本文關鍵詞： 石灰溝 克魯克組 煤 伴生元素 賦存特征　出處：《河北工程大學》2015年碩士論文　論文類型：學位論文

【摘要】：中國煤炭資源豐富,也是世界煤炭生產(chǎn)量和消費量最大的國家,在相當長的時期內,煤炭在我國能源消費構成中的主導地位不會發(fā)生根本變化。隨著經(jīng)濟的發(fā)展和科技的進步,對煤炭的需求日益增加,同時產(chǎn)生的環(huán)境問題也日益嚴峻。為了能夠充分利用煤炭資源的同時保護環(huán)境,近年來內外許多學者對煤中伴生元素的成礦研究和利用方面進行了深入研究。研究煤中伴生元素的含量和分布特征,不僅可以為研究煤層的形成提供地球化學依據(jù),而且為煤炭資源的綜合開發(fā)利用等提供重要的理論依據(jù)。本文以地球化學、煤地質學、煤巖學、礦物學和沉積學等理論為基礎,運用光學顯微鏡、LTA+XRD(低溫灰化+X射線衍射)、XRF(X射線熒光光譜分析)、ICP-MS(電感耦合等離子體質譜儀)、SEM+EDS(掃描電子顯微鏡觀測+能譜儀分析)等儀器,對石灰溝克魯克組煤進行測試分析。研究了石灰溝克魯克組煤的煤質特征、礦物特征、煤巖特征、微量元素含量及分布特征特征,并據(jù)此對伴生元素在煤中的賦存狀態(tài)、分散富集程度及煤層的成煤環(huán)境等問題進行了探討。研究結果表明:(1)石灰溝石炭系克魯克組煤為低灰分、高揮發(fā)分、特低硫煤。樣品鏡質體反射率介于1.06%-1.62%之間,均值為1.21%,屬于焦煤。煤中礦物主要為粘土礦物、黃鐵礦、方解石、石英、石膏等。(2)通過對煤中伴生元素的研究發(fā)現(xiàn),研究區(qū)克魯克組煤層是海陸交互相沉積,但主要以海相沉積為主;沉積水介質溫度在27℃左右;物源具有多樣性的特點,但以花崗巖等酸性巖為主。(3)通過研究石灰溝克魯克組煤中伴生元素間相互關系、微量元素和顯微煤巖組分、無機組分相關性的研究,發(fā)現(xiàn)研究區(qū)煤中大部分微量元素的賦存與無機組分和有機組分均有關。
[Abstract]:China is rich in coal resources, but also the largest coal production and consumption in the world, in a very long period of time. The dominant position of coal in the composition of energy consumption in China will not change fundamentally. With the development of economy and the progress of science and technology, the demand for coal is increasing day by day. At the same time, the environmental problems are becoming more and more serious. In order to make full use of coal resources at the same time to protect the environment. In recent years, many domestic and foreign scholars have carried out in-depth research on the metallogenic and utilization of associated elements in coal, and studied the content and distribution characteristics of associated elements in coal. It can not only provide geochemical basis for the formation of coal seam, but also provide important theoretical basis for the comprehensive development and utilization of coal resources. In this paper, geochemistry, coal geology, coal petrology. Based on the theories of mineralogy and sedimentology, LTA XRD (low temperature ashing X-ray diffraction) was used to analyze X-ray fluorescence spectra. ICP-MS (inductively coupled plasma mass spectrometer) SEM EDS (scanning electron microscope observation energy spectrometer analysis) and other instruments. The coal quality characteristics, mineral characteristics, coal rock characteristics, trace element content and distribution characteristics of calcareous Kruke formation coal were studied. The occurrence of associated elements in coal, the degree of dispersion and enrichment and the coal forming environment of coal seam are discussed. The results show that the coal of the Carboniferous Kruke formation in Liaogou is of low ash content. The vitrinite reflectance is between 1.06-1.62%, the mean value is 1.21 and belongs to the coking coal. The minerals in the coal are mainly clay minerals, pyrite and calcite. Quartz, gypsum, etc.) through the study of associated elements in coal, it is found that the coal seams of the Kruke formation in the study area are seams interbedded by sea and land, but mainly by marine deposits. The temperature of sedimentary water medium is about 27 鈩，

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