Iron Production Ore lime coke Waste gas Hot

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Iron Production Ore, lime, coke Waste gas Hot air Slag out Molten iron out

Iron Production Ore, lime, coke Waste gas Hot air Slag out Molten iron out

Price of Iron and Steel Export prices (c&f) US$/t 800 700 600 500 400

Price of Iron and Steel Export prices (c&f) US$/t 800 700 600 500 400 300 200 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 HRC 2004 2005 2006 2007 Low carbon wire rod

Ironmaking in the Blast Furnace Plant Bell Less Top Sinter Coke Gas Cleaning Hot

Ironmaking in the Blast Furnace Plant Bell Less Top Sinter Coke Gas Cleaning Hot Blast Stoves Stock House Gasholder Scrubber Combustion Air Slag, Hot Metal Blower Combustion Gas Enrichment Gas

Materials Hematite Fe 2 O 3 Limonite Fe 2 O 3. x. H 2

Materials Hematite Fe 2 O 3 Limonite Fe 2 O 3. x. H 2 O Magnetite Fe 3 O 4 Iron Ore Fe content : 20 - 70% Si. O 2 S Flux Coke Siderite Fe. CO 3 Al 2 O 3 Ca. O Mg. O - unwanted, less than 0, 15% Lime, dolomite Ca. Mg. CO 3 , Ca. O Metallurgical coke P, As

Preparing processes Ore Coal COKE OVEN PLANT SINTER PLANT Gas Coke production - high-quality

Preparing processes Ore Coal COKE OVEN PLANT SINTER PLANT Gas Coke production - high-quality coal - without oxygen - 900 – 1150°C - 12 – 24 hn Sintering

Preparing processes Hot Blast Stoves Combustion Air Blower Combustion Gas Preparation of hot air

Preparing processes Hot Blast Stoves Combustion Air Blower Combustion Gas Preparation of hot air - fire-clay lattices is heated up to 1200°C - cold air is introduced and heated up to 600 -1100°C

Blast Furnace Top Gas Mains Top Bins Throat Armour Above Burden Probe Temperature Probe

Blast Furnace Top Gas Mains Top Bins Throat Armour Above Burden Probe Temperature Probe Refractory Lining Bustle Main Tuyeres Hearth Refractories Sub Burden Probe

Main reactions in blast furnace

Main reactions in blast furnace

Bilance výroby Koks 0, 35 - 0, 6 t Vápenec 0, 4 t Ruda

Bilance výroby Koks 0, 35 - 0, 6 t Vápenec 0, 4 t Ruda (50%Fe) ~2 t Vysoká pec 3. 5 t plynu 1 t surového železa

Products Chemical composition Pig Iron Fe C Si Mn P S 90 -95% 3,

Products Chemical composition Pig Iron Fe C Si Mn P S 90 -95% 3, 0 -4, 3% 0, 5 -3, 0% 0, 05 -2% do 0, 1%

Products Pig Iron is being casted to: ingot TORPEDO LADLE

Products Pig Iron is being casted to: ingot TORPEDO LADLE

Products Chemical composition Si. O 2 Ca. O Al 2 O 3 Mg. O,

Products Chemical composition Si. O 2 Ca. O Al 2 O 3 Mg. O, Mn. O, Fe. O, Ca. S, Mn. S, P 2 O 5, Ba. S, atd. 26 -40% 36 -48% 10 -20% negligible Slags - bazic (Ca. O + Mg. O)/Si. O 2 = 1, 0 – 1, 5

Products Chemical composition CO 2 CO H 2 CH 4 N 2 8 -14%

Products Chemical composition CO 2 CO H 2 CH 4 N 2 8 -14% 23 -32% 1 -4% 0, 2 -0, 4% 55 -60% Stock gas - fly ash ( 3 - 30 g/m 3) - 3800 - 4000 m 3 gas per 1 t of coke - fuel value 3700 – 4200 k. J/m 3