Isolation belt for ecological restoration of mine

Abstract

The invention belongs to the technical field of ecological restoration, and particularly relates to an isolation belt for ecological restoration of a mine, which is formed by connecting a plurality of isolation units along the length direction, each isolation unit comprises symmetrically arranged chain frames, and the chain frames are obliquely arranged close to a mine slope; a multifunctional filling body is arranged in the chain frame and sequentially comprises a profiling pressing plate, an anti-seepage substrate layer arranged on the profiling pressing plate, a graded filtering and purifying cavity arranged above the anti-seepage substrate layer and an ecological restoration base layer arranged above the graded filtering and purifying cavity from bottom to top. A vertical rod is arranged on the chain frame, and a stone-soil separation device is arranged on the side portion of the vertical rod and used for filtering and separating stones and water and soil rushed down from the mine slope, completing stone filtering and separation and conveying the water and soil to the upper surface of the ecological restoration base layer. The invention can provide an innovative mine ecological restoration solution which is ingenious in design, comprehensive in function, stable in performance and environment-friendly.

Description

Technical Field

[0001] This invention belongs to the field of ecological restoration technology, specifically relating to an isolation zone for mine ecological restoration. Background Technology

[0002] In mine ecological restoration, isolation zones are used to block the spread of pollutants, prevent soil erosion, and provide a substrate for vegetation restoration. Existing technologies often employ simple methods such as piling up soil, building masonry, or laying ordinary geosynthetic materials, which have significant drawbacks: Poor terrain adaptability: Rigid structures or flexible materials are difficult to fit tightly on complex and uneven mine surfaces, which can easily lead to gaps and isolation failure.

[0003] Single and passive function: Most structures only have physical barrier function, especially limited ability to purify pollutants such as heavy metals that spread with water flow, and cannot actively create a microenvironment conducive to plant growth.

[0004] Insufficient stability: On slopes, traditional isolation strips are prone to slippage and collapse due to rainwater erosion or their own weight.

[0005] The different functional layers are easily confused: Under long-term use and rainwater infiltration, the materials of different functional layers are easily mixed with each other, which leads to clogging of the filter layer, depletion of the recovery layer, and rapid decline in function.

[0006] Therefore, the present invention provides an isolation zone for mine ecological restoration that can adapt to terrain, achieve long-term stability, and has multiple synergistic functions. Summary of the Invention

[0007] The purpose of this invention is to provide an isolation zone for mine ecological restoration, which offers an innovative mine ecological restoration solution that is ingeniously designed, fully functional, stable in performance, and environmentally friendly.

[0008] The specific technical solution adopted by this invention is as follows: An isolation strip for mine ecological restoration is composed of multiple isolation units connected along the length direction. Each isolation unit includes: a symmetrically arranged chain frame, which is inclined to fit the mine slope and is composed of several movable chain links. The chain frame is equipped with a multifunctional filler, which includes, from bottom to top: a contoured pressure plate, an impermeable substrate layer disposed on the contoured pressure plate, a graded filtration and purification chamber disposed above the impermeable substrate layer, and an ecological restoration base layer disposed above the graded filtration and purification chamber. The chain frame is equipped with uprights, and the uprights are equipped with a stone-soil separation device on their sides. The stone-soil separation device is used to filter and separate rocks and soil washed down from the mine slope, complete the filtering and separation of rocks, and transfer the soil and water to the upper surface of the ecological restoration base layer.

[0009] Preferably, the upright has an inclined rod on its side, and the lower end of the inclined rod has pre-compression springs arranged in an equally spaced array. The lower end of the pre-compression springs is connected to the upper surface of the contouring pressure plate. The pre-compression springs are configured to provide a continuous downward compressive force to the contouring pressure plate.

[0010] Preferably, adjacent isolation units are hinged to each other via a hinge axis, the axis of which is parallel to the extension direction of the isolation strip, so that adjacent isolation units can rotate relative to each other around the hinge axis in a plane perpendicular to the extension direction.

[0011] Preferably, the graded filtration and purification chamber includes: a chamber body and at least one vertical partition located inside the chamber body, which divides the chamber body into multiple interconnected chambers; The adjacent chambers are connected by water passage holes at different heights on the vertical partition, so that the water flows through the graded filtration and purification chamber in a meandering S-shaped path. The upper bottom wall of the graded filtration and purification chamber has at least one water inlet, and the lower top wall has at least one water outlet. Each of the multiple chambers is filled with a filter or adsorption medium with different physicochemical properties.

[0012] Preferably, the interior of the ecological restoration base layer is provided with crisscrossing reinforced grids, which divide the interior space of the ecological restoration base layer into multiple independent vegetation compartments.

[0013] Preferably, some of the chain links are provided with mounting ears on their sides, and the bottom of the upright is provided with a mounting block. Both the mounting ears and the mounting block are provided with mounting through holes, and the isolation belt is fixed to the mine slope through the mounting through holes and bolts.

[0014] Preferably, the impermeable substrate is a flexible sheet material that is spread out and supported on the upper surface of all the conformal pressure plates.

[0015] Preferably, the soil-rock separation device includes a first filter plate and a second filter plate disposed on the side of the upright. One end of the first filter plate is located above one end of the second filter plate, and the other ends of the first filter plate and the second filter plate are in contact with each other. The pore size of the first filter plate is larger than that of the second filter plate. A water storage chamber is provided below the second filter plate, and a water outlet pipe is connected through the side wall of the water storage chamber. The water outlet pipe is aligned with the multifunctional filler body and is equipped with a valve. A curved plate is provided above the upright, and the curved plate is located directly above the first filter plate. The end of the curved plate and the end of the first filter plate are integrally open. The valve rod passes through the first filter plate, the second filter plate, and the curved plate. The water outlet pipe is adapted to the water inlet.

[0016] The technical effects achieved by this invention are as follows: This invention provides a mine ecological restoration isolation belt that integrates four major functions: flexible support, physical barrier, water purification, and ecological restoration, and has the following significant advantages: Excellent terrain adaptability: The chain frame and articulated shaft design allows it to fit snugly onto various complex and uneven mine slopes, providing flexible and seamless installation.

[0017] Highly efficient soil and water conservation and resource utilization: The rock and soil separation device can not only effectively intercept rocks and prevent impact damage, but also separate water and soil, and collect the filtered water resources for irrigation, realizing the resource utilization of slope runoff.

[0018] Deep water purification capabilities: The multi-stage series filtration and purification chambers can deeply purify polluted water bodies, improve the water environment of the restoration area, and provide high-quality water sources for plant growth and ecosystem reconstruction.

[0019] Stable structure and long-term performance: Through mechanical anchoring, pre-compression springs and reinforced grids, the design ensures the long-term stability of the entire system on steep slopes, with strong resistance to erosion and deformation.

[0020] Promoting natural ecological restoration: The integrated design provides a stable substrate, clean water source and strong support for plant growth, which greatly promotes the rapid restoration of vegetation on mine slopes and the reconstruction of the ecosystem.

[0021] In summary, this device is an innovative mine ecological restoration solution that is ingeniously designed, fully functional, stable in performance, and environmentally friendly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is the present invention. Figure 2 Enlarged view of point A in the middle; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is the present invention. Figure 3 Sectional view at point BB; Figure 5 This is the present invention. Figure 4 Enlarged view of point C in the middle; Figure 6 This is the present invention. Figure 4 Enlarged view of point D in the middle.

[0023] The attached diagram lists the components represented by each number as follows: 1. Isolation unit; 2. Chain frame; 3. Multifunctional filler; 4. Upright pole; 5. Soil-rock separation device; 6. Inclined rod; 7. Pre-compression spring; 12. Hinge shaft; 21. Mounting ear; 31. Contour pressure plate; 32. Impermeable lining layer; 33. Staged filtration and purification chamber; 34. Ecological restoration base layer; 41. Mounting block; 51. First filter plate; 52. Second filter plate; 53. Water storage chamber; 54. Water outlet pipe; 55. Valve; 56. Bend plate; 331. Cavity; 332. Vertical partition; 333. Water passage hole; 334. Water inlet; 335. Water outlet; 341. Reinforced grid; 342. Vegetation chamber. Detailed Implementation

[0024] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0025] like Figure 1 As shown, an isolation strip for mine ecological restoration is formed by connecting multiple isolation units 1 along the length direction. Each isolation unit 1 includes: a symmetrically arranged chain frame 2, which is inclined to fit the mine slope and is composed of several movable chain links. The chain frame 2 is equipped with a multi-functional filler 3. The multi-functional filler 3 includes, from bottom to top: a contoured pressure plate 31, a seepage-proof substrate layer 32 disposed on the contoured pressure plate 31, a graded filtration and purification chamber 33 disposed above the seepage-proof substrate layer 32, and an ecological restoration base layer 34 disposed above the graded filtration and purification chamber 33. The chain frame 2 is equipped with a pole 4, and the side of the pole 4 is equipped with a stone-soil separation device 5. The stone-soil separation device 5 is used to filter and separate the stones and soil washed down from the mine slope, complete the filtering and separation of stones, and transfer the soil and water to the upper surface of the ecological restoration base layer 34.

[0026] This invention, through the setting of a movable chain frame 2, allows the isolation unit 1 to flexibly conform to uneven mine slopes, exhibiting extremely high adaptability. The integrated multifunctional filler 3 achieves integrated functions from seepage prevention and purification to ecological restoration. In particular, the rock-soil separation device 5 can actively intercept and separate rocks and soil in slope runoff, not only preventing rock impact damage but also guiding valuable water and soil resources to the ecological restoration layer for utilization, transforming passive protection into an active "pollution interception, soil stabilization, and water supply" system.

[0027] Preferably, the upright post 4 is provided with an inclined rod 6 on its side, and the lower end of the inclined rod 6 is provided with pre-compression springs 7 distributed in an equally spaced array. The lower end of the pre-compression springs 7 is connected to the upper surface of the contoured pressure plate 31. The pre-compression springs 7 are configured to provide a continuous downward compressive force to the contoured pressure plate 31. In this invention, the width of the contoured pressure plate 31 is greater than that of the impermeable substrate layer 32. The dimensions of the impermeable substrate layer 32, the graded filtration and purification chamber 33, and the ecological restoration base layer 34 are all the same. The pre-compression springs 7 press the protruding part on the side of the contoured pressure plate 31 to achieve the fit between the contoured pressure plate 31 and the mine slope ground.

[0028] In this invention, the pre-compression spring 7 continuously presses the contour plate 31 downwards, ensuring that the entire multifunctional filler 3, especially the bottom contour plate 31, remains in close contact with the slope soil. This effectively prevents gaps from forming at the bottom of the filler due to rainwater erosion or its own deformation, avoids soil and water loss from the bottom, and enhances the overall stability and seepage prevention effect of the isolation zone.

[0029] Preferably, adjacent isolation units 1 are hinged to each other by a hinge shaft 12, the axis of which is parallel to the extension direction of the isolation strip, so that adjacent isolation units 1 can rotate relative to each other in a plane perpendicular to the extension direction around the hinge shaft 12.

[0030] In this invention, the hinge shaft 12 is designed to allow relative rotation between the various isolation units 1. This allows the entire isolation strip to bend flexibly like a chain during installation, perfectly adapting to the complex undulations and bends of the mine slope, greatly improving the convenience of construction and terrain fit, and eliminating the installation dead angles or stress concentration problems that may exist with rigid connections.

[0031] Preferably, the graded filtration and purification chamber 33 includes: a chamber 331 and at least one vertical partition 332 located inside the chamber 331, which divides the chamber 331 into multiple interconnected chambers. The adjacent chambers are connected by water passage holes 333 at different heights on the vertical partition 332, so that the water flow forms a meandering S-shaped path when it flows through the graded filtration and purification chamber 33. At least one inlet 334 is provided on the bottom wall of the upper end of the graded filtration and purification chamber 33, and at least one outlet 335 is provided on the top wall of the lower end of the graded filtration and purification chamber 33. Each of the multiple chambers is filled with a filter or adsorption medium with different physicochemical properties.

[0032] In this invention, the graded filtration and purification chamber 33, through vertical partitions 332 and water passages 333 at different heights, forces the water flow to form a meandering "S"-shaped path within the chamber. This greatly extends the water's residence time and, through the filling of different media such as coarse sand, activated carbon, and zeolite, performs multi-stage, deep purification of the water, effectively removing pollutants such as silt and heavy metal ions, significantly improving the quality of the outflowing water, and providing a cleaner water source for the growth of upper-layer plants.

[0033] Preferably, the interior of the ecological restoration base layer 34 is provided with crisscrossing reinforced grids 341, which divide the interior space of the ecological restoration base layer 34 into multiple independent vegetation compartments 342.

[0034] In this invention, the vegetation chamber 342 structure formed by the reinforced grid 341 divides the 34 layers of the ecological restoration base into multiple independent units. This design can prevent soil erosion or plant death in local areas from affecting the entire layer, improving the structure's resistance to damage and stability. At the same time, the independent vegetation chambers 342 are also more conducive to targeted replanting and maintenance management.

[0035] Preferably, a mounting ear 21 is provided on the side of some chain links, and a mounting block 41 is provided at the bottom of the upright 4. Mounting through holes are provided on both the mounting ear 21 and the mounting block 41. The isolation belt is fixed to the mine slope by bolts through the mounting through holes.

[0036] This invention provides a robust mechanical anchor point for the entire isolation strip by using mounting ears 21 and mounting blocks 41 in conjunction with bolts. This securely locks the isolation strip to the slope, preventing it from sliding down due to gravity or rain erosion, greatly enhancing the safety and durability of the entire system on steep slopes.

[0037] Preferably, the impermeable substrate 32 is a flexible sheet material that is spread out and supported on the upper surface of all the conformal pressure plates 31.

[0038] In this invention, the flexible sheet-like impermeable substrate 32 can deform with the change of the conformal pressure plate 31, ensuring complete coverage and no leakage points. Its main function is to prevent water and pollutants from seeping down from the upper layer from directly entering the lower soil layer, and to guide the water flow to the graded filtration and purification chambers of the expected purification path, thus ensuring the effective operation of the water treatment system.

[0039] Preferably, the soil-rock separation device 5 includes a first filter plate 51 and a second filter plate 52 disposed on the side of the upright 4. One end of the first filter plate 51 is located above one end of the second filter plate 52, and the other ends of the first filter plate 51 and the second filter plate 52 are in contact with each other. The filter aperture of the first filter plate 51 is larger than the aperture of the second filter plate 52. A water storage chamber 53 is provided below the second filter plate 52. A water outlet pipe 54 is connected through the side wall of the water storage chamber 53. The water outlet pipe 54 is connected to the multifunctional filler 3. A valve 55 is provided on the water outlet pipe 54. A bent plate 56 is provided above the upright 4. The bent plate 56 is located directly above the first filter plate 51. The end of the bent plate 56 and the end of the first filter plate 51 are integrally opened. The rotating rod of the valve 55 passes through the first filter plate 51, the second filter plate 52 and the bent plate 56. The water outlet pipe 54 is adapted to the water inlet 334.

[0040] The soil-rock separation device 5 employs a two-stage filtration system; the first filter plate 51 intercepts large rocks, while the second filter plate 52 filters fine soil, achieving efficient separation. The curved plate 56 serves to guide flow and reinforce the structure. The water storage chamber 53 and the outlet pipe 54 with a valve 55 constitute a simple water collection and irrigation system. This system can store filtered clean water and, when needed, such as during droughts, open the valve 55 to precisely irrigate the underlying ecological restoration base layer, achieving water resource recycling and intelligent management.

[0041] The working principle of this invention is as follows: Laying and fixing: According to the terrain of the mine slope, multiple isolation units 1 are connected into a strip by hinge shaft 12. The flexibility of the chain frame 2 is used to make it fit tightly against the slope, and the isolation strip is fixed to the slope by bolts through mounting ears 21 and mounting blocks 41.

[0042] like Figure 4 As shown, the rock-soil separation and diversion process: When rainwater or debris flow washes down the slope, the rock-soil separation device 5 starts working. Large rocks are intercepted by the first filter plate 51 and stored between the curved plate 56 and the first filter plate 51. The runoff mixed with soil and water passes through the first filter plate 51 and is further filtered by the second filter plate 52. Specifically, in this invention, as... Figure 6 As shown, a transfer chamber is provided between the side of the water storage chamber 53 and the upper end of the graded filtration and purification chamber 33. Water mixed with mud slides directly onto the second filter plate 52. After being filtered by the second filter plate 52, some of the liquid water passes through the transfer chamber and directly enters the graded filtration and purification chamber 33 from the inlet 334. The water flow path is as follows: Figure 6 As shown by the solid arrow, some relatively clear water falls into the water storage chamber 53 and is stored, such as... Figure 6 As shown, water in the water storage chamber 53 enters the graded filtration and purification chamber 33 along the direction of the arrow lines of the interval segments; During the water purification process: Rainwater flowing down the mine slope after being filtered by the first filter plate 51 enters the transfer chamber. After the valve 55 is opened, the rainwater flowing out of the water storage chamber 53 through the outlet pipe 54 also enters the transfer chamber through the outlet pipe 54. The transfer chamber directly enters the graded filtration and purification chamber 33 from the inlet 334. The water flows in from the bottom inlet 334 and flows upward along an S-shaped path in multiple chambers formed by the vertical partitions 332. During this process, the water comes into full contact with filter adsorption media of different properties, gradually removing pollutants such as suspended particles and heavy metals.

[0043] like Figure 5 As shown, the soil between the first filter plate 51 and the second filter plate 52 can be manually pushed into the upper surface of the ecological restoration base layer 34 in the direction of the dotted arrow line at regular intervals to assist plant growth. It should be noted that there is a partition here, so that the soil or rainwater will not slide to the upper surface of the ecological restoration base layer 34 when it is not manually pushed.

[0044] Ecological irrigation and restoration: The purified water flows out from the outlet 335 at the top of the graded filtration and purification chamber 33 and permeates into the ecological restoration base layer 34 above; the vegetation chamber 342 formed by the reinforced grid 341 in this soil layer ensures soil stability and provides a substrate for plant growth; the purified water provides the necessary water and nutrients for the plants, promoting the restoration and growth of vegetation.

[0045] Continuous stability assurance: Throughout the process, the pre-compression spring 7 always ensures that the contour plate 31 presses firmly against the slope to prevent soil erosion at the bottom; the impermeable lining layer 32 ensures that the water flows along the designed path; and the entire chain frame 2 structure continuously adapts to minor changes in the slope to maintain the overall stability of the system.

[0046] This mine ecological restoration isolation belt integrates four major functions: flexible support, physical barrier, water purification, and ecological restoration, and has the following significant advantages: Excellent terrain adaptability: The design of the chain frame 2 and hinge shaft 12 allows it to fit snugly against various complex and uneven mine slopes, making installation flexible and without dead angles.

[0047] Efficient soil and water conservation and resource utilization: The soil and rock separation device 5 can not only effectively intercept rocks and prevent impact damage, but also separate water and soil, and collect the filtered water resources for irrigation, realizing the resource utilization of slope runoff.

[0048] Deep water purification capabilities: The multi-stage series-connected filtration and purification chamber 33 can deeply purify polluted water, improve the water environment of the restoration area, and provide high-quality water sources for plant growth and ecosystem reconstruction.

[0049] Stable structure and long-term performance: Through mechanical anchoring, pre-compression spring 7 and reinforced grid 341, the design ensures the long-term stability of the entire system on steep slopes, and has strong resistance to erosion and deformation.

[0050] Promoting natural ecological restoration: The integrated design provides a stable substrate, clean water source and strong support for plant growth, which greatly promotes the rapid restoration of vegetation on mine slopes and the reconstruction of the ecosystem.

[0051] In summary, this device is an innovative mine ecological restoration solution that is ingeniously designed, fully functional, stable in performance, and environmentally friendly.

[0052] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A mine ecological restoration isolation strip, comprising multiple isolation units (1) connected along its length, characterized in that, Each of the isolation units (1) includes: a symmetrically arranged chain frame (2), the chain frame (2) being inclined to fit the mine slope, the chain frame (2) being composed of a number of movable chain links; The chain frame (2) is provided with a multifunctional filler (3), which includes, from bottom to top, a contoured pressure plate (31), a seepage-proof substrate layer (32) disposed on the contoured pressure plate (31), a graded filtration and purification chamber (33) disposed above the seepage-proof substrate layer (32), and an ecological restoration base layer (34) disposed above the graded filtration and purification chamber (33). The chain frame (2) is provided with a pole (4), and the side of the pole (4) is provided with a stone-soil separation device (5). The stone-soil separation device (5) is used to filter and separate the stones and soil washed down from the mine slope, complete the filtering and separation of stones, and transfer the soil and water to the upper surface of the ecological restoration base layer (34).

2. The isolation belt for mine ecological restoration according to claim 1, characterized in that, The upright (4) is provided with an inclined rod (6) on its side. The lower end of the inclined rod (6) is provided with pre-compression springs (7) distributed in an equally spaced array. The lower end of the pre-compression springs (7) is connected to the upper surface of the contour plate (31). The pre-compression springs (7) are configured to provide a continuous downward compressive force to the contour plate (31).

3. The isolation belt for mine ecological restoration according to claim 2, characterized in that, The adjacent isolation units (1) are hinged to each other by a hinge shaft (12), the axis of which is parallel to the extension direction of the isolation strip, so that the adjacent isolation units (1) can rotate relative to each other in a plane perpendicular to the extension direction around the hinge shaft (12).

4. The isolation belt for mine ecological restoration according to claim 3, characterized in that, The graded filtration and purification chamber (33) includes: a chamber (331) and at least one vertical partition (332) located inside the chamber (331), which divides the chamber (331) into multiple interconnected chambers. The adjacent chambers are connected by water passage holes (333) opened on the vertical partition (332) and located at different heights, so that the water flow forms a meandering S-shaped path when it flows through the graded filtration and purification chamber (33); The upper bottom wall of the graded filtration and purification chamber (33) is provided with at least one water inlet (334), and the lower top wall of the graded filtration and purification chamber (33) is provided with at least one water outlet (335). Each of the multiple chambers is filled with a filter or adsorption medium with different physicochemical properties.

5. The isolation belt for mine ecological restoration according to claim 4, characterized in that, The ecological restoration base layer (34) is provided with a crisscrossing reinforced grid (341), which divides the internal space of the ecological restoration base layer (34) into multiple independent vegetation compartments (342).

6. The isolation belt for mine ecological restoration according to claim 4 or 5, characterized in that, The chain link is provided with a mounting ear (21) on its side and a mounting block (41) is provided at the bottom of the upright (4). The mounting ear (21) and the mounting block (41) are provided with mounting through holes. The isolation belt is fixed to the mine slope by bolts through the mounting through holes.

7. The isolation belt for mine ecological restoration according to claim 6, characterized in that, The impermeable substrate (32) is a flexible sheet material that is spread out and supported on the upper surface of all the contoured pressure plates (31).

8. The isolation belt for mine ecological restoration according to claim 7, characterized in that; The soil-rock separation device (5) includes a first filter plate (51) and a second filter plate (52) disposed on the side of the upright (4). One end of the first filter plate (51) is located above one end of the second filter plate (52), and the other ends of the first filter plate (51) and the second filter plate (52) are in contact with each other. The pore size of the first filter plate (51) is larger than that of the second filter plate (52). A water storage chamber (53) is provided below the second filter plate (52), and a water outlet pipe is connected through the side wall of the water storage chamber (53). 54), the water outlet pipe (54) is connected to the multifunctional filler (3), the water outlet pipe (54) is equipped with a valve (55), the upright (4) is equipped with a bent plate (56), the bent plate (56) is located directly above the first filter plate (51), the end of the bent plate (56) and the end of the first filter plate (51) are integrally open, the rotating rod of the valve (55) passes through the first filter plate (51), the second filter plate (52) and the bent plate (56), the water outlet pipe (54) and the water inlet (334) are mutually compatible.

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