Minimum secure speed of fully mechanized coal face based on critical temperature of coal spontaneous combustion

Wei LIU; Yue-Ping QIN; Yong-Jiang HAO; Tian-Zhu GUI; Jing-Yan JIA

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Minimum secure speed of fully mechanized coal face based on critical temperature of coal spontaneous combustion

机译：基于煤自燃临界温度的综采工作面最小安全速度

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摘要

The critical temperature theory of spontaneous combustion of coal and the numerical simulation method are used to explore the minimum secure speed of fully mechanized coal face to prevent the spontaneous combustion in goaf.Combined with the actual situation of workface 31005 in a coal mine,the highest temperatures in goaf at different advancing speeds were obtained by the numerical simulation of spontaneous combustion in goaf,and then a power function equation between the highest temperature and the advancing speed was achieved by regression analysis.The advancing speed corresponding to the critical temperature value was taken as the minimum safe speed of workface based on the equation.Finally,the accuracy and reliability of the speed were verified by the actual advancing process of workface 31005.The results of this research show that the new judgment method of the minimum safety speed has a higher value to be applied in the field.

机译：运用煤的自燃临界温度理论和数值模拟方法，探讨了防止采空区自燃的综采工作面最小安全速度。结合煤矿工作面31005的实际情况通过对采空区自然燃烧的数值模拟，得到了采空区不同温度下的采空区温度，然后通过回归分析得出了最高温度与进给速度之间的幂函数方程，取与临界温度值对应的进给速度最后，通过工作面31005的实际推进过程验证了速度的准确性和可靠性。研究结果表明，新的最小安全速度判断方法具有以下优点：应用于现场的更高的值。

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来源
《煤炭学报：英文版》 |2013年第002期|147-152|共6页
作者
Wei LIU; Yue-Ping QIN; Yong-Jiang HAO; Tian-Zhu GUI; Jing-Yan JIA;
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作者单位

Faculty of Resources & Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China;

Faculty of Resources & Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China;

Faculty of Resources & Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China;

Faculty of Resources & Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China;

Faculty of Resources & Safety Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China;

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收录信息中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 eng
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Minimum secure speed of fully mechanized coal face based on critical temperature of coal spontaneous combustion

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