摘要
南水北调中线工程干渠藻类滋生,从干渠内拦截或者从边坡抽吸的藻水混合物数量很大,受场地制约和环保要求必须对藻水混合物进行藻水分离。利用振动筛的工作原理,由激振系统产生的激振力带动筛箱振动,通过高密度筛网实现藻水分离,分离后的水可直接流回干渠或灌溉干渠两侧绿化带,分离后的藻浆进行收集外运。针对藻类浓度的变化,可以改变藻水分离振动装置激振系统的频率和振幅,实现可调频、可调幅的振动分离功能。该装置可以与干渠节制闸自动化拦藻设备或渠道边坡除藻车配合使用,实现拦藻、除藻和藻水分离同步进行。试验结果表明,该装置性能稳定、运行安全可靠,藻水分离效果良好,机械自动化水平高,可以为南水北调中线工程环境维护节约大量人力、物力和财力。
The algae grow rapidly in the main canal of the Mid⁃Route of South⁃to⁃North Water Diversion Project.There are too much mixtures of algae and water removed from the main canal or the side slope,and the algae separation is necessary for the limited space and the environmental requirements.The working principle of the vibrating screen was used,and the vibration of the screen box was induced by the excitation system of the algae separation equipment,and the algae were separated by the high density screen.The water was used to irrigate the greenbelt along both sides of the main canal or returned to the main canal after filtration,and the algae were collected for transportation.The frequency and am⁃plitude of the excitation system could be changed according to the different concentration of the algae water,therefore the algae vibrational sepa⁃ration equipment was both frequency⁃adjustable and amplitude⁃adjustable.This equipment could work together with the automatic mechanical al⁃gae removal equipment of the main canal sluice or the algae removal truck of the side slope,then the algae could be separated as soon as they were removed from the canal or the side slope.The results show that this equipment has the advantages of steady performance,safe and reliable operation,and good effects of the algae separation and highly mechanized.This equipment can save a lot of manpower,material resources and financial resources for environmental maintenance of the Mid⁃Route of South⁃to⁃North Water Diversion Project.
作者
王文
苗淳洋
李昊
吴林峰
WANG Wen;MIAO Chunyang;LI Hao;WU Linfeng(School of Mechanical Engineering,North China University of Water Resources and Hydroelectric Power,Zhengzhou 450045,China)
出处
《人民黄河》
CAS
北大核心
2020年第7期83-85,共3页
Yellow River
基金
河南省重点科技攻关项目(152102210110)
水利部公益性行业科研专项(200701047,201201074)。
关键词
藻水分离
筛网
南水北调中线工程
algae separation
screen
Mid⁃Route of South⁃to⁃North Water Diversion Project
