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抽尘风筒内粉尘沉积规律模拟研究

XU Yang-ming,LI De-wen,GONG Xiao-bing,XU Sheng-dong,WANG Zhi-bao

Coal Technology（2020）

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Abstract
为研究抽风风筒内粉尘的沉积特性,采用数值模拟计算,研究了不同粒径粉尘随风速变化的规律,得出不同粒径粉尘随风速变化的沉积范围,结合试验的数据结果对风筒内粉尘的沉积质量、沉积率进行分析.结果 表明:风速为5～15 m/s时,粒径为25～35μm粉尘的沉积范围、沉积质量随风速变化较大,增大风速可降低粉尘在风筒内的沉积率,除尘器前端抽尘风筒长度不宜超过30 m.
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