无密闭墙的采区辅扇

Auxiliary fan of mining area without airtight wall

本文从理论推导和现场试验阐明了无密闭墙采区辅扇的工作原理,提出了提高辅扇工作效率的方法,列举了无密闭墙辅扇在现场应用的例子,得到了很好的应用。

This paper expounds the working principle of the auxiliary fan in the open wall mining area from the theoretical derivation and field test,the method to improve the working efficiency of auxiliary fan is put forward,examples of field application of auxiliary fan without airtight wall are given,it has been applied very well.