Corn soil returning device and flow for preventing and controlling pests

Abstract

The invention relates to a corn soil returning device and process for pest control. The corn soil returning device comprises a cleaning vehicle body. The soil collector is used for collecting soil with set depth; a collecting assembly and a net covering assembly are arranged at the front end and the rear end of the cleaning vehicle body correspondingly. The collecting assembly is used for collecting the ploughed soil, and the net covering assembly is used for flatly laying a net pad piece in the soil; the soil turning device is matched with a deep ploughing machine and used for turning soil with set depth; a collecting trolley is further matched and used for transporting soil collected by the collecting assembly. A secondary treatment assembly is also matched and is used for carrying out secondary treatment on the collected soil; a backfilling vehicle body is also matched and is used for returning the treated soil to the field; the cleaning vehicle body comprises a frame body; the frame body is provided with walking wheels; the device is reasonable in design, compact in structure and convenient to use.

Description

Technical Field

[0001] The invention relates to a corn soil returning device and process for preventing and controlling pests, and is particularly suitable for large-scale corn planting in the northeast region where pests and diseases are more serious. Background Art

[0002] After corn is harvested, a lot of corn stalks will remain. Due to environmental protection requirements, large-scale burning of corn stalks is not possible, resulting in a large number of pests that cannot be effectively dealt with in a timely manner. Pests will enter the soil again, breed in the soil, and aggravate the pests in the next year.

[0003] In order to eliminate insect pests, a large amount of pesticides need to be used. The use of pesticides will affect the acidity and alkalinity of the soil and lead to excessive pesticide residues in the fruit.

[0004] In addition, weeds in the land cannot be effectively removed, resulting in a significant increase in the workload of weeding in the following year and the need to use a large amount of herbicides.

[0005] How to improve the effect of returning fields to the soil, reduce pests and diseases, and improve soil quality has become a technical problem that needs to be solved urgently. Summary of the invention

[0006] The technical problem to be solved by the present invention is generally to provide a corn soil return device and process for preventing and controlling pests. The main root system of corn plants is concentrated in the topsoil layer of 0 to 50 cm. Before the tassels emerge, the roots can reach the soil layer below 110 cm. Therefore, when treating the soil, it is necessary to treat the soil at a depth of at least 130 cm.

[0007] To solve the above problems, the technical solution adopted by the present invention is: In order to achieve mechanized soil treatment, a corn soil returning device for pest control includes a cleaning vehicle body; used for collecting soil at a set depth; A collecting assembly and a net covering assembly are respectively arranged at the front and rear ends of the cleaning vehicle body; the collecting assembly is used to collect the plowed soil, and the net covering assembly is used to lay a net pad in the soil; It is equipped with a deep tiller to turn the soil to a set depth; It is also equipped with a collection trolley for transporting the soil collected by the collection assembly; It is also equipped with a secondary processing component for secondary processing of the collected soil; It is also equipped with a backfill vehicle body to return the treated soil to the field; The cleaning vehicle body comprises a frame body; the frame body has running wheels; There are a plurality of mesh holes on the mesh pad, and the mesh holes have an aperture that prevents the smallest larvae in the local soil from passing through.

[0008] As a further improvement of the above technical solution: In order to facilitate the overlapping of the mesh pads, side tentacles are arranged on both sides of the mesh pads; In order to facilitate degradation and prevent the entry of insect eggs, the covering net component is a metal net; In order to facilitate the entry of insect eggs, the mesh hole diameter is less than 0.1mm.

[0009] In order to facilitate soil collection, the collection assembly includes a shovel plate hinged at the front end of the frame body; a pair of dial wheels are arranged at the front end of the lower end of the shovel plate; An upper collecting port is arranged at the rear upper end of the shovel plate; a side lateral output belt is arranged transversely at the upper collecting port; A side inclined output belt is provided at the output end of the side transverse output belt; The output end of the side-inclined output belt is located outside the frame body; The span of the traveling wheels is smaller than the center distance of the two thumbwheels.

[0010] In order to realize automatic net covering, the net covering assembly includes a rear frame connected to the rear end of the frame body; a winding spindle is arranged on the rear frame for winding the net cushion; The width of the mesh pad is greater than the span of the running wheels; Side baffles are provided at both ends of the coiling spindle; An output roller set is arranged at the rear side of the coiling main shaft for continuous output of the traction mesh cushion.

[0011] In order to facilitate the combination of the cover net and the bottom soil, a ground wheel frame is arranged at the rear lower part of the frame body; A leveling roller is provided below the frame body and in front of the ground wheel frame; The output roller group includes an upper shaft roller and a lower shaft roller arranged up and down; A guide roller is arranged between the coil main shaft and the output roller pair.

[0012] In order to facilitate the connection and overlap of the covering nets, forming discs are placed at both ends of the lower shaft roller to contact the side tentacles and push up the side tentacles; process ring grooves corresponding to the forming discs are placed at both ends of the upper shaft roller; A lower pressure roller is arranged on the ground wheel frame and is located at the rear and lower part of the output roller group; A supporting ground wheel is arranged on the ground wheel frame and is located at the rear side of the lower pressure roller; The span of the supporting ground wheel is smaller than the shaft length of the lower pressure roller; The width of the net covering assembly is greater than the span of the supporting ground wheels, and the span of the supporting ground wheels is greater than the span of the traveling wheels.

[0013] In order to achieve targeted treatment of soil, the secondary processing component at least includes a first processing unit, a second processing unit, a third processing unit and a horizontal output unit connected in process; The first processing unit, which inputs the screened collected soil, comprises a first conveyor belt; a vibrator is provided on the first conveyor belt; and side baffles are provided on both sides of the first conveyor belt; A soil-moving baffle and a rake claw are arranged on the first conveyor belt; The second processing unit includes a second conveyor belt; a heater is provided on the second conveyor belt to heat the collected soil; the output end of the second conveyor belt is a horizontal output end; an inclined output channel is provided at the horizontal output end; The third processing unit includes a vertical channel arranged at the lower outlet of the inclined output channel; a horizontal output unit is arranged below the vertical channel; The horizontal output unit is equipped with ingredient sampling process, water and fertilizer preparation process, and biological base material preparation process; The sub-packaging process is connected to the post-process of the horizontal output unit.

[0014] The inner side wall of the upper port in the vertical channel is respectively provided with a first direction guiding inclined plate group and a second direction guiding inclined plate group; The first direction guiding inclined plate group and the second direction guiding inclined plate group are arranged perpendicularly and at different heights; An upper pair of rolling rollers, a middle dispersing roller and a lower pair of rolling rollers are respectively arranged in the vertical channel and below the second direction guiding inclined plate group; The upper pair of rollers and the lower pair of rollers are respectively on the same horizontal plane and rotate in opposite directions, and the middle dispersion roller is located in the center of the vertical channel; The upper pair of rollers, the middle dispersion roller and / or the lower pair of rollers are respectively heating rollers; The backfill vehicle body comprises a backfill vehicle frame; a temporary storage box is arranged on the backfill vehicle frame; a guide funnel is arranged below the temporary storage box; a double-screw auger is arranged horizontally at the lower outlet of the guide funnel; A C-shaped push plate is arranged at the rear side of the lower outlet of the guide funnel.

[0015] In order to achieve effective soil treatment, a corn soil return process for controlling pests is provided, the process comprising the following steps: Step 1: Based on historical experience, obtain the local corn rooting depth, pest and disease types and habits, soil elements required, and soil pollution conditions, so as to determine the depth of soil returned to the field and the soil treatment plan; Step 2: loosen the soil with the help of a deep tiller; Step 3: first, collect the loosened soil; then, lay a mesh mat on the soil; Step 4: Collect and process the collected soil in a centralized manner. First, crush and screen the soil to remove stones and grass roots. Then, disperse the soil. Second, dry the dispersed soil several times. Third, sample the dried soil. After that, add corresponding elements to the sampled soil, adjust the pH and nutrients, and adjust the fertility and depth. Finally, add biological ecology to the soil. After that, quantitatively output the soil. Step five: Return the soil to the field.

[0016] As a further improvement of the above technical solution: Including the above-mentioned device.

[0017] While drying, light waves are used to assist in disinfecting germs and insect eggs; In step three, the following steps are performed: S3.1, collect and output the turned soil through the collecting assembly; lower the shovel plate, and collect the soil to the upper collecting port through the thumbwheel; S3.2, the collecting trolley receives the output soil and sends it to the truck for transfer to the secondary processing assembly; at the upper collecting port, the collected soil is output laterally through the side transverse output belt and the side inclined output belt, and is received by the collecting trolley; S3.2, the laid mesh pads are alternately overlapped by the mesh covering assembly, and the side tentacles are set up; first, the leveling rollers level and compact the cleaned soil; then, the mesh pads are output from the coiling spindle, and the mesh pads are continuously output through the output roller group to be pulled up and formed through the corresponding process ring grooves and the side tentacles of the forming disk; secondly, the mesh pads covered on the soil are squeezed by the down-pressing rollers and the supporting ground wheels, and the adjacent mesh pads are pressed down and connected by the supporting ground wheels; In step 4, the secondary treatment component performs secondary treatment on the soil; first, the pre-treated soil is heat-dried through the output belts of the first treatment unit and the second treatment unit, and light waves are used to assist in sterilizing and killing insect eggs during heat drying, and the soil is dispersed on the output belt by a vibrator; then, the soil after secondary heat drying is made to fall through the inclined output channel, and the soil is gathered toward the center through the first direction guide inclined plate group and the second direction guide inclined plate group, so that after multiple contact heat drying by the upper pair of rollers, the middle dispersion roller and the lower pair of rollers, the soil falls onto the horizontal output unit; The soil is horizontally transferred on the horizontal output unit, and the soil is sampled for composition, watered, fertilized and bio-based materials are added in sequence before being output and prepared for returning to the field; In step five, first, the truck pulls the secondary treated soil to the field to be returned; then, the soil is divided into temporary storage boxes; secondly, the truck body is backfilled for returning the soil to the field; during the returning operation, the soil falling from the guide funnel is impacted and dispersed by the reverse double-helix auger, and the soil to be returned is flattened by the C-type push plate while moving forward.

[0018] The invention has reasonable design, low cost, strong durability, safety and reliability, simple operation, time and labor saving, money saving, compact structure and convenient use. The invention is aimed at regular improvement of corn planting on barren or polluted land, fundamentally reducing the breeding sources of pests and diseases, and is also suitable for regular improvement of corn land (for example, ten years, etc.) to prevent the entry of insect eggs in the deep soil layer, and at the same time, prevent the problem that the insect eggs existing in the land returned to the field in the later stage enter the deep soil layer and cannot be disinfected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the mesh pad of the present invention.

[0021] Figure 2 It is a schematic diagram of the cleaning vehicle body structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the shovel plate structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the structure of the leveling roller of the present invention.

[0024] Figure 5 It is a schematic diagram of the use structure of the secondary processing component of the present invention.

[0025] Figure 6 It is a schematic diagram of the structure of the dispersion roller of the present invention.

[0026] Figure 7 It is a schematic diagram of the temporary storage box structure of the present invention.

[0027] Among them: 1. Net pad; 2. Cleaning car body; 3. Collection component; 4. Covering net component; 5. Collection trolley; 6. Secondary processing component; 7. Backfill car body; 8. Side tentacles; 9. Shovel board; 10. Paddle wheel; 11. Upper collection port; 12. Side lateral output belt; 13. Side inclined output belt; 14. Rear frame; 15. Coiling spindle; 16. Side baffle plate; 17. Output roller group; 18. Guide roller shaft; 19. Forming disk; 20. Process ring groove; 21. Smoothing roller; 22. Ground wheel frame ; 23. Lower pressure roller; 24. Supporting ground wheel; 25. First processing unit; 26. Second processing unit; 27. Third processing unit; 28. Horizontal output unit; 29. ​​Horizontal output end; 30. Inclined output channel; 31. Vertical channel; 32. First direction guiding inclined plate group; 33. Second direction guiding inclined plate group; 34. Upper pair of rollers; 35. Middle dispersing roller; 36. Lower pair of rollers; 37. Temporary storage box; 38. Guide funnel; 39. Double helix auger; 40. C-type push plate; DETAILED DESCRIPTION

[0028] like Figure 1-7 As shown, the corn soil returning device for controlling pests in this embodiment includes a cleaning vehicle body 2 for collecting soil at a set depth; A collecting assembly 3 and a net covering assembly 4 are respectively arranged at the front and rear ends of the cleaning vehicle body 2; the collecting assembly 3 is used to collect the plowed soil, and the net covering assembly 4 is used to lay the net pad 1 flat in the soil; It is equipped with a deep tiller to turn the soil at a set depth, making it easier to shovel the soil later; A collecting trolley 5 is also provided for transporting the soil collected by the collecting assembly 3; it travels back and forth between the truck on the plowing road and the cleaning vehicle body 2 in operation, thereby transporting and transferring the collected soil.

[0029] A secondary processing component 6 is also provided for secondary processing of the collected soil; the soil is processed centrally in the soil processing workshop.

[0030] It is also equipped with a backfill vehicle body 7 for returning the treated soil to the field; As a basic main body structure, the cleaning vehicle body 2 includes a frame body; the frame body has running wheels; The mesh pad is coiled and can be made of degradable plastic or metal mesh, so as to achieve environmental protection and facilitate the subsequent soil treatment without polluting the land. There are several mesh holes on the mesh pad 1, and the mesh hole diameter prevents the smallest larvae in the local soil from passing through.

[0031] Preferably, side tentacles 8 are provided on both sides of the mesh pad 1; The mesh component 4 is a metal mesh; The mesh hole diameter is less than 0.1mm, which makes it easy for larvae to pass through.

[0032] In order to collect the loose soil, the collection assembly 3 includes a shovel plate 9 hinged at the front end of the frame body; a pair of dial wheels 10 are arranged at the front end of the lower end of the shovel plate 9; In order to realize automatic soil collection, an upper collecting port 11 is provided at the rear upper end of the shovel plate 9; a side lateral output belt 12 is provided laterally at the upper collecting port 11; A side inclined output belt 13 is provided at the output end of the side transverse output belt 12; The output end of the side-inclined output belt 13 is located outside the vehicle frame; the bucket can be lowered by a hydraulic cylinder to facilitate the downward entry of the bucket.

[0033] In order to realize the automatic laying of the net pad, the net covering assembly 4 includes a rear frame 14 connected to the rear end of the frame body; a winding spindle 15 is arranged on the rear frame 14 for winding the net pad 1; As a clever arrangement, the span of the running wheels is smaller than the center distance between the two thumbwheels 10 .

[0034] The width of the mesh pad 1 is greater than the span of the running wheels; Side baffles 16 are provided at both ends of the coiling spindle 15 to realize side baffle mesh pads; An output roller set 17 is arranged at the rear side of the winding main shaft 15 for pulling the mesh cushion 1 to be continuously output.

[0035] A ground wheel frame 22 is provided at the rear lower part of the frame body; A leveling roller 21 is provided below the vehicle frame and in front of the ground wheel frame 22, so as to level the land after shoveling; The output roller set 17 includes an upper shaft roller and a lower shaft roller arranged up and down; A guide roller 18 is provided between the coiling main shaft 15 and the output roller pair 17 to achieve buffering of the mesh cushion.

[0036] Forming disks 19 are placed at both ends of the lower shaft roller to contact with and push up the side tentacles 8; process annular grooves 20 corresponding to the forming disks 19 are placed at both ends of the upper shaft roller, thereby realizing that the side tentacles 8 are facing upward.

[0037] A lower pressure roller 23 is provided on the ground wheel frame 22 and is located at the rear and lower part of the output roller set 17; a supporting ground wheel 24 is provided on the ground wheel frame 22 and is located at the rear side of the lower pressure roller 23; The width of the net covering assembly 4 is greater than the span of the supporting ground wheel 24 and the span of the supporting ground wheel 24 is greater than the span of the traveling wheel; The span of the supporting ground wheel 24 is smaller than the axial length of the pressing roller 23, so that the mesh pad to be overlapped subsequently can be buckled and connected by bending the side tentacles under the downward pressure of the roller or tire.

[0038] As the workshop processing part, it mainly describes the core process, and physical screening is not repeated. The secondary processing component 6 at least includes a first processing unit 25, a second processing unit 26, a third processing unit 27 and a horizontal output unit 28 connected by the process; The first processing unit 25, which inputs the screened collected soil, comprises a first conveyor belt; a vibrator is provided on the first conveyor belt; and side baffles are provided on both sides of the first conveyor belt; The first conveyor belt is provided with auxiliary parts such as soil-moving baffles and rake claws, so as to disperse the soil as evenly as possible; The second processing unit 26 includes a second conveyor belt; a heater is provided on the second conveyor belt to heat the collected soil; the output end of the second conveyor belt is a horizontal output end 29; an inclined output channel 30 is provided at the horizontal output end 29; The third processing unit 27 includes a vertical channel 31 disposed at the lower outlet of the inclined output channel 30; a horizontal output unit 28 is disposed below the vertical channel 31; The horizontal output unit 28 is equipped with ingredient sampling process, water and fertilizer mixing process, biological base material mixing process, which can increase water, fertilizer, earthworm eggs, beneficial bacteria, etc.; the present invention only describes the main process, and it can add other processes according to the outsourced enterprise, such as soil proportioning, fermentation and other processes.

[0039] The post-process of the horizontal output unit 28 is connected with a packaging process, so that the processed soil can be transported in a centralized manner by trucks.

[0040] The present invention heats grass roots, insect eggs and the like by drying so as to convert them into nutrients, thereby reducing insect pests and weeds and reducing dependence on herbicides and pesticides.

[0041] To further achieve the secondary treatment of the soil, a first direction guiding inclined plate group 32 and a second direction guiding inclined plate group 33 are respectively provided on the inner side wall of the upper port in the vertical channel 31; The first direction guiding inclined plate group 32 and the second direction guiding inclined plate group 33 are arranged perpendicularly and at different heights; An upper pair of rollers 34, a middle dispersion roller 35 and a lower pair of rollers 36 are respectively arranged in the vertical channel 31 and below the second direction guide inclined plate group 33, thereby realizing the impact and processing of the soil.

[0042] The upper pair of rollers 34 and the lower pair of rollers 36 are respectively on the same horizontal plane and rotate in opposite directions, and the middle dispersion roller 35 is located in the center of the vertical channel 31; The upper grinding roller 34, the middle dispersing roller 35 and / or the lower grinding roller 36 are heating rollers respectively; thus, heating is performed again to avoid omission.

[0043] The backfill vehicle body 7 includes a backfill vehicle frame; a temporary storage box 37 is arranged on the backfill vehicle frame; a guide funnel 38 is arranged below the temporary storage box 37; a double-helix auger 39 is horizontally arranged at the lower outlet of the guide funnel 38; its reverse setting makes the soil dispersed evenly by impacting the falling soil, and at the same time, the reverse double-helix auger is used to adjust the soil dispersion position as close to the middle as possible, so that the soil is partially uniform. Of course, the temporary storage box 37 is set to vibrate or is pushed by a push plate to make the soil fall, thereby controlling the total amount of soil falling.

[0044] A C-shaped push plate 40 is provided at the rear side of the lower outlet of the guide funnel 38 to disperse the soil that falls unevenly. Of course, a rake can be installed at the lower end of the C-shaped push plate 40 to loosen the soil.

[0045] The corn soil return to field process for pest control in this embodiment includes the following steps: Step 1: Based on historical experience, obtain the local corn rooting depth, pest and disease types and habits, soil elements required, and soil pollution conditions, so as to determine the depth of soil returned to the field and the soil treatment plan; Step 2: loosen the soil with the help of a deep tiller; Step 3: first, collect the loosened soil; then, lay the net mat 1 on the soil; Step 4: Collect and process the collected soil in a centralized manner. First, crush and screen the soil to remove stones and grass roots. Then, disperse the soil. Second, dry the dispersed soil several times. Third, sample the dried soil. After that, add corresponding elements to the sampled soil, adjust the pH and nutrients, and adjust the fertility and depth. Finally, add biological ecology to the soil. After that, quantitatively output the soil. Step five: Return the soil to the field.

[0046] The device comprises the above-mentioned device.

[0047] While drying, light waves are used to assist in disinfecting germs and insect eggs; In step three, the following steps are performed: S3.1, collect and output the turned soil through the collecting assembly 3; lower the shovel plate 9, and collect the soil to the upper collecting port 11 through the thumbwheel 10; S3.2, the collecting trolley 5 receives the output soil and sends it to the truck for transfer to the secondary processing assembly 6; at the upper collecting port 11, the collected soil is output laterally through the side transverse output belt 12 and the side inclined output belt 13, and is received by the collecting trolley 5; S3.2, the laid mesh pads 1 are alternately overlapped by the mesh covering assembly 4, and the side tentacles 8 are set up; first, the leveling roller 21 levels and compacts the cleaned soil; then, the mesh pad 1 is output from the winding main shaft 15, and the mesh pad 1 is continuously output by the output roller group 17, and the side tentacles 8 are formed by the corresponding process ring groove 20 and the forming disk 19; secondly, the mesh pad 1 covering the soil is squeezed by the lower pressing roller 23 and the supporting ground wheel 24, and the adjacent mesh pads 1 are pressed down and connected by the supporting ground wheel 24; In step 4, the secondary treatment component 6 performs secondary treatment on the soil; first, the pre-treated soil is heat-dried through the output belts of the first treatment unit 25 and the second treatment unit 26, and light waves are used to assist in sterilizing and killing insect eggs during heat drying, and the soil is dispersed on the output belt by a vibrator; then, the soil after secondary heat drying is made to fall through the inclined output channel 30, and the soil is gathered toward the center through the first direction guide inclined plate group 32 and the second direction guide inclined plate group 33, so that after multiple contact heat drying by the upper pair of rollers 34, the middle dispersion roller 35 and the lower pair of rollers 36, it falls onto the horizontal output unit 28; The soil is horizontally transferred on the horizontal output unit 28, and the soil is sequentially sampled for composition, watered, fertilized and bio-based, and then outputted to prepare for returning to the field; In step five, first, the truck pulls the soil after secondary treatment to the field to be returned; then, the soil is divided into temporary storage boxes 37; secondly, the truck body 7 is backfilled to carry out the field return operation; during the field return operation, the soil falling from the guide funnel 38 is impacted and dispersed by the reverse double-helix auger 39, and the soil to be returned is flattened by the C-type push plate 40 during the forward movement.

[0048] The present invention is fully described for a clearer disclosure, and the prior art is not listed one by one.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents; it is obvious for those skilled in the art to combine multiple technical solutions of the present invention. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. The technical contents not described in detail in the present invention are all known technologies.

Claims

1. A corn soil returning device for pest control, characterized in that: It includes a cleaning vehicle body (2); used to collect soil at a set depth; A collecting component (3) and a net covering component (4) are respectively arranged at the front and rear ends of the cleaning vehicle body (2); the collecting component (3) is used to collect the plowed soil, and the net covering component (4) is used to lay the net pad (1) flat in the soil; It is equipped with a deep tiller to turn the soil to a set depth; A collecting trolley (5) is also provided for transporting the soil collected by the collecting assembly (3); A secondary processing component (6) is also provided for performing secondary processing on the collected soil; A backfill vehicle body (7) is also provided for returning the treated soil to the field; The cleaning vehicle body (2) comprises a vehicle frame; the vehicle frame has running wheels; A plurality of mesh holes are respectively provided on the mesh pad (1), and the mesh holes have an aperture diameter that prevents the smallest larvae in the local soil from passing through.

2. The corn soil returning device for controlling pests according to claim 1, characterized in that: Side tentacles (8) are arranged on both sides of the mesh pad (1); The covering mesh component (4) is a metal mesh; The mesh aperture is less than 0.1mm.

3. The corn soil returning device for controlling pests according to claim 1, characterized in that: The collecting assembly (3) comprises a shovel plate (9) hinged at the front end of the frame body; a pair of dial wheels (10) are arranged at the front end of the lower end of the shovel plate (9); An upper collecting port (11) is provided at the rear upper end of the shovel plate (9); a side lateral output belt (12) is provided laterally at the upper collecting port (11); A side inclined output belt (13) is provided at the output end of the side transverse output belt (12); The output end of the side inclined output belt (13) is located outside the frame body; The span of the traveling wheel is smaller than the center distance of the two thumbwheels (10).

4. The corn soil returning device for controlling pests according to any one of claims 1 to 3, characterized in that: The net covering assembly (4) comprises a rear frame (14) connected to the rear end of the frame body; a winding spindle (15) is provided on the rear frame (14) for winding the net cushion (1); The width of the mesh pad (1) is greater than the span of the running wheels; Side baffles (16) are respectively provided at both ends of the coiling spindle (15); An output roller set (17) is arranged on the rear side of the coiling main shaft (15) and is used for pulling the mesh cushion member (1) for continuous output.

5. The corn soil returning device for controlling pests according to claim 4, characterized in that: A ground wheel frame (22) is arranged at the rear lower part of the frame body; A leveling roller (21) is provided below the vehicle frame and is located in front of the ground wheel frame (22); The output roller set (17) comprises an upper shaft roller and a lower shaft roller which are arranged up and down; A guide roller shaft (18) is provided between the coil main shaft (15) and the output roller pair group (17).

6. The corn soil returning device for controlling pests according to claim 5, characterized in that: Forming discs (19) are placed at both ends of the lower shaft roller, and are used to contact the side tentacles (8) and push up the side tentacles (8); process ring grooves (20) corresponding to the forming discs (19) are placed at both ends of the upper shaft roller; A lower pressure roller (23) is provided on the ground wheel frame (22) and is located at the rear and lower part of the output roller group (17); A supporting ground wheel (24) is arranged on the ground wheel frame (22) and is located at the rear side of the lower pressure roller (23); The span of the supporting ground wheel (24) is smaller than the shaft length of the lower pressure roller (23); The width of the net covering assembly (4) is greater than the span of the supporting ground wheel (24), and the span of the supporting ground wheel (24) is greater than the span of the traveling wheel.

7. The corn soil returning device for controlling pests according to claim 6, characterized in that: The secondary processing component (6) comprises at least a first processing unit (25), a second processing unit (26), a third processing unit (27) and a horizontal output unit (28) connected in process steps; The first processing unit (25) inputs the screened collected soil, comprising a first conveyor belt; a vibrator is provided on the first conveyor belt; and side baffles are provided on both sides of the first conveyor belt; A soil-moving baffle and a rake claw are arranged on the first conveyor belt; The second processing unit (26) comprises a second conveyor belt; a heater is provided on the second conveyor belt to heat the collected soil; the output end of the second conveyor belt is a horizontal output end (29); an inclined output channel (30) is provided at the horizontal output end (29); The third processing unit (27) comprises a vertical channel (31) arranged at the lower outlet of the inclined output channel (30); a horizontal output unit (28) is arranged below the vertical channel (31); The horizontal output unit (28) is equipped with a component sampling process, a water and fertilizer preparation process, and a biological base material preparation process; The sub-packaging process is connected to the post-process of the horizontal output unit (28).

8. The corn soil returning device for controlling pests according to claim 7, characterized in that: A first direction guiding inclined plate group (32) and a second direction guiding inclined plate group (33) are respectively provided on the inner side wall of the upper port in the vertical channel (31); The first direction guiding inclined plate group (32) and the second direction guiding inclined plate group (33) are arranged in a perpendicular direction and at different heights; An upper pair of grinding rollers (34), a middle dispersion roller (35) and a lower pair of grinding rollers (36) are respectively arranged in the vertical channel (31) and below the second direction guide inclined plate group (33); The pair of rollers of the upper pair of rollers (34) and the pair of rollers of the lower pair of rollers (36) are respectively on the same horizontal plane and rotate in opposite directions, and the middle dispersion roller (35) is located at the center of the vertical channel (31); The upper pair of grinding rollers (34), the middle dispersion roller (35) and / or the lower pair of grinding rollers (36) are respectively heating rollers; The backfill vehicle body (7) comprises a backfill vehicle frame; a temporary storage box (37) is arranged on the backfill vehicle frame; a guide funnel (38) is arranged below the temporary storage box (37); and a double-screw auger (39) is arranged transversely at the lower outlet of the guide funnel (38); A C-shaped push plate (40) is arranged at the rear side of the lower outlet of the guide funnel (38).

9. A corn soil return process for pest control, characterized in that: The process includes the following steps; Step 1: Based on historical experience, obtain the local corn rooting depth, pest and disease types and habits, soil elements required, and soil pollution conditions, so as to determine the depth of soil returned to the field and the soil treatment plan; Step 2: loosen the soil with the help of a deep tiller; Step 3: first, collect the loosened soil; then, lay a mesh mat (1) on the soil; Step 4: Collect and process the collected soil in a centralized manner. First, crush and screen the soil to remove stones and grass roots. Then, disperse the soil. Second, dry the dispersed soil several times. Third, sample the dried soil. After that, add corresponding elements to the sampled soil, adjust the pH and nutrients, and adjust the fertility and depth. Finally, add biological ecology to the soil. After that, quantitatively output the soil. Step five: Return the soil to the field.

10. The process of returning corn soil to the field for pest control according to claim 9, characterized in that: comprising the device according to any one of claims 1 to 8, In step 4, light waves are used to assist in disinfecting germs and insect eggs while drying; In step three, the following steps are performed: S3.1, collecting and outputting the turned soil through the collecting assembly (3); lowering the shovel plate (9), and collecting the soil into the upper collecting port (11) through the thumbwheel (10); S3.2, the collecting trolley (5) receives the output soil and delivers it to a truck for transfer to the secondary processing assembly (6); at the upper collecting port (11), the collected soil is output laterally through the side transverse output belt (12) and the side inclined output belt (13), and is received by the collecting trolley (5); S3.2, the laid mesh pads (1) are alternately overlapped by the mesh covering assembly (4), and the side tentacles (8) are arranged to be tilted upward; first, the leveling roller (21) levels and compacts the cleaned soil; then, the mesh pads (1) are output from the coiling spindle (15), and the mesh pads (1) are continuously output by pulling the mesh pads (1) through the output roller group (17), and the side tentacles (8) are pushed up and formed through the corresponding process ring grooves (20) and the forming disc (19); secondly, the mesh pads (1) covering the soil are squeezed by the lower pressing roller (23) and the supporting ground wheel (24), and the adjacent mesh pads (1) are pressed down and connected by the supporting ground wheel (24); In step 4, the secondary treatment component (6) performs secondary treatment on the soil; first, the pre-treated soil is heat-dried through the output belts of the first treatment unit (25) and the second treatment unit (26); while heat-dried, light waves are used to assist in sterilizing and killing insect eggs, and the soil is dispersed on the output belt by a vibrator; Then, the soil after the second heat drying is caused to fall down through the inclined output channel (30), and the soil is gathered toward the center through the first direction guide inclined plate group (32) and the second direction guide inclined plate group (33), so that after multiple contact heat drying by the upper pair of rollers (34), the middle dispersion roller (35) and the lower pair of rollers (36), the soil falls onto the horizontal output unit (28); The soil is horizontally transported on the horizontal output unit (28), and the soil is sequentially sampled for composition, watered, fertilized and bio-based, and then outputted to prepare for returning to the field; In step five, first, the truck pulls the soil after secondary treatment to the field to be returned to the field; then, the soil is divided into temporary storage boxes (37); secondly, the truck body (7) is backfilled to carry out the field return operation; during the field return operation, the soil falling from the guide funnel (38) is impacted and dispersed by the reverse double-screw auger (39), and the soil to be returned to the field is flattened by the C-shaped push plate (40) while moving forward.

Images