Single versus two-stage classification
In all cyclones there is a bypass of fine material to the underflow. The fine particles behave like water molecules and escape with the water that exits the cyclone underflow stream.
Because of this imperfect separation, two cyclones in series produce a significantly higher classification efficiency than a single cyclone.
The Cavex® DeCyclone® is a double classification unit, working in a single stage, without intermediate pumping.
The DeCyclone® has proven to be extremely efficient and the classification efficiency is reflected in the capability for generating very low by-pass of fines in the underflow while reducing the misplacement of coarse particles to the overflow.