The technical advancement 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 varied pumping functions 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, permitting mines to conserve water. The energy efficiency of pipeline transportation additionally helps minimize vitality costs and reduces mines’ carbon footprint.
“The foundation of GEHO pumps’ success is our ongoing attention to technical innovation and improvement,” says Vlot. “This also allowed us to be pioneers within the pumping of very acidic material at excessive temperatures, corresponding to nickel slurry at greater than 200°C at a mine in Madagascar.”

With their excessive capacity, GEHO® pumps transport bauxite or iron ore over tons of of kilometres, offering one of the most value effective and sustainable switch strategies available to the mining business. pressure gauge 10 bar have additionally performed an integral position in the success of a Weir Minerals paste answer at Finland’s largest open pit mine. Yara’s Siilinjärvi mine uses GEHO® pumps to move tailings from the plant, reaching the necessary beach slope on its tailings facility to meet its life-of-mine technique.
Backfilling is an important technique for mining to achieve safety and environmental targets, 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 present an efficient and dependable method of dewatering from great depths, instead of utilizing multiple smaller pumps to switch water to surface. The powerful GEHO® pump range can do that by pumping from the bottom of a mine to the surface in just one lift – even over kilometres.
“Apart from the cost effectiveness of this solution, an essential benefit is that it reduces the risk of one pump in a pumping chain failing, and disrupting the entire dewatering function,” he says. “It additionally reduces the fee and maintenance necessities of having a quantity of pumping stations at totally different ranges throughout the mine.”

The status of GEHO® pumps has additionally been built on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and development into its pumps’ put on parts. This process is based 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 methods, we give consideration to 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 each one the moving elements transfer in oil and never slurry.
He emphasises the significance of diaphragm dynamics and the need to management the quantity of propelling liquid within the chamber. This is done via the PLC management, to ensure that the diaphragm runs in the best position.
“Rubber is good at bending, but if it stretches it might possibly tear,” he says. “Our purpose is to increase the alternative intervals between diaphragm replacements, serving to mines to reduce each their downtime and their total cost of possession.”

The monitoring of GEHO® pumps’ operation is conducted via digital technology in order that operators can stay abreast – in actual 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 surface from deep in a mine – as a more economical option to conventional hoisting methods.
“Vital to all our GEHO pump options is the Weir Minerals’ global service network, making certain that wherever our pumps are working there shall be an experienced local service crew to assist them,” he concludes.