Device for repairing polluted soil by microorganisms

Abstract

The invention relates to the field of soil remediation, and discloses a microbial contaminated soil remediation device which comprises a moving seat, an electric control box, a conveying box and a pull rod are fixedly mounted at the top of the moving seat, a soil loosening device is slidably mounted on the lower portion of the moving seat, and a spraying adjusting device is slidably mounted in the soil loosening device; a lifting part in the soil loosening device stretches out and draws back to drive a soil loosening limiting plate to ascend and descend, so that the height of the soil loosening limiting plate is adjusted, then a leveling wheel in the spraying adjusting device rotates to drive a first threaded rod to rotate, and after a spray head sprays out microbial flora, the soil loosening limiting plate can be lifted up and down. And a fourth connecting plate can scrape microbial florae adhered to the surface of the spray head, the adhesion problem is prevented, the microbial florae can be added in the soil loosening process of the soil loosening teeth, and the mixing degree and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of soil remediation, and more specifically, it relates to a device for microbial remediation of contaminated soil. Background Art

[0002] Microbial remediation of contaminated soil is an efficient and environmentally friendly bioremediation technology. After the soil is contaminated, specific microorganisms can be introduced or activated. Through biodegradation, transformation and other effects, they decompose the organic pollutants in the soil into harmless small molecules, or change the forms of pollutants such as heavy metals, reducing their toxicity and bioavailability.

[0003] A patent application with the publication number CN222710448U discloses a device for mixing microorganisms for contaminated soil remediation, including a main structure; the main structure includes a support plate, and a connecting frame for connecting agricultural machinery is arranged on one side of the top of the support plate; a crushing mechanism; the crushing mechanism includes a first crushing rod, a second crushing rod and crushing arms. The first crushing rod and the second crushing rod are both rotatably installed between the inner walls on both sides of the support plate, and crushing arms are welded on both the first crushing rod and the second crushing rod. The first crushing rod and the second crushing rod are both driven by motors; a spraying mechanism; the spraying mechanism includes a storage tank for storing microbial solution, a pump body and a spraying pipe. The storage tank is arranged on the top of the support plate, and multiple groups of nozzles are arranged at the bottom of the spraying pipe. By cooperating with agricultural machinery, large-area contaminated soil can be remediated, which not only reduces the workload of soil remediation, but also has a high remediation efficiency and a low remediation cost.

[0004] During the use of the above device, although the soil can be remediated, it is impossible to fully spray the soil during the remediation process. Spraying before and after soil crushing will lead to the problems of uneven mixing of microbial flora and insufficient mixing of the soil inside the soil layer and the microbial flora. Summary of the Invention

[0005] The present invention provides a device for microbial remediation of contaminated soil, which solves the technical problem that in the related technology, it is impossible to fully spray the soil during the remediation process, and spraying before and after soil crushing will lead to the problems of uneven mixing of microbial flora and insufficient mixing of the soil inside the soil layer and the microbial flora.

[0006] The present invention provides a device for microbial remediation of contaminated soil, which includes a moving seat. An electric control box, a transport box, and a pull rod are fixedly installed on the top of the moving seat. A soil loosening device is slidably installed at the lower part of the moving seat, and a spraying adjustment device is slidably installed inside the soil loosening device. The soil loosening device includes a lifting member, a pressing member, a soil loosening roller, soil loosening teeth, and a soil loosening limiting plate. The lifting member is movably installed at the lower part of the moving seat. A soil loosening limiting plate is movably installed at the lower part of the lifting member. A soil loosening roller is rotatably installed at the lower part of the soil loosening limiting plate. A plurality of soil loosening teeth are fixedly installed on the outer wall of the soil loosening roller. A pressing member is arranged at the top of the soil loosening limiting plate. The pressing member is connected to the spraying adjustment device and is used to spray microbial flora on the soil after the soil loosening teeth loosen the soil. The spraying adjustment device includes a spraying frame and a telescopic member. The spraying frame slides inside the soil loosening limiting plate. A telescopic member is arranged at the side of the spraying frame. The telescopic member is used to adapt to the height of the lifting of the spraying frame and spray microbial flora on the soil after the soil loosening teeth loosen the soil.

[0007] As a further optimized solution of the present invention, the lifting member includes a first connecting plate fixedly installed at the bottom of the moving seat. A first rotating rod is rotatably installed on the first connecting plate. A third connecting plate is rotatably installed inside the first rotating rod. The first rotating rod and the third connecting plate are rotationally symmetrically arranged at the center. A first rotating rod is also rotatably installed on the third connecting plate. The first rotating rod on the third connecting plate slides inside the moving seat. The first rotating rod and the third connecting plate are symmetrically arranged about the center of the moving seat. The bottoms of the first rotating rod and the third connecting plate are connected to the soil loosening limiting plate.

[0008] As a further optimized solution of the present invention, a second connecting plate is rotatably installed at the upper parts of the two third connecting plates. A hydraulic rod is fixedly installed at the side of the second connecting plate. A first fixing plate is fixedly installed at the end of the hydraulic rod. The top of the first fixing plate is fixedly connected to the bottom of the moving seat.

[0009] As a further optimized solution of the present invention, the pressing member includes a first fixing rod fixedly installed at the top of the soil loosening limiting plate. A second fixing plate is fixedly installed at the top of the first fixing rod. A third fixing rod is slidably installed inside the second fixing plate. A first limiting plate is fixedly installed at the bottom of the third fixing rod. A first spring is fixedly installed at the top of the first limiting plate. A fourth fixing rod is fixedly installed at the top of the third fixing rod. The fourth fixing rod is connected to the spraying adjustment device.

[0010] As a further optimized solution of the present invention, the spraying adjustment device includes a mounting protrusion provided at the bottom of the spraying frame. A leveling wheel is rotatably installed inside the mounting protrusion. A first threaded rod is rotatably installed inside the spraying frame. A support member is rotatably installed at the lower part of the spraying frame. A telescopic member is movably installed at the side of the spraying frame. A transmission member is provided outside the spraying frame. The leveling wheel drives the first threaded rod to rotate through the transmission member for cleaning the telescopic member.

[0011] As a further optimized solution of the present invention, the support member includes a fourth connecting plate rotatably installed inside the spraying frame, and a fifth connecting plate is slidably installed inside the fourth connecting plate.

[0012] As a further optimized solution of the present invention, the telescopic member includes a plurality of nozzles slidably installed inside the fourth connecting plate. A lifting bracket is fixedly installed at the upper part of the nozzle. A connecting pipe is fixedly installed at the top of the nozzle. A second threaded rod is threadedly installed inside the lifting bracket. A first telescopic rod is fixedly installed at the top of the second threaded rod. A first U-shaped block is fixedly installed at the top of the first telescopic rod. A second U-shaped block is rotatably installed inside the first U-shaped block. A second telescopic rod is fixedly installed at the side of the second U-shaped block. A gear is fixedly installed at the end of the second telescopic rod, and the gear meshes with the first threaded rod.

[0013] As a further optimized solution of the present invention, the transmission member includes a first rotating ring fixedly installed at the end of the leveling wheel, a second rotating ring is fixedly installed at the end of the first threaded rod, and a belt is provided on the outer walls of the first rotating ring and the second rotating ring.

[0014] As a further optimized solution of the present invention, the lowest end of the leveling wheel is lower than the lowest end of the soil loosening roller.

[0015] As a further optimized solution of the present invention, a torsion spring is provided at the connection position between the fourth connecting plate and the spraying frame.

[0016] The beneficial effects of the present invention are as follows:

[0017] For the device for repairing contaminated soil by microorganisms of the present invention, the lifting and lowering of the soil loosening limiting plate is driven by the telescopic movement of the lifting member inside the soil loosening device, so as to realize the problem of adjusting the height of the soil loosening limiting plate. Then, the rotation of the leveling wheel inside the spraying adjustment device drives the rotation of the first threaded rod. After the microbial flora is sprayed out by the nozzle, the fourth connecting plate can scrape off the microbial flora adhered to the surface of the nozzle to prevent adhesion problems. The microbial flora can be added during the process of the soil loosening teeth loosening the soil, improving the mixing degree and efficiency. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall device shape of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation of the overall device of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of the overall device of the present invention;

[0021] Figure 4 It is a schematic diagram of the internal structure of the soil loosening device of the present invention;

[0022] Figure 5 It is a schematic diagram of the internal structure of the spraying adjustment device of the present invention;

[0023] Figure 6 It is a schematic diagram of the internal structure of the transmission member of the present invention;

[0024] Figure 7 It is a schematic diagram of the internal structure of the telescopic member of the present invention.

[0025] In the figure:

[0026] 1. Moving seat; 11. Electric control box; 12. Transport box; 13. Pull rod;

[0027] 2. Soil loosening device; 21. Lifting member; 211. First connecting plate; 212. First rotating rod; 213. First fixing plate; 214. Hydraulic rod; 215. Second connecting plate; 216. Third connecting plate; 22. Extrusion member; 221. First fixing rod; 222. Second fixing plate; 223. Third fixing rod; 224. First spring; 225. First limiting plate; 226. Fourth fixing rod; 23. Soil loosening roller; 24. Soil loosening teeth; 25. Soil loosening limiting plate;

[0028] 3. Spraying adjustment device; 31. Spraying frame; 311. Installation protrusion; 32. First threaded rod; 33. Support member; 331. Fourth connecting plate; 332. Fifth connecting plate; 34. Telescopic member; 341. Nozzle; 342. Connecting pipe; 343. Lifting bracket; 344. Second threaded rod; 345. First telescopic rod; 346. First U-shaped block; 347. Second U-shaped block; 348. Second telescopic rod; 349. Gear; 35. Leveling wheel; 36. Transmission member; 361. First rotating ring; 362. Second rotating ring; 363. Belt. Detailed implementation method

[0029] Reference will now be made to exemplary embodiments to discuss the subject matter described herein. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described relative to some examples can also be combined in other examples.

[0030] As Figures 1 to 6 shown, a device for microbial remediation of contaminated soil according to an embodiment of the present invention includes a moving seat 1. An electric control box 11, a transport box 12, and a pull rod 13 are fixedly installed on the top of the moving seat 1. A soil loosening device 2 is slidably installed at the lower part of the moving seat 1, and a spraying adjustment device 3 is slidably installed inside the soil loosening device 2; the soil loosening device 2 includes a lifting member 21, a pressing member 22, a soil loosening roller 23, soil loosening teeth 24, and a soil loosening limiting plate 25. The lifting member 21 is movably installed at the lower part of the moving seat 1. A soil loosening limiting plate 25 is movably installed at the lower part of the lifting member 21. A soil loosening roller 23 is rotatably installed at the lower part of the soil loosening limiting plate 25. A plurality of soil loosening teeth 24 are fixedly installed on the outer wall of the soil loosening roller 23. A pressing member 22 is arranged at the top of the soil loosening limiting plate 25. The pressing member 22 is connected to the spraying adjustment device 3 and is used to spray microbial flora on the soil after the soil is loosened by the soil loosening teeth 24; the spraying adjustment device 3 includes a spraying frame 31 and a telescopic member 34. The spraying frame 31 slides inside the soil loosening limiting plate 25. A telescopic member 34 is arranged at the side of the spraying frame 31. The telescopic member 34 is used to adapt to the height of the lifting of the spraying frame 31 and spray microbial flora on the soil after the soil is loosened by the soil loosening teeth 24.

[0031] It should be noted that when the soil needs to be loosened, the lifting member 21 is started to move away from the moving seat 1, so that the soil loosening limiting plate 25 is lowered, making the soil loosening teeth 24 and the soil loosening roller 23 contact the soil. There is a spraying frame 31 and a leveling wheel 35 inside the soil loosening limiting plate 25. When the soil loosening limiting plate 25 is lowered, the spraying frame 31 and the leveling wheel 35 are lowered synchronously. Then, the motor drives the soil loosening roller 23 to rotate, which can drive the soil loosening teeth 24 to rotate to loosen the soil. There is a telescopic member 34 at the side of the spraying frame 31. Therefore, during the soil loosening process, the microbial flora can be transported to the position of the telescopic member 34, so that the microbial flora can be mixed when the soil loosening roller 23 and the soil loosening teeth 24 rotate to loosen the soil, improving the mixing efficiency and preventing the problem of insufficient mixing. The lifting and lowering of the lifting member 21 can adapt to different soil loosening conditions.

[0032] As Figure 4As shown, the lifting member 21 includes a first connecting plate 211 fixedly installed at the bottom of the moving seat 1. A first rotating rod 212 is rotatably installed on the first connecting plate 211. A third connecting plate 216 is rotatably installed inside the first rotating rod 212. The first rotating rod 212 and the third connecting plate 216 are rotationally symmetrically arranged about the center. The third connecting plate 216 is also rotatably installed with a first rotating rod 212. The first rotating rod 212 on the third connecting plate 216 slides inside the moving seat 1. The first rotating rod 212 and the third connecting plate 216 are symmetrically arranged about the center of the moving seat 1. The bottoms of the first rotating rod 212 and the third connecting plate 216 are connected to the soil loosening limiting plate 25.

[0033] As Figure 4 shown, the upper parts of the two third connecting plates 216 are rotatably installed with a second connecting plate 215. A hydraulic rod 214 is fixedly installed on the side of the second connecting plate 215. A first fixing plate 213 is fixedly installed at the end of the hydraulic rod 214. The top of the first fixing plate 213 is fixedly connected to the bottom of the moving seat 1.

[0034] It should be noted that when the hydraulic rod 214 extends, it drives the second connecting plate 215 to move towards the direction close to the pull rod 13. Therefore, the ends of the first rotating rod 212 and the third connecting plate 216 move away from each other, and then the soil loosening limiting plate 25 rises. On the contrary, when the second connecting plate 215 contracts, it can drive the two ends of the first rotating rod 212 and the third connecting plate 216 to approach each other, thereby driving the soil loosening limiting plate 25 to descend, so as to achieve the purpose of adjusting the soil loosening limiting plate 25.

[0035] As Figure 4 shown, the squeezing member 22 includes a first fixing rod 221 fixedly installed at the top of the soil loosening limiting plate 25. A second fixing plate 222 is fixedly installed at the top of the first fixing rod 221. A third fixing rod 223 is slidably installed inside the second fixing plate 222. A first limiting plate 225 is fixedly installed at the bottom of the third fixing rod 223. A first spring 224 is fixedly installed at the top of the first limiting plate 225. A fourth fixing rod 226 is fixedly installed at the top of the third fixing rod 223. The fourth fixing rod 226 is connected to the spraying adjusting device 3.

[0036] It should be noted that under the action of the first spring 224, the fourth fixing rod 226 is connected to the spraying adjusting device 3, so that the spraying adjusting device 3 is always subjected to a downward moving force, so that the spraying adjusting device 3 contacts the ground after soil loosening, thereby integrating the soil and improving the flatness and mixing degree.

[0037] As Figure 7As shown, the spraying adjustment device 3 includes a mounting projection 311 provided at the bottom of the spraying frame 31. A leveling wheel 35 is rotatably mounted inside the mounting projection 311. A first threaded rod 32 is rotatably mounted inside the spraying frame 31. A support member 33 is rotatably mounted at the lower part of the spraying frame 31. A telescopic member 34 is movably mounted at the side of the spraying frame 31. A transmission member 36 is provided outside the spraying frame 31. The leveling wheel 35 drives the first threaded rod 32 to rotate through the transmission member 36 for cleaning the telescopic member 34.

[0038] It should be noted that the rotation of the leveling wheel 35 drives the rotation of the transmission member 36. The transmission member 36 is connected to the first threaded rod 32, thereby driving the first threaded rod 32 to rotate. The first threaded rod 32 is connected to the telescopic member 34, thereby driving the telescopic member 34 to expand and contract. A pipeline is provided inside the telescopic member 34 to spray the microbial flora. Then, the telescopic member 34 expands and contracts to clean the sprayed microbial flora, preventing soil from adhering to the telescopic member 34.

[0039] As Figure 6 shown, the support member 33 includes a fourth connecting plate 331 rotatably mounted inside the spraying frame 31. A fifth connecting plate 332 is slidably mounted inside the fourth connecting plate 331.

[0040] It should be noted that the fourth connecting plate 331 and the fifth connecting plate 332 can block the degree of soil tumbling, so that the soil will not get stuck at the connection position between the spraying frame 31 and the soil loosening limit plate 25 during tumbling, improving safety.

[0041] As Figure 7 shown, the telescopic member 34 includes a plurality of nozzles 341 slidably mounted inside the fourth connecting plate 331. A lifting bracket 343 is fixedly mounted on the upper part of the nozzle 341. A connecting pipe 342 is fixedly mounted on the top of the nozzle 341. A second threaded rod 344 is threadedly mounted inside the lifting bracket 343. A first telescopic rod 345 is fixedly mounted on the top of the second threaded rod 344. A first U-shaped block 346 is fixedly mounted on the top of the first telescopic rod 345. A second U-shaped block 347 is rotatably mounted inside the first U-shaped block 346. A second telescopic rod 348 is fixedly mounted on the side of the second U-shaped block 347. A gear 349 is fixedly mounted on the end of the second telescopic rod 348. The gear 349 meshes with the first threaded rod 32.

[0042] It should be noted that the rotation of the first threaded rod 32 drives the rotation of the gear 349, and the rotation of the gear 349 drives the rotation of the second telescopic rod 348, the second U-shaped block 347, and the first U-shaped block 346. The rotation of the first U-shaped block 346 drives the rotation of the first telescopic rod 345 and the second threaded rod 344. During the rotation, the telescopic movements of the first telescopic rod 345 and the second telescopic rod 348 can use the angle of rotation of the fourth connecting plate 331 to drive the rotation of the second threaded rod 344. The rotation of the second threaded rod 344 can drive the lifting bracket 343 and the nozzle 341 to lift, thereby driving the nozzle 341 to slide inside the fourth connecting plate 331, realizing the cleaning work on the surface of the nozzle 341 to prevent adhesion. The microbial flora is transported to the connecting pipe 342 through the conveyor and sprayed out from the nozzle 341, thus achieving the mixing effect of the microbial flora.

[0043] As Figure 6 shown, the transmission member 36 includes a first rotating ring 361 fixedly installed at the end of the leveling wheel 35. A second rotating ring 362 is fixedly installed at the end of the first threaded rod 32. A belt 363 is provided on the outer walls of the first rotating ring 361 and the second rotating ring 362.

[0044] It should be noted that the rotation of the leveling wheel 35 drives the rotation of the first rotating ring 361, and the rotation of the first rotating ring 361 drives the rotation of the second rotating ring 362 through the belt 363, thereby driving the rotation of the first threaded rod 32.

[0045] As Figure 3 shown, the lowest end of the leveling wheel 35 is lower than the lowest end of the soil loosening roller 23.

[0046] It should be noted that the lowest end of the leveling wheel 35 is lower than the lowest end of the soil loosening roller 23, so that the leveling wheel 35 can always be in contact with the ground when the soil loosening teeth 24 rotate to loosen the soil.

[0047] As Figure 6 shown, a torsion spring is provided at the connection position between the fourth connecting plate 331 and the spraying frame 31.

[0048] It should be noted that a torsion spring is provided at the connection position between the fourth connecting plate 331 and the spraying frame 31, so that the end of the fifth connecting plate 332 always has a tendency to rotate and approach the spraying frame 31, thereby preventing the end of the fifth connecting plate 332 from rotating in the direction close to the soil loosening teeth 24 when the spraying frame 31 lifts and lowers.

[0049] The above describes the embodiments of this embodiment, but this embodiment is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A device for remediating contaminated soil with microorganisms, comprising a mobile seat (1), characterized in that: An electric control box (11), a transport box (12), and a pull rod (13) are fixedly installed on the top of the movable seat (1); a soil loosening device (2) is slidably installed on the lower part of the movable seat (1); and a spraying adjustment device (3) is slidably installed inside the soil loosening device (2); The loosening device (2) comprises a lifting member (21), an extrusion member (22), a loosening roller (23), loosening teeth (24), and a loosening limit plate (25); the lifting member (21) is movably mounted on the lower part of the movable seat (1); a loosening limit plate (25) is movably mounted on the lower part of the lifting member (21); a loosening roller (23) is rotatably mounted on the lower part of the loosening limit plate (25); a plurality of loosening teeth (24) are fixedly mounted on the outer wall of the loosening roller (23); an extrusion member (22) is arranged on the top of the loosening limit plate (25); the extrusion member (22) is connected to the spraying regulating device (3) and is used for spraying microbial flora on the soil after loosening the soil with the loosening teeth (24); The spraying adjustment device (3) comprises a spraying frame (31) and a telescopic member (34). The spraying frame (31) slides inside a loosening limit plate (25). A telescopic member (34) is provided on the side of the spraying frame (31). The telescopic member (34) is used to adapt to the height of the spraying frame (31) when it is raised or lowered, and to spray microbial flora on the soil after the loosening teeth (24) loosen the soil.

2. The device for remediating contaminated soil with microorganisms according to claim 1, characterized in that: The lifting member (21) comprises a first connecting plate (211) fixedly mounted on the bottom of the moving seat (1); a first rotating rod (212) is rotatably mounted on the first connecting plate (211); a third connecting plate (216) is rotatably mounted inside the first rotating rod (212); the first rotating rod (212) and the third connecting plate (216) are rotationally symmetrically arranged about the center; the first rotating rod (212) is also rotatably mounted on the third connecting plate (216); the first rotating rod (212) on the third connecting plate (216) slides inside the moving seat (1); the first rotating rod (212) and the third connecting plate (216) are symmetrically arranged about the center of the moving seat (1); the bottoms of the first rotating rod (212) and the third connecting plate (216) are connected to the loosening limit plate (25).

3. A microbial remediation device for contaminated soil according to claim 2, characterized in that: A second connecting plate (215) is rotatably mounted on the upper part of the two third connecting plates (216); a hydraulic rod (214) is fixedly mounted on the side of the second connecting plate (215); a first fixed plate (213) is fixedly mounted on the end of the hydraulic rod (214); and the top of the first fixed plate (213) is fixedly connected to the bottom of the movable seat (1).

4. The device for remediating contaminated soil with microorganisms according to claim 3, characterized in that: The extrusion member (22) comprises a first fixing rod (221) fixedly mounted on the top of a loosening limiting plate (25); a second fixing plate (222) is fixedly mounted on the top of the first fixing rod (221); a third fixing rod (223) is slidably mounted inside the second fixing plate (222); a first limiting plate (225) is fixedly mounted on the bottom of the third fixing rod (223); a first spring (224) is fixedly mounted on the top of the first limiting plate (225); a fourth fixing rod (226) is fixedly mounted on the top of the third fixing rod (223); and the fourth fixing rod (226) is connected to the spraying adjustment device (3).

5. The device for remediating contaminated soil with microorganisms according to claim 4, characterized in that: The spraying adjustment device (3) comprises a mounting protrusion (311) arranged at the bottom of the spraying frame (31), a leveling wheel (35) is rotatably mounted inside the mounting protrusion (311), a first threaded rod (32) is rotatably mounted inside the spraying frame (31), a supporting member (33) is rotatably mounted at the lower part of the spraying frame (31), a telescopic member (34) is movably mounted at the side of the spraying frame (31), a transmission member (36) is arranged outside the spraying frame (31), and the leveling wheel (35) drives the first threaded rod (32) to rotate through the transmission member (36) so as to clean the telescopic member (34).

6. The device for remediating contaminated soil with microorganisms according to claim 5, characterized in that: The support member (33) comprises a fourth connecting plate (331) rotatably mounted inside the spray frame (31), and a fifth connecting plate (332) is slidably mounted inside the fourth connecting plate (331).

7. The device for remediating contaminated soil with microorganisms according to claim 6, characterized in that: The telescopic member (34) comprises a plurality of nozzles (341) slidably mounted inside the fourth connecting plate (331); a lifting bracket (343) is fixedly mounted on the upper portion of the nozzle (341); a connecting pipe (342) is fixedly mounted on the top of the nozzle (341); a second threaded rod (344) is threadedly mounted inside the lifting bracket (343); a first telescopic rod (345) is fixedly mounted on the top of the second threaded rod (344); a first U-shaped block (346) is fixedly mounted on the top of the first telescopic rod (345); a second U-shaped block (347) is rotatably mounted inside the first U-shaped block (346); a second telescopic rod (348) is fixedly mounted on the side of the second U-shaped block (347); a gear (349) is fixedly mounted on the end of the second telescopic rod (348); and the gear (349) is meshed with the first threaded rod (32).

8. The device for remediating contaminated soil with microorganisms according to claim 7, characterized in that: The transmission member (36) comprises a first rotating ring (361) fixedly mounted on the end of the leveling wheel (35); a second rotating ring (362) is fixedly mounted on the end of the first threaded rod (32); and belts (363) are provided on the outer walls of the first rotating ring (361) and the second rotating ring (362).

9. The device for remediating contaminated soil with microorganisms according to claim 8, characterized in that: The bottom end of the leveling wheel (35) is lower than the bottom end of the loosening roller (23).

10. The device for remediating contaminated soil with microorganisms according to claim 9, characterized in that: A torsion spring is provided at the connection position between the fourth connecting plate (331) and the spraying frame (31).

Images