The technical development of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key role in decreasing mines’ environmental footprint.
The GEHO® pump vary is well-known in various pumping purposes together with 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 extremely viscous slurry, permitting mines to preserve water. The energy efficiency of pipeline transportation also helps cut power costs and reduces mines’ carbon footprint.
เกจวัดแรงดันไฮดรอลิค of GEHO pumps’ success is our ongoing attention to technical innovation and enchancment,” says Vlot. “This also allowed us to be pioneers in the pumping of very acidic materials at excessive temperatures, similar to nickel slurry at more than 200°C at a mine in Madagascar.”
With their excessive capability, GEHO® pumps transport bauxite or iron ore over hundreds of kilometres, providing one of the price efficient and sustainable switch strategies out there to the mining industry. These pumps have also performed an integral function in the success of a Weir Minerals paste answer at Finland’s largest open pit mine. Yara’s Siilinjärvi mine makes use of GEHO® pumps to maneuver tailings from the plant, reaching the mandatory seashore slope on its tailings facility to meet its life-of-mine technique.
Backfilling is a vital methodology for mining to realize safety and environmental goals, and GEHO® pumps have been enabling this work. In a North American platinum operation, the equipment pumps over a thousand litres a minute of this viscous backfill material – measuring 70% solids by weight – again into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps provide an environment friendly and dependable way of dewatering from nice depths, instead of utilizing multiple smaller pumps to switch water to floor. The powerful GEHO® pump vary can do that by pumping from the underside of a mine to the surface in only one raise – even over kilometres.
“Apart from the fee effectiveness of this solution, an important advantage is that it reduces the danger of one pump in a pumping chain failing, and disrupting the complete dewatering operate,” he says. “It additionally reduces the cost and maintenance requirements of getting multiple pumping stations at completely different ranges inside the mine.”
The popularity of GEHO® pumps has additionally been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing research and development into its pumps’ put on components. 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 as the diaphragm and propelling liquid system,” he says. The propelling liquid offers the barrier between the piston and the diaphragm guaranteeing that all the moving components transfer in oil and not slurry.
He emphasises the significance of diaphragm dynamics and the want to management the volume of propelling liquid within the chamber. This is completed via the PLC management, to make sure that the diaphragm runs in the proper place.
“Rubber is nice at bending, but when it stretches it might possibly tear,” he says. “Our goal is to increase the replacement intervals between diaphragm replacements, serving to mines to reduce back both their downtime and their complete value of possession.”
The monitoring of GEHO® pumps’ operation is conducted via digital expertise so that operators can keep abreast – in actual time – of the pump’s efficiency and situation. 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 vary, and is even exploring possibilities for transferring coarse ore to the floor from deep in a mine – as a more economical choice to traditional hoisting methods.
“Vital to all our GEHO pump options is the Weir Minerals’ international service network, ensuring that wherever our pumps are operating there might be an experienced native service crew to assist them,” he concludes.
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