基于活化能的煤自燃倾向性研究  

Tendency of Spontaneous Combustion of Coal Based on Activation Energy

作　　者：陆伟[1] 王德明[1] 仲晓星[1] 周福宝[1] 

机构地区：[1]中国矿业大学能源与安全工程学院,江苏徐州221008

出　　处：《中国矿业大学学报》2006年第2期201-205,共5页Journal of China University of Mining & Technology

基　　金：国家重点基础研究发展规划(2001CB40960102);国家自然科学基金项目(50274068);教育部科学技术研究重点项目(01027)

摘　　要：对国内外主要煤自燃倾向性鉴定方法进行了分析和评价,指出了我国现行的煤自燃倾向性色谱吸氧鉴定法的不足之处,同时给出了煤自燃倾向性鉴定标准的基本原则.在煤自燃动力学基本方程基础上得到了煤绝热氧化方程,并设计了相应绝热氧化实验装置.通过理论和实验研究,提出了能够反应煤自燃关键阶段,即低温氧化阶段动力学参数活化能E作为煤自燃倾向性鉴定指标,并测试了3个典型煤样的低温氧化活化能E.最后,通过现场煤自燃发火期与煤物理吸附氧量和低温氧化活化能E的对比,对该指标的实用性和科学性进行了检验.Firstly, some main methods for identifying tendency of spontaneous combustion of coal were evaluated, and the shortages of the method for identifying tendency of spontaneous combustion of coal by oxygen adsorption with chromatograph in China were indicated. Simultaneity, some principles about identifying the tendency of spontaneous combustion of coal were brought forward. Based on the fundamental theory of coal to self-ignite and the adiabatic oxidation equation, the adiabatic oxidation equipment was designed and manufactured. Through the theory of adiabatic oxidation and the simulation experiments of spontaneous combustion of coal, activation energy E, which is the kinetic parameter of low-temperature oxidation of coal, is chosen as a new index of tendency of coal to self ignite,and the activation energy of three coal samples were obtained by testing. At last, the practicability and correctness of the new index were proved through comparing spontaneous combustion period with physisorption of oxygen and activation energy E.

关 键 词：煤自燃 倾向性 活化能 绝热氧化 

分 类 号：TD75[矿业工程—矿井通风与安全]