Item UOM (In Rs.)R a t e Qty. Amount in (Lakhs) Qty. Amount in (Lakhs) Increase in price
Steel Structure MT 90000 70 63 70 63
TOTAL A+B+C Rs.in Lacs 808.61 971.09 162.48
Mechanical Equipment
Elevator Spec.
Capacity TPH 450 450
Height C/C Mtrs 54.84 87
Cost/mtrs/TPH Rs./mtr/TPH 350 350
Total Cost Rs.in Lacs 86 137 51
Shaft Power KW 75 144
Power
Consumption KWh/T 0.14 0.27
Power Tariff Rs./KWh 4.5 4.5
Mill Running
hours Hrs^2121
Mill running
days/annum
Days/
Annum^330330
Power Cost/
Annum
Rs in Lacs.
/Annum 23.39 44.91^22
- Note: Operating cost shall be validated with present condition.
2.2 Cement Silo Capacity
The optimum size of cement storage is closely linked to the size of cement mill
capacity.
The optimum sized cement storage must consider;
- Types of different cements
- Mode of Transport-Truck, Rail, Shipping
- Destination like direct to customer or storage in godowns
- Schedule for dispatch i.e. 5 or 6 days/Week
- Seasonal variations
2.2.1 Sizing Norms by Holtec and Holcim
Both Holtec and Holcim suggest having cement silo storage capacity for 7 days
based on cement mill capacity and low seasonal variations as per the following
formula;
Silo Capacity= (Cement production per Annum/Working days per annum) x Storage days
The cement silo capacity is decided based on 2 days storage in total considering
seasonal variations at site and maintenance if any, and number of silos are decided
based on variety of products.
A comparative statement of both capacities of silos showing various parameters is
shown below;
