During the recommissioning of an iron ore mine in Swaziland that had been shut down, the consultant appointed by the mining company was initially planning to install a NEMO® progressing cavity pump which he had already had good experience of in the past.
The NETZSCH technicians on site on the other hand advised him to use a TORNADO® rotary lobe pump, because it is particularly well suited to the fine, non-settling iron slurry needing to be transported and also requires far less space due to its compact design. Thanks to the customer’s trust in NETZSCH’s competence, it was possible to convince them to change the pumping technology being deployed.
The rotary lobe pump, which is already compact anyway, was located in the optimum position on site for the restricted conditions, so that the inlet and discharge ports are positioned one above the other. For more than eight months now, the system has been pumping 160m³/h of fine iron slurry with a grain size of up to 150μm without any downtime or breakdowns. The pump is proving to be resistant and reliable, even though the medium is extremely abrasive.
Although the pump was at first incorrectly installed vertically, it ran without any problems.