An investigation into hydrodynamics of a hydrocyclone with an additional double-jet injector

Results of the measurement of flow rate characteristics and of air column size in a hydrocyclone equipped with a special nozzle used for additional injection of water into the apparatus for the purpose of controlling parameters of hydraulic classification are presented. It was found that additional injection of water considerably alters the hydrodynamic situation in the apparatus. Dependence of changes in the flow rate of water through overflow and underflow nozzles on a direction of injection and flow rate of injected water was established. Explanations for mechanisms of the effect of radially and tangentially directed injection on characteristics of particle size classification are proposed.