贵州省清镇市新桥煤矿煤质特征及开发利用前景
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摘要
贵州省清镇市新桥煤矿大地构造位置处扬子准地台的贵阳复杂构造变形区,区域上有较多的煤炭资源产出。在详细分析矿区煤层地质特征的基础上,对煤岩进行了大量的化学测试分析。结果表明:①井田含煤地层为龙潭组,含煤12～18层,其中,可采煤层5层,可采煤层平均总厚度为7.29 m,可采含煤系数为2.65%;②井田内煤的颜色为黑—灰黑色,以玻璃光泽为主,硬度多为半坚硬,部分为坚硬,少量为松软状;③各煤层多以亮煤、暗煤为主,夹少量镜煤和丝炭条带,煤岩类型主要为半亮型、半暗型煤,少量半亮—半暗型煤和暗淡型煤;④井田内可采煤层大部分为中灰分、无烟煤三号(WY03),属中高—高硫、无烟煤,经洗选后,硫分有很大程度降低,其工业用途除了主要用作民用燃料用煤外,经洗选后还可作为电力、动力、化工等用煤。在上述讨论的基础上,从煤炭资源赋存状况、开采技术条件、市场需求、自然经济条件、环境保护等方面进行了综合分析,认为新桥煤矿具备了建设规模为45万t/a矿井的生产条件,开发利用前景较好。
The tectonic location of Xinqiao Coal Mine is located in Guiyang complex tectonic deformation area of Yangtze platform,and there are a large number of coal mines in the area.Based on the detailed study of geological characteristics of coal seams of the mining area,chemical analysis and tests have been carried out on coal and rock.The study results show that:①the coal coal bearing stratum of Xinqiao Coal Mine is Longtan Formation,contains 12～18 coal layers,5 coal layers of them can be utilized,the average thickness of the recoverable coal seam is 7.29 m,and the recoverable coal coefficient is 2.65%;②the color of coal in the minefield is black to gray black,mainly for glass gloss,the hardness is mostly semi hard,some is hard and a small amount is soft;③the coal seams are mainly for bright coal and dark coal,and a small amount of mirror coal and silk carbon strip are sandwiched,the main types of coal and rock are semi bright and semi dark briquette,a small amount of semi bright semi dark briquette and dim briquette;④most of coal seams in the minefield are medium ash and anthracite No.3(WY03),which belongs to middle high sulfur and anthracite,after coal washing,sulfur content is greatly reduced,the coal resources can be used as electric power,driving force and chemical industry in addition to the main use is for civil fuel.Based on the above discussion results,the comprehensive analysis is made from various aspects of coal resource occurrence,mining technical conditions,market demand,natural economic conditions and environmental protection,it is show that Xinqiao Coal Mine has a resource production
The tectonic location of Xinqiao Coal Mine is located in Guiyang complex tectonic deformation area of Yangtze platform,and there are a large number of coal mines in the area.Based on the detailed study of geological characteristics of coal seams of the mining area,chemical analysis and tests have been carried out on coal and rock.The study results show that:①the coal coal bearing stratum of Xinqiao Coal Mine is Longtan Formation,contains 12～18 coal layers,5 coal layers of them can be utilized,the average thickness of the recoverable coal seam is 7.29 m,and the recoverable coal coefficient is 2.65%;②the color of coal in the minefield is black to gray black,mainly for glass gloss,the hardness is mostly semi hard,some is hard and a small amount is soft;③the coal seams are mainly for bright coal and dark coal,and a small amount of mirror coal and silk carbon strip are sandwiched,the main types of coal and rock are semi bright and semi dark briquette,a small amount of semi bright semi dark briquette and dim briquette;④most of coal seams in the minefield are medium ash and anthracite No.3(WY03),which belongs to middle high sulfur and anthracite,after coal washing,sulfur content is greatly reduced,the coal resources can be used as electric power,driving force and chemical industry in addition to the main use is for civil fuel.Based on the above discussion results,the comprehensive analysis is made from various aspects of coal resource occurrence,mining technical conditions,market demand,natural economic conditions and environmental protection,it is show that Xinqiao Coal Mine has a resource production
引文
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[3] 金军,徐宏杰,桑树勋,等.贵州省黔北煤田含煤地层特征分析[J].中国煤炭地质,2015(6):1-7.
[4] 周吉坤,黄培.贵州省清镇市新店西二煤层气地质条件及评价分析[J].资源信息与工程,2016,31(6):48-49.
[5] 金军,唐显贵.贵州省织金—纳雍煤田构造特征及其成因[J].中国煤炭地质,2010(3):8-12.
[6] 舒万柏.雨谷井田地质构造特征及成因分析[J].中国煤炭地质,2007(1):14-16.
[7] 刘珍奇,赵训林,郑振华.贵州省黔西煤矿区箐口煤矿岩石与煤层特征对比分析[J].资源与产业,2012,14(5):82-85.
[8] 唐显贵.贵州省煤炭资源赋存规律[J].煤田地质与勘探,2012(5):1-5.
[9] 程玛莉,崔玉朝.贵州安家寨煤矿龙潭组煤层特征及对比[J].煤炭科学技术,2011,39(10):104-107.
[10] 宋洪柱.中国煤炭资源分布特征与勘查开发前景研究[D].北京:中国地质大学(北京),2013.
[11] 陈晓华,胡永富,陈宏,等.织金江西煤矿M16煤层煤质特征浅析[C]//贵州地质科技与找矿突破论坛论文集.贵阳:贵州省地质学会,2009:163-168.
[12] 裴廷权.贵州兴仁县煤矿区砷的表生地球化学初步研究[D].贵阳:贵州大学,2006.
[13] 吴攀,裴廷权,冯丽娟,等.贵州兴仁煤矿区土壤表土与沉积物中砷的环境调查研究[J].地球与环境,2006,34(4):31-35.
[14] 陶振鹏.贵州普安—晴隆一带晚二叠世煤层中微量、稀土元素富集特征研究[D].贵阳:贵州大学,2016.
[15] 孟振.贵州青龙矿构造煤及瓦斯非均质性分布规律研究[D].徐州:中国矿业大学,2016.
[16] 秦文.普安县滇黔井田煤质特征分析与评价[J].煤质技术,2014(4):45-48.