Authors: C. Twigge-Molecey and I. Gordon
Abstract
Although an improvement over the traditional shaft furnace, the Midrex shaft furnace design still allows non uniform temperature and flow fields to form in the cross-section of the furnace. By making modifications to the cooling and reducing gas inlet and
outlet devices, both simulations and lndustruals trials showed a significant Improvement in temperatuer uniformaity, gas flow behaviour, and overall flow product quality.
This translated into a reduction of 7-9% in natural gas consumption, a throughput increase of 13-17%, and an improvement in the reduction ratio of 6--8%, when Implemented in furnaces an electrometal/urgtcal plant Starly Oskoi, Russia.
