FORMATION OF THE VERTICAL SLITS IN THE LO WER PART OF A SINTERING BEDAND THEIR EFFECT ON SINTERING

The conditions for stable formation of vertical slits in the lower par t of the sintering bed and their effect on the sintering were investig ated, The effect of the slits was evaluated experimentally with a test pot, feeding simulator and commercial plant. The total pressure drop was decreased and the permeability in the bed was improved by the form ation of vertical slits. The gas flow rate in the slits was calculated at 1.8 times as large as that of a conventional bed. Moisture condens ation, which decreases the void fraction in the sintering bed, is redu ced by this increased gas flow rate. To form slits, plates were insert ed vertically in the lower part of the raw material on the pallet of s intering machine. The ratio of the height of the plates to the distanc e between plates should be under 0.5 for stable feeding without stagna tion of the raw material.