摘要
对五种不同煤阶的煤样在25℃的条件下以苯和四氯化碳的混合液为重液进行重介离心浮沉分选,每个煤样从1.320g/cm3到1.459g/cm3分为五个密度级。根据浮沉试验结果绘制了可选性曲线,分析得出了煤的可选难易程度与煤阶无关,而与煤本身的性质有关。
coals with different ranks were separated respectively into five density grades ranging from 1.320g/cm3 to 1.459g/cm3 in heavy media (C6H6-CCl4) at 25°C using centrifugal float-sink separation technique. The separation efficiency of each coal differed significantly. The washability curves were drawn according to the result of float-sink test. The conclusion is that the washability has no relation with coal rank,but depends on the coal properties.
出处
《煤化工》
CAS
2004年第6期28-30,共3页
Coal Chemical Industry
基金
山西省自然科学基金资助项目(20031021)
太原理工大学青年科学基金资助项目
关键词
煤
浮沉分选
可选性曲线
数量效率
coal,float-sink separation,washability curve,quantitative efficiency
