THE FUNCTIONAL CORRELATION OF THE PARAMETERS OF THE WATER EVACUATION FROM THE LIGNITE MINING PIT

摘要

In the lignite mining pits from the Oltenia Coalfield appear special problems because of the big quantities of water which come from infiltrations and rainfall. In order to evacuate these enormous quantities of water there are being used pumping aggregates whose number depends on the surface of the mining pit and on the quantity of water which is estimated to be evacuated from that certain mining pit. The electrical energy consume of these pumping aggregates is very high, almost 10% from the total consume of electrical energy from the mining pit. This justifies the efforts which must be done by specialists in order to reduce this consume of electrical energy.