基于CFD综采面多尘源风流—粉尘分布规律分析  

Analysis of air flow dust distribution law of multi dust sources in fully mechanized mining face based on CFD

作　　者：尹文婧 苏珊 张旭春 YIN Wenjing;SU Shan;ZHANG Xuchun(Weifang Engineering Vocational College,Qingzhou,262500,China)

机构地区：[1]潍坊工程职业学院,山东青州262500

出　　处：《华北科技学院学报》2023年第2期16-21,共6页Journal of North China Institute of Science and Technology

基　　金：国家自然科学基金—青年科学基金项目(5190040748)。

摘　　要：基于气固两相流理论,采用数值模拟的方法,对截割工序和移架工序两处主要尘源的产尘情况进行了研究。结果表明:液压支架移架工序主要会对产尘点下风侧0~40 m的区域内进行污染。采煤机截割工序在两滚筒处产生的粉尘质量浓度较高,约为3 g/m^(3)。两处尘源几乎覆盖了从移架工序到回风巷的人行道全部区域。将模拟数据和现场测定的粉尘质量浓度值进行了对比,平均误差为10.02%,可见数值模拟的结果是合理的,可以为井下粉尘防治提供一定的理论依据。Based on the theory of gas-solid two-phase flow,the dust production of two main dust sources in cutting process and frame moving process is studied by numerical simulation.The results show that the hydraulic support moving process will mainly pollute the area 0-40m from the downwind side of the dust producing point.The dust mass concentration generated at the two rollers in the shearer cutting process is high,about 0.003 kg/m^(3).The two dust sources almost cover the whole area of the sidewalk from the frame moving process to the return air lane.Comparing the simulated data with the dust mass concentration measured on site,the average error is 10.02%.Therefore,it is considered that the results of numerical simulation are more scientific and can provide the basis of theory for underground dust prevention and control.

关 键 词：气固两相流 数值模拟 粉尘防治 现场测定 多尘源 

分 类 号：TD714.2[矿业工程—矿井通风与安全]