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以乌达矿区为例,用精煤的产率和煤样密度组成的煤岩学方法对煤的可选性进行了评价。它的特点是实验煤样用量少,采点样多,其研究结果可以充分显示煤层三维空间上的可选性变化规律,深入了解煤中矿物质种类、分布特性等与可选性的关系,而且可以从根本上揭露影响煤炭可选性的内在因素,为选煤方法提供真实可靠的理论依据。
Taking Wuda Mining Area as an example, the coal selectivity was evaluated by the coal-rock method, which consisted of the yield of coal and the density of coal samples. It is characterized by a small amount of experimental coal sample, mining more samples, the results of the study can fully demonstrate the three-dimensional changes in the coal seam on the rules of the three-dimensional space, in-depth understanding of mineral types, distribution characteristics of coal and optional relationship , But also can reveal fundamentally the inherent factors that affect the coal selectivity and provide a true and reliable theoretical basis for the coal preparation method.