岩浆侵入区变质煤氧化动力学研究  

Oxidation kinetics of metamorphic coal in magma intrusion zone

作　　者：孙振翔 范春虎 周远康 SUN Zhenxiang;FAN Chunhu;ZHOU Yuankang(Heilongjiang Longmei Shuangyashan Mining Co.,Ltd.,Shuangyashan 155103,China;College of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]黑龙江龙煤双鸭山矿业有限责任公司,黑龙江双鸭山155103 [2]西安科技大学安全科学与工程学院,陕西西安710054

出　　处：《陕西煤炭》2025年第3期57-61,共5页Shaanxi Coal

摘　　要：为探究岩浆侵入对煤低温氧化特性的影响,以新安矿岩浆侵入区变质煤与原煤为研究对象,通过工业分析与C80微量热仪进行实验,对比研究了变质煤与原煤低温氧化热效应的差异。结果表明,变质煤的水分和挥发分降低,固定碳、灰分和变质程度升高;在不同升温速率下,变质煤的初始放热温度点和热平衡温度点均低于原煤,变质煤的放热量高于原煤,活化能低于原煤,岩浆侵入作用导致变质煤的自燃危险性高于原煤;且升温速率越小,变质煤与原煤的特征温度点越低,放热量越大,煤氧反应所需的能量越小。In order to investigate the influence of magma intrusion on the low-temperature oxidation characteristics of coal,we take the metamorphic coal and the original coal in the magma intrusion area of Xin’an Mine as the objects,and the difference of the low-temperature oxidizing thermal effect between the metamorphic coal and the original coal is comparatively investigated through the experiments carried out by the industrial analysis and the C80 microcalorimeter.The results showed that:the moisture and volatile matter of metamorphic coal decreased,and the fixed carbon,ash and metamorphic degree increased;under different heating rates,the initial exothermic temperature point and thermal equilibrium temperature point of metamorphic coal were lower than that of the original coal,the exothermic amount of metamorphic coal was higher than that of the original coal,and the activation energy was lower than that of the original coal,and the spontaneous combustion hazard of the metamorphic coal was higher than that of the original coal caused by the effect of magma intrusion;and the smaller the heating rate,the lower the characteristic temperature point of the metamorphic coal and the original coal,and the greater the exothermic amount,the smaller the energy required for coal oxygen reaction.

关 键 词：岩浆侵入 变质煤 煤自燃 放热量 活化能 

分 类 号：TD752.2[矿业工程—矿井通风与安全]