According to the analysis of the nature of middlings of the Bailong coal plant, the production rate of middlings about washed coal take for 16. 55% of raw coal, ash content of + 13mm middlings is low. Clean coal can be dissociated by middlings crusher, and coal comprehensive utilization can be improved, and designed re-election programs for the preliminary, and analyzed the economic efficiency of the coal re-election, and firmed the whole production index is more stable.%根据白龙洗煤厂中煤性质分析,中煤产率占入洗原煤的16.55％,试验研究发现+13mm粒级中煤灰分低,通过对中煤破碎可以解离出部分精煤,提高煤炭综合利用率,并对中煤再选方案进行初步设计,分析中煤再选的经济效益,并使整体生产指标更为稳定.
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