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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 lowering mines’ environmental footprint.
The GEHO® pump vary is well-known in various pumping applications together with tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® positive displacement (PD) pumps, Erik Vlot, highlights the pumps’ capacity to pump highly viscous slurry, allowing mines to preserve water. The vitality efficiency of pipeline transportation also helps reduce power prices and reduces mines’ carbon footprint.
เกจวัดแรงดันลม of GEHO pumps’ success is our ongoing consideration to technical innovation and enchancment,” says Vlot. “This also allowed us to be pioneers in 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 capability, GEHO® pumps transport bauxite or iron ore over lots of of kilometres, providing some of the value effective and sustainable switch strategies available to the mining business. These pumps have also played an integral role within 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 seaside slope on its tailings facility to meet its life-of-mine technique.
Backfilling is a crucial method for mining to achieve security and environmental targets, 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 materials – measuring 70% solids by weight – again into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps provide an efficient and reliable way of dewatering from nice depths, as an alternative of using a quantity of smaller pumps to transfer water to floor. The powerful GEHO® pump vary can do that by pumping from the bottom of a mine to the floor in only one lift – even over kilometres.
“Apart from the cost effectiveness of this resolution, an essential benefit is that it reduces the chance of 1 pump in a pumping chain failing, and disrupting the entire dewatering perform,” he says. “It also reduces the fee and upkeep requirements of getting a quantity of pumping stations at different ranges throughout the mine.”
The reputation of GEHO® pumps has also been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and improvement into its pumps’ wear elements. This process is predicated 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 techniques, we concentrate on key elements 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 every one the shifting components move in oil and never slurry.
He emphasises the significance of diaphragm dynamics and the want to control the volume of propelling liquid in the chamber. This is done by way of the PLC management, to make certain that the diaphragm runs in the right place.
“Rubber is good at bending, but when it stretches it can tear,” he says. “Our goal is to extend the alternative intervals between diaphragm replacements, helping mines to minimize back both their downtime and their whole price of possession.”
The monitoring of GEHO® pumps’ operation is conducted through digital expertise so that operators can stay abreast – in real time – of the pump’s performance and condition. Weir Minerals’ digital layer for these pumps is being rolled out to clients, 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 possibilities for transferring coarse ore to the floor 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’ global service network, ensuring that wherever our pumps are working there will be an experienced native service crew to support them,” he concludes.
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