新疆准东煤田库兰喀孜干勘查区煤质特征分析

Analysis on Coal Quality Characteristic of Kulankazgan Exploration Area in Zhundong Coalfield in Xinjiang Uygur Autonomous Region

库兰喀孜干勘查区位于准东煤田东部,含煤地层为中侏罗世西山窑组和早侏罗世八道湾组,含煤层共计23层,其中可采煤层12层。根据煤质特征分析可知,煤层宏观煤岩组分以丝炭、暗煤为主,亮煤次之,煤岩类型为半暗型煤—暗淡型煤,显微煤岩类型以微镜惰煤为主,见少量微泥质煤和微惰煤,变质阶段以Ⅱ阶为主。该区总体以中水分、特低—低灰、中高挥发分、高固定碳、特低硫、低磷分、特低氟、特低—低氯、一级含砷、中高—高热值、不黏结、中等可磨—易磨、中热—较高热—高热稳定、含油、较低—较高软化温度的煤层为主,为优质的动力用煤,具有广泛的开发利用前景。

Kulankazgan exploration area is located in the east of Zhundong coalfield.The coal-bearing strata are middle Jurassic Xishanyao formation and early Jurassic Badaowan formation.There are 23 coal strata,and 12 strata are mineable coal strata.According to coal quality characteristics,it is determined that macro coal rock compositions are fusain and durain,and brightcoal takes the second place.Coal rock type is semi dark coal—dull coal.Micro coal rock type is mainly vitrinertite,with a small quantity of micro slime coal and inertite.Metamorphic stage is mainlyⅡorder.The main coal strata in this area are premium power coal with medium moisture,extra low to low ash,medium to high volatile matter,high fixed carbon,extra low sulfur,low phosphorus,extra low fluorine,extra low to low chlorine,first category arsenic contained coal,medium high to high calorific value,non-caking,medium grinding to easy grinding,medium to superior to high grade thermal stability,oiliness,lower to higher softening temperature ash.It has broad prospects for development and utilization.