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Topsoil substitute mixture for strip mine waste dump and application thereof

A technology for soil dumps and open pit mines, applied in fertilizer mixtures, applications, planting substrates, etc., which can solve problems such as plants not growing easily

Active Publication Date: 2019-12-03
INST OF WATER RESOURCES FOR PASTERAL AREA MINIST OF WATER RESOURCES P R C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide a kind of topsoil replacement mixture suitable for plant growth for open-pit mine dumps in order to solve the technical problem that the improvement of dumps in the above-mentioned background technology is difficult for plants to grow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The topsoil replacement mixture for open-pit mine dumps in this embodiment includes loess, clay, corn stalks, sodium hydroxide, phosphoric acid and trace element auxiliary agents, wherein, the percentage of each component is calculated by weight, and the loess is 20kg , 17kg of clay, 30kg of corn stalks, 3kg of sodium hydroxide, 2kg of urea, and 28kg of trace element auxiliary agents. The sum of the loess, clay, corn stalks, sodium hydroxide, phosphoric acid and trace element auxiliary agents is 100kg.

[0034] A method of dump improvement using a topsoil replacement mixture for an open pit dump as described above, comprising the steps of:

[0035] a. The surface layer of the dump site to be improved is scratched by a disc plow to obtain a soft dump site;

[0036] b. Mix the above topsoil replacement mixture with water at a volume ratio of 1:1 to obtain a mixed solution;

[0037] C, the mixed solution of step b is poured on the dump site, and the described mixed soluti...

Embodiment 2

[0040] The topsoil replacement mixture for open-pit mine dumps in this embodiment includes loess, clay, corn stalks, sodium hydroxide, phosphoric acid and trace element auxiliary agents, wherein, the percentage of each component is calculated by weight, and the loess is 25kg , 22 kg of clay, 35 kg of corn stalks, 5 kg of sodium hydroxide, 2 kg of urea, and 11 kg of trace element auxiliary agents. The sum of the loess, clay, corn stalks, sodium hydroxide, phosphoric acid and trace element auxiliary agents is 100 kg.

[0041] A method for improving a dump using the above-mentioned topsoil replacement mixture for a dump of an open pit mine, comprising the following steps:

[0042] a. The surface layer of the dump site to be improved is scratched by a disc plow to obtain a soft dump site;

[0043] b. Mix the above topsoil replacement mixture with water at a volume ratio of 1:1 to obtain a mixed solution;

[0044] C, the mixed solution of step b is poured on the dump site, and the...

Embodiment 3

[0047]The topsoil replacement mixture for open-pit mine dumps of the present embodiment includes loess, clay, corn stalks, sodium hydroxide, phosphoric acid and trace element auxiliary agents, wherein, the percentage of each component is calculated by weight, and the loess is 22kg , 20 kg of clay, 32 kg of corn stalks, 4 kg of sodium hydroxide, 10 kg of urea, and 12 kg of trace element auxiliary agents. The sum of the loess, clay, corn stalks, sodium hydroxide, phosphoric acid and trace element auxiliary agents is 100 kg.

[0048] A method for improving a dump using the above-mentioned topsoil replacement mixture for a dump of an open pit mine, comprising the following steps:

[0049] a. The surface layer of the dump site to be improved is scratched by a disc plow to obtain a soft dump site;

[0050] b. Mix the above topsoil replacement mixture with water at a volume ratio of 1:1 to obtain a mixed solution;

[0051] C, the mixed solution of step b is poured on the dump site, ...

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PUM

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Abstract

The invention belongs to the technical field of soil improvement, and particularly relates to a topsoil substitute mixture for a strip mine waste dump and application thereof. The substitute mixture is prepared from, by weight, 20-25% of loess, 17-22% of clay, 30-35% of corn stalks, 3-5% of sodium hydroxide, 2-10% of urea and 10-30% of a trace element adjuvant. The invention further discloses a method for improving the strip mine waste dump by utilizing the topsoil substitute mixture for the strip mine waste dump. According to the topsoil substitute mixture, the physicochemical properties of resources such as non-topsoil are utilized, and the topsoil substitute mixture is comprehensively utilized to achieve the purpose that the topsoil substitute mixture is suitable for the growth of plants and achieve the improvement of the strip mine waste dump, so that the plants can grow to achieve the effect that the greening coverage degree reaches 80% or above.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and in particular relates to a topsoil replacement mixture for open-pit mine dumps and an application thereof. Background technique [0002] my country's Inner Mongolia is a semi-arid and water-deficient area, and water resources are scarce, so there are many dumps in Inner Mongolia. The situation of the dump site determines the way and method of greening. Where there is topsoil, topsoil can be used for greening. For places without topsoil, if you want to cover greening, you must improve the substrate according to the actual situation so that it can be covered with greening. [0003] Improving the matrix of the dump site is a convenient and economical method to achieve green coverage. However, the matrix of the dump site is deep mudstone and siltstone. During the process of dumping and dumping, the dump site is rolled by heavy machinery, and the surface of the platform becomes very hard...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G24/10A01G24/22A01G24/30C05G3/00C05G3/04
CPCA01B79/02A01G24/10A01G24/22A01G24/30C05G3/00C05B7/00
Inventor 田秀民郭建英王文君吴永胜邢恩德荣浩张铁钢李锦荣王丽霞
Owner INST OF WATER RESOURCES FOR PASTERAL AREA MINIST OF WATER RESOURCES P R C
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