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

摘要

steelmaking facility the present invention relates to a steelmaking facility (1) and to an uninterrupted or at least cyclic steelmaking method in said facility (1), where in the case of uninterrupted steelmaking by minus the first three of the following steps and, in the case of cyclic steel fabrication, all five steps will be used: the load materials are melted continuously or at least cyclically in an electric arc furnace (10); cargo materials such as shredded scrap iron pieces (71) in particular, shredded in a shredding system (40) for shredding discarded iron and / or steel scrap (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 means of conduction (50, 51 ...); - a portion of the liquid steel is discharged uninterruptedly or cyclically from the steel bath of the electric arc furnace (10); - of the thermal energy included in the hot process exhaust (top 20 of the oven) of the electric arc oven (10), the electrical energy is, through the generation of energy (30, 31, 32), generated uninterruptedly or at least during a fusion cycle; a shredding system (40) designed for the electric arc furnace (10) for shredding discarded iron and / or steel scrap (scrap 70) is energized uninterruptedly or at least during a cycle of the melting process by the electrical energy generated from the exhaust (top 20 of the oven). the present steel production facility (1), which sets new standards in terms of total energy balance with respect to productivity and energy savings, continues the trend of recent years consistently.