steelmaking facility, uninterrupted or at least cyclical steel fabrication method in one installation and method of use

摘要

Steelmaking plant The present invention relates to a steelmaking plant (1) and a method of manufacturing uninterrupted or at least cyclic steel in said plant (1), wherein in the case of steelmaking uninterrupted by least the first three of the following steps and, in the case of cyclic steel fabrication, all five steps will be used: the filler materials are continuously or at least cyclically melted in an electric arc furnace (10); loading materials such as shredded scrap metal pieces (71) in particular, shredded in a shredding system (40) to shred the scrap iron and / or scrap steel (scrap 70). direct reduced iron (dri) and / or hot briquette iron (hbi) are fed uninterruptedly or at least continuously during a cycle of the melting process in the electric arc furnace (10) by conduction (50, 51 ...); - a portion of the liquid steel is discharged uninterruptedly or cyclically from the electric arc furnace steel bath (10); - of the thermal energy included in the hot exhaust process (top 20 of the oven) of the electric arc furnace (10), electric energy is generated by the generation of energy (30, 31, 32) uninterruptedly or at least during one cycle of the fusion process; a shredding system (40) assigned to the electric arc furnace (10) for shredding the scrap iron and / or scrap steel (scrap 70) is energized uninterruptedly or at least during one cycle of the fusion process by the electrical energy generated from the exhaust of the process (top 20 of the oven). The present steelmaking facility (1), which sets new standards in terms of total energy balance in terms of productivity and energy savings, has consistently continued the trend of recent years.