煤火竖直反向阴燃特性研究  

Study on Characteristics of Vertical Reverse Coal Smoldering

作　　者：胡俊 亓冠圣 李敏[2] 郑克明[2] HU Jun1,2, QI Guan-sheng1, LI Min2, ZHENG Ke-ming2(1. College of Mining and Safety Engineering, Shandong University of Science and Technology, Qingdao 266590, China; 2 School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, Chin)

机构地区：[1]山东科技大学矿业与安全工程学院,山东青岛266590 [2]中国矿业大学安全工程学院,江苏徐州221116

出　　处：《煤炭技术》2018年第6期173-176,共4页Coal Technology

基　　金：国家重点研发计划(2016YFC0801800)

摘　　要：通过在不同供风量的条件下,进行长焰煤竖直反向阴燃模拟实验,测得各供风量下长焰煤在T_1-T_4测点处的温度实时变化规律,并通过阴燃波前锋的传播计算出各风量下阴燃的传播速率,得出风量与阴燃传播速率之间的关系。研究表明,焦炭燃烧阶段的持续时间长,占据总阴燃时间的90%左右,反应温度高,是评价煤体阴燃危险性的主要依据。Under the different conditions of air supply volume, the long-flame coal vertical reverse smoldering simulation experiment was carried out to measure the real-time temperature changes at the T1-T4 measuring points. The smoldering propagation velocity at each air volume was calculated by the transmission of smoldering wave front, and the relation between the air volume and smoldering velocity was obtained. The research shows that coke combustion stage lasts long time, accounting for about 90% of the total smoldering time; the reaction temperature is high, the main basis for the evaluation of the risk of smoldering coal.

关 键 词：竖直阴燃 传播速率 供风量 焦炭燃烧 

分 类 号：TD75[矿业工程—矿井通风与安全]