Preparation method of environment-friendly coal mine dust reducing agent

Abstract

The invention relates to a preparation method of an environment-friendly coal mine dust reducing agent and aims at solving the problem that existing dust reducing agents are low in wettability, high in evaporation speed and prone to enabling dust to raise again to cause secondary pollution leading to poor dust reducing effect. The preparation method includes: using egg yolk as a matrix, decomposing protein in the egg yolk through enzymolysis, and using alcohol to extract natural surfactant and amino acid in the egg yolk; mixing the egg yolk with starch, modifying the starch under action of microwaves, mixing with carboxymethyl cellulose, and performing graft modification under action of thiourea and formaldehyde to improve coacervation effect; extracting vegetable tannin and polyphenol substances in folium rubi suavissimi to lower tension of water and improve permeability of the water and jointing force; mixing to obtain the environment-friendly coal mine dust reducing agent capable of improving agglomeration ability of dust and tension of the water to improve wettability and dust reducing rate and easy to decompose.

Description

technical field [0001] The invention relates to a preparation method of an environment-friendly coal mine dedusting agent, belonging to the technical field of dedusting agents. Background technique [0002] In the coal production process, many processes will produce a lot of dust, such as tunneling, fully mechanized coal cutting, caving, and coal transportation. The hazards of dust are very serious. First of all, it will cause miners who are exposed to dust to suffer from pneumoconiosis. There is no cure for this disease so far, and many front-line workers will suffer from lifelong illness. Secondly, when the concentration of coal dust is too high, certain types of coal may explode, causing coal dust explosion accidents. When underground gas explosions cause deposited coal dust explosions, gas and coal dust explosions will occur. In order to reduce the dust concentration in the workplace, various enterprises have adopted a variety of methods, mainly including: spray dust re...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problem that the current dust suppressant has poor wettability, evaporates quickly, and easily causes the dust to be raised again to form secondary pollution, resulting in poor dust fall effect. Decompose the protein in it by enzymatic hydrolysis, extract the natural surfactant and amino acid in it by ethanol, then mix it with starch, modify the starch under the action of microwave, mix it with hydroxymethyl cellulose, act on thiourea and formaldehyde, then branch modification to increase coagulation, and then by extracting plant tannins and polyphenols in sweet tea, improving water tension, increasing water permeability and bonding force with dust, and finally mixing to prepare a powder that increases the agglomeration ability of dust itself , improve water tension to increase wettability, improve dust reduction rate and easy to decompose environment-friendly coal mine dust suppression agent