CN209464780U - A Construction Dust Control System - Google Patents

Abstract

The utility model discloses a construction dust control system, which includes dust suppression equipment and a detection unit. The dust suppression equipment includes a base and a vertically arranged main shaft. The sprinkling unit and the detection unit, the motor can make the sprinkling unit and the detection unit rotate around the main shaft, the water pump can make the sprinkling unit spray water; the detection unit includes an infrared receiver and an infrared emitter set oppositely, and the infrared receiver and the infrared emitter There is a horizontally penetrating dust collection chamber between them, and the ventilation area of the air inlet of the dust collection chamber is larger than that of the air outlet. The utility model can monitor in real time, realize automatic water sprinkling through the central controller, and effectively reduce the dust index on the construction site.

Description

A Construction Dust Control System

technical field

The utility model relates to the technical field of environmental protection engineering, in particular to a construction dust control system.

Background technique

Particulate matter pollution has a wide range of influences on the air quality of cities in my country, and is the primary factor of air pollution in most cities. Particle pollution endangers the environment and human health, and has become a world pollution problem, and dust is the main factor causing urban particle pollution. With the deepening of my country's industrialization, the problem of dust pollution is becoming more and more serious. The dust problem not only causes a large amount of resource loss, but also pollutes the surrounding environment, affecting people's normal production and life. Dust from construction sites is an important source of inhalable particulate matter pollution in urban areas.

Green construction has become one of the key points of construction site management for construction companies today, and dust control on construction sites is the top priority of green construction. To control the dust, there must be a good monitoring and control system. There are many control systems for dust on the construction site, such as increasing the hardening area and spraying water. There are few monitoring systems for dust, and only professional instruments such as model 5030 for measuring PM2.5 or fh 62c-14 for measuring PM10 are used for monitoring. However, these professional equipment are not suitable for the construction site. One is expensive, and the other is the lack of real-time and linkage, which makes it impossible to monitor for a long time, and it cannot be used in conjunction with dust suppression equipment such as spraying.

Utility model content

The main purpose of the utility model is to provide a construction dust control system, real-time monitoring, automatic watering through the central controller, effectively reducing the dust index of the construction site.

In order to achieve the above purpose, the technical solution adopted by the utility model is: including dust suppression equipment and a detection unit, the dust suppression equipment includes a base and a vertically arranged main shaft, a motor, a water pump and a central controller are arranged in the base, and the central control The detector can receive the signal from the detection unit and send out a signal to control the motor and the water pump; the main shaft is connected with the sprinkler unit and the detection unit, the motor can make the sprinkler unit and the detection unit rotate around the main shaft, and the water pump can make the sprinkler unit spray water; the detection The unit includes an infrared receiver and an infrared emitter arranged oppositely, and a horizontally penetrating dust collection chamber is arranged between the infrared receiver and the infrared emitter, and the ventilation area of the air inlet of the dust collection chamber is larger than that of the air outlet; rod and the first sprinkling rod, the second sprinkling rod is horizontally fixed on the side of the upper end of the main shaft, and the second sprinkling rod is provided with several second nozzles for spraying water downward; the lower end of the main shaft is sleeved with a chuck centered on the main shaft , the first sprinkling rod is horizontally fixed on one side of the chuck, and the first sprinkling rod is provided with several first nozzles for spraying water upwards; the bottom of the chuck is fixed with an internal gear with the main shaft as the axis, and the main shaft is keyed with The inner gear is opposite to the driving wheel, and the driven wheel is meshed with the inner gear. The driven wheel rotates around the positioning shaft fixed on the base; the motor fixed in the base drives the main shaft to rotate, so that the first sprinkling rod And the second sprinkling bar rotates counterclockwise around the main shaft.

Take the following steps while working:

Step 1: Fix the dust suppression equipment in the construction area, connect the dust suppression equipment to the power supply, and connect the water pump in the dust suppression equipment to the external water source; since the dust suppression equipment occupies a small area, it can be sprinkled according to the dust suppression equipment. In the construction area, several dust suppression devices are arranged at intervals to improve the dust suppression efficiency.

Step 2: Connect the power supply so that the central controller in the dust suppression equipment can control the motor and water pump to work through the feedback from the detection unit; the dust suppression equipment includes a base and a vertically arranged main shaft, and the main shaft is connected with a sprinkler unit and a detection unit. The motor can make the sprinkler unit and the detection unit rotate around the main shaft, and the water pump can make the sprinkler unit spray water; when the sprinkler unit rotates, the water moves outward under the action of centrifugal force, which can increase the dust suppression area.

Step 3: The detection unit includes an infrared receiver and an infrared emitter arranged oppositely. There is a horizontally penetrating dust collection chamber between the infrared receiver and the infrared emitter. The ventilation area of the air inlet of the dust collection chamber is larger than that of the air outlet; the infrared receiver The detector judges whether to receive the signal from the infrared transmitter every time t; when the dust density is high, the dust collection chamber will be filled with dust, which interferes with the signal received by the infrared receiver. The dust density detected by the detection unit can only judge whether it exceeds a rough range. Although the exact value cannot be detected, it can meet the use of the construction site.

Step 4: If the infrared receiver judges that the signal is received, it means that the dust density in the construction area has not exceeded the critical point, and feeds back to the central controller, which controls the motor to work, so that the detection unit rotates n circles with the main shaft as the axis, The working time of the motor is not greater than t; when the detection unit rotates, the air flows from the air inlet of the dust collection chamber to the air outlet; there are two possibilities for the infrared receiver to receive the signal, one is that the dust density in the area does not exceed the critical point, and the other is The second is that the location of the detection unit is just at a place where there is less dust, so the detection unit is rotated to make the dust density near the detection unit more uniform under the action of the wind, and the dust is actively collected through the dust collection chamber. Since the air inlet is larger than the air outlet, In the case of high dust density, part of the dust will stay in the dust collection chamber, and in the case of low dust density, it will directly leave the dust collection chamber through the air outlet, so that the detection is more accurate.

Step 5: If the infrared receiver judges that the signal is not received, it means that the dust density in the construction area exceeds the critical point, and it will be fed back to the central controller. At the same time, water is sprayed to suppress dust; the detection unit rotates together, and the air flows from the air outlet of the dust collection chamber to the air inlet. Because the air outlet is smaller than the air inlet, it is convenient for the air to blow out the dust in the dust collection chamber, so that the detection unit is ready for the next detection, and the infrared receiver is prevented from being unable to receive signals due to the long-term accumulated dust. The working time of the motor and the water pump is the same as the interval for detecting the dust density of the detection unit. When the dust density is still detected to exceed the critical point next time, the motor and the water pump can continue to work without stopping halfway.

As an improvement, t is 10-20 minutes, and n is 5-10 cycles.

The first sprinkler rod and the second sprinkler rod cooperate with each other to sprinkle water at the upper and lower ends to improve the dust suppression area and efficiency; because the first sprinkler rod and the second sprinkler rod rotate in opposite directions, and the first sprinkler rod sprays water upward, so the upper The wet dust will not accumulate on the first sprinkler bar below after sprinkling water by the second sprinkler bar; when the first sprinkler bar and the second sprinkler bar are staggered, the two ends will spray water relative to each other, which will increase the dust suppression effect; due to the internal gear Different from the diameter of the driving wheel, the first sprinkler rod and the second sprinkler rod will periodically alternate at different positions, so that the first sprinkler rod and the second sprinkler rod can work independently of each other and cooperate periodically to improve the dust suppression efficiency .

As an improvement, the detection unit is fixed on the side of the upper end of the main shaft opposite to the second sprinkler rod. The detection unit is installed at the upper end, and will not be disturbed by the water sprinkling of the first sprinkler rod and the second sprinkler rod, so as to avoid excessive water vapor causing dust to stick in the dust collection chamber.

As an improvement, there is a water inlet around the main shaft in the base, and the water pump can press the external water source to the water inlet. There is a main water pipe vertically in the main shaft, and a water inlet pipe leading to the water inlet is connected horizontally at the bottom of the main water pipe. When the main shaft rotates, the water pipe is always connected with the water inlet tank, and the upper end of the main water pipe is horizontally connected with a second sprinkling pipe leading to the second nozzle; the chuck is equipped with a water outlet around the main shaft, and one side of the main water pipe is horizontally connected with a water outlet pipe leading to the second nozzle. The water outlet pipe of the water outlet is always connected with the water outlet when the main shaft rotates, and one side of the water outlet is horizontally connected with a first sprinkling pipe leading to the first nozzle. The water inlet tank and the water outlet tank are set so that when the main shaft rotates, the water pipe can be connected without twisting, so as to prolong the service life.

As an improvement, a baffle plate slidingly connected in the chuck is provided between the water outlet tank and the first sprinkling pipe. The bottom end of the chuck is provided with an annular groove that matches the positioning shaft. When the first sprinkler rod rotates, the positioning shaft is in the annular groove. Sliding inside; the baffle is provided with a throttle hole matched with the first sprinkling pipe, and the hemispherical end at the bottom of the baffle can move into the annular groove under the action of gravity; when the first sprinkling rod rotates to the direction of the positioning axis, the positioning The shaft pushes the baffle to move upwards, the throttle hole and the first sprinkling pipe are dislocated, and the baffle reduces the pipe cross-sectional area of the first sprinkling pipe and increases the flow rate of the water flow leading to the first nozzle. Since the first sprinkling pipe is arranged below the second sprinkling pipe and the first nozzle sprays water upwards, wet dust may cover the first nozzle, thereby causing blockage, increasing the flow rate of the water flow leading to the first nozzle through the positioning shaft, which can Periodically unclog the first nozzle before excessive clogging occurs.

As an improvement, when fixing the dust suppression equipment, the base is fixedly connected to the ground, and the positioning axis on the base is located on the side where the construction action is the largest in the construction area. Since the flow velocity of the water flow leading to the first nozzle at the position of the positioning axis is relatively high, dust can be suppressed more efficiently, so it is installed on the side where the construction action is the largest and the dust is the most.

As an improvement, an impeller fixed on the main shaft is provided between the first sprinkling rod and the second sprinkling rod, and the impeller can drive the main shaft to rotate under the action of wind force. The detection unit rotates under the action of the wind, which can detect the dust in the area more accurately.

The utility model has the advantages of: real-time monitoring, automatic sprinkling of water through the central controller, effectively reducing the dust index on the construction site; simple structure, low cost of the detection unit, easy to promote; can adjust the light intensity of the infrared emitter to correspond to different monitoring density of dust.

Description of drawings

Fig. 1 is a brief flow chart of the utility model;

Fig. 2 is a sectional view of the dust suppression equipment of the present utility model;

Fig. 3 is the sectional view of A-A direction in Fig. 2;

Fig. 4 is the sectional view of B-B direction in Fig. 2;

Fig. 5 is a partial system diagram of C in Fig. 2;

Reference signs: 1. Base; 11. Motor; 12. Water pump; 13. Water inlet tank; 14. Positioning shaft; 15. Driven wheel; 2. Main shaft; 21. Main water pipe; 22. Water inlet pipe; 23. Water outlet pipe ; 24. The second sprinkling pipe; 25. Driving wheel; 3. The first sprinkling rod; 31. Internal gear; 32. Outlet tank; 33. The first sprinkling pipe; 34. The first nozzle; 35. Annular groove; 36. Baffle; 37. Throttle hole; 38. Chuck; 4. Second sprinkler rod; 41. Second nozzle; 5. Detection unit; 51. Dust collection chamber; 52. Air outlet; 53. Infrared receiver; 54 . infrared emitter; 55. air inlet; 6. impeller.

Detailed ways

The following description is used to disclose the utility model so that those skilled in the art can realize the utility model. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

Take the following steps when the utility model works:

Step 1: Fix the dust suppression equipment in the construction area, connect the dust suppression equipment to the power supply, and connect the water pump 12 in the dust suppression equipment to the external water source;

Step 2: Connect the power supply so that the central controller in the dust suppression device can output signals to control the motor 11 and the water pump 12 through the feedback of the detection unit 5; the dust suppression device includes a base 1 and a vertically arranged main shaft 2, on which The sprinkler unit and the detection unit 5 are connected, the motor 11 can make the sprinkler unit and the detection unit 5 rotate around the main shaft 2, and the water pump 12 can make the sprinkler unit spray water;

Step 3: The detection unit 5 includes an infrared receiver 53 and an infrared emitter 54 that are arranged oppositely. A dust collection chamber 51 that penetrates horizontally is provided between the infrared receiver 53 and the infrared emitter 54. The air inlet 55 of the dust collection chamber 51 The ventilation area is larger than the air outlet 52; the infrared receiver 53 judges whether to receive the signal sent by the infrared emitter 54 every twenty minutes;

Step 4: If the infrared receiver 53 judges to receive the signal, it means that the dust density in the construction area does not exceed the critical point, and feeds back to the central controller. The central controller sends a signal to control the motor 11 to work, so that the detection unit 5 takes the main shaft 2 as the The shaft center rotates ten times, and the motor 11 rotates at two times per minute; when the detection unit 5 rotates, the air flows from the air inlet 55 of the dust collection chamber 51 to the air outlet 52;

Step 5: If the infrared receiver 53 judges that no signal is received, it means that the dust density in the construction area exceeds the critical point, and feeds back to the central controller. The central controller sends a signal to control the motor 11 and the water pump 12 to work for 20 minutes. The sprinkler unit rotates while spraying water to suppress dust; the detection unit 5 rotates together, and the air flows from the air outlet 52 of the dust collecting chamber 51 to the air inlet 55 .

Specifically, the sprinkling unit includes a second sprinkling rod 4 and a first sprinkling rod 3, the second sprinkling rod 4 is horizontally fixed on the side of the upper end of the main shaft 2, and the second sprinkling rod 4 is provided with several second nozzles for spraying water downwards. 41; The lower end of the main shaft 2 is sleeved with a chuck 38 with the main shaft 2 as the axis, the first sprinkling rod 3 is horizontally fixed on one side of the chuck 38, and the first sprinkling rod 3 is provided with several first nozzles for spraying water upwards 34; the bottom of the chuck 38 is fixed with the internal gear 31 with the main shaft 2 as the axis, the main shaft 2 is keyed with the driving wheel 25 opposite to the internal gear 31, and the driving wheel 25 and the internal gear 31 are meshed with a driven wheel 15 , the driven wheel 15 rotates around the positioning shaft 14 fixed on the base 1; the motor 11 fixed in the base 1 drives the main shaft 2 to rotate, so that the first sprinkling rod 3 and the second sprinkling rod 4 reversely rotate around the main shaft 2 .

Specifically, the detection unit 5 is fixed on the side of the upper end of the main shaft 2 opposite to the second sprinkler bar 4 .

Specifically, the base 1 is provided with a water inlet tank 13 surrounding the main shaft 2, and the water pump 12 can press the external water source to the water inlet tank 13. A main water pipe 21 is vertically provided in the main shaft 2, and a water pipe 21 is horizontally connected to the bottom of the main water pipe 21. To the water inlet pipe 22 of the water inlet tank 13, the water inlet pipe 22 is always communicated with the water inlet tank 13 when the main shaft 2 rotates, and the upper end of the main water pipe 21 is horizontally connected with a second sprinkler pipe 24 leading to the second nozzle 41; There is a water outlet trough 32 surrounding the main shaft 2, and one side of the main water pipe 21 is horizontally connected to a water outlet pipe 23 leading to the water outlet trough 32. There is a first sprinkler pipe 33 leading to a first nozzle 34 .

Specifically, a baffle plate 36 slidingly connected in the chuck 38 is provided between the water outlet groove 32 and the first sprinkler pipe 33, and the bottom end of the chuck 38 is provided with an annular groove 35 that cooperates with the positioning shaft 14. The first sprinkler rod 3 When rotating, the positioning shaft 14 slides in the annular groove 35; the baffle plate 36 is provided with a throttling hole 37 matched with the first sprinkler pipe 33, and the hemispherical end at the bottom of the baffle plate 36 can move to the annular groove 35 under the action of gravity Inside; when the first sprinkling rod 3 rotates to the direction of the positioning shaft 14, the positioning shaft 14 pushes the baffle plate 36 to move upward, the throttle hole 37 is misplaced with the first sprinkling pipe 33, and the baffle plate 36 makes the pipeline of the first sprinkling pipe 33 cut off. The area is reduced, increasing the water flow rate to the first nozzle 34 .

Specifically, when fixing the dust suppression equipment, the base 1 is fixedly connected to the ground, and the positioning axis 14 on the base 1 is located on the side of the construction area where the construction action is the largest.

Specifically, an impeller 6 fixed on the main shaft 2 is arranged between the first sprinkling rod 3 and the second sprinkling rod 4 , and the impeller 6 can drive the main shaft 2 to rotate under the action of wind force.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions describe only the principle of the utility model. There will be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of construction fugitive dust control system, it is characterised in that: including dust suppression equipment and detection unit, dust suppression equipment includes pedestal With the main shaft being vertically arranged, pedestal is interior to be equipped with motor, water pump and central controller, and central controller can receive detection unit Signal and issue signal control motor and pump working；Watering unit and detection unit, motor are connected on main shaft to be made Watering unit and detection unit are rotated by axle center of main shaft, and water pump can make unit water spray of sprinkling water；Detection unit includes opposite sets The infrared remote receiver and infrared transmitter set are equipped with horizontal perforative dust-collecting cavity, collection between infrared remote receiver and infrared transmitter The draught area of the air inlet of dirt chamber is greater than air outlet；Unit of sprinkling water includes the second watering bar and the first watering bar, the second watering Bar is horizontally fixed on main shaft upper end side, and the second watering bar is equipped with several second nozzles sprayed water downwards；End cap under main shaft Be connected to the chuck using main shaft as axle center, the first watering bar is horizontally fixed on chuck side, the first watering bar be equipped with several to The first jet of upper water spray；Chuck bottom is fixed with the internal gear using main shaft as axle center, is linked on main shaft opposite with internal gear Driving wheel, engaged between driving wheel and internal gear and be connected with driven wheel, driven wheel is around fixed locating shaft rotation on the base； The motor being fixed in pedestal drives main shaft rotation, so that the first watering bar and second be made to sprinkle water bar around main shaft reverse rotation.

2. a kind of construction fugitive dust control system according to claim 1, it is characterised in that: detection unit is fixed on main shaft The side of the opposite second watering bar in end.

3. a kind of construction fugitive dust control system according to claim 1, it is characterised in that: be equipped in pedestal around main shaft External source can be pressed to intake chamber, be equipped with a water main in main shaft vertically by intake chamber, water pump, and water main bottom level connects It is connected to the water inlet pipe for leading to intake chamber, water inlet pipe is connected to intake chamber always when main shaft rotates, and water main upper end is horizontal It is connected with second sprinkler pipe for leading to second nozzle；The effluent trough around main shaft is equipped in chuck, water main side is horizontal It is connected with the outlet pipe for leading to effluent trough, outlet pipe is connected to effluent trough always when main shaft rotates, effluent trough side water Flushconnection has first sprinkler pipe for leading to first jet.

4. a kind of construction fugitive dust control system according to claim 3, it is characterised in that: effluent trough and the first sprinkler pipe it Between be equipped with the baffle that is slidably connected in chuck, chuck bottom end is equipped with annular groove cooperate with locating shaft, and the first watering bar rotates When, locating shaft slides in a ring groove；Baffle is equipped with the throttle orifice cooperated with the first sprinkler pipe, and the hemispherical ends of baffle bottom can It is moved in annular groove under gravity；When first watering bar rotate to positioning axis direction when, locating shaft push baffle to Upper movement, throttle orifice and the first sprinkler pipe misplace, and baffle reduces the pipeline section product of the first sprinkler pipe, and the first spray is led in increase The flow rate of water flow of mouth.

5. a kind of construction fugitive dust control system according to claim 1, it is characterised in that: the first watering bar and the second watering The impeller being fixed on main shaft is equipped between bar, impeller can drive main shaft to rotate under the action of the wind.