不同成因类型煤的可选性评价  

Evaluation on coal washability of different genetic coal seams

作　　者：代世峰[1] 艾天杰[1] 焦方立[1] 侯慧敏[1] 毛鹤龄[1] 马凤学 李宝春 辛泽时 

机构地区：[1]中国矿业大学,北京100083 [2]内蒙古乌达矿务局,内蒙乌海016040

出　　处：《煤田地质与勘探》2001年第1期11-13,共3页Coal Geology & Exploration

基　　金：煤炭科学基金资助项目! (编号 97地 10 2 0 5 )

摘　　要：煤的可选性受控于煤的聚积环境。通过对内蒙古乌达矿区主采煤层 9、10、12、13和 15煤中黄铁矿和粘土矿物的赋存特征与煤层成因关系的研究 ,发现河控下三角洲平原形成的煤层中黄铁矿含量低 ,粘土矿物含量高 ,其可选性较好 ;潮控下三角洲平原形成的煤层 ,其硫分含量高 ,粘土矿物含量较低 ,其可选性中等 。The coal washability is controlled by coal accumulating area.The research on relationship between characteristics of pyrite and clay mineral distribution and the coal genesis types of main minable coal seams No.9, No.10, No.12, No.13,and No.15,in the Wuda mining area,Inner Mongolia,indicated that the coal seams formed in a fluvial dominated delta plain are characterized by low pyrite content,high clay mineral content and better washability,but the coal seams formed in tide dominated delta plain are characterized by high sulfur,low clay mineral content and the mid degree of washability.In addition,the washability of pyrite and clay mineral of the coal seam formed in tidal flat is the worst.

关 键 词：成因 类型 可选性 聚煤环境 型煤 粘土矿物 煤层 黄铁矿 

分 类 号：TD941.3[矿业工程—选矿]