#### Pumping system design challenges for highdensity iron ore .

Pilbara iron ores, as part of the design of tailings pipeline systems. The following table summarizes the solids characterization of some of these samples. Table 2 Iron ore tailings solids characterisation Sample No. Ore Type Solids SG Top Size (mm) d90 particle size (µm) +75 µm fraction 45 µm fraction 1 Mixed* 125 19% 70%