The technical advancement 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 functions 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, permitting mines to conserve water. The energy effectivity of pipeline transportation also helps reduce power prices and reduces mines’ carbon footprint.
“The foundation of GEHO pumps’ success is our ongoing consideration to technical innovation and enchancment,” says Vlot. “This additionally allowed us to be pioneers within 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 capability, GEHO® pumps transport bauxite or iron ore over lots of of kilometres, offering one of the value effective and sustainable transfer methods obtainable to the mining business. These pumps have additionally performed an integral position within the success of a Weir Minerals paste solution at Finland’s largest open pit mine. Yara’s Siilinjärvi mine makes use of GEHO® pumps to maneuver tailings from the plant, reaching the necessary seashore slope on its tailings facility to satisfy its life-of-mine technique.
Backfilling is a crucial methodology for mining to achieve security and environmental targets, 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 worked out areas.
In the context of deep mines, GEHO® pumps present an environment friendly and reliable means of dewatering from nice depths, instead of using a quantity of smaller pumps to switch water to surface. The highly effective GEHO® pump vary can do this by pumping from the underside of a mine to the floor in only one raise – even over kilometres.
“Apart from the cost effectiveness of this resolution, an important benefit is that it reduces the chance of 1 pump in a pumping chain failing, and disrupting the complete dewatering perform,” he says. “It additionally reduces the cost and upkeep necessities of having a quantity of pumping stations at completely different ranges within the mine.”
The status of GEHO® pumps has also been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing research and improvement into its pumps’ put on components. This process is predicated on an in-depth understanding of the entire pumping system in which the pump operates.
“Taking into consideration how our pumps interact with these systems, we focus on key elements of the pumps such because the diaphragm and propelling liquid system,” he says. The propelling liquid provides the barrier between the piston and the diaphragm ensuring that all the shifting parts transfer in oil and not slurry.
He emphasises the importance of diaphragm dynamics and the necessity to control the amount of propelling liquid in the chamber. This is done via the PLC control, to make sure that the diaphragm runs in the best position.
“Rubber is nice at bending, but when it stretches it could possibly tear,” he says. “Our aim is to extend the replacement intervals between diaphragm replacements, helping mines to reduce both their downtime and their whole cost of possession.”
The monitoring of GEHO® pumps’ operation is carried out 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 clients, 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 surface from deep in a mine – as a less expensive choice to conventional hoisting methods.
pressure gauge ลม to all our GEHO pump options is the Weir Minerals’ global service network, ensuring that wherever our pumps are operating there shall be an experienced native service crew to assist them,” he concludes.