“…Until recently, the hydrocyclone has been successfully and widely used in mineral industry [17], coal industry [18,19], chemical industry [20], environmental engineering [21], petroleum industry [22], pulp and paper industry [23], food industry [24], biological industry [25], agriculture [26], etc. Although the separation efficiencies, for materials with various different conditions, are significantly different, the separation performances of hydrocyclones in a number of specific industries are extremely outstanding.…”