摘要
通过配置浓度为0.75%、0.5%和0.25%的极低浓度甲烷来模拟矿井乏风,使三个浓度的甲烷通过高温炉膛,收集炉膛的气体,并对收集气体进行测试,以得到矿井乏风高温氧化的条件和规律,通过调整炉膛温度以得到不同温度下极低浓度甲烷的氧化情况。结果表明,甲烷浓度越高则氧化所需的温度越低;甲烷浓度越低,氧化所需的温度越高;根据实验研究得出极低浓度甲烷在锅炉炉膛中在750℃左右时开始被氧化,甲烷浓度逐渐降低,且在800℃左右时能完全氧化。
With a mine ventilation methane simulated with the ultra low concentration methane prepared and mixed with 0. 75%, 0. 5% and 0. 25% methane, three different concentration methane were passed through the high temperature hearth, the gas in the furnace hearth could be collected and the collected gas would be measured and tested in order to obtain the high temperature oxidation conditions and law of the mine ventilation methane. With the adjustment of the temperature of the furnace hearth, the oxidation conditions of the ultra low concentration methane under the different temperatures would be obtained. The results showed that the higher concentration of the methane, the lower temperature would be required for the oxidation. When the concentration of the methane was lower, the temperature required by the oxidation would be higher. The experiment study showed that the ultra concentration methane would be oxidized when the temperature of the furnace hearth was about 750℃, the methane concentration would be steadily reduced and the methane would be completely oxidized at the temperature about 800℃.
出处
《煤炭工程》
北大核心
2013年第1期102-104,共3页
Coal Engineering
基金
河北省自然科学基金资助项目(E2010001014)
关键词
矿井乏风
极低浓度
高温氧化
高温炉膛
mine ventilation methane
ultra low concentration
high temperature oxidation
high temperature furnace hearth
