Dust prevention and falling device for building construction

Abstract

The utility model relates to the technical field of dust removal, in particular to a dust prevention and fall device for building construction, which comprises a dust removal tank, an exhaust pipe and a suction pipe communicated with the upper end and the lower end of the dust removal tank, a suction pump communicated with the suction pipe, a stand column arranged at the inner axis of a bottom cover, a flow dividing cover arranged at the upper end of the stand column and a flow gathering cover suspended at the upper end of the flow dividing cover. The side wall of the lower end of the dust removal tank is communicated with a water pipe through a water pump, the water pipe is inserted into the upper end of the dust removal tank, and a plurality of atomizing nozzles are arranged at the position of the water pipe. The air pump is communicated with the upper end of the dust removal tank, water mist is sprayed from the atomization spray head through the water pump for dust removal, and the dust removal device is suitable for purification treatment of low-concentration flying dust; the air pump is communicated with the lower end of the dust removal tank, air is immersed in dust removal liquid, the dust removal effect is greatly improved, the air and the dust removal liquid are fully mixed through the flow dividing cover and the flow gathering cover, and the cleaning effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, and in particular to a dust prevention and reduction device for building construction. Background Technology

[0002] Many processes on construction sites generate dust, such as mixing mud and sand, bricklaying, and plastering. If workers inhale this dust, they are easily infected with lung diseases. Therefore, dust removal equipment is installed on construction sites to suppress or remove dust during construction.

[0003] Currently, most dust removal equipment uses water spraying, such as water mist nozzles and fog cannons, to remove dust particles from the air by spraying water mist onto the ground. However, water spraying inevitably creates water stains, especially with prolonged spraying, which can lead to puddles. This not only makes the construction site muddy and slippery, posing safety risks, but also means that once the water dries, the dust particles may be carried away by the wind again.

[0004] To address this issue, patent document CN212166898U discloses a dust suppression and ash removal device for construction. This device features a dust collection chamber inside its outer casing, with nozzles installed within the chamber. Air is drawn into the dust collection chamber, and water mist is sprayed through the nozzles. The water mist adheres to the flying dust, thus purifying the air. There is no need to spray water onto the outside environment.

[0005] However, this patent has a problem in its application: while water mist spraying can filter low-concentration dust, for high-concentration dust, some dust will still remain inside the dust removal chamber after the gas passes through. It is ineffective at removing high-concentration dust.

[0006] Therefore, this utility model provides a dust control device for construction sites, which solves the problem of not being able to adjust and change dust removal measures according to different concentrations of flying dust. Utility Model Content

[0007] The purpose of this utility model is to solve the problems existing in the prior art by proposing a dust prevention and reduction device for building construction.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A dust suppression device for construction includes a trolley with a dust collection tank. The upper and lower side walls of the dust collection tank are connected to an exhaust pipe and an extraction pipe, respectively. The extraction pipe is connected to an extraction pump. The upper and lower ends of the dust collection tank are detachably fitted with a cap and a bottom cover, respectively. The dust collection tank stores dust removal liquid. A column is mounted on the inner axis of the bottom cover, and a conical flow divider is mounted on the upper end of the column. An inverted conical flow convergence hood is suspended above the flow divider. A three-way valve is installed between the extraction pipe and the extraction pump. The other port of the three-way valve is inserted into the dust collection tank through the upper side wall. A water pipe is connected to the lower side wall of the dust collection tank via a water pump. The water pipe is inserted into the upper part of the dust collection tank, and multiple atomizing nozzles are installed at this location.

[0010] Preferably, a stirring fan is rotatably mounted on the column, and the stirring fan corresponds to the connection part of the exhaust pipe and the dust collector.

[0011] Preferably, the bottom sidewall of the exhaust pipe is connected to a drain pipe, and the bottom end of the drain pipe is connected to the lower sidewall of the dust collector.

[0012] Preferably, a mesh cover is fitted over the air intake of the air pump.

[0013] Preferably, the bottom cover is provided with a drain pipe, and an end cap is screwed onto the drain pipe.

[0014] Preferably, the trolley is symmetrically provided with two support frames, and the upper ends of the two support frames are connected to an installation cylinder, in which the dust removal canister is embedded.

[0015] Preferably, the support frame and mounting cylinder make the distance between the bottom cover and the trolley surface greater than the height of the outer edge of the bottom cover.

[0016] Preferably, the connecting parts of the three-way valve, the exhaust pipe, and the dust collector are arranged alternately.

[0017] Compared with the prior art, this utility model provides a dust control device for construction, which has the following beneficial effects:

[0018] When the dust density is low, the three-way valve is connected to the top of the dust collection tank, and the water pump draws the dust collection liquid into the water pipe and sprays it out from the atomizing nozzle to form water mist and purify the air.

[0019] When the dust density is high, the three-way valve is connected to the exhaust pipe. Air is poured in from the bottom of the dust collector and floats up. Using the immersion method, the dust comes into contact with the dust collection liquid and remains in the dust collection liquid, thus completing the air purification. After the air floats up, it passes through the diverter and the concentrator, which causes the gas to gather and disperse multiple times in the dust collector. This ensures that the gas and the dust collection liquid are fully mixed, preventing the gas from being aerated and forming bubbles that float up after being poured into the dust collection liquid, thus improving the purification effect.

[0020] This solution controls the connection between the air pump and the upper and lower ends of the dust collection tank via a three-way valve: the air pump is connected to the upper end of the dust collection tank, and water mist is sprayed from the atomizing nozzles by a water pump for dust removal, which is suitable for the purification of low-concentration flying dust; the air pump is connected to the lower end of the dust collection tank, and the gas is immersed in the dust removal liquid, which greatly improves the dust removal effect. Furthermore, the use of a flow divider and a flow convergence hood ensures that the gas and the dust removal liquid are fully mixed, further improving the cleaning effect.

[0021] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0022] Figure 1 This is a side-axis perspective view of the extraction pipe of this utility model.

[0023] Figure 2 This is a three-dimensional side-axis view of the exhaust pipe of this utility model.

[0024] Figure 3 This is a cross-sectional view of the present invention.

[0025] In the diagram: 1. Trolley; 2. Dust collector; 3. Exhaust pipe; 4. Extraction pipe; 5. Three-way valve; 6. Cover; 7. Bottom cover; 8. Column; 9. Diverter hood; 10. Concentrator hood; 11. Agitator fan; 12. Drain pipe; 13. Mesh cover; 14. Water pipe; 15. Support frame; 16. Mounting cylinder. Detailed Implementation

[0026] The following will refer to the appendix in the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0027] To address the problems existing in the prior art, this embodiment provides a dust suppression device for construction, including a trolley 1 with a dust collection tank 2 mounted on it. The upper and lower side walls of the dust collection tank 2 are respectively connected to an exhaust pipe 3 and an extraction pipe 4. The extraction pipe 4 is connected to an extraction pump. The dust collection tank 2 is characterized by having a detachable cover 6 and a bottom cover 7 at its upper and lower ends, respectively. The dust collection tank 2 stores dust removal liquid. A column 8 is fixed to the center of the bottom cover 7 by fasteners. A conical flow divider 9 is mounted on the upper end of the column 8, and an inverted conical flow convergence hood 10 is suspended above the flow divider 9. A three-way valve 5 is provided between the extraction pipe 4 and the extraction pump. The other port of the three-way valve 5 is inserted into the dust collection tank 2 from the upper side wall. A water pipe 14 is connected to the lower side wall of the dust collection tank 2 via a water pump. The water pipe 14 is inserted into the upper part of the dust collection tank 2, and this part is equipped with multiple atomizing nozzles.

[0028] Principle details of this embodiment:

[0029] A dust suppression device for construction includes a trolley 1 with a dust collection tank 2 mounted on it. The dust collection tank 2 has openings at both the top and bottom. A screw-on cap 6 is screwed onto the top opening of the dust collection tank 2, and a screw-on bottom cap 7 is screwed onto the bottom opening. A column 8 is axially mounted on the inner bottom wall of the bottom cap 7. A conical flow divider 9 is mounted on the upper end of the column 8. Multiple support rods are mounted on the upper surface of the flow divider 9, and an inverted conical flow convergence hood 10 is fixed to the upper ends of the multiple support rods. An extraction pipe 4 is connected to the lower side wall of the dust collection tank 2 below the flow divider 9, and a T-junction is connected to the upper end of the extraction pipe 4. Valve 5, the upper end of the three-way valve 5 is connected to an air pump, and the side end of the valve is connected to the upper side wall of the dust collector 2. The lower side wall of the dust collector 2 is connected to a water pipe 14 via a water pump. The water pipe 14 is inserted into the upper end of the dust collector 2 and multiple atomizing nozzles are provided at this part. The upper side of the dust collector 2, located above the flow hood 10, is connected to an exhaust pipe 3. The air extraction pipe 4 and the exhaust pipe 3 are symmetrically arranged. The dust collector 2 is filled with dust removal liquid, which can be clean water or clean water mixed with bactericidal alcohol. The liquid level of the dust removal liquid is located between the flow hood 10 and the exhaust pipe 3.

[0030] When the dust density in the construction area is low, the air pump connects to the upper end of the dust collection tank 2 via the three-way valve 5, drawing outside air into the upper end of the dust collection tank 2. Meanwhile, the water pump draws the dust removal liquid in the dust collection tank 2 into the water pipe 14 and sprays it out from the atomizing nozzle to form water mist and purify the air.

[0031] When the dust density in the construction area is high, the air pump is connected to the air extraction pipe 4 via the three-way valve 5. The air pump draws outside air into the dust collection tank 2. The gas is poured into the dust collection liquid from the bottom of the dust collection tank 2. The dust comes into contact with the dust collection liquid and remains in the dust collection liquid. The gas rises continuously and is then discharged to the outside through the exhaust pipe 3. The air purification is completed by the immersion method. After the gas is poured into the dust collection tank 2, it rises and falls into the diversion hood 9. The gas flows along the inner wall of the diversion hood 9 and then continues to rise from the outer edge of the diversion hood 9. The rising gas falls into the concentrating hood 10 and flows along the inner wall of the concentrating hood 10. Through the combined action of the diversion hood 9 and the concentrating hood 10, the gas is gathered and dispersed multiple times in the dust collection tank 2, so that the gas and the dust collection liquid are fully mixed. This avoids the formation of bubbles after the gas is poured into the dust collection liquid and rises, so that the gas in the bubbles is not purified, thus improving the purification effect.

[0032] Remove the bottom cover 7 to drain the dirty dust removal liquid. At the same time, removing the bottom cover 7 also allows you to take out the flow divider hood 9 and the flow collector hood 10 to clean the internal components. After cleaning, reassemble and remove the cover 6 to refill the dust removal liquid.

[0033] In this embodiment, the air pump is connected to the upper and lower ends of the dust collection tank 2 via a three-way valve 5. The air pump is connected to the upper end of the dust collection tank 2, and water mist is sprayed from the atomizing nozzle by a water pump for dust removal. This is suitable for the purification of low-concentration flying dust. The air pump is connected to the lower end of the dust collection tank 2, and the gas is immersed in the dust removal liquid, which greatly improves the dust removal effect. Furthermore, the flow divider hood 9 and the flow convergence hood 10 are used to ensure that the gas and the dust removal liquid are fully mixed, further improving the cleaning effect.

[0034] In a further embodiment of this solution, a stirring fan 11 is rotatably installed on the column 8. The stirring fan 11 corresponds to the connection part between the exhaust pipe 4 and the dust collection tank 2. When gas is injected into the dust collection tank 2, it impacts the stirring fan 11. The stirring fan 11 rotates and agitates the dust collection liquid, further promoting the full mixing and contact of air and dust collection liquid, and improving the purification effect.

[0035] In a further embodiment of this solution, a drain pipe 12 is connected to the bottom side wall of the exhaust pipe 3, and the bottom end of the drain pipe 12 is connected to the lower side wall of the dust collector 2, as shown in the attached figure. Figure 3 As shown, since the air passes through water mist or is immersed in water, it inevitably carries away moisture. When it is sprayed out from the outlet of the exhaust pipe 3, it will inevitably impact and condense into water droplets. The water droplets return to the dust collector 2 along the guide pipe 12, preventing the water droplets from flowing back from the exhaust pipe 3 and being impacted by the air to the outside, thus preventing water stains. Preferably, a constricting water-collecting ring is provided in the exhaust pipe 3 on the side facing the dust collector 2 at the connection between the guide pipe 12 and the exhaust pipe 3, so that the air in the exhaust pipe 3 gathers towards the axis, further preventing the air from blowing away the condensed water.

[0036] In a further embodiment of this solution, a mesh cover 13 is fitted over the air intake of the air pump to prevent large debris from being drawn in.

[0037] In a further embodiment of this solution, the bottom cover 7 is provided with a drain pipe, and an end cap is screwed onto the drain pipe to cooperate with the sealing cover 6 for replacing the dust removal liquid in the dust removal tank 2.

[0038] In a further embodiment of this solution, the trolley 1 is symmetrically provided with two support frames 15, and the upper ends of the two support frames 15 are connected to a mounting cylinder 16. The dust removal canister 2 is embedded in the mounting cylinder 16, so that the bottom end of the dust removal canister 2 is suspended, which facilitates the removal of the bottom cover 7. The support frames 15 and the mounting cylinder 16 make the distance between the bottom cover 7 and the surface of the trolley 1 greater than the height of the outer edge of the bottom cover 7. This avoids interference with the removal of the bottom cover 7.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A dust suppression device for construction, comprising a trolley (1), a dust collection tank (2) mounted on the trolley (1), an exhaust pipe (3) and an extraction pipe (4) respectively connected to the upper and lower side walls of the dust collection tank (2), and an extraction pump connected to the extraction pipe (4), characterized in that, The dust collector (2) is detachably fitted with a cap (6) and a bottom cover (7) at its upper and lower ends respectively. The dust collector (2) contains dust removal liquid. A column (8) is provided in the center of the bottom cover (7). A conical diverter (9) is provided at the upper end of the column (8). An inverted conical concentrator (10) is suspended at the upper end of the diverter (9). A three-way valve (5) is provided between the air extraction pipe (4) and the air extraction pump. The other port of the three-way valve (5) is inserted into the dust collector (2) from the upper side wall of the dust collector (2). A water pipe (14) is connected to the lower side wall of the dust collector (2) via a water pump. The water pipe (14) is inserted into the upper end of the dust collector (2) and multiple atomizing nozzles are provided on the water pipe (14).

2. The dust suppression device for construction sites according to claim 1, characterized in that, A stirring fan (11) is rotatably mounted on the column (8), and the stirring fan (11) corresponds to the connection part of the exhaust pipe (4) and the dust collector (2).

3. The dust suppression device for construction sites according to claim 1, characterized in that, The bottom side wall of the exhaust pipe (3) is connected to a drain pipe (12), and the bottom end of the drain pipe (12) is connected to the lower side wall of the dust collector (2).

4. The dust suppression device for construction sites according to claim 1, characterized in that, A mesh cover (13) is fitted over the air intake of the air pump.

5. The dust suppression device for construction sites according to claim 1, characterized in that, The bottom cover (7) is provided with a drain pipe, and an end cap is screwed onto the drain pipe.

6. The dust suppression device for construction sites according to claim 1, characterized in that, The trolley (1) is symmetrically provided with two support frames (15), and the upper ends of the two support frames (15) are connected to an installation cylinder (16), and the dust removal tank (2) is embedded in the installation cylinder (16).

7. The dust suppression device for construction sites according to claim 6, characterized in that, The support frame (15) and the mounting cylinder (16) make the distance between the bottom cover (7) and the surface of the trolley (1) greater than the height of the outer edge of the bottom cover (7).

8. The dust suppression device for construction sites according to claim 1, characterized in that, The connecting parts of the three-way valve (5), the exhaust pipe (3), and the dust collector (2) are arranged alternately.

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