The paper analyzes the causes of spontaneousignition in caving mining in Shaanxi Huoshizui coal mine and puts forward reasonable prevention measures.
对陕西火石咀煤矿厚煤层放顶煤开采自然发火原因进行了分析，并提出了合理的防治措施。
2
Improves the spontaneous auto-ignition point of diesel fuel, which shortens ignition lag time.
改善自发自燃点的柴油燃料，点火延迟时间缩短。
3
The free radicals can make spontaneous combustion activation energy of diesel fuel reduced greatly and shorten the ignition delay period, and thus improve the combustion performance of diesel engine.