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High-sulfur coal gangue efficient utilization machining process

A technology of high-sulfur coal gangue and processing technology, which is applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of low utilization rate of high-sulfur coal gangue and small value-added space, and reduce the cost of product sorting , The processing technology is simple, and the effect of improving the value-added utilization rate

Inactive Publication Date: 2017-07-14
绵阳耀邦环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the utilization rate of existing high-sulfur coal gangue is low, and the value-added space is small. Kaolinite tailings, at the same time, the processing technology is simple, which reduces the cost of product sorting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention provides a process for efficient utilization of high-sulfur coal gangue, comprising the following steps:

[0023] Step 1, ore grinding: first crush the high-sulfur coal gangue with a pulverizer, and grind it with a ball mill to obtain coal gangue particles, and the particle size of the coal gangue particles is 140 mesh;

[0024] Step 2, mixing slurry: adding water to the gangue particles and preparing slurry in the adjustment tank, the mass concentration of the slurry is 18%, and stirring the slurry for 12 minutes;

[0025] Step 3, cyclone separation: the ore slurry is separated by a hydrocyclone, the cone angle of the hydrocyclone is 16°, the cone ratio is 0.50, the cyclone separation pressure is 0.16MPa, and the cyclone separation time 3 to 5 minutes;

[0026] Step 4, pulp preparation: the upper layer of wood obtained by separating the cyclone separator can be further sorted to obtain coal slime, and the lower layer of material is prepared in the adjust...

Embodiment 2

[0029] The invention provides a process for efficient utilization of high-sulfur coal gangue, comprising the following steps:

[0030] Step 1, ore grinding: first crush the high-sulfur coal gangue with a pulverizer, and grind it with a ball mill to obtain coal gangue particles, and the particle size of the coal gangue particles is 200 mesh;

[0031] Step 2, mixing slurry: adding water to the gangue particles and preparing slurry in the adjustment tank, the mass concentration of the slurry is 18%, and stirring the slurry for 12 minutes;

[0032] Step 3, cyclone separation: the ore slurry is separated by a hydrocyclone, the cone angle of the hydrocyclone is 16°, the cone ratio is 0.50, the cyclone separation pressure is 0.16MPa, and the cyclone separation time 3 to 5 minutes;

[0033] Step 4, pulp preparation: the upper layer of wood obtained by separating the cyclone separator can be further sorted to obtain coal slime, and the lower layer of material is prepared in the adjust...

Embodiment 3

[0036] The invention provides a process for efficient utilization of high-sulfur coal gangue, comprising the following steps:

[0037] Step 1, ore grinding: first crush the high-sulfur coal gangue with a pulverizer, and grind it with a ball mill to obtain coal gangue particles, the particle size of the coal gangue particles is 270 mesh;

[0038] Step 2, mixing slurry: adding water to the gangue particles and preparing slurry in the adjustment tank, the mass concentration of the slurry is 18%, and stirring the slurry for 12 minutes;

[0039] Step 3, cyclone separation: the ore slurry is separated by a hydrocyclone, the cone angle of the hydrocyclone is 16°, the cone ratio is 0.50, the cyclone separation pressure is 0.16MPa, and the cyclone separation time 3 to 5 minutes;

[0040] Step 4, pulp preparation: the upper layer of wood obtained by separating the cyclone separator can be further sorted to obtain coal slime, and the lower layer of material is prepared in the adjustment...

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PUM

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Abstract

The invention discloses a high-sulfur coal gangue efficient utilization machining process. The process comprises the following steps: (1) ore grinding: firstly, high-sulfur coal gangues are crushed and grinded to prepare coal gangue particles; (2) pulp preparation: water is added in the coal gangue particles to prepare pulp; (3) cyclone separation: the pulp is separated by a cyclone separator; (4) pulp preparation: secondary pulp is prepared by lower-layer materials separated by the cyclone separator; and (5) flotation: the flotation is performed for the secondary pulp to obtain pyrite concentrates and kaolinite tailings. The pyrite concentrates and the kaolinite tailings with high utilization values are separated out from the high-sulfur coal gangues; and meanwhile, the machining treatment process is simple, and the product sorting cost is reduced.

Description

technical field [0001] The invention relates to a coal gangue utilization method, in particular to a high-sulfur coal gangue efficient utilization processing technology. Background technique [0002] With the rapid development of the national economy, my country's coal production is also increasing year by year. It is estimated that the amount of coal in 2011 will exceed 3.2 billion tons, of which coal gangue accounts for about 15% of the output, which is accompanied by the problem of gangue accumulation and its associated environmental pollution. Such as: occupation of cultivated land, air pollution by toxic and harmful gases produced by spontaneous combustion, wind erosion dust and leaching water pollution, etc. Therefore, rational utilization of coal gangue can not only protect the environment but also utilize its rich valuable energy and resources. Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B9/00B03D1/00B03B5/34
CPCB03B9/005B03B5/34B03D1/00
Inventor 谢秩勇
Owner 绵阳耀邦环保科技有限公司
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