Vortex finder for a cyclonic separator

A vortex finder for a cyclonic separator, the vortex finder comprising:

• a plurality of stationary vanes having a round convex front end around which incoming air is guided into the vortex finder, wherein:
• where the incoming air separates from the plurality of stationary vanes inside of the vortex finder, a cross-section of the plurality of stationary vanes has only one sharp edge,
• a first side of each of the plurality of stationary vanes facing the incoming air is provided with two concave sides that converge to form a protrusion,
• the two concave sides and the protrusion are provided at the first side of each of the plurality of stationary vanes facing the incoming air,
• the protrusion has a concave side following a shape of a neighboring vane;
• and
• the stationary vanes are in a shape of an airfoil, each stationary vane having a tip extending toward a center of the vortex finder.