Experimental investigation of processes in acoustic cyclone separator

• Separation efficiency of acoustic cyclone separator was experimentally investigated.
• Efficiency of separator increased from 87.2% to 97.5% in presence of acoustic field.
• The greatest efficiency is achieved when air flow is affected by acoustic field of 8 kHz frequency.
• Particles get additional movements which cause their collisions and aggregation.

This paper presents air flow velocity profiles obtained in conventional and acoustic cyclone separators. It is shown that vortex air flow is created in acoustical cyclone separator in presence of secondary countercurrent air flow. It is obtained that in acoustic cyclone separator air pressure pulses occur at frequency of 8 kHz and pressure amplitude reaches a value of 170 dB. Separation efficiency of acoustic cyclone separator was established experimentally.

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