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扬尘源粒度组成筛分方法比较

黄玉虎 曲 松 宋光武 李 钢 田 刚

黄玉虎, 曲 松, 宋光武, 李 钢, 田 刚. 扬尘源粒度组成筛分方法比较[J]. 环境科学研究, 2013, 26(5): 522-526.
引用本文: 黄玉虎, 曲 松, 宋光武, 李 钢, 田 刚. 扬尘源粒度组成筛分方法比较[J]. 环境科学研究, 2013, 26(5): 522-526.
HUANG Yu-hu, QU Song, SONG Guang-wu, LI Gang, TIAN Gang. Comparison of Screening Methods of Size Distribution of Fugitive Dust Source[J]. Research of Environmental Sciences, 2013, 26(5): 522-526.
Citation: HUANG Yu-hu, QU Song, SONG Guang-wu, LI Gang, TIAN Gang. Comparison of Screening Methods of Size Distribution of Fugitive Dust Source[J]. Research of Environmental Sciences, 2013, 26(5): 522-526.

扬尘源粒度组成筛分方法比较

基金项目: 国家环境保护公益性行业科研专项(200709030);北京市环境保护科学研究院科技基金项目(2012-B-06)

Comparison of Screening Methods of Size Distribution of Fugitive Dust Source

  • 摘要: 为建立扬尘源筛分规范依据,选取F150标准砂和道路尘作为待测样品,对比国产3种振动方式(电动式、震击式和拍击式)振筛机和3个厂家试验筛的筛分性能. 结果表明:①经过拍击式振筛机和F150标准砂检验,A、B、C三厂试验筛的筛分性能差异较大,得到200目(75μm)试验筛的筛上累计含量(以质量分数计)分别为78.9%、65.9%和57.9%,B厂和C厂结果小于F150标准砂76.1%的基准值;②3种振筛机的筛分性能也存在差异,震击式振筛机筛出率略小于拍击式振筛机,但电动式振筛机筛分不彻底,其对道路尘样品中粒径≤75μm和粒径≤38μm粒子的筛出率分别只有另外2种振筛机的1/2和1/4;③3种振筛机筛分结果一致性顺序为拍击式>震击式>电动式. 建议使用拍击式振筛机或震击式振筛机与性能好的A厂试验筛组合筛分得到粒径≤75μm的样品,使用拍击式振筛机和性能好的A厂试验筛组合筛分得到粒径≤38μm的样品.

     

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出版历程
  • 收稿日期:  2012-12-28
  • 修回日期:  2013-03-11
  • 刊出日期:  2013-05-25

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