By Sebastien Brosse
Today, mining operations dot all points of the compass, in all climates and operating conditions, with mining companies constantly searching for the next rich deposit of such diverse commodities as gold, copper, iron, salt, coal and phosphates.
While technological advancements have helped streamline the process of finding and ultimately recovering buried commodities, mining, at its most basic, still requires drilling or digging holes in the Earth’s crust, and taking big rocks and turning them into small rocks in order to extract the pay lode. These extreme operations in harsh working conditions place a great strain on the pumps that are used in liquid-handling applications in the mining process, but all of these can be optimized through the incorporation of peristaltic (hose) pumps.
Peristaltic (hose) pump technology excels when used in mining operations because it offers design characteristics and a method of operation that can successfully and reliably handle produced liquids that may have elevated chemical concentrations, high viscosities or high levels of particulates. Specifically, Abaque® Series Peristaltic (Hose) Pumps from PSG®, Oakbrook Terrace, IL, USA, a Dover company, have been engineered to defeat the challenges inherent in mining applications.
Abaque pumps meet the liquid-handling requirements of the mining industry thanks to a stronger and more durable rotor design and patented hose-holding system. They also feature a seal-less design that eliminates leaks and product contamination, making them ideal for a wide variety of tough mining applications, including the transfer of such substances as sludge, clay slurry, lead sulfate and pyrite slurry with solids concentrations of up to 80%. These are operational parameters that competitive pumps of any type simply struggle to achieve.
Abaque pumps also maintain excellent volumetric flow consistency, making them ideal for the 24/7 operating cycles that characterize mining operations. The pump’s seal-free design makes it dry-run, self-priming and low-slip capable, and eliminates any potential leak or contamination points while simultaneously providing superior suction lift. Finally, peristaltic (hose) pumps are easy to operate and easy to maintain, and their reversible operation allows for pumping in both directions.
In order to successfully handle a wide gamut of fluids in harsh conditions, the peristaltic pump’s hose – which, because of its seal-less design, is the only component that actually contacts the pumped medium – needs to be able to reliably deliver the millions of pumping cycles that are required during its lifetime. Abaque offers natural rubber, EPDM, Buna-N and Hypalon® hose-material options, giving users the widest range of choices regardless of the application.
Another consideration when selecting a hose material is its “fatigue resistance.” This trait defines how resistant to failure the hose material is as it runs through its millions of pumping cycles. A hose material that is susceptible to developing cracks and holes relatively early in its operational life cannot reliably handle the demands of the repeated contraction and relaxation of the hose, especially when particulate-laden liquids are being pumped. The reinforced construction of the Abaque hose and its use of rubber compositions that have been specially designed for the stresses that are created within the hose allow for optimum life-cycle performance.
Abaque Series pumps offer suction-lift capabilities to 9 meters (25.5 feet), as well as the ability to run dry continuously without adversely affecting the pump’s performance. Abaque pumps are available in 13 different models – all of which feature ductile-iron and steel construction – with continuous flow rates ranging from 0.26 to 1,283 L/min (0.07 to 339 gpm) at maximum differential pressures from 7.5 to 16 bar (109-232 psi).
The pumps have been designed to handle products with water-like viscosities to those as high as 70,000 cSt (352,000 SSU), solid particle sizes from 1.5 mm to 18 mm (0.06 inches to 0.71 inches) and soft particle sizes from 1.5 mm to 31 mm (0.06 inches to 1.22 inches). All Abaque pumps can handle product temperatures from 0ºC to 80ºC (32ºF to 176ºF) with models featuring an EPDM hose capable of handling maximum temperatures to 90ºC (194ºF). Optional equipment includes hose-failure detectors, vacuum kits and non-metallic inserts.
Sébastien Brosse is Team Leader Abaque® and can be reached at Sebastien.firstname.lastname@example.org. Abaque is a product brand of PSG®, Oakbrook Terrace, IL, USA, a Dover company. Abaque pumps are manufactured in PSG’s Auxerre, France, facility and are supported through its Mouvex Americas facility in Grand Terrace, CA. For more information on the full line of Abaque peristaltic (hose) pumps, please go to psgdover.com.
This content is sponsored by Abaque. Sponsored content is authorized by the client and does not necessarily reflect the views of the Water Technology editorial team.