Dedusting and spraying device for constructional engineering

Abstract

The invention relates to the technical field of dust removal, and provides a dust removal spraying device for constructional engineering, which comprises an atomization spray head, a dust collection box, a vacuum pump, a receiving disc and a dust suction hood, the atomization spray head is communicated with external water supply equipment through a water inlet pipe, and an air suction port of the vacuum pump is communicated with the top of the dust collection box; an air outlet of the vacuum pump is communicated with the atomizing nozzle through an air supply pipe to pressurize water mist, the receiving disc is located below the atomizing nozzle, is close to the ground and is used for receiving part of water mist sprayed by the atomizing nozzle and carried dust, the receiving disc is communicated with the dust collection box, and the dust collection cover is arranged on the receiving disc and is used for absorbing settled dust and water mist. And the dust hood is communicated with the dust collection box. By means of the technical scheme, the technical problems that in the prior art, water mist generated by spraying drips on the ground, so that water resources are lost, and the risk that settled dust is raised after water is evaporated to dryness exists are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of dust removal, in particular, to a dust removal and spraying device for construction engineering. BACKGROUND

[0002] In the process of construction engineering, a large amount of dust is generated by earth excavation, material handling, vehicle driving, concrete mixing and other operations, causing serious air pollution, endangering the health of construction personnel and surrounding residents, and easily causing safety accidents. At present, the construction site usually uses the spraying method for dust removal. The commonly used dust removal and spraying technology mainly includes a fixed pipe network spraying system and a rotary fog cannon machine. The current spraying technology is to spray water mist, so that the water mist attracts the dust in the air and falls to the ground during the settling process.

[0003] The water mist sprayed on the ground gathers into a water flow containing soil. Long-time spraying causes the ground to be wet and slippery, which hinders daily production such as the walking of workers, the driving of vehicles, and the handling of materials. Moreover, the water mist droplets are difficult to recover after falling on the ground. Long-time spraying work causes the loss of water resources, and after the water on the ground evaporates, the dust adsorbed by the water also becomes dust and has the risk of being raised. Additional cleaning is also needed. SUMMARY

[0004] To overcome the above-mentioned defects, the present application provides a dust removal and spraying device for construction engineering, which solves the technical problem that the water mist generated by spraying falls on the ground, causing the loss of water resources, and the settled dust has the risk of being raised after the water evaporates.

[0005] According to one aspect, at least one embodiment of the present application provides a dust removal and spraying device for construction engineering, comprising an atomizing nozzle, the atomizing nozzle being communicated with an external water supply device through a water inlet pipe, and further comprising: a dust collection box; a vacuum pump, the suction port of the vacuum pump being communicated with the top of the dust collection box, and the exhaust port of the vacuum pump being communicated with the atomizing nozzle through a gas supply pipe to pressurize the water mist; a receiving disc, the receiving disc being located below the atomizing nozzle and close to the ground, for receiving part of the water mist and the dust carried by the atomizing nozzle, the receiving disc being communicated with the dust collection box; a dust suction hood, the dust suction hood being arranged on the receiving disc for absorbing the settled dust and water mist, the dust suction hood being communicated with the dust collection box.

[0006] To improve the collection effect of dust and water mist, the receiving disc is rotatable, the dust suction hood is arranged at the edge of the receiving disc, and the dust suction port of the dust suction hood faces the outside of the receiving disc.

[0007] For utilizing the water in the dust collecting box, a filtering device is further included, the water in the dust collecting box is filtered by the filtering device and then is transported to the atomizing nozzle for reuse, and the filtering device comprises: a filtering box in communication with the bottom of the dust collecting box; a filter screen arranged in the filtering box for filtering the water in the dust collecting box; a reuse pipe in communication with an external water supply device for conveying the filtered water to the atomizing nozzle.

[0008] For improving the water absorption effect on the ground, a water absorption component is further included for absorbing and recycling the sewage on the ground, and the water absorption component comprises: a sponge arranged below the receiving disc and in contact with the ground; a squeezing assembly for squeezing the water in the sponge to be collected in the dust collecting box, and the squeezing assembly comprises: a fixing plate fixedly arranged on the receiving disc; a mounting groove arranged below the fixing plate by a compression spring, and the sponge is located in the mounting groove; a squeezing plate fixedly arranged below the receiving disc and in contact with the ground, the squeezing plate is in communication with the top of the dust collecting box through a water absorption pipe, and a plurality of water absorption holes are formed in the squeezing plate for absorbing the water in the sponge, and the squeezing plate and the mounting groove cooperate to squeeze the sponge when the sponge rotates above the squeezing plate.

[0009] For ensuring the water absorption performance of the sponge, the sponge is detachably arranged in the mounting groove.

[0010] For realizing the detachable arrangement of the sponge, a plug rod is fixedly connected in the mounting groove, the sponge is a cylindrical structure and the plug rod can be inserted into the sponge, and a cover is threadedly connected to the end of the plug rod for limiting the sponge.

[0011] For enabling the water in the receiving disc to enter the dust collecting box, a water collecting groove is in communication with the bottom of the receiving disc, the bottom of the water collecting groove is in communication with the top of the dust collecting box, and the receiving disc is in the shape of a bucket.

[0012] For avoiding large impurities from entering the dust collecting box, a protective screen is arranged at the dust suction port of the dust cover and at the opening of the receiving disc.

[0013] The embodiment of the application has the following beneficial effects: 1. In the present application, the atomizing nozzle sprays water mist to make the dust in a certain range settle down, the water mist carrying dust in a certain range of the atomizing nozzle is received by the receiving tray, the received sewage falls into the inside of the water collecting tank and is sucked into the inside of the dust collecting box under the action of pressure difference, the dust close to the ground outside the receiving tray and the falling water mist are absorbed by the dust suction cover, the absorbed water mist and dust enter the inside of the dust collecting box for collection, the water in the dust collecting box is sucked out by the external water supply device for repeated use, the filter screen blocks the dust in the water when the water in the dust collecting box is recovered, so that the water returned to the atomizing nozzle remains clean, part of the water mist can be collected and filtered by the receiving tray, the dust suction cover and the external water supply device, and then reused, which reduces the loss of water resources and the dust falling on the ground, that is, reduces the dust raised again after the evaporation of water on the ground.

[0014] 2. In the present application, the dust suction cover can be driven to rotate by the receiving tray, and the water mist and dust in a certain range outside the receiving tray below the atomizing nozzle are absorbed, and at the same time, the receiving tray can drive the sponge to rotate, and the water on the ground in a certain range outside the receiving tray is scraped, the water is absorbed by the sponge while the soil is adhered to the surface of the sponge, when the sponge rotates one round and contacts the pressing plate, the sponge is pressed under the action of the compression spring and the thickness of the pressing plate, the sewage generated by the pressing is sucked into the inside of the dust collecting box for recycling, which further reduces the loss of water resources and the secondary raising of ground dust, and the sponge can be replaced and cleaned regularly to ensure the water absorption performance of the sponge.

[0015] 3. In the present application, the inside of the dust collecting box is vacuumized by the vacuum pump, the received or scraped water mist and sewage are sucked into the inside of the dust collecting box under the action of negative pressure to collect dust and recycle water, at the same time, the vacuum pump sends gas to the atomizing nozzle to pressurize the inside of the atomizing nozzle to shear the liquid into small droplets, thereby forming atomization effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present application. Other drawings can be obtained according to the contents of the example embodiments of the present application and the drawings by those skilled in the art without creating labor.

[0017] Figure 1 the structure schematic view of the first perspective of the whole in an embodiment of the present application; Figure 2 the structure schematic view of the second perspective of the whole in an embodiment of the present application; Figure 1 Figure 3 the structure schematic view of the second perspective of the whole in an embodiment of the present application;​Figure 1 Fig. 3 is a structural schematic diagram of the third perspective view of the embodiment of Fig. 1 in its entirety; Figure 4 Fig. 4 is a structural schematic diagram of the embodiment of Fig. 1 in partial cross-section; Figure 1 Fig. 5 is a structural schematic diagram of the embodiment of Fig. 1 in partial cross-section; Figure 5 Fig. 6 is a structural schematic diagram of the water collecting tank, dust cover, motor and water suction part of the embodiment of Fig. 1 in its entirety; Figure 1 Fig. 7 is an enlarged structural schematic diagram of part A in Fig. 6. Figure 6 Figure 3 Fig. 8 is a structural schematic diagram of the embodiment of Fig. 1 in its entirety.

[0018] In the drawings: 1, atomizing nozzle; 2, dust collecting tank; 3, vacuum pump; 4, air supply pipe; 5, receiving disc; 6, water collecting tank; 7, dust cover; 8, motor; 9, driving gear; 10, driven gear ring; 11, blocking ring; 12, protective net; 13, dust suction seat; 101, filter box; 102, filter screen; 103, reuse pipe; 201, sponge; 202, fixing plate; 203, mounting groove; 204, water squeezing plate; 205, insertion rod; 206, blocking cover. DETAILED DESCRIPTION The present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application, but not to limit the present application.

[0019] In order to make the drawings simple, only the parts related to the present application are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this text, “one” not only means “only one”, but also means “more than one”, and “several” includes “two” and “more than two”.

[0020] In this text, it should be noted that, unless otherwise specified and limited, the terms “mounting”, “connection” and “connecting” should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] ​In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0022] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] As shown in Figures 1 to 6 , it shows a dust removal and spraying device for construction engineering in an embodiment of the present application, which comprises an atomizing nozzle 1, the atomizing nozzle 1 is communicated with an external water supply device through a water inlet pipe, the external water supply device can be selected as a water pump, water is pumped to the inside of the atomizing nozzle 1 through the water pump, the water is atomized and sprayed out through the atomizing nozzle 1, the dust in the air is adsorbed by the water mist, the dust increases in weight after meeting water and falls with the water mist to realize dust removal and spraying, and it further comprises a dust collecting box 2, a vacuum pump 3, a receiving disc 5 and a dust suction hood 7.

[0025] As shown in Figures 1 to 4 , the air inlet of the vacuum pump 3 and the top of the dust collecting box 2 are communicated, the air outlet of the vacuum pump 3 is communicated with the atomizing nozzle 1 through a gas supply pipe 4 to pressurize the water mist, the inside of the atomizing nozzle 1 is pressurized by the gas sent by the vacuum pump 3 to extrude and spray the liquid in the inside of the atomizing nozzle 1, forming the water mist, the inside of the dust collecting box 2 is vacuumed by the vacuum pump 3 to be in a negative pressure state, facilitating the water mist and dust outside to be sucked into the inside of the dust collecting box 2 for collection, a dust screen is arranged at the communication position of the vacuum pump 3 and the dust collecting box 2 to avoid the dust entering the inside of the vacuum pump 3, and the inside of the dust collecting box 2 has water to adsorb the dust, which can avoid the dust from being raised to the vacuum pump 3.

[0026] As shown in Figures 1 to 5As shown, the receiving tray 5 is located below the atomizing nozzle 1 and close to the ground. It is used to receive some of the water mist and dust sprayed from the atomizing nozzle 1. The receiving tray 5 is connected to the dust collection box 2. In order to allow the water in the receiving tray 5 to enter the interior of the dust collection box 2, a water collection trough 6 is connected to the bottom of the receiving tray 5. The bottom of the water collection trough 6 is connected to the top of the dust collection box 2. The receiving tray 5 is funnel-shaped. The receiving tray 5 receives the water mist and dust sprayed from the atomizing nozzle 1 within a certain range. The funnel-shaped receiving tray 5 causes the water to accumulate inside the water collection trough 6. Under the suction of the vacuum pump 3, the wastewater in the water collection trough 6 is pumped into the interior of the dust collection box 2 for recycling.

[0027] like Figures 1 to 6 As shown, the dust hood 7 is mounted on the receiving tray 5 to absorb settled dust and water mist. The dust hood 7 is connected to the dust collection box 2. To improve the collection effect of dust and water mist, the receiving tray 5 is rotatably mounted on the top of the water collection tank 6. A motor 8 is installed on the water collection tank 6, and a drive gear 9 is fixedly connected to the output end of the motor 8. A driven gear ring 10 is coaxially fixedly connected to the receiving tray 5. The driven gear and the drive gear 9 mesh. The dust hood 7 is located at the edge of the receiving tray 5, and the suction port of the dust hood 7 faces the outside of the receiving tray 5. The negative pressure environment of the dust collection box 2 causes the dust hood 7 to generate suction, which is then used to collect the dust and water mist. The dust hood 7 draws water mist and dust from a certain range outside the receiving tray 5 into the dust collection box 2. The motor 8 drives the drive gear 9 to rotate, thereby rotating the receiving tray 5 and the dust hood 7, expanding the suction range of the dust hood 7. A retaining ring 11 is installed at the top edge of the receiving tray 5 to prevent water from being thrown out by the centrifugal force generated by the receiving tray 5. The rotation speed of the receiving tray 5 is relatively slow, and the centrifugal force generated is small. The dust hood 7 is connected to the dust collection seat 13 through the rotating suction pipe. The dust collection seat 13 is connected to the dust collection box 2. The rotation of the dust collection seat 13 and the suction pipe can be coordinated with the rotation of the dust hood 7.

[0028] like Figures 1 to 4As shown, to utilize the water in the dust collection box 2, a filtration device is also included. The water in the dust collection box 2 is filtered by the filtration device and then transported to the atomizing nozzle 1 for reuse. The filtration device includes a filter box 101, a filter screen 102, and a return pipe 103. The filter box 101 is connected to the bottom of the dust collection box 2. The filter screen 102 is located inside the filter box 101 and is used to filter the water in the dust collection box 2. The filter box 101 is connected to an external water supply device through the return pipe 103, which is used to send the filtered water to the atomizing nozzle 1. The water supply equipment, i.e., the water pump, can draw water from the dust collection box 2 into the filter box 101. The filter screen 102 has multiple layers. The water is filtered through the filter screen 102, and the clean water is sent into the atomizing nozzle 1 for recycling, reducing the loss of water resources. The filter box 101 is provided with a cleaning port, and a valve is installed on the return pipe 103. The valve is closed periodically to stop the water from entering the filter box 101, and the cleaning port is opened to clean the sludge in the filter box 101, so as to avoid the sludge from clogging the filter screen 102 during the long-term filtration process.

[0029] like Figures 1 to 5As shown, to improve the absorption effect of water on the ground, a water-absorbing component is also included. The water-absorbing component is used to absorb and recycle wastewater on the ground. The water-absorbing component includes a sponge 201 and a squeezing assembly. The sponge 201 is located below the receiving plate 5 and is in contact with the ground. The squeezing assembly is used to squeeze the water out of the sponge 201 to collect it into the dust collection box 2. The squeezing assembly includes a fixing plate 202, a mounting groove 203, and a squeezing plate 204. The fixing plate 202 is fixedly mounted on the receiving plate 5. The mounting groove 203 is located below the fixing plate 202 by a compression spring. The sponge 201 is detachably mounted in the mounting groove 204. Inside the mounting slot 203, a rod 205 is fixedly connected. The sponge 201 has a cylindrical structure that allows the rod 205 to be inserted. The end of the rod 205 is threaded with a stop cover 206 for limiting the position of the sponge 201. The dewatering plate 204 is fixedly installed below the receiving plate 5 and in contact with the ground. The dewatering plate 204 is connected to the top of the dust collection box 2 through a suction pipe. The water collection trough 6 is connected to the dewatering plate 204. Water is sucked into the dewatering plate 204 and the water collection trough 6 through the suction pipe, drawing water into the dust collection box 2. The dewatering plate 204 has multiple suction holes for absorbing water from the sponge 201. When the sponge 201... When rotated above the dewatering plate 204, the dewatering plate 204 and the mounting groove 203 work together to squeeze the sponge 201. Under the action of the compression spring, the mounting groove 203 causes the sponge 201 to be pressed firmly onto the ground. As the receiving plate 5 rotates, the sponge 201 rotates, absorbing the water on the ground and simultaneously scraping away the mud. The mounting groove 203 and the insert rod 205 are made of elastic materials, such as rubber or spring steel. The sponge 201 is also elastic, allowing it to bend when encountering obstacles and spring back to its original straight state after passing through the obstacles. As the sponge 201 rotates with the receiving plate 5... It can rotate, allowing different positions of the sponge 201 to contact the ground for water absorption, ensuring the water absorption and cleaning performance of the sponge 201. The dust collection box 2 generates suction at the squeezing plate 204 through the suction pipe. When the sponge 201 rotates to the squeezing plate 204, it rolls above the squeezing plate 204. The squeezing plate 204 has a certain thickness, so under the combined action of the compression spring and the squeezing plate 204, the water in the sponge 201 is squeezed out and sucked into the dust collection box 2 through the suction hole and suction pipe. At the same time, the squeezing hole can absorb water mist and dust within a certain range when the sponge 201 has not rotated to the squeezing plate 204.

[0030] like Figures 1 to 5 As shown, in order to prevent large impurities from entering the dust collection box 2, protective nets 12 are installed at the dust suction port of the dust suction hood 7 and the opening of the receiving plate 5. Water mist and dust can be sucked in through the protective nets, while large impurities such as soil, paper, plastic bags, etc. are blocked outside to avoid clogging the pipes inside the device.

[0031] The working principle or usage process of the dust suppression spray device used in this construction project is as follows: Install the atomizing nozzle 1 in a suitable location outside the construction site enclosure or work area. Connect the atomizing nozzle 1 to the external water supply equipment. The external water supply equipment supplies water to the atomizing nozzle 1 and sprays water mist. The water mist adsorbs dust in the air and causes it to settle. The receiving tray 5 receives water mist and dust within a certain range of the atomizing nozzle 1. Wastewater slides down the bucket-shaped receiving tray 5 into the interior of the water collection tank 6. The vacuum pump 3 draws air from the dust collection box 2 to create a negative pressure environment inside the dust collection box 2 and sends air to the atomizing nozzle 1 to assist in the atomization of the atomizing nozzle 1. At the same time, water in the water collection tank 6 is drawn into the interior of the dust collection box 2. Water mist and dust within a certain range outside the receiving tray 5 are drawn into the interior of the dust collection box 2 through the dust suction hood 7. Motor 8 drives the receiving plate 5, dust hood 7 and sponge 201 to rotate. Under the action of the compression spring, sponge 201 is in close contact with the ground to absorb water on the ground. As sponge 201 rotates to the water squeezing plate 204, the water squeezing plate 204 and the compression spring work together to squeeze the water out of sponge 201 and suck it into the dust collection box 2. The cover 206 is removed periodically to replace and clean sponge 201. Regularly open the valve on the return water pipe to allow the external water supply equipment to draw water from the dust collection box 2 into the filter box 101. The wastewater is filtered through the filter screen 102, and the clean water is delivered to the atomizing nozzle 1 for recycling. Regularly open the cleaning port to clean out the dirt in the filter box 101 for centralized treatment to avoid clogging of the filter screen 102.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A dust suppression spray device for construction engineering, comprising an atomizing nozzle (1), wherein the atomizing nozzle (1) is connected to an external water supply device via a water inlet pipe, characterized in that, Also includes: Dust collection box (2); Vacuum pump (3), the air inlet of the vacuum pump (3) is connected to the top of the dust collection box (2), and the air outlet of the vacuum pump (3) is connected to the atomizing nozzle (1) through the air supply pipe (4) to pressurize the water mist; The receiving plate (5) is located below the atomizing nozzle (1) and close to the ground. It is used to receive part of the water mist and dust sprayed out by the atomizing nozzle (1). The receiving plate (5) is connected to the dust collection box (2). A dust hood (7) is installed on the receiving plate (5) to absorb settled dust and water mist. The dust hood (7) is connected to the dust collection box (2).

2. The dust removal spray device for construction engineering according to claim 1, characterized in that, The receiving plate (5) is rotatable, the dust hood (7) is located at the edge of the receiving plate (5), and the dust suction port of the dust hood (7) faces the outside of the receiving plate (5).

3. The dust removal spray device for construction engineering according to claim 1, characterized in that, It also includes a filtration device, through which the water in the dust collection box (2) is filtered and then transported to the atomizing nozzle (1) for reuse.

4. A dust removal spray device for construction engineering according to claim 3, characterized in that, The filtration device includes: The bottom of the filter box (101) is connected to the bottom of the dust collection box (2); A filter screen (102) is disposed inside the filter box (101) for filtering the water in the dust collection box (2); The filter box (101) is connected to an external water supply device through the reuse pipe (103) to deliver the filtered water to the atomizing nozzle (1).

5. A dust suppression spraying device for construction engineering according to claim 1, characterized in that, It also includes a water-absorbing component, which is used to absorb and recycle wastewater on the ground.

6. A dust suppression spraying device for construction engineering according to claim 5, characterized in that, The water-absorbing component includes: Sponge (201), the sponge (201) is disposed below the receiving plate (5), and the sponge (201) is in contact with the ground; A squeezing assembly for squeezing water out of the sponge (201) to collect it into the interior of the dust collection box (2).

7. A dust suppression spraying device for construction engineering according to claim 6, characterized in that, The extrusion assembly includes: A fixing plate (202) is fixedly mounted on the receiving plate (5); The mounting groove (203) is located below the fixing plate (202) by means of a compression spring, and the sponge (201) is located inside the mounting groove (203); The dewatering plate (204) is fixedly installed below the receiving plate (5) and in contact with the ground. The dewatering plate (204) is connected to the top of the dust collection box (2) through a water suction pipe. The dewatering plate (204) has multiple water suction holes for absorbing water from the sponge (201). When the sponge (201) rotates to the top of the dewatering plate (204), the dewatering plate (204) and the mounting groove (203) cooperate to squeeze the sponge (201).

8. A dust suppression spraying device for construction engineering according to claim 7, characterized in that, The sponge (201) is detachably disposed inside the mounting groove (203).

9. A dust suppression spraying device for construction engineering according to claim 1, characterized in that, The receiving plate (5) is connected to a water collection tank (6) below it. The bottom of the water collection tank (6) is connected to the top of the dust collection box (2). The receiving plate (5) is shaped like a bucket.

10. A dust suppression spraying device for construction engineering according to claim 1, characterized in that, Protective nets (12) are provided at the suction port of the dust hood (7) and the opening of the receiving plate (5).

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