An intelligent dust suppressant adding and spraying device and its use method

Abstract

An intelligent dust suppressant addition and spraying device and its usage method are disclosed. Two identical water tanks are placed side-by-side on a support plate. A water tank cover is installed on the top of each tank. A stirring motor, an inlet valve, an inlet stepper motor, a belt system, and a dust suppressant storage tank are installed on the water tank cover. A rotating mist cannon is also installed on the support plate for spraying. A water pump, an outlet valve, and an outlet stepper motor are installed at the bottom of the support plate. The water pump transports the dust suppressant solution from the water tanks to the mist cannon for spraying via a flexible water pipe. A liquid level monitor, a controller, and a dust concentration monitor are installed on the side of each water tank. The liquid level monitor and dust concentration monitor transmit signals to the controller, which responds and controls the working status of the stepper motor, belt, and water pump, achieving intelligent control. This invention enables automated operation of the device, achieving quantitative feeding and intelligent adjustment of the spraying rate, avoiding material waste, and has significant environmental and economic benefits.

Description

Technical Field

[0001] This invention relates to a dust suppressant spraying device, specifically an intelligent dust suppressant addition and spraying device and its usage method, belonging to the field of industrial and mining dust control technology. Background Technology

[0002] In recent years, the rapid development of the mining industry has led to increasingly serious dust pollution problems, especially in high-dust-generating industries such as mining and washing, posing a significant threat to the environment and workers. Traditional dust suppression methods, such as water spraying and misting, while having some dust suppression effect, often suffer from problems such as water waste, unstable dust suppression effects, and easy equipment wear and tear. Furthermore, they cannot adjust the spraying intensity according to the actual dust concentration, resulting in unsatisfactory dust suppression effects.

[0003] To address these issues, this invention designs an intelligent dust suppressant addition and spraying device. A level monitor continuously monitors the water tank level, transmitting the data to a control system. This control system then manages the belt and stepper motor, achieving automated control. A belt speed regulator adjusts the belt speed for different types of dust suppressants, ensuring that the required amount of dust suppressant and water is added to the tank simultaneously. A dust concentration monitor tracks the dust concentration at the device's location, adjusting the water pump pressure and the spraying rate of the mist cannon accordingly. This intelligent system and real-time adjustable spraying rate not only reduce operational complexity and save costs, bringing significant benefits to businesses, but also effectively improves dust pollution in workplaces and enhances workplace air quality. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent dust suppressant addition and spraying device and its usage method. It can transmit the liquid level signal to the controller through a liquid level monitor, and then transmit the signal to the control system to make a response, thereby realizing automated control. It can also adjust the spraying rate at any time according to the dust concentration on site, effectively improving dust reduction efficiency and realizing the automated process of dust suppressant addition and spraying.

[0005] To achieve the above objectives, the present invention provides an intelligent dust suppressant addition and spraying device, including a support plate, a left water tank, a right water tank, a water tank cover, and a fog cannon. The left and right water tanks have the same structure and are installed side by side on the top surface of the support plate. The water tank cover is installed on the top of the left and right water tanks.

[0006] The fog cannon is movably mounted on the upper surface of the support plate via a support component, and multiple nozzles are installed on the side of the fog cannon away from the right water tank;

[0007] A left stirring motor, a right stirring motor, a left inlet valve, a right inlet valve, a left inlet stepper motor, and a right inlet stepper motor are installed on the top of the water tank cover. The left stirring motor 6 drives the corresponding stirring device to rotate clockwise, and the right stirring motor drives the corresponding stirring device to rotate counterclockwise. The water inlet pipe is installed on the top of the water tank cover and is connected to the left inlet valve and the right inlet valve through pipelines. The water inlet pipe is used to supply water to the left and right water tanks.

[0008] A dust concentration monitor, a controller, and a liquid level monitor are installed on the side of the left and right water tanks near the water inlet pipe. The dust concentration monitor is connected to the controller through a conduit, and the liquid level monitor is also connected to the controller through a conduit.

[0009] The bottom of the support plate is equipped with a left outlet stepper motor, a right outlet stepper motor, a left outlet, and a right outlet. The left outlet valve is installed on the left outlet, and the right outlet valve is installed on the right outlet. The two symmetrical interfaces of the three-way connector are respectively installed on the left outlet valve and the right outlet valve. The other interface is connected to the water pump. The other interface of the water pump is equipped with a soft water pipe, which is connected to the fog cannon through the soft water pipe.

[0010] It also includes a belt system installed on the upper surface of the water tank cover plate. The belt system is a mirror-symmetrical structure with the left and right water tanks as references. The dust suppressant storage box is installed above the belt system through the support shaft of the belt system, and the outlet of the dust suppressant storage box is in contact with the belt of the belt system. The dust suppressant passing through the belt enters the left and right water tanks respectively through the inlet on the upper surface of the water tank cover plate.

[0011] The bottom of the two water tanks is concave. The left water tank contains a left level gauge, and the right water tank contains a right level gauge. Both water tanks are equipped with the same stirring rod, and each stirring rod is equipped with two streamlined fan blades with multiple small holes.

[0012] The support components include a support frame, a rotating disk, and an adjustment device. The rotating disk is installed on the upper surface of the support plate, and its adjustment angle is 0 to 180°, allowing for left and right adjustment of the fog cannon. The support frame consists of a bottom support rod and two side support rods. The bottom support rod is installed on the rotating disk, and the tops of the two side support rods are connected to the circumferential sidewalls of the fog cannon. The fog cannon can be adjusted up and down by the adjustment device installed on the outer side of the top of the two side support rods, with an adjustment angle of 0 to 180°.

[0013] The belt system also includes baffles, scrapers, and mounting blocks. The mounting blocks are installed on the top of the water tank cover, close to the positioning plate installed on the top of the water tank cover. Baffles and scrapers are installed at the bottom of the support shaft, with the bottom of the baffles and scrapers close to the positioning plate. There is a rectangular feed port below the baffles and scrapers. The belt is installed in the middle of the support shaft. Multiple neatly arranged small holes are provided on the belt. As the belt rotates, the small holes carry the dust suppressant from the dust suppressant storage box to the feed port. The baffles prevent the dust suppressant from being thrown out due to the belt speed. The scrapers can scrape off the residual dust suppressant carried in the small holes of the belt.

[0014] The stirring rod is connected to the corresponding stirring motor via a coupling and a stirring connector. The stirring motor shaft has a bayonet for connecting to the coupling. The top of the stirring rod has a stirring interface for nesting with the stirring connector. Preferably, the stirring rod and the streamlined fan blades are made of hard plastic, while the stirring interface is made of elastic plastic, which reduces the burden on the stirring motor and facilitates cleaning.

[0015] The left and right stirring motors, the left and right inlet stepper motors, the belt system, the water pump, the left and right outlet stepper motors are all connected to the controller via conduits and receive signals from the controller. The left and right level gauges are both connected to the level monitor via conduits and transmit signals to the level monitor. The level monitor and the dust concentration monitor are both connected to the controller via conduits and transmit signals to the controller.

[0016] The liquid level monitor can be set with a liquid level threshold to control the water volume in the tank. It processes the liquid level information transmitted by the left and right liquid level gauges into signals of 0, 0-1, and 1, respectively, and transmits them to the controller. The dust concentration monitor can be set with multiple dust concentration thresholds. When a certain threshold is reached, it transmits a signal to the controller to control the pumping pressure of the water pump.

[0017] The controller has a water pump switch button, a control system switch button, a stirring motor switch button, and a belt speed regulator. The controller controls the belt speed and the operating status of the water pump, the control system, and the stirring motor. The control system includes the controller controlling the direction of the stepper motor and the direction of the belt. The stepper motor has only two directions: controlling the valve to open and controlling the valve to close. The belt can turn left or right, and the belt speed can also be adjusted via the belt speed regulator. The stirring motor is controlled to be turned on or off via a stirring motor switch button. Specifically, the left stirring motor rotates clockwise, and the right stirring motor rotates counterclockwise. The water pump is controlled to be turned on or off via a water pump switch button, and the controller can adjust the water pump pressure.

[0018] The control system switch button is a multi-functional spring-loaded rotary button with pressing, spring-loaded, and rotating operation characteristics. In use, pressing the control system switch button turns on the control system; releasing the button automatically springs back to its original position. While pressed, rotating the button left or right controls the control system to perform a specific operation; releasing the button automatically returns it to its original position. With the control system on, pressing the control system switch button turns it off. Furthermore, in the off state, the left and right inlet stepper motors are in a closed valve state, while the left and right outlet stepper motors are in an open valve state, and the belt is stopped. In the on state, the control system receives data from the level monitor. The system sends signals to control the working status of the stepper motor and belt. When the control system switch button is rotated to the left, the control system performs the following fixed operations: the belt rotates to the left, the left inlet stepper motor opens the valve, the right inlet stepper motor closes the valve, the left outlet stepper motor opens the valve, and the right outlet stepper motor closes the valve. When the control system switch button is rotated to the right, the controller performs the following fixed operations: the belt rotates to the right, the left inlet stepper motor closes the left inlet valve, the right inlet stepper motor opens the right inlet valve, the left outlet stepper motor closes the left outlet valve, and the right outlet stepper motor opens the right outlet valve.

[0019] A method for using an intelligent dust suppressant adding and spraying device includes the following steps:

[0020] S1: The worker adds the required dust suppressant to the dust suppressant storage tank, connects the water inlet pipe to power on the liquid level monitor, controller, and dust concentration monitor, and then sets the liquid level threshold, belt speed, and multiple dust concentration thresholds according to the mixing ratio of dust suppressant and water.

[0021] S2: Press the control system switch button. The controller receives the signal from the liquid level monitor and then transmits it to the control system. The control system controls the working status of the stepper motor and belt. Press the agitator motor switch button to start the agitator motor.

[0022] S3: After the left water tank reaches the liquid level threshold, press the water pump switch button to start the water pump, which will transport the dust suppressant solution in the water tank to the fog cannon to complete the spraying. When the dust concentration monitor reaches a certain dust concentration threshold, it will transmit a signal to the controller. Then the controller will adjust the water pump pressure to further adjust the spraying rate of the fog cannon.

[0023] S4: After the water pump is started, the intelligent dust suppressant addition and spraying device enters the automatic control state. If you want to stop the operation of the device, disconnect the water inlet pipe, and then press the control system switch button, the water pump switch button, and the stirring motor switch button in sequence. Then, disconnect the power to the liquid level monitor, the controller, and the dust concentration monitor.

[0024] In step S1 of this invention, the amount of dust suppressant added to the dust suppressant storage tank is sufficient to supply the required amount of dust suppressant for multiple water tanks. Preferably, by adjusting the belt speed using a belt speed regulator, the required amount of water and dust suppressant in the water tank is added precisely when the dust suppressant solution in the water tank reaches the liquid level threshold. The further setting of the belt speed can be calculated using the following formula:

[0025]

[0026] In the formula: a is the required mixing ratio (mass ratio) of dust suppressant and water;

[0027] d represents the spacing between the holes in each vertical row on the belt;

[0028] ρ2 is the density of water;

[0029] Q1 is the inlet flow rate;

[0030] n is the number of holes in each vertical row on the belt;

[0031] ρ1 is the density of the dust suppressant;

[0032] V1 is the volume of the small hole on the belt.

[0033] Compared with the prior art, the present invention has at least the following advantages:

[0034] (1) This invention addresses the problem of inaccurate control of water volume and dust suppressant dosage in traditional dust suppression devices. By installing a level gauge inside the water tank and using a level monitor to monitor the liquid level in real time and transmit signals to the control system, the water volume in the tank can be accurately controlled. Furthermore, a perforated belt is used to transport the dust suppressant, ensuring precise control of the dust suppressant dosage in the tank. Simultaneously, the dust suppressant and water are added to the tank in the required amounts, greatly improving production accuracy, avoiding material waste, and making it more economical and environmentally friendly. For different types of dust suppressants requiring different amounts, the belt speed can be adjusted to ensure that the dust suppressant and water are added to the tank in the required amounts simultaneously, thus broadening its applicability.

[0035] (2) The present invention uses an intelligent control system, which is easy to operate and has clear control logic. The system can automatically stop or start according to the liquid level change, saving energy and improving the service life of the equipment. The intelligent control system of the present invention greatly reduces operating errors and improves the safety of the system.

[0036] (3) The different stirring directions of the stirring fan blades in the left and right water tanks of the present invention improve the stability of the system, reduce the risk of violent fluctuations in the device, and reduce safety hazards; at the same time, the streamlined structure and small hole structure of the fan blades improve the solution mixing efficiency, reduce flow resistance, reduce the burden on the stirring motor, and save energy.

[0037] (4) The present invention is also equipped with a dust concentration monitoring device to monitor the dust concentration at the location of the device in real time, and dynamically adjust the water pump pressure within the set threshold range to adjust the spraying rate of the fog cannon, save water resources, and improve dust removal efficiency. Attached Figure Description

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the bottom structure of the present invention;

[0040] Figure 3 This is a schematic diagram of the back of the bottom structure of the present invention;

[0041] Figure 4 This is a schematic diagram of the monitoring structure and spraying structure of the present invention;

[0042] Figure 5 This is a perspective view of the water tank of the present invention;

[0043] Figure 6 This is a schematic diagram of the belt system of the present invention;

[0044] Figure 7 This is a schematic diagram of the valve structure of the present invention;

[0045] Figure 8 This is a schematic diagram of the stirring device of the present invention;

[0046] Figure 9 This is the control logic table for the liquid level monitoring signal and control system of the present invention.

[0047] In the diagram: 1. Support plate, 2. Left water tank, 3. Right water tank, 4. Water tank cover, 5. Fog cannon, 6. Left mixing motor, 7. Right mixing motor, 8. Belt system, 81. Belt, 82. Support shaft, 83. Baffle, 84. Positioning plate, 85. Scraper, 86. Mounting block, 87. Feed inlet, 9. Dust suppressant storage tank, 10. Left inlet valve, 11. Right inlet valve, 12. Left inlet stepper motor, 13. Right inlet stepper motor, 14. Water inlet pipe, 15. Dust concentration monitor, 16. Controller, 161. Water pump switch button, 162. Control system switch button, 163. Mixing motor switch button 164. Button, Belt speed regulator, 17. Liquid level monitor, 18. Conduit, 19. Nozzle, 20. Adjustment device, 21. Support rod, 22. Rotary disc, 23. Stepper motor for left outlet, 24. Stepper motor for right outlet, 25. Valve for left outlet, 26. Valve for right outlet, 27. T-connector, 28. Left outlet, 29. Right outlet, 30. Water pump, 31. Soft water pipe, 32. Bottom of water tank, 33. Streamlined fan blade, 34. Stirring rod, 341. Bayonet, 342. Coupling, 343. Stirring joint, 344. Stirring interface, 35. Small hole, 36. Left liquid level gauge, 37. Right liquid level gauge. Detailed Implementation

[0048] The invention will now be further described with reference to the accompanying drawings.

[0049] like Figure 1 As shown, an intelligent dust suppressant addition and spraying device includes a support plate 1, a left water tank 2, a right water tank 3, a water tank cover plate 4, and a fog cannon 5. The left water tank 2 and the right water tank 3 have the same structure and are installed side by side on the top of the support plate 1. The water tank cover plate 4 is installed on the top of the left water tank 2 and the right water tank 3.

[0050] like Figure 1 and Figure 4 As shown, the fog cannon 5 is movably mounted on the upper surface of the support plate 1 via a support component. The support component includes a support frame 21, a rotating disk 22, and an adjustment device 20. The rotating disk 22 is mounted on the upper surface of the support plate 1, and its adjustment angle is 0 to 180°, allowing the fog cannon 5 to be adjusted left and right to expand its spray range. The support frame 21 consists of a bottom support rod and two side support rods. The bottom support rod is mounted on the rotating disk 22, and the top ends of the two side support rods are connected to the circumferential sidewalls of the fog cannon 5. The fog cannon 5 is mounted on the support frame 21, and its vertical spray range is expanded by adjusting the fog cannon 5 up and down via the adjustment device 20 installed on the outer side of the top of the two side support rods, with an adjustment angle of 0 to 180°. Multiple nozzles 19 are installed on the side of the fog cannon 5 away from the right water tank 3.

[0051] like Figure 1 and Figure 5 As shown, a left stirring motor 6 for controlling the stirring device in the left water tank 2 and a right stirring motor 7 for controlling the stirring device in the right water tank 3 are installed on the top of the water tank cover plate 4. The left stirring motor 6 drives the corresponding left stirring device to rotate clockwise, and the right stirring motor 7 drives the corresponding right stirring device to rotate counterclockwise. A left inlet stepper motor 12 and a left inlet valve 10 for controlling the water inlet of the left water tank 2, and a right inlet stepper motor 13 and a right inlet valve 11 for controlling the water inlet of the right water tank 3 are installed on the top of the water tank cover plate 4. A water inlet pipe 14 is installed on the upper part of the water tank cover plate 4 and is connected to the left inlet valve 10 and the right inlet valve 11 through a pipeline. The water inlet pipe 14 is used to supply water to the left water tank 2 and the right water tank 3.

[0052] A dust concentration monitor 15, a controller 16, and a liquid level monitor 17 are installed on the side of the left water tank 2 and the right water tank 3 near the inlet pipe 14. The dust concentration monitor 15 is connected to the controller 16 via a conduit 18, and the liquid level monitor 17 is also connected to the controller 16 via a conduit 18. The dust concentration monitor 15 and the liquid level monitor 17 transmit signals to the controller 16 via the conduit 18. The liquid level monitor 17 of this invention can be set with a liquid level threshold to control the water volume of the left and right water tanks. It processes the liquid level information transmitted by the left liquid level gauge 36 and the right liquid level gauge 37 into signals of 0, 0-1, and 1, respectively, and transmits them to the controller 16. The dust concentration monitor 15 of this invention can be set with multiple dust concentration thresholds. When a certain threshold is reached, it transmits a signal to the controller 16 to control the pumping pressure of the water pump 30.

[0053] like Figure 2 and Figure 3 As shown, the present invention has a left water outlet 28 and a right water outlet 29 installed at the bottom of the support plate 1. The left water outlet 28 is connected to the left water outlet valve 25 controlled by the left water outlet stepper motor 23, and the right water outlet 29 is connected to the right water outlet valve 26 controlled by the right water outlet stepper motor 24. The two symmetrical interfaces of the three-way connector 27 are respectively installed on the left water outlet valve 25 and the right water outlet valve 26, and the other interface is installed on the water pump 30. The other interface of the water pump 30 is connected to the soft water pipe 31, which is connected to the fog cannon 5. The water pump 30 delivers the dust suppressant solution in the water tank to the fog cannon 5, and then completes the spraying.

[0054] like Figure 1 and Figure 6As shown, it also includes a belt system 8 installed on the upper surface of the water tank cover 4. The belt system 8 is a mirror-symmetrical structure with the left water tank 2 and the right water tank 3 as references. The dust suppressant storage tank 9 is installed above the belt system 8 via the support shaft 82 of the belt system 8, and the outlet of the dust suppressant storage tank 9 is in contact with the belt 81 of the belt system 8. The dust suppressant passing through the belt 81 enters the left water tank 2 and the right water tank 3 respectively through the inlet 87 on the upper surface of the water tank cover 4. The belt system 8 includes two inlets 87 symmetrical about the connecting surfaces of the left water tank 2 and the right water tank 3, and four positioning plates 84 installed on the upper surface of the water tank cover 4. The upper surface of plate 4 is horizontally adjacent to four mounting blocks 86 of positioning plate 84, four support shafts 82 are vertically mounted on the mounting blocks 86, and a belt 81 with multiple neatly arranged small holes is mounted on the support shafts 82. As the belt 81 rotates, the small holes carry the dust suppressant from the outlet of the dust suppressant storage box 9 to the inlet 87. There are also two baffles 83 and scrapers 85 mounted on the bottom of the support shafts 82 and adjacent to the top of the positioning plate 84, which are symmetrical about the connecting surfaces of the left water tank 2 and the right water tank 3. The baffles 83 prevent the dust suppressant from being thrown out due to the belt speed, and the scrapers 85 can scrape off the residual dust suppressant carried in the small holes of the belt.

[0055] like Figure 5 and Figure 8 As shown, the bottom 32 of the two water tanks is concave. The left water tank 2 houses the left level gauge 36, and the right water tank 3 houses the right level gauge 37. The left level gauge 36 and the right level gauge 37 are connected to the level monitor 17 via conduits 18 and both transmit signals to the level monitor 17. Inside both the left water tank 2 and the right water tank 3, there are stirring rods 34 with the same structure. Each stirring rod 34 has two streamlined fan blades 33, each with multiple small holes 35. The stirring rods 34 are connected to the stirring motor via a coupling 342 and a stirring connector 343. The stirring motor shaft has a bayonet 341 that connects to the coupling 342. The top of the stirring rod 34 has a stirring interface 344 that nests with the stirring connector 343. Preferably, the stirring rods 34 and the streamlined fan blades 33 are made of hard plastic, while the stirring interface 344 is made of elastic plastic to reduce the burden on the stirring motor and facilitate cleaning.

[0056] The controller 16 of the present invention has a water pump switch button 161, a control system switch button 162, a stirring motor switch button 163, and a belt speed regulator 164. The controller 16 controls the speed of the belt 81 and the working status of the water pump 30, the control system, the left stirring motor 6, and the right stirring motor 7. The control system includes a controller 16 that controls the left inlet stepper motor 12, right inlet stepper motor 13, left outlet stepper motor 23, and right outlet stepper motor 24 to rotate, and controls the belt 81 to rotate. Furthermore, the stepper motors involved in this invention (including the left inlet stepper motor 12, right inlet stepper motor 13, left outlet stepper motor 23, and right outlet stepper motor 24) have only two rotation directions: controlling the corresponding valve to open and controlling the corresponding valve to close (the left inlet stepper motor 12 controls the left inlet valve 10 to open or close, the right inlet stepper motor 13 controls the right inlet valve 11 to open or close, the left outlet stepper motor 23 controls the left outlet valve 25 to open or close, and the right outlet stepper motor 24 controls the right outlet valve 26 to open or close). The belt 81 can rotate left or right, and the belt speed can also be adjusted by the belt speed regulator 164. The left stirring motor 6 and the right stirring motor 7 are controlled to be turned on or off via stirring motor switch button 163. Specifically, the left stirring motor 6 rotates clockwise, and the right stirring motor 7 rotates counterclockwise. The water pump 30 is controlled to be turned on or off via water pump switch button 161, and the controller 16 can adjust the pumping pressure of the water pump 30. The control system switch button 162 of this invention is a multi-functional spring-loaded rotary button with pressing, spring-loaded, and rotating operation characteristics. In use, pressing the control system switch button 162 turns on the control system, and the button automatically springs back to its original position after being released. In the pressed state, rotating the control system switch button 162 to the left or right controls the control system to perform a specific operation, and it automatically returns to its original position after being released. In the control system open state, pressing the control system switch button 162 turns off the control system. Furthermore, when the control system is in the off state, the left inlet stepper motor 12 and the right inlet stepper motor 13 are in the closed valve state, the left outlet stepper motor 23 and the right outlet stepper motor 24 are in the open valve state, and the belt 81 is in the stopped state; when the control system is in the open state, it receives the signal transmitted by the liquid level monitor 17, thereby controlling the working state of the stepper motors and the belt 81.When the control system switch button 162 is rotated to the left, the control system performs the following fixed operations: belt 81 rotates to the left, left inlet stepper motor 12 opens left inlet valve 10, right inlet stepper motor 13 closes right inlet valve 11, left outlet stepper motor 23 opens left outlet valve 25, and right outlet stepper motor 24 closes right outlet valve 26; when the control system switch button 162 is rotated to the right, the controller 16 performs the following fixed operations: belt 81 rotates to the right, left inlet stepper motor 12 closes left inlet valve 10, right inlet stepper motor 13 opens right inlet valve 11, left outlet stepper motor 23 closes left outlet valve 25, and right outlet stepper motor 24 opens right outlet valve 26.

[0057] like Figure 7 As shown, the stepper motor and valves mentioned in this invention are all of this type. The left inlet valve 10, the right inlet valve, the left outlet valve 25, and the right outlet valve 26 are all ball valves. The stepper motor controls the direction of the ball to control the water inlet and outlet.

[0058] like Figure 9 As shown in the table, the control system's response to different level gauge signals is illustrated. The "Level Gauge Transmission Signal" and "Control System Response" sections in the figure demonstrate the control system's response to different level gauge signals. The left level gauge 36 and right level gauge 37 represent the liquid level states in the left water tank 2 and right water tank 3, respectively. The signals transmitted by the left level gauge 36 and right level gauge 37 through the level monitor 17 can be 0 (no solution), 0-1 (solution in a changing state), or 1 (solution reaches a threshold state). When the control system is off, the belt 81 and all stepper motors of this invention remain in their default states. When the control system is on, the level monitor 17 transmits the liquid level signal to the control system, which then responds by controlling the operating state of the belt 81 and all stepper motors. Different combinations of liquid level signals trigger different operations in the control system.

[0059] A method for using an intelligent dust suppressant adding and spraying device includes the following steps:

[0060] S1: The worker adds the dust suppressant to be used into the dust suppressant storage box 9, connects the water inlet pipe 14, and simultaneously powers on the liquid level monitor 17, controller 16, and dust concentration monitor 15. Then, according to the mixing ratio of dust suppressant and water, the liquid level threshold, belt speed, and multiple dust concentration thresholds are set.

[0061] S2: Press the control system switch button 162. The controller 16 receives the signal transmitted by the liquid level monitor 17 and then transmits it to the control system. The control system controls the working status of the left inlet stepper motor 12, the right inlet stepper motor 13, the left outlet stepper motor 23, the right outlet stepper motor 24, and the belt 81. Press the stirring motor switch button 163 to start the left stirring motor 6 and the right stirring motor 7.

[0062] S3: After the left water tank 2 reaches the liquid level threshold, press the water pump switch button 161 to start the water pump 30, and transport the dust suppressant solution in the left water tank 2 to the fog cannon 5 to complete the spraying. When the dust concentration monitor 15 reaches a certain dust concentration threshold, it transmits the real-time dust signal to the controller 16. Then the controller 16 adjusts the water pumping pressure of the water pump 30 to further adjust the spraying rate of the fog cannon 5.

[0063] S4: After the water pump 30 is started, the intelligent dust suppressant addition and spraying device enters the automatic control state. If you want to stop the operation of the device, disconnect the water inlet pipe 14, and then press the control system switch button 162, the water pump switch button 161, and the stirring motor switch button 163 in sequence. Then, disconnect the power to the liquid level monitor 17, the controller 16, and the dust concentration monitor 15 (after the right water tank 3 reaches the liquid level threshold, perform the same operation as above).

[0064] In step S1 of this invention, the amount of dust suppressant added to the dust suppressant storage tank 9 is sufficient to meet the amount of dust suppressant required for multiple water tanks. Preferably, by adjusting the speed of the belt 81 using the belt speed regulator 162, the required amount of water and dust suppressant in the water tank is just added when the dust suppressant solution in the water tank reaches the liquid level threshold. The further setting of the belt 81 speed can be calculated according to the following formula:

[0065]

[0066] In the formula: a is the required mixing ratio (mass ratio) of dust suppressant and water;

[0067] d represents the spacing between the holes in each vertical row on the belt;

[0068] ρ2 is the density of water;

[0069] Q1 is the inlet flow rate;

[0070] n is the number of holes in each vertical row on the belt;

[0071] ρ1 is the density of the dust suppressant;

[0072] V1 is the volume of the small hole on the belt.

[0073] The intelligent dust suppressant adding and spraying device of the present invention may encounter the following special situations during use:

[0074] (1) Stop using the water tank after all the dust suppressant solution has been sprayed out.

[0075] Assume that when the system is about to stop, the left water tank 2 is full of dust suppressant solution, and the dust suppressant solution in the right water tank 3 is being transported by the water pump 30 through the flexible water pipe 31 to the fog cannon 5 for spraying. The worker manually disconnects the water inlet pipe 14 and then presses the control system switch button 162 to shut down the control system. The belt and all stepper motors return to their default states. Due to the principle of communicating vessels, the left water tank 2 and the right water tank 3 will maintain the same liquid level, and the water pump 30 will not be turned off, continuing to transport the solution until both water tanks are sprayed.

[0076] (2) Prepare the location of the mobile device

[0077] This device is vehicle-mounted, so its location can be changed simply by moving the vehicle. Assume that before moving, the left water tank 2 is full of dust suppressant solution, and the dust suppressant solution in the right water tank 3 is being transported by the water pump 30 through the flexible water pipe 31 to the fog cannon 5 for spraying. After the worker completes step S4, the device can be moved. After moving to the designated location, the worker executes steps S1, S2, and S3. However, due to the principle of communicating vessels, the liquid level transmission signal is (0~1, 0~1), and the control system has no control response under this signal. Therefore, to restart the automatic control system, the operator only needs to turn the control system switch button 162, either left or right, and the automatic control system will restart.

[0078] In summary, this invention is easy to operate and has clear control logic. The device can be automated through just a few simple steps. At the same time, the automated control can achieve precise dosage, avoid material waste, greatly improve production accuracy, and has significant environmental and economic benefits.

Claims

1. An intelligent dust suppressant addition and spraying device, comprising a support plate (1), a left water tank (2), a right water tank (3), a water tank cover (4), and a fog cannon (5), characterized in that, The left water tank (2) and the right water tank (3) have the same structure and are installed side by side on the top of the support plate (1). The water tank cover plate (4) is installed on the top of the left water tank (2) and the right water tank (3). The fog cannon (5) is movably mounted on the upper surface of the support plate (1) via a support component, and multiple nozzles (19) are installed on the side of the fog cannon (5) away from the right water tank (3). The top of the water tank cover (4) is equipped with a left stirring motor (6), a right stirring motor (7), a left inlet valve (10), a right inlet valve (11), a left inlet stepper motor (12), and a right inlet stepper motor (13). The left stirring motor (6) drives the corresponding stirring device to rotate clockwise, and the right stirring motor (7) drives the corresponding stirring device to rotate counterclockwise. The water inlet pipe (14) is installed on the upper part of the water tank cover (4) and is connected to the left inlet valve (10) and the right inlet valve (11) through the pipeline respectively. The left water tank (2) and the right water tank (3) are equipped with a dust concentration monitor (15), a controller (16) and a liquid level monitor (17) on the side near the water inlet pipe (14). The dust concentration monitor (15) is connected to the controller (16) through a conduit (18), and the liquid level monitor (17) is connected to the controller (16) through a conduit (18). The bottom of the support plate (1) is equipped with a left outlet stepper motor (23), a right outlet stepper motor (24), a left outlet (28), and a right outlet (29). The left outlet valve (25) is installed on the left outlet (28), and the right outlet valve (26) is installed on the right outlet (29). The two symmetrical interfaces of the three-way connector (27) are installed on the left outlet valve (25) and the right outlet valve (26) respectively. The other interface is connected to the water pump (30). The other interface of the water pump (30) is equipped with a soft water pipe (31), which is connected to the fog cannon (5) through the soft water pipe (31). It also includes a belt system (8) installed on the upper surface of the water tank cover (4). The belt system (8) is a mirror-symmetrical structure with the left water tank (2) and the right water tank (3) as references. The dust suppressant storage box (9) is installed above the belt system (8) through the support shaft (82) of the belt system (8), and the outlet of the dust suppressant storage box (9) is in contact with the belt (81) of the belt system (8). The dust suppressant passing through the belt (81) enters the left water tank (2) and the right water tank (3) respectively through the feed port (87) on the upper surface of the water tank cover (4). The bottom (32) of the two water tanks is concave. The left water tank (2) is equipped with a left level gauge (36) and the right water tank (3) is equipped with a right level gauge (37). The two water tanks are equipped with the same stirring rod (34). Each stirring rod (34) is equipped with two streamlined fan blades (33). The streamlined fan blades (33) have multiple small holes (35). The supporting components include a support frame (21), a rotating disk (22), and an adjustment device (20). The rotating disk (22) is installed on the upper surface of the support plate (1). The adjustment angle of the rotating disk (22) is 0~180°, which can adjust the fog cannon (5) left and right. The support frame (21) consists of a bottom support rod and two side support rods. The bottom support rod is installed on the rotating disk (22). The top of the two side support rods is connected to the circumferential side wall of the fog cannon (5). The fog cannon (5) is adjusted up and down by the adjustment device (20) installed on the outer side of the top of the two side support rods. The adjustment angle is 0~180°. The belt system (8) also includes a baffle (83), a scraper (85), and a mounting block (86). The mounting block (86) is installed on the top of the water tank cover (4) and is close to the positioning plate (84) installed on the top of the water tank cover (4). The bottom of the support shaft (82) is equipped with a baffle (83) and a scraper (85). The bottom of the baffle (83) and the scraper (85) is close to the positioning plate (84). There is a rectangular feed port (87) below the baffle (83) and the scraper (85). The belt (81) is installed in the middle of the support shaft (82). There are multiple neatly arranged small holes on the belt (81). As the belt (81) rotates, the small holes carry the dust suppressant from the dust suppressant storage box (9) to the feed port (87). The baffle (84) prevents the dust suppressant from being thrown out due to the speed of the belt (81). The scraper (85) can scrape off the residual dust suppressant carried in the small holes of the belt (81). The controller (16) has a water pump switch button (161), a control system switch button (162), a stirring motor switch button (163), and a belt speed regulator (164). The controller (16) controls the speed of the belt (81) and the working status of the water pump (30), the control system, and the stirring motor. The control system includes the controller (16) controlling the direction of the stepper motor and the direction of the belt. The stepper motor has only two directions, namely controlling the valve to open and controlling the valve to close. The belt (81) can turn left or right, and the belt speed can also be adjusted by the belt speed regulator (164). The stirring motor is controlled to open or close by the stirring motor switch button (163). The left stirring motor (6) rotates clockwise, and the right stirring motor (7) rotates counterclockwise. The water pump (30) is controlled to open or close by the water pump switch button (161). The controller (16) can adjust the pumping pressure of the water pump (30).

2. The intelligent dust suppressant adding and spraying device according to claim 1, characterized in that, The stirring rod (34) is connected to the corresponding stirring motor via a coupling (342) and a stirring connector (343). The stirring motor shaft has a bayonet (341) that connects to the coupling (342). The stirring rod (34) has a stirring interface (344) at the top that is nested with the stirring connector (343). The stirring rod (34) and the streamlined fan blade (33) are both made of hard plastic, while the stirring interface (344) is made of elastic plastic.

3. The intelligent dust suppressant adding and spraying device according to claim 1, characterized in that, The left stirring motor (6), right stirring motor (7), left inlet stepper motor (12), right inlet stepper motor (13), belt system (8), water pump (30), left outlet stepper motor (23), and right outlet stepper motor (24) are all connected to the controller (16) through conduit (18) and will receive signals transmitted by the controller (16); the left level gauge (36) and right level gauge (37) are all connected to the level monitor (17) through conduit (18) and will transmit signals to the level monitor (17); the level monitor (17) and dust concentration monitor (15) are all connected to the controller (16) through conduit (18) and will transmit signals to the controller (16).

4. The intelligent dust suppressant adding and spraying device according to claim 1, characterized in that, The liquid level monitor (17) can set a liquid level threshold, control the water volume of the water tank, and process the liquid level information transmitted by the left liquid level gauge (36) and the right liquid level gauge (37) into signals of 0, 0~1 and 1 respectively and transmit them to the controller (16); the dust concentration monitor (15) can set multiple dust concentration thresholds, and transmit a signal to the controller (16) when a certain threshold is reached, thereby controlling the pumping pressure of the water pump (30).

5. The intelligent dust suppressant adding and spraying device according to claim 1, characterized in that, The control system switch button (162) is a multi-functional spring-loaded rotary button. When in use, pressing the control system switch button (162) turns on the control system, and the button automatically springs back to its original position after releasing the button. In the pressed state, rotating the button to the left or right controls the control system to perform a fixed operation, and it automatically returns to its original position after releasing the button. In the control system open state, pressing the control system switch button (162) turns off the control system. In the closed state, the left inlet stepper motor (12) and the right inlet stepper motor (13) are in the closed valve state, the left outlet stepper motor (23) and the right outlet stepper motor (24) are in the open valve state, and the belt (81) is in the stopped state. In the open state, the control system receives the signal transmitted by the liquid level monitor (17) to control the stepper motor. Working status of the inlet motor and belt (81); When the control system switch button (162) is rotated to the left, the fixed operation performed by the control system is that the belt (81) turns to the left, the left inlet stepper motor (12) opens the valve, the right inlet stepper motor (13) closes the valve, the left outlet stepper motor (23) opens the valve, and the right outlet stepper motor (24) closes the valve; When the control system switch button (162) is rotated to the right, the fixed operation performed by the controller (16) is that the belt (81) turns to the right, the left inlet stepper motor (12) closes the left inlet valve (10), the right inlet stepper motor (13) opens the right inlet valve (11), the left outlet stepper motor (23) closes the left outlet valve (25), and the right outlet stepper motor (24) opens the right outlet valve (26).

6. A method of using the intelligent dust suppressant adding and spraying device according to claim 1, characterized in that, Includes the following steps: S1: The worker adds the dust suppressant to be used into the dust suppressant storage box (9), connects the water inlet pipe (14), and powers on the liquid level monitor (17), controller (16), and dust concentration monitor (15). Then, according to the mixing ratio of dust suppressant and water, the liquid level threshold, belt speed, and multiple dust concentration thresholds are set. S2: Press the control system switch button (162), the controller (16) receives the signal transmitted by the liquid level monitor (17) and then transmits it to the control system. The control system controls the working status of the stepper motor and belt. Press the stirring motor switch button (163) to start the left stirring motor (6) and the right stirring motor (7). S3: After the left water tank (2) reaches the liquid level threshold, press the water pump switch button (161) to start the water pump (30) and transport the dust suppressant solution in the water tank to the fog cannon (5) to complete the spraying. When the dust concentration monitor (15) reaches a certain dust concentration threshold, it transmits the signal to the controller (16). Then the controller (16) adjusts the water pumping pressure of the water pump (30) to further adjust the spraying rate of the fog cannon. S4: After the water pump (30) is started, the intelligent dust suppressant addition and spraying device enters the automatic control state. If the device is to be stopped, disconnect the water inlet pipe (14), and then press the control system switch button (162), the water pump switch button (161), and the stirring motor switch button (163) in sequence. Then, disconnect the liquid level monitor (17), the controller (16), and the dust concentration monitor (15).

7. The method of using the intelligent dust suppressant adding and spraying device according to claim 5, characterized in that, In step S1, the amount of dust suppressant added to the dust suppressant storage tank (9) is sufficient to meet the amount of dust suppressant required for multiple water tanks. By adjusting the belt speed regulator (164) to make the dust suppressant solution in the water tank reach the liquid level threshold, the required water and dust suppressant in the water tank are just added. The belt speed setting is calculated according to the following formula: In the formula: The required mixing ratio of dust suppressant and water; The spacing between the holes in each vertical row on the belt; The density of water; This refers to the inlet flow rate; This refers to the number of holes in each vertical row on the belt. The density of the dust suppressant; Let V be the volume of the small hole on the belt.

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