เครื่องวัดแรงดันเกจที่นิยมใช้ of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key function in decreasing 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® constructive displacement (PD) pumps, Erik Vlot, highlights the pumps’ capability to pump highly viscous slurry, permitting mines to conserve water. The power effectivity of pipeline transportation also helps reduce 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 also allowed us to be pioneers in the pumping of very acidic materials at excessive temperatures, corresponding 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 value effective and sustainable transfer strategies out there to the mining industry. These pumps have additionally 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 maneuver tailings from the plant, reaching the required seaside slope on its tailings facility to meet its life-of-mine strategy.
Backfilling is an important 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 materials – measuring 70% solids by weight – again 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, instead of using a quantity of smaller pumps to switch water to floor. The highly effective GEHO® pump range can do that by pumping from the underside of a mine to the surface in just one lift – even over kilometres.
“Apart from the fee effectiveness of this resolution, an important benefit is that it reduces the danger of 1 pump in a pumping chain failing, and disrupting the entire dewatering perform,” he says. “It additionally reduces the cost and upkeep requirements of getting multiple pumping stations at completely different ranges throughout the mine.”
The status of GEHO® pumps has also been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and improvement into its pumps’ wear parts. 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 focus on key features 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 ensuring that every one the moving parts transfer in oil and never slurry.
He emphasises the significance of diaphragm dynamics and the need to management the amount of propelling liquid in the chamber. This is completed via the PLC control, to ensure that the diaphragm runs in the best position.
“Rubber is nice at bending, but if it stretches it may possibly tear,” he says. “Our goal is to increase the substitute intervals between diaphragm replacements, helping mines to cut back each their downtime and their complete value of possession.”
The monitoring of GEHO® pumps’ operation is performed via digital know-how in order that operators can stay 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 maintenance 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 more economical choice to traditional hoisting strategies.
“Vital to all our GEHO pump solutions is the Weir Minerals’ global service community, making certain that wherever our pumps are operating there will be an experienced native service crew to help them,” he concludes.
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