Classification evaluation of water injected hydrocyclone

The performance of hydrocyclone with a truncated cone and water injection f acility at its apex has been studied. It was found that the flow rate of wa ter in the overflow of the cyclone is higher when smaller cone is used. How ever on injecting water at the apex, the overflow water rate is minimum whe n smallest cone is used implying localised effect of injection of water in the displacement of fines. Experiments using silica as feed, along with wat er injection showed that the weight percent of particles less than a partic ular size in the under flow is reduced this size being a function of inlet pressure and truncated cone diameter. (C) 1999 Elsevier Science Ltd. All ri ghts reserved.