Abstract

Modern heavy-duty shearers cut coal with high production of dust particles. The screen tests of coal from Zarechnaya Mine are reported. Methane flow rate is theoretically calculated as function of dispersion phase in coal from Zarechnaya Mine at different particle size distribution of coal. It is found that methane flow rate reaches its maximum in fine coal 0–25 mm in size.

中文翻译：

---

煤粉粒径分布对高产量烟气中甲烷释放的影响

摘要

现代的重型采煤机以高尘粒产量切割煤炭。据报道，Zarechnaya煤矿的煤炭经过了筛分测试。理论上计算甲烷流量是Zarechnaya矿在煤中不同粒径分布下煤中分散相的函数。发现在0–25 mm大小的细煤中，甲烷流速达到最大值。