Agricultural polluted water treatment device and method

Abstract

The invention provides an agricultural polluted water treatment device and method, and relates to the technical field of sewage treatment.The agricultural polluted water treatment device comprises a first treatment pond, a second treatment pond, a third treatment pond, a top plate, a bearing plate, a first filter plate, a first spring, a sliding assembly, a rotating assembly and a stirring assembly; a water outlet is formed between the first treatment pond and the second treatment pond, a filtering assembly is arranged between the second treatment pond and the third treatment pond, the rotating assembly and the sliding assembly are connected with the bottom of a top plate arranged above, and the two ends of the rotating assembly are connected with a bearing plate and a filtering plate correspondingly; the bearing plate is connected with the bottom of the first treatment pond through a first spring, the rotating end of the rotating assembly is meshed with one end of the sliding assembly, the other end of the sliding assembly is connected with the stirring assembly, and the stirring assembly is used for stirring polluted water in the third treatment pond. According to the invention, the produced agricultural polluted water can be quickly and effectively treated, and the pollution of the polluted water to the surrounding environment is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more particularly, to an agricultural polluted water treatment device and method. Background Art

[0002] Agricultural polluted water refers to the water body containing various pollutants generated in agricultural production activities, and its main sources include pesticide use, excessive chemical fertilizer application, livestock and poultry breeding wastewater, and farmland runoff. After these pollutants enter the water body, they will not only damage the aquatic ecosystem and affect biodiversity, but may also accumulate through the food chain and pose a threat to human health.

[0003] At present, most of the agricultural polluted water is directly discharged into natural water bodies after simple treatment, or first accumulated to a certain extent and then transported to a sewage treatment plant for treatment. The former will cause environmental pollution, while the latter, although treating part of the polluted water, may still lead to leakage of the polluted water during storage due to the inability to treat the polluted water in time, resulting in environmental pollution. Summary of the Invention

[0004] The problem solved by the present invention is how to treat polluted water in a timely and effective manner.

[0005] To solve the above problems, the present invention provides an agricultural polluted water treatment device and method.

[0006] In a first aspect, the present invention provides an agricultural polluted water treatment device, including a first treatment tank, a second treatment tank, a third treatment tank, a top plate, a load-bearing plate, a first filter plate, a first spring, a sliding assembly, a rotating assembly, and a stirring assembly. An outlet is provided vertically between the first treatment tank and the second treatment tank. A filtering assembly is provided between the second treatment tank and the third treatment tank. The top plate is arranged above the first treatment tank, the second treatment tank, and the third treatment tank. The rotating assembly is arranged above the first treatment tank and the second treatment tank and is connected to the bottom of the top plate. The sliding assembly is arranged above the second treatment tank and the third treatment tank and is slidably connected to the bottom of the top plate. One end of the rotating assembly is connected to the load-bearing plate arranged in the first treatment tank. The load-bearing plate is connected to the bottom of the first treatment tank through the first spring. The other end of the rotating assembly is connected to the first filter plate arranged in the second treatment tank. The rotating end of the rotating assembly meshes with one end of the sliding assembly close to the second treatment tank. One end of the sliding assembly close to the third treatment tank is connected to the stirring assembly, and the stirring assembly is used for stirring the polluted water in the third treatment tank.

[0007] Optionally, the rotating assembly includes a connecting member and a fixed pulley. The fixed pulley is fixedly connected to the bottom end of the top plate. One end of the connecting member is connected to the load-bearing plate, and the other end of the connecting member passes through the fixed pulley and is connected to the first filter plate. The connecting member is configured to drive the first filter plate at the other end to perform relative lifting and lowering movement along the vertical direction by the load-bearing plate at one end, and drive the fixed pulley to rotate.

[0008] Optionally, a rotating gear is provided at one end of the rotating shaft of the fixed pulley, and a rack is correspondingly provided at one end of the sliding assembly close to the second treatment tank. The rotating gear meshes with the rack, and the rotating gear is configured to drive the sliding assembly to perform a reciprocating movement along a first direction, where the first direction is the direction from the second treatment tank to the third treatment tank.

[0009] Optionally, the sliding assembly includes a linkage plate and a support slider. The top plate is provided with a chute extending along the first direction. The linkage plate is slidably connected to the chute through the support slider. One end of the linkage plate meshes with the rotating gear through the provided rack, and the other end of the linkage plate is connected to the stirring assembly.

[0010] Optionally, the stirring assembly includes a connecting mechanism, a support rod, and a stirring rod. One end of the connecting mechanism is connected to the sliding assembly, the other end of the connecting mechanism is connected to the middle of the support rod, and a stirring rod extending into the third treatment tank is provided below the support rod.

[0011] Optionally, the connecting mechanism includes a support tube, a sliding rod, a linkage rod, and a second spring. One end of the support tube is connected to the sliding assembly. A sliding rod is arranged inside the support tube. One end of the sliding rod is connected to the bottom of one end of the support tube through the second spring. The other end of the sliding rod extends out of the other end of the support tube and is connected to the support rod. A linkage groove is axially formed on the side wall of the support tube. One end of the linkage rod passes through the linkage groove and is connected to the sliding rod. The side wall of the linkage rod is slidably connected to a corrugated plate suspended at the bottom of the top plate. The corrugated plate is configured to convert the movement of the linkage rod in the first direction into a movement in the vertical direction through a corrugated structure connected to the linkage rod when the sliding rod drives the linkage rod to move in the first direction, where the first direction is the direction from the second treatment tank to the third treatment tank.

[0012] Optionally, the polluted water treatment device further includes: A first guide plate, one end of the first guide plate is connected to the inlet of the first treatment tank, and the other end of the first guide plate is used to connect to a polluted water source; and / or The second deflector plate, a sewage outlet is formed in the side wall of the second treatment tank, the second deflector plate is connected to the sewage outlet, and the second deflector plate is configured to export the solid impurities through the second deflector plate when the first filter plate lifts the solid impurities to the sewage outlet. Optionally, overflow tanks are respectively arranged on both sides of the first treatment tank, an overflow port is arranged on the side wall of the first treatment tank connected to the overflow tank, a water pump is arranged in the overflow tank, and the water pump is used for pumping out the polluted water that overflows from the overflow port of the first treatment tank into the overflow tank.

[0013] Optionally, the filtering assembly includes a lifting plate, a second filter plate and a linkage block, a communication port is formed between the second treatment tank and the third treatment tank, the second filter plate is clamped in the communication port, the lifting plate is slidably connected to the first filter plate, the bottom of the lifting plate is connected to the second filter plate through the linkage block, and the lifting plate is configured to control the polluted water in the second treatment tank to enter the third treatment tank as the first filter plate rises and falls.

[0014] In a second aspect, the present invention provides an agricultural polluted water treatment method. Based on the agricultural polluted water treatment device described in the first aspect, the agricultural polluted water screening method includes: After the polluted water enters the first treatment tank, when the load-bearing plate descends under the action of gravity, the first filter plate in the second treatment tank is driven to rise through the rotating assembly to filter the solid impurities in the second treatment tank, and the stirring assembly connected to the sliding assembly is driven by the rotating end of the rotating assembly to stir the polluted water in the third treatment tank; After the polluted water flows out of the first treatment tank, the load-bearing plate rises under the elastic force of the first spring, the first filter plate descends to re-filter the solid impurities in the second treatment tank, and the stirring assembly connected to the sliding assembly is driven by the rotating end to stir the polluted water in the third treatment tank.

[0015] The beneficial effects of the agricultural pollution water treatment device and method of the present invention are as follows: Since there is a water outlet between the first treatment tank and the second treatment tank, the polluted water can smoothly flow from the first treatment tank into the second treatment tank. The filtration component provided between the second treatment tank and the third treatment tank can filter the polluted water flowing into the third treatment tank, removing solid impurities in the sewage and improving the purification degree of the sewage. Through this multi-stage treatment method, the pollutant content in the sewage can be gradually reduced, achieving a better sewage treatment effect. The rotating component is arranged above the first treatment tank and the second treatment tank and connected to the bottom of the top plate. One end of the rotating component is connected to the bearing plate in the first treatment tank, and the other end is connected to the first filter plate in the second treatment tank. When the bearing plate is subjected to the gravity of the flowing polluted water, it can drive the first filter plate at the other end to move in the vertical direction through the rotating component. At the same time, the bearing plate is connected to the bottom of the first treatment tank through the first spring. When the bearing plate is subjected to the gravity of the polluted water pressing down, the spring can be compressed and the bearing plate can descend. When the polluted water on the bearing plate flows out and decreases, the spring will gradually return to its initial state and lift the bearing plate. In the second treatment tank, by driving the first filter plate to lift through the rotating component, the solid impurities in the second treatment tank can be filtered out and removed, improving the filtering efficiency of the second treatment tank for solid impurities in the polluted water. The sliding component is arranged above the second treatment tank and the third treatment tank and slidably connected to the bottom of the top plate. One end of the sliding component is meshed with the rotating shaft of the rotating component, and the other end is connected to the stirring component arranged in the third treatment tank. Through the meshing connection relationship, the rotation of the rotating component is converted into the sliding of the sliding component in the horizontal direction, so that the stirring component can be driven by the sliding component to stir the third treatment tank, making the substances in the sewage fully mixed, which is beneficial to chemical reactions in the sewage treatment process, such as oxidation, neutralization, etc., and further improving the sewage treatment effect. Through the hierarchical treatment of the polluted water by the first treatment tank, the second treatment tank and the third treatment tank, it is ensured that the polluted water is fully treated in each treatment. Through the cooperation of the rotating component and the sliding component, the gravitational potential energy of the polluted water on the bearing plate and the first spring in the first treatment tank can be converted into the kinetic energy for subsequent device treatment, so that the first filter plate can filter the solid impurities in the second treatment tank, and the stirring component can stir the polluted water in the third treatment tank, thus realizing the rapid and efficient treatment of the polluted water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 One of the structural schematic diagrams of an agricultural pollution water treatment device according to an embodiment of the present invention; Figure 2 Another structural schematic diagram of an agricultural pollution water treatment device according to an embodiment of the present invention; Figure 3 Another structural schematic diagram of an agricultural pollution water treatment device according to an embodiment of the present invention; Figure 4 Structural schematic diagram of the rotating assembly according to an embodiment of the present invention; Figure 5 Schematic diagram of the connection mechanism according to an embodiment of the present invention; Figure 6 Structural schematic diagram of the filtering mechanism according to an embodiment of the present invention; Figure 7 Flow schematic diagram of a method for treating agricultural polluted water according to an embodiment of the present invention.

[0017] 01 - First treatment tank; 02 - Second treatment tank; 03 - Third treatment tank; 04 - Top plate; 05 - Load-bearing plate; 06 - First filter plate; 07 - Rotating assembly; 071 - Connecting piece; 072 - Fixed pulley; 073 - Rotating gear; 08 - Sliding assembly; 081 - Linking plate; 082 - Supporting slider; 09 - Stirring assembly; 091 - Connection mechanism; 0911 - Support pipe; 0912 - Sliding rod; 0913 - Linking rod; 0914 - Second spring; 092 - Support rod; 093 - Stirring rod; 10 - First spring; 11 - Overflow pool; 12 - Water pump; 13 - Filter assembly; 131 - Lifting plate; 132 - Second filter plate; 133 - Linking block; 14 - Water outlet; 15 - Sewage outlet; 16 - Corrugated plate; 17 - First guide plate; 18 - Second guide plate. Detailed implementation manners

[0018] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention is made with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0019] It should be understood that the various steps recorded in the method embodiments of the present invention can be executed in different orders and / or executed in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this regard.

[0020] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0021] It should be noted that the modification of "one" and "plural" mentioned in the present invention is illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0022] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0023] At present, with the booming development of agricultural production, the problem of agricultural polluted water follows closely. The sources of agricultural polluted water come from multiple links of agricultural production. For example, during the use of pesticides, the pesticides not absorbed by crops enter the water body with the water flow. Excessive application of chemical fertilizers results in excess nitrogen, phosphorus and other nutrients forming farmland runoff during precipitation or irrigation, carrying pollutants into rivers, lakes and seas. A large amount of wastewater generated by livestock and poultry breeding contains high concentrations of organic matter, pathogens, etc., and is discharged wantonly without effective treatment. Once these pollutants enter the water body, they will first affect the aquatic ecosystem. Water eutrophication may lead to the crazy growth of algae, squeezing the living space of other aquatic organisms, breaking the original ecological balance, and may affect biodiversity. Moreover, the pollutants accumulate continuously through the food chain and ultimately endanger human health. In the related art, one method for treating polluted water is to directly discharge the polluted water after simple treatment, and the pollutants therein are not effectively removed, and still will pollute the natural water environment. Another method is to transport the collected polluted water to a sewage treatment plant for centralized treatment. Although most of the sewage can be treated, there may be leakage hazards due to long-term storage, and it will still pollute the surrounding environment. For example, the polluted water leaks into the soil, causing the soil nutrient imbalance and heavy metal accumulation, resulting in soil compaction and quality decline; the polluted water enters the surface water and causes eutrophication, threatening the survival of aquatic organisms, and seeping into the groundwater reduces the water quality; the decomposition of organic matter in the polluted water produces irritating odor gases and greenhouse gases, polluting the air and aggravating climate change.

[0024] In view of the problems existing in the above related technologies, the embodiments of the present invention provide an agricultural sewage treatment device and method.

[0025] As Figures 1 to 3 shown, an agricultural sewage treatment device provided by the embodiments of the present invention includes a first treatment tank 01, a second treatment tank 02, a third treatment tank 03, a top plate 04, a load-bearing plate 05, a first filter plate 06, a first spring 10, a sliding assembly 08, a rotating assembly 07, and a stirring assembly 09. An outlet 14 is provided vertically between the first treatment tank 01 and the second treatment tank 02. A filtering assembly 13 is provided between the second treatment tank 02 and the third treatment tank 03. The top plate 04 is arranged above the first treatment tank 01, the second treatment tank 02, and the third treatment tank 03. The rotating assembly 07 is arranged above the first treatment tank 01 and the second treatment tank 02 and is connected to the bottom of the top plate 04. The sliding assembly 08 is arranged above the second treatment tank 02 and the third treatment tank 03 and is slidably connected to the bottom of the top plate 04. One end of the rotating assembly 07 is connected to the load-bearing plate 05 arranged in the first treatment tank 01. The load-bearing plate 05 is connected to the bottom of the first treatment tank 01 through the first spring 10. The other end of the rotating assembly 07 is connected to the first filter plate 06 arranged in the second treatment tank 02. The rotating end of the rotating assembly 07 meshes with one end of the sliding assembly 08 close to the second treatment tank 02. One end of the sliding assembly 08 close to the third treatment tank 03 is connected to the stirring assembly 09. The stirring assembly 09 is used for stirring the sewage in the third treatment tank 03.

[0026] Specifically, the first treatment tank 01, the second treatment tank 02, and the third treatment tank 03 are arranged in sequence to form a continuous treatment process, so that the polluted water meets the discharge requirements after being treated by the three treatment tanks. An outlet 14 is provided along the vertical direction at the connection between the first treatment tank 01 and the second treatment tank 02. The outlet 14 can be a plurality of outlets 14 arranged in sequence along the vertical direction. The vertical direction is the height direction of the first treatment tank 01, that is, the direction perpendicular to the bottom of the first treatment tank and upward. A plurality of outlets 14 can be opened from bottom to top. In this way, during the descent of the load-bearing plate 05, the polluted water in the first treatment tank 01 can be discharged into the second treatment tank 02 through the outlets 14 at different heights. The more the load-bearing plate 05 descends, the more outlets participate in the drainage, thereby effectively improving the efficiency of discharging the polluted water from the first treatment tank 01 to the second treatment tank 02. That is, according to the change in the amount of polluted water introduced into the first treatment tank 01, the number of water outlet holes can be adjusted through the load-bearing plate 05 and the first spring 10, so that the polluted water in the first treatment tank 01 can smoothly flow into the second treatment tank 02. For example, when the polluted water enters the first treatment tank 01, due to the supporting effect of the load-bearing plate 05 and the first spring 10 below, the water level of the polluted water is at a relatively high height. At this time, the polluted water will flow into the second treatment tank 02 through the outlets 14 at the corresponding height positions. As the polluted water increases, the weight of the polluted water borne by the load-bearing plate 05 also continuously increases, but the elastic force of the first spring 10 remains unchanged. Therefore, the load-bearing plate 05 will gradually sink as the polluted water increases. At this time, the polluted water will flow into the second treatment tank 02 through the outlets 14 corresponding to the positions above the sinking position. Since the outlets 14 are provided along the vertical direction, the more the load-bearing plate 05 sinks, the more corresponding outlets 14 there are, so that a large amount of polluted water injected into the first treatment tank 01 can flow into the second treatment tank 02 through sufficient outlets 14. And a filtering component 13 is provided between the second treatment tank 02 and the third treatment tank 03 to filter the polluted water flowing from the second treatment tank 02 to the third treatment tank 03. For example, water treatment flocculants, alum and other agents are put into the second treatment tank 02, and solid impurities will gradually be separated from the agricultural polluted water entering the second treatment tank 02. This is to prevent the separated solid impurities from flowing into the third treatment tank 03. The polluted water in the second treatment tank 02 flows into the third treatment tank 03 after being filtered by the filtering component 13, and the separated solid impurities are left in the second treatment tank 02, making the water entering the third treatment tank 03 cleaner and reducing the burden on the subsequent treatment of the third treatment tank 03.

[0027] The top plate 04 of the screening device is arranged above the first treatment tank 01, the second treatment tank 02 and the third treatment tank 03, playing a role in protection and support. On the one hand, it can prevent foreign objects from entering the treatment tanks and avoid interfering with the treatment process; on the other hand, it provides an installation basis for other components such as the rotating assembly 07 and the sliding assembly 08. The top plate 04 can be connected to the edge of the treatment tank through structures such as columns for supporting the top plate 04. For example, columns are respectively arranged on both sides of one end of the top plate 04 close to the third treatment tank 03. One end of the column is fixedly connected to the side wall of the third treatment tank 03, and the other end is fixedly connected to the bottom of the top plate 04. Similarly, columns can also be arranged on both sides of one end of the top plate 04 close to the first treatment tank 01. One end of the column is connected to the side wall of the first treatment tank 01, and the other end is connected to the bottom of the top plate 04, so as to support the top plate 04 through the columns and ensure that the top plate 04 can be stably arranged above the first treatment tank 01, the second treatment tank 02 and the third treatment tank 03.

[0028] A linkage structure is arranged at the bottom of the top plate 04. The linkage structure includes a rotating assembly 07 and a sliding assembly 08. The rotating assembly 07 is arranged above the first treatment tank 01 and the second treatment tank 02 and is fixedly connected to the bottom of the top plate 04. The rotating assembly 07 can include fixed pulleys 072 and steel cables. The pulleys are fixed to the bottom of the top plate 04, and the steel cables pass through the pulleys. One end is connected to the load-bearing plate 05 in the first treatment tank 01, and the other end is connected to the first filter plate 06 in the second treatment tank 02. In order to maintain the stability of the steel cable connection, two fixed pulleys 072 can be arranged respectively directly above the load-bearing plate 05 and the first filter plate 06, so as to respectively generate vertical traction forces on the load-bearing plate 05 and the first filter plate 06. The edge of the load-bearing plate 05 is designed to fit closely with the surrounding pool walls of the first treatment tank 01, so that the polluted water entering the first treatment tank 01 can all be received by the load-bearing plate 05, preventing leakage to the lower part of the load-bearing plate 05. When a connection block can be arranged at one end of the steel cable and is connected to the edge of the load-bearing plate 05, at this time, the load-bearing plate 05 is pulled directly above the load-bearing plate 05 through the steel cable, which can ensure that the load-bearing plate 05 always remains horizontal during the rising and falling processes, so that the edge of the load-bearing plate 05 always fits closely with the side walls around the first treatment tank 01 during the movement process. Similarly, through the fixed pulley 072 arranged directly above the first filter plate 06, the other end of the steel cable can be respectively connected to the edge of the first filter plate 06 through connection blocks, thereby providing a stable traction force to the edge of the first filter plate 06, so that the first filter plate 06 always remains horizontal during the rising and falling processes, so that the edge of the first filter plate 06 always remains in close contact with the side walls around the second treatment tank 02 during the movement process.

[0029] The rotating end of the rotating assembly 07, that is, the rotating shaft of the fixed pulley 072 extending towards the sliding assembly 08, can be a gear shaft. As the fixed pulley 072 rotates, the gear 073 shaft also rotates accordingly. A rack matching the output shaft is provided at one end of the sliding assembly 08 close to the second treatment tank 02. The sliding assembly 08 can slide relative to the top plate 04 along the first direction. After the gear shaft of the rotating assembly 07 meshes with the rack of the sliding assembly 08, as the gear shaft rotates, it drives the sliding assembly 08 to reciprocate along the first direction above the second treatment tank 02 and the third treatment tank 03. When the sliding assembly 08 slides, it drives the stirring assembly 09 connected thereto to also reciprocate along the first direction, so that the stirring assembly 09 stirs the polluted water in the third treatment tank 03. Here, the first direction is the direction from the second treatment tank 02 pointing to the third treatment tank 03.

[0030] Exemplarily, first, connect the first treatment tank 01 to the upstream of the agricultural pollution water source. Here, a flow guide plate or a pipeline can be used to introduce the polluted water into the first treatment tank 01. After the polluted water enters the first treatment tank 01, it relies on gravity to squeeze the load-bearing plate 05 located in the first treatment tank 01, causing it to sink and compress the first spring 10 below. At the same time, the water outlet 14 between the first treatment tank 01 and the second treatment tank 02 slowly releases the polluted water in the first treatment tank 01 into the second treatment tank 02. At the same time, an overflow tank 11 can be provided on the side of the first treatment tank 01 to receive the polluted water overflowing from the first treatment tank 01, preventing the polluted water from directly overflowing and polluting the surrounding environment outside the device. The polluted water stored on the side can be pumped out by the water pump 12 and re-injected into the first treatment tank 01 when the water level in the first treatment tank 01 drops. Next, water treatment agents such as flocculants and alum are put into the second treatment tank 02. As the agents take effect, solid impurities gradually separate from the agricultural polluted water flow. When the load-bearing plate 05 inside the first treatment tank 01 descends upon contacting the polluted water, it drives the connected rotating assembly 07 to rotate, thereby driving the first filter plate 06 located in the second treatment tank 02 to rise through the rotating assembly 07. The first filter plate 06 filters the solid impurities generated in the second treatment tank 02 and lifts them to the opening preset for cleaning the solid impurities in the second treatment tank 02. Here, a corresponding flow guide plate can be set. When the first filter plate 06 is level with the flow guide plate, the staff can use a spatula to export the solid impurities from the flow guide plate. At the same time, the filtering assembly 13 between the second treatment tank 02 and the third treatment tank 03 filters the polluted water in the second treatment tank 02 and then enters the third treatment tank 03. Finally, disinfection agents are put into the third treatment tank 03 to further treat the polluted water. At the same time, as the rotating assembly 07 rotates, it drives the sliding assembly 08 meshed with the rotating shaft of the rotating assembly 07, thereby converting the rotation of the rotating assembly 07 into the sliding motion of the sliding assembly 08 through meshing. Further, the sliding assembly 08 drives the stirring assembly 09 connected thereto to move, and the polluted water in the third treatment tank 03 is stirred through the movement of the stirring assembly 09, so as to stir the disinfectant in the third treatment tank 03 evenly. The stirring assembly 09 may include a metal hook, a rubber stirring rod 093, etc. The rubber stirring rod can fully mix and stir the polluted water in the third treatment tank 03, and can also hook up some impurities through the metal hook. After the stirring is completed, it is left standing for a period of time, and the pre-opened water outlet valve is opened, and the treated water meeting the discharge standard can be discharged. Since the water flow has reached the standard at this time, it can be re-invested in agricultural production.

[0031] It should be noted that, as Figure 1 shown, in order to prevent the polluted water in the second treatment tank 02 from returning to the first treatment tank 01 through the water outlet 14 and affecting the gravity drive system composed of the weighing plate and the spring, the height of the first treatment tank 01 can be set higher than that of the second treatment tank 02. The initial height of the first spring 10 is much higher than the water level of the second treatment tank 02. In this way, even if the polluted water in the second treatment tank 02 flows back to the first treatment tank 01 through the lower water outlet 14, there is still a certain distance between the water level and the upper bearing plate 05. Thus, when the bearing plate 05 is affected by the gravity of the newly flowing-in polluted water, there is a certain descending space, which can provide sufficient stroke and drive the first filter plate 06 located in the second treatment tank 02 to rise to a predetermined position through the rotating assembly 07. At the same time, it can also provide sufficient rotation times for the rotating shaft of the rotating assembly 07, so that the rotating shaft drives the sliding assembly 08 to have a sufficient movement stroke, thereby ensuring that the stirring assembly 09 fully stirs the third treatment tank 03.

[0032] In this embodiment, since there is a water outlet 14 provided between the first treatment tank 01 and the second treatment tank 02, the polluted water can flow smoothly from the first treatment tank 01 into the second treatment tank 02. The filtration component 13 provided between the second treatment tank 02 and the third treatment tank 03 can filter the polluted water flowing into the third treatment tank 03, remove the solid impurities in the sewage, and improve the purification degree of the sewage. Through this multi-stage treatment method, the pollutant content in the sewage can be gradually reduced, achieving a better sewage treatment effect. The rotating component 07 is arranged above the first treatment tank 01 and the second treatment tank 02 and is connected to the bottom of the top plate 04. One end of the rotating component 07 is connected to the bearing plate 05 in the first treatment tank 01, and the other end is connected to the first filter plate 06 in the second treatment tank 02. When the bearing plate 05 is subjected to the gravity of the flowing polluted water, it can drive the first filter plate 06 at the other end to move in the vertical direction through the rotating component 07. At the same time, the bearing plate 05 is connected to the bottom of the first treatment tank 01 through the first spring 10. When the bearing plate 05 is subjected to the gravity of the polluted water pressing down, the spring can be compressed and the bearing plate 05 can descend. When the polluted water on the bearing plate 05 flows out and decreases, the spring will gradually return to the initial state and lift the bearing plate 05. In the second treatment tank 02, by driving the first filter plate 06 to lift through the rotating component 07, the solid impurities in the second treatment tank 02 can be filtered out and removed, improving the filtration efficiency of the second treatment tank 02 for the solid impurities in the polluted water. The sliding component 08 is arranged above the second treatment tank 02 and the third treatment tank 03 and is slidably connected to the bottom of the top plate 04. One end of the sliding component 08 is meshed with the rotating shaft of the rotating component 07, and the other end is connected to the stirring component 09 arranged in the third treatment tank 03. Through the meshing connection relationship, the rotation of the rotating component 07 is converted into the sliding of the sliding component 08 in the horizontal direction, so that the stirring component 09 can be driven by the sliding component 08 to stir the third treatment tank 03, making the substances in the sewage fully mixed, which is beneficial to chemical reactions in the sewage treatment process, such as oxidation, neutralization, etc., and further improving the sewage treatment effect. Through the hierarchical treatment of the polluted water by the first treatment tank 01, the second treatment tank 02 and the third treatment tank 03, it is ensured that the polluted water is fully treated in each treatment, and through the cooperation of the rotating component 07 and the sliding component 08, the gravitational potential energy of the polluted water can be converted into the kinetic energy for subsequent device treatment by the bearing plate 05 and the first spring 10 in the first treatment tank 01, so that the first filter plate 06 can filter the solid impurities in the second treatment tank 02, and the stirring component 09 can stir the polluted water in the third treatment tank 03, thus realizing the rapid and efficient treatment of the polluted water.

[0033] Optionally, as Figures 1 to 4As shown, the rotating assembly 07 includes a connecting member 071 and a fixed pulley 072. The fixed pulley 072 is fixedly connected to the bottom end of the top plate 04. One end of the connecting member 071 is connected to the load-bearing plate 05, and the other end of the connecting member 071 passes through the fixed pulley 072 and is connected to the first filter plate 06. The connecting member 071 is configured to drive the first filter plate 06 at the other end to perform relative lifting and lowering movements along the vertical direction through the load-bearing plate 05 at one end, and drive the fixed pulley 072 to rotate.

[0034] Specifically, the connecting member 071 in the rotating assembly 07 can be made of high-strength materials such as steel cables. One end is connected to the load-bearing plate 05 in the first treatment tank 01 through a connecting block, and the other end bypasses the fixed pulley 072 fixed to the bottom end of the top plate 04 and is connected to the first filter plate 06 in the second treatment tank 02 through a connecting block, forming a fixed pulley 072 transmission system. When agricultural polluted water flows into the first treatment tank 01, the water flow relies on gravity to squeeze the load-bearing plate 05 to sink. The load-bearing plate 05 pulls one end of the connecting member 071 to descend. Based on the principle of the fixed pulley 072 changing the direction of force, the other end of the connecting member 071 drives the first filter plate 06 to rise synchronously; conversely, when the load-bearing plate 05 in the first treatment tank 01 resets and rises under the action of the first spring 10, the first filter plate 06 correspondingly descends under the action of its own gravity. In this process, the reciprocating movement of the connecting member 071 drives the fixed pulley 072 to continuously rotate, providing power input for the subsequent operation of the sliding assembly 08.

[0035] In this optional embodiment, driven by the gravity of the polluted water flow itself, without the need for additional power energy supply, a green and energy-saving treatment method is realized. Through the linkage between the load-bearing plate 05 and the first filter plate 06, the gravitational potential energy of the polluted water in the first treatment tank 01 is converted into the mechanical energy of the lifting and lowering of the first filter plate 06 in the second treatment tank 02, so that while the polluted water is initially precipitated, the impurity interception and cleaning in the second treatment tank 02 are automatically completed, improving the treatment efficiency of the polluted water.

[0036] Optionally, as Figures 1 to 4 shown, one end of the rotating shaft of the fixed pulley 072 is provided with a rotating gear 073. A rack is correspondingly arranged at one end of the sliding assembly 08 close to the second treatment tank 02. The rotating gear 073 meshes with the rack. The rotating gear 073 is configured to drive the sliding assembly 08 to perform reciprocating movements along the first direction, where the first direction is the direction from the second treatment tank 02 to the third treatment tank 03.

[0037] Specifically, a rotating gear 073 is provided at one end of the rotating shaft of the fixed pulley 072, and a rack meshing with the same is correspondingly provided at one end of the sliding assembly 08 near the second treatment tank 02, and the two constitute a set of gear rack transmission mechanism. When the bearing plate 05 sinks under the gravity of the polluted water in the first treatment tank 01, it drives the connecting member 071 to move, prompting the fixed pulley 072 to rotate, and the rotating gear 073 connected to the rotating shaft of the fixed pulley 072 also rotates synchronously. Since the rotating gear 073 is tightly meshed with the rack, the rotational movement of the rotating gear 073 converts the rotational force into the horizontal movement of the rack and the sliding assembly 08 along the first direction through the interaction force between the teeth, that is, the linear reciprocating movement of the sliding assembly 08 from the second treatment tank 02 to the direction of the third treatment tank 03.

[0038] In this optional embodiment, the rotating gear 073 of the rotating shaft of the fixed pulley 072 is meshed with the rack of the sliding assembly 08, so that the circular motion of the fixed pulley 072 is cleverly converted into the linear motion of the sliding assembly 08, without the need for an additional power device, and the gravitational potential energy generated by the flow of polluted water is fully utilized, reducing energy consumption, and the precise meshing transmission of the gear rack ensures the stability and accuracy of the movement of the sliding assembly 08, so that the sliding assembly 08 can reciprocate according to the set path, thereby driving the stirring assembly 09 installed at the other end to stir the third treatment pool 03, ensuring that the disinfectant in the third treatment pool 03 is fully mixed with the polluted water, thereby improving the purification effect. Through the coordination of the gear and the rack, the complex control system and components are reduced, the failure rate and maintenance cost of the device are reduced, the continuity and reliability of the operation of the entire treatment device are enhanced, and the treatment efficiency of agricultural polluted water is improved.

[0039] Alternatively, if Figures 1 to 3 The sliding assembly 08 includes a linkage plate 081 and a supporting slider 082. The top plate 04 is provided with a slide groove extending along the first direction. The linkage plate 081 is slidably connected to the slide groove through the supporting slider 082. One end of the linkage plate 081 is meshed with the rotating gear 073 through a set rack, and the other end of the linkage plate 081 is connected to the stirring assembly 09.

[0040] Specifically, the linkage plate 081 is a core component, one end of which is equipped with a rack meshing with the rotating gear 073, and the other end is connected to the stirring assembly 09, and a sliding pair is formed in the middle through the support slider 082 and the slide groove opened along the first direction on the top plate 04. When the fixed pulley 072 rotates to drive the rotating gear 073 to rotate, the rack converts the circular motion of the gear into the linear motion of the linkage plate 081, and the support slider 082 slides smoothly in the slide groove, providing stable support and guidance for the reciprocating motion of the linkage plate 081.

[0041] In this alternative embodiment, the cooperation between the supporting slider 082 and the chute greatly reduces the frictional resistance during movement, enabling the linkage plate 081 to slide flexibly and efficiently along a predetermined direction, reducing energy loss, and improving the transmission efficiency. The guiding function of the chute ensures the accuracy of the movement trajectory of the linkage plate 081, ensuring that the stirring assembly 09 can accurately reciprocate and stir in the third treatment tank 03, avoiding inaccurate stirring of the third treatment tank 03 caused by movement deviation, enhancing the treatment effect of the polluted water in the third treatment tank 03, and further improving the treatment efficiency and quality of the polluted water.

[0042] Optionally, as Figure 2 and 3 shown, the stirring assembly 09 includes a connecting mechanism 091, a support rod 092, and a stirring rod 093. One end of the connecting mechanism 091 is connected to the sliding assembly 08, the other end of the connecting mechanism 091 is connected to the middle of the support rod 092, and the stirring rod 093 extending into the third treatment tank 03 is arranged below the support rod 092.

[0043] In this alternative embodiment, one end of the connecting mechanism 091 is connected to the linkage plate 081 of the sliding assembly 08, and the other end is connected to the middle of the support rod 092. A stirring rod 093 extending vertically into the third treatment tank 03 is arranged below the support rod 092. The stirring rod 093 can include structures such as a rubber stirring rod and a metal hook. When the sliding assembly 08 moves linearly in the first direction driven by the rotating gear 073 and the rack, the connecting mechanism 091 will drive the support rod 092 to move synchronously, and then the stirring rod 093 below the support rod 092 will stir in the polluted water of the third treatment tank 03. Through the connection between the connecting mechanism 091 and the sliding assembly 08, efficient transmission of power is achieved, enabling the stirring rod 093 to make full use of the movement energy of the sliding assembly 08 without an additional power source, reducing the energy consumption of the equipment.

[0044] Optionally, as Figure 2 、 3As shown in FIGS. 0 and 5, the connecting mechanism 091 includes a support tube 0911, a sliding rod 0912, a linkage rod 0913, and a second spring 0914. One end of the support tube 0911 is connected to the sliding assembly 08. A sliding rod 0912 is disposed inside the support tube 0911. One end of the sliding rod 0912 is connected to the bottom of one end of the support tube 0911 through the second spring 0914. The other end of the sliding rod 0912 extends out of the other end of the support tube 0911 and is connected to the support rod 092. A linkage groove is axially formed on the side wall of the support tube 0911. One end of the linkage rod 0913 passes through the linkage groove and is connected to the sliding rod 0912. The side wall of the linkage rod 0913 is slidably connected to a corrugated plate 16 suspended at the bottom of the top plate 04. The corrugated plate 16 is configured to convert the movement of the linkage rod 0913 in the first direction into a movement in the vertical direction through a corrugated structure connected to the linkage rod 0913 when the sliding rod 0912 drives the linkage rod 0913 to move in the first direction, where the first direction is the direction from the second treatment tank 02 to the third treatment tank 03.

[0045] Specifically, one end of the support tube 0911 is connected to the sliding assembly 08, and the internally nested sliding rod 0912 is elastically connected to the bottom of the support tube 0911 through the second spring 0914 to form an axial buffer structure. The other end of the sliding rod 0912 extends out of the support tube 0911 and is connected to the middle of the support rod 092, and the support rod 092 is horizontally arranged. A linkage groove is axially formed on the side wall of the support tube 0911, and the width of the linkage groove matches the diameter of the linkage rod 0913. One end of the linkage rod 0913 passes through the linkage groove and is connected to the sliding rod 0912 therein. Thus, when the linkage rod 0913 moves along the radial direction of the linkage groove, it can drive the sliding rod 0912 inside the support tube 0911 to move along the radial direction of the support tube 0911. Since the support tube 0911 is vertically arranged, the sliding rod 0912 also moves up and down along the vertical direction. At the same time, when the sliding rod 0912 moves along the first direction, it will also drive the linkage rod 0913 to move along the first direction. A corrugated plate 16 for hanging and changing is arranged at the bottom of the top plate 04. The length direction of the corrugated plate 16 is along the first direction, and corrugations are arranged at the top of the side of the corrugated plate 16 close to the top plate 04. The side wall of the linkage rod 0913 is slidably connected to the corrugations at the top of the corrugated plate 16. Thus, when the stirring assembly 09 moves along the first direction as the sliding assembly 08 slides, the linkage rod 0913 is driven to move along the first direction through the sliding rod 0912 inside the support tube 0911, so that the linkage rod 0913 also moves above the corrugated plate 16. The undulation of the corrugations forces the linkage rod 0913 to generate a vertical displacement, and further drives the sliding rod 0912 to perform an axial telescopic movement inside the support tube 0911, so that the support rod 092 and the stirring rod 093 connected thereto also perform vertical movements. Finally, through the superposition of horizontal and vertical movements, the stirring rod 093 forms a three-dimensional stirring trajectory in the third treatment tank 03.

[0046] In this alternative embodiment, the corrugated plate 16 converts the single horizontal linear motion along the first direction into a complex three-dimensional motion, greatly improving the stirring uniformity. At the same time, through the elastic buffering effect of the second spring 0914, the impact load during the movement is effectively absorbed, the vibration and noise of the equipment are reduced, and the service life of the components is prolonged. Through the three-dimensional stirring method, the eddies and dead zones in the water body can be effectively broken, and the treatment efficiency of the polluted water in the third treatment tank 03 is improved.

[0047] Optionally, as Figures 1 to 3 shown, the polluted water treatment device further includes: A first guide plate 17, one end of the first guide plate 17 is connected to the inlet of the first treatment tank 01, and the other end of the first guide plate is used for connecting to a polluted water source; and / or The second deflector 18, a sewage outlet 15 is provided on the side wall of the second treatment tank 02, the second deflector 18 is connected to the sewage outlet 15, and the second deflector 18 is configured to export the solid impurities through the second deflector 18 when the first filter plate 06 lifts the solid impurities to the sewage outlet 15.

[0048] Specifically, the polluted water can be introduced into the first treatment tank 01 through the first deflector 17. One end of the first deflector 17 is connected to the inlet of the first treatment tank 01, and the other end is directly docked to the agricultural polluted water source, which can stably and efficiently introduce the agricultural polluted water into the first treatment tank 01. Similarly, the solid impurities filtered out from the second treatment tank 02 can also be exported through the second deflector 18. First, a corresponding sewage outlet 15 is provided above the side wall of the second treatment tank 02, and one end of the second deflector 18 is connected to the sewage outlet 15. When the first filter plate 06 drives by the rotating assembly 07 and lifts the solid impurities separated during the treatment process to the height of the sewage outlet 15 through the first filter plate 06, the second deflector 18 can be used as a channel for discharging the solid impurities. Tools such as a scraper can be used to directly scrape the solid impurities on the filter mesh plate onto the second deflector 18 for export.

[0049] In this optional embodiment, the stability and efficiency of the polluted water input are ensured through the first deflector 17, avoiding the problem of reduced treatment efficiency caused by unstable water flow, while reducing the labor intensity of manually guiding the water flow and effectively improving the transportation efficiency of the polluted water. The second deflector 18 realizes the rapid export of solid impurities, avoiding the accumulation of a large amount of solid impurities in the second treatment tank 02 and effectively improving the treatment efficiency of the polluted water.

[0050] Optionally, overflow tanks 11 are respectively arranged on both sides of the first treatment tank 01, an overflow port is provided on the side wall of the first treatment tank 01 connected to the overflow tank 11, and a water pump 12 is arranged in the overflow tank 11. The water pump 12 is used to pump out the polluted water that overflows from the first treatment tank 01 to the overflow tank 11 through the overflow port.

[0051] Specifically, the overflow pools 11 are symmetrically distributed on both sides of the first treatment pool 01, and the two are connected through the overflow outlets on the side walls. The position of the overflow outlets can be set according to the water level height of the polluted water that can be actually treated in the first treatment pool 01. When a large amount of agricultural polluted water surges into the first treatment pool 01 or the polluted water in the second treatment pool 02 flows back into the first treatment pool 01, causing its water level to exceed its normal treatment water level, the excess water will automatically flow into the overflow pools 11 on both sides through the overflow outlets. The water pumps 12 equipped in the overflow pools 11 can pump out the polluted water in the overflow pools 11 and re - transport it to the first treatment pool 01 after the water supply of the first treatment pool 01 returns to normal. By using the overflow pools 11 to receive the overflowing polluted water, it can prevent the sewage from overflowing from the first treatment pool 01 due to too high water level and pollute the surrounding environment, and at the same time, effectively collect and treat the excess polluted water.

[0052] In this alternative embodiment, by setting the overflow pools 11, the ability of the device to cope with the fluctuation of the polluted water flow is effectively improved. When a large amount of polluted water surges in a short time, through the cooperation of the overflow pools 11 and the water pumps 12, the stable operation of the device can be ensured, the collapse of the treatment system can be avoided, and at the same time, the secondary pollution problem caused by sewage overflow can be prevented, protecting the surrounding soil and water ecological environment. Moreover, the polluted water collected in the overflow pools 11 can be pumped back into the treatment process through the water pumps 12 to achieve circular treatment, improving the utilization rate of water resources and the treatment efficiency, and reducing the treatment cost.

[0053] Optionally, as Figure 2 and 6 shown, the filtration component 13 includes a lifting plate 131, a second filter plate 132 and a linkage block 133. A communication port is opened between the second treatment pool 02 and the third treatment pool 03. The second filter plate 132 is clamped in the communication port. The lifting plate 131 is slidably connected to the first filter plate 06. The bottom of the lifting plate 131 is connected to the second filter plate 132 through the linkage block. The lifting plate 131 is configured to control the polluted water in the second treatment pool 02 to enter the third treatment pool 03 as the first filter plate 06 rises and falls.

[0054] In this alternative embodiment, a linkage system composed of a lifting plate 131, a second filter plate 132, and a linkage block 133 precisely regulates the water flow channel between the second treatment tank 02 and the third treatment tank 03. The second filter plate 132 is tightly clamped at the communication port between the second treatment tank 02 and the third treatment tank 03, forming a physical interception barrier to effectively block large particulate impurities from entering the subsequent treatment process. The bottom of the lifting plate 131 is connected to the first filter plate 06 through the linkage block 133, forming a mechanical linkage mechanism. When the first filter plate 06 is driven by the rotating assembly 07 to rise, the linkage block 133 synchronously drives the lifting plate 131 to slide upward, gradually opening the communication port, so that the polluted water preliminarily filtered by the first filter plate 06 can smoothly flow into the third treatment tank 03 after secondary filtration by the second filter plate 132. Conversely, when the first filter plate 06 descends, the lifting plate 131 closes the communication port accordingly, pausing the water flow. The automatic opening and closing of the communication port are realized through the linkage of the first filter plate 06 and the lifting plate 131, without additional power and control systems, reducing the equipment complexity and energy consumption. The dual filtering effect of the second filter plate 132 (intercepting impurities and controlling water flow) effectively improves the pollutant removal efficiency. Experimental data show that the concentration of suspended solids can be reduced by more than 40%. Thirdly, the precise opening and closing control of the lifting plate 131 avoid the interference of water flow impact on the disinfection effect of the third treatment tank 03, ensuring sufficient reaction between the disinfectant and the sewage. Fourthly, the compact design of the linkage structure saves space, making the device more suitable for decentralized sewage treatment scenarios in the fields. Fifthly, the sliding cooperation between the second filter plate 132 and the lifting plate 131 reduces wear, extends the service life, and reduces the maintenance cost. This component realizes the precise regulation of the treatment process and the improvement of water quality through mechanical wisdom, providing an innovative solution for the efficient treatment of agricultural polluted water.

[0055] As Figure 7 shown, an agricultural polluted water treatment method provided by an embodiment of the present invention is based on the above-mentioned agricultural polluted water treatment device. The agricultural screening and filtering method includes S100. When the polluted water enters the first treatment tank 01 and the load-bearing plate 05 descends under the action of gravity, the first filter plate 06 in the second treatment tank 02 is driven by the rotating assembly 07 to rise to filter the solid impurities in the second treatment tank 02, and the rotating end of the rotating assembly 07 drives the stirring assembly 09 connected to the sliding assembly 08 to stir the polluted water in the third treatment tank 03. S200. When the polluted water flows out of the first treatment tank 01, the load-bearing plate 05 rises under the elastic force of the first spring 10, the first filter plate 06 descends to re-filter the solid impurities in the second treatment tank 02, and the rotating end drives the stirring assembly 09 connected to the sliding assembly 08 to stir the polluted water in the third treatment tank 03.

[0056] Specifically, when the polluted water flows into the first treatment tank 01, the gravitational force of the water flow acts on the load-bearing plate 05, causing it to gradually sink while overcoming the elastic force of the first spring 10. The downward movement of the load-bearing plate 05 transmits the force to the first filter plate 06 in the second treatment tank 02 through the rotating assembly 07, driving the first filter plate 06 to rise synchronously by means of the rotating assembly 07. At this time, the first filter plate 06 filters the solid impurities in the second treatment tank 02, separating the solid impurities in the second treatment tank 02. Meanwhile, through the engagement of the rotating shaft of the rotating assembly 07 with the sliding assembly 08, as the rotating shaft rotates, the sliding assembly 08 reciprocates along the direction pointing from the second treatment tank 02 to the third treatment tank 03, thereby driving the stirring assembly 09 connected to the sliding assembly 08 to stir the polluted water in the third treatment tank 03, accelerating the treatment and purification process in the third treatment tank 03.

[0057] Furthermore, after the polluted water in the first treatment tank 01 has gradually flowed out, the load-bearing plate 05 rises and resets under the elastic force of the first spring 10. The upward movement of the load-bearing plate 05 drives the rotating shaft to rotate again through the rotating assembly 07. At the same time, the filter plate in the second treatment tank 02 also drops to the bottom of the second treatment tank 02 to filter the solid impurities in the polluted water in the second treatment tank 02 again. The rotation of the rotating shaft drives the sliding assembly 08 engaged with it to move, and the sliding assembly 08 still drives the stirring assembly 09 to continuously stir the polluted water in the third treatment tank 03, maintaining the stable progress of disinfection and purification.

[0058] In this embodiment, the entire system is driven by the gravitational force of the water flow, without the need for additional electricity or a complex control system, greatly reducing the operating cost and energy consumption. Moreover, the linkage between the load-bearing plate 05 and the first filter plate 06 realizes the automatic cycle of solid-liquid separation of the polluted water, without manual intervention, improving the impurity treatment efficiency and avoiding the errors and safety risks that may be brought by manual operation. Through the cooperation of the rotating assembly 07 and the sliding assembly 08, the stirring assembly 09 continuously stirs in the third treatment tank 03, ensuring the full treatment of the polluted water in the third treatment tank 03 and enhancing the purification effect.

[0059] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. An agricultural pollution water treatment device, characterized in that, It includes a first treatment tank (01), a second treatment tank (02), a third treatment tank (03), a top plate (04), a load-bearing plate (05), a first filter plate (06), a first spring (10), a sliding assembly (08), a rotating assembly (07) and a stirring assembly (09). An outlet (14) is provided vertically between the first treatment tank (01) and the second treatment tank (02). A filtering assembly (13) is provided between the second treatment tank (02) and the third treatment tank (03). The top plate (04) is arranged above the first treatment tank (01), the second treatment tank (02) and the third treatment tank (03). The rotating assembly (07) is arranged above the first treatment tank (01) and the second treatment tank (02) and is connected to the bottom of the top plate (04). The sliding assembly (08) is arranged above the second treatment tank (02) and the third treatment tank (03) and is slidably connected to the bottom of the top plate (04). One end of the rotating assembly (07) is connected to the load-bearing plate (05) arranged in the first treatment tank (01). The load-bearing plate (05) is connected to the bottom of the first treatment tank (01) through the first spring (10). The other end of the rotating assembly (07) is connected to the first filter plate (06) arranged in the second treatment tank (02). The rotating end of the rotating assembly (07) meshes with one end of the sliding assembly (08) close to the second treatment tank (02). One end of the sliding assembly (08) close to the third treatment tank (03) is connected to the stirring assembly (09). The stirring assembly (09) is used for stirring the polluted water in the third treatment tank (03).

2. The agricultural pollution water treatment device according to claim 1, characterized in that, The rotating assembly (07) includes a connecting piece (071) and a fixed pulley (072). The fixed pulley (072) is fixedly connected to the bottom end of the top plate (04). One end of the connecting piece (071) is connected to the load-bearing plate (05). The other end of the connecting piece (071) passes through the fixed pulley (072) and is connected to the first filter plate (06). The connecting piece (071) is configured to drive the first filter plate (06) at the other end to move up and down vertically through the load-bearing plate (05) at one end and drive the fixed pulley (072) to rotate.

3. The agricultural pollution water treatment device according to claim 2, wherein, One end of the rotating shaft of the fixed pulley (072) is provided with a rotating gear (073). A rack is correspondingly arranged at one end of the sliding assembly (08) close to the second treatment tank (02). The rotating gear (073) meshes with the rack. The rotating gear (073) is configured to drive the sliding assembly (08) to reciprocate in a first direction. Wherein, the first direction is the direction from the second treatment tank (02) to the third treatment tank (03).

4. The agricultural pollution water treatment device according to claim 3, characterized in that, The sliding component (08) includes a linkage plate (081) and a support slider (082). The top plate (04) is provided with a chute extending along the first direction. The linkage plate (081) is slidably connected to the chute through the support slider (082). One end of the linkage plate (081) is engaged with the rotating gear (073) through the provided rack, and the other end of the linkage plate (081) is connected to the stirring component (09).

5. The agricultural pollution water treatment device according to claim 1, characterized in that, The stirring component (09) includes a connecting mechanism (091), a support rod (092), and a stirring rod (093). One end of the connecting mechanism (091) is connected to the sliding component (08), and the other end of the connecting mechanism (091) is connected to the middle of the support rod (092). Below the support rod (092), there is the stirring rod (093) extending into the third treatment tank (03).

6. The agricultural pollution water treatment device according to claim 5, characterized in that, The connecting mechanism (091) includes a support tube (0911), a sliding rod (0912), a linkage rod (0913), and a second spring (0914). One end of the support tube (0911) is connected to the sliding component (08). A sliding rod (0912) is arranged inside the support tube (0911). One end of the sliding rod (0912) is connected to the bottom of one end of the support tube (0911) through the second spring (0914). The other end of the sliding rod (0912) extends out of the other end of the support tube (0911) and is connected to the support rod (092). The side wall of the support tube (0911) is provided with a linkage groove along the axial direction. One end of the linkage rod (0913) passes through the linkage groove and is connected to the sliding rod (0912). The side wall of the linkage rod (0913) is slidably connected to a corrugated plate (16) suspended at the bottom of the top plate (04). The corrugated plate (16) is configured to convert the movement of the linkage rod (0913) in the first direction into a movement in the vertical direction through a corrugated structure connected to the linkage rod (0913) when the sliding rod (0912) drives the linkage rod (0913) to move in the first direction. Herein, the first direction is the direction pointing from the second treatment tank (02) to the third treatment tank (03).

7. The agricultural pollution water treatment device according to claim 1, characterized in that, It further includes: A first diversion plate (17), one end of the first diversion plate (17) is connected to the inlet of the first treatment tank (01), and the other end of the first diversion plate (17) is for connecting to a polluted water source; and / or A second diversion plate (18), a sewage discharge port (15) is provided on the side wall of the second treatment tank (02). The second diversion plate (18) is connected to the sewage discharge port (15). The second diversion plate (18) is configured to export the solid impurities through the second diversion plate (18) when the first filter plate (06) lifts the solid impurities to the sewage discharge port (15).

8. The agricultural pollution water treatment device according to claim 1, characterized in that, Overflow pools (11) are respectively arranged on both sides of the first treatment pool (01). An overflow port is arranged on the side wall of the first treatment pool (01) connected to the overflow pool (11). A water pump (12) is arranged in the overflow pool (11), and the water pump (12) is used to pump out the polluted water that overflows from the first treatment pool (01) to the overflow pool (11) through the overflow port.

9. The agricultural pollution water treatment device according to claim 1, characterized in that, The filtering assembly (13) includes a lifting plate (131), a second filter plate (132) and a linkage block (133). A communication port is formed between the second treatment pool (02) and the third treatment pool (03). The second filter plate (132) is clamped in the communication port. The lifting plate (131) is slidably connected to the first filter plate (06). The bottom of the lifting plate (131) is connected to the second filter plate (132) through the linkage block (133). The lifting plate (131) is configured to control the entry of the polluted water in the second treatment pool (02) into the third treatment pool (03) as the first filter plate (06) rises and falls.

10. A method for treating agricultural polluted water, characterized in that, Based on the agricultural polluted water treatment device according to any one of claims 1 to 9, the agricultural polluted water treatment method includes: After the polluted water enters the first treatment pool (01), when the load-bearing plate (05) descends under the action of gravity, the first filter plate (06) in the second treatment pool (02) is driven to rise through the rotating assembly (07) to filter the solid impurities in the second treatment pool (02), and the stirring assembly (09) connected to the sliding assembly (08) is driven by the rotating end of the rotating assembly (07) to stir the polluted water in the third treatment pool (03); After the polluted water flows out of the first treatment pool (01), the load-bearing plate (05) rises under the elastic force of the first spring (10), and the first filter plate (06) descends to re-filter the solid impurities in the second treatment pool (02), and the stirring assembly (09) connected to the sliding assembly (08) is driven by the rotating end to stir the polluted water in the third treatment pool (03).

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