煤二次氧化气体特征实验研究

Experiment Study on Gas Characteristics of Coal Secondary Oxidation

摘要: 为了有效预测预防复采工作面煤自燃事故，通过煤自燃程序升温实验台，对煤体进行了预氧化、绝氧降温处理后进行二次氧化程序升温，研究发现二次氧化过程中CO生成率、耗氧速率和最大放热强度较初次氧化时均有所升高，CO₂生成率大幅降低，对复采工作面煤自燃监测预报有一定指导意义。
- 复采工作面 /
- 绝氧降温 /
- 二次氧化 /
- 气体特征
Abstract: In order to effectively forecast and prevent coal spontaneous combustion accident in second mining face, it used temperature programming experiment table of coal spontaneous combustion to carry out secondary oxidation temperature programming after pre-oxidized and anaerobic cooling treatment for coal body. The study showed that the CO production rate, oxygen consumption rate and maximum heat intensity in secondary oxidation were higher than those in the initial oxidation, and CO₂ production rate significantly reduced, which had certain guiding significance for monitoring and forecasting coal spontaneous combustion in second mining face.
- second mining face /
- anaerobic cooling /
- secondary oxidation /
- gas characteristics

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