A dust reduction device and method for construction engineering

Abstract

The present invention relates to the technical field of dust reduction in construction engineering, and specifically relates to a dust reduction device and method for construction engineering, including tracks and a digital display control panel. There are two parallel tracks. A moving vehicle is movably arranged on each track. A suspension rope structure is arranged between the two moving vehicles. A spray head is arranged between the two moving vehicles. A rotation drive assembly for driving the spray head to rotate is arranged on the suspension rope structure; A water tank is respectively arranged on each moving vehicle. A spring water supply pipeline structure is arranged between the water tank and the spray head. When the rotation drive assembly drives the spray head to rotate, the spring water supply pipeline structure can elastically bend and deform along with the rotation of the spray head; Through the mutual cooperation and coordination among the tracks, moving vehicles, suspension rope structure, water tank, spray head, spring water supply pipeline structure and rotation drive assembly, etc., mobile large-area spray dust reduction under the condition of a small number of spray heads can be realized, and spray dust reduction within a fixed-point range can also be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of dust reduction in construction engineering, and particularly relates to a dust reduction device and method for construction engineering. Background Art

[0002] Construction engineering refers to the engineering entity formed by the construction of various housing buildings and their ancillary facilities and the installation of pipelines and equipment supporting them. Among them, "housing building" refers to a project with a roof, beams, columns, walls, foundation, and capable of forming an internal space to meet the needs of people's production, residence, study, and public activities. During the construction of construction engineering, due to mechanical operations, a large amount of dust is easily generated, polluting the air and easily affecting the physical health of construction workers. Construction workers generally use dust reduction devices to carry out dust reduction operations.

[0003] A dust reduction device for construction engineering with the application number 202120679574.1 includes a bottom plate, a first electric push rod, a support seat, an installation groove, a motor, a gear, a slewing bearing, a support plate, a water tank, a water inlet, a water pump, a water pipe, an atomizing disc, a second electric push rod, and a fixing seat; four first electric push rods are fixed on the bottom plate; the bottom surface of the support seat is rotationally connected to the telescopic ends of the four first electric push rods; the installation groove is arranged on the top surface of the support seat.

[0004] A rotary water spraying dust reduction device for construction engineering management with the application number 202122677014.5 includes a moving box body. Four corners at the bottom of the moving box body are respectively provided with traveling wheels. A control panel is arranged on the front surface of the moving box body. A worm gear is connected inside the moving box body through a bearing seat. A worm is arranged inside the moving box body and on the back of the worm gear. A positive and negative motor is arranged on the right side of the moving box body. The output end of the positive and negative motor penetrates the moving box body and is connected to the worm.

[0005] However, at present, the dust reduction methods in construction engineering include fixed-point rotary spraying dust reduction and spraying by a spraying vehicle. In the case of large-area spraying dust reduction, it is necessary to lay a plurality of spray heads distributed in an array for spraying dust reduction. The laying is inconvenient, and the later disassembly and maintenance are also inconvenient, and the cost is high. Summary of the Invention

[0006] The purpose of the present invention is to provide a dust reduction device and method for construction engineering to solve the above problems and overcome the defects of the prior art, as described in detail below.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] The present invention provides a dust suppression device for construction engineering, comprising a track and a digital display control panel, wherein the track is provided with two parallel tracks, a moving vehicle is movably provided on each track, a suspension rope structure is provided between the two moving vehicles, a spray head is provided between the two moving vehicles, and a rotation drive component for driving the spray head to rotate is provided on the suspension rope structure;

[0009] Each mobile vehicle is provided with a water tank, and a spring water supply pipeline structure is provided between the water tank and the spray head. When the rotary drive assembly drives the spray head to rotate, the spring water supply pipeline structure can bend and deform elastically with the rotation of the spray head.

[0010] A plurality of water adding components for adding water to the water tank are arranged on the track along its length direction.

[0011] Preferably, each of the tracks is composed of a number of evenly distributed rails connected in sequence, a hanging plate is fixedly connected to the upper sides of both ends of each rail, two adjacent hanging plates are connected to each other through a seat plate, and two adjacent lower sides of the rails are connected to each other with a connecting piece, and the cross-sectional shape of the rail is I-shaped.

[0012] Preferably, two parallel side plates are provided on the upper side of the mobile vehicle, and two or more moving wheels are rotatably provided on the sides of the two side plates close to each other, and the moving wheels are rollingly connected with the rail rods in cooperation with each other.

[0013] Preferably, the lifting rope structure includes a rope body, and both moving vehicles are provided with a rope threading hole for passing the rope body. One end of the rope body passes through the rope threading hole and is connected to a rope limiting sleeve by bolts, and an outer sleeve of the rope body located between the moving vehicle and the rope limiting sleeve is provided with a spring.

[0014] Preferably, the rotary drive assembly comprises a shell, rope connecting sleeves for connecting to the rope body are fixedly arranged on both sides of the upper part of the shell, a motor is fixedly arranged inside the shell, the output shaft end of the motor passes through the shell and is fixedly connected to a spray head, and the output end of the digital display control panel is electrically connected to the input end of the motor.

[0015] Preferably, two auxiliary pull ropes are fixedly connected to the upper end of the shell, and the two auxiliary pull ropes are both arranged to be inclined upward and are fixedly connected to the two moving vehicles respectively.

[0016] Preferably, the spring water supply pipeline structure includes a spring connecting pipe. One end of the spring connecting pipe is connected to the water tank through a second water supply pipe, and the other end of the spring connecting pipe is connected to the spray head through a first water supply pipe. An electromagnetic valve is provided on the first water supply pipe. A water pump is provided in the water tank. One end of a water suction pipe is connected to the water outlet of the water pump, and the other end of the water suction pipe is connected to the second water supply pipe. The output end of the digital display control panel is electrically connected to the input ends of the electromagnetic valve and the water pump respectively.

[0017] Preferably, the water adding component includes an electric telescopic rod. The electric telescopic rod is fixedly arranged above the track. The push rod head of the electric telescopic rod faces upward and is fixedly connected with a sleeve. A water adding pipe is fixedly arranged in the sleeve. The outer contour of the water adding pipe is L-shaped. One end of the water adding pipe is provided with a pipe joint, and the other end of the water adding pipe is provided with a water adding plug. A water guide pipe for cooperating and connecting with the water adding plug is fixedly arranged on the water adding plug through a pipe fixing seat. The lower end of the water guide pipe is connected to one side of the upper part of the water tank.

[0018] Preferably, a lifting frame for lifting the water tank is fixedly arranged on the mobile vehicle. A liquid level sensor for detecting the liquid level height inside the water tank is arranged at the top inside the water tank. The output end of the liquid level sensor is electrically connected to the input end of the digital display control panel.

[0019] A dust reduction method for construction engineering includes the following steps:

[0020] S1: When used for dust reduction indoors, the track is fixedly connected to the indoor top side through a lifting plate and a seat plate. When used for dust reduction outdoors, the track is fixedly connected to the vertical pole through a lifting plate and a seat plate. The two mobile vehicles and the spray head between them can move along the length direction of the track.

[0021] S2: The two mobile vehicles move synchronously, which can drive the spray head to move along the length direction of the track and spray, thereby realizing mobile large-area coverage spray dust reduction. When realizing spray dust reduction at a fixed point position, the two mobile vehicles move to that position, and the rotary drive component drives the spray head to rotate, realizing spray dust reduction with a circular surface profile coverage.

[0022] S3: Water is added to the water tank in a segmented manner. When the mobile vehicle drives the water tank to move to the position where the water adding component is located, the water adding component adds water liquid to the water tank. After the water liquid is added, the mobile vehicle drives the spray head to continue moving for spraying.

[0023] The beneficial effects are as follows:

[0024] 1. Through the mutual cooperation and coordination among the track, mobile vehicle, suspension rope structure, water tank, spray head, spring water supply pipeline structure, rotation drive assembly, etc., mobile large-area spray dust reduction can be achieved with a small number of spray heads, and spray dust reduction within a fixed-point range can also be achieved.

[0025] 2. Through the suspension rope structure, the position adaptation adjustment between the spray head and the mobile vehicle can be realized. Thus, during the process of mobile spray dust reduction, stable spraying can always be carried out through the spray head, reducing the failure rate. In addition, the distance between the two tracks can also be adjusted according to actual needs.

[0026] 3. The appropriate number of track rods can be spliced according to the range where spray dust reduction is needed, and the distance between the two tracks can be adjusted through the suspension rope structure, so that it can be adjusted according to the size of the area range where dust reduction is needed.

[0027] 4. Adjust according to the position of the rope body in the rope limit sleeve, and thus make an adaptive adjustment according to the distance between the two tracks. And the spring is in a compressed state, thereby realizing the elastic tightening of the rope body. In addition, during disassembly, the suspension rope structure is also convenient for winding and occupies less space.

[0028] 5. The motor can drive the spray head to rotate. After the motor drives the spray head to rotate forward by 180°, the motor then drives the spray head to rotate backward by 180°. The spring connecting pipe can undergo adaptive bending elastic deformation during the rotation of the spray head, thereby realizing that the spray falls downward in a circular shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 is the front view of the present invention;

[0031] Figure 2 is the present invention Figure 1 right view;

[0032] Figure 3 is the present invention Figure 1 isometric view;

[0033] Figure 4 is the present invention Figure 1 A - A sectional view;

[0034] Figure 5 is the present inventionFigure 4 Partial enlarged view at position B;

[0035] Figure 6 This is the present invention Figure 4 Partial enlarged view at position C;

[0036] Figure 7 This is the present invention Figure 1 Isometric view in another direction of the present invention;

[0037] Figure 8 This is the present invention Figure 7 Partial enlarged view at position D of the present invention.

[0038] Explanation of reference numerals in the drawings is as follows: 1, track; 101, rail rod; 102, connecting member; 103, lifting plate; 104, seat plate; 2, moving vehicle; 201, side plate; 202, moving wheel; 203, rope passing hole; 3, hanging rope structure; 301, rope body; 302, rope limiting sleeve; 303, spring; 4, water adding assembly; 401, electric telescopic rod; 402, sleeve; 403, water adding pipe; 404, pipe joint; 405, water adding plug; 5, water tank; 501, lifting frame; 502, liquid level sensor; 503, water guide pipe; 504, pipe fixing seat; 6, digital display control panel; 7, spray head; 8, spring water supply pipeline structure; 801, spring connecting pipe; 802, first water supply pipe; 803, second water supply pipe; 804, water extraction pipe; 805, water pump; 806, solenoid valve; 9, rotary drive assembly; 901, housing; 902, motor; 903, rope connecting sleeve; 10, auxiliary pulling rope. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts fall within the scope protected by the present invention.

[0040] Refer to Figures 1 - 8As shown, the present invention provides a dust suppression device for construction engineering, including a track 1 and a digital display control panel 6, the track 1 is provided with two parallel distributions, and a mobile vehicle 2 is movably provided on each track 1. In actual application, the two mobile vehicles 2 move synchronously on the track 1, a suspension rope structure 3 is provided between the two mobile vehicles 2, a spray head 7 is provided between the two mobile vehicles 2, and a rotating drive component 9 for driving the spray head 7 to rotate is provided on the suspension rope structure 3; through the above-mentioned specific structural design, the suspension rope structure 3 can play a role of adaptive deformation during the movement of the two mobile vehicles 2. Since it is impossible to make the two tracks 1 completely parallel during the actual installation of the track 1, a certain parallelism error will be formed, or the forward and backward movement of the two mobile vehicles 2 is prone to displacement error, the use of the suspension rope structure 3 can realize the adaptive adjustment of the position between the spray head 7 and the mobile vehicle 2, so that in the process of mobile spray dust suppression, stable spraying can always be performed through the spray head 7 to reduce the failure rate. In addition, the spacing between the two tracks 1 can also be adjusted according to actual needs.

[0041] A water tank 5 is provided on each mobile vehicle 2, and a spring water supply pipe structure 8 is provided between the water tank 5 and the spray head 7. When the rotary drive component 9 drives the spray head 7 to rotate, the spring water supply pipe structure 8 can elastically bend and deform along with the rotation of the spray head 7; a plurality of water adding components 4 for adding water to the water tank 5 are provided on the track 1 along its length direction.

[0042] See the instruction manual Figure 1 , 3 As shown in , 5 and 8, each track 1 is composed of a number of evenly distributed rails 101 connected in sequence, and each rail 101 is fixedly connected to a hanging plate 103 on both ends of the upper side, and two adjacent hanging plates 103 are connected to each other through a seat plate 104, and two adjacent rails 101 are connected to each other on the lower side with a connecting piece 102, and the cross-sectional shape of the rail 101 is an I-shaped. Through the above-mentioned specific structural design, the rails 101 can be spliced ​​in appropriate numbers according to the range of the spray dust reduction required, and the spacing between the two rails 1 can be adjusted by the hanging rope structure 3, so that it can be adjusted according to the size of the area range of the dust reduction required.

[0043] Two parallel side plates 201 are arranged on the upper side of the moving vehicle 2. Two or more moving wheels 202 are rotatably arranged on the sides of the two side plates 201 close to each other. The moving wheels 202 and the rail rods 101 are rollingly connected with each other.

[0044] See the instruction manual Figure 2 and 6As shown in the figure, the suspension rope structure 3 includes a rope body 301. Through holes 203 for passing the rope body 301 are formed through both of the two moving carts 2. One end of the rope body 301 passes through the through hole 203 and is bolted with a rope limiting sleeve 302. A spring 303 is sleeved on the outer side of the rope body 301 between the moving cart 2 and the rope limiting sleeve 302. In practical applications, the rope body 301 is made of steel wire rope material. It can be adjusted according to the position of the rope body 301 in the rope limiting sleeve 302, so as to be adaptively adjusted according to the distance between the two tracks 1. And the spring 303 is in a compressed state, thereby realizing the elastic tightening of the rope body 301. In addition, during disassembly, the suspension rope structure 3 is also convenient for winding and occupies less space.

[0045] The rotation drive assembly 9 includes a housing 901. On both sides of the upper part of the housing 901, rope connection sleeves 903 for connecting with the rope body 301 are fixedly arranged. A motor 902 is fixedly arranged inside the housing 901. The output shaft end of the motor 902 passes through the housing 901 and is fixedly connected with a spray head 7. The outer shape of the spray head 7 is in the shape of a long strip of the character "one". The output end of the digital display control panel 6 is electrically connected to the input end of the motor 902. Two auxiliary pull ropes 10 are fixedly connected to the upper end of the housing 901. The two auxiliary pull ropes 10 are both inclined upward and are respectively fixedly connected with the two moving carts 2. Through the above specific structural design, the motor 902 is a servo motor and can drive the spray head 7 to rotate. After the motor 902 drives the spray head 7 to rotate forward by 180°, the motor 902 then drives the spray head 7 to rotate backward by 180°, thereby realizing that the spray falls downward in a circular shape.

[0046] See the attached instruction Figure 2 and 3 As shown in the figure, the spring water supply pipeline structure 8 includes a spring connecting pipe 801. One end of the spring connecting pipe 801 is connected to the water tank 5 through a second water supply pipe 803, and the other end of the spring connecting pipe 801 is connected to the spray head 7 through a first water supply pipe 802. An electromagnetic valve 806 is arranged on the first water supply pipe 802. A water pump 805 is arranged in the water tank 5. One end of a water extraction pipe 804 is connected to the water outlet of the water pump 805, and the other end of the water extraction pipe 804 is connected to the second water supply pipe 803. The output end of the digital display control panel 6 is respectively electrically connected to the input ends of the electromagnetic valve 806 and the water pump 805. Through the above specific structural design, in order to cooperate with the driving rotation of the spray head 7 by the above rotation drive assembly 9, the spring connecting pipe 801 can perform adaptive bending elastic deformation during the rotation of the spray head 7 and continuously supply water to the spray head 7.

[0047] See the attached instruction Figure 3 、 7As shown in FIGS. 7 and 8, the water adding assembly 4 includes an electric telescopic rod 401 fixedly arranged on the upper side of the track 1. The push rod head end of the electric telescopic rod 401 faces upward and is fixedly connected with a sleeve 402. A water adding pipe 403 is fixedly arranged in the sleeve 402. The outer contour of the water adding pipe 403 is in an L shape. One end of the water adding pipe 403 is provided with a pipe joint 404, and the other end of the water adding pipe 403 is provided with a water adding plug 405. A water guiding pipe 503 for cooperating and connecting with the water adding plug 405 is fixedly arranged on the water adding plug 405 through a pipe fixing seat 504. The lower end of the water guiding pipe 503 is connected to one side of the upper part of the water tank 5. A lifting frame 501 for lifting the water tank 5 is fixedly arranged on the moving vehicle 2. A liquid level sensor 502 for detecting the liquid level height inside it is arranged at the top inside the water tank 5. The output end of the liquid level sensor 502 is electrically connected to the input end of the digital display control panel 6. In practical applications, the liquid level sensor 502 can detect the liquid level height inside the water tank 5. When it is detected that the water levels in both water tanks 5 are lower than a certain height position, after the moving vehicle 2 moves to the next water adding point position, the electric telescopic rod 401 drives the water adding pipe 403 to move downward, and the water adding plug 405 is inserted into the top inside of the water guiding pipe 503, so as to realize adding water liquid from the water guiding pipe 503 into the water tank 5. After the liquid level sensor 502 detects that the liquid level height in the water tank 5 reaches a certain value, the external water supply device stops adding water liquid into the water tank 5, and the electric telescopic rod 401 drives the water adding pipe 403 to move upward, and the water adding plug 405 is separated from the water guiding pipe 503. In addition, in practical applications, position sensors can also be arranged at the positions of each water adding assembly 4 to detect the position of the moving vehicle 2, so that when adding water, the alignment of the upper and lower positions of the water adding plug 405 and the water guiding pipe 503 can be realized.

[0048] The working principle of the present invention:

[0049] When used for dust suppression indoors, the track 1 is fixedly connected to the indoor top side through the lifting plate 103 and the seat plate 104. When used for dust suppression outdoors, the track 1 is fixedly connected to the vertical pole through the lifting plate 103 and the seat plate 104. The two moving vehicles 2 and the spray head 7 therebetween can move along the length direction of the track 1; the two moving vehicles 2 move synchronously, which can drive the spray head 7 to move along the length direction of the track 1 and spray, thereby realizing mobile large-area coverage spray dust suppression. When realizing spray dust suppression at a fixed point position, the two moving vehicles 2 move to that position, and the rotation driving assembly 9 drives the spray head 7 to rotate, realizing circular surface contour coverage spray dust suppression; water is added to the water tank 5 in a segmented manner. When the moving vehicle 2 drives the water tank 5 to move to the position where the water adding assembly 4 is located, the water adding assembly 4 adds water liquid into the water tank 5. After the water adding is completed, the moving vehicle 2 drives the spray head 7 to continue moving for spraying.

[0050] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims described above.

Claims

1. A dust suppression device for construction engineering, characterized in that: It comprises a track (1) and a digital display control panel (6), wherein the track (1) is provided with two parallel distributed tracks, a moving vehicle (2) is movably provided on each track (1), a suspension rope structure (3) is provided between the two moving vehicles (2), a spray head (7) is provided between the two moving vehicles (2), and a rotation drive assembly (9) for driving the spray head (7) to rotate is provided on the suspension rope structure (3); Each mobile vehicle (2) is provided with a water tank (5), and a spring water supply pipeline structure (8) is provided between the water tank (5) and the spray head (7). When the rotary drive assembly (9) drives the spray head (7) to rotate, the spring water supply pipeline structure (8) can be elastically bent and deformed along with the rotation of the spray head (7); A plurality of water adding components (4) for adding water to the water tank (5) are arranged on the track (1) along its length direction; The suspension rope structure (3) comprises a rope body (301), and rope holes (203) for passing the rope body (301) are formed on both of the two moving vehicles (2), one end of the rope body (301) passes through the rope hole (203) and is connected to a rope limiting sleeve (302) via a bolt, and a spring (303) is provided on the outer side of the rope body (301) between the moving vehicle (2) and the rope limiting sleeve (302); The rotary drive assembly (9) comprises a housing (901), rope connecting sleeves (903) for connecting to the rope body (301) are fixedly arranged on both sides of the upper part of the housing (901), a motor (902) is fixedly arranged inside the housing (901), an output shaft end of the motor (902) passes through the housing (901) and is fixedly connected to a spray head (7), and an output end of the digital display control panel (6) is electrically connected to an input end of the motor (902); Two auxiliary pull ropes (10) are fixedly connected to the upper end of the housing (901); the two auxiliary pull ropes (10) are arranged to be inclined upward and are respectively fixedly connected to the two moving vehicles (2).

2. A dust suppression device for construction engineering according to claim 1, characterized in that: Each track (1) is composed of a plurality of evenly distributed rail rods (101) connected in sequence, and each rail rod (101) is fixedly connected to a hanging plate (103) on both ends of the upper side, and two adjacent hanging plates (103) are connected to each other via a seat plate (104), and two adjacent rail rods (101) are connected to each other on the lower sides with a connecting piece (102), and the cross-section of the rail rod (101) is in an I-shaped shape.

3. A dust suppression device for construction engineering according to claim 2, characterized in that: The upper side of the moving vehicle (2) is provided with two parallel side plates (201), and two or more moving wheels (202) are rotatably provided on the sides of the two side plates (201) close to each other, and the moving wheels (202) are rollingly connected with the rail rod (101) in cooperation with each other.

4. A dust suppression device for construction engineering according to claim 1, characterized in that: The spring water supply pipeline structure (8) comprises a spring connecting pipe (801), one end of the spring connecting pipe (801) is connected to the water tank (5) via a second water supply pipe (803), the other end of the spring connecting pipe (801) is connected to the spray head (7) via a first water supply pipe (802), the first water supply pipe (802) is provided with a solenoid valve (806), a water pump (805) is provided in the water tank (5), the water outlet of the water pump (805) is connected to one end of a water pumping pipe (804), the other end of the water pumping pipe (804) is connected to the second water supply pipe (803), and the output end of the digital display control panel (6) is electrically connected to the input end of the solenoid valve (806) and the water pump (805), respectively.

5. The dust suppression device for construction engineering according to claim 1, characterized in that: The water adding assembly (4) comprises an electric telescopic rod (401), the electric telescopic rod (401) being fixedly arranged on the upper side of the track (1), the push rod head end of the electric telescopic rod (401) facing upward and being fixedly connected to a sleeve (402), a water adding pipe (403) being fixedly arranged inside the sleeve (402), the outer contour of the water adding pipe (403) being L-shaped, a pipe joint (404) being arranged at one end of the water adding pipe (403), a water adding plug (405) being arranged at the other end of the water adding pipe (403), a water guiding pipe (503) being used for cooperating and connecting with the water adding plug (405) being fixedly arranged on the water adding plug (405) via a pipe fixing seat (504), and the lower end of the water guiding pipe (503) being connected to one side of the upper part of the water tank (5).

6. A dust suppression device for construction engineering according to claim 1, characterized in that: A hoisting frame (501) for hoisting a water tank (5) is fixedly arranged on the mobile vehicle (2), a liquid level sensor (502) for detecting the height of the liquid level inside the water tank (5) is arranged on the top of the water tank (5), and an output end of the liquid level sensor (502) is electrically connected to an input end of a digital display control panel (6).

7. A dust reduction method for construction engineering, characterized in that: The dust suppression device for construction engineering according to any one of claims 1 to 6 comprises the following steps: S1: When used for dust reduction indoors, the track (1) is fixedly connected to the indoor top side via the hanging plate (103) and the seat plate (104); when used for dust reduction outdoors, the track (1) is fixedly connected to the vertical pole via the hanging plate (103) and the seat plate (104); the two moving vehicles (2) and the spray head (7) therebetween are capable of moving along the length direction of the track (1); S2: The two moving vehicles (2) move synchronously, and can drive the spray head (7) to move along the length direction of the track (1) and spray, thereby realizing mobile large-area coverage spray dust reduction. When realizing spray dust reduction at a fixed position, the two moving vehicles (2) stop moving, and the rotary drive assembly (9) drives the spray head (7) to rotate, so as to realize spray dust reduction covering a circular surface contour; S3: Water is added to the water tank (5) in a segmented manner. When the mobile vehicle (2) drives the water tank (5) to move to the location where the water adding component (4) is located, the water adding component (4) adds liquid water to the water tank (5). After the liquid water is added, the mobile vehicle (2) drives the spray head (7) to continue to move and spray.

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