EUROPEAN STEEL TECHNOLOGY AND APPLICATION DAYS 2017 - ESTAD 2017

The efficiency of the iron and steel production becomes increasingly a very important factor for any producer in the world. Looking at the overall costs for steel production, the source and quality of iron ore is the most important factor, which influences the overall efficiency downstream to the steel making process. By improving the iron ore quality the entire processing chain benefits because the separation of the impurities accounts for a significant portion of the processing costs in the blast furnace or the melt shop, where the impurities are separated in form of slag, which requires thermal respectively electric energy. In order to accommodate with these requirements Primetals Technologies intensified recently the activities in the field of beneficiation and developed in parallel a single calculation model, which considers the complete chain of processing plants from the incoming raw materials to the liquid steel with the accuracy of a specific mass balance for any of the individual plants. In addition efforts have been made to investigate upgrading of dumped tailings to produce an extra concentrate in order to increase the overall recovery of the valuable iron minerals. With the holistic evaluation of the iron and steel making process Primetals Technologies is now in the position to offer all available industrial scale proven plant types from run of mine and even from tailings to liquid steel including beneficiation as single units and also to calculate the complete processing route in one model in order to achieve highest efficiency and lowest processing costs of an integrated iron and steel works.