摘要
针对黄河流域农业灌溉用水中黄河泥沙含量高的问题,根据黄河泥沙的基本特征设计了适用于黄河水泥沙分离的碟式分离机,并按照离心力场中颗粒沉降条件计算出分离机主要参数。在黄河泥沙分离的试验中对不同试验条件下的清液进行了粒级效率分析。通过一次回归正交试验,分析了影响分离效果的主次因素并找出了最佳参数组合。通过回归正交设计得到了以分离效率Y为试验目标的回归方程,运用方差分析可知该方程极显著(a=0.005)并且拟合较好。试验结果表明:转鼓转速对分离效率影响极显著,喷嘴数量和碟片间隙对分离效率影响较小。
To solve the problem of silt separation for Yellow River＇s water for agricultural drip irrigation, the dish silt separator is designed considering the major characteristics of silt in Yellow River. The key constructional parameters of separator are calculated. The experiment system to separate the silt of Yellow River is discussed. The effects on separation efficiency are qualitatively summarized and evaluated by the analysis of gradation efficiency on limpid liquid. The major factor and best parameter combination are analysed by making a primary orthogonal regression test. The regression equation is found out based on orthogonal regression test. The results showed that the separation efficiency of separator is related to rotation speed of drum closely and is less related to nozzles and the gap between two dishes of disc separator.
出处
《排灌机械》
2007年第4期46-49,共4页
Drainage and Irrigation Machinery
基金
教育部研究基金资助项目(008K-033)
关键词
滴灌
黄河泥沙
碟式分离机
分离效率
drip irrigation
Yellow River＇s silt
dish separator
separation efficiency
