Weir Minerals Africa : Pumping innovation underpins GEHO success

The technical development of Weir Minerals’ GEHO® positive displacement pumps has ensured they play a key function in reducing mines’ environmental footprint.
The GEHO® pump vary is well known in various pumping functions together with tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® optimistic displacement (PD) pumps, Erik Vlot, highlights the pumps’ ability to pump highly viscous slurry, allowing mines to preserve water. The vitality effectivity of pipeline transportation additionally helps cut power prices and reduces mines’ carbon footprint.
“The foundation of GEHO pumps’ success is our ongoing consideration to technical innovation and improvement,” says Vlot. “This also allowed us to be pioneers within the pumping of very acidic material at high temperatures, similar to nickel slurry at greater than 200°C at a mine in Madagascar.”
With their high capability, GEHO® pumps transport bauxite or iron ore over tons of of kilometres, offering one of the most price effective and sustainable switch strategies out there to the mining industry. These pumps have also played an integral role 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 move tailings from the plant, achieving the necessary seashore slope on its tailings facility to satisfy its life-of-mine technique.
เกจวัดแรงดันน้ำประปา is a vital technique for mining to attain security and environmental objectives, 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 – again 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, instead of using multiple smaller pumps to transfer water to surface. The powerful GEHO® pump vary can do that by pumping from the bottom of a mine to the floor in just one raise – even over kilometres.
“Apart from the price effectiveness of this answer, an necessary advantage is that it reduces the danger of 1 pump in a pumping chain failing, and disrupting the entire dewatering operate,” he says. “It also reduces the cost and upkeep necessities of getting a quantity of pumping stations at different levels 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 improvement into its pumps’ wear parts. This course of is predicated on an in-depth understanding of the whole pumping system by which the pump operates.
“Taking under consideration how our pumps interact with these systems, we give consideration to key aspects of the pumps such as the diaphragm and propelling liquid system,” he says. The propelling liquid supplies the barrier between the piston and the diaphragm making certain that every one the moving parts move in oil and not slurry.
He emphasises the importance of diaphragm dynamics and the necessity to control the volume of propelling liquid within the chamber. This is finished via the PLC management, to ensure that the diaphragm runs in the right position.
“Rubber is nice at bending, but when it stretches it could tear,” he says. “Our aim is to extend the replacement intervals between diaphragm replacements, serving to mines to reduce both their downtime and their whole cost of possession.”
The monitoring of GEHO® pumps’ operation is conducted through digital technology so that operators can stay abreast – in actual time – of the pump’s efficiency and situation. Weir Minerals’ digital layer for these pumps is being rolled out to customers, informing the maintenance schedules and enhancing pump availability.
Vlot notes that Weir Minerals continues to innovate with the GEHO® pump range, and is even exploring potentialities for transferring coarse ore to the floor from deep in a mine – as a more economical choice to conventional hoisting strategies.
“Vital to all our GEHO pump options is the Weir Minerals’ international service network, making certain that wherever our pumps are working there will be an experienced local service crew to support them,” he concludes.
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