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《Mechanics and Engineering》 2005-04
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LI Zongxiang (Vocational College, Liaoning Technical University, Fuxin 123000, China)  
To study the complicated mechanical process of spontaneous combustion of remnant coal in goafs under the conditions of open region nitrogen injection, based on seepage continuous equation, gas dispersion equation and integrated heat transfer equation, a non-steady numerical model of spontaneous combustion of coal in nitrogen injection goaf is established, and these equations are solved by windward finite element method. The spontaneous combustion process in goaf with different flux of nitrogen is computated, and the flow pattern of air leakage and the flow pattern of nitrogen are expressed by graphs, together with the variation of oxygen and carbon monoxide concentration and temperature distribution in goaf. Some influencing factors, such as gas effusion and the advance of working front are taken into account during computation. It is concluded that a high temperature zone usually appears at the inlet air side in goaf spontaneous combustion under open region nitrogen injection, but the shape turns to narrow. The spontaneous combustion period will become long with the increase of nitrogen injection quantity until spontaneous combustion stops. Theoretical simulation result and practical nitrogen injection conditions are in general agreement.
【CateGory Index】: TD752.2
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Chinese Journal Full-text Database 4 Hits
1 LI Zongxiang MENG Xianchen JI Chuanren (Vocational College,Liaoning Technical University,Fuxin 123000,China);NON-DARCY SEEPAGE ITERATIVE ALGORITHM FOR CAVING HETEROGENEOUS FLAT FLOW FIELD[J];Mechanics in Engineering;2007-02
2 LI Zong-xiang~1, WANG Xiao-dong~2, WANG Bo~1(1. College of Vocational, Liaoning Technical University, Fuxin 123000, China; 2. Electromechanical Factory, Fuxin Mining Group, Fuxin 123000, China);Realization and application of numerical simulating program (G3)for field flow of goaf[J];;2005-04
3 LI Zong-xiang,Assoc. Prof. TI Zheng-yi,Prof. JI Yi-jun,Prof. (College of Vocational, Liaoning Technical University);Numerical Simulation of Rise Process in Temperature Field Causedby Nitrogen Injection into Goaf[J];China Safety Science Journal;2005-09
4 LI Zong-xiang1,LU Zhong-liang2,WU Qiang3,ZHANG Ai-ran4 1College of Vocational,Liaoning Technical University,Fuxin,Liaoning 123000,China 2School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo,Henan 454003,China 3Heilongjiang Institute of Science and Technology,Harbin,Heilongjiang 123000,China 4School of Energy and Safety Engineering,China University of Mining & Technology,Xuzhou,Jiangsu 221008,China;Numerical Simulation Study of Goaf Methane Drainage and Spontaneous Combustion Coupling[J];中国矿业大学学报(英文版);2007-04
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1 LI Zong-xiang~1, WU Zhi-jun~2, WANG Zhen-xiang~2( 1 College of Vocational, Liaoning Technical University, Fuxin 123000, Liaoning, China; 2 Wulong Mine, Fuxin 123000, Liaoning, China);Numeral simulation model and application of temperature rise process caused by natural burn of lossed coal in goaf[J];Journal of Safety and Environment;2004-06
2 LI Zong-xiang~1,SUN Xue-qiang~2,JIA Jin-zhang~3(1 College of Vocational,Liaoning Technical University,Fuxin 123000,Liaoning, China;2 Xiaonan Mine,Diaobingshan 112700,Liaoning,China;3 College of Resource and Environment Engineering,Liaoning Technical University,Fuxin 123000,Liaoning,China);Numerical simulation of spontaneous combustion and maleficence gas drainage in goaf with Y-Type ventilation fashion[J];Journal of Safety and Environment;2005-06
3 MA Xiu-yan~1,HAN Guo-song~2 (1.Physics Department of Anyang Teachers College,Anyang 455000,China;2.Kaifeng Educational Institute,Kaifeng 475001,China);The Mathematical Basis of the Superpose Principle and Its Usage in Physics[J];Journal of Anyang Teachers College;2006-05
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【Secondary References】
Chinese Journal Full-text Database 10 Hits
1 LI Zong-xiang1),JIA Jin-zhang1),ZHOU Zhi-lin2)1) College of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000,China2) Huaxing Mine,Yingcheng Coal Group Limited Liability Company,Jiutai 130502,China;Numerical simulation of the change process of field variables distribution in goaf caused by air reversing in working faces[J];Journal of University of Science and Technology Beijing;2010-06
2 LI Zong-xiang1,LIU Yu-zhou2,WU Qiang3(1.Vocational College,Liaoning Technical University,Fuxin,Liaoning 123000,P.R.China;2.Chongqing University,Chongqing 400030,P.R.China;3.School of Safety Engineering,Heilongjiang Institute of Science and Technology,Haerbin 150027,P.R.China);Improved Iterative Algorithm for Nonlinear Seepage in Flow Field of Caving Goaf[J];Journal of Chongqing University;2008-02
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5 LI Zong-xiang1,MENG Xian-chen1,PAN Li-ming2,XI Li-guo3(1.College of Vocational,Liaoning Technical University,Fuxin 123000,China;2.Ventilation Bureau,Fuxin Mining Group,Fuxin 123000,China;3.Haizhoulijing mine,Fuxin Mining Group,Fuxin 123000,China);Inferior spontaneous combustion state and transformation towards spontaneous combustion in goaf[J];Fire Safety Science;2007-04
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8 LI Zong-xiang~1,WU Qiang~2,WANG Zhi-qing~3(1.College of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000,China;2.Department of Safety Engineering and Technology,Heilongjiang Institute of Science and Technology,Harbin 150027,China;3.Changcun Coal Mine,Lu'an Environment and Energy Corporation Ltd.,Changzhi 046032,China);Distribution characteristic of remaining coal oxygen consumption and spontaneous combustion heating-up in goaf[J];Journal of China Coal Society;2009-05
9 WANG Jun-feng,WU Jian-ming,JIN Zhong-ming(College of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China);A new method to predict the coal spontaneous combustion zone in goaf:the application of CFD technology[J];Journal of China Coal Society;2009-11
10 LI Zong-xiang1, TI Zheng-yi1, SUN Hong-feng2, SONG Wei-lin2, LIU Yao-yu2 ( 1. Vocational College, Liaoning Technical University, Fuxin 123000, China; 2. Xiaoqing Mine, Tiefa Coal Industry Group,Diaobingshan 112700, China );Airflow Law of Goaf with Boundary of Delayed Caving Bolt Supporting Roadways[J];Journal of Hunan University of Science & Technology(Natural Science Edition);2007-04
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1 ZHANG Chun TI Zheng-yi LI Zong-xiang (College of vocation and technique,Liaoning Technical University,Liaoning 123000,China);Research on the Loading Stress Field of Goaf and the Coupling with other Fields[A];[C];2010
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