煤系高岭岩物化性质及可选性研究  

Study on physicochemical property and selectivity of coal-series kaolinite

作　　者：徐虎彪 Xu Hubiao(Tianjin Branch of Beijing Huayu Engineering Co.,Ltd.,China Coal Technology&Engineering Group,Tianjin 300131,China)

机构地区：[1]中国煤炭科工集团北京华宇工程有限公司天津分公司,天津300131

出　　处：《煤化工》2024年第2期147-150,共4页Coal Chemical Industry

摘　　要：从煤矸石中回收煤系高岭岩产品,可减少资源浪费,减轻环保压力。对准格尔旗地区含高岭岩成分煤矸石进行取样分析,获得了煤系高岭岩的基本特性;通过筛分实验评价,分析了煤系高岭岩的粒度特性;通过XRF分析、浮沉实验得出:分选密度应设定在2.10 g/cm^(3),对应的分选密度±0.1质量分数为25.68%,可选性为较难选物料;通过煤系高岭岩中有价成分SiO_(2)、Al_(2)O_(3)分布特性研究,得出:密度2.1 g/cm^(3)~2.4 g/cm^(3)范围内样品高岭岩成分较单一且结构紧凑,按照能谱图特征,品相接近高岭岩。The recovery of coal-series kaolinite products from coal gangue can reduce resource waste and alleviate the pressure on environmental protection.Sampling analysis was carried out on the coal gangue containing kaolinite components in the Jungar Banner area,and the basic characteristics of the coal-series kaolinite were obtained.Through the screening test evaluation,the particle size characteristics of the coal-series kaolinite were analyzed.Through the XRF analysis and floatand-sink experiments,it was concluded that the separation density should be set at 2.10 g/cm^(3),and the content of the corresponding separation density±0.1 was 25.68%,and for selectivity,it was a difficult-to-select material.Through the study of the distribution characteristics of valuable components SiO_(2) and Al_(2)O_(3) in the coal-series kaolinite,it was concluded that the kaolinite component in the samples in the density range of 2.1 g/cm^(3)to 2.4 g/cm^(3)was relatively simple and the structure was compact.According to the characteristics of the energy spectrum diagram,the appearance was close to kaolinite.

关 键 词：煤系高岭岩 煤矸石 基本特性 粒度特性 可选性 

分 类 号：P618.11[天文地球—矿床学]