PRE-FEASIBILITY PROJECT REPORT FOR 1200 MT/DAY …...Pre-Feasibility Project Report – 1200 TPD...
Transcript of PRE-FEASIBILITY PROJECT REPORT FOR 1200 MT/DAY …...Pre-Feasibility Project Report – 1200 TPD...
PRE-FEASIBILITY PROJECT REPORT
FOR
1200 MT/DAY (396000 MT/ANNUM) CEMENT PLANT
Submitted by :
KASHMIR CEMENTS
Village Bhatayan, Khrew, Tehsil Pampore
District Pulwama, Jammu and Kashmir
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SUMMARY
1.0 M/s Kashmir Cements is a partnership firm duly registered with sub registrar, Srinagar having
Mr. Ovaice Ishaq Zaroo and Mr. Davinder Verma as its partners.
2.0 The company is planning to set up a cement plant for the production of portland cement with an
annual installed capacity of 396000 MT/annum or 1200 MT/day to be located at village
Bhatayan, Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir.
3.0 Village Bhatayan, Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir is in the
northern region of India. The co-ordinates of site are 34°03'09.13"N and 75°01'07.96"E . It has
an average elevation of 1897 meters (6214 ft).
4.0 The promoters of the project are already having 77 Kanals (3.89 Hectares) of land at village
Bhatayan, Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir. The benefits of the
location are as below;
Project site is located within approved limestone industrial area of district Pulwama.
Well connected by road network
Proximity to huge market for cement
Manpower available for industrial purposes
5.0 Most of the raw materials required for the project i.e. limestone, clay, coal etc. would be
available from nearby the project site area.
6.0 The cement plant process will have process steps namely - Crushing of Limestone,
Prehomogenisation, Grinding of Raw Materials, Homogenisaton, Pyroprocessing, Clinker
Formation, Cement Grinding, Cement Storage, Packing & Dispatch.
7.0 The industry would require around 9.0 MW of electricity for the cement plant and whole of the
power requirements would be met through state electricity supply. The industry will install D G
sets of 2 x 2500 KVA capacity as backup power supply
8.0 The industry would require around 40 m3/day of fresh water for industrial and domestic use.
Total fresh water requirement for dust suppression would be a maximum of 30 m3/day. To
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support drinking, cooking, sanitary, etc. requirements of the workers, industry will need a
maximum of 10 m3/day.
9.0 The potential air pollution sources in the cement manufacturing process are - crusher section,
raw mill section, kiln section, cement mill section and emissions from roads. Industry would
install ESP at Kiln Section and bag house filters at all the other sections of the industry.
10.0 The industry would not generate any solid wastes as whole of the process rejects solid wastes
would be reused for the production of cement. Hazardous waste will include used/spent oils
and lubricants [classifiable under Category 5.1 of Schedule – I of Hazardous Wastes
(Management, Handling and Transboundary Movement) Rules] – ~1000 litre/year.
11.0 The estimated cost of the proposed project would be around Rs 146.98 Crores. The project
would be installed and commissioned within 18 months from the date of receipt of
Environmental Clearance from the Ministry of Environment, Forests & Climate Change, New
Delhi.
12.0 The industry would operate for 330 days in a year. Manpower requirements for the cement
plant would be around 200 persons.
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CHAPTER – 1
INTRODUCTION
Kashmir Cements is a partnership firm duly registered with sub registrar, Srinagar having Mr. Ovaice
Ishaq Zaroo and Mr. Davinder Verma as its partners. The promoters of the firm intend to set up a
Cement plant for the production of Portland cement with an annual installed capacity of 396000
MT/annum or 1200 MT/day to be located at village Bhatayan, Khrew, Tehsil Pampore, District
Pulwama, Jammu and Kashmir.
The promoters of the project will be getting the industrial unit registered with the Secretariat for
Industrial Assistance, Ministry of Industry, Govt. of India for the manufacture of Clinker and Portland
Cement (broad description of manufacture of Portland Cement, aluminous cement, slag cement and
similar hydraulic cements, and also in the form of Clinkers) with a capacity of 396000 MT/annum.
The cement plant is proposed to be set up using Rotary Kiln Technology. The promoters of the project
have already acquired 77 Kanals (3.89 Hectares) of land for the installation of complete cement plant
including area for plantation purposes.
The proposed project comes under the preview of Environmental Clearance and is listed at S. No. 3 (b),
under Category ‘B’, of the schedule of EIA Notification, 2006 and its amendments. The site is located
within 10 km of Dachigam National Park (Protected Areas notified under the Wild Life Protection Act,
1972), so the project comes under Category – A.
The estimated cost of the proposed project would be around Rs 146.98 Crores. The project would be
installed and commissioned within 18 months from the date of receipt of Environmental Clearance from
the Ministry of Environment, Forests & Climate Change, New Delhi.
The industry would operate for 330 days in a year. The cement plant would require a power input of
around 9.0 MW which would be available from state electricity supply. Manpower requirements for the
cement plant would be around 200 persons.
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Table 1: Salient Features of the Project
S. No.
Particulars Details
1. Nature & Size of the Project Clinker and Portland Cement plant having production capacity @ 1200 MT/day or 396000 MT/annum
2. Category of the Project S. No. 3 (b); Category ‘B’. Dachigam National Park falls within 10 kms. of project site and general condition is applicable, so the falls under Category ‘A’.
3. Location Details
Village Bhatayan
Tehsil Pampore
District Pulwama
State Jammu and Kashmir
Latitude 34°03'09.13"N
Longitude 75°01'07.96"E
4. Total Plant Area 3.89 Hectares/9.6 Acres.
5. Greenbelt / Plantation Area 1.28 Hectares/ 3.2 Acres, i.e. ~33% of the project area will be covered under greenbelt/ plantation
6. Environmental Setting Details
Nearest Village Bhatayan
Nearest Town & City Pampore (15 km from site)
Nearest National/State Highway NH 44 (15 kms.)
Nearest Railway station Pampore Railway Station (15 km)
Nearest Airport Srinagar (30 km)
National Parks, Wildlife Sanctuaries, Conservation Reserves, Tiger/ Elephant Reserves
Dachigam National Park falls within 10 km radius from the plant site.
River / Water Body No river/water body within 10 km radius of plant site
7. Products to be manufactured Clinker/Portland Cement @ 1200 MT/day or 396000 MT/annum
8. Raw Material Consumption
Limestone – 1470 MT/day Coal/Pet coke – 245 MT/day Clay – 306 MT/day Iron dust – 20 MT/day
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9. Source of Water Ground Water @ 40 m3/day
10. Quantity of Effluent generation Domestic Effluent @ 9 m3/day
11. Disposal of treated effluent Treated domestic effluent to be used on land for irrigation purposes within the factory premises.
12. Details of process emissions Process emissions from crusher section, raw mill section, kiln section, cement mill section and emissions from roads
13. Proposed air pollution control device Bag Filters for crusher section, raw mill section, cement mill section etc. and ESP for Rotary Kiln
14. Cost of the Project: Rs (in Crores) 146.98 Crores
15. Working Days 330 days / annum
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CHAPTER – 2
PROJECT LOCATION
Kashmir Cements are proposing to set up a cement plant for the production of Portland Cement with an
annual installed capacity of 396000 MT/annum or 1200 MT/day to be located at village Bhatayan,
Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir. The company has already acquired
land at the existing location for the proposed expansion project.
2.1 SELECTION OF SITE/SITE DETAILS
The basic criteria for the selection of site for the cement plant is as below;
a) Raw material (limestone and coal) availability
b) Raw material cost
c) Transportation cost
d) Accessibility to markets
e) Availability of land
f) Connectivity of road/rail network.
g) Market for final Product
Advantages of the location at village Bhatayan, Khrew, Tehsil Pampore, District Pulwama,
Jammu and Kashmir for the proposed project.
The promoters of the project are already having around 9.62 acres of land at village Bhatayan,
Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir. Besides this, the other
benefits of the location are as below;
a) The project falls within the approved industrial limestone area – ‘Khrew Industrial
Limestone Area’ of Jammu and Kashmir. Khrew limestone area is rich in limestone.
The quality of limestone available at Khrew area is suitable for the production of
cement. The limestone in the area is divided into three bands based on chemical
quality. All these bands show lime stone content more than 50%.
b) Coal of requisite quality is available for Kalakote in Jammu and Kashmir and Coal
Mines at Bihar and West Bengal. The calcinated clay is available from local and
adjoining areas.
c) Khrew industrial area is well connected with road network. The project site is around
15 kms. away from NH 44.
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d) Srinagar city is around 30 kms. from the site.
e) Airport connectivity - The nearest airport is located at Srinagar which is around 30
kms. from the site.
f) Police Station – Khrew Police Station at the distance of around 3 km.
g) Hospital- Government PHC & CHC within 15.0 km in Pampore Town. Other hospitals
located in Srinagar at a distance of around 20 kms. from site.
Topography & Climate : The site area lies in the Himalyan Zone and its topography is well
defined by a series of hill ranges which rises in height towards north-east. The altitude varies
from 1500 meters to 3000 meters and high riches of the area are snow covered. The nearby
valley area is extensively cultivated. The higher riches nearby the area has forests vegetation.
The vegetation varies from dry scrub forests at lower altitudes to Alpine pasture at higher
altitude. Climate in and around the site area varies considerably from month to month. The
minimum air temperature drops below 0ºC, at times, it can go down to -5 to -7ºC. Ground frost
is a common phenomenon during mid-winter. The rise in temperature is gradual when the air
has high moisture content with the sky remaining overcast; the rise is however steep when the
sky is clear and there is less moisture content in the air. The maximum air temperature goes
up to 32ºC. In the study area, annual minimum and maximum temperature range (of extreme
variation) is -5 to 32ºC.
2.2 Details of Alternative Sites
The promoters of the project have already acquired land at the proposed location. Further, as
mentioned earlier, the project is located within the Khrew Industrial Limestone Area of district
Pulwama. Limestone is the basic raw material for the production of cement. Therefore, no
alternative site has been considered by the company.
2.3 Utilization of Land
The detailed breakup of the land for various uses of cement plant would be as follows;
S. No. Particulars Land Area (sq. meters)
1. Area for plantation/green area 12900
2. Area for roads/open spaces 5000
3. Covered Area for sheds 5000
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4. Area for fuel/limestone storage 5000
5. Electrical sub station 2000
6. Area for other plant and machinery 9000
Total land area 38900
2.4 Need for the Project
In Jammu and Kashmir, the cement industry is clustered around Srinagar and Pulwama district
where raw material i.e. limestone is found in abundance and it is of the best quality required for
the cement industry. The state has seen a phenomenal growth of cement industry in the area in
the last decade. Cement, being a bulk commodity, is freight intensive and transporting cement
over long distances can prove to be uneconomical. This has resulted in cement being a
regional play. Moreover, the presence of raw material in abundance and incentives offered by
the State Govt. has boosted the entrepreneurs of the region to come up with the state of the art
plants with the latest modern technologies to explore the field and make the cost of cement
production competitive. In the state, the consumption of cement is much more than the local
production. The cement has to be transported from outside the state for meeting the gap
between supply and demand. The project thus enjoys an almost assured market.
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CHAPTER – 3
PROCESS DESCRIPTION
3.0 Kashmir Cements are proposing to set up a cement plant for the production of Portland
Cement with an annual installed capacity of 396000 MT/annum or 1200 MT/day to be located
at village Bhatayan, Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir. The
company has already acquired land at the existing location for the proposed project. The
industry would be operational for 330 days in a year.
3.1 CEMENT PLANT OPERATION
Kashmir Cements would use the ‘dry method’ for the production of clinker and cement. The
different process steps involved in the production of cement are discussed as under;
3.1.1 Limestone
The proposed location of the project is within the Khrew Limestone area in District Pulwama
which is suitable w.r.t raw material availability. The promoters of the project have their own
captive limestone mine from where the limestone would be made available to the plant.
3.1.2 Crushing of Limestone
The big boulders obtained from the mines would be crushed into crushers. The crushing would
be carried out in two stages by using primary crusher and secondary crusher. Jaw crushers
would be employed for reduction of size of limestone boulders to a suitable feed size
acceptable to the different types of grinding machines installed in the plant. The crushed
limestone would be transported to plant stockpile with the help of belt conveyor/ropeway.
3.1.3 Pre-homogenization
The crushed limestone would be transported to stacker reclaimer site with the help of belt
conveyor installed at plant site. The crushed limestone would be pre-blended with the help of
stacker and reclaimer systems. The crushed limestone travelling on the belt conveyors would
be stacked in layers with the help of stacker machine, which moves to and fro along the side of
stacking yard. The stacked materials would be then cut in slices with the help of a reclaiming
machine which mixes the layers of stacked limestone thereby reducing the variation in quality
of limestone as compared to the large variations obtained in the limestone obtained from
mines.
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3.1.4 Grinding of Raw Materials
The pre-blended limestone from stack pile would be transported to raw mill hoppers. Raw mill
hoppers would be provided with continuous weighing machines known as weigh feeders in
order to produce a suitable raw meal proportioned appropriately for production of desired good
quality of cement clinker. Vertical Roller Mill and Tube Mill Grinding machines would be used
for production of pulverized raw meal.
3.1.5 Homogenization
The raw meal ground in the raw mill would be thoroughly blended in vertically tall blending
silos. The blending would be performed pneumatically by introducing the compressed air in the
bed of fine raw meal fed to the blending silo. The blended raw meal would be taken out of the
silo with the help of air slides and would be fed in a central discharge bin, which would be
continuously aerated for accomplishing final blending of raw materials. The characteristics of
blending raw meal would satisfy the requirement of standard deviation variation in the range of
(+/-) 0.2% CaO of raw meal. The moisture content of raw meal powder would be less than 1%.
The properly blended raw meal would now be ready for burning the same to produce cement
clinker in the cement kiln.
3.1.6 Pyroprocessing
The modern pyroprocessing system comprises of three important sections namely preheating
and precalcining, clinkerisation and cooling. The preheating section is a tall column and
comprises of battery of cyclones arranged one over the other in series. The preheaters would
comprise of 5-6 stage of low pressure cyclones. The riser ducts of top stage cyclones would be
connected with powerful induced draft fans also known as preheater fans, smoke gas fans etc.
Precalcining of raw meal would be carried out in separate vessel vertically held and placed in
between preheating and clinkerisation section. The clinkerisation reaction would be carried out
in a rotary kiln. The rotary kilns are a long cylindrical shell provided with refractory bricks from
inside which prevents the heat loss from the kiln and protects the steel shell from any damage
due to persistent high temperature maintained inside the kiln. The dry and properly blended
raw meal would be lifted mechanically by bucket elevator from the bottom of raw meal
blending/storage silo to the top of the preheater, and fed at the top stage of cyclone inlet duct
with the help of screw conveyor and rotary air lock. Raw meal weigh-feeders would be installed
for continuous weighment of raw meal for feeding the same to preheater at a constant rate.
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3.1.7 Coal Grinding System
The coal obtained in the form of lump containing upto 10% moisture would be grounded to
suitable fineness in closed circuit tube mills. The cooler exhaust/ part of preheater gases would
be used for driving away the moisture from coal while grinding the same in the air swept tube
mills.
3.1.8 Clinker Formation
Conversion of raw meal into cement clinker would be accomplished in steps in various zones of
kiln circuit. The pulverized fuel (about 35-40% of total fuel to be fed to kiln system) would be
pushed into the burning zone of rotary kiln through a specially designed burner pipe along with
the carrier air known as primary air. The high temperature persisting in burning zone makes the
fine coal to burn near the tip of burner pipe and helps in flame propagation. The combustion
gases generated from burning of purlverized coal in clinkerisation zone of the kiln flow towards
the inlet of PH fan under the influence of the induced draft created in the kiln circuit. While
flowing from burning zone towards the inlet of fan after passing through Kiln Precalciner–
Preheater circuit, the high temperature combustion gas transfers its heat to the finally derived
raw meal which would be fed to the inlet duct of 1st stage twin cyclone and falls towards the
bottom end of preheater after passing through all stages of cyclones under the influence of hot
gases flowing in the circuit. The moisture and other volatile contents present would be
completely driven away and thus raw meal would attain a precalcination of about 35-40%
before reaching the precalcining vessel installed in between preheater and kiln. The precalciner
would be fired with 40-55% of total pulverized fuel for increasing the precalcination degree of
raw meal up to 90-92% before the same is fed to kiln for accomplishing the clinkerisation
reaction. The remaining 8-10% degree of calcination of raw meal would be performed in the
kiln before the meal enters into the burning zone. Thus, burning zone in rotary kiln would
receive complete decarbonated material, the part of which would be transformed into liquid
after achieving appropriate melting temperature of some of the raw meal components and
powdery form of raw meal would be converted into nodulized clinker form. The final
clinkerisation of raw meal would be achieved between the temperature range of 1250-1450oC
depending upon the raw meal characteristics. The high temperature clinker nodules varying in
size would then fall out of the kiln and enter the cooler.
The modern folax grate coolers would be provided with fixed and moving grate plates. Below
the grate would be provided number of air chambers which receive atmospheric cold air with
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the help of number of high pressure discharge fans in different compartments. The pressurized
air flows through the holes provided in the grate plates and cools the clinker which would be
travelling in the form of granules on the grate plates. The clinker would be cooled down to a
temperature of 100-150oC while leaving the outlet end of the cooler. The cold clinker would be
crushed continuously in a suitable clinker crusher provided at the outlet end of the cooler
before the same is discharged on the clinker transportation system for transporting the same to
clinker storage Silo stock/Pile.
3.1.9 Cement Grinding
In order to achieve the objectives of energy conservation, the clinker produced in rotary kiln
would be usually stored for few days before it is ground in cement grinding mills along with
appropriate quantity of gypsum and other additive materials for production of finely pulverized
cement with desired fineness. The ball mills along with roller press would be used for clinker
grinding in cement plant.
3.1.10 Cements Storage, Packing & Dispatch
The pulverized different types of cements would be stored in different silos installed with
different capacities. Depending upon the market requirements the cement would be loaded in
bulk or packed in 50 KG bags with the help of conventional rotary packages or electronic
packages, loaded onto trucks and finally dispatched to the required destinations.
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MANUFACTURING PROCESS OF CEMENT
Limestone/Iron Dust
Coal
Raw Mill
Storage Silo
Pyro Process
Cooler
Clinker Stock
Cement Mill
Cement Silo
Clay
Packing
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3.4 SUNDRY UTILITIES
3.4.1 Electrical system
Total electrical power requirement will be about 9.0 MW. The industrial unit will setup 66 kVA
main receiving station for receiving and distribution of electricity.
3.4.2 DG sets
The industry plans to install D G sets of 2 x 2500 KVA capacity as backup power supply. The D
G sets would be housed in acoustic enclosures and would comply with the CPCB norms.
3.4.3 Lubricants and oils
The requirements will include hydraulic oil (for hydraulic operations), lubricant oils (for
machinery, in-house vehicles and DG sets), transformer oils (for transformers in electrical sub-
station), and coolant oil. The hydraulic oil will be used in closed loop and needs to be rejected
(to account for loss of its desirable properties) periodically. The rejection, and hence, make-up,
requirement will be about 1000 litre/year. The overall waste lube oil generation will be about
500 litre/year. The transformer oil rejection, and hence, make-up, requirement will be about 200
litre/year. There will be no waste oil on account of coolant oil reject. To make-up for its
consumption (continuous application), about 50 kL/year of coolant oil is needed. To match bulk
application of coolant oil, it will be stored in 10 kL tank.
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CHAPTER – 4
RAW MATERIALS
4.0 Kashmir Cements are proposing to set up a cement plant for the production of Portland
Cement with an annual installed capacity of 396000 MT/annum or 1200 MT/day to be located
at village Bhatayan, Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir. The
company has already acquired land at the existing location for the proposed project. The
industry would be operational for 330 days in a year.
4.1 Raw materials requirements for cement plant
The cement plant will use limestone and coal as basic raw material. Besides this, other raw
materials will be added in the process for the production of Portland cement. Daily consumption
of raw materials for the cement plant is given below;
S. No.
Raw Material Consumption per ton of cement
Overall daily consumption
MT/MT of Cement MT/day
1. Limestone 1.224 1470
2. Clay 0.255 306
3. Coal/pet coke 0.204 245
4. Iron ore/dust 0.017 20
Total 1.700 2041
4.2 Raw Materials Availability
Lime Stone – Limestone is the main raw material for the production of cement. It should have
the following chemical composition/specifications (as per NCBM) for its use in the cement
industry.
Oxide components Acceptable range Limiting value beneficiation for blending
Cao 44 - 52 40
Mgo 3.5 5
SiO2 To satisfy LSF & S. Min. raw mix.
Al 2O3
Fe2O3
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Khrew limestone area is rich in limestone. The quality of limestone available at Khrew area is
suitable for the production of cement. The limestone in the area is divided into three bands
based on chemical quality. All these bands show lime stone content more than 50%. All the
quantities of limestone occurring within 60 mts. below the probable reserves have been
considered as possible reserves. The summery of category-wise reserves within the area is
given below:
Upper limestone (In Tons.)
Middle limestone (In Tons.)
Lower limestone (In Tons.)
Proved reserves 14,76,000 24,65,625 26,45,250
Probable reserves 13, 62,750 25, 41,000 40, 45,500
Possible reserves 7, 66,875 59, 38,875 54, 52,125
Other raw materials - The other raw materials required by the unit are coal/pet coke, clay, iron
dust and gypsum etc. Coal of requisite quality is available for Kalakote in Jammu and Kashmir
and Coal Mines at Bihar and West Bengal. The calcinated clay is available for local and
adjoining areas. Iron ore/dust is available from Uri and Rambari mines and steel Re-Rolling
Mills at Jammu and outside the state. The other raw material viz gypsum, is easily available
locally from J & K Minerals Ltd, a State Corporation. The pet coke is available from Reliance
Industries, Jamnagar as well as IOC, Panipat. The consumable stores and packing material i.e.
HDPE bags, are easily available from Jammu and Delhi Markets. As such, the unit is not likely
to face any difficulty regarding availability of raw materials and packing materials of required
quantity at maximum capacity utilization.
4.3 Transportation
The existing plant location is at Khrew. The unit has already constructed approach metal road
to connect the location of the industry with the nearby metalled road. Thus, the unit is not likely
to face any difficulty on account of transportation of raw materials and finished goods.
The limestone from the limestone mines which are located adjoining to the sites would be
transported through trucks to the limestone storage area. Gypsum would be available at site
from Anantnag, Baramulla, Kathua, Udhampur, Doda and Pulwama areas through trucks. The
other raw materials would be coal of requisite quality which is available for Kalakote in Jammu
and Kashmir and Coal Mines at Bihar and West Bengal. In case of purchase of coal from Bihar
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and West Bengal, the same would be transported through railway wagons upto Jammu, and
from there it would be transported by covered trucks up to the site. The calcinated clay is
available from local and adjoining areas and would be transported through trucks. Iron ore/dust
is available from Uri and Rambari mines and steel Re-Rolling Mills at Jammu. The iron ore/dust
would be transported to the site by trucks.
4.4 Storage of Raw Materials
The industry would construct covered areas for the proper storage of raw materials. The sheds
for the storage of raw materials would be coved from the top as well as from the sides for the
control of fugitive emissions. The section wise area to be constructed for the storage of raw
materials as well as product would be as follows;
S. No.
Particulars Length (m)
Width (m)
Area (m2)
1. Raw Material Storage 50.00 10.00 500.00
2. Raw Material Storage Section Lime Stone Coal/Pet Coke Clay Additives
40.00 50.00 40.00 20.00
30.00 15.00 10.00 10.00
1200.00 750.00 400.00 200.00
3. Raw Mill Section Raw Mill MCC Room
30.00 15.00
25.00 10.00
750.00 150.00
4. Blending Silo 40.00 25.00 1000.00
5. Kiln Section Kiln Section MCC Room
30.00 10.00
15.00 05.00
450.00
50.00
6. Clinker/Gypsum Section Clinker Section Gypsum Section
40.00 15.00
20.00 10.00
800.00 150.00
7. Cement Mill Section Cement Mill MCC Room
40.00 10.00
10.00 05.00
400.00
50.00
8. Cement Silo and Packing 30 20 600
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CHAPTER – 5
PRODUCTION
5.0 Kashmir Cements are proposing to set up a cement plant for the production of Portland
Cement with an annual installed capacity of 396000 MT/annum or 1200 MT/day to be located
at village Bhatayan, Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir. The
company has already acquired land at the existing location for the proposed project. The
industry would be operational for 330 days in a year.
5.1 Production from Cement Plant
Daily/Annual production of Clinker and Portland Cement from the proposed cement plant is
given below;
S. No.
Item MT/day MT/Annum
1. Clinker 1200 396000
2. Portland Cement 1200 396000
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CHAPTER – 6
ENVIRONMENTAL MANAGEMENT AND POLLUTION CONTROL
6.0 Kashmir Cements are proposing to set up a cement plant for the production of Portland
Cement with an annual installed capacity of 396000 MT/annum or 1200 MT/day to be located
at village Bhatayan, Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir. The
company has already acquired land for the proposed project. The industry would be operational
for 330 days in a year. During the operation of the cement plant, environmental pollution would
be generated from different sources. The industry would adopt the latest technologies for the
abetment of pollution generated by the production process.
6.1 Water and Waste Water Management
The industrial unit will use dry technology for the production of cement. Due to this, the water
consumption in the plant would be for dust suppression only. No wastewater would be
generated from the water consumed for dust suppression purposes. Total fresh water
requirement for dust suppression would be a maximum of 30 m3/day. To support drinking,
cooking, sanitary, etc. requirements of the workers, industry will need a maximum of 10 m3/day
of fresh water, which will contribute to about 9 m3/day of domestic sewage. The domestic
wastewater would be treated within the plant premises and the treated wastewater would be
used for irrigating the green area within the plant premises.
6.2 Air Pollution Generation
The potential air pollution sources in the cement manufacturing process are - crusher section,
raw mill section, kiln section, cement mill section and emissions from roads. Details of air
pollution generation from cement plant is as below;
6.2.1 Crusher Section
The mined limestone contains substantial quantity of fines. Beyond that, additional fine matter
gets generated due to the breaking of stones during transportation and by impact during free
fall of lime stones. Due to this, during unloading operations, significant quantity of fugitive
emissions gets generated. The dust gets airborne and spreads in the vicinity in the form of a
cloud. These emissions are intermittent and continue for a short duration of about a minute for
each unloading operation. This dust if not effectively controlled (suppressed or extracted), the
cumulative effect of dust emission may lead to substantial fugitive emissions. The dust
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emissions are substantial when the limestone is dry, whereas the emissions are lesser with wet
stones.
Fugitive dust emissions in the crushing section would occur at 3 stages - firstly during feeding,
secondly during crushing and thirdly during free fall on belt conveyor. The magnitude of dust
generation would depend on the hardness, moisture content and feed size of limestone. During
feeding, the dust would be emitted due to movement of material and friction of the material
resulting in breaking or loosening of particles, thereby the fines getting air borne. During
crushing, breaking of lumps would result in generation of newer fines. During discharge of the
material over belt conveyor, dust would get air borne due to free fall of material through a
height.
During transfer operation involving free fall of material from a higher to a lower level, emissions
would be generated. In addition, some fresh fine dust would also be generated as a result of
breaking of lumps due to impact during the free fall and by breaking due to
movement/conveying of material.
6.2.2 Raw mill section
In the raw mill section, the emissions generate from handling and crushing of coal and handling
of other raw materials. The coal unloading operation would be intermittent and would generate
substantial quantity of fugitive emissions. The emissions would last for a short duration of a
minute or two during each unloading, but in terms of quantity of the emissions, it would be
substantial. Similarly, substantial fugitive emissions would be generated during the coal
crushing operation. The degrees of emissions would depend on hardness, moisture content
and size of feed. The shape and arrangement of breaker plates & the circumferential velocity of
rotor would also play a major role. Low velocity would result in coarse product. With higher
velocity, the size reduction energy would be greater and the material would be broken into
correspondingly smaller fragments resulting in substantial fugitive emissions. The emissions
would also occur during feeding of coal into crusher and at the crusher discharge location.
Besides that, substantial fugitive emissions would be generated from the coal stockpile during
wind currents. The degrees of emissions would depend upon moisture content, fines present in
the coal.
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In case of gypsum, due to high percentage of fines, substantial fugitive dust emission would
occur, especially during loading and unloading operation. The movement of the pay loader and
truck over the gypsum floor would lead to fugitive emissions. Fines would also get air borne due
to wind. During summer season, the wind carryover from open stockpiles would lead to
substantial fugitive emissions.
Handling and storage of additives would give rise to substantial fugitive emissions if the
material is dry. The emission would occur primarily due to operations like loading and
unloading, movement of pay loaders and due to wind currents, carrying away fines from the
stockpiles.
6.2.3 Kiln Section
The following descriptions of emissions refer to modern kiln plants based on dry process
technology.
Carbon dioxide - During the clinker burning process CO2 would be emitted. CO2 would account
for the main share of these gases. CO2 emissions would be both raw material related and
energy related. Raw material related emissions would be produced during limestone de-
carbonation (CaCO3) and would account for about 60 % of total CO2 emissions.
Nitrogen oxides (NOx) - The clinker burning process would be a high-temperature process
resulting in the formation of nitrogen oxides (NOx). The amount formed would directly relate to
the main flame temperature (typically 1850 - 2000 °C). Nitrogen monoxide (NO) would account
for about 95 % and nitrogen dioxide (NO2) for about 5 % in the exhaust gas of rotary kiln. Most
of the NO would be converted to NO2 in the atmosphere.
Sulfur dioxide (SO2) - Sulfur would be an input into the clinker burning process via raw
materials and fuels. Depending on their origin, the raw materials may contain sulfur bound as
sulfide or sulfate. Higher SO2 emissions by rotary kiln systems in the cement industry are often
attributable to the sulfides contained in the raw material, which become oxidized to form SO2 at
the temperatures between 370 °C and 420 °C prevailing in the kiln pre-heater. The sulfur input
with the fuels would be completely converted to SO2 during combustion in the rotary kiln. In the
pre-heater and the kiln, this SO2 would react to form alkali sulfates, which are bound in the
clinker.
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6.2.4 Cement mill section
Clinker Transfer Point - The fine dust associated/adhered with clinker gets loose and would get
air borne due to free fall from certain height during transfer operation. As the clinker is dry in
nature and the quantity of fines is substantial so significant fugitive emissions would occur at
transfer points.
Silo Vents - As only dry and finely ground material would be stored in silos it has the great
potential to generate fugitive emissions. The emission would escape through silo vents or any
other leakages. At times if some of the filter bags are torn, substantial emission occurs from the
bag house chimney also. Emission also occurs from the bottom end of the silo during retrieval
operation, through leakages if any.
6.2.5 Packing Section
As cement contains substantial quantity of fines below 10 microns and it is in dry condition, any
leakage or spillage leads to fugitive emission. During conveying of the cement bags emissions
would be generated. As the cement bags are manually loaded in trucks during which bags are
dropped from a height which causes emissions.
6.2.6 Emissions from Road
During movement of loaded vehicles on the roads, fine dust settled on the roads get airborne
and remains suspended for a long time. Repetitive movement of vehicles throughout the day
leads to substantial fugitive emissions.
6.3 Air Pollution Control
Fugitive Emission Control
Limestone unloading operation - For the control of fugitive emissions from limestone unloading
section the “dust containment cum suppression systems” would be installed. A permanent shed
would be installed over the dump hopper. For containment of dumping sides, cut pieces of
worn-out belt conveyors (flexible rubber based) would be provided in a form like curtain on 3
sides of the shed. The curtains would be provided upto the dumper top level from the shed
ceiling.
For the purpose of dust suppression, water would be sprayed through nozzles during
unloading. Remote sensor based on/off switch arrangement for water sprays would be
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installed. The sprays would get operational only during unloading operation and would stop as
the dumper moves away. The spray nozzles would be placed above the unloading hopper at a
height so that the spray covers the hopper cross section. A regular maintenance schedule
would be employed for cleaning and replacement of the nozzles.
Lime Stone Crushing Operation - Dust generated during crushing operation would be captured
with dust extraction cum pulse jet bag filter type control system. The dust collected in bag filter
would be returned at immediate downstream location. At this point, an extraction would be
provided to suck the air borne fines back to bag filter.
Lime Stone Transfer Point - Dust extraction cum pulsejet bag filter type control system would
be adopted at limestone transfer points. The collected dust from bag filter would be emptied
over conveyor belt at a downstream point.
Lime stone Stacker and Reclaimer - To control emissions, a set of water spray nozzles would
be provided over the conveyor belt in the stacker feed point.
Coal Unloading Operation - The dump hopper would be enclosed in a shed. The industrial unit
will have dust suppression arrangement for suppressing the fugitive emissions alongwith dry
extraction cum bag filter. The spray nozzles would be arranged either overhead or opposite to
the side of unloading operation.
Coal Crushing Operation - Bag filter type control system would be adopted for capturing the
dust emissions. The collected dust would be recycled on conveyor belt.
Coal Transfer Points (Primary Crusher to Stacker/stockpiles) - Bag filter type control system
would be adopted for capturing the dust emissions. The collected dust would be recycled on
conveyor belt.
Coal Stacker & Reclaimer - To control emissions, generally a set of water spray nozzles are
provided over the conveyor belt in the stacker feed point.
Gypsum Handling and Storage – Gypsum storage would be provided in enclosed storage area.
Gypsum being highly hygroscopic in nature, water would not be spread for dust suppression
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purposes else it would form lumps which further needs to be broken and therefore dust
suppression measure would not be practiced. The dry extraction cum bag filter type system
would be adopted for controlling the emissions.
Clinker Transfer Point (Clinker Cooler to Clinker Stock Piles) - The industrial unit will have dry
type dust extraction cum bag filter systems installed for transfer points. Due to longer distances
between transfer points, separate bag filters would be installed for each transfer point. Pulsejet
type bag filter would be employed. From all these bag filters the collected fine dust would be
recycled into the system at an immediate downstream location.
Packing Section - Natural ventilation would be provided for dust dispersion in shop-floor.
Conveyor belts would be fitted with rubber flaps and brushes for continuous surface cleaning of
cement bags. The packer machines would be provided with dust extraction cum bag filter
arrangement.
Silo Vents - All the silo vents would be provided with bag filters.
Emissions from Road - The industrial unit would provide concrete paved road upto its plant
premises and within the industry. Wheel mounted mobile vacuum cleaner would be procured
for sweeping the road dust periodically. In addition, intermittent wetting of roads would also be
practiced.
Details of air pollution control system to be provided for the control of emissions
S. No. Section Type of APCD
1. Limestone crushing section Pulse jet type bag house filter
2. Limestone transfer section Pulse jet type bag house filter
3. Coal crushing section Pulse jet type bag house filter
4. Coal transfer section Pulse jet type bag house filter
6. Kiln section (rotary kiln) Electrostatic precipitator
7. Blending section Pulse jet type bag house filter
8. Clinker storage section Pulse jet type bag house filter
9. Clinker transport section Pulse jet type bag house filter
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10. Cement Mill Section Pulse jet type bag house filter
11. Cement ventilation section Pulse jet type bag house filter
12. Cement Blending Section Pulse jet type bag house filter
13. Packing Section Pulse jet type bag house filter
Flue gas cleaning from vertical shaft kiln and rotary furnace - The rotary kiln furnace
emissions will be conveyed into the APCD, the electrostatic precipitator, where it will get
cleaned (removal of SPM) before being discharged into the atmosphere, through a stack of
adequate height. The flue gas cleaning system will achieve SPM removal efficiency of more
than 99.5%, resulting in emission discharge.
6.4 Solid waste
The industry would not generate any solid wastes as whole of the process rejects solid wastes
would be reused for the production of cement.
6.5 Hazardous waste
Hazardous waste will include used/spent oils and lubricants [classifiable under Category 5.1 of
Schedule – I of Hazardous Wastes (Management, Handling and Transboundary Movement)
Rules] – ~1000 litre/year. The used oils will be stored in metallic drums inside a lined and
covered room and will be, ultimately, sold to the authorized recyclers. Appropriate record of the
hazardous waste shall be maintained as specified in of Hazardous Wastes (Management,
Handling and Transboundary Movement) Rules.
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CHAPTER – 7
PROJECT ESTIMATES
The estimated cost of project for the proposed cement plant for the production of portland
cement with an annual installed capacity of 396000 MT/annum or 1200 MT/day to be located at
village Bhatayan, Khrew, Tehsil Pampore, District Pulwama, Jammu and Kashmir is as below.
Breakup of Capital Cost of Project
S. No.
DESCRIPTION COST Rs. in Lakhs
1 Cost of Land and Land Development 389.42
2 Buildings and Civil Works 4510.80
3 Plant and Machinery Equipment 2570.26
4 Misc. fixed assets 4051.36
5 Pre-operative Expenses 1822.90
6 Contingencies 576.09
7 Margin Money for working 777.26
Total Project Cost 14698.09