A mine ecological environment multi-level restoration system and method

Abstract

The present application relates to a kind of mine ecological environment multilevel repair system and method, including intercepting and draining assembly, water storage assembly, drip irrigation assembly, flow assembly, intercepting and draining assembly is used to prevent soil loss and carry out large-scale water storage, water storage assembly is used to form multiple gradient water storage cavities in waterway.The repair system is repaired to ecological environment by intercepting, water storage, plant repair and other multilevel repair means, intercepting can effectively prevent the surface layer of dump site from losing a large number of guest soil, and water storage range is larger, except a small number of areas, most of the rainwater of entire dump site flows into waterway, water storage can be continuously drip irrigation to slope, effectively solve the problem that the slope water storage capacity is poor and then leads to low vegetation survival rate, also by setting first buoyancy part, when rainfall is large, make the water baffle rise, flow out narrow gap at the bottom of water baffle, so that water flow increases in narrow gap, effectively dredge.

Description

Technical Field

[0001] This invention belongs to the field of ecological restoration technology, specifically relating to a multi-level restoration system and method for the ecological environment of mines. Background Technology

[0002] Mine ecological restoration is an important measure to address ecological damage caused by resource development. It aims to restore biodiversity and the function of damaged ecosystems by addressing issues such as soil erosion and vegetation degradation. Among these measures, spoil heaps are important restoration areas in the mine ecological environment. Spoil heaps are generally stacked in layers, with a platform on top and stepped slopes on all sides.

[0003] Existing restoration methods mainly include the following levels: constructing intercepting and drainage channels to prevent large-scale surface soil loss; microbial remediation and soil improvement; and vegetation reconstruction. Among these, constructing intercepting and drainage channels can effectively prevent water flow from eroding the slope and causing significant topsoil loss. However, in actual restoration processes, due to the slope's poor water retention capacity and low vegetation survival rate, the lack of vegetation to stabilize the soil further leads to continuous topsoil loss, creating a vicious cycle. Therefore, existing technologies generally employ two drip irrigation methods to replenish water to slopes: drip irrigation from nearby lakes or water sources; and for spoil heaps without nearby lakes or water sources, rainwater is collected for drip irrigation. Both methods have shortcomings. Collecting water from a long distance and then distributing it for drip irrigation is difficult and impractical for spoil heaps far from water sources. Collecting rainwater can easily lead to muddy water accumulation mixed with soil, requiring regular cleaning. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-level restoration system and method for the ecological environment of mines in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A multi-level restoration system for the ecological environment of mines is disclosed. This system is used for the ecological restoration of spoil heaps in mines, and the spoil heap consists of stepped platforms and slopes. The system includes...

[0007] Interception and drainage components, used to prevent soil erosion, include waterways set along the edges of each platform and a main drainage pipe connecting the waterways;

[0008] A water storage assembly for forming multiple gradient water storage chambers in a waterway includes a baffle plate slidably disposed in the waterway and a first buoyancy part disposed on both sides of the baffle plate near the upper end. The first buoyancy part is used to lift the baffle plate when the water level reaches the height of the first buoyancy part, and to flush away silt through the gap between the baffle plate and the bottom of the waterway.

[0009] A drip irrigation assembly for drip irrigation of vegetation on a slope includes a media pump that draws water from a reservoir and drip irrigation tubing connected to the media pump.

[0010] As a further optimization of the present invention, the bottom of each waterway is provided with a connecting pipe for connecting to the main drainage pipe. A retaining net is provided on the side of the waterway near the high slope. The waterway is generally set at the bottom of each slope layer and the edge of the top platform. When rainwater falls on the slope and flows into the waterway below, the flow is short and the water volume is dispersed, resulting in less scouring force on a single slope layer. The waterway is discharged uniformly after being connected to the main drainage pipe.

[0011] As a further optimization of the present invention, the inner wall of the waterway is provided with a plurality of pairs of first limiting parts, and a sliding space is formed between each pair of first limiting parts to accommodate the lifting and sliding of the baffle plate. The baffle plate is also provided with a second limiting part for limiting the lifting range of the baffle plate. This solution, through modular water storage components, enables the repair system to be compatible with existing mine drainage waterways. By setting first limiting parts on existing waterways and setting baffle plates that are adapted to the cross-section of the waterways, compatibility can be achieved, greatly reducing the modification cost.

[0012] As a further optimization of the present invention, the suction port of the media pump is provided with a first flexible hose, one end of which enters the water storage chamber and is provided with a first filter and a second buoyancy component. The discharge port of the media pump is provided with a delivery pipe, and several drip irrigation pipes are also provided on the delivery pipe. The delivery pipe and the drip irrigation pipes are distributed on the slope. This solution, by setting the media pump to draw water from the water storage chamber and further providing the first flexible hose and the second buoyancy component, makes the water intake port float below the water surface, which can effectively reduce the suction of silt from the bottom.

[0013] As a further optimization of the present invention, the drip irrigation assembly also includes a medicine tank and a proportional regulating valve. The medicine tank and the first hose are connected to the suction port of the medium pump through the proportional regulating valve. In order to perform multi-level soil remediation, this solution adds a medicine to the drip irrigation assembly to add liquid fertilizer and increase soil fertility during drip irrigation.

[0014] As a further optimization of the present invention, the surface of the baffle plate is also provided with a flow assembly for allowing flow between the two water storage chambers when the liquid level difference between adjacent water storage chambers reaches a preset value. The flow assembly includes a shell that penetrates through the bottom of the baffle plate. The shell has openings at both ends to connect the two water storage chambers, and a piston is slidably disposed inside the shell. An elastic element is disposed on the side of the piston facing the lower liquid level, and a side groove is opened on the side surface of the shell for connecting the two ends of the shell when the piston overcomes the sliding of the elastic element. Due to the different heights of the north-south and east-west directions of the spoil heap, although... Although each waterway is on the same platform level, in order to improve water flow, the same waterway also has a certain slope. Therefore, this solution sets up water storage components to form multiple water storage chambers for tiered water storage. During drip irrigation, each water storage chamber cannot be connected to replenish each other. To address this, this solution sets up a flow component that opens when the liquid level difference on both sides of the baffle reaches a certain level, allowing water from the upper level water storage chamber to fill the lower level water storage chamber. During drip irrigation, water only needs to be pumped from the downstream water storage chamber. As the water volume decreases, water from the upper level water storage chamber flows in, and so on.

[0015] As a further optimization of the present invention, the opening of the shell facing the side with a higher liquid level is provided with a second hose. The inlet of the second hose is provided with a second filter element and a third buoyancy part. The third buoyancy part is used to keep the inlet of the second hose close to the water surface. When replenishing water downstream between the water storage chambers, the third buoyancy part is provided to keep the suction inlet as close to the water layer as possible, thereby reducing the intake of silt. The second filter element is provided to prevent floating objects such as fallen leaves from entering.

[0016] As a further optimization of the present invention, both the baffle plate and the first limiting part are inclined, and the upper part of the baffle plate is inclined towards the low liquid level direction. The contact surfaces of the baffle plate with the water channel on both sides are provided with first sealing elements, the bottom of the baffle plate is provided with a groove, and the surface of the baffle plate facing the low liquid level direction is provided with a second sealing element, which is adapted to the groove. An elastic skeleton is provided inside the second sealing element. The elastic skeleton is used to remove the silt below the second sealing element when the baffle plate descends. In this solution, by setting the baffle plate inclined and providing a second sealing element with an elastic skeleton at the bottom of the baffle plate, the bottom mud and sand can be removed when the baffle plate descends, preventing the baffle plate from falling on the mud and sand and reducing the water blocking effect.

[0017] In order to implement any of the above-mentioned multi-level restoration systems for the ecological environment of mines, the present invention also proposes a method for multi-level restoration of the ecological environment of mines, comprising the following steps:

[0018] S1: Obtain seeds of shrubs and herbaceous plants from the complete ecological environment surrounding the mine, as well as soil containing microorganisms in their growing areas. Mix the seeds with the corresponding soil to obtain a soil remediation mixture.

[0019] S2: The soil remediation mixture is divided into a first soil mixture and a second soil mixture based on the drought resistance of the seeds of shrubs and herbaceous plants, wherein the seeds in the first soil mixture have a lower drought resistance than the seeds in the second soil mixture.

[0020] S3: Lay the first soil mixture to the top platform of the spoil heap and the shady side of the slope to the preset thickness, and lay the second soil mixture to the sunny side of the slope to the preset thickness.

[0021] S4: The drainage interception component is used to intercept rainwater. When it rains, the rainwater is stored in stages through the water storage chamber. When the water storage chamber is full, the water baffle is lifted by the first buoyancy component. A gap is formed between the water baffle and the bottom of the waterway to flush away the silt at the bottom of the waterway. After the rain stops and a preset time has elapsed, the slope is drip-irrigated through the drip irrigation component.

[0022] The beneficial effects of this invention are as follows: This invention restores the ecological environment through multi-level restoration methods such as interception, water storage, and vegetation restoration. Interception can effectively prevent the loss of a large amount of topsoil from the spoil heap, and the water storage area is large. Except for a small area, most of the rainwater in the entire spoil heap flows into the waterway. Water storage can be used for continuous drip irrigation of the slope, effectively solving the problem of poor water storage capacity of the slope, which leads to low vegetation survival rate. In addition, by setting a first buoyancy part, the water-blocking plate is raised when the rainfall is heavy, and a narrow gap is opened at the bottom of the water-blocking plate, so that the flow velocity of the water in the narrow gap can be increased, and the silt can be effectively removed. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the repair system and spoil heap of the present invention;

[0024] Figure 2 This is a partial schematic diagram of the drainage component of the present invention;

[0025] Figure 3 This is a cross-sectional view of the slope of the spoil heap of the present invention;

[0026] Figure 4 This is a longitudinal cross-sectional view of the drainage component of the present invention;

[0027] Figure 5 This is the invention Figure 1 Schematic diagram of part A in the middle;

[0028] Figure 6 This is the invention Figure 3 Schematic diagram of Part B in the middle section;

[0029] Figure 7 This is the invention Figure 4 Schematic diagram of the structure of part C;

[0030] Figure 8 This is a longitudinal cross-sectional view of the drainage component in the second embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the baffle plate in the second embodiment of the present invention;

[0032] Figure 10 This is the present invention. Figure 8 Enlarged view of section D; In the diagram: 1. Drainage interception assembly; 11. Waterway; 12. Main drainage pipe; 13. Connecting pipe; 14. Stone retaining net; 15. Water storage chamber; 2. Water storage assembly; 21. First limiting part; 22. Water baffle; 23. First buoyancy part; 24. Second limiting part; 25. First sealing element; 26. Groove; 27. Second sealing element; 28. Elastic frame; 3. Drip irrigation assembly; 31. Medium pump; 32. Delivery pipe; 33. Drip irrigation pipe; 34. First flexible hose; 35. First filter element; 36. Second buoyancy part; 37. Medicine tank; 4. Flow assembly; 41. Shell; 42. Second flexible hose; 43. Second filter element; 44. Third buoyancy part; 45. Piston; 46. Elastic element; 47. Side groove; 5. Waste dump; 51. First platform; 52. Slope; 53. Second platform; 54. Access road. Detailed Implementation

[0033] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Example 1

[0035] like Figure 1-7 As shown, a multi-level restoration system for the ecological environment of a mine is disclosed. This system is used for the ecological restoration of spoil heaps in mines, and the spoil heap consists of stepped platforms and slopes. The system includes...

[0036] The interception and drainage assembly 1, which is used to prevent soil erosion, includes waterways 11 set along the edges of each platform and a main drainage pipe 12 connecting each waterway 11.

[0037] The water storage component 2 is used to form multiple gradient water storage chambers 15 in the waterway 11. It includes a baffle plate 22 slidably disposed in the waterway 11 and a first buoyancy part 23 disposed on both sides of the baffle plate 22 near the upper end. The first buoyancy part 23 is used to lift the baffle plate 22 when the water level reaches the height of the first buoyancy part 23, and flush the silt through the gap between the baffle plate 22 and the bottom of the waterway 11.

[0038] The drip irrigation assembly 3, which is used for drip irrigation of vegetation on the slope 52, includes a medium pump 31 that draws water from the water storage chamber 15 and a drip irrigation pipe 33 connected to the medium pump 31.

[0039] like Figure 1 The spoil heap 5 shown includes a first platform 51 at the top, four-layer slopes 52, a second platform 53 set between the slopes 52, and a passageway 54. Waterways 11 are set on the edge of the first platform 51 and the second platform 53. The main drainage pipe 12 is set on the lower side of the spoil heap 5 to facilitate the flow of water from each waterway 11. The drip irrigation components 3 are set in different areas (only a part is shown in the figure) and draw water from the water storage chamber 15.

[0040] This solution employs multi-level restoration methods, including interception, water storage, and vegetation restoration. Interception effectively prevents the loss of topsoil from the spoil heap, and the water storage area is large, with most of the rainwater flowing into the waterway 11 except for a small area. Water storage allows for continuous drip irrigation of the slopes, effectively solving the problem of poor slope water storage capacity leading to low vegetation survival rates. Furthermore, by setting up a first buoyancy section 23, the water-blocking plate 22 is raised during heavy rainfall, creating a narrow gap at the bottom of the water-blocking plate 22 to increase the flow velocity of the water within the narrow gap, thus effectively clearing silt.

[0041] Each waterway 11 is equipped with a connecting pipe 13 at its bottom for connecting to the main drainage pipe 12. A retaining net 14 is installed on the side of the waterway 11 near the high slope 52. The waterway 11 is generally installed at the bottom of each slope 52 and the edge of the first platform 51. When rainwater falls on the slope 52 and flows into the waterway below, it can prevent the water volume of multiple slopes 52 from accumulating and can also reduce the flow of rainwater. The shorter flow can prevent the rainwater flow rate from being too fast and the scouring force on a single slope 52 is smaller. When the rainfall is too heavy, the excess water flows from the waterway 11 into the main drainage pipe 12 and is discharged uniformly.

[0042] The inner wall of the waterway 11 is provided with several pairs of first limiting parts 21. Each pair of first limiting parts 21 forms a sliding space to accommodate the lifting and sliding of the baffle plate 22. The baffle plate 22 is also provided with a second limiting part 24 for limiting the lifting range of the baffle plate 22. This solution uses a modular water storage component 2 to make the repair system compatible with existing mine drainage waterways 11. By fixing the first limiting parts 21 to the existing waterway 11 with bolts and setting the baffle plate 22 to adapt to the cross-sectional shape of the waterway 11, the existing waterway 11 can be modified, which greatly reduces the cost.

[0043] The suction port of the media pump 31 is provided with a first hose 34. One end of the first hose 34 enters the water storage chamber 15, and the end is provided with a first filter element 35 and a second buoyancy part 36. The discharge port of the media pump 31 is provided with a delivery pipe 32, and several drip irrigation pipes 33 are also provided on the delivery pipe 32. The delivery pipe 32 and the drip irrigation pipes 33 are all distributed on the slope 52. This solution uses a media pump 31 to draw water from the water storage chamber 15, and further provides a first hose 34 and a second buoyancy part 36, so that the water intake port floats below the water surface, which can effectively reduce the suction of silt from the bottom.

[0044] The drip irrigation assembly 3 also includes a medicine tank 37 and a proportional adjustment valve. The medicine tank 37 and the first hose 34 are connected to the suction port of the medium pump 31 through the proportional adjustment valve. In order to carry out multi-level soil remediation, this solution adds a medicine to the drip irrigation assembly 3 to add liquid fertilizer and increase soil fertility during drip irrigation.

[0045] Because the north-south and east-west orientations of the spoil heap vary in height, although each waterway 11 is on the same platform level, the same waterway 11 also has a certain slope to improve water flow. Therefore, this solution uses water storage components 2 to form multiple water storage chambers 15 for tiered water storage. However, in this tiered water storage method, each water storage chamber 15 cannot be connected to replenish each other during drip irrigation. Furthermore, setting an intake inlet for each water storage chamber 15 would be too costly and result in complex piping. Therefore, in this implementation, the surface of the baffle plate 22 is also equipped with a flow-through component 4 for... When the liquid level difference between adjacent water storage chambers 15 reaches a preset value, the two water storage chambers 15 are allowed to circulate. This preset value is determined based on the slope of the waterway 11. The circulation component 4 includes a housing 41 that passes through the bottom of the baffle plate 22. The housing 41 has openings at both ends to connect the two water storage chambers 15. A piston 45 is slidably disposed inside the housing 41. An elastic element 46 is disposed on the side of the piston 45 facing the lower liquid level. A side groove 47 is opened on the side surface of the housing 41 to connect the two ends of the housing 41 when the piston 45 overcomes the sliding of the elastic element 46.

[0046] This solution uses a flow component 4 and an elastic element 46 to open the baffle plate 22 when the liquid level difference between the two sides reaches a certain level. It does not open when there is a small liquid level difference caused by the slope of the waterway 11. This allows water from the upper-level water storage chamber 15 to fill the lower-level water storage chamber 15. When pumping water for drip irrigation, water only needs to be pumped from the downstream water storage chamber 15. When the water volume decreases to a certain level, water from the upper-level water storage chamber 15 flows in, and so on.

[0047] The shell 41 has a second hose 42 at the opening facing the side with a higher liquid level. The inlet of the second hose 42 is equipped with a second filter element 43 and a third buoyancy part 44. The third buoyancy part 44 is used to keep the inlet of the second hose 42 close to the water surface. When water is replenished downstream between the water storage chambers 15, the third buoyancy part 44 is set to keep the suction inlet as close to the water layer as possible, reducing the intake of silt. The second filter element 43 is set to prevent floating objects such as fallen leaves from entering.

[0048] In order to implement any of the above-mentioned multi-level restoration systems for the ecological environment of mines, the present invention also proposes a method for multi-level restoration of the ecological environment of mines, comprising the following steps:

[0049] S1: Obtain seeds of shrubs and herbaceous plants from the complete ecological environment surrounding the mine, as well as soil containing microorganisms in their growing areas. Mix the seeds with the corresponding soil to obtain a soil remediation mixture.

[0050] S2: The soil remediation mixture is divided into a first soil mixture and a second soil mixture according to the drought resistance of the seeds of shrubs and herbaceous plants. The seeds in the first soil mixture have lower drought resistance than the seeds in the second soil mixture. The slope is covered with shrubs / herbaceous plants with stronger drought resistance. Combined with drip irrigation, the survival rate can be improved, the soil can be effectively stabilized, and the loss of topsoil can be reduced.

[0051] S3: Lay the first soil mixture to the top platform of the spoil heap and the shady side of the slope to the preset thickness, and lay the second soil mixture to the sunny side of the slope to the preset thickness of 10-15cm.

[0052] S4: The intercepting and drainage component 1 is used to intercept rainwater. When it rains, the rainwater is stored in stages through the water storage chamber 15. When the water storage chamber 15 is full, the water baffle 22 is lifted by the first buoyancy component 23. A gap is formed between the water baffle 22 and the bottom of the waterway 11 to flush the silt at the bottom of the waterway 11. After the rain stops and a preset time has elapsed, the slope is drip-irrigated through the drip irrigation component 3. The preset time for this scheme is 5 days.

[0053] The specific implementation method is as follows: When it rains, rainwater seeps into the soil, and excess rainwater flows into each waterway 11. First, the water storage chamber 15 stores water. When it is full, the rainwater submerges the first buoyancy part 23, and the baffle plate 2 rises. The rainwater is discharged preferentially from the bottom of the waterway 11. This drainage method makes the bottom gap of the baffle plate 22 very small, and the flow rate is faster on the basis of the water drop, which can effectively wash away the sludge at the bottom of the waterway 11 and improve the sludge removal effect. Excess rainwater enters the drainage main pipe 12 from the waterway 11 and is discharged. When the rain stops, the water level in the waterway 11 decreases, and the baffle plate 22 descends until the baffle plate 22 falls completely, forming multiple water storage chambers 15 for water storage.

[0054] During drip irrigation, water is drawn from the water storage chamber 15 by the medium pump 31 to drip irrigate the slope 52. When the liquid level in the water storage chamber 15 drops, the liquid level difference of the upper-level water storage chamber 15 pushes open the piston 45, allowing water to flow in. When the liquid level in the upper-level water storage chamber 15 drops, water is replenished from the even higher-level water storage chamber 15. It should be noted that the water-blocking plate 22 near the main drainage pipe 12 is not equipped with a flow component 4.

[0055] Example 2

[0056] like Figure 8-10 As shown, during the descent and closure of the baffle plate 22, the silt in the waterway 11 may settle below the baffle plate 22, causing gaps after the baffle plate 22 closes and resulting in water leakage that prevents tiered water storage. To solve this problem, in this embodiment, both the baffle plate 22 and the first limiting part 21 are inclined, and the upper part of the baffle plate 22 is inclined towards the lower liquid level direction. First sealing elements 25 are provided on the contact surfaces of the baffle plate 22 and the waterway 11 on both sides. The bottom of the baffle plate 22... The baffle plate 22 has a slot 26, and a second sealing element 27 is provided on the surface facing the low liquid level direction. The second sealing element 27 is adapted to the slot 26. An elastic skeleton 28 is provided inside the second sealing element 27. The elastic skeleton 28 is used to remove the silt under the second sealing element 27 when the baffle plate 22 descends. Specifically, when the baffle plate 22 descends, the second sealing element 27 contacts the bottom of the baffle plate 22. Due to the setting of the elastic skeleton 28, the bottom of the second sealing element 27 slides to the left. Figure 10 (From a certain perspective), the second seal 27 removes the mud and sand, and the baffle plate 22 presses down on the bent second seal 27. The second seal 27 blocks the groove 26, forming a complete sealing structure with the first seal 25, thereby improving water storage capacity. The above embodiments only illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A multi-level restoration system for the ecological environment of a mine, the system being used for the ecological restoration of spoil heaps in the ecological environment of a mine, wherein the spoil heap consists of a stepped platform and slopes, characterized in that: The system includes The interception and drainage assembly (1), which is used to prevent soil erosion, includes waterways (11) set along the edges of each platform and a main drainage pipe (12) connecting each waterway (11). The water storage component (2) is used to form multiple gradient water storage chambers (15) in the waterway (11), including a baffle plate (22) slidably disposed in the waterway (11) and a first buoyancy part (23) disposed on both sides near the upper end of the baffle plate (22). The first buoyancy part (23) is used to lift the baffle plate (22) when the water level reaches the height of the first buoyancy part (23) and flush the silt through the gap between the baffle plate (22) and the bottom of the waterway (11). The drip irrigation assembly (3), which is used for drip irrigation of vegetation on the slope, includes a medium pump (31) that draws water from a water storage chamber (15) and a drip irrigation pipe (33) connected to the medium pump (31). The surface of the baffle plate (22) is also provided with a flow component (4) for allowing the two water storage chambers (15) to flow when the liquid level difference between adjacent water storage chambers (15) reaches a preset value. The flow component (4) includes a housing (41) that is disposed through the bottom of the baffle plate (22). The housing (41) has openings at both ends to connect the two water storage chambers (15) on both sides. A piston (45) is slidably disposed inside the housing (41). An elastic element (46) is disposed on the side of the piston (45) facing the lower liquid level. A side groove (47) is opened on the side surface of the housing (41) for connecting the two ends of the housing (41) when the piston (45) slides against the elastic element (46). The shell (41) has a second hose (42) at the opening facing the side with a higher liquid level. The inlet of the second hose (42) is provided with a second filter element (43) and a third buoyancy part (44). The third buoyancy part (44) is used to keep the inlet of the second hose (42) close to the water surface. The baffle plate (22) and the first limiting part (21) are both inclined, and the upper part of the baffle plate (22) is inclined towards the low liquid level direction. The baffle plate (22) has a first sealing element (25) on both sides of the contact surface with the water channel (11). The bottom of the baffle plate (22) has a slot (26). The surface of the baffle plate (22) facing the low liquid level direction is provided with a second sealing element (27). The second sealing element (27) is adapted to the slot (26). An elastic skeleton (28) is provided inside the second sealing element (27). The elastic skeleton (28) is used to remove the silt under the second sealing element (27) when the baffle plate (22) falls.

2. The multi-level restoration system for the ecological environment of a mine according to claim 1, characterized in that: The bottom of each waterway (11) is provided with a connecting pipe (13) for connecting to the main drainage pipe (12), and a rock retaining net (14) is provided on the side of the waterway (11) near the high slope.

3. The multi-level restoration system for the ecological environment of a mine according to claim 1, characterized in that: The inner wall of the waterway (11) is provided with a number of first limiting parts (21), and a sliding space is formed between each pair of first limiting parts (21) to accommodate the lifting and sliding of the baffle plate (22). The baffle plate (22) is also provided with a second limiting part (24) for limiting the lifting range of the baffle plate (22).

4. The multi-level restoration system for the ecological environment of a mine according to claim 1, characterized in that: The suction port of the media pump (31) is provided with a first hose (34), one end of the first hose (34) enters the water storage chamber (15), and the end is provided with a first filter element (35) and a second buoyancy part (36). The discharge port of the media pump (31) is provided with a delivery pipe (32), and a number of drip irrigation pipes (33) are also provided on the delivery pipe (32). The delivery pipe (32) and the drip irrigation pipes (33) are all distributed on the slope.

5. A multi-level restoration system for the ecological environment of a mine according to claim 4, characterized in that: The drip irrigation assembly (3) also includes a medicine tank (37) and a proportional control valve, wherein the medicine tank (37) and the first hose (34) are connected to the suction port of the media pump (31) through the proportional control valve.

6. A restoration method based on the multi-level restoration system for mine ecological environment according to any one of claims 1-5, characterized in that: Includes the following steps: S1: Obtain seeds of shrubs and herbaceous plants from the complete ecological environment surrounding the mine, as well as soil containing microorganisms in their growing areas. Mix the seeds with the corresponding soil to obtain a soil remediation mixture. S2: The soil remediation mixture is divided into a first soil mixture and a second soil mixture based on the drought resistance of the seeds of shrubs and herbaceous plants, wherein the seeds in the first soil mixture have a lower drought resistance than the seeds in the second soil mixture. S3: Lay the first soil mixture to the top platform of the spoil heap and the shady side of the slope to the preset thickness, and lay the second soil mixture to the sunny side of the slope to the preset thickness. S4: The intercepting and drainage component (1) is used to intercept rainwater. When it rains, the rainwater is stored in stages through the water storage chamber (15). When the water storage chamber (15) is full, the water baffle (22) is lifted by the first buoyancy part (23). A gap is formed between the water baffle (22) and the bottom of the waterway (11) to flush the silt at the bottom of the waterway (11). After the rain stops and a preset time is reached, the slope is drip-irrigated through the drip irrigation component (3).

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