Moreover, a certain ratio of blending coal could improve HGI, which implied more facility of the pulverization of coals.
两种可磨性较差的煤混配起来的煤种可能变得较易磨细，选择合适的质量配比比例可以提高混煤的可磨性指数。
Some physical factors such as the macerals, the type, size and distribution of mineral matters and the microcosmic tectonics are very important for HGI.
煤的显微组分、矿物质类型、颗粒大小和分布以及煤种的显微构造等物理参数是决定煤可磨性能的重要因素。
The results(indicated) that the approximate analysis of the pulverized coal changed to different degrees, and the particle size distribution mainly depended on the coal rank but not the HGI.
试验结果表明，经过哈氏可磨性测定仪后，各煤种的工业分析都发生了不同程度的变化，而煤粉破碎后的粒度分布取决于煤种的煤化程度，而与煤种的可磨性指数相关性较小。
The grindability of coal is an important parameter in pulverized coal utilization, and the HGI(Hardgrove Grindability Index) is relevant to the coal pulverization and the particle size distribution.
可磨性是煤加工利用过程中的一个重要指标，可磨性指数与煤的破碎机理、煤粒破碎后的粒度分布均有关系。
The grindability of coal is an important parameter in pulverized coal utilization, and the HGI(Hardgrove Grindability Index) is relevant to the coal pulverization and the particle size distribution.
可磨性是煤加工利用过程中的一个重要指标，可磨性指数与煤的破碎机理、煤粒破碎后的粒度分布均有关系。
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