| 综采工作面粉尘运动规律数值模拟及应用 |
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| 引用本文： | 牛伟,蒋仲安,刘毅.综采工作面粉尘运动规律数值模拟及应用[J].辽宁工程技术大学学报(自然科学版),2010,29(3). |
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| 作者姓名： | 牛伟 蒋仲安 刘毅 |
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| 作者单位： | 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 |
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| 基金项目： | 高校博士学科专项科研基金资助项目，北京市教育委员会共建项目建设计划基金资助项目 |
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| 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。
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| 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 |
Numerical simulation on dust movement regularities at fully-mechanized coal faces and its utilization |
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| NIU Wei,JIANG Zhongan,LIU Yi.Numerical simulation on dust movement regularities at fully-mechanized coal faces and its utilization[J].Journal of Liaoning Technical University (Natural Science Edition),2010,29(3). |
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| Authors: | NIU Wei JIANG Zhongan LIU Yi |
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| Institution: | NIU Wei1,JIANG Zhongan1,LIU Yi2(1.Key Laboratory of Ministry of Education for High Efficiency Exploitation and Safety of Metal Mine,University of Science and Technology Beijing,Beijing 100083,China,2.National Institute for Occupational Safety,Beijing 100029,China) |
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| Abstract: | 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 Flue... |
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| Keywords: | fully-mechanized coal faces mass fraction of dust gas-solid two-phase flow numerical simulation air-water spraying |
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