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The technical advancement of Weir Minerals’ GEHO® positive displacement pumps has ensured they play a key role in decreasing mines’ environmental footprint.
The GEHO® pump vary is well-known in various 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’ ability to pump extremely viscous slurry, allowing mines to preserve water. The energy efficiency of pipeline transportation also helps minimize vitality prices and reduces mines’ carbon footprint.
“The basis of GEHO pumps’ success is our ongoing consideration to technical innovation and enchancment,” says Vlot. “This additionally allowed us to be pioneers in the pumping of very acidic material at excessive temperatures, corresponding to nickel slurry at more than 200°C at a mine in Madagascar.”
With their high capacity, GEHO® pumps transport bauxite or iron ore over hundreds of kilometres, providing one of the most price efficient and sustainable transfer methods obtainable to the mining business. These pumps have also performed an integral role 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, attaining the mandatory seashore slope on its tailings facility to satisfy its life-of-mine technique.
Backfilling is an important technique for mining to realize safety 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 materials – measuring 70% solids by weight – back into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps present an environment friendly and reliable method of dewatering from great depths, instead of utilizing multiple smaller pumps to switch water to surface. The powerful GEHO® pump vary can do this by pumping from the underside of a mine to the surface in only one raise – 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 entire dewatering function,” he says. “It additionally reduces the cost and maintenance requirements of having a quantity of pumping stations at 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 analysis and growth into its pumps’ put on parts. This process relies on an in-depth understanding of the entire pumping system during which the pump operates.
“Taking into account how our pumps work together with these systems, we focus on key aspects 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 every one the transferring parts move in oil and not slurry.
pressure gauge trerice ราคา emphasises the importance of diaphragm dynamics and the need to control the quantity of propelling liquid in the chamber. This is completed through the PLC management, to ensure that the diaphragm runs in the best position.
“Rubber is good at bending, but when it stretches it may possibly tear,” he says. “Our aim is to increase the replacement intervals between diaphragm replacements, helping mines to scale back each their downtime and their complete cost of ownership.”
The monitoring of GEHO® pumps’ operation is conducted via 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 customers, informing the upkeep 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 less expensive choice to conventional 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 skilled native service crew to help them,” he concludes.
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