A dust removal equipment for civil construction

Abstract

The application discloses a dust removal equipment for civil construction, which is characterized in that the dust removal equipment comprises a box body, a dust suction pipe, an air inlet pipe, an air suction fan, a spiral plate, a plurality of spray heads and a spray pipe. The dust in the air entering the dust suction pipe is adsorbed by water through the spray heads and the spray pipe, and then flows into the box body together, and the clean air is discharged through the air suction fan, so that the dust adsorbed by water cannot fall to the ground and be raised again.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of civil construction, more particularly, it relates to a dust removal equipment for civil construction. BACKGROUND

[0002] In the process of civil construction, a large amount of dust is generated in the process due to poor construction environment, which pollutes the air and even causes respiratory diseases if inhaled by construction workers. Therefore, dust removal equipment is often used in construction areas with a lot of dust to reduce the dust in the air.

[0003] In the prior art, water mist is sprayed into the air through an atomizing nozzle, and the dust particles in the air are adsorbed by the water mist and then fall to the ground to clean the dust in the air. However, the dust generated by the construction is transferred to the ground when the water mist adsorbing the dust falls to the ground. When the ground is blown by the wind, walked on by people or driven on by vehicles, the dust on the ground will be raised again due to the disturbance of the air, thereby reducing the dust removal effect. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a dust removal equipment for civil construction, which uses a spray head and a spray pipe to adsorb the dust in the air entering the dust suction pipe with water, and then flows into the box together, and the clean air is discharged by the air suction fan, so that the dust adsorbed by water will not fall to the ground and be raised again.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a dust removal equipment for civil construction, comprising a box, a plurality of rollers for moving the box are arranged at the bottom of the box, and a motor for driving the rollers to rotate is arranged at the bottom of the box;

[0006] A dust suction pipe is fixedly connected to the top of the box, and the axis of the dust suction pipe is vertically arranged.

[0007] An air inlet pipe is fixedly connected to one side of the top of the dust suction pipe.

[0008] An air suction fan is arranged at the position close to the top on one side of the box, and the air suction fan is used to discharge the air in the box to the outside.

[0009] A spiral plate is arranged in the dust suction pipe and spirally arranged around the axis of the dust suction pipe, the outer side of the spiral plate is attached to the inner wall of the dust suction pipe, and the inner part of the spiral plate is provided with a spiral channel.

[0010] The spray head is arranged on the spiral plate, and a plurality of spray heads are arranged on the spiral plate along the spiral direction of the spiral plate.

[0011] The spray pipe is arranged as an annular pipe, and the spray pipe is arranged in the dust suction pipe and close to the bottom of the air inlet pipe.

[0012] The application further provides that the spiral plate is fixedly connected to the rotating shaft.

[0013] The rotating shaft is hollow inside, and the hollow cavity inside the rotating shaft is communicated with the spiral channel in the spiral plate.

[0014] The application further provides that the inner wall of the dust suction pipe is provided with a guide groove vertically arranged along the length direction, and the cross section of the guide groove is arranged as a convex letter shape with the narrow side arranged on the side close to the axis of the dust suction pipe.

[0015] The guide groove is provided with a guide block matched with the guide groove, and the guide block can slide in the guide groove.

[0016] The guide block is fixedly connected with a lifting rod arranged along the radial direction of the dust suction pipe at the end close to the rotating shaft, and the bottom of the lifting rod is fixedly connected with a soft brush.

[0017] The application further provides that a plurality of air inlet pipes are arranged around the dust suction pipe, the axis of the air inlet pipe is arranged along the radial direction of the dust suction pipe, and the end of the air inlet pipe away from the dust suction pipe is closed.

[0018] The application further provides that the bottom end of the dust outlet pipe extends into the box, the box is provided with a filter screen, and the filter screen can fit and cover the bottom end of the dust outlet pipe.

[0019] The application further provides that the support frame is sleeved outside the filter screen, and the filter screen is fixedly connected to the support frame.

[0020] The support frame is rotatably connected to the lifting frame, and the lifting frame can move up and down.

[0021] The application is further provided with: the lifting frame comprises cross bars, two of which are arranged on the two sides of the supporting frame, the length direction of the two cross bars is horizontal and parallel to each other, and the two ends of the cross bars extend from the two sides of the box, the two sides of the box are provided with two sliding grooves, and the two cross bars are inserted into the two sliding grooves and can slide up and down in the sliding grooves.

[0022] longitudinal rods, two of which are arranged at the two ends of the cross bars, and the two ends of the longitudinal rods are fixedly connected with the two cross bars;

[0023] and rotating rods, two of which are fixedly connected with the supporting frame near the two ends of the longitudinal rods, the two rotating rods pass through the side walls on the two sides of the box and are rotatably connected with the two longitudinal rods, and the two rotating rods are coaxially arranged;

[0024] the two sides of the box are provided with two accommodation grooves corresponding to the two rotating rods, and the rotating rods slide up and down in the accommodation grooves.

[0025] The application is further provided with: the length direction and the width direction of the box are horizontally arranged, and the length direction of the cross bar and the rotating rod is parallel to the width direction of the box;

[0026] one end of the box is provided with an open port, the open port is provided with a sealing plate which is detachably connected with the box and can seal the open port, the sealing plate is fixedly connected with a sedimentation block which can be inserted into the box;

[0027] a space is left between the end of the sedimentation block away from the open port and the inner wall of the end of the box away from the open port, and the two sides of the sedimentation block are attached to the inner walls of the two sides of the box;

[0028] the top of the sedimentation block is provided with an inclined surface, the end of the inclined surface away from the sealing plate is arranged in a downward inclined manner, and a plurality of blocking edges are arranged on the inclined surface, and the length direction of the blocking edges is arranged along the width direction of the box;

[0029] the sedimentation block is arranged below the dust suction pipe.

[0030] The application is further provided with: the side surface of the blocking edge near the sealing plate is perpendicular to the inclined surface of the top of the sedimentation block, and the side surface of the blocking edge away from the sealing plate is arranged vertically;

[0031] the top of the sedimentation block is provided with a plurality of receiving grooves, each receiving groove corresponds to a blocking edge, the receiving grooves are arranged vertically, and the receiving grooves are arranged on the corresponding blocking edges near the sealing plate;

[0032] the bottom of the receiving groove is provided with a vertical downward penetrating sewage hole of the sedimentation block, and the sewage hole is provided with an elastic plug for sealing the sewage hole.

[0033] The air extraction fan is arranged at a position close to the top on the side of the box body away from the blocking plate.

[0034] The water extraction pump is arranged on the side of the box body away from the blocking plate, and is used to supply water to the spray pipe.

[0035] The dust extraction pipe is arranged at one end of the top of the box body close to the blocking plate, and a water purification tank is fixedly connected to the other end of the top of the box body away from the dust extraction pipe, and the water purification tank is used to supply water to the water inlet pipe.

[0036] Compared with the prior art, the present application has the following beneficial effects: the present application uses the spray head and the spray pipe, so that the dust in the air entering the dust extraction pipe is adsorbed by water and then flows into the box body together, and the clean air is discharged by the air extraction fan, so that the dust adsorbed by water does not fall to the ground and is not raised again. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a schematic view of the overall structure of the embodiment.

[0038] Figure 2 It is a schematic view of the overall structure of the embodiment. Figure 1

[0039] Figure 3 It is a sectional view of the dust extraction pipe of the embodiment.

[0040] Figure 4 It is a sectional view of the dust extraction pipe of the embodiment. Figure 3

[0041] It is a schematic view of the guiding groove of the embodiment. Figure 5

[0042] It is a schematic view of the guiding groove of the embodiment. Figure 6 Figure 5 It is a schematic view of the guiding groove of the embodiment.

[0043] Figure 7 It is a schematic view of the guiding groove of the embodiment. Figure 1

[0044] It is a schematic view of the guiding groove of the embodiment. Figure 8

[0045] It is a schematic view of the guiding groove of the embodiment. Figure 9

[0046] It is a schematic view of the guiding groove of the embodiment. Figure 10 Figure 9 It is a schematic view of the guiding groove of the embodiment.

[0047] Figure 11 It is a schematic view of the guiding groove of the embodiment.

[0048] ​​​In the figure: 1, box body; 11, open port; 12, blocking plate; 13, roller; 14, sliding groove; 15, let go of the slot; 2, dust suction pipe; 21, guide groove; 3, air inlet pipe; 31, air inlet hole; 4, spiral plate; 41, spray head; 5, spray pipe; 6, rotating shaft; 61, water inlet pipe; 7, lifting rod; 71, soft brush; 72, guide block; 8, filter screen; 81, support frame; 82, rotating rod; 83, lifting frame; 831, cross rod; 832, vertical rod; 9, sediment block; 91, blocking edge; 92, containing groove; 93, sewage hole; 10, clean water tank. DETAILED DESCRIPTION

[0049] In order to make the personnel in the art better understand the technical solutions of the present application, the technical solutions of the present application will be described clearly and completely below in combination with the drawings of the present application. Other similar embodiments obtained by the person skilled in the art without creative labor on the basis of the embodiments in the present application shall all belong to the scope of protection of the present application. In addition, the direction words mentioned in the following embodiments, such as "up", "down", "left", "right", etc. are only the directions of the drawings, therefore, the direction words used are used to illustrate but not to limit the present application.

[0050] The present application will be further described below in combination with the drawings and preferred embodiments.

[0051] Embodiment: A dust removal equipment for civil construction, referring to the drawings Figure 1 -Appendix Figure 11 , including box body 1, dust suction pipe 2, air inlet pipe 3, air suction fan, spiral plate 4, spray head 41 and spray pipe 5, the bottom of the box body 1 is provided with a plurality of rollers 13 for moving the box body 1, and the bottom of the box body 1 is provided with a motor for driving the rollers 13 to rotate; the dust suction pipe 2 is fixedly connected to the top of the box body 1, and the axis of the dust suction pipe 2 is vertically arranged; the air inlet pipe 3 is fixedly connected to one side of the top of the car washing pipe; the air suction fan is arranged at the position close to the top on one side of the box body 1, and is used for discharging the air in the box body 1 outward; the spiral plate 4 is arranged in the dust suction pipe 2 and spirally arranged around the axis of the dust suction pipe 2, the outer side of the spiral of the spiral plate 4 is attached to the inner wall of the dust suction pipe 2, and the inside of the spiral plate 4 is provided with a spiral channel; a plurality of spray heads 41 are arranged on the spiral plate 4, and the plurality of spray heads 41 are arranged on the spiral plate 4 along the spiral direction of the spiral plate 4, and the spray heads 41 are arranged at the bottom of the part of the spiral plate 4 connected with the spray heads 41; the spray pipe 5 is arranged as an annular pipe, and the spray pipe 5 is arranged in the dust suction pipe 2 close to the bottom of the air inlet pipe 3.

[0052] The box 1 moves in the construction site by the action of the bottom roller 13 of the box 1. During the movement of the box 1, the air suction fan works. Under the action of the air suction fan, the air with dust from the outside enters the dust suction pipe 2 through the air inlet pipe 3 and spirally flows downward in the dust suction pipe 2 under the action of the spiral plate 4. During the spiral flow of the air, the dust particles continuously change the flow direction and impact the inner wall of the dust suction pipe 2, so that the dust easily loses power and falls onto the spiral plate 4. During the spiral downward flow of the air, the water mist sprayed by the spray head 41 can adsorb the dust in the air and drive the adsorbed dust to fall onto the spiral plate 4. The water sprayed on the spray pipe 5 can adsorb part of the dust and also drive the dust on the spiral plate 4 to flow downward along the spiral plate 4 to the box 1. The dust stays in the box 1, and the clean air is discharged through the air suction fan.

[0053] Specifically, the embodiment further includes a rotating shaft 6 rotatably connected to the top of the dust suction pipe 2, and the rotating shaft 6 is coaxially arranged with the dust suction pipe 2. The spiral plate 4 is fixedly connected to the rotating shaft 6. The rotating shaft 6 is hollow inside, and the hollow cavity inside the rotating shaft 6 is in communication with the spiral channel inside the spiral plate 4. The top of the rotating shaft 6 extends upward out of the dust suction pipe 2 and is connected with the water inlet pipe 61. The rotating shaft 6 is rotatably connected to the water inlet pipe 61.

[0054] Specifically, the inner wall of the dust suction pipe 2 is provided with a lengthwise vertical guide groove 21. The cross section of the guide groove 21 is arranged in a convex shape, and the narrow side is arranged on the side close to the axis of the dust suction pipe 2. The guide groove 21 is provided with a guide block 72 matched with the guide groove 21. The guide block 72 can slide in the guide groove 21. The end of the guide block 72 close to the rotating shaft 6 is fixedly connected with a lifting rod 7 arranged in the radial direction of the dust suction pipe 2. The bottom of the lifting rod 7 is fixedly connected with a soft brush 71. The soft brush 71 is in contact with the spiral plate 4. The bottom of the soft brush 71 is in contact with the top of the part of the spiral plate 4 in contact with the soft brush 71.

[0055] When the dust adheres to the spiral plate 4 and cannot be washed away by the flow of water, the rotating shaft 6 drives the spiral plate 4 to rotate. Under the action of the spiral plate 4, the lifting rod 7 moves up and down and the soft brush 71 at the bottom of the lifting rod 7 brushes the dust adhered to the spiral plate 4, so that the dust adhered to the spiral plate 4 falls off from the spiral plate 4.

[0056] Specifically, the top of the dust suction pipe 2 is fixedly connected with a motor in transmission connection with the rotating shaft 6.

[0057] Specifically, the air inlet pipe 3 is provided with multiple air inlet pipes 3, the multiple air inlet pipes 3 are arranged around the dust suction pipe 2, the axis of the air inlet pipe 3 is arranged along the radial direction of the dust suction pipe 2, and the end of the air inlet pipe 3 away from the dust suction pipe 2 is closed. The air inlet pipe 3 is provided with a plurality of air inlet holes 31 arranged around the air inlet pipe 3, and the air inlet hole 31 penetrates the side wall of the air inlet pipe 3.

[0058] Specifically, the bottom end of the dust outlet pipe extends downward into the box 1, and the box 1 is provided with a filter screen 8, which can fit and cover the bottom end of the dust outlet pipe.

[0059] The water flowing downward in the dust suction pipe 2 can pass through the filter screen 8 and keep the filter screen 8 wet. The air passing through the filter screen 8 will be in sufficient contact with water during the process of passing through the filter screen 8, so that the dust can be filtered out.

[0060] Specifically, the embodiment also includes a support frame 81 and a lifting frame 83, the support frame 81 is sleeved outside the filter screen 8, and the filter screen 8 is fixedly connected to the support frame 81; the support frame 81 is rotatably connected to the lifting frame 83, and the lifting frame 83 can move up and down.

[0061] Through the arrangement of the support frame 81 and the lifting frame 83, when the top of the filter screen 8 is full of dust, the lifting frame 83 is moved downward, so that the filter screen 8 is separated from the bottom of the dust suction pipe 2, and there is enough distance between the filter screen 8 and the dust suction pipe 2 to make the filter screen 8 turn 180°. Then the lifting frame 83 moves upward again to cover the filter screen 8 at the bottom of the dust suction pipe 2. At this time, the side of the filter screen 8 full of dust is located at the bottom of the filter screen 8, and the water flowing downward in the dust suction pipe 2 will wash away the dust adsorbed on the bottom of the filter screen 8 during the process of passing through the filter screen 8.

[0062] Specifically, the lifting frame 83 includes a horizontal rod 831, a vertical rod 832 and a rotating rod 82, the horizontal rod 831 is provided with two and located on both sides of the support frame 81, the length direction of the two horizontal rods 831 is horizontal and parallel to each other, the two ends of the horizontal rod 831 respectively extend from the two sides of the box 1, the two sides of the box 1 are provided with two sliding grooves 14, and the two horizontal rods 831 are respectively inserted into the two sliding grooves 14 and can slide up and down in the sliding grooves 14; the vertical rod 832 is provided with two, the two vertical rods 832 are respectively arranged at the two ends of the horizontal rod 831, and the two ends of the vertical rod 832 are fixedly connected with the two horizontal rods 831; the support frame 81 is fixedly connected with two rotating rods 82 near the two ends of the two vertical rods 832, the two rotating rods 82 respectively penetrate the side walls of the two sides of the box 1 and are rotatably connected with the two vertical rods 832, and the two rotating rods 82 are coaxially arranged; the two sides of the box 1 are provided with two displacement grooves 15 corresponding to the two rotating rods 82, and the rotating rod 82 slides up and down in the displacement groove 15.

[0063] The top of the two sides of the box body 1 is provided with an electric cylinder for driving the lifting frame 83 to move up and down.

[0064] Specifically, the length direction and the width direction of the box body 1 are horizontally arranged, and the length direction of the cross rod 831 and the rotating rod 82 is parallel to the width direction of the box body 1; one end of the box body 1 is provided with an open port 11, and the open port 11 is provided with a sealing plate 12 which is detachably connected to the box body 1 and can seal the open port 11; the sealing plate 12 is fixedly connected with a sediment block 9 which can be inserted into the box body 1; the sediment block 9 is spaced apart from the inner wall of the box body 1 away from the open port 11, and the two sides of the sediment block 9 are respectively attached to the inner walls of the two sides of the box body 1; the top of the sediment block 9 is provided with an inclined surface, and the end of the inclined surface away from the sealing plate 12 is inclined downward, and a plurality of blocking edges 91 are arranged on the inclined surface, and the length direction of the blocking edges 91 is arranged along the width direction of the box body 1; the sediment block 9 is arranged below the dust suction pipe 2.

[0065] Through the arrangement of the sediment block 9 and the blocking edges 91, the water left in the dust suction pipe 2 can flow downward on the inclined surface, and the dust in the water can be blocked by the blocking edges 91 step by step, so as to realize the separation of dust and water.

[0066] Specifically, the side surface of the blocking edge 91 close to the sealing plate 12 is perpendicular to the inclined surface of the top of the sediment block 9, and the side surface of the blocking edge 91 away from the sealing plate 12 is vertically arranged; the top of the sediment block 9 is provided with a plurality of receiving grooves, each receiving groove 92 corresponds to a blocking edge 91, the receiving groove 92 is vertically arranged, and the receiving groove 92 is arranged on the side of the corresponding blocking edge 91 close to the sealing plate 12; the bottom of the receiving groove is provided with a sewage discharge hole 93 vertically penetrating through the sediment block 9, and the sewage discharge hole 93 is provided with an elastic plug for plugging the sewage discharge hole 93.

[0067] Through the arrangement of the receiving groove, the dust blocked by the blocking edge 91 can fall into the receiving groove for collection. When the dust collected in the receiving groove is too much, the sediment block 9 is taken out of the box body 1, the elastic plug in the sewage discharge hole 93 is pulled out, and the dust collected in the receiving groove is washed out by water flow.

[0068] Specifically, the air suction fan is arranged at a position close to the top on the side of the box body 1 away from the sealing plate 12; the box body 1 is provided with a water suction pump on the side away from the sealing plate 12, and the water suction pump is used to supply water to the spray pipe 5; the dust suction pipe 2 is arranged at the top of the box body 1 close to the sealing plate 12, and the top of the box body 1 is fixedly connected with a clean water tank 10 away from the dust suction pipe 2, and the clean water tank 10 is used to supply water to the water inlet pipe 61.

[0069] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A dust removal device for civil construction, characterized in that: Includes a housing (1), the bottom of which is provided with a plurality of rollers (13) for moving the housing (1), and the bottom of which is provided with a motor for rotating the rollers (13); A vacuum pipe (2) is fixedly connected to the top of the box (1), and the axis of the vacuum pipe (2) is vertically set; Air intake pipe (3), which is fixedly connected to one side of the top of the car wash pipe; An exhaust fan is installed on one side of the housing (1) near the top. The exhaust fan is used to exhaust the air inside the housing (1) to the outside. Spiral plate (4), the spiral plate (4) is arranged inside the suction pipe (2) and spirally arranged around the axis of the suction pipe (2). The outer spiral of the spiral plate (4) is in contact with the inner wall of the suction pipe (2). The spiral plate (4) has a spiral channel arranged spirally inside. Spray head (41), a plurality of spray heads (41) are provided on the spiral plate (4), the plurality of spray heads (41) are arranged on the spiral plate (4) along the spiral direction of the spiral plate (4), and the spray head (41) is located at the bottom of the spiral plate (4) part connected to the spray head (41); And a spray pipe (5), wherein the spray pipe (5) is configured as an annular pipe and is located inside the dust suction pipe (2) at a position close to the bottom of the air inlet pipe (3); The inner wall of the suction pipe (2) is provided with a vertical guide groove (21) in the length direction. The cross-section of the guide groove (21) is convex and the narrow side is located on the side of the guide groove (21) close to the axis of the suction pipe (2). The guide groove (21) is provided with a guide block (72) that cooperates with the guide groove (21), and the guide block (72) can slide within the guide groove (21); The guide block (72) is fixedly connected to a lifting rod (7) arranged in the radial direction of the suction pipe (2) along the length direction at one end near the rotating shaft (6). A soft brush (71) is fixedly connected to the bottom of the lifting rod (7). The soft brush (71) contacts the spiral plate (4). The bottom of the soft brush (71) and the top of the spiral plate (4) part that contacts the soft brush (71) are in contact. One end of the box (1) is provided with an opening (11), and a sealing plate (12) is provided at the opening (11) and is detachably connected to the box (1) and can seal the opening (11). A settling block (9) that can be inserted into the box (1) is fixedly connected to the sealing plate (12). There is a space between the end of the settling block (9) away from the opening (11) and the inner wall of the box (1) away from the opening (11), and the two sides of the settling block (9) are respectively attached to the inner walls of the two sides of the box (1). The top of the settling block (9) is set as an inclined surface, and the end of the inclined surface away from the sealing plate (12) is inclined downward. Several blocking ribs (91) are provided on the inclined surface, and the length direction of the blocking ribs (91) is set along the width direction of the box (1).

2. The dust removal equipment for civil construction according to claim 1, characterized in that: It also includes a rotating shaft (6), which is rotatably connected to the top of the suction pipe (2) and is coaxial with the suction pipe (2). The spiral plate (4) is fixedly connected to the rotating shaft (6). The rotating shaft (6) is hollow inside. The hollow cavity inside the rotating shaft (6) is connected to the spiral channel inside the spiral plate (4). The top of the rotating shaft (6) extends upward to the suction pipe (2) and is connected to the water inlet pipe (61). The rotating shaft (6) is rotatably connected to the water inlet pipe (61).

3. The dust removal equipment for civil construction according to claim 2, characterized in that: The air intake pipe (3) is provided in multiple ways, and multiple air intake pipes (3) are arranged around the dust suction pipe (2). The axis of the air intake pipe (3) is arranged along the radial direction of the dust suction pipe (2). The end of the air intake pipe (3) away from the dust suction pipe (2) is closed. Several air intake holes (31) are arranged around the air intake pipe (3) and the air intake holes (31) penetrate the side wall of the air intake pipe (3).

4. A dust removal device for civil construction according to claim 3, characterized in that: The bottom end of the suction pipe (2) extends downward into the housing (1), and the housing (1) is provided with a filter screen (8), which can fit and cover the bottom end of the suction pipe (2).

5. A dust removal device for civil construction according to claim 4, characterized in that: It also includes a support frame (81), which is sleeved on the outside of the filter screen (8), and the filter screen (8) is fixedly connected to the support frame (81); And a lifting frame (83), wherein the support frame (81) is rotatably connected to the lifting frame (83), and the lifting frame (83) is capable of moving up and down.

6. A dust removal device for civil construction according to claim 5, characterized in that: The lifting frame (83) includes two crossbars (831), which are located on both sides of the support frame (81). The length of the two crossbars (831) is horizontal and parallel to each other. The two ends of the crossbars (831) extend from both sides of the box (1). Both sides of the box (1) are provided with two sliding grooves (14). The two crossbars (831) are inserted into the two sliding grooves (14) and can slide up and down in the sliding grooves (14). The longitudinal bar (832) is provided in two parts, and the two longitudinal bars (832) are respectively provided at both ends of the cross bar (831). The two ends of the longitudinal bar (832) are respectively fixedly connected to the two cross bars (831); And rotating rods (82), the support frame (81) is fixedly connected to the two ends of the two longitudinal rods (832), the two rotating rods (82) pass through the side walls on both sides of the box (1) and are rotatably connected to the two longitudinal rods (832), and the two rotating rods (82) are coaxially arranged; The box body (1) has two clearance grooves (15) on both sides, which correspond to the two rotating rods (82) respectively. The rotating rods (82) slide up and down in the clearance grooves (15).

7. A dust removal device for civil construction according to claim 6, characterized in that: The box (1) is horizontally arranged in both length and width directions, and the length directions of the crossbar (831) and the rotating rod (82) are parallel to the width direction of the box (1). The settling block (9) is located below the suction pipe (2).

8. A dust removal device for civil construction according to claim 7, characterized in that: The side of the blocking ridge (91) near the sealing plate (12) is perpendicular to the inclined surface of the top of the settling block (9), and the side of the blocking ridge (91) away from the sealing plate (12) is vertically arranged. The top of the settling block (9) is provided with several storage slots, each storage slot (92) corresponds to a blocking ridge (91), the storage slots (92) are vertically arranged and the storage slots (92) are located on the side of the corresponding blocking ridge (91) close to the sealing plate (12); The bottom of the storage tank is provided with a drain hole (93) that extends vertically downward through the settling block (9), and an elastic plug is provided inside the drain hole (93) to seal the drain hole (93).

9. A dust removal device for civil construction according to claim 8, characterized in that: The exhaust fan is located on the side of the housing (1) away from the sealing plate (12) and near the top; A water pump is provided on the side of the box (1) away from the sealing plate (12), and the water pump is used to supply water to the spray pipe (5); The suction pipe (2) is located at the top of the box (1) near the sealing plate (12), and a water tank (10) is fixedly connected at the top of the box (1) away from the suction pipe (2). The water tank (10) is used to supply water to the water inlet pipe (61).

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