The technical development of Weir Minerals’ GEHO® positive displacement pumps has ensured they play a key function in lowering mines’ environmental footprint.
The GEHO® pump range is well-known in numerous pumping purposes including tailings, backfill, ore transportation and dewatering. Weir Minerals Global Product Manager for GEHO® optimistic displacement (PD) pumps, Erik Vlot, highlights the pumps’ ability to pump highly viscous slurry, permitting mines to preserve water. The energy effectivity of pipeline transportation also helps reduce power costs and reduces mines’ carbon footprint.
“The basis of GEHO pumps’ success is our ongoing consideration to technical innovation and enchancment,” says Vlot. “This additionally allowed us to be pioneers in 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 excessive capacity, GEHO® pumps transport bauxite or iron ore over hundreds of kilometres, providing one of the value efficient and sustainable switch strategies available to the mining industry. These pumps have also performed an integral role in the success of a Weir Minerals paste answer at Finland’s largest open pit mine. Yara’s Siilinjärvi mine uses GEHO® pumps to maneuver tailings from the plant, achieving the mandatory beach slope on its tailings facility to fulfill its life-of-mine strategy.
Backfilling is an important methodology for mining to attain safety and environmental objectives, 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 material – measuring 70% solids by weight – back into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps present an environment friendly and dependable method of dewatering from nice depths, as an alternative of utilizing a quantity of smaller pumps to transfer water to floor. The highly effective GEHO® pump vary can do this by pumping from the underside of a mine to the surface in just one raise – even over kilometres.
“Apart from the fee effectiveness of this resolution, an necessary advantage is that it reduces the chance of one pump in a pumping chain failing, and disrupting the whole dewatering function,” he says. “It additionally reduces the price and maintenance necessities of having multiple pumping stations at completely different levels within the mine.”
The reputation of GEHO® pumps has also been built on their reliability, he explains. This has resulted from Weir Minerals’ ongoing research and improvement into its pumps’ put on parts. เกจวัดแรงดัน of relies on an in-depth understanding of the whole pumping system by which the pump operates.
“Taking into consideration how our pumps work together with these systems, we concentrate 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 making certain that each one the shifting elements transfer in oil and not slurry.
He emphasises the significance of diaphragm dynamics and the need to control the volume of propelling liquid in the chamber. This is done via the PLC management, to ensure that the diaphragm runs in the best position.
“Rubber is good at bending, but when it stretches it can tear,” he says. “Our goal is to extend the alternative intervals between diaphragm replacements, helping mines to cut back each their downtime and their complete value of ownership.”
The monitoring of GEHO® pumps’ operation is performed by way of digital technology so that operators can stay abreast – in real 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 vary, and is even exploring prospects for transferring coarse ore to the floor from deep in a mine – as a more value effective choice to traditional hoisting methods.
“Vital to all our GEHO pump solutions is the Weir Minerals’ international service community, making certain that wherever our pumps are operating there might be an skilled local service crew to help them,” he concludes.