Construction flying dust treatment method suitable for arid region

Abstract

The invention discloses a construction flying dust treatment method suitable for an arid region, and belongs to the technical field of construction flying dust treatment. A construction flying dust treatment method suitable for an arid region comprises the steps that industrial syrup and water are mixed according to the proportion of 1: 4-1: 5, the mixture is evenly sprayed on a road with serious silt through spraying equipment, the road surface is soaked, and the spraying effect of the next step is maximized through the step; after the first spraying work is finished, the industrial syrup and the water are mixed according to the proportion of 1: 2-1: 3 and are uniformly sprayed through the spraying equipment, and the sprayed road surface does not influence the passage of traffic vehicles; according to the invention, industrial syrup with a certain mixing ratio is directly splashed on the arid silty soil road surface by replacing a water sprinkling mode, and the industrial syrup is dissolved with the silty soil on the road surface, so that a bonding effect is generated, and the effects of preventing dust and fixing dust are achieved. When a vehicle passes through a road on which industrial syrup is sprayed, no obvious flying dust is generated, and the effect can last for 10-15 days through one-time spraying.

Description

Technical Field

[0001] The invention relates to the technical field of construction dust control, and in particular to a construction dust control method suitable for arid areas. Background Art

[0002] Some construction sites have dirt roads. In the dry season, the dust on the road seriously affects the air quality. The extremely low visibility also poses a safety hazard to the endless flow of construction equipment. At present, the commonly used dust control measures on construction sites are mainly watering and cleaning and road hardening. However, this watering control measure is not practical in Africa, where water resources are scarce, the weather is hot and dry, and the evaporation is very fast in the dry season. It does not meet the requirements of water conservation and sustainable development. At the same time, the road hardening measures are expensive in engineering areas with long access roads, and cannot achieve the purpose of economy. In addition, most existing sprinkler equipment sprays at high pressure. When the high-pressure water flow contacts the ground, it will cause a lot of dust to float in the air, affecting the air quality.

[0003] The present application adopts industrial syrup instead of watering in engineering construction, with the aim of providing a construction method which is both environmentally friendly and economical, and can continuously and significantly reduce dust, as well as equipment to avoid large amounts of dust being dispersed during the spraying process, thereby solving the problem that watering has a poor dust reduction effect in hot and arid areas. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a method for controlling construction dust in arid areas.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A method for controlling construction dust in arid areas, comprising the following steps: S1. Mix industrial syrup and water in a ratio of 1:4 to 1:5, and spray evenly on the road with severe silt through a spraying device to wet the road surface. The purpose of this step is to maximize the spraying effect of the next step; S2. After the first spraying is completed, industrial syrup and water are mixed in a ratio of 1:2 to 1:3 and sprayed evenly through the spraying equipment. The road surface after spraying does not affect the passage of traffic vehicles.

[0006] In some embodiments, the mixing temperature in steps S1 and S2 needs to be maintained in the range of 75° C. to 85° C. so that the industrial syrup is more easily soluble in water.

[0007] In some embodiments, the spraying equipment includes a storage tank and a mobile carrier for driving the storage tank to move, the rear end of the mobile carrier is provided with a spraying pipe which is rotatable through a base, the upper surface of the mobile carrier is fixedly connected to a pump body for conveying the mixed liquid to the spraying pipe, the surface of the storage tank is provided with a heating ring and a heat preservation cover, and the surface of the mobile carrier is provided with a drying component for drying the mixed liquid after spraying by utilizing the residual heat in the heat preservation cover.

[0008] In some embodiments, the spray pipe is rotatably connected to the base surface via a rotating shaft, a push plate is fixedly connected to the upper surface of the movable carrier to drive the spray pipe to rotate in a vertical direction, and a shift block cooperating with the push plate is fixedly connected to the outer end of the rotating shaft.

[0009] In some embodiments, a telescopic rod for limiting the vertical rotation angle of the spray pipe is fixedly connected to the surface of the base, a spring is sleeved on the surface of the telescopic rod, and a limiting rod for limiting the horizontal rotation angle of the spray pipe is fixedly connected to the surface of the base.

[0010] In some embodiments, the drying component includes a spiral air duct opened on the inner wall of the insulation cover and a dividing cylinder that separates the spiral air duct and the heating ring. The upper surface of the mobile carrier is fixedly connected to a reversing valve connected to the bottom of the spiral air duct. One end of the two air outlets of the reversing valve are connected to a drying cover through a hose. The two drying hoods are respectively fixedly connected to both sides of the tail end of the spray pipe.

[0011] In some embodiments, a stirring assembly is disposed inside the storage tank.

[0012] In some embodiments, a temperature sensor for measuring the temperature inside the storage tank is disposed on the upper surface of the storage tank.

[0013] In some embodiments, the base is driven to rotate by a driving assembly.

[0014] Compared with the prior art, the present invention provides a method for controlling construction dust in arid areas, which has the following beneficial effects.

[0015] 1. The present invention directly sprinkles a certain proportion of industrial syrup on the dry silt road surface instead of watering, dissolving the silt on the road surface, thereby generating a bonding effect, achieving the effect of dust prevention and dust fixation. When vehicles pass through the road sprinkled with industrial syrup, no obvious dust will be generated. After one sprinkle, the effect can last for 10 to 15 days.

[0016] 2. The advantage of the present invention is that it utilizes the adhesiveness of syrup. Compared with the currently commonly used water sprinkling dust reduction measures, the dust reduction effect is more obvious. The price of industrial syrup raw materials is about US$7 per ton. The dust reduction effect produced by this measure is more lasting. The effect of one spraying can last for about 15 days. Compared with sprinkling water 3 to 4 times a day, it liberates manpower, mechanical equipment, and resources to a great extent, reduces construction costs, and the recycling of industrial syrup not only saves water resources, but is also non-toxic and harmless to the environment.

[0017] 3. The present invention rotates the spray pipe to a horizontal position so that the outlet of the spray pipe is close to the ground, and sprays the industrial syrup on the road surface in a natural flow manner, thereby preventing the dust on the road surface from being dispersed due to the flushing of the high-pressure water flow and affecting the air quality. The spray pipe is driven to rotate by the base, and the spray pipe is rotated to a vertical position under the action of the push plate and the shift block, thereby achieving a folding effect.

[0018] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of the present invention.

[0020] Figure 2 It is a rear view structural schematic diagram of the present invention.

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0022] Figure 4 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0023] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B.

[0024] Figure 6 It is a schematic diagram of the structure of the spray pipe in the present invention after being folded.

[0025] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point C in the middle.

[0026] Figure 8 It is a schematic diagram of the cross-sectional structure of the spray pipe after folding in the present invention.

[0027] Fig. 9 This is a schematic diagram of the road surface before syrup is sprayed in the present invention.

[0028] Fig.10 This is a schematic diagram of the road surface after spraying syrup in the present invention.

[0029] Fig.11 This is a schematic diagram of the road surface 15 days after spraying the syrup in the present invention.

[0030] In the figure: 1. Storage tank; 2. Mobile carrier; 3. Base; 4. Spray pipe; 5. Pump body; 6. Heating ring; 7. Insulation cover; 8. Drying assembly; 801. Splitting cylinder; 802. Spiral air duct; 803. Reversing valve; 804. Drying cover; 9. Push plate; 10. Divider block; 11. Telescopic rod; 12. Spring; 13. Limit rod; 14. Driving assembly; 15. Stirring assembly; 1501. Stirring shaft; 1502. Stirring rod; 1503. Scraper; 16. Temperature sensor. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-11 , a method for controlling construction dust in arid areas, firstly, industrial syrup and water are added into a storage tank 1 in a ratio of 1:4 to 1:5, and heated to 75°C to 85°C by a heating ring 6, and the stirring component 15 is operated to fully mix the industrial syrup and water; Then the mixed liquid in the storage tank 1 is transported to the spray pipe 4 through the pump body 5, and is naturally discharged through the spray port at the tail end of the spray pipe 4 to prevent a large amount of dust on the road from floating. At the same time, the spray pipe 4 is driven by the base 3 to swing back and forth in a fan shape to increase the spraying area. The construction personnel pull the spraying equipment to spray evenly on the road with serious silt, so that the mixed liquid penetrates into the road surface and wets the road surface. The purpose of this step is to maximize the spraying effect of the next step; After the first spraying is completed, industrial syrup and water are added into the storage tank 1 in a ratio of 1:2 to 1:3 (too high a ratio is not conducive to spraying by the spraying equipment), and heated again to 75°C to 85°C through the heating ring 6 and stirred and mixed, and then sprayed again. During the second spraying, the air pump sends air into the heat preservation cover 7, so that the air flow passes through the spiral air duct 802 and circulates in the heat preservation cover 7 and is fully heated. After being blown out through the drying cover 804, the mixed liquid sprayed on the road surface is dried to increase the solidification speed. The road surface after spraying does not affect the passage of traffic vehicles. At the same time, the two drying covers 804 can be rotated to discharge air through the reversing valve 803 to avoid blowing air on the side where the mixed liquid is not sprayed, causing a large amount of dust to be scattered.

[0033] It is understandable that instead of watering, a certain proportion of industrial syrup can be directly sprinkled on the dry silt road surface (industrial syrup is a high-concentration sugar solution produced in the sugar production process. Because it contains many impurities, it is difficult to reach edible value. At the same time, due to its low price, it is often treated as "waste". It is generally viscous and colloid in an environment of 10 to 30 degrees Celsius. Its chemical composition is composed of carbon, hydrogen, and oxygen elements. It is chemically non-polluting to the natural environment and groundwater). It dissolves with the silt on the road surface, thereby producing a bonding effect, achieving the effect of dust prevention and dust fixation. When vehicles pass through the road sprinkled with industrial syrup, no obvious dust will be generated. After one sprinkling, the effect can last for 10 to 15 days.

[0034] Specifically, the spraying equipment includes a storage tank 1 and a mobile carrier 2 for driving the storage tank 1 to move. A heating ring 6 and a heat preservation cover 7 are arranged on the surface of the storage tank 1. The mobile carrier 2 includes a base plate with multiple moving wheels fixed to the lower surface of the base plate. A handle is fixedly connected to the upper surface of the base plate. A temperature sensor 16 for measuring the temperature inside the storage tank 1 is arranged on the upper surface of the storage tank 1.

[0035] It can be understood that, under the action of the bottom plate and the moving wheels, the storage tank 1 and the spray pipe 4 are driven to move and spray, so as to achieve the purpose of flexible spraying. By setting the heating ring 6, it is convenient to heat the industrial syrup in the storage tank 1 so that it is fully dissolved in water and maintained at the set temperature to avoid the syrup solidification caused by low temperature. The temperature sensor 16 is used to facilitate real-time detection of the temperature in the storage tank 1.

[0036] Specifically, the rear end of the mobile carrier 2 is rotatably connected to the base 3, and the surface of the base 3 is rotatably connected to the spray pipe 4 through a rotating shaft. The base 3 is driven to rotate by a driving assembly 14. The driving assembly 14 includes gears and a driving motor that drives the gears to rotate. The driving motor is fixedly connected to the lower surface of the mobile carrier 2, and the gear ring is assembled and fixed on the surface of the base 3. The gear ring and the gear are meshed. The upper surface of the mobile carrier 2 is fixedly connected to a pump body 5 for conveying the mixed liquid to the spray pipe 4. The water inlet of the pump body 5 bypasses the heat preservation cover 7 from the lower surface of the mobile carrier 2 and is connected to the bottom of the storage tank 1, and the water outlet of the pump body 5 is connected to one end of the water inlet of the spray pipe 4 through a hose.

[0037] It can be understood that the mixed liquid in the storage tank 1 is extracted and transported to the spray pipe 4 through the hose through the operation of the pump body 5, and the industrial syrup is sprayed on the road surface in a natural flow manner, thereby preventing the dust on the road surface from being dispersed due to the scouring of the high-pressure water flow and affecting the air quality. At the same time, the drive motor drives the gear to rotate, and under the meshing relationship between the gear and the gear ring, the base 3 and the spray pipe 4 are driven to swing back and forth at an angle of ±60 degrees to expand the spraying area.

[0038] Specifically, the surface of the mobile carrier 2 is provided with a drying component 8 for drying the sprayed mixed liquid by utilizing the residual heat in the heat preservation cover 7. The drying component 8 includes a spiral air duct 802 opened on the inner wall of the heat preservation cover 7 and a dividing cylinder 801 for separating the spiral air duct 802 and the heating ring 6. The dividing cylinder 801 is fixedly connected to the inside of the heat preservation cover 7. A reversing valve 803 connected to the bottom of the spiral air duct 802 is fixedly connected to the upper surface of the mobile carrier 2. One end of the two air outlets of the reversing valve 803 are connected to a drying cover 804 through a hose. The two drying covers 804 are respectively fixedly connected to the two sides of the tail end of the spray pipe 4.

[0039] It can be understood that when spraying syrup for the second time, air is delivered to the heat preservation cover 7 through the air pump, so that the air flow passes through the spiral air duct 802 and circulates in the heat preservation cover 7 and is fully heated, and the hot air is delivered to the drying cover 804 and blown out through the reversing valve 803 and the hose, so as to dry the mixed liquid sprayed on the road surface and increase the solidification speed. Under the action of the reversing valve 803, the two drying covers 804 are rotated to discharge air. When the spraying pipe 4 rotates clockwise, the drying cover 804 away from the side of the reversing valve 803 is discharged. When the spraying pipe 4 rotates counterclockwise, the drying cover 804 close to the side of the reversing valve 803 is discharged, so that the drying cover 804 always keeps drying the sprayed road surface, avoiding the hot air from blowing away the dust on the road surface and affecting the air quality.

[0040] Specifically, a push plate 9 for driving the spray pipe 4 to rotate in a vertical direction is fixedly connected to the upper surface of the mobile carrier 2, a shift block 10 for cooperating with the push plate 9 is fixedly connected to the outer end of the rotating shaft, the side of the push plate 9 corresponding to the shift block 10 is an inclined surface, the shift block 10 is L-shaped, a telescopic rod 11 for limiting the vertical rotation angle of the spray pipe 4 is fixedly connected to the surface of the base 3, an arc plate is fixedly connected to the upper end of the telescopic rod 11, a spring 12 is sleeved on the surface of the telescopic rod 11, and a limit rod 13 for limiting the horizontal rotation angle of the spray pipe 4 is fixedly connected to the surface of the base 3.

[0041] It can be understood that the spray pipe 4 is driven to rotate in the direction of the push plate 9 by the base 3, so that the shift block 10 collides with the surface of the push plate 9, and the push plate 9 drives the rotating shaft and the spray pipe 4 to rotate to a vertical position. At the same time, under the support effect of the telescopic rod 11 and the arc plate, the spray pipe 4 is kept in a vertical state to achieve the purpose of folding. By setting the spring 12, a thrust is applied to the spray pipe 4, so that when the shift block 10 is separated from the push plate 9, the spray pipe 4 is rotated in the direction of the limit rod 13. By setting the limit rod 13, the spray pipe 4 is supported to keep it horizontal.

[0042] Specifically, a stirring assembly 15 is provided inside the storage tank 1, and the stirring assembly 15 includes a stirring shaft 1501 rotatably connected to the top of the storage tank 1 and a plurality of stirring rods 1502 symmetrically fixed on the surface of the stirring shaft 1501. The plurality of stirring rods 1502 are fixedly connected with a scraper 1503 at one end away from the stirring shaft 1501. The scraper 1503 is U-shaped and fits against the inner wall of the storage tank 1. The upper end of the stirring shaft 1501 is driven by a driving motor, and the driving motor is fixedly connected to the upper surface of the storage tank 1.

[0043] It can be understood that the driving motor drives the stirring shaft 1501 and the stirring rod 1502 to rotate, so that the industrial syrup and water are fully mixed. At the same time, the scraper 1503 rotates on the inner wall of the storage tank 1, so as to facilitate the cleaning of the inner wall of the storage tank 1 when cleaning the storage tank 1, thereby preventing the syrup from solidifying on its inner wall.

[0044] In the present invention, industrial syrup and water are added into the storage tank 1 in a ratio of 1:4, and heated to 80°C by the heating ring 6, and then the driving motor drives the stirring shaft 1501 and the stirring rod 1502 to rotate, so that the industrial syrup and the water are fully mixed, and then the driving motor drives the gear to rotate, and under the meshing relationship between the gear and the gear ring, the base 3 and the spray pipe 4 are driven to rotate counterclockwise, so that the shift block 10 is separated from the push plate 9, and under the thrust of the spring 12 and the telescopic rod 11, the spray pipe 4 is rotated to the horizontal, and the spray pipe 4 is supported under the action of the limit rod 13, and then the pump body 5 is operated to The mixed liquid in the storage tank 1 is extracted from the bottom and transported to the spray pipe 4 through a hose, and is naturally discharged through the spray port at the tail end of the spray pipe 4. At the same time, the driving motor and the gear drive the base 3 and the spray pipe 4 to swing back and forth at an angle of ±60 degrees to expand the spraying area. The staff drives the spray pipe 4 to move and spray through the mobile carrier 2, so that the mixed liquid penetrates into the road surface and fully wets the road surface. After completing the first spraying work, industrial syrup and water are added to the storage tank 1 in a ratio of 1:2 to 1:3, and are heated again to 80-90°C by the heating ring 6 and stirred and mixed. The above-mentioned spraying method is used to spray again. At the same time, air is sent into the heat preservation cover 7 through the air pump, so that the air flow passes through the spiral air duct 802 and circulates in the heat preservation cover 7 and is fully heated. The hot air is sent to the drying cover 804 through the reversing valve 803 and the hose and blown out, so as to dry the mixed liquid sprayed on the road surface and increase the solidification speed. Under the action of the reversing valve 803, the two drying covers 804 are rotated to discharge air. When the spraying pipe 4 rotates clockwise, the drying cover 804 on the side away from the reversing valve 803 is discharged. When the spraying pipe 4 rotates counterclockwise, the drying cover 804 on the side close to the reversing valve 803 is discharged, so that The drying hood 804 always keeps drying the sprayed road surface to prevent hot air from blowing away the dust on the road surface and affecting the air quality. After the spraying work is completed, clean water is added to the storage tank 1 to dilute and rinse the remaining syrup, and discharged through the water outlet of the spray pipe 4 to prevent the syrup from solidifying in the storage tank 1. Then, the driving motor and the gear drive the base 3 and the spray pipe 4 to rotate clockwise, so that the dial block 10 collides with the surface of the push plate 9, and the push plate 9 drives the rotating shaft and the spray pipe 4 to rotate to vertical. At the same time, under the support effect of the telescopic rod 11, the spray pipe 4 is kept in a vertical state to achieve the purpose of folding.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling construction dust in arid areas, characterized in that: The following steps are involved: S1. Mix industrial syrup and water in a ratio of 1:4 to 1:5, and spray evenly on the road with severe silt through a spraying device to wet the road surface. The purpose of this step is to maximize the spraying effect of the next step; S2. After the first spraying is completed, industrial syrup and water are mixed in a ratio of 1:2 to 1:3 and sprayed evenly through the spraying equipment. The road surface after spraying does not affect the passage of traffic vehicles.

2. A method for controlling construction dust in arid areas according to claim 1, characterized in that: The mixing temperature in steps S1 and S2 needs to be maintained in the range of 75° C. to 85° C. so that the industrial syrup can be more easily dissolved in water.

3. A method for controlling construction dust in arid areas according to claim 1, characterized in that: The spraying device comprises a storage tank (1) and a mobile carrier (2) for driving the storage tank (1) to move; a spraying pipe (4) is rotatably arranged at the rear end of the mobile carrier (2) through a base (3); a pump body (5) for conveying a mixed liquid to the spraying pipe (4) is fixedly connected to the upper surface of the mobile carrier (2); a heating ring (6) and a heat-insulating cover (7) are arranged on the surface of the storage tank (1); and a drying component (8) for drying the sprayed mixed liquid by utilizing the residual heat in the heat-insulating cover (7) is arranged on the surface of the mobile carrier (2).

4. A method for controlling construction dust in arid areas according to claim 3, characterized in that: The spray pipe (4) is rotatably connected to the surface of the base (3) via a rotating shaft, a push plate (9) is fixedly connected to the upper surface of the mobile carrier (2) for driving the spray pipe (4) to rotate in a vertical direction, and a shifting block (10) matching the push plate (9) is fixedly connected to the outer end of the rotating shaft.

5. The method for controlling construction dust in arid areas according to claim 3 is characterized in that: A telescopic rod (11) for limiting the vertical rotation angle of the spray pipe (4) is fixedly connected to the surface of the base (3); a spring (12) is sleeved on the surface of the telescopic rod (11); and a limiting rod (13) for limiting the horizontal rotation angle of the spray pipe (4) is fixedly connected to the surface of the base (3).

6. A method for controlling construction dust in arid areas according to claim 3, characterized in that: The drying assembly (8) comprises a spiral air duct (802) provided on the inner wall of the heat-insulating cover (7) and a dividing cylinder (801) for separating the spiral air duct (802) and the heating ring (6); a reversing valve (803) connected to the bottom of the spiral air duct (802) is fixedly connected to the upper surface of the mobile carrier (2); one end of the two air outlets of the reversing valve (803) are connected to a drying cover (804) via a hose; the two drying covers (804) are respectively fixedly connected to the two sides of the tail end of the spray pipe (4).

7. The method for controlling construction dust in arid areas according to claim 3 is characterized in that: A stirring assembly (15) is arranged inside the storage tank (1).

8. The method for controlling construction dust in arid areas according to claim 3 is characterized in that: The upper surface of the storage tank (1) is provided with a temperature sensor (16) for measuring the temperature inside the storage tank (1).

9. The method for controlling construction dust in arid areas according to claim 3, characterized in that: The base (3) is driven to rotate by a driving assembly (14).

Images