Double-layer HDPE (high-density polyethylene) membrane structure leak detection system for red mud storage yard backwater pool
By adopting a double-layer HDPE membrane structure and leak detection system in the red mud yard return pool, the problem of anti-leakage is solved, and the effective collection and discharge of leaky liquid is achieved, and the membrane structure is protected, reducing the risk of environmental pollution.
Patent Information
- Application Number
- CN202422641459.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Improper anti-seepage measures in the red mud yard return pool may lead to leakage of rinsing water and pollute the surrounding environment.
A double-layer HDPE membrane structure is adopted, including a collection tank, lining, leakage detection tube and leakage detection well between the upper and lower HDPE membranes. The leakage liquid is discharged through the leakage detection well, and is discharged with a lift pump for pressurization, combining the geotextile protective layer and support structure to prevent membrane damage.
Effectively detect and collect leakage liquids, prevent damage to the HDPE membrane, and reduce the impact of red mud rinse water on the environment.
Smart Images
Figure CN223295586U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a double-layer HDPE membrane structure leakage detection system for a red mud dump return pool, belonging to the technical field of pool leakage detection. Background Art
[0002] The red mud dump return water pool is an important facility for collecting red mud dump leaching water. The pH value and content of heavy metals such as lead and cadmium in the red mud leaching water are relatively high. If the anti-seepage measures are not appropriate, the red mud leaching water may leak and cause pollution to the surrounding environment. Summary of the Invention
[0003] In order to solve the above technical problems, the utility model provides a double-layer HDPE membrane structure leak detection system for the red mud dump return water pool, which solves the problem of anti-seepage of the red mud dump return water pool.
[0004] The utility model provides a double-layer HDPE membrane structure leak detection system for a red mud dump return pool, comprising a collection pool arranged between an upper HDPE membrane and a lower HDPE membrane, wherein a lining layer is provided in the collection pool, a leak detection pipe is connected in the lining layer, the leak detection pipe is connected to a leak detection well, and the leak detection well is provided with a drainage pipe.
[0005] Furthermore, a lifting pump is provided in the leak detection well, and the lifting pump is connected to the drainage pipe.
[0006] Furthermore, a support structure is provided at the bottom of the lining layer, and the support structure is arranged above the lower HDPE film.
[0007] Furthermore, a geotextile protective layer is provided on the top of the lining layer, and the geotextile protective layer is arranged below the upper HDPE film.
[0008] Furthermore, a steel mesh is installed on the water inlet side of the leak detection pipe, and the steel mesh is fastened to the leak detection pipe by a steel wire hoop.
[0009] Furthermore, a waterproof pipe sleeve is provided at the connection between the leak detection pipe and the collection tank, and at the connection between the leak detection pipe and the leak detection well.
[0010] By adopting the above technical solution, the utility model has the advantages that: whether the upper HDPE film and the lower HDPE film are leaking can be detected through the collection pool, and the leaked liquid is collected and sent to the leak detection well, and the leaked liquid is discharged from the leak detection well, so as to prevent the leakage from damaging the upper HDPE film and the lower HDPE film, and reduce the impact of the red mud leaching water in the return water pool on the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural diagram of the utility model;
[0012] Figure 2This is a schematic diagram of welding the HDPE film and the leak detection tube;
[0013] In the figure: upper HDPE membrane 1, lower HDPE membrane 2, collection tank 3, liner 4, leak detection pipe 5, leak detection well 6, drainage pipe 7, lift pump 8, support structure 9, geotextile protective layer 10, wire mesh 11, steel wire 12, waterproof pipe sleeve 13, welding plate 14. DETAILED DESCRIPTION
[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described 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, not all of the embodiments.
[0015] In the specification and claims of this utility model, the terms "first," "second," and so on (if any) are used to distinguish similar items, not to describe a specific order or precedence. Even if "second" is used before a technical feature to distinguish it, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. It should be understood that in this utility model, "plurality" refers to two or more items. "And / or" is merely a description of an association between related items, indicating that three possible relationships exist. For example, "X and / or Y" can mean: X exists alone, X and Y exist simultaneously, or Y exists alone. The character " / " generally indicates that the related items are in an "or" relationship. "Including X, Y, and Z" means that all three of X, Y, and Z are included. "Including X, Y, or Z" means that any one of X, Y, or Z is included. "Including X, Y, and / or Z" means that any one, any two, or any three of X, Y, and Z are included.
[0016] like Figure 1 As shown, the utility model provides a double-layer HDPE membrane structure leak detection system for a red mud dump recycle pool, comprising a collecting pool 3 arranged between an upper HDPE membrane 1 and a lower HDPE membrane 2, a lining layer 4 being provided in the collecting pool 3, a leak detection pipe 5 being connected in the lining layer 4, the leak detection pipe 5 being connected to a leak detection well 6, and the leak detection well 6 being provided with a drainage pipe 7.
[0017] The utility model can detect whether the upper HDPE film 1 and the lower HDPE film 2 are leaking through the collection pool 3, and at the same time collect the leaked liquid and send it into the leak detection well 6, which will discharge the leaked liquid, thereby preventing the leaked liquid from damaging the upper HDPE film 1 and the lower HDPE film 2, and reducing the impact of the red mud leaching water in the return water pool on the surrounding environment.
[0018] Among them, a lifting pump 8 is also provided in the leak detection well 6, and the lifting pump 8 is connected to the drain pipe 7. After the leak detection pipe 5 discharges the leaked liquid into the leak detection well 6, the lifting pump 8 will suck the leaked liquid in the leak detection well 6, and pressurize the leaked liquid and then discharge it from the leak detection well 6 through the connected drain pipe 7. The staff can conduct water quality testing based on the leaked liquid discharged from the drain pipe 7, and choose to discharge it into the return water pool or directly discharge it according to the water quality.
[0019] Specifically, the lining layer 4 is mainly composed of pebbles, and a supporting structure 9 is provided at the bottom of the lining layer 4, which is arranged above the lower HDPE film 2. The supporting structure 9 can prevent the pebbles from crushing the lower HDPE film 2; and a geotextile protective layer 10 is provided on the top of the lining layer 4, which is arranged below the upper HDPE film 1. Not only that, in this embodiment, except for the bottom of the lining layer 4, all contact surfaces of the lining layer 4 with the upper HDPE film 1 and the lower HDPE film 2 are provided with a geotextile protective layer 10 for protecting the upper HDPE film 1 and the lower HDPE film 2.
[0020] Among them, in this embodiment, the supporting structure 9 is a geocomposite drainage net with double-sided filtration function, and its thickness is 6.00 mm; the upper HDPE film 1 and the lower HDPE film 2 are both environmentally friendly HDPE smooth films or single rough films, the upper HDPE film 1 has a thickness of 2.00 mm, and the lower HDPE film 2 has a thickness of 1.00 mm.
[0021] Among them, a steel wire mesh 12 is installed on the water inlet side of the leak detection pipe 5. The steel wire mesh 12 is tightened on the leak detection pipe 5 by the steel wire 12. The steel wire mesh 11 can effectively prevent pebbles in the lining 4 from entering the leak detection pipe 5.
[0022] It can be understood that in order to prevent leakage at the installation location of the leak detection tube 5, a waterproof pipe sleeve 13 is provided at the connection between the leak detection tube 5 and the collection tank 3 and at the connection between the leak detection tube 5 and the leak detection well 6 to prevent the leakage from leaking out from the connection and causing damage to the environment, and the waterproof sleeve is a flexible structure.
[0023] In this embodiment, since the leak detection tube 5 needs to extend into the interior of the lining layer 4, the leak detection tube 5 needs to pass through the lower HDPE film 2. The leak detection tube 5 and the lower HDPE film 2 are connected at the perforation by welding, and a welding plate 14 for connection is also provided between the leak detection tube 5 and the lower HDPE film 2.
[0024] In addition to the above-mentioned preferred embodiments, the present invention has other implementation methods. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.
Claims
1. A double-layer HDPE membrane structure leak detection system for a red mud dump recirculation pool, characterized by: The invention comprises a collection pool (3) provided between an upper HDPE film (1) and a lower HDPE film (2), wherein a lining layer (4) is provided in the collection pool (3), a leak detection pipe (5) is connected in the lining layer (4), the leak detection pipe (5) is connected to a leak detection well (6), and the leak detection well (6) is provided with a drainage pipe (7).
2. The double-layer HDPE membrane structure leak detection system for the red mud dump recirculation pool according to claim 1 is characterized by: A lifting pump (8) is also provided in the leak detection well (6), and the lifting pump (8) is connected to the drainage pipe (7).
3. The double-layer HDPE membrane structure leak detection system for the red mud dump recirculation pool according to claim 1 is characterized by: A support structure (9) is provided at the bottom of the lining layer (4), and the support structure (9) is arranged above the lower HDPE film (2).
4. The double-layer HDPE membrane structure leak detection system for the red mud dump recirculation pool according to claim 1 is characterized by: A geotextile protective layer (10) is provided on the top of the lining layer (4), and the geotextile protective layer (10) is provided below the upper HDPE film (1).
5. The double-layer HDPE membrane structure leak detection system for the red mud dump recirculation pool according to claim 1 is characterized by: A steel mesh (11) is installed on the water inlet side of the leak detection pipe (5), and the steel mesh (11) is fastened to the leak detection pipe (5) by a steel wire (12).
6. The double-layer HDPE membrane structure leak detection system for the red mud dump recirculation pool according to claim 1 is characterized by: The connection between the leak detection pipe (5) and the collection tank (3) and the connection between the leak detection pipe (5) and the leak detection well (6) are both provided with waterproof pipe sleeves (13).