Mine soil heavy metal composite remediation and treatment integrated machine

Abstract

The present application relates to the technical field of soil remediation, and discloses a mine soil heavy metal composite remediation and treatment integrated machine; a tractor head is provided with a tail end mounting sleeve, a triangular connecting frame is movably mounted on the tail end mounting sleeve through bolts, a mounting base is fixedly connected to the top end of the connecting frame, a soil scraping cutter head, a driving shaft with helical blades and an isolation sleeve are arranged at the bottom of the mounting base, a liquid storage tank is arranged at the top of the mounting base, and a remediation liquid spraying mechanism with an annular pipe and an atomizing nozzle is arranged on the outer wall of the isolation sleeve; during operation, the cutter head breaks the soil, the driving shaft drives the helical blades to collect the broken soil, the broken soil is sent to the top end of the mounting disc through a discharge port, is dispersed under the action of a dispersion column and centrifugal force, and the remediation liquid is sprayed out through the atomizing nozzle to fully contact the broken soil, so that the heavy metal ions are stabilized to avoid migration and secondary pollution, the mine soil pollution control and treatment are effectively realized, the broken soil is not accumulated after being scattered and thrown, subsequent leveling is facilitated, and the machine integrates crushing and leaching and is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of soil remediation technology, and in particular to an integrated machine for composite remediation and treatment of heavy metals in mine soil. Background Technology

[0002] As crucial sites for mineral resource development, mines not only support socio-economic development but also, through long-term mining and smelting activities, accumulate significant amounts of heavy metals (such as cadmium (Cd), mercury (Hg), lead (Pb), arsenic (As), and copper (Cu)) in the soil. These heavy metals not only alter the physicochemical properties of the soil and affect the stability of the soil ecosystem but may also enter the food chain through crop absorption and groundwater infiltration, posing a potential threat to the growth and development of plants and animals, and indirectly impacting human health and quality of life. Therefore, effective remediation and treatment of heavy metals in mine soils is a key link in maintaining ecological balance, ensuring agricultural production safety, and protecting public health. It holds irreplaceable importance for promoting regional ecological sustainability and achieving harmonious coexistence between humans and nature.

[0003] For example, patent CN111827251A discloses a soil remediation device, which includes components such as a manually assisted push handle, a bottom soil leveling mechanism, a filling mechanism, and a stone slab transport mechanism. A first and third power wheel brackets are connected to the bottom of the second frame plate. This device can perform layered filling and remediation of sand pits: first, a bottom trench is laid with evenly distributed moist soil to stabilize the foundation and ensure close contact between the moist soil and the sidewalls; then, sand and stones of the same type as the surrounding soil are used for filling; finally, large stone slabs are used for long-term compaction to compress and solidify the soil, thereby completing the sand pit remediation.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: Existing soil remediation devices have a single function, and most of them provide soil crushing or chemical agents to wash the soil. Different equipment needs to be operated to crush the soil and carry out subsequent operations, which is inconvenient to use. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing soil remediation equipment has the disadvantage of single function, requires the operation of different equipment to perform staged operations on the soil, and is inconvenient to use. To this end, we propose an integrated machine for composite remediation and treatment of heavy metals in mine soil.

[0006] To achieve the above objectives, this application adopts the following technical solution: an integrated machine for composite remediation and treatment of heavy metals in mine soil, comprising a tractor head and a connecting frame movably connected to the side wall of the rear end of the tractor head, a mounting base fixedly connected to the top of the end of the connecting frame, a soil scraper head fixedly connected to the bottom of the end of the mounting base, a drive shaft rotatably connected to the bottom of the mounting base adjacent to the soil scraper head, a drive motor fixedly connected to the top of the drive shaft extending through to the top of the mounting base, an isolation sleeve fixedly connected to the bottom of the mounting base outside the drive shaft, an installation disc fixedly connected to the bottom of the drive shaft, a spiral blade fixedly connected to the bottom of the installation disc, a plurality of discharge ports evenly opened at the middle of the top of the installation disc, dispersion columns evenly spaced and fixedly connected to the top of the installation disc outside the discharge ports, and a remediation liquid spraying mechanism fixedly connected to the outer wall of the isolation sleeve.

[0007] Preferably, the discharge ports are distributed around the outside of the drive shaft, and the gap between the discharge ports and the adjacent side plates of the spiral blades is set accordingly.

[0008] Preferably, the soil scraper head includes a first hydraulic rod fixedly connected to the bottom of the mounting base and a first gantry frame fixedly connected to the bottom of the first hydraulic rod. A positioning shaft is movably arranged between the side walls at the bottom of the first gantry frame. The end of the positioning shaft extends through to the outside of the side wall of the first gantry frame and the rear end is fixedly connected to a rotary motor. Rotary tillage blades are evenly spaced and fixedly connected to the outer wall of the positioning shaft between the side walls of the first gantry frame.

[0009] Preferably, L-shaped booms are fixedly connected to the outer walls of the two ends of the first gantry frame away from the tractor head. A positioning rod is rotatably connected between the side walls at the bottom of the L-shaped boom. Positioning sleeves are evenly spaced and movably sleeved on the outer walls of the positioning rods. A stamping plate is fixedly connected to the bottom of the positioning sleeve. Two sets of positioning sleeves are fixedly connected to the top of the two ends of the stamping plate. A drive rod is movably sleeved in the positioning sleeve at the top of the stamping plate away from the positioning rod. A crank rocker is movably connected to the end of one end of the drive rod. The end of the crank rocker is fixedly connected to the outer wall of the end of the positioning shaft.

[0010] Preferably, the stamping plate is suspended between the rotary tiller blades and the spiral blades. When the stamping plate is suspended horizontally, the lower end face of the stamping plate is flush with the lower end face of the spiral blades.

[0011] Preferably, the repair fluid spraying mechanism includes several concentric annular tubes, with a connecting tube fixedly connected between the side walls of adjacent annular tubes. Fixed rods are fixedly connected to the inner walls of both ends of the annular tubes at the inner end of the concentric circles, and the ends of the fixed rods are fixedly connected to the side wall of the isolation sleeve. Atomizing nozzles are fixedly connected to the bottom of the annular tubes at uniform intervals. An infusion tube is fixedly connected to the top of one end of the annular tube at the outer end of the concentric circles, and a storage tank is fixedly connected to the end of the infusion tube. The storage tank is fixedly connected to the top of the end of the mounting base.

[0012] Preferably, a dividing blade assembly is fixedly connected to the bottom of the mounting base on the outer side of the soil scraper head. The dividing blade assembly includes a second hydraulic rod fixedly connected to the bottom of the end of the mounting base. A reinforcing plate is fixedly connected to the bottom of the second hydraulic rod. Several longitudinal dividing blades are fixedly connected to the bottom of the reinforcing plate at even intervals. The longitudinal dividing blades and rotary tillage blades are arranged alternately.

[0013] Preferably, a leveling component is fixedly connected to the bottom of the mounting base. The leveling component includes an electric lifting rod fixedly connected to the lower end of the mounting base and a second gantry frame fixedly connected to the lower end of the electric lifting rod. A leveling pressure roller is movably connected between the side walls at the bottom of the second gantry frame. Guide rods are fixedly connected to the top of the second gantry frame on both sides of the electric lifting rod. The top of each guide rod extends movably through to the top of the mounting base, and a limit plate is fixedly connected to the top of the guide rod. A damping spring is wound around the outer wall of the guide rod between the bottom of the limit plate and the top of the mounting base.

[0014] Preferably, when the lower end of the leveling roller extends to the outer side of the bottom of the second portal frame and the damping spring is in the normal relaxed state, the lower end face of the leveling roller is flush with the spiral blade. A pressure rod is fixedly connected to the outer wall of the second portal frame near the spiral blade, and the end of the pressure rod rests on the top of the mounting plate between the dispersing columns.

[0015] Preferably, the drive shaft at the top of the mounting plate is a telescopic structure, including an upper sleeve shaft that is movably inserted through the mounting base and a movable rod that is movably sleeved inside the bottom port of the upper sleeve shaft. An elastic component is fixedly connected between the top of the movable rod and the top plate of the inner cavity of the upper sleeve shaft. Slide grooves are respectively opened on the inner walls of the inner cavities of the upper sleeve shaft on both sides of the movable rod, and protrusions that engage the slide grooves are provided on the outer walls of both sides of the movable rod.

[0016] The technical effects and advantages of this invention are as follows:

[0017] In this invention, a tractor head serves as the power source, and the lifting and lowering of the mounting base are adjusted via a connecting frame and hydraulic piston rod. During operation, the soil scraper head first crushes the mine soil, followed by a drive motor that rotates the drive shaft and spiral blades. The spiral blades catch the crushed soil and collect it along the inner cavity of the spiral, then transport it to the top through the discharge port of the mounting plate. Under the action of centrifugal force, the soil slides and disperses between the dispersion columns. Simultaneously, the remediation liquid in the storage tank enters the annular pipe through the infusion pipe and is sprayed out by the atomizing nozzle, making full contact with the dispersed crushed soil. This effectively stabilizes heavy metal ions in the soil, preventing their migration and secondary pollution. Furthermore, the treated soil, after centrifugal dispersion, does not accumulate, facilitating subsequent leveling. The baffle of the mounting base also reduces dust dispersion during soil crushing. This equipment integrates soil crushing and chemical washing, effectively controlling and treating mine soil pollution, and is convenient and efficient to use. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the overall structure of an integrated machine for composite remediation and treatment of heavy metals in mine soil according to the present invention;

[0020] Figure 2 This is a schematic diagram of the installation structure of components such as the soil scraper head, mounting plate, spiral blade and remediation liquid spraying mechanism of an integrated machine for composite remediation and treatment of heavy metals in mine soil according to the present invention.

[0021] Figure 3 This is a schematic diagram of the installation structure of components such as the mounting plate, spiral blades, and remediation liquid spraying mechanism of an integrated machine for composite remediation and treatment of heavy metals in mine soil according to the present invention.

[0022] Figure 4 This is a schematic cross-sectional view of the drive shaft of an integrated machine for composite remediation and treatment of heavy metals in mine soil according to the present invention.

[0023] Figure 5 This is a schematic diagram of the soil scraping head structure of an integrated machine for composite remediation and treatment of heavy metals in mine soil according to the present invention.

[0024] Figure 6 This invention relates to an integrated machine for composite remediation and treatment of heavy metals in mine soil. Figure 5 Enlarged structural diagram at point A in the middle;

[0025] Figure 7 This is a schematic diagram of the cutting blade assembly structure of an integrated machine for composite remediation and treatment of heavy metals in mine soil according to the present invention;

[0026] Figure 8 This is a schematic diagram of the remediation liquid spraying mechanism of an integrated machine for composite remediation and treatment of heavy metals in mine soil according to the present invention.

[0027] Figure 9 This is a schematic diagram of the leveling component structure of an integrated machine for composite remediation and treatment of heavy metals in mine soil according to the present invention.

[0028] Legend: 1. Tractor head; 2. Connecting frame; 3. Mounting base; 31. Liquid storage tank; 32. Infusion pipe; 4. Soil scraper head; 41. First hydraulic rod; 42. First gantry frame; 421. L-shaped lifting rod; 422. Positioning rod; 423. Positioning sleeve; 424. Stamping plate; 425. Drive rod; 426. Crank rocker arm; 43. Positioning shaft; 44. Rotary tiller blade; 5. Drive shaft; 501. Upper sleeve shaft; 502. Moving rod; 503. Elastic component; 51. Isolation sleeve; 52. Mounting plate; 53. Spiral blade; 54. Discharge port; 55. Dispersion column; 6. Repair fluid spraying mechanism; 61. Annular pipe; 62. Connecting pipe; 63. Fixing rod; 64. Atomizing nozzle; 7. Dividing blade assembly; 71. Second hydraulic rod; 72. Reinforcing plate; 73. Deep dividing blade; 8. Leveling assembly; 81. Electric lifting rod; 82. Second gantry frame; 83. Leveling pressure roller; 84. Guide rod; 85. Damping spring; 86. Pressure rod. Detailed Implementation

[0029] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0030] Reference Figures 1-3 and Figure 8As shown, this invention provides a technical solution: an integrated machine for composite remediation and treatment of heavy metals in mine soil, comprising a tractor head 1, a connecting frame 2, a mounting base 3, a soil scraper head 4, a mounting disc 52, and a spiral blade 53, etc. The tractor head 1 is a power-driven towing device with a canopy-like structure. The connecting frame 2 is movably mounted on the mounting sleeve on the side wall of the rear end of the tractor head 1 using bolts and other tools. The connecting frame 2 has a triangular structure and is supported. The hydraulic piston rod within it can push the mounting base 3 to lift and lower. The top end of the connecting frame 2 is fixedly connected to the bottom end of the mounting base 3 by laser welding or other means. A removable baffle is provided at the bottom edge of the mounting base 3 to control the dispersion of soil crushing dust to a certain extent (not shown). The soil scraper head 4 is fixedly connected to the bottom end of the mounting base 3. A drive shaft 5 is rotatably connected to the bottom of the mounting base 3 adjacent to the cutter head 4. A drive motor is fixedly connected to the top of the mounting base 3 corresponding to the drive shaft 5. The bottom output end of the drive motor is fixedly connected to the drive shaft 5. The lower end of the drive shaft 5 extends through to the bottom of the mounting base 3 and the rear end is fixedly connected to the mounting disc 52. A spiral blade 53 is fixedly connected to the bottom of the mounting disc 52. Several discharge ports 54 are evenly opened at the middle of the top of the mounting disc 52. The discharge ports 54 are distributed around the outside of the drive shaft 5, and the discharge ports 54 are set at the gap between the adjacent side plates of the spiral blade 53. A dispersion column 55 is evenly fixedly connected to the top of the mounting disc 52 outside the discharge port 54. An isolation sleeve 51 is fixedly connected to the bottom of the mounting base 3 outside the drive shaft 5. The isolation sleeve 51 is movably sleeved around the outside of the drive shaft 5. A repair fluid spraying mechanism 6 is fixedly connected to the outer wall of the isolation sleeve 51.

[0031] The remediation fluid spraying mechanism 6 includes three sets of concentric annular tubes 61. A connecting tube 62 is fixedly connected between the side walls of adjacent annular tubes 61. A fixing rod 63 is fixedly connected to the inner walls of both ends of the innermost annular tube 61 of the concentric circle. The end of the fixing rod 63 is fixedly connected to the side wall of the isolation sleeve 51. Atomizing nozzles 64 are fixedly connected at even intervals at the bottom of the annular tubes 61. A delivery tube 32 is fixedly connected to the top of one end of the annular tube 61 at the outer end of the concentric circle. A pump is installed at the inlet end of the delivery tube 32. A storage tank 31 is fixedly connected to the end of the delivery tube 32. The storage tank 31 stores chemical agents (including but not limited to stabilizers) such as remediation fluid for stabilizing heavy metal ions in the soil. The storage tank 31 is fixedly connected to the top of the end of the mounting base 3.

[0032] In use, the tractor head 1 pulls the mounting base 3, the soil scraper head 4, the mounting disc 52, and the spiral blade 53 to move in the area of ​​the mine soil that needs remediation. During movement, the soil scraper head 4, driven by a rotary motor, continuously rotates and scrapes the soil, breaking it up. Simultaneously, the drive motor is started, driving the drive shaft 5 to rotate. The drive shaft 5, using the mounting disc 52, pushes the spiral blade 53 to rotate. When the lower end of the spiral blade 53 contacts the ground, it covers the broken soil. Because one end of the spiral blade 53 is open, it catches the broken mine soil as it rotates. The broken soil gathers at the center along the spiral blade 53's spiral inner cavity. As the spiral blade 53 rotates, it continuously scoops in the broken soil. The soil gathered at the center of the spiral blade 53 flows out from multiple discharge ports 54 at the top center of the mounting disc 52 and spreads evenly on top of the mounting disc 52. Due to the centrifugal force of rotation, the soil slides and disperses in the gaps between the dispersion columns 55 at the top of the mounting plate 52. At this time, the infusion pipe 32 draws the remediation fluid stored in the storage tank 31 and transfers it to the annular pipe 61 on the outer wall of the isolation sleeve 51. Finally, the remediation fluid is sprayed out through the atomizing nozzle 64 at the bottom of the concentrically arranged annular pipe 61 and makes full contact with the dispersed and dispersed mine crushed soil on the dispersion columns 55. The different diameters of the dispersion columns 55 are used to disperse and guide the centrifugally dispersed mine crushed soil, so that it can make full contact with the sprayed remediation fluid. This ensures the stabilization effect on heavy metal ions in the mine soil, avoids their migration and secondary pollution risks, and achieves effective control and treatment of mine soil pollution. At the same time, the soil centrifugally thrown after rinsing will not be concentrated and piled up, which is convenient for subsequent leveling treatment. It integrates soil crushing treatment and chemical rinsing, and is easy to use.

[0033] Reference Figures 2-7 As shown in this embodiment: the soil scraper head 4 includes a first hydraulic rod 41 fixedly connected to the bottom of the mounting base 3 and a first gantry frame 42 fixedly connected to the bottom of the first hydraulic rod 41. A positioning shaft 43 is movably arranged between the side walls at the bottom of the first gantry frame 42. The end of the positioning shaft 43 extends through to the outside of the side wall of the first gantry frame 42 and the rear end is fixedly connected to a rotary motor. A number of rotary tillage blades 44 are evenly spaced and fixedly connected to the outer wall of the positioning shaft 43 between the side walls of the first gantry frame 42. The rotary tillage blades 44 are composed of a square fixing plate and L-shaped blades. Four sets of L-shaped blades are arranged in a windmill shape at the edge of each square fixing plate. The four sets of L-shaped blades are distributed on the outer walls of both sides of the square fixing plate.

[0034] L-shaped booms 421 are fixedly connected to the outer walls of the two ends of the first portal frame 42 away from the tractor head 1. A positioning rod 422 is rotatably connected between the side walls at the bottom of the L-shaped boom 421. Positioning sleeves 423 are evenly spaced and movably sleeved on the outer wall of the positioning rod 422. A stamping plate 424 is fixedly connected to the bottom of the positioning sleeve 423. Two sets of positioning sleeves 423 are fixedly connected to the top of both ends of the stamping plate 424. A drive rod 425 is movably sleeved in the positioning sleeve 423 at the top of the stamping plate 424 away from the positioning rod 422. A crank rocker arm 426 is movably connected to the end of one end of the drive rod 425. The end of the crank rocker arm 426 is fixedly connected to the outer wall of the end of the positioning shaft 43.

[0035] The stamping plate 424 is suspended between the rotary tiller blade 44 and the spiral blade 53. When the stamping plate 424 is suspended horizontally, the lower end face of the stamping plate 424 is flush with the lower end face of the spiral blade 53.

[0036] A dividing blade assembly 7 is fixedly connected to the bottom of the mounting base 3 on the outer side of the soil scraper head 4. The dividing blade assembly 7 includes a second hydraulic rod 71 fixedly connected to the bottom of the end of the mounting base 3. A reinforcing plate 72 is fixedly connected to the bottom of the second hydraulic rod 71. Several longitudinal dividing blades 73 are evenly spaced and fixedly connected to the bottom of the reinforcing plate 72. The longitudinal dividing blades 73 and the rotary tillage blades 44 are arranged alternately. The front end of the longitudinal dividing blades 73 is provided with a triangular tip.

[0037] In operation, the second hydraulic rod 71 lowers the height of the reinforcing plate 72 and the longitudinal dividing blade 73, pushing the longitudinal dividing blade 73 deep into the mine soil. As the equipment moves, the longitudinal dividing blade 73 slides in the soil, dividing it into different blocks with gaps between them. At the same time, the rotary motor drives the rotary tiller blade 44 to rotate via the positioning shaft 43. When the rotary tiller blade 44 rotates, it scrapes and breaks up the divided soil blocks. The first hydraulic rod 41 lowers the height of the rotary tiller blade 44 in a timely manner, allowing the rotary tiller blade 44 to circulate and scrape and crush the soil from the side of the divided blocks, avoiding direct top-down scraping. The problem of soil clumping during excavation is addressed by using a rotary tiller. When the rotary tiller blades 44 rotate, the positioning shaft 43 simultaneously swings using a crank rocker arm 426. The crank rocker arm 426, in conjunction with the drive rod 425, pushes the pressing plate 424 to swing back and forth on one end based on the positioning rod 422. When the end of the pressing plate 424 on the drive rod 425 is raised and moves forward, it slides and compresses the crushed mine soil. When the end of the pressing plate 424 on the drive rod 425 is lowered, it horizontally presses the crushed mine soil, thereby further increasing the uniformity of the crushed mine soil and preventing soil lumps from affecting its remediation and treatment effects. This method is convenient to use.

[0038] Reference Figures 2-3 and Figure 9As shown in this embodiment: a leveling component 8 is fixedly connected to the bottom of the mounting base 3. The leveling component 8 includes an electric lifting rod 81 fixedly connected to the lower end of the mounting base 3 and a second gantry frame 82 fixedly connected to the lower end of the electric lifting rod 81. A leveling pressure roller 83 is movably connected between the side walls at the bottom of the second gantry frame 82. Guide rods 84 are fixedly connected to the top of the second gantry frame 82 on both sides of the electric lifting rod 81. The top ends of the guide rods 84 movably extend through to the top of the mounting base 3, and a limit plate is fixedly connected to the top of the guide rods 84. A damping spring 85 is wound on the outer wall of the guide rod 84 between the bottom of the limit plate and the top of the mounting base 3. The damping spring 85 is used to reduce the vibration caused by the rolling of the leveling pressure roller 83.

[0039] The lower end of the leveling roller 83 extends to the outer side of the bottom of the second portal frame 82, and the lower end face of the leveling roller 83 is flush with the spiral blade 53. A pressure rod 86 is fixedly connected to the outer wall of the second portal frame 82 near the spiral blade 53. The end of the pressure rod 86 rests on the top of the mounting plate 52 between the dispersion columns 55. The pressure rod 86 has an F-shaped structure, and the bottom of its vertical rod is spherical to reduce the sliding friction resistance generated with the top of the mounting plate 52.

[0040] The drive shaft 5 at the top of the mounting plate 52 is a telescopic structure, including an upper sleeve shaft 501 that is movably inserted through the mounting base 3 and a movable rod 502 that is movably sleeved inside the bottom port of the upper sleeve shaft 501. An elastic component 503 is fixedly connected between the top of the movable rod 502 and the top plate of the inner cavity of the upper sleeve shaft 501. Slide grooves are respectively opened on the inner walls of the inner cavities of the upper sleeve shaft 501 on both sides of the movable rod 502, and protrusions that engage the slide grooves are provided on the outer walls of both sides of the movable rod 502.

[0041] In use, the electric lifting rod 81 uses the second portal frame 82 to push the leveling roller 83 to press against the ground. The guide rod 84 uses the limiting plate to compress the damping spring 85. When the equipment moves, the leveling roller 83 rolls against the ground using its own weight. After the washed and repaired mine soil is centrifugally thrown onto the ground, the leveling roller 83 can automatically compact and level the loose soil, preventing the soil from being too loose and easily washed away by rainwater. At the same time, the leveling roller 83 presses down after moving down. The rod 86 will simultaneously squeeze the mounting plate 52. The pressure rod 86 pushes the mounting plate 52 to work with the moving rod 502 to stretch the elastic component 503 in the upper sleeve shaft 501, so as to realize the automatic synchronous adjustment of the height of the spiral plate 53 and the leveling roller 83. When the mounting plate 52 rotates with the drive shaft 5, the pressure rod 86 will laterally disturb the soil that is dispersed and moving between the gaps of the top dispersion column 55 of the mounting plate 52, so that it is more evenly dispersed, which makes it easier for the leveling roller 83 to effectively roll and level it.

[0042] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A mine soil heavy metal composite repair and management all-in-one machine, characterized in that, Including tractor head (1) and movable connection in tractor head (1) tail end side wall on connecting frame (2), the connecting frame (2) end top fixedly connected with installation base (3), the installation base (3) end head bottom fixedly connected with soil scraping cutter head (4), the soil scraping cutter head (4) adjacent installation base (3) bottom rotatably connected with drive shaft (5), the drive shaft (5) top end extends to the installation base (3) top rear end fixedly connected with drive motor, the drive shaft (5) outside installation base (3) bottom fixedly connected with isolation sleeve (51), the drive shaft (5) bottom fixedly connected with mounting disc (52), the mounting disc (52) bottom fixedly connected with helical blade (53), the mounting disc (52) top end middle part is evenly provided with a plurality of discharge ports (54), the discharge port (54) outside mounting disc (52) top evenly spaced fixedly connected with dispersion column (55), the isolation sleeve (51) outer wall is fixedly connected with repair liquid spraying mechanism (6); The soil scraping cutter head (4) includes a first hydraulic rod (41) fixedly connected to the bottom of the installation base (3) and a first door-shaped frame (42) fixedly connected to the bottom of the first hydraulic rod (41), the first door-shaped frame (42) is movably provided with a positioning shaft (43) between the side walls at the bottom, the positioning shaft (43) extends through the end to the outside of the side wall of the first door-shaped frame (42) and is fixedly connected with a rotary motor at the rear end, and the positioning shaft (43) is fixedly connected with a rotary blade (44) on the outer wall between the side walls of the first door-shaped frame (42) evenly and at intervals. The repair liquid spraying mechanism (6) includes a plurality of annular tubes (61) arranged in concentric circles, adjacent annular tubes (61) are fixedly connected with a communication pipe (62) between the side walls, the annular tubes (61) at the inner side of the concentric circles are fixedly connected with a fixed rod (63) on the inner wall at both ends, the fixed rod (63) is fixedly connected to the side wall of the isolation sleeve (51) at the end, the annular tubes (61) are fixedly connected with an atomizing nozzle (64) at the bottom evenly and at intervals, the annular tubes (61) at the outer side of the concentric circles are fixedly connected with a liquid delivery pipe (32) at one end of the top, the liquid delivery pipe (32) is fixedly connected with a liquid storage tank (31) at the end, and the liquid storage tank (31) is fixedly connected to the end head top of the installation base (3). The bottom end of the mounting base (3) is fixedly connected with a leveling assembly (8), the leveling assembly (8) comprises an electric lifting rod (81) fixedly connected to the lower end of the mounting base (3) and a second door-shaped frame (82) fixedly connected to the lower end of the electric lifting rod (81), the bottom of the second door-shaped frame (82) is movably connected with a leveling roller (83) between the side walls, the top of the second door-shaped frame (82) on the two sides of the electric lifting rod (81) is fixedly connected with a guide rod (84), the top of the guide rod (84) extends to above the top of the mounting base (3), and the top of the guide rod (84) is fixedly connected with a limiting plate, and a damping spring (85) is wound on the outer wall of the guide rod (84) between the bottom of the limiting plate and the top of the mounting base (3).

2. The mine soil heavy metal composite remediation and treatment integrated machine according to claim 1, characterized in that: The discharge port (54) is distributed around the outside of the driving shaft (5), and the discharge port (54) is arranged in the gap between the adjacent side plates of the spiral blade (53).

3. The mine soil heavy metal composite remediation and treatment integrated machine according to claim 1, characterized in that: The two ends of the first door-shaped frame (42) away from the tractor head (1) are fixedly connected with L-shaped hangers (421) on the outer walls, the bottom of the L-shaped hanger (421) is rotatably connected with a positioning rod (422) between the side walls, the outer wall of the positioning rod (422) is movably sleeved with positioning sleeves (423) at equal intervals, the bottom of the positioning sleeve (423) is fixedly connected with a stamping plate (424), two groups of the positioning sleeves (423) are fixedly connected to the top of the two ends of the stamping plate (424), respectively, a drive rod (425) is movably sleeved in the positioning sleeve (423) on the top of the stamping plate (424) away from the positioning rod (422), one end of the drive rod (425) is movably connected with a crank rocker (426), and the other end of the crank rocker (426) is fixedly connected to the outer wall of the end of the positioning shaft (43).

4. The mine soil heavy metal composite remediation and treatment integrated machine according to claim 3, characterized in that: The stamping plate (424) is suspended between the rotary tillage blade (44) and the spiral blade (53), and when the stamping plate (424) is horizontally suspended, the lower end surface of the stamping plate (424) is flush with the lower end surface of the spiral blade (53).

5. The mine soil heavy metal composite remediation and treatment integrated machine according to claim 1, characterized in that: The bottom of the mounting base (3) outside the soil scraping cutter head (4) is fixedly connected with a segmentation cutter group (7), the segmentation cutter group (7) comprises a second hydraulic rod (71) fixedly connected to the bottom of the end of the mounting base (3), the bottom of the second hydraulic rod (71) is fixedly connected with a reinforcing plate (72), the bottom of the reinforcing plate (72) is fixedly connected with a plurality of longitudinal segmentation blades (73) at equal intervals, and the longitudinal segmentation blades (73) are arranged in a staggered manner with the rotary tillage blade (44).

6. The mine soil heavy metal composite remediation and treatment integrated machine according to claim 1, characterized in that: The lower end of the leveling roller (83) extends to the outside of the bottom of the second door-shaped frame (82), when the damping spring (85) is in a normal relaxation state, the lower end surface of the leveling roller (83) is flush with the spiral blade (53), the outer wall of the second door-shaped frame (82) close to the spiral blade (53) is fixedly connected with a pressing rod (86), and the end of the pressing rod (86) is movably abutted on the top of the mounting disc (52) between the dispersion columns (55).

7. The mine soil heavy metal composite remediation and treatment integrated machine according to claim 6, characterized in that: The drive shaft (5) at the top of the mounting disc (52) is of telescopic structure, comprising an upper sleeve shaft (501) movably penetrating the mounting base (3) and a moving rod (502) movably sleeved in the bottom port of the upper sleeve shaft (501), the top of the moving rod (502) is fixedly connected with an elastic component (503) between the top plate of the inner cavity of the upper sleeve shaft (501), and the inner walls on the two sides of the inner cavity of the upper sleeve shaft (501) are respectively provided with a sliding groove, and the outer walls on the two sides of the moving rod (502) are provided with protrusions matched with the sliding grooves.

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