Studies on the production of high basicity Sinters from the beneficiated Bolani iron ore fines, for the Durgapur Steel Plant

Sintering characteristics of jig concentrates produced from washed ore fines from Bolani Iron ore mine, for the production of high basicity self-fluxing sinters as well as sinters incorporating varying amounts of burnt lime, fines from the iron ore supp1ied by the Minerals & Metal Trading Corporation and iron powders have been determined. Effect of mixed firing on sintering has also been studied. Sinters of high basicity ratio upto 4.0-4.5 could be produced from the jig concentrate. Use of fresh burnt lime appreciably increased the sintering rate. Minerals & Metal Trading Corporation fines iron powders could be successfully incorporated in the sinter mix to yield good sinters. A few tests employing mixed sinter firing indicated that the introduction of fuel gas during sintering could minimise coke consumption by about 20%.