基于煤自燃倾向性的绝热氧化时间预测方法研究

发布时间：2018-01-29 03:12

本文关键词： 煤自燃倾向性绝热氧化预测模型曲线拟合　出处：《科学技术与工程》2017年21期 　论文类型：期刊论文

【摘要】：针对煤自燃倾向性鉴定是一个模糊的等级概念,难以准确指导煤矿采取措施进行防灭火。提出了建立基于煤自燃倾向性的绝热氧化时间预测方法,即通过煤的自燃倾向性测试来预测其绝热氧化时间,用绝热氧化时间这种准确、直观的煤自然发火危险性判定标准来量化煤自燃倾向性,使其更具参考及指导意义。优选氧化动力学方法测试了10种典型煤样的自燃倾向性,并将其结果与实验条件下测量的绝热氧化时间数据进行曲线拟合,建立了基于煤自燃倾向性的绝热氧化时间预测方法。随后从煤氧化机理方面进行分析并进行实验验证,结果显示该模型是科学、合理的,能够清晰、准确地反映出煤的自然发火危险性。
[Abstract]:In view of the fact that the evaluation of coal spontaneous combustion tendency is a fuzzy concept, it is difficult to guide coal mine to take measures to prevent and extinguish fire accurately. A prediction method of adiabatic oxidation time based on coal spontaneous combustion tendency is proposed. That is to say, the adiabatic oxidation time is predicted by testing the spontaneous combustion tendency of coal, and the accurate and intuitionistic criterion of coal spontaneous combustion risk is used to quantify the spontaneous combustion tendency of coal. The autoignition tendency of 10 typical coal samples was tested by the optimal oxidation kinetic method, and the results were fitted with the adiabatic oxidation time data measured under the experimental conditions. The prediction method of adiabatic oxidation time based on coal spontaneous combustion tendency is established, and then analyzed from the coal oxidation mechanism and verified by experiments. The results show that the model is scientific, reasonable and clear. It accurately reflects the natural combustion risk of coal.
【作者单位】：中国矿业大学煤矿瓦斯与火灾防治教育部重点实验室中国矿业大学安全工程学院;
【基金】：国家重点研发计划(2016YFC0801800)资助
【分类号】：TD752.2
【正文快照】： (2016YFC0801800)资助引用格式:底翠翠,辛海会,李金帅.基于煤自燃倾向性的绝热氧化时间预测方法研究[J].科学技术与工程,2017,17(21):13—17Di Cuicui,Xin Haihui,LI Jinshuai.Research of prediction method ofadiabatic oxidation time based on the propensity of coal to

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