Dust fall system and method thereof

Abstract

The invention relates to the field of building construction auxiliary equipment, in particular to a dust falling system and a method thereof.The dust falling system comprises a sliding device and a broken line track, the extending path of the broken line track corresponds to the moving path of an excavator bucket, and the sliding device comprises a supporting plate; the supporting plate is connected to the broken line track in a sliding mode in the length direction of the broken line track, and the supporting plate is provided with an atomizing nozzle used for spraying water mist. The construction method has the effect of reducing the dust raising phenomenon in the construction process.

Description

Technical Field

[0001] The present application relates to the technical field of construction auxiliary equipment, and in particular to a dust reduction system and method thereof. Background Art

[0002] During the construction process, weather or construction equipment usually generates a large amount of dust, which has a certain impact on the environment. Therefore, it is usually necessary to control the dust phenomenon during the construction process.

[0003] For example, during the loading process, the excavator places the earth in the bucket of the transport vehicle. A lot of dust will be generated during the excavator's digging and unloading process. The conventional dust reduction method is to place a fog cannon near the transport vehicle or excavator. The fog cannon atomizes the water source through the atomizing nozzle, thereby absorbing the dust in the air to achieve the effect of dust reduction.

[0004] However, during the actual construction process, the excavator's range of movement is much larger than the spray range of the fog cannon, so the effect of dust reduction by the fog cannon is not outstanding. Summary of the invention

[0005] In order to reduce dust during construction, the present application provides a dust reduction system and method thereof.

[0006] The dust reduction system and method provided in this application adopt the following technical solutions: A dust reduction system and method thereof include a sliding device and a zigzag track, wherein the extension path of the zigzag track corresponds to the moving path of an excavator bucket, the sliding device includes a support plate, the support plate is slidably connected to the zigzag track along the length direction of the zigzag track, and an atomizing nozzle for spraying water mist is arranged on the support plate.

[0007] By adopting the above technical solution, during the construction process, the support plate is controlled to move by the PLC program, and the atomizing nozzle sprays water mist during the movement of the support plate. Through the support plate, the atomizing nozzle can spray water mist at different positions, thereby increasing the coverage of the water mist. Moreover, since the broken line track corresponds to the moving path of the excavator bucket, the atomizing nozzle can be targeted to reduce dust at dust-prone locations, thereby further improving the dust reduction effect.

[0008] Optionally, the fold line track is composed of multiple linear segments and multiple transition segments, the transition segment is located between two adjacent linear segments, the linear segment extends along a straight line, the transition segment is in an arc shape, and both ends of the transition segment are detachably connected to the linear segment.

[0009] By adopting the above technical solution, the transition section and the linear section can be detachably connected, and different transition sections can be replaced during the construction process, thereby changing the angle and bending direction between two adjacent linear sections, so that the broken line track can adapt to complex construction environments.

[0010] Optionally, a fixing device is provided on one side of the folding track, and the fixing device includes a fixing rod and a rotating mechanism. The fixing rod is provided with multiple linear segments, and the rotating structure is provided with multiple transition segments. The fixing rod is detachably connected to the rotating mechanism, the linear segment is fixedly connected to the fixing rod, and the transition segment is detachably connected to the rotating mechanism. A support leg is provided on the side of the fixing rod close to the ground, and the support leg can be fixedly connected to the ground.

[0011] By adopting the above technical solution, during the construction process, the legs are fixedly connected to the ground to support the fixed rod, the linear section is installed on the fixed rod and the transition section is installed on the rotating structure, so as to support the zigzag track and facilitate the workers to fix the zigzag track.

[0012] Optionally, the rotating mechanism includes two rotating blocks rotatably connected to each other, and two adjacent fixing rods are respectively connected to the two rotating blocks.

[0013] By adopting the above technical solution, rotating the rotating block can drive the fixed rod to rotate, thereby changing the angle between the two fixed rods, and then changing the angle between the two linear segments, making it convenient for staff to adjust the position between two adjacent linear segments.

[0014] Optionally, the sliding device also includes a limit assembly, which includes two rotating parts, the rotating parts are rotatably connected to the support plate, and the two rotating parts are respectively located on both sides of the foldable track trajectory. Limiting grooves are opened on two side surfaces of the foldable track corresponding to the rotating parts, and the limiting grooves pass through the length direction of the foldable track. The rotating part is partially inserted into the limiting groove, and the rotating part can rotate during the movement of the support plate.

[0015] By adopting the above technical solution, the two rotating members are inserted into the limit grooves on both sides of the folding track, thereby preventing the support plate from being separated from the folding track, and realizing the sliding connection between the support plate and the folding track. At the same time, since the rotating members can rotate when the support plate moves, the friction between the support plate and the folding track is reduced, and the stability of the support plate during sliding is improved.

[0016] Optionally, the limiting components are arranged in two groups along a direction parallel to the folding track, and the rotating parts of the two groups of limiting components are both clamped in the limiting grooves.

[0017] By adopting the above technical solution, two sets of limiting components limit the support plate at the same time, thereby improving the stability of the connection between the support plate and the folding track.

[0018] Optionally, a rotating disk is provided between the two rotating members, the rotating disk is rotatably connected to the support plate, and the rotating axis of the rotating disk is perpendicular to the side surface of the support plate close to the folding track.

[0019] By adopting the above technical solution, during the movement of the support plate, when one set of limit assemblies corresponds to the transition section and the other set of limit assemblies is located on the linear section, the rotating disk can rotate automatically, thereby reducing the occurrence of jamming during the movement of the support plate.

[0020] Optionally, the rotating member is a spherical structure, and the rotating member can rotate arbitrarily.

[0021] By adopting the above technical solution, the folding track has two bends, one on the vertical plane and the other on the horizontal plane. The rotating member is set to be spherical, so that the rotating member can adapt to the bending of the folding track in multiple directions, reducing the jamming between the rotating member and the limit groove.

[0022] Optionally, the side surface of the limiting groove is arc-shaped, and the rotating member is tangent to the side surface of the limiting groove.

[0023] By adopting the above technical solution, the limiting groove can better cover the rotating part through the arc-shaped side surface, thereby improving the stability of the support plate during movement.

[0024] A dust reduction method includes: determining a moving trajectory of an excavator bucket; Splice the broken-line track according to the moving track of the excavator bucket; Install the slide device on the folding track; The support plate is controlled to move, and the atomizing nozzle is made to spray water mist at the same time.

[0025] By adopting the above technical solution, the broken line track is spliced ​​according to the moving path of the bucket, so that the support plate can follow the bucket to carry out targeted dust reduction. At the same time, because the support plate can drive the atomizing nozzle to move, the water mist sprayed by the atomizing nozzle can be expanded to cover a wider range and improve the dust reduction effect. Of course, according to the actual situation, water mist can be continuously sprayed at a specific position to reduce dust, thereby improving the dust reduction effect.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The movement of the support plate can drive the atomizing nozzle to move, so that the atomizing nozzle can spray water mist at different positions and expand the coverage area of ​​the water mist.

[0027] 2. The transition section and the linear section are detachably connected. By replacing different transition sections, the path of the broken-line track can be changed, so that the dust reduction system can be applied to complex construction environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a vertical adjustment state diagram of an embodiment of the present application.

[0030] Figure 3 It is a horizontal adjustment state diagram of an embodiment of the present application, which is mainly used to show the positional relationship between the transition section and the rotation mechanism.

[0031] Figure 4 It is a schematic diagram of the structure of the sliding device of an embodiment of the present application.

[0032] Figure numerals: 1. zigzag track; 11. linear segment; 12. transition segment; 2. atomizing nozzle; 3. sliding device; 31. support plate; 4. limiting assembly; 41. mounting seat; 42. rotating member; 43. rotating disk; 44. limiting groove; 5. driving assembly; 51. driving wheel; 52. driving member; 6. fixing device; 61. fixing rod; 7. rotating mechanism; 71. rotating block; 72. plug-in column; 73. fixing plate; 8. supporting leg; 81. fixing cylinder; 82. sliding rod. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with Figure XX.

[0034] An embodiment of the present application discloses a dust reduction system.

[0035] Reference Figure 1 A dust reduction system includes a sliding device 3 and a broken line track 1. The extension path of the broken line track 1 corresponds to the moving path of the excavator bucket. The sliding device 3 is slidably matched on the broken line track 1. An atomizing nozzle 2 is installed on the sliding device 3 for spraying water mist. The sliding device 3 drives the atomizing nozzle 2 to move, thereby expanding the range of water mist spraying and improving the dust reduction effect.

[0036] Reference Figure 1 and Figure 2 The zigzag track 1 includes a linear segment 11 and a transition segment 12. There are at least two linear segments 11, and three in this embodiment. A plurality of transition segments 12 are provided corresponding to the gaps between two adjacent linear segments 11, and two in this embodiment. Both ends of the transition segment 12 are respectively connected to the linear segments 11 to form a zigzag zigzag track 1. During the construction process, the sliding device 3 slides along the length direction of the zigzag track 1, thereby being able to change the position of the atomizing nozzle 2 in the vertical and horizontal directions.

[0037] Reference Figure 1 and Figure 2 In order to facilitate the fixing of the folding track 1, a fixing device 6 is provided on one side of the folding track 1 perpendicular to the ground. The fixing device 6 includes a plurality of fixing rods 61 and a plurality of rotating mechanisms 7. The plurality of fixing rods 61 are provided corresponding to the plurality of linear segments 11, and the linear segments 11 are fixedly connected to the fixing rods 61 by screws. The plurality of rotating mechanisms 7 are provided corresponding to the plurality of transition segments 12. The fixing rods 61 are provided with supporting legs 8, which are used to support the fixing rods 61 or the rotating mechanisms 7, thereby fixing the folding track 1.

[0038] Reference Figure 1 and Figure 2 The supporting leg 8 includes a sliding rod 82 and a fixed tube 81. The sliding rod 82 is a cylindrical rod-shaped structure, and the fixed tube 81 is a circular tube-shaped structure. The sliding rod 82 slides and fits in the fixed tube 81 along its own length direction. The end of the sliding rod 82 away from the fixed tube 81 is connected to the fixed rod 61 and can rotate arbitrarily. In this embodiment, the sliding rod 82 and the fixed rod 61 are connected with a spherical connector. The end of the fixed tube 81 away from the sliding rod 82 is provided with a conical tip to facilitate the insertion of the fixed tube 81 into the ground for fixation. A threaded hole connected to the inside is provided on the side wall of the fixed tube 81, and a locking screw is threadedly connected in the threaded hole. By rotating the locking screw, the locking screw can be abutted against the sliding rod 82, thereby limiting the sliding of the sliding rod 82 and improving the stability of the supporting leg 8 on the fixed rod 61 or the rotating mechanism 7.

[0039] Reference Figure 1 and Figure 2 The rotating mechanism 7 includes two rotating blocks 71, one side of which has two mounting plates arranged in parallel and at intervals, and the mounting plates are welded and fixed to the rotating block 71. A connecting plate is welded to the other rotating block 71, and the connecting plate is located between the two mounting plates and is rotatably connected to the mounting plates, thereby realizing the rotational connection between the two rotating blocks 71. The two adjacent fixed rods 61 are respectively detachably connected to the sides of the two rotating blocks 71 that are away from each other. Rotating the rotating block 71 can change the angle between the two fixed rods 61, thereby changing the angle between the trajectory lines in the length direction of the two linear segments 11. The transition section 12 is detachably connected to the mounting plate, and the axis of the transition section 12 is parallel to the rotation axis of the rotating block 71. During use, the transition section 12 matching the angle between the two linear segments 11 can be installed according to the angle between the two linear segments 11, so that the broken line track 1 can adapt to complex construction environments.

[0040] Reference Figure 1 and Figure 2, plug-in columns 72 are welded on the sides of the two rotating blocks 71 that are away from each other. The plug-in column 72 has a columnar structure, and the cross-section of the plug-in column 72 on a plane perpendicular to itself is square. A plug-in slot matching the plug-in column 72 is provided on the end face of the fixed rod 61, and one end of the plug-in column 72 is slidably inserted in the plug-in slot to achieve a detachable connection between the fixed rod 61 and the rotating block 71. A positioning screw is provided on the fixed rod 61 at a position corresponding to the plug-in column 72. The positioning screw passes through the plug-in column 72 and the fixed rod 61 in turn to limit the plug-in column 72, thereby preventing the fixed rod 61 from separating from the rotating block 71 during use of the dust reduction system, thereby improving the stability of the operation of the dust reduction system.

[0041] Reference Figure 2 and Figure 3 , the cross section of the fixed rod 61 on a plane perpendicular to its own length direction is also square, and the center line of the plug-in column 72 (here the center line of the plug-in column 72 refers to a line parallel to the length direction of the plug-in column 72 and passing through the midpoint of the cross section of the plug-in column 72 on its own plane) coincides with the center line of the fixed rod 61 (here the center line of the fixed rod 61 refers to a line parallel to the length direction of the fixed rod 61 and passing through the midpoint of the cross section of the fixed rod 61 on its own plane). There are two states of connection between the rotating block 71 and the fixed rod 61. For the convenience of description, the side where the folding track 1 fits the fixed rod 61 is defined as the first side, and the two sides of the folding track 1 perpendicular to the first side are defined as the second side. The two connection states between the rotating block 71 and the fixed rod 61 are: the state in which the rotation axis of the rotating block 71 is perpendicular to the first side and the state in which the rotation axis of the rotating block 71 is parallel to the first side. For the convenience of description, the state in which the rotation axis of the rotating block 71 is perpendicular to the first side is defined as the vertical adjustment state. The state in which the rotation axis of the rotating block 71 is parallel to the first side surface is defined as a horizontal adjustment state.

[0042] Reference Figure 2 A threaded hole is provided on the side of the mounting plate perpendicular to the rotation axis of the rotating block 71. In the vertical adjustment state, the transition section 12 fits the mounting plate. A through hole is provided at a position corresponding to the threaded hole on the transition section 12, and a fixing member is provided in the through hole. In this embodiment, the fixing member is a locking screw, which passes through the through hole and is threadedly connected in the threaded hole to fix the transition section 12.

[0043] Reference Figure 3, when in the horizontal adjustment state, the transition section 12 is located on the side of the mounting plate parallel to its own rotation axis. A fixing plate 73 is provided on the transition section 12, and the fixing plate 73 includes a connecting portion and a fixing portion. One side of the connecting portion is fixedly connected to the transition section 12 by screws, and the other side extends in a direction parallel to the rotation axis of the rotating block 71 in a direction away from the transition section 12. The fixing portion is arranged perpendicular to the connecting portion, and one side of the fixing portion is welded to the connecting portion to form an L-shaped structure. A through hole is provided on the fixing portion at a position corresponding to the threaded hole on the mounting plate, and a locking screw passes through the through hole and is threadedly connected in the threaded hole to fix the transition section 12. During the construction process, through the cooperation of multiple rotating mechanisms 7, the projection of the folding track 1 on the horizontal plane and the projection on the vertical plane can both be in a folding line state, so that the dust reduction system can further adapt to complex construction environments.

[0044] Reference Figure 2 and Figure 4 The sliding device 3 includes a support plate 31 and a stopper assembly 4. The support plate 31 is arranged on a side of the folding track 1 away from the fixing device 6 and can move along the length direction of the folding track 1. The atomizing nozzle 2 is installed on the support plate 31. The movement of the support plate 31 can drive the atomizing nozzle 2 to move. The stopper assembly 4 is installed on the support plate 31 to prevent the support plate 31 from moving in a direction perpendicular to the first side surface in a direction away from the fixing device 6.

[0045] Reference Figure 2 and Figure 4 The limiting assembly 4 includes a mounting seat 41 and a rotating member 42. The mounting seat 41 is provided in two pieces. The two mounting seats 41 are respectively provided on both sides of the support plate 31 in a direction parallel to the mounting plate, and the folding track 1 is located between the two mounting seats 41. The rotating member 42 is provided in two pieces corresponding to the mounting seat 41, and the rotating member 42 is a spherical structure. A rotating groove is provided on the side surfaces of the two mounting seats 41 close to each other, and the rotating member 42 is partially located in the rotating groove and can rotate arbitrarily. A limiting groove 44 is provided on the two second side surfaces of the folding track 1 corresponding to the rotating member 42, and the limiting groove 44 runs through the length direction of the folding track 1. The part of the rotating member 42 located outside the rotating groove is located in the limiting groove 44, so that the mounting seat 41 can be blocked from moving in a direction perpendicular to the folding track 1, thereby realizing the limiting of the support plate 31. In addition, during the movement of the support plate 31, the rotating member 42 rolls in the limiting groove 44, so that the resistance encountered by the support plate 31 during the movement process can be reduced, and the stability of the support plate 31 during the movement process can be improved.

[0046] Reference Figure 2 and Figure 4 In order to further improve the stability of the support plate 31 during movement, the limiting components 4 can be arranged in multiple groups at intervals along a direction parallel to the support plate 31. In this embodiment, two groups are arranged.

[0047] Reference Figure 2 and Figure 4 A rotating disk 43 is disposed between the two mounting seats 41. The rotating disk 43 is rotatably connected to the side of the support plate 31 close to the folding track 1, and the rotation axis of the rotating disk 43 is perpendicular to the support plate 31. The mounting seat 41 is welded to the rotating disk 43. When the support plate 31 passes through the transition section 12, the rotating disk 43 can automatically rotate, so that the support plate 31 passes through the transition section 12 more stably.

[0048] Reference Figure 2 and Figure 4 The cross section of the limiting groove 44 on a plane perpendicular to the length direction of the folding track 1 is arc-shaped, and the side surface of the rotating member 42 is tangent to the side surface of the limiting groove 44, thereby increasing the contact area between the rotating member 42 and the limiting groove 44 and improving the stability of the rotating member 42 during rotation.

[0049] Reference Figure 2 and Figure 4 The sliding device 3 also includes a driving assembly 5, which includes a driving wheel 51 and a driving member 52. The driving wheel 51 is rotatably connected to the support plate 31. The support plate 31 is provided with a through hole that penetrates along the thickness direction thereof. The side wall of the driving wheel 51 passes through the through hole and abuts against the side of the folding track 1. The driving member 52 is installed on the support plate 31 to drive the driving wheel 51 to rotate. In this embodiment, the driving member 52 is a servo motor, the housing of the servo motor is welded to the support plate 31, and the output shaft of the servo motor is coaxially welded with the driving wheel 51. The output shaft of the servo motor rotates to drive the driving wheel 51 to rotate, and the rotation of the driving wheel 51 drives the support plate 31 to move, thereby realizing the automatic movement of the support plate 31.

[0050] In the actual construction process, multiple sets of sliding devices 3 can be set according to the actual construction environment, and then the multiple sets of sliding devices 3 can be controlled by the PLC program to slide in coordination to improve the efficiency and effect of dust reduction.

[0051] The implementation principle of a dust reduction system and method according to an embodiment of the present application is as follows: During the construction process, according to the range of motion of the excavator, the fixed rod 61 and the rotating block 71 are spliced. Then the rotating block 71 is rotated to adjust the angle between two adjacent rotating blocks 71, that is, to adjust the path of the folding track 1. After the folding track 1 is set, the sliding device 3 can be installed on the folding track 1 from one end of the folding track 1. Then the servo motor is controlled to rotate through the PLC program, and the rotation of the servo motor drives the support plate 31 to move, thereby driving the atomizing nozzle 2 to spray water mist within a certain range to achieve the effect of dust reduction.

[0052] The present application also discloses a dust reduction method: A dust reduction method, comprising: S1: To determine the range of motion of the excavator, the moving path of the excavator bucket can be manually observed, and then wooden sticks or steel bars of different lengths can be inserted into the ground to mark the moving path of the bucket according to the height of the end of the wooden stick or steel bar away from the ground.

[0053] S2: Assemble the broken-line track 1, select a plurality of fixed rods 61 and a plurality of rotating mechanisms 7 according to the moving path of the bucket marked in S1, and then splice them.

[0054] The steps of assembling the folding track 1 include: inserting the plug-in column 72 into the plug-in slot, and then passing the positioning screw through the fixing rod 61 and the plug-in rod at one time to achieve the connection between the rotating block 71 and the fixing rod 61.

[0055] S3: Install the transition section 12 , select a suitable transition section 12 according to the bending direction between two adjacent fixing rods 61 and the angle between two adjacent fixing rods 61 , and then fix it on the mounting plate.

[0056] S4: Install the sliding device 3 and slide the sliding device 3 from one end of the folding track 1 to place the rotating member 42 into the limiting groove 44.

[0057] S5: Turn on the power, and control the support plate 31 to move through the PLC program, thereby driving the atomizing nozzle 2 to move, and at the same time, the atomizing nozzle 2 sprays water mist.

[0058] The implementation principle of a dust reduction method in an embodiment of the present application is as follows: before construction, the moving path of the excavator bucket can be observed first, and then the fixed rod 61 can be spliced ​​according to the moving path of the bucket, so that the length direction of the broken line track 1 corresponds to the moving path of the bucket. Then, the transition section 12 is installed according to the positional relationship between two adjacent fixed rods 61. After the transition section 12 is installed, the sliding device 3 can be controlled by the PLC control program to slide along the length direction of the broken line track 1. During the movement and sliding of the sliding device 3, the atomizing nozzle 2 on the support plate 31 sprays water mist to achieve dust reduction.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust suppression system, characterized in that: The invention comprises a sliding device (3) and a folded-line track (1), wherein the extension path of the folded-line track (1) corresponds to the moving path of the excavator bucket, the sliding device (3) comprises a support plate (31), the support plate (31) is slidably connected to the folded-line track (1) along the length direction of the folded-line track (1), and an atomizing nozzle for spraying water mist is arranged on the support plate (31).

2. A dust suppression system according to claim 1, characterized in that: The folded-line track (1) is composed of a plurality of linear segments (11) and a plurality of transition segments (12); the transition segment (12) is located between two adjacent linear segments (11); the linear segment (11) extends along a straight line; the transition segment (12) is in an arc shape; and both ends of the transition segment (12) are detachably connected to the linear segment (11).

3. A dust suppression system according to claim 2, characterized in that: A fixing device (6) is provided on one side of the folding track (1), the fixing device (6) comprising a fixing rod (61) and a rotating mechanism (7), the fixing rod (61) being provided with a plurality of corresponding linear segments (11), the rotating mechanism being provided with a plurality of corresponding transition segments (12), the fixing rod (61) being detachably connected to the rotating mechanism (7), the linear segment (11) being fixedly connected to the fixing rod (61), the transition segment (12) being detachably connected to the rotating mechanism (7), and a support leg (8) being provided on a side of the fixing rod (61) close to the ground, the support leg (8) being capable of being fixedly connected to the ground.

4. A dust suppression system according to claim 3, characterized in that: The rotating mechanism (7) comprises two rotating blocks (71) that are rotatably connected to each other, and the two adjacent fixing rods (61) are respectively connected to the two rotating blocks (71).

5. A dust suppression system according to any one of claims 1 to 4, characterized in that: The sliding device (3) further comprises a limit assembly (4), wherein the limit assembly (4) comprises two rotating members (42), wherein the rotating members (42) are rotatably connected to the support plate (31), and the two rotating members (42) are respectively located on two sides of a track line of the folding track (1), and limit grooves (44) are provided on two side surfaces of the folding track (1) corresponding to the rotating members (42), wherein the limit grooves (44) penetrate along the length direction of the folding track (1), and the rotating member (42) is partially inserted into the limit grooves (44), and the rotating member (42) can rotate during the movement of the support plate (31).

6. A dust suppression system according to claim 5, characterized in that: The limiting components (4) are arranged in two groups along a direction parallel to the folding track (1), and the rotating parts (42) of the two groups of limiting components (4) are both clamped in the limiting grooves (44).

7. A dust suppression system according to claim 6, characterized in that: A rotating disk (43) is provided between the two rotating members (42); the rotating disk (43) is rotatably connected to the support plate (31); and the rotating axis of the rotating disk (43) is perpendicular to the side surface of the support plate (31) close to the folded track (1).

8. A dust suppression system according to claim 5, characterized in that: The rotating member (42) is a spherical structure, and the rotating member (42) can rotate arbitrarily.

9. A dust suppression system according to claim 8, characterized in that: The side surface of the limiting groove (44) is in an arc shape, and the rotating member (42) is tangent to the side surface of the limiting groove (44).

10. A dust suppression method using the dust suppression system according to any one of claims 1 to 9, characterized in that: include: Determine the movement trajectory of the excavator bucket; splicing a broken line track (1) according to the moving trajectory of the excavator bucket; Installing the sliding device (3) on the folding track (1); The support plate (31) is controlled to move, and the atomizing nozzle is caused to spray water mist at the same time.

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