A soil in-situ remediation device based on microbial fuel cell

Abstract

The application discloses a kind of based on microbial fuel cell's soil in-situ remediation device, it is related to soil remediation technical field.The base and bottom plate are included, the top of bottom plate is equipped with two groups of spray head, the top of bottom plate is equipped with adjusting assembly, adjusting assembly includes two rotating rods, the top of bottom plate is equipped with first motor, first motor is used to drive two rotating rods rotation, in turn, the irrigation angle of two groups of spray head is adjusted, the range size of different soil pollution area can be flexibly adapted by adjusting assembly, avoid the problem that the edge area irrigation is insufficient or non-pollution area is excessively sprayed due to angle fixed, and the structure of gear and gear ring meshing, connecting block and slide rod linkage can realize two groups of spray head synchronous adjustment, guarantee two sides spray angle consistency, improve irrigation uniformity, can irrigate repair liquid to target area, to improve microbial activity and pollutant degradation efficiency, reduce resource waste and environmental risk.

Description

Technical Field

[0001] This invention relates to the field of soil remediation equipment technology, and specifically to a soil in-situ remediation device based on a microbial fuel cell. Background Technology

[0002] In-situ soil remediation refers to soil remediation technology that does not move the contaminated soil but directly remediates or treats it at the site where the contamination occurred. It is characterized by low investment and minimal impact on the surrounding environment.

[0003] A search revealed that patent number CN222175368U discloses an in-situ bioremediation device for organically contaminated soil, belonging to the field of soil remediation technology. This in-situ bioremediation device for organically contaminated soil, through the cooperation of a drive mechanism, housing, moving parts, and support rod, enables the distribution pipe to drive the nozzles in reciprocating motion, thereby reducing irrigation dead zones and making irrigation of contaminated land more uniform, which is beneficial to improving the remediation effect.

[0004] While the aforementioned patent reduces the dead zones in the sprinkler head, the spray angle of the sprinkler head is fixed, making it difficult to adjust the spray range according to the extent of soil remediation. When the remediation area is larger than the coverage area of ​​the fixed spray angle, insufficient watering may occur in the edge areas, affecting the overall uniformity of remediation. If the remediation area is smaller than the coverage area of ​​the spray angle, the remediation liquid may be over-sprayed into non-contaminated areas, resulting in resource waste and potential environmental risks. Summary of the Invention

[0005] The main objective of this invention is to provide a soil in-situ remediation device based on microbial fuel cells to overcome the problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A soil in-situ remediation device based on microbial fuel cells includes a base and a bottom plate. The top of the bottom plate is provided with two sets of nozzles and an adjustment component.

[0008] The adjustment assembly includes two rotating rods, and a first motor is provided on the top of the base plate. The first motor is used to drive the two rotating rods to rotate, thereby adjusting the watering angle of the two sets of nozzles.

[0009] Furthermore, both rotating rods are rotatably connected to the top of the base plate, and a fixed frame is fixedly installed on the top of the base plate. A disc is rotatably connected inside the fixed frame, and a protective cover is provided on the top of the base plate.

[0010] Furthermore, the first motor is fixedly installed on one side of the fixed frame, and a gear is fixedly connected to the outer wall of the output end of the first motor after passing through one side of the fixed frame. A gear ring is fixedly connected to the outer wall of the disc, and the gear meshes with the gear ring.

[0011] Furthermore, connecting blocks are fixedly connected to both sides of the disc, each connecting block is L-shaped, and connecting seats are fixedly connected to both ends of the outer wall of each rotating rod. A fixed pipe is fixedly connected between two connecting seats, and each group of nozzles is connected to the corresponding fixed pipe. The number of nozzles in each group is set to multiple.

[0012] Furthermore, each rotating rod has two connecting rods fixedly connected to its outer wall, and a fixed rod is fixedly connected between each pair of connecting rods. Each fixed rod has a slider slidably connected to its outer wall, and a sliding rod is fixedly connected to one side of each slider. Each sliding rod is slidably connected to one end of the corresponding connecting block.

[0013] The above technical solution allows for flexible adaptation to different soil pollution areas by adjusting the components, avoiding problems such as insufficient irrigation in edge areas or excessive spraying in non-polluted areas due to fixed angles.

[0014] Furthermore, a limiting groove is provided at the bottom of the base plate, and the limiting groove is slidably connected to the top of the base. One end of each fixed tube is connected to a corrugated pipe.

[0015] Furthermore, a second motor is fixedly installed on one side of the base, and a reciprocating screw is rotatably connected to one side of the base. The output end of the second motor passes through one side of the base and is fixedly connected to one end of the reciprocating screw. A moving block is threaded onto the outer wall of the reciprocating screw, and a pull rod is fixedly connected to one side of the moving block. The pull rod is fixedly connected to one side of the bottom of the base plate.

[0016] The above technical solution allows for a significant expansion of the spray coverage of the repair fluid by oscillating the two sets of nozzles.

[0017] Furthermore, a fixed box is fixedly installed on the top of the base plate, and the interior of the fixed box contains a microbial fuel cell.

[0018] Through the above technical solution, the microbial fuel cell can utilize the electricity generated by the degradation process of organic pollutants in the soil to power the device, achieving energy self-sufficiency, reducing dependence on external power, and lowering operating costs.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention can flexibly adapt to the size of different soil pollution areas by adjusting the components, avoiding the problems of insufficient irrigation in the edge areas or excessive spraying in the non-polluted areas due to fixed angles. Moreover, the structure of gear and gear ring meshing and connecting block and slide rod linkage can realize the synchronous adjustment of two sets of nozzles, ensuring the consistency of the spraying angle on both sides, improving irrigation uniformity, and enabling the remediation solution to be poured into the target area, thereby improving the activity of microorganisms and the degradation efficiency of pollutants, reducing resource waste and environmental risks.

[0021] This invention can significantly expand the spray coverage of the remediation solution by swinging two sets of nozzles. Through the reciprocating motion of the base plate, the nozzles can add a lateral movement trajectory on the basis of the original angle adjustment, so that the remediation solution can not only cover the fixed area, but also extend to the edge of the gap between adjacent nozzles. This effectively eliminates the irrigation dead zone caused by the fixed position or angle limitation of the nozzles. At the same time, the relative position of the nozzles and the soil changes continuously during the swinging process, which allows the remediation solution to penetrate into the contaminated soil at different depths and ranges more evenly, avoiding the impact of insufficient spraying on microbial activity in local areas, or the waste of remediation solution due to excessive accumulation.

[0022] This invention utilizes the electrical energy generated during the degradation of organic pollutants in soil through a microbial fuel cell to power the device, achieving energy self-sufficiency, reducing dependence on external power, and lowering operating costs. At the same time, the reaction process of the fuel cell synergizes with the activity of microorganisms in soil remediation, further promoting pollutant degradation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the top structure of the base plate of the present invention.

[0025] Figure 3 This is a bottom view of the overall structure of the present invention.

[0026] Figure 4 This is a schematic diagram of the reciprocating lead screw connection structure of the present invention.

[0027] Figure 5 This is a schematic diagram of the overall connection structure of the rotating rod according to the present invention.

[0028] Figure 6 This is a schematic diagram of the overall connection structure of the disk according to the present invention.

[0029] Figure 7 This is a schematic diagram of the overall structure of the connecting block of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 2. Base plate; 3. Limiting groove; 4. First motor; 5. Gear; 6. Fixing frame; 7. Disc; 8. Gear ring; 9. Connecting block; 10. Rotating rod; 11. Connecting seat; 12. Fixing pipe; 13. Nozzle; 14. Connecting rod; 15. Fixing rod; 16. Sliding block; 17. Sliding rod; 18. Bellows; 19. Second motor; 20. Reciprocating lead screw; 21. Moving block; 22. Pull rod; 23. Protective cover; 24. Fixing box. Detailed Implementation

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Combination Figures 1 to 7 This embodiment provides a soil in-situ remediation device based on microbial fuel cells, including a base 1 and a bottom plate 2. The top of the bottom plate 2 is provided with two sets of nozzles 13 and an adjustment component.

[0033] The adjustment assembly includes two rotating rods 10, and a first motor 4 is provided on the top of the base plate 2. The first motor 4 is used to drive the two rotating rods 10 to rotate, thereby adjusting the watering angle of the two sets of nozzles 13.

[0034] Reference Figures 1-7 Both rotating rods 10 are rotatably connected to the top of the base plate 2. A fixing frame 6 is fixedly installed on the top of the base plate 2. A disc 7 is rotatably connected inside the fixing frame 6. A protective cover 23 is provided on the top of the base plate 2. The first motor 4 is fixedly installed on one side of the fixing frame 6. A gear 5 is fixedly connected to the outer wall of the output end of the first motor 4 after passing through one side of the fixing frame 6. A gear ring 8 is fixedly connected to the outer wall of the disc 7. The gear 5 meshes with the gear ring 8. Connecting blocks 9 are fixedly connected to both sides of the disc 7. Each connecting block 9 is L-shaped. The outer wall of each rotating rod 10 Both ends are fixedly connected to a connecting seat 11, and a fixed pipe 12 is fixedly connected between the two connecting seats 11. Each group of nozzles 13 is connected to the corresponding fixed pipe 12. The number of nozzles 13 in each group is set to multiple. Two connecting rods 14 are fixedly connected to the outer wall of each rotating rod 10. A fixed rod 15 is fixedly connected between each two connecting rods 14. A slider 16 is slidably connected to the outer wall of each fixed rod 15. A sliding rod 17 is fixedly connected to one side of each slider 16. Each sliding rod 17 is slidably connected to one end of the corresponding connecting block 9.

[0035] The watering angle of the two sets of nozzles 13 can be adjusted by adjusting the components. Specifically, after starting the first motor 4, its output end drives the gear 5 to rotate. Since the gear 5 meshes with the gear ring 8 on the outer wall of the disc 7, the gear 5 will drive the disc 7 to rotate synchronously within the fixed frame 6. When the disc 7 rotates, the L-shaped connecting blocks 9 on both sides of it move in a circular motion with the disc 7. One end of each connecting block 9 is slidably connected to the corresponding slide rod 17. Therefore, the connecting block 9 will push or pull the slider 16 on the fixed rod 15 through the slide rod 17. When the slider 16 slides, it will drive the connecting rod 14 and the rotating rod 10 connected to it to rotate around the rotation fulcrum at the top of the base plate 2. During the rotation of the rotating rod 10, the fixed pipe 12 fixed to its outer wall connecting seat 11 and the connected nozzle 13 will deflect synchronously, thereby realizing the synchronous adjustment of the watering angle of the two sets of nozzles 13. By adjusting the rotation amplitude of the disc 7, and then through the linkage of the transmission components such as the connecting block 9, the sliding rod 17, and the slider 16, the watering angle of the nozzle 13 can be flexibly changed to adapt to the needs of different soil remediation ranges.

[0036] The adjustable components can flexibly adapt to the size of different soil contamination areas, avoiding insufficient irrigation of edge areas or excessive spraying of non-contaminated areas due to fixed angles. Furthermore, the structure of gear 5 meshing with gear ring 8 and connecting block 9 linking with slide rod 17 can achieve synchronous adjustment of two sets of nozzles 13, ensuring consistent spraying angles on both sides, improving irrigation uniformity, and enabling the remediation solution to be poured into the target area, thereby improving microbial activity and pollutant degradation efficiency, reducing resource waste and environmental risks.

[0037] Reference Figure 1 and Figure 4 The bottom of the base plate 2 is provided with a limiting groove 3, which is slidably connected to the top of the base 1. One end of each fixed tube 12 is connected to a corrugated pipe 18. A second motor 19 is fixedly installed on one side of the base 1. A reciprocating screw 20 is rotatably connected to one side of the base 1. The output end of the second motor 19 passes through one side of the base 1 and is fixedly connected to one end of the reciprocating screw 20. A moving block 21 is threadedly fitted to the outer wall of the reciprocating screw 20. A pull rod 22 is fixedly connected to one side of the moving block 21. The pull rod 22 is fixedly connected to one side of the bottom of the base plate 2.

[0038] By using the second motor 19 and the reciprocating lead screw 20, the two sets of nozzles 13 can be oscillating, thereby reducing the occurrence of dead zones during watering. Specifically, the second motor 19 is started first, and its output will drive the reciprocating lead screw 20 to rotate synchronously on one side of the base 1. Since the outer wall of the reciprocating lead screw 20 is threaded into the moving block 21, and the moving block 21 is limited by the base 1 and cannot rotate with the lead screw, the moving block 21 will reciprocate linearly along the axis of the reciprocating lead screw 20. When the base plate 2 moves synchronously, the pull rod 22 fixed on one side drives the base plate 2 to move synchronously. The limiting groove 3 at the bottom of the base plate 2 is slidably connected to the top of the base 1, which provides a stable guide for the base plate 2 and ensures that it moves smoothly back and forth along a straight line. In this way, the reciprocating motion of the base plate 2 drives the two sets of nozzles 13 to swing back and forth along a straight line. Combined with the adjustable watering angle of the nozzles 13, it can fully cover more areas, effectively reduce the dead corners that are easy to occur when spraying in a fixed position, and make the remediation liquid act more evenly on the contaminated soil, thus improving the remediation effect.

[0039] The corrugated pipe 18 connected to one end of the fixed pipe 12 has good flexibility and can freely expand, contract or bend with the movement of the base plate 2, avoiding pipe breakage due to reciprocating motion of the base plate 2, and ensuring continuous and stable delivery of repair fluid to the nozzle 13.

[0040] The oscillation of the two sets of nozzles 13 can significantly expand the spray coverage of the remediation solution. Through the reciprocating motion of the base plate 2, the nozzles 13 can add a lateral movement trajectory on the basis of the original angle adjustment, so that the remediation solution can not only cover the fixed area, but also extend to the edge of the gap between adjacent nozzles 13, effectively eliminating the irrigation dead zone caused by the fixed position or angle limitation of the nozzles 13. At the same time, the relative position of the nozzles 13 and the soil changes continuously during the oscillation process, which allows the remediation solution to penetrate into the contaminated soil at different depths and ranges more evenly, avoiding the impact of insufficient spraying on microbial activity in local areas, or the waste of remediation solution due to excessive accumulation.

[0041] Reference Figure 1 A fixed box 24 is fixedly installed on the top of the base plate 2, and a microbial fuel cell is installed inside the fixed box 24.

[0042] Microbial fuel cells can utilize the electrical energy generated during the degradation of organic pollutants in the soil to power the device (such as the first motor 4 and the second motor 19), achieving energy self-sufficiency, reducing dependence on external power, and lowering operating costs. At the same time, the reaction process of the fuel cell synergizes with the activities of microorganisms in soil remediation, further promoting the degradation of pollutants.

[0043] The output of the microbial fuel cell is connected to the control system or energy storage module of the device through wires. The generated electrical energy is processed and distributed to electrical components such as the first motor 4 and the second motor 19 to provide power for the angle adjustment and overall swing of the nozzle 13 (the microbial fuel cell is existing technology, and its specific structure and connection relationship are not shown in the diagram).

[0044] Working principle: First, the microbial fuel cell in the fixed box 24 generates electricity by degrading organic pollutants in the soil, which is then transmitted to the control system or energy storage module via wires to power the first motor 4, the second motor 19, etc.

[0045] Next, the first motor 4 is started, and its output end drives the gear 5 to rotate. Through meshing with the gear ring 8 on the outer wall of the disc 7, the disc 7 is driven to rotate. The L-shaped connecting blocks 9 on both sides of the disc 7 move in a circular motion, and then push the slider 16 to slide on the fixed rod 15 through the slide rod 17, which drives the rotating rod 10 to rotate, so that the fixed pipe 12 and the two sets of connected nozzles 13 can adjust the watering angle synchronously.

[0046] Next, after the second motor 19 starts, it drives the reciprocating screw 20 to rotate, causing the moving block 21 to move linearly back and forth along the screw. The pull rod 22 pulls the base plate 2. By utilizing the sliding fit between the bottom limiting groove 3 of the base plate 2 and the top of the base 1, the base plate 2 and the two sets of nozzles 13 can swing back and forth as a whole. During this period, the other end of the corrugated pipe 18 at one end of the fixed pipe 12 is connected to an external repair fluid supply source (such as a storage tank or main infusion pipeline; the supply source is existing technology and is not shown in the figure). The corrugated pipe 18 at one end of the fixed pipe 12 moves flexibly to extend, retract, or bend with the base plate 2 to ensure that the repair fluid is stably delivered to the nozzles 13.

[0047] Ultimately, the nozzle 13, through the combined action of angle adjustment and overall oscillation, evenly sprays the remediation fluid onto the contaminated soil. The power supply process of the microbial fuel cell and the activity of microorganisms in the soil degrading pollutants work synergistically to improve the remediation effect and achieve a combination of energy self-sufficiency and efficient soil remediation.

[0048] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A soil in-situ remediation device based on microbial fuel cells, characterized in that, It includes a base (1) and a bottom plate (2), the top of which is provided with two sets of nozzles (13), and the top of which is provided with an adjustment assembly; The adjustment assembly includes two rotating rods (10), and a first motor (4) is provided on the top of the base plate (2). The first motor (4) is used to drive the two rotating rods (10) to rotate, thereby adjusting the watering angle of the two sets of nozzles (13). Both of the rotating rods (10) are rotatably connected to the top of the base plate (2). A fixing frame (6) is fixedly installed on the top of the base plate (2). A disc (7) is rotatably connected inside the fixing frame (6). A protective cover (23) is provided on the top of the base plate (2). The first motor (4) is fixedly installed on one side of the fixed frame (6). The output end of the first motor (4) is connected to a gear (5) after passing through one side of the fixed frame (6). The outer wall of the disc (7) is fixedly connected to a gear ring (8). The gear (5) meshes with the gear ring (8). Both sides of the disc (7) are fixedly connected to connecting blocks (9), each connecting block (9) is L-shaped, and both ends of the outer wall of each rotating rod (10) are fixedly connected to connecting seats (11). A fixing pipe (12) is fixedly connected between two connecting seats (11). Each group of nozzles (13) is connected to the corresponding fixing pipe (12), and the number of nozzles (13) in each group is set to multiple. Two connecting rods (14) are fixedly connected to the outer wall of each of the rotating rods (10), and a fixed rod (15) is fixedly connected between each pair of connecting rods (14). A slider (16) is slidably connected to the outer wall of each fixed rod (15), and a sliding rod (17) is fixedly connected to one side of each slider (16). Each sliding rod (17) is slidably connected to one end of the corresponding connecting block (9).

2. The soil in-situ remediation device based on a microbial fuel cell as described in claim 1, characterized in that, The bottom of the base plate (2) is provided with a limiting groove (3), which is slidably connected to the top of the base (1). One end of each of the fixed tubes (12) is connected to a corrugated pipe (18).

3. The soil in-situ remediation device based on a microbial fuel cell as described in claim 2, characterized in that, A second motor (19) is fixedly installed on one side of the base (1), and a reciprocating screw (20) is rotatably connected to one side of the base (1). The output end of the second motor (19) passes through one side of the base (1) and is fixedly connected to one end of the reciprocating screw (20). A moving block (21) is threadedly fitted to the outer wall of the reciprocating screw (20). A pull rod (22) is fixedly connected to one side of the moving block (21), and the pull rod (22) is fixedly connected to one side of the bottom of the base plate (2).

4. The soil in-situ remediation device based on a microbial fuel cell as described in claim 1, characterized in that, A fixed box (24) is fixedly installed on the top of the base plate (2), and a microbial fuel cell is provided inside the fixed box (24).

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