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The technical advancement of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key role in reducing mines’ environmental footprint.
The GEHO® pump range is well known in various pumping applications including tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® constructive displacement (PD) pumps, Erik Vlot, highlights the pumps’ capacity to pump extremely viscous slurry, allowing mines to conserve water. The vitality effectivity of pipeline transportation also helps reduce energy costs and reduces mines’ carbon footprint.
“The basis of GEHO pumps’ success is our ongoing consideration to technical innovation and enchancment,” says Vlot. “This also allowed us to be pioneers within the pumping of very acidic materials at high temperatures, such as nickel slurry at more than 200°C at a mine in Madagascar.”

With their excessive capacity, GEHO® pumps transport bauxite or iron ore over hundreds of kilometres, offering one of the price effective and sustainable transfer strategies out there to the mining trade. เพรสเชอร์เกจ have additionally played an integral function within the success of a Weir Minerals paste solution at Finland’s largest open pit mine. Yara’s Siilinjärvi mine makes use of GEHO® pumps to maneuver tailings from the plant, attaining the mandatory seashore slope on its tailings facility to meet its life-of-mine strategy.
Backfilling is a vital technique for mining to achieve security and environmental goals, and GEHO® pumps have been enabling this work. In a North American platinum operation, the gear pumps over a thousand litres a minute of this viscous backfill material – measuring 70% solids by weight – back into the mine’s worked out areas.
In the context of deep mines, GEHO® pumps present an environment friendly and dependable way of dewatering from great depths, as an alternative of using a quantity of smaller pumps to switch water to surface. The highly effective GEHO® pump range can do this by pumping from the underside of a mine to the surface in only one lift – even over kilometres.
“Apart from the fee effectiveness of this resolution, an necessary benefit is that it reduces the risk of one pump in a pumping chain failing, and disrupting the whole dewatering operate,” he says. “It also reduces the fee and maintenance requirements of having a number of pumping stations at different ranges within the mine.”

The reputation of GEHO® pumps has also been built on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and growth into its pumps’ wear parts. This course of is based on an in-depth understanding of the entire pumping system by which the pump operates.
“Taking under consideration how our pumps work together with these systems, we give attention to key aspects of the pumps such because the diaphragm and propelling liquid system,” he says. The propelling liquid provides the barrier between the piston and the diaphragm guaranteeing that every one the shifting parts transfer in oil and not slurry.
He emphasises the significance of diaphragm dynamics and the need to management the quantity of propelling liquid in the chamber. This is finished via the PLC control, to ensure that the diaphragm runs in the proper place.
“Rubber is sweet at bending, but if it stretches it could tear,” he says. “Our goal is to extend the alternative intervals between diaphragm replacements, helping mines to reduce both their downtime and their total value of ownership.”

The monitoring of GEHO® pumps’ operation is performed via digital technology so that operators can stay abreast – in real time – of the pump’s performance and situation. Weir Minerals’ digital layer for these pumps is being rolled out to customers, informing the upkeep schedules and enhancing pump availability.
Vlot notes that Weir Minerals continues to innovate with the GEHO® pump vary, and is even exploring possibilities for transferring coarse ore to the floor from deep in a mine – as a more price effective choice to conventional hoisting methods.
“Vital to all our GEHO pump options is the Weir Minerals’ international service network, ensuring that wherever our pumps are working there will be an skilled native service crew to assist them,” he concludes.
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