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Rotary K i ln
Process Train ing
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CM
The modern kiln plant
Raw mill
Clinker cooler
Calciner
Rotary kiln
Preheater
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Test procedurerepresentatiiverawmaterial sample
test ingradient furnaceanalysisof test results
Characteristicdataof rawmaterial
Computer
simulationof
burningprocess
Resultskilndimensio
kilnspeed
Process - technological kiln design
Fuel properties
Product qualityConcept of kiln
line
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Rotary kiln design
Required kiln parameter:
Length and diameter
Kiln inclination
Degree of filling
A-Mass
Kiln inlet gas velocity Kiln speed
Kiln shell cooling
Kiln static calculation
Kiln drive power
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Calciner
Calcination
Transition
Sintering
CalcinerKiln
PreheaterKiln
KilnLengthin D0
2 6 6
7 3 4
Cooling
Rotary kiln zones
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Kiln flame - temperature profile
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0 10203040506
Kiln Le
800
1000
1200
1400
1600
1800
2000
2200
2400Ga s (lo n g )M a te ri a l (l o n g )Ga s (s h o rt)M a te ri a l (s h
Kiln temperature profils
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Kiln dimensions
raw material characteristic
moduli: LSF, SM, AMgrinding fineness
quartz grain distribution
homogeneity
impurities: alkali, SO3, Cl
clinker quality (low alkali)
type and quality of fuel
fuel preparation
alternative fuels
fuel flexibility
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9 10111213141516
Length /
1,050
1,100
1,150
1,200
1,250
1,300
1,350
Temperature
Kiln inlet temperature & kiln length
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KilnSystem VolumeloadingLength/diameter
ratioNumber of kilnsupports
tpd/m -LongKiln
- wet 0,5...0,7 30... 40 5- 6
- dry 0,5... 0,9 30... 40 5- 6
Lepol 1,7... 2,2 (10) 13... 17 (2) 3- 4
Gepol 1,5.. 2,0 15... 17 3- 4
Cyclonepreheater(DOPOL)
1-stage 0,7... 1,0 25... 35 5- 6
2-stage 0,8... 1,2 20... 30 4- 5
3-stage 1,5... 2,0 15... 17 3- 4
4-stage2,0... 2,5 (14) 15... 17 (2) 3- 4
5-stage 2,0... 2,5 (14) 15... 17 (2) 3- 4
Calciner Kiln(PREPOL)
- Prepol AT(2...6-stage)2,5... 3,5 (12,5) 14... 17 (2) 3- 4
- Prepol AS(2...6-stage)4,0... 5,0 (11) 12... 15(17) 2- 3(4)
Kiln dimensioning
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Capacity t/d 22
Nom. Kilndiameter m 4,
Diameter @inlet m ,
A- Ma mm 26FF m m ,
Length m 4,
L/D-inner - 12,
L/D-outer - 12,
Volumeloading tpd/m 4,
KilnFuel kcal/kgCli 3
Thermal loading kcal/mh 3,06E+0
Kilnvolume m 4
Freecrosssection m 10,1
Outer Surface m 6
Radiation kcal/kgKl 2,
KilnFilling
Kilninclination [%] 3,Kilnspeed [1/min] 3,
Processtype AS
Degreeof filling Process [%] 6,
Degreeof filling mechanical [%] 8,
Difference(>1,5%) [%] 2,3
Degree of filling
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Process- technological dimensions
Kilnwithpreheater
Kilnwithcalciner
10 12 1415 17
L/Dratio
3- Stations
Numberof stationsandL/ Dratio
2- Stations
10 12 14 17
L/Dratio
3- Stations
Rotary kiln design
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Thermal kiln loading
Kiln diameter [m]
Thermalload
ing[kcal/m2/h]
Millions
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Gas velocity in rotary kiln
2 3 4 5 6 7
K iln dia
6
8
10
12
14
L/D = 1L/D =L/