On Hydrodynamics of Dry Granulation of LD/BOF Slag Using Spinning Disc Atomizer: Effect of Change in Disc Rotation Direction with Air Blast on Liquid Flow Characteristics

The iron and steel industry produces a waste product, slag. Dry Spinning Disc Granulation (DSDG) process has been experimentally tried, widely, for the granulation of Blast Furnace (BF) slag, with the recovery of heat from the high temperature slag. To study this phenomenon, the fabrication of an experimental setup, of the scale of laboratory level, has been done in the institute of the authors. Various experiments were performed on the setup. Stage-wise modifications were performed on the experimental setup, on the basis of the limitations found in the previous stages of the experimental setup. In this study, the experimental setup with all its systems has been elaborated. Then, after the setup is acquainted, a study has been performed to find the effect of change in disc rotation direction with air blast on liquid flow characteristics. Finally, the results have been discussed and the conclusions drawn.