水浸煤体自燃极限参数和氧化动力学的研究  

Research of Limit Parameters and Oxidation Kinetics of Water-logging Coal Self-ignition

作　　者：邓军[1,2] 张扬[1,2] 李成会[1,2] 李青蔚[1,2] 乌力吉[1,2] 何勇军[1,2] 

机构地区：[1]教育部西部矿井开采及灾害防治重点实验室,西安710054 [2]西安科技大学能源学院,西安710054

出　　处：《煤炭技术》2016年第3期152-154,共3页Coal Technology

基　　金：陕西省自然基金(2014JM7276)

摘　　要：煤经水浸泡后的自燃特性会发生变化,为了研究水浸煤的自燃特性,采用煤自燃程序升温实验装置,进行经过3个月水浸泡煤样和原煤样的程序升温实验,研究煤的自燃特性。计算了两种情况下煤样的耗氧速率、放热强度,得出了煤自燃极限参数和表观活化能。煤经水浸泡后,煤分子的表面活性官能团增加,低温阶段的氧化放热性增强,自燃危险性增大。Coal spontaneous combustion characteristics will change after water soaking. Experimental device of temperature of coal spontaneous combustion is used to study the spontaneous combustion characters of water-logging coal by program temperature ascending experiment of three-month-long soaking coal sample and raw one. The oxygen uptake rates and exothermic of the two samples are calculated to get limit parameters of coal spontaneous combustion and apparent activation energy. After water soaking, the active functional group on the coal molecules＇ surface. Oxidation exothermicity and oxidation exothermicity enhances in the process of low temperature.

关 键 词：水浸煤 煤自燃极限参数 活化能 程序升温 

分 类 号：TD75[矿业工程—矿井通风与安全]