伊宁煤中金属元素的分析研究

Comparative Study on Analysis of Metal Elements in Yining Coal

煤中的金属元素对其工业应用及环境有着重大影响,研究其含量分布规律、赋存状态,对于正确评价煤中金属元素对煤工业应用的正负效应,预防煤中有害微量金属元素对环境产生的不良影响、保护生态环境具有重要的理论指导意义和现实意义。在充分查阅国内外文献及相关研究的基础上,用工业分析、元素分析、等离子低温灰化分析、X射线荧光光谱分析和X射线衍射分析等方法,对新疆伊宁克孜勒努尔组煤样品及其不同温度下的煤灰进行分析,得到基础分析数据及金属元素含量和赋存状态变化的数据。运用煤化学和煤燃烧学等知识,探讨了煤样品中金属元素含量和赋存状态变化的特征,为这煤样品的工业应用及环境影响提供理论依据,也为工业应用中可能出现的问题提出针对性的建议。

The metallic elements in coal have a significant impact on the industrial application of coal and environment.The study of the concentration distribution of metallic elements and occurrence state have important theoretical guidance and practical significance not only on its evaluation of industrial application,but also the protection of ecological environment from harmful trace metal elements.In this thesis,the content changes of metallic elements and occurrence state of coal sample(Yining coal)and coal ash under different temperatures were detected by industrial analyzer,elemental analyzer,plasma low-temperature ashing method,X-ray fluorescence spectrometer and X-ray diffractometer.The characteristics of the changes of metallic elements content and occurrence state were studied by coal chemistry and coal combustion science,which proved the theoretical basis of coal industry application and suggestions to possible problems in application.