IRON ORE SINTER FEED (FSF)
Product Description:
Iron ore sinter is a semi-fused and solidified agglomerate of iron ore fines, fluxes (like limestone and dolomite), and coke. It is produced by heating these raw materials in a sintering plant, where partial melting fuses them together into a porous mass.
Main Application:
- Used as a feedstock in blast furnaces to produce pig iron.
- Enhances permeability and productivity in the blast furnace compared to raw fines.
- Improves thermal efficiency and reduces fuel consumption in steel plants.
Appearance:
Colour: Dark gray to reddish-brown
Form: Porous, rough-surfaced lumps or nodules
Size: 5–50 mm in diameter
Texture: Crusty, irregular; resembles clinker or lava rock
Molecular Composition: Fe₂O₃, Fe₃O₄, CaO, SiO₂, MgO, Al₂O₃
Molecular Weight: Varies by iron oxide type
- Fe₂O₃ (Hematite): 159.69 g/mol Fe₃O₄ (Magnetite): 231.54 g/mol
- Fe₃O₄ (Magnetite): 231.54 g/mol
| Physical Properties: | |
|---|---|
|
Apparent Density |
~2.8–3.3 g/cm³ |
|
Bulk Density |
~1.8–2.2 t/m³ |
|
Granulometry (Particle Size) |
5–50 mm (mostly 10–30 mm) |
|
Specific Gravity |
~3.0–3.4 |
| Specifications | |
|---|---|
|
Fe content |
~56–63% |
|
Basicity (CaO/SiO₂) |
1.8–2.2 |
|
Size |
5–50 mm (ideal for blast furnace use) |
|
Phosphorus (P) |
≤ 0.06% |
|
Sulphur (S) |
≤ 0.03% |
|
Moisture |
< 3% |
Visual Note: You can often see partially fused fine particles with small voids or cavities — this enhances airflow in blast furnaces.