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(一)概述为了节能、省土、综合利用低热值燃料资源、扩大水泥工业原料来源,近年来广泛展开了利用石煤、煤矸石作水泥原燃料的研究和应用。对于优质煤很少的南方各省,就地应用石煤等低热值煤,可以增产水泥、减少好煤用量和运煤能耗,降低立窑水泥的生产成本。但是石煤不仅是燃料,又是粘土质原料,它的成分
(I) Overview In order to save energy, land and resources, comprehensive utilization of low calorific value fuel resources, and expand the sources of raw materials for the cement industry, research and application of using stone coal and coal gangue as cement raw materials have been widely carried out in recent years. For the southern provinces where there are few high-quality coal, the use of coal with low calorific value such as coal can increase the production of cement, reduce the consumption of good coal, and reduce the energy consumption of coal transportation, thus reducing the production cost of shaft kiln cement. However, stone coal is not only a fuel but also a clay material. Its composition