Weir Minerals Africa : Pumping innovation underpins GEHO success

The technical advancement of Weir Minerals’ GEHO® optimistic displacement pumps has ensured they play a key function in decreasing mines’ environmental footprint.
The GEHO® pump range is well-known in varied pumping applications including tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® optimistic displacement (PD) pumps, Erik Vlot, highlights the pumps’ capacity to pump highly viscous slurry, permitting mines to conserve water. The power effectivity of pipeline transportation also helps minimize energy costs and reduces mines’ carbon footprint.
เกจวัดแรงดันถังลม of GEHO pumps’ success is our ongoing consideration to technical innovation and improvement,” says Vlot. “This also allowed us to be pioneers in the pumping of very acidic material at high temperatures, corresponding to nickel slurry at more than 200°C at a mine in Madagascar.”
With their high capacity, GEHO® pumps transport bauxite or iron ore over tons of of kilometres, offering some of the cost efficient and sustainable switch strategies available to the mining trade. These pumps have additionally performed an integral role in 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, achieving the required seashore slope on its tailings facility to meet its life-of-mine technique.
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 labored out areas.
In the context of deep mines, GEHO® pumps provide an efficient and reliable way of dewatering from great depths, as an alternative of utilizing multiple smaller pumps to transfer water to floor. The highly effective GEHO® pump vary can do this by pumping from the bottom of a mine to the floor in just one raise – even over kilometres.
“Apart from the cost effectiveness of this solution, an essential advantage is that it reduces the risk of one pump in a pumping chain failing, and disrupting the whole dewatering perform,” he says. “It also reduces the fee and upkeep requirements of getting multiple pumping stations at different levels within the mine.”
The reputation of GEHO® pumps has additionally been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and development into its pumps’ wear components. This process relies on an in-depth understanding of the entire pumping system in which the pump operates.
“Taking under consideration how our pumps work together with these techniques, we give attention to key elements of the pumps such because the diaphragm and propelling liquid system,” he says. The propelling liquid offers the barrier between the piston and the diaphragm making certain that all the transferring components move in oil and not slurry.
He emphasises the significance of diaphragm dynamics and the necessity to management the amount of propelling liquid in the chamber. This is finished by way of the PLC management, to guarantee that the diaphragm runs in the best position.
“Rubber is nice at bending, but if it stretches it could possibly tear,” he says. “Our goal is to increase the substitute 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 by way of digital technology so that operators can stay abreast – in actual time – of the pump’s efficiency and condition. 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 potentialities for transferring coarse ore to the surface from deep in a mine – as a more economical option to conventional hoisting methods.
“Vital to all our GEHO pump solutions is the Weir Minerals’ world service community, guaranteeing that wherever our pumps are operating there will be an skilled native service crew to help them,” he concludes.
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