A device for bioremediation of contaminated soil

Abstract

The application relates to the field of soil remediation, and discloses a device for remediation of contaminated soil by microorganisms, which comprises a moving base, an electric control box, a conveying box and a pull rod fixedly arranged on the top of the moving base, a soil loosening device slidably arranged at the lower part of the moving base, and a spraying adjusting device slidably arranged in the soil loosening device; the height of the soil loosening limiting plate is adjusted by the lifting piece in the soil loosening device, the leveling wheel in the spraying adjusting device is rotated, and the first threaded rod is rotated, so that the fourth connecting plate can scrape off the microbial flora adhered to the surface of the spray head after the microbial flora is sprayed out of the spray head, the adhesion problem is prevented, the microbial flora can be added in the process of soil loosening by the soil loosening teeth, and the mixing degree and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soil remediation, more particularly, it relates to a device for microbial remediation of contaminated soil. BACKGROUND

[0002] Microbial remediation of contaminated soil is an efficient and environmentally friendly bioremediation technology. After soil contamination, specific microorganisms can be introduced or activated. They can decompose organic pollutants in the soil into harmless small molecules through biological degradation and transformation, or change the form of heavy metal pollutants to reduce their toxicity and bioavailability.

[0003] A patent application with publication number CN222710448U discloses a microbial mixing device for contaminated soil remediation, which comprises a main body structure; the main body structure comprises a support plate, 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 comprises first and second crushing rods and crushing arms, the first and second crushing rods are rotatably installed between the inner walls on both sides of the support plate, and the first and second crushing rods are both welded with crushing arms, and the first and second crushing rods are driven by a motor; a spraying mechanism; the spraying mechanism comprises 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 the bottom of the spraying pipe is provided with a plurality of groups of spray heads, which can repair large-area contaminated soil by cooperating with agricultural machinery, thereby reducing the workload of soil remediation and having high remediation efficiency and low remediation cost.

[0004] The above device can repair soil during use, but cannot fully spray soil during remediation. Spraying before and after soil crushing can cause uneven mixing of microbial flora and insufficient mixing of microbial flora in the soil layer. SUMMARY

[0005] The present application provides a device for microbial remediation of contaminated soil, which solves the technical problem of insufficient soil spraying during remediation in related technologies, uneven mixing of microbial flora, and insufficient mixing of microbial flora in the soil layer.

[0006] The application provides a device for repairing contaminated soil by microorganisms, which comprises a moving base, an electric control box, a conveying box and a pull rod which are fixedly arranged on the top of the moving base, a soil loosening device which is slidably arranged at the lower part of the moving base, and a spraying adjusting device which is slidably arranged in the soil loosening device; the soil loosening device comprises a lifting piece, a pressing piece, a soil loosening roller, soil loosening teeth and a soil loosening limiting plate, the lifting piece is movably arranged at the lower part of the moving base, the soil loosening limiting plate is movably arranged at the lower part of the lifting piece, the soil loosening roller is rotatably arranged at the lower part of the soil loosening limiting plate, a plurality of soil loosening teeth are fixedly arranged on the outer wall of the soil loosening roller, the pressing piece is arranged at the top of the soil loosening limiting plate and connected with the spraying adjusting device, and the pressing piece is used for spraying microbial groups on the soil loosened by the soil loosening teeth; the spraying adjusting device comprises a spraying frame and an extension piece, the spraying frame is slidably arranged in the soil loosening limiting plate, and the extension piece is arranged at the side of the spraying frame and used for spraying microbial groups on the soil loosened by the soil loosening teeth by adapting to the height of the spraying frame.

[0007] As a further optimization scheme of the application, the lifting piece comprises a first connecting plate which is fixedly arranged at the bottom of the moving base, a first rotating rod which is rotatably arranged on the first connecting plate, and a third connecting plate which is rotatably arranged inside the first rotating rod, the first rotating rod and the third connecting plate are arranged in a central rotational symmetry, a first rotating rod is also rotatably arranged on the third connecting plate, the first rotating rod on the third connecting plate is slidably arranged in the moving base, the first rotating rod and the third connecting plate are arranged in a central symmetry with respect to the moving base, and the bottom of the first rotating rod and the third connecting plate is connected with the soil loosening limiting plate.

[0008] As a further optimization scheme of the application, the upper parts of the two third connecting plates are rotatably arranged with a second connecting plate, a hydraulic rod is fixedly arranged at the side of the second connecting plate, a first fixed plate is fixedly arranged at the end of the hydraulic rod, and the top of the first fixed plate is fixedly connected with the bottom of the moving base.

[0009] As a further optimization scheme of the application, the pressing piece comprises a first fixed rod which is fixedly arranged at the top of the soil loosening limiting plate, a second fixed plate which is fixedly arranged at the top of the first fixed rod, a third fixed rod which is slidably arranged in the second fixed plate, a first limiting plate which is fixedly arranged at the bottom of the third fixed rod, a first spring which is fixedly arranged at the top of the first limiting plate, a fourth fixed rod which is fixedly arranged at the top of the third fixed rod, and the fourth fixed rod is connected with the spraying adjusting device.

[0010] As a further optimization scheme of the present application, the spraying adjusting device comprises a mounting protrusion arranged at the bottom of the spraying frame, an internal leveling wheel rotatably arranged in the mounting protrusion, a first threaded rod rotatably arranged in the spraying frame, a support rotatably arranged at the lower part of the spraying frame, a telescopic piece movably arranged at the side of the spraying frame, and a transmission piece arranged outside the spraying frame, wherein the leveling wheel drives the first threaded rod to rotate through the transmission piece, and the telescopic piece is cleaned.

[0011] As a further optimization scheme of the present application, the support comprises a fourth connecting plate rotatably arranged in the spraying frame, and a fifth connecting plate slidably arranged in the fourth connecting plate.

[0012] As a further optimization scheme of the present application, the telescopic piece comprises a plurality of spray heads slidably arranged in the fourth connecting plate, a lifting support fixedly arranged at the upper part of the spray head, a connecting pipe fixedly arranged at the top of the spray head, a second threaded rod threadedly arranged in the internal of the lifting support, a first telescopic rod fixedly arranged at the top of the second threaded rod, a first U-shaped block fixedly arranged at the top of the first telescopic rod, a second U-shaped block rotatably arranged in the internal of the first U-shaped block, a second telescopic rod fixedly arranged at the side of the second U-shaped block, and a gear fixedly arranged at the end of the second telescopic rod, wherein the gear is engaged with the first threaded rod.

[0013] As a further optimization scheme of the present application, the transmission piece comprises a first rotating ring fixedly arranged at the end of the leveling wheel, and a second rotating ring fixedly arranged at the end of the first threaded rod, wherein the outer wall of the first rotating ring and the second rotating ring is provided with a belt.

[0014] As a further optimization scheme of the present application, the lowest end of the leveling wheel is lower than the lowest end of the soil loosening roller.

[0015] As a further optimization scheme of the present application, a torsion spring is arranged at the connecting position between the fourth connecting plate and the spraying frame.

[0016] The present application has the following advantages:

[0017] The device for repairing contaminated soil by microorganisms can adjust the height of the soil loosening limiting plate by the lifting piece in the soil loosening device, and then the first threaded rod is rotated by the rotation of the leveling wheel in the spraying adjusting device, so that the fourth connecting plate can scrape off the microorganism groups adhered to the surface of the spray head after the spray head sprays the microorganism groups, thereby preventing the adhesion problem, and the microorganism groups can be added during the soil loosening process, thereby improving the mixing degree and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the schematic diagram of the overall device of the present application;

[0019] Figure 2 is the schematic diagram of the overall device installation of the present application;

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

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

[0022] Figure 5 is the schematic diagram of the internal structure of the spraying adjusting device of the present application;

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

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

[0025] In the figure:

[0026] 1, moving seat; 11, electric control box; 12, conveying box; 13, pull rod;

[0027] 2, soil loosening device; 21, lifting member; 211, first connecting plate; 212, first rotating rod; 213, first fixed plate; 214, hydraulic rod; 215, second connecting plate; 216, third connecting plate; 22, extrusion member; 221, first fixed rod; 222, second fixed plate; 223, third fixed rod; 224, first spring; 225, first limiting plate; 226, fourth fixed rod; 23, soil loosening roller; 24, soil loosening tooth; 25, soil loosening limiting plate;

[0028] 3, spraying adjusting 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, spray head; 342, connecting pipe; 343, lifting support; 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 DESCRIPTION

[0029] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the implementations discussed are merely for illustration and that the functionality and arrangement of the elements discussed can be changed without departing from the scope of the content of this specification. Various processes or components can be omitted, substituted, or added according to desired implementations. In addition, features described with respect to some examples can be combined in other examples.

[0030] As shown in Figures 1 to 6 The device for repairing contaminated soil by microorganisms comprises a moving base 1, an electric control box 11, a conveying box 12, and a pull rod 13 are fixedly installed on the top of the moving base 1, a soil loosening device 2 is slidably installed on the lower part of the moving base 1, and a spraying adjusting device 3 is slidably installed in the soil loosening device 2. The soil loosening device 2 comprises a lifting piece 21, an extrusion piece 22, a soil loosening roller 23, soil loosening teeth 24, and a soil loosening limiting plate 25. The lifting piece 21 is movably installed on the lower part of the moving base 1, the soil loosening limiting plate 25 is movably installed on the lower part of the lifting piece 21, the soil loosening roller 23 is rotatably installed on 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, the extrusion piece 22 is arranged on the top of the soil loosening limiting plate 25, and the extrusion piece 22 is connected with the spraying adjusting device 3, so as to spray microbial flora on the soil after the soil loosening teeth 24 loosen the soil. The spraying adjusting device 3 comprises a spraying frame 31 and an extension piece 34. The spraying frame 31 is slidably arranged in the soil loosening limiting plate 25, and the extension piece 34 is arranged on the side of the spraying frame 31, so as to adapt to the height of the lifting of the spraying frame 31 and spray microbial flora on the soil after the soil loosening teeth 24 loosen the soil.

[0031] It should be noted that when the soil needs to be loosened, the lifting piece 21 is started to move away from the moving base 1, so that the soil loosening limiting plate 25 is lowered, so that the soil loosening teeth 24 and the soil loosening roller 23 are in contact with the soil. The spraying frame 31 and the leveling wheel 35 are arranged in the soil loosening limiting plate 25, so that the spraying frame 31 and the leveling wheel 35 are lowered synchronously when the soil loosening limiting plate 25 is lowered. Then, the soil loosening roller 23 is driven to rotate by the motor, so as to drive the soil loosening teeth 24 to rotate and loosen the soil. The extension piece 34 is arranged on the side of the spraying frame 31, so that the microbial flora can be conveyed to the position of the extension piece 34 during the loosening process, so that the microbial flora is mixed when the soil loosening roller 23 and the soil loosening teeth 24 rotate to loosen the soil, the mixing efficiency is improved, and the problem of insufficient mixing is prevented. The lifting of the lifting piece 21 can adapt to different soil loosening conditions.

[0032] As shown in Figure 4As shown in the figure, the lifting piece 21 comprises a first connecting plate 211 fixedly installed at the bottom of the moving seat 1, a first rotating rod 212 rotatably installed on the first connecting plate 211, a third connecting plate 216 rotatably installed inside the first rotating rod 212, the first rotating rod 212 and the third connecting plate 216 are centrally rotationally symmetrical, a first rotating rod 212 rotatably installed 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, and the bottom of the first rotating rod 212 and the third connecting plate 216 is connected with the soil loosening limiting plate 25.

[0033] As shown in the figure, Figure 4 As shown in the figure, the upper part of the two third connecting plates 216 is rotatably installed with a second connecting plate 215, the side of the second connecting plate 215 is fixedly installed with a hydraulic rod 214, the end of the hydraulic rod 214 is fixedly installed with a first fixed plate 213, and the top of the first fixed plate 213 is fixedly connected with the bottom of the moving seat 1.

[0034] It should be noted that the hydraulic rod 214 extends to drive the second connecting plate 215 to move towards the direction close to the pull rod 13, so that the ends of the first rotating rod 212 and the third connecting plate 216 are away from each other, and the soil loosening limiting plate 25 rises, and vice versa. The second connecting plate 215 is retracted, which 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, thereby achieving the purpose of adjusting the soil loosening limiting plate 25.

[0035] As shown in the figure, Figure 4 As shown in the figure, the extrusion piece 22 comprises a first fixed rod 221 fixedly installed at the top of the soil loosening limiting plate 25, a second fixed plate 222 fixedly installed at the top of the first fixed rod 221, a third fixed rod 223 slidably installed inside the second fixed plate 222, a first limiting plate 225 fixedly installed at the bottom of the third fixed rod 223, a first spring 224 fixedly installed at the top of the first limiting plate 225, a fourth fixed rod 226 fixedly installed at the top of the third fixed rod 223, and the fourth fixed rod 226 is connected with the spraying adjusting device 3.

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

[0037] As shown in the figure, Figure 7As shown, the spray adjusting device 3 comprises a mounting protrusion 311 arranged at the bottom of the spray frame 31, an internal rotating installation of the leveling wheel 35 in the mounting protrusion 311, a rotating installation of the first threaded rod 32 in the spray frame 31, a rotating installation of the support 33 at the lower part of the spray frame 31, a movable installation of the telescopic piece 34 at the side of the spray frame 31, an external arrangement of the transmission piece 36 of the spray frame 31, and a rotation of the first threaded rod 32 driven by the transmission piece 36 through the leveling wheel 35, for cleaning the telescopic piece 34.

[0038] It should be noted that the rotation of the leveling wheel 35 drives the rotation of the transmission piece 36, the transmission piece 36 is connected with the first threaded rod 32, thereby driving the rotation of the first threaded rod 32, the first threaded rod 32 is connected with the telescopic piece 34, thereby driving the extension and contraction of the telescopic piece 34, and the inside of the telescopic piece 34 is provided with a pipeline to spray the microbial flora, and then the sprayed microbial flora is cleaned through the extension and contraction of the telescopic piece 34, to prevent the soil from adhering to the telescopic piece 34.

[0039] As shown in Figure 6 The support 33 comprises a fourth connecting plate 331 rotatingly installed in the inside of the spray frame 31, and a fifth connecting plate 332 slidingly installed in the inside of 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 rolling of the soil to a certain extent, so that the soil will not be stuck in the connecting position of the spray frame 31 and the soil loosening limiting plate 25 when rolling, thereby improving the safety.

[0041] As shown in Figure 7 The telescopic piece 34 comprises a plurality of spray heads 341 slidingly installed in the inside of the fourth connecting plate 331, a lifting bracket 343 fixedly installed at the upper part of the spray head 341, a connecting pipe 342 fixedly installed at the top of the spray head 341, a second threaded rod 344 threadedly installed in the inside of the lifting bracket 343, a first telescopic rod 345 fixedly installed at the top of the second threaded rod 344, a first U-shaped block 346 fixedly installed at the top of the first telescopic rod 345, a second U-shaped block 347 rotatingly installed in the inside of the first U-shaped block 346, a second telescopic rod 348 fixedly installed at the side of the second U-shaped block 347, a gear 349 fixedly installed at the end of the second telescopic rod 348, and the gear 349 is engaged 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 and the second U-shaped block 347 and the first U-shaped block 346, and the rotation of the first U-shaped block 346 drives the rotation of the first telescopic rod 345 and the second threaded rod 344, and in the process of rotation, the telescopic use of the first telescopic rod 345 and the second telescopic rod 348 can drive the rotation of the second threaded rod 344, and the rotation of the second threaded rod 344 can drive the lifting of the lifting support 343 and the nozzle 341, so as to drive the sliding of the nozzle 341 in the inside of the fourth connecting plate 331, realize the cleaning work of the surface of the nozzle 341, prevent adhesion, and realize the mixing effect of the microbial flora by conveying the microbial flora to the connecting pipe 342 and spraying from the nozzle 341.

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

[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 shown in Figure 3 , 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 soil loosening teeth 24 can always be in contact with the ground during the rotation of the soil loosening.

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

[0048] It should be noted that the torsional spring is arranged at the connecting 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 of approaching the soil loosening teeth 24 when the spraying frame 31 is lifted.

[0049] The above describes the embodiments of the present embodiment, but the present embodiment is not limited to the specific embodiments described above, and the specific embodiments described above are only illustrative but not limiting, and those skilled in the art can make many forms under the inspiration of the present embodiment, which all belong to the protection of the present embodiment.

Claims

1. A device for microbial remediation of contaminated soil, comprising a movable base (1), characterized in that: The top of the mobile seat (1) is fixedly equipped with an electrical control box (11), a transport box (12), and a pull rod (13). The lower part of the mobile seat (1) is slidably equipped with a soil loosening device (2). The inside of the soil loosening device (2) is slidably equipped with a spraying adjustment device (3). The soil loosening device (2) includes a lifting component (21), an extrusion component (22), a soil loosening roller (23), soil loosening teeth (24), and a soil loosening limiting plate (25). The lifting component (21) is movably installed on the lower part of the movable seat (1). The soil loosening limiting plate (25) is movably installed on the lower part of the lifting component (21). The soil loosening roller (23) is rotatably installed on the lower part of the soil loosening limiting plate (25). Several soil loosening teeth (24) are fixedly installed on the outer wall of the soil loosening roller (23). The extrusion component (22) is provided on the top of the soil loosening limiting plate (25). The extrusion component (22) is connected to the spraying adjustment device (3). The spraying adjustment device (3) includes a spraying frame (31) and a telescopic component (34). The spraying frame (31) slides inside the loosening soil limiting plate (25), and the telescopic component (34) is movably installed on the side of the spraying frame (31). The spray adjustment device (3) includes a mounting protrusion (311) at the bottom of the spray frame (31), a leveling wheel (35) is rotatably mounted inside the mounting protrusion (311), a first threaded rod (32) is rotatably mounted inside the spray frame (31), a support member (33) is rotatably mounted at the lower part of the spray frame (31), and a transmission member (36) is provided outside the spray frame (31). The leveling wheel (35) drives the first threaded rod (32) to rotate through the transmission member (36). The support member (33) includes a fourth connecting plate (331) rotatably installed inside the spray frame (31), and a fifth connecting plate (332) is slidably installed inside the fourth connecting plate (331). The telescopic component (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 nozzles (341). A connecting pipe (342) is fixedly mounted on the top of the nozzles (341). A second threaded rod (344) is threaded 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 U-shaped block (346). 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).

2. The microbial remediation device for contaminated soil according to claim 1, characterized in that: The lifting component (21) includes a first connecting plate (211) fixedly installed at the bottom of the movable seat (1), a first rotating rod (212) rotatably installed on the first connecting plate (211), a third connecting plate (216) rotatably installed inside the first rotating rod (212), the first rotating rod (212) and the third connecting plate (216) are symmetrically arranged about the center of the movable seat (1), and the bottom of the first rotating rod (212) and the third connecting plate (216) are connected to the loosening limit plate (25).

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

4. The microbial remediation device for contaminated soil according to claim 3, characterized in that: The extrusion component (22) includes a first fixing rod (221) fixedly installed on the top of the loosening limiting plate (25), a second fixing plate (222) fixedly installed on the top of the first fixing rod (221), a third fixing rod (223) slidably installed inside the second fixing plate (222), a first limiting plate (225) fixedly installed at the bottom of the third fixing rod (223), a first spring (224) fixedly installed on the top of the first limiting plate (225), and a fourth fixing rod (226) fixedly installed on the top of the third fixing rod (223). The fourth fixing rod (226) is connected to the spraying adjustment device (3).

5. The microbial remediation device for contaminated soil according to claim 1, characterized in that: The transmission component (36) includes a first rotating ring (361) fixedly installed at the end of the leveling wheel (35), a second rotating ring (362) fixedly installed at the end of the first threaded rod (32), and a belt (363) provided on the outer wall of the first rotating ring (361) and the second rotating ring (362).

6. The microbial remediation device for contaminated soil according to claim 5, characterized in that: The bottom of the leveling roller (35) is lower than the bottom of the loosening roller (23).

7. The microbial remediation device for contaminated soil according to claim 6, characterized in that: A torsion spring is provided at the connection position between the fourth connecting plate (331) and the spray frame (31).

Images