Land pollution remediation device

Abstract

The invention relates to the technical field of soil remediation, and particularly discloses a land pollution remediation device which comprises a machine shell, a fixing rod is installed in the machine shell, a plurality of hole distribution assemblies are installed on the fixing rod, and a rotating first rotating shaft and a rotating second rotating shaft are installed in the machine shell. The fixing rod is located between the first rotating shaft and the rotating second rotating shaft, a rotating disc is fixed to the position, corresponding to each hole distribution assembly, of the first rotating shaft, a plurality of protrusions are arranged on the edge of each rotating disc, a plurality of smashing cutters are installed on the second rotating shaft, a supporting plate is arranged below the smashing cutters, the supporting plate is fixed to the machine shell, and the fixing rod is fixed to the machine shell. According to the land pollution remediation device, the influence of a complex land structure or an uneven soil layer on pesticide liquid distribution is reduced, pesticide liquid in the soil layer permeates uniformly, and the land pollution remediation effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil remediation, and in particular to a land pollution remediation device. Background Art

[0002] Mining, traffic pollution, industrial production, agricultural planting, animal husbandry, etc. can cause soil pollution. Pollutants (such as heavy metals and pesticides) will inhibit the activity of soil microorganisms. Crops may die after absorbing pollutants or pollutants may be transmitted through the food chain, thereby threatening animal and human health. In order to cope with soil pollution, many soil remediation technologies have emerged, among which spraying liquid soil remediation technology is a common soil remediation technology.

[0003] Spraying the liquid medicine allows it to penetrate into the soil. The liquid medicine treats pollutants in the soil through physical, chemical or biological processes. When soil remediation is carried out on a large area of ​​polluted areas, the polluted area can be repaired in a short time, which can effectively reduce the cost of land pollution remediation and achieve a higher land pollution remediation efficiency.

[0004] However, when the soil structure is more complex (different permeability, different water content, different soil density, etc.) or the soil layer is uneven, the uneven distribution of the solution can easily lead to poor remediation effects, and even cause the failure to effectively remove pollutants in local areas, affecting the overall remediation effect. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a land pollution remediation device to reduce the impact of complex soil structure or uneven soil layer on the distribution of liquid medicine, so that the liquid medicine in the soil layer can penetrate evenly and improve the effect of land pollution remediation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a land pollution remediation device, comprising a casing, a fixing rod is installed in the casing, a plurality of hole distribution components are installed on the fixing rod, a first rotating shaft and a second rotating shaft are installed in the casing, the fixing rod is located between the first rotating shaft and the second rotating shaft, a turntable is fixed on the first rotating shaft corresponding to the position of each hole distribution component, a plurality of protrusions are provided on the edge of each turntable, a plurality of crushing knives are installed on the second rotating shaft, a support plate is provided under the crushing knife, the support plate is fixed on the casing, and a water distribution component is installed on the bottom side of the support plate.

[0007] The hole-laying assembly includes a support rod and a first elastic member, the support rod having a first mounting end and a second mounting end, the middle portion of the support rod being rotatably connected to a fixed rod, the first mounting end of the support rod being arranged close to a turntable, the second mounting end of the support rod being fixed with a cannula, and the support rod and the casing being fixedly connected to the two ends of the first elastic member respectively.

[0008] Among them, the water distribution component sprays liquid medicine onto the soil layer, the first rotating shaft and the second rotating shaft are driven to rotate by an external power device, the hole distribution component pokes deep holes in the soil layer and brings out the soil in the deep holes. The soil brought out by the hole distribution component falls on the support plate, and the soil on the support plate is crushed by the rotating crushing knife.

[0009] As a preferred technical solution of the present invention, the second mounting end of the support rod and the insert tube are connected by a fixing assembly, and the fixing assembly includes a mounting seat fixed to the second mounting end of the support rod, an arc-shaped groove is provided on the vertical side surface of the mounting seat, the arc-shaped groove is in contact with the outer side of the insert tube, the outer side of the insert tube is fixedly connected to one end of the insert rod, the other end of the insert rod passes through the mounting seat and extends outside the mounting seat, a fixing block is fixed to a position of the insert rod away from the mounting seat, and a third elastic member is installed between the fixing block and the mounting seat.

[0010] As a preferred technical solution of the present invention, the second mounting end of the support rod and the insert tube are connected by a fixing component, and the fixing component includes a mounting seat fixed to the second mounting end of the support rod, an arc-shaped groove is provided on the vertical side of the mounting seat, a sliding sleeve is installed outside the insert tube, the arc-shaped groove is in contact with the outer side of the sleeve, the outer side of the sleeve is fixedly connected to one end of the insert rod, the other end of the insert rod passes through the mounting seat and extends outside the mounting seat, a fixing block is fixed at a position of the insert rod away from the mounting seat, a third elastic member is installed between the fixing block and the mounting seat, the top end of the insert tube and the outer side of the mounting seat are connected by a second elastic member, a limiting member is fixed to the outer side of the insert tube, and the limiting member is located above the sleeve.

[0011] As a preferred technical solution of the present invention, an opening is opened on the outside of the insert tube, an insertion block is fixed inside the insert tube, the bottom end of the insertion block is arc-shaped, and the upper half of the opening coincides with the bottom end of the insertion block.

[0012] As a preferred technical solution of the present invention, an opening is provided on the outer side of the cannula, and the top end of the cannula is closed.

[0013] As a preferred technical solution of the present invention, the support plate is provided with a groove at a position corresponding to the crushing knife.

[0014] As a preferred technical solution of the present invention, a rotatable wheel is installed at the first mounting end of the support rod, and the rotation axis of the wheel is parallel to the rotation axis of the first rotating shaft.

[0015] As a preferred technical solution of the present invention, the bottom end of the cannula is blade-shaped.

[0016] As a preferred technical solution of the present invention, after the insert pipe is inserted into the soil layer, the angle between the insert pipe and the soil layer is less than 90°.

[0017] As a preferred technical solution of the present invention, the water distribution assembly includes a conduit installed below the support plate, and a plurality of spray holes are opened on the conduit.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The land pollution remediation device exemplified by the present invention, on the one hand, the insertion tube pokes a deep hole in the soil layer, the medicine liquid on the surface of the soil layer flows into the deep hole poke by the insertion tube, the medicine liquid in the deep hole penetrates into the soil, so that the medicine liquid in the soil layer penetrates evenly, and the soil brought out by the insertion tube is crushed by the crushing knife, and the crushed soil is spread on the surface of the soil layer. The spread crushed soil absorbs the medicine liquid on the surface of the soil layer to treat the pollutants in the crushed soil, and the spread crushed soil blocks the deep hole to reduce the evaporation of the medicine liquid in the deep hole; on the other hand, when the external traction vehicle drives the land pollution The repair device moves too fast, the tube is inserted into the soil layer, the tube fits the arc groove and rotates, the tube rotates in the soil layer, avoiding damage to the tube; on the other hand, when the bottom end of the tube hits the stone in the soil layer during the process of inserting the tube into the soil layer, the support rod drives the sleeve to continue to move downward, the stretching length of the second elastic member increases, and the second elastic member drives the sleeve to fit the arc groove and rotate through the tube, the angle between the tube and the soil layer changes, the volume of the deep hole at the stone is increased, and the volume of the liquid medicine in each deep hole is small, thereby ensuring the reliability of the land pollution repair device.

[0019] 2. In the land pollution remediation device of the present invention, an opening is provided on the outer side of the insert tube, an insertion block is fixed inside the insert tube, the soil in the insert tube moves upward inside the insert tube and hits the insertion block, and the soil in the insert tube is separated from the insert tube from the opening under the guidance of the arc-shaped bottom end of the insertion block, so that the soil in the insert tube is completely emptied. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a main view schematic diagram of the present invention; Figure 2 It is a bottom view structural schematic diagram of the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 4 for Figure 3 A schematic diagram of the structure at A; Figure 5 It is a structural schematic diagram of an embodiment of a hole arrangement component of the present invention; Figure 6 for Figure 5 Another perspective structural diagram of; Figure 7 for Figure 6 A schematic diagram of the structure at B; Figure 8 It is a schematic diagram of the cannula structure of the present invention; Fig. 9 It is a schematic structural diagram of another embodiment of the hole arrangement component of the present invention.

[0021] In the figure: 1 turntable, 2 first rotating shaft, 3 housing, 4 fixing rod, 5 hole distribution assembly, 501 rotating wheel, 502 supporting rod, 503 first elastic member, 504 second elastic member, 505 inserting tube, 506 mounting seat, 507 arc groove, 508 sleeve, 509 opening, 510 third elastic member, 511 inserting rod, 512 fixing block, 513 inserting block, 6 supporting plate, 7 conduit, 8 crushing knife, 9 second rotating shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Embodiment 1: See also Figure 1-9 The present embodiment discloses a land pollution remediation device, including a casing 3, a fixing rod 4 is fixedly installed in the casing 3, a plurality of hole distribution components 5 are installed on the fixing rod 4, a rotating first rotating shaft 2 and a rotating second rotating shaft 9 are installed in the casing 3, the fixing rod 4 is located between the first rotating shaft 2 and the rotating second rotating shaft 9, a rotating disk 1 is fixed at the position of each hole distribution component 5 of the first rotating shaft 2, and a plurality of protrusions are provided on the edge of each rotating disk, a plurality of crushing knives 8 are installed on the second rotating shaft 9, a support plate 6 is provided below the crushing knife 8, the support plate 6 is fixed on the casing 3, and a water distribution component is installed on the bottom side of the support plate 6.

[0024] The hole distribution assembly 5 includes a support rod 502 and a first elastic member 503. The support rod 502 has a first mounting end and a second mounting end. The middle part of the support rod 502 and the fixed rod 4 are connected by a hinge, a bearing or a hinge seat. The first mounting end of the support rod 502 is arranged close to the turntable 1. The second mounting end of the support rod 502 is fixed with a cannula 505. The support rod 502 and the housing 3 are fixedly connected to the two ends of the first elastic member 503 respectively.

[0025] The water distribution component sprays liquid medicine onto the soil layer, the first rotating shaft 2 and the second rotating shaft 9 are driven to rotate by an external power device, the hole distribution component 5 pokes deep holes in the soil layer and brings out the soil in the deep holes, and the soil brought out by the hole distribution component 5 falls on the support plate 6, and the soil on the support plate 6 is crushed by the rotating crushing knife 8.

[0026] Furthermore, the land pollution remediation device is installed on an external traction vehicle.

[0027] Furthermore, the external power device includes a gearbox and a belt-pulley transmission assembly, and the power of the traction vehicle is transmitted to the first rotating shaft 2 and the second rotating shaft 9 through the gearbox and the belt-pulley transmission assembly; or the external power device is a motor, and the electric energy of the traction vehicle is transmitted to the motor, and the motor drives the first rotating shaft 2 and the second rotating shaft 9 to rotate.

[0028] The working process and principle of this embodiment are: The external traction vehicle drives the soil pollution remediation device to move, and the first rotating shaft 2 and the second rotating shaft 9 are driven to rotate by the external power equipment. The first rotating shaft 2 drives the turntable 1 to rotate. After the protrusion of the turntable 1 contacts the first mounting end of the support rod 502, the protrusion of the turntable 1 pushes the first mounting end of the support rod 502 to rotate upward, and the first elastic member 503 accumulates elastic potential energy. The second mounting end of the support rod 502 drives the insertion tube 505 to be inserted into the soil, and the protrusion of the turntable 1 and the first mounting end of the support rod 502 are separated from each other. After the touch, the first elastic member 503 drives the insert tube 505 to separate from the soil through the support rod 502, and the insert tube 505 pokes a deep hole in the soil layer. When the insert tube 505 moves to the highest point, the soil in the insert tube 505 continues to move upward under the action of its own inertia and separates from the insert tube 505, and the soil in the insert tube 505 falls on the support plate 6. The second rotating shaft 9 drives the crushing knife 8 to crush the soil on the support plate 6. The external liquid medicine container supplies liquid medicine for soil remediation to the water distribution component, and the water distribution component sprays the liquid medicine onto the soil layer.

[0029] The medicine liquid on the surface of the soil layer flows into the deep hole pierced by the insert tube 505, and the medicine liquid in the deep hole penetrates into the soil, so that the medicine liquid in the soil layer penetrates evenly, and the soil brought out by the insert tube 505 is crushed by the crushing knife 8, and the crushed soil is spread flat on the surface of the soil layer. The spread crushed soil absorbs the medicine liquid on the surface of the soil layer to treat the pollutants in the crushed soil, and the spread crushed soil blocks the deep hole to reduce the evaporation of the medicine liquid in the deep hole.

[0030] The density of the soil on the inner wall of the deep hole is similar to that of the soil near the deep hole, so that the rate at which the liquid medicine in the deep hole penetrates into the soil in all directions is similar.

[0031] Furthermore, the thickness of the broken soil on the soil layer can be adjusted by adjusting the rotation speed of the first rotating shaft 2, the moving speed of the land pollution remediation device or the distance between two adjacent hole-laying components, and the residence time of the tube 505 in the soil layer can be achieved by adjusting the size of the turntable 1 and the size of the protrusion on the turntable 1.

[0032] Furthermore, after the insert pipe 505 is inserted into the soil layer, the angle between the insert pipe 505 and the soil layer is less than 90°. The smaller the angle between the insert pipe 505 and the soil layer, the better the shielding effect of the broken soil on the deep hole.

[0033] Furthermore, a rotatable wheel 501 is mounted on the first mounting end of the support rod 502 via a mounting frame, and the rotation axis of the wheel 501 is parallel to the rotation axis of the first rotating shaft 2 , thereby reducing the wear rate of the turntable 1 .

[0034] Furthermore, the bottom end of the inserting tube 505 is blade-shaped, which reduces the resistance of the inserting tube 505 into the soil layer.

[0035] When the soil in the insert tube 505 is clogged, the insert tube 505 is inserted into the soil layer again, and the soil entering the insert tube 505 pushes out the soil clogged in the insert tube 505 .

[0036] Furthermore, the first elastic member 503 is a spring, an elastic rod or a spring damper.

[0037] Furthermore, the water distribution assembly includes a water distribution pipe, the inner cavity of the water distribution pipe is connected to the external liquid medicine container, and the water distribution pipe sprays the liquid medicine onto the soil layer.

[0038] Embodiment 2: like Fig. 9 As shown, the present embodiment discloses a land pollution remediation device, and its structure is substantially the same as that of the first embodiment, except that, in the present embodiment, the second mounting end of the support rod 502 and the insert tube 505 are connected by a fixing assembly, and the fixing assembly comprises a mounting seat 506 fixed to the second mounting end of the support rod 502, and an arc-shaped groove 507 is provided on the vertical side surface of the mounting seat 506, and the arc-shaped groove 507 fits the outer side of the insert tube 505, and the outer side of the insert tube 505 is fixedly connected to one end of the insert rod 511, and the other end of the insert rod 511 passes through the mounting seat 506 and extends to the outside of the mounting seat 506, and a fixing block 512 is fixed to the position of the insert rod 511 away from the mounting seat 506, and a third elastic member 510 is installed between the fixing block 512 and the mounting seat 506, and the third elastic member 510, the fixing block 512 and the insert rod 511 cooperate to make the insert tube 505 attached to the arc-shaped groove 507.

[0039] The working process and principle of this embodiment are: When the external traction vehicle drives the land pollution remediation device to move too fast, the insert tube 505 is inserted into the soil layer, the insert tube 505 rotates in accordance with the arc groove 507, and the length of the third elastic member 510 becomes shorter, and the insert tube 505 rotates in the soil layer to avoid damage to the insert tube 505.

[0040] Furthermore, the third elastic member 510 is a spring or a spring damper.

[0041] Embodiment three: like Figure 5 , Figure 6 , Figure 7As shown, this embodiment discloses a land pollution remediation device, and its structure is roughly the same as that of the first embodiment, except that the second mounting end of the support rod 502 and the insertion tube 505 are connected by a fixing assembly, and the fixing assembly includes a mounting seat 506 fixed to the second mounting end of the support rod 502, and an arc-shaped groove 507 is provided on the vertical side of the mounting seat 506. A sliding sleeve 508 is installed outside the insertion tube 505, and the arc-shaped groove 507 fits the outer side of the sleeve 508, and the outer side of the sleeve 508 and the insertion rod 505 are in contact with each other. One end of the insertion rod 511 is fixedly connected, and the other end of the insertion rod 511 passes through the mounting seat 506 and extends to the outside of the mounting seat 506. A fixing block 512 is fixed to the position of the insertion rod 511 away from the mounting seat 506, and a third elastic member 510 is installed between the fixing block 512 and the mounting seat 506. The top of the insertion tube 505 and the outer side of the mounting seat 506 are connected by the second elastic member 504. A limiting member is fixed to the outer side of the insertion tube 505, and the limiting member is located above the sleeve 508. The second elastic member 504 makes the limiting member rest on the sleeve 508.

[0042] The working process and principle of this embodiment are: When the external traction vehicle drives the land pollution remediation device to move too fast, the insert tube 505 is inserted into the soil layer, the sleeve 508 rotates in accordance with the arc groove 507, and the length of the third elastic member 510 becomes shorter, and the insert tube 505 rotates in the soil layer to avoid damage to the insert tube 505.

[0043] When the insert tube 505 is inserted into the soil layer, the bottom end of the insert tube 505 hits a stone in the soil layer, and the support rod 502 drives the sleeve 508 to continue to move downward, the stretching length of the second elastic member 504 increases, and the second elastic member 504 drives the sleeve 508 to rotate in accordance with the arc groove 507 through the insert tube 505. The angle between the insert tube 505 and the soil layer changes, thereby increasing the volume of the deep hole at the stone, making the difference in the volume of the drug solution in each deep hole small, thereby ensuring the reliability of the land pollution remediation device.

[0044] Further, the second elastic member 504 is a spring, an elastic band or a spring shock absorber, and the third elastic member 510 is a spring or a spring shock absorber.

[0045] Embodiment 4: like Figure 8 As shown, this embodiment discloses a land pollution remediation device, and its structure is roughly the same as that of the first embodiment, except that an opening 509 is provided on the outside of the insert tube 505 away from the support rod 502, and an insertion block 513 is fixed inside the insert tube 505, the bottom end of the insertion block 513 is arc-shaped, and the upper half of the opening 509 coincides with the bottom end of the insertion block 513.

[0046] The working process and principle of this embodiment are: After the insert tube 505 is separated from the soil layer, the soil in the insert tube 505 moves upward in the insert tube 505 and hits the insertion block 513. The soil in the insert tube 505 is separated from the insert tube 505 from the opening 509 under the guidance of the arc-shaped bottom end of the insertion block 513, and the soil in the insert tube 505 falls on the support plate 6.

[0047] Furthermore, after the inserting tube 505 is separated from the soil layer, the first elastic member 503 causes the top end of the inserting tube 505 to collide with the casing 3, so that the soil in the inserting tube 505 is completely separated.

[0048] Embodiment five: like Figure 4 and Figure 5 As shown, this embodiment discloses a land pollution remediation device, and its structure is substantially the same as that of the first embodiment, except that an opening 509 is provided on the outer side of the insert tube 505 of this embodiment, and the top end of the insert tube 505 is closed.

[0049] The working process and principle of this embodiment are: After the insert tube 505 is separated from the soil layer, the first elastic member 503 causes the top end of the insert tube 505 to hit the casing 3. If the soil in the insert tube 505 blocks the inner cavity of the insert tube 505 and is higher than the space at the opening 509, the soil in the insert tube 505 is separated from the insert tube 505 through the opening 509, so that the soil in the insert tube 505 falls on the support plate 6, so that the soil in the insert tube 505 is completely separated.

[0050] Furthermore, after the insert tube 505 is separated from the soil layer, the soil in the insert tube 505 is subjected to a centrifugal force in a direction away from the support rod 502 , causing the soil in the insert tube 505 to separate from the opening 509 .

[0051] Embodiment six: like Figure 3 As shown, this embodiment discloses a land pollution remediation device, and its structure is roughly the same as that of the first embodiment, except that a groove is provided at the position of the support plate 6 corresponding to the crushing knife 8 in this embodiment, and the groove increases the contact time between the crushing knife 8 and the soil, thereby improving the degree of soil crushing.

[0052] Embodiment seven: like Figure 2 As shown, this embodiment discloses a land pollution remediation device, and its structure is roughly the same as that of the first embodiment, except that the water distribution assembly of this embodiment includes a conduit 7 installed under the support plate 6, and a plurality of spray holes are opened on the conduit 7. The inner cavity of the conduit 7 is connected to the external liquid medicine container, and the conduit 7 sprays the liquid medicine onto the soil layer through the spray holes.

[0053] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A land pollution remediation device, characterized in that: The invention comprises a casing (3), a fixing rod (4) being installed in the casing (3), a plurality of hole-distributing assemblies (5) being installed on the fixing rod (4), a first rotating shaft (2) and a second rotating shaft (9) being installed in the casing (3), the fixing rod (4) being located between the first rotating shaft (2) and the second rotating shaft (9), a rotating disk (1) being fixed at a position corresponding to each hole-distributing assembly (5) on the first rotating shaft (2), a plurality of protrusions being provided on the edge of each rotating disk, a plurality of crushing knives (8) being installed on the second rotating shaft (9), a support plate (6) being provided below the crushing knives (8), the support plate (6) being fixed on the casing (3), and a water-distributing assembly being installed on the bottom side of the support plate (6); The hole arrangement assembly (5) comprises a support rod (502) and a first elastic member (503), the support rod (502) having a first mounting end and a second mounting end, the middle portion of the support rod (502) being rotatably connected to a fixed rod (4), the first mounting end of the support rod (502) being arranged close to the rotating disk (1), the second mounting end of the support rod (502) being fixed with an insertion tube (505), and the support rod (502) and the housing (3) being fixedly connected to two ends of the first elastic member (503) respectively; The water distribution component sprays liquid medicine onto the soil layer, the first rotating shaft (2) and the second rotating shaft (9) are both driven to rotate by an external power device, the hole distribution component (5) pokes deep holes in the soil layer and brings out the soil in the deep holes, the soil brought out by the hole distribution component (5) falls on the support plate (6), and the soil on the support plate (6) is crushed by the rotating crushing knife (8).

2. The land pollution remediation device according to claim 1 is characterized in that: The second mounting end of the support rod (502) and the insertion tube (505) are connected via a fixing assembly, wherein the fixing assembly comprises a mounting seat (506) fixed to the second mounting end of the support rod (502), an arc-shaped groove (507) is provided on the vertical side surface of the mounting seat (506), the arc-shaped groove (507) is fitted with the outer side of the insertion tube (505), the outer side of the insertion tube (505) is fixedly connected to one end of the insertion rod (511), the other end of the insertion rod (511) passes through the mounting seat (506) and extends outside the mounting seat (506), a fixing block (512) is fixed to the position of the insertion rod (511) away from the mounting seat (506), and a third elastic member (510) is installed between the fixing block (512) and the mounting seat (506).

3. The soil pollution remediation device according to claim 1 is characterized in that: The second mounting end of the support rod (502) and the insertion tube (505) are connected via a fixing assembly, wherein the fixing assembly comprises a mounting seat (506) fixed to the second mounting end of the support rod (502), an arc-shaped groove (507) being provided on the vertical side surface of the mounting seat (506), a sliding sleeve (508) being installed outside the insertion tube (505), the arc-shaped groove (507) being fitted with the outer side of the sleeve (508), the outer side of the sleeve (508) being fixedly connected to one end of the insertion rod (511), and the insertion rod The other end of (511) passes through the mounting seat (506) and extends outside the mounting seat (506); a fixing block (512) is fixed at a position of the insertion rod (511) away from the mounting seat (506); a third elastic member (510) is installed between the fixing block (512) and the mounting seat (506); the top of the insertion tube (505) and the outer side of the mounting seat (506) are connected via a second elastic member (504); a limiting member is fixed to the outer side of the insertion tube (505); and the limiting member is located above the sleeve (508).

4. The land pollution remediation device according to claim 1 is characterized in that: An opening (509) is provided on the outside of the insert tube (505), an insertion block (513) is fixed inside the insert tube (505), the bottom end of the insertion block (513) is arc-shaped, and the upper half of the opening (509) and the bottom end of the insertion block (513) overlap.

5. The land pollution remediation device according to claim 1 is characterized in that: An opening (509) is provided on the outer side of the cannula (505), and the top end of the cannula (505) is sealed.

6. The soil pollution remediation device according to claim 1, characterized in that: The support plate (6) is provided with a groove at a position corresponding to the crushing knife (8).

7. The soil pollution remediation device according to claim 1, characterized in that: A rotatable rotating wheel (501) is mounted on the first mounting end of the support rod (502), and the rotating axis of the rotating wheel (501) is parallel to the rotating axis of the first rotating shaft (2).

8. The soil pollution remediation device according to claim 1, characterized in that: The bottom end of the cannula (505) is blade-shaped.

9. The soil pollution remediation device according to claim 1, characterized in that: in, After the insert pipe (505) is inserted into the soil layer, the angle between the insert pipe (505) and the soil layer is less than 90°.

10. The soil pollution remediation device according to claim 1, characterized in that: The water distribution assembly comprises a conduit (7) installed below the support plate (6), and a plurality of spray holes are provided on the conduit (7).

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