Compounded latex retardant for preventing coal spontaneous combustion and preparation method thereof

Abstract

A compounded latex retardant for preventing coal spontaneous combustion belongs to the technical field of retardants, and comprises the following components by weight ratio: 20 to 80 polymer emulsion, 10 to 90 organic modified clay, and 0.5 to 60 retardant, as well as 1 to 50 dispersant in a concentration of 0.1 to 10wt%. The preparation method comprises the following steps: adding the clay into silane coupling agent solution; performing ultrasonic or stirring dispersion by 30mins; dissolving the dispersant into water of a certain weight ratio, and stirring under 20 to 90 DEG C to get a dispersant solution in a concentration of 0.1 to 10wt%; and adding the organic modified clay and the prepared dispersant solution into the polymer emulsion, fully stirring, adding the retardant, and stirring to achieve uniform concentration. The retardant provided by the invention can not corrode metal equipment during use, harmful gas the wastes can not be generated, no pollution is caused to coal mine environment, and adverse effects and side effects to human body are prevented. Therefore, the retardant is environmental-friendly.

Description

technical field [0001] The invention relates to a compound inhibitor for preventing spontaneous combustion of coal and a preparation method thereof, in particular to a clay / polymer composite latex type inhibitor for preventing spontaneous combustion of coal and a preparation method thereof, belonging to the technical field of inhibitors. Background technique [0002] The fire caused by coal spontaneous combustion not only seriously endangers the safe production of coal mines, but also causes the largest loss of coal resources, and releases a large amount of toxic and harmful gases, threatening people's lives and health. Compared with other major coal-producing countries in the world, my country has a large number of low-grade coal types, and a wide range and large number of spontaneous combustion mines. It is one of the countries with the highest coal spontaneous combustion rate in the world. Therefore, it is of great significance to take effective measures to prevent coal s...

AI Technical Summary

Problems solved by technology

Although this inhibitor has good thermal stability and is not easy to be lost, it needs to use organic solvents such as aromatic hydrocarbons and aliphatic hydrocarbons, which has high cost and is not environmentally friendly when used; patent 201010103396. Vinyl acetate emulsion, polyvinyl acetal emulsion, high molecular weight polymer of high-strength starch glue, surfactants, inorganic inhibitors, flame retardants, etc., the inhibitors formed have good inhibitory effect and can be used in humid environment The medium performance is stable, but the polyvinyl acetal polymer used will decompose and release formaldehyde when heated, which will cause harm to human health when used in large quantities