回风巷断面突然扩大段风流净化水幕喷雾系统的设计

Design of air flow clean water curtain spray system in air-return way sudden expansion section

针对贵州省六盘水矿区实际降尘情况,在喷雾的雾化及湿式除尘理论的基础上,利用回风巷断面突然变化降尘方法,根据六盘水矿区响水煤矿W134综采工作面回风巷的具体特点,剖析构建液滴捕尘效率和喷雾除尘效率的计算模型,并在不同水压下运用Matlab7.0仿真,得到在不同喷嘴孔径条件下的喷雾除尘效率曲线,设计了回风巷断面突然扩大段水幕喷雾系统。

With reference to the actual dust situation in Liupanshui Mine,the method of airreturn way sudden changing was used based upon the theories of spray atomization and wet dust removal.According to the specific characteristics in the W134air-return way of fully-mechanized coal face of Xiangshui Mine in Liupanshui,Guizhou Province,the authors analyzed on building efficiency of a single droplet catching and calculation model of spray dust removal efficiency.Meanwhile Matlab7.0software has been used to simulate spray efficiency curve under different water pressures and designed the spray system of the air flow clean water curtain in air-return way sudden expansion section.