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不同参数对综放工作面尘流运动规律的影响

DOI: 10.3969/j.issn.1005-3026.2014.11.023, PP. 1622-1626

Keywords: 综放工作面,倾角,配风量,粉尘,数值模拟,浓度分布

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Abstract:

基于耦合的离散相模型,应用CFD软件对综放工作面内的尘流规律进行数值模拟,对比研究不同倾角、不同配风量、不同粒径粉尘参数对综放工作面粉尘浓度分布规律的影响,并与现场实测的粉尘浓度分布情况进行对比分析.结果表明,大倾角综放工作面内风流更趋于流向靠近煤壁的空间.倾角增加,呼吸性粉尘运动活跃.适当增大风量后,呼吸性粉尘易被风流携带,粉尘浓度降低明显,但风速过大易产生二次扬尘.

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