Biomass matrix module structure for mine rehabilitation

Abstract

The utility model provides a kind of biomass matrix module structure for mine repair. The module structure is regular hexagonal prism structure, including upper layer planting area and lower layer function framework area, and the lower layer function framework area is honeycomb support structure, and each honeycomb unit is filled with water-absorbing particles;The planting area is six prism hollow cavity, and the planting area and the lower layer function framework area are communicated by multiple root guide tubes;The two sides of the module structure are symmetrically provided with mutually matched first connecting component and second connecting component, and when two adjacent module structures are spliced, the first connecting component on one side of one module structure is spliced with the second connecting component on the other side of another module structure. The utility model can provide the nutrition required for plant growth, and has excellent water absorption and water retention capacity, and also has plant growth support and water regulation and control functions.

Description

Technical Field

[0001] This utility model relates to the field of mine ecological restoration technology, specifically a biomass-based module structure for mine restoration. Background Technology

[0002] With the rapid development of my country's economy, mineral resources are widely used in all walks of life and production. However, after mining, large and small waste rock piles and tailings piles are left behind, which seriously damage the geographical features and geological environment near the mines. This leaves behind many problems such as mine pits, steep slopes, large amounts of solid waste accumulation, isolated hills, and working faces. After mine ecological restoration, vegetation survival is a top priority. Frequent artificial irrigation or the addition of sprinkler pipes is required, which increases the cost and difficulty of maintenance.

[0003] Especially in mine remediation projects in arid and semi-arid regions, water scarcity is a key factor limiting vegetation restoration. Ordinary biochar matrices struggle to maintain the water supply necessary for normal plant growth under water-scarce conditions, requiring frequent artificial irrigation, which increases maintenance costs and complexity. While absorbent resins, as high-performance water-absorbing materials, have applications in agriculture and horticulture, their direct use in mine remediation faces challenges such as high cost, poor compatibility with substrates, and mismatched degradation cycles. Therefore, how to organically combine absorbent resins with biomass matrices to form a synergistic composite structure has become a technical problem that needs to be solved in this field. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a biomass matrix module structure for mine restoration. This module structure is easy to assemble and can be used for paving on slopes, improving the water absorption rate and water retention capacity of the matrix, reducing irrigation frequency, maintaining the original environmentally friendly characteristics of the biomass matrix, adapting to the needs of mine restoration in arid and water-scarce areas, and reducing later maintenance costs.

[0005] To achieve the above-mentioned technical objectives, this utility model provides a biomass-based modular structure for mine remediation. The modular structure is a regular hexagonal prism, including an upper planting area and a lower functional frame area. The lower functional frame area is a honeycomb support structure, with each honeycomb unit filled with water-absorbing particles. The planting area is a hexagonal prism hollow cavity, and the planting area and the lower functional frame area are connected by multiple root canals. The two sides of the modular structure are symmetrically provided with matching first and second connecting parts. When two adjacent modular structures are spliced, the first connecting part on one side of one modular structure is spliced ​​with the second connecting part on the other side of the other modular structure.

[0006] The preferred technical solution of this utility model is as follows: the skeleton of the honeycomb support structure is formed by molding and curing biochar and binder; the water-absorbing particles include water-absorbing resin or biochar or a mixture of both; the mass ratio of water-absorbing resin to biochar is 1:5-1:10.

[0007] The preferred technical solution of this utility model is that the bottom surface connecting the planting area and the functional frame area is made of permeable material or has multiple permeable holes with a diameter smaller than that of the planting soil particles.

[0008] The preferred technical solution of this utility model is as follows: the root canals are of different lengths, with the lower part inserted into the functional frame area and the upper part inserted into the soil layer of the planting area.

[0009] The preferred technical solution of this utility model is as follows: the first connecting component and the second connecting component are arranged on two opposite sides of the planting area, and the first connecting component and the second connecting component are mutually matched card slot and card block components.

[0010] The preferred technical solution of this utility model is as follows: the thickness of the lower functional frame area accounts for 1 / 4 to 1 / 3 of the total height of the module, and the thickness of the upper planting area accounts for 2 / 3 to 3 / 4 of the total height of the module; the upper planting area is filled with pure biochar matrix.

[0011] The preferred technical solution of this utility model is that the water absorption ratio of the water-absorbing particles in the lower functional frame area is 150-300 times, and the water retention time is 20-60 days.

[0012] The preferred technical solution of this utility model is that the root canal is made of biodegradable fibrous material and its interior is filled with hydrophilic fiber bundles.

[0013] The preferred technical solution of this utility model is that the water-absorbing resin is one or more of sodium polyacrylate-based water-absorbing resin, starch-grafted acrylate, or cellulose-grafted acrylate.

[0014] The beneficial effects of this utility model are:

[0015] (1) The functional frame area of ​​the lower layer of this utility model can quickly absorb and store water during the rainy season or irrigation, and slowly release it for plants to use during drought, forming a "miniature reservoir" effect.

[0016] (2) The functional frame area of ​​the honeycomb of this utility model adopts a honeycomb structure. The honeycomb structure is one of the lightest and strongest structures in nature. This design greatly enhances the overall compressive and shear strength of the pot and can effectively withstand the pressure of the upper soil and external impact. Moreover, the honeycomb unit provides a preset space for the expansion of the water-absorbing material, avoiding the risk of the pot bursting after absorbing water, and achieving a water storage volume ratio far exceeding that of the solid structure. The honeycomb structure can also naturally guide the roots to grow downward and outward in an orderly manner along the skeleton, forming a strong anchoring root network.

[0017] (2) This utility model adopts a regular hexagon, which is the best shape for seamlessly paving a flat surface; this design allows countless pots to be tightly spliced ​​on the slope to form a continuous, stable, and integrated slope protection surface, eliminating structural weaknesses. The modules of this utility model can be spliced ​​together like building blocks, which can be quickly laid on complex terrain, greatly reducing construction difficulty and cost, and making construction convenient;

[0018] (3) The modules of this utility model can be clamped together by the connection structure, so that after the adjacent pots are spliced, they are not only interlocked in the horizontal direction, but also locked in the vertical (gravity) direction, forming a mechanically extremely stable "three-dimensional network" that effectively resists the slippage and settlement of the slope.

[0019] (4) The active capillary seepage irrigation and root canal system of this utility model - through capillary action, the root canal can actively and continuously "pump" the water of the lower water storage layer to the upper planting layer or even the soil surface, realizing automatic seepage irrigation from bottom to top, and the water supply efficiency is far superior to the passive mode that relies on the natural search of the root system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the honeycomb functional frame in this utility model;

[0022] Figure 3 This is a schematic diagram of the splicing of two modular structures of this utility model;

[0023] Figure 4 It is a plan view showing the assembly of multiple modular structures.

[0024] In the diagram: 1. Planting area; 2. Functional frame area; 201. Honeycomb unit; 202. Water-absorbing particles; 3. Root canal; 4. First connecting component; 5. Second connecting component. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0026] The embodiment provides a biomass-based module structure for mine remediation, such as... Figures 1 to 4As shown, the module structure is a regular hexagonal prism, including an upper planting area 1 and a lower functional frame area 2. The thickness of the lower functional frame area 2 accounts for 1 / 4 to 1 / 3 of the total height of the module, and the thickness of the upper planting area accounts for 2 / 3 to 3 / 4 of the total height of the module. The upper planting area 1 is filled with pure biochar matrix. The lower functional frame area 2 is a honeycomb support structure, and each honeycomb unit 201 is filled with water-absorbing particles 202. The planting area 1 is a hexagonal prism hollow cavity, and the planting area 1 and the lower functional frame area 2 are connected by multiple root canals 3. The two sides of the module structure are symmetrically provided with matching first connecting parts 4 and second connecting parts 5. When two adjacent module structures are spliced, the first connecting part 4 on one side of one module structure is spliced ​​with the second connecting part 5 on the other side of the other module structure.

[0027] In this embodiment, the honeycomb support structure's skeleton is formed by molding and curing biochar and a binder; the water-absorbing particles 202 comprise a mixture of water-absorbing resin and biochar particles. The mass ratio of water-absorbing resin to biochar is 1:8, and the water-absorbing resin is one or more of sodium polyacrylate-based water-absorbing resin, starch-grafted acrylate, or cellulose-grafted acrylate. The water absorption ratio of the water-absorbing particles 202 in the lower functional frame region 2 is 150-300 times, and the water retention time is 20-60 days.

[0028] In this embodiment, the bottom surface connecting the planting area 1 and the functional frame area 2 is made of a permeable material or has multiple permeable holes with a diameter smaller than that of the planting soil particles. The root guide tubes 3 are of different lengths, with the lower part inserted into the functional frame area 2 and the upper part inserted into the soil layer of the planting area 1. The root guide tubes 3 are made of biodegradable fibrous material and are filled with hydrophilic fiber bundles. The first connecting component 4 and the second connecting component 5 are arranged on two opposite sides of the planting area 1, and the first connecting component 4 and the second connecting component 5 are mutually matching slot and block components.

[0029] This invention employs a layered structural design, comprising an upper biochar planting area 1 and a lower functional frame area 2. In use, it can be directly laid or fixed onto the slope. Adjacent modules are connected by slots and blocks, forming a regular hexagonal shape that allows for seamless, close-fitting application on a flat surface. This enables numerous modules to be tightly joined on the slope, forming a continuous, stable, and integrated slope protection surface, eliminating structural weaknesses. The upper planting area 1 is filled with pure biochar matrix for planting. The lower functional frame area rapidly absorbs and stores water during the rainy season or irrigation, and slowly releases it for plant use during drought, creating a "miniature reservoir" effect. This structure provides the nutrients needed for plant growth, possesses excellent water absorption and retention capabilities, and simultaneously provides plant growth support and water regulation functions. It is particularly suitable for ecological restoration of mines in arid and water-scarce environments. This invention has a simple structure and is easy to prepare, solving the problems of poor water retention and frequent irrigation required by traditional mine restoration materials. It significantly improves vegetation survival rate and growth quality, reduces irrigation needs, and has significant environmental and economic benefits.

[0030] The above description is merely a detailed description of the specific implementation scheme of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made on the design concept of this utility model should be included within the protection scope of this utility model.

Claims

1. A biomass-based module structure for mine remediation, characterized in that: The module structure is a regular hexagonal prism structure, including an upper planting area (1) and a lower functional frame area (2). The lower functional frame area (2) is a honeycomb support structure, and each honeycomb unit (201) is filled with water-absorbing particles (202). The planting area (1) is a hexagonal prism hollow cavity. The planting area (1) and the lower functional frame area (2) are connected by multiple root canals (3). The two sides of the module structure are symmetrically provided with matching first connecting parts (4) and second connecting parts (5). When two adjacent module structures are spliced, the first connecting part (4) on one side of one module structure is spliced ​​with the second connecting part (5) on the other side of the other module structure.

2. The biomass-based module structure for mine restoration according to claim 1, characterized in that: The skeleton of the honeycomb support structure is formed by molding and curing biochar and binder; the water-absorbing particles (202) include water-absorbing resin or biochar or a mixture of both.

3. A biomass-based module structure for mine remediation according to claim 1 or 2, characterized in that: The bottom surface connecting the planting area (1) and the functional frame area (2) is made of permeable material or has multiple permeable holes with a diameter smaller than that of the planting soil particles.

4. A biomass-based module structure for mine restoration according to claim 1 or 2, characterized in that: The root canals (3) are of different lengths, with the lower part inserted into the functional frame area (2) and the upper part inserted into the soil layer of the planting area (1).

5. A biomass-based module structure for mine remediation according to claim 1 or 2, characterized in that: The first connecting component (4) and the second connecting component (5) are arranged on two opposite sides of the planting area (1). The first connecting component (4) and the second connecting component (5) are matching slot and block components.

6. A biomass-based module structure for mine remediation according to claim 1 or 2, characterized in that: The thickness of the lower functional frame area (2) accounts for 1 / 4 to 1 / 3 of the total height of the module, and the thickness of the upper planting area accounts for 2 / 3 to 3 / 4 of the total height of the module; the upper planting area (1) is filled with pure biochar matrix.

7. A biomass-based module structure for mine restoration according to claim 1 or 2, characterized in that: The water absorption ratio of the water-absorbing particles (202) in the lower functional frame area (2) is 150-300 times, and the water retention time is 20-60 days.

8. A biomass-based module structure for mine restoration according to claim 4, characterized in that: The root canal (3) is made of biodegradable fibrous material and is filled with hydrophilic fiber bundles.

9. A biomass-based module structure for mine restoration according to claim 2, characterized in that: The water-absorbing resin is one or more of sodium polyacrylate-based water-absorbing resin, starch-grafted acrylate, or cellulose-grafted acrylate.

Images