Process for Production of Highly Metallised Directly Reduced Iron Cylinders (DRIC) from Lean Grade Raw Materials

The Directly Reduced Iron Cylinders (DRIC) produced by this process can be used as a feed/substitute of scarp for melting in Induction Furnace (IF), Basic Oxygen Furnace (BOF) and Electric Arc Furnace (EAF) for production of steel

The process utilizes ~100% waste/lean grade raw materials to produce value-added products. This invention is useful for converting steel plant and mining waste such as iron ore fines/slime  and  lean grade coking or non-coking coal (>32% ash) into a highly metallized (metallization >96%) low Sulphur (0.008%S) DRI Cylinders suitable as a feed for induction furnace, electric arc furnace and basic oxygen furnace steelmaking

The techno-economic of the process have been arrived and found to be favorable (i.e., 2/3rd of the conventional DRI process cost) than the conventional DRI making processes. The electricity consumption during the melting of DRIC in Induction Furnace has been arrived and found to be less (i.e., 25-30%) than the conventional pellet melting.