You can track particle using Polyflow using the module called Polystat.
More information can be found here:
There are several examples about the use of this module in the example manual:
Example 50: The Rectangular Cavity
Example 51: Coextrusion of Polymers in a Square Channel
Example 52: Flat Die
Example 46: Periodic Flow Through a Kenics Mixer
Example 37: Mixer 2-D
Example 65: Adaptive Meshing for Moving Parts; Mixer 2-D
Example 91: Dispersion
Example 116: Distributive Mixing Analysis in the Mixer GK7N
I would focus on example 46 as it is like your application.
In case you do not know, here is the link to find and use the Polyflow Example manual:
https://support.ansys.com/KnowledgeResources/Solutions?solutionIdentifier=sol2064053&productName=ANSYS+Polyflow&productFamily=Fluid%20Dynamics