The technical development of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key position in decreasing mines’ environmental footprint.
The GEHO® pump vary is well known in varied 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’ capability to pump extremely viscous slurry, allowing mines to conserve water. The energy efficiency of pipeline transportation additionally helps cut energy costs and reduces mines’ carbon footprint.
“ เกจวัดแรงดันแก๊สco2 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 high temperatures, similar 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 tons of of kilometres, providing one of the most value efficient and sustainable switch methods out there to the mining trade. 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 move tailings from the plant, attaining the mandatory seaside slope on its tailings facility to meet its life-of-mine strategy.
Backfilling is a vital technique for mining to attain 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 labored out areas.
In the context of deep mines, GEHO® pumps provide an efficient and reliable method of dewatering from great depths, as an alternative of using a number of smaller pumps to transfer water to surface. The powerful GEHO® pump range can do that by pumping from the bottom of a mine to the surface in only one lift – even over kilometres.
“Apart from the cost effectiveness of this resolution, an necessary advantage is that it reduces the chance of one pump in a pumping chain failing, and disrupting the complete dewatering function,” he says. “It additionally reduces the cost and upkeep requirements of getting multiple pumping stations at totally different ranges inside the mine.”
The popularity of GEHO® pumps has also been built on their reliability, he explains. This has resulted from Weir Minerals’ ongoing research and development into its pumps’ wear components. This course of is predicated on an in-depth understanding of the whole pumping system in which the pump operates.
“Taking into consideration how our pumps interact with these methods, we give consideration to 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 ensuring that every one the moving components transfer in oil and never slurry.
He emphasises the importance of diaphragm dynamics and the want to control the volume of propelling liquid in the chamber. This is finished via the PLC control, to make certain that the diaphragm runs in the best position.
“Rubber is good at bending, but when it stretches it may possibly tear,” he says. “Our purpose is to extend the substitute intervals between diaphragm replacements, helping mines to reduce each their downtime and their complete price of possession.”
The monitoring of GEHO® pumps’ operation is conducted via digital expertise in order that operators can keep abreast – in real time – of the pump’s performance and condition. Weir Minerals’ digital layer for these pumps is being rolled out to customers, 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 more economical option to traditional hoisting methods.
“Vital to all our GEHO pump options is the Weir Minerals’ international service community, making certain that wherever our pumps are operating there might be an experienced native service crew to assist them,” he concludes.