The technical advancement of Weir Minerals’ GEHO® positive displacement pumps has ensured they play a key position in lowering mines’ environmental footprint.
The GEHO® pump range is well-known in numerous 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’ ability to pump extremely viscous slurry, permitting mines to conserve water. The power effectivity of pipeline transportation also helps minimize energy costs 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 materials at excessive temperatures, such as nickel slurry at more than 200°C at a mine in Madagascar.”
With their excessive capability, GEHO® pumps transport bauxite or iron ore over lots of of kilometres, providing one of the most price effective and sustainable transfer methods available to the mining business. 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 move tailings from the plant, attaining the necessary seaside slope on its tailings facility to meet its life-of-mine strategy.
Backfilling is a crucial method for mining to realize safety 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 – again into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps present an environment friendly and dependable means of dewatering from nice depths, instead of utilizing multiple smaller pumps to switch water to surface. The highly effective GEHO® pump range can do that by pumping from the bottom of a mine to the surface in only one raise – even over kilometres.
“Apart from the cost effectiveness of this resolution, an important advantage is that it reduces the chance of 1 pump in a pumping chain failing, and disrupting the whole dewatering function,” he says. “It additionally reduces the price and upkeep necessities of getting multiple pumping stations at different levels within the mine.”
The popularity of GEHO® pumps has additionally been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing research and improvement into its pumps’ put on elements. This process is predicated on an in-depth understanding of the whole pumping system by which the pump operates.
“Taking into account how our pumps work together with these methods, we focus on key aspects 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 all the shifting components transfer in oil and not slurry.
เกจวัดอาร์กอน emphasises the significance of diaphragm dynamics and the necessity to control the quantity of propelling liquid within the chamber. This is done by way of the PLC management, to ensure that the diaphragm runs in the best place.
“Rubber is sweet at bending, but if it stretches it might possibly tear,” he says. “Our purpose is to increase the substitute intervals between diaphragm replacements, helping mines to reduce both their downtime and their total value of ownership.”
The monitoring of GEHO® pumps’ operation is conducted by way of digital technology 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 maintenance 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 less expensive choice to traditional hoisting strategies.
“Vital to all our GEHO pump options is the Weir Minerals’ world service network, making certain that wherever our pumps are working there will be an skilled native service crew to support them,” he concludes.