Mine restoration system for remodeling landform by using modified phosphogypsum

Abstract

The utility model relates to the technical field of mine repair, in particular to a mine repair system for remodeling landforms by using modified phosphogypsum, which comprises a repair filling structure, the repair filling structure is positioned on the outer side of a mine body, a foundation is arranged at the bottom of the repair filling structure, and an anti-seepage structure is arranged on the outer surface of the repair filling structure. The repairing and filling structure comprises a flow guide layer, two percolate discharge pipes are transversely arranged in the flow guide layer, a protective layer is arranged on the outer surface of the flow guide layer, and the anti-seepage structure comprises an upper anti-seepage part and a lower anti-seepage part. Specifically, according to the structure, the modified phosphogypsum is used as a main repairing material, waste recycling is achieved, the repairing cost is reduced, and due to the excellent environment-friendly performance and engineering characteristics of the modified phosphogypsum, recovery of the mine ecological environment is effectively promoted. By arranging an anti-seepage structure, leakage of harmful substances is effectively prevented, and the safety of the surrounding environment is protected. Due to the design of a flow guide layer and a leachate discharge pipe, leachate generated in the repairing process can be rapidly discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of mine restoration, and specifically, to a mine restoration system for reshaping landforms with modified phosphogypsum. Background Art

[0002] With the rapid development of industrialization, the mining activities of mine resources are becoming increasingly frequent, resulting in serious damage to the landforms of many mining areas and great impact on the ecological environment. In order to restore the ecological environment and landforms of mining areas, effective restoration measures need to be taken. Traditional mine restoration methods often use natural materials, but due to factors such as material sources and costs, their application effects and restoration efficiencies need to be improved. In recent years, modified phosphogypsum, as a new type of mine restoration material, has gradually attracted people's attention.

[0003] Phosphogypsum is a waste in industrial production. After being modified, it can be transformed into a useful mine restoration material. Modified phosphogypsum not only has a wide source and low cost, but also has good environmental protection performance and engineering characteristics. Therefore, it has broad application prospects in the field of mine restoration. However, how to reasonably and effectively use modified phosphogypsum for mine restoration and improve the restoration effect and efficiency is an urgent problem to be solved at present. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a mine restoration system for reshaping landforms with modified phosphogypsum, so as to solve the problem of how to reasonably and effectively use modified phosphogypsum for mine restoration and improve the restoration effect and efficiency as proposed in the above background art.

[0005] To achieve the above purpose, the utility model provides a mine restoration system for reshaping landforms with modified phosphogypsum, including a repair and filling structure. The repair and filling structure is located outside the mine body, a foundation is arranged at the bottom of the repair and filling structure, an anti-seepage structure is arranged on the outer surface of the repair and filling structure. The repair and filling structure includes a diversion layer, two leachate discharge pipes are horizontally arranged inside the diversion layer, a protective layer is arranged on the outer surface of the diversion layer, and the anti-seepage structure includes an upper anti-seepage part and a lower anti-seepage part.

[0006] Preferably, a retaining body is installed on one side of the bottom of the repair and filling structure.

[0007] Preferably, the diversion layer is stacked by pebble materials.

[0008] Preferably, the protective layer is made of geotextile materials.

[0009] Preferably, the leachate discharge pipe includes a perforated layer, and a blocking layer is arranged on the outer wall of the perforated layer.

[0010] Preferably, a number of micropores are provided on the surface of the perforated layer, and the barrier layer is made of geotextile material.

[0011] Preferably, the upper anti-seepage part includes a surface soil covering layer, an upper anti-seepage material layer is provided inside the surface soil covering layer, and a top compaction layer is provided inside the upper anti-seepage material layer.

[0012] Preferably, the lower anti-seepage part includes a bottom compaction layer, a lower anti-seepage material layer is provided inside the bottom compaction layer, and a material backfill layer is provided inside the lower anti-seepage material layer.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the mine restoration system for reshaping landforms with modified phosphogypsum, through scientific structural design and innovative material application, the effect and efficiency of mine restoration have been significantly improved. Specifically, this structure uses modified phosphogypsum as the main restoration material, which not only realizes the reuse of waste, reduces the restoration cost, but also effectively promotes the restoration of the mine ecological environment due to its excellent environmental protection performance and engineering characteristics. In addition, by setting up an anti-seepage structure, the leakage of harmful substances is effectively prevented, protecting the safety of the surrounding environment. The design of the diversion layer and the leachate discharge pipe can quickly drain the leachate generated during the restoration process, preventing the accumulation of liquid and the damage to the restoration structure. At the same time, the setting of the protective layer and the retaining body further enhances the stability and durability of the entire restoration structure. Generally speaking, this utility model is not only technically advanced and feasible, but also has significant economic and environmental benefits, providing a new and efficient solution for mine restoration projects. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the restoration filling structure in the present utility model;

[0017] Figure 3 is a schematic diagram of the leachate discharge pipe in the present utility model;

[0018] Figure 4 is a schematic diagram of the upper anti-seepage part of the present utility model;

[0019] Figure 5 is a schematic diagram of the lower anti-seepage part of the present utility model.

[0020] The meanings of the various reference numerals in the figure are as follows:

[0021] 1. Mine body; 2. Foundation; 3. Repair and filling structure; 31. Diversion layer; 32. Leachate discharge pipe; 321. Perforated layer; 322. Barrier layer; 4. Retaining body; 5. Anti-seepage structure; 51. Surface soil covering layer; 52. Upper anti-seepage material layer; 53. Top compaction layer; 54. Bottom compaction layer; 55. Lower anti-seepage material layer; 56. Material backfill layer; 6. Protection layer. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] The present invention provides a mine restoration system for remolding landforms with modified phosphogypsum, as Figures 1 - 5 shown, including a repair and filling structure 3. The repair and filling structure 3 is located outside the mine body 1. A foundation 2 is provided at the bottom of the repair and filling structure 3. An anti-seepage structure 5 is provided on the outer surface of the repair and filling structure 3. The repair and filling structure 3 includes a diversion layer 31. Two leachate discharge pipes 32 are horizontally arranged inside the diversion layer 31. A layer of protection layer 6 is provided on the outer surface of the diversion layer 31. The anti-seepage structure 5 includes an upper anti-seepage part and a lower anti-seepage part.

[0024] In this embodiment, a retaining body 4 is installed on one side of the bottom of the repair and filling structure 3 to facilitate the blocking at the bottom of the repair and filling structure 3 and avoid landslides.

[0025] Specifically, the diversion layer 31 is stacked by pebble materials, which is convenient for blocking impurities and facilitating the entry of leachate.

[0026] Furthermore, the protection layer 6 is made of geotextile material, which ensures water permeability and can protect the repair and filling structure 3.

[0027] Furthermore, the leachate discharge pipe 32 includes a perforated layer 321, and a barrier layer 322 is provided on the outer wall of the perforated layer 321.

[0028] Furthermore, a number of micropores are provided on the surface of the perforated layer 321 to facilitate the penetration of water flow. The barrier layer 322 is made of geotextile material to prevent external sediment from entering.

[0029] Furthermore, the upper anti-seepage part includes a surface soil covering layer 51. An upper anti-seepage material layer 52 is provided inside the surface soil covering layer 51. A top compaction layer 53 is provided inside the upper anti-seepage material layer 52. Through the multi-layer setting, a good anti-seepage effect is ensured.

[0030] Furthermore, the lower anti-seepage part includes a bottom compaction layer 54. An inner side of the bottom compaction layer 54 is provided with a lower anti-seepage material layer 55, and an inner side of the lower anti-seepage material layer 55 is provided with a material backfill layer 56. Through the multi-layer arrangement, a good anti-seepage effect is ensured.

[0031] When the mine restoration system for remolding landforms with modified phosphogypsum of the present utility model is in use, first, the repair filling structure 3 is repaired. This is the core part of the entire repair structure. It is arranged outside the mine body 1 and is firmly arranged on the foundation 2 at the bottom. The repair filling structure 3 is mainly composed of modified phosphogypsum. This material has been specially treated and has good stability and environmental protection performance.

[0032] In the repair filling structure 3, the diversion layer 31 plays a key role. The diversion layer 31 is stacked by pebble materials. Such a design not only facilitates the blocking of impurities but also allows leachate to enter. When rainwater or groundwater penetrates into the repair filling structure 3, the diversion layer 31 can effectively guide this moisture and filter out the impurities therein.

[0033] Meanwhile, two leachate discharge pipes 32 are horizontally arranged inside the diversion layer 31. The design of these two discharge pipes is very ingenious. They include a perforated layer 321. The surface of the perforated layer 321 is provided with a number of micropores to facilitate the flow of water through. The blocking layer 322 is made of geotextile material and can effectively prevent external sediment from entering the discharge pipe, ensuring the smoothness of the discharge pipe.

[0034] When the leachate flows through the diversion layer 31, it will enter the leachate discharge pipe 32 through the micropores of the perforated layer 321 and then flow out along the discharge pipe, thus avoiding the accumulation of leachate inside the repair structure.

[0035] In addition, an anti-seepage structure 5 is provided on the outer surface of the repair filling structure 3. It includes an upper anti-seepage part and a lower anti-seepage part. Both of these two parts ensure a good anti-seepage effect through multi-layer arrangements. The upper anti-seepage part is composed of a surface soil covering layer 51, an upper anti-seepage material layer 52, and a top compaction layer 53. The lower anti-seepage part is composed of a bottom compaction layer 54, a lower anti-seepage material layer 55, and a material backfill layer 56. The design of these layers can effectively prevent the leakage of water and pollutants and protect the safety of the surrounding environment.

[0036] Finally, it is worth mentioning that a retaining body 4 is also installed on one side of the bottom of the repair filling structure 3. This retaining body can play a role in stabilizing the repair filling structure and avoid potential safety hazards such as landslides.

[0037] In summary, the mine restoration system for remolding landforms with modified phosphogypsum of the present utility model realizes the effective restoration of the mine landform and the protection of the ecological environment through scientific design and ingenious structure.

[0038] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A mine restoration system for reshaping landforms using modified phosphogypsum, comprising a restoration filling structure (3), characterized in that: The repair filling structure (3) is located outside the mine body (1), a foundation (2) is arranged at the bottom of the repair filling structure (3), an anti-seepage structure (5) is arranged on the external surface of the repair filling structure (3), the repair filling structure (3) comprises a guide layer (31), two leachate discharge pipes (32) are arranged transversely inside the guide layer (31), a protective layer (6) is arranged on the external surface of the guide layer (31), and the anti-seepage structure (5) comprises an upper anti-seepage part and a lower anti-seepage part.

2. The mine restoration system for reshaping landforms using modified phosphogypsum according to claim 1 is characterized by: A blocking body (4) is installed on one side of the bottom of the repair filling structure (3).

3. The mine restoration system for reshaping landforms using modified phosphogypsum according to claim 1 is characterized by: The guide layer (31) is made of stacked pebble materials.

4. The mine restoration system for reshaping landforms using modified phosphogypsum according to claim 1 is characterized by: The protective layer (6) is made of geotextile material.

5. The mine restoration system for reshaping landforms using modified phosphogypsum according to claim 1 is characterized by: The leachate discharge pipe (32) comprises a perforated layer (321), and the outer wall of the perforated layer (321) is provided with a barrier layer (322).

6. The mine restoration system for reshaping landforms using modified phosphogypsum according to claim 5 is characterized by: The surface of the perforated layer (321) is provided with a plurality of micropores, and the barrier layer (322) is made of geotextile material.

7. The mine restoration system for reshaping landforms using modified phosphogypsum according to claim 1 is characterized by: The upper anti-seepage part comprises a surface covering soil layer (51), an upper anti-seepage material layer (52) is arranged on the inner side of the surface covering soil layer (51), and a top compaction layer (53) is arranged on the inner side of the upper anti-seepage material layer (52).

8. The mine restoration system for reshaping landforms using modified phosphogypsum according to claim 1 is characterized by: The lower anti-seepage part comprises a bottom compacted layer (54), a lower anti-seepage material layer (55) is arranged on the inner side of the bottom compacted layer (54), and a material backfilling layer (56) is arranged on the inner side of the lower anti-seepage material layer (55).

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