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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 numerous pumping functions 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, permitting mines to preserve water. The energy effectivity of pipeline transportation also helps cut vitality costs and reduces mines’ carbon footprint.
“The basis of GEHO pumps’ success is our ongoing attention to technical innovation and improvement,” says Vlot. “This also allowed us to be pioneers in the pumping of very acidic material at excessive temperatures, similar to nickel slurry at greater than 200°C at a mine in Madagascar.”
With their high capacity, GEHO® pumps transport bauxite or iron ore over hundreds of kilometres, offering one of the most price efficient and sustainable switch methods obtainable to the mining business. These pumps have also played an integral function within the success of a Weir Minerals paste resolution at Finland’s largest open pit mine. Yara’s Siilinjärvi mine makes use of GEHO® pumps to move tailings from the plant, attaining the required seaside slope on its tailings facility to fulfill its life-of-mine strategy.
Backfilling is a crucial method for mining to achieve security and environmental goals, 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 material – measuring 70% solids by weight – back into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps provide an efficient and dependable way of dewatering from nice depths, instead of using multiple smaller pumps to transfer water to surface. The powerful GEHO® pump range can do this by pumping from the underside of a mine to the floor in just one lift – even over kilometres.
“Apart from the cost effectiveness of this resolution, an necessary advantage is that it reduces the chance of 1 pump in a pumping chain failing, and disrupting the complete dewatering operate,” he says. “It also reduces the cost and maintenance necessities of getting multiple pumping stations at completely different levels throughout the mine.”
เกจวัดแรงดันน้ำดิจิตอล of GEHO® pumps has also been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and growth into its pumps’ wear components. This course of is predicated on an in-depth understanding of the whole pumping system in which the pump operates.
“Taking into consideration how our pumps work together with these systems, we focus on key elements of the pumps such because the diaphragm and propelling liquid system,” he says. The propelling liquid supplies the barrier between the piston and the diaphragm guaranteeing that all the shifting components 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 through the PLC management, to make certain that the diaphragm runs in the best place.
“Rubber is good at bending, but when it stretches it could tear,” he says. “Our goal is to increase the replacement intervals between diaphragm replacements, serving to mines to minimize 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 stay abreast – in real time – of the pump’s efficiency and condition. Weir Minerals’ digital layer for these pumps is being rolled out to customers, informing the upkeep schedules and enhancing pump availability.
Vlot notes that Weir Minerals continues to innovate with the GEHO® pump vary, and is even exploring potentialities for transferring coarse ore to the floor from deep in a mine – as a more cost effective option to traditional hoisting strategies.
“Vital to all our GEHO pump solutions is the Weir Minerals’ international service network, guaranteeing that wherever our pumps are operating there might be an skilled local service crew to assist them,” he concludes.
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