Weir Minerals Africa : Pumping innovation underpins GEHO success

The technical development of Weir Minerals’ GEHO® positive displacement pumps has ensured they play a key position in lowering mines’ environmental footprint.
The GEHO® pump range is well-known in various pumping purposes including tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® optimistic displacement (PD) pumps, Erik Vlot, highlights the pumps’ capability to pump highly viscous slurry, allowing mines to preserve water. The vitality efficiency of pipeline transportation also helps cut power prices 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 materials at excessive temperatures, such as nickel slurry at greater than 200°C at a mine in Madagascar.”

With their high capacity, GEHO® pumps transport bauxite or iron ore over lots of of kilometres, providing some of the price efficient and sustainable switch strategies out there to the mining industry. These pumps have additionally played an integral position 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, attaining the necessary seashore slope on its tailings facility to fulfill its life-of-mine strategy.
เกจวัดแรงดันไฮดรอลิค 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 material – measuring 70% solids by weight – back into the mine’s worked out areas.
In the context of deep mines, GEHO® pumps present an environment friendly and reliable way of dewatering from nice depths, as an alternative of using multiple smaller pumps to transfer water to surface. The powerful GEHO® pump vary can do this by pumping from the underside of a mine to the floor in just one lift – even over kilometres.
“Apart from the price effectiveness of this solution, an important advantage is that it reduces the risk of one pump in a pumping chain failing, and disrupting the complete dewatering perform,” he says. “It also reduces the fee and upkeep necessities of having a quantity of pumping stations at totally different ranges inside the mine.”

The status of GEHO® pumps has also been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing research and growth into its pumps’ wear parts. This process is based on an in-depth understanding of the entire pumping system by which the pump operates.
“Taking into account how our pumps interact with these methods, we focus on 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 ensuring that every one the transferring components move in oil and not slurry.
He emphasises the significance 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 good at bending, but when it stretches it could tear,” he says. “Our aim is to increase the alternative intervals between diaphragm replacements, helping mines to scale back both their downtime and their complete cost of possession.”

The monitoring of GEHO® pumps’ operation is carried out via digital know-how so that operators can stay abreast – in real time – of the pump’s performance 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 prospects for transferring coarse ore to the floor from deep in a mine – as a more economical option to traditional hoisting strategies.
“Vital to all our GEHO pump solutions is the Weir Minerals’ global service community, ensuring that wherever our pumps are working there will be an skilled native service crew to support them,” he concludes.
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