Flexible anti-seepage curtain device for polluted site remediation

By using flexible anti-seepage curtain devices in contaminated sites, the existing anti-seepage walls are solved, and the problem of long-term barriers to migration of pollutants, maintaining strength, environmentally friendly and low-cost at the same time, achieving efficient and stable pollutant isolation and long-term use.

CN223017664UActive Publication Date: 2025-06-24SHANGHAI ROCK GEOLOGIC RES INST
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Patent Information

Application Number
CN202422141132.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-02
Publication Date
2025-06-24
Estimated Expiration
2034-09-02

AI Technical Summary

Technical Problem

The existing anti-seepage walls are difficult to meet the requirements of long-term barrier pollutant migration, maintaining strength, environmentally friendly and low-cost.

Method used

The flexible anti-seepage curtain device is adopted, including an anti-seepage layer made of polymer composite materials and a stainless steel reinforcement layer. It is combined with structural design such as limit blocks, sliders, sliding grooves and support columns to ensure that the device effectively blocks the migration of pollutants in the polluted site and maintains the structural stability.

Benefits of technology

It realizes effective anti-seepage protection, can maintain performance unchanged in a strong acid or strong alkali environment for a long time, has high strength and durability, and at the same time reduces the impact of corrosion on the device and extends the service life.

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Abstract

The utility model relates to the technical field of anti-seepage curtains, and discloses a flexible anti-seepage curtain device for polluted site remediation, which comprises an anti-seepage layer, a groove I is formed in the front side of the anti-seepage layer, a reinforcing layer is fixedly connected in the groove I, the top and the bottom of the anti-seepage layer are fixedly connected with corrosion-resistant layers, and the corrosion-resistant layers are fixedly connected with the anti-seepage layer. Frames are fixedly connected to the periphery of the impermeable layer and the periphery of the corrosion-resistant layer, limiting blocks are fixedly connected to the upper portion and the lower portion of the left side of each frame, sliding blocks are fixedly connected to the upper sides and the lower sides of the two limiting blocks, and a plurality of supporting columns are fixedly connected to the front side and the rear side of the interior of each frame at equal intervals. According to the anti-seepage curtain, the corresponding number of anti-seepage curtains are used according to requirements through the limiting blocks fixedly connected to the left side and the sliding grooves formed in the right side, migration of polluted underground water can be effectively blocked, meanwhile, the anti-seepage curtain has certain strength, and the performance of the anti-seepage curtain can be kept unchanged for a long time in a strong acid or strong alkali environment.
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Description

Technical Field

[0001] The utility model relates to the technical field of anti-seepage curtains, in particular to a flexible anti-seepage curtain device for polluted site remediation. Background Art

[0002] With the development of industrialization and urbanization, more and more sites are facing pollution problems. As an important risk control measure, the pollution barrier technology is playing an increasingly important role in quickly enclosing the site and isolating uncontaminated soil. Currently, common anti-seepage materials such as cement-bentonite cut-off walls, although having a certain anti-seepage effect, are subject to corrosion and the influence of microbial activities, which may damage the anti-seepage performance.

[0003] After retrieval, the Chinese patent publication number is: CN218813480U. This utility model discloses a cut-off wall for water conservancy projects, including a first wall body. The first wall body includes a waterproof layer, an anti-corrosion layer, and an anti-deformation layer. The waterproof layer is made of bentonite waterproof blanket material. The anti-corrosion layer is laid on the back of the waterproof layer and is made of epoxy coal tar pitch. Through the waterproof layer made of bentonite waterproof blanket material, since a uniform high-density gel-like substance is formed in the mat when the bentonite waterproof blanket meets water, effectively preventing water leakage, thus achieving the waterproof effect. Through the anti-corrosion layer made of epoxy coal tar pitch material, it further prevents the cut-off wall from being eroded by chemical substances in water for a long time when placed in water, so as to achieve the anti-corrosion effect. Through the anti-deformation layer made of sand and gravel aggregate, the anti-deformation property of the wall body is improved, solving the problem that the surface of the cut-off wall is prone to deformation when suffering from the impact of water for a long time, seriously affecting the service life of the cut-off wall. However, in the actual use process, it is difficult to simultaneously meet the requirements of long-term blocking of pollutant migration, maintaining strength, being environmentally friendly, and having a low cost. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a flexible anti-seepage curtain device for polluted site remediation, aiming to improve the problem that it is difficult to simultaneously meet the requirements of long-term blocking of pollutant migration, maintaining strength, being environmentally friendly, and having a low cost in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical solutions: A flexible anti-seepage curtain device for contaminated site remediation, including an anti-seepage layer, a first groove is opened on the front side of the anti-seepage layer, a strengthening layer is fixedly connected inside the first groove, corrosion-resistant layers are fixedly connected to both the top and the bottom of the anti-seepage layer, frames are fixedly connected to the peripheries of the anti-seepage layer and the corrosion-resistant layers, limiting blocks are fixedly connected to both the upper and lower parts on the left side of the frame, sliders are fixedly connected to both the upper and lower sides of the two limiting blocks, sliding grooves are opened on both the upper and lower parts on the right side of the frame, chutes are opened on both the upper and lower sides inside the two sliding grooves, a plurality of support columns are equidistantly and fixedly connected to the front and rear sides inside the frame, all the support columns penetrate through the anti-seepage layer, and a limiting mechanism is arranged at the bottom of the anti-seepage layer.

[0006] Through the above technical solutions: A flexible anti-seepage curtain device for contaminated site remediation aims to provide effective anti-seepage protection. It includes a main anti-seepage layer, on the front side of which a first groove is opened. Inside the first groove, a strengthening layer is fixedly connected. The function of this strengthening layer is to further enhance the strength of the anti-seepage layer, ensuring that the anti-seepage layer can maintain its integrity when facing various pollutants. Corrosion-resistant layers are fixedly connected to both the top and the bottom of the anti-seepage layer. The existence of these corrosion-resistant layers is to deal with the corrosive substances that may exist in the contaminated site, ensuring that the entire device can maintain its performance in a harsh environment. The corrosion-resistant layers are to minimize the impact of corrosion on the device, thereby extending its service life. To further enhance the overall structural stability of the device, frames are fixedly connected to the peripheries of the anti-seepage layer and the corrosion-resistant layers. These frames not only play a role in fixing and supporting, but also on the upper and lower parts on the left side of the frame, limiting blocks are fixedly connected. The function of these limiting blocks is to limit the movement range of the device during installation and use. The design of the limiting blocks takes into account the accuracy and reliability in actual operation, ensuring that the device can remain in the predetermined position under various circumstances. Sliders are fixedly connected to both the upper and lower sides of the two limiting blocks. The design of the sliders is to enable smooth movement when the device needs to be adjusted, reducing friction and wear. Sliding grooves are opened on both the upper and lower parts on the right side of the frame. The design of these sliding grooves is to cooperate with the movement of the sliders to provide a smooth movement path. Chutes are opened on both the upper and lower sides inside the sliding grooves. These chutes further optimize the movement of the sliders, ensuring that the device can remain stable and smooth during the adjustment process. To further enhance the support capacity of the device, a plurality of support columns are equidistantly and fixedly connected to the front and rear sides inside the frame. These support columns penetrate through the anti-seepage layer, providing additional structural support to ensure that the entire device can still remain stable when facing heavy pressure.

[0007] As a further description of the above technical solutions:

[0008] The limiting mechanism includes L-shaped plates, and the two L-shaped plates are respectively fixedly connected to the front and rear sides of the left end of the bottom of the frame. Limiting holes are provided at the bottoms of the two L-shaped plates. Connecting plates are fixedly connected to the front and rear sides of the right bottom of the frame. Limiting grooves are provided on the right sides of the two connecting plates. Reserved holes are provided at the bottoms of the two connecting plates. Limiting bolts are rotatably connected to the bottoms of the two connecting plates.

[0009] Through the above technical solution: The design of the limiting mechanism includes two L-shaped plates, which are respectively fixedly connected to the front and rear sides of the left end of the bottom of the frame. In order to ensure the stability and reliability of the limiting mechanism, limiting holes are provided at the bottoms of the two L-shaped plates. These connecting plates not only play a connecting role, but also have limiting grooves on their right sides for precise cooperation with other components. Reserved holes are also provided at their bottoms for necessary adjustment and fixation. Finally, in order to achieve fine adjustment of the limiting mechanism, limiting bolts are rotatably connected to the bottoms of the two connecting plates, and these bolts can fix the positions of the connecting plates.

[0010] As a further description of the above technical solution:

[0011] A second groove is provided at the top of the right end of the frame, and a scale is fixedly connected inside the second groove.

[0012] Through the above technical solution: At the top of the right end of the frame, a second groove is provided for accommodating and fixedly connecting a scale. The scale can facilitate reading and measurement, and at the same time maintain a tight combination with the frame.

[0013] As a further description of the above technical solution:

[0014] A water seepage monitor is fixedly connected to the top of the left end of the frame, and the water seepage monitor can monitor whether the anti-seepage layer is permeable.

[0015] Through the above technical solution: At the top of the left end of the frame, a water seepage monitor is firmly connected. This water seepage monitor has a monitoring function and can detect in real time whether the anti-seepage layer has a seepage phenomenon.

[0016] As a further description of the above technical solution:

[0017] The anti-seepage layer is made of a polymer composite material, and the reinforcing layer is made of stainless steel.

[0018] Through the above technical solution: the anti-seepage layer is made of a high-performance polymer composite material, which has excellent anti-leakage performance and durability, and can effectively prevent the penetration of liquid or gas, while the reinforcement layer is made of stainless steel material, which has excellent strength and corrosion resistance, and can provide solid support and protection for the overall structure.

[0019] As a further description of the above technical solution:

[0020] The size of the limit block is consistent with that of the sliding groove, and the plurality of sliding blocks slide inside the corresponding sliding grooves.

[0021] Through the above technical solution: the size of the limit block is completely consistent with the sliding groove, ensuring that the two can fit closely, and multiple sliders can slide smoothly inside their corresponding sliding grooves.

[0022] As a further description of the above technical solution:

[0023] The top end of the limiting bolt passes through the connecting plate and the L-shaped plate in sequence, and the size of the limiting bolt is consistent with that of the limiting hole.

[0024] Through the above technical solution: the top part of the limiting bolt passes through the connecting plate and the L-shaped plate in sequence to ensure a tight connection between the two. The size of these limiting bolts is completely consistent with the size of the limiting holes, thereby ensuring that the bolts can be accurately inserted into the holes to achieve their limiting function.

[0025] The utility model has the following beneficial effects:

[0026] 1. In the utility model, an anti-seepage curtain is formed by adopting an anti-seepage layer of a polymer composite material and a stainless steel reinforcement layer. A corresponding number of anti-seepage curtains can be used according to demand through a limit block fixedly connected on the left side and a sliding groove opened on the right side. It can effectively block the migration of contaminated groundwater and has a certain strength, and can maintain unchanged performance for a long time in a strong acid or strong alkali environment.

[0027] 2. In the utility model, the L-shaped plate is inserted into the limiting groove, so that the limiting bolt passes through the L-shaped plate and the connecting plate in sequence, and the L-shaped plate is limited, so that the anti-seepage curtain will not move. The installation and disassembly are simple, convenient for the staff to use, and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional diagram of a flexible anti-seepage curtain device for contaminated site restoration proposed by the utility model;

[0029] Figure 2 This is a left view of the structure of a flexible anti-seepage curtain device for contaminated site restoration proposed by the utility model;

[0030] Figure 3 Structural exploded view of the limiting mechanism of a flexible anti-seepage curtain device for contaminated site remediation proposed by the present utility model;

[0031] Figure 4 Structural exploded view of the anti-seepage layer of a flexible anti-seepage curtain device for contaminated site remediation proposed by the present utility model;

[0032] Figure 5 Structural cross-sectional view of a flexible anti-seepage curtain device for contaminated site remediation proposed by the present utility model.

[0033] Legend description:

[0034] 1. Anti-seepage layer; 2. Limiting mechanism; 201. L-shaped plate; 202. Limiting hole; 203. Connecting plate; 204. Limiting groove; 205. Reserved hole; 206. Limiting bolt; 3. First groove; 4. Reinforcing layer; 5. Corrosion-resistant layer; 6. Frame; 7. Limiting block; 8. Slide block; 9. Sliding groove; 10. Chute; 11. Support column; 12. Second groove; 13. Scale; 14. Seepage monitor. Specific implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] Refer to Figure 1 、 Figure 2 and Figure 4 , an embodiment provided by the present utility model: a flexible anti-seepage curtain device for contaminated site remediation, including an anti-seepage layer 1. A first groove 3 is opened on the front side of the anti-seepage layer 1. A reinforcing layer 4 is fixedly connected inside the first groove 3. Corrosion-resistant layers 5 are fixedly connected to both the top and bottom of the anti-seepage layer 1. Frames 6 are fixedly connected to the peripheries of the anti-seepage layer 1 and the corrosion-resistant layers 5. Limiting blocks 7 are fixedly connected to the upper and lower parts on the left side of the frame 6. Slide blocks 8 are fixedly connected to the upper and lower sides of the two limiting blocks 7. Sliding grooves 9 are opened on the upper and lower parts on the right side of the frame 6. Chutes 10 are opened on the upper and lower sides inside the two sliding grooves 9. A plurality of support columns 11 are equidistantly and fixedly connected to the front and rear sides inside the frame 6. The plurality of support columns 11 all penetrate through the anti-seepage layer 1. A limiting mechanism 2 is arranged at the bottom of the anti-seepage layer 1. The anti-seepage layer 1 is made of a polymer composite material, and the reinforcing layer 4 is made of stainless steel;

[0037] Specifically, align the limit block 7 on the left side of the frame 6 precisely with the sliding groove 9 on the right side of the frame 6 to ensure that the limit block 7 can be accurately inserted into the sliding groove 9. At the same time, the sliders 8 on both sides of the limit block 7 should slide smoothly within the corresponding sliding grooves 10 so that the limit block 7 can enter the sliding groove 9 without obstruction. The corrosion-resistant layer 5 effectively protects the anti-seepage layer 1, reducing corrosion and extending its service life. Meanwhile, the anti-seepage layer 1 prevents the outflow of pollutants in the field. At this time, the strengthening layer 4 plays a role in supporting and forming the anti-seepage layer 1 to prevent the anti-seepage layer 1 from folding or skewing, and the support column 11 provides support for the frame 6 to prevent the top object from deforming the anti-seepage layer 1 under pressure.

[0038] Refer to Figure 3 and Figure 5 The limiting mechanism 2 includes L-shaped plates 201. The two L-shaped plates 201 are respectively fixedly connected to the front and rear sides of the left end of the bottom of the frame 6. Limiting holes 202 are provided at the bottoms of the two L-shaped plates 201. Connecting plates 203 are fixedly connected to the front and rear sides of the right bottom of the frame 6. Limiting grooves 204 are provided on the right sides of the two connecting plates 203. Reserved holes 205 are provided at the bottoms of the two connecting plates 203. Limiting bolts 206 are rotatably connected to the bottoms of the two connecting plates 203.

[0039] Specifically, after the limit block 7 is placed into the sliding groove 9, the L-shaped plate 201 will also be inserted into the limiting groove 204 provided on the right side of the connecting plate 203. Subsequently, rotate the limiting bolt 206 at the bottom of the connecting plate 203 so that the limiting bolt 206 sequentially penetrates through the connecting plate 203 and the reserved hole 205, thereby realizing the limiting and fixing of the connecting plate 203 and the L-shaped plate 201.

[0040] Refer to Figure 1 and Figure 2 A second groove 12 is provided at the top right end of the frame 6. A scale 13 is fixedly connected inside the second groove 12. A seepage monitor 14 is fixedly connected to the top left end of the frame 6. The seepage monitor 14 can monitor whether the anti-seepage layer 1 is permeable.

[0041] Specifically, the scale 13 can observe the depth at which the anti-seepage curtain is buried, and the seepage monitor 14 can detect in real time whether the anti-seepage layer 1 shows a permeation phenomenon.

[0042] Refer to Figure 3 The limit block 7 is of the same size as the sliding groove 9. Multiple sliders 8 slide inside the corresponding sliding grooves 10. The top end of the limiting bolt 206 sequentially penetrates through the connecting plate 203 and the L-shaped plate 201. The limiting bolt 206 is of the same size as the limiting hole 202.

[0043] Specifically, the sizes of the limit block 7 and the sliding groove 9 are consistent, which enables the limit block 7 to slide more stably in the sliding groove 9 without wobbling. The sizes of the limit bolt 206 and the limit hole 202 are consistent, which enables the L-shaped plate 201 and the connecting plate 203 to be fixed more stably.

[0044] Working principle: When using the flexible anti-seepage curtain device, it is necessary to first excavate a trench around the contaminated site and lay the flexible anti-seepage curtain device in the trench. Connect the corresponding number of curtain devices according to the length of the trench. At this time, align the limit block 7 on the left side of the frame 6 with the sliding groove 9 on the right side of the frame 6, so that the limit block 7 can accurately insert into the sliding groove 9. At the same time, the sliders 8 on both sides of the limit block 7 can slide inside the corresponding sliding grooves 10, enabling the limit block 7 to smoothly enter the sliding groove 9. At this time, the corrosion-resistant layer 5 can effectively protect the anti-seepage layer 1 from corrosion and extend its service life. At the same time, the anti-seepage layer 1 prevents the pollution in the contaminated site from flowing out. At this time, the reinforcing layer 4 plays a role in supporting and forming the anti-seepage layer 1 to prevent the anti-seepage layer 1 from folding and skewing. At this time, the support column 11 supports the frame 6 to prevent the anti-seepage layer 1 from being deformed by an object on the top. And after the limit block 7 is inserted into the sliding groove 9, the L-shaped plate 201 will also be inserted into the limit groove 204 opened on the right side of the corresponding connecting plate 203. At this time, rotate the limit bolt 206 at the bottom of the connecting plate 203 so that the limit bolt 206 sequentially passes through the connecting plate 203 and the reserved hole 205, and at this time, the connecting plate 203 and the L-shaped plate 201 are limited and fixed.

[0045] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flexible anti-seepage curtain device for contaminated site remediation, comprising an anti-seepage layer (1), characterized in that: The front side of the anti-seepage layer (1) is provided with a groove 1 (3), the interior of the groove 1 (3) is fixedly connected with a reinforcement layer (4), the top and bottom of the anti-seepage layer (1) are fixedly connected with a corrosion-resistant layer (5), the anti-seepage layer (1) and the corrosion-resistant layer (5) are fixedly connected with a frame (6) on all sides, the upper and lower parts of the left side of the frame (6) are fixedly connected with a limiting block (7), the upper and lower sides of the two limiting blocks (7) are fixedly connected with a slider (8), the upper and lower parts of the right side of the frame (6) are provided with a sliding groove (9), the upper and lower sides of the two sliding grooves (9) are provided with a sliding groove (10), the front and rear sides of the interior of the frame (6) are fixedly connected with a plurality of support columns (11) at equal intervals, the plurality of support columns (11) all penetrate the anti-seepage layer (1), and a limiting mechanism (2) is provided at the bottom of the anti-seepage layer (1).

2. A flexible anti-seepage curtain device for contaminated site remediation according to claim 1, characterized in that: The limiting mechanism (2) comprises an L-shaped plate (201), wherein the two L-shaped plates (201) are respectively fixedly connected to the front and rear sides of the left bottom end of the frame (6), the bottoms of the two L-shaped plates (201) are provided with limiting holes (202), the front and rear sides of the right bottom of the frame (6) are fixedly connected with connecting plates (203), the right sides of the two connecting plates (203) are provided with limiting grooves (204), the bottoms of the two connecting plates (203) are provided with reserved holes (205), and the bottoms of the two connecting plates (203) are rotatably connected with limiting bolts (206).

3. A flexible anti-seepage curtain device for contaminated site remediation according to claim 1, characterized in that: A second groove (12) is provided at the top of the right end of the frame (6), and a scale (13) is fixedly connected inside the second groove (12).

4. The flexible anti-seepage curtain device for contaminated site remediation according to claim 1, characterized in that: A water seepage monitor (14) is fixedly connected to the top of the left end of the frame (6), and the water seepage monitor (14) is capable of monitoring whether the anti-seepage layer (1) has seeped through.

5. The flexible anti-seepage curtain device for contaminated site remediation according to claim 1, characterized in that: The anti-seepage layer (1) is made of a polymer composite material, and the reinforcement layer (4) is made of stainless steel.

6. The flexible anti-seepage curtain device for contaminated site remediation according to claim 1, characterized in that: The size of the limit block (7) is consistent with that of the sliding groove (9), and the plurality of sliding blocks (8) slide inside the corresponding sliding grooves (10).

7. The flexible anti-seepage curtain device for contaminated site remediation according to claim 2, characterized in that: The top end of the limiting bolt (206) passes through the connecting plate (203) and the L-shaped plate (201) in sequence, and the size of the limiting bolt (206) is consistent with that of the limiting hole (202).

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