About HBI

About HBI

Direct Reduced Iron (DRI)

  • The product of DR Plant, HBI, is increasingly used as a substitute of scrap, Pig Iron, DRI and other such ferrous raw materials.

Uses of HBI

  • Hot Briquetted Iron (HBI) is a premium steelmaking raw material that contains more than 90% total iron (Fe) in a nearly pure form that is used in 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 2.6 t/m3, and the very low content of undesirable chemical elements such as Cu, Ni, Cr, Mo, Sn, and S.
  • The high specific density results in a metallic structure that resists breakage
  • HBI is also resistant to degradation due to the effects of weathering. No change in the chemical analysis.Only minimal loss of metallization even after long time storage.
  • HBI is free flowing in bulk materials handling equipment that facilitates its shipping, storage and feeding from bins.
  • Minimum risk of overheating during storage and transport. Makes the transportation much safer compared to cold DRI.
  • High Thermal and Electrical conductivity
  • Low reactivity with fresh and salt water.

HDRI

Jindal Shadeed Iron & Steel is the First Midrex plant to have a direct gravity of HDRI to Electric arc furnace. Hot DRI is tapped at 700*c from the shaft furnace to storage bin and to the electric arc furnace at 650*c . Major advantage of Using HDRI is reduction in power consumption & Electrode in Electric Arc Furnace.

Chemical Characteristics

Fe.Total (%) 90  Min
Fe.Metallic (%) 84.5 Min
Carbon (%) 1.2-1.5
Total Gangue (%) 5.5 Max
Sulfur (%) 0.005 Max
Phosphorius (%) 0.07 Max

Physical Characteristics

Apparent  Density (gm/cc) 4.7 gm/cc  Min
Bulk Density (t/m3) 2.4-2.7 t/m3
Under Size(Below 6.3mm) (%) 5 Max
Moisture (%) 1 Max
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