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本文以某一钻孔采样深度为483.2m-1225.4m的25件白杨河煤为研究对象,该煤有以下基本特征:R0max从0.448%增加至0.561%,属于0-Ⅰ阶的低阶煤;水分从5.0%降低至3.42%;干基灰分从21.78%降低至19.98%,属于低-中灰分煤;干燥无灰基挥发份从44.21%降低至41.59%,属于高挥发份煤;干燥无灰干燥基碳从71.24%增加至76.86%;干基高位发热量从28.27%增加至31.65%,属于中-中高发热量煤;干基硫从0.39%减少至0.23%,属于特低-低硫煤,煤类为长焰煤(41CY)。数据表明沿着煤样埋藏深度的增加,煤化程度有所增加,符合希尔特定律。
In this paper, 25 samples of Baihe coal whose sampling depth is 483.2m-1225.4m are studied. The coal has the following basic characteristics: R0max increases from 0.448% to 0.561% Moisture content decreased from 5.0% to 3.42%; dry ash decreased from 21.78% to 19.98%, which belonged to low-middle-ash coal; dry ash-free base volatile decreased from 44.21% to 41.59%, which was high volatile coal; The dry basis carbon increased from 71.24% to 76.86%; the dry basis high calorific value increased from 28.27% to 31.65%, which was moderate to medium and high calorific value; dry basis sulfur decreased from 0.39% to 0.23% , Long-flame coal coal (41CY). The data show that along with the increase of burial depth of coal samples, the degree of coalification has increased, which is in line with Helt’s law.