The technical advancement of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key position in lowering mines’ environmental footprint.
The GEHO® pump range is well-known in various pumping functions together with tailings, backfill, ore transportation and dewatering. เกจวัดแรงดันไทวัสดุ for GEHO® positive displacement (PD) pumps, Erik Vlot, highlights the pumps’ capacity to pump highly viscous slurry, permitting mines to preserve water. The power efficiency of pipeline transportation additionally helps minimize vitality 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 materials at high temperatures, corresponding to nickel slurry at greater than 200°C at a mine in Madagascar.”
With their excessive capacity, GEHO® pumps transport bauxite or iron ore over hundreds of kilometres, offering some of the price efficient and sustainable transfer methods obtainable to the mining industry. These pumps have additionally played an integral position within the success of a Weir Minerals paste resolution at Finland’s largest open pit mine. Yara’s Siilinjärvi mine uses GEHO® pumps to move tailings from the plant, attaining the mandatory beach slope on its tailings facility to meet its life-of-mine technique.
Backfilling is a vital technique for mining to achieve 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 material – measuring 70% solids by weight – back into the mine’s worked out areas.
In the context of deep mines, GEHO® pumps provide an efficient and dependable means of dewatering from nice depths, as a substitute of utilizing a quantity of 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 floor in just one carry – even over kilometres.
“Apart from the cost effectiveness of this answer, an important benefit is that it reduces the danger of one pump in a pumping chain failing, and disrupting the complete dewatering perform,” he says. “It additionally reduces the cost and maintenance requirements of getting a quantity of 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 growth into its pumps’ put on elements. 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 concentrate on key features of the pumps such because the diaphragm and propelling liquid system,” he says. The propelling liquid supplies the barrier between the piston and the diaphragm guaranteeing that all the shifting components move in oil and not slurry.
He emphasises the importance of diaphragm dynamics and the need to management the amount of propelling liquid within the chamber. This is completed via the PLC control, to ensure that the diaphragm runs in the right place.
“Rubber is nice at bending, but if it stretches it could tear,” he says. “Our goal is to increase the substitute intervals between diaphragm replacements, helping mines to scale back both their downtime and their total value of possession.”
The monitoring of GEHO® pumps’ operation is carried out by way of 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 range, and is even exploring prospects for transferring coarse ore to the floor from deep in a mine – as a more economical choice to traditional hoisting strategies.
“Vital to all our GEHO pump options is the Weir Minerals’ global service community, ensuring that wherever our pumps are working there shall be an skilled local service crew to help them,” he concludes.
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