青海省绿草沟煤矿石门沟组G煤组煤岩煤质特征研究

Research on Coal Quality Characteristics of G Coal Group of Shimengou Formation in Lücaogou Coal Mine in Qinghai Province

通过对采集的绿草沟煤矿石门沟组G煤组煤样进行系统的分析测试,全面总结了G煤组的煤质特征及变化规律。研究结果显示,G煤组共含煤4层(G3、G2上、G2下和G1煤层)。G3煤层为低灰、高挥发分、低硫分的中高发热量长焰煤;G2上煤层为低灰、高挥发分、中硫分的中高发热量长焰煤;G2下煤层为低灰、高挥发分、低硫分的中高发热量长焰煤、不粘煤;G1煤层为低灰、高挥发分、低硫分的中高发热量长焰煤、不粘煤。

Through the systematic analysis and test of the coal samples collected from the G coal group of Shimengou Formation,and combined with the physical properties,coal lithotypes and metamorphic degree characteristics of the G coal group,the coal quality characteristics and variation laws of the G coal group of Lücaogou Coal Mine were comprehensively summarized.The results show that the G coal group of Lücaogou Coal Mine contains four coal layers(G3 coal seam,G2 upper coal seam,G2 lower coal seam and G1 coal seam).The G3 coal seam is low ash,high volatile,low sulfur,high calorific value long flame coal.The G2 upper coal seam is medium-high calorific value long flame coal with low ash,high volatileand medium sulfur;The G2 lower coal seam is low ash,high volatile,low sulfur and high calorific value long flame coal,non-stick coal.The G1 coal seam is low ash,high volatile,low sulfur,high calorific value,long flame coal,non-stick coal.