李琦　王嘉阳　杨文新　闫成　杨县委　张瑞涵

摘要：为了探究水力驱动滚筒式过滤装置在优化后，滚筒转速、过滤效率、试验现象的变化，分别进行了滚筒静止、转动试验。结果显示，清水试验时，滚筒转速有明显的提升;浑水试验时，装置的过滤效率趋于稳定且有所提升;通过对试验过程的观察，减少了泥沙在滚筒头部的流失，发现滚筒转动时泥沙随滚筒在其中后部运移而后沉积，增加了泥沙与滤网的接触面积。分析认为，在装置驱动方式改进后，水流驱动滚筒转速更加稳定，进而使转速、过滤效率均提升。

关键词：过滤效率;滚筒转速;流量;含沙量;驱动方式优化

Research on the Performance of Improved Hydraulic Driven Drum Filter

LI Qi1 WANG Jiayang1 YANG Wenxin3* YAN Cheng1 YANG Xianwei1

ZHANG Ruihan2

（1.2.3.College of Water Conservancy and Civil Engineering， Xinjiang Agricultural University， Urumqi， Xinjiang， 830000 China）

Abstract： In order to explore the changes of drum speed， filtration efficiency and test phenomenon after the optimization of hydraulic driven drum filter device， the static and rotating tests of drum were carried out respectively. The results show that the rotation speed of the drum is obviously improved in the clean water test; the filtration efficiency of the device tends to be stable and improved in the muddy water test; through the observation of the test process， the loss of sediment in the head of the drum is reduced， and it is found that the sediment moves with the drum in the back and then deposits， increasing the contact area between the sediment and the filter screen. The analysis shows that after the improvement of the driving mode of the device， the rotation speed of the water flow driving drum is more stable， and the rotation speed and filtration efficiency are improved.

Key Words： Filtration efficiency; Drum speed; Flow rate; Sediment concentration; Optimization of driving mode

1 研究背景

水資源短缺问题日益严重，中国的国土面积中干旱和半干旱地区占绝大多数，成为世界上最缺水的国家其中之一，因此，我国未来水资源的形势是严峻的^[1，2]，水资源的短缺直接影响了我国农业的发展。在新疆地区，作物大量需水的生育期正是河流的汛期，80%以上的灌溉水源为地表水，主要来自于高山冰川雪水，部分来自于地下水，而地表水具有含沙量高和泥沙粒径大的特点，作为微灌灌水源会造成作物减产，严重的会造成整个微灌系统瘫痪 ^[3，4]。目前新疆大致有 1.5 万套微灌系统，首部过滤多采用多个网式过滤器并联，而堵塞问题严重威胁着过滤器的正常工作^[5]。新疆地区灌溉水源多为地表水，含有不同程度的污物及杂质，容易造成灌水器的堵塞^[6]。因此，处理灌溉用水中的泥沙对滴灌尤为重要。……