As long as certain conditions are met, coal will react spontaneously. How to stop the spontaneous combustion of coal? The editor of Daoer believes that the site where coal is stored should meet basic standards such as protection from light, low oxygen and low temperature, and the open-air site must not be selected for storage. However, the condition of low oxygen can be achieved through many methods, such as yellow mud grouting, filling gas and spraying flame retardants. Let ’s take a look at why flame retardants can effectively prevent the spontaneous combustion of coal.

After coal is sprayed with wood flame retardants, the activity of free radical groups will be significantly reduced. The moisture in the flame retardant will evaporate with time, and will eventually form a very stable consolidation layer on the coal surface, which can effectively slow the oxygen in the air from entering the coal. This has the advantage of reducing the oxidation activity of the coal, increasing the flame retardancy of the coal, and enhancing the stability of the coal molecules. If it is just spraying flame retardants, it is not possible to do a good job of coal preservation. We also need to control the temperature and light, such as spraying water near the site to cool down, planting trees and using sunshade cloth.