DRI apparent density and its strength

Abstract

The cold crushing strength (CCS) of directly reduced iron (DRI) with its apparent density was correlated. Two different types of DRI were tested which included the iron ore pellets reduced in the bed of carbonaceous reductants and iron ore reduced by carbon mixed in the pellets. The iron ore pellets were reduced at various temperatures (1000 to 1250°C) and sintered for various times (0-25 min). The results show that the cold crushing strength pellet was found to increase with its density.