EXPANSION OF INTEGRATED STEEL PLANT FROM 0.3 MTPA TO...

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EXPANSION OF INTEGRATED STEEL PLANT FROM 0.3 MTPA TO 0.5 MTPA, 4.7 TO 30 MW WASTE HEAT RECOVERY POWER PLANT & PROPOSED 0.3 MTPA COKE OVEN PLANT AT C-1, MIDC, MIDC ESTATE, LONAND, TEHSIL KHANDALA, DIST. SATARA PROJECT PROPONENT M/S SONA ALLOYS PRIVATE LIMITED (SAPL), C-1, MIDC, MIDC ESTATE, LONAND, TEHSIL KHANDALA, DIST. SATARA PRE FEASIBILITY REPORT M/S SONA ALLOYS PRIVATE LIMITED (SAPL),

Transcript of EXPANSION OF INTEGRATED STEEL PLANT FROM 0.3 MTPA TO...

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PFR of Expansion of Integrated Steel Plant from 0.3 MTPA To 0.5 MTPA, 4.7 To 30 MW Waste Heat Recovery Power Plant & Proposed 0.3 MTPA Coke Oven Plant

1

EXPANSION OF INTEGRATED STEEL PLANT

FROM 0.3 MTPA TO 0.5 MTPA, 4.7 TO 30 MW

WASTE HEAT RECOVERY POWER PLANT

&

PROPOSED 0.3 MTPA COKE OVEN PLANT

AT

C-1, MIDC, MIDC ESTATE, LONAND, TEHSIL

KHANDALA, DIST. SATARA

PROJECT PROPONENT

M/S SONA ALLOYS PRIVATE LIMITED (SAPL),

C-1, MIDC, MIDC ESTATE, LONAND, TEHSIL

KHANDALA, DIST. SATARA

PRE FEASIBILITY REPORT

M/S SONA ALLOYS PRIVATE LIMITED (SAPL),

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PFR of Expansion of Integrated Steel Plant from 0.3 MTPA To 0.5 MTPA, 4.7 To 30 MW Waste Heat Recovery Power Plant & Proposed 0.3 MTPA Coke Oven Plant

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Contents

1.0 Introduction ....................................................................................................................................... 3

1.1 Nature, Size of the Project .................................................................................................................. 3

1.2 Project Proponent ................................................................................................................................ 4

1.3 Project Location .................................................................................................................................. 5

2.0 Proposed Expansion Project .............................................................................................................. 9

2.1 Plant Capacity and Products ............................................................................................................... 9

2.2 Manufacturing Process: .................................................................................................................... 10

2.3.1 Integrated Steel Plant ................................................................................................................. 10

2.3.2 Coke Oven Plant and Waste heat Recovery Power Plant .......................................................... 26

2.3.3 Captive Power Plant ................................................................................................................... 29

2.3 Basic Requirement of the project ...................................................................................................... 31

2.3.1 Raw Material .............................................................................................................................. 31

2.3.2 Water Requirement .................................................................................................................... 33

2.3.3 Land Requirement ...................................................................................................................... 34

2.3.4 Power Requirement .................................................................................................................... 35

2.3.5 Man Power Requirement ........................................................................................................... 36

3.0 Environmental Pollution Mitigation & Control Measures .............................................................. 38

3.1 Air Pollution Mitigation Measures ................................................................................................... 38

3.2 Water Pollution Mitigation Measures ............................................................................................... 41

3.3 Work Zone Pollution Mitigation Measures ...................................................................................... 41

3.4 Solid Waste Disposal ........................................................................................................................ 42

4.0 Environmental Setting .......................................................................................................................... 43

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1.0 Introduction

Sona Alloys Private Limited (SAPL) is a flagship company of SONA GROUP promoted by Shri

Sonaram Jain. The group is having diversified interests in Steel Manufacturing, Ship Breaking,

Healthcare, Horticulture and Ferrous & Non Ferrous Trading. SAPL has Registered Office in

Ahmadabad, Gujarat, INDIA and Agent / Dealer / Distribution network across North, Central,

Western and Southern India

The company was incorporated under the Companies Act 1956 (No 1 of 1956) on 04/01/2007 at

Ahmedabad. The factory is set up C-1, MIDC Area, Lonand, Satara- District, Maharashtra State.

SAPL’s Steel Works is situated at Lonand in District Satara (90 km south east of Pune city), in

the state of Maharashtra, INDIA. 137 acres land for the plant has been allotted by Maharashtra

Industrial Development Corporation. SAPL’s Steel Plant’s location near Pune and Mumbai has a

strategic advantage of having a ready market for steel products in Automobile, Auto Ancillary,

Engineering and Construction Sector Industry.

Currently SAPL is producing mainly Foundry Grade and Basic Grade Pig Iron through Blast

Furnace (size 320 m3) route with installed capacity of 0.334 MTPA. The Blast Furnace is

equipped with Bell Less Top Charging System (BLT), Pulverized Coal Injection (PCI) and

Carbon Refractory for hearth.

SAPL has also installed a 33 m2 Sinter Plant which helps in consuming waste fines from plant

and also improving energy efficiency, high productivity and reducing environmental pollution.

Captive Power Plant of 4.7 MW capacity based on waste heat recovery from BF Gas has also

been installed. Such initiative by SAPL shows its commitment for better and efficient usage of

energy coupled with conscious and continuous effort for Environmental care. A 60 TPD

Capacity Cryogenic type Oxygen Plant is installed to meet the present requirement of Oxygen

for MBF.

Environment Clearance for existing Steel plant obtained from MOEF, New Delhi ( reference EC

no. J-11011/827/2007-IA-II(I) dated 05.02.2008)

1.1 Nature, Size of the Project

It is integrated metallurgical industry. SAPL is operating 0.3 MTPA of integrated steel plant.

Mainly operational on ores for the production iron and steel. Iron ore, Limestone, lime, dolomite,

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coke, manganese ore, quarts, coal etc. these are the major raw materials require in project

operation. Now SAPL has decided to enhance the production capacity from 0.3 MTPA to 0.5

MTPA along with proposed 0.3 MTPA of coke oven plant which is the raw material will be used

in the steel plant. In addition to that SAPL proposed to install 30 MW waste heat recovery power

plant (non recovery type) which will operate on waste heat from the coke oven plant and which

is environmentally friendly. Most of the power plants operate on fossil fuel which leads to Green

House Effect’s; in the other hand proposed power plant will operate on waste heat from coke

oven plant.

1.2 Project Proponent

M/s. Sona Alloys Private Limited (SAPL) is a flagship company of SONA GROUP promoted by

Shri Sonaram Jain. The group is having diversified interests in Steel Manufacturing, Ship

Breaking, Healthcare, Horticulture and Ferrous & Non Ferrous Trading.

SAPL has Registered Office in Ahmadabad, Gujarat, INDIA and Agent / Dealer / Distribution

network across North, Central, Western and Southern India.

Besides Steel Plant at Lonand in District Satara (Maharashtra), the other GROUP COMPANIES

are;

- Shree Krishna Shipbreaking Industries, Bhavnagar

- Bhikkamal Chhotelal

- Ganpati Cold Warehouses Pvt. Ltd.

- Amjay Medi-Max India Pvt. Ltd.

Details of Board of Directors

Mr. Ratan Kumar Jain, Director, More than 42 years of experience in ship breaking, steel

and health care industry and To be in-charge of overall management, Finance and

Purchase .

Mr. Ankush Jain Director, More than 9 years of experience in steel and allied industries

To be responsible for Marketing, Planning and HR

The directors have long experience in business operations. In addition to strategic decision

making, the key functions like general management, finance, purchase and marketing are

looked after by the directors.

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Promoters have experience in the field of manufacturing of steel, ship breaking, supply of

scrap, ferrous and non-ferrous metal trading.

In addition to strategic decision making, the key functions like general management,

finance, purchase and marketing are looked after by the directors.

1.3 Project Location

The industry located at Plot C1 of Lonand MIDC, Dist Satara, and Maharashtra. The plant site

90 km south east of Pune city. The nearest city is Satara which is about 43km away from the

proposed site in South- West direction. The site is 100 meter away from SH-70 (Khandala- Loni

Road). Access road is well developed. Location map is presented in Figure No.1

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Figure 1. Location Map

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Figure 2. Google Map 10 km radius

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Figure 3. Topo sheet 10 km radius

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2.0 Proposed Expansion Project

The Proposed 0.5 MTPA Expansion Project envisages the following up-gradations and additions

of production units:

Modification of existing 320 m3 MBF to increase its size to 420 m

3 to enhance the

production capacity for basic grade Pig Iron to 1470 tpd.

Installation of one (1) additional 33 m2 Sinter Plant to meet the requirement for increased

production of Basic Grade Pig Iron as a result of proposed modification of existing MBF

to increase its capacity. The total production of sinter from the two sinter plants (1

existing + 1 new) shall be 2840 t.

Installing of a 0.3 mtpa Iron Oxide Ore Pellet Plant along with a 0.5 mtpa Ore

Beneficiation Plant.

Expansion of Steel Melt Shop by installing another 45 t Electric Arc Furnace (Alloy Steel

Melt Shop) along with a matching 30 t Induction Furnace (IF), Ladle Refining Furnace

(LRF), Vacuum Degasser (VD) and a Continuous Casting Machine for billet productions.

Installation of an additional long product Rolling Mill of 0.3 mtpa capacity for the

production of Rebar and Alloy Steel Bars (Alloy Rolling Mill).

Installation of a 50,000 tpa capacity Forging Unit for the production of forged products

for Automobile, Railways and General Engineering applications.

SAPL’s Metallurgical coke requirement is either purchased from open domestic market or

imported. Looking at the prospect of generating intragroup business, SAPL intends to set up a

0.3 MMTPA coke oven facility adopting non-recovery technology and a 30 MW waste heat

based captive power plant.

2.1 Plant Capacity and Products

Capacities of Various Production Units of Steel Plant

Production unit Product Annual production (tons)

Existing New

33m2 Sinter Plant-1 Sinter ore 1420

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33m2 Sinter Plant-2 Sinter ore - 1420

Blast Furnace Hot metal 336,000 514,500

Steel Melt Shop Billets 312,500 625,000

Rolling Mill-1 Bars 300,000

Rolling Mill-2 Bars & sections - 300,000

Iron Ore Beneficiation Plant Beneficiated iron ore - 500,000

Iron Oxide Pellet Plant Ore pellets - 300,000

Forging Plant Forged parts - 50,000

Product:

Sr.

no

Products

Quantity

Existing

(MT/Annum)

Proposed

(MT/Annum

)

Total

(MT/Annum)

1 Pig Iron/Hot metal (HM) 337000 163000 500000 tons

HM

2 Sinter Plant 478900 478900 957800

3 Oxygen plant 1800 4000 5800 nm3/hr

4 Steel melt shop -Billets 315750 150000 465750

5

Rolling Mill – Wirerod

mill/TMT/ Alloy steel

bars str sections 240000 150000 390000

6 Forging unit 0 50000 50000

7 Coke oven plant 0 300000 300000

8

Waste heat recovery

power plant 4.7 25.3 30 MW

2.2 Manufacturing Process:

2.3.1 Integrated Steel Plant

The flow diagram of Manufacturing Process is shown in Figure. 4 below & Block diagram in

figure 5.

Receipt, Storage & Handling of Raw Materials (Sinter Plant & BF Area)

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The raw materials comprising iron ore fines, iron ore lumps, limestone & dolomite, quartz,

manganese ore, coke, coke fines required in Sinter Plant & Blast Furnace for iron making; are

received by road and stored in the respective stockpile area earmarked in the yard in open

manner. However, coal and lime is stored in a covered shed. Storage of about 7 days is

maintained.

Reclaiming and Transport of Raw Materials to consuming areas in Sinter Plants & Blast

Furnace

SINTER PLANT

Iron ore fines, mill scale, quartz reclaimed by a payloader from stockyard is fed to a hopper

located over the yard conveyor and transported to the proportioning bins at sinter plant through a

series of conveyors. Flux materials viz. limestone and dolomite will be fed to another hopper one

at a time by a payloader. The flux materials will be crushed and screened to -3mm size and

stored in the respective proportioning bins in the sinter plant building. Coke breeze after crushing

to -3mm size will be stored in the proportioning bins earmarked for the purpose. Electromagnetic

tramp iron separators, dust extraction system and belt scales are provided in the system as per

requirement. Schematic flow diagram for Raw Material is shown in Figure below

Sintering Process

In the sinter plant, the various raw materials are discharged in the desired proportion from the

proportioning bins and mixed with right quantity of water in a primary mixer followed by further

mixing in a secondary mixer. The green mix is then fed to the circular sinter machine over a

hearth layer of return sinter. The material then passes through an ignition furnace fired by BF gas

to ignite the coke in the mix. The material gets sintered by sucking of air from top through the

material layer to burn the coke and raise the temperature for agglomeration of the material.

The hot sintered material is broken to small pieces by a single roll crusher & screened in a

vibrating hot screen which discharges into an annular cooler for cooling to <100°C by blowing

air through the material. 0-5mm fraction from hot screen will be re-circulated to the sinter plant

through proportioning bins.

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The cooled material is then conveyed to the BF section. Return fines 0-5mm from BF will also

be reversed to proportioning bins. ESPs are installed both at head & tail ends to clean the air

before discharging to atmosphere.

BLAST FURNACE

The sinter from the sinter plant shall be conveyed to the sinter bins in BF stock house by a belt

conveyor. Sinter shall form 80-85% of the metallic charge.

Sized iron ore/Pellets, coke and fluxes will be delivered to the BF stock house by a conveyor

from storage yard.

Coke, sinter and ore will be screened to remove fines before charging to the blast furnace. These

fines are re-used in the process.

Smelting Process in BF

The sinter & iron ore lumps/Pellets are smelted in BF using coke and injection coal as reductant

and source of supply of heat. Hot air at 1100-1150°C enriched by 2-3%. Oxygen is supplied to

provide oxygen for combustion of coke. The air is heated in stoves working on regenerative

principle using a part of BF gas as a fuel. The hot metal and slag is tapped periodically at about 2

hours intervals. Slag is granulated by high pressure water jet and collected in a pond. The hot

metal is collected in refractory lined ladles for use in steel melt shop/ pig casting in the pig

casting shop.

BF gas is used as a fuel in preheating of blast air in stoves, ladle heating and ignition furnace of

sinter plant. The balance BF gas is used in captive power plant, reheating furnaces of rolling mill

etc.

STEEL MELTING SHOP

a) Raw Material Handling

The metallic charge in the steel melting shop shall be;

Hot Metal : ~65%

DRI : ~31%

Revert Scrap : ~4%

It will be processed in the shop through Electric Arc Furnace (EAF), Ladle

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Refining Furnace, Vacuum Degassing (only for alloy steels) and continuous

casting route to produce billets.

Hot metal shall be transported to the SMS in refractory lined ladles by special

trucks. The metal shall be charged into the EAF by EOT crane through a launder.

The DRI will be purchased and received in trucks which will discharge in ground

hopper and conveyed to day bins by a high rise conveyor. Burnt lime & dolomite

shall be received in waterproof bags and stored indoor. The bags shall be opened

& material supplied to EAF day bins by a payloader discharging to the ground

hopper feeding the high rise conveyor feeding the day bins.

b) Melting & Refining Process in EAF

After charging of scrap and hot metal, melting process starts by blowing oxygen

and supplying electrical energy by direct arcing. The continuous DRI feeding is

started after 4-5 minutes along with lime & dolomite. The melting and refining

for de-phosphorization & partial desulphurizing take place simultaneously. The

slag formed is removed continuously. On complete meltdown sampling is done.

Further oxygen blowing & power input are carried out as per sample result. The

temperature is raised to about 1620°C. The arcing & oxygen blowing is stopped

and the steel tapped in a heated refractory lined ladle. About 15-20% metal is kept

in the furnace as hot heel by quick tilt back to ensure slag free tapping through

eccentric bottom tap hole. During tapping fluxes and ferro alloys are added to suit

further treatment.

The furnace slag line refractory is inspected and repaired by gunning, if required.

The furnace is then ready for next heat.

c) Secondary Refining in Ladle Furnace

The secondary refining of steel is carried out in the ladle furnace under a reducing

basic slag for de-sulphurization. The steel is continuously kept in homogenized

conditions by stirring achieved through purging of argon gas through a porous

plug installed in ladle bottom. Heat is supplied by direct arcing under the slag

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layer. Fluxes and ferro-alloys are added as required to achieve the desired

composition. Sampling & temperature measurement is done 2-3 times to control

the process and achieve right composition and temperature for continuous casting.

Feeding of aluminium and calcium silicide is carried out by wire feed machine for

some of the grades for de-oxidation, desulphurization and inclusion control.

The Ladle Furnace also serves an important function of acting as a buffer between

EAF and Continuous Casting Machine to achieve sequence casting of several

heats together and thus helps in achieving higher yield of billets.

d) Vacuum Degassing

Most of the alloy steel grades for critical application like automobile, railways

and general engineering application require the liquid steel to be degassed under

vacuum to lower the content of harmful gases viz. hydrogen, nitrogen and

oxygen. The ladle after the ladle refining furnace processing is placed in a tank

and sealed by a cover. Argon is purged through the porous plug to stir the liquid

steel and vacuum upto 0.5 Torr applied for 15 to 20 minutes to lower the

hydrogen content to a level of less than 2 ppm and that of nitrogen to about 25-30

ppm. The alloying and addition of deoxidizers is carried out under vacuum.

After the completion of treatment, vacuum is broken and wire feeding of calcium

silicide wire is carried out for achieving further de-oxidation, reduction in

inclusion level and achieve modification in their morphology. The steel is now

ready for casting in continuous casting machine.

e) Continuous Casting of Steel

The Ladle after LF treatment or LF-VD treatment is carried by EOT Crane to the

Turret of Continuous Casting Machine. The turret is then rotated through 1800 to

bring the new ladle to casting position and take the previous empty ladle to

removing position. Molten steel is fed from the ladle into a tundish with stopper

controlled nozzles / metering nozzles to permit accurate apportioning of the steel

into the mould.

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When commencing the casting operation, the head of the Starter Bar is tightly

sealed in the mould and retained by the driven rollers of the withdrawal and

straightening machine.

From the tundish, the steel is fed into the water cooled mould. A lubricant

(casting powder) is fed to the mould during casting to obviate wetting of the

mould wall by liquid steel and reduce friction between strand & mould. A mould

oscillator imparts an oscillating motion to the mould @ 120-200 c/s.

The strand leaving the mould with only a thin shell is guided by guide rollers

installed below the mould, is further solidified by direct spraying with water.

The casting speed is such as to ensure complete solidification of strand before it

enters the withdrawal-cum-straightening rolls.

The strand i.e. billet now approach the Torch Cutting Machine, the strand is sub-

divided to desired billet length of 6-12 m.

After the starter bar has left the withdrawal machine, it is disconnected from the

billet and moved to its storage station.

The billets then run forward on a roller table to the billet handling bay and are

transferred to the Cooling Bed. These are either cooled to 4000C and lifted by

magnet cranes to storage area. There is provision for hot charging of billets

directly to Billet Reheating Furnace of the Rolling Mill.

ROLLING OF BILLETS INTO ROLLED PRODUCTS

The billets are heated to rolling temperature of 1150 to 12000C in the Walking Beam Type Billet

Reheating Furnace. The billets shall then undergo high pressure water descaling before being

rolled for five (5) passes in a mechanized 3-High Single Stand Roughing Mill.

Further rolling shall take place in a 14-Stand Continuous Mill. Defective ends of the bar shall be

cropped after 7th

and 13th

pass by Crop-Cum-Cobble Shear.

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The rolled bars 8 to 40 mm size for reinforcement application shall be quenched by high pressure

water online after final rolling to produce high strength TMT Bars. The carbon and alloy steel

bars are not subjected to this treatment.

The bars are then divided to cooling bed length, cooled onto an automatic rake type cooling bed.

The cooled bars are delivered onto the cooling bed run-out table for sub-dividing to customer

required length in cold shear provided with Measuring Gauge.

The bars are then bundled, tied, weighed and deposited on to the Bundle Bed of Bar Handling

System. These are lifted by EOT Magnet Crane for storage and despatch.

Alloy Steel bars undergo inspection by reopening the bundle for surface and internal defects,

conditioned and re-bundled for despatch.

Brief Specifications of Equipment

The brief specifications of main production equipment of the plant after implementation of the

proposed expansion project shall be as described below:-

Sinter Plants

Nos. : One (1) existing

One (1) proposed new

Annual capacity of two plants : 937,200 t

No. of working days/ year : 330

Sinter machine : Annular type with 33m2 effective

area, pitch diameter 8600mm

Sinter cooler : Low blast type, circular, 45m2

effective area, pitch diameter

1300mm, material layer thickness

800-1000mm, discharging

temperature <120°C

Hot sinter crusher : Φ1100x1860mm size single roll

Hot sinter vibrating screen : 150 t/h capacity,

1500x4500mm size,

7x33mm sieve size

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Ignition furnace : BF gas fired with provision for oil

firing, 1050°C ignition temperature

Head ESP : 210000m3/h gas capacity @80-

200°C, 50mg/Nm3 dust density at

outlet

Tail ESP : 170000m3/h gas capacity @80-

200°C, 50mg/Nm3 dust density at

outlet

The sinter plant will be complete with following facilities:-

- Flux and fuel crushing & screening section

- Proportioning & weighing system

- Mixing & nodulizing system

- Sinter machine proper with ignition furnace, sinter breaker and hot vibrating

screen

- Sinter cooler

- Waste gas system

- Plant de-dusting system

- Electrical, instrumentation controls and automation system

- Water & utility systems

- Cranes & hoists

Blast Furnace

Nos. : One (1) existing, modified to

enhance capacity

Useful volume : 420m3 (modified from existing

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320m3)

Annual capacity : 514500 t

No. of working days/ year : 350

Productivity : 3.5 t/m3/day

Sinter in burden : 80-85%

Lump ore/Pellets in burden : 15-20%

Coke ash% : <13

Dry coke rate : 450 kg/THM

PCI rate : 120-150 kg/THM

Oxygen enrichment of blast : 2-3%

Hot blast temperature : 1150°C

No. of stoves : Three (3)

The BF shop shall have following major facilities:-

- Stock house and charging system with bell-less top

- Blast furnace proper

- Cast house & associated equipment

- Hot blast stoves

- Gas cleaning system

- Slag granulation system

- Blowers

- Pig casting machine

- Ladle repair shop

- Water & utility systems

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- Electrical, instrumentation, controls and automation systems

- Cranes & hoists

Steel Melt Shop

Annual capacity of SMS : 625000 tons of continuously cast

billets

No. of effective working days/ year : 320

The major facilities in the steel melt shop will be;

- One (1) existing + one (1) new Electric Arc Furnace (EAF) each EBT type with

45t heat size & 40 MVA transformer

- One (1) existing + one (1) new Ladle Refining Furnace (LRF) each with 9 MVA

transformer

- One (1) existing Vacuum Degassing (VD) Unit

- One (1) existing 3-strand, 9/16m radius Continuous Casting Machine

- One (1) new 3-strand, 7/12m radius Continuous Casting Machine

- Ingot Casting facilities

- Scrap handling facilities including weighing

- Hot metal handling facilities including weighing

Ladle maintenance facilities

- Ladle preheaters

- Mould maintenance facilities

- Tundish maintenance, drying and preheating facility

- DRI/ Lime/ Dolomite handling facility

- Ferro-alloys & flux charging system

- Slag handling facilities

- Primary & secondary Fume Extraction System for gas cleaning

- Billet handling & storage facilities

- Electricals, controls and automation systems

- Cranes & hoists

Rolling Mill #1 (existing)

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Annual capacity : 300,000 tons

Products : Alloy Steel bars, TMT rebars

(wire rods in coils-future provision)

Reheating Furnace : Walking beam type 50 t/hr., BF gas fired,

with hot/cold charging facility

Billet size : 130x130mm & 150x150mm

Rolling Mill (proper) : It comprises:-

- A single stand Roughing Mill of 3-high

type driven by an AC slip ring AC motor.

- A 14-stand Continuous mill with

individual drives by DC motors.

- A Thermo-mechanical Treatment Line for

rebars.

- Crop-cum-cobble shears after continuous

mill stand #2 & #10

- Dividing shear with pinch roll

- A 60m long automatic rake type cooling

bed

- A 350t cold shear with measuring gauge

- Mechanized bar-bundling & tying system

- Bar inspection & despatch facilities for

alloy steel grades

Auxiliary facilities shall comprise;

- A roll & guide preparation shop

- Laboratory facility for physical testing of rolled products

- Electrical, instrumentation, controls and automation systems

- EOT Cranes

The mill has provision for future addition of rolling wire rods in coils.

Rolling Mill #2 (new)

Annual capacity : 300,000 tons

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Products : TMT rebars & structural steel sections.

Reheating Furnace : 50 t/hr. capacity, pusher type, BF gas/oil

fired/producer gas fired

Billet size : 150x150mm, 12m long

Rolling Mill (proper):-

- Type : Continuous Mill

- No. of stands & drives : Twenty (20), each individually driven by an

AC/DC variable speed motor

- Crop-cum-cobble shear : Two (2) nos., one installed after 8-stand

Roughing section and other installed after 6-

stand intermediate mill.

- TMT line : For Rebars

- Dividing shear : One (1) with Pinch Roll

- Cooling bed : Automatic rake type 72m long

- Bar handling : Mechanized

The mill shall be complete with;

- Electrical, instrumentation, controls and automation systems

- A roll & guide preparation shop

- Physical testing laboratory

- Water & other utilities facilities

- EOT Cranes

- Despatch facilities

Forge Shop

The forge shop shall have an annual capacity of 50,000 tons of open and close die

forged products. The various facilities in the shop shall comprise;

- Bar cutting band saws

- Batch type Reheating Furnaces Producer Gas/ Oil fired

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- 1200 t capacity hydraulic Forging Press with manipulators

- A 10 t pneumatic Hammer

- A 5 t belt drop Hammer

- Punching & trimming presses

- Two (2) nos. Normalizing Furnaces producer gas/ oil fired

- Shot blasting facilities

The mill shall be complete with;

- Tool room for die sinking & refurbishing

- Raw material storage facilities

- Finished material storage & despatch facilities

- Compressed air and other utilities system

- Electrical, instrumentation, controls and automation systems

- Cranes & Hoists

Ore Beneficiation & Pellet Plant

Annual capacity : 300,000 tons of pellets with

matching ore beneficiation capacity

No. of effective working days/ year : 330

The plant shall have following facilities;

- Iron ore fines open storage yard

- Covered storage shed for Limestone, Bentonite & Anthracite coal

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- Limestone & Bentonite grinding facility

- Coal crushing & grinding facility

- Ore beneficiation plant comprising wet grinding, hydrocyclones and pressure

filters to produce filter cake

- Filter cake storage shed & handling facilities

Day bins for filter cake & powdered limestone, bentonite and coal

- Mixer plant & mix storage bins

- Disc pelletizers

- Pelletizing plant with travelling grate, rotary kiln and annular cooler

- Inter-connecting conveyors

- Pellet storage yard

- Coal pulverizing & pneumatic conveying system (for fuel)

The mill shall be complete with;

- Electrical, instrumentation, controls and automation systems

- Water & other utilities facilities

- Laboratory facilities

- Cranes & Hoists

- Gas cleaning system with ESPs for main gas handling system

- Dust extraction systems with bag filters in raw material handling area

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Figure 4.Manufacturing Process

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Figure 5. Block Diagram of Manufacturing process

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2.3.2 Coke Oven Plant and Waste heat Recovery Power Plant

Manufacturing process and process equipment

The following subsections describe the manufacturing process and role of process equipment.

Below figure shows the manufacturing process and also indicates the material flows throughout

the process. It may be noted that blast furnace for steel plant is not a part of the Project but a

beneficiary, using coke, which is the primary output of the coke oven plant.

Figure 6.Schematic diagram: Manufacturing process

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Coal handling and Storage

Coal from the mines will be received and stored in underground RCC bunkers. Four such

bunkers will be provided, each having a capacity of 30 m3. Coal shall be loaded into the bunkers

by means of pay-loaders. The top of the bunkers shall have gratings with opening size of 100

mm by 100 mm, to prevent oversize coal (greater than 100 mm) from being fed into the

hammer crusher. Such oversize coal fractions shall be handpicked and processed manually.

The bunkers shall be fitted with load cells for calibrated discharge of coal. Rack and pinion

gates shall be provided at the mouth of the bunkers to stop the flow of material for carrying out

repair or maintenance work.

Conveyor belts shall transport the coal to the hammer crusher building. The conveyor belt

will travel through a penthouse fitted with a suspended electromagnet to separate out any

magnetic material that cannot be crushed. The penthouse shall be fitted with metal detectors on

either side (entry and exit) as safety devices. Any metal detection after the coal passes through

the penthouse shall halt the conveyor stream. The coal will be transported via a junction house

to the hammer crusher building. The hammer crusher building shall house two sets of

reversible hammer crushers, with rated capacity of 120 MT/hr. Hammer crushers shall reduce

the size of the coal to sizes less than 3 mm.

Crushed coal will be transported to the coal tower building via another junction house. In the

coal tower, the crushed coal will be stored in two bunkers. The conveyor leading to the coal

tower shall be fitted with water sprinklers to add moisture to the coal if required.

Coke oven

SAPL intends to install four coke oven batteries, each having 18 coke ovens. As discussed before,

the Company intends to use non-recovery/ heat recovery type coke ovens of production of

coke, because of its inherent benefits over recovery/ by-product type coke ovens.

The coke ovens shall be provided with stamping machines, coal charging and coke

pushing cars, and coke receiving and quenching cars. The coke oven refractory shall be lined

with silica bricks. The coke oven shall have a self-adjusting suction pressure controller and

a damper controller at chimney base.

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Each coke oven shall consist of carbonisation chamber, roof, bottom, main walls, coal charging

and coke discharging doors, columns, upper and lower horizontal tie rods, longitudinal tie

rods, springs and protective plates.

The coke oven door shall have two sections, a fixed upper section and

a movable lower section. The two section door will prevent soot leakage

and reduce the operative weight of the door. The door shall be mainly

made of cast iron. The circle of refractory lining will be made of high

alumina brick and the middle section will be of castable. The oven roof shall essentially be an

arch, while the oven bottom a four linked arch structure. Primary and secondary air inlets will be

provided at the roof and the bottom of the oven.

The stamping machine shall be hydraulically operated. The coal cake will be stamped in two

layers for a duration of 20 minutes. Compacted coal will be introduced into the coke oven from

the pusher side. Stamping operation ensures uniformity in the coal charge and enables use of low

grade coals.

Carbonisation of coke at 1100-1200ºC, for about 66-68 hours Coke to be quenched using cold

water Coke crushed by coke crushers to be sized and stored in the coke storage yard Cantilever

box type harging process shall be adopted. The charging

car shall transfer the stamped coal to the combustion chamber. The coal will be heated to a

temperature of 1100-1200ºC; the maximum temperature in the coal oven will be 1300ºC. The

coke shall be carbonised for about 66-68 hours.

Coal will be converted into coke in the combustion chamber and transported by the coke

receiving and quenching car. The coke shall be then quenched using cold water and shall be

ready for storage.

Coke handling

Quenched coke will be scraped by scrapers and transported by two belt conveyors to the coke

cutters. Coke will be crushed in the coke cutters and the crushed coke will be discharged onto a

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conveyor belt, which will transport the coke to the coke screening unit. There, the coke shall be

fed to a primary vibrating screen that shall classify the coke, based on particle size. Particles

greater than 25mm will be stored at any one of the two storage bunkers, each having a capacity of

100 MT.

The sized coke shall be loaded onto dumpers that shall transport it to the coke storage yard

where it is kept. From the storage yard the coke will be loaded on to a conveyor belt by means of

a vibrating feeder that shall transport it to the blast furnace.

The undersized particles (-25 mm) shall be further classified for size greater than 10 mm and

the oversized and undersized particles from the secondary screening are stored separately in 25

MT bunkers. They shall be discharged and loaded on to dumpers for further processing as per

requirement.

2.3.3 Captive Power Plant

The captive power plant is essentially a waste heat power plant that operates on the

Rankine Cycle and coverts heat energy of the combusted gases in the coke oven to

electrical energy. HSRGs convert water into steam and the steam is used to drive a turbine

which is coupled to a generator which produces captive power.

The boiler feed water system shall consist of a deaerator, feed water pumps and an economiser.

The deaerator shall separate out dissolved oxygen and other gases from the feed water. This is

done to protect the boiler walls from corrosion damage.

Feed water pumps shall be provided to pump the water to the steam drum via an economiser.

The economiser shall preheat the water by recovering the heat from the flue gases.

The water circulation system shall consist of evaporator coils and water walls. A portion of the

water that is circulated is converted to steam. The steam-water mixture shall rise up to the

steam drum where the steam is separated from the water. Dry saturated steam shall leave the

steam drum, while separated water shall be mixed with the incoming feed water for further

circulation.

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The boiler to be used shall comprise of radiation section, economiser, evaporator and

superheater and an extended water wall section.

The radiation chamber, a hollow passage for flue gas flow shall be made of water-cooled

walls. It shall absorb the radiation heat from the flue gases and cool it below the ash melting

point temperature.

Heat transfer from the gases to the circulating water will take place in the evaporator by

convection. The extended water wall section shall protect the super heater temperature

fluctuations and dust particles. The superheater section has two parts, the primary superheater

and the secondary superheater. Between the two superheaters a desuperheater shall

also be provided to control the final temperature of emanating steam. The superheater section

will heat the steam to required final temperature.

The superheated saturated steam shall drive a steam turbine. The steam turbine employed for the

purpose shall be multistage, nozzle governed, horizontal spindle, impulse type, axial flow, bladed

design, condensing type and has lagging, cladding and control system.

A condenser shall be provided that condenses the exhaust steam from the turbine to water. The

high quality feed water thus obtained shall be re circulated in the system.

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2.3 Basic Requirement of the project

2.3.1 Raw Material

Steel Plant

The main raw materials required for the plant after 0.5 mtpa expansion shall be;

Iron ore fines for Sinter production

Iron ore fines for Beneficiation Plant for Pellet production

Lump ore for Blast Furnace

Pellets for Blast Furnace

Coke for Blast Furnace

Coke fines for Sinter Plant

Anthracite coal for injection in Blast Furnace

Lime stone for Sinter Plant

Dolomite for Sinter Plant

Manganese ore for Blast Furnace

Quartz for Blast Furnace

Steel scrap for SMS

DRI for SMS

Calcined lime for SMS

Calcined dolomite for SMS

Flurosper for SMS

Ferro-alloys for SMS

Pet-coke/coke breeze for SMS

Specific consumptions and annual requirement of various raw materials along with their

source and mode of supply

Plant Unit Annual

capacity

Material Specific

consumption

(Kg/t)

Annual

requirement

(tons)

Source of

supply

Mode

of

supply

Sinter Plant 937,200 Iron ore fines 833 780688 Local

By road Limestone 40 37488 Local

Lime 45 42174 Local

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Dolomite 60 56232 Local

Coke breeze 60 56232 Local

Flue dust 21 19681 Own

generation

Mill scale 6 5623 Local

Sand/quartzite

fines

10 9372 Local

Blast Furnace 514,500 Lump ore 360 185220 Local By road

Coke 480 246960 Imported

PCI coal 120 61740 Imported

Manganese ore 10 5145 Local

Quartz 20 10290 Local

Sinter 1440 740880 Sinter

Plant

Internal

0.5 mtpa

Beneficiation

Plant

330,000

(ore

concentrate)

Ore fines 1500 500000 Local By road

Pellet Plant 300,000 Ore

concentrate

1100 330000 Local Internal

Lime stone 25 7500 Local

By road Bentonite 7 2100 Local

Anthracite coal 18 5400

Steel Melt

Shop

625,000 Hot metal 773 483125 MBF Internal

DRI 340 212500 Local By road

Revert scrap 48 30000 Own

generation

Internal

Purchased

scrap

- - Local

Calcined lime 70 43750 Local

By road Calcined

dolomite

35 21875 Local

Injection coal 20 12500 Local

Coke Oven plant

The basic raw material for coke oven plant is low grade coal which is proposed to be imported

from Australian coal mines. Raw material consumption parameters for the coke oven plant.

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Annual requirement for coal is 260,087 MT.

Raw material consumption parameters

Parameter Specification

Specific consumption of coking coal (MT/MT) 1.40

Coal requirement/ year (MT) 260,087

Type of raw material

Coal charge blend- % of weak coal in blend 40%

Bulk density of coal charge 1.0-1.1 T/ m3 (dry basis)

Size of purchased coal -80 mm

Crushing of coal, % (-3 mm) 90%

Coke Quality CSR > 68%, M25 >92% , M10 <6

2.3.2 Water Requirement

Water is mainly required for equipment cooling. In addition, it is required for process use,

drinking & sanitary purpose, firefighting and other miscellaneous use like dust suppression, BF

slag granulation & EAF slag cooling.

The plant at present has a system of supplying make-up water at a flow rate of 367m3/hr. from

VEER Dam. Raw water is stored in a reservoir of 19200m3 capacity. A dedicated reservoir of

900m3 is provided exclusively for firefighting services. A clarifier of 400m3/hr. capacity

provided to reduce the suspended solids. Clarified water is stored in a reservoir of 5900m3

capacity. A part of clarified water is further cleaned through sad filters and chlorinated for

drinking and sanitary usage. This system has a capacity of 7 m3/hr. The drinking water is stored

in a 120 m3 covered reservoir from where it is supplied to various consumer points through

pumps.

For the expansion project, it is proposed to add following facilities:-

- Raw water reservoir of 19200 m3 capacity

- A standby 400 m3 clarifier

- An additional 5900 m3 clarified water storage

- Additional pumping & distribution piping facilities

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- Extension, firefighting system piping and hydrants

Coke Oven Plant

Water consumption norms for the coke oven plant are given below

Water consumption norms;

Water Consumption: 60 m3/hr

Make up water: 4.5 m3/MT of coke

Existing water requirement: 1396 m3/day and for expansion 3600 m3/day.

2.3.3 Land Requirement

The proposed expansion will be carried out within the existing plant premises. Lonand MIDC has

allocated 137 acre of land to SAPL. Land is already developed for industrial activities. An area

of about 45 acres has been identified for locating the proposed project. The available land is

adequate to expansion and proposed activity. The break-up of Land requirement is given in

Table

Table . Break Up of Land

Sr No Tentative Area Statement C1 C1 Part % Sq. mtr. Acre

Plot Area 520872 36600 100 557472.00 137.75

1 Open Space 10 55747.20 13.78

2 Garden / Plantation /Green

belt 33 183965.76

45.46

3 Parking 0.5 2787.36 0.69

4 Internal Roads 30000.00 7.41

Balance land 284971.68 70.42

5

Existing Built up area -

Rolling Mill, Raw water

reservoir, Labour Canteen,

Staff Canteen, Sinter Plant,

BF, GCP, Power Plant,

Admin Building etc.

64110.00

15.84

6 Built-up Area to be 56486.34

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regularized - Rolling Mill

(Balance), Oxygen Plant,

VPSA,GGBFS, BF Quality

Lab, Store, MRSS,SMS

14

Balance land 164375.34 40.62

7 Proposed Coke Oven Project 60000 14.82

8 Proposed expansion of

SMS II & Rolling Mill - II. 48000.00

11.86

9 Sinter plant II 7938.73 2

10 Forging unit 16000 3.95

Net Land 32436.61 8.01

2.3.4 Power Requirement

The production unit wise specific consumption of electrical power and the estimated total power

requirement of the plant after the implementation of proposed expansion to 0.5 MTPA

production level is presented in the below table. The maximum demand is estimated as

110MVA.

S.

No.

Production unit Hourly

Producti

on Rate

Specific

Consumption

Norm

Kwh/unit

Hourly

Consumpti

on MW/hr.

1. 2 x 33m2 Sinter Plant 118 t 45 5.30

2. 420 m3 Blast Furnace 61.25 t 130 8.00

3. Steel Melting Shop (625,000 tpa):-

2x45 t EAF, each 40 MVA

2x45 t LRF, each 9 MVA

1x VD Unit

1x3 strand 9/16 m Caster

1x3 strand 7/12 m Caster

82 t 540 44.30

4. Bar Mill-1 (300,000 tpa) 50 t 110 5.50

5. Bar Mill-2 (300,000 tpa) 50 t 125 6.30

6. Forging Plant (50,000 tpa) 3.00

7. 0.5 mtpa Ore Beneficiation Plant 42 t 45 1.90

8. Pellet Plant (300,000 tpa) 38 t 45 1.70

9. Misc. services, Material handling

ventilation & air conditioning

5.00

Total 81.00

Own generation by captive 4.7 MW

Power Plant

(-)4.00

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Balance 77 MW

Considering peak loads @1.25

Estimated max. demand

110 MVA

Electrical power for the project shall be provided from the main receiving sub-station

(MRSS) via two 6.6 kV feeders. A 6.6 kV HT switch-gear board is provided to feed power to the

LT sub-station and the HT loads. The LT substation comprises of two 1600 kVA, 6.6 kV/440 V

step-down distribution transformers and one power controller to feed all LT loads as per

requirement.

2.3.5 Man Power Requirement

Steel Plant:

During construction phase of the proposed industrial activity around 500 nos. of workers will be

employed. The proposed expansion project shall generate an additional employment for 540

personnel. The manpower requirement for additional facilities is estimated as follows:-

S. No. Area Manpower

requirement

1. Second Sinter Plant 40

2. Ore Beneficiation Plant 70

3. Pellet Plant 100

4. SMS #2 100

5. Rolling Mill #2 110

6. Forge Shop 70

7. Electricals & Utility Services 30

8. Other Misc. Areas 20

TOTAL 540

Coke Oven Plant

Sr No Manager In-charge 1

1 Assistant General Manager 1

2 Shift In-charge- Mechanical 4

3 Shift In-charge- Electrical 4

4 Shift In-charge- Electrical 3

5 Engineer- Instrumentation 2

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6 Engineer- Refractory 2

7 Engineer- Planning 1

8 Operator Pusher 4

9 Operator Quality Control 4

10 Operator Stamp Machine 4

11 Distribution Control System Operations 4

12 High Tension Substation Operation 4

13 Pump-house Operations 4

14 Fitter- Mechanical 3

15 Fitter- Electrical 3

16 Fitter- Instrumentation 2

17 Refractory Maintenance 2

18 Pay Loader Operators 8

19 Conveyor System 9

20 Semi-skilled Miscellaneous operation 9

21 Archives 1

22 Personnel/Time Office 4

23 Helpers 19

24 Contract Labour 22

25 Administration 6

Total 130

Manpower captive power plant

Role Number

Workers

Skilled Workers 31

Contract Labour 26

Sub Total 57

Factory Supervision 1

Power plant In-charge 4

Boiler Operator Engineers 3

Chemists 1

Sub Total 9

Total 66

2.4 Project Cost:

The estimated capital cost for the proposed expansion integrated steel plant project is Rs. 566 Cr

& coke over and waste heat recovery power plant is Rs 37.94 Cr.

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3.0 Environmental Pollution Mitigation & Control Measures

Right from the extraction of ores to steel making through various processes involving ore

preparation, smelting, refining, casting and rolling to finished products, there is generation of

large but manageable quantities of waste products and pollutants at every stage. However, with

focused approach, the technologies, processes and equipments have been devised to profitably

utilize the waste products and bring down the pollutants to levels that are safe enough for the

personnel working in the steel plant as well as the general public and society at large.

Thus, modern steel plants are designed to provide safe and healthy environment to both the

operating personnel and the populace in the vicinity. The types of possible pollutants which need

to be tackled are

Air Pollution through discharge of waste gases containing Carbon Mono-oxide, Sulphur

Dioxide, Nitrogen oxides and Particulate Matter of flue dust, ash, iron oxide etc N

Water Pollution through discharge of water containing various chemicals, oils, grease etc.

Thermal Pollution through discharge of hot gases, steam and radiated heat to the

atmosphere.

Noise Pollution.

Land Pollution through discharge of solid wastes.

The pollution mitigation measures which would be considered as an integral part of the design of

the proposed plant facilities are outlined in the following sub-sections

3.1 Air Pollution Mitigation Measures

3.1.1 Raw Material Handling Area

Fugitive dust emissions generated from handling and transfer of the material would be

controlled by Dry Fog (DF) system, whereas dust suppression by water sprinkling would

be done at open stockyards.

All closed zone working areas such as raw materials handling zones, conveyor transfer

points, dust generation points at screens would be provided with multiple dust extraction

(DE) systems / dry fogging (DF) at all emission points to control the fugitive dust

emission.

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Each dedusting system shall have a Bag Filter, an induced draft (ID) fan installed after

the bag filter and a 30 m high chimney to exhaust the air free from particulate matter to a

level of <50 mg/Nm3.

3.1.2 Sinter Plant

In the sinter plant, emissions are mainly generated from raw material handling, wind-box

exhaust, ignition furnace, sinter discharge from hot screen and the cooler.

Two air cleaning systems are installed for each sinter plant, one for the Head End

catering to the Wind-Box Exhaust, and the other at Tail End catering to the Ignition

Furnace, Hot screen area hood and circular cooler chimney exhaust etc. Each system is

provided with an Electrostatic Precipitator to clean the air and exhaust the same through

an ID Fan to chimney. The system capacity for Head End system is 210,000 m3/hr. and

that for Tail End, it is 170,000 m3/hr.

Dedicated de-dusting systems each comprising suction hoods, bag filters, IF Fan and Chimney

are provided for;

i) Product Sinter discharge area

ii) Flux & Fuel Crushing and conveying system

3.1.3 Blast Furnace

The BF gas containing dust is passed through a cyclone type dust catcher to separate out

coarse particles. The gas is further cleaned in a bag house and its pressure raised by a

booster fan for supplying to different consuming areas. In case of emergency the gas is

exhausted through a chimney and flared with a LPG burner.

For raw material handling system from stock house to BF, Dust extraction system

comprising suction hoods at screens, conveyor transport points are provided along with

ducting, bag filter, an ID Fan and a chimney

3.1.4 Iron Ore Beneficiation Plant

This plant shall have wet beneficiation process and hence is free from air pollution generation.

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3.1.5 Pellet Plant

The induration process gas will be cooled by utilizing the heat in drying and preheating of the

green pellets and then passed through electrostatic precipitators (ESPs) to remove the particulate

matter before releasing the gases through an ID fan and stack of <50 m height. All the dust

generating areas will be covered with hoods and dust laden air will be sucked through suction

ducts and cleaned in a bag house before releasing to the atmosphere through a stack.

3.1.6 Electric Arc Furnaces

The Electric Arc Furnace will be provided with a combined Fume Extraction System (FES) for

catering to primary emission taking place during processing from the 4th

hole, secondary

emission taking place mainly during charging & tapping and emission in material handling at

conveyor transfer points. The primary gas with CO gas are fully combusted in a water cooled

combustion chamber, cooled upto 550°C in a water cooled duct and then further cooled to 300°C

in a natural trombone (hair pin type) cooler. These gases are then mixed with secondary air

(~60°C) sucked from a canopy hood installed at the shed roof of SMS building & with air from

material handling DE system duct to cool to 80-90°C. The gases are then cleaned in a bag house

and exhausted through ID Fans and a stack of 50m height. The stack shall be common for both

the EAFs.

3.1.7 Ladle Refining Furnaces

Each Ladle Furnace shall be provided with a dedicated Fume Extraction and Cleaning System

comprising suction hoods at LRF, suction hoods for material handling dust emitting zones and

conveyor transfer points, a bag filter and an ID Fan. The cleaned gases shall be led to

atmosphere through a stack of adequate height (>30 m).

3.1.8 Continuous Casting Machine

The Continuous Casting process comprising production of billets through solidification of liquid

steel through primary cooling in a water cooled copper mould and secondary cooling in open

water spray does not cause any air pollution. The steam produced in the open cooling chamber is

led to atmosphere through an ID Fan and a duct.

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3.1.9 Rolling Mill Reheating Furnace

The exhaust flue gases from the furnace are discharged to the atmosphere through the stack each

of about 50m height. The stack height is decided in accordance with guideline given by pollution

control board.

3.2 Water Pollution Mitigation Measures

The proposed plant shall be designed on the modern concept of zero discharge by adopting

measures as outlined below:

Adoption of re-circulation systems.

The blow down of indirect cooling water system shall be used as make-up in direct

cooling water system.

The blow down of direct cooling water systems containing suspended particulates and

floating oils would be clarified in the waste water treatment plant. The clarified water

would be recycled to the process.

The power plant effluent would be back wash of DM plant and boiler blow down. The

waste water generated in these units would be neutralized in the neutralization pit and the

treated water would be utilized in dust suppression.

The plant sanitary waste water including canteen effluent would be treated in a modular

type sewage treatment plant for separation of floating oil and reduction of BOD and the

treated effluent would be used for dust suppression and maintenance of plant green belt.

3.3 Work Zone Pollution Mitigation Measures

o The work zone pollution would be mostly fugitive dust, heat and noise. The fugitive dust

emission in open area would be controlled by Dust Supression and Dust Extraction

Systems described earlier.

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o Work zone thermal pollution would be abated by providing adequate thick refractory

lining in all process vessels generating heat. In addition to this, there would be provision

for forced draft cooling and ventilation of closed environment in the work zone.

o Noise arising from the machineries like crushers, vibrating screens, compressors,

blowers, fans, pumps etc. cannot be eliminated. The mitigation measures adopted for

such noise prone equipments would be done by installing these noisy equipment in a

separate building / housing so as to enhance the noise attenuation.

3.4 Solid Waste Disposal

The solid waste products in the proposed plant and their planned disposal measures are as

follows

Solid Waste Production Unit Disposal Measures

Ore Reject Tailings Ore Beneficiation Plant Dumped in Pits

Used Refractories Sinter Plant, Pellet

Plant, Steel Melt Shop,

BF Shop

Sold for use in back filling of low

lying areas, making of grog in

refractory plants.

Mill Scale Continuous Casting

Plant

Recycled in Sinter making.

Granulated Slag Blast Furnace Sold for cement making.

Slag Steel Making Road making, filling of low lying

area.

Cotton Waste etc. General Maintenance Sold to contractors for recycling

Flue Dust Air Cleaning Plants Recycled in Sinter making.

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4.0 Environmental Setting

The site is located in the rural area away from villages and other habitant. No other industries are

found in the region. Location features of the Study area are given in Table

Table- Environment Setting in 10 km radius

Sr. No Particulars Details

1. Site Address M/s. Sona Alloys Pvt. Ltd. Plot: C-1, MIDC

Lonand, Taluka: Khandala, District: Satara, State:

Maharashtra, Pin. – 415521.

2. Site Coordinates 18° 3'22.15"N, 74°10'19.66"E, Elevation

1967 ft

3. No. of Villages in 10Km Study

Area

Lonand(2.3km), Mariachiwadi(1.3km),

Karadwadi,

Khed Br(4.5km), Balu Patlachiwadi (3.7), Nira

(6.5)

4. Nearest IMD Station No (Nearest IMD is Pune 90 Km away from the

project Site)

5. Nearest Town Lonand- 2.5 km

6. Nearest Railway Line Lonand Railway station – 4.5km

7. Access by Sea No

8. Nearest Airport Pune 80 km

9. Approach to site by Road SH-70 (0.2 Kms away)

10. Religious Place/ Historical Place No

11. A archeological monuments No

12. Reserved Forest / Ecological

Sensitive area

No