Hot Briquetted Iron (HBI) is a premium steelmaking raw material that contains 91% to 94% total iron (Fe) in a nearly pure form that is useful in the iron blast furnace (BF), the basic oxygen steelmaking converter (BOF or BOS), and the electric arc furnace (EAF).
It has advantages over steel scrap due to its high bulk density of about 180 lb/ft3 or 2.88 tonnes/m3, and the very low content of undesirable chemical elements such as Cu, Ni, Cr, Mo, Sn, and S. The high specific density of >5.0 g/cc results in a metallic structure that resists breakage and the HBI is also very resistant to degradation due to the effects of weathering. HBI is free flowing in bulk materials handling equipment that facilitates its shipping, storage and feeding from bins.
Gangue is the term for the oxide minerals that remain in the HBI and that are removed in the iron or steelmaking process, i.e. CaO, Al2O3, SiO2,
MgO.
Link:
the introduction and uses of HBI |
(Compiled by Steelhome.cn) |
