[1]蔡崧.矿料堆粉尘的吹蚀与消散[J].东南大学学报(自然科学版),1985,15(1):60-69.[doi:10.3969/j.issn.1001-0505.1985.01.006]
 Cai Song.Fugitive Emission in the Form of Dust from Ore Storage Pile[J].Journal of Southeast University (Natural Science Edition),1985,15(1):60-69.[doi:10.3969/j.issn.1001-0505.1985.01.006]
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矿料堆粉尘的吹蚀与消散()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
15
期数:
1985年第1期
页码:
60-69
栏目:
本刊信息
出版日期:
1985-03-20

文章信息/Info

Title:
Fugitive Emission in the Form of Dust from Ore Storage Pile
作者:
蔡崧
南京工学院动力工程系 讲师
Author(s):
Cai Song?
Department of Power Engineering
关键词:
粉尘颗粒 料堆 粉尘浓度分布 粘附概率 涡流扩散系数 风速 吹出 地面 吹蚀 粉尘含量
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1985.01.006
摘要:
本文通过理论分析与计算,对风从矿料堆吹出粉尘,以及粉尘在大气中的扩散沉降过程进行了研究。计算给出了在不同的粉尘颗粒度、风速和粘附概率下从料堆中吹出的粉尘浓度随高度和距离变化的观律。指出,不同的沉积和粘附概率会导致靠近地面处粉尘的浓度分布呈现不同特征。但对离地20—30m以上空间的粉尘浓度分布影响不大。如果使通过料堆的穿透风速减少到自然风速的1%,将可大大减少粉尘的吹蚀。
Abstract:
In this paper the processes of fugitive emission from storage pile and of dust diffusion and deposition in atmosphere have been studied by means of theoretical analysis and compulation. Various calculated concentration of particles versus height and distance at different particle sizes, velocities and ground sticking probabilities is given. Which indicates that different depositng and sticking probaility will cause different distribution characteristics of particle concentration near the ground level. The effects will be small when the height is more than 20~30 meters. The wind loss of particles from storage will significantly decrease if the blowing velocity through pile can be reduced to about 1% of the nature wind velocity by using a proper technique in ore store.
更新日期/Last Update: 2013-05-01