發(fā)布時間：2018-07-12 19:11

  本文選題：低濃度瓦斯 + 煤粉質(zhì)量濃度�。� 參考：《熱力發(fā)電》2016年10期

【摘要】：為了解低濃度瓦斯與煤粉的耦合特性,自行建立了耦合體系的著火溫度實驗系統(tǒng),對低濃度瓦斯與煤粉耦合體系著火溫度進行了實驗研究。結(jié)果表明:耦合體系的著火溫度比低濃度瓦斯的著火溫度降低了約180℃;當(dāng)甲烷體積分數(shù)小于2%時,耦合體系著火溫度比煤粉的著火溫度低,而當(dāng)甲烷體積分數(shù)高于2%時,耦合體系的著火溫度比煤粉的著火溫度高,且隨著甲烷體積分數(shù)的增加,耦合體系的著火溫度升高;當(dāng)煤粉質(zhì)量濃度增加時,耦合體系著火溫度先下降后上升,最佳煤粉質(zhì)量濃度為700g/m3;當(dāng)煤粉粒徑從65~70μm增加到100~105μm時,著火溫度升高了約110℃;當(dāng)煤粉揮發(fā)分從8.99%增加到30.99%時,耦合體系的著火溫度降低了159℃。
[Abstract]:In order to understand the coupling characteristics of low concentration gas and pulverized coal, an experimental system of ignition temperature of coupling system was established, and the ignition temperature of coupling system of low concentration gas and coal powder was studied experimentally. The results show that the ignition temperature of the coupled system is about 180 鈩，

本文編號：2118200