东胜煤田新胜勘查区可采煤层煤质特征研究

Study on Coal Quality Characteristics of Minable Coal Seams in Xinsheng Exploration

利用克里格插值法、地质统计法等方法,通过CGIS、SPSS等软件对可采煤层煤质数据进行了分析研究,结果表明:各煤层以低全水分、低灰分、中高挥发分、低固定碳、低硫、中氟煤、高热值为主;全水分东北高西南低;灰分上部煤层高于下部煤层,在平面上中部低,东西两侧高;挥发分上部煤层高于下部煤层;固定碳上部煤层低于下部煤层,在平面上西南高东北低;硫分上部煤层高于下部煤层,平面上东北高西南低;氟含量上部煤层低于下部煤层,在平面上西南区域高于其他区域;低位发热量上部煤层低于下部煤层,西南部区域低于其他区域;原煤灰分与固定碳和低位发热量为极强负相关,固定碳与低位发热量为极强正相关,挥发分与固定碳为强负相关。

By using Kriging interpolation method,geological statistics method and other methods,through CGIS,SPSS and other software,the coal quality data of minable coal seams are analyzed and studied.The results show that:the coal seams are dominated by low total moisture,low ash,medium high volatile matter,low fixed carbon,low sulfur,medium fluorine coal and high calorific value;The total water content is high in the northeast and low in the southwest;The ash content of the upper coal seam is higher than that of the lower coal seam,which is lower in the middle of the plane and higher in the east and west sides;The volatile matter in the upper coal seam is higher than that in the lower coal seam;The upper coal seam of fixed carbon is lower than the lower coal seam,and the southwest is higher than the northeast on the plane;The sulfur content in the upper coal seam is higher than that in the lower coal seam,and the sulfur content in the northeast is higher than that in the southwest;The fluorine content of the upper coal seam is lower than that of the lower coal seam,and the southwest area is higher than other areas on the plane;The lower calorific value of the upper coal seam is lower than that of the lower coal seam,and that of the southwest region is lower than that of other regions;The ash content of raw coal has a strong negative correlation with fixed carbon and low calorific value.The fixed carbon has a strong positive correlation with low calorific value,and the volatile matter has a strong negative correlation with fixed carbon.