我国优质煤炭、石油、天然气的资源丰富,但资源分布很不均匀,而且开采、运输很不易。全国劣质煤的储量十分可观。现已积存的煤矸石达10亿吨以上,而且每年新排出煤矸石近亿吨,浙、湘、鄂三省的石煤储量达350多亿吨,发热值一般在1000～2000kcal/kg;江西省的劣质烟 China’s high-quality coal, oil, natural gas is rich in resources, but the distribution of resources is very uneven, and mining, transportation is not easy. The country’s low-quality coal reserves are considerable. Coal gangue now accumulated up to 1 billion tons, and each year nearly a hundred million tons of coal gangue discharged, Zhejiang, Hunan and Hubei provinces have reached more than 35 billion tons of stone coal reserves, calorific value is generally 1000 ~ 2000kcal / kg; Jiangxi Province Of inferior smoke