The technical development of Weir Minerals’ GEHO® constructive displacement pumps has ensured they play a key function in decreasing mines’ environmental footprint.
The GEHO® pump vary is well-known in numerous pumping applications together with tailings, backfill, ore transportation and dewatering. ไดอะแฟรม ซีล for GEHO® optimistic displacement (PD) pumps, Erik Vlot, highlights the pumps’ capacity to pump highly viscous slurry, permitting mines to preserve water. The energy efficiency of pipeline transportation additionally helps minimize power costs and reduces mines’ carbon footprint.
“The basis of GEHO pumps’ success is our ongoing consideration to technical innovation and improvement,” says Vlot. “This additionally allowed us to be pioneers within the pumping of very acidic materials at excessive temperatures, corresponding to nickel slurry at greater than 200°C at a mine in Madagascar.”

With their excessive capability, GEHO® pumps transport bauxite or iron ore over tons of of kilometres, providing one of the cost effective and sustainable transfer strategies out there to the mining industry. These pumps have additionally played an integral function in the success of a Weir Minerals paste solution at Finland’s largest open pit mine. Yara’s Siilinjärvi mine makes use of GEHO® pumps to move tailings from the plant, attaining the required seashore slope on its tailings facility to meet its life-of-mine strategy.
Backfilling is a vital method for mining to attain 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 materials – measuring 70% solids by weight – again into the mine’s labored out areas.
In the context of deep mines, GEHO® pumps provide an environment friendly and dependable method of dewatering from nice depths, as an alternative of utilizing multiple smaller pumps to switch water to floor. The powerful GEHO® pump vary can do that by pumping from the underside of a mine to the floor in just one raise – even over kilometres.
“Apart from the price effectiveness of this resolution, an important benefit is that it reduces the chance of one 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 totally different levels inside the mine.”

The reputation of GEHO® pumps has additionally been constructed on their reliability, he explains. This has resulted from Weir Minerals’ ongoing analysis and growth into its pumps’ put on components. This course of is based on an in-depth understanding of the entire pumping system by which the pump operates.
“Taking under consideration how our pumps work together with these systems, we give consideration to key features of the pumps such because the diaphragm and propelling liquid system,” he says. The propelling liquid provides the barrier between the piston and the diaphragm ensuring that all the transferring components move in oil and never slurry.
He emphasises the significance of diaphragm dynamics and the necessity to control the quantity of propelling liquid within the chamber. This is completed by way of the PLC management, to ensure that the diaphragm runs in the right position.
pressure gauge is sweet at bending, but when it stretches it can tear,” he says. “Our goal is to extend the substitute intervals between diaphragm replacements, serving to mines to reduce both their downtime and their complete value of ownership.”

The monitoring of GEHO® pumps’ operation is performed through digital know-how in order that operators can stay abreast – in real time – of the pump’s performance and situation. 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 range, and is even exploring potentialities for transferring coarse ore to the floor from deep in a mine – as a more value effective choice to conventional hoisting strategies.
“Vital to all our GEHO pump solutions is the Weir Minerals’ global service network, ensuring that wherever our pumps are operating there might be an skilled local service crew to support them,” he concludes.