Beyond the Special
BLAST FURNACE GRADE LAM COKE
Used mainly in Blast furnaces as a reduction agent to reduce Iron ore in different grades of steel products.
Standard size of LAM Coke for use in Blast Furnace are:
a. 25 to 50 mm
b. 25 to 80 mm
c. 30 to 90 mm
d. 40 to 100 mm
Size: 20-50MM – 90%
Undersize – 5%
Oversize – 5%
Ash (DB) – 12.50%
V.M. (DB) – 1.50%
Total Moisture (ARB) – 5%
Mean Size (in MM) – 30 – 32
Sulphur (DB) – 0.65%
Phosphorous (DB) – 0.055%
Size: 25-80 / 30-90 / 40-100 – 90%
Undersize – 5%
Oversize – 5%
Ash (DB) – 12.50%
V.M. (DB) – 1.50%
Total Moisture (ARB) – 5%
Mean Size (in MM) – 48 to 52
Sulphur (DB) – 0.65%
Phosphorous (DB) – 0.055%
CSR (DB) – 64-65
CRI (DB) – 24-25%
M10 – 6-7
M40 – 86-87
Nut Coke Ferro Alloys Grade LAM Coke
Used mainly in Alloy industries as a reduction agent. Depending on the size of the Furnace, Bengal Energy Limited with its in-house screening facility caters to its customer’s needs as per the size of LAM Coke required.
Standard size of LAM coke for use in Ferro Alloys producing units are:
a. 4 to 12 mm
b. 5 to 15 mm
c. 6 to 20 mm
d. 6 to 25 mm
e. 10 to 30 mm
Size: 10-30 mm – 90%
Undersize – 5%
Oversize – 5%
Fix Carbon (DB) – 84%
Ash (DB) – 14%
V.M. (DB) – 2%
Total Moisture (ARB) – 8%
Sulphur (DB) – 0.65%
Phosphorous (DB) – 0.055%
Size: 6-20 mm – 90%
Undersize – 5%
Oversize – 5%
Fix Carbon (DB) – 80%
Ash (DB) – 16-17%
V.M. (DB) – 3-4%
Total Moisture (ARB) – 8%
Sulphur (DB) – 0.65%
Phosphorous (DB) – 0.055%
Coke-Fines Coke-Breeze
Used mainly in Sinter plants, Cement Industries.
Standard size of Coke-fines used are:
a. 0 to 6 mm
b. 0 to 10 mm
Size: 0-6 mm – 95%
Oversize – 5%
Minus 1 mm – 45-50%
Fix Carbon (DB) – 70%
V.M. (DB) – 6%
Ash (DB) –24%
Total Moisture (ARB) – 10%
Sulphur (DB) – 0.7 – 0.9%
LUMPY COKE
LUMPY Coke is also used in Foundries, Smelting units and Casting industries as a Fuel to maintain temperature required to melt Cast Iron. Depending on the size of the casting unit, Bengal Energy Limited with its in-house screening facility caters to its customer’s needs as per the size of LAM Coke required.
Standard size of LUMPY Coke for use in such casting Units are:
a. 60 to 100 mm
b. 65 to 80 mm
c. 80 to 100 mm
d. 100 to 150 mm
e. 150 to 200 mm
f. 200 to 250 mm
g. 250 mm & above
Size: LUMPY – 90%
Undersize – 5%
Oversize – 5%
Fix Carbon (DB) – 86-87%
Ash (DB) – 11-12%
V.M. (DB) – 1-2%
Total Moisture (ARB) – 3-5%
Sulphur (DB) – 0.65%
Phosphorous (DB) – 0.040%
IRON-ORE Pellets
Iron- Ore Pellets is significantly used in Steel Making through DRI Route and at some steel plants through the BF Route
Fe – 62.50 (+/-0.5)
SiO2 – 4.90 max
Al203 – 4.20 max
CCS <200
Range: 180 to 220
Phos – 0.07 max
Sulphur – 0.01 max
Abrasion Index (AI) – 3.00 min
Mn – 0.30 max
Tumble Index (TI) – 93.00 min
Porosity – 24.50
Moisture – 2.00 max
Size: 5-18 mm- 95.00 max -5, +18 mm 5.00 max