综采工作面粉尘运动规律数值模拟及应用  

Numerical simulation on dust movement regularities at fully-mechanized coal faces and its utilization

作　　者：牛伟[1] 蒋仲安[1] 刘毅[2] 

机构地区：[1]北京科技大学教育部金属矿山高效开采与安全重点实验室,北京100083 [2]煤炭信息研究院,北京100029

出　　处：《辽宁工程技术大学学报（自然科学版）》2010年第3期357-360,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：高校博士学科专项科研基金资助项目(2006008001);北京市教育委员会共建项目建设计划基金资助项目(XK100080432)

摘　　要：为获取综采工作面喷雾降尘设计的合理参数,依据气固两相流理论,以综采工作面割煤过程中产生的粉尘运动为研究对象,建立了粉尘在矿井运动的数学模型;以峰峰集团新三矿2308综采工作面为例,利用fluent对综采工作面粉尘运动进行数值模拟,并与矿井的实际粉尘质量分数分布情况进行了比较、分析,并设计出适合该矿使用的喷雾降尘装置,工业试验结果表明:该新型气水喷雾装置除了能够除去较大粒径的粉尘外,对于呼吸性粉尘也有较好的除尘率,该成果可以在相似采煤方法下加以推广应用,对矿井的安全生产具有积极的参考价值和指导作用。In order to obtain the appropriate parameters for designing a spraying dust removal system at fully-mechanized coal faces,this paper presents a numeral model for dust removal in coal mines based on the theory of gas-solid two-phase flow and the dust movement caused during the process of coal cutting at fully-mechanized coal faces.A case study was conducted at No 2308 fully-mechanized coal face of New Third Coal Mine in Fengfeng Group.The dust movement at the fully-mechanized coal face was modeled using Fluent software.With the comparison and analysis of the actual dust concentration distribution in the mine,a spraying dust removal equipment was designed which is suitable in the mine.The method can be applied in similar coal cutting situations in other mines.

关 键 词：综采工作面 粉尘质量分数 气固两相流 数值模拟 气水雾化 

分 类 号：TP714.2[自动化与计算机技术—检测技术与自动化装置]