A farmland soil pollution remediation device

Abstract

This invention provides a farmland soil pollution remediation device, relating to the technical field of soil pollution remediation devices. It includes a tiller with a front-mounted harvesting assembly at its front and a fixed support frame at its rear. Two fixed discs are mounted on both sides of the rear end of the fixed support frame. At least two second tillage blades and a first tillage blade are fixedly mounted on both sides of each fixed disc. A drive motor on the fixed support frame starts and drives a drive shaft to rotate via two first gears. The rotation of the drive shaft rotates the two fixed discs, which in turn rotate the second and first tillage blades on both sides. The rotation of the second and first tillage blades excavates the farmland soil. When the second and first tillage blades rotate and contact the pesticide discharge chamber, they cause the pesticide inside the chamber to fall, entering the farmland soil and improving the soil remediation capability.

Description

Technical Field

[0001] This invention belongs to the technical field of soil pollution remediation devices, and more specifically, relates to a farmland soil pollution remediation device. Background Art

[0002] In the field of farmland soil remediation and tillage, current technologies have many drawbacks, which seriously affect soil remediation effectiveness, tillage efficiency, and resource utilization.

[0003] Traditional soil remediation spraying equipment generally suffers from the problem of "top-level application without soil penetration." Most of these devices can only spray the agent onto the soil surface, making it difficult for the agent to penetrate deep into the soil. This results in the agent failing to fully contact pollutants in the soil and exert its remediation effect, leading to low agent utilization, resource waste, and an inability to effectively improve soil remediation capabilities.

[0004] Existing tillage equipment has limited capabilities in turning and breaking up soil. The conventional tillage blades are not designed in a reasonable way, making it difficult to fully break up and turn over soils of different textures. In particular, the tillage effect is poor for sticky soils, which cannot effectively improve soil structure and affect the crop growth environment.

[0005] In terms of pesticide discharge and control, traditional equipment lacks a precise and efficient pesticide discharge mechanism. Without a reasonable structural design to coordinate pesticide application with tillage, it cannot accurately control the discharge location and amount based on tillage depth and soil conditions, easily leading to pesticide waste or insufficient dosage, and making it difficult to ensure uniform distribution of pesticides in the soil.

[0006] Existing technologies for improving soil aeration are relatively limited. In particular, for clay soils, there is a lack of effective methods to improve their aeration, thereby promoting the penetration of water and pesticides and meeting the oxygen requirements of crop roots.

[0007] When dealing with soil remediation in arid regions, traditional equipment cannot simultaneously address both water replenishment and pesticide application. In arid areas where soil is water-deficient, failure to replenish water concurrently during soil remediation not only affects the dissolution of remediation agents and the activity of microorganisms, but may also lead to pesticide runoff, further reducing the remediation effect.

[0008] Meanwhile, traditional farmland operation equipment usually separates functions such as pesticide spraying and tilling, which is cumbersome and inefficient, and cannot complete multiple tasks in one operation, increasing labor and time costs.

[0009] In summary, existing farmland soil management and tillage technologies have significant shortcomings in terms of pesticide penetration depth, soil aeration capacity, precise pesticide emission control, soil permeability improvement, adaptability to arid regions, and operational efficiency, making it difficult to meet the needs of modern agriculture for efficient soil management, precise remediation, and comprehensive improvement. Summary of the Invention

[0010] To address the aforementioned technical problems, this invention provides a farmland soil pollution remediation device.

[0011] A farmland soil pollution remediation device includes a tiller with a front-mounted harvesting assembly at its front and a fixed support frame at its rear. Two fixed discs are mounted on both sides of the rear end of the fixed support frame. At least two second tillage blades and a first tillage blade are fixedly mounted on both sides of each fixed disc. Chemical discharge chambers are fixedly mounted on both sides of the front end of the fixed support frame. Two side-inflatable bladders are fixedly mounted on the front of each chemical discharge chamber. Discharge components are provided inside and at the bottom of each chemical discharge chamber. When the second and first tillage blades rotate and contact the discharge components at the bottom of the chemical discharge chamber, the chemical inside the chemical discharge chamber falls out.

[0012] Preferably, each of the pesticide discharge chambers has a pesticide pipe fixedly installed on its top, and each pesticide pipe is connected to a pesticide chamber inside the tiller. Each of the pesticide discharge chambers has an upper partition fixedly installed inside, and each of the pesticide discharge chambers has a lower discharge frame fixedly installed at its bottom. Two discharge components are fixedly fixed at the openings below the upper partition and the lower discharge frame, respectively. Two arc-shaped baffles are fixedly installed on the inner wall of each pesticide discharge chamber. The two arc-shaped baffles are staggered vertically and horizontally inside the pesticide discharge chamber. The exhaust holes on the back of each side inflation airbag are located inside the pesticide discharge chamber.

[0013] Preferably, each of the discharge components further includes two tilting plates, a second gear, and a track. A rotating shaft is rotatably mounted between each tilting plate and the bottom of the lower discharge frame and the upper partition. The ends of the two rotating shafts protrude through the outside of the drug discharge chamber. A second gear is fixedly mounted on the end of the rotating shaft protruding outside the drug discharge chamber. The track is mounted between the two second gears. Two springs are fixedly mounted on the top of each tilting plate and between the lower discharge frame and the upper partition. Outer protruding rods are fixedly mounted on the side walls of the two tilting plates located below the lower discharge frame.

[0014] Preferably, an upper guard plate is fixedly installed above the fixed support frame, a fixed compartment is fixedly installed in the middle of the rear end of the fixed support frame, a drive motor is fixedly installed inside the fixed compartment, a drive shaft is rotatably installed through the fixed support frame below the drive motor, a first gear is fixedly installed on the outer ring of the drive shaft and the end of the drive motor, and the two first gears mesh vertically, the end of each second tillage blade and the first tillage blade is curved into a "J" shape, a razor is fixedly installed on the side wall near the end of each second tillage blade and the first tillage blade, a sloping groove is opened above each razor, a duckbill frame is fixedly installed on the side wall of each second tillage blade and the first tillage blade below the razor, and at least two spray pipes are fixedly installed at the end of each duckbill frame.

[0015] Preferably, two first gears are fixedly mounted on the surface of the drive shaft. Both first gears are located between two fixed discs and are connected to each of the second tillage blades and the first tillage blades on both sides. Each first gear has two air chambers and two liquid chambers inside. The two air chambers are connected to the first tillage blades by air pipes, and the two liquid chambers are connected to the second tillage blades by water pipes.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this invention, the tiller moves within the farmland, driving the front harvesting assembly forward. The front harvesting assembly first clears the vegetation in the farmland. The movement of the tiller then moves the rear fixed support frame. The drive motor on the fixed support frame starts, driving the drive shaft to rotate via two first gears. The rotation of the drive shaft drives two fixed discs to rotate, which in turn drives the second and first tilling blades on both sides to rotate. The rotation of the second and first tilling blades digs the farmland soil. When the second and first tilling blades rotate and come into contact with the pesticide discharge chamber, they cause the pesticide inside the discharge chamber to fall. The falling pesticide enters the farmland soil, which can improve the soil remediation and restoration capabilities.

[0018] In this invention, the second and first tillage blades come into contact with the side-inflating air bladder when they rotate. The air bladder is then compressed, and the air inside is expelled into the pesticide discharge chamber, increasing the air pressure. After the second and first tillage blades leave the side-inflating air bladder, it re-inflates through the bottom air inlet. Because the lower discharge rack at the bottom of the pesticide discharge chamber is funnel-shaped, the pesticide, after falling from the upper partition, will land at the outlet of the lower discharge rack, where it will be discharged onto the second tillage blade. As the first tillage blade continues to rotate and opens the discharge assembly at the bottom of the lower discharge frame, the high air pressure in the discharge chamber causes the pesticide to spray downwards rapidly. At the same time, the second and first tillage blades turn over the farmland soil, allowing the pesticide to penetrate into the soil. While turning the soil, the second and first tillage blades break up the soil, and the pesticide is precisely sprayed to the bottom of the furrow (5-20cm), solving the problem of "surface application without soil penetration" in traditional spraying equipment, and increasing the pesticide utilization rate by 40%.

[0019] In this invention, the pesticide compartment of the tiller contains a repair agent via a pesticide discharge pipe. The second and first tiller blades rotate to the front of the tilting plate below the lower discharge frame. Continued rotation drives two tilting plates to rotate via two protruding rods. Both tilting plates rotate outside two rotating shafts. Simultaneously, the rotation of the two tilting plates stretches the upper springs, causing the rotating shafts to rotate. The rotating shafts then drive the second gear to rotate, which in turn drives the two tilting plates below the upper partition to rotate via the tracks. At this point, the lower part of the upper partition opens, allowing the repair agent to fall from it. During its descent, the medication comes into contact with two curved baffles, which slow down its descent. When the medication reaches the lower rack, two flip-up plates below the rack are closed by springs. By using a track to control the upper baffle and the two flip-up plates below the lower rack, they can be opened simultaneously without additional power. When the two lower flip-up plates close, the two flip-up plates below the upper baffle close synchronously, thus controlling the amount of medication administered. The two curved baffles inside the medication discharge chamber prevent the medication from falling too quickly and dropping directly from below the lower rack, avoiding duplicate administration.

[0020] In this invention, the second tillage blade and the first tillage blade rotate simultaneously to till the farmland soil. Both the second tillage blade and the first tillage blade are curved "J" shapes, so the soil can be broken up better during tillage. At the same time, the razor blades on the side walls of the second tillage blade and the first tillage blade can turn over the stickier soil, thereby improving the tillage ability and the ability to break up the soil.

[0021] In this invention, the air chamber is equipped with an air pump. When the second and first tillage blades break up the soil, the air chamber drives the first tillage blade to deliver high-pressure gas through its drive axis. The gas passes through the first tillage blade and the duckbill frame. Multiple jet pipes at the end of the duckbill frame compress the gas and spray it out. The high-pressure gas is sprayed onto the turned-out soil. The airflow can instantly disturb the soil microstructure and form "aerosol channels," creating conditions for subsequent water and pesticide penetration. This is especially suitable for improving the permeability of clay soils. The liquid chamber is equipped with a water pump. Water (which can be replaced with pesticide) is pre-filled in the liquid chamber. The water is pumped into the second tillage blade through a water pipe and then sprayed out through the duckbill frame and jet pipes at the end of the second tillage blade. The liquid seeps into the tillage layer along the blade surface and mixes quickly with the turned-out subsoil, avoiding pesticide loss caused by surface runoff. For arid areas, water can be replenished simultaneously to promote the dissolution of the remediation agent and the activity of microorganisms. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the tillage machine structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the second tillage blade of the present invention;

[0024] Figure 3 This is a schematic diagram of the fixed support frame structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the drive shaft structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the first tillage blade of the present invention;

[0027] Figure 6 This is the present invention. Figure 5 A schematic diagram of the enlarged structure at point A;

[0028] Figure 7 This is a schematic diagram of the liquid tank structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the lower rack structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the emission component structure of the present invention.

[0031] In the diagram, the correspondence between the component names and the attached drawing numbers is as follows: 1. Tiller; 11. Front harvesting assembly; 12. Fixed support frame; 13. Fixed compartment; 14. Drive motor; 15. Drive shaft; 16. First gear; 17. Fixed disc; 18. First tillage blade; 2. Razor; 21. Inclined groove; 22. Duckbill frame; 23. Spray pipe; 24. Air chamber; 25. Air pipe; 26. Liquid chamber; 27. Water pipe; 28. Second tillage blade; 29. ​​Chemical pipe; 3. Chemical discharge chamber; 31. Upper partition; 32. Arc-shaped baffle; 33. Side airbag; 34. Lower discharge frame; 4. Discharge assembly; 41. Rotating shaft; 42. Second gear; 43. Track; 44. Spring; 45. Tilting plate; 46. Outer protruding rod; 47. Upper guard plate. Detailed Implementation

[0032] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0033] Please see Figures 1-9This invention provides a farmland soil pollution remediation device, including a tiller 1. A front harvesting assembly 11 is provided on the front side of the tiller 1. A fixed support frame 12 is installed on the rear side of the tiller 1. Two fixed discs 17 are installed on both sides of the rear end of the fixed support frame 12. An upper guard plate 47 is fixedly installed on the top of the fixed support frame 12. A fixed chamber 13 is fixedly installed in the middle of the rear end of the fixed support frame 12. A drive motor 14 is fixedly installed inside the fixed chamber 13. A drive shaft 15 is rotatably installed through the fixed support frame 12 located below the drive motor 14. A first gear 16 is fixedly installed on the outer ring of the drive shaft 15 and the end of the drive motor 14, and the two first gears 16 mesh vertically. Each fixed disc 17 is fixedly sleeved outside the drive shaft 15. At least two second tillage blades 28 and a first tillage blade 18 are fixedly installed on both sides of each fixed disc 17. A pesticide discharge chamber 3 is fixedly installed on both sides of the front end of the fixed support frame 12. Two side airbags 33 are fixedly installed on the front side of each pesticide discharge chamber 3. Each pesticide discharge chamber 3 has a discharge component 4 installed inside and at its bottom. When the second tillage blade 28 and the first tillage blade 18 rotate and contact the discharge component 4 at the bottom of the pesticide discharge chamber 3, the pesticide inside the pesticide discharge chamber 3 falls out. During use, the tiller 1 moves in the farmland, driving the front harvesting component 11 forward. The front harvesting component 11 first clears the plants in the farmland. The movement of the tiller 1 drives the rear fixed support frame 12 to move. The drive motor 14 on the fixed support frame 12 starts and drives the two... A gear 16 drives the drive shaft 15 to rotate, which in turn drives two fixed discs 17 to rotate. The rotation of the two fixed discs 17 drives the second tillage blades 28 and the first tillage blades 18 on both sides to rotate. The rotation of the second tillage blades 28 and the first tillage blades 18 will dig the farmland soil. When the second tillage blades 28 and the first tillage blades 18 rotate and come into contact with the pesticide discharge chamber 3, they will cause the pesticide inside the pesticide discharge chamber 3 to fall. The falling pesticide enters the farmland soil, which can improve the soil remediation and restoration capabilities.

[0034] In this embodiment, as Figure 3 , Figure 4 and Figure 8Each pesticide discharge chamber 3 has a pesticide pipe 29 fixedly installed on its top, and each pesticide pipe 29 is connected to the pesticide chamber inside the tiller 1. Each pesticide discharge chamber 3 has an upper partition 31 fixedly installed inside, and a lower discharge frame 34 fixedly installed at the bottom of each pesticide discharge chamber 3. Two discharge components 4 are fixedly fixed at the openings below the upper partition 31 and the lower discharge frame 34, respectively. The exhaust port on the back of each side airbag 33 is located inside the pesticide discharge chamber 3, and an air inlet is provided below the side airbag 33. One-way air valves are provided in the holes on the back and bottom of the side airbag 33. During use, the second tillage blade 28 and the first tillage blade 18 will contact the side airbag 33 when rotating. At this time, the side airbag 33 is compressed, and the air inside the side airbag 33 is discharged into the pesticide discharge chamber 3. At this time, the air pressure inside the pesticide discharge chamber 3 increases. After the second tillage blade 28 and the first tillage blade 18 leave the side inflation bag 33, the side inflation bag 33 is re-inflated through the air inlet at the bottom. Since the lower discharge frame 34 at the bottom of the pesticide discharge chamber 3 is funnel-shaped, the pesticide will fall at the outlet of the lower discharge frame 34 after falling from the upper partition 31. When the second tillage blade 28 and the first tillage blade 18 continue to rotate and open the discharge component 4 at the bottom of the lower discharge frame 34, the pesticide discharge chamber 3 will quickly spray the pesticide downward due to the large air pressure. At the same time, the second tillage blade 28 and the first tillage blade 18 turn over the farmland soil, and the pesticide can penetrate into the soil. When turning the soil, the second tillage blade 28 and the first tillage blade 18 break up the soil and repair the pesticide, which is accurately sprayed to the bottom of the furrow (5-20cm), solving the problem of "surface application without soil penetration" of traditional spraying equipment, and improving the pesticide utilization rate by 40%.

[0035] In this embodiment, as Figure 3 , Figure 4 , Figure 8 and Figure 9Each agent discharge chamber 3 has two arc-shaped baffles 32 fixedly installed on its inner wall. The two arc-shaped baffles 32 are staggered vertically and horizontally inside the agent discharge chamber 3. Each discharge assembly 4 also includes two tilting plates 45, a second gear 42, and a track 43. Each tilting plate 45, the lower discharge frame 34, and the bottom of the upper partition plate 31 are rotatably mounted with a rotating shaft 41. The ends of the two rotating shafts 41 protrude through the agent discharge chamber 3. The ends of the rotating shafts 41 protruding from the agent discharge chamber 3 are fixedly mounted with a second gear 42. 43 is installed between the two second gears 42. Two springs 44 are fixedly installed above each tilting plate 45 and between the lower rack 34 and the upper partition 31. Outer protruding rods 46 are fixedly installed on the side walls of the two tilting plates 45 located below the lower rack 34. During use, the pesticide compartment of the tiller 1 discharges repair pesticide into the pesticide discharge compartment 3 through the pesticide pipe 29. The second tilling blade 28 and the first tilling blade 18 rotate to the front side of the tilting plate 45 below the lower rack 34. Continued rotation will drive the two tilting plates 45 to rotate through the two outer protruding rods 46. Both tilting plates 45 rotate outside the two rotating shafts 41. Simultaneously, the rotation of the two tilting plates 45 stretches the upper spring 44. The rotation of the tilting plates 45 drives the rotating shafts 41 to rotate, which in turn drives the second gear 42 to rotate. The rotation of the second gear 42, via the track 43, drives the two tilting plates 45 below the upper partition 31 to rotate. At this time, the lower part of the upper partition 31 opens, and the repair agent falls from the upper partition 31. During its descent, the repair agent contacts two arc-shaped baffles 32, which slow down the falling speed of the agent. When the drug falls to the lower rack 34, the two flip plates 45 below the lower rack 34 are closed by the spring 44. By using the track 43 to control the upper partition 31 and the two flip plates 45 below the lower rack 34, they can be opened simultaneously without additional power. When the two flip plates 45 below the lower rack close, the two flip plates 45 below the upper partition 31 close simultaneously, which plays a role in controlling the dosage of the drug. The two arc-shaped baffles 32 in the drug discharge chamber 3 can prevent the drug from falling too fast and falling directly from below the lower rack 34, thus avoiding duplicate drug administration.

[0036] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6Each second tillage blade 28 and the first tillage blade 18 has a curved "J" shape at its end. A razor 2 is fixedly installed on the side wall near the end of each second tillage blade 28 and the first tillage blade 18. A sloping groove 21 is opened on the top of each razor 2. A duckbill frame 22 is fixedly installed on the side wall of each second tillage blade 28 and the first tillage blade 18 located below the razor 2. At least two spray pipes 23 are fixedly installed at the end of each duckbill frame 22. When in use, the second tillage blades 28 and the first tillage blades 18 rotate simultaneously to turn the farmland soil. Since the second tillage blades 28 and the first tillage blades 18 are curved "J" shapes, the soil can be better broken up during tillage. At the same time, the razor 2 on the side wall of the second tillage blades 28 and the first tillage blades 18 can turn out the stickier soil. The sloping groove 21 opened on the razor 2 can help the soil to be discharged, thereby improving the tillage ability and the ability to break up the soil.

[0037] In this embodiment, as Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 Two first gears 16 are fixedly mounted on the surface of the drive shaft 15. Both first gears 16 are located between two fixed discs 17 and are connected to each of the second tillage blades 28 and the first tillage blade 18 on both sides. Each first gear 16 has two air chambers 24 and two liquid chambers 26 inside. Air pipes 25 connect the two air chambers 24 to the first tillage blades 18, and water pipes 27 connect the two liquid chambers 26 to the second tillage blades 28. During use, an air pump is installed inside the air chamber 24. When the second tillage blades 28 and the first tillage blades 18 break up the soil, the air chamber 24 delivers high-pressure gas to the inside of the first tillage blades 18 through the drive shaft 15. The gas passes through the first tillage blades 18 and the duckbill frame 2... 2. Multiple jet pipes 23 at the end of the duckbill frame 22 compress and eject the gas. The high-pressure gas is sprayed onto the turned soil, and the airflow can instantly disturb the soil microstructure, forming "aerodynamic channels" to create conditions for subsequent water and pesticide penetration. It is especially suitable for improving the permeability of clay soil. The liquid tank 26 is equipped with a water pump. The liquid tank 26 is filled with water in advance (which can be replaced with pesticide). The water tank 26 is pumped into the second tillage blade 28 through the water pipe 27 by the water pump, and then sprayed out through the duckbill frame 22 and jet pipes 23 at the end of the second tillage blade 28. The liquid seeps into the tillage layer along the blade surface and mixes quickly with the turned subsoil, avoiding pesticide loss caused by surface runoff. In arid areas, water can be added at the same time to promote the dissolution of the remediation agent and the activity of microorganisms.

[0038] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A farmland soil pollution remediation device, comprising a tiller (1), wherein a front-mounted harvesting assembly (11) is provided on the front side of the tiller (1), characterized in that: A fixed support frame (12) is installed on the rear side of the tiller (1). A drive shaft (15) is rotatably installed inside the rear end of the fixed support frame (12). Two fixed discs (17) are fixedly sleeved on the surface of the drive shaft (15). At least two second tillage blades (28) and a first tillage blade (18) are fixedly installed on both sides of each fixed disc (17). A pesticide discharge chamber (3) is fixedly installed on both sides of the front end of the fixed support frame (12). Two side airbags are fixedly installed on the front side of each pesticide discharge chamber (3). 33), each of the pesticide discharge chambers (3) is provided with a discharge assembly (4) inside and at the bottom. When the second tillage blade (28) and the first tillage blade (18) rotate and contact the discharge assembly (4) at the bottom of the pesticide discharge chamber (3), the pesticide inside the pesticide discharge chamber (3) falls out. Each of the pesticide discharge chambers (3) is fixedly installed with an upper partition (31) inside and a lower discharge frame (34) is fixedly installed at the bottom of each pesticide discharge chamber (3). The two discharge assemblies (4) are respectively fixed to the upper partition (31) and the lower discharge frame (34). 4) At the lower opening, two arc-shaped baffles (32) are fixedly installed on the inner wall of each of the drug discharge chambers (3). The two arc-shaped baffles (32) are staggered vertically and horizontally inside the drug discharge chamber (3). The exhaust holes on the back of each of the side airbags (33) are located inside the drug discharge chamber (3). Each discharge assembly (4) also includes two flip plates (45), a second gear (42) and a track (43). A rotating mechanism is rotatably installed between each of the flip plates (45) and the bottom of the lower discharge frame (34) and the upper partition (31). The ends of the two rotating shafts (41) protrude through the drug discharge chamber (3). The ends of the rotating shafts (41) protruding from the drug discharge chamber (3) are fixedly equipped with second gears (42). The track (43) is installed between the two second gears (42). Two springs (44) are fixedly installed above each of the flip plates (45) and between the lower discharge frame (34) and the upper partition (31). The side walls of the two flip plates (45) located below the lower discharge frame (34) are fixedly equipped with protruding rods (46).

2. The farmland soil pollution remediation device as described in claim 1, characterized in that, Each of the above-mentioned pesticide discharge chambers (3) is fixedly equipped with a pesticide pipe (29) on its top, and each pesticide pipe (29) is connected to the pesticide chamber inside the tiller (1).

3. The farmland soil pollution remediation device as described in claim 1, characterized in that, An upper guard plate (47) is fixedly installed above the fixed support frame (12). A fixed compartment (13) is fixedly installed in the middle of the rear end of the fixed support frame (12). A drive motor (14) is fixedly installed inside the fixed compartment (13). A first gear (16) is fixedly installed on the outer ring of the drive shaft (15) and the end of the drive motor (14), and the two first gears (16) mesh up and down.

4. The farmland soil pollution remediation device as described in claim 3, characterized in that, Each of the second tillage blades (28) and the first tillage blade (18) has a curved "J" shape at the end. Each of the second tillage blades (28) and the first tillage blade (18) has a razor (2) fixedly installed on the side wall near the end. Each razor (2) has a sloping groove (21) on its upper side. Each of the second tillage blades (28) and the first tillage blade (18) located below the razor (2) has a duckbill frame (22) fixedly installed on the side wall. Each duckbill frame (22) has at least two spray pipes (23) fixedly installed at its end.

5. The farmland soil pollution remediation device as described in claim 4, characterized in that, Two first gears (16) are fixedly mounted on the surface of the drive shaft (15). Both first gears (16) are located between two fixed discs (17), and both first gears (16) are connected to each second tillage blade (28) and first tillage blade (18) on both sides.

6. The farmland soil pollution remediation device as described in claim 5, characterized in that, Each of the first gears (16) has two air chambers (24) and two liquid chambers (26) inside. The two air chambers (24) are connected to the first tillage blade (18) by an air pipe (25), and the two liquid chambers (26) are connected to the second tillage blade (28) by a water pipe (27).

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