摘要
为优化12054工作面的回采作业环境,通过Fluent模拟软件进行粉尘运移规律分析,分别得出采煤机在顺风割煤和逆风割煤时粉尘高浓度区域的分布规律,基于数值模拟结果,结合工作面采煤设备特征,设置工作面气水喷雾降尘系统包括滚筒处、滚筒前方和采煤机摇臂与刮板输送机间,并在喷雾系统实施前后分别进行溜槽区域粉尘浓度测试,已验证喷雾降尘效果。结果表明:喷雾系统实施后,工作面顺风割煤和逆风割煤时溜槽的降尘率分别达到60%~80%和40%~70%,降尘效果显著。
In order to optimize the mining operation environment of the 12054 working face,the Fluent simulation software is used to analyze the dust movement law,and the distribution law of the high dust concentration area when the shearer cuts coal in the downwind and upwind is obtained.Based on the numerical simulation results,Combining the characteristics of coal mining equipment at the working face,set up a working face air-water spray dust reduction system including the drum,in front of the drum and between the rocker arm of the shearer and the scraper conveyor,and test the dust concentration in the chute area before and after the spray system is implemented.Verify the spray dust reduction effect.The results show that after the implementation of the spray system,the dust reduction rate of the chute when cutting coal with downwind and coal cutting with upwind is 60%~80%and 40%~70%,respectively,and the dust reduction effect is significant.
作者
苏斌
SU Bin(Xishan Coal and Electricity Malan Mine,Gujiao030200,China)
出处
《煤矿现代化》
2021年第5期78-80,共3页
Coal Mine Modernization
关键词
喷雾降尘
粉尘浓度
采煤机
降尘率
Spray dust reduction
dust concentration
coal shearer
dust reduction rate
