Sponge iron (DRI, HBI) briquette making and the briquetting machine
WEBMar 16, 2020 · Hot DRI (HBI) HBI means briquettes made out of sponge iron/DRI produced in gas based direct reduction processes at elevated temperature by the appliion of external pressure in a more or less close mould. Hot DRI in the form of pellets, lumps, fines at a temperature of 650850 deg C is passed through hot .