Study On Resistance Along The Process In Long Distance Slurry Pipeline Transportation

Slurry Pipeline pressure gradient is one of the key issues in the slurry pipeline transportation technology. This paper combind theoretical analysis and experimental research method in different concentrations, flow velocity of slurry pipeline and transportation flow pattern. Established a model of resistance characteristics and motion mechanism, and its experimental verification through better usability.This paper,firstly, on the basis of the general concept of solid-liquid two-phase flow study, researched the solid particles and liquid fluid kinematics and dynamics were in the pipeline, analysised the relative movement of slurry and particles, established the basic parameters model of slurry pipeline transportation. Meanwhile, inquiring the flow characteristics of two-phase flow in the pipeline, analyzes the concentration of solid-liquid flow velocity distribution and the distribution of the particles suspended in the fluid. As a basis for further research work. For determination of friction losses in slurry pipeline transportation,this paper basis on the error of existing model at high concentrations and high flow rate operating region, adding solids concentration distribution parameters, thereby resistance along the way to create a new project more in line with the required technical computing model.Basis for a new model of resistance along the way in these studies were presented above, this paper test validation methods, the iron ore slurry loop experiments, the test data obtained by the correlation analysis and comparison the results showed that the concentration distribution of resistance along the way based on predicted results agree well with the experimental data.