FINEX (steelmaking process)

The Finex process is a further development of the Corex DRI process. It comes from without the necessary preparation for the classic blast furnace process in sintering and pelletizing plants. Instead, the fine ore is dried in a fluidized bed dryer. Then it comes in a multistage fluidized-bed reactor, where it is reduced by a reducing gas to Direct Reduced Iron (DRI ). The DRI is then compacted into Hot Iron Compacted (HRI ), and then introduced into a gasifier, where it is melted into pig iron. The time required for the melting and metallurgical reactions thermal energy is generated through the gasification of coal with oxygen; The resulting reducing gas used in the fluidized bed to reduce the ore. At the end of the process, pig iron and slag are tapped as in a blast furnace. In addition, the coat Finex process of gas with a high calorific value, which can be used for the electric energy production and as fuel gas. Through the direct use of coal and coke fines environmentally unfriendly and the sintering of fine ores can be saved.