The technical development of Weir Minerals’ GEHO® positive displacement pumps has ensured they play a key function in decreasing mines’ environmental footprint.
The GEHO® pump range is well-known in various pumping applications including tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® constructive displacement (PD) pumps, Erik Vlot, highlights the pumps’ ability to pump extremely viscous slurry, allowing mines to conserve water. pressure gauge octa of pipeline transportation also helps cut energy 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 more 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 some of the price effective and sustainable transfer methods obtainable to the mining trade. These pumps have also performed an integral role 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 move tailings from the plant, attaining the mandatory seaside slope on its tailings facility to satisfy its life-of-mine technique.
Backfilling is an important method for mining to attain security 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 materials – measuring 70% solids by weight – again into the mine’s worked out areas.
In the context of deep mines, GEHO® pumps provide an environment friendly and reliable way of dewatering from nice depths, instead of utilizing multiple smaller pumps to transfer 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 solution, an important benefit is that it reduces the danger of 1 pump in a pumping chain failing, and disrupting the complete dewatering operate,” he says. “It additionally reduces the price and upkeep requirements of having a quantity of pumping stations at completely different ranges throughout the mine.”
The popularity of GEHO® pumps has also been built on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and improvement into its pumps’ put on components. This process is predicated on an in-depth understanding of the entire pumping system by which the pump operates.
“Taking into consideration how our pumps interact with these systems, we concentrate on key features of the pumps such as the diaphragm and propelling liquid system,” he says. The propelling liquid offers the barrier between the piston and the diaphragm guaranteeing that each one the transferring parts move in oil and not slurry.
He emphasises the importance of diaphragm dynamics and the want to control the volume of propelling liquid within the chamber. This is finished via the PLC control, to make sure that the diaphragm runs in the best place.
“Rubber is sweet at bending, but when it stretches it could tear,” he says. “Our aim is to increase the alternative intervals between diaphragm replacements, serving to mines to reduce each their downtime and their total cost of possession.”
The monitoring of GEHO® pumps’ operation is performed through digital expertise so that operators can keep abreast – in actual time – of the pump’s efficiency and situation. Weir Minerals’ digital layer for these pumps is being rolled out to prospects, 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 possibilities for transferring coarse ore to the floor 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’ global service network, making certain that wherever our pumps are operating there will be an experienced local service crew to help them,” he concludes.