เกจวัดความดันpressuregauge 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 together with tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® optimistic displacement (PD) pumps, Erik Vlot, highlights the pumps’ capacity to pump extremely viscous slurry, allowing mines to conserve water. The power efficiency of pipeline transportation additionally helps minimize 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 within the pumping of very acidic materials 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 tons of of kilometres, offering one of the most value efficient and sustainable transfer strategies obtainable to the mining business. These pumps 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 makes use of GEHO® pumps to move tailings from the plant, achieving the mandatory beach slope on its tailings facility to fulfill its life-of-mine strategy.
Backfilling is a crucial methodology for mining to realize security and environmental goals, 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 efficient and dependable method of dewatering from nice depths, as a substitute of using multiple smaller pumps to transfer 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 raise – even over kilometres.
“Apart from the fee effectiveness of this answer, an essential benefit is that it reduces the risk of 1 pump in a pumping chain failing, and disrupting the complete dewatering function,” he says. “It additionally reduces the price and maintenance necessities of getting multiple pumping stations at completely different levels inside the mine.”
The reputation of GEHO® pumps has additionally been built 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 entire pumping system by which the pump operates.
“Taking into account how our pumps work together with these systems, we give attention to key aspects of the pumps such as the diaphragm and propelling liquid system,” he says. The propelling liquid supplies the barrier between the piston and the diaphragm guaranteeing that every one the transferring parts transfer in oil and never slurry.
He emphasises the importance of diaphragm dynamics and the want to control the quantity of propelling liquid within the chamber. This is done via the PLC control, to make sure that the diaphragm runs in the best position.
“Rubber is sweet at bending, but when it stretches it can tear,” he says. “Our aim is to increase the substitute intervals between diaphragm replacements, serving to mines to reduce both their downtime and their whole cost of possession.”
The monitoring of GEHO® pumps’ operation is performed by way of digital expertise in order that operators can stay abreast – in real time – of the pump’s efficiency 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 possibilities for transferring coarse ore to the floor from deep in a mine – as a more value effective choice to traditional hoisting methods.
“Vital to all our GEHO pump options is the Weir Minerals’ international service network, guaranteeing that wherever our pumps are operating there might be an experienced native service crew to help them,” he concludes.
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