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What is Cement Presentation Transcript
1.INTRODUCTION
Aditya Cement is a unit of Grasim Industries Ltd. Of Aditya Birla Group
Located at shambhupura(chittorgarh)
Contains two units
Completed in 1995 & 2007 resp.
Hold ISO 9001:2001 & ISO 14001
WCM in 2001
10th largest producer of cement globally
1980 first plant at jawad
L&T acquire => ULTRA TECH
Aditya Cement is a unit of Grasim Industries Ltd. Of Aditya Birla Group
Located at shambhupura(chittorgarh)
Contains two units
Completed in 1995 & 2007 resp.
Hold ISO 9001:2001 & ISO 14001
WCM in 2001
10th largest producer of cement globally
1980 first plant at jawad
L&T acquire => ULTRA TECH
2.WHAT IS CEMENT ???
Mixture of limestone, clay, silica, gypsum.
Main concern – OPC (Ordinary Portland Cement)
fine powder which when mixed with water sets to a hard mass
commonly used construction material
manufactured by burning a mixture of limestone and Clay
then finely grinding the resulting clinker along with Gypsum.
Mixture of limestone, clay, silica, gypsum.
Main concern – OPC (Ordinary Portland Cement)
fine powder which when mixed with water sets to a hard mass
commonly used construction material
manufactured by burning a mixture of limestone and Clay
then finely grinding the resulting clinker along with Gypsum.
3.LINE ONE VIEW OF SHAMBHUPURA PLANT
4.Manufacturing Process of Cement
There are four main process routes in the manufacturing of cement the dry, semi-dry, semi-wet and wet process.
Common to all these processes are the following sub-processes -
Quarrying
Raw materials preparation.
Fuels preparation.
Clinker burning.
Mineral additions preparation.
Cement grinding.
Cement dispatch.
5.STACKER AND RECLAIMER
The raw material fed to a kiln system needs to be as chemically homogeneous
material from the quarry varies in quality, initial preblending can be achieved firstly by stacking
the material from the quarry is fairly homogeneous, simpler stacking and reclaming systems can be used.
There are four main process routes in the manufacturing of cement the dry, semi-dry, semi-wet and wet process.
Common to all these processes are the following sub-processes -
Quarrying
Raw materials preparation.
Fuels preparation.
Clinker burning.
Mineral additions preparation.
Cement grinding.
Cement dispatch.
5.STACKER AND RECLAIMER
The raw material fed to a kiln system needs to be as chemically homogeneous
material from the quarry varies in quality, initial preblending can be achieved firstly by stacking
the material from the quarry is fairly homogeneous, simpler stacking and reclaming systems can be used.
6.Coal Mill and Raw Mill
The main parts of coal mill are grinding bowl, the roller pairs & the housing with static or dynamic separator the roller pair moving on the grinding bowl.
The coal comes from coal reclaimer by belt conveyor to coal Hooper
Coal is conveyed from hopper by drag chain to gravel gate & feed to the roller mill
The main parts of coal mill are grinding bowl, the roller pairs & the housing with static or dynamic separator the roller pair moving on the grinding bowl.
The coal comes from coal reclaimer by belt conveyor to coal Hooper
Coal is conveyed from hopper by drag chain to gravel gate & feed to the roller mill
7.BLENDING AND SILOS
The continuous blending silo is simultaneously used for blending of the raw mix as well as for its storage
The multiflow silo is a large capacity silo made has reinforced cement
The silo consists of: -
Silo
Material distribution
Central chamber
Outer chamber
The continuous blending silo is simultaneously used for blending of the raw mix as well as for its storage
The multiflow silo is a large capacity silo made has reinforced cement
The silo consists of: -
Silo
Material distribution
Central chamber
Outer chamber
8.Pre heater
function of the Preheater cyclone is the preheating of the raw meal, from outlet hot gases of kiln.
It heats up the raw meal in the gas stream.
It separates the raw meal and discharges it via the meal chuts.
function of the Preheater cyclone is the preheating of the raw meal, from outlet hot gases of kiln.
It heats up the raw meal in the gas stream.
It separates the raw meal and discharges it via the meal chuts.
9.KILN
Heart of cement plant
The rotary kiln consists of a steel tube supported by two to seven or more support stations.
rotate the kiln about its axis at 0.5 to 4.5 revolutions per minute
Temp around 1450-2000 degree centigrade
kiln is at operating temperature the specified clearance between the tyre & the kiln cylinders is reduced to a very small gap
Clincker are products of kiln
Heart of cement plant
The rotary kiln consists of a steel tube supported by two to seven or more support stations.
rotate the kiln about its axis at 0.5 to 4.5 revolutions per minute
Temp around 1450-2000 degree centigrade
kiln is at operating temperature the specified clearance between the tyre & the kiln cylinders is reduced to a very small gap
Clincker are products of kiln
10.Clinker Cooling & Clinker Cooler
Cooling of clinker is necessary because –
Hot clinker is difficult to convey
Hot clinker has a negative effect on the grinding process
The reclaimed heat content of the hot clinker of about 200 kcal/kg is an important factor lowering the production cost
Proper cooling improves the quality of the cement
This process also recovers heat from the clinker back to the kiln by preheating the air
Cooling of clinker is necessary because –
Hot clinker is difficult to convey
Hot clinker has a negative effect on the grinding process
The reclaimed heat content of the hot clinker of about 200 kcal/kg is an important factor lowering the production cost
Proper cooling improves the quality of the cement
This process also recovers heat from the clinker back to the kiln by preheating the air
11.CEMENT MILL
In the cement mill various equipment’s are used for various purpose in cement mill area we first mix gypsum in clinker
the various main equipment used in the cement mill are : -
Weight feeder
Belt conveyor
Polycom
Separator
Cement mill
Elevators
Air slide
In the cement mill various equipment’s are used for various purpose in cement mill area we first mix gypsum in clinker
the various main equipment used in the cement mill are : -
Weight feeder
Belt conveyor
Polycom
Separator
Cement mill
Elevators
Air slide
12.Packing Plant
The EEPL HAVER ROTO PACKER, is rotating valve bag filling machine for packing easy flowing powdery material and granular bulk material into bags with simultaneous weighing of the bulk material from 10 – 50 Kg.
The EEPL HAVER ROTO PACKER, is rotating valve bag filling machine for packing easy flowing powdery material and granular bulk material into bags with simultaneous weighing of the bulk material from 10 – 50 Kg.
13.Pollution Control Equipment
In a cement industry a large quantity of dust is produced during production, somewhat it is due to grinding or any other reason
So that the dust must be treated or separated, from the dust laden gases, before it allows freeing
Usually a number of dusts collecting equipment’s are used widely
In a cement industry a large quantity of dust is produced during production, somewhat it is due to grinding or any other reason
So that the dust must be treated or separated, from the dust laden gases, before it allows freeing
Usually a number of dusts collecting equipment’s are used widely
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