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PMPS pumps into mining
23 October 2017
PMPS pumps into mining

With its Rotho peristaltic hose pump, the most commonly used pump to move viscous and high solid content liquids without clogging, PMPS, a packaged metering and pumping solutions provider in South Africa, is offering a new, unrivalled pumping solution to the local mining sector.   

 

Packaged Metering & Pumping Solutions (PMPS) will soon introduce its Rotho peristaltic hose pump from Italian manufacturer, Ragazzini, to the local mining sector. Having previously been available to the wine industry only, the versatile, positive displacement transfer machine, can be deployed for pumping a variety of substances across an array of industries, but it is in mining where PMPS believes the innovative pump will offer a greater value proposition with its ability to move viscous/abrasive fluids.

Peristaltic pumps are more rugged than diaphragm pumps and are more common in the local mining industry. Peristaltic pumps don’t use any kind of valves or check balls, so they are well-suited for slurries and chemicals that have particulates, while a diaphragm pump is ideal for clean fluids only.

“A key competitive edge of the new Rotho peristaltic hose pump is that it allows for pumping of both rugged and clean fluids, while available competitive solutions only do either of the two,” says David O’Neill, Technical Director at PMPS, adding that the Rotho is the only pump that has the ability to move viscous and high solid content liquids without blocking.

Unique features

Several features of this pump are truly unique and have made it a pump of choice across a number of applications in several industries such as paint, foods, beverages, water and wastewater treatment.

The fluid being transferred is confined within a reinforced internal hose located within the pump housing. The pumping action occurs when the pump roller glides over and compresses the internal hose, creating pressure which forces fluid out. Once the roller passes, the internal hose returns to the uncompressed state, creating a vacuum which draws fluid in.

The alternation between compression and expansion of the internal hose creates constant rate of displacement. The hose in the only part under wear and its interior part is the only component that contacts the fluid. In the metering of corrosive reagents or for use in processes involving sulphur and cyanide, for example, this minimises downtime related to maintenance, especially in 24/7 continuous processes.

In mining, the Rotho peristaltic pump is usually deployed to transfer abrasive and very acidic sludge and slurries. The pump can become the hub of the production process, the core of the plant involving the movement of viscous or abrasive fluids, often with high solid contents that only the Rotho peristaltic pump can transfer without clogging tubes or blockages to clear. This results in maximised and smooth processing.

“When pumping these highly aggressive high-temperature components with suspended solid contents, the Rotho peristaltic pump offers unrivalled performance, as it has no valves, seals or glands that can clog or become obstructed,” says O’Neill.

Furthermore, its superior suction capability of pulling vacuum lifts from 9,8 m, plugs transfer problems often encountered when employing other types of pumps. Additionally, the Rotho can actually run dry, without the tube burning or deteriorating in any way.

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