Jun 21, 2018· In the direct reduced iron process, the iron ores are reduced directly to sponge iron by gaseous reducing agents! Electro steel process. In the electric steel process, the sponge iron obtained from the direct reduced iron process is used for crude steel making. In general, scrap is also added to this process as well as pig iron from the blast furnace process.
Jan 05, 2012· Direct reduction : Direct reduction involves the production of solid iron from iron ores and a reducing agent . The solid product is called DRI and is mainly applied as feedstock in EAF. The direct reduction process has been commercialized since the 1970s and a variety of processes have been developed.
Mar 16, 2013· Direct reduced iron is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non coking coal or natural gas. Processes which produce DRI by reduction of iron ore below the melting point of the iron are normally known as the direct reduction processes.
NIPPON STEEL ENGINEERING CO., LTD. Basic Concept or Summary. S 16. u A direct reduced iron production plant is a shaft reduction furnace to produce DRI with large metal iron content by directly reducing iron ore with reducing gases. u While the produced DRI is mainly used as the raw material of electric steelmaking, it is also used as
During the last four decades, a new route of ironmaking has rapidly developed for direct reduction of iron ore to metallic iron by using noncoking coal/natural gas.
The MIDREX process is a shaft type direct reduction process where iron ore pellets, lump iron ore or a combination are reduced in a Vertical Shaft to metallic iron by means of a reduction gas 9 . Sign in to download full size image Figure 1.1.39. Process flow sheet of the MIDREX process 9 .
Direct reduction processes can be divided roughly into two categories: gas based, and coal based. In both cases, the objective of the process is to drive off the oxygen contained in various forms of iron ore , in order to convert the ore to metallic iron, without melting it ). The direct reduction process is comparatively energy efficient. Steelmade using DRI requires sig
Jan 25, 2021· Regardless of the steelmaking route, there is a form of direct reduced iron for every application. DRI is a premium ore based metallic raw material made by removing chemically bound oxygen from iron oxide pellets and lump ores without melting. DRI is high in iron content and low in copper and other undesirable metals, tramp elements,