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 FILTER ASTRASAND活性砂滤的工作原理 Water Flow 水路,The water is transported into th
2、e filter进水输入活性砂滤系统,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：8
3、min,Sand bed is moving 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 FILTER ASTRASAND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,
