Farmland soil pollution remediation device and remediation method

By designing a farmland soil pollution remediation device with a mobile frame and rotating cylinder structure, and using a toggle component to clean up residual film and evenly distribute soil remediation particles, the problem of uneven soil remediation is solved, achieving a more thorough soil remediation effect.

CN121869842APending Publication Date: 2026-04-17河南中原科创高新技术研究院有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
河南中原科创高新技术研究院有限公司
Filing Date
2026-01-15
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing farmland soil remediation devices suffer from uneven and incomplete soil remediation when dealing with buried residual film.

Method used

A farmland soil pollution remediation device was designed, which adopts a mobile frame and rotating drum structure. The residual film is cleaned by a rotating component, and the soil remediation particles are evenly distributed by a conveying component to ensure that the soil remediation particles can be fully absorbed.

Benefits of technology

It achieves uniform soil remediation, prevents uneven remediation caused by residual film smudges, and improves the effectiveness of soil remediation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of soil remediation, and discloses a farmland soil pollution remediation device which comprises a movable frame and a storage box installed above the movable frame, and the storage box is used for storing soil remediation particles; mounting supports are fixed to the two inner side walls of the movable frame correspondingly, and a discharging opening in the bottom of the storage box is connected with a feeding opening fixed to the upper portions of the mounting supports in a sealed mode through a discharging pipe. The same rotary drum is rotationally mounted between the two mounting supports, and a plurality of groups of shifting assemblies extending to the outside of the moving frame are mounted on the rotary drum; in the rotating process of the front moving structure, the first transmission assembly can drive the rotary drum to rotate between the two mounting supports in the positive direction, so that the rotary drum drives the multiple stirring assemblies to rotate and clean out residual films in soil, and the phenomenon that the soil is blocked by the residual films can be prevented; and the soil can fully absorb the soil remediation particles.
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Description

Technical Field

[0001] This invention relates to the field of soil remediation technology, specifically to a farmland soil pollution remediation device and method. Background Technology

[0002] Farmland soil pollution refers to the phenomenon where human factors cause certain substances to enter the topsoil of land, causing changes in the chemical, physical, and biological properties of the soil, thereby affecting the soil's function and effective utilization, endangering public health, or damaging the ecological environment. The main sources of farmland soil pollution include the improper use of chemical fertilizers and pesticides, soil erosion, etc. Among them, excessive application of chemical fertilizers will lead to the accumulation of nutrients in the soil and disrupt the soil ecological balance, while excessive use of pesticides will cause residues to enter the soil and poison the soil ecosystem. Soil erosion and wind erosion will weaken soil fertility and affect water quality.

[0003] Currently, farmland remediation typically involves using remediation devices to sprinkle soil remediation particles onto the farmland, which then remediate the soil. However, during farmland soil remediation, some residual film is often buried in the soil. The soil in the areas covered by the residual film cannot absorb the soil remediation particles, which can easily lead to uneven and incomplete soil remediation.

[0004] Therefore, we propose a farmland soil pollution remediation device and method to address the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problems mentioned above.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A farmland soil pollution remediation device includes a movable frame and a storage box mounted on top of the movable frame, the storage box being used to store soil remediation particles; two inner sidewalls of the movable frame are respectively fixed with mounting supports, and the discharge port at the bottom of the storage box is sealed to the inlet fixed on top of the mounting supports via a discharge pipe; a common rotating cylinder is rotatably mounted between the two mounting supports, and several sets of actuating components extending outside the movable frame are mounted on the rotating cylinder; both ends of the rotating cylinder are respectively connected to a front moving component mounted in front of the movable frame via a first transmission component; the front moving component travels on the farmland. At that time, the first transmission component drives the rotating drum to rotate, so that the rotating drum drives several actuating components to rotate and clean the residual film buried in the soil; the inside of the rotating drum is equipped with a conveying component in a rotating manner, and the two ends of the conveying component extend to the outside of the moving frame and are respectively equipped with second transmission components, and the second transmission components are connected to the rear moving component installed behind the moving frame; when the rear moving component travels on the farmland, it drives the conveying component to rotate inside the rotating drum through the second transmission component and conveys the soil remediation particles, so that the soil remediation particles are put into the soil through several actuating components and remediate the soil.

[0007] Furthermore: the front moving component includes a first rotating shaft rotatably mounted below the moving frame, one end of the first rotating shaft is fixed with a first moving wheel, and the first moving wheel is located outside the moving frame, the first moving wheel being used to drive the moving frame to move.

[0008] Furthermore: the first transmission assembly includes a first main gear fixed to the other end of the first rotating shaft, the first main gear meshing with a first auxiliary gear fixed to the end of the rotating drum, and the first main gear and the first auxiliary gear are located inside the moving frame.

[0009] Furthermore, the actuating assembly includes a fixed mounting sleeve fixed on the rotating drum, and a plurality of actuating plates are fixed at equal intervals along the circumferential direction on the mounting sleeve, with some of the actuating plates extending to the outside of the movable frame.

[0010] Furthermore: the conveying assembly includes a conveying shaft located inside the rotating drum, and the conveying shaft is coaxially arranged with the rotating drum. Spiral blades are symmetrically fixed on the conveying shaft, and the outer edge of the spiral blades is fitted against the inner sidewall of the rotating drum; one end of each of the two spiral blades extends into the interior of the mounting support.

[0011] Furthermore: the rear moving assembly includes a bidirectional motor installed within the moving frame, with two output ends of the bidirectional motor respectively fixed to a second rotating shaft, and one end of each of the two second rotating shafts extending to the outside of the moving frame and fixed to a second moving wheel.

[0012] Furthermore: the second transmission assembly includes a second main gear fixed to the end of the second rotating shaft and a second auxiliary gear fixed to the end of the conveying shaft, and the second main gear and the second auxiliary gear are respectively located outside the moving frame, and the same chain is installed between the second main gear and the second auxiliary gear.

[0013] Furthermore: the actuating plate is provided with a feeding channel, the rotating drum is provided with a discharge port, and the feeding channel is connected to the discharge port.

[0014] Furthermore, an inwardly recessed receiving groove is provided on the upper front side of the movable frame, and the storage box can be detachably installed inside the receiving groove.

[0015] A method for remediating farmland soil pollution, applied to the farmland soil pollution remediation device as described in any one of claims; characterized in that it includes the following steps: S1: Pre-fill the storage tank with soil remediation granules; First, soil remediation particles are placed inside the storage tank so that they fall through the feed pipe into the interior of the mounting support or the end of the rotating drum. S2: After startup, move the component to make the moving frame travel over the farmland; S201: Turn on the bidirectional motor, and the two outputs of the bidirectional drive motor will drive the second rotating shaft to rotate respectively; S202: The two second rotating shafts can drive the rear moving wheels to rotate, so that the mobile frame can travel on farmland; S203: The two second rotating shafts can also drive the same conveying component through the second transmission component, so that the conveying component can drive the soil remediation particles to be conveyed to the center of the rotating drum; ensuring that the soil remediation particles are evenly distributed.

[0016] S3: The front moving component travels over the farmland, ensuring the smooth movement of the moving frame; S301: During the movement of the mobile frame over the farmland, the two first moving wheels rotate to ensure that the mobile frame moves smoothly over the farmland. S302: When the first moving wheel drives the first rotating shaft to rotate, the first transmission component drives the rotating drum to rotate between the two mounting supports. The rotating drum can drive several actuating components to rotate and clean the residual film in the soil. S4: When cleaning the residual film by moving the component, fill the soil with soil remediation particles; As each actuating plate cleans the residual film, some soil remediation particles fall into the soil through the discharge port and discharge channel, ensuring that the soil remediation particles fully remediate the farmland soil.

[0017] The beneficial effects of this invention are: During the rotation of the front moving structure of this invention, the first transmission component drives the rotating drum to rotate in the positive direction between two mounting supports. This causes the rotating drum to drive several actuating components to rotate and clean out residual film in the soil, preventing the soil from being blocked by residual film and allowing the soil to fully absorb the soil remediation particles. When the rear moving structure drives the conveying structure to rotate in the opposite direction via the second transmission component, the conveying structure can transport the soil remediation particles to the center of the rotating drum. This allows the soil remediation particles to be placed into the soil through several actuating components, enabling the soil to fully absorb them and preventing the soil from being blocked by residual film and thus unable to absorb them. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram of the interior of the movable frame in this invention; Figure 3 This is a cross-sectional schematic diagram of the movable frame in this invention; Figure 4 This is a cross-sectional schematic diagram of the rotating cylinder in this invention; Figure 5 This is a front view schematic diagram of the feed inlet in this invention; Figure 6 This is a front view of the toggle component in this invention; Figure 7 This is a cross-sectional schematic diagram of the toggle component in this invention.

[0019] The names corresponding to each mark in the diagram: 1. Moving frame; 2. Storage box; 3. Mounting support; 4. Feed inlet; 5. Discharge pipe; 6. Rotary drum; 601. Drop outlet; 7. Actuating assembly; 701. Mounting sleeve; 702. Actuating plate; 8. First transmission assembly; 801. First main gear; 802. First auxiliary gear; 9. Forward moving assembly; 901. First rotating shaft; 902. First moving wheel; 10. Conveying assembly; 1001. Conveying shaft; 1002. Spiral blade; 11. Second transmission assembly; 1101. Second main gear; 1102. Second auxiliary gear; 1103. Chain; 12. Rear moving assembly; 1201. Bidirectional motor; 1202. Second rotating shaft; 1203. Second moving wheel; 13. Receiving groove. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0021] A farmland soil pollution remediation device includes a mobile frame 1. The rear of the mobile frame 1 is equipped with a push handle 14, which facilitates the movement of the mobile frame 1 and provides convenience for workers. The head of the mobile frame 1 is equipped with an inwardly recessed receiving groove 13, and the inside of the receiving groove 13 is a storage box 2 with an open top, which is used to store soil remediation particles. It should be noted that the storage box 2 is connected to the mobile frame 1 by several fixing bolts (not marked in the figure), which reinforces the storage box 2 and effectively prevents the storage box 2 from falling off during use.

[0022] The lower part of the mobile frame 1 is provided with a front moving component 9 and a rear moving component 12. It should be noted that there are two front moving components 9, and the two front moving components 9 are located on both sides of the head of the frame 1. The rear moving component 12 is located at the tail of the mobile frame 1. Through the cooperation of the front moving components 9 and the rear moving component 12, the mobile frame 1 can move on the farmland, which saves time and effort and provides convenience for farmers.

[0023] In detail: The rear moving assembly 12 includes a bidirectional motor 1201 installed inside the moving frame 1. It should be noted that a fixed support 15 is fixed to the inner bottom wall of the moving frame 1, and the bidirectional motor 1201 is fixed to the fixed support 15. The fixed support 15 provides support for the bidirectional motor 1201. Two second rotating shafts 1202 are fixed to the two drive ends of the bidirectional motor 1201, and the ends of the second rotating shafts 1202 extend to the outside of the moving frame 1 and are fixed with second moving wheels 1203. It should be noted that a bearing (not shown in the figure) is fixed at the connection between the second rotating shaft 1202 and the moving frame 1. The bearing allows the second rotating shaft 1202 to rotate more smoothly. The rear moving assembly 12 enables the moving frame 1 to move electrically, further reducing effort. In detail: the front moving component 9 includes a first rotating shaft 901 rotatably mounted below the moving frame 1. It should be noted that a bearing (not shown in the figure) is fixed at the connection between the first rotating shaft 901 and the moving frame 1, so that the first bearing 901 can rotate more smoothly on the moving frame 1; one end of the first rotating shaft 901 extends to the outside of the moving frame 1 and a first moving wheel 902 is fixed thereon. Through the setting of the front moving component 9, the moving frame 1 can move more smoothly on the farmland, ensuring the stability of the repair device.

[0024] The two inner walls of the movable frame 1 are respectively fixed with mounting supports 3. It should be noted that the top of the mounting support 3 is provided with a feed inlet 4, and the feed inlet 4 is sealed to the discharge port at the bottom of the storage box 2 through a discharge pipe 5, so that the soil remediation particles in the storage box 2 fall into the mounting support 3 through the discharge pipe 5. The same rotating drum 6 is rotatably mounted between the two mounting supports 3. It should be noted that the end of the rotating drum 6 is connected to the first rotating shaft 901 through the first transmission assembly 8. When the first transmission shaft 901 rotates, the rotating drum 6 can be driven by the first transmission assembly 8. The rotating part of the rotating cylinder 6 is equidistantly mounted with several actuating components 7, and the head of the moving frame 1 is provided with several combing grooves 101. When the actuating part of the actuating component 7 rotates to the lower or front, it can clean the residual film buried in the ground and prevent the residual film from blocking the volatilization effect of the soil remediation particles. If the actuating part of the actuating component 7 rotates into the interior of the moving frame 1, the combing grooves 101 can clean the residual film hanging on the actuating component 7 and prevent the residual film from entering the moving frame 1 and causing damage.

[0025] In detail: The first transmission assembly 8 includes a first main gear 801 fixed at the other end of the first transmission shaft 901, and a first auxiliary gear 802 fixed at the end of the rotating drum 6. The first auxiliary gear 802 and the first main gear 801 are meshed and located inside the moving frame 1. Through the cooperation of the first main gear 801 and the first auxiliary gear 802, the transmission function is achieved, which can ensure the normal operation of the rotating drum 6. Under normal circumstances: An inner protective cover (not shown in the figure) is fixed to the inner side wall of the moving frame 1, and the first main gear 801 and the first auxiliary gear 802 are located inside the protective cover. The protective cover protects the first main gear 801 and the first auxiliary gear 802, preventing soil from entering the first main gear 801 or the first auxiliary gear 802 and causing damage.

[0026] In detail: the actuating component 7 includes a mounting sleeve 701 fixed on the circumferential surface of the rotating drum 6. Each mounting sleeve 701 has several actuating plates 702 fixed at equal intervals along the circumferential direction. When the actuating plate 702 rotates to the lower part or the head of the moving frame 1, the moving frame 702 extends to the outside of the moving frame 1 and cleans the residual film in the soil. Inside the rotating drum 6, a conveying assembly 10 is rotatably installed. At both ends of the conveying assembly 10, a second transmission assembly 11 is installed to cooperate with the second rotating shaft 1202. Through the setting of the second transmission assembly 11, the two second rotating shafts 1202 can drive the conveying assembly 10 in the opposite direction during rotation, so that the conveying assembly 10 can convey the soil remediation particles to the middle part of the rotating drum 6, ensuring that the soil remediation particles are evenly distributed.

[0027] In detail: The conveying assembly 10 includes a conveying shaft 1001 located inside the rotating drum 6, and the conveying shaft 1001 is coaxially arranged with the rotating drum 6. Spiral blades 1002 are symmetrically fixed on the conveying shaft 1001. Through the arrangement of the spiral blades 1002, soil remediation particles can be conveyed, and the outer edge of the spiral blades 1002 is fitted with the inner sidewall of the rotating drum 6. One end of each of the two spiral blades 1002 extends into the interior of the mounting support 3, so that the spiral blades 1002 can convey soil particles that fall into the mounting support 3. In detail: The second transmission assembly 11 includes a second main gear 1101 fixed to the end of the second rotating shaft 1202 and a second auxiliary gear 1102 fixed to the end of the conveying shaft 1001. The second main gear 1101 and the second auxiliary gear 1102 are located outside the movable frame 1, and the same chain 1103 is installed between the second main gear 1101 and the second auxiliary gear 1102. Through the arrangement of the second transmission assembly 11, the conveying assembly 10 can be rotated in a counterclockwise direction. It should be noted that: the two outer side walls of the movable frame 1 are respectively equipped with outer protective covers (not shown in the figure), and the second main gear 1101, the second auxiliary gear 1102 and the chain 1103 are located inside the outer protective covers to prevent soil from damaging the second main gear 1101, the second auxiliary gear 1102 or the chain 1103.

[0028] It is worth noting that the actuating plate 702 is provided with a feeding channel 703, and the rotating drum 6 is provided with a discharge port 601, and the feeding channel 703 and the discharge port 601 are connected. When the actuating plate 702 rotates to the lower part, the soil remediation particles fall into the soil through the discharge port 601 and the feeding channel 703, so that the soil remediation particles can be fully utilized and the phenomenon of being blocked by residual film and affecting the utilization of soil remediation particles can be effectively prevented.

[0029] When remediating contaminated farmland soil, this soil remediation device can be used. For details, please refer to the following steps: S1: Pre-fill the storage box 2 with soil remediation particles; First, add soil remediation particles into the storage tank 2, filling it to 1 / 3 to 4 / 5 full; do not overfill to prevent leakage during the movement of the mobile frame 1; some of the soil remediation particles located at the bottom of the storage tank 2 fall through the discharge pipe 5 into the interior of the mounting support 3 or the end of the rotating drum 6. S2: After starting, move component 12 to make the moving frame 1 move on the farmland; S201: Turn on the bidirectional motor 1201. The two outputs of the bidirectional drive motor 1201 drive the second rotating shaft 1202 to rotate respectively. S202: The two second rotating shafts 1202 can drive the rear moving wheels 1203 to rotate, so that the moving frame 1 can move on the farmland; thus, it can replace the traditional manual method with mechanical means, which saves time and effort and provides convenience for the staff.

[0030] S203: The two second rotating shafts 1202 can also drive the same conveying component 10 through the second transmission component 11, so that the conveying component 10 rotates in the opposite direction in the rotating drum 6 and drives the soil remediation particles to be conveyed to the center of the rotating drum 6; ensuring that the soil remediation particles are evenly distributed.

[0031] S3: The front moving component 9 travels on the farmland, ensuring the smooth movement of the moving frame 1; S301: During the movement of the mobile frame 1 on the farmland, the two first moving wheels 902 rotate to make the mobile frame 1 move smoothly on the farmland and prevent the mobile frame 1 from tilting or falling over during the movement.

[0032] S302: When the first moving wheel 902 drives the first rotating shaft 901 to rotate, the first transmission component 8 drives the rotating drum 6 to rotate in the positive direction between the two mounting supports 3. The rotating drum 6 can drive several actuating components 7 to rotate and clean the residual film in the soil; to prevent the residual film from affecting the full utilization of the effect.

[0033] S4: When cleaning the residual film by moving component 7, fill the soil with soil remediation particles; When each actuating plate 702 cleans the residual film in the soil, some soil remediation particles fall into the soil through the discharge port 601 and the discharge channel 703 in sequence, ensuring that the soil remediation particles fully remediate the soil in the farmland.

Claims

1. A farmland soil pollution remediation device, comprising a movable frame (1) and a storage box (2) installed above the movable frame (1), wherein the storage box (2) is used to store soil remediation particles; characterized in that; The two inner walls of the movable frame (1) are respectively fixed with mounting supports (3), and the discharge port at the bottom of the storage box (2) is sealed to the inlet (4) fixed above the mounting support (3) through the discharge pipe (5); the same rotating cylinder (6) is rotatably installed between the two mounting supports (3), and several sets of actuating components (7) extending to the outside of the movable frame (1) are installed on the rotating cylinder (6); the two ends of the rotating cylinder (6) are respectively connected to the front moving component (9) installed in front of the movable frame (1) through the first transmission component (8); when the front moving component (9) moves on the farmland, it drives the rotating cylinder (6) to rotate through the first transmission component (8) so that the rotating cylinder (6) rotates. 6) Drive several actuating components (7) to rotate and clean the residual film buried in the soil; the inside of the rotating drum (6) is equipped with a conveying component (10) in a rotating manner, and the two ends of the conveying component (10) extend to the outside of the moving frame (1) and are respectively equipped with a second transmission component (11), and the second transmission component (11) is connected to the rear moving component (12) installed behind the moving frame (1); when the rear moving component (12) travels on the farmland, it drives the conveying component (10) to rotate in the rotating drum (6) through the second transmission component (11) and conveys the soil remediation particles, so that the soil remediation particles are put into the soil through several actuating components (7) and remediate the soil.

2. The farmland soil pollution remediation device according to claim 1, characterized in that: The front moving assembly (9) includes a first rotating shaft (901) rotatably mounted below the moving frame (1), one end of the first rotating shaft (901) is fixed with a first moving wheel (902), and the first moving wheel (902) is located outside the moving frame (1). The first moving wheel (902) is used to drive the moving frame (1) to move.

3. The farmland soil pollution remediation device according to claim 2, characterized in that: The first transmission assembly (8) includes a first main gear (801) fixed at the other end of the first rotating shaft (901), the first main gear (801) meshing with a first auxiliary gear (802) fixed at the end of the rotating drum (6), and the first main gear (801) and the first auxiliary gear (802) are located inside the moving frame (1).

4. The farmland soil pollution remediation device according to claim 1, characterized in that: The actuating assembly (7) includes a fixed mounting sleeve (701) fixed on the rotating drum (6), and a plurality of actuating plates (702) are fixed at equal intervals along the circumferential direction on the mounting sleeve (701), and some of the actuating plates (702) extend to the outside of the moving frame (1).

5. The farmland soil pollution remediation device according to claim 1, characterized in that: The conveying assembly (10) includes a conveying shaft (1001) located inside the rotating drum (6), and the conveying shaft (1001) is coaxially arranged with the rotating drum (6). Spiral blades (1002) are symmetrically fixed on the conveying shaft (1001), and the outer edge of the spiral blades (1002) is fitted with the inner sidewall of the rotating drum (6). One end of each of the two spiral blades (1002) extends into the interior of the mounting support (3).

6. The farmland soil pollution remediation device according to claim 5, characterized in that: The rear moving assembly (12) includes a bidirectional motor (1201) installed in the moving frame (1). The two output ends of the bidirectional motor (1201) are respectively fixed with a second rotating shaft (1202). One end of each of the two second rotating shafts (1202) extends to the outside of the moving frame (1) and is fixed with a second moving wheel (1203).

7. The farmland soil pollution remediation device according to claim 6, characterized in that: The second transmission assembly (11) includes a second main gear (1101) fixed at the end of the second rotating shaft (1202) and a second auxiliary gear (1102) fixed at the end of the conveying shaft (1001). The second main gear (1101) and the second auxiliary gear (1102) are located outside the moving frame (1), and the same chain (1103) is installed between the second main gear (1101) and the second auxiliary gear (1102).

8. The farmland soil pollution remediation device according to claim 7, characterized in that: The actuating plate (702) has a feeding channel (703), and the rotating drum (6) has a discharge port (601), and the feeding channel (703) is connected to the discharge port (601).

9. The farmland soil pollution remediation device according to claim 1, characterized in that: The upper front side of the movable frame (1) is provided with an inwardly recessed receiving groove (13), and the storage box (2) is detachably installed inside the receiving groove (13).

10. A method for remediating farmland soil pollution, applied to the farmland soil pollution remediation device according to any one of claims 1-9; characterized in that: Includes the following steps: S1: Soil remediation particles are pre-placed inside the storage box (2); First, soil remediation particles are placed into the storage tank (2) so that the soil remediation particles fall through the feed pipe (5) into the interior of the mounting support (3) or the end of the drum (6); S2: After starting, move the component (12) to make the moving frame (1) move on the farmland; S201: Turn on the bidirectional motor (1201), and the two outputs of the bidirectional drive motor (1201) will drive the second rotating shaft (1202) to rotate respectively; S202: The two second rotating shafts (1202) can drive the rear moving wheels (1203) to rotate so that the moving frame (1) can travel on the farmland; S203: The two second rotating shafts (1202) can also drive the same conveying assembly (10) through the second transmission assembly (11), so that the conveying assembly (10) can drive the soil remediation particles to the center of the rotating drum (6); ensuring that the soil remediation particles are evenly distributed; S3: The front moving component (9) travels on the farmland to ensure the smooth movement of the moving frame (1); S301: During the movement of the mobile frame (1) on the farmland, the two first moving wheels (902) rotate to make the mobile frame (1) move smoothly on the farmland; S302: When the first moving wheel (902) drives the first rotating shaft (901) to rotate, the first transmission component (8) drives the rotating drum (6) to rotate between the two mounting supports (3). The rotating drum (6) can drive several actuating components (7) to rotate and clean the residual film in the soil. S4: When the component (7) is cleaning the residual film, soil remediation particles are filled into the soil; When each actuating plate (702) cleans the residual film, some soil remediation particles fall into the soil through the discharge port (601) and the discharge channel (703) in sequence, ensuring that the soil remediation particles fully remediate the soil of the farmland.