Experimental simulation and numerical analysis of coal spontaneous combustion process at l

Experimental simulation and numerical analysis of coal spontaneous combustion process at low

temperature

文虎; 徐精彩; 葛岭梅

【期刊名称】《《煤炭学报：英文版》》 【年(卷),期】2001(007)002

【摘要】The characteristic of coal spontaneous, combustion includes oxidative property and exothermic capacity. It can really simulate the process of coal spontaneous combustion to use the large-scale experimental unit loading coal ! 000 kg. According to the field change of gas concentration and coal temperature determined through experiment of coal self-ignite at low temperature stage, and on the basis of hydromechanics and heat-transfer theory, some parameters can be calculated at different low temperature stage, such as, oxygen consumption rate, heat liberation intensity. It offers a theoretic criterion for quantitatively analyzing characteristic of coal self-ignite and forecasting coal spontaneous combustion. According to coal exothermic capability and its thermal storage surroundings, thermal equilibrium is applied to deduce the computational method of limit parameter of coal self-ignite. It offers a quantitative theoretic criterion for coal self-ignite forecasting and preventing. According to the measurement and test of spontaneous combustion of Haibei coal, some token parameter of

Haibei coal,spontaneous combustion is quantitatively analyzed, such as, spontaneous combustion period of coal, critical temperature, oxygen consumption rate, heat liberation intensity, and limit parameter of coal self-ignite.

【总页数】6页(P.61-66)

【关键词】煤; 活化能理论; 自燃现象; 氧气; 低温氧化; 放热强度; 极限参数; 数值传热学

【作者】文虎; 徐精彩; 葛岭梅

【作者单位】Dept.ofMiningEngineering Xi＇anUniversityofScience＆Technology Xi＇an710054 China 【正文语种】中文 【中图分类】TD752.2 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_journal-coal-english_thesis/0201275540937.html 【相关文献】

1.Experimental simulation and numerical analysis of coal spontaneous combustion process at low temperature* [J], WEN Hu; XU Jing-cai; GE Ling-mei

2.Numerical Simulation of NOx Formation in Coal Combustion with Inlet Natural Gas Burning [J], 张宇; 周力行; 魏小林; 盛宏至

3.Numerical simulation and experiment analysis of improving

permeability by deep-hole presplitting explosion in high gassy and low permeability coal seam [J], CAI Feng; LIU Ze-gong; LIN Bai-quan; LI Wei

4.Numerical simulation and experiment analysis of improving permeability by deep-hole presplitting explosion in high gassy and low permeability coal seam [J], CAI Feng; LIU Ze-gong; LIN Bai-quan; LI Wei

5.Numerical simulation of roll temperature field and analysis of influence factor during the single-stand reversing cold rolling process [J], DAI Jingge; WANG Kangjian

以上内容为文献基本信息，获取文献全文请下载