In order to understand the process of coal self-ignite,the process of spontaneous combustion of coal was simulated with adiabatic oxidation, and the temperature-time curves and the rule that activation energy increases with temperature rise were obtained.
为了深入了解煤自燃发生发展过程,对煤自燃过程进行了绝热氧化模拟,获得了煤自燃过程升温曲线,得出煤自燃过程活化能随温度升高而逐渐上升的规律,同时对煤低温氧化过程微观结构变化规律进行了红外光谱测试。
In order to understand more deeply the process of spontaneous combustion of coal,changes of active structures in coal were tested at different temperature points with infrared spectrum analysis.
为了更深入地认识煤自燃的发生和发展过程,利用红外光谱对煤在不同氧化温度情况下的结构变化进行了测试,煤中大部分官能团随氧化温度上升其数量不断减少,这些官能团均是还原性较强的基团,是与煤中主体芳环连接的活性结构。
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.
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。
Law of index gases adsorption and condensability of coal spontaneous combustion;
煤自燃指标气体的吸附与浓缩规律
Study on sign gas for predicting coal spontaneous combustion in Wuda mine area;
乌达矿区煤自燃预测标志气体研究
Effect of physicochemical properties of coal maceral on coal spontaneous combustion;
煤岩组分的物化性质对煤自燃的影响
Through analyzing on the components and self-ignite mechanism of raw coal in Datong Shangshenjian Coal Washery, this paper finds the reasons of the coal self-ignite, and works out some measures for preventing the coal self-ignite.
通过对大同上深涧选煤厂原料煤组成以及自燃机理的分析,找出了原煤自燃的因素,并制定了防止自燃的措施。
The primary cause of coal self-ignite is all of coal has the characteristic of heat liberation of oxidation.
任何一种煤都具有氧化放热性是煤自燃的根本原因，煤自燃氧化放热效应的主要影响因素包括煤分子结构、温度、氧浓度和松散煤体粒度。
Both connections coal self-ignite with oxygen concentration and range of oxidation zone with air-leak intensity are analyzed.
:根据传热学和化学动力学理论 ,推导出采空区下限氧浓度和氧化带宽度的计算方法 ,并分析了煤自燃与氧浓度、氧化带宽度与漏风强度的关系 在此基础上 ,对采空区注氮后相关参数的变化规律进行了定量研究 根据理论推导 ,确定出防治采空区浮煤自燃的最佳注氮参数 ,为采空区注氮后自燃火灾的预测及防治提供了理论依据 参