Soil pollution remediation vegetation structure

Abstract

The utility model provides a vegetation structure for soil pollution remediation, and relates to the technical field of soil pollution remediation. Comprising a soil cleaning layer and a pollution layer, a treatment groove is formed in the pollution layer, a stirring assembly is arranged in the treatment groove and comprises a rotating shaft, the top end of the rotating shaft is fixedly connected with the output end of a motor, a fixing block is fixedly connected to the bottom end of the rotating shaft, and stirring blades are fixedly connected to the fixing block; the stirring assembly and the dosing assembly are arranged, a rotating shaft drives stirring blades to start to rotate, the mixing effect of chemical reagents in rainwater is accelerated, holes are formed in the stirring blades, resistance of liquid to a propeller can be reduced, accumulation of substances on the stirring blades is reduced, and therefore the frequency of blockage and maintenance is reduced; and excessive abrasion can be prevented, so that the service life of the stirring blades is prolonged, a dust cover is opened, a chemical reagent is poured into the dosing hopper, and pollutants in rainwater are integrated to be cleaned conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of soil pollution remediation, in particular to a vegetation structure for soil pollution remediation. Background Technique

[0002] Soil pollution remediation technologies mainly include physical, chemical, and biological methods, aiming to reduce the concentration of pollutants or stabilize pollutants. When selecting a remediation technology, factors such as the local environment, economy, soil characteristics, and public acceptance need to be considered.

[0003] The existing patent CN215530489U discloses a vegetation structure for soil pollution remediation. By setting a humidity sensor and using a controller to receive the output signal of the humidity sensor to control the start and stop of a pressure member, when the air humidity content of the vegetation layer is reduced to below a preset value, the pressure member automatically starts, thereby realizing automatic sprinkler irrigation of the vegetation layer. The accumulated water on the upper surface of the rainwater purification layer on rainy days can be discharged into the water collector through a drain pipe, and the excessive rainwater infiltrated into the soil layer can flow into the water collector through a filter sheet to reduce and collect the excessive water in the soil, thereby improving the growth environment of the vegetation layer.

[0004] The above technical solution uses a humidity sensor and an automatic sprinkler system to discharge the accumulated water on the upper surface of the rainwater purification layer on rainy days into the water collector through a drain pipe, and the excessive rainwater infiltrated into the soil layer can be filtered and flow into the water collector to reduce and collect the excessive water in the soil, thereby improving the growth environment of the vegetation layer. However, there is still a problem of a relatively long pollution remediation cycle in this technical solution. Using vegetation to remediate soil pollution, although it has advantages such as low cost and environmental friendliness, also faces many challenges. The growth rate of plants is relatively slow, making the remediation process take a long time, which may mean a cycle of several decades. For high-concentration pollutants, the remediation ability of plants is limited, and it is difficult to reduce the pollutant concentration to a safe level. In addition, the remediation effect of plants is greatly affected by climate and soil conditions. Extreme climate conditions such as drought and flood may limit the growth of plants, thereby affecting the remediation effect. Moreover, specific plants may only be effective for specific types of pollutants and are powerless against other pollutants, which also limits their application scope. Finally, plant remediation may require a large amount of space, which may be a problem for areas with tight land resources.

[0005] Therefore, the utility model provides a vegetation structure for soil pollution remediation. Content of the Utility Model

[0006] The purpose of the utility model is to solve the shortcomings existing in the prior art and provide a vegetation structure for soil pollution remediation.

[0007] To achieve the above object, the utility model adopts the following technical solution: A vegetation structure for soil pollution remediation, including a clean soil layer and a polluted layer. A treatment tank is provided in the polluted layer, and a stirring assembly is arranged in the treatment tank. The stirring assembly includes a rotating shaft, the top end of the rotating shaft is fixedly connected to the output end of a motor, the bottom end of the rotating shaft is fixedly connected with a fixing block, a first stirring blade is fixedly connected to the fixing block, a rotating connecting block is fixedly connected to the first stirring blade, and a second stirring blade is movably connected to the rotating connecting block.

[0008] As a preferred implementation manner, a chemical adding assembly is arranged on the clean soil layer. The chemical adding assembly includes a chemical adding pipe, the chemical adding pipe penetrates through the clean soil layer and the polluted layer and is communicated to the inside of the treatment tank. The top end of the chemical adding pipe is fixedly communicated with a chemical adding hopper, and a dust-proof cover is arranged at the top end of the chemical adding hopper.

[0009] As a preferred implementation manner, a water storage tank is provided in the polluted layer, and a spraying assembly is arranged in the water storage tank. The spraying assembly includes a spraying pipe, the spraying pipe penetrates through the clean soil layer and the polluted layer and is fixedly communicated with a water pump. A high-pressure spray head is fixedly connected to the spraying pipe.

[0010] The technical effect of adopting the above further solution is: The treated rainwater flows into the water storage tank through the water outlet pipe, and the water pump can pump the treated rainwater out of the water storage tank and transport it to each high-pressure spray head. By opening the valves in each area, the treated rainwater can be sprayed out from the high-pressure spray heads to irrigate the vegetation on the clean soil layer, realizing the recycling of water.

[0011] As a preferred implementation manner, a rainwater inlet pipe is arranged in the treatment tank. One end of the rainwater inlet pipe close to the stirring assembly penetrates through the partition plate and extends into the interior of the treatment tank. The other end of the rainwater inlet pipe away from the stirring assembly penetrates through the clean soil layer and the polluted layer. Isolation covers are fixedly communicated at both ends of the rainwater inlet pipe. One end of the spraying pipe away from the high-pressure spray head is fixedly connected with a support rod, and the other end of the support rod away from the spraying pipe is fixedly connected to the clean soil layer. A valve is arranged under the high-pressure spray head, and the valve is fixedly connected to the spraying pipe.

[0012] The technical effect of adopting the above further solution is: The water pump can pump the treated rainwater out of the water storage tank and transport it to each high-pressure spray head. By opening the valves in each area, the treated rainwater can be sprayed out from the high-pressure spray heads to irrigate the vegetation on the clean soil layer.

[0013] As a preferred implementation manner, a rainwater inlet pipe is arranged in the treatment tank. One end of the rainwater inlet pipe close to the stirring assembly penetrates through the partition plate and extends into the interior of the treatment tank. The other end of the rainwater inlet pipe away from the stirring assembly penetrates through the clean soil layer and the polluted layer. Isolation covers are fixedly communicated at both ends of the rainwater inlet pipe.

[0014] The technical effect of adopting the above further solution is that the isolation cover can more effectively prevent soil and the like entering the treatment tank from entering the water storage tank and blocking the pipeline.

[0015] As a preferred embodiment, water isolation plates are laid around the inner walls of the treatment tank and the water storage tank. A partition plate is fixedly connected to the water isolation plate in the treatment tank. One end of the spray pipe away from the high-pressure nozzle is fixedly connected with a support rod. One end of the support rod away from the spray pipe is fixedly connected to the clean soil layer. A valve is arranged under the high-pressure nozzle. The valve is fixedly connected to the spray pipe. A humidity sensor is fixedly arranged on the clean soil layer. The treatment tank and the water storage tank are communicated through a water outlet pipe. Isolation covers identical to those on the rainwater inlet pipe are fixedly connected to both ends of the water outlet pipe.

[0016] The technical effect of adopting the above further solution is that the setting of the water isolation plate can effectively prevent pollutant substances in rainwater from being absorbed by the contaminated layer, thus causing secondary pollution of the soil. The partition plate can prevent the splashing of liquid during the stirring process. The water pump can pump the treated rainwater out of the water storage tank and transport it to each high-pressure nozzle. By opening the valves in each area, the treated rainwater can be sprayed out from the high-pressure nozzles to irrigate the vegetation on the clean soil layer.

[0017] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0018] By setting the stirring component and the chemical agent adding component, the rotating shaft drives the stirring blades to start rotating, accelerating the mixing effect of chemical reagents in rainwater. The stirring blades are provided with holes, which can reduce the resistance of the liquid to the propeller, reduce the accumulation of substances on the stirring blades, thereby reducing the frequency of blockage and maintenance. In addition, it can also prevent excessive wear, thereby prolonging the service life of the stirring blades. Open the dust-proof cover and pour chemical reagents into the chemical agent adding hopper to integrate the pollutant substances in the rainwater for cleaning. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of a soil pollution remediation vegetation structure provided by the present utility model;

[0020] Figure 2 It is an internal structural diagram of a soil pollution remediation vegetation structure provided by the present utility model;

[0021] Figure 3 It is a schematic structural diagram of a stirring component of a soil pollution remediation vegetation structure provided by the present utility model;

[0022] Figure 4 It is a schematic structural diagram of a spray component of a soil pollution remediation vegetation structure provided by the present utility model.

[0023] Legend Explanation:

[0024] 1. Clean soil layer;

[0025] 2. Chemical dosing assembly; 21. Chemical dosing pipe; 22. Chemical dosing hopper; 23. Dust-proof cover;

[0026] 3. Polluted layer; 4. Water isolation plate; 5. Partition board;

[0027] 6. Stirring assembly; 61. Rotating shaft; 62. Motor; 63. Fixed block; 64. First stirring blade; 65. Rotating connection block; 66. Second stirring blade;

[0028] 7. Rainwater inlet pipe; 8. Isolation cover; 9. Outlet pipe;

[0029] 10. Spraying assembly; 101. Spraying pipe; 102. Water pump; 103. Support rod; 104. High-pressure nozzle; 105. Valve;

[0030] 11. Humidity sensor; 12. Treatment tank; 13. Water storage tank. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1-4 shown, this embodiment provides a technical solution: a vegetation structure for soil pollution remediation, including a clean soil layer 1 and a polluted layer 3. A treatment tank 12 is provided in the polluted layer 3. A stirring assembly 6 is arranged in the treatment tank 12. The stirring assembly 6 includes a rotating shaft 61. The top end of the rotating shaft 61 is fixedly connected to the output end of the motor 62. The bottom end of the rotating shaft 61 is fixedly connected to a fixed block 63. A first stirring blade 64 is fixedly connected to the fixed block 63. A rotating connection block 65 is fixedly connected to the first stirring blade 64. A second stirring blade 66 is movably connected to the rotating connection block 65. The rotating shaft 61 drives the first stirring blade 64 and the second stirring blade 66 to start rotating, accelerating the action of chemical reagents in rainwater. The first stirring blade 64 and the second stirring blade 66 are provided with holes, which can reduce the resistance of the liquid to the propeller, reduce the accumulation of substances on the first stirring blade 64 and the second stirring blade 66, thereby reducing the frequency of blockage and maintenance. In addition, it can also prevent excessive wear, thereby extending the service life of the stirring blades.

[0033] Furthermore, as Figures 2-3As shown in the figure: A chemical addition component 2 is arranged on the clean soil layer 1. The chemical addition component 2 includes a chemical addition pipe 21. The chemical addition pipe 21 penetrates through the clean soil layer 1 and the polluted layer 3 and is connected to the treatment tank 12. The top end of the chemical addition pipe 21 is fixedly connected to a chemical addition hopper 22. A dust-proof cover 23 is arranged at the top end of the chemical addition hopper 22. Open the dust-proof cover 23 and pour chemical reagents into the chemical addition hopper 22 to integrate the pollutants in the rainwater for cleaning.

[0034] In the above solution, there is also a problem of where to transport the treated water, such as Figure 4 As shown in the figure: In this solution, a water storage tank 13 is arranged in the polluted layer 3. A spraying component 10 is arranged in the water storage tank 13. The spraying component 10 includes a spraying pipe 101. The spraying pipe 101 penetrates through the clean soil layer 1 and the polluted layer 3 and is connected to a water pump 102 through penetration. A high-pressure nozzle 104 is fixedly connected to the spraying pipe 101. The treated rainwater flows into the water storage tank 13 through the water outlet pipe 9. The water pump 102 can pump the treated rainwater out of the water storage tank 13 and transport it to each high-pressure nozzle 104. Open the valves 105 in each area, and the treated rainwater can be sprayed out from the high-pressure nozzle 104 to irrigate the vegetation on the clean soil layer 1.

[0035] In the above solution, there is also a problem of the connection between the treatment tank 12 and the water storage tank 13, such as Figure 4 As shown in the figure: In this solution, a rainwater inlet pipe 7 is arranged in the treatment tank 12. One end of the rainwater inlet pipe 7 close to the stirring component 6 penetrates through the partition plate 5 and extends into the interior of the treatment tank 12. The other end of the rainwater inlet pipe 7 away from the stirring component 6 penetrates through the clean soil layer 1 and the polluted layer 3. Isolation covers 8 are fixedly connected to both ends of the rainwater inlet pipe 7. The isolation covers 8 can more effectively prevent the soil and other substances entering the treatment tank 12 from entering the water storage tank 13 and blocking the pipeline.

[0036] In the above solution, there is also a problem of how to prevent the polluted layer 3 from being polluted again, such as Figure 4 As shown in the figure: In this solution, water isolation plates 4 are laid around the inner walls of the treatment tank 12 and the water storage tank 13. A partition plate 5 is fixedly connected to the water isolation plate 4 in the treatment tank 12. The setting of the water isolation plate 4 can effectively prevent the pollutants in the rainwater from being absorbed by the polluted layer 3 and causing secondary pollution of the soil. The partition plate 5 can prevent the splashing of liquid during the stirring process.

[0037] In the above solution, there is also a problem of how to realize the recycling of water, such as Figure 4As shown: In this solution, one end of the spray pipe 101 away from the high-pressure nozzle 104 is fixedly connected with a support rod 103. One end of the support rod 103 away from the spray pipe 101 is fixedly connected with the clean soil layer 1. A valve 105 is arranged below the high-pressure nozzle 104, and the valve 105 is fixedly connected with the spray pipe 101. A humidity sensor 11 is fixedly arranged on the clean soil layer 1. The treatment tank 12 and the water storage tank 13 are connected through the water outlet pipe 9 in a penetrating manner. Both ends of the water outlet pipe 9 are fixedly connected with isolation covers 8 same as those on the rainwater inlet pipe 7. The water pump 102 can pump the treated rainwater out of the water storage tank 13 and transport it to each high-pressure nozzle 104. By opening the valves 105 in each area, the treated rainwater can be sprayed out from the high-pressure nozzles 104 to irrigate the vegetation on the clean soil layer 1.

[0038] Working principle:

[0039] As Figures 1-4 shown:

[0040] Before use: Rainwater converges in the center of the clean soil layer 1 and flows into the treatment tank 12 through the isolation cover 8 and the rainwater inlet pipe 7, and accumulates in the treatment tank 12. The pollutants on the soil surface also flow into the treatment tank 12 with the rainwater. The setting of the water isolation plate 4 can effectively prevent the pollutants in the rainwater from being absorbed by the pollution layer 3, resulting in re-pollution of the soil. At this time, open the dust-proof cover 23 and pour chemical reagents into the medicine adding hopper 22 to integrate the pollutants in the rainwater for cleaning. Open the motor 62 so that the rotating shaft 61 drives the first stirring blade 64 and the second stirring blade 66 to start rotating, accelerating the action of the chemical reagents in the rainwater. The first stirring blade 64 and the second stirring blade 66 are provided with holes, which can reduce the resistance of the liquid to the propeller, reduce the accumulation of substances on the first stirring blade 64 and the second stirring blade 66, thereby reducing the frequency of blockage and maintenance. In addition, it can also prevent excessive wear, thus prolonging the service life of the stirring blades. The treated rainwater flows into the water storage tank 13 through the water outlet pipe 9, and the water pump 102 can pump the treated rainwater out of the water storage tank 13 and transport it to each high-pressure nozzle 104. By opening the valves 105 in each area, the treated rainwater can be sprayed out from the high-pressure nozzles 104 to irrigate the vegetation on the clean soil layer 1. The water after irrigation, after taking away the pollutants in the soil, enters the treatment tank 12 again from the rainwater inlet pipe 7, realizing the recycling of water.

[0041] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A soil pollution remediation vegetation structure, comprising a clean soil layer (1) and a polluted layer (3), characterized in that: A treatment tank (12) is provided in the contaminated layer (3), a stirring assembly (6) is provided in the treatment tank (12), the stirring assembly (6) comprises a rotating shaft (61), the top end of the rotating shaft (61) is fixedly connected to the output end of the motor (62), the bottom end of the rotating shaft (61) is fixedly connected to a fixed block (63), a first stirring blade (64) is fixedly connected to the fixed block (63), a rotating connection block (65) is fixedly connected to the first stirring blade (64), and a second stirring blade (66) is movably connected to the rotating connection block (65); A dosing assembly (2) is arranged on the clean soil layer (1), and the dosing assembly (2) comprises a dosing pipe (21). The dosing pipe (21) penetrates the clean soil layer (1) and the contaminated layer (3) and is connected to the treatment tank (12). The top of the dosing pipe (21) is fixedly connected to a dosing hopper (22), and the top of the dosing hopper (22) is provided with a dust cover (23).

2. A soil pollution remediation vegetation structure according to claim 1, characterized in that: A water storage tank (13) is provided in the polluted layer (3), a spray assembly (10) is provided in the water storage tank (13), the spray assembly (10) comprises a spray pipe (101), the spray pipe (101) penetrates the clean soil layer (1) and the polluted layer (3) and is connected to a water pump (102), and a high-pressure spray head (104) is fixedly connected to the spray pipe (101).

3. The soil pollution remediation vegetation structure according to claim 1 is characterized by: A rainwater inlet pipe (7) is arranged in the treatment tank (12); the end of the rainwater inlet pipe (7) close to the stirring assembly (6) penetrates the partition (5) and extends into the interior of the treatment tank (12); the end of the rainwater inlet pipe (7) away from the stirring assembly (6) penetrates the clean soil layer (1) and the polluted layer (3); and isolation covers (8) are fixedly connected at both ends of the rainwater inlet pipe (7).

4. The soil pollution remediation vegetation structure according to claim 3 is characterized by: Water baffles (4) are laid around the inner walls of the treatment tank (12) and the water storage tank (13), and a partition (5) is fixedly connected to the water baffles (4) in the treatment tank (12).

5. The soil pollution remediation vegetation structure according to claim 2 is characterized by: A support rod (103) is fixedly connected to one end of the spray pipe (101) away from the high-pressure spray head (104); one end of the support rod (103) away from the spray pipe (101) is fixedly connected to the clean soil layer (1); a valve (105) is provided under the high-pressure spray head (104); and the valve (105) is fixedly connected to the spray pipe (101).

6. The soil pollution remediation vegetation structure according to claim 1 is characterized by: A humidity sensor (11) is fixedly arranged on the clean soil layer (1), and the treatment tank (12) and the water storage tank (13) are connected through a water outlet pipe (9), and the two ends of the water outlet pipe (9) are fixedly connected with isolation covers (8) that are the same as those on the rainwater inlet pipe (7).

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