Agricultural soil remediation device

Abstract

The utility model relates to the technical field of soil remediation, and discloses an agricultural soil remediation device, which realizes multi-channel rotary spraying of chemical liquid by arranging structures such as a liquid injection pipeline, an injection pipe and a direct flow hole, and the liquid in the liquid injection pipeline enters the injection pipe after being shunted by a branch pipe. Due to the arrangement of the position of the direct flow hole, the direct flow hole generates recoil force on the injection pipe during spraying, the recoil force drives the injection pipe to rotate on the outer ring of the branch pipe, and when the injection pipe rotates, the upper plate is in contact with the top surface of the ball, so that the radial friction force during rotation is reduced; the bearing reduces the axial friction force during rotation, so that the injection pipe can rotate more smoothly, soil around the injection pipe is wetted by chemical liquid through rotary spraying of the direct flow hole, the permeation radius of the chemical liquid can be prolonged through spraying of the injection pipe in the rotating process, and the rotary spraying effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation, in particular to an agricultural soil remediation device. Background Art

[0002] Soil pollutants can be roughly divided into two categories: inorganic pollutants and organic pollutants. Inorganic pollutants mainly include acids, alkalis, heavy metals, salts, radioactive elements such as cesium and strontium compounds, and compounds containing arsenic, selenium, and fluorine. Organic pollutants mainly include organic pesticides, phenols, cyanides, petroleum, synthetic detergents, and harmful microorganisms brought by urban sewage, sludge, and manure. In the process of soil remediation, soil remediation devices are needed. Soil remediation mainly includes: solidification / stabilization, soil flushing remediation, soil leaching remediation, etc.

[0003] In the prior art, there are certain problems with soil flushing remediation devices. The injection pipes and extraction pipes buried or inserted into the soil are not specifically designed. The injection pipes can only inject chemical solutions in a single direction or fixed multiple directions, and the extraction pipes can only suck after the chemical solutions penetrate the soil. Conventional extraction pipes do not have a filtering device, resulting in soil debris entering the treatment tank together with the waste liquid, increasing the workload of the treatment tank. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an agricultural soil remediation device, which has the advantages of high-pressure rotary injection and permeable filtration, and solves the problems put forward in the above background art.

[0005] The utility model provides the following technical scheme: an agricultural soil remediation device, including a bottom plate. On one side of the top of the bottom plate, a liquid storage tank is fixedly installed. On the other side of the top of the bottom plate, a treatment tank is fixedly installed. A return pipe is fixedly connected between the bottom of the treatment tank and the liquid storage tank. On the top of the bottom plate, on one side of the liquid storage tank, a pump A is fixedly installed. An input pipe is connected between the pump A and the liquid storage tank. The end of the pump A is fixedly connected with a pumping cylinder. On one side of the pumping cylinder, a liquid injection pipeline is fixedly connected. On the top of the bottom plate, on one side of the treatment tank, a pump B is fixedly installed. A connecting pipe is fixedly connected between the pump B and the treatment tank. The end of the pump B is fixedly connected with a suction cylinder. On one side of the suction cylinder, a liquid return pipeline is fixedly connected. Below the liquid injection pipeline, injection pipes are evenly arranged in a linear array. Below the liquid return pipeline, extraction pipes are evenly arranged in a linear array. A fixed pipe head is connected inside the extraction pipe where the liquid return pipeline is located.

[0006] With the above structural settings, by setting the injection pipe, the chemical liquid can be rotated and sprayed, the spraying radius of the injection pipe can be increased, and at the same time, the number of conventional injection wells can be reduced. By setting the extraction pipe, after the waste liquid contacts the absorption sponge, it is suctioned through infiltration, achieving a significant reduction in the soil content in the waste liquid. And due to the setting of the absorption sponge material, the service life can be extended.

[0007] Preferably, a branch pipe is provided inside the injection pipe at the bottom of the liquid injection pipeline. The injection pipe is rotatably sleeved on the outer circle of the branch pipe. A mechanical seal is provided between the branch pipe and the injection pipe. A sleeve plate is fixedly sleeved on the outer circle of the branch pipe. A plurality of balls are evenly and rotatably installed in the sleeve plate in a circular ring shape. The liquid injection pipeline is rotatably sleeved on the outer circle of the branch pipe with a bearing. The outer diameter of the bearing is adapted to the inner wall size of the injection pipe.

[0008] With the above structural settings, the injection pipe can rotate on the outer circle of the branch pipe. Through the settings of the balls and the bearing, the radial pressure and axial pressure during the rotation process can be reduced respectively. After reducing the friction force, the injection pipe can rotate more smoothly.

[0009] Preferably, a plurality of direct current holes are evenly formed on the surface of the injection pipe in a linear array. Friction plates are symmetrically arranged inside the injection pipe. The friction plate includes an upper plate and a lower plate. The bottom surface of the upper plate is in close contact with the surface of the ball. The end head of the branch pipe is located inside the lower plate. The lower plate is located on the lower surface of the bearing.

[0010] With the above structural settings, when the injection pipe sprays the chemical liquid, due to the oblique setting of the direct current holes, due to the recoil force of water, it will drive the injection pipe to rotate on the outer circle of the branch pipe, thereby realizing the rotary spraying of the chemical liquid.

[0011] Preferably, a plurality of infiltration grooves are evenly formed on the surface of the extraction pipe in a linear array. The infiltration groove is a groove with narrow ends and a wide middle. An absorption sponge is clamped inside the infiltration groove. The absorption sponge is located at the middle position of the infiltration groove. The absorption sponge is a sponge made of polyethersulfone material.

[0012] With the above structural settings, the chemical liquid wets the soil. The wetted soil contacts the absorption sponge at the port of the infiltration groove. When the absorption sponge adsorbs the waste liquid in the soil to saturation, the waste liquid seeps out into the inside of the extraction pipe, realizing the filtration of the soil.

[0013] The utility model has the following effects:

[0014] 1. The agricultural soil remediation device realizes multi-channel rotary spraying of chemical liquids through structures such as a liquid injection pipeline, an injection pipe, and direct current holes. The liquid inside the liquid injection pipeline is shunted through branch pipes and enters the inside of the injection pipe respectively. Subsequently, the injection pipe sprays the liquid outward through the direct current holes. Due to the position of the direct current holes, a recoil force is generated on the injection pipe when the liquid is sprayed out. The recoil force drives the injection pipe to rotate on the outer circle of the branch pipe. When the injection pipe rotates, the upper plate contacts the top surface of the ball, reducing the radial friction during rotation, and the bearing reduces the axial friction during rotation, enabling the injection pipe to rotate more smoothly. The rotating spraying through the direct current holes wets the soil around the injection pipe with the chemical liquid. The spraying during the rotation of the injection pipe can extend the penetration radius of the chemical liquid, achieving the effect of rotary spraying.

[0015] 2. The agricultural soil remediation device realizes soil filtration during suction through structures such as an extraction pipe, a permeation tank, and an absorption sponge. The liquid slowly flows towards the extraction pipe through the soil. Subsequently, the soil mixed with waste liquid contacts the extraction pipe. When the soil passes through the permeation tank and contacts the absorption sponge, the absorption sponge absorbs the waste liquid in the soil. When the absorption sponge is saturated, the water in it penetrates into the inside of the extraction pipe. Start pump B. Pump B sucks the suction cylinder to increase the suction force inside the extraction pipe through the return liquid pipeline, accelerating the extraction of the waste liquid in the soil in contact with the absorption sponge, achieving the effect of soil filtration. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is an exploded schematic diagram of the return liquid pipeline structure of the present utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the injection pipe of the present utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the extraction pipe of the present utility model;

[0020] Figure 5 It is a partial internal view of the injection pipe structure of the present utility model;

[0021] Figure 6 It is a sectional view of the injection pipe structure of the present utility model.

[0022] In the figure: 1. Bottom plate; 11. Liquid storage tank; 12. Treatment tank; 13. Return pipe; 14. Pump A; 15. Pumping cylinder; 16. Pump B; 17. Connecting pipe; 18. Suction cylinder; 2. Liquid injection pipeline; 21. Branch pipe; 22. Sleeve plate; 23. Ball; 24. Bearing; 3. Liquid return pipeline; 31. Fixed pipe head; 4. Injection pipe; 41. DC hole; 42. Friction plate; 5. Extraction pipe; 51. Penetration tank; 52. Absorbent sponge. Specific implementation mode

[0023] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1 - Figure 2 , an agricultural soil remediation device, including a bottom plate 1. A liquid storage tank 11 is fixedly installed on one side of the top of the bottom plate 1. A treatment tank 12 is fixedly installed at a symmetrical position of the top of the bottom plate 1 with respect to the liquid storage tank 11. The treatment tank 12 is internally provided with three layers of filtration, namely centrifugal filtration, ultrafiltration membrane, and reverse osmosis membrane. Centrifugal filtration removes suspended solids in the waste liquid, the ultrafiltration membrane intercepts colloids and microorganisms, and the reverse osmosis membrane removes heavy metal ions. The above filtration technology is a conventional application of existing technology and is a mature technology, which is not explained in detail in this device. A return pipe 13 is fixedly connected between the bottom of the treatment tank 12 and the liquid storage tank 11. A pump A 14 is fixedly installed on one side of the top of the bottom plate 1 with respect to the liquid storage tank 11. An input pipe is connected between the pump A 14 and the liquid storage tank 11. The end of the pump A 14 is fixedly connected to a pumping cylinder 15. When the pump A 14 works, it pumps the chemical liquid inside the liquid storage tank 11 into the pumping cylinder 15. A liquid injection pipeline 2 is fixedly connected to one side of the pumping cylinder 15. A pump B 16 is fixedly installed on one side of the top of the bottom plate 1 with respect to the treatment tank 12. A connecting pipe 17 is fixedly connected between the pump B 16 and the treatment tank 12. The end of the pump B 16 is fixedly connected to a suction cylinder 18. When the pump B 16 works, it pumps the liquid inside the suction cylinder 18 into the connecting pipe 17, so that the waste liquid is filtered inside the treatment tank 12. The filtered liquid returns to the liquid storage tank 11 through the return pipe 13 to realize resource recovery and reuse. A liquid return pipeline 3 is fixedly connected to one side of the suction cylinder 18. Injection pipes 4 are uniformly arranged in a linear array below the liquid injection pipeline 2. Extraction pipes 5 are uniformly arranged in a linear array below the liquid return pipeline 3. A fixed pipe head 31 is connected inside the extraction pipe 5 where the liquid return pipeline 3 is located.

[0025] The working process of this device is as follows: Pump A14 sucks out the liquid inside the liquid storage tank 11 and injects it into the inside of the injection pipeline 2 through the pumping cylinder 15. After being split by the injection pipeline 2, it enters the inside of the injection pipe 4. Through the spraying of the injection pipe 4, the soil around the injection pipe 4 is wetted by the chemical liquid. The liquid contacts the extraction pipe 5 through infiltration. Subsequently, pump B16 is started, and the air-liquid mixture inside the return liquid pipeline 3 is sucked through the suction cylinder 18. The waste liquid infiltrated inside the extraction pipe 5 is sucked away by the suction cylinder 18 through the return liquid pipeline 3 and enters the inside of the treatment tank 12. Subsequently, through the three-stage filtration of the treatment tank 12, suspended solids are removed, colloids and microorganisms are intercepted, heavy metal ions are removed, etc. The filtered waste liquid flows back into the liquid storage tank 11 through the return pipe 13, realizing the recycling of the waste liquid and reducing resource consumption.

[0026] In practical applications of this device, through the setting of the treatment tank 12, impurities in the waste liquid are reduced and removed, and then it flows back into the liquid storage tank 11 through the return pipe 13, realizing the recycling of the waste liquid. Secondly, by setting the injection pipe 4, the chemical liquid can be rotated and sprayed, the spraying radius of the injection pipe 4 is increased, and at the same time, the number of conventional injection wells is reduced, achieving the effect of reducing the number of injection wells and increasing the repair rate; by setting the extraction pipe 5, the soil mixed with the waste liquid is filtered. By setting the absorption sponge 52, the soil is blocked outside the extraction pipe 5, and after the waste liquid contacts the absorption sponge 52, it is sucked through infiltration, realizing a significant reduction in the soil content in the waste liquid. Moreover, due to the material setting of the absorption sponge 52, its service life can be extended.

[0027] Please refer to Figure 1 - Figure 3 , at the bottom of the injection pipeline 2, there is a branch pipe 21 inside the injection pipe 4. The injection pipe 4 is rotatably sleeved on the outer circle of the branch pipe 21. The branch pipe 21 and the injection pipe 4 are mechanically sealed with each other. A sleeve plate 22 is fixedly sleeved on the outer circle of the branch pipe 21. Inside the sleeve plate 22, a plurality of balls 23 are evenly and rotatably installed in an annular shape. The injection pipeline 2 is rotatably sleeved on the outer circle of the branch pipe 21 with a bearing 24. The outer diameter of the bearing 24 is adapted to the inner wall size of the injection pipe 4.

[0028] Through the mutual cooperation of the injection pipeline 2 and the injection pipe 4, during operation, the injection pipe 4 can rotate around the outer circle of the branch pipe 21. Through the setting of the balls 23 and the bearing 24, the radial pressure and axial pressure during the rotation process can be reduced respectively. After reducing the friction force, the injection pipe 4 can rotate more smoothly.

[0029] Please refer to Figure 1 - Figure 3, the surface of the injection pipe 4 is evenly provided with direct current holes 41 in a linear array. The positions of the direct current holes 41 are not in the middle of the injection pipe 4. The advantage of this setting is that when the injection pipe 4 sprays chemical liquid, due to the oblique setting of the direct current holes 41 and the recoil force of water, the injection pipe 4 will be driven to rotate around the outer circle of the branch pipe 21, thereby realizing the rotary spraying of chemical liquid. Friction plates 42 are symmetrically arranged inside the injection pipe 4. The friction plates 42 include an upper plate and a lower plate. The bottom surface of the upper plate closely adheres to the surface of the ball 23 to reduce the friction when the injection pipe 4 rotates. The head of the branch pipe 21 is located inside the lower plate, and the lower plate is located on the lower surface of the bearing 24 for supporting the bearing 24. At this time, when the injection pipe 4 is actually working, the recoil force of water drives the injection pipe 4 to rotate around the outer circle of the branch pipe 21. The upper plate closely adheres to the ball 23 to reduce the radial friction during rotation, while the bearing 24 is located between the inner wall of the injection pipe 4 and the outer wall of the branch pipe 21 to reduce the axial friction during rotation, enabling the injection pipe 4 to rotate smoothly.

[0030] Please refer to Figure 1 - Figure 4 , the surface of the extraction pipe 5 is evenly provided with permeation grooves 51 in a linear array. The permeation grooves 51 are grooves with narrow ends and wide middle parts. An absorption sponge 52 is clamped inside the permeation grooves 51. The absorption sponge 52 is located in the middle of the permeation grooves 51, and the position of the absorption sponge 52 is fixed by the permeation grooves 51. The absorption sponge 52 is a sponge made of polyethersulfone. When the chemical liquid wets the soil and contacts the absorption sponge 52 at the port of the permeation groove 51 where the soil is located, the absorption sponge 52 adsorbs the waste liquid in the soil. When the absorption sponge 52 is saturated with liquid, the waste liquid seeps out into the interior of the extraction pipe 5. Subsequently, the pump B16 is started to suck the waste liquid, realizing the suction of the waste liquid while filtering the soil and avoiding soil erosion.

[0031] Working principle: When in use, first fill the inside of the liquid storage tank 11 with chemical liquid, and then start the pump A14. The pump A14 sucks the liquid inside the liquid storage tank 11 through the input pipe and pumps it into the inside of the pumping cylinder 15. The pumping cylinder 15 injects water pressure into the inside of the liquid injection pipeline 2. The liquid injection pipeline 2 is branched through the branch pipe 21 and enters the inside of the injection pipe 4 respectively. Subsequently, the injection pipe 4 sprays the liquid outward through the direct current hole 41. Due to the position of the direct current hole 41, the direct current hole 41 generates a recoil force on the injection pipe 4 while spraying. The recoil force drives the injection pipe 4 to rotate around the outer circle of the branch pipe 21. When the injection pipe 4 rotates, the upper plate contacts the top surface of the ball 23, reducing the radial friction during rotation. The bearing 24 reduces the axial friction during rotation, enabling the injection pipe 4 to rotate more smoothly. Through the rotational spraying of the direct current hole 41, the soil around the injection pipe 4 is moistened by the chemical liquid. The spraying during the rotation of the injection pipe 4 can extend the penetration radius of the chemical liquid. The liquid slowly flows towards the extraction pipe 5 through the penetration of the soil. Subsequently, when the soil mixed with the waste liquid contacts the extraction pipe 5 and the soil contacts the absorption sponge 52 through the penetration groove 51, the absorption sponge 52 will absorb the waste liquid in the soil. When the absorption sponge 52 is saturated, the moisture therein penetrates into the inside of the extraction pipe 5. Start the pump B16. The pump B16 sucks the suction cylinder 18 to increase the suction force inside the extraction pipe 5 through the return liquid pipeline 3, so that the waste liquid in the soil in contact with the absorption sponge 52 is accelerated and sucked away. The waste liquid is sucked away by the suction cylinder 18 through the return liquid pipeline 3 and enters the inside of the treatment tank 12. Subsequently, after three-stage filtration in the treatment tank 12, the filtered waste liquid flows back into the liquid storage tank 11 through the return pipe 13, realizing the recycling of the waste liquid and reducing resource consumption.

Claims

1. An agricultural soil remediation device, comprising a bottom plate (1), characterized in that: On one side of the top of the bottom plate (1), a liquid storage tank (11) is fixedly installed. On the other side of the top of the bottom plate (1), a treatment tank (12) is fixedly installed. A reflux pipe (13) is fixedly connected between the bottom of the treatment tank (12) and the liquid storage tank (11). On the top of the bottom plate (1) and on one side of the liquid storage tank (11), a pump A (14) is fixedly installed. An input pipe is connected between the pump A (14) and the liquid storage tank (11). The end of the pump A (14) is fixedly connected to a pumping cylinder (15). A liquid injection pipeline (2) is fixedly connected to one side of the pumping cylinder (15). On the top of the bottom plate (1) and on one side of the treatment tank (12), a pump B (16) is fixedly installed. A connecting pipe (17) is fixedly connected between the pump B (16) and the treatment tank (12). The end of the pump B (16) is fixedly connected to a suction cylinder (18). A liquid return pipeline (3) is fixedly connected to one side of the suction cylinder (18). Below the liquid injection pipeline (2), injection pipes (4) are evenly arranged in a linear array. Below the liquid return pipeline (3), extraction pipes (5) are evenly arranged in a linear array. A fixed pipe head (31) is connected inside the extraction pipe (5) of the liquid return pipeline (3).

2. The agricultural soil remediation device according to claim 1, wherein: At the bottom of the liquid injection pipeline (2) and inside the injection pipe (4), there is a branch pipe (21). The injection pipe (4) is rotatably sleeved on the outer circle of the branch pipe (21). The branch pipe (21) and the injection pipe (4) are mechanically sealed with each other. A sleeve plate (22) is fixedly sleeved on the outer circle of the branch pipe (21). Inside the sleeve plate (22), balls (23) are evenly rotatably installed in a circular ring shape. The liquid injection pipeline (2) is rotatably sleeved on the outer circle of the branch pipe (21) with a bearing (24). The outer circle of the bearing (24) is adapted to the inner wall size of the injection pipe (4).

3. An agricultural soil remediation device according to claim 2, characterized in that: On the surface of the injection pipe (4), direct current holes (41) are evenly opened in a linear array. Inside the injection pipe (4), friction plates (42) are symmetrically arranged. The friction plate (42) includes an upper plate and a lower plate. The bottom surface of the upper plate closely adheres to the surface of the ball (23). The end of the branch pipe (21) is located inside the lower plate. The lower plate is located on the lower surface of the bearing (24).

4. An agricultural soil remediation device according to claim 3, characterized in that: On the surface of the extraction pipe (5), penetration grooves (51) are evenly opened in a linear array. The penetration groove (51) is a notch with narrow ends and a wide middle. An absorption sponge (52) is clamped inside the penetration groove (51). The absorption sponge (52) is located at the middle position of the penetration groove (51). The absorption sponge (52) is a sponge made of polyethersulfone material.

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