In-situ contaminated soil leaching device

Abstract

The in-situ contaminated soil leaching device comprises a supporting plate, an inserting rod and a leaching liquid box, the outer side of the leaching liquid box is connected with a leaching pipe through a pump body, the upper end of the supporting plate is provided with an inserting opening in a penetrating mode, the inserting opening is convenient for the inserting rod to be movably connected in an inserting mode, and the upper end of the inserting rod is fixedly connected with two sets of symmetrical fixing plates. A threaded rod is rotationally connected between the fixing plates, threads in opposite directions are arranged on the outer side of the threaded rod, the threaded rod is in threaded sleeve connection with mounting blocks through the threads in the opposite directions on the outer side, multiple sets of nozzles are fixedly connected to the outer sides of the mounting blocks, and multiple sets of openings in butt joint with the nozzles are formed in the outer side of an inserting rod; and the nozzle is communicated with the leaching pipe through a branch pipe. The plug-in rod extends into the soil, leacheate is injected into the plug-in rod, the heavy metal ion concentration and organic pollution in the soil are effectively reduced, the whole process can be directly carried out in situ in the soil, the operation is simple, and the practical effect is more obvious.

Description

Technical Field

[0001] The utility model relates to the field of soil pollution control, in particular to an in-situ contaminated soil leaching device. Background Art

[0002] The soils upon which humans depend for survival are facing an increasingly prominent problem of heavy metal contamination. Heavy metal levels in crops have repeatedly exceeded permitted levels. Heavy metals are metabolized slowly by the human body, leading to increasing concentrations of these metals. Of course, soil contamination isn't limited to heavy metals; organic matter is also a significant source. Therefore, leaching is used in soil pollution remediation, as it is suitable for the rapid remediation of soil and sediments contaminated by high concentrations of heavy metals and organic matter.

[0003] At present, the leaching method is to flush the soil with a leaching liquid to migrate the mobile heavy metal ions and organic pollutants in the soil out of the soil along with the leaching liquid. However, the traditional treatment method is to treat the soil ex situ and cannot perform leaching in situ. After ex situ leaching, the soil needs to be backfilled, which requires a lot of manpower and material resources. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art mentioned in the background technology and to propose an in-situ contaminated soil leaching device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An in-situ contaminated soil elution device comprises a support plate, a plug-in rod and a elution liquid tank. The outside of the elution liquid tank is connected to a elution pipe through a pump body. A plug-in interface for facilitating the movable insertion of the plug-in rod is provided through the upper end of the support plate. Two groups of symmetrical fixed plates are fixedly connected to the upper end of the plug-in rod. A threaded rod is rotatably connected between the fixed plates. The outer sides of the threaded rods are provided with threads in opposite directions, and the threaded rods are respectively threadedly sleeved with mounting blocks through threads in opposite directions on the outer sides. Multiple groups of nozzles are fixedly connected to the outer sides of the mounting blocks. Multiple groups of openings docking with the nozzles are provided on the outer sides of the plug-in rods, and the nozzles are connected to the elution pipe through branch pipes.

[0007] Preferably, a treading groove is provided on the upper end of the support plate, and a rubber pad is provided on the inner wall of the treading groove.

[0008] Preferably, an upper end of the plug interface is rotatably connected to an adjusting sleeve, the adjusting sleeve is threadedly sleeved on the outer side of the plug rod, and a handle is fixedly connected to the outer side of the adjusting sleeve.

[0009] Preferably, a pointed cone is fixedly connected to the bottom of the plug rod, a limiting groove is longitudinally provided on the outer wall of the plug rod, and a limiting block that is clamped in the limiting groove is fixedly connected to the inner wall of the plug interface.

[0010] Preferably, a limiting rod is fixedly connected between the fixing plates, and the limiting rod movably passes through the mounting block.

[0011] Preferably, the outer side of the nozzle is designed as a conical structure, and a knife edge is fixedly connected to the outer inclined surface of the nozzle.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model supports the ground through a support plate, and then cooperates with an adjustment sleeve and a connecting structure to drive the plug-in rod to be plugged into the in-situ contaminated soil. Subsequently, the transmission structure drives two sets of mounting plates to drive the outer nozzles to extend from the openings on the outer sides of the plug-in rod and connect to the soil inside on both sides, thereby injecting the eluent therein and effectively reducing the concentration of heavy metal ions and organic pollution in the soil. The whole process can be carried out directly on the soil in situ, is simple to operate, and has more obvious practical effects. It is worthy of promotion and use in the existing market. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a top view of the plug-in rod structure of the utility model;

[0016] Figure 3 It is a side view schematic diagram of the nozzle structure of the present utility model.

[0017] In the figure: 1-support plate, 101-treadle groove, 2-plug interface, 201-adjustment sleeve, 202-handle, 3-plug rod, 301-cone, 302-limiting groove, 4-fixing plate, 5-threaded rod, 6-mounting block, 601-limiting rod, 7-nozzle, 701-knife edge, 8-branch pipe, 9-rinsing pipe, 10-opening. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In the description of the present invention, “plurality” means two or more, unless otherwise clearly defined.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-3 , an in-situ contaminated soil elution device, comprising a support plate 1, a connecting rod 3 and a elution liquid tank, the outside of the elution liquid tank is connected to a elution pipe 9 through a pump body, the upper end of the support plate 1 is penetrated by a plug interface 2 for convenient plugging of the connecting rod 3, the upper end of the connecting rod 3 is fixedly connected to two groups of symmetrical fixing plates 4, the fixing plates 4 are rotatably connected with threaded rods 5, the outer sides of the threaded rods 5 are provided with threads in opposite directions, and the threaded rods 5 are respectively threadedly sleeved with mounting blocks 6 through threads in opposite directions on the outer sides, the outer sides of the mounting blocks 6 are fixedly connected with multiple groups of nozzles 7, the outer side of the connecting rod 3 is provided with multiple groups of openings 10 docking with the nozzles 7, and the nozzles 7 are connected to the elution pipe 9 through branch pipes 8.

[0023] Among them, a treading groove 101 is provided at the upper end of the support plate 1, and a rubber pad is provided on the inner wall of the treading groove 101. The upper end of the plug interface 2 is rotatably connected to an adjusting sleeve 201, and the adjusting sleeve 201 is threadedly sleeved on the outside of the plug rod 3. The outside of the adjusting sleeve 201 is fixedly connected to a handle 202, and a pointed cone 301 is fixedly connected to the bottom of the plug rod 3. A limiting groove 302 is longitudinally provided on the outer wall of the plug rod 3, and a limiting block that is clamped in the limiting groove 302 is fixedly connected to the inner wall of the plug interface 2. A limiting rod 601 is also fixedly connected between the fixing plates 4, and the limiting rod 601 movably passes through the mounting block 6. The outer side of the nozzle 7 is designed with a conical structure, and the outer inclined surface of the nozzle 7 is fixedly connected with a knife edge 701.

[0024] Based on the above structure, when using this device, the staff will place the support plate 1 on the ground and step on the tread groove 101 at the upper end with their feet. Then, they will rotate the adjustment sleeve 201 through the handle 202. The adjustment sleeve 201 will threadably drive the plug rod 3. Due to the engagement between the limit groove 302 on the outer wall of the plug rod 3 and the limit block on the inner wall of the plug interface 2, the adjustment sleeve 201 will drive the plug rod 3 to slide longitudinally. The pointed cone 301 at the bottom of the plug rod 3 will be inserted into the ground and continue to be inserted into the ground as the adjustment sleeve 201 rotates until it is fully inserted. Then, the threaded rod 5 will be rotated, and the two sets of mounting blocks 6 will be driven to slide relative to each other along the limit rod 601 using the threads on the outside in opposite directions. Then, the nozzle 7 on the outside of the mounting block 6 will be pushed out from the opening 10 on the outside of the plug rod 3. The outer conical structure of the nozzle 7 is designed to match the sharp blade edge 701 on the outer wall, so that it can smoothly extend from the opening 10 and be inserted into the contaminated soil. Then, the pump body of the eluent tank is started by an external switch. The pump body extracts the eluent inside the eluent tank through the pipeline, passes through the eluent pipe 9, and is diverted to the branch pipe 8, and finally sprayed out from the nozzle 7, thereby flushing the eluent into the soil to treat the contaminated soil. There is no need to move the soil, and the operation can be carried out directly in situ, which is very convenient to operate.

[0025] The above embodiments are preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

Claims

1. An in-situ contaminated soil elution device, comprising a support plate (1), a plug-in rod (3) and an elution liquid tank, wherein the outer side of the elution liquid tank is connected to an elution pipe (9) through a pump body, and is characterized in that: The upper end of the support plate (1) is provided with an insertion port (2) for facilitating the movable insertion of the insertion rod (3), the upper end of the insertion rod (3) is fixedly connected with two groups of symmetrical fixing plates (4), and the fixing plates (4) are rotatably connected with a threaded rod (5), the outer side of the threaded rod (5) is provided with threads in opposite directions, and the threaded rod (5) is respectively threadedly sleeved with a mounting block (6) through the threads in opposite directions on the outer side, the outer side of the mounting block (6) is fixedly connected with multiple groups of nozzles (7), the outer side of the insertion rod (3) is provided with multiple groups of openings (10) that are connected to the nozzles (7), and the nozzles (7) are connected to the rinsing pipe (9) through the branch pipe (8).

2. The in-situ contaminated soil washing device according to claim 1, characterized in that: The upper end of the support plate (1) is provided with a treading groove (101), and the inner wall of the treading groove (101) is provided with a rubber pad.

3. The in-situ contaminated soil washing device according to claim 2, characterized in that: The upper end of the plug interface (2) is rotatably connected to an adjustment sleeve (201), the adjustment sleeve (201) is threadedly sleeved on the outside of the plug rod (3), and the outside of the adjustment sleeve (201) is fixedly connected to a handle (202).

4. The in-situ contaminated soil washing device according to claim 3, characterized in that: The bottom of the plug rod (3) is fixedly connected to a pointed cone (301), the outer wall of the plug rod (3) is longitudinally provided with a limiting groove (302), and the inner wall of the plug interface (2) is fixedly connected to a limiting block that is clamped in the limiting groove (302).

5. The in-situ contaminated soil washing device according to claim 4, characterized in that: A limiting rod (601) is also fixedly connected between the fixing plates (4), and the limiting rod (601) movably passes through the mounting block (6).

6. The in-situ contaminated soil washing device according to claim 5, characterized in that: The outer side of the nozzle (7) is designed as a conical structure, and a knife edge (701) is fixedly connected to the outer inclined surface of the nozzle (7).

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