Environment-friendly dust removal equipment for building construction site

Abstract

The invention relates to the technical field of spray-washing separation equipment, in particular to environment-friendly dust removal equipment for a building construction site, which comprises a box body, a driving motor is fixedly connected to the outer wall of the box body, a belt pulley set is arranged at the output end of the driving motor, a water pump is fixedly connected to the inner wall of the box body, and a cutting device is arranged in the box body. A filtering device is arranged at the bottom of the cutting device, and a circulating device is arranged on one side of the filtering device. The effects of removing dust and protecting the health of operators are achieved through the cutting device, when the equipment cuts floor tiles, a water spraying shower head in the spraying mechanism can refine water flow into water mist, the water mist is fully combined with dust generated by cutting to form slurry, the dust is effectively prevented from being diffused into air, and the diversified machining requirements are met through the cutting device; the distance between the clamping plates is adjusted by twisting a screw rod on the positioning clamp, the distance between the shear knife and the fixing frame is changed by rotating the displacement ring in a matched mode, and the cutting and dust falling requirements of floor tiles of different specifications are met.

Description

An environmentally friendly dust removal device for construction sites Technical Field

[0001] This invention relates to the field of spray washing and separation equipment technology, specifically to a dust removal device for environmental protection at construction sites. Background Technology

[0002] In modern production, with the development of industry and the actual needs of production, the demand for dust removal equipment for environmental protection at construction sites is increasing and the requirements are becoming more stringent. Existing dust removal equipment has defects. For example, it cannot effectively spray and wash away dust generated during the batch processing of floor tiles, and it cannot recycle the wastewater after spraying. It often requires multiple devices to work together, which is time-consuming and labor-intensive.

[0003] Therefore, to address the aforementioned shortcomings, this invention provides an environmentally friendly dust removal device for construction sites. Through a cutting device, water mist and dust generated during cutting are fully combined to form a slurry, effectively preventing dust from spreading into the air. The dust-laden slurry is filtered by a filtration device, and after a secondary filtration by a circulation device, it is reused for spraying, forming a complete water circulation system. This meets the urgent needs of various industries for environmentally friendly dust removal equipment for construction sites. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is as follows: an environmentally friendly dust removal device for construction sites, comprising: a housing, a drive motor fixedly connected to the outer wall of the housing, a pulley assembly at the output end of the drive motor, a water pump fixedly connected to the inner wall of the housing, a cutting device inside the housing, a filter device at the bottom of the cutting device, and a circulation device on one side of the filter device; the cutting device includes a support plate, a fixing plate fixedly connected to the outer wall of the support plate, a limit frame rotatably connected to the inner wall of the fixing plate, a retaining plate slidably connected to the outer wall of the limit frame, a tray slidably connected to the outer wall of the retaining plate, a return spring fixedly connected to the inner wall of the tray, an upper ratchet fixedly connected to the outer wall of the retaining plate, a lower ratchet meshing with the outer wall of the upper ratchet, a support spring fixedly connected to the outer wall of the lower ratchet, a telescopic rod rotatably connected to the outer wall of the retaining plate, a positioning clamp rotatably connected to one end of the telescopic rod, and a spraying mechanism on one side of the positioning clamp.

[0005] Preferably, the spraying mechanism includes a spray cylinder, an outlet piston slidably connected to the inner wall of the spray cylinder, a retaining spring and a protective bellows fixedly connected to the outer wall of the outlet piston, a fixing frame fixedly connected to the outer wall of the spray cylinder, a water spray nozzle fixedly connected to the bottom outer wall of the spray cylinder, a connecting rod rotatably connected to the outer wall of the fixing frame, a shearing blade rotatably connected to the outer wall of the connecting rod, a displacement ring slidably connected to the outer wall of the connecting rod, and a rotating shaft threadedly connected to the outer wall of the displacement ring. When batch processing is required... When processing floor tiles, pull the lever on the fixed plate in the cutting device to pull the fixed plate out of the box. At this time, place the floor tile to be processed into the tray. The weight of the floor tile presses down on the tray, and the downward pressure of the tray compresses the return spring. The tray presses down on the retaining plate, and the retaining plate moves down. The upper ratchet connected to the retaining plate presses down on the lower ratchet, compressing the support spring. The downward movement of the retaining plate pulls the telescopic rod, causing the telescopic rod to retract. This causes the positioning clamp connected to the telescopic rod to retract along the guide rail on the outer wall of the tray towards the center, clamping the floor tile placed on the tray.

[0006] Preferably, the outer wall of the support plate is fixedly connected to the inner wall of the box, the outer wall of the tray is slidably connected to the inner wall of the limiting frame, the end of the return spring away from the outer wall of the tray is fixedly connected to the inner wall of the limiting frame, the end of the support spring away from the lower ratchet is fixedly connected to the outer wall of the fixing plate, and the inner wall of the positioning clamp is slidably connected to the outer wall of the tray. After clamping the floor tile, push the pull rod to push the floor tile into the box. The floor tile pushed into the box drives the drive motor to drive the shearing blade in the spraying mechanism to cut the floor tile through the pulley group and the rotating shaft. During cutting, the water pump pumps the water flow from the water tank at the bottom of the box into the spraying cylinder through the circulation device. The water flow entering the spraying cylinder pushes open the water outlet piston, compresses the retaining spring and the protective bellows, and the water flow entering the water sprayer is atomized into water mist by the water sprayer. The atomized water mist combines with the floor tile dust generated by cutting the floor tile to become mud, which flows into the filter device from the holes on the support plate.

[0007] Preferably, the outer wall of the retaining spring and the protective bellows away from the water outlet piston is fixedly connected to the inner wall of the spray cylinder. The outer walls of the fixing frame and the shearing blade are slidably connected to the inner wall of the rotating shaft. The outer wall of the rotating shaft is rotatably connected to the inner wall of the housing. The outer wall of the rotating shaft is connected to the output end of the drive motor through a pulley set. When the floor tile is cut and the remaining unprocessed area still needs to be processed, the floor tile is pulled out, the floor tile is held down, and a clockwise force is applied to make it rotate clockwise. This drives the positioning clamp, telescopic rod, and tray limit frame to rotate 90 degrees, so that the unprocessed area is aligned with the shearing blade. Continue to push the pull rod to perform subsequent processing on the floor tile.

[0008] Preferably, the filtration device includes a guide plate, a filter cake cylinder is fixedly connected to the outer wall of the guide plate, a feeding screw is rotatably connected to the inner wall of the filter cake cylinder, a water inlet pipe is provided at the bottom of the filter cake cylinder, a one-way piston is slidably connected to the inner wall of the water inlet pipe, a return spring and a protective bellows are fixedly connected to the inner wall of the one-way piston, and a water outlet pipe is connected to the water inlet pipe through a flange. After the mud slurry enters the filtration device, it is guided into the filter cake cylinder by the guide plate. The mud slurry inside the filter cake cylinder is conveyed outward by the feeding screw. During the conveying process, the mud slurry is squeezed by the blades of the feeding screw, causing the water in the mud slurry to pass through the holes of the filter cake cylinder and enter the settling tank area inside the box, further settling the water after filtering, separating fine dust. The dewatered mud slurry has a lower water content and is sent out of the box by the feeding screw. The water that has been further settled enters the settling tank area through the water inlet pipe, squeezes the one-way piston, compresses the return spring and the protective bellows, and enters the water outlet pipe through the flange.

[0009] Preferably, the outer wall of the guide plate is fixedly connected to the inner wall of the box, the outer wall of the filter cylinder is fixedly connected to the inner wall of the box, the outer wall of the feeding screw is fixedly connected to the output end of the drive motor, the outer walls of the inlet pipe and the outlet pipe are both fixedly connected to the inner wall of the box, the outer wall of the return spring and the protective bellows away from the one-way piston is fixedly connected to the inner wall of the inlet pipe, the outer wall of the water collection tank is also provided with an inlet pipe and an outlet pipe, and the inlet pipe is also equipped with a one-way piston, a return spring and a protective bellows, but in opposite directions, in order to prevent excessive water flow in the water collection tank and overflow of the box.

[0010] Preferably, the circulation device includes a water storage tank, with a brush fixedly connected to the inner wall of the water storage tank and a filter cylinder rotatably connected to the inner wall of the water storage tank. The water flowing into the water collection tank area is pumped into the circulation device by a water pump. The water flows into the water storage tank of the circulation device and impacts the filter cylinder and the rotating fan at the bottom of the filter cylinder. The rotating fan drives the filter cylinder to rotate, so that all surfaces of the filter cylinder are fully utilized. The rotating filter cylinder slides over the brush, and the brush removes the deposits on it. The water flowing into the filter cylinder is filtered again by the filter element and then enters the spraying cylinder through the water pipe.

[0011] Preferably, a rotating fan is rotatably connected to the bottom of the water filter cylinder, and a filter element is fixedly connected to the inner wall of the water filter cylinder by wedges. The water storage cylinder and the water filter cylinder are divided into upper and lower parts and are fixedly connected by bolts. The water storage cylinder and the water filter cylinder are supported by transparent materials, such as acrylic sheets, so that the status of the filter element can be easily observed through the water storage cylinder and the water filter cylinder to determine whether it has reached the filtration limit. After reaching the limit, the bolts are loosened, the water storage cylinder and the water filter cylinder are opened, and the filter element is replaced. If it is found that there is still too much filter residue inside the water storage cylinder and the water filter cylinder, the butterfly valve at the bottom of the water storage cylinder needs to be opened to drain the sewage.

[0012] Preferably, the outer wall of the water storage cylinder is fixedly connected to the water pump via a water pipe, and the outer wall of the end of the water storage cylinder away from the water pump is fixedly connected to the outer wall of the spray cylinder via a water pipe. The outer wall of the brush is slidably connected to the outer wall of the filter cylinder. This invention achieves water resource recycling and saves resources by setting up a filtration device and a circulation device. The filtration device filters the dust-containing mud, and the separated water enters the water collection tank through the inlet and outlet pipes. Then, the water pump sends it to the circulation device for secondary filtration and reuses it for spraying, forming a complete water circulation system and reducing water resource consumption.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. This invention achieves dust removal and protects the environment and the health of operators by setting up a cutting device. When the equipment is cutting floor tiles, the water spray nozzle in the spray mechanism can refine the water flow into water mist, which fully combines with the dust generated by cutting to form mud, effectively preventing dust from spreading into the air, reducing harm to the health of construction workers and pollution to the environment, and achieving the effect of environmentally friendly dust removal.

[0015] 2. This invention achieves water resource recycling and saves resources by setting up a filtration device and a circulation device. The filtration device filters the dust-containing sludge, and the separated water enters the water collection tank through the inlet and outlet pipes. Then, the water is pumped into the circulation device for secondary filtration and reused for spraying, forming a complete water circulation system and reducing water consumption.

[0016] 3. This invention, by setting up a cutting device, is highly adaptable and meets diverse processing needs. The distance between the clamping plates can be adjusted by twisting the screw on the positioning clamp, and the distance between the shearing blade and the fixing frame can be changed by rotating the displacement ring, so as to adapt to the cutting and dust reduction needs of different specifications of floor tiles. At the same time, the floor tiles can rotate with the positioning clamp, telescopic rod, etc., which facilitates the subsequent processing of unprocessed areas, improving the flexibility and practicality of the equipment.

[0017] 4. This invention features a circulation device that facilitates maintenance and ensures stable equipment operation. The water storage tank and filter tank are made of transparent materials (such as acrylic sheets), allowing for easy and direct observation of the filter element status and filter residue. The filter element can be replaced in a timely manner, or sewage can be discharged through the bottom butterfly valve. When the filter tank rotates, it comes into contact with the brush, which can automatically remove the deposits on the outer wall, reducing manual cleaning costs and extending the service life of the equipment. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the structure of the present invention;

[0019] Figure 2 is a schematic diagram of the back structure of the present invention;

[0020] Figure 3 is a schematic diagram of the internal structure of the present invention;

[0021] Figure 4 is a schematic diagram of the cutting device of the present invention;

[0022] Figure 5 is a structural schematic diagram of this limiting frame;

[0023] Figure 6 is a schematic diagram of the spray cylinder of the present invention;

[0024] Figure 7 is a schematic diagram of the connecting rod of the present invention;

[0025] Figure 8 is a schematic diagram of the filter device of the present invention;

[0026] Figure 9 is a magnified view of part A in Figure 8;

[0027] Figure 10 is a schematic diagram of the structure of the circulation device of the present invention;

[0028] Figure 11 is a schematic diagram of the structure of the water filter cylinder of the present invention;

[0029] Figure 12 is a schematic diagram of the rotating fan of the present invention.

[0030] In the diagram: 1. Housing; 2. Drive motor; 3. Pulley assembly; 4. Water pump; 5. Cutting device; 6. Filtering device; 7. Circulation device; 50. Support plate; 51. Fixing plate; 52. Limiting frame; 53. Retention plate; 54. Tray; 55. Return spring; 56. Upper ratchet; 57. Lower ratchet; 58. Support spring; 59. Telescopic rod; 510. Positioning clamp; 511. Spraying mechanism; 5110. Spraying cylinder; 5111. Water outlet piston; 5112. Retention spring 5113. Spring; 5114. Protective bellows; 5115. Fixing frame; 5116. Sprayer head; 5117. Connecting rod; 5118. Rotating shaft; 5119. Shearing blade; 5110. Displacement ring; 60. Guide plate; 61. Filter cylinder; 62. Feeding screw; 63. Water inlet pipe; 64. One-way piston; 65. Return spring; 66. Protective bellows; 67. Water outlet pipe; 70. Water storage tank; 71. Brush; 72. Water filter cylinder; 73. Rotating fan; 74. Filter element. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0032] Example:

[0033] Please refer to Figures 1-12. This invention provides a technical solution: an environmentally friendly dust removal device for construction sites, comprising: a housing 1; a drive motor 2 fixedly connected to the outer wall of the housing 1; a pulley assembly 3 at the output end of the drive motor 2; a water pump 4 fixedly connected to the inner wall of the housing 1; a cutting device 5 inside the housing 1; a filter device 6 at the bottom of the cutting device 5; and a circulation device 7 on one side of the filter device 6; the cutting device 5 includes a support plate 50; a fixing plate 51 fixedly connected to the outer wall of the support plate 50; and a rotating inner wall of the fixing plate 51. The device is connected to a limit frame 52. A fixing plate 53 is slidably connected to the outer wall of the limit frame 52. A tray 54 is slidably connected to the outer wall of the fixing plate 53. A return spring 55 is fixedly connected to the inner wall of the tray 54. An upper ratchet 56 is fixedly connected to the outer wall of the fixing plate 53. A lower ratchet 57 is meshed with the outer wall of the upper ratchet 56. A support spring 58 is fixedly connected to the outer wall of the lower ratchet 57. A telescopic rod 59 is rotatably connected to the outer wall of the fixing plate 53. A positioning clamp 510 is rotatably connected to one end of the telescopic rod 59. A spraying mechanism 511 is provided on one side of the positioning clamp 510.

[0034] The spraying mechanism 511 includes a spray cylinder 5110. A water outlet piston 5111 is slidably connected to the inner wall of the spray cylinder 5110. A retaining spring 5112 and a protective bellows 5113 are fixedly connected to the outer wall of the water outlet piston 5111. A fixing frame 5114 is fixedly connected to the outer wall of the spray cylinder 5110. A water spray nozzle 5115 is fixedly connected to the outer wall of the bottom end of the spray cylinder 5110. A connecting rod 5116 is rotatably connected to the outer wall of the fixing frame 5114. A shearing blade 5118 is rotatably connected to the outer wall of the connecting rod 5116. A displacement ring 5119 is slidably connected to the outer wall of the connecting rod 5116. A rotating shaft 5117 is threadedly connected to the outer wall of the displacement ring 5119.

[0035] The outer wall of the support plate 50 is fixedly connected to the inner wall of the box 1, the outer wall of the tray 54 is slidably connected to the inner wall of the limit frame 52, the end of the return spring 55 away from the outer wall of the tray 54 is fixedly connected to the inner wall of the limit frame 52, the end of the support spring 58 away from the lower ratchet 57 is fixedly connected to the outer wall of the fixing plate 51, and the inner wall of the positioning clamp 510 is slidably connected to the outer wall of the tray 54.

[0036] The outer wall of the retaining spring 5112 and the protective bellows 5113 away from the water outlet piston 5111 is fixedly connected to the inner wall of the spray cylinder 5110. The outer walls of the fixing bracket 5114 and the shear blade 5118 are slidably connected to the inner wall of the rotating shaft 5117. The outer wall of the rotating shaft 5117 is rotatably connected to the inner wall of the housing 1. The outer wall of the rotating shaft 5117 is connected to the output end of the drive motor 2 through the pulley set 3.

[0037] The filter device 6 includes a guide plate 60, a filter cake cylinder 61 is fixedly connected to the outer wall of the guide plate 60, a feeding screw rod 62 is rotatably connected to the inner wall of the filter cake cylinder 61, a water inlet pipe 63 is provided at the bottom of the filter cake cylinder 61, a one-way piston 64 is slidably connected to the inner wall of the water inlet pipe 63, a return spring 65 and a protective bellows 66 are fixedly connected to the inner wall of the one-way piston 64, and a water outlet pipe 67 is connected to the water inlet pipe 63 through a flange.

[0038] The outer wall of the guide plate 60 is fixedly connected to the inner wall of the box 1, the outer wall of the filter cylinder 61 is fixedly connected to the inner wall of the box 1, the outer wall of the feeding screw 62 is fixedly connected to the output end of the drive motor 2, the outer walls of the water inlet pipe 63 and the water outlet pipe 67 are both fixedly connected to the inner wall of the box 1, and the outer wall of the return spring 65 and the protective bellows 66 at the end away from the one-way piston 64 is fixedly connected to the inner wall of the water inlet pipe 63.

[0039] The circulation device 7 includes a water storage cylinder 70, a brush 71 fixedly connected to the inner wall of the water storage cylinder 70, and a filter cylinder 72 rotatably connected to the inner wall of the water storage cylinder 70.

[0040] A rotating fan 73 is rotatably connected to the bottom of the water filter cylinder 72, and a filter element 74 is fixedly connected to the inner wall of the water filter cylinder 72 by a wedge block.

[0041] The outer wall of the water storage cylinder 70 is fixedly connected to the water pump 4 via a water pipe. The outer wall of the end of the water storage cylinder 70 away from the water pump 4 is fixedly connected to the outer wall of the spray cylinder 5110 via a water pipe. The outer wall of the brush 71 is slidably connected to the outer wall of the filter cylinder 72.

[0042] Working principle:

[0043] When a large number of floor tiles need to be processed at a construction site, cutting them generates a lot of dust, which can damage people and the environment. When floor tiles need to be processed in batches, the pull rod on the fixed plate 51 in the cutting device 5 is pulled to pull the fixed plate 51 out of the box 1. At this time, the floor tiles to be processed are placed in the tray 54. The weight of the floor tiles presses down on the tray 54, and the downward-pressed tray 54 compresses the return spring 55. The tray 54 presses down on the fixing plate 53, and the fixing plate 53 moves down. The upper ratchet 56 connected to the fixing plate 53 presses down on the lower ratchet 57, compressing the support spring 58. The downward-moving fixing plate 53 pulls the telescopic rod 59, causing the telescopic rod 59 to retract. This causes the positioning clamp 510 connected to the telescopic rod 59 to retract along the guide rail on the outer wall of the tray 54 towards the center, clamping the floor tiles placed on the tray 54.

[0044] After clamping the floor tile, push the lever to push the floor tile into the box 1. Once the floor tile is pushed into the box 1, the drive motor 2 drives the shearing blade 5118 in the spray mechanism 511 to cut the floor tile through the pulley group 3 and the rotating shaft 5117. During cutting, the water pump 4 pumps the water from the water tank at the bottom of the box 1 into the spray cylinder 5110 through the circulation device 7. The water flowing into the spray cylinder 5110 pushes open the water outlet piston 5111, compresses the retaining spring 5112 and the protective bellows 5113, and the water flow after entering the water spray head 5115 is atomized into water mist by the water spray head 5115. The atomized water mist combines with the floor tile dust generated by cutting the floor tile to become mud, which flows into the filter device 6 through the holes on the support plate 50.

[0045] After the floor tile is cut, if there is still an unprocessed area to be processed, pull out the floor tile, hold it down, apply force clockwise to make it rotate clockwise, drive the positioning clamp 510, telescopic rod 59, tray 54 and limit bracket 52 to rotate 90 degrees, so that the unprocessed area is aligned with the shearing blade 5118, and continue to push the pull rod to perform subsequent processing on the floor tile.

[0046] When the floor tile is small, twisting the screw on the positioning clamp 510 reduces the spacing between the clamping plates, allowing it to hold the smaller tile. Simultaneously, rotating the displacement ring 5119 inwards to a designated position moves the connecting rod 5116 to that position. The connecting rod 5116 then moves the shearing blade 5118 and the fixing frame 5114, reducing their spacing to allow for cutting smaller tiles and dust suppression. When the floor tile is large, twisting the screw on the positioning clamp 510 increases the spacing between the clamping plates, allowing it to hold the larger tile. Simultaneously, rotating the displacement ring 5119 inwards to a designated position moves the connecting rod 5116 to that position. The connecting rod 5116 then moves the shearing blade 5118 and the fixing frame 5114, increasing their spacing to allow for cutting larger tiles and dust suppression.

[0047] After the mud slurry enters the filtration device 6, it is guided by the guide plate 60 into the filter cake cylinder 61. The mud slurry inside the filter cake cylinder 61 is conveyed outward by the feeding screw 62. During the conveying process, the mud slurry is squeezed by the blades of the feeding screw 62, causing the water in the mud slurry to pass through the holes of the filter cake cylinder 61 and enter the settling tank area inside the box 1. The water after the filter cake is further settled, separating fine dust. The dewatered mud slurry has a lower water content and is sent out of the box 1 by the feeding screw 62. The water after further settling passes through the water inlet pipe 63 from the settling tank, squeezes the one-way piston 64, compresses the return spring 65 and the protective bellows 66, and enters the water outlet pipe 67 through the flange, entering the water collection tank area.

[0048] The outer wall of the water collection tank is also equipped with an inlet pipe 63 and an outlet pipe 67. The inlet pipe 63 is also equipped with a one-way piston 64, a return spring 65 and a protective bellows 66, but in opposite directions, in order to prevent excessive water flow in the water collection tank from overflowing the tank body 1.

[0049] The water flowing into the water collection tank area is pumped into the circulation device 7 by the water pump 4. The water flows into the water storage tank 70 of the circulation device 7 and impacts the filter cylinder 72 and the rotating fan 73 at the bottom of the filter cylinder 72. The rotating fan 73 drives the filter cylinder 72 to rotate, so that all surfaces of the filter cylinder 72 are fully utilized. The rotating filter cylinder 72 slides over the brush 71 and is cleaned of the adhering substances by the brush 71. The water flowing into the filter cylinder 72 is filtered again by the filter element 74 and then enters the spray cylinder 5110 through the water pipe.

[0050] The water storage cylinder 70 and the water filter cylinder 72 are divided into upper and lower parts and are fixedly connected by bolts. The water storage cylinder 70 and the water filter cylinder 72 are supported by transparent materials, such as acrylic sheets, so that the status of the filter element 74 can be observed through the water storage cylinder 70 and the water filter cylinder 72 to determine whether it has reached the upper limit of filtration. After reaching the upper limit, the bolts are loosened, the water storage cylinder 70 and the water filter cylinder 72 are opened, and the filter element 74 is replaced. If it is found that there is still too much filter residue in the water storage cylinder 70 and the water filter cylinder 72, the butterfly valve at the bottom of the water storage cylinder 70 needs to be opened to drain the sewage.

[0051] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An environmentally friendly dust removal device for construction sites, comprising: The box body (1) is characterized in that a drive motor (2) is fixedly connected to the outer wall of the box body (1), a pulley group (3) is provided at the output end of the drive motor (2), a water pump (4) is fixedly connected to the inner wall of the box body (1), a cutting device (5) is provided inside the box body (1), a filter device (6) is provided at the bottom of the cutting device (5), and a circulation device (7) is provided on one side of the filter device (6); the cutting device (5) includes a support plate (50), a fixing plate (51) is fixedly connected to the outer wall of the support plate (50), and a limit frame (52) is rotatably connected to the inner wall of the fixing plate (51). 52) has a retaining plate (53) slidably connected to its outer wall. The retaining plate (53) has a tray (54) slidably connected to its outer wall. The inner wall of the tray (54) is fixedly connected to a return spring (55). The outer wall of the retaining plate (53) is fixedly connected to an upper ratchet (56). The outer wall of the upper ratchet (56) is meshed with a lower ratchet (57). The outer wall of the lower ratchet (57) is fixedly connected to a support spring (58). The outer wall of the retaining plate (53) is rotatably connected to a telescopic rod (59). One end of the telescopic rod (59) is rotatably connected to a positioning clamp (510). A spraying mechanism (511) is provided on one side of the positioning clamp (510).

2. The dust removal equipment for environmental protection at construction sites according to claim 1, characterized in that: The spraying mechanism (511) includes a spray cylinder (5110), a water outlet piston (5111) is slidably connected to the inner wall of the spray cylinder (5110), a retaining spring (5112) and a protective bellows (5113) are fixedly connected to the outer wall of the water outlet piston (5111), a fixing frame (5114) is fixedly connected to the outer wall of the spray cylinder (5110), a water spray nozzle (5115) is fixedly connected to the bottom outer wall of the spray cylinder (5110), a connecting rod (5116) is rotatably connected to the outer wall of the fixing frame (5114), a shearing blade (5118) is rotatably connected to the outer wall of the connecting rod (5116), a displacement ring (5119) is slidably connected to the outer wall of the connecting rod (5116), and a rotating shaft (5117) is threadedly connected to the outer wall of the displacement ring (5119).

3. The dust removal equipment for environmental protection at construction sites according to claim 1, characterized in that: The outer wall of the support plate (50) is fixedly connected to the inner wall of the box (1), the outer wall of the tray (54) is slidably connected to the inner wall of the limiting frame (52), the end of the reset spring (55) away from the outer wall of the tray (54) is fixedly connected to the inner wall of the limiting frame (52), the end of the support spring (58) away from the lower ratchet (57) is fixedly connected to the outer wall of the fixing plate (51), and the inner wall of the positioning clamp (510) is slidably connected to the outer wall of the tray (54).

4. The dust removal equipment for environmental protection at construction sites according to claim 2, characterized in that: The outer wall of the end of the retaining spring (5112) and the protective bellows (5113) away from the water outlet piston (5111) is fixedly connected to the inner wall of the spray cylinder (5110). The outer walls of the fixing bracket (5114) and the shear blade (5118) are slidably connected to the inner wall of the rotating shaft (5117). The outer wall of the rotating shaft (5117) is rotatably connected to the inner wall of the box (1). The outer wall of the rotating shaft (5117) is connected to the output end of the drive motor (2) through the pulley group (3).

5. The dust removal equipment for environmental protection at construction sites according to claim 1, characterized in that: The filter device (6) includes a guide plate (60), a filter cake cylinder (61) is fixedly connected to the outer wall of the guide plate (60), a feeding screw rod (62) is rotatably connected to the inner wall of the filter cake cylinder (61), a water inlet pipe (63) is provided at the bottom of the filter cake cylinder (61), a one-way piston (64) is slidably connected to the inner wall of the water inlet pipe (63), a return spring (65) and a protective bellows (66) are fixedly connected to the inner wall of the one-way piston (64), and a water outlet pipe (67) is connected to the water inlet pipe (63) through a flange.

6. The dust removal equipment for environmental protection at construction sites according to claim 5, characterized in that: The outer wall of the guide plate (60) is fixedly connected to the inner wall of the box (1), the outer wall of the filter cylinder (61) is fixedly connected to the inner wall of the box (1), the outer wall of the feeding screw (62) is fixedly connected to the output end of the drive motor (2), the outer walls of the water inlet pipe (63) and the water outlet pipe (67) are both fixedly connected to the inner wall of the box (1), and the outer wall of the return spring (65) and the protective bellows (66) at the end away from the one-way piston (64) is fixedly connected to the inner wall of the water inlet pipe (63).

7. The dust removal equipment for environmental protection at construction sites according to claim 1, characterized in that: The circulation device (7) includes a water storage cylinder (70), a brush (71) is fixedly connected to the inner wall of the water storage cylinder (70), and a filter cylinder (72) is rotatably connected to the inner wall of the water storage cylinder (70).

8. The dust removal equipment for environmental protection at construction sites according to claim 7, characterized in that: The bottom of the filter cylinder (72) is rotatably connected to a rotating fan (73), and the inner wall of the filter cylinder (72) is fixedly connected to a filter element (74) by a wedge.

9. A dust removal device for environmental protection at a construction site according to claim 7, characterized in that: The outer wall of the water storage cylinder (70) is fixedly connected to the water pump (4) via a water pipe. The outer wall of the end of the water storage cylinder (70) away from the water pump (4) is fixedly connected to the outer wall of the spray cylinder (5110) via a water pipe. The outer wall of the brush (71) is slidably connected to the outer wall of the filter cylinder (72).

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