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Tailing-based artificial garden soil and preparation method thereof

An artificial and garden technology, applied in the field of solid waste resource utilization and ecological restoration, can solve problems such as the shortage of high-quality soil resources for tailings, and achieve the effects of solving the shortage of high-quality soil, low cost of raw materials, and simple and easy preparation process

Inactive Publication Date: 2021-11-30
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of resource utilization of tailings and the shortage of high-quality soil resources, the present invention proposes a preparation method of tailings-based artificial garden soil

Method used

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  • Tailing-based artificial garden soil and preparation method thereof
  • Tailing-based artificial garden soil and preparation method thereof
  • Tailing-based artificial garden soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The raw materials and formula of this embodiment are: 96% of tailings powder under 100 mesh sieve, 4% of ordinary silicon 42.5 cement, 0.1% of aluminum powder, and water-cement ratio of 0.62. The preparation process is as follows: firstly grind the tailings raw materials to a 100-mesh sieve, then quantitatively weigh 960g of tailings powder, 40g of ordinary silicon 42.5 cement, 1g of aluminum powder, and 620g of tap water; Add it into the mixing tank and stir for 5 minutes at a speed of 800 rpm; then add a foaming agent and continue stirring for 30 seconds at a stirring speed of 1200 rpm; then quickly pour the slurry into a 100×100×200 mm In the steel mold, stop foaming for 30 minutes; put the foam and the mold together in the curing box for curing, the curing temperature is 50 ° C, and the curing time is 20 hours; take out the foam and the mold from the oven, and The foam block is removed from the mold and baked in an oven at 105°C for 20 hours; then the dried foam is ...

Embodiment 2

[0032] The raw materials and formula of this embodiment are: 93% of tailings powder under 100 mesh sieve, 7% of ordinary silicon 42.5 cement, 0.3% of aluminum powder, and water-cement ratio of 0.7. The preparation process is as follows: firstly grind the tailings raw materials to a 100-mesh sieve, then quantitatively weigh 930g of tailings powder, 70g of ordinary silicon 42.5 cement, 3g of aluminum powder, and 700g of tap water; Add it into the mixing tank and stir for 5 minutes at a speed of 800 rpm; then add a foaming agent and continue stirring for 30 seconds at a stirring speed of 1200 rpm; then quickly pour the slurry into a 100×100×200 mm In the steel mold, stop foaming for 30 minutes; put the foam and the mold together in the curing box for curing, the curing temperature is 40 ° C, and the curing time is 25 hours; take out the foam and the mold from the oven, and The foam block is removed from the mold and baked in an oven at 105°C for 30 hours; then the dried foam is p...

Embodiment 3

[0034] The raw materials and formula of this embodiment are: 90% of tailings powder under 100 mesh sieve, 10% of ordinary silicon 42.5 cement, 0.3% of aluminum powder, and water-cement ratio of 0.7. The preparation process is as follows: firstly grind the tailings raw materials to a 100-mesh sieve, then quantitatively weigh 900g of tailings powder, 100g of ordinary silicon 42.5 cement, 3g of aluminum powder, and 700g of tap water; Add it into the mixing tank and stir for 5 minutes at a speed of 800 rpm; then add a foaming agent and continue stirring for 30 seconds at a stirring speed of 1200 rpm; then quickly pour the slurry into a 100×100×200 mm In the steel mold, stop foaming for 30 minutes; put the foam and the mold together into the curing box for curing, the curing temperature is 50 ° C, and the curing time is 15 hours; take out the foam and the mold from the oven, and The foam block is removed from the mold and baked in an oven at 105°C for 20 hours; then the dried foam ...

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Abstract

The invention discloses tailing-based artificial garden soil and a preparation method thereof, belongs to the technical field of solid waste resource utilization and ecological restoration, and aims to solve the problem of tailing resource utilization and the problem of high-quality soil resource shortage. The preparation method comprises the following steps: grinding tailings into powder, adding a gelling material and water to prepare slurry, adding a foaming agent into the slurry, and performing injection molding and foaming, and after the foaming body is cured and formed, crushing the molded blocks into particles, so as to obtain the tailing-based artificial garden soil. The artificial garden soil is prepared by taking the tailings as the main raw material, so that the tailings can be efficiently utilized on a large scale, a source of soil with excellent properties such as water retention, loss resistance, air permeability and heat preservation can be provided, and the artificial garden soil can be used for ecological restoration, and is beneficial to plant growth and prevention of water and soil loss.

Description

technical field [0001] The invention belongs to the technical field of solid waste resource utilization and ecological restoration, and in particular relates to tailings-based artificial garden soil and a preparation method thereof. Background technique [0002] Tailings are solid wastes generated in mineral processing and sorting operations. They occupy a large amount of land, require a large investment in stockpiling, and are likely to cause problems such as environmental pollution, soil erosion, and preparation damage in mining areas. They are currently the largest industrial solid waste in stockpiles. One, there is an urgent need for efficient utilization of resources. [0003] On the other hand, because a large part of the soil in the world is in an unhealthy and sub-healthy state, there are few soils with excellent properties such as water retention, loss resistance, and heat preservation, and soil resources are becoming increasingly scarce. The artificial garden soil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/02C04B28/14C04B18/12C04B18/04C04B14/10A01G24/10A01G24/15A01G24/48A01G24/42
CPCC04B28/021C04B28/04C04B28/143C04B28/144C04B18/12C04B18/0409C04B14/106C04B28/14A01G24/10A01G24/15A01G24/48A01G24/42C04B2201/20C04B2111/00758C04B22/04C04B7/02Y02W30/91
Inventor 高宏宇宋桢桢苏迪程芳琴范远
Owner SHANXI UNIV
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