化处煤矿瓦斯治理方法的实践与研究
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摘要
随着矿井开采深度的不断增加,瓦斯涌出量不断加大,煤与瓦斯突出危险也不断增加,高瓦斯突出矿井数量也在增加,致使煤炭企业在生产过程中经常发生瓦斯窒息、瓦斯爆炸和煤与瓦斯突出事故。目前,全国重点瓦斯涌出总量已经上升到5400Mm3/a,煤炭开采过程中涌出的大量瓦斯,不仅给安全生产带来严重威胁,导致瓦斯事故的发生,造成国家财产的损失和人员的伤亡,而且还增加了煤炭企业大量的工作量和经济负担,降低了经济效益,尤其是在开采低透气性高瓦斯有突出危险煤层中,煤与瓦斯突出是严重威胁煤矿安全生产的自然灾害之一。
本论文的主要研究工作是针对单一煤层开采,煤层透气性较差的情况下,瓦斯抽放技术方面存在的问题,将瓦斯抽放技术理论应用到瓦斯抽放的实际工作当中,以实现安全、高效的生产。本文对国内外瓦斯抽放现状进行了分析,提出了适合我国瓦斯赋存条件下的抽采方法,并总结了我国瓦斯抽放存在的问题。通过研究与实践,掌握了煤层中瓦斯赋存状态及运移规律;论述了化处煤炭瓦斯抽放的现状,并针对化处矿井的瓦斯抽放技术进行了重点研究,介绍了煤层瓦斯综合治理方法,分析了其在特定条件下最佳瓦斯抽放技术的应用,提出了抽放钻孔负压二次封孔技术,并在现场实践应用取得了较好的效果,为今后该矿的瓦斯抽放工作奠定了基础。
With the increasing of the mining depth, gas emission in the coal mine, the danger of coal and gas outburst and the number of high gassy and outburst mines have been increased, which reasult in many gas suffocation, gas explosion and coal and gas outburst accidents in the production process of coal enterprises. At present, the total gas emission in the key mines has risen to 5400Mm3/a. So much gas gush out in the coal mining process, not only bring serious threats to the Safety production, lead to gas accidents, cause property loss and personnel casualties, but also increase the workload and economic burdenthe of coal enterprises, reduce the economic benefits, particularly in the mine with low air permeability and high gas, coal and gas outburst has been one of the most serious natural disasters which threat to the coal mine’s safety production.
The main task of this paper is to solve the issues in the gas drainage technology under the conditions of single seam and low permeability. And the technology has been applied to practice, which make the productions safty and efficient. In this paper, the gas drainage situation at home and abroad has been analysised, the appropriate method to our country has been recommended, and the problems existing in the gas drainage has been summarized. Through the research and practice, the occurrence condition and migration regularity of the gas in the coal seam has been mastered, and the present situation of gas drainage in Huachu coal mine has been discussesed. As a focous , the technology of gas drainage in Huachu has been reaserched. Also, the coalbed gas integrated management method has been Introduced, the best application of gas drainage technology in certain conditions has been analyzed, the negative pressure drainage borehole second hole sealing technology has been put foward, and obtained a better effect in the practice. Which laid a foundation for the gas drainage in future.
本论文的主要研究工作是针对单一煤层开采,煤层透气性较差的情况下,瓦斯抽放技术方面存在的问题,将瓦斯抽放技术理论应用到瓦斯抽放的实际工作当中,以实现安全、高效的生产。本文对国内外瓦斯抽放现状进行了分析,提出了适合我国瓦斯赋存条件下的抽采方法,并总结了我国瓦斯抽放存在的问题。通过研究与实践,掌握了煤层中瓦斯赋存状态及运移规律;论述了化处煤炭瓦斯抽放的现状,并针对化处矿井的瓦斯抽放技术进行了重点研究,介绍了煤层瓦斯综合治理方法,分析了其在特定条件下最佳瓦斯抽放技术的应用,提出了抽放钻孔负压二次封孔技术,并在现场实践应用取得了较好的效果,为今后该矿的瓦斯抽放工作奠定了基础。
With the increasing of the mining depth, gas emission in the coal mine, the danger of coal and gas outburst and the number of high gassy and outburst mines have been increased, which reasult in many gas suffocation, gas explosion and coal and gas outburst accidents in the production process of coal enterprises. At present, the total gas emission in the key mines has risen to 5400Mm3/a. So much gas gush out in the coal mining process, not only bring serious threats to the Safety production, lead to gas accidents, cause property loss and personnel casualties, but also increase the workload and economic burdenthe of coal enterprises, reduce the economic benefits, particularly in the mine with low air permeability and high gas, coal and gas outburst has been one of the most serious natural disasters which threat to the coal mine’s safety production.
The main task of this paper is to solve the issues in the gas drainage technology under the conditions of single seam and low permeability. And the technology has been applied to practice, which make the productions safty and efficient. In this paper, the gas drainage situation at home and abroad has been analysised, the appropriate method to our country has been recommended, and the problems existing in the gas drainage has been summarized. Through the research and practice, the occurrence condition and migration regularity of the gas in the coal seam has been mastered, and the present situation of gas drainage in Huachu coal mine has been discussesed. As a focous , the technology of gas drainage in Huachu has been reaserched. Also, the coalbed gas integrated management method has been Introduced, the best application of gas drainage technology in certain conditions has been analyzed, the negative pressure drainage borehole second hole sealing technology has been put foward, and obtained a better effect in the practice. Which laid a foundation for the gas drainage in future.
引文
[1]能源发展十一五规划.国家发展改革委,2007:5~6.
[2]于洪.高压水射流割缝强化瓦斯抽放技术研究[D].焦作:河南理工大学,2009.
[3]于不凡.煤矿瓦斯灾害防治及利用技术手册[M].北京:煤炭工业出版社,2002.
[4]王魁军.中国煤矿瓦斯抽采技术发展现状与前景[J].中国煤层气.2006,(1): 13-17.
[5]丁百川.矿井瓦斯抽放管网系统的优化管理技术[D].阜新:辽宁工程技术大学,2002.
[6]王钦恒.矿井瓦斯技术管理体系建设及应用[D].青岛:山东科技大学,2005.
[7]刘金龙.铁法矿区大兴矿瓦斯抽放技术研究[D].抚顺:辽宁工程技术大学,2005.
[8]Shugang Li,Minggao Qian. Simultanedous extraction of coal and coalbed methane in China.mining Science and Technology’99 (Edit by heping Xie),1999,(10): 357-360.
[9]Gregg S J,Sing K S W.Adsorption,surface Area,and Porosity[M]. New York: Academic Press, 1982.
[10]LIU Jian,LUO Yong,LIU Ze-gong,SHI BI-MING.Study on the law of methane seepage in the wall of drainage roadway in mining seam-group. JOURNAL OF COAL SCIENCE &ENGINEERING. 2005,11 (2) : 64-66.
[11]Liu Bao-xian,Wang Ze-yun,Liu Li. A Catastrophe Model of Coal and Gas Delay Outburst[J]. Journal of Sichuan Unibersity of Science and Technology,2003,(2): 86-89.
[12]陈先容.提高矿井瓦斯抽放效率的途径[M].北京:煤炭工业出版社,2005.
[13]张铁岗.矿井瓦斯综合治理技术[M].北京:煤炭工业出版社,2001.
[14]Peide Sun. Study on the mechanism of interaction for coal and methane gas. Journal of Coals Science & Engineering,2001,7(1): 58-63.
[15]Peide Sun. Coal mine gas dynamics and it applications.Scientia Geologica Sinica, 1994,3(1): 66-72.
[16]马丕梁等.煤层瓦斯抽放参数计算[J].煤矿安全,2003,34(增刊):75-77.
[17]O’Shaughnessy SM. The computer simulation of methane flowthrough strara adjacent to a working longwall face, PhD thesis, University of Nottingham, 1980.
[18]Chen aixia,Horio,Masayuki,Kojima,Toshinori. Numerical simulation of entrained flow coal gasifiers. Part I: modeling of coal gasification in an entrained flow gasifier, Chemical Engineering Science, 2000, 55(18): 3861-3874.
[19]Jie M X,Lin J H,Hu A M. Discussion and suggestion on China coalbed gas industry developmet[J]. China Coalbed Gas, 2007, 2(1): 3-6.
[20]Yu C X, Xian X F, Tan X S. Study on the gas flow theory and governing equation ofgas seepage flow in coal seams[J]. Journal of Chongqing University, 1989, 12(5): 1-10.
[21]俞启香.矿井瓦斯防治[M].徐州:中国矿业大学出版社,1992.
[22]栗振刚.高瓦斯综放工作面卸压瓦斯抽采技术研究[D].西安:西安科技大学,2009.
[23]王坤.焦坪矿区瓦斯赋存特征与抽放方法研究[D].西安:西安科技大学,2009.
[24]陶云奇.中岭煤矿采煤工作面瓦斯抽放技术研究[D].贵阳:贵州大学,2006.
[25]栗振刚.高瓦斯综放工作面卸压瓦斯抽采技术研究[D].西安:西安科技大学,2009.
[26]祁一书峰等.提高回采工作面瓦斯抽放率的途径.焦作工学院学报,2000,3: 161-164.
[27]王兆丰等.我国煤矿瓦斯抽放存在的问题及对策探讨[J].煤矿安全,2005,36(3): 29-32.
[28]宋丽强.屯留煤矿风排瓦斯极限能力和瓦斯抽采技术分析研究[D].太原:太原理工大学,2010.
[29]张霖.桃园矿高位钻孔瓦斯抽放参数优化研究[J].安徽建筑工业学院学报,2009,17(2): 70-73.
[30]林柏泉,张建国.矿井瓦斯抽放理论与技术.徐州:中国矿业大学出版社,1996.
[31]袁亮.松软低透煤层群瓦斯抽采理论与技术.北京:煤炭工业出版社,2004.
[32]金佩剑.寺河矿提高瓦斯抽采效果研究[D].阜新:辽宁工程技术大学,2008.
[33]Nie B S,He X Q, Wang E Y. Present situation and progress trend of prediction technology of coal and gas outburst[J]. China Safety Science Journal, 2003,14(6): 40-43.
[34]Xu J L, Yu B J.Characteristics of gas emission at super-length fully-mechanized top coal caving face[J]. Journal of China University of Mining and Technology, 2007, 17(4): 447-452.
[35]Cai W. From the elements analyzes to the extension theory[J]. Beijing: Scientific and Technical Documents Publishing House, 1995, 3(5): 25-28.
[36]Liu L M,Xiao H F. Application of neural network to predict coal and gas outburst[J]. Mining Safety and Environmental Protection, 2003, 30(1): 34-37.
[37]谢生荣.综采工作面的瓦斯涌出规律及瓦斯涌出量的预测[D].太原:太原理工大学, 2005.
[38]祁一书峰等.提高回采工作面瓦斯抽放率的途径.焦作工学院学报, 2000, 3:161-164.
[2]于洪.高压水射流割缝强化瓦斯抽放技术研究[D].焦作:河南理工大学,2009.
[3]于不凡.煤矿瓦斯灾害防治及利用技术手册[M].北京:煤炭工业出版社,2002.
[4]王魁军.中国煤矿瓦斯抽采技术发展现状与前景[J].中国煤层气.2006,(1): 13-17.
[5]丁百川.矿井瓦斯抽放管网系统的优化管理技术[D].阜新:辽宁工程技术大学,2002.
[6]王钦恒.矿井瓦斯技术管理体系建设及应用[D].青岛:山东科技大学,2005.
[7]刘金龙.铁法矿区大兴矿瓦斯抽放技术研究[D].抚顺:辽宁工程技术大学,2005.
[8]Shugang Li,Minggao Qian. Simultanedous extraction of coal and coalbed methane in China.mining Science and Technology’99 (Edit by heping Xie),1999,(10): 357-360.
[9]Gregg S J,Sing K S W.Adsorption,surface Area,and Porosity[M]. New York: Academic Press, 1982.
[10]LIU Jian,LUO Yong,LIU Ze-gong,SHI BI-MING.Study on the law of methane seepage in the wall of drainage roadway in mining seam-group. JOURNAL OF COAL SCIENCE &ENGINEERING. 2005,11 (2) : 64-66.
[11]Liu Bao-xian,Wang Ze-yun,Liu Li. A Catastrophe Model of Coal and Gas Delay Outburst[J]. Journal of Sichuan Unibersity of Science and Technology,2003,(2): 86-89.
[12]陈先容.提高矿井瓦斯抽放效率的途径[M].北京:煤炭工业出版社,2005.
[13]张铁岗.矿井瓦斯综合治理技术[M].北京:煤炭工业出版社,2001.
[14]Peide Sun. Study on the mechanism of interaction for coal and methane gas. Journal of Coals Science & Engineering,2001,7(1): 58-63.
[15]Peide Sun. Coal mine gas dynamics and it applications.Scientia Geologica Sinica, 1994,3(1): 66-72.
[16]马丕梁等.煤层瓦斯抽放参数计算[J].煤矿安全,2003,34(增刊):75-77.
[17]O’Shaughnessy SM. The computer simulation of methane flowthrough strara adjacent to a working longwall face, PhD thesis, University of Nottingham, 1980.
[18]Chen aixia,Horio,Masayuki,Kojima,Toshinori. Numerical simulation of entrained flow coal gasifiers. Part I: modeling of coal gasification in an entrained flow gasifier, Chemical Engineering Science, 2000, 55(18): 3861-3874.
[19]Jie M X,Lin J H,Hu A M. Discussion and suggestion on China coalbed gas industry developmet[J]. China Coalbed Gas, 2007, 2(1): 3-6.
[20]Yu C X, Xian X F, Tan X S. Study on the gas flow theory and governing equation ofgas seepage flow in coal seams[J]. Journal of Chongqing University, 1989, 12(5): 1-10.
[21]俞启香.矿井瓦斯防治[M].徐州:中国矿业大学出版社,1992.
[22]栗振刚.高瓦斯综放工作面卸压瓦斯抽采技术研究[D].西安:西安科技大学,2009.
[23]王坤.焦坪矿区瓦斯赋存特征与抽放方法研究[D].西安:西安科技大学,2009.
[24]陶云奇.中岭煤矿采煤工作面瓦斯抽放技术研究[D].贵阳:贵州大学,2006.
[25]栗振刚.高瓦斯综放工作面卸压瓦斯抽采技术研究[D].西安:西安科技大学,2009.
[26]祁一书峰等.提高回采工作面瓦斯抽放率的途径.焦作工学院学报,2000,3: 161-164.
[27]王兆丰等.我国煤矿瓦斯抽放存在的问题及对策探讨[J].煤矿安全,2005,36(3): 29-32.
[28]宋丽强.屯留煤矿风排瓦斯极限能力和瓦斯抽采技术分析研究[D].太原:太原理工大学,2010.
[29]张霖.桃园矿高位钻孔瓦斯抽放参数优化研究[J].安徽建筑工业学院学报,2009,17(2): 70-73.
[30]林柏泉,张建国.矿井瓦斯抽放理论与技术.徐州:中国矿业大学出版社,1996.
[31]袁亮.松软低透煤层群瓦斯抽采理论与技术.北京:煤炭工业出版社,2004.
[32]金佩剑.寺河矿提高瓦斯抽采效果研究[D].阜新:辽宁工程技术大学,2008.
[33]Nie B S,He X Q, Wang E Y. Present situation and progress trend of prediction technology of coal and gas outburst[J]. China Safety Science Journal, 2003,14(6): 40-43.
[34]Xu J L, Yu B J.Characteristics of gas emission at super-length fully-mechanized top coal caving face[J]. Journal of China University of Mining and Technology, 2007, 17(4): 447-452.
[35]Cai W. From the elements analyzes to the extension theory[J]. Beijing: Scientific and Technical Documents Publishing House, 1995, 3(5): 25-28.
[36]Liu L M,Xiao H F. Application of neural network to predict coal and gas outburst[J]. Mining Safety and Environmental Protection, 2003, 30(1): 34-37.
[37]谢生荣.综采工作面的瓦斯涌出规律及瓦斯涌出量的预测[D].太原:太原理工大学, 2005.
[38]祁一书峰等.提高回采工作面瓦斯抽放率的途径.焦作工学院学报, 2000, 3:161-164.