A dust removal device for municipal road construction

Abstract

The present invention provides a dust removal device for municipal road construction, comprising: a base, a moving device fixed to the bottom of the base; a support frame fixed to the base; a fog cannon connected to the support frame and rotatably connected to the support frame; a liquid supply assembly fixed to the base and interconnected with the fog cannon; a first motor located on the rotating shaft between the fog cannon and the support frame, whose output shaft is fixed to the fog cannon; a longitudinal displacement mechanism fixed to the support frame and driving the fog cannon to move toward the interior of the base; a docking seat fixed to the tail of the base for docking with the output end of the fog cannon; and a pressurized nozzle flexibly connected to one side of the docking seat. This technical solution can realize dual-position operation of the fog cannon in both the working position and the storage position. When the fog cannon is in the storage position, the reverse force when it is opened can provide assistance for the displacement of the base, thereby reducing the labor intensity of manual operation of the base.

Description

Technical Field

[0001] The present invention generally relates to the field of operation and transportation, and in particular to a dust removal device for municipal road construction. Background Art

[0002] During municipal road construction, dust pollution is an urgent issue that needs to be addressed. It not only pollutes the environment but also affects the health of construction workers. Dust removal devices play an important role in this area, and fog cannons are widely used due to their efficient dust removal and reduction effects.

[0003] Currently, common platforms for carrying fog cannons are primarily categorized as vehicle-mounted and portable. Vehicle-mounted platforms offer the advantages of high mobility and wide coverage, but they lack flexibility in some confined construction sites or areas requiring delicate work. Portable platforms, on the other hand, effectively address this shortcoming. They utilize a platform vehicle as a seat carrier, with the fog cannon mounted on the vehicle. Dust removal and other related operations can be achieved by simply pushing the vehicle manually, making them highly adaptable to these complex environments.

[0004] However, existing portable platform trucks have significant shortcomings in practical application. Because they need to carry heavy objects such as water tanks, the weight of these objects significantly increases the load on workers. Pushing the platform requires more effort, making it difficult to move the platform, which significantly reduces its efficiency. This not only increases workers' labor intensity but also affects the progress and efficiency of municipal road construction.

[0005] In summary, the existing portable fog cannon carrying platform has low displacement efficiency due to the heavy load in municipal road construction. There is an urgent need for a dust removal device for municipal road construction that can solve this problem. Summary of the Invention

[0006] In view of the problems existing in the above-mentioned prior art, the present invention provides a dust removal device for municipal road construction, comprising: a base, a moving device, fixed to the bottom of the base; a support frame, fixed on the base; a fog cannon, connected in the support frame and rotatably connected to the support frame; a liquid supply component, fixed in the base and interconnected with the fog cannon; a first motor, located on the rotating shaft of the fog cannon and the support frame, and its output shaft is fixed to the fog cannon; a longitudinal displacement mechanism, fixed in the support frame, and drives the fog cannon to displace toward the inside of the base; a docking seat, fixed at the tail end of the base, for docking with the output end of the fog cannon; a pressurized nozzle, flexibly connected to one side of the docking seat.

[0007] By having the above-mentioned technical features, the dual-position operation of the fog cannon working position and the storage position can be realized. When the fog cannon is in the storage position, the reverse force when it is opened can provide assistance for the displacement of the base, so as to reduce the labor intensity of manual operation of the base. Moreover, its reverse force not only helps the movement of the base, but also sprays mist backwards through the pressurized nozzle, performing dust reduction operations while moving, thereby improving the dust reduction effect.

[0008] In some embodiments, the longitudinal displacement mechanism includes a screw rod vertically disposed on one side of the support frame, with both ends rotatably connected to the support frame; a second motor located at one end of the screw rod and fixed to the support frame, with its output shaft coaxially fixedly connected to the screw rod; and a drive block slidably connected to the support frame, passed through the screw rod, and threadedly connected to the screw rod. Thus, the second motor drives the screw rod to rotate, and through the sliding movement of the drive block and the support frame, the fog cannon is displaced along the height direction of the support frame, thereby adjusting the height of the fog cannon and enabling the fog cannon to be switched between a working position and a storage position.

[0009] In some embodiments, an annular air bag is fixed to the output port of the fog cannon, and a plurality of air pipes are provided around the circumference of the fog cannon, one end of the air pipe being interconnected with the interior of the fog cannon, and the other end of the air pipe being interconnected with the interior of the air bag. Thus, when the fog cannon is in operation, some air will be transported into the air bag through the air pipe. After the air bag is filled, the increase in its volume reduces the cross-sectional area of ​​the output port of the fog cannon, thereby indirectly increasing the wind pressure and air flow rate, thereby affecting the dispersion range of the fog. When the fog cannon is completely stored in the base, the air bag will be inflated and fill the gap between the fog cannon port and the docking seat port, thereby reducing gas leakage between the output port of the fog cannon and the docking seat.

[0010] In some embodiments, a guide plate is fixed obliquely inside the fog cannon at the connection point of the air pipe, which is used to guide the flowing air into the end of the air pipe. Thus, the setting of the guide plate plays a guiding role in the air flow, ensuring efficient and sufficient filling of the air bag.

[0011] In some embodiments, the airbag includes an impermeable wall and a semipermeable wall interconnected with the impermeable wall, with the semipermeable wall facing away from the fog monitor port. This ensures complete filling of the airbag while also delaying gas leakage, ensuring the airbag remains inflated. Furthermore, the semipermeable wall ensures more uniform gas leakage, thus limiting and guiding the overall flow of mist through the fog monitor port.

[0012] In some embodiments, the liquid supply assembly includes a water tank fixed in a base, a water pump interconnected with the interior of the water tank, the output port of the water pump is connected to a first liquid supply pipe, the other end of the first liquid supply pipe is connected to the end of the fog cannon, and a first solenoid valve is provided on the first liquid supply pipe.

[0013] Therefore, through the work of the water pump, the liquid supply to the fog cannon has been realized, further achieving the effect of dust reduction.

[0014] In some embodiments, the output port of the water pump is connected to a second liquid supply pipe, the other end of which extends to a pressurized nozzle, on which a plurality of second atomizing nozzles are mounted. The end of the second liquid supply pipe is interconnected with each of the second atomizing nozzles, and a second solenoid valve is provided on the second liquid supply pipe. Thus, when the fog cannon is within the interior of the substrate, the fog cannon's own mist injection can be shut off via the first solenoid valve, primarily providing a strong airflow. A second atomizing nozzle is provided at the end of the pressurized nozzle to achieve a misting dust reduction effect, thereby preventing the fog cannon's own mist from splashing into the high-pressure nozzle, causing liquid backflow and unnecessary liquid waste.

[0015] In some embodiments, one end of the pressurized nozzle is rotatably connected to the base, and an active rotation mechanism is provided on one side of the pressurized nozzle. The active rotation mechanism includes an arc-shaped guide rail fixed to the base and provided with an arc-shaped rack; a third motor is fixed to one side of the pressurized nozzle; and a first gear is coaxially fixed to the output shaft of the third motor and meshes with the arc-shaped rack. Thus, the angle of the pressurized nozzle can be adjusted to achieve the change of different working positions of the dust removal device. When the pressurized nozzle is facing the ground, dust blowing or leaf sweeping operations can be achieved during the displacement of the base; when the pressurized nozzle is horizontal, the loss of oblique force is reduced, making the displacement of the base more labor-saving; if the pressurized nozzle is tilted upward, dust reduction can be achieved during the displacement of the base.

[0016] In some embodiments, the support frame is a U-shaped structure, thereby improving the support strength of the support frame itself and ensuring the stability of the fog cannon installation and the stability of the fog cannon operation.

[0017] It should be understood that the contents described in the Summary of the Invention section are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram showing the overall structure of a dust removal device for municipal road construction according to an embodiment of the present invention is shown;

[0019] Figure 2A schematic diagram showing the bottom structure of a dust removal device for municipal road construction according to an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram showing the connection structure of a fog cannon in a dust removal device for municipal road construction according to an embodiment of the present invention is shown;

[0021] Figure 4 A schematic diagram showing the internal structure of a base body in a dust removal device for municipal road construction according to an embodiment of the present invention is shown;

[0022] Figure 5 A cross-sectional view of the tail structure of a fog cannon in a dust removal device for municipal road construction according to an embodiment of the present invention is shown;

[0023] Figure 6 A schematic cross-sectional view of an air bag in a dust removal device for municipal road construction according to an embodiment of the present invention is shown;

[0024] Figure 7 A schematic structural diagram of a pressurized nozzle area in a dust removal device for municipal road construction according to an embodiment of the present invention is shown;

[0025] Figure 8 A schematic structural diagram of a pressurized nozzle area in a dust removal device for municipal road construction according to an embodiment of the present invention is shown.

[0026] Explanation of symbols

[0027] 1. Base; 11. Support frame; 12. Moving device; 121. Straight wheel; 122. Universal wheel; 13. Handle; 2. Mist cannon; 21. First motor; 3. Longitudinal displacement mechanism; 31. Drive block; 32. Screw; 33. Second motor; 34. Limiting slide; 41. Docking seat; 42. Pressurized nozzle; 421. Second atomizing nozzle; 5. Air bag; 51. Airtight bag wall; 52. Semi-permeable bag wall; 53. Air pipe; 54. Guide plate; 6. Active rotation mechanism; 61. Arc guide rail; 62. Arc rack; 63. First gear; 64. Third motor; 7. Liquid supply assembly; 71. Water tank; 72. Water pump; 73. First liquid supply pipe; 74. Second liquid supply pipe. DETAILED DESCRIPTION

[0028] Hereinafter, preferred embodiments (or implementations) of the present invention will be described in detail with reference to the accompanying drawings.

[0029] Reference below Figures 1-8 A dust removal device for municipal road construction according to an embodiment of the present invention will be described.

[0030] Figure 1 The overall structure diagram of a dust removal device for municipal road construction according to an embodiment of the present invention is shown. Figure 1 As shown, the dust removal device for municipal road construction provided in this embodiment includes a base 1, which is rectangular in structure and has an opening at the top. A support frame 11 is provided above the base 1 and is fixed to the base 1. The support frame 11 is a U-shaped frame with its opening facing the base 1 and its two ends fixed to opposite inner walls of the base 1. A fog cannon 2 is provided inside the support frame 11, and the direction of the port of the fog cannon 2 is adjusted by rotating the fog cannon 2. The support frame 11 is also provided with a longitudinal displacement mechanism 3 to drive the fog cannon 2 to achieve displacement of the fog cannon 2 along the longitudinal direction of the support frame 11.

[0031] Figure 2 The bottom structure diagram of a dust removal device for municipal road construction according to an embodiment of the present invention is shown. Figure 2 As shown, a moving device 12 is provided at the bottom of the base 1. The moving device 12 mainly adopts a layout structure of a group of straight wheels 121 and a group of universal wheels 122. A group of universal wheels 122 is fixed at the two end corners on the front side of the bottom of the base 1, and a group of straight wheels 121 is fixed at the two end corners on the rear side of the bottom of the base 1. While achieving stable support for the base 1, it also achieves rotational displacement of the base 1.

[0032] Furthermore, a U-shaped handle 13 is fixed to the front side of the base 1, which provides a gripping area for the operator and the base 1, improves the operational efficiency of pulling the base 1 to move, and also facilitates the adjustment of the rotation of the base 1 and further adjusts the direction of the port of the fog cannon 2, thereby adjusting the radiation range of the fog cannon 2.

[0033] Figure 3 The figure shows a schematic diagram of the connection structure of the fog cannon 2 in a dust removal device for municipal road construction according to an embodiment of the present invention. Figure 3 As shown, a first motor 21 is provided on the peripheral side of the fog cannon 2, and the extension line of the center line of the first motor 21 intersects and is perpendicular to the center line of the fog cannon 2, so that the output shaft of the first motor 21 and the shell of the fog cannon 2 are fixed to each other.

[0034] The above-mentioned longitudinal displacement mechanism 3 includes two driving blocks 31, which are symmetrically arranged on both sides of the fog cannon 2, one of which is fixed to the first motor 21, and the other side driving block 31 is rotatably connected to the fog cannon 2; a screw 32 is vertically provided on one side of the support frame 11, and the upper and lower ends of the screw 32 are rotatably connected to the support frame 11, and the screw 32 passes through one of the driving blocks 31 and is threadedly connected to the driving block 31; a second motor 33 is provided on the upper end of the screw 32, and the main body of the second motor 33 is fixedly connected to the support frame 11, and the output shaft of the second motor 33 passes through the support frame 11 and is coaxially fixed to the screw 32; a limiting slide bar 34 is vertically provided on the other side of the fog cannon 2, and the two ends of the limiting slide bar 34 are fixedly connected to the support frame 11, and the limiting slide bar 34 passes through the driving block 31 on the same side and is slidably connected to the driving block 31. The screw 32 is rotated by the forward or reverse rotation of the second motor 33, and the driving block 31 is displaced along the direction of the screw 32 under the limit, thereby driving the fog cannon 2 to move along the height direction of the support frame 11. Then, the forward or reverse rotation of the first motor 21 drives the fog cannon 2 to swing, thereby adjusting the direction of the port of the fog cannon 2.

[0035] Figure 4 The figure shows the internal structure of the base 1 in a dust removal device for municipal road construction according to an embodiment of the present invention. Figure 4 As shown, to reduce the labor intensity of personnel moving the base 1 and to effectively utilize the reaction force during the operation of the fog cannon 2, a reverse thrust platform is also installed within the base 1. The reverse thrust platform includes a docking seat 41. The docking seat 41 is a tubular structure with a larger diameter at one end and is fixed to the rear area of ​​the base 1. When the fog cannon 2 is horizontally moved into the base 1, the larger end of the docking seat 41 faces the output port of the fog cannon 2 and has a larger diameter than the output port of the fog cannon 2. The other end of the fog cannon 2 is flexibly connected to a pressurized nozzle 42 via a hose. The pressurized nozzle 42 is mounted in the rear area of ​​the base 1. When the fog cannon 2 is in operation, air enters the fog cannon 2 at high speed, flows out of the output port of the fog cannon 2, flows into the docking seat 41, and is sprayed out by the pressurized nozzle 42. The area of ​​the base 1 located at the air inlet of the fog cannon 2 and the area located rearward of the pressurized nozzle 42 are both open. During the operation of the fog cannon 2, its internal fan generates strong wind pressure. According to Newton's third law, the high-speed ejected airflow will produce a reverse thrust on the fog cannon 2 and the base 1, thereby providing assistance for the movement of the base 1. The staff can easily pull the displacement of the base 1 through the handle 13 and control the direction of the base 1, which greatly reduces the labor intensity of operating the displacement of the base 1.

[0036] Figure 5The figure shows a cross-sectional view of the tail structure of a fog cannon 2 in a dust removal device for municipal road construction according to an embodiment of the present invention. Figure 5 As shown, to increase the efficiency of air flow between the fog cannon 2 and the docking station 41, an annular airbag 5 is coaxially fixedly connected to the output port of the fog cannon 2. The airbag 5 is interconnected with multiple air tubes 53. The other ends of the air tubes 53 are located in an annular area on the outer wall of the fog cannon 2 and communicate with the interior of the fog cannon 2. Furthermore, an annular deflector 54 is obliquely installed on the inner wall of the fog cannon 2, located in the area where the air tubes 53 end. This guides the flowing air into the air tubes 53 and inflates the airbag 5. After the airbag 5 is filled with gas, its expanded area covers part of the space at the output port of the fog cannon 2, thereby reducing the cross-sectional area of ​​the airflow and significantly increasing the flow rate of the gas. This indirectly increases the radiation width of the fog and further enhances the dust reduction and dust removal efficiency of the fog cannon 2.

[0037] When the fog cannon 2 is displaced in the base 1, the inflated air bag 5 will fill the connecting gap between the output port of the fog cannon 2 and the docking seat 41, thereby ensuring the air diversion efficiency, so that the wind pressure generated by the fog cannon 2 is completely diverted by the docking seat 41 to the pressurized nozzle 42, and output to the external environment by the pressurized nozzle 42, thereby reducing the leakage of gas during the circulation process and realizing the rational use of the reverse thrust force generated by the wind pressure.

[0038] Figure 6 FIG2 shows a cross-sectional schematic diagram of an air bag 5 in a dust removal device for municipal road construction according to an embodiment of the present invention. Figure 6 As shown, the airbag 5 further comprises an impermeable wall 51 and a semipermeable wall 52 interconnected with the impermeable wall 51. The semipermeable wall 52 is located on the side of the impermeable wall 51 facing away from the outlet of the fog cannon 2. The impermeable wall 51 can be made of polyurethane-coated fabric. By coating a PU resin on a base fabric such as nylon or polyester, the fabric's pores are completely sealed, achieving high airtightness. The semipermeable wall 52 can be made of warp-knitted mesh fabric, using a special weaving process to create regular pores with a pore size of 0.2 to 1 mm. When the airbag 5 is inflated, the semipermeable wall 5 limits gas leakage, ensuring the inflation effect of the airbag 5. The structure of the semipermeable wall 52 also slows gas leakage and improves the uniformity of gas discharge. This forms an annular gas-encased limiting layer at the outlet of the fog cannon 2, thereby improving the uniformity of gas distribution.

[0039] Figure 7 FIG1 shows a schematic structural diagram of the pressure nozzle 42 area in a dust removal device for municipal road construction according to an embodiment of the present invention. Figure 7As shown, the pressurized nozzle 42 is a flat structure, and its air inlet end is flexibly connected to the end of the docking seat 41 through a hose, and a rotating end connected to the base 1 is provided at the air inlet end of the pressurized nozzle 42, and an active rotation mechanism 6 is provided at the end of the pressurized nozzle 42, wherein the active rotation mechanism 6 includes an arc guide rail 61 vertically located on one side of the pressurized nozzle 42, an arc rack 62 is provided in the arc, the arc rack 62 is engaged with a first gear 63, and a third motor 64 is provided on one side of the first gear 63, and the output shaft of the third motor 64 is coaxially fixed to the first gear 63, and the main body of the third motor 64 is fixed to one side of the pressurized nozzle 42, and the first gear 63 and the arc rack 62 are driven to engage with each other through the forward or reverse rotation of the third motor 64, thereby driving the pressurized nozzle 42 to deflect in the direction.

[0040] When the pressurized nozzle 42 is tilted toward the ground, after the fog cannon 2 is started, high-pressure air flows out through the pressurized nozzle 42, which can, on the one hand, assist in the displacement of the base 1, and on the other hand, can perform dust blowing operations at the end of the base 1 during the movement of the base 1, especially for areas where leaves have fallen, thereby greatly improving the dust blowing efficiency.

[0041] When the pressurizing nozzle 42 is in a horizontal state, the boosting force converted from the wind pressure acts completely on the base 1, which greatly reduces the labor consumption of the staff's displacement.

[0042] When the pressure nozzle 42 is tilted upward, a plurality of second atomizing nozzles 421 are provided on the pressure nozzle 42 , and in conjunction with the start-up of the fog cannon 2 , the spraying operation can be realized at the tail during the displacement of the base 1 .

[0043] Figure 8 FIG1 shows a schematic structural diagram of the pressure nozzle 42 area in a dust removal device for municipal road construction according to an embodiment of the present invention. Figure 8 As shown, the base 1 is provided with a liquid supply assembly 7 for supplying liquid to the fog monitor 2 and the pressurized nozzles 42. The liquid supply assembly 7 comprises a water tank 71 fixed within the base 1. A water pump 72 is provided on one side of the water tank 71. The input of the water pump 72 communicates with the interior of the water tank 71, and the output of the water pump 72 is connected to a tee. One passage of the tee is connected to a first liquid supply pipe 73. The end of the first liquid supply pipe 73 extends to the first atomizing nozzle at the rear of the fog monitor 2 and is interconnected with the first atomizing nozzle. A first solenoid valve is provided on the first liquid supply pipe 73. The other passage of the tee is connected to a second liquid supply pipe 74. The end of the second liquid supply pipe 74 extends to the pressurized nozzle 42 and is interconnected with each second atomizing nozzle 421. A second solenoid valve is provided on the second liquid supply pipe 74.

[0044] When the fog cannon 2 is operating stationary, the fog cannon 2 can be moved to the top of the base 1 by sliding the fog cannon 2 and the support frame 11, and the fog cannon 2 can be driven to rotate by the first motor 21 to adjust the direction of the port of the fog cannon 2. At this time, the second solenoid valve is closed, the first solenoid valve is opened, and the water pump 72 and the fog cannon 2 are started, so that the fog cannon 2 sprays fine mist.

[0045] To move the dust removal device, the fog cannon 2 can be moved horizontally into the interior of the base 1 by sliding the fog cannon 2 and the support frame 11, and then the direction of the pressurized nozzle 42 can be adjusted to suit different working conditions. To perform a spray operation, the first solenoid valve can be closed and the second solenoid valve can be opened, so that the fog cannon 2 only supplies wind energy and generates water mist at the port of the pressurized nozzle 42 to reduce liquid backflow into the flexible connection area between the butt pipe and the pressurized nozzle 42.

[0046] In this specification, the terms "connect," "install," and "fix" should be understood broadly. For example, "connect" can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0047] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A dust removal device for municipal road construction, characterized in that: include: substrate (1), A moving device (12) is fixed to the bottom of the base (1); A support frame (11) is fixed on the base (1); A fog cannon (2) is connected to the support frame (11) and is rotatably connected to the support frame (11); A liquid supply assembly (7) is fixed in the base (1) and is interconnected with the fog cannon (2); A first motor (21) is located on the rotating shaft of the fog cannon (2) and the support frame (11), and its output shaft is fixed to the fog cannon (2); A longitudinal displacement mechanism (3) is fixed in the support frame (11) and drives the fog cannon (2) to move toward the interior of the base (1); A docking seat (41) is fixed to the tail portion of the base body (1) and is used for docking with the output end of the fog cannon (2); A pressurizing nozzle (42) is flexibly connected to one side of the docking seat (41) via a hose; One end of the pressurizing nozzle (42) is rotatably connected to the base (1), and an active rotating mechanism (6) is provided at the end of the pressurizing nozzle (42). The active rotating mechanism (6) includes An arc-shaped guide rail (61) is fixed to the base (1) and has an arc-shaped rack (62) disposed therein; a third motor (64) fixed to one side of the pressurizing nozzle (42); A first gear (63) is coaxially fixed to the output shaft of the third motor (64) and meshes with the arc-shaped rack (62); When the fog cannon (2) is horizontally displaced into the base (1) and starts working, the high-speed ejected airflow generates a reverse thrust on the fog cannon (2) and the base (1), providing assistance for the movement of the base (1).

2. A dust removal device for municipal road construction according to claim 1, characterized in that: The longitudinal displacement mechanism (3) comprises A screw rod (32) is vertically arranged on one side of the support frame (11), with both ends being rotatably connected to the support frame (11); a second motor (33), which is located at one end of the screw (32) and is fixed to the support frame (11), and whose output shaft is coaxially fixed to the screw (32); The driving block (31) is slidably connected to the support frame (11), and is passed through the screw rod (32) and is threadedly connected to the screw rod (32).

3. A dust removal device for municipal road construction according to claim 1, characterized in that: An annular air bag (5) is fixed at the output port of the fog cannon (2), and a plurality of air pipes (53) are provided on the circumference of the fog cannon (2), one end of the air pipe (53) is communicated with the interior of the fog cannon (2), and the other end of the air pipe (53) is communicated with the interior of the air bag (5).

4. A dust removal device for municipal road construction according to claim 3, characterized in that: A guide plate (54) is fixed obliquely at the connection point of the air pipe (53) inside the mist cannon (2) for guiding the flowing air into the air pipe (53).

5. A dust removal device for municipal road construction according to claim 3, characterized in that: The air bag (5) comprises an airtight bag wall (51) and a semi-permeable bag wall (52) interconnected with the airtight bag wall (51), and the semi-permeable bag wall (52) faces away from the port of the fog cannon (2).

6. A dust removal device for municipal road construction according to claim 1, characterized in that: The liquid supply assembly (7) comprises a water tank (71) fixed in the base (1), a water pump (72) that is in communication with the interior of the water tank (71), The output port of the water pump (72) is connected to a first liquid supply pipe (73), and the other end of the first liquid supply pipe (73) is connected to the end of the fog cannon (2). The first liquid supply pipe (73) is provided with a first electromagnetic valve.

7. A dust removal device for municipal road construction according to claim 6, characterized in that: The output port of the water pump (72) is connected to a second liquid supply pipe (74), the other end of the second liquid supply pipe (74) extends to the end of the pressurized nozzle (42), a plurality of second atomizing nozzles (421) are mounted on the pressurized nozzle (42), the end of the second liquid supply pipe (74) is in communication with each second atomizing nozzle (421), and a second solenoid valve is provided on the second liquid supply pipe (74).

8. A dust removal device for municipal road construction according to claim 1, characterized in that: The support frame (11) is a U-shaped structure.

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