Novel in-situ chain plate type shallow soil remediation device and method

Abstract

The invention discloses a novel in-situ chain plate type shallow soil remediation device and method.The novel in-situ chain plate type shallow soil remediation device comprises a tractor body, a chain plate type uniform mixing mechanism and an agent discharging mechanism, the chain plate type uniform mixing mechanism is installed on the rear portion of the tractor body, and the agent discharging mechanism is installed on the front portion of the tractor body; wherein the uniform mixing cutters of the chain plate type uniform mixing mechanism adopt an arrangement and alternate rotation direction design, 216 uniform mixing cutters are divided into 24 groups, each group comprises 9 cutters, and two adjacent groups of blades adopt opposite rotation directions. By means of the design, when the device is driven by the chain to rotate in cycles, soil can be efficiently crushed, and a soil remediation agent scattered in advance is fully and evenly mixed with the soil within the specified depth of a shallow layer. Through the unique blade arrangement and alternate rotating direction design, the soil-remediation agent mixing quality is remarkably improved, and the efficient and uniform soil crushing and agent mixing effect is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental protection engineering, and in particular relates to a novel in-situ chain plate type shallow soil remediation device and method. Background Art

[0002] Currently, common in-situ agricultural soil crushing and remediation equipment available on the market primarily relies on powerful cutting, roller compaction, and other techniques to change soil particle size, thereby enhancing the bond between soil and chemicals. Among the various types of soil remediation equipment used in numerous sites for heavy metal pollution, organic contamination, soil compaction, and saline-alkali land remediation, rotary tillers, as a common agricultural machine, are often used as a reference for common in-situ soil crushing and remediation devices. When performing soil crushing operations, rotary tillers demonstrate efficient land leveling and powerful soil breaking and crushing capabilities. The resulting flat surface facilitates the uniform spraying and mixing of subsequent chemicals, effectively improving the effectiveness of soil remediation.

[0003] However, when remediating shallow soil (approximately 0.5 meters deep), the soil's high viscosity limits the ability of the rotary tiller to break it up, resulting in larger soil particles. In this case, the sprayed agent may only adhere to the surface of the lumpy soil and fail to penetrate deeply, thus reducing the effectiveness of the soil remediation.

[0004] In addition, the existing common in-situ soil crushing and remediation devices have relatively single functions, and it is difficult to achieve the integrated operation of soil crushing, spraying and soil-agent mixing. These devices often have the following problems: either the soil crushing performance is excellent, but the uniform mixing performance of the soil and the remediation agent is poor; or the uniform mixing performance of the soil and the agent is excellent, but the soil crushing performance is insufficient. In order to achieve all functions, it is usually necessary to equip a variety of devices, which leads to problems such as complex structure, cumbersome control, low crushing rate, poor uniform mixing and low degree of automation, which cannot meet the actual needs of the current soil remediation environment. These problems are not only not conducive to the scale and high-quality development of in-situ soil crushing and remediation devices, but also affect the efficiency of various types of soil remediation such as heavy metal pollution, organic pollution, soil compaction, and saline-alkali land remediation. Therefore, there is a need for a new in-situ chain plate shallow soil remediation device and method that is easy to operate and has good soil remediation effect to meet the actual needs of the soil remediation environment. Summary of the Invention

[0005] The purpose of the present invention is to provide a novel in-situ chain-plate shallow soil remediation device and method that is easy to operate and has good soil remediation effect to meet the actual needs of the soil remediation environment. The device loosens the soil through deep plowing operations, optimizes the soil density, moisture and gas and heat conditions, and accurately sprays the soil remediation agent into the broken soil to achieve sufficient mixing of the agent and the soil, thereby efficiently completing the remediation of heavy metal contaminated soil.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A novel in-situ chain-plate shallow soil remediation device comprises a tractor body, a chain-plate mixing mechanism, and a chemical discharge mechanism. The chain-plate mixing mechanism is mounted at the rear of the tractor body, and the chemical discharge mechanism is mounted at the front of the tractor body. The chain plate type mixing mechanism includes a frame, a mixing reduction motor, a mixing driving shaft, a universal coupling, a first transmission assembly, a second transmission assembly, a left plate, a right plate, a first guide wheel, a second guide wheel, a guide shaft, a knife seat, a fixed plate, a mixing knife, a first mounting chain, a bottom shaft, a second mounting chain, a first bottom wheel and a second bottom wheel. The mixing reduction motor is mounted on the frame and arranged in the middle part of the mixing driving shaft. The left plate is arranged on the left side of the frame and extends downward. The right plate is arranged on the right side of the frame and extends downward. The two ends of the universal coupling are respectively connected to the gearbox and the mixing reduction motor of the tractor body. The first transmission assembly and the second transmission assembly are respectively arranged at the left and right ends of the mixing driving shaft. The guide shaft The two ends are respectively mounted on the left plate and the right plate, the first guide wheel and the second guide wheel are both mounted on the guide shaft, the first guide wheel is connected to the first mounting chain, the second guide wheel is connected to the second mounting chain, the first transmission assembly and the second transmission assembly are chain transmission mechanisms, the first bottom wheel and the second bottom wheel are sprockets corresponding to the first mounting chain and the second mounting chain, the first bottom wheel and the second bottom wheel are respectively mounted on the left and right ends of the bottom shaft, the first mounting chain is mounted on the first transmission assembly and the first bottom wheel, the second mounting chain is mounted on the second transmission assembly and the second bottom wheel, the fixed plate is arranged between the first mounting chain and the second mounting chain, the knife holder is mounted on the fixed plate, and the uniform mixing knife is mounted on the knife holder; Several rows of fixed plates are installed between the first mounting chain and the second mounting chain. Several knife seats are installed on the fixed plates. Each knife seat is correspondingly installed with a mixing knife. The mixing knives installed on two adjacent rows of fixed plates have opposite rotation directions. The medicine discharge mechanism includes a medicine adding box, a medicine adding motor, a first pulley, a second pulley, a third pulley, a medicine mixing shaft, a medicine discharging shaft, a medicine discharging blade and a medicine mixing stirring rod. The medicine adding box is arranged at the front end of the tractor body, the medicine adding box includes an upper box body and a lower box body arranged at the lower end of the upper box body, the upper box body and the lower box body are internally connected, the upper box body is a square box body, the lower box body is a trapezoidal box body with front and rear side panels retracted inwardly, and the lower end of the lower box body is provided with an inwardly retracted discharge port, the medicine adding motor is arranged on the side of the medicine adding box, the first pulley is installed on the output shaft of the medicine adding motor, the medicine discharging shaft is installed at the discharge port of the lower box body, and a number of medicine discharging blades are arranged along the circumference of the medicine discharging shaft, and a closed medicine discharging cavity is formed between adjacent medicine discharging blades and the inner wall of the lower box body. When the medicine discharging shaft drives the medicine discharging blades to rotate to the medicine discharging cavity through the discharge port of the lower box body, the medicine in the medicine discharging cavity is discharged through the discharge port; The left end of the medicine discharging shaft extends to the outside of the left side plate of the lower box body to form a first extension part, the second pulley is installed on the first extension part, the medicine mixing shaft is installed inside the upper box body, the left end of the medicine mixing shaft extends to the outside of the left side plate of the upper box body to form a second extension part, the medicine mixing stirring rod is installed on the medicine mixing shaft, and the third pulley is installed on the second extension part. The first pulley, the second pulley and the third pulley are connected by a V-belt drive to form a belt drive mechanism.

[0007] The frame includes a left plate, a right plate, a lower connecting rod, an upper connecting rod, a left oblique rod, a right oblique rod, a rear oblique rod, a first mounting plate, a second mounting plate and a third mounting plate, the left ends of the lower connecting rod and the upper connecting rod are connected to the left plate, the right ends of the lower connecting rod and the upper connecting rod are connected to the right plate, the top ends of the left oblique rod, the right oblique rod and the rear oblique rod are connected upward to form a mounting portion, the bottom end of the left oblique rod is connected to the left part of the lower connecting rod, the bottom end of the right oblique rod is connected to the right part of the lower connecting rod, and the bottom end of the rear oblique rod is connected to the upper connecting rod, the first mounting plate is mounted on the left part of the front side surface of the lower connecting rod, the second mounting plate is mounted on the right part of the front side surface of the lower connecting rod, and the third mounting plate is mounted on the mounting portion; the frame is connected to the lifting system at the rear end of the tractor body through the first mounting plate, the second mounting plate and the third mounting plate.

[0008] A plurality of reinforcing pipe shafts are arranged between the left plate and the right plate.

[0009] A left tensioning plate and a right tensioning plate are respectively provided at the lower parts of the left side plate and the right side plate, and the left and right ends of the bottom shaft are respectively connected to the left tensioning plate and the right tensioning plate.

[0010] The upper cover of the frame is provided with a mud guard.

[0011] The number of fixed plates is 24 and the number of tool holders is 9.

[0012] The angle between the chain plate type mixing mechanism and the ground horizontal line is 80°~100° The shallow soil remediation method is implemented based on the novel in-situ chain plate type shallow soil remediation device, and includes the following steps: First, the soil remediation device is driven to the ground to be remediated by the tractor body, and then the corresponding soil remediation agent is added to the dosing box. Then, the power system of the tractor body is started. The power system transmits power to the mixing reduction motor through the universal coupling, and drives the first transmission assembly and the second transmission assembly to operate through the mixing shaft, thereby driving the mixing knife installed on the first mounting chain and the second mounting chain to rotate. The chain plate type mixing mechanism is driven downward by the hydraulic lifting system at the rear end of the tractor body until the chain plate type mixing mechanism is perpendicular to the ground. During the movement, the mixing knife cuts the soil Crushing treatment, then, start the dosing motor of the agent discharge mechanism, the dosing motor drives the discharge shaft and the mixing shaft to rotate through the belt drive, and the mixing stirring rod on the mixing shaft stirs the soil remediation agent, and the stirred soil remediation agent falls into the drug discharge chamber. When the drug discharge chamber rotates to the discharge port, the soil remediation agent in the drug discharge chamber falls onto the soil through the discharge port, and finally the tractor body is driven to move for soil remediation work. During the movement of the tractor body, the agent discharge mechanism discharges the soil remediation agent onto the soil to be repaired, and then the chain plate type mixing mechanism cuts and crushes the soil, thereby realizing soil remediation.

[0013] The novel, easily controlled and highly efficient in-situ chain-plate shallow soil remediation device and method provided in this application can effectively improve soil fragmentation, enhance the uniformity of the drug-soil mix, increase automation, and effectively enhance the passivation efficiency of heavy metals in shallow soil during heavy metal treatment. Furthermore, this application offers a wide remediation adjustment range, reaching a maximum depth of 1.5 m, with high-quality soil fragmentation. Furthermore, the device's high degree of automation improves efficiency and reduces costs, contributing to improved soil structure.

[0014] The mixing blades of this application are designed with an arrangement and alternating rotation direction. The chain-plate mixing mechanism of this application contains 216 mixing blades, which are divided into 24 groups of 9 blades each, and the blades of two adjacent groups adopt opposite rotation directions. This design enables the device to efficiently crush the soil when it rotates repeatedly under the drive of the chain, and to fully and evenly mix the pre-spread soil remediation agent with the soil within a specified shallow depth. Through this unique blade arrangement and alternating rotation direction design, the present invention significantly improves the mixing quality of soil-remediation agent, and achieves efficient and uniform soil crushing and agent mixing effects.

[0015] The present application has a compact and clear structure, simple operation and easy control. The operator only needs to have a simple understanding to use it to complete the soil remediation process, thereby minimizing the impact of personnel replacement on the function of the device and improving the soil remediation efficiency. In addition, the present application controls the rotation speed of the discharge shaft and the discharge blades through a belt transmission system, so that the soil remediation agent can be evenly spread from the bottom discharge port of the dosing box to the soil surface, ensuring the uniformity of the agent distribution. Furthermore, the present invention adjusts the downward inclination angle of the entire chain plate type mixing mechanism through the hydraulic control system of the tractor body, so that the chain plate type mixing mechanism is perpendicular to the ground, and can accurately control the depth of the mixing device into the soil to meet different soil conditions and remediation needs.

[0016] The mixing and stirring rod within the dosing tank of this invention is driven by a belt drive system, continuously stirring the soil remediation agent, effectively preventing accumulation and clogging within the tank and ensuring uniform distribution of the agent. Driven by the tractor's hydraulic control system and generator, this system automates dosing, mixing, soil crushing, and agent mixing, reducing labor intensity and improving operational efficiency. The structure of this invention is available in standard and custom sizes, with optional extended service life, in addition to the extended lifespan provided by maintenance features. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the soil remediation device of the present invention.

[0018] Figure 2 for Figure 1 Enlarged view of part A in .

[0019] Figure 3 It is a structural schematic diagram of the chain plate type homogeneous mixing mechanism of the present invention.

[0020] Figure 4 It is a front view of the chain plate type mixing mechanism of the present invention.

[0021] Figure 5 It is a side view of the chain plate type mixing mechanism of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the medicine discharge mechanism of the present invention.

[0023] Figure 7 This is a schematic structural diagram of the internal medicine discharge blades and medicine mixing stirring rods of the medicine discharge mechanism of the present invention. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0025] Example 1 like Figure 1-7As shown, it includes a tractor body 1, a chain plate type mixing mechanism 2 and a medicine discharge mechanism 3. The chain plate type mixing mechanism 2 is installed at the rear of the tractor body 1, and the medicine discharge mechanism 3 is installed at the front of the tractor body 1; The chain plate type mixing mechanism 2 includes a frame 4, a mixing reduction motor 5, a mixing driving shaft 6, a universal coupling 7, a first transmission assembly 8, a second transmission assembly 9, a left side plate 10, a right side plate, a first guide wheel 12, a second guide wheel, a guide shaft 13, a knife seat 14, a fixed plate 15, a mixing knife 16, a first mounting chain 17, a bottom shaft 18, a second mounting chain 19, a first bottom wheel 20 and a second bottom wheel. The mixing reduction motor 5 is mounted on the frame 4 and is arranged in the middle part of the mixing driving shaft 6. The left side plate 10 is arranged on the left side of the frame 4 and extends downward, and the right side plate is arranged on the right side of the frame 4 and extends downward. The two ends of the universal coupling 7 are respectively connected to the gearbox and the mixing reduction motor 5 of the tractor body 1. The first transmission assembly 8 and the second transmission assembly 9 are respectively arranged at the left and right ends of the mixing driving shaft 6. The two ends of the guide shaft 13 are respectively mounted on the left side plate 10 and the right On the side plate, the first guide wheel 12 and the second guide wheel are both mounted on the guide shaft 13, the first guide wheel 12 is transmission-connected to the first mounting chain 17, the second guide wheel is transmission-connected to the second mounting chain 19, the first transmission assembly 8 and the second transmission assembly 9 are both chain transmission mechanisms (chain transmission mechanisms are transmission mechanisms well known in the art and are not described here in detail), the first bottom wheel 20 and the second bottom wheel are both sprockets corresponding to the first mounting chain 17 and the second mounting chain 19, the first bottom wheel 20 and the second bottom wheel are respectively mounted on the left and right ends of the bottom shaft 18, the first mounting chain 17 is mounted on the first transmission assembly 8 and the first bottom wheel 20, the second mounting chain 19 is mounted on the second transmission assembly 9 and the second bottom wheel, the fixed plate 15 is arranged between the first mounting chain 17 and the second mounting chain 19, the knife seat 14 is mounted on the fixed plate 15, and the mixing knife 16 is mounted on the knife seat 14; Several rows of fixed plates 15 are installed between the first mounting chain 17 and the second mounting chain 19. Several knife seats 14 are installed on the fixed plates 15. Each knife seat 14 is correspondingly installed with a mixing knife 16. The rotating directions of the mixing knives 16 installed on the two adjacent rows of fixed plates 15 are opposite. The mixing knives 16 are "L"-shaped rotary cutters, such as Figure 3 and Figure 5 As shown, when one row of uniform mixing blades 16 faces left, the upper and lower rows of uniform mixing blades 16 face right. This cyclic arrangement for throwing, cutting and crushing the soil can greatly improve the crushing effect of the soil. The medicine discharge mechanism 3 includes a medicine adding box 22, a medicine adding motor 23, a first pulley 24, a second pulley 25, a third pulley 26, a medicine mixing shaft 27, a medicine discharging shaft 28, a medicine discharging blade 29 and a medicine mixing stirring rod 30. The medicine adding box 22 is arranged at the front end of the tractor body 1. The medicine adding box 22 includes an upper box body and a lower box body arranged at the lower end of the upper box body. The upper box body and the lower box body are internally connected. The upper box body is a square box body, and the lower box body is a trapezoidal box body with the front and rear side panels contracted inward. The lower end of the lower box body is A retracted discharge port is provided, a dosing motor 23 is provided on the side of the dosing box 22, a first pulley 24 is installed on the output shaft of the dosing motor 23, a discharge shaft 28 is installed at the discharge port of the lower box body, and a plurality of discharge blades 29 are provided along the circumference of the discharge shaft 28. A closed discharge cavity is formed between adjacent discharge blades 29 and the inner wall of the lower box body. When the discharge shaft 28 drives the discharge blades 29 to rotate until the discharge cavity passes through the discharge port of the lower box body, the medicine in the discharge cavity is discharged through the discharge port; The left end of the medicine discharging shaft 28 extends to the outside of the left side plate 10 of the lower box body to form a first extension portion, the second pulley 25 is installed on the first extension portion, the medicine mixing shaft 27 is installed inside the upper box body, the left end of the medicine mixing shaft 27 extends to the outside of the left side plate 10 of the upper box body to form a second extension portion, the medicine mixing stirring rod 30 is installed on the medicine mixing shaft 27, and the third pulley 26 is installed on the second extension portion. The first pulley 24, the second pulley 25 and the third pulley 26 are connected by a V-belt drive to form a belt drive mechanism.

[0026] The frame 4 includes a left plate, a right plate, a lower connecting rod, an upper connecting rod, a left oblique rod, a right oblique rod, a rear oblique rod, a first mounting plate, a second mounting plate, and a third mounting plate. The left ends of the lower connecting rod and the upper connecting rod are connected to the left plate, the right ends of the lower connecting rod and the upper connecting rod are connected to the right plate, the top ends of the left oblique rod, the right oblique rod, and the rear oblique rod are connected upward to form a mounting portion. The bottom end of the left oblique rod is connected to the left part of the lower connecting rod, the bottom end of the right oblique rod is connected to the right part of the lower connecting rod, and the bottom end of the rear oblique rod is connected to the upper connecting rod. The first mounting plate is mounted on the left side of the front side of the lower connecting rod, the second mounting plate is mounted on the right side of the front side of the lower connecting rod, and the third mounting plate is mounted on the mounting portion. The frame 4 is connected to the lifting system of the rear end of the tractor body 1 through the first mounting plate, the second mounting plate, and the third mounting plate. The precise coordination of the chain drive used in the present application ensures stable power transmission, so that the uniform mixing blade 16 can continuously and efficiently process soil to meet the needs of agricultural production or other soil treatment operations.

[0027] A plurality of reinforcing pipe shafts 31 are provided between the left side plate 10 and the right side plate, which greatly enhance the supporting function of the left side plate 10 and the right side plate.

[0028] A left tensioning plate 21 and a right tensioning plate are respectively provided at the lower portion of the left side plate 10 and the right side plate, and the left and right ends of the bottom shaft 18 are respectively connected to the left tensioning plate 21 and the right tensioning plate.

[0029] The upper cover of the frame 4 is provided with a mud guard 11. The angle between the chain plate type mixing mechanism 2 and the ground horizontal line is 80 ° ~ 100 °. Under normal circumstances, the chain plate type mixing mechanism 2 works perpendicular to the ground. In the actual working process, it can be fine-tuned according to actual needs.

[0030] There are 24 fixed plates 15 and 9 blade holders 14. The mixing blades 16 on the two adjacent groups of blade holders 14 have opposite rotation directions. The mixing blades 16 of the present application are designed with arrangement and alternating rotation directions. The chain plate type mixing mechanism 2 of the present application includes 216 mixing blades 16, which are divided into 24 groups, with 9 blades in each group. The two adjacent groups of blades have opposite rotation directions. This design enables the device to efficiently crush the soil when it rotates repeatedly driven by the chain, and to fully and evenly mix the pre-spread soil remediation agent with the soil within a shallow specified depth. Through this unique blade arrangement and alternating rotation direction design, the present invention significantly improves the mixing quality of the soil-remediation agent, and achieves efficient and uniform soil crushing and agent mixing effects.

[0031] The present application has a compact and clear structure, is easy to operate and convenient to control. The operator only needs to have a simple understanding of it to use it to complete the soil remediation process, thereby minimizing the impact of personnel replacement on the function of the device and improving the soil remediation efficiency. In addition, the present application controls the rotation speed of the discharge shaft 28 and the discharge blade 29 through a belt transmission system, so that the soil remediation agent can be evenly spread from the bottom discharge port of the dosing box 22 to the soil surface, ensuring the uniformity of the agent distribution. Furthermore, the present invention adjusts the downward inclination angle of the entire chain plate type mixing mechanism 2 through the hydraulic control system of the tractor body 1, so that the chain plate type mixing mechanism 2 is perpendicular to the ground, and the depth of the mixing device into the soil can be accurately controlled to meet different soil conditions and remediation requirements.

[0032] Furthermore, the proposed repair device boasts low energy consumption and high efficiency, enabling efficient soil treatment while maintaining low energy consumption. During tillage, it is less destructive to the surface, helping to protect soil structure and surface vegetation, complying with national environmental protection policies and resulting in significant ecological benefits.

[0033] The mixing and stirring rod 30 within the dosing tank 22 of the present invention is driven by a belt drive system, continuously stirring the soil remediation agent, effectively preventing accumulation and clogging within the tank 22 and ensuring uniform distribution of the agent. Driven by the hydraulic control system and generator of the tractor body 1, the present invention automates the dosing, mixing, soil crushing, and agent mixing operations, reducing labor intensity and improving operational efficiency. The present invention's structure is available in standard and custom sizes, with optional extended service life, in addition to the extended lifespan provided by maintenance features.

[0034] Example 2 The shallow soil remediation method is implemented based on the novel in-situ chain plate type shallow soil remediation device, and includes the following steps: First, the soil remediation device is driven to the ground to be remediated by the tractor body 1, and then the corresponding soil remediation agent is added to the dosing box 22. Then, the power system of the tractor body 1 is started, and the power system transmits power to the mixing reduction motor 5 through the universal coupling 7, and drives the first transmission component 8 and the second transmission component 9 to operate through the mixing shaft, thereby driving the mixing knife 16 installed on the first mounting chain 17 and the second mounting chain 19 to rotate. The chain plate type mixing mechanism 2 is driven downward by the hydraulic lifting system at the rear end of the tractor body 1 until the chain plate type mixing mechanism 2 is perpendicular to the ground. The angle can be fine-tuned according to actual operation needs. During the movement, the mixing The blade 16 cuts and crushes the soil, and then the dosing motor 23 of the agent discharge mechanism 3 is started. The dosing motor 23 drives the discharge shaft 28 and the mixing shaft 27 to rotate through a belt drive. The mixing stirring rod 30 on the mixing shaft 27 stirs the soil remediation agent. The stirred soil remediation agent falls into the drug discharge chamber. When the drug discharge chamber rotates to the discharge port, the soil remediation agent in the drug discharge chamber falls onto the soil through the discharge port. Finally, the tractor body 1 is driven to move to perform soil remediation. During the movement of the tractor body 1, the agent discharge mechanism 3 discharges the soil remediation agent onto the soil to be repaired, and then the chain plate mixing mechanism 2 cuts and crushes the soil, thereby achieving soil remediation. After the cutting action of the unique blade teeth of the mixing blade 16, the peeled soil fragments will be transported to the position of the upper mud guard 11 under the transmission action of the chain. In this process, the soil is crushed in situ and the soil-agent is evenly mixed. When the first working position of the chain plate type mixing mechanism 2 reaches the preset depth, the tractor body 1 will start and move to the next area to be treated. If the soil remediation effect after the first operation does not meet the expected requirements, a second operation can be performed to ensure the quality and effect of the soil remediation.

[0035] The novel, easily controlled and highly efficient in-situ chain-plate shallow soil remediation device and method provided in this application can effectively improve soil fragmentation, enhance the uniformity of the drug-soil mix, increase automation, and effectively enhance the passivation efficiency of heavy metals in shallow soil during heavy metal treatment. Furthermore, this application offers a wide remediation adjustment range, reaching a maximum depth of 1.5 m, with high-quality soil fragmentation. Furthermore, the device's high degree of automation improves efficiency and reduces costs, contributing to improved soil structure.

[0036] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A new type of in-situ chain plate shallow soil remediation device, characterized by: The tractor comprises a tractor body, a chain plate type mixing mechanism and a medicine discharge mechanism, wherein the chain plate type mixing mechanism is installed at the rear of the tractor body and the medicine discharge mechanism is installed at the front of the tractor body; The chain plate type mixing mechanism includes a frame, a mixing reduction motor, a mixing driving shaft, a universal coupling, a first transmission assembly, a second transmission assembly, a left plate, a right plate, a first guide wheel, a second guide wheel, a guide shaft, a knife seat, a fixed plate, a mixing knife, a first mounting chain, a bottom shaft, a second mounting chain, a first bottom wheel and a second bottom wheel. The mixing reduction motor is mounted on the frame and arranged in the middle part of the mixing driving shaft. The left plate is arranged on the left side of the frame and extends downward. The right plate is arranged on the right side of the frame and extends downward. The two ends of the universal coupling are respectively connected to the gearbox and the mixing reduction motor of the tractor body. The first transmission assembly and the second transmission assembly are respectively arranged at the left and right ends of the mixing driving shaft. The guide shaft The two ends are respectively mounted on the left plate and the right plate, the first guide wheel and the second guide wheel are both mounted on the guide shaft, the first guide wheel is connected to the first mounting chain, the second guide wheel is connected to the second mounting chain, the first transmission assembly and the second transmission assembly are chain transmission mechanisms, the first bottom wheel and the second bottom wheel are sprockets corresponding to the first mounting chain and the second mounting chain, the first bottom wheel and the second bottom wheel are respectively mounted on the left and right ends of the bottom shaft, the first mounting chain is mounted on the first transmission assembly and the first bottom wheel, the second mounting chain is mounted on the second transmission assembly and the second bottom wheel, the fixed plate is arranged between the first mounting chain and the second mounting chain, the knife holder is mounted on the fixed plate, and the uniform mixing knife is mounted on the knife holder; Several rows of fixed plates are installed between the first mounting chain and the second mounting chain. Several knife seats are installed on the fixed plates. Each knife seat is correspondingly installed with a mixing knife. The mixing knives installed on two adjacent rows of fixed plates have opposite rotation directions. The medicine discharge mechanism includes a medicine adding box, a medicine adding motor, a first pulley, a second pulley, a third pulley, a medicine mixing shaft, a medicine discharging shaft, a medicine discharging blade and a medicine mixing stirring rod. The medicine adding box is arranged at the front end of the tractor body, the medicine adding box includes an upper box body and a lower box body arranged at the lower end of the upper box body, the upper box body and the lower box body are internally connected, the upper box body is a square box body, the lower box body is a trapezoidal box body with front and rear side panels retracted inwardly, and the lower end of the lower box body is provided with an inwardly retracted discharge port, the medicine adding motor is arranged on the side of the medicine adding box, the first pulley is installed on the output shaft of the medicine adding motor, the medicine discharging shaft is installed at the discharge port of the lower box body, and a number of medicine discharging blades are arranged along the circumference of the medicine discharging shaft, and a closed medicine discharging cavity is formed between adjacent medicine discharging blades and the inner wall of the lower box body. When the medicine discharging shaft drives the medicine discharging blades to rotate to the medicine discharging cavity through the discharge port of the lower box body, the medicine in the medicine discharging cavity is discharged through the discharge port; The left end of the medicine discharging shaft extends to the outside of the left side plate of the lower box body to form a first extension part, the second pulley is installed on the first extension part, the medicine mixing shaft is installed inside the upper box body, the left end of the medicine mixing shaft extends to the outside of the left side plate of the upper box body to form a second extension part, the medicine mixing stirring rod is installed on the medicine mixing shaft, and the third pulley is installed on the second extension part. The first pulley, the second pulley and the third pulley are connected by a V-belt drive to form a belt drive mechanism.

2. The novel in-situ chain plate type shallow soil remediation device according to claim 1 is characterized in that: The frame includes a left plate, a right plate, a lower connecting rod, an upper connecting rod, a left oblique rod, a right oblique rod, a rear oblique rod, a first mounting plate, a second mounting plate and a third mounting plate, the left ends of the lower connecting rod and the upper connecting rod are connected to the left plate, the right ends of the lower connecting rod and the upper connecting rod are connected to the right plate, the top ends of the left oblique rod, the right oblique rod and the rear oblique rod are connected upward to form a mounting portion, the bottom end of the left oblique rod is connected to the left part of the lower connecting rod, the bottom end of the right oblique rod is connected to the right part of the lower connecting rod, and the bottom end of the rear oblique rod is connected to the upper connecting rod, the first mounting plate is mounted on the left part of the front side surface of the lower connecting rod, the second mounting plate is mounted on the right part of the front side surface of the lower connecting rod, and the third mounting plate is mounted on the mounting portion; the frame is connected to the lifting system at the rear end of the tractor body through the first mounting plate, the second mounting plate and the third mounting plate.

3. The novel in-situ chain plate type shallow soil remediation device according to claim 2 is characterized by: A plurality of reinforcing pipe shafts are arranged between the left plate and the right plate.

4. The novel in-situ chain plate type shallow soil remediation device according to claim 3 is characterized by: A left tensioning plate and a right tensioning plate are respectively provided at the lower parts of the left side plate and the right side plate, and the left and right ends of the bottom shaft are respectively connected to the left tensioning plate and the right tensioning plate.

5. The novel in-situ chain plate type shallow soil remediation device according to claim 4 is characterized in that: The upper cover of the frame is provided with a mud guard.

6. The novel in-situ chain plate type shallow soil remediation device according to claim 5 is characterized by: The number of fixed plates is 24 and the number of tool holders is 9.

7. The novel in-situ chain plate type shallow soil remediation device according to claim 6 is characterized by: The angle between the chain plate type mixing mechanism and the ground horizontal line is 80° to 100°.

8. A shallow soil remediation method, implemented based on the novel in-situ chain plate type shallow soil remediation device according to any one of claims 1 to 7, characterized in that: The steps include: First, the soil remediation device is driven to the ground to be remediated by the tractor body, and then the corresponding soil remediation agent is added to the dosing box. Then, the power system of the tractor body is started. The power system transmits power to the mixing reduction motor through the universal coupling, and drives the first transmission assembly and the second transmission assembly to operate through the mixing shaft, thereby driving the mixing knife installed on the first mounting chain and the second mounting chain to rotate. The chain plate type mixing mechanism is driven downward by the hydraulic lifting system at the rear end of the tractor body until the chain plate type mixing mechanism is perpendicular to the ground. During the movement, the mixing knife cuts the soil Crushing treatment, then, start the dosing motor of the agent discharge mechanism, the dosing motor drives the discharge shaft and the mixing shaft to rotate through the belt drive, and the mixing stirring rod on the mixing shaft stirs the soil remediation agent, and the stirred soil remediation agent falls into the drug discharge chamber. When the drug discharge chamber rotates to the discharge port, the soil remediation agent in the drug discharge chamber falls onto the soil through the discharge port, and finally the tractor body is driven to move for soil remediation work. During the movement of the tractor body, the agent discharge mechanism discharges the soil remediation agent onto the soil to be repaired, and then the chain plate type mixing mechanism cuts and crushes the soil, thereby realizing soil remediation.

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