chapter - 1 introduction - Meghalaya State Pollution Control Board

Hills Cement Co. Limited.
Raw mix preparation
Pyro-processing
Cement
- Raw material control in quarry
- Raw material control before pre-blending
- Raw material control after raw mill
- Kiln feed
- Fuel
- Clinker
- Before cement mill
- After cement mill
UTILITY SYSTEMS
Compressed Air Supply
The compressed air is required mainly for dust collection equipment and
operation of pneumatic valves. Blowers will be used for aeration of silos. Two
centralized compressor room are proposed, one for the Clinkerisation section
and the other for cement grinding, storage and packing section. Blowers may
be suitably accommodated under buildings / silos near points of utility.
Power
The power requirement for the plant has been estimated as 10 MVA. The
project proponent has a sanction of 10 MW from MeSEB. The power
requirement will also be met by captive power plant.
Water Requirement
Total water requirement for project is expected to be 400 m 3 / day. Some
quantity of water will be required drinking and sanitation for plant personnel.
Total requirement of fresh water make-up including drinking, auxiliary cooling
etc. will be 6-8 M 3 /Hr. Water is available in plenty from nearby underground
natural spring.
Water balance including requirement of water for power plant is given
separately. (Page ref. 32)
Manpower Requirement
Several cement plants are operating in region’s vicinity. Therefore the trained
manpower in marginal, supervisory and skilled categories is expected to be
easily available.
For operation of the power plant and outside service facilities, like coal
handling plant (for AFBC boiler only), ash evacuation system from the ash
silo etc. as well as for day-to-day preventive maintenance of the plant,
necessary manpower has been considered. The estimated number of
technical personnel required is around 450 comprising executives, skilled, a
semi- skilled and unskilled worker. About 150 workers and staff shall be
Pollution Control Consultants (India) Pvt. Ltd. 22