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Preparation method of dust inhibitor

A technology of inhibitor and dust suppressant, which is applied in the field of environmental protection, can solve the problems of environmental pollution, impact of flying dust particles, and personnel cannot operate normally, and achieve the effect of simple preparation method and solving the impact of the environment

Inactive Publication Date: 2013-11-27
三门峡中兴煤炭综合利用研究开发中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional method not only consumes a large amount of water resources, but also produces flying dust particles that will cause great pollution to the environment and have a serious impact, resulting in the inability of personnel to operate normally.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Dust inhibitor, its weight part is composed as follows:

[0030] 5 parts of colloid, 2 parts of flocculant, 14 parts of sodium carboxymethyl cellulose, 1 part of thiourea, 45 parts of starch, 1 part of sodium chloride, and 32 parts of sodium hydroxide.

[0031] The colloid is a mixture of guar gum, xanthan gum and the like.

[0032] When preparing, first treat the flocculant to pass 80 mesh, and then fully mix with other components except sodium hydroxide to obtain dry powder of dust suppressant; dissolve the above dry powder of dust suppressant in water and let it stand for 30 minutes, no dry powder can be seen Start stirring to obtain a solution with a mass concentration of 0.2%, and finally add the aqueous solution of sodium hydroxide to the solution of the dry powder of the dust suppressant, and mix for 10 minutes to obtain the dust suppressant.

[0033] When in use, add 15% liquid dust suppression agent to the semi-coke material at the slag outlet of the slag disc...

Embodiment 2

[0035] Dust inhibitor, its weight part is composed as follows:

[0036] 3 parts of colloid, 1 part of flocculant, 10 parts of sodium carboxymethyl cellulose, 0.5 parts of thiourea, 40 parts of starch, 0.5 parts of sodium chloride, and 28 parts of sodium hydroxide.

[0037] The colloid is guar gum.

[0038] When preparing, first treat the flocculant to pass 80 mesh, and then fully mix with other components except sodium hydroxide to obtain dry powder of dust suppressant; dissolve the above dry powder of dust suppressant in water and let it stand for 20 minutes, no dry powder can be seen Start stirring to obtain a solution with a mass concentration of 0.1%, and finally add the aqueous solution of sodium hydroxide to the solution of the dry powder of the dust suppressant, and mix for 5 minutes to obtain the dust suppressant.

[0039] Using method is the same as embodiment 1.

Embodiment 3

[0041] Dust inhibitor, its weight part is composed as follows:

[0042] 7 parts of colloid, 3 parts of flocculant, 18 parts of sodium carboxymethyl cellulose, 1.5 parts of thiourea, 50 parts of starch, 1.5 parts of sodium chloride, and 36 parts of sodium hydroxide.

[0043] The colloid is guar gum.

[0044] When preparing, first treat the flocculant to pass 80 mesh, and then fully mix with other components except sodium hydroxide to obtain dry powder of dust suppressant; dissolve the above dry powder of dust suppressant in water and let it stand for 30 minutes, no dry powder can be seen Start stirring to obtain a solution with a mass concentration of 0.3%, and finally add the aqueous solution of sodium hydroxide to the solution of the dry powder of the dust suppressant, and mix for 10 minutes to obtain the dust suppressant. Using method is the same as embodiment 1.

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PUM

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Abstract

The invention belongs to the technical field of environmental friendliness and in particular relates to a preparation method of a dust inhibitor. The preparation method comprises the following steps: treating a flocculant until the flocculant can be sieved by a 80-mesh sieve, and completely mixing the sieved flocculant with other components except sodium hydroxide to obtain dust inhibitor dry powder; dissolving the dust inhibitor dry powder into water and completely stirring to obtain a solution of the dust inhibitor dry powder; and adding an aqueous solution of the sodium hydroxide into the solution of the dust inhibitor dry powder and mixing to obtain the dust inhibitor. The dust inhibitor has a good inhibition effect on dust in a smicoke conveying process after lignite is upgraded and solves the problem of the influence of the dust on the environment, and the preparation method is simple.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a preparation method of a dust inhibitor. Background technique [0002] Lignite is a low-grade coal whose quality varies with the conditions of the mine. It is easy to ignite, burns thoroughly, has low sulfur, high moisture content, high volatile components (>40%), and contains free humic acid. It is easy to be weathered and fragmented in the air, easy to raise dust during loading, unloading and transportation, has a low ignition point (about 270°), and is prone to spontaneous combustion after storage for more than two months. The stacking height should not exceed two meters. The above properties determine that lignite is not suitable for transportation. However, lignite is mainly distributed in eastern Inner Mongolia, eastern Yunnan, northeast, Xinjiang and southern China in China, so the market for lignite is relatively limited. [0003] When us...

Claims

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Application Information

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IPC IPC(8): C09K3/22
Inventor 韩维国梁海滨王文辉
Owner 三门峡中兴煤炭综合利用研究开发中心
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