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The technical development of Weir Minerals’ GEHO® positive displacement pumps has ensured they play a key role in decreasing mines’ environmental footprint.
The GEHO® pump range is well-known in various 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’ capability to pump extremely viscous slurry, allowing mines to preserve water. The power effectivity 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 enchancment,” says Vlot. “This additionally allowed us to be pioneers within the pumping of very acidic material at excessive temperatures, such as nickel slurry at greater than 200°C at a mine in Madagascar.”
With their excessive capability, GEHO® pumps transport bauxite or iron ore over lots of of kilometres, providing some of the price efficient and sustainable switch methods obtainable to the mining trade. These pumps have additionally played an integral role within the success of a Weir Minerals paste solution at Finland’s largest open pit mine. Yara’s Siilinjärvi mine uses GEHO® pumps to move tailings from the plant, achieving the mandatory seaside slope on its tailings facility to fulfill its life-of-mine technique.
Backfilling is an important method for mining to realize safety and environmental targets, 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 – again into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps present an environment friendly and dependable means of dewatering from great depths, as a substitute of using multiple smaller pumps to switch water to floor. The highly effective GEHO® pump range can do that by pumping from the bottom of a mine to the surface in only one raise – even over kilometres.
“Apart from the price effectiveness of this answer, an essential benefit is that it reduces the chance of 1 pump in a pumping chain failing, and disrupting the complete dewatering function,” he says. “It also reduces the cost and upkeep requirements of having multiple pumping stations at totally different ranges throughout the mine.”
ร้านซ่อมเครื่องวัดความดัน of GEHO® pumps has also been built on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and growth into its pumps’ wear components. This process relies on an in-depth understanding of the whole pumping system in which the pump operates.
“Taking under consideration how our pumps work together with these techniques, we concentrate on key aspects of the pumps such because the diaphragm and propelling liquid system,” he says. The propelling liquid offers the barrier between the piston and the diaphragm making certain that every one the transferring elements transfer in oil and not slurry.
He emphasises the importance of diaphragm dynamics and the necessity to management the quantity of propelling liquid in the chamber. This is finished through the PLC management, to ensure that the diaphragm runs in the right position.
“Rubber is nice at bending, but if it stretches it could possibly tear,” he says. “Our aim is to increase the replacement intervals between diaphragm replacements, serving to mines to scale back both their downtime and their total cost of ownership.”
The monitoring of GEHO® pumps’ operation is carried out by way of digital technology so that operators can stay abreast – in actual time – of the pump’s performance and condition. Weir Minerals’ digital layer for these pumps is being rolled out to clients, 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 prospects for transferring coarse ore to the floor from deep in a mine – as a less expensive option to traditional hoisting methods.
“Vital to all our GEHO pump solutions is the Weir Minerals’ international service community, ensuring that wherever our pumps are working there will be an experienced native service crew to help them,” he concludes.
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