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Heavy metal mine slope spray-seeding material as well as preparation method and application thereof

A technology of heavy metals and mines, which is applied in the direction of botany equipment and methods, applications, and land preparation methods, can solve the problems of restricting the promotion and application of spraying technology, high heavy metal content in slope soil, and poor long-term growth of vegetation, so as to achieve easy The effect of large-scale production and application, high seed germination rate and survival rate, and strong cementing performance

Active Publication Date: 2022-03-11
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when spraying technology is applied to the treatment of heavy metal mine slopes, it cannot avoid the adverse effects of heavy metal pollution. Problems such as easy fall off of the spraying layer and poor long-term growth of vegetation are still difficult to solve, which limits the spraying technology. Popularization and application in the treatment of heavy metal mine slopes
[0005] Based on this, how to develop a new heavy metal mine slope spraying material to solve the problems of poor cohesion, easy peeling of the covering layer and high maintenance cost in the process of applying the existing spraying materials to the heavy metal mine slope treatment, And problems such as low vegetation survival rate caused by high heavy metal content in slope soil are technical problems that need to be solved urgently

Method used

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  • Heavy metal mine slope spray-seeding material as well as preparation method and application thereof
  • Heavy metal mine slope spray-seeding material as well as preparation method and application thereof
  • Heavy metal mine slope spray-seeding material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) S95 grade mineral powder, cement clinker, desulfurization ash and water glass are mixed according to the ratio shown in Table 1, prepare metal stabilizer;

[0037] (2) Metal stabilizer, planting soil, biochar, plant fiber, water-retaining agent and greening additive are mixed uniformly by the ratio shown in table 2, obtain heavy metal slope spraying material; Wherein, water-retaining agent is polyacrylamide; The greening additive includes 60wt% of humus, 20wt% of compound bacterial agent and 20wt% of bentonite,

[0038] (3) After mixing the heavy metal slope spraying material with water in a ratio of 1:3, add it to the spraying equipment;

[0039] (4) Use the spraying equipment to evenly spray the prepared heavy metal mine slope spraying material on the slope surface that needs to be protected. Among them, the output capacity of the pump body of the equipment is 100L / min, the volume of the tank is 330 liters, the working time at full load is 3 minutes, and the spra...

Embodiment 2

[0041] (1) S95 grade mineral powder, cement clinker, desulfurization ash and water glass are mixed according to the ratio shown in Table 1, prepare metal stabilizer;

[0042](2) Metal stabilizer, planting soil, biochar, plant fiber, water-retaining agent and greening additive are mixed uniformly by the ratio shown in table 2, obtain heavy metal slope spraying material; Wherein, water-retaining agent is polyacrylamide; Greening additives include humus 70wt%, composite bacterial agent 20wt% and bentonite 10wt%,

[0043] (3) After mixing the heavy metal slope spraying material with water in a ratio of 1:4, add it to the spraying equipment;

[0044] (4) Use the spraying equipment to evenly spray the prepared heavy metal mine slope spraying material on the slope surface that needs to be protected. Among them, the output capacity of the pump body of the equipment is 80L / min, the volume of the tank is 400 liters, the working time at full load is 5 minutes, and the spraying radius is...

Embodiment 3

[0046] (1) S95 grade mineral powder, cement clinker, desulfurization ash and water glass are mixed according to the ratio shown in Table 1, prepare metal stabilizer;

[0047] (2) Mix metal stabilizer, planting soil, biochar, plant fiber, water-retaining agent and greening additive in the ratio shown in Table 2, to obtain heavy metal slope spraying material; wherein, water-retaining agent is starch grafted acrylic acid Salt; Greening additives include humus 80wt%, composite bacterial agent 10wt% and bentonite 10wt%,

[0048] (3) After mixing the heavy metal slope spraying material with water in a ratio of 1:2, add it to the spraying equipment;

[0049] (4) Use the spraying equipment to evenly spray the prepared heavy metal mine slope spraying material on the slope surface that needs to be protected. Among them, the output capacity of the pump body of the equipment is 50L / min, the volume of the tank is 300 liters, the working time at full load is 6 minutes, and the spraying rad...

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Abstract

The invention provides a heavy metal mine slope spray-seeding material which comprises the following components in percentage by mass: 10-15% of a metal stabilizing agent, 71-80% of planting soil, 0.5-2% of a water-retaining agent, 3-5% of biochar, 1-2% of plant fiber and 3-5% of a greening additive, wherein the metal stabilizing agent is prepared from S95-grade mineral powder, cement clinker, desulfurized fly ash and water glass. The heavy metal mine slope spray-seeding material provided by the invention has strong cementation performance, and long-term stability of a covering layer structure is ensured. Besides, the spray-seeding material can also provide sufficient physical structures and nutrient components for long-term growth of plants, adverse effects of heavy metal pollution on vegetation growth are avoided, and the slope vegetation recovery effect is maintained for a long time. The heavy metal mine slope spray-seeding material provided by the invention is simple in preparation process, low in cost and easy for large-scale production and application, and compared with a traditional heavy metal mine slope treatment method, the treatment cost can be remarkably reduced, and a better protection effect can be achieved.

Description

technical field [0001] The invention belongs to the technical field of protection against environmental heavy metal pollution, and in particular relates to a heavy metal mine slope spraying material and a preparation method and application thereof. Background technique [0002] While large-scale and high-intensity mineral resource development activities have contributed to national energy security and economic development, they have also brought serious environmental problems. During the mining process of heavy metal mines, a large number of slopes are often excavated, which destroys the original vegetation cover, resulting in a large number of secondary bare land, serious water and soil erosion, and exacerbated the degradation of the ecosystem. It is especially obvious in areas with fragile ecological environments, such as the loess in northern my country and the weathered granite laterite in the south. In addition, due to the disturbance of the geological environment and l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/10A01G24/12A01G24/20A01G24/22A01G24/17A01G24/18A01G24/35A01G24/23A01G24/28A01G24/15A01B79/02A01C7/00
CPCA01G24/10A01G24/12A01G24/20A01G24/22A01G24/17A01G24/18A01G24/35A01G24/23A01G24/28A01G24/15A01B79/02A01C7/00
Inventor 邵雁胡国峰许晓明郭华军陈堃刘子豪向浩蒋庆肯刘颖姜明明杨振
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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