Coal dust suppressant

A dust suppressant, coal technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of low film strength, high viscosity of dust suppressant, affecting use efficiency, etc., and achieve good moisturizing performance

Active Publication Date: 2015-11-04
北京奥洁鼎森新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: the binding force between coal dust and molecules is weak, and during transportation, the water evaporates quickly after being exposed to wind and sun, which weakens the dust suppression effect; the viscosity of the dust suppression agent is too high, and the spraying speed is slow and easy The spraying device is blocked, t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0010] Weigh each raw material respectively, dissolve and mix carboxymethyl starch, chitosan, lauryl amidopropyl betaine and 1 / 2 preparation water (1 / 2 of the total water), and then add moistening solution to the above mixed solution in turn. The wet component, the coagulation component and the film-forming component are dissolved and mixed to obtain a mixed solution A, and the auxiliary component and the other 1 / 2 of the preparation water are dissolved and mixed to obtain a mixed solution B, and the mixed solution A and B are mixed. The dust suppressant can be obtained, and the specific composition of the dust suppressant is:

[0011] The film-forming component of 5 parts by weight, the wetting component of 2.5 parts by weight, the coagulation component of 1 part by weight, the carboxymethyl starch of 0.8 parts by weight, the chitosan of 0.15 parts by weight, the lauramide of 0.25 parts by weight Propyl betaine, 0.3 parts by weight of auxiliary components and water for prepar...

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PUM

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Abstract

The invention relates to a coal dust suppressant which comprises a film-forming component, a wetting component, a coagulating component, carboxymethyl starch, chitosan, lauroamide propyl betaine, an auxiliary component and water for preparation, totally 100 parts by weight; the film-forming component is obtained by mixing lactic acid ring opening epoxy resin modified waterborne polyurethane and guar gum in a weight ratio of 0.15: 1; the wetting component is prepared by mixing TMDD, sodium dodecyl benzene sulfonate and a wetting agent ST-83 in a weight ratio of 0.02: 1: 0.06; the coagulating component is prepared by mixing anionic polyacrylamide, polyaluminum chloride and hydroxypropyl methyl cellulose in a weight ratio of 0.1: 0.4: 1; and the auxiliary component is prepared by mixing sodium silicoaluminate and sodium carbonate in a weight ratio of 1: 2.5. The sprayed dust suppressant can quickly form a high-strength film on the surface of the coal, is good in moisturizing property and can be fully degraded.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a coal dust suppressant. Background technique [0002] Coal is an important energy resource in our country, and the mined coal is transported to all parts of the country for production and living. During the transportation of coal, it is easy to be blown up by the wind. The dust not only pollutes the air and endangers human health, but also causes the loss of coal and causes economic losses to enterprises. At present, in view of the above problems, it is mainly solved by spraying dust suppressant on the surface of coal before transportation. The dust suppressant forms a shell on the surface of coal to avoid dust. Dust suppressants on the market are of a great variety and have different components, all of which have the following different defects. For example: the binding force between coal dust and molecules is weak, and during transportation, the water evaporates quick...

Claims

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Application Information

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IPC IPC(8): C09K3/22
Inventor 程叶红朱仁发
Owner 北京奥洁鼎森新能源科技有限公司
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