Abstract: By use of integration experiments of vertical-component density flow water-sediment separation device in still water,this paper analyses the relationships of the number of separation device,the sediment density and the silt sediment settling rate.In the same density,the experiments show that the sediment settling rate became faster with the increase of the number of the integration separation device;the density of cloudy water also influenced the sediment settling rate,namely,the sediment settling rate beca...