Recycling Axial-Flow Cyclones Demister also known as recycling cyclones demister are a stationary turbine in the tube spins the flow.
Downstream of the turbine, the liquid film is removed through slits, along with some “secondary” purge gas. The liquid drops to the bottom of a box chamber enclosing the cyclone demister and flows out a drain tube.
The main portion of the gas flows straight out of the cyclone. The purge gas is educed back into the center of the cyclone through the stationary turbine.
A low-pressure region exists because of the spinning flow, similar to that in a tornado. In this way, the secondary purging gas is cleaned again, and there is no need for a mesh pad.