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    Research on rapid sand cast of complex archetypal hull based on SL
    基于SL模型的复杂壳体快速铸造的研究
    STUDY ON THE STRAINING ACTION OF THE SAND BED OF RAPID SAND FILTERS IN REMOVAL OF SUSPENDED MATERIAL FROM WATER
    快滤池滤层对水中悬游物去除作用的研究
    BACKWASHING THEORY AND CONTRALLING ON THE PRACTICAL BACKWASHING FLOW RATE IN THE RAPID SAND FILTERS
    滤池反冲洗理论和实际反冲洗强度的控制
    OPTIMUM RATE OF SAND EXPANSION IN THE RAPID SAND FILTER DURING BACK -WASHING
    滤池冲洗最佳膨胀率的探讨
    Research on Optimization of Operating Parameters for Rapid Sand Filter with Air-water Backwashing
    快滤池气水反冲洗最佳运行参数研究
    The New Development of the Mold Material for Rapid Sand Casting
    快速砂型铸造用模具材料的新进展
    Reformation of the Backwashing System of Rapid Sand Filter
    普通快滤池反冲洗系统的改造
    Experiement was carried out for common rapid sand filter with air-water backwashing, evaluation made by parameters as: rate of dirty removal, tusbidity of discharged washing water, initial head loss of filtration, rate of washing water consumption gave the optimized operating parameters as Following: air washing strength 13.0~15.0L/s·m 2 . Water washing strength 4.2~ 4.7 L/s·m 2 , duration for simultaneous air-water backwashing 4~5min.
    本文就国内目前应用较为普遍的快滤池实施气水冲洗进行了试验 ,以冲洗去污率、排水浊度、初滤水头损失、冲洗耗水率等多项评价指标进行评价 ,得出普快滤池气水同时冲洗的最佳运行参数 :气冲强度 13.0~ 15 .0L/s·m2 、水冲强度 4.2~4.7L/s·m2 、气水同时冲洗历时 4~ 5min。
 

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