21 MAYIS 2018
Models For EAF Energy Efficiency
The EAF process is the subject of continuous cost and process improvements and energy models help to benchmark a particular EAF process by accounting for variations in production parameters, such as deviations in raw materials quality and process parameters such as metal yield, oxygen consumption and power-off times. In this study the energy model from S. Köhle is reviewed. By Marcus Kirschen*, Karl-Michael Zettl*, Thomas Echterhof** and Herbert Pfeifer**

THE EAF process is characterised by its flexibility in terms of production volume and raw materials. With recent market
developments, the requirement to produce high-quality steels from lower-quality scrap, direct reduced iron (DRI), hot briquetted iron (HBI), hot metal (HM) and varying quality ferrous scrap blends at minimum conversion costs has increased. Specific electrical energy demand and electrode graphite consumption represent the most important contribution to conversion costs. Maximising yield from ferrous raw materials, oxygen, carbon, and alloys as well as minimising energy costs are top priority. At modern high productivity levels, even small process improvements generate
considerable cost savings..... (devamı için tıklayınız)