Dust falling device for building civil engineering

Abstract

The application relates to the field of civil engineering dust falling technology, and discloses a dust falling device for building civil engineering, which comprises supporting legs, the top ends of the supporting legs are fixedly connected with dust falling box bodies, the top ends of the dust falling box bodies are fixedly connected with cylinders in a vertical state, the inner top portions of the cylinders are fixedly connected with cross-shaped partition plates extending into the dust falling box bodies, the top ends of the cylinders are fixedly connected with multiple air inlet pipes, and the air inlet pipes are provided with first fans; the two ends of the dust falling box bodies are fixedly connected with dust removal pipes, the inner side walls of the dust removal pipes are fixedly connected with second fans; the bottom portions of the dust falling box bodies are fixedly connected with water tanks, and the water tanks are fixedly connected with water pumps. The application has the following advantages and effects: the air of a building site can be efficiently and stably dust falling treated, the content of dust in the air is effectively reduced, the air quality of the site is improved, and the influence of dust on the health of construction personnel and the surrounding environment is reduced.

Description

Technical Field

[0001] This invention relates to the field of dust suppression technology in civil engineering, and particularly to a dust suppression device for building and civil engineering. Background Technology

[0002] With the booming development of the construction and civil engineering industry, various construction projects are springing up like mushrooms after rain. However, in the construction process, key links such as earthwork excavation, material transportation, and mechanized operations are like hidden "dust generators," easily producing large amounts of dust, which poses many serious hazards to the surrounding environment, air quality, the health of construction workers, and construction safety.

[0003] Traditional dust suppression methods mainly include manual watering, covering with dust nets, and setting up simple fixed sprinkler systems. Among these, manual watering and simple fixed sprinkler systems consume a large amount of water resources and are prone to causing excessive or insufficient dust suppression in some areas. Covering with dust nets can only cover static stockpiles or exposed ground, and has limited dust suppression effect on dynamic work surfaces (such as vehicle traffic and machinery operation), and is easily blown away by strong winds or damaged by construction machinery. These methods are difficult to meet the efficient and stable dust suppression requirements in complex building and civil engineering scenarios (such as mountain construction, temporary work sites, and multiple dust-affected operations). Therefore, a dust suppression device for building and civil engineering is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a dust suppression device for building and civil engineering, which can efficiently and stably suppress dust in the air at construction sites, effectively reduce the dust content in the air, and improve the air quality at construction sites.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a dust suppression device for building and civil engineering, comprising a support leg, a dust suppression box fixedly connected to the top of the support leg, a cylinder fixedly connected vertically to the top of the dust suppression box, a cross-shaped partition extending into the interior of the dust suppression box fixedly connected to the inner top of the cylinder, multiple air inlet pipes fixedly connected to the top of the cylinder, and a first fan installed inside the air inlet pipes; dust removal pipes fixedly connected to both ends of the dust suppression box, and a second fan fixedly connected to the inner side wall of the dust removal pipes; a water tank fixedly connected to the bottom of the dust suppression box, a water pump fixedly connected inside the water tank, a water pipe extending to the outside of the water tank fixedly connected to the outlet end of the water pump, a circular pipe connected to the water pipe fixedly connected to the outer end of the dust removal pipe, the circular pipe fixedly connected to the outlet end of the water pipe, and multiple nozzles fixedly connected to the inner side wall of the circular pipe.

[0006] By adopting the above technical solution, when in use, the device is placed in a suitable location at the construction site, and the first fan, the second fan, and the water pump are started. The first fan draws dust-laden air from the outside into the air intake duct, and through the channel formed by the cross-shaped baffle and the cylinder, it enters the dust collection chamber. The cross-shaped baffle at the top of the cylinder forms a specific channel with the cylinder, which guides and initially disperses the dust-laden air, allowing it to enter the dust collection chamber below more evenly. The second fan draws the dust-laden air from inside the dust collection chamber into the dust removal duct. The water pump draws water from the water tank, which is then sprayed out from the nozzle through the water pipe and the cylinder pipe. When the dust-laden air is sprayed out from the dust removal duct, it comes into full contact with the water vapor sprayed from the nozzle. The dust particles are wrapped and moistened by the water vapor, increasing their weight and causing them to settle down, thus achieving the separation of air and dust and achieving the purpose of dust suppression. In summary, this device can achieve efficient and stable dust suppression treatment of the air at construction sites, effectively reducing the dust content in the air, improving the air quality at the construction site, and reducing the impact of dust on the health of construction workers and the surrounding environment.

[0007] A further feature of the present invention is that the nozzle is an atomizing nozzle, the number of nozzles is 4 to 8, the 4 to 8 nozzles are evenly distributed along the circumferential direction of the inner sidewall of the circular tube, and the nozzle orifice diameter is 1.2 mm.

[0008] By adopting the above technical solution, the atomizing nozzles can atomize water into tiny particles, increasing the surface area of ​​the water. Four to eight nozzles are evenly distributed along the circumference of the inner wall of the circular pipe, ensuring uniform distribution of water vapor at the outlet of the dust removal pipe. The nozzle diameter is 1.2mm, which can control the size of the atomized water droplets. The atomizing nozzles allow for more thorough mixing of water and dust-laden air. The evenly distributed nozzles ensure that the air at the outlet of the entire dust removal pipe can be effectively treated for dust suppression. The appropriate nozzle diameter ensures good atomization effect, further improving the dust suppression effect.

[0009] A further feature of the present invention is that the spraying direction of the plurality of nozzles is outward, and the spraying angle of the nozzles is 30°-60° with the central axis of the dust removal pipe.

[0010] By adopting the above technical solution, the tilted nozzle allows the sprayed water vapor to come into better contact with the dust-laden air sprayed from the dust removal pipe, further increasing the contact area and contact time between the water vapor and the dust-laden air, improving the dust removal efficiency, and allowing the dust to combine more fully with the water vapor and settle.

[0011] A further feature of the present invention is that the cross-shaped partition comprises four mutually perpendicular partitions, the cylindrical body coincides with the geometric center axis of the cross-shaped partition, the length of each of the four cross-shaped partitions is 1.1 to 1.2 times the length of the cylindrical body, and the thickness is 5-8 mm.

[0012] By adopting the above technical solution, this structure can guide and disperse the dust-laden air entering the dust settling chamber, making the dust-laden air more evenly distributed within the dust settling chamber, avoiding excessively fast or slow local airflow, which is conducive to thorough mixing with water vapor in the subsequent process, and improving the uniformity and effectiveness of dust settling.

[0013] A further feature of the present invention is that the water pump is model PD-300EA, the rated flow rate of the water pump is 120L / min, and the rated head is 7.5m.

[0014] By adopting the above technical solution, the water pump with the above parameters can provide sufficient power and flow for water delivery, ensuring that the water in the water tank can be delivered to the nozzle at a suitable flow and pressure, so that the nozzle can spray water vapor normally, meet the water requirements of the dust suppression device, and ensure stable dust suppression effect.

[0015] A further feature of the present invention is that the diameter of the circular tube is equal to the diameter of the dust removal pipe, and a sealing ring is provided at the connection between the circular tube and the dust removal pipe, the thickness of the sealing ring being 2-3 mm.

[0016] By adopting the above technical solution, it is ensured that the circular pipe and the dust removal pipe are tightly connected, preventing dust-laden air from leaking from the connection point, ensuring that all dust-laden air comes into contact with water, and avoiding the impact of air leakage on the surrounding environment of the dust removal device.

[0017] A further configuration of the present invention is as follows: the rotation center axes of the first fan and the second fan coincide with the center axes of the air inlet pipe and the dust removal pipe, respectively; the second fan is fixedly connected to the inner side wall of the dust removal pipe near one end of the dust collection box; the first fan and the second fan have 6-8 blades, and the blade inclination angle is 45°.

[0018] By adopting the above technical solution, with 6-8 blades and a blade tilt angle of 45°-60°, this design can provide suitable air volume and air pressure, enabling the fan to work stably and efficiently. The determination of the relative positions of the first and second fans with the air inlet duct and dust removal duct ensures that the fans can efficiently draw air into or blow it out of the duct; ensures smooth flow of dust-laden air, improves the air intake and exhaust capacity, and thus enhances the overall performance of the dust suppression device.

[0019] A further feature of the present invention is that the number of air inlet pipes is at least four, and the four air inlet pipes are evenly distributed along the circumference of the cylinder; By adopting the above technical solution, dusty air from the outside can be drawn in from multiple directions, increasing the amount of air drawn in, expanding the dust suppression range of the device, and enabling the device to process dusty air in the surrounding environment more quickly and effectively.

[0020] The beneficial effects of this invention are as follows: the synergistic effect of the first and second fans ensures rapid airflow within the device, increasing the contact opportunities between dust-laden air and water vapor. Simultaneously, multiple nozzles evenly distributed on the inner wall of the circular pipe can spray water vapor over a large area, allowing the dust-laden air to fully mix with the water vapor upon exiting the device. This effectively reduces the dust content in the air at construction sites, decreases inhalable particulate matter, improves dust settling efficiency, ensures dust suppression, significantly improves air quality at construction sites, reduces the risk of respiratory diseases and other health problems among construction workers due to long-term dust inhalation, and also reduces pollution to the surrounding environment, thus contributing to the protection of the ecological environment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram showing the positions of the cross-shaped partition and the dust removal pipe of the present invention; Figure 3 This is a cross-sectional schematic diagram of the dust removal pipe of the present invention; Figure 4 For the present invention Figure 3 Enlarged diagram of point A in the middle.

[0023] In the diagram, 1. Support leg; 2. Dust removal pipe; 3. Dust settling box; 4. Cylinder; 5. Cross-shaped partition; 6. ...; 7. First fan; 8. Circular pipe; 9. Water pipe; 10. Water tank; 11. Water pump; 12. Second fan; 13. Nozzle; 14. Battery. Detailed Implementation

[0024] The technical solution of the present invention will now be clearly and completely described in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] Reference Figures 1-4A dust suppression device for building and civil engineering includes four support legs 1, which are fixedly connected to the four corners of the bottom of a dust suppression box 3. The top of each support leg 1 is fixedly connected to the dust suppression box 3. A cylinder 4 is vertically fixedly connected to the top of the dust suppression box 3. A cross-shaped partition 5 extending into the interior of the dust suppression box 3 is fixedly connected to the top of the cylinder 4. Multiple air inlet pipes 6 are fixedly connected to the top of the cylinder 4, and a first fan 7 is installed inside the air inlet pipes 6. Dust collection pipes 2 are fixedly connected to both ends of the dust suppression box 3, and a second fan 12 is fixedly connected to the inner wall of the dust collection pipes 2. The bottom of the dust suppression box 3 is fixedly... A water tank 10 is connected, with a water inlet on the top of the water tank 10. A sealing cap is threaded into the water inlet. A water pump 11 is fixedly connected inside the water tank 10. A water pipe 9, made of PVC, is fixedly connected to the outlet of the water pump 11, extending to the outside of the water tank 10. The outer diameter of the water pipe 9 is 25mm, and the wall thickness is 2mm. A circular pipe 8, connected to the water pipe 9, is fixedly connected to the outer end of the dust removal pipe 2. Multiple nozzles 13 are fixedly connected to the inner wall of the circular pipe 8. A battery 14 is fixedly installed on the outer side of the support leg 1. The battery 14 is electrically connected to the first fan 7, the second fan 12, and the starting water pump 11. The battery 14 provides stable power support for the device, ensuring that the first fan 7, the second fan 12, and the water pump 11 can operate continuously and stably, unaffected by factors such as unstable external power supply or location at the construction site. During use, the device is placed in a suitable location at the construction site, and the first fan 7, the second fan 12, and the water pump 11 are started. The first fan draws dust-laden air from the outside into the air inlet duct 6, and through the channel formed by the cross-shaped baffle 5 and the cylinder 4, enters the dust collection chamber 3. The cross-shaped baffle 5 at the top of the cylinder 4 forms a specific channel with the cylinder 4, guiding and initially dispersing the drawn-in dust-laden air, making it more evenly dispersed. Entering the dust collection chamber 3 below, the second fan 12 draws the dust-laden air inside the dust collection chamber 3 into the dust removal pipe 2. The water pump 11 draws water from the water tank 10, which is then sprayed out through the water pipe 9 and the round pipe 8 from the nozzle 13. When the dust-laden air is sprayed out from the dust removal pipe 2, it comes into full contact with the water vapor sprayed from the nozzle 13. The dust particles are wrapped and moistened by the water vapor, increasing their weight and causing them to settle down, thus achieving the separation of air and dust and achieving the purpose of dust reduction. In summary, this device can achieve efficient and stable dust reduction treatment of the air at construction sites, effectively reducing the dust content in the air, improving the air quality at construction sites, and reducing the impact of dust on the health of construction workers and the surrounding environment.

[0026] Nozzle 13 is an atomizing nozzle, and there are 4 to 8 nozzles 13. The 4 to 8 nozzles 13 are evenly distributed along the circumference of the inner wall of the circular pipe 8. The nozzle diameter of the nozzle 13 is 1.2 mm. The atomizing nozzle can atomize water into tiny particles, increasing the surface area of ​​the water. The even distribution of 4 to 8 nozzles 13 along the circumference of the inner wall of the circular pipe 8 ensures that the water vapor is evenly distributed at the outlet of the dust removal pipe 2. The nozzle diameter of 1.2 mm can control the size of the atomized water droplets. The atomizing nozzle makes the water and dust-laden air mix more thoroughly. The evenly distributed nozzles 13 ensure that the air at the outlet of the entire dust removal pipe 2 can be effectively treated for dust suppression. The appropriate nozzle diameter ensures good atomization effect and further improves the dust suppression effect.

[0027] The spray direction of the multiple nozzles 13 is outward, and the spray angle of the nozzles 13 is 30°-60° with the central axis of the dust removal pipe 2. The tilted nozzles 13 allow the sprayed water vapor to come into better contact with the dust-laden air sprayed from the dust removal pipe 2, further increasing the contact area and contact time between the water vapor and the dust-laden air, improving the dust reduction efficiency, and allowing the dust to combine more fully with the water vapor and settle.

[0028] The cross-shaped baffle 5 consists of four mutually perpendicular baffles. The geometric center axis of the cylinder 4 coincides with that of the cross-shaped baffle 5. The length of each of the four cross-shaped baffles 5 is 1.1 to 1.2 times the length of the cylinder 4, and the thickness is 5-8 mm. This structure can guide and disperse the dust-laden air entering the dust settling chamber 3, making the dust-laden air more evenly distributed in the dust settling chamber 3, avoiding excessively fast or slow local airflow, and facilitating thorough mixing with water vapor in the subsequent process, thereby improving the uniformity and effectiveness of dust settling.

[0029] The water pump 11 is model PD-300EA, with a rated flow rate of 120L / min and a rated head of 7.5m. The water pump 11 with the above parameters can provide sufficient power and flow for water delivery, ensuring that the water in the water tank 10 can be delivered to the nozzle 13 at a suitable flow rate and pressure, so that the nozzle 13 can spray water vapor normally, meet the water requirements of the dust suppression device, and ensure stable dust suppression effect.

[0030] The diameter of the circular tube 8 is equal to the diameter of the dust removal pipe 2. A sealing ring is provided at the connection between the circular tube 8 and the dust removal pipe 2. The thickness of the sealing ring is 2-3mm to ensure that the circular tube 8 and the dust removal pipe 2 are tightly connected, prevent dust-laden air from leaking from the connection, ensure that all dust-laden air comes into contact with water, and at the same time avoid the surrounding environment of the dust removal device from being affected by air leakage.

[0031] The rotational axes of the first fan 7 and the second fan 12 coincide with the central axes of the air inlet duct 6 and the dust removal duct 2, respectively. The second fan 12 is fixedly connected to the inner wall of the dust removal duct 2 near the dust collection box 3. The first fan 7 and the second fan 12 each have 6-8 blades with a blade inclination angle of 45°-60°. This design provides suitable airflow and air pressure, enabling the fans to work stably and efficiently. The relative positions of the first fan 7 and the second fan 12 with the air inlet duct 6 and the dust removal duct 2 ensure that the fans can efficiently draw air into or blow it out of the ducts; ensure smooth flow of dust-laden air; improve the air intake and exhaust capacity; and thus enhance the overall performance of the dust collection device.

[0032] The number of air inlet ducts 6 is at least four. The four air inlet ducts 6 are evenly distributed along the circumference of the cylinder 4, which can draw in dusty air from the outside from multiple directions, increasing the amount of air drawn in, expanding the dust removal range of the device, and enabling the device to treat the dusty air in the surrounding environment more quickly and effectively.

[0033] The present invention has the following effects: the synergistic effect of the first fan 7 and the second fan 12 ensures rapid airflow within the device, increasing the contact opportunities between dust-laden air and water vapor. At the same time, multiple nozzles 13 are evenly distributed on the inner wall of the circular tube, which can spray water vapor over a large area, allowing the dust-laden air to fully mix with the water vapor when it is discharged from the device. This effectively reduces the dust content in the air at construction sites, reduces inhalable particulate matter in the air, improves the dust settling efficiency, ensures the dust reduction effect, significantly improves the air quality at construction sites, reduces the risk of respiratory diseases and other health problems for construction workers due to long-term inhalation of dust, and also reduces pollution to the surrounding environment, which is conducive to protecting the ecological environment.

Claims

1. A dust suppression device for building and civil engineering, comprising support legs, characterized in that, A dust collection box is fixedly connected to the top of the support leg. A cylinder is fixedly connected to the top of the dust collection box in a vertical position. A cross-shaped partition extending into the interior of the dust collection box is fixedly connected to the top of the cylinder. Multiple air inlet pipes are fixedly connected to the top of the cylinder. A first fan is installed inside the air inlet pipe. Dust removal pipes are fixedly connected to both ends of the dust collection box. A second fan is fixedly connected to the inner wall of the dust removal pipe. A water tank is fixedly connected to the bottom of the dust collection box. A water pump is fixedly connected to the inside of the water tank. A water pipe extending to the outside of the water tank is fixedly connected to the outlet of the water pump. A circular pipe connected to the water pipe is fixedly connected to the outer end of the dust removal pipe. The circular pipe is fixedly connected to the outlet of the water pipe. Multiple nozzles are fixedly connected to the inner wall of the circular pipe.

2. The dust suppression device for building and civil engineering according to claim 1, characterized in that: The nozzle is an atomizing nozzle, and the number of nozzles is 4 to 8. The 4 to 8 nozzles are evenly distributed along the circumferential direction of the inner sidewall of the circular tube, and the nozzle orifice diameter is 1.2 mm.

3. A dust suppression device for building and civil engineering according to claim 2, characterized in that: The spray direction of the multiple nozzles is outward, and the spray angle of the nozzles is 30°-60° with the central axis of the dust removal pipe.

4. A dust suppression device for building and civil engineering according to claim 1, characterized in that: The cross-shaped partition includes four mutually perpendicular partitions. The geometric center axis of the cylinder coincides with that of the cross-shaped partition. The length of each of the four cross-shaped partitions is 1.1 to 1.2 times the length of the cylinder, and the thickness is 5-8 mm.

5. A dust suppression device for building and civil engineering according to claim 1, characterized in that: The water pump is model PD-300EA, with a rated flow rate of 120L / min and a rated head of 7.5m.

6. A dust suppression device for building and civil engineering according to claim 1, characterized in that: The diameter of the circular tube is equal to the diameter of the dust removal pipe, and a sealing ring is provided at the connection between the circular tube and the dust removal pipe. The thickness of the sealing ring is 2-3mm.

7. A dust suppression device for building and civil engineering according to claim 1, characterized in that: The rotation center axes of the first fan and the second fan coincide with the center axes of the air inlet duct and the dust removal duct, respectively. The second fan is fixedly connected to the inner side wall of the dust removal duct near the dust collection box. The first fan and the second fan have 6-8 blades, and the blade inclination angle is 45°-60°.

8. A dust suppression device for building and civil engineering according to claim 1, characterized in that: The number of air inlet pipes is at least four, and the four air inlet pipes are evenly distributed along the circumference of the cylinder.

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