On Hydrodynamics of Dry Granulation of LD/BOF Slag Using Spinning Disc Atomizer: Choice of Experimental Methodology

The iron and steel industry produces a waste product called slag. The 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 paper, the methodology, that was adopted to perform the experiments in literature has been studied. Further, the methodology chosen for the current experimental setup has been discussed with each system, its subsystem, and the respective components. Finally, the chosen methodology for the current experimental setup has been compared with the methodologies of the experimental setups stated in the literature. The use of the current experiment methodology has been satisfactorily justified with reference to the literature surveyed. The Air Flow System (AFS) is a novel system that has been used in the current experimental setup of Spinning Disc Atomization (SDA).