《活性砂过滤器工作原理.ppt》由会员分享，可在线阅读，更多相关《活性砂过滤器工作原理.ppt（11页珍藏版）》请在三一办公上搜索。
1、活性砂过滤器工作原理,过滤物料,过滤的机理,Transport to sand particle移动到砂粒,Attachment to sand particle吸附到砂粒后,Molecular diffusion分子扩散,Sedimentation沉淀,Chance contact偶然接触,Straining变形,Surface forces表面张力,传统反洗式砂滤,WORKING PRINCIPLE OF THE ASTRASAND FILTERASTRASAND活性砂滤的工作原理Water Flow水路,The water is transported into the filter进水
2、输入活性砂滤系统,And enters the filterbed via the supply pipe and the distributors通过输水管和分配器进入砂层,Water flows upwards through the filterbed and filtrate space水上流进入滤床和过滤空间,Water leaves the filter at the overflow weir通过出水堰板离开砂滤系统,进水,滤后出水,Water Flow水路,feed,filtrate,有效滤床厚度：2m;上流速度：15m/h;=有效过滤时间：8min,Sand bed is m
3、oving downward砂床向下移动,and washed并被清洗,Dirty Sand is lifted in the airlift肮脏砂在提砂管中气提,sand falls back on top of the filter bed通过洗砂器回落到滤床,WORKING PRINCIPLE OF THE ASTRASAND FILTERASTRASAND活性砂滤的工作原理Sand Flow砂流,Real time:4-6 hrs真实循环洗砂时间：46小时,Sand Flow砂路,airlift principle气提提砂原理,滤后水,水流通过洗砂器,液位高差,The washer water flow洗砂器-水路,滤后水,Sand falls through washer滤砂通过洗砂器回落,Dirt taken away with washwater脏物通过清洗水被移除,The washer sand flow洗砂器-砂路,
