Corn soil pest control and soil returning device and process

Abstract

The present application relates to the corn soil pest control device and process, it includes the cleaning car body, be used for the soil collection of setting depth, be provided with the collection assembly and the net assembly respectively at the front and rear end of the cleaning car body, the collection assembly is used for the soil collection of ploughing, the net assembly is used for the net mat piece in the soil is laid, be equipped with the deep ploughing machine, be used for the soil of setting depth is moved, still be equipped with the collection trolley, be used for the soil of collection assembly collection is transported, still be equipped with the secondary processing assembly, be used for the secondary processing of the soil of collection, still be equipped with the backfill car body, be used for the soil of processing is returned to the field, the cleaning car body includes the frame body, the frame body has the running wheel, the present application is reasonable in design, compact structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to a corn soil still field device and process for preventing and treating pests, which is particularly suitable for large-scale corn planting in the northeast region and areas with more serious pests. BACKGROUND

[0002] After corn harvesting, a large amount of straw is left, and due to environmental protection requirements, large-area burning of straw cannot be carried out, resulting in that a large number of pests cannot be treated in time and effectively. Pests will enter the soil again, and pests will breed in the soil, which will aggravate the pest infestation next year.

[0003] In order to eliminate pests, a large amount of pesticides need to be used, and the use of pesticides will affect the acidity and alkalinity of the land, resulting in excessive pesticide residues on fruits.

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

[0005] How to improve the still field effect, reduce pests and diseases, and improve soil quality has become a technical problem that needs to be solved urgently. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a corn soil still field device and process for preventing and treating pests. The main root system of corn plants is concentrated in the 0 to 50 cm surface soil layer. Before the tassel is extracted, the root system can reach the soil layer below 110 cm, so when the soil is treated, the soil with a depth of at least 130 cm needs to be treated.

[0007] To solve the above problems, the technical solution adopted by the present application is:

[0008] In order to realize the mechanized treatment of the soil, a corn soil still field device for preventing and treating pests comprises a cleaning vehicle body; a soil collecting device for collecting soil at a set depth;

[0009] A collecting assembly and a net laying assembly are arranged at the front and rear ends of the cleaning vehicle body respectively; the collecting assembly is used to collect the plowed soil, and the net laying assembly is used to lay the net mat in the soil;

[0010] A deep plowing machine is matched, which is used to turn over the soil at a set depth;

[0011] A collecting trolley is also matched, which is used to transport the soil collected by the collecting assembly;

[0012] A secondary treatment assembly is also matched, which is used to perform secondary treatment on the collected soil;

[0013] A backfill vehicle body is also matched, which is used to return the treated soil to the field;

[0014] The cleaning vehicle body comprises a vehicle frame body;

[0015] The net mat has a plurality of mesh holes, and the mesh hole diameter prevents the passage of the smallest larvae in the local soil.

[0016] As a further improvement of the above technical solution:

[0017] In order to facilitate the mutual lapping of the net mat, side tentacles are arranged on both sides of the net mat.

[0018] In order to facilitate degradation and prevent the entry of insect eggs, the net covering assembly is a metal mesh.

[0019] In order to facilitate the entry of insect eggs, the mesh hole diameter is less than 0.1mm.

[0020] In order to facilitate soil collection, the collection assembly comprises a shovel plate hinged at the front end of the vehicle frame body; a pair of poking wheels are arranged at the front end of the lower end of the shovel plate.

[0021] The upper end of the shovel plate is provided with an upper collection port; a side transverse output belt is arranged transversely in the upper collection port.

[0022] A side inclined output belt is arranged at the output end of the side transverse output belt.

[0023] The output end of the side inclined output belt is located outside the vehicle frame body.

[0024] The span of the walking wheels is less than the center distance of the two poking wheels.

[0025] In order to realize automatic net covering, the net covering assembly comprises a rear frame connected to the rear end of the vehicle frame body; a coiling main shaft is arranged on the rear frame for coiling the net mat.

[0026] The width of the net mat is greater than the span of the walking wheels.

[0027] Side retaining discs are arranged at both ends of the coiling main shaft.

[0028] An output roller pair is arranged at the rear side of the coiling main shaft for continuously outputting the net mat.

[0029] In order to facilitate the combination of the net covering and the soil at the bottom, a land wheel machine frame is arranged below the rear end of the vehicle frame body.

[0030] A smoothing roller is arranged in front of the land wheel machine frame below the vehicle frame body.

[0031] The output roller pair comprises an upper shaft roller and a lower shaft roller arranged vertically.

[0032] A guide roller shaft is arranged between the coiling main shaft and the output roller pair.

[0033] In order to facilitate the mutual connection of the covering net, a forming disc is arranged at the two ends of the lower shaft roller, which is used to contact and lift the side whiskers; a process ring groove corresponding to the forming disc is arranged at the two ends of the upper shaft roller;

[0034] A lower pressing roller is arranged on the ground wheel frame below the output pair of rollers;

[0035] A supporting ground wheel is arranged on the ground wheel frame at the rear side of the lower pressing roller;

[0036] The span of the supporting ground wheel is smaller than the shaft length of the lower pressing roller;

[0037] The width of the covering net assembly is greater than the span of the supporting ground wheel, and the span of the supporting ground wheel is greater than the span of the walking wheel.

[0038] In order to realize the targeted treatment of the soil, the secondary treatment assembly at least includes a first treatment unit, a second treatment unit, a third treatment unit and a horizontal output unit connected in sequence;

[0039] The first treatment unit inputs the collected soil after screening, and includes a first conveying belt; a vibrator is matched on the first conveying belt; side baffles are arranged on both sides of the first conveying belt;

[0040] A soil pushing baffle and a rake claw are arranged on the first conveying belt;

[0041] The second treatment unit includes a second conveying belt; a heater is matched on the second conveying belt to heat the collected soil; the output end of the second conveying belt is a horizontal output end; an inclined output channel is arranged at the horizontal output end;

[0042] The third treatment 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;

[0043] A component sampling process, a water and fertilizer mixing process and a biological base material mixing process are matched on the horizontal output unit;

[0044] A sub-packaging process is connected in sequence after the horizontal output unit.

[0045] First direction guide inclined plate groups and second direction guide inclined plate groups are respectively arranged on the inner side walls of the upper end ports in the vertical channel;

[0046] The first direction guide inclined plate groups and the second direction guide inclined plate groups are arranged vertically and at different heights;

[0047] An upper pair of rollers, a middle dispersion roller and a lower pair of rollers are respectively arranged in the vertical channel and below the second direction guide inclined plate groups;

[0048] The rollers of the upper pair of rollers and the rollers of the lower pair of rollers respectively rotate on the same horizontal plane and in opposite directions, and the middle dispersion roller is located in the center of the vertical channel.

[0049] The upper pair of rollers, the middle pair of rollers and / or the lower pair of rollers are heating rollers respectively;

[0050] The backfill vehicle body comprises a backfill vehicle frame; a temporary storage box body is arranged on the backfill vehicle frame; a guide hopper is arranged below the temporary storage box body; a double-spiral auger is arranged transversely at the outlet of the guide hopper;

[0051] A C-shaped pushing plate is arranged at the rear side of the outlet of the guide hopper.

[0052] In order to effectively treat the soil, a corn soil returning process for preventing pests comprises the following steps:

[0053] Step one, according to historical experience, the local corn root depth, pest type and habit, soil required elements, soil pollution are obtained, so as to determine the depth of the soil returning and the soil treatment scheme;

[0054] Step two, the soil is loosened by means of a deep plough;

[0055] Step three, first, the loosened soil is collected; then, the soil is laid with a net mat piece;

[0056] Step four, the collected soil is centrally treated; first, the soil is crushed and screened to clean stones and roots; then, the soil is dispersed; secondly, the dispersed soil is dried multiple times; thirdly, the dried soil is sampled; after that, the sampled soil is added with corresponding elements, and the pH value and nutrient elements are adjusted to adjust the fertility and depth; after that, the soil is added with biological ecology; finally, the soil is quantitatively output;

[0057] Step five, the soil is returned to the field.

[0058] As a further improvement of the above technical solution:

[0059] The device comprises the above.

[0060] The light wave is used to assist in killing bacteria and insect eggs while drying;

[0061] In step three, the following steps are performed.

[0062] S3.1, the turned soil is collected and output by the collecting assembly; the shovel plate is lowered, and the soil is collected to the upper collecting port by the poking wheel;

[0063] S3.2, the collected soil is output to the collecting trolley and sent to the truck for transfer to the secondary treatment assembly; the collected soil is output laterally by the lateral output belt and the lateral inclined output belt at the upper collecting port, and is received by the collecting trolley;

[0064] S3.2, the laid net mat piece is alternately overlapped by the net covering assembly, and the side tendrils are upwardly arranged; first, the flat roller is used to flatten and compact the cleaned soil; then, the net mat piece is output from the coiled main shaft, the net mat piece is continuously output by the output roller set, and the side tendrils are upwardly formed by the corresponding process ring groove and the forming disc; second, the net mat piece on the soil is extruded by the lower pressing roller and the supporting ground wheel, and the adjacent net mat pieces are secondarily pressed and connected by the supporting ground wheel;

[0065] In step four, the soil is secondarily treated by the secondary treatment assembly; first, the pre-processed soil is heated by the output belts of the first treatment unit and the second treatment unit, and the soil is dispersed on the output belt by the vibration device while being heated; then, the soil after the second heating is caused to fall by the inclined output channel, and the soil is caused to gather to the center by the first direction guide inclined plate set and the second direction guide inclined plate set, so that the soil is heated by the upper roller, the middle dispersion roller and the lower roller for multiple times, and then falls on the horizontal output unit;

[0066] The soil is horizontally transmitted on the horizontal output unit, and the soil is output after being sequentially sampled, water and fertilizer are distributed, and biological base material is distributed, so as to be prepared for returning to the field;

[0067] In step five, first, the truck draws the soil after the secondary treatment to the field to be returned to the field; then, the soil is packed into the temporary storage box; second, the backfill vehicle body is used for the returning operation; in the returning operation, the soil falling from the guide hopper is impacted and dispersed by the reverse double helix stirring dragon, and the soil to be returned is flattened by the C-shaped pushing plate during the forward movement.

[0068] The present application has the advantages of reasonable design, low cost, durability, safety, reliability, simple operation, time and labor saving, cost saving, compact structure and convenient use. The present application is suitable for periodic improvement of corn planting on infertile or contaminated land, which fundamentally reduces the breeding source of diseases and pests, and is also suitable for periodic improvement of corn land (for example, ten years or the like), which prevents the eggs of pests in the deep soil layer from entering, and prevents the eggs of pests existing in the later returning land from entering the deep soil layer and being unable to be killed. BRIEF DESCRIPTION OF DRAWINGS

[0069] Figure 1 is a net mat piece structure schematic diagram of the present application.

[0070] Figure 2 is a cleaning vehicle body structure schematic diagram of the present application.

[0071] Figure 3 is a shovel plate structure schematic diagram of the present application.

[0072] Figure 4 is a flat roller structure schematic diagram of the present application.

[0073] Figure 5 is a schematic diagram of the secondary treatment assembly structure of the present application.

[0074] Figure 6 is a schematic diagram of the middle dispersion roller structure of the present application.

[0075] Figure 7 is a schematic diagram of the temporary storage box structure of the present application.

[0076] Wherein: 1, mesh mat; 2, cleaning car body; 3, collection assembly; 4, mesh covering assembly; 5, collection trolley; 6, secondary treatment assembly; 7, backfill car body; 8, side whisker; 9, shovel plate; 10, push wheel; 11, upper collection port; 12, side horizontal output belt; 13, side inclined output belt; 14, rear frame; 15, coiling main shaft; 16, side baffle disc; 17, output pair of roller assemblies; 18, guide roller shaft; 19, forming disc; 20, process ring groove; 21, flattening roller; 22, ground wheel frame; 23, lower pressure roller; 24, supporting ground wheel; 25, first treatment unit; 26, second treatment unit; 27, third treatment unit; 28, horizontal output unit; 29, horizontal output end; 30, inclined output channel; 31, vertical channel; 32, first direction guide inclined plate group; 33, second direction guide inclined plate group; 34, upper pair of rolling rollers; 35, middle dispersion roller; 36, lower pair of rolling rollers; 37, temporary storage box; 38, guide hopper; 39, double helix stirring dragon; 40, C-shaped push plate; DETAILED DESCRIPTION

[0077] As Figure 1-7 shown, the corn soil returning device for preventing and treating pests of the present embodiment comprises a cleaning car body 2; a collection assembly 3 for collecting soil at a set depth;

[0078] A mesh covering assembly 4 is arranged at the front and rear ends of the cleaning car body 2 respectively; the collection assembly 3 is used for collecting the ploughed soil, and the mesh covering assembly 4 is used for laying the mesh mat 1 on the soil;

[0079] It is matched with a deep ploughing machine for turning over the soil at a set depth, which facilitates the later earth removal;

[0080] It is also matched with a collection trolley 5 for transporting the soil collected by the collection assembly 3; the collection trolley 5 is back and forth between the truck on the ploughing road and the cleaning car body 2 in operation, so as to transport and transfer the collected soil.

[0081] It is also matched with a secondary treatment assembly 6 for secondary treatment of the collected soil; the secondary treatment assembly 6 is concentrated in the soil treatment workshop.

[0082] It is also matched with a backfill car body 7 for returning the treated soil to the field;

[0083] As a basic main body mechanism, the cleaning vehicle body 2 comprises a vehicle frame body; the vehicle frame body has walking vehicle wheels;

[0084] The net mat piece is coiled and arranged, can be degradable plastic or metal net, so as to realize environmental protection, facilitate the later soil treatment, and not pollute the land. There are a plurality of mesh holes on the net mat piece 1, and the mesh hole diameter prevents the passage of the smallest larvae in the local soil.

[0085] As preferred, the net mat piece 1 is provided with side tentacles 8 on both sides;

[0086] The net covering assembly 4 is a metal net;

[0087] The mesh hole diameter is less than 0.1mm, so as to facilitate the passage of larvae.

[0088] In order to realize the collection of loose soil, the collection assembly 3 comprises a shovel plate 9 hinged at the front end of the vehicle frame body; a pair of push wheels 10 are arranged at the front end of the lower end of the shovel plate 9;

[0089] In order to realize automatic collection of soil, the upper end of the shovel plate 9 is provided with an upper collection port 11; a side transverse output belt 12 is arranged transversely on the upper collection port 11;

[0090] A side inclined output belt 13 is arranged at the output end of the side transverse output belt 12;

[0091] The output end of the side inclined output belt 13 is located outside the vehicle frame body; the bucket can be lowered by the hydraulic cylinder to facilitate the downward entry of the bucket.

[0092] In order to realize the automatic laying of the net mat piece, the net covering assembly 4 comprises a rear vehicle frame 14 connected at the rear end of the vehicle frame body; a coiling main shaft 15 is arranged on the rear vehicle frame 14 for coiling the net mat piece 1;

[0093] As a clever arrangement, the span of the walking vehicle wheel is less than the center distance of the two push wheels 10.

[0094] The width of the net mat piece 1 is greater than the span of the walking vehicle wheel;

[0095] Side retaining discs 16 are arranged at both ends of the coiling main shaft 15 to realize side retaining of the net mat piece;

[0096] An output pair of roller groups 17 are arranged at the rear side of the coiling main shaft 15 for continuously outputting the net mat piece 1.

[0097] A ground wheel frame 22 is arranged below the rear end of the vehicle frame body;

[0098] A leveling roller 21 is arranged below the vehicle frame body in front of the ground wheel frame 22, so as to realize leveling of the land after the land is plowed;

[0099] The output pair of roller groups 17 comprises an upper shaft roller and a lower shaft roller arranged in an upper and lower manner;

[0100] A guide roller shaft 18 is arranged between the disc winding spindle 15 and the output pair of rollers 17, so as to buffer the net mat.

[0101] A forming disc 19 is arranged at both ends of the lower shaft roller, used for contacting and lifting the side tendrils 8; a process ring groove 20 corresponding to the forming disc 19 is arranged at both ends of the upper shaft roller; so as to realize upward of the side tendrils 8.

[0102] A pressing roller 23 is arranged on the ground wheel frame 22, located below and behind the output pair of rollers 17; a supporting ground wheel 24 is arranged on the ground wheel frame 22, located at the rear side of the pressing roller 23;

[0103] 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 wheels;

[0104] The span of the supporting ground wheel 24 is less than the shaft length of the pressing roller 23, so as to lap the net mat, and realize the bending of the side tendrils under the pressing of the roller or tire, and the buckling connection of the net mat.

[0105] As the workshop processing part, the main core process is mainly described, and the physical screening and the like are not described, and the secondary processing assembly 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 in sequence;

[0106] The first processing unit 25 inputs the collected soil after screening, and includes a first conveying belt; a vibrator is matched on the first conveying belt; side baffles are arranged on both sides of the first conveying belt;

[0107] Auxiliary components such as soil pushing baffles and rake claws are arranged on the first conveying belt, so as to make the soil as dispersed and uniform as possible;

[0108] The second processing unit 26 includes a second conveying belt; a heater is matched on the second conveying belt, used for heating the collected soil; the output end of the second conveying belt is a horizontal output end 29; an inclined output channel 30 is arranged at the horizontal output end 29;

[0109] The third processing unit 27 includes a vertical channel 31 arranged at the lower outlet of the inclined output channel 30; the horizontal output unit 28 is arranged below the vertical channel 31;

[0110] The horizontal output unit 28 is matched with a component sampling process, a water and fertilizer mixing process and a biological base material mixing process, which can add water and fertilizer, earthworm eggs, beneficial bacteria and the like; the present application only describes the main process, and other processes such as soil mixing and fermentation can be added by the outsourcing enterprise.

[0111] The sub-packaging process is connected to the horizontal output unit 28, so that the processed soil can be transported in a centralized manner by truck.

[0112] The present invention heats grass roots, insect eggs, etc. by drying so that they become nutrients, while reducing insect pests and weeds, thereby reducing dependence on herbicides and pesticides.

[0113] To further achieve the secondary processing of the soil, a first direction guide inclined plate group 32 and a second direction guide inclined plate group 33 are respectively provided on the inner side wall of the upper port of the vertical channel 31;

[0114] The first direction guide inclined plate group 32 and the second direction guide inclined plate group 33 are arranged perpendicularly and at different heights;

[0115] 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 , thereby achieving impact and processing of the soil.

[0116] The upper pair of rollers 34 and the lower pair of rollers 36 are on the same horizontal plane and rotate in opposite directions. The middle dispersion roller 35 is located in the center of the vertical channel 31.

[0117] The upper grinding roller 34, the middle dispersion roller 35 and / or the lower grinding roller 36 are heating rollers respectively; thereby heating them again to avoid omission.

[0118] The backfill vehicle body 7 includes a backfill frame; a temporary storage box 37 is provided on the backfill frame; a guide funnel 38 is provided below the temporary storage box 37; a double-helix auger 39 is laterally provided at the lower outlet of the guide funnel 38; its reverse setting makes the soil dispersed evenly by impacting the falling soil. 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.

[0119] A C-shaped push plate 40 is provided at the rear side of the lower outlet of the guide funnel 38 to disperse the unevenly falling soil. Of course, a rake can be installed at the lower end of the C-shaped push plate 40 to loosen the soil.

[0120] The corn soil return to field process for pest control in this embodiment includes the following steps:

[0121] Step 1: Based on historical experience, obtain the local corn rooting depth, pest and disease types and habits, soil elements required, and soil pollution status, so as to determine the depth of soil return and soil treatment plan;

[0122] Step 2: loosen the soil with the help of a deep tiller;

[0123] Step three, first, collect the soil to be loosened; then, lay the mesh mat 1 on the soil;

[0124] Step four, concentrate the collected soil; first, break up and screen the soil to remove stones and roots; then, disperse the soil; second, dry the dispersed soil multiple times; third, test the dried soil; fourth, add corresponding elements to the tested soil and adjust the pH and nutrient elements to adjust the fertility and depth; fifth, add biological ecology to the soil; and finally, output the soil quantitatively;

[0125] Step five, return the soil to the field.

[0126] The device comprises the device described above.

[0127] Simultaneously with drying, use light waves to assist in killing bacteria and insect eggs;

[0128] In step three, the following steps are performed:

[0129] S3.1, collect and output the turned soil through the collection assembly 3; lower the shovel plate 9 and collect the soil into the upper collection port 11 through the collection wheel 10;

[0130] S3.2, the collection cart 5 receives the output soil and sends it to the truck for transfer to the secondary processing assembly 6; at the upper collection port 11, the collected soil is output laterally through the lateral output belt 12 and the lateral inclined output belt 13, and is received by the collection cart 5;

[0131] S3.2, alternately overlap the laid mesh mat 1 through the net covering assembly 4, and set the side tendrils 8 upward; first, flatten and compact the cleaned soil with the flattening roller 21; then, output the mesh mat 1 from the coiled main shaft 15, continuously output the mesh mat 1 through the output roller pair 17, and form the side tendrils 8 upward through the corresponding process ring groove 20 and the forming disc 19; second, extrude the mesh mat 1 on the soil through the lower pressing roller 23 and the supporting ground wheel 24, and secondarily press and connect the adjacent mesh mat 1 through the supporting ground wheel 24;

[0132] In step four, the secondary processing assembly 6 processes the soil twice; first, heat the pre-processed soil through the output belts of the first processing unit 25 and the second processing unit 26, simultaneously with the heat drying, assist in killing bacteria and insect eggs through light waves, and disperse the soil through the vibrator; then, make the twice-heated soil fall through the inclined output channel 30, and make the soil gather towards the center through the first direction guide inclined plate group 32 and the second direction guide inclined plate group 33, so that the soil falls onto the horizontal output unit 28 after multiple contact heatings through the upper roller pair 34, the middle dispersion roller 35, and the lower roller pair 36;

[0133] The soil level is transported on the horizontal output unit 28, and the soil is output after being sampled, water and fertilizer are distributed, and biological base material is distributed in sequence, and is prepared for returning to the field;

[0134] In step five, first, the truck pulls the secondary treated soil to the field to be returned to the field; then, the soil is packed into the temporary storage box 37; secondly, the backfill vehicle 7 performs the returning to the field operation; in the returning to the field operation, the soil falling from the guide hopper 38 is impacted and dispersed by the reverse double helix stirring dragon 39, and in the forward movement, the soil returned to the field is flattened by the C-shaped pushing plate 40.

[0135] The present application is fully described in order to more clearly disclose, and the prior art is not enumerated one by one.

[0136] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; as it is obvious for those skilled in the art to combine the technical solutions of the present application. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application. The technical contents not described in detail in the present application are all known technologies.

Claims

1. A corn soil return device for pest control, characterized by: It includes a cleaning vehicle body (2); used for collecting soil at a set depth; A collecting assembly (3) and a covering net assembly (4) are respectively provided 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 covering net 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 to a set depth; A collection trolley (5) is also provided for transporting the soil collected by the collection assembly (3); It is also equipped with a secondary processing component (6) for performing secondary processing on the collected soil; It is also equipped with a backfill vehicle (7) for returning the treated soil to the field; The cleaning vehicle body (2) includes a vehicle frame; the vehicle frame has running wheels; The mesh pad (1) is provided with a plurality of mesh holes, each of which has an aperture that prevents the smallest larvae in the local soil from passing through; side tentacles (8) are provided on both sides of the mesh pad (1); The covering mesh component (4) is a metal mesh; The net covering assembly (4) includes 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 pad (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 provided on the rear side of the coiling main shaft (15) for continuously outputting the pulling mesh pad (1); A ground wheel frame (22) is provided at the rear lower portion of the vehicle frame; A leveling roller (21) is provided below the vehicle frame and is located in front of the ground wheel frame (22); The output roller group (17) comprises an upper shaft roller and a lower shaft roller arranged above and below; A guide roller (18) is provided between the coiling main shaft (15) and the output roller set (17); Forming discs (19) are placed at both ends of the lower shaft roller for contacting the side tentacles (8) and pushing 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 below and behind the output roller group (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 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.

2. The corn soil returning device for pest control according to claim 1, characterized in that: The mesh aperture is less than 0.1mm.

3. The corn soil returning device for pest control according to claim 1, characterized in that: The collecting assembly (3) includes a shovel plate (9) hinged at the front end of the vehicle frame; a pair of thumbwheels (10) are provided 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 transverse output belt (12) is provided transversely to 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 span of the traveling wheel is smaller than the center distance of the two thumbwheels (10).

4. The corn soil returning device for pest control according to claim 3, 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; 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 provided on the first conveyor belt; 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) provided at the lower outlet of the inclined output channel (30); a horizontal output unit (28) is provided below the vertical channel (31); The horizontal output unit (28) is equipped with a component sampling process, a water and fertilizer mixing process, and a biological base material mixing process; The sub-packaging process is connected to the post-process of the horizontal output unit (28).

5. The corn soil returning device for pest control according to claim 4, characterized in that: A first direction guide inclined plate group (32) and a second direction guide inclined plate group (33) are respectively provided on the inner side wall of the upper port in the vertical channel (31); The first direction guide inclined plate group (32) and the second direction guide inclined plate group (33) are arranged perpendicularly and at different heights; An upper grinding roller (34), a middle dispersion roller (35) and a lower grinding roller (36) are respectively arranged in the vertical channel (31) and below the second direction guide inclined plate group (33); 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 dispersion roller (35) and / or the lower grinding roller (36) are heating rollers respectively; The backfill vehicle body (7) includes a backfill vehicle frame; a temporary storage box (37) is provided on the backfill vehicle frame; a guide funnel (38) is provided below the temporary storage box (37); and a double-screw auger (39) is transversely provided at the lower outlet of the guide funnel (38); A C-shaped push plate (40) is provided at the rear side of the lower outlet of the guide funnel (38).

6. A corn soil return process for pest control, characterized by: The process of returning land to the field includes the device described in claim 5; 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 status, so as to determine the depth of soil return and 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: Collected soil is centrally processed. First, the soil is crushed and screened to remove stones and grass roots. Then, the soil is dispersed. Second, the dispersed soil is dried multiple times. Third, the dried soil is sampled. After that, the sampled soil is added with corresponding elements to adjust the pH and nutrients, and adjust the fertility and depth. Finally, the soil is added with biological ecology. Finally, the soil is quantitatively exported. Step five: Return the soil to the field.

7. The corn soil return process for pest control according to claim 6, characterized in that: In step 4, light waves are used to assist in disinfecting bacteria 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 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 covering mesh 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 coiling spindle (15), and the mesh pad (1) is continuously output by the output roller group (17), and the side tentacles (8) are pushed up and formed by the corresponding process ring groove (20) and the forming disc (19); secondly, the mesh pad (1) covered on 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 heated and dried through the output belts of the first treatment unit (25) and the second treatment unit (26); while being heated and 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 secondary heat drying is caused 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 grinding rollers (34), the middle dispersion roller (35) and the lower pair of grinding rollers (36), the soil falls onto the horizontal output unit (28); The soil is horizontally transferred on the horizontal output unit (28), and the soil is sequentially inspected for composition, watered, fertilized, and bio-based, and then output for return 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 perform 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 returned soil is flattened by the C-shaped push plate (40) during the forward movement.

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