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บทความ เกจวัดแรงดัน

Weir Minerals Africa : Pumping innovation underpins GEHO success

The technical advancement of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key function in reducing mines’ environmental footprint.
The GEHO® pump vary is well-known in various pumping functions 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, allowing mines to preserve water. The energy efficiency of pipeline transportation also helps minimize energy costs and reduces mines’ carbon footprint.
“The foundation of GEHO pumps’ success is our ongoing attention 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 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 one of the most cost efficient and sustainable switch strategies out there to the mining industry. These pumps have also played an integral function 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, attaining the mandatory beach slope on its tailings facility to satisfy its life-of-mine technique.
Backfilling is a crucial methodology for mining to achieve safety and environmental objectives, and GEHO® pumps have been enabling this work. In a North American platinum operation, the equipment 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 provide an efficient and reliable way of dewatering from great depths, instead of utilizing a number of smaller pumps to switch water to floor. The powerful GEHO® pump range can do that by pumping from the bottom of a mine to the surface in just one raise – even over kilometres.
“Apart from the fee effectiveness of this answer, an necessary benefit is that it reduces the risk of 1 pump in a pumping chain failing, and disrupting the whole dewatering perform,” he says. “It additionally reduces the cost and maintenance requirements of getting multiple pumping stations at completely different ranges inside the mine.”
The status of GEHO® pumps has additionally been built on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and growth into its pumps’ put on components. This process relies on an in-depth understanding of the entire pumping system during which the pump operates.
“Taking into consideration how our pumps interact with these methods, we concentrate on key features of the pumps such as the diaphragm and propelling liquid system,” he says. The propelling liquid supplies the barrier between the piston and the diaphragm making certain that each one the transferring components transfer in oil and not slurry.
He emphasises the significance of diaphragm dynamics and the want to control the amount of propelling liquid within the chamber. This is done by way of the PLC control, to ensure that the diaphragm runs in the right position.
เกจแรงดันสูง is good at bending, but if it stretches it might possibly tear,” he says. “Our purpose is to extend the replacement intervals between diaphragm replacements, serving to mines to reduce both their downtime and their total price of ownership.”
The monitoring of GEHO® pumps’ operation is performed through digital know-how so 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 prospects, informing the maintenance schedules and enhancing pump availability.
Vlot notes that Weir Minerals continues to innovate with the GEHO® pump range, and is even exploring possibilities for transferring coarse ore to the floor from deep in a mine – as a more economical option to conventional hoisting strategies.
“Vital to all our GEHO pump solutions is the Weir Minerals’ global service community, making certain that wherever our pumps are working there will be an skilled local service crew to assist them,” he concludes.
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