technical NOTES

Comparison for 4/ 5/6 Stage Preheater (Estimation at 9500 TPD Capacity) 

PH Stage Reduction

Remarks

Data Unit 4 stage 5 Stage 6 Stage

Steel and
fabrication
weight of
cyclone

Lacs Rs -360 -180 0

AS calculated

90 Tonnes of 1

cyclone of each

string

Steel &

fabrication cost

considered Rs

100000/t

Dip tube cost Lacs Rs -196.8 -98.4 0

8.2 T dip tube

weight /Rs 600

kg cost /tube

Refractory

• Double
  insulation
  weight

Lacs Rs -476 -238 0

Refractory

weight

considered 680

for 2 cyclone

and both strings

Refractory cost

considered

Rs 35000 /t

including laying

Down comer
duct Lacs Rs -25.6 -12.8^0

Steel weight

for 16 meter for

each stage

Kiln feed BE
cost Lacs Rs -48 -24^0

BE cost
considered
1.5 lacs/meter.
Approx. height
by 16 meter in
one stage
Total Capital
Cost In Cement
Plant Savings

 -1840 -920