基于绝热氧化试验结果的煤自燃预测模型研究

发布时间：2018-06-08 03:18

本文选题：绝热氧化 + 煤自燃　；参考：《中国安全科学学报》2017年06期

【摘要】：为提高煤自燃绝热氧化试验结论的可靠性、完整性及应用性,采用绝热氧化试验方法研究褐煤和烟煤2种煤样的自燃氧化现象,根据试验结果,建立煤自燃特性预测模型,模拟褐煤和烟煤的升温速率和氧化过程,用试验数据验证模型的有效性;用验证后的模型预测不同煤质参数、动力学参数条件下煤的自燃特性。结果表明:试验和模型预测的最短着火时间褐煤分别为5.6和5.1 h,烟煤分别为43.8和42.2 h。该模型能够辅助试验获得完整的升温曲线,预测煤氧化升温到着火点所需要的时间。
[Abstract]:In order to improve the reliability, integrity and application of adiabatic oxidation test conclusions of coal spontaneous combustion, the autoignition oxidation phenomena of lignite and bituminous coal samples were studied by adiabatic oxidation test method. Based on the test results, a prediction model of coal spontaneous combustion characteristics was established. The heating rate and oxidation process of lignite and bituminous coal were simulated, and the validity of the model was verified by experimental data, and the spontaneous combustion characteristics of coal under the conditions of different coal quality parameters and kinetic parameters were predicted by the verified model. The results show that the shortest ignition time of lignite and bituminous coal are 5.6 and 5.1 h respectively, and 43.8 h and 42.2 h of bituminous coal, respectively. The model can be used to obtain complete heating curves and predict the time required for coal oxidation to heat up to the ignition point.
【作者单位】：辽宁工程技术大学矿业学院;西弗吉尼亚大学矿业工程系;辽宁工程技术大学安全科学与工程学院;
【基金】：国家自然科学基金资助(51604144) 辽宁省煤炭资源安全开采与洁净利用工程研究中心开放基金资助课题(LNTU15KF14)
【分类号】：TD752.2

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