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NETZSCH Pumps improve efficiency and reduce costs for Acid Mine Water Drainage

netzschFor a new phase of the project NETZSCH offered a pump package which involved the use of different types of pumps for various applications: NEMO® progressing cavity pumps for polymer dosing and disposal of the gypsum slurry. Moreover, NETZSCH engineers proposed a TORNADO® rotary lobe pump for the lime slurry dosing. The TORNADO® is well suited to the limestone slurry because of its robust design. The hardened steel rotary lobes with a thin rubber inlay work in an elastomer housing. This ensures there is always metal to elastomer contact between the two lobes themselves and the pump housing. This helps to significantly reduce wear. Service intervals are subsequently increased, in some cases by a factor of four. When servicing is being car-ried out, the rubber housing inlay can be quickly and easily replaced and at a much more reasonable price than wear plates or a complete housing.

It has since become clear that the revolutionary design of the TORNADO® rotary lobe pump has increased both the productivity of the system and the length of the mainte-nance intervals. Significant cost savings for the operator due to the avoidance of down-time are a particularly positive aspect of this.