Liquid pesticide fertilizer related device and method of use

Abstract

The present application relates to a kind of liquid pesticide fertilizer related device and method for using, device includes tank and pipeline assembly, the top of tank is provided with feeding opening, rotating shaft and overturning platform are horizontally arranged in feeding opening, rotating motor is arranged outside feeding opening, overturning platform is horizontally in feeding opening, rotating shaft is horizontally through overturning platform, and with the transmission shaft of external rotating motor is connected, weighing device is arranged on overturning platform;Pipeline assembly includes water inlet main pipeline and circulating pipeline, one end of circulating pipeline is communicated with the bottom of tank, the other end of circulating pipeline is introduced into tank, frequency conversion booster pump is arranged on circulating pipeline, first solenoid valve is arranged at the bottom outlet of tank, second solenoid valve is arranged between frequency conversion booster pump rear and tank, water inlet main pipeline is introduced into the top of tank space.This application realizes automatic control according to the need of on-site production, and the purpose of precise proportioning, fully mixing and effective use is achieved by weighing, proportioning, diluting, mixing and conveying drug.

Description

Technical Field

[0001] This invention relates to the field of irrigation technology, and more specifically, to an apparatus and method of using liquid pesticide fertilizer. Background Technology

[0002] Plants primarily absorb nutrients in ionic form; therefore, any fertilizer must be dissolved in water to be absorbed by crop roots or leaves in its ionic state. Pesticides also generally need to be dissolved in water before use. Without water as an absorption medium, even the best fertilizer is ineffective for crops. Many crops, especially those grown in dryland areas, require fertilizer application. However, a common problem is the lack of effective water-fertilizer integration (i.e., separating irrigation and fertilization) or poor integration (e.g., excessive irrigation or insufficient watering during fertilization), resulting in most of the fertilizer not being effectively absorbed by the crops.

[0003] Currently, water buckets are commonly used for soaking and dissolving pesticides and fertilizers, and for manual mixing. However, because the ratio of pesticides and fertilizers to water cannot be precisely controlled manually, there are errors in the dilution ratio. Moreover, manual mixing cannot ensure that the materials are fully mixed in the bucket, which can easily lead to sedimentation and stratification, resulting in different concentrations of pesticides in each layer.

[0004] Therefore, it is necessary to propose a new device to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a device and method for using liquid pesticide fertilizers, which can achieve automatic control according to the needs of on-site production, weigh, proportion, dilute, mix, and transport the pesticides to achieve accurate proportioning, thorough mixing, and effective use.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A device related to liquid pesticide fertilizer includes a tank and a pipeline assembly. The top surface of the tank is provided with a feeding port. A rotating shaft and a tilting platform are horizontally arranged inside the feeding port. A rotating motor is arranged outside the feeding port. The tilting platform is horizontally located inside the feeding port. The rotating shaft passes horizontally through the tilting platform, and one end of the rotating shaft is rotatably connected to the inner wall of the feeding port. The other end of the rotating shaft passes through the side wall of the feeding port and is connected to the drive shaft of the external rotating motor, thereby realizing the rotation of the tilting platform driven by the rotating motor within the feeding port. A weighing device is arranged on the tilting platform.

[0008] The pipeline assembly includes a main inlet pipe and a circulation pipe. One end of the circulation pipe is connected to the bottom of the tank, and the other end of the circulation pipe enters the tank. A variable frequency booster pump is installed on the circulation pipe. A first solenoid valve is installed at the bottom outlet of the tank. A second solenoid valve is installed between the variable frequency booster pump and the tank along the pumping direction. The main inlet pipe enters the top of the space inside the tank. An electronic flow meter and a third solenoid valve are installed on the inlet pipe.

[0009] In one embodiment, the number of feeding ports is greater than or equal to two, and the number of feeding ports is related to the type of material to be fed.

[0010] In one embodiment, multiple air jet pipes are provided inside the feeding port. The air jet pipes are located below the weighing device and are angled upwards toward the weighing device. Specifically, the bottom end of the air jet pipe passes through the side wall of the feeding port and is connected to an external air source, while the top end of the air jet pipe faces the weighing device. An air jet solenoid valve may also be provided at the air jet pipe.

[0011] In one embodiment, the bottom of the tank is conical, and a return pipe is provided on one side of the bottom of the tank. The return pipe is connected to the circulation pipe, and the second solenoid valve is located between the return pipe and the variable frequency booster pump.

[0012] In one embodiment, the piping assembly further includes a user pipeline, a circulation pipeline between the second solenoid valve and the variable frequency booster pump is connected to the user pipeline, and the user pipeline is equipped with a fourth solenoid valve.

[0013] In one embodiment, the water inlet pipe includes a main water inlet pipe, a first branch pipe, and a second branch pipe. The main water inlet pipe is equipped with a main solenoid valve. Both the first and second branch pipes lead into the top of the space inside the tank. The second branch pipe is located above the first branch pipe. The third solenoid valve and the electronic flow meter are located on the first branch pipe. The second branch pipe is equipped with a fifth solenoid valve. The portion of the second branch pipe inside the tank is equipped with multiple nozzles, which face the inner wall of the tank.

[0014] In one embodiment, the piping assembly further includes a connecting pipe, one end of which is connected to the main water inlet pipe and its connection point is located behind the main solenoid valve. The other end of the connecting pipe is connected to the circulation pipe and its connection point is located between the first solenoid valve and the variable frequency booster pump. A sixth solenoid valve is also provided on the connecting pipe.

[0015] A method for using a liquid pesticide fertilizer-related device, applicable to the aforementioned liquid pesticide fertilizer-related device, comprises the following specific steps:

[0016] Set the input and ratio of pesticides and fertilizers, set the dilution ratio of pesticides and fertilizers, and determine the water intake of the tank;

[0017] Weighing and mixing: Pesticides and fertilizers are put into the two feeding ports of the tank respectively, and weighed accurately through the weighing device in the feeding port until the weight of pesticides and fertilizers in the two feeding ports reaches the required ratio. Then the weighing device is rotated to make the pesticides and fertilizers fall into the tank for use.

[0018] First dilution: The main solenoid valve of the main inlet pipe and the third solenoid valve of the first branch pipe are opened, and clean water enters the tank through the main inlet pipe and the first branch pipe. When the electronic flow meter measures that the water inlet volume reaches 20-40% of the set water inlet volume, the main solenoid valve and the third solenoid valve are closed to stop the water inlet. Pesticides and fertilizers are soaked in water for 3-10 minutes.

[0019] One-time internal circulation stirring: After the pesticides and fertilizers are soaked in water, the first and second solenoid valves are opened, and the variable frequency booster pump runs at low speed, which promotes the internal circulation stirring of the liquid as it flows out and returns to the tank, achieving a one-time dilution and mixing effect.

[0020] Secondary dilution: After the internal circulation stirring reaches the set time, the first and second solenoid valves close, and the main solenoid valve and the third solenoid valve open again to continue injecting 60-80% of the water into the tank. The main solenoid valve and the third solenoid valve then close again.

[0021] Secondary internal circulation stirring: The first and second solenoid valves are opened again, the frequency converter pump runs at low speed, and the liquid in the tank is circulated and stirred to perform secondary dilution and mixing.

[0022] User instructions: After the secondary internal circulation stirring reaches the set time, the second solenoid valve closes, drawing the liquid out of the tank and sending it to the user.

[0023] In one embodiment, when the liquid level in the tank drops to a low level, the five solenoid valves open, and the inner wall of the tank is cleaned through the nozzle. Then, the remaining liquid is extracted from the tank and sent to the user for use.

[0024] Once the liquid medicine in the tank is emptied, all solenoid valves are closed and the variable frequency booster pump stops.

[0025] In one embodiment, when it is necessary to add other types of pesticides or fertilizers, the tank, variable frequency booster pump, and pipeline components can be cleaned, as follows:

[0026] Open the main solenoid valve, the first solenoid valve, the third solenoid valve, the fifth solenoid valve, and the sixth solenoid valve. Clean water will then be used to clean the tank from the top and bottom of the internal space. Next, open the second solenoid valve and the variable frequency booster pump to clean the variable frequency booster pump and the circulation pipeline. Finally, stop the water intake, drain the water from the tank, stop the variable frequency booster pump, and close all solenoid valves.

[0027] In summary, the present invention has the following beneficial effects:

[0028] This invention involves adding fertilizers and pesticides into a tank, and then introducing solvent water through a pipeline assembly to achieve the flow and mixing of the solution within the tank. It can be controlled by a PLC according to the needs of on-site production, weighing, proportioning, diluting, mixing, and conveying the materials to achieve precise proportioning, thorough mixing, and effective use, thereby improving the utilization efficiency of fertilizers and pesticides and reducing costs. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the circulating stirring inside the tank of the present invention.

[0031] In the diagram: 1-Tank body, 2-Feeding port, 3-Weighing device, 4-Main water inlet pipe, 5-Main solenoid valve, 6-Circulation pipe, 7-Variable frequency booster pump, 8-First solenoid valve, 9-Second solenoid valve, 10-First branch pipe, 11-Third solenoid valve, 12-Electronic flow meter, 13-Second branch pipe, 14-Fifth solenoid valve, 15-Return pipe, 16-User pipe, 17-Fourth solenoid valve, 18-Connecting pipe, 19-Sixth solenoid valve, 20-Nozzle, 21-Integrated control module. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It is worth noting that the directional terms such as "up" and "down" used in this article are all relative to the perspective of the attached figures and are only for the purpose of description. They should not be interpreted as limitations on the technical solutions.

[0034] This invention provides a device related to liquid pesticide fertilizers, such as... Figure 1 As shown, the system includes a tank 1 and a piping assembly. Fertilizers and pesticides are added into the tank 1, and solvent water is introduced through the piping assembly to achieve the flow and mixing of the solution within the tank 1. The specific structure is as follows:

[0035] The top surface of the tank 1 is provided with a feeding port 2. A rotating shaft and a tilting platform are horizontally arranged inside the feeding port 2. A rotating motor is arranged outside the feeding port 2. The tilting platform is horizontally located inside the feeding port 2. The rotating shaft passes horizontally through the tilting platform, and one end of the rotating shaft is rotatably connected to the inner wall of the feeding port 2. The other end of the rotating shaft passes through the side wall of the feeding port 2 and is connected to the drive shaft of the external rotating motor. The rotating motor is not shown in the attached figure. This enables the tilting platform driven by the rotating motor to rotate inside the feeding port 2. A weighing device 3, such as an electronic scale, is arranged on the tilting platform. Before feeding, the weighing device 3 is in a horizontal state. Pesticides or fertilizers are put into the weighing device 3 to accurately weigh the amount of feed. After confirming that the amount of pesticides or fertilizers in the weighing device 3 is correct, the rotating motor drives the tilting platform to rotate, and the material in the weighing device 3 is introduced into the tank 1. Then the rotating motor drives the weighing device 3 to return to its original position.

[0036] In this invention, the number of feeding ports 2 is greater than or equal to two. Specifically, the number of feeding ports 2 is related to the type of material to be fed. For example, the tank 1 has two feeding ports 2, namely pesticide feeding port 2 and fertilizer feeding port 2. Since the amount of fertilizer fed is much greater than the amount of pesticide fed, the inner diameter of the fertilizer feeding port 2 is larger than that of the pesticide feeding port 2.

[0037] More specifically, the weighing device 3 inside the fertilizer feeding port 2 is a 50kg electronic scale, and the weighing device 3 inside the pesticide feeding port 2 is a 200g electronic scale.

[0038] This invention subdivides the feeding process into weighing and feeding steps. In the weighing step, the pesticides and fertilizers to be fed are accurately weighed and proportioned. An integrated control module 21 is installed outside the tank 1. The integrated control module 21 is a conventional PLC controller or other controller. The weighing device 3 and the rotating motor at the feeding port 2 are connected to the integrated control module 21. When the fertilizer or pesticide on the weighing device 3 reaches the set weight value, the integrated control module 21 controls the rotating motor to start, causing the weighing device 3 to rotate 180°, so that the pesticide or fertilizer falls into the tank 1. Then the weighing device 3 resets.

[0039] Furthermore, to prevent pesticide or fertilizer residues from remaining in the weighing vessel 3, multiple air jet pipes are installed inside the feeding port 2. The air jet pipes are located below the weighing vessel 3 and are angled upwards towards the weighing vessel 3. Specifically, the bottom end of the air jet pipe passes through the side wall of the feeding port 2 and is connected to an external air source, while the top end of the air jet pipe faces the weighing vessel 3. An air jet solenoid valve can also be installed at the air jet pipe. The air jet solenoid valve is connected to the integrated control module 21. After the weighing vessel 3 is flipped, the air jet solenoid valve opens, and the air jet pipes blow the flipped weighing vessel 3, causing the material adhering to the bottom surface of the weighing vessel 3 to be blown out and fall into the tank 1.

[0040] The piping assembly of the present invention includes a main inlet pipe 4 and a circulation pipe 6, such as Figure 1 As shown, one end of the circulation pipe 6 is connected to the bottom of the tank 1, and the other end of the circulation pipe 6 enters the tank 1. A variable frequency booster pump 7 is installed on the circulation pipe 6. A first solenoid valve 8 is installed at the bottom outlet of the tank 1. Along the pumping direction, a second solenoid valve 9 is installed between the variable frequency booster pump 7 and the tank 1. When the first solenoid valve 8 and the second solenoid valve 9 are opened simultaneously, the variable frequency booster pump 7 internally circulates and stirs the liquid in the tank 1, promoting the dissolution of pesticides and fertilizers in the water. The water inlet main pipe... Water inlet pipe 4 leads into the top of the space inside tank 1. The water inlet pipe is equipped with an electronic flow meter 12 and a third solenoid valve 11. Along the water flow direction, the electronic flow meter 12 is located behind the third solenoid valve 11. The first solenoid valve 8, the second solenoid valve 9, the third solenoid valve 11 and the electronic flow meter 12 are all connected to the integrated control module 21 and controlled by the integrated control module 21. When the third solenoid valve 11 is opened, water enters tank 1. When the electronic flow meter 12 calculates that the water inlet volume has reached the set value, the third solenoid valve 11 is closed.

[0041] Furthermore, to improve the effect of internal circulation mixing, such as Figure 2 As shown, the bottom of the tank 1 is conical, and a return pipe 15 is provided on one side of the bottom of the tank 1. The return pipe 15 is connected to the circulation pipe 6, and the second solenoid valve 9 is located between the return pipe 15 and the variable frequency booster pump 7. Figure 2 As shown, the liquid flowing back into tank 1 forms a vortex at the conical bottom of tank 1, which improves the effect of internal circulation stirring.

[0042] The piping assembly also includes a user pipeline 16, and a circulation pipeline 6 between the second solenoid valve 9 and the variable frequency booster pump 7 is connected to the user pipeline 16. The user pipeline 16 is equipped with a fourth solenoid valve 17. When the second solenoid valve 9 is closed and the first solenoid valve 8 and the fourth solenoid valve 17 are open, the medicine is transported from the tank 1 to the user for use.

[0043] Furthermore, the water inlet pipe includes a main water inlet pipe 4, a first branch pipe 10, and a second branch pipe 13, as shown below. Figure 1 As shown, the main water inlet pipe 4 is equipped with a main solenoid valve 5. The first branch pipe 10 and the second branch pipe 13 both lead to the top of the space inside the tank 1, with the second branch pipe 13 located above the first branch pipe 10. The third solenoid valve 11 and the electronic flow meter 12 are located on the first branch pipe 10. The second branch pipe 13 is equipped with a fifth solenoid valve 14, and the portion of the second branch pipe 13 inside the tank 1 is equipped with multiple nozzles 20, which face the inner wall of the tank 1. The function of the first branch pipe is to meteredly introduce water into the tank 1, and the function of the second branch pipe is to clean the inner wall of the tank 1.

[0044] Furthermore, the piping assembly also includes a connecting pipe 18. One end of the connecting pipe 18 is connected to the main inlet pipe 4, and its connection point is located behind the main solenoid valve 5. The other end of the connecting pipe 18 is connected to the circulation pipe 6, and its connection point is located between the first solenoid valve 8 and the variable frequency booster pump 7. A sixth solenoid valve 19 is also installed on the connecting pipe 18. The function of the connecting pipe 18 is to backwash the tank 1 and flush the variable frequency booster pump 7.

[0045] In this invention, all solenoid valves are normally closed. When an opening signal is received, the corresponding solenoid valve opens; otherwise, it remains normally closed. Unless otherwise specified in the description of this invention, the solenoid valve is assumed to be closed.

[0046] This invention also provides a method for using a device related to liquid pesticides and fertilizers, which weighs, proportions, dilutes, mixes, and transports the pesticides to achieve precise proportioning, thorough mixing, and effective use. The specific steps are as follows:

[0047] Set the input and ratio of pesticides and fertilizers, set the dilution ratio of pesticides and fertilizers on the integrated control module 21, and determine the water intake in tank 1;

[0048] Weighing and mixing: Pesticides and fertilizers are put into the two feeding ports 2 of tank 1 respectively, and weighed accurately through the weighing device 3 inside the feeding port 2 until the weight of pesticides and fertilizers in the two feeding ports 2 reaches the required ratio. Then the weighing device 3 is rotated to make the pesticides and fertilizers fall into the tank 1 for use.

[0049] First dilution: The main solenoid valve 5 of the main water inlet pipe 4 and the third solenoid valve 11 of the first branch pipe 10 are opened, and clean water enters the tank 1 through the main water inlet pipe 4 and the first branch pipe 10. When the electronic flow meter 12 measures that the water inlet volume reaches 20-40% of the set water inlet volume, such as 30%, the main solenoid valve 5 and the third solenoid valve 11 are closed to stop the water inlet. The pesticides and fertilizers are soaked in the water for 3-10 minutes, such as 5 minutes.

[0050] One-time internal circulation stirring: After the pesticides and fertilizers are soaked in water, the first solenoid valve 8 and the second solenoid valve 9 are opened, and the variable frequency booster pump 7 runs at low speed, which promotes the internal circulation stirring of the liquid as it flows out and returns to the tank 1, achieving a one-time dilution and mixing effect.

[0051] Secondary dilution: After the internal circulation stirring reaches the set time, the first solenoid valve 8 and the second solenoid valve 9 are closed, and the main solenoid valve 5 and the third solenoid valve 11 are opened again to continue injecting 60-80% of the water into the tank 1. For example, after injecting 70% of the water into the tank 1, the main solenoid valve 5 and the third solenoid valve 11 are closed again.

[0052] Secondary internal circulation stirring: The first solenoid valve 8 and the second solenoid valve 9 are opened again, the variable frequency booster pump 7 runs at low speed, and the liquid in the tank is circulated and stirred to carry out secondary dilution and mixing.

[0053] User use: After the secondary internal circulation stirring reaches the set time, the second solenoid valve 9 closes, and the medicine is drawn out of the tank 1 and sent to the user end for use. More specifically, when the user pipeline 16 is introduced, the fourth solenoid valve 17 can be opened, and the frequency converter booster pump 7 is used as a delivery pump to send the medicine to the user end for use through the user pipeline 16.

[0054] With the second branch pipe 13 introduced, when the liquid level in tank 1 drops to the minimum limit, the fifth solenoid valve opens, and the inner wall of tank 1 is cleaned through the nozzle 20. The remaining liquid is then pumped out of tank 1 and delivered to the user. With the user pipe 16 introduced, the fourth solenoid valve 17 can also be opened, and the variable frequency booster pump 7 pumps the liquid to the user through the user pipe 16.

[0055] After the liquid medicine in tank 1 is emptied, all solenoid valves are closed and the variable frequency booster pump 7 stops.

[0056] In addition, when it is necessary to add other types of pesticides or fertilizers, the tank 1, the variable frequency booster pump 7, and the pipeline components can be cleaned, and the steps are as follows:

[0057] Open the main solenoid valve 5, the first solenoid valve 8, the third solenoid valve 11, the fifth solenoid valve 14, and the sixth solenoid valve 19. Clean water will then be used to clean the tank 1 from the top and bottom of the internal space. Next, open the second solenoid valve 9 and the variable frequency booster pump to clean the variable frequency booster pump 7 and the circulation pipe 6. Finally, stop the water intake, keep the variable frequency booster pump 7 and the first solenoid valve 8 open, and open the fourth solenoid valve 17. Close the other solenoid valves to drain the water from the tank 1. Then, stop the variable frequency booster pump 7 and close the first solenoid valve 8 and the fourth solenoid valve 17.

[0058] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A device related to liquid pesticide fertilizer, characterized in that, The device includes a tank (1) and a pipeline assembly. A feeding port (2) is provided on the top surface of the tank (1). A rotating shaft and a tilting platform are horizontally arranged inside the feeding port (2). A rotating motor is provided outside the feeding port (2). The tilting platform is horizontally located inside the feeding port (2). The rotating shaft passes horizontally through the tilting platform. One end of the rotating shaft is rotatably connected to the inner wall of the feeding port (2). The other end of the rotating shaft passes through the side wall of the feeding port (2) and is connected to the drive shaft of the external rotating motor. A weighing device (3) is provided on the tilting platform. The pipeline assembly includes an inlet pipe and a circulation pipe (6). One end of the circulation pipe (6) is connected to the bottom of the tank (1), and the other end of the circulation pipe (6) is connected into the tank (1). A variable frequency booster pump (7) is installed on the circulation pipe (6). A first solenoid valve (8) is installed at the bottom outlet of the tank (1). A second solenoid valve (9) is installed between the variable frequency booster pump (7) and the tank (1) along the pumping direction. The inlet pipe is connected to the top of the space inside the tank (1). The bottom of the tank (1) is conical, and a return pipe (15) is provided on one side of the bottom of the tank (1). The return pipe (15) is connected to the circulation pipe (6), and the second solenoid valve (9) is located between the return pipe (15) and the variable frequency booster pump (7).

2. The apparatus as claimed in claim 1, characterized in that, The number of feeding ports (2) is greater than or equal to two.

3. The apparatus as described in claim 1, characterized in that, Multiple air jet pipes are installed inside the feeding port (2). The air jet pipes are located below the weighing device (3) and are angled upward toward the weighing device (3). Specifically, the bottom end of the air jet pipe passes through the side wall of the feeding port (2) and is connected to an external air source. The top end of the air jet pipe faces the weighing device (3). An air jet solenoid valve can also be installed at the air jet pipe.

4. The apparatus as claimed in claim 1, characterized in that, The pipeline assembly also includes a user pipeline (16), and the circulation pipeline (6) between the second solenoid valve (9) and the variable frequency booster pump (7) is connected to the user pipeline (16), and the user pipeline (16) is equipped with a fourth solenoid valve (17).

5. The apparatus as described in claim 4, characterized in that, The water inlet pipe includes a main water inlet pipe (4), a first branch pipe (10), and a second branch pipe (13). The main water inlet pipe (4) is equipped with a main solenoid valve (5). The first branch pipe (10) and the second branch pipe (13) both lead into the top of the space inside the tank (1). The second branch pipe (13) is located above the first branch pipe (10). The first branch pipe (10) is equipped with a third solenoid valve (11) and an electronic flow meter (12). The second branch pipe (13) is equipped with a fifth solenoid valve (14). The part of the second branch pipe (13) inside the tank (1) is equipped with multiple nozzles (20). The nozzles (20) face the inner wall of the tank (1).

6. The apparatus as claimed in claim 5, characterized in that, The pipeline assembly also includes a connecting pipe (18), one end of which is connected to the main water inlet pipe (4), and the other end of which is connected to the circulation pipe (6). A sixth solenoid valve (19) is also provided on the connecting pipe (18).

7. A method of using a device related to liquid pesticide fertilizer, characterized in that, The apparatus applicable to liquid pesticide fertilizers as described in any one of claims 1-6 comprises the following steps: Set the input and ratio of pesticides and fertilizers, set the dilution ratio of pesticides and fertilizers, and determine the water intake in tank (1); Weighing and mixing ratio: Pesticides and fertilizers are put into the feeding port (2) of the tank (1) respectively, and weighed accurately by the weighing device (3) inside the feeding port (2). Then the weighing device (3) is rotated so that the pesticides and fertilizers fall into the tank (1) for use. First dilution: Clean water enters the tank (1) through the inlet pipe. When the water volume reaches 20-40% of the set water volume, stop the water intake and soak the pesticides and fertilizers in the water for 3-10 minutes. One-time internal circulation stirring: After the pesticide and fertilizer are soaked in water, the first solenoid valve (8) and the second solenoid valve (9) are opened, and the variable frequency booster pump (7) runs at low speed, so that the liquid forms an internal circulation stirring during the process of flowing out and returning to the tank (1), achieving a one-time dilution and mixing effect; Secondary dilution: After the first internal circulation stirring reaches the set time, the first solenoid valve (8) and the second solenoid valve (9) are closed, and 60-80% of the water volume is injected into the tank (1); Secondary internal circulation stirring: The first solenoid valve (8) and the second solenoid valve (9) are opened again, the variable frequency booster pump (7) runs at low speed, and the liquid in the tank is internally circulated and stirred to carry out secondary dilution and mixing; User use: When the secondary internal circulation stirring reaches the set time, the second solenoid valve (9) closes, and the liquid medicine is extracted from the tank (1) and sent to the user end for use.

8. The method of use as described in claim 7, characterized in that, The water inlet pipe includes a main water inlet pipe (4), a first branch pipe (10), and a second branch pipe (13). The main water inlet pipe (4) is equipped with a main solenoid valve (5). The first branch pipe (10) and the second branch pipe (13) both lead into the top of the space inside the tank (1). The second branch pipe (13) is located above the first branch pipe (10). The first branch pipe (10) is equipped with a third solenoid valve (11) and an electronic flow meter (12). The second branch pipe (13) is equipped with a fifth solenoid valve (14). The part of the second branch pipe (13) inside the tank (1) is equipped with multiple nozzles (20). The nozzles (20) face the inner wall of the tank (1). When the liquid in the tank (1) drops to the minimum level, the fifth solenoid valve opens and the inner wall of the tank (1) is cleaned through the nozzle (20). Then the remaining liquid is extracted from the tank (1) and sent to the user for use.

9. The method of use as described in claim 8, characterized in that, The pipeline assembly also includes a connecting pipe (18), one end of which is connected to the main water inlet pipe (4), and the other end of which is connected to the circulation pipe (6). A sixth solenoid valve (19) is also provided on the connecting pipe (18). When it is necessary to add other types of pesticides or fertilizers, the tank (1), variable frequency booster pump (7) and pipeline components can be cleaned, and the steps are as follows: Open the main solenoid valve (5), the first solenoid valve (8), the third solenoid valve (11), the fifth solenoid valve (14) and the sixth solenoid valve (19), and clean water will clean the tank (1) from the top and bottom of the space inside the tank (1). Then, open the second solenoid valve (9) and the variable frequency booster pump to clean the variable frequency booster pump (7) and the circulation pipe (6). Finally, stop the water intake, drain the water in the tank (1), stop the variable frequency booster pump (7), and close all solenoid valves.

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