Blast furnace plant - Technical Data

Furnace A

Furnace B

Furnace data

Year built

1973

1981

Last re-lining

1998

2000

Hearth diameter

10.3 m

11.0 m

Effective capacity

2,449 m³

2,824 m³

Charging equipment

Double bell with moveable armour

Rotating chute

Top pressure

2.5 bar

2.8 bar

Blast temperature

1,270 °C

1,350 °C

Tuyeres

30

30

Tapping holes

2

2

Capacity

2.5 million t/a

2.7 million t/a

Blast stoves

Number

3

3

Combustion chamber

lying outside

lying outside

Dust removal

Charge gas extraction

Ring slot washer

Radial flow washer

Casting hall dust removal

2 electrostatic filters

2 electrostatic filters

Slag removal

Granulation

Granulation

Process control

4 workstations (redundant)
16 process stations
8 operational workplaces
12 PLC

3 servers (redundant)
22 process stations
16 operational workplaces
2 large screens