A system and method for rapid treatment of metal pollution in rivers

Abstract

This invention provides a system and method for rapidly treating metal pollution in rivers, belonging to the field of wastewater treatment technology. It includes an automatic chemical spraying assembly mounted on the upper part of a water source, a chemical mixing assembly and an air distribution assembly connected to the automatic chemical spraying assembly. The chemical mixing assembly mixes the remediation agent, the air distribution assembly collects external air, and then the mixed agent and air are thoroughly mixed in a temporary storage tank. The mixture is then evenly sprayed into the water body at the water source by an automatic dosing unit. Simultaneously, the automatic dosing unit can automatically compress the agent under the action of water flow and spray it into the polluted water at various depths, ensuring uniform mixing of the agent with the polluted water. When the water flow at the water source is static, the agent can also be automatically compressed and sprayed by a micro-drive motor, reducing reliance on manual labor and automatically adjusting the agent spraying method according to the water flow conditions, thus improving the system's flexibility and adaptability.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically a system and method for rapidly treating metal pollution in rivers. Background Technology

[0002] River pollutants include organic matter, nitrogen and phosphorus compounds, heavy metals, and pathogens. These pollutants can lead to eutrophication and a decline in biodiversity.

[0003] Heavy metal pollution is characterized by its persistence, bioaccumulation, and toxicity in the environment. These characteristics make it difficult for heavy metals to degrade once they enter water bodies, and they can accumulate through the food chain, ultimately affecting human health. For example, long-term consumption of water containing heavy metals may lead to health problems such as damage to the nervous system and abnormal liver and kidney function. Therefore, there is an urgent need for a system for rapidly treating metal pollution in rivers.

[0004] Patent CN215326985U discloses a fully automatic dosing device for river treatment chemicals, including a bridge body and a chemical tank. The bridge body consists of a bridge foundation, piers, and a bridge deck. The chemical tank is installed on the lower end of the bridge deck. A piston is slidably connected inside the chemical tank. A rotating shaft is located at the center of the piston when viewed from above. A flow velocity detection paddle is located at the lower end of the rotating shaft. A dosing pipe and a dosing pipe are located on the side of the chemical tank. A nozzle is located at the lower end of the dosing pipe, and a dosing hopper is located at the upper end of the dosing pipe. A dosing indicator rod is slidably connected to the upper end of the chemical tank. A first shaft hole is located on the upper and lower ends of the chemical tank, and a second shaft hole is located on the bridge deck. The rotating shaft passes through the first and second shaft holes and is rotatably connected to the chemical tank and the bridge deck. This invention, through the cooperation of the flow velocity detection paddle, rotating shaft, and piston, controls the dosage of chemicals by the water flow velocity, ensuring the uniformity of chemical dosing, thereby greatly improving the effect of river treatment.

[0005] However, the above-mentioned device is only suitable for situations where the water flow velocity is relatively high. When the water flow velocity is insufficient to drive the blades to rotate quickly, so that the piston cannot fully squeeze upwards or cannot squeeze at all, it will result in insufficient addition of chemicals, which will greatly reduce the treatment effect on the river. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a system and method for rapidly treating metal pollution in rivers.

[0007] The technical solution of the present invention is: a system for rapidly treating metal pollution in rivers, comprising an automatic chemical spraying assembly installed at the upper end of a water source, a chemical mixing assembly and an air mixing assembly connected to the automatic chemical spraying assembly;

[0008] The automatic chemical spraying assembly includes a main installation frame perpendicular to the water flow direction of the water source, a temporary storage box located at the upper end of the main installation frame, multiple automatic dosing cylinders located at the lower end of the main installation frame and connected to the temporary storage box through connecting branch pipes, and an automatic dosing unit located in each of the automatic dosing cylinders.

[0009] The automatic dosing unit includes a rotating piston threaded to the inner wall of the automatic dosing cylinder and having a connecting notch at its upper end; a vertical connecting rod connected to the rotating piston at its upper end and extending through the automatic dosing cylinder to the outside at its lower end; a stirring blade at the bottom end of the vertical connecting rod; multiple hollow spray columns located at the bottom end of the automatic dosing cylinder and distributed circumferentially around the periphery of the vertical connecting rod; and a miniature drive motor located at the upper end of the automatic dosing cylinder and connected to a second electromagnetic chuck via a telescopic rod. The inner wall of the connecting notch is provided with a first electromagnetic chuck with a polarity opposite to that of the second electromagnetic chuck. Multiple spray holes are evenly provided on the side wall of the hollow spray columns from top to bottom.

[0010] The drug preparation assembly includes a drug preparation tank, a drug addition pump for connecting the drug preparation tank and a temporary storage tank, and a drug filter located at the outlet of the drug preparation tank.

[0011] The gas distribution assembly includes a gas storage tank connected to a temporary storage box via a connecting pipe, a first air compressor connected to the gas storage tank, and a pressure gauge installed on the gas storage tank.

[0012] Furthermore, the temporary storage box is equipped with a mixing and stirring unit, which includes a horizontal rotating cylinder connected to the inner wall of the temporary storage box on the left and right sides respectively through hollow connecting cylinders, a plurality of sleeve rings evenly distributed from left to right on the outer wall of the horizontal rotating cylinder, a plurality of arc-shaped stirring blocks inclined in the same direction on the outer wall of the sleeve rings along the circumference, a first rotary motor connected to one of the hollow connecting cylinders through a rotating shaft, and a second air compressor connected to the other hollow connecting cylinder through a connecting pipe. A spiral air passage is provided through the arc-shaped stirring block, and the hollow connecting cylinder, the sleeve rings, and the spiral air passage are interconnected with the inside of the sleeve rings.

[0013] Explanation: To prevent denser components in the temporary storage tank from settling to the bottom and to ensure the overall stability and consistency of the drug's properties, a mixing unit is used to agitate it. Simultaneously, air is introduced into the drug via a second air compressor. This air introduction helps break up the drug's stratification, increases the mixing effect, and makes the drug more uniform. During operation, the mixing unit uses a first rotary motor to drive the horizontal rotating cylinder, connecting rings, and arc-shaped stirring blocks to rotate synchronously, agitating the drug in the temporary storage tank. At the same time, the second air compressor introduces external air into the entire horizontal rotating cylinder through a connected hollow connecting cylinder, and then through each connecting ring into the corresponding arc-shaped stirring block. Since each arc-shaped stirring block has a spiral air passage, the air inside the block is sprayed out in a swirling motion and mixed with the drug, generating finer and more uniform bubbles. This increases the gas-liquid contact area, and combined with the rotation of the arc-shaped stirring block itself, enhances the mixing effect and makes the drug more uniform.

[0014] Furthermore, a constant temperature heating ring is provided on the outer wall of the horizontal rotating cylinder and between two adjacent sleeve rings, a constant temperature heating plate is provided on each inner wall of the temporary storage box, and multiple stirring teeth are evenly provided on the side wall of the arc-shaped stirring block.

[0015] Explanation: When stirring the reagent in the temporary storage tank, the reagent is uniformly heated by a constant temperature heating ring and a constant temperature heating plate. At the same time, the movement of swirling bubbles can enhance the heat convection inside the reagent, increase the temperature of the reagent, increase the solubility of the solute in the reagent, thereby reducing the possibility of crystallization, avoiding clogging of the spray holes on the hollow spray column, and improving the overall operational reliability of the system. The stirring teeth on the side wall of the arc-shaped stirring block further improve the uniformity of stirring.

[0016] Furthermore, the temporary storage box is equipped with a gas distribution plate at the connection point with the gas storage tank, and the gas distribution plate is evenly provided with multiple gas distribution holes.

[0017] Note: When the gas in the gas storage tank is introduced into the temporary storage box, the gas is evenly distributed in the form of small bubbles through the gas distribution holes on the gas distribution plate, which increases the contact area between the gas and the agent.

[0018] Furthermore, both the air distribution holes and the openings of the spiral air passages are provided with micro-filter screens, which are made of elastic material.

[0019] Explanation: The micro filter screen prevents solid impurities in the reagent from entering the air distribution holes and spiral air passages, thus avoiding blockage. The micro filter screen is also designed with an elastic structure to buffer the impact of water flow on the reagent during stirring, thereby improving reliability.

[0020] Furthermore, the medicine dispensing box includes a main box body with a cover plate hinged to the upper end, a suspension frame disposed in the main box body and having multiple through ports at the upper end, multiple medicine dispensing inner cylinders located in the main box body and having their upper ends connected to the through ports one by one, a mixing and stirring component disposed in each medicine dispensing inner cylinder, the side wall of the medicine dispensing inner cylinder extending to the outside through a liquid outlet pipe, the liquid outlet pipe being provided with a flow meter, and a sub-cover plate being provided on the cover plate at the position directly above each through port.

[0021] Instructions: Open the sub-cover, add the raw materials required for preparing the reagent to each mixing cylinder, and mix them evenly using the mixing agitator. When adding reagent to the water source, the prepared reagent flows out through the outlet pipe, passes through the reagent filter to remove impurities, and then flows into the temporary storage tank. The same reagent can be prepared in batches through several mixing cylinders, and different types of reagents can also be prepared simultaneously, significantly improving the efficiency of reagent preparation. It is especially suitable for water sources that require large quantities or multiple types of reagents.

[0022] Furthermore, the mixing and stirring component includes a vertical rotating rod with its upper end located inside the drug preparation inner cylinder and its lower end penetrating through the drug preparation inner cylinder and the main box body and extending to the outside; a plurality of rotating gears located at the bottom end of the main box body and whose centers are connected to each of the vertical rotating rods in a one-to-one correspondence; a second rotating motor connected to the center of one of the rotating gears; a plurality of connecting plates distributed circumferentially along the bottom end of the vertical rotating rod; a plurality of spiral heating tubes and a plurality of spiral cooling tubes connected to the connecting plates at their bottom ends and distributed vertically; the plurality of spiral heating tubes and the plurality of spiral cooling tubes are staggered, and adjacent rotating gears mesh with each other.

[0023] Instructions: When using the mixing and stirring components to stir the raw materials required for adding the preparation agent, start the second rotary motor. The second rotary motor drives the corresponding rotating gear to rotate, and the other rotating gears meshing with it also rotate synchronously. At this time, the vertical rotating rods connected to each rotating gear and located in the inner cylinder of the preparation cylinder rotate synchronously. The spiral heating tubes and spiral cooling tubes installed on the outer wall of each vertical rotating rod stir the agent. While achieving the stirring effect, the spiral heating tubes and spiral cooling tubes are turned on or off according to the temperature of the agent in each inner cylinder. When the external ambient temperature causes the agent temperature to be too low, the agent is heated through the spiral heating tubes to prevent the agent from freezing and affecting normal use. At the same time, when the external ambient temperature causes the agent temperature to be too high, the agent is cooled through the spiral cooling tubes to prevent the agent from deteriorating due to excessive temperature.

[0024] Furthermore, the inner wall of the main box is provided with a heat insulation layer, and each dispensing cylinder is equipped with a temperature sensor.

[0025] Explanation: The insulation layer reduces excessive temperature fluctuations in the dispensing cylinder, which could affect the treatment effect. Temperature sensors monitor the temperature of the dispensing cylinder in real time, improving the level of automation.

[0026] This invention also discloses a method for rapidly treating metal pollution in rivers, based on the aforementioned system for rapidly treating metal pollution in rivers, comprising the following steps:

[0027] S1. Install the main frame on both banks of the upstream of the water source to be repaired, so that each vertical connecting rod and hollow spray column extends into the water body. The agent in the dosing tank is extracted by the dosing pump, and after passing through the agent filter to filter impurities, it flows into the temporary storage tank. At the same time, the first air compressor continuously fills the air storage tank with gas, and the pressure is monitored in real time by the pressure gauge. The gas in the air storage tank is then filled into the temporary storage tank.

[0028] S2. After the reagent and gas introduced in step S1 are mixed in the temporary storage tank, they flow through each connecting branch pipe to the automatic dosing cylinder. At this time, under the impact of the water flow, the stirring blades at the bottom of each vertical connecting rod rotate, and drive the rotating piston to rotate through the vertical connecting rod, squeezing the reagent in the automatic dosing cylinder, so that the reagent falls into the hollow spray column, and is evenly sprayed into the water at various depths through each spray hole on the hollow spray column, thereby repairing the water body.

[0029] S3. When the water flow at the water source is still, power is supplied to the first and second electromagnetic chucks to make them adhere and fix. At this time, the micro drive motor is started, which drives the rotating piston to rotate. Since the upper end of the automatic dosing cylinder is connected to the second electromagnetic chuck through the telescopic rod, the rotating piston will move downward and squeeze the agent located at its bottom while rotating, so that the agent falls into the hollow spray column and is evenly sprayed into the water at various depths through the spray holes on the hollow spray column, thereby repairing the water body.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] The system for rapidly treating metal pollution in rivers according to this invention involves batch preparation of the same or various types of chemicals using a chemical mixing component. External air is collected by an air distribution component, and then the prepared chemicals and air are mixed evenly in a storage tank. The mixture is then evenly sprayed into the water source using an automatic dosing unit. Simultaneously, the automatic dosing unit can automatically compress and spray the chemicals into the polluted water at various depths under the influence of water flow, ensuring uniform mixing and preventing localized areas of chemical application while the surrounding area remains untreated, thus improving treatment efficiency. Furthermore, when the water source is still, the automatic dosing unit can also automatically compress and spray the chemicals using a micro-drive motor, reducing reliance on manual labor. It can also automatically adjust the spraying method according to the water flow conditions, ensuring effective distribution of the chemicals regardless of whether the water is flowing or still, thus improving the system's flexibility and adaptability. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the installation structure of the automatic dosing unit of the present invention inside the automatic dosing cylinder;

[0034] Figure 3 This is a schematic diagram of the internal structure of the temporary storage box of the present invention;

[0035] Figure 4 This is a side view of the mounting of the sleeve ring of the present invention on a horizontal rotating cylinder;

[0036] Figure 5 This is a schematic diagram of the air distribution plate of the present invention;

[0037] Figure 6 This is a schematic diagram of the internal structure of the medicine dispensing box of the present invention;

[0038] Figure 7 This is a schematic diagram of the installation structure of the spiral heating tube and spiral cooling tube of the present invention.

[0039] Among them, 1-Automatic pesticide spraying assembly, 10-Main mounting frame, 11-Temporary storage box, 12-Automatic dosing cylinder, 120-Connecting branch pipe, 13-Automatic dosing unit, 130-Connecting notch, 131-Rotating piston, 132-Vertical connecting rod, 133-Stirring blade, 134-Hollow spray column, 135-Micro drive motor, 136-First electromagnetic chuck, 137-Second electromagnetic chuck, 138-Spray hole, 15-Mixing and stirring unit, 150-Hollow connecting cylinder, 151-Horizontal rotating cylinder, 152-Sleeve ring, 153-Arc-shaped stirring block, 1530-Spiral air passage, 1531-Stirring teeth, 154-First rotary motor, 155-Second air compressor, 157-Constant 158-Constant Temperature Heating Plate, 16-Micro Filter Screen, 2-Reagent Preparation Component, 20-Dosage Box, 200-Cover Plate, 201-Main Box, 202-Through Port, 203-Suspension Frame, 204-Dosage Inner Cylinder, 2040-Liquid Outlet Pipe, 2041-Flow Meter, 205-Mixing and Stirring Component, 206-Sub-Cover Plate, 207-Temperature Sensor, 21-Dosing Pump, 22-Reagent Filter, 23-Vertical Rotating Rod, 24-Rotating Gear, 25-Second Rotary Motor, 26-Connecting Plate, 27-Spiral Heating Tube, 28-Spiral Cooling Tube, 3-Gas Distribution Component, 30-Gas Storage Tank, 31-First Air Compressor, 32-Pressure Gauge, 33-Gas Distribution Plate, 330-Gas Distribution Hole. Detailed Implementation

[0040] To further understand the content of the present invention, the present invention will be described in detail below through embodiments.

[0041] Example 1: As Figure 1 , 2 As shown, a system for rapidly treating metal pollution in rivers includes an automatic chemical spraying assembly 1 installed above the water source, a chemical mixing assembly 2 and an air distribution assembly 3 connected to the automatic chemical spraying assembly 1, and a power supply. Rain shelters are provided on the automatic chemical spraying assembly 1, the chemical mixing assembly 2, and the air distribution assembly 3.

[0042] The automatic chemical spraying assembly 1 includes a main installation frame 10 perpendicular to the water flow direction of the water source, a temporary storage box 11 located at the upper end of the main installation frame 10, three automatic dosing cylinders 12 located at the lower end of the main installation frame 10 and connected to the temporary storage box 11 through a connecting branch pipe 120, and an automatic dosing unit 13 located in each automatic dosing cylinder 12.

[0043] The automatic dosing unit 13 includes a rotating piston 131 threaded to the inner wall of the automatic dosing cylinder 12 and having a connecting notch 130 at its upper end; a vertical connecting rod 132 connected to the rotating piston 131 at its upper end and extending through the automatic dosing cylinder 12 to the outside; a stirring blade 133 at the bottom of the vertical connecting rod 132; four hollow spray columns 134 located at the bottom of the automatic dosing cylinder 12 and distributed circumferentially around the vertical connecting rod 132; a micro drive motor 135 located at the upper end of the automatic dosing cylinder 12 and connected to a second electromagnetic chuck 137 via a telescopic rod; a first electromagnetic chuck 136 with the opposite polarity to the second electromagnetic chuck 137 located on the inner wall of the connecting notch 130; and 20 spray holes 138 evenly distributed from top to bottom on the side wall of the hollow spray column 134. The second electromagnetic chuck 137, the micro drive motor 135, and the first electromagnetic chuck 136 all adopt existing technologies.

[0044] like Figure 6 , 7 As shown, the drug preparation assembly 2 includes a drug preparation tank 20, a drug dosing pump 21 for connecting the drug preparation tank 20 and the temporary storage tank 11, and a drug filter 22 located at the outlet of the drug preparation tank 20. The drug dosing pump 21 and the drug filter 22 both adopt existing technologies.

[0045] The air distribution assembly 3 includes an air storage tank 30 connected to a temporary storage box 11 via a connecting pipe, a first air compressor 31 connected to the air storage tank 30, and a pressure gauge 32 installed on the air storage tank 30. The first air compressor 31 and the pressure gauge 32 both adopt existing technologies.

[0046] The dispensing box 20 includes a main body 201 with a cover plate 200 hinged to its upper end, a suspension frame 203 located inside the main body 201 and having three through-holes 202 at its upper end, three dispensing inner cylinders 204 located inside the main body 201 and having their upper ends connected to the through-holes 202 one by one, and a mixing and stirring component 205 located inside each dispensing inner cylinder 204. The side wall of the dispensing inner cylinder 204 extends to the outside through a liquid outlet pipe 2040, and a flow meter 2041 is provided on the liquid outlet pipe 2040. A sub-cover plate 206 is provided on the cover plate 200 at the position directly above each through-hole 202. Opening the sub-cover plate 206... 6. Add the raw materials required for preparing the reagent to each inner cylinder 204 and stir them evenly with the mixing and stirring device 205. When it is necessary to add the reagent to the water source, the reagent prepared in the inner cylinder 204 flows out through the outlet pipe 2040, and after passing through the reagent filter 22 to filter impurities, it flows into the temporary storage tank 11. The same reagent can be prepared in batches through several inner cylinders 204, and different types of reagents can also be prepared at the same time, which significantly improves the efficiency of reagent preparation. It is especially suitable for water sources that require a large amount or multiple reagents. The flow meter 2041 adopts existing technology.

[0047] The mixing and stirring component 205 includes a vertical rotating rod 23 whose upper end is located inside the inner cylinder 204 of the dispensing agent and whose lower end passes through the inner cylinder 204 and the main box 201 and extends to the outside; three rotating gears 24 located at the bottom of the main box 201 and whose centers are connected to each of the vertical rotating rods 23; a second rotating motor 25 connected to the center of one of the rotating gears 24; two connecting plates 26 distributed circumferentially along the bottom end of the vertical rotating rods 23; and a spiral heating tube 27 and a spiral cooling tube 28 connected to the connecting plates 26 at their bottom ends and distributed vertically. The spiral heating tube 27 and the spiral cooling tube 28 are staggered, and adjacent rotating gears 24 mesh with each other. When the mixing and stirring component 205 is used to stir the raw materials required for adding the preparation agent, the second rotating motor 25 is started, which drives the corresponding rotating gear 24 to rotate, and the gears meshing with it rotate. The remaining rotating gears 24 also rotate synchronously. At this time, the vertical rotating rods 23 connected to each rotating gear 24 and located in the inner cylinder 204 of the medicine preparation cylinder rotate synchronously. The spiral heating tubes 27 and spiral cooling tubes 28 installed on the outer wall of each vertical rotating rod 23 stir the medicine. While achieving the stirring effect, the spiral heating tubes 27 and spiral cooling tubes 28 are turned on or off according to the temperature of the medicine in each inner cylinder 204. When the external ambient temperature causes the medicine temperature to be too low, the medicine is heated by the spiral heating tubes 27 to prevent the medicine from freezing and affecting normal use. At the same time, when the external ambient temperature causes the medicine temperature to be too high, the medicine is cooled by the spiral cooling tubes 28 to prevent the medicine from deteriorating due to excessive temperature. The rotating gears 24, the second rotating motor 25, the spiral heating tubes 27 and the spiral cooling tubes 28 all adopt existing technologies.

[0048] The inner wall of the main body 201 is provided with a heat insulation layer, and each dispensing inner cylinder 204 is equipped with a temperature sensor 207. The heat insulation layer can reduce the temperature change of the medicine in the dispensing inner cylinder 204, which may affect the treatment effect. The temperature sensor 207 can detect the temperature of the medicine in the dispensing inner cylinder 204 in real time, thereby improving the level of intelligence. The heat insulation layer material is expanded polystyrene board, and the temperature sensor 207 adopts existing technology.

[0049] The power source uses an existing solar power generation system and is electrically connected to the second electromagnetic chuck 137, the micro drive motor 135, the first electromagnetic chuck 136, the dosing pump 21, the first air compressor 31, the second rotary motor 25, and the temperature sensor 207.

[0050] Example 2: This example differs from Example 1 in that: there are 4 automatic dosing cylinders 12, 8 hollow spray columns 134, 40 spray holes 138 evenly arranged from top to bottom on the side wall of the hollow spray column 134, 4 through holes 202 in the suspension frame 203, 4 inner dosing cylinders 204, 4 rotating gears 24, 4 connecting plates 26 in each inner dosing cylinder 204, and 2 spiral heating tubes 27 and 2 spiral cooling tubes 28 in each inner dosing cylinder 204. The power supply is electrically connected to the spiral heating tubes 27 and the spiral cooling tubes 28.

[0051] Example 3: This example describes a method for rapidly treating metal pollution in rivers, based on a system for rapidly treating metal pollution in rivers as described in Example 1, including the following steps:

[0052] S1. Open the sub-cover 206, add the raw materials required for preparing the medicine to each medicine preparation inner cylinder 204, start the second rotary motor 25, drive the corresponding rotary gear 24 to rotate through the second rotary motor 25, and the other rotary gears 24 meshing with it also rotate synchronously. At this time, the vertical rotary rods 23 connected to each rotary gear 24 and located in the medicine preparation inner cylinder 204 rotate synchronously, and the spiral heating tube 27 and spiral cooling tube 28 installed on the outer wall of each vertical rotating rod 23 stir. At the same time, depending on the temperature of the medicine in each medicine preparation inner cylinder 204, select whether to turn on the spiral heating tube 27 and the spiral cooling tube 28. When the external ambient temperature causes the medicine temperature to be too low, heat the medicine through the spiral heating tube 27. When the external ambient temperature causes the medicine temperature to be too high, cool the medicine through the spiral cooling tube 28.

[0053] S2. Install the main frame 10 on both banks of the upstream of the water source to be repaired, so that each vertical connecting rod 132 and the hollow spray column 134 extend into the water body. The dosing pump 21 extracts the agent from the dosing tank 20, and after filtering impurities through the agent filter 22, it flows into the temporary storage tank 11. At the same time, the first air compressor 31 continuously fills the air storage tank 30 with gas, and the pressure is monitored in real time by the pressure gauge 32. The gas in the air storage tank 30 is then filled into the temporary storage tank 11.

[0054] S3. After the reagent and gas introduced in step S1 are mixed in the temporary storage tank 11, they flow through the connecting branch pipes 120 to the automatic dosing cylinder 12. At this time, under the impact of the water flow, the stirring blades 133 at the bottom of each vertical connecting rod 132 rotate, and drive the rotating piston 131 to rotate through the vertical connecting rod 132, squeezing the reagent in the automatic dosing cylinder 12, so that the reagent falls into the hollow spray column 134, and is evenly sprayed into the water at various depths through the spray holes 138 on the hollow spray column 134, thereby repairing the water body.

[0055] S4. When the water flow at the water source is static, power is supplied to the first electromagnetic chuck 136 and the second electromagnetic chuck 137 to make them adhere and fix. At this time, the micro drive motor 135 is started, which drives the rotating piston 131 to rotate. Since the upper end of the automatic dosing cylinder 12 is connected to the second electromagnetic chuck 137 through the telescopic rod, the rotating piston 131 will move downward and squeeze the agent at its bottom while rotating, so that the agent falls into the hollow spray column 134 and is evenly sprayed into the water body at various depths through the spray holes 138 on the hollow spray column 134, thereby repairing the water body.

[0056] Example 4: This example differs from Example 1 in that: Figure 3 , 4 As shown, the temporary storage box 11 is equipped with a mixing and stirring unit 15. The mixing and stirring unit 15 includes a horizontal rotating cylinder 151 connected to the inner wall of the temporary storage box 11 on the left and right sides respectively through hollow connecting cylinders 150; five sleeve rings 152 evenly distributed from left to right on the outer wall of the horizontal rotating cylinder 151; four arc-shaped stirring blocks 153 inclined in the same direction and arranged circumferentially on the outer wall of the sleeve rings 152; a first rotary motor 154 connected to one of the hollow connecting cylinders 150 through a rotating shaft; and a second air compressor 155 connected to the other hollow connecting cylinder 153 through a connecting pipe. The internal structure of the storage tank 11 is provided with a spiral ventilation channel 1530, a hollow connecting cylinder 150 and a sleeve ring 152, and the spiral ventilation channel 1530 and the sleeve ring 152 are interconnected. In order to prevent the denser components in the medicine in the storage tank 11 from settling to the bottom and to ensure the stability and consistency of the overall properties of the medicine, it is stirred by a mixing and stirring unit 15. At the same time, air is introduced into the medicine by a second air compressor 155. The introduction of air helps to break up the stratification of the medicine, increase the mixing effect, and make the medicine more uniform. The first rotary motor 154 and the second air compressor 155 both adopt existing technologies.

[0057] A constant temperature heating ring 157 is provided on the outer wall of the horizontal rotating cylinder 151 and between two adjacent sleeve rings 152. Each inner wall of the temporary storage box 11 is provided with a constant temperature heating plate 158. The side wall of the arc-shaped stirring block 153 is evenly provided with 8 stirring teeth 1531. When the agent in the temporary storage box 11 is stirred, the agent is uniformly heated by the constant temperature heating ring 157 and the constant temperature heating plate 158. At the same time, the movement of swirling bubbles can enhance the heat convection inside the agent, increase the temperature of the agent, increase the solubility of the solute in the agent, thereby reducing the possibility of crystallization, avoiding the blockage of the spray holes 138 on the hollow spray column 134, and improving the overall operational reliability of the system. The stirring teeth 1531 on the side wall of the arc-shaped stirring block 153 further improve the stirring uniformity. The constant temperature heating ring 157 and the constant temperature heating plate 158 are both based on existing technology.

[0058] like Figure 5 As shown, a gas distribution plate 33 is provided inside the temporary storage box 11 and at the connection with the gas storage tank 30. The gas distribution plate 33 is evenly provided with 20 gas distribution holes 330. When the gas in the gas storage tank 30 is introduced into the temporary storage box 11, the gas is evenly distributed in the form of fine bubbles in the temporary storage box through the gas distribution holes 330 on the gas distribution plate 33, thereby increasing the contact area between the gas and the agent. The gas distribution plate 33 adopts the existing technology.

[0059] Both the air distribution hole 330 and the spiral air passage 1530 are equipped with micro filter screens 16. The micro filter screens 16 are made of elastic material. They prevent solid impurities in the agent from entering the air distribution hole 330 and the spiral air passage 1530, thus avoiding clogging. Furthermore, the elastic structure of the micro filter screens 16 can buffer the impact of water flow on the agent during stirring, thereby improving reliability.

[0060] Example 5: This example differs from Example 3 in that: there are 6 connecting rings 152 and 8 arc-shaped stirring blocks 153 on the outer wall of each connecting ring 152;

[0061] The side wall of the arc-shaped stirring block 153 is evenly provided with 14 stirring teeth 1531.

[0062] Example 6: This example differs from Example 3 in that: in step S3, when the medicine and gas introduced in step S1 are mixed in the temporary storage tank 11, the first rotary motor 154 drives the horizontal rotating cylinder 151, the connecting ring 152 and the arc-shaped stirring block 153 to rotate synchronously and stir the medicine in the temporary storage tank 11. At the same time, the second air compressor 155 introduces external air into the entire horizontal rotating cylinder 151 through the hollow connecting cylinder 150 connected to it, and enters the corresponding arc-shaped stirring block 153 through each connecting ring 152. Since each arc-shaped stirring block 153 is provided with a spiral air passage 1530, the air in the arc-shaped stirring block 153 is sprayed out in a swirling manner through the spiral air passage 1530 and mixed with the medicine. During the stirring process, the medicine is uniformly heated inside by the constant temperature heating ring 157 and the constant temperature heating plate 158.

Claims

1. A system for rapidly treating metal pollution in rivers, characterized in that, It includes an automatic pesticide spraying assembly (1) installed at the upper end of the water source, a pesticide preparation assembly (2) and an air distribution assembly (3) connected to the automatic pesticide spraying assembly (1); The automatic chemical spraying assembly (1) includes a main frame (10) perpendicular to the direction of water flow from the water source, a temporary storage box (11) located at the upper end of the main frame (10), a plurality of automatic dosing cylinders (12) located at the lower end of the main frame (10) and connected to the temporary storage box (11) through a connecting branch pipe (120), and an automatic dosing unit (13) located in each of the automatic dosing cylinders (12). The automatic dosing unit (13) includes a rotating piston (131) threaded to the inner wall of the automatic dosing cylinder (12) and having a connecting notch (130) at its upper end; a vertical connecting rod (132) connected to the rotating piston (131) at its upper end and extending through the automatic dosing cylinder (12) to the outside; a stirring blade (133) at the bottom of the vertical connecting rod (132); a plurality of hollow spray columns (134) at the bottom of the automatic dosing cylinder (12) and distributed circumferentially around the vertical connecting rod (132); a miniature drive motor (135) at the upper end of the automatic dosing cylinder (12) and connected to a second electromagnetic chuck (137) via a telescopic rod; the inner wall of the connecting notch (130) is provided with a first electromagnetic chuck (136) with a polarity opposite to that of the second electromagnetic chuck (137); and a plurality of spray holes (138) are uniformly provided on the side wall of the hollow spray column (134) from top to bottom. The drug preparation assembly (2) includes a drug preparation tank (20), a drug dosing pump (21) for connecting the drug preparation tank (20) and the temporary storage tank (11), and a drug filter (22) located at the outlet of the drug preparation tank (20); The gas distribution assembly (3) includes an air storage tank (30) connected to a temporary storage box (11) via a connecting pipe, a first air compressor (31) connected to the air storage tank (30), and a pressure gauge (32) installed on the air storage tank (30); The temporary storage box (11) is equipped with a mixing and stirring unit (15). The mixing and stirring unit (15) includes a horizontal rotating cylinder (151) connected to the inner wall of the temporary storage box (11) on the left and right sides respectively through a hollow connecting cylinder (150), a plurality of sleeve rings (152) evenly distributed from left to right on the outer wall of the horizontal rotating cylinder (151), a plurality of arc-shaped stirring blocks (153) inclined in the same direction on the outer wall of the sleeve rings (152) along the circumference, a first rotary motor (154) connected to one of the hollow connecting cylinders (150) through a rotating shaft, and a second air compressor (155) connected to the other hollow connecting cylinder (150) through a connecting pipe. A spiral air passage (1530) is provided through the arc-shaped stirring block (153). The hollow connecting cylinder (150), the sleeve ring (152), and the spiral air passage (1530) are interconnected with the inside of the sleeve ring (152). The medicine dispensing box (20) includes a main box body (201) with a cover plate (200) hinged to the upper end, a suspension frame (203) provided in the main box body (201) and having multiple through ports (202) at the upper end, multiple medicine dispensing inner cylinders (204) located in the main box body (201) and having their upper ends connected to the through ports (202) one by one, and a mixing and stirring component (205) provided in each medicine dispensing inner cylinder (204). The side wall of the medicine dispensing inner cylinder (204) extends to the outside through a liquid outlet pipe (2040). A flow meter (2041) is provided on the liquid outlet pipe (2040), and a sub-cover plate (206) is provided on the cover plate (200) at the position directly above each through port (202).

2. The system for rapidly treating metal pollution in rivers according to claim 1, characterized in that, The outer wall of the horizontal rotating cylinder (151) and between two adjacent sleeve rings (152) is provided with a constant temperature heating ring (157), each inner wall of the temporary storage box (11) is provided with a constant temperature heating plate (158), and the side wall of the arc-shaped stirring block (153) is uniformly provided with multiple stirring teeth (1531).

3. The system for rapidly treating metal pollution in rivers according to claim 1, characterized in that, The temporary storage box (11) is provided with an air distribution plate (33) at the connection with the air storage tank (30), and the air distribution plate (33) is provided with a plurality of air distribution holes (330) evenly distributed on it.

4. A system for rapidly treating metal pollution in rivers according to claim 3, characterized in that, Both the air distribution hole (330) and the opening of the spiral air passage (1530) are provided with a micro filter screen (16), which is made of elastic material.

5. A system for rapidly treating metal pollution in rivers according to claim 1, characterized in that, The mixing and stirring component (205) includes a vertical rotating rod (23) with its upper end located inside the drug dispensing inner cylinder (204) and its lower end penetrating through the drug dispensing inner cylinder (204) and the main box (201) and extending to the outside; multiple rotating gears (24) located at the bottom of the main box (201) and whose centers are connected to each of the vertical rotating rods (23); a second rotating motor (25) connected to the center of one of the rotating gears (24); multiple connecting plates (26) distributed circumferentially along the bottom end of the vertical rotating rod (23); multiple spiral heating tubes (27) and multiple spiral cooling tubes (28) connected to the connecting plates (26) at their bottom ends and distributed vertically; the multiple spiral heating tubes (27) and multiple spiral cooling tubes (28) are staggered, and adjacent rotating gears (24) mesh with each other.

6. A system for rapidly treating metal pollution in rivers according to claim 1, characterized in that, The inner wall of the main box (201) is provided with a heat insulation layer, and each medicine dispensing inner cylinder (204) is provided with a temperature sensor (207).

7. A method for rapidly treating metal pollution in rivers, based on the system for rapidly treating metal pollution in rivers according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Install the main frame (10) on both banks of the upstream of the water source to be repaired, so that each vertical connecting rod (132) and hollow spray column (134) extend into the water body. The agent in the dosing tank (20) is extracted by the dosing pump (21), and after passing through the agent filter (22) to filter impurities, it flows into the temporary storage tank (11). At the same time, the first air compressor (31) continuously fills the gas storage tank (30) with gas, and the pressure is monitored in real time by the pressure gauge (32). The gas in the gas storage tank (30) is filled into the temporary storage tank (11). S2. After the agent and gas introduced in step S1 are mixed in the temporary storage tank (11), they flow through each connecting branch pipe (120) to the automatic dosing cylinder (12). At this time, under the impact of the water flow, the stirring blades (133) at the bottom of each vertical connecting rod (132) rotate, and drive the rotating piston (131) to rotate through the vertical connecting rod (132), squeezing the agent in the automatic dosing cylinder (12), so that the agent falls into the hollow spray column (134), and is evenly sprayed into the water body at various depths through each spray hole (138) on the hollow spray column (134), thereby repairing the water body. S3. When the water flow at the water source is static, power is supplied to the first electromagnetic chuck (136) and the second electromagnetic chuck (137) to make them adhere and fix. At this time, the micro drive motor (135) is started, and the micro drive motor (135) drives the rotating piston (131) to rotate. Since the upper end of the automatic dosing cylinder (12) is connected to the second electromagnetic chuck (137) through the telescopic rod, the rotating piston (131) will move downward and squeeze the agent located at its bottom while rotating, so that the agent falls into the hollow spray column (134) and is evenly sprayed into the water body at various depths through the spray holes (138) on the hollow spray column (134), thereby repairing the water body.

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