Flexible water collecting tank system for coal mine area

Abstract

The invention discloses a flexible water collecting tank system for a coal mine area, the flexible water collecting tank system for the coal mine area comprises a first drainage assembly, a second drainage assembly, a precipitation assembly and a first grass planting ditch, at least part of the first drainage assembly is suitable for being arranged on a slope top of a mining area, and the second drainage assembly is suitable for being arranged on a slope toe of the mining area; the first drainage assembly is communicated with the second drainage assembly, at least one of the first drainage assembly and the second drainage assembly is an ecological bag drainage ditch, the ecological bag drainage ditch is used for reducing the flow velocity of water in the first drainage assembly and the second drainage assembly, and the precipitation assembly is communicated with the other end of the second drainage assembly. The first grass planting ditch is suitable for being arranged on the crippling foot of the mining area and located on the side, away from the mining area, of the second drainage assembly, the first grass planting ditch extends in the length direction of the second drainage assembly, and green plants are arranged in the first grass planting ditch. The flexible water collecting tank system for the coal mine area has the advantages of being simple in structure, high in sedimentation efficiency and the like.

Description

Technical Field

[0001] This invention relates to the field of dredging technology, specifically a flexible water collection pool system for coal mining areas. Background Technology

[0002] A flexible water tank is a type of water tank that uses flexible waterproof materials for waterproofing. The most common form is the bentonite waterproof blanket tank. This type of tank has a relatively simple construction, mainly involving laying a layer of bentonite waterproof blanket on a compacted foundation, and then covering it with soil or pebbles and gravel. The emergence of flexible water tanks aligns with the development of new building materials technologies, resulting in more complete waterproofing of the tank walls. Because flexible materials such as bentonite waterproof blankets are not easily damaged, their construction is very simple and does not require additional protective measures. However, due to the accumulation of silt inside the flexible water collection tank over time, internal silt removal is necessary.

[0003] In related technologies, the sludge removal device for the pool has poor cleaning efficiency and a short lifespan. Summary of the Invention

[0004] This invention is based on the inventor's discoveries and understanding of the following facts and problems:

[0005] In related technologies, most pool cleaning relies on scrapers and other devices, which are rigid and easily scratch the interior of flexible collection pools, affecting the pool's lifespan. A search revealed a pool cleaning device disclosed in Chinese Patent Publication No. CN218175962U, which includes a mobile trolley, water gun assembly, and pump suction assembly. While simple to operate and with a wide cleaning range, it requires draining the pool and manual pushing, increasing workload and cost. A sewage pump station collection pool cleaning device disclosed in Chinese Patent Publication No. CN220486712U uses a scraper to reciprocate and clean sludge; however, when the scraper moves to the pool wall, it squeezes the sludge, causing it to adhere to the inner wall and corners, resulting in incomplete cleaning.

[0006] The present invention aims to at least partially solve one of the technical problems in the related art.

[0007] Therefore, embodiments of the present invention propose a flexible water collection pool system for coal mining areas that has high cleaning efficiency and long service life.

[0008] A flexible water collection pool system for a coal mining area according to an embodiment of the present invention includes: a first drainage component, at least a portion of which is adapted to be disposed on the top of a slope in the mining area, the first drainage component being used to drain rainwater or water accumulated on the top of the slope; a second drainage component, adapted to be disposed on the foot of the slope in the mining area, the first drainage component and the second drainage component being connected so that water in the first drainage component flows into the second drainage component, at least one of the first drainage component and the second drainage component being an ecological bag drainage ditch, the ecological bag drainage ditch being used to reduce the flow rate of water in the first drainage component and the second drainage component, so as to reduce dust in the water in the first drainage component and the second drainage component; a sedimentation component, the sedimentation component being connected to the second drainage component so that water in the second drainage component flows into the sedimentation component for sedimentation; and a first grassed ditch, adapted to be disposed on the foot of the mining area and located on the side of the second drainage component away from the mining area, the first grassed ditch extending along the length direction of the second drainage component and containing green plants, the first grassed ditch being used to intercept and filter water discharged from the second drainage component.

[0009] This invention relates to a flexible water collection pool system for coal mining areas, comprising an ecological bag drainage ditch, a first grassed ditch, and a sedimentation component. The ecological bag drainage ditch intercepts cement and sand coming from the slope and promotes the sedimentation of fine sand, which, in conjunction with the stilling basin, prevents downstream erosion. The first grassed ditch intercepts and filters surface runoff pollutants, stabilizes the soil, absorbs and transforms harmful substances, and purifies the water. The sedimentation component reduces dust, prevents silt from entering the water collection area, ensures the cleanliness of the pool, eliminates the need for cleaning, and extends its service life.

[0010] In some embodiments, the first drainage component includes a first drainage ditch and a second drainage ditch. The first drainage ditch is adapted to be located on the top of the mining area slope, and the second drainage ditch is adapted to be located on the slope of the mining area. The first drainage ditch is used to drain rainwater or water accumulated on the top of the slope. The upper and lower ends of the second drainage ditch are respectively connected to the first drainage ditch and the second drainage component so that water in the first drainage ditch flows into the second drainage component through the second drainage ditch. Both the first drainage ditch and the second drainage ditch are the drainage ditches of the ecological bag.

[0011] In some embodiments, the first drainage assembly further includes a rainwater collection pool and a first connecting pipe. The rainwater collection pool is adapted to be located on the top of the slope of the mining area. The rainwater collection pool is used to collect rainwater at the upper end of the slope of the mining area. The rainwater collection pool is connected to the first drainage ditch and the second drainage ditch respectively through the first connecting pipe, so that water in the first drainage ditch flows into the second drainage ditch through the rainwater collection pool.

[0012] In some embodiments, the flexible water collection pool system for coal mining areas further includes a retaining wall adapted to be located on the top of the slope of the mining area and on the side of the first drainage ditch adjacent to the second drainage ditch. The retaining wall extends along the length of the first drainage ditch and is used to prevent water from overflowing from the first drainage ditch.

[0013] In some embodiments, in a projection plane orthogonal to the width direction of the first drainage component, the projection of the first drainage ditch is located within the retaining wall, and the second drainage component is located within the first grassed ditch.

[0014] In some embodiments, the flexible water collection pool system for coal mining areas further includes a stilling pool and a second connecting pipe. The stilling pool is adapted to be located at the toe of the slope in the mining area and is connected to the first drainage component and the second drainage component respectively through the second connecting pipe, so that water in the first drainage component flows into the second drainage component through the stilling pool.

[0015] In some embodiments, the cross-sectional area of ​​the inner circumferential surface of the ecological bag drainage ditch gradually increases from bottom to top. The ecological bag drainage ditch includes a ditch body and a plurality of ecological bags. The ditch body includes a first sidewall, a second sidewall, and a bottom wall. The two sides of the bottom wall are respectively connected to the first sidewall and the second sidewall. The first sidewall extends from bottom to top and is inclined in a direction away from the second sidewall. The second sidewall extends from bottom to top and is inclined in a direction away from the first sidewall. The plurality of ecological bags are disposed in the ditch body and are arranged sequentially along the circumference of the ditch body.

[0016] In some embodiments, the flexible water collection pool system for coal mining areas further includes a second grassed swale, which is adapted to be located on the toe of the mining area slope and contains green plants. The second grassed swale is located between the second drainage component and the sedimentation component and is connected to both the second drainage component and the sedimentation component, so that water in the second drainage component flows into the sedimentation component through the second grassed swale. In the projection plane orthogonal to the second drainage component, the projection of the second drainage component is located in the second grassed swale.

[0017] In some embodiments, both the first and second grassed swales are lined with an impermeable membrane, which contains a gravel layer and a backfill soil layer, and the green plants are planted in the backfill soil layer.

[0018] In some embodiments, the sedimentation assembly includes a sedimentation tank, a sedimentation well, and a collection tank. The sedimentation well is disposed within the sedimentation tank and extends downward from the bottom of the sedimentation tank. The sedimentation well is connected to a second drainage assembly so that water in the second drainage assembly flows into the sedimentation well for sedimentation and water in the sedimentation well flows into the sedimentation tank for sedimentation. The collection tank is connected to the sedimentation tank so that water in the sedimentation tank flows into the sedimentation tank. The upper end of the sedimentation well is higher than the upper end of the sedimentation tank, and the sedimented water in the sedimentation well flows into the sedimentation tank.

[0019] This invention provides a flexible water collection pool system for coal mining areas, which includes a first drainage component and a second drainage component. The first drainage component collects rainfall and directs it downstream for rainwater harvesting and utilization. Under conditions of heavy rainfall, it can quickly collect rainwater runoff and disperse it downstream, making it less likely to cause water accumulation on the slope top and reducing the risk of rainwater-related geological disasters. Through long-distance water interception, the sediment carried by the rainfall can be intercepted and retained by the ecological bags, and the drainage ditches of the ecological bags can collect the drainage and further intercept and retain sediment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an intelligent flexible water collection tank for coal mining areas according to an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 A magnified view of part A in the image.

[0022] Figure 3 yes Figure 1 A magnified view of part B in the image.

[0023] Figure 4 This is a schematic diagram of the ecological bag drainage ditch of the intelligent flexible water collection pool for coal mining areas according to an embodiment of the present invention.

[0024] Figure 5 This is a schematic diagram of the first grassed ditch of an intelligent flexible water collection pool for a coal mining area according to an embodiment of the present invention.

[0025] 100. Intelligent flexible water collection pool for coal mining areas; 1. First drainage component; 11. First drainage ditch; 12. Second drainage ditch; 13. Rainwater collection pool; 14. First connecting pipe; 15. Ditch body; 151. First side wall; 152. Second side wall; 153. Bottom wall; 16. Ecological bag; 2. Second drainage component; 3. Sedimentation component; 31. Sedimentation pool; 32. Sedimentation well; 33. Water collection pool; 4. First grassed swale; 41. Crushed stone layer; 42. Backfill soil layer; 43. Anchoring ditch; 44. Anchor bolt; 5. Water retaining wall; 6. Stilling basin; 7. Second connecting pipe; 8. Mine area slope; 9. Second grassed swale. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] The following description, with reference to the accompanying drawings, describes an intelligent flexible water collection tank 100 system for coal mining areas according to an embodiment of the present invention.

[0028] like Figures 1-5 As shown, the intelligent flexible water collection pool 100 system for coal mining areas according to an embodiment of the present invention includes a first drainage component 1, a second drainage component 2, a sedimentation component 3, and a first grass-covered ditch 4.

[0029] At least a portion of the first drainage component 1 is adapted to be installed on the top of a slope in the mining area. The first drainage component 1 is used to drain rainwater or water accumulated on the top of the slope. Specifically, as Figure 1 As shown, the first drainage component 1 is installed in the mining area. One part of the first drainage component 1 is installed on the top of the slope, and the other part is installed on the slope surface. This allows water in the top of the slope to be discharged through the first drainage component 1. Thus, the first drainage component 1 can respond to rainy weather or water accumulation on the top of the slope and discharge excess water in a timely manner through its drainage mechanism. This effectively prevents water accumulation from causing erosion, landslides, and other safety hazards on the top of the mining area slope, and ensures the production safety of the mining area.

[0030] The second drainage component 2 is suitable for installation at the toe of the slope in the mining area. The first drainage component 1 and the second drainage component 2 are connected so that water in the first drainage component 1 flows into the second drainage component 2. At least one of the first drainage component 1 and the second drainage component 2 is an ecological bag drainage ditch, which is used to reduce the flow rate of water in the first drainage component 1 and the second drainage component 2, so as to reduce dust in the water in the first drainage component 1 and the second drainage component 2. Specifically, as... Figure 1 As shown, the second drainage component 2 is located at the foot of the slope in the mining area and is connected to the first drainage component 1, so that the water collected in the first drainage component 1 can flow into the second drainage component 2, realizing the orderly guidance and centralized treatment of water resources.

[0031] Eco-bag drainage ditches slow down water flow, creating sufficient turbulence and mixing as the water passes through, which helps ensure smooth water transport and effectively reduces dust content in the water, achieving a dust suppression effect. Furthermore, during drainage, eco-bag drainage ditches can trap and settle silt and other impurities in the water. As the water flows slowly, silt gradually settles in the gaps or at the bottom of the eco-bag drainage ditches, thus purifying the water.

[0032] The sedimentation component 3 is connected to the second drainage component 2 so that water in the second drainage component 2 flows into the sedimentation component 3 for sedimentation. Specifically, as shown... Figure 1 As shown, the sedimentation component 3 is connected to the other end of the second drainage component 2, so that when the water in the second drainage component 2 flows through the sedimentation component 3, the suspended solids, silt and other impurities in the water will gradually settle to the bottom under the action of gravity.

[0033] The first grassed ditch 4 is suitable for being located on the ledge of the mining area and on the side of the second drainage component 2 away from the mining area. The first grassed ditch 4 extends along the length of the second drainage component 2 and is filled with vegetation. The first grassed ditch 4 is used to intercept and filter water discharged from the second drainage component 2. Specifically, as... Figure 1 As shown, the first grassed swale 4 is located at the foot of the slope in the mining area and in front of the second drainage component 2. The first grassed swale 4 extends in a left-right direction and is planted with adaptable and highly effective purifying plants. These plants not only intercept and filter impurities and pollutants remaining in the water discharged from the second drainage component 2, but also absorb and transform some harmful substances through their extensive root systems, further purifying the water quality. Simultaneously, the first grassed swale 4 effectively improves the ecological environment and landscape of the mining area.

[0034] The intelligent flexible water collection pool 100 system for coal mining areas in this embodiment of the invention is equipped with an ecological bag drainage ditch, a first grassed ditch 4, and a sedimentation component 3. The ecological bag drainage ditch intercepts silt from the uphill water, promoting the settling of fine sand. Combined with the kinetic energy dissipation of the stilling pool 6, it prevents silt from scouring downstream. The first grassed ditch 4 effectively intercepts and filters silt, suspended solids, and various pollutants in surface runoff, reducing the scouring and erosion of the soil by water flow and stabilizing the soil. It can also absorb and transform nutrients such as nitrogen and phosphorus, as well as some harmful substances such as heavy metals in the water through its own physiological characteristics, achieving deep purification of water quality. The sedimentation component 3 further reduces dust, preventing silt from entering the water collection area, ensuring the cleanliness of the water collection pool, eliminating the need for cleaning the water collection pool, and improving the service life of the water collection pool.

[0035] In some embodiments, the first drainage component 1 includes a first drainage ditch 11 and a second drainage ditch 12. The first drainage ditch 11 is adapted to be located on the top of a mining slope, and the second drainage ditch 12 is adapted to be located on the slope of the mining area. The first drainage ditch 11 is used for draining rainwater or water accumulated on the top of the slope. The upper and lower ends of the second drainage ditch 12 are respectively connected to the first drainage ditch 11 and the second drainage component 2, so that water in the first drainage ditch 11 flows into the second drainage component 2 through the second drainage ditch 12. Both the first drainage ditch 11 and the second drainage ditch 12 are ecological bag drainage ditches. Specifically, as shown... Figure 1As shown, the first drainage ditch 11 is set on the top of the slope in the mining area and extends in the left and right directions. Since rainwater tends to accumulate on the top of the slope during rainfall, if it is not drained in time, it will cause safety hazards. The first drainage ditch 11 can quickly collect and drain the rainwater or water accumulated on the top of the slope due to various reasons, ensuring the safety and stability of the top of the slope area.

[0036] The second drainage ditch 12 is set on the slope of the mining area. The second drainage ditch 12 extends in the vertical direction. The upper end of the second drainage ditch 12 is connected to the left end of the first drainage ditch 11, and the lower end of the second drainage ditch 12 is connected to the second drainage component 2. When the first drainage ditch 11 collects rainwater or accumulated water from the top of the slope, the water in the first drainage ditch 11 can flow smoothly into the second drainage component 2 along the second drainage ditch 12, ensuring that the mining area can maintain good drainage when facing rainfall and other situations, avoiding various disasters and losses caused by water accumulation. In addition, the first drainage ditch 11 and the second drainage ditch 12 are both ecological bag drainage ditches. Therefore, they can intercept and settle the silt and other impurities in the water in the first drainage ditch 11 and the second drainage ditch 12, thereby realizing a physical interception system such as source interception and midway sedimentation, reducing the frequency of dredging from the perspective of preventing siltation.

[0037] In some embodiments, the first drainage assembly 1 further includes a rainwater collection pool 13 and a first connecting pipe 14. The rainwater collection pool 13 is adapted to be located on the top of a slope in the mining area. The rainwater collection pool 13 is used to collect rainwater from the upper part of the slope in the mining area. The rainwater collection pool 13 is connected to the first drainage ditch 11 and the second drainage ditch 12 respectively through the first connecting pipe 14, so that water in the first drainage ditch 11 flows into the second drainage ditch 12 through the rainwater collection pool 13. Specifically, as Figure 2 As shown, the rainwater collection pond 13 is located on the top of the mining area slope. Because the top of the mining area slope is at a relatively high altitude, rainwater from the upper part will collect in the rainwater collection pond 13 during rainfall. The rainwater collection pond 13 can collect rainwater from the upper part of the mining area slope, preventing rainwater from flowing and accumulating on the slope, thereby reducing the risk of geological disasters such as soil loosening and landslides caused by rainwater erosion.

[0038] The rainwater collection pool 13 has mounting holes on its right end face and front end face. The first connecting pipe 14 is installed on the right end face and front end face of the rainwater collection pool 13 through the mounting holes. The first drainage ditch 11 is located at the right end of the rainwater collection pool 13 and is connected to the first drainage ditch 11 through the first connecting pipe 14. The second drainage ditch 12 is located at the lower end of the rainwater collection pool 13 and is connected to the second drainage ditch 12 through the first connecting pipe 14. The first connecting pipe 14 flows from the rainwater collection pool 13 into the second drainage ditch 12, thereby not only optimizing the water flow path and significantly improving the drainage efficiency, but also allowing rainwater to be discharged from the mining area quickly and orderly.

[0039] In some embodiments, the intelligent flexible water collection pool 100 system for coal mining areas further includes a retaining wall 5, which is adapted to be installed on the top of the slope in the mining area and located on the side of the first drainage ditch 11 adjacent to the second drainage ditch 12. The retaining wall 5 extends along the length of the first drainage ditch 11 and is used to prevent water from overflowing from the first drainage ditch 11. Specifically, as Figure 1 As shown, the retaining wall 5 is set on the top of the slope and located in front of the first drainage ditch 11. The retaining wall 5 is a wall extending in the left and right direction and its length matches that of the first drainage ditch 11. Since the first drainage ditch 11 is collecting and transporting rainwater from the top of the mining area, there is a risk of water overflow when there is excessive rainfall or local blockage of the drainage ditch. The retaining wall 5 can effectively limit the water flow within the drainage ditch and prevent it from overflowing into the surrounding area, thus avoiding damage to the mining area's production facilities, roads, and the surrounding environment.

[0040] In some embodiments, in a direction orthogonal to the width of the first drainage component 1 (e.g.) Figure 1 Within the projection plane (shown in the front-to-back direction), the projection of the first drainage ditch 11 is located within the retaining wall 5, and the second drainage component 2 is located within the first grassed ditch 4. Specifically, as shown... Figure 1 As shown, the length of the first drainage ditch 11 is less than or equal to the length of the retaining wall 5. Under the complex terrain and changeable climate conditions of the coal mining area, a large amount of rainwater will quickly converge into the first drainage ditch 11 during rainfall, ensuring that the retaining wall 5 can firmly confine the water flow in the first drainage ditch 11 within a predetermined range. The length of the second drainage component 2 is less than or equal to the length of the first grassed ditch 4, ensuring the interception effect of the first grassed ditch 4.

[0041] In some embodiments, the intelligent flexible water collection tank 100 system for coal mining areas further includes a stilling tank 6 and a second connecting pipe 7. The stilling tank 6 is adapted to be located at the toe of the slope in the mining area and is connected to a first drainage component 1 and a second drainage component 2 via the second connecting pipe 7, so that water in the first drainage component 1 flows into the second drainage component 2 through the stilling tank 6. Specifically, as Figure 3As shown, the stilling basin 6 is located at the foot of the slope and between the second drainage component 2 and the second drainage ditch 12. An installation hole is provided on the rear side of the stilling basin 6, through which the second connecting pipe 7 passes. The stilling basin 6 is connected to the second drainage ditch 12 via the second connecting pipe 7. The stilling basin 6 is also connected to the second drainage component 2. Since the slope foot of the mining area is a region where water flows converge and has high energy, when water flows down from a high place, it carries enormous kinetic energy. If it flows directly into the subsequent drainage components, it will cause a strong impact and damage to the drainage facilities, affecting the normal operation of the drainage system. The second drainage ditch 12 flows into the stilling basin 6, which effectively reduces the flow velocity and energy of the water, making the water flow smoother and gentler, reducing the impact force of the water flow. In addition, the reduced water flow velocity in the stilling basin 6 allows coarse particles of sediment to settle in advance, reducing the burden on the settling well 32. The stilling basin 6 is connected to the second drainage component 2, ensuring that the water flow buffered by the stilling basin 6 can smoothly enter the second drainage component 2 to continue the drainage task, ensuring the continuity and efficiency of the drainage process.

[0042] In some embodiments, the cross-sectional area of ​​the inner circumferential surface of the eco-bag drainage ditch gradually increases from bottom to top. The eco-bag drainage ditch includes a ditch body 15 and a plurality of eco-bags 16. The ditch body 15 includes a first sidewall 151, a second sidewall 152, and a bottom wall 153. The two sides of the bottom wall are respectively connected to the first sidewall 151 and the second sidewall 152. The first sidewall 151 extends from bottom to top and is inclined in a direction away from the second sidewall 152. The second sidewall 152 extends from bottom to top and is inclined in a direction away from the first sidewall 151. The plurality of eco-bags 16 are disposed within the ditch body 15 and are arranged sequentially along the circumference of the ditch body 15. Specifically, as shown in the figure... Figure 4 As shown, the cross-section of the ecological bag drainage ditch is trapezoidal, and the length of the top surface of the ecological bag drainage ditch is greater than the length of the bottom surface. The ecological bag drainage ditch includes a first sidewall 151, a second sidewall 152, and a bottom wall 153. The bottom wall extends in the front-to-back direction. The first sidewall 151 is the front wall surface of the ecological bag drainage ditch and extends from the bottom edge upwards and slopes forward. The second sidewall 152 is the rear wall surface of the ecological bag drainage ditch and extends from the bottom edge upwards and slopes backwards. On the one hand, the setting of the first sidewall 151 and the second sidewall increases the opening area of ​​the upper part of the ditch body 15, so that rainwater can be collected more quickly and smoothly and flow into the drainage ditch during rainfall, which greatly improves the drainage efficiency and effectively avoids the problem of water accumulation caused by poor drainage. On the other hand, the inclined first sidewall 151 and the second sidewall can better disperse the soil pressure, enhance the overall stability of the ditch body 15, reduce the risk of sidewall deformation or collapse caused by lateral soil compression, and extend the service life of the drainage ditch.

[0043] Ecological bags are permeable, allowing water to seep through the fabric gaps while filtering out silt and impurities. Multiple ecological bags 16 are arranged in rows along the length of the ditch 15, with each row containing several bags arranged circumferentially along the circumference of the ditch 15. This creates a stepped arrangement of the ecological bags 16 along the longitudinal section of the ditch, effectively intercepting large particles of silt in the water flow. The ecological bags 16 are typically made of high-strength, corrosion-resistant, and breathable environmentally friendly materials, filled with soil and seeds suitable for plant growth. The ecological bags 16 not only reinforce the ditch 15 and prevent soil erosion but also provide a favorable growing environment for plants. Over time, the plants within the ecological bags 16 will grow and reproduce, their roots penetrating the surrounding soil, further enhancing the stability and ecological function of the ditch 15. Simultaneously, the plant cover reduces direct rainwater erosion of the ditch 15, lowers water flow velocity, and alleviates pressure on the drainage system. In addition, the presence of the ecological bags 16 provides a habitat for microorganisms, promotes the restoration and balance of the soil ecosystem, and has good ecological benefits. In summary, the ecological bags are stacked in a stepped manner, and the bags are filled with a mixture of grass seeds containing improved soil. The permeability of the bags can intercept sediment and keep water flowing through. The grass seed mixture in the bags can initially disperse the water flow and reduce the energy of the water flow.

[0044] In some embodiments, the intelligent flexible water collection pool 100 for coal mining areas further includes a second grassed swale 9. The second grassed swale 9 is adapted to be located at the foot of the slope in the mining area and contains vegetation. The second grassed swale 9 is located between the second drainage component 2 and the sedimentation component 3 and is connected to both the second drainage component 2 and the sedimentation component 3, so that water in the second drainage component 2 flows into the sedimentation component 3 through the second grassed swale 9. In the projection plane orthogonal to the second drainage component 2, the projection of the second drainage component 2 is located within the second grassed swale 3. Specifically, as shown... Figure 1 As shown, the second grassed swale 9 is located at the foot of the slope in the mining area and to the right of the second drainage component 2. The second grassed swale 9 extends in a left-right direction and its two ends are connected to the second drainage ditch 12 and the sedimentation component 3, respectively. Water in the second drainage component 2 flows into the sedimentation component 3 through the second grassed swale 9. The second grassed swale 9 is planted with adaptable and highly effective green plants. These plants can not only intercept and filter impurities and pollutants remaining in the water discharged from the second drainage component 2, but also absorb and transform some harmful substances through their developed root systems, further purifying the water quality. At the same time, the second grassed swale 9 effectively improves the ecological environment and landscape effect of the mining area. In addition, the projection of the second drainage component 2 is located in the second grassed swale 3 (in other words, the area inside the second grassed swale 3 is larger than the area inside the second drainage component 2). When water from the second drainage component 2 flows into the second grassed swale 3, the large area of ​​the second grassed swale 3 will further disperse the impact of the water flow, further reducing the water flow.

[0045] In some embodiments, an impermeable membrane is laid in the second grassed swale 9 and the first grassed swale 4. The impermeable membrane contains a gravel layer 41 and a backfill soil layer 42, and the vegetation is planted within the backfill soil layer 42. Specifically, as... Figure 5 As shown, an anchoring trench 43 is excavated outside the first grassed swale 4. Anchor rods 44 are inserted into the anchoring trench 43 to fix the impermeable membrane to the outside and inner wall of the first grassed swale 4. This effectively prevents external water from seeping into the ground and prevents excessive loss of water from the underground soil, thus building a stable water environment foundation for the entire first grassed swale 4 system.

[0046] The gravel layer 41, located above the impermeable membrane, is composed of uniformly sized gravel with appropriate particle size. Numerous gaps exist between the gravel, creating excellent drainage channels. When rainwater flows into the first grassed ditch 4 or the second grassed ditch 9, the gravel layer 41 quickly disperses and diverts the water, preventing localized water accumulation and flooding. Simultaneously, the gravel layer 41 also acts as a filter, intercepting larger particles in the rainwater to prevent blockage of the subsequent drainage system, ensuring unobstructed drainage. Finally, the gravel also slows the flow of water from the second drainage component, allowing the grass roots to effectively intercept most of the sediment.

[0047] The backfill soil layer 42 is laid on top of the gravel layer 41, providing a fertile soil environment for the growth of green plants. This ensures sufficient space for the plant roots to grow while avoiding drainage problems caused by excessively thick soil layers. The green plants include herbaceous plants and shrubs. During their growth, the roots penetrate deep into the backfill soil layer 42 and the gravel layer 41, not only fixing the soil and preventing soil erosion, but also enhancing the structural stability of the first vegetated ditch 4 or the second vegetated ditch 9. Simultaneously, the green plants absorb carbon dioxide and release oxygen through photosynthesis, improving the surrounding air quality; their dense foliage also reduces the scouring force of rainwater on the ground, slows down water flow, and reduces soil erosion and runoff pollution.

[0048] In some embodiments, the sedimentation component 3 includes a grit chamber 31, a grit well 32, and a water collection tank 33. The grit well 32 extends downward from the bottom of the sedimentation chamber and communicates with the second drainage component 2. The grit well 32 is connected to the second drainage component 2 so that water in the second drainage component 2 flows into the grit well 32 for sedimentation, and water in the grit well 32 flows into the sedimentation chamber for sedimentation. The water collection tank 33 is connected to the grit chamber 31 so that water in the sedimentation chamber flows into the grit chamber 31. Specifically, as... Figure 1As shown, the sedimentation tank 31 is located at the toe of the slope and at the right end of the second drainage component 2. The sedimentation well 32 is located inside the sedimentation tank 31 and is connected to the second drainage component 2. When water from the second drainage component 2 flows into the sedimentation well 32, the water contains a large amount of heavier impurities such as sand and mud washed in from mining operations, urban roads, etc. Due to the relatively small internal space of the sedimentation well 32, the water flow velocity decreases rapidly. According to the principles of fluid mechanics, the decrease in water flow velocity reduces the inertial force on the impurities in the water, while the effect of gravity becomes more prominent. Impurities with higher density and larger particle size quickly sink under the action of gravity and accumulate at the bottom of the sedimentation well 32, achieving preliminary sedimentation and separation. At the same time, the clear water in the sedimentation well 32 flows into the sedimentation tank above the sedimentation well 32 for further sedimentation, thereby improving the removal efficiency of impurities in the water and effectively reducing the burden on subsequent treatment stages.

[0049] In some embodiments, the upper end of the sedimentation well 32 is higher than the upper end of the sedimentation tank 31, and the water that has settled in the sedimentation well flows into the sedimentation tank 31. Specifically, as Figure 1 As shown, an inlet can be installed above the sedimentation well 32, and the inlet is higher than the bottom of the sedimentation tank 31, so that the water in the sedimentation well 32 flows into the sedimentation tank 31 through the inlet.

[0050] The following describes in detail the intelligent flexible water collection pool 100 for coal mining areas according to an embodiment of the present invention.

[0051] In this embodiment, the first drainage ditch 11, the second drainage ditch 12, and the second drainage component 2 all have trapezoidal cross sections, and the ecological bags 16 are stacked in a stepped manner. An anchoring ditch 43 is excavated outside the first grassed ditch 4, and the geomembrane is fixed to the outside and inner wall of the first grassed ditch 4 by inserting anchor rods 44 into the anchoring ditch 43. A gravel layer 41 and a backfill soil layer 42 are laid on the inner bottom wall 153 outside the first grassed ditch 4. The drainage enters the sedimentation well 32, and the sediment is directly discharged into the sedimentation well 32 for settling and interception. The upper clear water is discharged into the sedimentation tank 31 through the high-level water inlet of the permeable brick layer and then flows into one of the installed PP module water storage tank, silica sand module water storage tank, or flexible water storage tank.

[0052] The concentrations of nitrogen and phosphorus pollutants and organic pollutants in the water of the three reservoirs were tested and analyzed. The data analysis is as follows: 1) The pH values ​​of the PP module reservoir, silica sand module reservoir, and flexible reservoir were all below 8.5, indicating weak alkalinity, which meets the basic control limits for farmland irrigation water quality; 2) There is a certain positive correlation between nitrogen and phosphorus-related pollutants and pH value. The silica sand reservoir showed the highest pH value, while the PP module reservoir and flexible reservoir showed similar results. Ammonia nitrogen levels were highest in the PP module reservoir and silica sand reservoir. No nitrogen and phosphorus pollution was detected in any of the modular water storage tanks. Overall, the PP modular water storage tanks had the lightest nitrogen and phosphorus pollution, followed by the flexible water storage tanks, and the silica sand modular water storage tanks had the heaviest pollution. However, their values ​​were all lower than the water quality limits for farmland irrigation and livestock and poultry water use. 3) The PP modular water storage tanks had the highest dissolved oxygen concentration, so their five-day biochemical oxygen demand was also the highest. However, the chemical oxygen demand was not detected, indicating that the PP modular water storage tanks had heavy biochemical pollution but no chemical pollution. Therefore, overall, the silica sand modular water storage tanks had the lightest organic pollution.

[0053] The concentrations of anions and cations in the water of the three reservoirs were tested and analyzed. The data analysis is as follows: 1) There is a positive correlation between the concentration of metal ion pollutants and pH. The concentrations of sodium, magnesium, and potassium ions in the PP module reservoir and the flexible reservoir are all below mg / L, indicating good water quality. Overall, the flexible reservoir has the least metal ion pollution. 2) The anion concentrations in the three reservoirs differ significantly. Carbonate ions were not detected in the PP module reservoir and the flexible reservoir, and bicarbonate ions were not detected in the silica sand module reservoir. Therefore, the water quality of the three reservoirs meets the standards for agricultural irrigation and livestock drinking water.

[0054] The water retention rate of the three reservoirs was tested, and the data analysis is as follows: 1) The PP module reservoir had good sealing performance and a water retention rate of over 94%; 2) The silica sand module reservoir was made of permeable bricks and covered with a stainless steel well cover. The evaporation rate was slightly higher than that of the PP module reservoir, with a minimum water retention rate of 88% and an average water retention rate of 93%, which meets the design standards for underground water storage facilities; 3) The cover of the flexible reservoir sagged, exposing some water on the cover, which caused water evaporation. Therefore, the water retention rate of the flexible reservoir was about 48%.

[0055] In summary, the specific working process of the intelligent flexible water collection pool 100 used in coal mining areas according to the embodiments of the present invention is as follows:

[0056] 1) Excavate the first drainage ditch 11 and rainwater collection pool 13 on the top of the slope 8 of the mining area to collect rainwater and drainage accumulated on the top of the slope. Construct a water retaining wall 5 on the top of the first drainage ditch 11 and on the side close to the outer perimeter of the slope 8 of the mining area to prevent the water level in the first drainage ditch 11 from being too high and flooding the top of the slope. Then, introduce the collected drainage into the second drainage ditch outside the slope through the water pipe inside the rainwater collection pool 13.

[0057] 2) The second connecting pipe 7 is introduced into the stilling pool 6 through the second drainage ditch 12 arranged longitudinally along the slope 8 of the mining area, which greatly dissipates the dynamic potential energy converted from gravitational potential energy when the drainage flows down, and avoids the problem of excessive water kinetic energy causing damage to the structure of the stilling pool 6, as well as the problem of water turbulence and overflow.

[0058] 3) At this time, the potential energy is greatly reduced. The stilling basin 6 discharges the drainage into the second drainage component 2, and the first grass ditch 4 is dug on the outside of the second drainage component 2. The second grass ditch 9 is dug on the right side of the second drainage component 2 to avoid the situation where the water level of the second drainage component 2 is too full and floods the surrounding farmland and trees. The drainage from the second drainage component 2 continues to be introduced into the second grass ditch 4 and the sedimentation well 32 for sedimentation treatment. The upper layer of clear water is introduced into the water collection module 5 through the high-level water inlet opened on the side wall of the permeable brick layer for storage and reserve.

[0059] 4) The core functions of the second drainage ditch 12, the first grassed ditch 4, the second grassed ditch 9, and the sedimentation pond 31 are to intercept surface runoff, settle sediment, and regulate water flow. Specifically, these functions include: 1) Interception and erosion control: intercepting surface runoff from the slope of the mining area to prevent water from directly scouring downstream farmland or water collection facilities, thus reducing the risk of soil erosion; 2) Sedimentation: through the combination of ecological bag drainage ditches and sedimentation ponds 32, utilizing the permeability of the ecological bags 16 and the vertical structure of the sedimentation ponds 32, sediment is settled in layers, reducing siltation in the reservoir; 3) Ecological regulation: the green layer and gravel layer 41 of the second grassed ditch 9 can slow down the water flow and increase infiltration, while also serving as an ecological buffer zone to purify the water quality.

[0060] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0064] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0065] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A flexible water collection pool system for coal mining areas, characterized in that, include: A first drainage component, at least a portion of which is adapted to be installed on the top of a slope in a mining area, is used to drain rainwater or water accumulated on the top of the slope. A second drainage component is adapted to be installed at the foot of the slope in the mining area. The first drainage component and the second drainage component are connected so that water in the first drainage component flows into the second drainage component. At least one of the first drainage component and the second drainage component is an ecological bag drainage ditch. The ecological bag drainage ditch is used to reduce the flow rate of water in the first drainage component and the second drainage component so as to reduce dust in the water in the first drainage component and the second drainage component. A sedimentation component is connected to the second drainage component so that water in the second drainage component flows into the sedimentation component for sedimentation. A first grassed ditch is adapted to be located on the sloping side of the mining area and on the side of the second drainage assembly away from the mining area. The first grassed ditch extends along the length of the second drainage assembly and is filled with green plants. The first grassed ditch is used to intercept and filter water discharged from the second drainage assembly.

2. The flexible water collection pool system for coal mining areas according to claim 1, characterized in that, The first drainage component includes a first drainage ditch and a second drainage ditch. The first drainage ditch is adapted to be located on the top of the slope of the mining area, and the second drainage ditch is adapted to be located on the slope of the mining area. The first drainage ditch is used to drain rainwater or water accumulated on the top of the slope. The upper and lower ends of the second drainage ditch are respectively connected to the first drainage ditch and the second drainage component, so that water in the first drainage ditch flows into the second drainage component through the second drainage ditch. Both the first drainage ditch and the second drainage ditch are the drainage ditches of the ecological bag.

3. The flexible water collection pool system for coal mining areas according to claim 2, characterized in that, The first drainage assembly further includes a rainwater collection pool and a first connecting pipe. The rainwater collection pool is adapted to be located on the top of the slope of the mining area. The rainwater collection pool is used to collect rainwater at the top of the slope of the mining area. The rainwater collection pool is connected to the first drainage ditch and the second drainage ditch through the first connecting pipe, so that water in the first drainage ditch flows into the second drainage ditch through the rainwater collection pool.

4. The flexible water collection pool system for coal mining areas according to claim 2, characterized in that, It also includes a retaining wall, which is adapted to be installed on the top of the slope of the mining area and on the side of the first drainage ditch adjacent to the second drainage ditch. The retaining wall extends along the length of the first drainage ditch and is used to prevent water from overflowing from the first drainage ditch.

5. The flexible water collection pool system for coal mining areas according to claim 4, characterized in that, Within a projection plane orthogonal to the width direction of the first drainage component, the projection of the first drainage ditch is located within the retaining wall, and the second drainage component is located within the first grassed ditch.

6. The flexible water collection pool system for coal mining areas according to claim 1, characterized in that, It also includes a stilling basin and a second connecting pipe. The stilling basin is adapted to be located at the toe of the slope in the mining area and is connected to the first drainage component and the second drainage component respectively through the second connecting pipe, so that water in the first drainage component flows into the second drainage component through the stilling basin.

7. The flexible water collection pool system for coal mining areas according to claim 1, characterized in that, The cross-sectional area of ​​the inner circumferential surface of the ecological bag drainage ditch gradually increases from bottom to top. The ecological bag drainage ditch includes a ditch body and multiple ecological bags. The ditch body includes a first sidewall, a second sidewall, and a bottom wall. The two sides of the bottom wall are connected to the first sidewall and the second sidewall, respectively. The first sidewall extends from bottom to top and is inclined in a direction away from the second sidewall. The second sidewall extends from bottom to top and is inclined in a direction away from the first sidewall. Multiple ecological bags are disposed in the ditch body and are arranged sequentially along the circumference of the ditch body.

8. The flexible water collection pool system for coal mining areas according to claim 1, characterized in that, It also includes a second grassed swale, which is adapted to be located at the foot of the slope of the mining area and is filled with green plants. The second grassed swale is located between the second drainage component and the sedimentation component and is connected to the second drainage component and the sedimentation component respectively, so that the water in the second drainage component flows into the sedimentation component through the second grassed swale. In the projection plane orthogonal to the second drainage component, the projection of the second drainage component is located in the second grassed swale.

9. The flexible water collection pool system for coal mining areas according to claim 1, characterized in that, Both the first and second grassed swales are lined with impermeable membranes, and the impermeable membranes contain a gravel layer and a backfill soil layer, with the green plants planted in the backfill soil layer.

10. The flexible water collection pool system for coal mining areas according to claim 1, characterized in that, The sedimentation assembly includes a sedimentation tank, a sedimentation well, and a collection tank. The sedimentation well is located inside the sedimentation tank and extends downward from the bottom of the sedimentation tank. The sedimentation well is connected to the second drainage assembly so that water in the second drainage assembly flows into the sedimentation well for sedimentation and water in the sedimentation well flows into the sedimentation tank for sedimentation. The collection tank is connected to the sedimentation tank so that water in the sedimentation tank flows into the sedimentation tank. The upper end of the sedimentation well is higher than the upper end of the sedimentation tank, and the water that has settled in the sedimentation well flows into the sedimentation tank.

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