Institut za rudarstvo i metalurgiju Bor

The average rate of electricity yield for
water pumping water at the open pit “Potrlica”
is 1.02 kW/m 3 of pumped water.
CONCLUSION
Water inflows into the open pit “Potrlica”
are extremely high. The highest influx
of groundwater flow into the open pit
can not be stopped, so it has to be
pumped. The existing system for water
pumping at the open pit “Potrlica” has
successfully pumped water that got into
the mine area.
With development of mining works
per plan and depth, higher inflows could
be expected than the existing ones. According
to the dynamics of development
work for the next five years, the water
sump would remain at the current level,
while the auxiliary water sump would be
lowered to the level K+600 m.
Therefore, it is necessary in the future
to purchase another BP 300-1 pump and a
pump VPN 251-3 for the main water sump
as well as two pumps type BP 300-1 for
auxiliary water sump.
REFERENCES
[1] Study on Classification, Categorization
and Calculation of Coal Reserves in
the Potrlica Deposit, Coal Mine
Pljevlja, 2006 (in Serbian)
[2] Additional Mining Project of Coal
Mining at the Open Pit Potrlica -
Pljevlja for the Period 2010-2014,
Mining and Metallurgy Institute Bor,
2010 (in Serbian)
No 1,2010. 102
MINING ENGINEERING