water distribution pipe, a first water pipe connector, multiple second water pipe connectors, and multiple second water conveying hoses. The booster pump is fixedly installed on the top of the water tank. One end of the pumping pipe is fixedly connected to the suction end of the booster pump, and the other end of the pumping pipe extends into the water tank. One end of the first water conveying hose is fixedly connected to the discharge end of the booster pump. The annular water distribution pipe is fixedly installed on the left side wall of the disc seat. The first water pipe connector is fixedly connected to the bottom left side of the annular water distribution pipe and is connected to the inside of the annular water distribution pipe. The other end of the first water conveying hose is fixedly connected to the first water pipe connector. Multiple second water pipe connectors are all fixedly installed on the circumferential side of the annular water distribution pipe and are distributed in an evenly spaced ring. Multiple second water pipe connectors are all connected to the inside of the annular water distribution pipe. One end of each second water conveying hose is fixedly connected to the corresponding second water pipe connector, and the other end of each second water conveying hose is fixedly connected to the left end of the corresponding nozzle.
[0016] A further configuration of this application is as follows: a gas supply mechanism is provided on the right side of the disc base. The gas supply mechanism is used to guide the airflow discharged from multiple air outlets to the vicinity of multiple atomizing nozzles. The gas supply mechanism includes multiple air pipe connectors I, multiple air supply hoses, multiple support frames, multiple annular air distribution pipes, multiple air outlet nozzles, and multiple air pipe connectors II. Multiple air pipe connectors I are all fixedly installed on the right side wall of the disc base. Multiple air pipe connectors I are respectively connected to the corresponding air outlets. One end of multiple air supply hoses is respectively fixedly connected to the corresponding air pipe connectors I. Multiple support frames are respectively fixedly sleeved on the corresponding nozzles. Multiple annular air distribution pipes are respectively fixedly installed on the corresponding support frames. Multiple air outlet nozzles are fixedly connected to the right side of multiple annular air distribution pipes and are evenly distributed. Multiple air pipe connectors II are respectively fixedly installed on the left side of the corresponding annular air distribution pipes. The other end of multiple air supply hoses is respectively fixedly connected to the corresponding air pipe connectors II.
[0017] A further feature of this application is that two limiting rings are fixedly installed on the outer wall of the same nozzle, and one end of the gas delivery hose moves through the two limiting rings in sequence.
[0018] A further feature of this application is that the vent is funnel-shaped, and the inner diameter of the vent decreases sequentially from left to right.
[0019] This application includes at least one of the following beneficial technical effects: This application designs a driving component capable of simultaneously adjusting the tilt angle of multiple nozzles, enabling the multiple atomizing nozzles to retract or expand (similar to petal-like movement), thus altering the water mist spray pattern. By increasing the opening angle of the multiple atomizing nozzles, the atomization spray angle increases, the water mist spray area expands, and the water mist coverage becomes wider, making it suitable for large-area coarse dust removal scenarios such as construction site fencing spraying, dust suppression in silo areas, and open area spraying. Furthermore, by gradually retracting the multiple atomizing nozzles, the atomization spray angle narrows, the water pressure becomes more concentrated, and the water mist range extends further. The denser atomized particles make it suitable for remote spraying, targeted dust suppression on machinery, and precise dust removal at high-concentration dust sources (such as slag unloading ports). Furthermore, when multiple atomizing nozzles are in open mode, the sprayed water mist diffuses in a planar pattern, effectively suppressing low-concentration dust across the entire area without the need for high-frequency spraying, thus reducing water waste. When multiple atomizing nozzles are in closed mode, the concentrated water pressure results in denser atomization, improving the precision dust removal efficiency and effectiveness at high-concentration dust sources. This allows for on-demand water mist spraying and the rational allocation and utilization of water resources.
[0020] With the synergistic effect of the adjustable bracket drive components, this application can adjust the direction, angle and shape of water mist spraying, adapt to the dust removal needs of different construction sites as needed, is easy to operate and labor-saving, has a wide range of applications, and improves the dust suppression effect and range of spraying.
[0021] This application designs a permanent magnetization mechanism that can magnetize and modify water flow, breaking down large molecular clusters in the water into smaller ones, reducing surface tension, and improving the wetting and adhesion ability of the water mist sprayed from the atomizing nozzle to dust. It also atomizes the water into a fine and uniform mist, which is then sprayed onto the dusty areas of the construction site, further enhancing the dust suppression effect.
[0022] This application, through the synergistic action of a powerful fan and an air delivery mechanism, can effectively propel the water mist sprayed from multiple atomizing nozzles, further enhancing the water mist diffusion effect and range, making the water mist more evenly dispersed and condensing with dust and particulate matter in the air, thereby further improving the dust suppression effect and range of the spray. Attached Figure Description
[0023] Figure 1 This is a front-view perspective view of the first embodiment of the spray dust removal device for construction engineering provided in this application; Figure 2 This is a three-dimensional structural diagram of the disc base, spray pipe, atomizing nozzle and drive assembly in the first embodiment of the spray dust removal device for construction engineering provided in this application; Figure 3 yes Figure 2 A schematic diagram of the right-side stereoscopic structure; Figure 4 yes Figure 2 A schematic diagram of the left-side stereoscopic structure; Figure 5 This is a front sectional three-dimensional structural schematic diagram of the disc base in the first embodiment of the spray dust removal device for construction engineering provided in this application; Figure 6 This is a three-dimensional structural schematic diagram of the water conveying mechanism in the first embodiment of the spray dust removal device for construction engineering provided in this application; Figure 7 This is a three-dimensional structural diagram of the adjustable bracket in the first embodiment of the spray dust removal device for construction engineering provided in this application; Figure 8 This is a left-side cross-sectional three-dimensional structural schematic diagram of the permanent magnetization mechanism in the first embodiment of the spray dust removal device for construction engineering provided in this application; Figure 9 This is a front view sectional three-dimensional structural schematic diagram of the barrel in the first embodiment of the spray dust removal device for construction engineering provided in this application; Figure 10 This is a front-view perspective view of the second embodiment of the spray dust removal device for construction engineering provided in this application; Figure 11 This is a three-dimensional structural diagram of the disc base, spray pipe, atomizing nozzle, drive assembly and air delivery mechanism in the second embodiment of the spray dust removal device for construction engineering provided in this application; Figure 12This is a three-dimensional structural schematic diagram of the air conveying mechanism in the second embodiment of the spray dust removal device for construction engineering provided in this application; Figure 13 This is a three-dimensional structural diagram of the disc base, spray pipe, atomizing nozzle, drive assembly, water supply mechanism and air supply mechanism in the second embodiment of the spray dust removal device for construction engineering provided in this application.
[0024] In the diagram, 1. Moving vehicle body; 101. Horizontal plate; 102. Water tank; 1021. Water level viewing window; 1022. Cocktail valve; 103. Universal caster with brake; 104. Handrail; 2. Adjustable bracket; 201. Electric rotating platform; 202. U-shaped frame; 203. Rotating shaft; 204. Support base; 205. Hinge base three; 206. Pin four; 207. Electric telescopic rod two; 208. Hinge base four; 209. Pin five; 3. Cannon barrel; 4. Disc base; 5. Groove one; 6. Pin one; 7. Connecting seat; 8. Support plate; 9. Nozzle; 10. Permanent magnet magnetization mechanism; 1001. Annular permanent magnet core; 1002. Non-magnetic waterproof inner sleeve; 1003. Magnetic outer shell; 11. Atomizing nozzle; 2. Electric telescopic rod one; 13. Disc; 14. Groove two; 15. Pin two; 16. Connecting rod; 17. Hinge seat one; 18. Pin three; 19. Guide rod; 20. Limiting block; 21. Powerful fan; 22. Air outlet; 23. Water supply mechanism; 2301. Booster water pump; 2302. Water suction pipe; 2303. Water supply hose one; 2304. Annular water distribution pipe; 2305. Water pipe connector one; 2306. Water pipe connector two; 2307. Water supply hose two; 24. Air supply mechanism; 2401. Air pipe connector one; 2402. Air supply hose; 2403. Support frame; 2404. Annular air distribution pipe; 2405. Air outlet nozzle; 2406. Air pipe connector two; 25. Limiting ring. Detailed Implementation
[0025] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0026] First Embodiment See Figures 1-9In the first embodiment of this application, the spray dust suppression device for construction engineering includes: a mobile vehicle body 1, an adjustable bracket 2 on the top of the mobile vehicle body 1, a cannon 3 on the adjustable bracket 2, the adjustable bracket 2 being used to adjust the pitch angle and water mist spray direction of the cannon 3 according to usage requirements, the left and right sides of the cannon 3 being open structures, a disc seat 4 being fixedly connected to the right side of the cannon 3, the peripheral side of the disc seat 4 having multiple equally spaced annularly distributed grooves 5, each groove 5 having a pin 6 rotatably mounted in each of the multiple grooves 5, each pin 6 having a connecting seat 7 fixedly sleeved on each of the multiple pins 6, and each connecting seat 7 having an inclined device fixedly mounted on each of the multiple connecting seats 7. The system includes multiple support plates 8, each with a fixed nozzle 9. Each nozzle 9 has a permanent magnetization mechanism 10 at its right end, and each permanent magnetization mechanism 10 has an atomizing nozzle 11 on its right side. The atomizing nozzle 11 can be a stainless steel high-pressure atomizing nozzle with a droplet size of 10μm-80μm. Different droplet sizes can be selected to suit different dust removal scenarios. The permanent magnetization mechanism 10 magnetizes the water supplied to the atomizing nozzle 11, resulting in better atomization of the magnetized water, producing finer and more uniform water mist particles that can more effectively contact and absorb dust particles in the air. The addition significantly improves dust settling efficiency and reduces secondary dust re-entrainment, making it particularly suitable for the treatment of fine particulate matter (PM2.5, PM10) in construction projects, improving the working environment at construction sites. Furthermore, the magnetized water molecule clusters become smaller, reducing the surface tension of the water. This enhances the wetting and spreading ability of the droplets on dust without the need for wetting agents in clean water, making it suitable for scenarios where the use of chemical agents is restricted (e.g., construction sites with metal machinery). A drive assembly is located on the right side of the disc base 4, used to simultaneously adjust the tilt angle of multiple nozzles 9. A fixed installation is located on the left side of the barrel 3. The powerful fan 21 has multiple equally spaced annularly distributed air outlets 22 through the disc base 4. These outlets 22 are all connected to the interior of the nozzle 3. When the powerful fan 21 is powered on, the airflow generated passes through the interior of the nozzle 3 and is evenly dispersed through the outlets 22. This simultaneously propels the water mist sprayed from multiple atomizing nozzles 11, allowing the water mist to quickly spread and cover a larger area of the construction site, improving the dust removal range and effectiveness. It should be noted that the powerful fan 21 can be selected with a power of 1.1kW-1.5kW, a rated wind pressure of 200Pa-250Pa, and a rated air volume of 1200m³ / h. 3 / h-1500m 3 Centrifugal fan with a capacity of / h.
[0027] In this embodiment, the drive assembly includes an electric telescopic rod 12, a disc 13, multiple pins 15, multiple connecting rods 16, multiple hinge seats 17, and multiple pins 18. The electric telescopic rod 12 is fixedly installed at the center of the right side of the disc seat 4. The disc 13 is fixedly installed at the output shaft end of the electric telescopic rod 12. The circumferential side of the disc 13 has multiple equally spaced annularly distributed grooves 14. The multiple pins 15 are rotatably installed in the corresponding grooves 14. The right ends of the multiple connecting rods 16 are fixedly sleeved on the corresponding pins 15. The multiple hinge seats 17 are fixedly sleeved on the corresponding nozzles 9. The multiple pins 18 are rotatably installed on the corresponding hinge seats 17. The left ends of the multiple connecting rods 16 are fixedly... The nozzles are fixedly mounted on the corresponding pin 18, and multiple connecting rods 16 are inclined. Utilizing the telescopic characteristics of the electric telescopic rod 12, the disc 13 can be driven to move linearly, which in turn drives multiple connecting rods 16 to move in tandem. Through the coordinated cooperation of the hinge seat 17, pin 6, connecting seat 7, pin 2 15, and pin 3 18, the tilt angle of each nozzle 9 can be adjusted simultaneously, so that multiple atomizing nozzles 11 can form a petal-like closing or opening structure. By adjusting the opening and closing degree of multiple atomizing nozzles 11, the water mist spray pattern can be changed. The water mist spray angle and range can be flexibly adjusted according to the dust height and diffusion direction at the construction site to adapt to the dust removal needs of different heights (such as low-rise operations and high-rise scaffolding dust) and different ranges.
[0028] In this embodiment, the larger the opening angle of the multiple atomizing nozzles 11, the larger the atomization spray angle, the larger the water mist spray area, and the wider the water mist coverage. This makes it suitable for large-area coarse dust removal scenarios such as construction site fencing spraying, dust suppression in silo areas, and open area spraying. When the multiple atomizing nozzles 11 are gradually closed, the atomization spray angle narrows, the water pressure becomes more concentrated, the water mist range is longer, and the atomized particles are denser. This makes it suitable for long-distance spraying, fixed-point dust suppression of operating machinery, and precise fine dust removal scenarios at high-concentration dust points (such as slag unloading ports). Thus, it can be seen that when the multiple atomizing nozzles 11 are in the open mode, the sprayed water mist diffuses in a planar manner, which is suitable for the full-area suppression of low-concentration dust, eliminating the need for high-frequency spraying and reducing water waste. When the multiple atomizing nozzles 11 are in the closed mode, the concentrated water pressure makes the water particles atomized more densely, which can accurately capture PM2.5 / PM10 fine particulate matter, improve the precision dust removal efficiency and effect at high-concentration dust points, and achieve the effect of spraying water mist on demand and rationally allocating and utilizing water resources.
[0029] In this embodiment, two guide rods 19 are fixedly installed on the right side of the disc base 4. An electric telescopic rod 12 is located between the two guide rods 19. The disc 13 is slidably sleeved on the two guide rods 19. Limiting blocks 20 are fixedly installed on the right ends of the two guide rods 19. By designing the two guide rods 19, the movement direction of the disc 13 is guided, ensuring the smoothness of the linear movement of the disc 13. The design of the limiting blocks 20 can block and limit the movement stroke of the disc 13, preventing the disc 13 from detaching from the guide rods 19.
[0030] In this embodiment, the mobile vehicle body 1 includes a cross plate 101, a water tank 102, four universal casters 103 with brakes, and a handrail 104. The water tank 102 is fixedly installed on the top of the cross plate 101, and the four universal casters 103 with brakes are respectively fixedly installed at the four bottom corners of the cross plate 101. The handrail 104 is fixedly installed on the left outer wall of the water tank 102. A water level viewing window 1021 is fixedly installed on the front side wall of the water tank 102. A water inlet is provided on the top of the water tank 102, and a stopcock 1022 is threaded into the water inlet. The design of the four universal casters 103 with brakes and the handrail 104 facilitates the movement of the entire device by hand, and the brake pads on the universal casters 103 can stably fix the entire device in the required location. The water tank 102 is used to hold clean water for dust suppression. This clean water has undergone fine filtration (5-10μm precision filter) and softening treatment to prevent silt, calcium and magnesium ions in the water from clogging the atomizing nozzle 11. The design of the water level viewing window 1021 makes it easy to observe the remaining water in the water tank 102, so that the staff can add water to the water tank 102 through the water inlet. The stopcock 1022 is used to seal the water inlet to prevent dust and impurities from entering the water tank 102. It should be noted that the universal wheel 103 with brake and the brake pads on it are mature technologies in this field, and the fine filtration and softening treatment of clean water are conventional technologies in this field, which do not require creative labor, so they will not be described in detail in this article.
[0031] In this embodiment, the adjustable bracket 2 includes an electric rotary table 201, a U-shaped frame 202, two rotating shafts 203, a support base 204, a hinge base 205, a pin 206, an electric telescopic rod 207, a hinge base 208, and a pin 209. The electric rotary table 201 is fixedly installed on the top of the water tank 102, the U-shaped frame 202 is fixedly installed on the top of the electric rotary table 201, and the two rotating shafts 203 are respectively rotatably installed on both sides of the top of the U-shaped frame 202. The barrel 3 is located between the two rotating shafts 203, and the two rotating shafts 203 are connected to each other. The ends of the two parts that are close to each other are fixedly connected to the outer wall of the barrel 3. The support seat 204 is fixedly installed on the bottom right side of the U-shaped frame 202. The hinge seat 3 205 is fixedly installed on the top of the support seat 204. The pin 4 206 is rotatably installed on the hinge seat 3 205. The electric telescopic rod 207 is fixedly sleeved on the pin 4 206 and is set at an angle. The hinge seat 4 208 is fixedly installed on the bottom outer wall of the barrel 3. The pin 5 209 is rotatably installed on the hinge seat 4 208. The output shaft end of the electric telescopic rod 207 is fixedly sleeved on the pin 5 209. On the 9th, the electric rotary table 201 can drive the U-shaped frame 202, the cannon barrel 3, the disc seat 4, and multiple nozzles 9 to rotate horizontally, thereby adjusting the water mist spray direction. Utilizing the telescopic characteristic of the electric telescopic rod 207, in conjunction with the synergistic action of the hinge seat 205, the rotating shaft 203, the pin 206, the hinge seat 208, and the pin 209, the pitch angle of the cannon barrel 3 can be adjusted, thus adjusting the water mist spray angle. Combined with the tilt angle adjustment (retracting or opening) of the nozzles 9 themselves, the sprayed water mist can accurately cover the dust-generating points, adapting to... Construction sites often exhibit complex dust distribution characteristics (such as concentrated dust points and widespread dust). It should be noted that the electric rotary table 201 can be a commercially available KYCT110DXZ100H model electric rotary table or other custom-made electric rotary tables. The structure and working principle of the electric rotary table 201 are mature technologies in this field, and relevant technical personnel can learn about them by referring to textbooks and instruction manuals. No creative effort is required, so they will not be described in detail in this article.
[0032] In this embodiment, the permanent magnet magnetization mechanism 10 includes an annular permanent magnet core 1001, a non-magnetic water-proof inner sleeve 1002, and a magnetic outer shell 1003. The non-magnetic water-proof inner sleeve 1002 is fixedly installed on the inner ring wall of the annular permanent magnet core 1001, and the magnetic outer shell 1003 is fixedly sleeved on the outer ring wall of the annular permanent magnet core 1001. The left end of the magnetic outer shell 1003 is detachably and fixedly connected to the right end of the nozzle 9, and the right end of the magnetic outer shell 1003 is detachably and fixedly connected to the water inlet end of the atomizing nozzle 11. The water inlets of both the nozzle 9 and the atomizing nozzle 11 are connected to the non-magnetic water-proof inner sleeve 1002. When the water flowing into the nozzle 9 passes through the non-magnetic water-proof inner sleeve 1002 of the permanent magnet magnetization mechanism 10, the annular permanent magnet core... Under the constant strong magnetic field generated by 1001, the microscopic physical properties of water undergo irreversible benign changes (no chemical change, the composition of water remains H2O). This significantly enhances the wetting and adhesion capabilities of the water droplets atomized from the atomizing nozzle 11 to dust. The magnetically conductive outer shell 1003 encloses the annular permanent magnet core 1001, forming a closed magnetic circuit. Magnetic field lines originate from the N pole of the annular permanent magnet core 1001, pass through the magnetically conductive outer shell 1003, and then through the inner wall of the non-magnetically conductive water-proof inner sleeve 1002, forming a directional magnetic field. This concentrates the magnetic field generated by the annular permanent magnet core 1001 within the hollow water flow channel, preventing magnetic field leakage. The non-magnetically conductive water-proof inner sleeve 1002 is designed to isolate the water from the annular permanent magnet core. Direct contact with the core 1001 does not affect the magnetic circuit of the magnetic field, protecting the annular permanent magnet core 1001 from water corrosion and ensuring the stability and durability of the magnetic field's path. It should be noted that the permanent magnet magnetization mechanism 10 in this solution is a passive structure, requiring no power supply. It only requires periodic disassembly and cleaning of internal scale by personnel. The annular permanent magnet core 1001 is made of neodymium iron boron magnets with a magnetic field strength of 8000Gs-12000Gs. The magnetically conductive outer shell 1003 can be made of 304 stainless steel with a wall thickness of 1.5mm-2mm. The inner wall of the magnetically conductive outer shell 1003 is coated with a high-permeability nickel-iron coating, which can guide the magnetic field lines to the center of the water flow channel, ensuring that the water flow fully contacts the magnetic field and improving magnetization. Efficiency: The non-magnetic waterproof inner sleeve 1002 is made of polytetrafluoroethylene material with a wall thickness of 0.5mm-0.8mm. The inner wall of the non-magnetic waterproof inner sleeve 1002 is ultra-smoothly polished, resulting in a low coefficient of friction, low water flow resistance, minimal scaling, and resistance to acids and alkalis. Water magnetized by the annular permanent magnet core 1001 will slowly recover its original properties after being left at room temperature for several hours. Since the core process of spray dust suppression (the process of water mist sprayed from the atomizing nozzle 11 coming into contact with dust and condensing) only takes a few seconds, the physical properties after magnetization can be fully utilized to achieve enhanced efficiency. Moreover, the annular permanent magnet core 1001, made of neodymium iron boron magnets with a magnetic field strength of 8000Gs-12000Gs, has a magnetic field life of more than 10 years and requires virtually no maintenance.
[0033] In this embodiment, the two ends of the magnetic housing 1003 are detachably connected to the water inlet ends of the nozzle 9 and the atomizing nozzle 11, respectively, using a traditional threaded connection method: both ends of the magnetic housing 1003 adopt standardized internal thread interfaces, which are precisely matched and connected to the external threads on the outer wall of the right end of the nozzle 9 and the external threads on the water inlet end of the atomizing nozzle 11, respectively. A waterproof sealing ring is built in or Teflon tape is wrapped around the threaded interface to prevent water leakage, thereby enabling convenient assembly and disassembly of the permanent magnetization mechanism 10 as a whole. Since the detachable connection method of the two ends of the magnetic housing 1003 to the water inlet ends of the nozzle 9 and the atomizing nozzle 11 is a mature technology in the field and is not within the protection scope of this solution, and can be learned without creative effort, it will not be described in detail here.
[0034] In this embodiment, the advantages of using the permanent magnet magnetic field generated by the permanent magnet magnetization mechanism 10 to magnetize and modify the water flow are: (1) It can break down large molecular clusters and form small molecular clusters of water. Since the water molecules in ordinary water do not exist independently, but are linked together by hydrogen bonds to form large molecular clusters (particle size > 100 nm) composed of dozens of water molecules, the water permeability and wettability are poor when the molecular clusters are large, and the droplets are easy to bounce off when they come into contact with dust. When the water flow passes through the permanent magnet magnetic field of 8000Gs-12000Gs at a certain speed, the Lorentz force of the magnetic field will break some of the hydrogen bonds and break the large molecular clusters into small molecular clusters of water composed of 5-8 water molecules (particle size < 50 nm). The dispersion and fluidity of the water molecules are significantly improved, and they can spread quickly on the surface of the dust instead of forming water droplets that roll off; (2) It can reduce the surface tension of water and improve the wetting effect. Since the surface tension of water is the core factor that hinders the wetting of dust by droplets (the surface tension of ordinary water is about 72 mN / m), especially hydrophobic dust (e.g., building dust). The surface tension of the mineral powder and cement powder raised at the construction site is too high, which will cause the droplets to be unable to adhere. The magnetic small molecule cluster water weakens the intermolecular forces and the surface tension can be effectively reduced (for example, reduced to 54mN / m-65mN / m), which is close to the effect of adding a suitable proportion of low concentration wetting agent to clean water. When the droplets come into contact with the dust, they can quickly spread to form a water film, wrap the dust particles and achieve agglomeration and sedimentation. Therefore, there is no need to add additional chemical agents, which is suitable for scenarios where the use of agents is limited; (3) It can optimize the atomization characteristics of clean water and reduce the clogging of the atomizing nozzle 11. Because the dissolved capacity and anti-scaling properties of the magnetized water will be slightly improved, on the one hand, it can reduce the crystallization and deposition of calcium and magnesium ions in the nozzle channel and outlet, reducing the probability of clogging of the atomizing nozzle 11. On the other hand, the small molecule cluster water has better fluidity and can form a more uniform vortex in the vortex cavity (the vortex cavity is a conventional technical means in this field) in the atomizing nozzle 11, which helps to improve the atomization effect and make the droplet size more uniform.
[0035] In this embodiment, a water conveying mechanism 23 is provided between the mobile vehicle body 1 and the disc base 4. The water conveying mechanism 23 is used to deliver clean water to multiple nozzles 9. The water conveying mechanism 23 includes a booster water pump 2301, a water suction pipe 2302, a first water delivery hose 2303, a ring-shaped water distribution pipe 2304, a first water pipe connector 2305, multiple second water pipe connectors 2306, and multiple second water delivery hoses 2307. The booster water pump 2301 is fixedly installed on the top of the water tank 102. One end of the water suction pipe 2302 is connected to the booster water pump 2301. The suction end of 301 is fixedly connected, the other end of the water pump 2302 extends into the water tank 102, one end of the water delivery hose 2303 is fixedly connected to the discharge end of the booster pump 2301, the annular water distribution pipe 2304 is fixedly installed on the left side wall of the disc seat 4, the water pipe connector 2305 is fixedly connected to the bottom left side of the annular water distribution pipe 2304, the water pipe connector 2305 is connected to the inside of the annular water distribution pipe 2304, and the other end of the water delivery hose 2303 is fixed to the water pipe connector 2305. Multiple water pipe connectors 2306 are fixedly installed on the circumferential side of the annular water distribution pipe 2304 and are distributed in a ring at equal intervals. Each water pipe connector 2306 is connected to the interior of the annular water distribution pipe 2304. One end of each of multiple water delivery hoses 2307 is fixedly connected to its corresponding water pipe connector 2306, and the other end of each water delivery hose 2307 is fixedly connected to the left end of its corresponding spray pipe 9. When the booster pump 2301 is powered on, it can pump clean water from the water tank 102. The clean water sequentially passes through water delivery hose 2303, water pipe connector 2305, annular water distribution pipe 2304, water pipe connector 2306, and water delivery hose 2307 before entering the spray pipe 9. The clean water in the spray pipe 9 then passes through the permanent magnetization mechanism 10 and finally exits as a mist from the atomizing nozzle 11. It should be noted that the booster pump 2301 can be selected with a power of 750W-1100W, a rated working pressure of 0.8MPa-1.2MPa, and a rated flow rate of 0.8-1.2m³ / h. 3 / h-1.2m 3 / h water pump.
[0036] In this embodiment, it should be noted that a controller is installed and fixed on the outer wall of the water tank 102. The controller is equipped with multiple switches and buttons. The electric rotary table 201, the second electric telescopic rod 207, the first electric telescopic rod 12, the powerful fan 21, and the booster water pump 2301 are all electrically connected to the controller. The multiple switches and buttons are used to control the power supply and operation of the electric rotary table 201, the second electric telescopic rod 207, the first electric telescopic rod 12, the powerful fan 21, and the booster water pump 2301, respectively. The wiring connection method and control method are mature technologies in this field. Relevant personnel can learn about them by referring to textbooks and manuals without creative effort. Therefore, they will not be described in detail here.
[0037] In this embodiment, with the above-described structure, the construction engineering spray dust suppression device provided in this application, when in use, firstly, unscrew the stopcock 1022 and fill the water tank 102 with clean water that has undergone 5-10μm precision filtration and softening treatment from the water inlet. Then, screw the stopcock 1022 back into the water inlet. Next, push the device to the location on the construction site where dust suppression is required, lock the brake pads on the universal caster 103 with brakes to stabilize and fix the device as a whole, preventing it from shifting during operation and providing a stable foundation for subsequent dust suppression operations. Then, connect the power supply and start the electric rotary table 201 to control the U-shaped frame 202, the cannon 3, the disc base 4, and multiple spray nozzles. The horizontal rotation of pipe 9 adjusts the direction of water mist spray. By controlling the extension or retraction of the electric telescopic rod 207, the cannon barrel 3 can be driven to rotate around the pivot 203 on both sides, thereby adjusting the elevation angle of the cannon barrel 3 and thus the height angle of the water mist spray. By controlling the extension or retraction of the electric telescopic rod 12, the disc 13 is driven to move linearly along the guide rod 19. When the disc 13 moves, it drives multiple connecting rods 16 on the periphery to move in tandem. Through the coordinated cooperation of the corresponding hinge seat 17, pin 6, connecting seat 7, pin 15, and pin 18, the connecting rods 16 can synchronously drive multiple nozzles 9 to rotate, realizing the folding or opening of multiple atomizing nozzles 11 (similar to petal-like movement). According to the dust suppression requirements, after adjusting the water mist spray direction, water mist spray height and angle, and the opening and closing angles of multiple atomizing nozzles 11, the powerful fan 21 and the booster water pump 2301 are turned on and run simultaneously. The booster water pump 2301 draws clean water from the water tank 102 through the water pipe 2302, and delivers it to the annular water distribution pipe 2304 through the first water delivery hose 2303. The clean water entering the annular water distribution pipe 2304 is evenly distributed and delivered to the corresponding spray pipes 9 through multiple second water delivery hoses 2307. When the clean water enters the spray pipe... After 9, the water flows through the permanent magnetization mechanism 10. Under the action of the constant strong magnetic field generated by the annular permanent magnet core 1001, the water is magnetized and modified, so that the large molecular clusters in the water are broken down into small molecular clusters, the surface tension is reduced, and the ability of the droplets to wet and adhere to dust is improved. At the same time, the atomization characteristics are optimized and the probability of clogging of the atomizing nozzle 11 is reduced. After being magnetized and modified, the water is finally sprayed out from the atomizing nozzle 11, so that the water is atomized into fine and uniform water mist, which is sprayed towards the dusty area of the construction site to carry out water mist dust removal. During the dust suppression process, the airflow generated by the powerful fan 21 enters the cannon barrel 3 and is evenly dispersed and discharged through multiple trumpet-shaped air outlets 22 on the disc seat 4. The discharged airflow can synchronously propel the water mist sprayed by multiple atomizing nozzles 11, so that the water mist can spread rapidly and expand the dust suppression range.
[0038] During spray dust suppression, by adjusting the opening angle of multiple atomizing nozzles 11, the atomization spray angle becomes larger and the water mist coverage area becomes wider. This is suitable for large-area coarse dust suppression scenarios such as construction enclosures and open areas, and can achieve full-area suppression of low-concentration dust, reducing water waste. By adjusting the multiple atomizing nozzles 11 to gradually close, the atomization spray angle narrows, the water pressure becomes more concentrated, the water mist range becomes longer, and the atomized particles become denser. This is suitable for precise fine dust suppression scenarios such as long-distance spraying and high-concentration dust points (such as slag unloading ports), and can accurately capture PM2.5 and PM10 fine particulate matter.
[0039] Second Embodiment Based on the spray dust suppression device for construction engineering provided in the first embodiment of this application, the second embodiment of this application proposes another spray dust suppression device for construction engineering. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.
[0040] The second embodiment of this application will be further described below with reference to the accompanying drawings and embodiments.
[0041] See Figures 10-13 In the dust suppression spray device for construction engineering: an air supply mechanism 24 is provided on the right side of the disc base 4. The air supply mechanism 24 is used to guide the airflow discharged from multiple air outlets 22 to the vicinity of multiple atomizing nozzles 11. The air supply mechanism 24 includes multiple air pipe connectors 2401, multiple air supply hoses 2402, multiple support frames 2403, multiple annular air distribution pipes 2404, multiple air outlet nozzles 2405, and multiple air pipe connectors 2406. The multiple air pipe connectors 2401 are all fixedly installed on the right side wall of the disc base 4. The multiple air pipe connectors 2401 are respectively connected to the corresponding air outlets 22. One end of the multiple air supply hoses 2402 is respectively fixedly connected to the corresponding air pipe connectors 2401. The multiple support frames 2403 are respectively fixedly sleeved on the corresponding spray pipes 9. Multiple annular air distribution pipes 2404 are fixedly installed on corresponding support frames 2403. Multiple air outlet nozzles 2405 are fixedly connected to the right side of the multiple annular air distribution pipes 2404 and are evenly distributed. Multiple air pipe connectors 2406 are fixedly installed on the left side of the corresponding annular air distribution pipes 2404. The other end of multiple air supply hoses 2402 are fixedly connected to the corresponding air pipe connectors 2406. The airflow discharged through the air outlet 22 can enter the annular air distribution pipe 2404 in sequence through the air pipe connector 2401, the air supply hose 2402, and the air pipe connector 2406. The airflow entering the annular air distribution pipe 2404 is sprayed out from the multiple air outlet nozzles 2405 on its right side, which can further enhance the diffusion effect of water mist and further improve the dust removal effect.
[0042] In this embodiment, two limiting rings 25 are fixedly installed on the outer wall of the same nozzle 9. One end of the air supply hose 2402 passes through the two limiting rings 25 in sequence. The design of the limiting rings 25 can limit and fix the air supply hose 2402, prevent the air supply hose 2402 from getting tangled or pulled when the nozzle 9 is adjusted, prevent the air supply hose 2402 from being damaged and leaking air, and ensure that the air supply mechanism 24 works normally.
[0043] In this embodiment, the air outlet 22 is funnel-shaped, and the inner diameter of the air outlet 22 decreases from left to right. The design of the air outlet 22 as a funnel-shaped structure with the inner diameter decreasing from left to right can increase the speed and pressure of the airflow output by the powerful fan 21, improve the airflow intensity, and further improve the water mist diffusion range. For example, when the dust concentration is high, the airflow can help the water mist penetrate quickly and improve the settling effect.
[0044] In this embodiment, with the above structure, when the spray dust suppression device for construction engineering provided by this application is used, during the spray dust suppression according to the operation steps in the first embodiment, the air supply mechanism 24 can further guide the airflow from the multiple air outlets 22 to the vicinity of each atomizing nozzle 11. This allows the airflow from the multiple horn-shaped air outlets 22 to be accelerated and pressurized, and then sequentially pass through the corresponding air supply hoses 2402 into the corresponding annular air distribution pipes 2404. The airflow entering the annular air distribution pipes 2404 is then evenly sprayed out from the multiple air outlet nozzles 2405 on its right side. The airflow evenly sprayed out from the multiple air outlet nozzles 2405 can further enhance the water mist diffusion effect and diffusion range, making the water mist more evenly dispersed and condense with dust and particulate matter in the air, further improving the spray dust suppression effect and range.
[0045] The above provides a detailed description of a spray dust suppression device for construction engineering provided in this application. Specific embodiments have been used to illustrate the principles and implementation methods of this application. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. A spray dust suppression device for construction engineering, characterized in that, The system includes a mobile vehicle body (1), with an adjustable bracket (2) on the top of the mobile vehicle body (1). A cannon barrel (3) is mounted on the adjustable bracket (2). Both sides of the cannon barrel (3) are open. A disc seat (4) is fixedly connected to the right side of the cannon barrel (3). Multiple equally spaced annular grooves (5) are provided on the circumferential side of the disc seat (4). Pins (6) are rotatably installed in each of the multiple grooves (5). Connecting seats (7) are fixedly fitted on each of the multiple pins (6). Inclined support plates (8) are fixedly installed on each of the multiple connecting seats (7). Nozzles (9) are fixedly installed on each of the multiple support plates (8). The right end of each of the cannons is provided with a permanent magnetization mechanism (10), and the right side of each of the multiple permanent magnetization mechanisms (10) is provided with an atomizing nozzle (11). The right side of the disc base (4) is provided with a drive assembly, which is used to simultaneously adjust the tilt angle of multiple nozzles (9). A powerful fan (21) is fixedly installed on the left side of the cannon (3). The disc base (4) is provided with multiple air outlets (22) that are evenly spaced and distributed in a ring. The multiple air outlets (22) are connected to the inside of the cannon (3). A water conveying mechanism (23) is provided between the mobile vehicle body (1) and the disc base (4). The water conveying mechanism (23) is used to deliver clean water to multiple nozzles (9).
2. The spray dust suppression device for construction engineering according to claim 1, characterized in that: The drive assembly includes an electric telescopic rod (12), a disc (13), multiple pins (15), multiple connecting rods (16), multiple hinge seats (17), and multiple pins (18). The electric telescopic rod (12) is fixedly installed at the center of the right side of the disc seat (4). The disc (13) is fixedly installed at the output shaft end of the electric telescopic rod (12). The circumferential side of the disc (13) is provided with multiple equally spaced annularly distributed grooves (14). The multiple pins (15) are connected to the drive assembly. 5) The connecting rods (16) are rotatably installed in the corresponding grooves (14), the right ends of the connecting rods (16) are fixedly sleeved on the corresponding pins (15), the hinge seats (17) are fixedly sleeved on the corresponding nozzles (9), the pins (18) are rotatably installed on the corresponding hinge seats (17), the left ends of the connecting rods (16) are fixedly sleeved on the corresponding pins (18), and the connecting rods (16) are all inclined.
3. The spray dust suppression device for construction engineering according to claim 2, characterized in that: Two guide rods (19) are fixedly installed on the right side of the disc base (4). The electric telescopic rod (12) is located between the two guide rods (19). The disc (13) is slidably sleeved on the two guide rods (19). Limiting blocks (20) are fixedly installed on the right ends of the two guide rods (19).
4. The spray dust suppression device for construction engineering according to claim 1, characterized in that: The mobile vehicle body (1) includes a cross plate (101), a water tank (102), four universal wheels with brakes (103), and a handrail (104). The water tank (102) is fixedly installed on the top of the cross plate (101). The four universal wheels with brakes (103) are respectively fixedly installed at the four bottom corners of the cross plate (101). The handrail (104) is fixedly installed on the left outer wall of the water tank (102). A water level viewing window (1021) is fixedly installed on the front side wall of the water tank (102). A water inlet is opened on the top of the water tank (102), and a stopcock (1022) is installed in the internal thread of the water inlet.
5. The spray dust suppression device for construction engineering according to claim 4, characterized in that: The adjustable bracket (2) includes an electric rotary table (201), a U-shaped frame (202), two rotating shafts (203), a support base (204), a hinge base three (205), a pin four (206), an electric telescopic rod two (207), a hinge base four (208), and a pin five (209). The electric rotary table (201) is fixedly installed on the top of the water tank (102), and the U-shaped frame (202) is fixedly installed on the top of the electric rotary table (201). The two rotating shafts (203) are respectively rotatably installed on the top two sides of the U-shaped frame (202). The barrel (3) is located between the two rotating shafts (203), and the two rotating shafts (203) are close to each other. All ends are fixedly connected to the outer wall of the barrel (3). The support seat (204) is fixedly installed on the bottom right side of the U-shaped frame (202). The hinge seat three (205) is fixedly installed on the top of the support seat (204). The pin four (206) is rotatably installed on the hinge seat three (205). The electric telescopic rod two (207) is fixedly sleeved on the pin four (206) and is inclined. The hinge seat four (208) is fixedly installed on the bottom outer wall of the barrel (3). The pin five (209) is rotatably installed on the hinge seat four (208). The output shaft end of the electric telescopic rod two (207) is fixedly sleeved on the pin five (209).
6. The spray dust suppression device for construction engineering according to claim 1, characterized in that: The permanent magnetization mechanism (10) includes an annular permanent magnet core (1001), a non-magnetic water-proof inner sleeve (1002), and a magnetic outer shell (1003). The non-magnetic water-proof inner sleeve (1002) is fixedly installed on the inner ring wall of the annular permanent magnet core (1001). The magnetic outer shell (1003) is fixedly sleeved on the outer ring wall of the annular permanent magnet core (1001). The left end of the magnetic outer shell (1003) is detachably fixedly connected to the right end of the nozzle (9). The right end of the magnetic outer shell (1003) is detachably fixedly connected to the water inlet end of the atomizing nozzle (11). The water inlet ends of the nozzle (9) and the atomizing nozzle (11) are both connected to the non-magnetic water-proof inner sleeve (1002).
7. The spray dust suppression device for construction engineering according to claim 4, characterized in that: The water conveying mechanism (23) includes a booster pump (2301), a pumping pipe (2302), a first water delivery hose (2303), an annular water distribution pipe (2304), a first water pipe connector (2305), multiple second water pipe connectors (2306), and multiple second water delivery hoses (2307). The booster pump (2301) is fixedly installed on the top of the water tank (102). One end of the pumping pipe (2302) is fixedly connected to the suction end of the booster pump (2301), and the other end of the pumping pipe (2302) extends into the water tank (102). One end of the first water delivery hose (2303) is fixedly connected to the discharge end of the booster pump (2301). The annular water distribution pipe (2304) is fixedly installed on the left side wall of the disc seat (4). The first head (2305) is fixedly connected to the bottom left side of the annular water distribution pipe (2304). The first water pipe connector (2305) is connected to the inside of the annular water distribution pipe (2304). The other end of the first water delivery hose (2303) is fixedly connected to the first water pipe connector (2305). Multiple second water pipe connectors (2306) are fixedly installed on the circumferential side of the annular water distribution pipe (2304) and are distributed in an evenly spaced ring. Multiple second water pipe connectors (2306) are connected to the inside of the annular water distribution pipe (2304). One end of multiple second water delivery hoses (2307) is fixedly connected to the corresponding second water pipe connector (2306). The other end of multiple second water delivery hoses (2307) is fixedly connected to the left end of the corresponding nozzle (9).
8. The spray dust suppression device for construction engineering according to claim 1, characterized in that: An air delivery mechanism (24) is provided on the right side of the disc base (4). The air delivery mechanism (24) is used to guide the airflow discharged from multiple air outlets (22) to the vicinity of multiple atomizing nozzles (11). The air delivery mechanism (24) includes multiple air pipe connectors (2401), multiple air delivery hoses (2402), multiple support frames (2403), multiple annular air distribution pipes (2404), multiple air outlet nozzles (2405), and multiple air pipe connectors (2406). The multiple air pipe connectors (2401) are all fixedly installed on the right side wall of the disc base (4). The multiple air pipe connectors (2401) are respectively connected to the corresponding air outlets (22). One end of each hose (2402) is fixedly connected to the corresponding air pipe connector (2401). Multiple support frames (2403) are fixedly sleeved on the corresponding nozzles (9). Multiple annular air distribution pipes (2404) are fixedly installed on the corresponding support frames (2403). Multiple air outlet nozzles (2405) are fixedly connected to the right side of the multiple annular air distribution pipes (2404) and are evenly distributed. Multiple air pipe connectors (2406) are fixedly installed on the left side of the corresponding annular air distribution pipes (2404). The other end of each air delivery hose (2402) is fixedly connected to the corresponding air pipe connector (2406).
9. The spray dust suppression device for construction engineering according to claim 8, characterized in that: Two limiting rings (25) are fixedly installed on the outer wall of the same nozzle (9), and one end of the gas delivery hose (2402) passes through the two limiting rings (25) in sequence.
10. The spray dust suppression device for construction engineering according to claim 8, characterized in that: The air outlet (22) is trumpet-shaped, and the inner diameter of the air outlet (22) decreases from left to right.