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September 2017
Volume 69    Issue 9

Pump phase shift control in the world’s largest iron ore concentrate pipeline

Mining Engineering, 2017, Vol. 69, No. 9, pp. 31-31
van Rijswick, Ralph; Vlot, Erik


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Anglo American operates 18 Weir GEHO piston diaphragm pumps (PD) in the two pump stations of the 52-km (32-mile) long Minas Rio iron ore concentrate pipeline. The pipeline is designed to transport 26.5 Mt/a (29.2 million stpy) of concentrate from the mine to the export terminal at the coast.
During the commissioning of the pipeline in the fall of 2014, high pressure pulsation levels were experienced, with peak-to-peak levels as high as 20 bar. Based on pressure readings it was concluded that hydraulic resonances were present in the system, which were excited by the third and sixth harmonic of the flow pulsation generated by the pumps. 



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