The article describes solutions aimed at improving the efficiency of dust collection systems with vortex inertial devices on the opposite swirling flows. The proposed design solutions are designed for the production of various building materials.

Keywords: vortex inertial dust collector with counter-swirling flows (VZP), suction from the bunker, mixed-flow flows

Data on disperse composition of the dust which is formed in the course of drying of a semi-finished product of a ceramic brick in the dryer drum are provided. The data necessary for the choice of effective systems of cleaning of emissions at this stage of production are also obtained

Keywords: production of a ceramic brick, drying of a semi-finished product, microscopic analysis, fractional structure, bulk density, corners of a natural slope