Indoor soil column leaching test device for saline-alkali soil treatment

Abstract

The utility model provides an indoor soil column leaching test device for saline-alkali soil treatment, and relates to the technical field of saline-alkali soil treatment. Four groups of conical positioning supporting rings are arranged on the inner side of the supporting piece, conical filtering openings are supported in the positioning supporting rings, the measuring barrel is connected above the conical filtering openings, the leaching top cover is connected above the measuring barrel, the leaching connector is connected above the leaching top cover, the threaded connector is arranged on the rear side of the leaching connector and connected with the water inlet connector, and the water outlet connector is connected with the water inlet connector. The device has the advantages that the interior of the measuring barrel is easy to clean, the leaching water amount can be accurately monitored, and the problems that the internal space of the measuring barrel of an existing device is not easy to clean, and the leaching water amount cannot be accurately monitored are solved.

Description

Technical Field

[0001] This utility model belongs to the field of saline-alkali land management technology, and more specifically, it relates to an indoor soil column leaching test device for saline-alkali land management. Background Technology

[0002] To systematically study the relationship between the leaching effect of saline-alkali soil and factors such as leaching water volume and leaching frequency, laboratory simulation experiments are typically employed. This involves setting up a leaching frame and arranging multiple soil columns on it. This experimental design allows for precise control of experimental conditions, making the research more repeatable and reliable, while also saving space. However, existing indoor soil column leaching test devices often have the measuring barrel and bottom conical filter screen essentially integrated, making it difficult to clean the internal space of the measuring barrel and preventing accurate monitoring of leaching water volume. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an indoor soil column leaching test device for saline-alkali land remediation, which solves the problems of the existing device's internal space of the measuring tank being difficult to clean and its inability to accurately monitor the amount of leached water.

[0004] This utility model of an indoor soil column leaching test device for saline-alkali land remediation is achieved through the following specific technical means:

[0005] An indoor soil column leaching test device for saline-alkali land treatment includes: a support component; the support component has four sets of positioning rings on its inner side, the positioning rings are conical, the positioning rings support a conical filter, the top of the conical filter is connected to a test bucket, the top of the test bucket is connected to a leaching top cover, the top of the leaching top cover is connected to a leaching connector, the rear side of the leaching connector is provided with a threaded connector, the threaded connector is connected to a water inlet connector, the water inlet connector is provided with a water inlet switch, the rear side of the water inlet connector (801) is connected to a water inlet pipe (8), and the water inlet end of the water inlet pipe (8) is provided with a flow meter (9).

[0006] Furthermore, a drainage plate is provided inside the conical filter port, the drainage plate has drainage holes, and a threaded surrounding plate is provided around the drainage plate.

[0007] Furthermore, the lower side of the measuring barrel is provided with a threaded groove, the threaded retaining plate is placed in the threaded groove, a filter screen is provided at the lower part of the measuring barrel, and a threaded outer wall is provided on the upper side of the measuring barrel.

[0008] Furthermore, the measuring barrel is provided with a leaching top cover, the lower side of the leaching top cover is provided with a threaded inner wall, the upper side of the leaching top cover is provided with a leaching hole, and a leaching connector is connected to the top of the leaching top cover.

[0009] Furthermore, both the measuring barrel and the conical filter outlet are made of transparent PVC plastic.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This utility model makes the conical filter and the measuring barrel detachable, which makes it easy to clean the measuring barrel after the leaching experiment and avoids affecting the data of the next experiment due to incomplete cleaning.

[0012] 2. This utility model prevents soil particles from falling out of the drainage holes by setting a filter screen above the drainage board.

[0013] 3. By setting up a water inlet switch and a flow meter, this utility model can accurately control the water inlet time of each soil column and precisely control the variables.

[0014] 4. This utility model makes it easier to observe changes in the soil profile by making the conical filter and the measuring bucket transparent. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the support structure of this utility model.

[0017] Figure 3 This is a top-view structural diagram of the soil column of this utility model.

[0018] Figure 4 This is a schematic diagram of the exploded, bottom-view structure of the soil column of this utility model.

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the soil column of this utility model.

[0020] Figure 6 This is a schematic diagram of the water inlet pipe connection structure of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Support components;

[0023] 2. Positioning ring;

[0024] 3. Measuring barrel; 301. Threaded outer wall; 302. Threaded groove;

[0025] 4. Conical filter opening;

[0026] 5. Leaching top cover; 501. Leaching hole;

[0027] 6. Soldering joint; 601. Threaded joint;

[0028] 7. Water inlet switch;

[0029] 8. Water inlet pipe; 801. Water inlet connector;

[0030] 9. Flow meter;

[0031] 10. Drainage board; 1001. Threaded retaining plate;

[0032] 11. Filter screen. Detailed Implementation

[0033] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0034] Example:

[0035] As attached Figure 1 To be continued Figure 6 As shown:

[0036] This utility model provides an indoor soil column leaching test device for saline-alkali land treatment, including: a support member 1; four sets of positioning rings 2 are provided on the inner side of the support member 1. The positioning rings 2 are conical and can adapt to soil columns of different diameters and sizes, and are suitable for different leaching experiments. A conical filter 4 is supported inside the positioning rings 2. A measuring bucket 3 is connected above the conical filter 4. A leaching top cover 5 is connected above the measuring bucket 3. A leaching connector 6 is connected above the leaching top cover 5. A threaded connector 601 is provided on the rear side of the leaching connector 6. The threaded connector 601 is connected to a water inlet connector 801. A water inlet switch 7 is provided on the water inlet connector 801. A water inlet pipe 8 is connected to the rear side of the water inlet connector 801. A flow meter 9 is provided at the water inlet end of the water inlet pipe 8, which can accurately control the water inlet time of each soil column and precisely control the variables.

[0037] Among them, such as Figure 3 and Figure 5 As shown, a drainage plate 10 is provided inside the conical filter 4, and a drainage hole is provided on the drainage plate 10. A threaded surrounding plate 1001 is provided around the drainage plate 10. A threaded groove 302 is provided inside the lower side of the measuring barrel 3, and the threaded surrounding plate 1001 is placed in the threaded groove 302. By setting the conical filter 4 and the measuring barrel 3 as a detachable structure, it is convenient to clean the measuring barrel 3 after the leaching experiment, so as to avoid affecting the data of the next experiment due to incomplete cleaning. A filter screen 11 is provided at the bottom inside the measuring barrel 3 to prevent soil particles from falling out from the drainage hole. A threaded outer wall 301 is provided on the upper side of the measuring barrel 3.

[0038] Both the measuring bucket 3 and the conical filter 4 are transparent PVC plastic tubes, which facilitates observation of changes in the soil profile.

[0039] The specific usage and function of this embodiment are as follows:

[0040] In this invention, the threaded plate 1001 above the conical filter 4 is screwed into the threaded groove 1001 at the bottom of the test barrel 3, and then placed in the positioning ring 2. Vaseline is applied to the wall of the test barrel 3 to remove the wall effect. The soil sample is loaded into the test barrel 3, and the leaching top cover 5 is screwed to connect it to the test barrel 3. The threaded connector 601 on the leaching connector 6 is forcefully pushed into the water inlet connector 801, and the water inlet pipe 8 and the leaching top cover 5 are connected. A container for collecting leaching liquid is placed under the soil column, and the water inlet pipe 8 is connected to an external water pipe. The leaching of each soil column is carried out by controlling the water inlet switch 7 and observing the flow meter 9.

[0041] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. An indoor soil column leaching test apparatus for saline-alkali land remediation, comprising: Support component (1); characterized in that: the support component (1) is provided with four sets of positioning rings (2) on the inner side, the positioning rings (2) are set as conical, the positioning rings (2) are supported by a conical filter (4), the top of the conical filter (4) is connected to a measuring barrel (3), the top of the measuring barrel (3) is connected to a leaching top cover (5), the top of the leaching top cover (5) is connected to a leaching connector (6), the rear side of the leaching connector (6) is provided with a threaded connector (601), the threaded connector (601) is connected to a water inlet connector (801), the water inlet connector (801) is provided with a water inlet switch (7), the rear side of the water inlet connector (801) is connected to a water inlet pipe (8), and the water inlet end of the water inlet pipe (8) is provided with a flow meter (9).

2. The indoor soil column leaching test apparatus for saline-alkali land treatment as described in claim 1, characterized in that: The conical filter (4) is provided with a drainage plate (10) inside, the drainage plate (10) is provided with drainage holes, and the drainage plate (10) is provided with a threaded surrounding plate (1001) around the periphery.

3. The indoor soil column leaching test apparatus for saline-alkali land treatment as described in claim 1, characterized in that: The measuring barrel (3) has a threaded groove (302) inside its lower side, and a threaded retaining plate (1001) is placed inside the threaded groove (302). A filter screen (11) is provided at the bottom inside the measuring barrel (3), and a threaded outer wall (301) is provided on the upper side of the measuring barrel (3).

4. The indoor soil column leaching test apparatus for saline-alkali land treatment as described in claim 1, characterized in that: The measuring barrel (3) is provided with a leaching top cover (5) on the top. The lower side of the leaching top cover (5) is provided with a threaded inner wall. The upper side of the leaching top cover (5) is provided with a leaching hole (501). The leaching top cover (5) is connected to a leaching connector (6).

5. The indoor soil column leaching test apparatus for saline-alkali land treatment as described in claim 4, characterized in that: Both the measuring barrel (3) and the conical filter (4) are made of transparent PVC plastic.

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