Symbiotic disasters of mine gas and coal spontaneous combustion: coupling relationship, disaster mechanism, prevention and control technology

doi:10.16265/j.cnki.issn 1003-3033.2020.10.021

Abstract

Abstract: In order to explore key scientific issues of prevention and control of gas and coal spontaneous combustion in mines, and to develop intelligent technology and equipment as well as to ensure safe mining of high gassy and flammable coal seam, based on complex evolution process of multi-scale, multi-temporal and multi-physical-chemical field coupling, symbiotic disasters were analyzed from two aspects, namely inhibition of gas on coal oxidation and spontaneous combustion and impacts of the latter on gas explosion limit. Then, a fluid solid coupling model of gas drainage and a fluid solid thermal coupling model of coal spontaneous combustion were established to reveal mechanism of symbiotic disasters considering deformation process of coal matrix caused by its gas diffusion and seepage, fracture gas air mixed flow and coal adsorption or desorption. Finally, prevention and control theory and technology were summarized, and future development trend was prospected. The results show that such symbiotic disaster is an outcome of multiple coupling in air leakage oxygen field, heat storage temperature field, gas distribution field, etc., and the key of its prevention and control lies in accurate identification of dynamic risks, real-time early warning and rapid implementation of responsive measures.

Key words: mine gas, coal spontaneous combustion, symbiotic disasters, coupling, disaster mechanism, prevention and control technology

CLC Number:

X915.5

ZHANG Jufeng, SHI Shiliang, LU Yi, YOU Bo. Symbiotic disasters of mine gas and coal spontaneous combustion: coupling relationship, disaster mechanism, prevention and control technology[J]. China Safety Science Journal, 2020, 30(10): 149-155.

References

[1] 吴刚, 刘虹. 中国能源革命与煤炭的思考[J]. 四川大学学报:哲学社会科学版, 2016(3): 89-93.
WU Gang, LIU Hong. Some thoughts on China's energy revolution and the coal industry[J]. Journal of Sichuan University: Social Science Edition, 2016(3): 89-93.
[2] 张津嘉, 许开立, 王贝贝, 等. 特别重大煤矿瓦斯爆炸事故致因分析及管理模式研究[J]. 中国安全科学学报, 2016,26(2): 73-78.
ZHANG Jinjia, XU Kaili, WANG Beibei, et al. Extraordinarily serious gas explosion accidents in coal mines: analysis of causes and research on management mode[J]. China Safety Science Journal, 2016,26(2): 73-78.
[3] 煤矿安全网. 陕西省铜川矿务局陈家山煤矿“11·28”特别重大瓦斯爆炸事故案例分析[EB/OL].(2012-08-03). http://www.mkaq.org/html/2012/08/03/145290.shtml.
[4] 煤矿安监局事故调查司. 吉林省吉煤集团通化矿业集团公司八宝煤业公司“3·29”特别重大瓦斯爆炸事故调查报告[EB/OL].(2020-04-22). http://www.chinacoal-safety.gov.cn/zfxxgk/fdzdgknr/sgcc/sgbg/202004/t20200422_350724.shtml.
[5] 宋万新, 杨胜强, 蒋春林. 含瓦斯风流条件下煤自燃产物CO生成规律的实验研究[J]. 煤炭学报, 2012,37(8): 1 320-1 325.
SONG Wanxin, YANG Shengqiang, JIANG Chunlin, et al. Experimental research on the formation of CO during coal spontaneous combustion under the condition of methane-contained airflow[J]. Journal of China Coal Society, 2012,37(8): 1 320-1 325.
[6] BEAMISH B B, JABOURI I. Factors affecting hot spot development in bulk coal and associated gas evolution[C]. Coal Operators Conference, 2005: 186-193.
[7] 李宗翔, 贾化成, 毕强, 等. 放顶煤采空区瓦斯源强度与自燃的关联性[J]. 煤炭学报, 2012,37(增1): 120-125.
LI Zongxiang, JIA Huacheng, BI Qiang, et al. Study on relevance between gas source strength and spontaneous combustion in goaf of top coal caving[J]. Journal of China Coal Society, 2012,37(S1): 120-125.
[8] 王政, 李宗翔. 高位钻孔抽采对遗煤自燃影响的数值模拟研究[J]. 矿业安全与环保, 2017,44(4):1-5.
WANG Zheng, LI Zongxiang. Numerical simulation study on influence of gas drainage by high-level boreholes on spontaneous combustion of residual coal[J]. Mining Safety & Environmental Protection, 2017,44(4):1-5.
[9] 许满贵, 徐精彩. 工业可燃气体爆炸极限及其计算[J]. 西安科技大学学报, 2005,25(2): 139-142.
XU Mangui, XU Jingcai. Explosion limits and calculated methods of combustible gas [J]. Journal of Xi'an University of Science and Technology, 2005,25(2): 139-142.
[10] 秦波涛, 张雷林, 王德明. 采空区煤自燃引爆瓦斯的机理及控制技术[J]. 煤炭学报, 2009,34(12): 1 655-1 659.
QIN Botao, ZHANG Leilin, WANG Deming, et al. Mechanism and restraining technology on spontaneous combustion of coal detonating gas in goaf [J]. Journal of China Coal Society, 2009,34(12): 1 655-1 659.
[11] 贾宝山, 李春苗, 胡如霞, 等. C₂H₆/CO₂组分构成对瓦斯着火延迟时间的影响规律研究[J]. 火灾科学, 2016, 25(1): 1-13.
JIA Baoshan, LI Chunmiao, HU Ruxia, et al. Influence of C₂H₆/CO₂ components on ignition delay time of methane [J]. 2016,25(1): 1-13.
[12] 罗振敏, 王涛, 文虎, 等. CO对CH₄爆炸及自由基发射光谱特性的影响[J]. 煤炭学报, 2019,44(7): 2 167-2 177.
LUO Zhenmin, WANG Tao, WEN Hu, et al. Explosion and flame emission spectra characteristics of CH₄-airmixtures with CO addition [J].Journal of China Coal Society, 2019,44(7): 2 167-2 177.
[13] 周福宝. 瓦斯与煤自燃共存研究(I):致灾机理[J]. 煤炭学报, 2012,37(5): 843-849.
ZHOU Fubao. Study on the coexistence of gas and coal spontaneous combustion(I):disaster mechanism[J].Journal of China Coal Society, 2012,37(5): 843-849.
[14] 夏同强. 瓦斯与煤自燃多场耦合致灾机理研究[D]. 徐州: 中国矿业大学, 2015.
XIA Tongqiang. Multi-physics coupling mechanism of co-existence hazards for coal spontaneous combustion and gas[D].Xuzhou: China University of Mining and Technology, 2015.
[15] 高洋. 煤矿开采引起的采空区瓦斯与煤自燃共生灾害研究[D]. 北京: 中国矿业大学(北京), 2014.
GAO Yang. Study on symbiotic disasters of gas and spontaneous combustion of coal in the gob area by mining[D]. Beijing: China University of Mining and Technology(Beijing), 2014.
[16] 杨胜强, 秦毅, 孙家伟, 等. 高瓦斯易自燃煤层瓦斯与自燃复合致灾机理研究[J]. 煤炭学报, 2014,39(6):1 094-1 101.
YANG Shengqiang, QIN Yi, SUN Jiawei, et al. Research on coupling hazard mechanism of mine gas and coal fire for a gassy and high spontaneous combustion propensity coal seam[J]. Journal of China Coal Society, 2014,39(6):1 094-1 101.
[17] 邸帅, 王继仁, 郝朝瑜, 等. 多场耦合作用下瓦斯与煤自燃协同预防数值模拟[J]. 安全与环境学报, 2018,18(2): 497-503.
DI Shuai, WANG Jiren, HAO Chaoyu, et al. Numerical simulation of synergistic prevention from the gas and coal spontaneous combustion under multi-field coupling [J]. Journal of Safety and Environment, 2018,18(2): 497-503.
[18] 刘振岭, 文虎, 刘洁, 等. 采空区瓦斯与煤自燃协同防控关键参数研究[J]. 西安科技大学学报, 2016,36(4): 457-462.
LIU Zhenling, WEN Hu, LIU Jie, et al. Parametric research of the coordination prevention technology of methane and coal self-heating ingoaf of close distance coal seams[J]. Journal of Xi'an University of Science and Technology, 2016, 36(4): 457-462.
[19] 屈昀,高锦彪, 赵鹏翔, 等. 高抽巷负压对采空区瓦斯涌出及自燃 “三带”影响的数值模拟[J]. 中国煤炭, 2017,43(9):98-101,143.
QU Yun, GAO Jinbiao, ZHAO Pengxiang, et al. Numerical simulation of influence of negative pressure at high pumping lane on "Three Zone" of gas emission and spontaneous combustion in gob[J]. China Coal, 2017,43(9):98-101,143.
[20] 周福宝, 夏同强, 史波波. 瓦斯与煤自燃共存研究(II):防治新技术[J]. 煤炭学报, 2013,38(3): 353-360.
ZHOU Fubao, XIA Tongqiang, SHI Bobo. Coexistence of gas and coal spontaneous combustion(II): new prevention and control technologies[J].Journal of China Coal Society, 2013,38(3): 353-360.
[21] 曹文涛, 吴超, 张连昆. 高瓦斯易自燃煤层采空区自燃与瓦斯综合防治研究[J]. 煤炭工程, 2018,50(3):63-66,70.
CAO Wentao, WU Chao, ZHANG Liankun. Research and application of comprehensive control technology for spontaneous combustion and gas in goaf of high gas and easy spontaneous combustion coal seam[J]. Coal Engineering, 2018,50(3):63-66,70.
[22] 秦波涛, 鲁义, 殷少举, 等. 近距离煤层综放面瓦斯与煤自燃复合灾害防治技术研究[J]. 采矿与安全工程学报, 2013,30(2): 311-316.
QIN Botao, LU Yi, YIN Shaoju, et al. Prevention and control technique of complex disaster caused by gas and spontaneous combustion for fully-mechanized sublevel caving face in close-distance seams[J]. Journal of Mining & Safety Engineering, 2013,30(2): 311-316.
[23] 卢平, 张士环, 朱贵旺, 等. 高瓦斯煤层综放开采瓦斯与煤自燃综合治理研究[J]. 中国安全科学学报, 2004,14(4): 68-74.
LU Ping, ZHANG Shihuan, ZHU Guiwang, et al. Comprehensive control of spontaneous combustion of gas and coal for high gas-containing seam by fully mechanized mining technology[J]. China Safety Science Journal, 2004,14(4): 68-74.
[24] 刘云峰, 张巨峰, 谢亚东, 等. 高位钻孔采空区瓦斯抽采与洒浆防灭火技术实践[J].煤炭科学技术, 2013,41(4): 53-56.
LIU Yunfeng, ZHANG Jufeng, XIE Yadong, et al. Integrated application of high level borehole gas drainage and grout spraying fire prevention and control in goaf [J]. Coal Science and Technology, 2013,41(4):53-56.
[25] 张伯涛. 瓦斯与煤自燃并存条件下综放面防灭火技术研究[J]. 煤炭工程, 2014,46(7): 58-60.
ZHANG Botao. Study on fire prevention and extinguishing technology of fully mechanized caving face with gas and coal spontaneous combustion[J]. Coal Engineering,2014,46(7):58-60.
[26] 3.29 吉林省通八宝煤矿瓦斯爆炸事故案例分析[EB/OL].(2018-12-21).http://www.mkaq.org/html/2018/12/21/469523.shtml