technical NOTES

S. N. Parameters Unit

Plant 1 Plant 2

Single

String

Double

String

26 Weight of Refractories (TAD, Calciner with

Exit Duct, PH Cyclones, Riser Duct, Feed

Chutes)

Tone 2550 2750

27 Cost of Refractory Rs/Tone 15000 15000

28 Total Cost of Refractories used in Pyro System Rs (in Lacs) 383 413

29 Loss in refectory cost in double stream Tones/An-

num -30

30 COST OF STEEL

31 Weight of Fabricated Steel (Cyclone and

Riser Duct and Calciner)

Tone 860 670

32 Price of Structure Steel Rs/Mt 80000 80000

33 Total Cost Steel Structures Rs (in Lacs) 688 468.8

34 Saving on Steel Cost in Double Stream Rs (in Lacs) 219.2

35 CIVIL STRUCTURES

36 Total concrete quantity for Pyro M3 6983 6100

37 Cost of Concrete Rs/m2 20000 20000

38 Cost of Civil Structure Rs (in Lacs) 1396.6 1220

39 Saving on Civil Structures Rs (in Lacs) 176.6

40 Kiln feed bucket elevator

41 Cost of Bucket Elevator due to more

height of pre-heater system.

Rs (in Lacs) 226 181

42 Saving in cost due to lesser height of

elevator in double string

Rs (in Lacs) 45

43 TOTAL CAPITAL COST Rs (in Lacs) 2693.6 2282.8

44 Total saving in capital cost due double

string preheater

Rs (in Lacs) 411

45 Total saving in variable cost/annum due

to double string

Rs (in Lacs) 208

46 Additional parameters

47 Civil construction time More 2 months

less

48 Erection Time Requirement More Less

49 Possibilities of capacity enhancement Difficult

because

of space

limitations

Easy

because

of space

availability

50 Cost of maintenance Lower Higher

51 Possibility of Plant stoppages due to

cyclone shutdown

Ye s N o