Abstract: Today, particle segregation in tailing dumps occurs naturally and is not controlled. This fact makes difficult to deliniate areas where it is cost-effective and expedient to process mill tailings. Control over segregation process during the technogenic deposit formation solves a plenty of problems during the tailing dump reprocessing. Namely, it gives a clear view of the valuable component content in a particular processed site, identifies areas that are promising for use in various industries, reduces their downblending and significantly increases the mining operation safety. During this study, a device and a basic layout of the plant intended to manage particle segregation during the technogenic deposit formation were worked out. Laboratory studies of the polydisperse mixture segregation have shown that application of this plant resulted in increasing separation performance for polydisperse mixtures during their stacking in different positions (horizontal and vertical) and decreasing the temperature effect on segregation. The dependences were revealed for the distribution of axial and tangential components of the flow speed over the pipe cross-section as well as the effect of solid swirling on the change of the flow structure and separation efficiency.