The technical development of Weir Minerals’ GEHO® optimistic displacement pumps has ensured they play a key position in reducing mines’ environmental footprint.
The GEHO® pump vary is well-known in various pumping applications including tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® constructive displacement (PD) pumps, Erik Vlot, highlights the pumps’ capacity to pump extremely viscous slurry, allowing mines to conserve water. The energy effectivity of pipeline transportation also helps cut energy costs and reduces mines’ carbon footprint.
“The basis of GEHO pumps’ success is our ongoing attention to technical innovation and enchancment,” says Vlot. “This also 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 capability, GEHO® pumps transport bauxite or iron ore over hundreds of kilometres, providing one of the most price effective and sustainable switch strategies out there to the mining business. These pumps have also played 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, achieving the required beach slope on its tailings facility to satisfy its life-of-mine technique.
Backfilling is a vital method for mining to achieve safety and environmental objectives, and GEHO® pumps have been enabling this work. In เกจวัดอาร์กอน , the equipment 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, as a substitute of using 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 floor in just one carry – even over kilometres.
“Apart from the cost effectiveness of this resolution, an essential advantage is that it reduces the danger of one pump in a pumping chain failing, and disrupting the entire dewatering operate,” he says. “It additionally reduces the price and maintenance necessities of getting multiple pumping stations at totally different ranges throughout 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 improvement into its pumps’ wear parts. This course of relies on an in-depth understanding of the entire pumping system by which the pump operates.
“Taking into account how our pumps work together with these techniques, we concentrate on key features of the pumps such because the diaphragm and propelling liquid system,” he says. The propelling liquid provides the barrier between the piston and the diaphragm making certain that all the transferring elements move in oil and never slurry.
He emphasises the significance of diaphragm dynamics and the necessity to management the volume of propelling liquid within the chamber. This is finished by way of the PLC management, to guarantee that the diaphragm runs in the best place.
“Rubber is sweet at bending, but when it stretches it could tear,” he says. “Our aim is to extend the substitute intervals between diaphragm replacements, serving to mines to cut back both their downtime and their whole price of possession.”
The monitoring of GEHO® pumps’ operation is performed through digital know-how in order that operators can keep abreast – in actual time – of the pump’s performance and situation. Weir Minerals’ digital layer for these pumps is being rolled out to prospects, 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 surface from deep in a mine – as a more economical choice to conventional hoisting methods.
“Vital to all our GEHO pump solutions is the Weir Minerals’ world service community, ensuring that wherever our pumps are working there will be an skilled local service crew to support them,” he concludes.