宁东煤田马儿庄勘查区煤质特征研究

Coal quality characteristics in Maerzhuang exploration area in eastern Ningxia coalfield

从勘查区煤的物理性质、煤岩特征、化学性质和工艺性能入手,对宁夏宁东煤田积家井矿区东部马儿庄勘查区各可采煤层的煤质特征进行了综合研究,马儿庄勘查区各煤层有机显微组分以惰质组为主,体积分数为40.6%~64.4%,镜质组体积分数占29.3%~47.2%,具有中高挥发分、低灰、低硫、低磷、中碳、高发热量、无黏结、中—高热稳定性的特点,煤类为不黏煤。

Maerzhuang exploration area situated in eastern Jijiajing mine area of eastern Ningxai coalfield has large and considerable coal resources. This paper conducts synthetic study on coal quality characteristics in Maerzhuang exploration area, considering coal physical properties, coal petrological characteristics, chemical properties and technological performances.The organic maceral of each coal seam is mainly inertinite, accounting for 40.6%~64.4% and vitrinite is 29.3%~47.2% in Maerzhuang exploration area, which has the characteristics of high volatile matter, low ash, low sulfur, low phosphorus,medium carbon, high calorific value, non caking property, medium to high thermal stability. Coal rank belongs to non-caking coal.