中国西南地区动力用煤资源分级评价指标及资源量构成

摘要

Many coal-forming ages (C1, P3, T3, N etc) in Southwest China produced coals with commercial value, ranking from lignite to anthracite. Based on analyses of coal-bearing strata and coal quality features, have worked out power coal resource evaluation method. According to calorific value, ash content, sulfur content standards, have made a power coal resource evaluation suggestion for South-west China, five categories divided, thus carried out power coal grade evaluation. Power coal resources in Southwest China possess of available reserve 102.54142 billion tons, in which, Grade II 37.681 69 billion tons, account for 36.7%of the total, mainly distributed in the Qianbei coalfield, Bijie-Zhijin coal hosting zone;Grade IV 28.540 72 billion tons, account for 27.8%of the total, mainly distribut-ed in Lupanshui coalfield, Lupanshui coal-hosting zone.%中国西南地区有工业价值的成煤时代较多（C1、P3、T3、N等），煤类从褐煤到无烟煤均有分布。在分析该地区含煤地层及煤质特征的基础上，确定了动力用煤资源评价方法，依据煤炭质量分级发热量、灰分、硫分标准，提出了西南地区动力用煤资源评价建议，划分出五个等级，据此对西南地区煤炭资源进行了动力用煤等级评价。西南地区动力用煤煤炭资源保有储量为10254142万t，其中二级动力用煤保有资源储量3768169万t，占全区动力用煤总保有储量的36.7%，主要分布在毕节-织金赋煤带的黔北煤田；四级动力用煤保有资源储量2854072万t，占全区动力用煤总保有储量的27.8%，主要分布在六盘水赋煤带的六盘水煤田。