宝日希勒露天煤矿煤层煤质特征及洁净等级划分
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摘要
为合理清洁利用内蒙古自治区陈旗煤田宝日希勒露天煤矿的煤,基于全区地质背景以及大磨拐河组含煤地层的基本情况,对矿区煤的物理性质与煤岩特性进行了分析,确定煤的工业性能和用途,选取灰分、硫分,有害元素砷、氯等4个评价因子对矿区煤的洁净等级进行初步划分。结果表明:12、21、31、32+3煤层的宏观煤岩类型多为暗煤及半暗型煤;有机显微煤岩类型以腐植组和惰质组为主。原煤属低灰、高挥发分、中高固定碳、特低硫、特低氯、特低~低磷、一级含砷煤。通过分析原煤工艺性能,说明煤层以褐煤二号为主,属中高发热量、焦油产率较高、中等结渣煤,其中21煤为易磨煤,12及31煤为极易磨煤、极难选煤。矿区总体煤洁净等级为Ⅱ级,属好洁净煤。
In order to use the coal of Baorixile Open-pit Coal Mine reasonably and cleanly in Chenqi coalfield of Inner Mongolia Autonomous Region,the physical and the petrographical properties of coal were analyzed based on the geological background of the whole region and the basic situation of the coal-bearing strata in the Damoguaihe Formation. Their feasible industrial properties and usage were determined.The cleanliness of the mining area coal seam was drew primarily from the aspects of ash,sulfur,As and Cl.The results show that durain and semidull coal are the main lithotypes of the 12,21,31 and 32+3 coal seam.Huminite and inertinite are the main organic maceral of the mining area coal.The coal is low ash,high volatile,medium and high fixed carbon,extra low sulfur,extra low chlorine,extra low ~ low phosphorus and first grade arsenic.By analyzing the process properties of raw coal,it is found that the mine seam is main No. 2 lignite,which belongs to medium-high calorific value,high tar yield,medium slagging coal.The 21 coal is easy to be ground,and 12 and 31 coal are extremely easy to be ground and refractory coal.The cleanliness class of the mining area coal is Ⅱ,which belongs to the better clean coal.The coal in the mining area can be used as coking,steam coal and civilian coal.
In order to use the coal of Baorixile Open-pit Coal Mine reasonably and cleanly in Chenqi coalfield of Inner Mongolia Autonomous Region,the physical and the petrographical properties of coal were analyzed based on the geological background of the whole region and the basic situation of the coal-bearing strata in the Damoguaihe Formation. Their feasible industrial properties and usage were determined.The cleanliness of the mining area coal seam was drew primarily from the aspects of ash,sulfur,As and Cl.The results show that durain and semidull coal are the main lithotypes of the 12,21,31 and 32+3 coal seam.Huminite and inertinite are the main organic maceral of the mining area coal.The coal is low ash,high volatile,medium and high fixed carbon,extra low sulfur,extra low chlorine,extra low ~ low phosphorus and first grade arsenic.By analyzing the process properties of raw coal,it is found that the mine seam is main No. 2 lignite,which belongs to medium-high calorific value,high tar yield,medium slagging coal.The 21 coal is easy to be ground,and 12 and 31 coal are extremely easy to be ground and refractory coal.The cleanliness class of the mining area coal is Ⅱ,which belongs to the better clean coal.The coal in the mining area can be used as coking,steam coal and civilian coal.
引文
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[3]许红星.我国煤炭清洁利用战略探讨[J].中外能源,2012,17(4):1-13.XU Hongxing.A discussion on China's clean coal utilization strategy[J].Sino-Globol Energy,2012,17(4):1-13.
[4]陆小泉.我国煤炭清洁开发利用现状及发展建议[J].煤炭工程,2016,48(3):8-10,14.LU Xiaoquan.Present situation and suggestion for clean coal development and utilization in China[J].Coal Engineering,2016,48(3):8-10,14.
[5]李聪聪.彬长矿区4号煤层煤质特征及洁净等级划分[J].洁净煤技术,2017,23(1):28-35.LI Congcong.Characteristics and cleanliness class of Binchang mining area No.4 coal seam[J].Clean Coal Technology,2017,23(1):28-35.
[6]屈晓荣.河东煤田杨家湾勘查区洁净煤等级划分[J].中国煤炭地质,2014,26(5):25-29.QU Xiaorong.Clean coal ranking in Yangjiawan exploration area,Hedong coalfield[J].Coal Geology of China,2014,26(5):25-29.
[7]李聪聪,牛军强,杨创,等.藏东北地区煤炭资源分布特征及洁净煤初步研究[J].中国煤炭地质,2016,28(11):8-11.LI Congcong,NIU Junqiang,YANG Chuang,et al.Coal resources distribution features and clean coal preliminary study in northeastern Tibet[J].Coal Geology of China,2016,28(11):8-11.
[8]郑富龙.福建二叠系童子岩组煤炭洁净等级及其分布特征[J].福建地质,2012,31(1):41-44.ZHENG Fulong.The coal lustration class and distvibution of Permian Tongziyan formation in Fujian province[J].Geology of Fujian,2012,31(1):41-44.
[9]宋兴,解锡超,董敏.河东煤田吉县车城详查区煤炭资源洁净等级评价[J].中国煤炭地质,2015(11):1-4.SONG Xing,XIE Xichao,DONG Min.Coal resources cleanliness assessment in Checheng general exploration area,Jixian County,Hedong coalfield[J].Coal Geology of China,2015(11):1-4.
[10]张传凤,赵文胜,朱建南,等.江苏徐州九里山煤田洁净煤等级划分[J].地质学刊,2016,40(2):352-356.ZHANG Chuanfeng,ZHAO Wensheng,ZHU Jiannan,et al.Ranking of clean coal in the Jiulishan coalfield of Xuzhou,Jiangsu Province[J].Journal of Geology,2016,40(2):352-356.
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[17]杨峰,冯烁,李卓艺.利用结构化学指数评价三塘湖库木苏矿区煤质及其应用[J].煤质技术,2017(5):19-21.YANG Feng,FENG Shuo,LI Zhuoyi.Evaluation of coal quality and application of coal from Santanghu Kumusu mining area using structural chemical index[J].Coal Quality Technology,2017(5):19-21.
[18]王晨玮.新疆黑眼泉北井田煤层赋存与煤质特征变化规律研究[D].西安:西安科技大学,2017.
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