Weir Minerals Africa : Pumping innovation underpins GEHO success

The technical development of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key position in reducing mines’ environmental footprint.
The GEHO® pump range is well known in various pumping functions together with tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® constructive displacement (PD) pumps, Erik Vlot, highlights the pumps’ capability to pump highly viscous slurry, allowing mines to conserve water. The energy effectivity of pipeline transportation additionally helps reduce power costs and reduces mines’ carbon footprint.
“The foundation of GEHO pumps’ success is our ongoing attention to technical innovation and improvement,” says Vlot. “This additionally 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 excessive capacity, GEHO® pumps transport bauxite or iron ore over lots of of kilometres, offering some of the price efficient and sustainable transfer methods obtainable to the mining business. These pumps 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 uses GEHO® pumps to move tailings from the plant, achieving the mandatory seashore slope on its tailings facility to satisfy its life-of-mine technique.
Backfilling is a vital technique for mining to realize security 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 materials – measuring 70% solids by weight – back into the mine’s worked out areas.
In the context of deep mines, GEHO® pumps provide an environment friendly and dependable method of dewatering from nice depths, instead of utilizing a number of smaller pumps to switch water to surface. The powerful GEHO® pump range can do that by pumping from the underside of a mine to the surface in just one carry – even over kilometres.
“Apart from the fee effectiveness of this resolution, an essential advantage is that it reduces the chance of one pump in a pumping chain failing, and disrupting the complete dewatering operate,” he says. “It additionally reduces the fee and maintenance necessities of getting multiple pumping stations at totally different levels within the mine.”
The popularity 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’ put on parts. เกจวัดแรงดันถังออกซิเจน relies on an in-depth understanding of the whole pumping system by which the pump operates.
“Taking under consideration how our pumps interact with these techniques, we give consideration to key elements of the pumps such as the diaphragm and propelling liquid system,” he says. The propelling liquid offers the barrier between the piston and the diaphragm making certain that each one the moving elements move in oil and not slurry.
He emphasises the significance of diaphragm dynamics and the want to management the volume of propelling liquid in the chamber. This is finished via the PLC control, to ensure that the diaphragm runs in the best position.
“Rubber is good at bending, but if it stretches it can tear,” he says. “Our goal is to extend the replacement intervals between diaphragm replacements, helping mines to scale back each their downtime and their total value of possession.”
The monitoring of GEHO® pumps’ operation is performed via digital technology so that operators can stay abreast – in real time – of the pump’s efficiency and condition. Weir Minerals’ digital layer for these pumps is being rolled out to clients, 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 prospects for transferring coarse ore to the floor from deep in a mine – as a more value effective option to traditional hoisting strategies.
“Vital to all our GEHO pump solutions is the Weir Minerals’ world service community, ensuring that wherever our pumps are operating there shall be an experienced local service crew to assist them,” he concludes.
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