Drying and further quarry sand preparation for the dry building mixes production

The results of calculations and tests of a drying unit,which include a drying and cooling drum, cyclones, fans, belt conveyors, a receiving hopper, a burner device, and a control system are presented. The drying drum drive new design and the conditions of the drying and cooling drums joint operation are considered. The dust emission at the fine sand drying for dry building mixes is determined. Solutions for further operation improvement of an equipment set for sand drying and preparation are proposed.