胡家河井田原煤含硫特征及主控因素分析

发布时间：2018-05-05 23:29

本文选题：原煤 + 含硫特征　；参考：《西安科技大学学报》2017年03期

【摘要】：为研究胡家河井田原煤含硫特征及主控因素,为脱硫、降硫提供科学理论依据,采用了趋势面分析和相关分析相结合的方法,对黄陇侏罗纪煤田彬长矿区胡家河井田3#,4#煤层原煤的含硫特征及主控因素进行分析研究。结果表明,胡家河井田3#煤层属中硫~高硫分煤,以中高硫分煤为主,4#煤层属特低硫~中高硫,以低硫分煤为主;原煤的硫分以硫化铁硫为主,次为有机硫,硫酸盐硫含量最少;井田中部,硫分含量较高,井田西南部和东北部,硫分含量较低,说明原煤硫分从井田西南和东北向中间递增;原煤硫分的成因和分布与成煤原始植物、水文条件、沉积环境、地质构造都有一定关系,原煤全硫含量与灰分成负相关,淡水沼泽中硫的聚集与植物类型、水动力条件及覆水深度关系更为密切,说明硫分的形成和成煤环境中的外来碎屑关系不大,与煤形成时的泥炭沼泽的环境和成煤物质密切相关,因此胡家河井田原煤含硫的主控因素为成煤原始植物和沉积环境。
[Abstract]:In order to study the characteristics and main controlling factors of sulfur content in raw coal of Hujiahe mine field, and to provide scientific theoretical basis for desulfurization and sulfur reduction, the method of combining trend surface analysis with correlation analysis is adopted. The sulfur content characteristics and main controlling factors of raw coal in Hujiahe mine field of Hujiahe coal mine in Jurassic coal field of Huanglong are analyzed and studied. The results show that coal seam in Hujiahe mine field belongs to medium sulfur ~ high sulfur coal, medium high sulfur coal is the main coal seam with low sulfur ~ high sulfur, low sulfur content is mainly coal, sulfur content of raw coal is mainly iron sulphide sulfur, the second is organic sulfur. Sulphate sulfur content is the least, sulfur content is higher in the middle of the mine field, and sulfur content is lower in the southwest and northeast of the mine field, indicating that the sulfur content of raw coal increases from the southwest and northeast of the mine to the middle, and the origin and distribution of the sulfur content of raw coal and the original coal-forming plants, Hydrological condition, sedimentary environment and geological structure are all related to each other. The total sulfur content of raw coal is negatively correlated with ash division, and the accumulation of sulfur in freshwater swamp is more closely related to plant type, hydrodynamic condition and depth of overlying water. It shows that the formation of sulfur is not related to the external detritus in coal-forming environment, but is closely related to the environment of peat swamp and coal-forming material, so the main controlling factors of sulfur content in raw coal in Hujiahe mine field are coal-forming primordial plants and sedimentary environment.
【作者单位】：西安科技大学地质与环境学院;
【基金】：博士后基金面上项目(2016M592907) 国家自然科学基金项目(41502160)
【分类号】：P618.11

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