In order to understand the flow characteristics of high concentration slurry, a mathematical model of filling slurry pipeline transportation is established by combining the fluid dynamics theory and the characteristics of the filling slurry under the assumption including fluid particle, uniformity and continuity in the case of no segregation. According to the result of a certain mine industrial test, a numerical simulation on the resistance of slurry pipeline transportation was made by the Fluent software. Through the comparison of simulation and measured results, the error was found to be around 5%. At the same time, the relationship between the slurry flow rate and loss of resistance along the way was obtained. The drift velocity range of slurry pipeline was calculated to be around 1.82~2.23 m/s by the above relationship and mathematical model. The numerical simulation results could provide a basis for the filling system piping design. Besides, they could be used to guide the actual mine production.

pipeline transportation  /  loss of resistance along the way  /  filling slurry  /  Fluent  /  critical flow velocity