| Cite this article: | 刘清霞,翟国亮,李景海,等.微灌石英砂颗粒表面滞纳能力计算与分析[J].灌溉排水学报,,():-. |
| Liu Qing-xia,Zhai Guoliang,Li Jinghai,et al.微灌石英砂颗粒表面滞纳能力计算与分析[J].灌溉排水学报,,():-. |
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| Calculation and analysis of the surface retention capacity of quartz sand in micro-irrigation |
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Liu Qing-xia1,2,3,2,4,2, Zhai Guoliang3, Li Jinghai5, Li Guoqiang6, Deng zhong3
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1.Anyang Institute of Technology School of Civil and Architectural Engineering,Anyang,;2.China;3.Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences;4.Anyang No Senior High School Mathematics Teaching Group,Anyang,;5.Anyang Institute of Technology School of Civil and Architectural Engineering,Anyang;6.Anyang No Senior High School Mathematics Teaching Group,Anyang
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| Abstract: |
| The retention capacity of sand particles in micro irrigation has a direct impact on the filtration performance of the sand filter, which has an important impact on the filtration effect of the filter. In order to analyze the ability of the surface of quartz sand particles to hold the impurities in the filtered water, three kinds of quartz sand filter layer with the diameter range 1.0 ~ 1.18 mm 、1.18 ~ 1.4 mm and 1.4 ~ 1.7 mm respectively were studied as research objects. And the corrugation width corresponding to the maximum height of the surface profile and the maximum height of the profile is measured by the three-dimensional surface topography instrument. On this basis, the mechanism of the sand particles holding the impurities in the filtered water is analyzed and calculated The ability of sand particles to retain impurities in water can provide technical reference for the selection and processing of filter materials. |
| Key words: Quartz Sand Filter; Roughness; Micro-irrigation; Retention capacity |
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