Tenova has started up two new CONSTEEL® operations in South Korea. The facilities are part of Dongbu Steel’s new 2.5 million tons/year hot-mill complex located in Asan Bay. Each CONSTEEL operation is comprised of a charging and preheating section added to a 160-ton electric-arc furnace. The charging section consists of two conveyors in which scrap, pig iron and HBI are continuously fed to the EAF. The preheating section consists of four refractory-lined and two water-cooled hoods, which preheats the scrap by recovering the heat contained in the fumes and by combusting the related CO to obtain CO2.
Thanks to the installation, Dongbu Steel can now achieve several environmental advantages compared to a traditional top-charged furnace, such as lower CO2 emission, reduction of dust to dispose and lower noise level.