Ploughing and mixing in-situ remediation device for organic contaminated soil

Abstract

The invention discloses a plowing and mixing in-situ remediation device for organic contaminated soil. The plowing and mixing in-situ remediation device comprises a carrier, a furrowing mechanism and a plowing mechanism. The furrowing mechanism and the ploughing mechanism are both mounted on the carrier; the ploughing mechanism is located on one side of the furrowing mechanism. Crawler wheels are arranged on two sides of the carrier; a connecting frame is arranged at one end, close to the furrowing mechanism, of the carrier; the connecting frame can be connected with a traction device; the number of the ploughing mechanisms is two. In the process of moving and rotating the plowing mechanism to mix materials, the two plowing ploughs which are symmetrical front and back and take the pesticide box as the center can carry out plowing and mixing on soil twice in the opposite direction; therefore, the ploughing efficiency is improved; a spraying pipe I, a spraying pipe II and a spraying pipe III are matched to spray pesticide to soil at different positions, and meanwhile, the soil and the pesticide liquid are mixed through ploughing of a ploughing plough, so that the soil and the pesticide liquid are uniformly mixed, and the remediation efficiency of the soil is improved; the adjusting mechanism can adjust the position of the ploughing mechanism, and the situation that soil which cannot be ploughed is omitted in the ploughing process in the middle position of the two sets of ploughing mechanisms is prevented.

Description

Technical Field

[0001] This invention belongs to the field of organic polluted soil remediation technology, and specifically relates to an in-situ remediation device for organic polluted soil by tillage and mixing. Background Technology

[0002] Organically polluted soil remediation mainly involves tilling the soil and adding appropriate agents for remediation. When tilling the soil, a traction device is usually used to pull the plow to till the soil. However, the existing tilling plows have a small tilling range and can only till the soil in the same direction. Moreover, the spraying mechanism is separate from the tilling components, which reduces the uniformity and efficiency of soil remediation.

[0003] A search revealed a soil amendment device and method for ecological remediation of organically polluted soil, with publication number CN116548105A. The device includes a box, a deep tillage component, a separation component, and an amendment delivery component. The bottom of the box is equipped with wheels. The deep tillage component includes a gearbox mounted on the box, a rotating shaft and a connecting shaft engaged with the gearbox, deep tillage blades mounted on the rotating shaft, and a deep tillage motor that provides power to the connecting shaft. However, this method has the following drawbacks: the deep tillage component has a small tillage range, and can only till the soil in one direction, causing the amendment delivery component to separate from the deep tillage component, which reduces the uniformity and efficiency of soil remediation.

[0004] A search revealed an existing technology, CN121103836A, which discloses an organic polluted soil remediation device. This device includes a support frame with a rotating shaft at its bottom. Several rotating circular blades are evenly spaced on the shaft, each blade having a cutting edge at equal angles along its outer edge. Soil forming components are located on both sides of the rotating circular blades. However, this process has the following drawbacks: while the chemical solution penetrates horizontally into the soil within the trench, the penetration is affected by soil clumps and stones, preventing the solution from mixing evenly with the soil and thus affecting the remediation effect. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an in-situ remediation device for organically contaminated soil by tilling and mixing. During the movement and rotation of the tilling mechanism and the mixing process, two symmetrical tilling plows centered on the medicine tank can till and mix the soil twice in opposite directions, thereby improving tilling efficiency. Spray pipes I, II, and III work together to spray medicine on the soil at different locations while simultaneously tilling and mixing it through the tilling plows, thus ensuring that the soil and medicine are evenly mixed, improving the soil remediation efficiency. The adjusting mechanism can adjust the position of the tilling mechanism to prevent soil from being missed during the tilling process in the middle position between the two sets of tilling mechanisms.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An in-situ remediation device for organically contaminated soil by tillage and mixing includes a carrier, a furrow mechanism, and a tillage mechanism; both the furrow mechanism and the tillage mechanism are mounted on the carrier; tracked wheels are provided on both sides of the carrier, and a connecting frame is provided at the end of the carrier near the furrow mechanism; the connecting frame can be connected to a traction device.

[0008] The tillage mechanism has two sets; the tillage mechanism includes a mounting plate, a medicine box, a hydraulic motor II, a rotating shaft, and a tillage plow; the mounting plate is mounted on the carrier and has a mounting groove; the medicine box is rotatably connected to the mounting groove of the mounting plate, the medicine box has a medicine inlet pipe on its side wall, and a boss on the top of the medicine box, which is connected to the medicine box by bolts and is suspended in the mounting groove of the mounting plate; one end of the rotating shaft is fixed to the top of the medicine box, and the other end passes through the mounting plate and the carrier, the rotating shaft is rotatably connected to the mounting plate, and a bevel gear II is provided on the top of the rotating shaft; the inside of the rotating shaft is hollow and communicates with the medicine box to facilitate the passage of wires; several sets of tillage plows are provided and are evenly installed at the bottom of the medicine box; the hydraulic motor II is connected to the carrier, and a bevel gear I is provided at the output end of the hydraulic motor II; bevel gear I and bevel gear II mesh, and protective boxes are provided on the outside of bevel gear I and bevel gear II.

[0009] The vehicle has a movable groove at the bottom and a support block at the top of the mounting plate, with the support block movably connected to the movable groove.

[0010] The bottom of the medicine box is equipped with a rotating mechanism, which includes a hydraulic motor III, gear I, a connecting shaft, gear II, a protective cover, and a cylinder. The cylinder is fixed at the center inside the medicine box, and the hydraulic motor III is fixed inside the cylinder, with the output end of the hydraulic motor III passing through the bottom of the medicine box. Gear I is connected to the output end of the hydraulic motor III. The connecting shaft has several rotatable connections to the bottom of the medicine box, and gear II is provided on the connecting shaft, with gear II meshing with gear I. The protective cover is fixed to the bottom of the medicine box, located outside gear II and gear I, and the connecting shaft passes through the protective cover and is rotatably connected to it. A tillage plow is located below the protective cover and is connected to the end of the connecting shaft.

[0011] The tillage plow includes a support frame, a plow, and side plates; the support frame is connected to a connecting shaft, and the plow is installed at the bottom of the support frame; the side plates are arc-shaped, and there is a pair of side plates, which are installed on the support frames on both sides of the plow, and the side plates are recessed towards the side away from the plow.

[0012] The plow is a double-edged triangular plow with a plow tip at the front end to facilitate breaking up the soil; the sides of the plow have arc-shaped blades, and the plow wall is recessed towards the support frame.

[0013] The plow is equipped with a spraying mechanism, which is connected to the medicine tank. The spraying mechanism includes a connecting pipe, spray pipe I, spray pipe II, a medicine outlet pipe, and spray pipe III. The medicine outlet pipe is fixed inside the medicine tank, and the connecting pipe passes through the connecting shaft and communicates with the inside of the medicine tank. The connecting pipe and the medicine outlet pipe are connected by a rotary joint. One end of spray pipe I and spray pipe II are both connected to the connecting pipe. Spray pipe I passes through the support frame, and the nozzle on spray pipe I is located below the support frame. Spray pipe I is located behind the plow. Spray pipe II passes through the support frame and is connected to the side plate. Spray pipe I has a nozzle on its side wall. The nozzle on spray pipe II is located between the plow and the side plate. Spray pipe III is connected to spray pipe II and is installed on the plow, with the nozzle of spray pipe III facing the plow surface.

[0014] The carrier is equipped with an adjustment mechanism and a square through-slot. The adjustment mechanism passes through the square through-slot and connects to the tillage mechanism. The adjustment mechanism includes a hydraulic cylinder, a moving frame, and a connecting column. The moving frame is located on the carrier. One end of the connecting column is fixed to the bottom of the moving frame, and the other end passes through the square through-slot on the carrier and connects to the mounting plate. The hydraulic cylinder is fixed on the carrier, and the output shaft of the hydraulic cylinder is connected to the moving frame. There is a pair of hydraulic cylinders, and the pair of hydraulic cylinders are controlled by a synchronization valve. The synchronization valve model is FJL-J25H, which was purchased from the market and custom-made. The rotating shaft rotates through the moving frame and is rotatably connected to the moving frame through a bearing. The hydraulic motor II and the protective box are connected to the moving frame.

[0015] The advantages of this invention compared to existing technologies are as follows:

[0016] 1) In the tillage mechanism, hydraulic motor II provides power to drive bevel gear I to rotate, bevel gear I drives bevel gear II to rotate, bevel gear II drives the rotating shaft to rotate, and the rotating shaft drives the medicine tank and the tillage plow to rotate. This causes the tillage plow to till and mix the soil. At the same time, the traction device drives the tillage plow forward through the carrier. During the movement and rotation of the tillage plow, the two symmetrically positioned tillage plows centered on the medicine tank can till and mix the soil twice in opposite directions, thereby improving tillage efficiency. When the plow tills the soil, the liquid medicine inside the medicine tank enters the spray pipe I and spray pipe II through the connecting pipe, and then sprays out from the nozzles on spray pipe I and spray pipe II. The pesticide is sprayed into the soil; the pesticide sprayed from nozzle III falls onto the surface in front of the plow. When the plow tills the soil, the pesticide on the plow surface directly mixes with the soil. At the same time, the pesticide sprayed from nozzle I enters the soil after it has been tilled by the plow, while the pesticide sprayed from nozzle II falls between the plow and the side plate. The three nozzles work together to spray the soil in different locations, and the tilling and mixing by the plow ensures that the soil and pesticide are evenly mixed, thereby improving the soil remediation efficiency. In addition, the rotating shaft drives the pesticide tank to rotate, which can shake the pesticide in the tank and prevent the pesticide from settling.

[0017] 2) In the rotating mechanism, hydraulic motor III provides power to drive gear I to rotate, gear I drives gear II to rotate, gear II drives the connecting shaft to rotate, and the connecting shaft drives the tiller to rotate; thus, the tiller tills and mixes the soil; when the tiller rotates around the medicine tank, the tiller inserts into the soil so that the soil is located on the tiller wall, and at the same time, the tiller rotates and throws the soil out, thus turning the lower soil to the surface, realizing three-dimensional mixing of the agent and the soil, avoiding stratification. At the same time, during the tiller's rotation, the arc-shaped plow blade cuts and breaks up the hardened soil layer, thus enabling the soil and the liquid medicine to be mixed evenly.

[0018] 3) The hydraulic cylinder in the adjustment mechanism drives the moving frame, which in turn drives the tilling mechanism to move along the through groove on the carrier through the connecting column, thereby adjusting the position of the tilling mechanism and preventing soil that cannot be tilled from being missed in the middle position of the two sets of tilling mechanisms during the tilling process. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the structure of an in-situ remediation device for tillage and mixing of organic polluted soil according to the present invention.

[0020] Appendix Figure 2 This is a schematic diagram of the bottom structure of an in-situ remediation device for tillage and mixing of organic polluted soil according to the present invention.

[0021] Appendix Figure 3 This is a schematic diagram of the adjustment mechanism in the in-situ remediation device for tillage and mixing of organic contaminated soil according to the present invention.

[0022] Appendix Figure 4 This is a schematic diagram of the tillage mechanism structure of an in-situ remediation device for organically contaminated soil using tillage mixing according to the present invention. Figure 1 ;

[0023] Appendix Figure 5 This is a schematic diagram of the mounting plate in the in-situ remediation device for tillage and mixing of organic contaminated soil according to the present invention.

[0024] Appendix Figure 6 This is a schematic diagram of the tillage mechanism structure of an in-situ remediation device for organically contaminated soil using tillage mixing according to the present invention. Figure 2 ;

[0025] Appendix Figure 7 This is a schematic diagram of the tillage plow in the in-situ remediation device for tillage and mixing of organic polluted soil according to the present invention.

[0026] Appendix Figure 8 This is a schematic diagram of the spraying mechanism in an in-situ remediation device for tillage and mixing of organic contaminated soil according to the present invention.

[0027] In the diagram: 1. Vehicle; 101. Track wheel; 102. Connecting frame; 103. Square through slot; 104. Moving slot; 3. Furrow mechanism; 4. Adjustment mechanism; 401. Hydraulic cylinder; 403. Moving frame; 404. Connecting column; 5. Tillage mechanism; 501. Mounting plate; 5011. Support block; 5012. Mounting slot; 502. Medicine tank; 5021. Medicine inlet pipe; 5022. Boss; 503. Hydraulic motor II; 5031. Bevel gear I; 504. Rotating shaft ; 5041, Bevel gear II; 505, Tiller; 5051, Support frame; 5052, Tiller; 5053, Side plate; 506, Rotating mechanism; 5061, Hydraulic motor III; 5062, Gear I; 5063, Connecting shaft; 5064, Gear II; 5065, Protective cover; 5066, Cylinder; 507, Spraying mechanism; 5071, Connecting pipe; 5072, Spray nozzle I; 5073, Spray nozzle II; 5074, Discharge pipe; 5075, Spray nozzle III. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-8 The technical solution of the present invention will be further described in detail below.

[0029] Example 1:

[0030] An in-situ remediation device for organically contaminated soil by tillage and mixing, the specific steps of which are as follows:

[0031] 1) Preliminary preparation: Test the organic-contaminated soil to be remediated, and carry out remediation based on the organic content of the soil.

[0032] 2) Furrowing: First, the furrowing mechanism is used to open furrows in the organically contaminated soil, which facilitates subsequent tilling and mixing of the soil.

[0033] 3) Tillage: The soil is tilled using a tillage machine; the top 15cm layer of organically contaminated soil is tilled.

[0034] 4) Spraying: During the tillage process, the remediation agent is sprayed into the soil through the spraying mechanism; the remediation agent is potassium permanganate oxidant, which can oxidize and decompose organic pollutants. The remediation agent is temporarily stored inside the tank.

[0035] 5) Mixing: The soil after spraying is further tilled by the tilling mechanism. The rotation and revolution of the tilling mechanism further till and mix the soil in different directions, while ensuring that the soil and the remediation agent are evenly mixed; two cross-tilling and mixing processes are carried out; each time is 36 hours apart.

[0036] 6) Leveling: Leveling the soil after tilling and mixing;

[0037] 7) Testing: Let the soil stand for one month, then take soil samples for testing;

[0038] An in-situ remediation device for organically contaminated soil by tilling and mixing includes a carrier 1, a furrowing mechanism 3, and a tilling mechanism 5. The furrowing mechanism 3 and the tilling mechanism 5 are both mounted on the carrier 1. The tilling mechanism 5 is located on one side of the furrowing mechanism 3. Tracked wheels 101 are provided on both sides of the carrier 1, and a connecting frame 102 is provided at the end of the carrier 1 near the furrowing mechanism 3. The connecting frame 102 can be connected to a traction device. The traction device drives the carrier 1 through the connecting frame 102. The traction device provides power, electricity, and oil supply to the remediation device. The hydraulic oil station set in the traction device provides power to the cylinders and hydraulic motors of the remediation device through hydraulic solenoid valves. First, the organically contaminated soil is furrowed by the furrowing mechanism 3, and then the tilling mechanism 5 is used to spray and till the soil, so that the organically contaminated soil and the pesticide solution are evenly mixed.

[0039] The tillage mechanism 5 has two sets; the tillage mechanism 5 includes a mounting plate 501, a medicine box 502, a hydraulic motor II 503, a rotating shaft 504, and a tillage plow 505; the mounting plate 501 is mounted on the carrier 1, and the mounting plate 501 has a mounting groove 5012; the medicine box 502 is rotatably connected to the mounting groove 5012 of the mounting plate 501, the side wall of the medicine box 502 is provided with a medicine inlet pipe 5021, and the top of the medicine box 502 is provided with a boss 5022, which is connected to the medicine box 502 by bolts. 5022 is rotatably connected to the mounting slot 5012 of the mounting plate 501; one end of the rotating shaft 504 is fixed to the top of the medicine tank 502, and the other end passes through the mounting plate 501 and the carrier 1. The rotating shaft 504 is rotatably connected to the mounting plate 501. The top of the rotating shaft 504 is provided with a bevel gear II 5041. The interior of the rotating shaft 504 is hollow and communicates with the medicine tank 502 to facilitate the passage of wires; several sets of tillage plows 505 are provided and are evenly installed at the bottom of the medicine tank 502; the hydraulic motor II 503 is connected to the carrier. 1. The output end of the hydraulic motor II 503 is equipped with a bevel gear I 5031; bevel gear I 5031 and bevel gear II 5041 mesh, and protective boxes are provided on the outside of bevel gear I 5031 and bevel gear II 5041; the hydraulic motor II 503 provides power to drive bevel gear I 5031 to rotate, bevel gear I 5031 drives bevel gear II 5041 to rotate, bevel gear II 5041 drives rotating shaft 504 to rotate, rotating shaft 504 drives medicine tank 502 and tillage plow 505 to rotate; thereby causing tillage plow 505 to rotate. The soil is tilled and mixed with materials. At the same time, the traction device drives the tiller 505 forward through the carrier 1. During the movement and rotation of the tilling and mixing process, the two symmetrical tillers 505 centered on the medicine tank 502 can till and mix the soil twice in opposite directions. This can improve tilling efficiency and make the soil and medicine solution evenly mixed. Moreover, the rotating shaft 504 drives the medicine tank 502 to rotate, which can shake the medicine solution in the medicine tank 502, thereby preventing the medicine solution in the medicine tank 502 from settling.

[0040] The carrier 1 has a movable groove 104 at the bottom and a support block 5011 at the top of the mounting plate 501. The support block 5011 is movably connected in the movable groove 104. The support block 5011 can support the mounting plate 501, thereby improving the stability of the mounting plate 501.

[0041] The medicine box 502 has a rotating mechanism 506 at its bottom. The rotating mechanism 506 includes a hydraulic motor III 5061, a gear I 5062, a connecting shaft 5063, a gear II 5064, a protective cover 5065, and a cylinder 5066. The cylinder 5066 is fixed at the center inside the medicine box 502. The hydraulic motor III 5061 is fixed inside the cylinder 5066, and the output end of the hydraulic motor III 5061 passes through the bottom of the medicine box 502. The gear I 5062 is connected to the output end of the hydraulic motor III 5061. The connecting shaft 5063 has several gears rotatably connected to the bottom of the medicine box 502. The connecting shaft 5063 has a gear II 5064. The gears II 5064 and I 5065 are connected to each other. 62 meshing; the protective cover 5065 is fixed to the bottom of the medicine box 502, and the protective cover 5065 is located outside the gear II 5064 and the gear I 5062. The connecting shaft 5063 passes through the protective cover 5065 and is rotatably connected to the protective cover 5065; the tillage plow 505 is located below the protective cover 5065 and is connected to the end of the connecting shaft 5063; the hydraulic motor III 5061 provides power to drive the gear I 5062 to rotate, the gear I 5062 drives the gear II 5064 to rotate, the gear II 5064 drives the connecting shaft 5063 to rotate, and the connecting shaft 5063 drives the tillage plow 505 to rotate; thereby enabling the tillage plow 505 to till and mix the soil.

[0042] The tillage plow 505 includes a support frame 5051, a plow 5052, and side plates 5053. The support frame 5051 is connected to a connecting shaft 5063, and the plow 5052 is installed at the bottom of the support frame 5051. The side plates 5053 are arc-shaped, and there is a pair of side plates 5053. The side plates 5053 are installed on the support frames 5051 on both sides of the plow 5052, and the side plates 5053 are recessed to the side away from the plow 5052. The plow 5052 tills the soil, causing the soil to turn over to both sides along the plow 5052. Then, the side plates 5053 gather the soil on both sides of the plow 5052, thereby rolling the soil and further improving the soil mixing uniformity.

[0043] The plow 5052 is a double-edged triangular plow with a plow tip at the front end to facilitate breaking up the soil. The sides of the plow 5052 have arc-shaped plow blades, and the plow wall is recessed towards the support frame. When the plow 5052 rotates around the medicine box, it inserts into the soil, causing the soil to be located on the plow wall. At the same time, the rotation of the plow 5052 causes the soil to be thrown out, turning the lower soil to the surface, achieving three-dimensional mixing of the medicine and the soil, avoiding stratification. During the rotation of the plow, the arc-shaped plow blades cut and break up the hardened soil layer, thus enabling the soil and medicine to be mixed evenly.

[0044] The tillage plow 505 is equipped with a spraying mechanism 507, which is connected to the medicine tank 502. The spraying mechanism 507 includes a connecting pipe 5071, a spray pipe I 5072, a spray pipe II 5073, a medicine outlet pipe 5074, and a spray pipe III 5075. The medicine outlet pipe 5074 is fixed inside the medicine tank 502. The connecting pipe 5071 passes through a connecting shaft 5063 and communicates with the inside of the medicine tank 502. The connecting pipe 5071 and the medicine outlet pipe 5074 are connected by a rotary joint. The spray pipe I 5072 and... One end of nozzle II 5073 is connected to connecting pipe 5071; nozzle I 5072 passes through support frame 5051, and the nozzle on nozzle I 5072 is located below support frame 5051, and nozzle I 5072 is located behind plow 5052; nozzle II 5073 passes through support frame 5051 and is connected to side plate 5053, and nozzle is provided on the side wall of nozzle II 5073; the nozzle of nozzle II 5073 is located between plow 5052 and side plate 5053; nozzle III 5075 is connected to nozzle II 5073. The system is connected at 073, and nozzle III 5075 is installed on the plow 5052, with the nozzle of nozzle III 5075 facing the plow surface. During plowing, the pesticide solution inside the pesticide tank 502 enters nozzle I 5072 and nozzle II 5073 through connecting pipe 5071, and is then sprayed into the soil through the nozzles on nozzle I 5072 and nozzle II 5073. The pesticide solution sprayed from nozzle III 5075 falls onto the front surface of the plow 5052. As the plow 5052 tills the soil... During plowing, the pesticide solution on the surface of the plow 5052 comes into contact with and mixes with the soil; at the same time, the pesticide solution sprayed from nozzle I 5072 is sprayed into the soil after being turned over by the plow 5052, while the pesticide solution sprayed from nozzle II 5073 falls between the plow 5052 and the side plate 5053; nozzles I 5072, nozzle II 5073 and nozzle III 5075 work together to spray the soil in different locations, while the soil is turned over and mixed by the plow 505, so that the soil and pesticide solution are evenly mixed, thereby improving the soil remediation efficiency.

[0045] The carrier 1 is equipped with an adjustment mechanism 4 and a square through-slot 103. The adjustment mechanism 4 passes through the square through-slot 103 and connects to the tillage mechanism 5. The adjustment mechanism 4 includes a hydraulic cylinder 401, a moving frame 403, and a connecting column 404. The moving frame 403 is located on the carrier 1. One end of the connecting column 404 is fixed to the bottom of the moving frame 403, and the other end passes through the square through-slot 103 on the carrier 1 and connects to the mounting plate 501. The hydraulic cylinder 401 is fixed to the carrier 1, and the output shaft of the hydraulic cylinder 401 is connected to the moving frame 403. There is a pair of hydraulic cylinders 401. The system is controlled by a synchronization valve, model FJL-J25H, which was purchased from the market and custom-made. The rotating shaft 504 passes through the moving frame 403 and is rotatably connected to the moving frame 403 via a bearing. The hydraulic motor II 503 and the protective box are connected to the moving frame 403. The oil cylinder 401 drives the moving frame 403 to move, and the moving frame 403 drives the tillage mechanism 5 to move along the square through groove 103 on the carrier 1 via the connecting column 404, thereby adjusting the position of the tillage mechanism 5 and preventing soil from being missed during the tillage process in the middle position of the two sets of tillage mechanisms 5.

[0046] Example 2: The difference from Example 1 is that:

[0047] 3) Tillage: The soil is tilled using a tillage machine; the top 15cm layer of organically contaminated soil is tilled.

[0048] 4) Spraying: During tillage, the remediation agent is sprayed into the soil through a spraying mechanism; it is temporarily stored inside the tank; the spraying rate is 8L / m². 2 ;

[0049] 5) Mixing: The soil after spraying is further tilled by the tilling mechanism. The rotation and revolution of the tilling mechanism further till and mix the soil in different directions, which can make the soil and the remediation agent evenly mixed. Four cross-tilling and mixing are carried out, with an interval of 42 hours between each time.

[0050] Example 3: The difference from Example 1 is:

[0051] 3) Tillage: The soil is tilled using a tillage machine; the top 15cm layer of organically contaminated soil is tilled.

[0052] 4) Spraying: During the tillage process, the remediation agent is sprayed into the soil through the spraying mechanism; the remediation agent is potassium permanganate oxidant, which can oxidize and decompose organic pollutants. The remediation agent is temporarily stored inside the tank.

[0053] 5) Mixing: The soil after spraying is further tilled by the tilling mechanism. The rotation and revolution of the tilling mechanism further till and mix the soil in different directions, which can make the soil and the remediation agent evenly mixed; 5 cross-tillage and mixing are carried out; each time is 48 hours apart.

[0054] Comparative examples: Soil was remediated using the methods in Examples 1-3, and then soil was remediated using the method in patent application publication number CN116548105A;

[0055] The organic matter content in the soil of the above examples was tested according to GB 36600-2018. The organic matter content in the soil of Examples 1-3 and the comparative example was qualified. Moreover, the soil remediated by the method of Example 3 was more evenly mixed with the remediation agent.

[0056] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0057] In the description of this invention, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting; movable connection methods include, but are not limited to, sliding connection, rotating connection and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution.

[0058] In summary, power systems including but not limited to hydraulic motors and their respective transmission systems are equipped with protective covers according to their actual installation locations to prevent wear or damage to the power and transmission systems caused by the external environment, thereby ensuring the normal operation of the power and transmission systems.

[0059] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A tillage and mixing in-situ remediation device for organically contaminated soil, comprising a carrier, a furrowing mechanism, and a tillage mechanism; characterized in that... Both the furrowing mechanism and the tilling mechanism are mounted on the vehicle; the tilling mechanism is located on one side of the furrowing mechanism; the vehicle has tracked wheels on both sides, and a connecting frame is located at the end of the vehicle near the furrowing mechanism; the connecting frame can be connected to the traction device. The tillage mechanism has two sets; the tillage mechanism includes a mounting plate, a medicine tank, a hydraulic motor II, a rotating shaft, and a tillage plow; the mounting plate is mounted on the carrier and has a mounting groove; the medicine tank is rotatably connected to the mounting groove of the mounting plate, and has a medicine inlet pipe on its side wall. The top of the medicine tank has a boss, which is connected to the medicine tank by bolts and is rotatably connected to the mounting groove of the mounting plate; one end of the rotating shaft is fixed to the top of the medicine tank, and the other end passes through the mounting plate and the carrier, and the rotating shaft is rotatably connected to the mounting plate. The top of the rotating shaft has a bevel gear II, and the inside of the rotating shaft is hollow and communicates with the medicine tank; there are several sets of tillage plows, which are evenly installed at the bottom of the medicine tank; the hydraulic motor II is connected to the carrier, and the output end of the hydraulic motor II has a bevel gear I; bevel gear I and bevel gear II mesh, and protective boxes are provided on the outside of bevel gear I and bevel gear II.

2. The in-situ remediation device for organically contaminated soil by tillage and mixing according to claim 1, characterized in that... The vehicle has a movable slot at the bottom and a support block at the top of the mounting plate. The support block is movably connected to the movable slot.

3. The in-situ remediation device for organically contaminated soil by tillage and mixing according to claim 1, characterized in that... The bottom of the medicine box is equipped with a rotating mechanism, which includes a hydraulic motor III, gear I, a connecting shaft, gear II, a protective cover, and a cylinder. The cylinder is fixed at the center inside the medicine box, and the hydraulic motor III is fixed inside the cylinder, with the output end of the hydraulic motor III passing through the bottom of the medicine box. Gear I is connected to the output end of the hydraulic motor III. The connecting shaft has several gears and is rotatably connected to the bottom of the medicine box. Gear II is mounted on the connecting shaft, and gears II and I mesh. The protective cover is fixed to the bottom of the medicine box and is located outside gears II and I. The connecting shaft passes through the protective cover and is rotatably connected to the protective cover. The tiller is located below the protective cover and is connected to the end of the connecting shaft.

4. The in-situ remediation device for organically contaminated soil by tillage and mixing according to claim 1, characterized in that... The tillage plow includes a support frame, a plow, and side plates; the support frame is connected to a connecting shaft, and the plow is installed at the bottom of the support frame; the side plates are arc-shaped, and there are a pair of side plates, which are installed on the support frames on both sides of the plow, with the side plates recessed towards the side away from the plow.

5. The in-situ remediation device for organically contaminated soil by tillage and mixing according to claim 4, characterized in that... The plow is a double-edged triangular plow with a plow tip at the front to break up the soil; the sides of the plow have curved blades, and the plow wall is recessed towards the support frame.

6. The in-situ remediation device for tillage and mixing of organically contaminated soil according to claim 1, characterized in that... The plow is equipped with a spraying mechanism that is connected to the pesticide tank. The spraying mechanism includes a connecting pipe, spray pipe I, spray pipe II, a pesticide outlet pipe, and spray pipe III. The pesticide outlet pipe is fixed inside the pesticide tank, and the connecting pipe passes through the connecting shaft and connects to the inside of the pesticide tank. The connecting pipe and the pesticide outlet pipe are connected by a rotary joint. One end of spray pipe I and spray pipe II are both connected to the connecting pipe. Spray pipe I passes through the support frame, and the nozzle on spray pipe I is located below the support frame. Spray pipe I is located behind the plow. Spray pipe II passes through the support frame and is connected to the side plate. Spray pipe I has a nozzle on its side wall. The nozzle on spray pipe II is located between the plow and the side plate. Spray pipe III is connected to spray pipe II and is installed on the plow, with the nozzle of spray pipe III facing the plow surface.

7. The in-situ remediation device for organically contaminated soil by tillage and mixing according to claim 1, characterized in that... The carrier is equipped with an adjustment mechanism and a square through-slot. The adjustment mechanism passes through the square through-slot and connects to the tillage mechanism. The adjustment mechanism includes a hydraulic cylinder, a moving frame, and a connecting column. The moving frame is located on the carrier. One end of the connecting column is fixed to the bottom of the moving frame, and the other end passes through the square through-slot on the carrier and connects to the mounting plate. The hydraulic cylinder is fixed on the carrier, and the output shaft of the hydraulic cylinder is connected to the moving frame. There is a pair of hydraulic cylinders, and the pair of hydraulic cylinders are controlled by a synchronization valve. The rotating shaft rotates through the moving frame and is rotatably connected to the moving frame through a bearing. The hydraulic motor II and the protective box are connected to the moving frame.

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