Soil pollutant migration simulation experiment device

Abstract

The utility model discloses a soil pollutant migration simulation experiment device which comprises a soil column, a beaker, a cover plate, a bottom plate, filter paper, a top cover, a water distributor, an infusion bottle, a liquid supply pipe and a flow regulator. The soil column is of a hollow cylindrical structure with openings in the upper end and the lower end, the cover plate is arranged on the outer edge of the bottom of the soil column, the bottom plate is located at the opening in the bottom of the soil column, the filter paper is located above the bottom plate, a plurality of outflow ports are formed in the bottom plate, the beaker is located at the bottom of the soil column, and the beaker is located at the bottom of the soil column. The beaker is arranged in the soil column, the top of the beaker abuts against the cover plate, scales are arranged on the side wall of the beaker, the bottom plate is located above the beaker, the top cover is located at a top opening of the soil column, the water distributor is located below the top cover, and the hanging bottle is located above the soil column. The technical scheme is used for solving the problems of high equipment cost and air influence when an existing soil column is used for pollutant simulated migration detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental devices, and particularly relates to a soil pollutant migration simulation experimental device. Background Art

[0002] At present, experimental equipment for detecting the migration, distribution, and change of pollutants in soil usually has a soil column. By adding pollutants to the soil and then watering from the top to simulate rainwater. However, such equipment has the following disadvantages:

[0003] The amount of water injected into the soil is difficult to accurately control. Generally, a metering pump needs to be set up, but the equipment cost of the metering pump is relatively high. When the number of experimental groups is large, there is a problem of high experimental equipment cost.

[0004] In addition, carbon dioxide in the air will affect the experimental results. The water separated from the existing soil column is directly exposed to the air, resulting in a problem of low accuracy of the detection results. Summary of the Utility Model

[0005] In view of the above technical problems, the utility model provides a soil pollutant migration simulation experimental device to solve the problems of high equipment cost and air influence when the existing soil column is used for simulating pollutant migration detection. The soil pollutant migration simulation experimental device effectively reduces the equipment cost and avoids the influence of air contact at the same time.

[0006] The utility model provides a soil pollutant migration simulation experimental device, which includes a soil column, a beaker, a cover plate, a bottom plate, a filter paper, a top cover, a water distributor, a hanging bottle, a liquid supply pipe, and a flow regulator; the soil column is a hollow cylindrical structure with openings at both the upper and lower ends. The cover plate is arranged at the outer edge of the bottom of the soil column. The bottom plate is located at the bottom opening of the soil column. The filter paper is located above the bottom plate. The bottom plate is provided with a plurality of outflow ports. The beaker is located at the bottom of the soil column, and the top of the beaker abuts against the cover plate. The side wall of the beaker is provided with scales. The bottom plate is located above the beaker. The top cover is located at the top opening of the soil column. The water distributor is located below the top cover. The hanging bottle is located above the soil column. The top end of the liquid supply pipe is connected to the bottom of the hanging bottle. The bottom end of the liquid supply pipe passes through the top cover and is connected to the water distributor. The flow regulator is arranged on the liquid supply pipe. The bottom of the water distributor is provided with a plurality of water outlet holes.

[0007] Further, the number of the filter papers is 2 layers, and the 2 layers of filter papers are stacked on the top of the bottom plate.

[0008] Further, the soil pollutant migration simulation experimental device further includes a tripod, and the tripod is arranged below the cover plate.

[0009] Further, the soil pollutant migration simulation experimental device further includes a support frame, the bottom of the support frame is fixed on the soil column, and the hanging bottle is hung on the top of the support frame.

[0010] This soil pollutant migration simulation experimental device is provided with a hanging bottle for supplying leaching water. At the same time, a flow regulator is provided on the liquid supply pipe, which can accurately control the accuracy of the supply water volume and the adjustability of the water supply speed. Moreover, compared with the method of using a pump for supply, the cost of the hanging bottle is significantly lower, and the control of the water supply volume also has good accuracy. Furthermore, this soil pollutant migration simulation experimental device uses a cover plate to seal the top of the beaker, thereby reducing the direct contact between the leaching water falling from the soil column and the air, effectively improving the accuracy of the experimental results and avoiding the influence of air. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 It is a schematic structural diagram of a soil pollutant migration simulation experimental device. Detailed Embodiments

[0013] The present invention discloses a soil pollutant migration simulation experimental device, which effectively reduces the equipment cost and at the same time avoids the influence of air contact.

[0014] The following will clearly and completely describe the technical solutions in the present invention with reference to the drawings in the present invention. Obviously, what is described is 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 without creative efforts based on the embodiments in the present invention belong to the scope of protection of the present invention.

[0015] See Figure 1As shown in the figure, the present utility model discloses a soil pollutant migration simulation experimental device, which includes a soil column 7, a beaker 11, a cover plate 10, a bottom plate 8, a filter paper 9, a top cover 6, a water distributor 5, a hanging bottle 1, a liquid supply pipe 4 and a flow regulator 3; the soil column 7 is a hollow cylindrical structure with openings at both the upper and lower ends, the cover plate 10 is arranged at the outer edge of the bottom of the soil column 7, the bottom plate 8 is located at the bottom opening of the soil column 7, the filter paper 9 is located above the bottom plate 8, the bottom plate 8 is provided with a plurality of liquid outlets, the beaker 11 is located at the bottom of the soil column 7, and the top of the beaker 11 abuts against the cover plate 10, the side wall of the beaker 11 is provided with scales, the bottom plate 8 is located above the beaker 11, the top cover 6 is located at the top opening of the soil column 7, the water distributor 5 is located below the top cover 6, the hanging bottle 1 is located above the soil column 7, the top end of the liquid supply pipe 4 is connected to the bottom of the hanging bottle 1, the bottom end of the liquid supply pipe 4 passes through the top cover 6 and is connected to the water distributor 5, the flow regulator 3 is arranged on the liquid supply pipe 4, and the bottom of the water distributor 5 is provided with a plurality of water outlets.

[0016] The number of the filter papers 9 is 2 layers, and the 2 layers of the filter papers 9 are stacked on the top of the bottom plate 8.

[0017] The soil pollutant migration simulation experimental device further includes a tripod 12, and the tripod 12 is arranged below the cover plate 10.

[0018] The soil pollutant migration simulation experimental device further includes a support frame 2, the bottom of the support frame 2 is fixed on the soil column 7, and the hanging bottle 1 is hung on the top of the support frame 2.

[0019] The soil pollutant migration simulation experimental device is provided with a hanging bottle 1 for supplying leaching water. At the same time, a flow regulator 3 is arranged on the liquid supply pipe 4, which can accurately control the accuracy of the supply water volume and the adjustability of the water supply speed. Moreover, compared with the method of using a pump for supply, the cost of the hanging bottle 1 is significantly lower, and the control of the water supply volume also has better accuracy; furthermore, the soil pollutant migration simulation experimental device uses a cover plate 10 to seal the top of the beaker 11, thereby reducing the direct contact between the leaching water falling from the soil column 7 and the air, effectively improving the accuracy of the experimental results and avoiding the influence of the air.

[0020] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or replacements can still be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. A simulation experimental device for soil pollutant migration, characterized in that It includes a soil column, a beaker, a cover plate, a bottom plate, filter paper, a top cover, a water distributor, a hanging bottle, a liquid supply pipe and a flow regulator; the soil column is a hollow cylindrical structure with openings at both the upper and lower ends, the cover plate is arranged at the outer edge of the bottom of the soil column, the bottom plate is located at the bottom opening of the soil column, the filter paper is located above the bottom plate, the bottom plate is provided with a plurality of outflow ports, the beaker is located at the bottom of the soil column, and the top of the beaker abuts against the cover plate, the side wall of the beaker is provided with scales, the bottom plate is located above the beaker, the top cover is located at the top opening of the soil column, the water distributor is located below the top cover, the hanging bottle is located above the soil column, the top end of the liquid supply pipe is connected to the bottom of the hanging bottle, the bottom end of the liquid supply pipe passes through the top cover and is connected to the water distributor, the flow regulator is arranged on the liquid supply pipe, and the bottom of the water distributor is provided with a plurality of water outlet holes.

2. The soil pollutant migration simulation experiment device according to claim 1, characterized in that, The number of the filter papers is 2 layers, and the 2 layers of filter papers are stacked on the top of the bottom plate.

3. The soil pollutant migration simulation experiment device according to claim 1, wherein The soil pollutant migration simulation experimental device further includes a tripod, and the tripod is arranged below the cover plate.

4. A soil pollutant migration simulation experiment device according to claim 1, characterized in that The soil pollutant migration simulation experimental device further includes a support frame, the bottom of the support frame is fixed on the soil column, and the hanging bottle is hung on the top of the support frame.

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