煤矿采煤工作面粉尘运移规律研究

Study on the Law of Dust Migration in Coal Mining Face

为了更好地治理采煤工作面粉尘,本文通过对山西国投塔山煤矿8360采煤工作面进行现场实测,得出进风顺槽、工作面、回风顺槽的全尘及呼吸性粉尘运移规律。研究显示:进风顺槽粉尘浓度较小,采煤工作面粉尘浓度最高出现在采煤机割煤位置处,全尘和呼吸性粉尘最高浓度分别为150mg/m^3,48mg/m^3,回风顺槽粉尘浓度随着距工作面距离的增大而减小。

In order to better deal with dust control of mining face, this article through to the measured on site measurement of 8360 mining face, Guotou Tashan Coal Mine in Shanxi Province come into wind trough, working face, the return air along the trough all the dust and dust migration regularity. Research shows that： in the wind along the groove less dust concentration, coal mining working face coal dust concentration is highest in coal winning machine cutting location, dust and dust all the highest concentration of 150mg/m3, respectively 48mg/m3, the return air along the trough dust concentration and decreases as distance working distance.