KREBS® pumps support mine’s efficiency drive

In the mining industry’s drive to conserve energy, a give attention to pumps is important, particularly given the sheer scale of pumping gear required on the average mine and mineral processing plant.
On ตัววัดแรงดัน , global minerals process specialist FLSmidth has allowed mines to achieve new levels of efficiency with the initially patented wear ring technology on its KREBS pumps, according to Stephan Kruger, FLSmidth’s Vice President Pumps, Cyclones and Valves for Sub-Saharan Africa, Middle East and South Asia. เครื่องมือวัดpressure have seen significant effectivity gains by using KREBS pumps, explains Kruger, resulting in considerable bottom line impacts when multiplied by the dozens or even lots of of pumps usually employed on a single mine web site.
“It is not only the rising cost of electricity that drives mines’ power strategies, but additionally their commitment to a low carbon future,” he says. “FLSmidth’s KREBS pumps directly assist these efforts by our mining customers, thanks in great part to our revolutionary wear ring technology.”
He highlights that two key aspects that cut back efficiency in slurry pumps are usually suction side recirculation and mechanical grinding between the casing and the impeller. The wear ring significantly reduces each of those elements, leading to lower energy draw and longer pump life.
“Through our case research, we now have seen energy draw being reduce by 5 to 10% for the same move and head with the application of KREBS pumps,” he factors out. “Similarly, we now have measured the impact on pump life, and have shown that the lifetime of wet end components can be lengthened by one and a half to 2 times.”
According to Derek Lane, General Manager Operations, conventional merchandise in the market solve solely one of these components by way of impeller and liner adjustment which may reduce recirculation but simultaneously exacerbates the grinding. “This leaves the pump user having to compromise on efficiency, which we don’t anticipate our customers to do,” Lane explains.
He says adjusting the damage ring permits the pace of the pump to be maintained as a continuing, quite than customers having to speed up the pump in response to the impression of grinding and put on. The put on ring in KREBS pumps could be simply adjusted in order that it continues drawing the identical power for the required pressure, holding vitality consumption to a minimum.
The regular adjustment of KREBS pumps can additionally be accomplished without shutting down the pump and disrupting operations, says Morne Potgieter, FLSmidth Sales Manager Pumps, Cyclones and Valves for Central and Southern Africa. This is essential as it contributes to the final continuity – and hence efficiency – of the entire operation.
“The wear ring could be merely adjusted by hand whereas the pump is operating, and without the utilization of any special tools,” he notes. “This permits the gaps to be stored as small as attainable to keep away from recirculation contained in the pump, whereas maintaining pace and pressure.”
FLSmidth makes the most of this technological innovation by way of its expert subject service teams and coaching offerings, which be positive that prospects perceive and apply the damage ring adjustment to greatest effect. Potgieter says the coaching leaves on-mine operators extra comfortable with the duty of adjustment, even if many of them could additionally be hesitant about engaged on rotating equipment.
“We also do intensive technical training with prospects on aspects similar to pump assemblies, and be certain that we are available when they need us,” he says.
The life of KREBS pumps is further enhanced by the vary of materials of building out there to go well with the applying, says Kruger. “The alternative of material relies on the appliance necessities and specifically minimising wear. There are a number of factors thought of which determine the fabric of building such as pump measurement, impeller measurement and tip velocity in addition to slurry hardness.”.
Materials used within the building of slurry pumps are classified into two primary types: metals and elastomers. For metal pumps high-chrome alloys, hypereutectic alloys, hypoeutectic alloys and stainless steels are generally used. Elastomers options differ between natural rubber, polyurethane and synthetics such as neoprene.
He emphasises that the application of these supplies makes their own contribution to the mining sector’s sustainability agenda, by lowering the extent of scrap produced because of equipment replacement.

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