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1. 4/18/20204:15PM
1
SEMINAR TOPIC ON
STEEL PLANT
PRESENTED BY:-
MR.MD.RAZA ANSARI
ASST.PROF. MECHANICAL ENGG.
TANUSHREE CHAUDHURY REG.NO. 1101224146

2. CONTENTS
 INTRODUCTION
 COKE OVEN (CO)
 SINTER PLANT (SP)
 BLAST FURNACE (BF)
 STEEL MELTING SHOP -1 (SMS1)
 STEEL MELTING SHOP -2 (SMS2)
 CONTINUOUS CASTING SHOP (CCS)
 SLABBING MILL (SM)
 COLD ROLLING MILL (CRM)
4/18/20204:15PM
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3. RAW MATERIALS COMING FROM MINES

4. Wagon Tippler – Tippling a wagon

5. ORE HANDLING PLANT(RMHP)
Functions:
 Receive different raw materials from various mines through wagons
and their unloading & stacking with the help of tipplers & stackers
 Blend raw material by making layers in beds & cross section-wise
cutting beds by re-claimer
 Keep buffer stock to take care of irregularities and supply raw
materials to different Units as per their requirements

6. COKE OVEN BATTERY

7. COKE OVENS (CO)
8 Batteries of 5 meter height, 69 Ovens each
The process of coke making consists of
destructive distillation of coal in absence of
air. The phenomenon is called high
temperature (above 12000c -13000c
carbonisation of coal
Volatile matters are driven out leaving behind
the residue called COKE
By-Product Plant:
- Gas Condensate Section
- Ammonium Sulphate Plant
- Benzol Recovery Plant
- Tar Distillation Plant
- Sulphuric Acid Plant

8. Material Flow Diagram : Coal & Coke
Coking Coal
From
Various Source
Wagons Coal Handling Plant
Coke Sorting Plant Coke
Battery
( 8 Nos.)
Blast Furnace
Coke
+ 25 -80 mm
Coke
Breeze
-15 mm
Blast Furnace
Coke Oven
Gas
By Product
Plant
Sinter Plant

9. A VIEW OF SINTER BELT

10. SINTERING PLANT (SP)
a) 3 Sinter Machines: Capacity 6.25 million tonnes per
annum
b) Sintering is the process where incipient fusion takes place
by combustion of Coke within moving bed of loosely
packed fines of mainly Iron ore, Coke & Flux so as to
agglomerate into a compact porous mass called Sinter
c) 75-80% Sinter is being used in the burden of BF
d) Area of each Siter belt is 252 sq.m.
e) Productivity of Sintering Band : 1.2 T/M2/hr

11. A VIEW OF BLAST FURNACE

12. A CLOSER VIEW OF BLAST FURNACE

13. BLAST FURNACE (BF)
 The iron oxide of ore and sinter is reduced to iron with
the help of carbon monoxide & Coke
 Functions of coke in BF are manifold. It provides strong
porous bed to burden and supplies the heat load. Part of
the heat load is supplied by the hot air blast
 1 Furnaces of 2000 cubic meter useful volume and
2640T/day capacity
 All furnaces have Bell-less Top charging System for
continuous charging & better distribution of charge
 Capacity of B F 4.585 MT of Hot Metal per annum
 Hot Metal Temperature 1460-14800C
 BF Productivity: 1.4 T/m3/Day

14. MATERIAL FLOW DIAGRAM FOR BLAST FURNACE
Stove of
BF
Charging
Section
of
Blast
Furnace
Pig Casting
M/C
Mixer of
SMS 1
Blast Furnace
Hot Metal
Iron Ore
Lime Stone
Mn Ore
Sinter
Coke
Hot air
Slag
Quartzite

15. HOT METAL BEING CHARGED INTO THE CONVERTER

16. STEEL MELTING SHOP (SMS)
 SMS-I: 5 Converters each of 100/130T capacity, 2 Mixers each of 1300 T
capacity (Rated Capacity 2.5 MT/Yr)
 SMS-II: 2 Converters each of 300 T capacity, 2 Mixers each of 2500 T
capacity (Rated Capacity 2.25 MT/Yr)
 Oxygen of high purity(99.9 %) is blown into the converter from the top
through water cooled lance so as to remove the impurity of hot metal through
oxidation
 Impurities of Si, C & P are oxidised and Forms slag with lime
 Killed, Semi-killed and Rimming steels are made
 SMS-II has got suppresed consumption system
 Lining life :
SMS-I = 800 – 1000 heats
SMS-II = 2000 – 2500 heats

17. CONCAST SLAB COMING OUT OF CASTER

18. CONTINUOUS CASTING SHOP (CCS)
 Two Twin strand curvilinear casters with capacity to
produce 2.16 MT of Slabs
 Steel Refining Unit (SRU) with LF/LRS for
treatment of steel before casting
 On-line slab cutting
 Slab size : Thickness 200, 225 & 250 mm
Width 950-1850 mm
Length 9-10.5 mtr.
 MgO lined Tundish of 50 T capacity
 Tundish Capacity = 50 T

19. SLABBING MILL (SM)
a) 12 groups of Soaking pits with each group having 4 pits ; total
48 pits wherein ingot are heated to a temperature above 13000C
b) On line hot & cold scarfing M/c for surface scale/defect
removal
c) One 1250 mm Roll dia 2-high Reversible Universal Mill to
produce slabs of thickness 150-300 mm, width 950-1850 mm
and length 2.5 – 10.5 mtr.
d)4MT Capacity (Rolling Rate 600-800T/Hr)
e)Main Sections
A)Ingot Storage Yard b) Soaking Pit
C) Slab Storage Yard

20. INGOT ROLLING

21. STRIP COMING OUT OF FINISHING STANDS

23. COLD ROLLING MILLS (CRM)
 Cold rolling is done to produce thinner gauge strip of smooth finish
with better mechanical properties than those obtained by Hot
Rolling
 Uses : Automobile Bodies, Steel Furniture, Drum & Barrels,
bending and shaping applications.
 Capacity: 1.66 MT of CR saleable
 CRM I: H2So4 Pickling Line, 4-Stand Tandem Mill (2-4.5mm thick
into 0.63-2mm thick) Annealing Furnaces, SPM-I & SPM-II,
Shearing Line I & II, Slitting Line and Shipping-I
 Besides Continuous Annealing furnace103 Annealing Furnaces and
230 Bases are available in three areas. Annealing is done at 680-
7200C in inert atmosphere (95% N2+5%H2) with the help of mixed
Gas of 1550-1600 CV

24. GALVANIZED CORRUGATION SHEETS

25. THANK YOU