Soil leaching simulation experiment device

Abstract

The utility model discloses a soil leaching simulation experiment device, which belongs to the technical field of soil leaching, and comprises a vehicle body provided with a liquid storage tank, a pump body and a control box; the bottommost experimental soil column is connected with the vehicle body; the input end of the pump body is communicated with the liquid storage tank through a hose, and the output end is communicated with the top column through a hose; the partition plate is detachably arranged between the top column and the uppermost experimental soil column, and a plurality of through holes are formed in the partition plate; according to the scheme, a plurality of experimental soil columns are respectively mounted to achieve the purpose of respectively filling different layers of soil, so that the soil filling is more convenient; meanwhile, different layers of soil can be conveniently sampled; under the action of the partition plates and the through holes, raw water or leachate can be uniformly distributed on the surface of soil, local supersaturation or erosion of the soil caused by water flow concentration at a certain position is avoided, the soil structure is prevented from being damaged, and the precision and reliability of a soil leaching simulation experiment are ensured.

Description

Technical Field

[0001] This utility model relates to the field of soil leaching technology, and more specifically, to a soil leaching simulation experimental device. Background Technology

[0002] In soil pollution research, accurately measuring the migration flux of pollutants in stratified soils is crucial for assessing pollution diffusion trends and developing remediation plans. Soil leaching simulation experiments are an important method for studying the migration and transformation patterns of pollutants in different soil layers. The experimental setup typically includes a column filled with different types of soil, with the top of the column simulating rainfall or other water sources seeping into the soil to achieve a leaching effect.

[0003] By simulating multi-media pollution types (water-soil diffusion model), adjusting soil organic matter concentration, controlling leaching water volume and leaching liquid type, it is possible to regulate and control various complex pollution conditions, simulate various real site pollution conditions, sample and measure the migration flux of pollutants in multiple media, and provide leaching remediation solutions.

[0004] The existing experimental setup is inconvenient when loading different types of soil into the column, resulting in poor soil stratification and affecting the accuracy of the experimental results. Furthermore, the original water or leachate at the top of the column is not evenly distributed when it enters the soil, which can easily cause local oversaturation or erosion of the soil, leading to damage to the soil structure and affecting the accuracy and reliability of the soil leaching simulation experiment.

[0005] Therefore, it is necessary to provide a soil leaching simulation experimental device to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a soil leaching simulation experimental device to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A soil leaching simulation experimental device, comprising:

[0009] The vehicle body is equipped with a liquid storage tank, a pump body, and a control box.

[0010] Multiple experimental soil columns, the bottommost experimental soil column is connected to the vehicle body, adjacent experimental soil columns are connected by flanges, and the topmost experimental soil column is connected to a top column by a flange.

[0011] The pump body's input end is connected to the liquid storage tank via a hose, and its output end is connected to the top column via a hose;

[0012] A partition plate is detachably installed between the top column and the uppermost experimental soil column, and the partition plate has multiple through holes.

[0013] Furthermore, the experimental soil column is provided with multiple sampling ports, and sampling valves are installed on the sampling ports.

[0014] Furthermore, the vehicle body is equipped with a liquid outlet pipe that communicates with the bottom experimental soil column, and a liquid outlet valve is installed on the liquid outlet pipe.

[0015] Furthermore, a groove is provided at the bottom of the partition, and a frame is slidably arranged on the inner wall of the groove. Multiple adjusting balls corresponding to the through holes are arranged on the frame.

[0016] The groove is equipped with a transmission component for driving the frame to rise and fall.

[0017] Furthermore, the transmission component includes:

[0018] A screw is threaded to the side wall of the partition, and a first wedge is rotatably connected to one end of the screw;

[0019] The second wedge is connected to the frame and is slidably adapted to the first wedge.

[0020] Furthermore, the inner wall of the groove is provided with a support plate, and the support plate has a limiting groove that is adapted to slide with the first wedge.

[0021] Furthermore, the inner wall of the groove is provided with a sliding groove, and a sliding rod connected to the frame is slidably disposed on the inner wall of the sliding groove.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. In this scheme, the raw water or leachate in the storage tank is extracted by a pump and then enters the soil in the uppermost experimental soil column through the top column. The raw water or leachate migrates from top to bottom in the soil, thereby achieving the effect of soil leaching simulation. By installing multiple experimental soil columns separately, the purpose of filling different soil layers can be achieved separately. Soil filling is more intuitive and convenient, reducing the complexity of the experiment and improving the accuracy of the experiment. At the same time, sampling and testing can be carried out on the side wall of each experimental soil column, which facilitates sampling of different soil layers and effectively improves the detection accuracy of experimental results.

[0024] 2. This scheme installs a baffle between the two flanges of the top column and the experimental soil column. Through the action of the baffle and the through hole, it can ensure that the raw water or leachate can be evenly distributed on the soil surface, avoiding water flow to concentrate at a certain point, which would cause local soil oversaturation or erosion, and prevent damage to the soil structure. This better simulates the scenario of natural rainfall or other water sources entering the soil. It can also effectively prevent the loss of soil particles caused by the direct impact of water flow on the soil surface, especially the migration of fine particles. This can maintain the integrity of the soil structure and greatly ensure the accuracy and reliability of the soil leaching simulation experiment.

[0025] 3. This solution can drive the frame and adjusting ball to rise and fall by operating the transmission components, that is, change the distance between the adjusting ball and the side wall of the through hole, which can change the speed of the liquid flowing out of the through hole. In addition, by adjusting the position between the adjusting ball and the through hole, the speed at which the liquid enters the soil from the partition can be adjusted, so as to regulate the liquid infiltration rate and better simulate the impact of different rainfall or irrigation patterns on the soil. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the leaching simulation experimental device of this utility model;

[0027] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0028] Figure 3 This is a schematic diagram of the partition structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the bottom view structure of the partition of this utility model;

[0030] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0031] Figure 6 for Figure 4 Enlarged structural diagram at point C;

[0032] Figure 7 This is a schematic cross-sectional view of the partition structure of this utility model;

[0033] Figure 8 for Figure 7 Enlarged structural diagram at point D.

[0034] Explanation of the labels in the diagram:

[0035] 1. Vehicle body; 2. Liquid storage tank; 3. Pump body; 4. Control box; 5. Experimental soil column; 6. Top column; 7. Partition plate; 8. Through hole; 9. Sampling valve; 10. Liquid outlet pipe; 11. Groove; 12. Frame; 13. Adjusting ball; 14. Transmission component; 141. Screw; 142. First wedge; 143. Second wedge; 15. Support plate; 16. Limiting groove; 17. Sliding groove; 18. Sliding rod; 19. Mounting hole. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Please see Figure 1-8 A soil leaching simulation experimental device, comprising:

[0038] Vehicle body 1, on which a liquid storage tank 2, a pump body 3 and a control box 4 are installed;

[0039] Multiple experimental soil columns 5, the bottom experimental soil column 5 is connected to the vehicle body 1, adjacent experimental soil columns 5 are connected by flanges, and the top experimental soil column 5 is connected to a top column 6 by a flange.

[0040] The input end of the pump body 3 is connected to the liquid storage tank 2 via a hose, and its output end is connected to the top column 6 via a hose.

[0041] A partition plate 7 is detachably installed between the top column 6 and the uppermost experimental soil column 5. The partition plate 7 has multiple through holes 8. The partition plate 7 also has mounting holes 19, which can be matched with the flange holes of the top column 6 and the experimental soil column 5 respectively. The top column 6, the partition plate 7 and the experimental soil column 5 are then fixed together with bolts.

[0042] In operation, the bottom soil column 5 is first installed onto the vehicle body 1. Then, the bottom layer of soil is filled into this soil column 5. After filling, the next layer of soil column 5 is connected to the bottom soil column 5 via flanges. This next layer of soil is then filled into the bottom soil column 5, and so on, with each soil column 5 connected to the next. Finally, after the top soil column 5 and soil are installed, the top column 6 is connected to the top soil column 5. The output end of the pump body 3 is then connected to the top column 6 via a hose, and the input end of the pump body 3 is connected to the storage tank 2. During the experiment, the pump body 3 draws raw water or leachate from the storage tank 2 and sends it through the top column 6 into the soil in the top soil column 5. The raw water or leachate migrates downwards in the soil, thus simulating the leaching effect. The operation is simple; multiple soil columns 5 are installed separately to fill different soil layers, making soil filling more intuitive and convenient, reducing experimental complexity and improving accuracy. During the experiment, samples can be taken from the side wall of each soil column 5, facilitating sampling of different soil layers and effectively improving the accuracy of experimental results.

[0043] The top column 6 is connected to the top experimental soil column 5 via flanges. A partition 7 is installed between the two flanges of the top column 6 and the top experimental soil column 5. Raw water or leachate entering through the top column 6 passes through the partition 7 and then enters the soil below through the through hole 8. The partition 7 and the through hole 8 ensure that the raw water or leachate is evenly distributed on the soil surface, preventing water flow from concentrating at a certain point and causing localized oversaturation or erosion of the soil, thus preventing damage to the soil structure and better simulating the scenario of natural rainfall or other water sources entering the soil. It can also effectively prevent the loss of soil particles caused by the direct impact of water flow on the soil surface, especially the migration of fine particles. This can maintain the integrity of the soil structure and greatly ensure the accuracy and reliability of the soil leaching simulation experiment.

[0044] For preferred options, please refer to [link / reference]. Figure 1 The experimental soil column 5 has multiple sampling ports, each equipped with a sampling valve 9. This design allows for easy and convenient sampling during the experiment. The sampling valve 9 can be opened at the sampling port, and the sampling device can then be inserted into the experimental soil column 5 at that location to extract the corresponding soil for testing. This makes sampling simple and convenient, and facilitates better soil analysis.

[0045] For preferred options, please refer to [link / reference]. Figure 1 The vehicle body 1 is equipped with a liquid outlet pipe 10 that communicates with the bottom experimental soil column 5, and a liquid outlet valve is installed on the liquid outlet pipe. By opening the liquid outlet valve on the liquid outlet pipe 10, the liquid flowing out of the bottom experimental soil column 5 can be collected and chemically analyzed to determine the concentration of pollutants and their changing trends.

[0046] For preferred options, please refer to [link / reference]. Figure 3-8 The bottom of the partition 7 is provided with a groove 11, and a frame 12 is slidably provided on the inner wall of the groove 11. Multiple adjusting balls 13 corresponding to the through holes 8 are provided on the frame 12.

[0047] The groove 11 is equipped with a transmission component 14 for driving the frame 12 to rise and fall.

[0048] Specifically, the raw water or leachate entering through the top column 6 passes through the partition 7 and then enters the soil below through the through-hole 8. During the experiment, the frame 12 can be raised or lowered by operating the transmission component 14. The frame 12, in turn, raises or lowers the regulating ball 13. During the raising and lowering process, the regulating ball 13 gradually moves closer to or further away from the through-hole 8, that is, the distance between the regulating ball 13 and the side wall of the through-hole 8 gradually decreases or increases, thereby changing the velocity of the liquid flowing out of the through-hole 8. Furthermore, by adjusting the position between the regulating ball 13 and the through-hole 8, the velocity of the liquid entering the soil from the partition 7 can be adjusted to regulate the liquid infiltration rate and better simulate the impact of different rainfall intensities or irrigation patterns on the soil.

[0049] For preferred options, please refer to [link / reference]. Figure 4-8 The transmission component 14 includes:

[0050] The screw 141 is threaded to the side wall of the partition 7, and one end of the screw 141 is rotatably connected to the first wedge 142;

[0051] The second wedge 143 is connected to the frame 12 and is slidably adapted to the first wedge 142.

[0052] With this design, rotating the screw 141 causes the first wedge block 142 to move horizontally. Figure 5 and Figure 8 Taking the direction as an example, when the first wedge 142 moves to the left, it will cause the second wedge 143 to move upward, which will cause the frame 12 and the adjusting ball 13 to move upward; while when the first wedge 142 moves to the right, it will move downward under the action of gravity of the frame 12 and the adjusting ball 13.

[0053] For preferred options, please refer to [link / reference]. Figure 7-8 The inner wall of the groove 11 is provided with a support plate 15, and the support plate 15 has a limiting groove 16 that slides and adapts to the first wedge 142. With this design, when the screw 141 rotates and causes the first wedge 142 to move, the first wedge 142 will move along the limiting groove 16. The limiting groove 16 can limit the movement of the first wedge 142 and improve the stability of the movement of the first wedge 142.

[0054] For preferred options, please refer to [link / reference]. Figure 4 and Figure 6-7The inner wall of the groove 11 is provided with a sliding groove 17, and a sliding rod 18 connected to the frame 12 is slidably disposed on the inner wall of the sliding groove 17. With this design, when the frame 12 moves up or down, the frame 12 will drive the sliding rod 18 to move along the sliding groove 17, and the sliding rod 18 can improve the stability of the frame 12's movement.

[0055] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0056] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0057] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A soil leaching simulation experiment device, characterized by, The utility model relates to a soil column experiment vehicle, which comprises a vehicle body (1) provided with a liquid storage tank (2), a pump body (3) and a control box (4); a plurality of experimental soil columns (5) are connected to the bottom of the vehicle body (1), and adjacent experimental soil columns (5) are connected through flanges; the top experimental soil column (5) is connected to a top column (6) through a flange; the input end of the pump body (3) is connected to the liquid storage tank (2) through a hose, and the output end of the pump body (3) is connected to the top column (6) through a hose; a partition plate (7) is detachably arranged between the top column (6) and the top experimental soil column (5), and a plurality of through holes (8) are formed in the partition plate (7). A plurality of sampling ports are formed in the experimental soil column (5), and a sampling valve (9) is arranged on each sampling port. A liquid outlet pipe (10) is arranged on the vehicle body (1) and connected to the bottom experimental soil column (5), and a liquid outlet valve is arranged on the liquid outlet pipe. A groove (11) is formed in the bottom of the partition plate (7), a frame (12) is slidably arranged in the inner wall of the groove (11), and a plurality of adjusting balls (13) corresponding to the through holes (8) are arranged on the frame (12). A transmission component (14) is arranged in the groove (11) to drive the frame (12) to move up and down.

2. The soil leaching simulation experiment device according to claim 1, characterized in that, The transmission component (14) comprises a screw rod (141) threadedly connected to the side wall of the partition plate (7), and a first wedge block (142) rotatably connected to one end of the screw rod (141); and a second wedge block (143) connected to the frame (12) and slidably matched with the first wedge block (142).

3. The soil leaching simulation experiment device according to claim 1, characterized in that, A support plate (15) is arranged on the inner wall of the groove (11), and a limiting groove (16) slidably matched with the first wedge block (142) is formed in the support plate (15).

4. The soil leaching simulation experiment device according to claim 1, characterized in that, A sliding groove (17) is formed in the inner wall of the groove (11), and a sliding rod (18) connected to the frame (12) is slidably arranged in the inner wall of the sliding groove (17). ​ 5. The soil leaching simulation experiment device according to claim 4, characterized in that, ​ ​ ​ 6. The soil leaching simulation experiment device according to claim 5, characterized in that, ​ 7. The soil leaching simulation experiment device according to claim 5, characterized in that, ​

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