The technical advancement of Weir Minerals’ GEHO® optimistic displacement pumps has ensured they play a key role in decreasing mines’ environmental footprint.
The GEHO® pump range is well-known in varied pumping functions including tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® positive displacement (PD) pumps, Erik Vlot, highlights the pumps’ ability to pump highly viscous slurry, permitting mines to preserve water. The power effectivity of pipeline transportation also helps cut vitality prices and reduces mines’ carbon footprint.
“The foundation of GEHO pumps’ success is our ongoing attention to technical innovation and improvement,” says Vlot. “This also allowed us to be pioneers within the pumping of very acidic material at high temperatures, such as nickel slurry at greater than 200°C at a mine in Madagascar.”

With their high capability, GEHO® pumps transport bauxite or iron ore over lots of of kilometres, offering some of the price effective and sustainable transfer strategies out there to the mining industry. These pumps have also performed an integral position in the success of a Weir Minerals paste resolution at Finland’s largest open pit mine. Yara’s Siilinjärvi mine uses GEHO® pumps to move tailings from the plant, achieving the necessary seashore slope on its tailings facility to satisfy its life-of-mine technique.
pressure gauge octa is a crucial method for mining to realize safety and environmental goals, and GEHO® pumps have been enabling this work. In a North American platinum operation, the tools pumps over a thousand litres a minute of this viscous backfill material – measuring 70% solids by weight – back into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps provide an environment friendly and reliable method of dewatering from great depths, instead of utilizing a number of smaller pumps to transfer water to floor. The powerful GEHO® pump vary can do this by pumping from the underside of a mine to the floor in only one carry – even over kilometres.
“Apart from the price effectiveness of this answer, an necessary benefit is that it reduces the risk of 1 pump in a pumping chain failing, and disrupting the entire dewatering perform,” he says. “It also reduces the fee and maintenance requirements of getting multiple pumping stations at totally different ranges throughout the mine.”

The popularity of GEHO® pumps has additionally been built on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and development into its pumps’ wear parts. This process relies on an in-depth understanding of the entire pumping system in which the pump operates.
“Taking into account how our pumps work together with these methods, we give attention to key features of the pumps such as the diaphragm and propelling liquid system,” he says. The propelling liquid provides the barrier between the piston and the diaphragm making certain that all the shifting parts move in oil and never slurry.
He emphasises the importance of diaphragm dynamics and the need to control the amount of propelling liquid in the chamber. This is finished through the PLC control, to guarantee that the diaphragm runs in the right place.
“Rubber is nice at bending, but when it stretches it can tear,” he says. “Our purpose is to increase the substitute intervals between diaphragm replacements, serving to mines to scale back both their downtime and their whole value of possession.”

The monitoring of GEHO® pumps’ operation is performed by way of digital know-how in order that operators can keep abreast – in actual time – of the pump’s performance and situation. Weir Minerals’ digital layer for these pumps is being rolled out to prospects, informing the upkeep schedules and enhancing pump availability.
Vlot notes that Weir Minerals continues to innovate with the GEHO® pump range, and is even exploring possibilities for transferring coarse ore to the surface from deep in a mine – as a more cost effective choice to traditional hoisting methods.
“Vital to all our GEHO pump solutions is the Weir Minerals’ international service network, making certain that wherever our pumps are working there will be an skilled local service crew to help them,” he concludes.
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