Dust falling device for highway construction

Abstract

The utility model provides a dust fall device for highway construction, which comprises a bottom box, a dust removal cylinder is arranged above the bottom box, one side of the dust removal cylinder is connected with a suction cylinder, one side of the suction cylinder is connected with a collection cylinder, the other side of the dust removal cylinder is connected with an exhaust cylinder, and the collection cylinder, the suction cylinder, the dust removal cylinder and the exhaust cylinder are connected through flanges; an exhaust fan blowing towards the dust removal cylinder is arranged in the suction cylinder, a spraying mechanism is arranged in the dust removal cylinder and comprises a primary spraying pipe and a secondary spraying pipe, and the primary spraying pipe and the secondary spraying pipe are communicated with each other and are connected with a water conveying pipe. By arranging the exhaust fan and the spraying pipe, external airflow with dust is fed into the dust removal cylinder to be filtered, and by arranging the air blocking net plate capable of reducing the air flow speed, water mist can be prevented from overflowing, and the influence on surrounding pedestrians is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust reduction in highway construction, in particular to a dust reduction device for highway construction. Background Art

[0002] During the highway construction process, a large amount of dust is often produced, and dust reduction devices are needed to reduce the dust. At present, most of the dust reduction devices used in highway construction are spraying devices. For example, the Chinese patent application number CN202021679258.6 discloses a water sprinkling dust reduction device for highway construction, which is to achieve dust reduction in the surrounding environment of the construction site by setting a dust reduction water tank, a top plate, a support frame, a dust reduction plate, a power box, a power block, a water pump, a connecting hose, a pull handle, a connecting pipe, a water distribution pipe, and an atomizing nozzle.

[0003] This device for reducing dust by sprinkling water still has some shortcomings in actual use: the sprayed water mist is affected by wind. When the wind blows, the water mist scatters, causing inconvenience to passers-by. In order to avoid the water mist, pedestrians scatter. There are still certain safety hazards in areas with heavy traffic. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a dust suppression device for highway construction, and the technical solution adopted is as follows:

[0005] A dust suppression device for highway construction comprises a bottom box, a dust removal cylinder is installed above the bottom box, a suction cylinder is connected to one side of the dust removal cylinder, a collection cylinder is connected to one side of the suction cylinder, and an exhaust cylinder is connected to the other side of the dust removal cylinder, wherein the collection cylinder, the suction cylinder, the dust removal cylinder and the exhaust cylinder are all connected by flanges;

[0006] An exhaust fan blowing toward the dust removal cylinder is arranged inside the suction cylinder, and a spray mechanism is arranged inside the dust removal cylinder. The spray mechanism comprises a primary spray pipe and a secondary spray pipe, which are interconnected and connected to a water pipe.

[0007] Furthermore, strip-shaped spray holes are provided below the primary spray pipe and the secondary spray pipe, and water flows down from the spray holes to form a water curtain.

[0008] Furthermore, a confluence cavity is provided inside the bottom box, and a return pipe is provided outside the bottom box, which can collect water mixed with dust and transport it to the purification device through the return pipe for purification.

[0009] Furthermore, the primary spray pipe and the secondary spray pipe are arranged in sequence, the primary spray pipe is close to the suction cylinder, a wind-blocking mesh plate is provided below the secondary spray pipe, and a water flow trough connected to the confluence chamber is provided below the primary spray pipe and the secondary spray pipe.

[0010] Furthermore, the wind-blocking mesh plate is arranged directly below the spray hole in the secondary spray pipe.

[0011] Furthermore, the collecting tube is in a trumpet shape, with the larger end facing outward, and can absorb external dust to the greatest extent.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides an exhaust fan and a spray pipe to send the airflow with dust from the outside into the dust removal cylinder for filtering, and provides a wind-blocking mesh plate that can reduce the gas flow rate, thereby preventing water mist from overflowing and reducing the impact on surrounding pedestrians.

[0014] The utility model opens a spray hole at the lower end of the spray pipe so that the water flow forms a water curtain, which can fully purify the dust carried in the air flow when the air flow passes through, and the wind-blocking mesh plate is arranged just below the spray hole in the secondary spray pipe. When the wind-blocking mesh plate blocks the air flow and dust, the water curtain formed below the secondary spray pipe can also play a role in cleaning the wind-blocking mesh plate, avoiding clogging of the mesh holes of the wind-blocking mesh plate and improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the dust removal cylinder of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the spray pipe of the utility model;

[0019] Figure 5 This utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0020] In the figure:

[0021] 1- bottom box, 11- confluence chamber, 12- return pipe, 2- dust removal cylinder, 21- primary spray pipe, 22- secondary spray pipe, 23- wind blocking mesh plate, 24- gutter, 25- water pipe, 26- spray hole, 3- exhaust pipe, 4- suction cylinder, 41- exhaust fan, 5- collection cylinder. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0023] As attached Figure 1-5 shown.

[0024] A dust reduction device for highway construction includes a bottom box 1, a dust removal cylinder 2 is installed above the bottom box 1, a suction cylinder 4 is connected to one side of the dust removal cylinder 2, a collection cylinder 5 is connected to one side of the suction cylinder 4, and an exhaust cylinder 3 is connected to the other side of the dust removal cylinder 2, and the collecting cylinder 5, the suction cylinder 4, the dust removal cylinder 2 and the exhaust cylinder 3 are all connected by flanges.

[0025] When working, the device is placed as a whole at the required position, and the placement methods are varied. For example, multiple dust reduction devices are arranged around the inner side of the highway guardrail, and then the collecting cylinder 5 is facing the dust generating area. By turning on the exhaust fan 41 in the suction cylinder 4, the dust will enter the device through the trumpet-shaped collecting cylinder 5 and be transported toward the dust removal cylinder 2 under the action of the exhaust fan 41.

[0026] A spray mechanism is provided inside the dust removal cylinder 2, and the spray mechanism includes a primary spray pipe 21 and a secondary spray pipe 22, which are interconnected and connected to a water pipe 25; strip-shaped spray holes 26 are provided below the primary spray pipe 21 and the secondary spray pipe 22. After the water supply pipe 25 is connected to the external water source, the water valve is opened, and water flows down from the primary spray pipe 21 and the secondary spray pipe 22 below the gutter 24 to form a water curtain. After the gas transported by the exhaust fan 41 passes through the water curtain, the dust in the gas will absorb water molecules and finally flow down with the water curtain and enter the confluence chamber 11 in the bottom box 1. The water flow in the reflux chamber 11 will pass through the reflux pipe 12 arranged on the outside of the bottom box 1 and enter the sewage treatment device, and be recycled again after purification.

[0027] The primary spray pipe 21 and the secondary spray pipe 22 are arranged in sequence, the primary spray pipe 21 is close to the suction cylinder 4, a wind blocking mesh plate 23 is provided below the secondary spray pipe 22, and a water flow trough 24 connected to the confluence chamber 11 is provided below the primary spray pipe 21 and the secondary spray pipe 22.

[0028] The function of the wind-blocking mesh plate 23 is to slow down the flow rate of the gas, avoid excessive gas flow rate, and blow the water curtain into the exhaust pipe 3. The principle is that after setting the wind-blocking mesh plate 23, some airflow will not be able to flow directly through the mesh holes of the wind-blocking mesh plate 23, and some airflow will flow in the reverse direction due to the obstruction of the wind-blocking mesh plate 23. The reverse-flowing airflow collides with the forward airflow, thereby reducing the flow rate of the forward airflow.

[0029] When the airflow delivered by the suction cylinder 4 passes through the dust removal cylinder 2, it can be fully purified and finally discharged from the end of the exhaust cylinder 3.

[0030] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A dust suppression device for highway construction, comprising a bottom box (1), characterized in that: A dust removal cylinder (2) is installed above the bottom box (1); a suction cylinder (4) is connected to one side of the dust removal cylinder (2); a collection cylinder (5) is connected to one side of the suction cylinder (4); and an exhaust cylinder (3) is connected to the other side of the dust removal cylinder (2); the collection cylinder (5), the suction cylinder (4), the dust removal cylinder (2) and the exhaust cylinder (3) are all connected via flanges; An exhaust fan (41) for blowing air in the direction of the dust removal cylinder (2) is provided inside the suction cylinder (4), and a spray mechanism is provided inside the dust removal cylinder (2), the spray mechanism comprising a primary spray pipe (21) and a secondary spray pipe (22), the two being interconnected and connected to a water pipe (25).

2. A dust suppression device for highway construction as claimed in claim 1, characterized in that: Strip-shaped spray holes (26) are provided below the primary spray pipe (21) and the secondary spray pipe (22).

3. A dust suppression device for highway construction as claimed in claim 1, characterized in that: A confluence chamber (11) is provided inside the bottom box (1), and a return pipe (12) is provided outside the bottom box (1).

4. A dust suppression device for highway construction as claimed in claim 3, characterized in that: The primary spray pipe (21) and the secondary spray pipe (22) are arranged in sequence, the primary spray pipe (21) is close to the suction cylinder (4), a wind blocking mesh plate (23) is provided below the secondary spray pipe (22), and a water flow trough (24) connected to the confluence chamber (11) is provided below the primary spray pipe (21) and the secondary spray pipe (22).

5. A dust suppression device for highway construction as claimed in claim 4, characterized in that: The wind blocking mesh plate (23) is arranged directly below the spray hole (26) in the secondary spray pipe (22).

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