张大明;马云东;

• 1:辽宁工程技术大学矿业学院
• 2:大连交通大学土木与安全工程学院

摘要(Abstract)：

针对综掘工作面掘进过程中粉尘污染问题,设计了一种新型高效的风幕控尘除尘系统,利用风幕风速衰减试验分析了风幕风速与距出口距离衰减的关系,当风幕末端风速达到2 m/s以上就能够有效控制呼吸性粉尘逃逸,另外,利用数值模拟的方法,对风幕控尘除尘系统工作原理进行了模拟,当风幕初速度为15 m/s、除尘风筒负压为-250 Pa时,风流到达巷道壁时的风速均达到了3 m/s以上,风幕控尘除尘系统起到了很好的控尘和除尘作用。并对压入式通风+湿式除尘机除尘的方式进行了数值模拟,压入式通风的风流大部分被除尘风筒吸入,掘进头和压入式风筒与除尘风筒重叠段形成了无风区,大部分粉尘颗粒和瓦斯不能够及时排出,给生产带来了极大的安全隐患。

关键词(KeyWords)： 安全工程;综掘工作面;通风除尘;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(U1261121)

作者(Authors): 张大明;马云东;

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