Kongskilde AIR WASH 50 Manuel D'utilisation page 4

How The Air Wash Works
The top mounted blower provides the required vacuum
to convey the material from grinder/and or bin to the
cyclone. (2) The material enters the cyclone tangen-
tially. The heavy materials are carried to the outside
of the cyclone by centrifugal force. At the same time
gravity is pulling the material down creating a spiraling
vortex. After about 2 to 3 revolutions most of the mate-
rial reaches the discharge airlock.
The lighter material doesn't have enough momentum
to follow the outside contours of the cyclone and has a
tendency to remain airborn in the center of the cyclone.
With any cyclone an inner vortex is created traveling in
the upward direction.
4
The patent pending diffuser (4) allows air to be injected
at a variable rate at the bottom of the cyclone. By
injecting air 360 degrees around the diffuser (4) the
upward traveling vortex can be enhanced both in
diameter and speed. The more air introduced at the
diffuser the faster and wider the inner vortex.
Since the fine and light material are lingering in the
center area of the cyclone the induced air from the
difuser assists the fines to take an upward path
through the cyclone basket and to the blower.