1. AN OVERVIEW OF BOKARO STEEL PLANT
INDUSTRIAL TRAINING REPORT PRESENTATION
BY:-
TARANG BANSAL
ELECTRICAL
08EBKEE058

2. CONTENTS Raw Materials and Materials Handling Plant Introduction
Objective
Departments Visited :
Raw Materials and Materials Handling Plant
Sintering Plant
Coke Ovens and By Product Plant
Blast Furnace
Slabbing Mill
Continuous Casting Shop
Steel Melting shopII
Hot strip Mill
Cold Rolling Mill
Result
Conclusion

3. Introduction
BOKARO SAIL is the fourth largest integrated Steel plant (PUBLIC SECTOR) in India.
At present it houses five blast furnaces with total capacity to produce 4.5 MT of liquid steel.
It manufactures Steel which is an alloy of iron and carbon where the carbon content is 0.2 to 2.5% which depends upon the grade of steel.
Melting temperature of iron = 1536 degrees celsius.

4. Outer View

5. OBJECTIVE
To interact and learn from the experience of trained engineers,supervisors and other organization employees.
To differentiate between real working scenario and uncertainities and the text book knowledge and to analyse the gap between the two.
To get an insight into the various processes and the sequence of steps in the manufacture of steel and other products.
To understand and appreciate the extent of coordination required between various departments for the success of the organisation.

6. Raw Materials & Material Handling Plant (RMHP)
Functions
4 Raw Materials
Suppliers
Process
18 Beds
Wagon Tiplers
Stackers
Reclaimers

7. Coke Oven & BPP Battery of ovens.
Coal is converted into coke in anaerobic conditions at temperature-1250 degrees celsius.
Cars involved for production :-
Pusher car.
Guiding car.
Quenching car.
Charging car.

8. Sinter Plant Fed into sinter furnace on moving pallets
Agglomerated mass of iron ore, flux
Increases efficiency, reducibility,
reduces coke rate
Fed into sinter furnace on moving pallets
Crushed cooled
+5mm crushed sinter sent to BF & rest reused

9. BLAST FURNACE

10. Steel melting shops-sms1 & sms2
Steel melting- process of removal of impurities like carbon and silicon.
Oxygen blowing process.
It receives hot metals from blast furnace.
Output of sms1 is in ingot form.
Output of sms2 is in slab form.
From sms2 it goes to continuous casting shop.
Molten metal to CCS

11. SMS II

12. Continuous Casting Shop
SRU : refining, composition, temperature
Argon purging
The main function of Continuous Casting Shop is to produce steel slabs directly from the molten steel coming from SMS-II and sending them to Hot Strip Mill (HSM) for hot rolling.

13. Slabbing Mill SMS 1 – Ingot route Ingot rolling Same function as CCS
Shearing
Piling

14. HOT STRIP MILL
Hot rolling- plastic deformation of metal above crystallization temperature by squeezing it between pair of roller.
The capacity of HSM=4 MT.
HSM has 2000 mm wide strip
Mill.

15. Cold Rolling Mill Annealing
Grains elongated, permanent strain, hard & brittle
Heated then soaked, makes it soft
Skin Pass Mill
Unrolled
Rolled
Surface hardening
Finishing
SHEARING
SLITTING
Pickling Line
H2SO4
HCl
Tandem Mill
5 stands(0.15mm)
Hydraulic automation gauge control
Computerized mill control
Temp. Control
Emulsion spray

16. Electrical equipments in Sail
SLIP RING MOTORS FOR A MILL FAN
DCC AS INSULATION IN STATORS

17. Electrical repair shop 1 & 2
Ac Arc Welding : Only used in the transformers.
Carbon Brushes : Repaired in the
broker arm.
Autotransformers: Used as
the current regulators.
Motors:
Squirrel cage motors.
Synchronous motors.
Slip ring motors.
SYNCHRONOUS MOTOR

18. Thank You