Pressure Characteristics of Hydrocyclones with Gas Injection

Focus on a solid-liquid hydrocyclone, effects of both geometric parameters and operating parameters on pressure characteristics are studied. Results of pressure when with free gas injection are obtained, and at last the energy dissipation is analyzed. The results show that with gas injection, the pressure drop values of both overflow and underflow increase simultaneously. Pressure drop ratio ( PDR) decreases with the rise of flowrate when without gas, but keeps nearly constant when with gas injection. With the rise of swirl number, pressure drop increases, while PDR declines. With the rise of gas-liquid ratio, pressure drop increases basically, while PDR remains nearly constant when with gas injection