Experiment Research Of The Water And Sand Hydraulic Power Separation Mechanism In The Shuttle-conical Tube

The turbid flow isolation device—shuttle conical tube (referred to as the shuttle conical tube) is anew separation of the two-phase flow of water and sediment patented technology. The technology has ahigh separation efficiency of water and sediment, the low water consumption rate, no external power andchemical characteristics. In order to explore the dynamic hydraulic shuttle conical tube separationmechanism of water and sediment, and further optimize its structure type, to provide a theoretical basis forits promotion and application. In this paper, a method of combining experimental research and theoreticalanalysis shuttle conical tube internal phase flow field of water and sediment and concentration fieldcharacteristics, separation mechanism of the two-phase flow of water and sediment, the quantitativerelationship between the structural parameters of sediment movement speed shuttle conical tube, andsediment trajectory.The test contains two phase flow test of water and sediment, sediment concentration distribution in themacro test water and sediment two-phase flow phenomena shooting. That the application of state-of-the-artparticle image velocimetry technique (PIV) measurements under different conditions shuttle conical tubeand two-phase flow of water and sediment in the ordinary device field, reveal different concentrations ofsandy muddy water under hydrostatic and hydrodynamic conditions, processing water, sand two phase ofmovement law within the shuttle cone pipe; Different positions within the shuttle conical tube havearrangement of sampling points, the test about sandy concentration as the water and moving waterconditions in different moments of each sampling point,revealing the shuttle cone tube within the sedimentconcentration distribution; An application of the phenomenon of macroscopic flow the shuttle cone tubetwo-phase flow of water and sediment under the hydrostatic and hydrodynamic conditions by a camerashooting, so as to gain a mixture of water and sediment movement rule generalization Figure.The theoretical study mainly includes derivation of the equation of sediment movement traces inshuttle taper pipe and the equations derivation of the quantitative relationship between sediment movementspeed and shuttle cone tube structure parameters when considering sediment particle size and concentrationof muddy water sandy. The sediment movement traces equation reveal sediment trajectory within the shuttle conical tube; But the calculation results tell us the equation based on the derivation of quantitativerelations the ordinary device within the sediment for the separation of water and sediment requires2.67times that the shuttle conical tube required time, and increases with the muddy water concentration, that is,the ratio of the time required increases. The more numbers of cone circles, the faster separating sediment,but it is not an unlimited increasing. It shows that there is an optimal combination of cone circle numbersand the separation time.It is proved by the experimental and theoretical research that, two-phase flow Water-SedimentSeparation mechanism by Shuttle-Conical Tube is proved through the macroscopic flow phenomena from amixture of water and sediment, a two-phase flow of water and sediment characteristics, sedimentconcentration distribution characteristic and other else angles, to provide a basis for guiding optimizationfor the shuttle conical tube structure design and the operated conditions.