Integrated system for mine restoration and ecological restoration

Abstract

The utility model provides an integrated system for mine restoration and ecological restoration, which is characterized by comprising a barrier protection upper layer, a greening structure layer, a barrier protection middle layer, a medicament restoration structure layer and a barrier protection lower layer which are sequentially arranged from top to bottom, the greening structure layer is of a porous sponge structure, and gaps of the porous sponge structure are used for being filled with grass seeds. The medicament repairing structure layer is a geotextile layer, the geotextile layer is provided with a grid frame structure, and a grid sunken area of the grid frame structure is a medicament placing area; the barrier protection upper layer, the barrier protection middle layer and the barrier protection lower layer are all thin film layers.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine pollution control technical field, especially relate to a kind of integrated system for mine restoration and ecological recovery. BACKGROUND

[0002] China is rich in mineral resources, involving mineral type and mining means are various, with the gradual expansion of mine development scale, mine development type and quantity are increasing, part of local mineral resources development mode is extensive and ecological restoration lags behind, and it has a great impact on ecological environment.

[0003] According to the mining mineral and the use mining, mineral processing process is different, mine pollutant type has inorganic pollutant and organic pollutant two categories. Inorganic pollutants mainly include lead, zinc, copper, chromium, cadmium, mercury and other metal elements and cyanide, nitrogen oxide, etc., organic pollutants mainly have benzene, toluene, xylene, ethylbenzene, polycyclic aromatic hydrocarbon, etc. At present, the market has a variety of high-efficiency repair reagent for the above pollutants, and engineering application effect is good.

[0004] Most of the mine surface topography is complex, and the slope gradient is large. The mechanical construction difficulty is large in the implementation process of on-site repair, and the repair cost is high. For mine repair project, not only the pollutants in the site are required to be treated, but also the ecological system of the site is required to be restored. The existing repair technology independently constructs pollution repair and ecological restoration, and the construction cost is increased twice. Based on the above situation, mine repair urgently needs a technology which is convenient to construct, high effective and can realize the integration of mine repair and ecological restoration. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of integrated system for mine restoration and ecological recovery, to solve the construction inconvenient in the existing mine repair, ecological recovery high-cost problem.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of integrated system for mine restoration and ecological recovery, it is characterized in that, including from top to bottom sequentially arranged barrier protection upper layer, green structure layer, barrier protection middle layer, reagent repair structure layer, barrier protection lower layer;Green structure layer is porous sponge structure, and the pore of porous sponge structure is used to fill grass seed;Reagent repair structure layer is geotextile layer, and geotextile layer has grid frame structure, and the lattice recess area of grid frame structure is reagent placement area;Barrier protection upper layer, barrier protection middle layer, barrier protection lower layer are all film layer.

[0008] Further, the integration system for mine repair and ecological restoration provided by the utility model can have the following features: the porous sponge structure is a biological porous sponge.

[0009] Further, the integration system for mine repair and ecological restoration provided by the utility model can have the following features: the thickness of the porous sponge structure is 2cm, and the pore size is 4mm-6mm.

[0010] Further, the integration system for mine repair and ecological restoration provided by the utility model can have the following features: the film layer is a water-soluble film, and the thickness of the upper barrier protection layer, the middle barrier protection layer and the lower barrier protection layer is 2mm.

[0011] Further, the integration system for mine repair and ecological restoration provided by the utility model can have the following features: the medicinal repair structure layer is a geotextile layer woven by plant fibers.

[0012] Further, the integration system for mine repair and ecological restoration provided by the utility model can have the following features: the geotextile layer has an upper structure and a lower structure woven into one, the upper structure is a flat structure, and the lower structure is a grid frame structure.

[0013] Further, the integration system for mine repair and ecological restoration provided by the utility model can have the following features: the thickness of the grid frame structure is 1cm, and the area of a single grid recessed area is greater than or equal to 1cm*1cm.

[0014] Further, the integration system for mine repair and ecological restoration provided by the utility model can have the following features: the upper structure and the lower structure are fixed by degradable fiber sewing.

[0015] Further, the integration system for mine repair and ecological restoration provided by the utility model can have the following features: the integration system is in a roll structure before use.

[0016] The utility model has the following effects:

[0017] The integrated system for mine repair and ecological restoration provided by the utility model realizes two purposes of soil pollution agent repair and ecological repair in one construction: the greening structure layer has good water absorption due to the porous structure, provides moisture for grass seed germination, meanwhile, the biological base porous sponge structure provides a nutrient environment for grass seed germination after degradation; the grid frame structure of the agent repair structure layer can place agents, the agents are dissolved under the action of upper rainwater or irrigation water, enter the soil in the form of solution, and reach the repair effect. The layers of the integrated system of the utility model can be degraded, and will not cause secondary pollution to the land plot. The integrated system for mine repair and ecological restoration of the utility model is the original package before use, is a coiled material, is convenient to lay on site, can utilize the original terrain height difference, is laid from top to bottom, has a short construction period, greatly reduces the construction cost, and is widely applicable. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the integrated system for mine repair and ecological restoration in the embodiment of the utility model;

[0019] Figure 2 is a grid frame structure of the agent repair structure layer in the embodiment of the utility model;

[0020] Figure 3 is a coiled material state schematic view of the integrated system for mine repair and ecological restoration in the embodiment of the utility model before use. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the technical scheme of the utility model is specifically described in the following embodiment in combination with the drawings.

[0022] Referring to Figure 1 , the embodiment provides an integrated system for mine repair and ecological restoration, which comprises, from top to bottom, a barrier protection upper layer 1, a greening structure layer 2, a barrier protection middle layer 3, an agent repair structure layer 4 and a barrier protection lower layer 5.

[0023] The green structure layer 2 is a porous sponge structure, and the porous sponge structure is a biological-based porous sponge. The biological base is plant straw, which provides a nutrient environment for plant germination. For example, a porous sponge structure made of cotton straw in the prior art can be used. The thickness of the porous sponge structure is 2 cm, and the pore size is 4 mm-6 mm. The pores of the porous sponge structure are filled with grass seeds. The grass seeds are selected according to the local climate environment to grow suitable varieties, and three varieties are preferably mixed and filled. Because the thickness of the porous sponge structure is appropriate, it has good water absorption, which ensures the water content of the environment and provides an environment for plant germination. The biological base of the porous sponge is a biodegradable material, which is convenient for the combination of plant roots and soil in the later period, and has no environmental risk.

[0024] The medicament repair structure layer 4 is a geotextile layer woven from plant fibers. For example, a geotextile woven from cotton, hemp and other plant fibers in the prior art has the characteristics of air and water permeability and biodegradability. The geotextile layer as the medicament repair structure layer has an upper structure and a lower structure woven into one body. The upper structure is a flat structure, and the lower structure is a grid frame structure 41. Referring to Figure 2 , the thickness of the grid frame structure 41 is 1 cm, and the area of each grid recessed area is greater than or equal to 1 cm×1 cm. The grid recessed area 4a of the grid frame structure 41 is a medicament placement area. The medicament is a water-soluble solid medicament, which is selected according to the site pollution. After the system is laid, under the action of rainwater or irrigation water, the medicament will dissolve into the soil in the form of a solution to achieve the repair effect.

[0025] The upper barrier protection layer 1, the middle barrier protection layer 3 and the lower barrier protection layer 5 are all film layers. The film layer is a water-soluble film with biodegradability. The main function of the three barrier protection layers is to protect the grass seeds in the green structure layer and the medicament in the medicament repair structure layer from mixing or leaking outside before the system is laid. After the system is laid, the three barrier protection layers will be degraded after a period of time and will not cause secondary pollution. Preferably, the thickness of the upper barrier protection layer 1, the middle barrier protection layer 3 and the lower barrier protection layer 5 is 2 mm.

[0026] After the multi-layer structure of the upper barrier protection layer 1, the green structure layer 2, the middle barrier protection layer 3, the medicament repair structure layer 4 and the lower barrier protection layer 5 of the integrated system for mine repair and ecological restoration of the present embodiment is set, the upper structure and the lower structure are fixed by sewing up and down with degradable fiber threads to ensure the integrity of the material. The integrated system is in a roll structure before use, as shown in Figure 3 .

[0027] The integrated system for mine repair and ecological restoration of the embodiment is not packaged as a cylindrical roll before use, is convenient to lay on site, can utilize the original terrain height difference, is laid from top to bottom, and is suitable for a wide range of applications. The system realizes two purposes of soil pollution repair and ecological repair in one construction, has a fast construction period, and greatly reduces construction cost. In addition, each layer structure of the system is degradable, and does not cause secondary pollution to the land.

[0028] The above embodiments are only preferred embodiments of the utility model, and are not used to limit the protection scope of the utility model. For those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model are included in the protection scope of the utility model.

Claims

1. An integrated system for mine rehabilitation and ecological restoration, characterised in that, The barrier protection upper layer, the greening structure layer, the barrier protection middle layer, the medicament repair structure layer and the barrier protection lower layer are sequentially arranged from top to bottom. The greening structure layer is a porous sponge structure, and the pores of the porous sponge structure are used for filling grass seeds; the medicament repair structure layer is a geotextile layer, and the geotextile layer has a grid frame structure, and the grid recessed area of the grid frame structure is a medicament placement area. The barrier protection upper layer, the barrier protection middle layer and the barrier protection lower layer are all thin film layers.

2. The integrated system for mine repair and ecological restoration according to claim 1, wherein: wherein The porous sponge structure is a bio-based porous sponge.

3. The integrated system for mine repair and ecological restoration according to claim 2, wherein: wherein The thickness of the porous sponge structure is 2 cm, and the pore size is 4 mm-6 mm.

4. The integrated system for mine repair and ecological restoration according to claim 1, wherein: wherein The thin film layer is a water-soluble thin film, and the thickness of the barrier protection upper layer, the barrier protection middle layer and the barrier protection lower layer is all 2 mm.

5. The integrated system for mine repair and ecological restoration according to claim 1, wherein: wherein The medicament repair structure layer is a geotextile layer woven by plant fibers.

6. The integrated system for mine repair and ecological restoration according to claim 5, wherein: wherein, The geotextile layer has an upper structure and a lower structure woven into one body, the upper structure is a flat layer structure, and the lower structure is the grid frame structure.

7. The integrated system for mine repair and ecological restoration according to claim 6, wherein: wherein The thickness of the grid frame structure is 1 cm, and the area of a single grid recessed area is greater than or equal to 1 cm×1 cm.

8. The integrated system for mine repair and ecological restoration according to claim 1, wherein: wherein The upper structure and the lower structure are fixed by degradable fiber stitching.

9. The integrated system for mine repair and ecological restoration according to claim 1, wherein: The integrated system is in a roll structure before use.

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