Peripheral Dewatering



Peripheral dewatering and the maintenance of a constant water level typically involve a number of wells installed around open-pit mines. Grundfos can offer a flexible and effective solution for removing clean or dirty water with particles and adjusting water levels with bore holes from 30 m to 600 m. Higher-grade material anti-corrosion versions are also available for severe conditions with low pH and chlorides.

For example, Grundfos can supply SP pumps with an empty chamber that are suitable for your needs today, and that offer a fast and effective solution when greater depth and power is required. A flexible riser hose makes sure that such additions are handled easily and problem-free.

With possible great fluctuations in demand for performance and multiple pumps installed, adding variable frequency drives will equalize the hydraulic load to the wells, automatically adjusting pump speed to demand. This ensures optimal dewatering around the mine periphery.

Grundfos motor protection is developed for pumps and not just the motor, and used together with an Interface Module ensures dedicated dewatering level control that offers greater protection, because parameters other than electrical conditions in the motor are measured. This makes possible timed stop/start routines that don’t damage the pump or motor and helps avoid sudden outages and the risk of flooding.

Correct material selection is the most important method of corrosion prevention, prolonging the life span of pumps systems. Grundfos can supply the specialist expertise to help meet your performance objectives, from the initial identification of needs, to the selection, installation, operation, and maintenance of the pumping solution. Furthermore, Grundfos tailors commissioning agreements and service agreements to your requirements, and spare parts kits and on-site recommended spare parts can also be arranged.

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