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Clean utilization method of coal slime produced in coal mining process

A mining process and coal slime technology, applied in the field of clean utilization of coal slime, can solve problems such as unfavorable coal mining work, difficulty in obtaining economic benefits, and difficulty in direct utilization, etc., and achieve good biological nutrition replenishment effect, good market economy effect, The effect of solving blockage and pollution

Active Publication Date: 2020-10-16
甘宜山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during the mining process, if the coal slime is not cleaned in time, it will harden and harden quickly, causing the mining channel to be blocked, which is not conducive to coal mining.
However, because the coal slime contains ash, sulfur and moisture are relatively high, it is difficult to be directly used, even if it is used, it is difficult to obtain good economic benefits, and it has been used as waste for a long time.
When the coal slime is stacked, its shape is extremely unstable, it will be lost when it meets water, and it will fly when it is air-dried, which not only wastes precious coal resources, but also causes serious environmental pollution

Method used

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  • Clean utilization method of coal slime produced in coal mining process
  • Clean utilization method of coal slime produced in coal mining process
  • Clean utilization method of coal slime produced in coal mining process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A method for clean utilization of coal slime produced during coal mining, including:

[0051] S1. Putting the coal slime in a coal slime treatment device for pretreatment to obtain coal slime powder, putting the coal slime powder into a blast burner for combustion to obtain coal slime powder;

[0052] S2. Add 10 parts by weight of straw, 15 parts by weight of corn silk, 20 parts by weight of mixed fertilizer, 10 parts by weight of inorganic fertilizer and 60 parts by weight of water to 160 parts by weight of the coal slime powder and mix uniformly to obtain Mixture;

[0053] S3, then put the mixture into the drum, and place it at 60°C and a wind speed of 15m / s, after fermenting for 10 days, spread out and spray 50 parts by weight of wormwood water with a mass fraction of 20%, and then reset Sealed fermentation at 60°C for 3 days, then adding 15 parts by weight of Bacillus and 25 parts by weight of Saccharomyces cerevisiae, fermenting at 30°C for 5 days, drying until th...

Embodiment 2

[0056] A method for clean utilization of coal slime produced during coal mining, including:

[0057] S1. Putting the coal slime in a coal slime treatment device for pretreatment to obtain coal slime powder, putting the coal slime powder into a blast burner for combustion to obtain coal slime powder;

[0058] S2. Add 25 parts by weight of straw, 20 parts by weight of corn silk, 30 parts by weight of mixed fertilizer, 20 parts by weight of inorganic fertilizer and 80 parts by weight of water to 200 parts by weight of the coal slime powder and mix uniformly to obtain Mixture;

[0059] S3, then put the mixture into the drum, and put it under 70°C and 30m / s wind speed, after fermenting for 15 days, spread out and spray 80 parts by weight of wormwood water with a mass fraction of 30%. Sealed fermentation at 70°C for 5 days, then adding 20 parts by weight of Bacillus and 30 parts by weight of Saccharomyces cerevisiae, fermenting at 40°C for 8 days, drying until the water content is ...

Embodiment 3

[0062] A method for clean utilization of coal slime produced during coal mining, including:

[0063] S1. Putting the coal slime in a coal slime treatment device for pretreatment to obtain coal slime powder, putting the coal slime powder into a blast burner for combustion to obtain coal slime powder;

[0064] S2. Add 18 parts by weight of stalks, 18 parts by weight of corn silk, 25 parts by weight of mixed fertilizer, 15 parts by weight of inorganic fertilizer and 70 parts by weight of water to 180 parts by weight of the coal slime powder and mix them uniformly to obtain Mixture;

[0065] S3, then put the mixture into the drum, and place it at 65°C and a wind speed of 22m / s, after fermentation for 12 days, spread out and spray 75 parts by weight of wormwood water with a mass fraction of 25% and then reset Sealed fermentation at 65°C for 4 days, then adding 18 parts by weight of Bacillus and 28 parts by weight of Saccharomyces cerevisiae, fermenting at 35°C for 6 days, drying u...

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Abstract

The invention discloses a method for cleaning and utilizing coal slime produced in coal mining process. The coal slime is placed in a slime treatment device for pretreatment, and the coal slime powderis obtained after the coal slime is burned, and then the straw, the corn whisker and the mixed fertilizer, inorganic fertilizer and water are mixed uniformly to obtain a mixture, and then fermented and sterilized to obtain cultivated soil. The cultivated soil is taken from the abandoned coal slime, turned waste into treasure, and the contaminated environment of the slime is added to each component to be converted into nutrient soil, which can provide a variety of nutrients required for plant growth, and has a wide range of reality of green environmental applicability.

Description

technical field [0001] The invention relates to the field of coal mining. More specifically, the present invention relates to a clean utilization method of coal slime produced in the coal mining process. Background technique [0002] In the process of coal mining, a large amount of coal slime will be produced. Coal slime is a viscous substance composed of granular coal, pulverized bone stone and water. It has fine particle size, high particle content, high moisture and ash content, and low calorific value. , strong cohesiveness and strong cohesion. Therefore, during the mining process, if the coal slime is not cleaned in time, it will harden and harden quickly, causing the mining channel to be blocked, which is not conducive to coal mining. However, because the coal slime contains ash, sulfur and moisture are relatively high, it is difficult to be used directly, even if it is used, it is difficult to obtain good economic benefits, and it has been regarded as waste for a lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/16E21C41/26A01G24/10
CPCA01G24/10A01G24/20A01G24/22C05B7/00C05F17/00C05C5/02C05D3/00C05D5/00C05D9/00C05D9/02C05F3/00C05F5/002C05F11/00C05F11/08Y02W30/40
Inventor 甘宜山
Owner 甘宜山
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