Creating steel from low-grade iron ore requires a long process of mining, crushing, separating. The process of mining low-grade iron ore requires massive resources. Heavy industrial mining equipment, expansive mines, and a skilled labor pool are all required.
The iron ore processing flowsheet is consists of two processes:Dry Processing and Wet Processing. The primary beneficiation plant consists of only a jaw crusher and from there the material is transferred to the secondary plant via conveyor belt method. The main objective of the primary beneficiation plant is the crushing of the ROM from the mines while the main objective of the secondary beneficiation plant is screening, crushing and washing.
Iron ore processing depend mainly on the type of ROM ore feed and optimum product. Dry screening into lumps and fines is practised for high quality flaky ore and blue dust, because, if wet treatment is used, a substantial part of good quality material is rejected in the form of slimes. The other plants use wet screening are being used to produce better and stable quality lumps of iron ore . Various techniques and methods generally being used in iron ore processing flowsheet are schematically shown in the figures below.