Weir Minerals Africa : Pumping innovation underpins GEHO success

The technical advancement of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key role in decreasing mines’ environmental footprint.
เกจวัดแรงดันอากาศ is well-known in various pumping purposes including 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 extremely viscous slurry, allowing mines to preserve water. The energy efficiency of pipeline transportation additionally helps minimize energy costs and reduces mines’ carbon footprint.
“The foundation of GEHO pumps’ success is our ongoing consideration to technical innovation and improvement,” says Vlot. “This also allowed us to be pioneers in the pumping of very acidic materials at high temperatures, corresponding to nickel slurry at greater than 200°C at a mine in Madagascar.”
With their high capability, GEHO® pumps transport bauxite or iron ore over hundreds of kilometres, providing some of the value effective and sustainable switch methods available to the mining trade. These pumps have also performed 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, achieving the necessary seashore slope on its tailings facility to fulfill its life-of-mine strategy.
Backfilling is a crucial method for mining to achieve security and environmental objectives, 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 method of dewatering from great depths, as an alternative of using multiple smaller pumps to transfer water to surface. The powerful GEHO® pump range 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 essential advantage is that it reduces the risk of one pump in a pumping chain failing, and disrupting the entire dewatering operate,” he says. “It also reduces the price and maintenance necessities of getting a quantity of pumping stations at completely different levels throughout the mine.”
The reputation 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 parts. This process is predicated on an in-depth understanding of the entire pumping system by which the pump operates.
“Taking into account how our pumps interact with these techniques, we focus on key elements 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 ensuring that every one the shifting components transfer in oil and never slurry.
He emphasises the significance of diaphragm dynamics and the necessity to management the amount of propelling liquid within the chamber. This is done through the PLC control, to ensure that the diaphragm runs in the right position.
“Rubber is sweet at bending, but when it stretches it can tear,” he says. “Our purpose is to extend the alternative intervals between diaphragm replacements, helping mines to cut back both their downtime and their total cost of possession.”
The monitoring of GEHO® pumps’ operation is performed through digital expertise so that operators can stay abreast – in real 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 possibilities for transferring coarse ore to the floor from deep in a mine – as a more cost effective 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 operating there will be an skilled native service crew to assist them,” he concludes.

Leave a Comment