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矿工在源源不断地挖出煤炭的同时,也挖出了成千上万吨夹炭带煤的矸石。被视为废物的矸石,或被填于壕沟,或被堆成高山。 这就相安无事了吗?非也！矸石山占用大量良田,矗立于矿区边际,粉尘随风飞舞,随雨流淌,肆意破坏了环境。更可怕的是,它堆积日久,不断氧化,内温升到305～400℃时开始自燃,成了大片人造火焰山,大量二氧化硫、一氧化碳等有害气体向矿区弥漫。更有甚者,自燃中的矸
Miners in an endless stream of coal dredged at the same time, also dug up tens of thousands of tons of carbon with coal gangue. Wastes that are considered waste are either filled in trenches or piled high up. Is this peaceful? Gangue Hill occupy a large number of fertile fields, stands in the margins of the mine, dust flying in the wind, drifting with the rain, wanton destruction of the environment. Even more frightening is that it accumulates for a long time and continuously oxidizes. When the internal temperature rises to 305-400 ° C, it spontaneously ignites and becomes a large area of man-made flames. A large amount of harmful gases such as sulfur dioxide and carbon monoxide are filled into the mining area. What is more, spontaneous combustion in the rock