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1、第34卷第3期礦冶工程Vo1.34№32014年O6月MININGANDMETALLURGICALENGINEERINGJune2014’/\盤水金佳井田煤巖特征研究①陳玉鮮,張杰,葉軍建',程偉,。(1.六盤水職業(yè)技術(shù)學(xué)院,貴州六盤水553000;2.貴州大學(xué)礦業(yè)學(xué)院,貴:州貴陽550025;3.貴州省非金屬礦產(chǎn)資源綜合利用重點實驗室,貴州貴陽550025;4.貴州省優(yōu)勢礦產(chǎn)資源高效利用工程實驗室,貴州貴陽550025)摘要:通過顯微鏡鑒定、X射線衍射(XRD)、等離子發(fā)射光譜(ICP-AES)等方法研究
2、了六盤水煤田金佳井田1號層和3號層兩個煤樣的宏觀和顯微煤巖特征、煤質(zhì)特征、XRD圖譜和微量元素特征。結(jié)果表明,1煤樣屬于半暗煤,無機礦物質(zhì)主要為方解石和石英;3煤樣屬于半亮煤,主要無機礦物質(zhì)為石英。兩個煤樣的有機顯微組分以鏡質(zhì)組為主,3煤樣的變質(zhì)程度比1煤樣大,都屬于低灰、低硫、高熱值的煙煤,可作為優(yōu)質(zhì)動力煤使用。煤樣中微量元素Mn、Cd、Be、Y含量高于我國及世界煤的均值,其中Be和Y有一定的綜合利用潛能,cd存在潛在的環(huán)境危害,在煤炭加工利用中需要重視。關(guān)鍵詞:金佳井田;煤巖學(xué)特征;煤質(zhì)特征;微量元素中
3、圖分類號:P575文獻(xiàn)標(biāo)識碼:Adoi:10.3969/j.issn.0253-6099.2014.03.017文章編號:0253-6099(2014)03一oo57一o4ResearchonCoalPetrologicalCharacteristicsinJinjiaCoalFieldofLiutmnshuiCHENYu.xian,ZHANGJie,。,.YEJun-jian,,CHENGWei·'(1.LiupanshuiVocationalandTechnicalCollege,Liupanshui5
4、53000,Guizhou,China;2.MiningCollege,GuizhouUniversity,Guiyang550025,Guizhou,China;3.KeylaboratoryofComprehensiveUtilizationofNonmetalMineralResourcesofGuizhouProvince,Guiyang550025,GuizhouChina;4.EngineeringlaboratoryofEfwientUtilizationofPreponderantResou
5、rcesofGuizhouProvince,Guiyang550025,Guizhou,China)Abstract:Coalpetrologicalandqualitycharacteristics,crystalstructureandtraceelementsoftwocoalsamplesfromNo1andNo3coalseaminJinjiacoalfieldwerestudiedusingmicroscopicexamination,X—rayDiffraction(XRD)analysisa
6、ndinductivelycoupledplasma-atomicemissionspectrometry(ICP—AES).Resuhsshowthat,sampleNo1isasemidullcoalwithcalciteandquartzasmajorinorganicminerals,whilesampleNo3isasemibrightcoalwithquartzasthedominantinorganicminera1.BothsampleNo1andNo3arepredominantlyvit
7、riniteintheorganicmacerals,althoughsampleNO3hasahighermetamorphicgradethansampleNO1.Bothsamplesalso,beingoflowash,lowsulfurandhighcalorificvalue,canbeusedashigh—qualitypowercoa1.ThecontentsoftraceelementsMn,Cd,BeandYinbothsamplesarehisherthanthenationaland
8、woadaveragestandard,amongwhichBeandYmaybepotentiallyutilizedinacomprehensiveway.However,traceelementofCdmay[)ringharmtotheenvironment,whichshouldbepaidmoreattentioninthecoalprocessingandutilization.Keywords:J