Watson-Marlow Pumps Group Peristaltic Hose Pumps for Mining and Mineral Processing
Watson-Marlow are world leaders in peristaltic pump manufacture for mining, chemical and other industries. Peristaltic pumps handle abrasive, viscous and aggressive liquids. Lime slurry for pH control, acids, corrosive cyanide for gold recovery, grout, thickener underflow – Watson-Marlow pumps handle them all, at up to 80m3/h and 16bar (230psi). Shear-sensitive polymers for flocculation are pumped without degradation.
Peristaltic pumps have no valves, seals or glands to leak, clog or replace. The pumped fluid does not touch the pump itself – it is in contact only with a high-pressure, flexible hose. Maintenance is confined to a periodic hose change, which takes minutes. Peristaltic pumps can run dry, reverse their direction of flow, and are self-priming.
Peristaltic pumps
Mining industries handle corrosive, toxic media with high specific gravities, which cause problems for other pump types. Valves clog, diaphragms perish, rotors corrode.
Peristaltic pumps – hose pumps, as they are called in larger sizes – operate on the positive-displacement principle of our digestive system. Within the pump housing, rollers compress the hose against a semi-circular track – like flattening a garden hose between finger and thumb. The pressure point moves along the hose, pushing the tube’s contents before it. Behind the pressure point, the hose resumes its shape, sucking in more fluid. Solids – even bulky ones – are carried through the pump harmlessly.
World leaders in high-pressure hose pumping
The key to the process is the hose. For high-pressure applications, our hose has a composite construction formulated to withstand abrasion and chemical attack. The inner core is manufactured from soft material, cushioning any solids caught in the compression phase of peristaltic motion, and leaving shear-sensitive flocculants undamaged. The outer covering is hard rubber, reinforced with braided nylon.
The pumps are available with drives suitable for high-pressure washdown, TEFC and explosive environments.
Bredel hose pump – the future of high-pressure hose pumping
The force needed to compress the hose in a large hose pump, up to 100mm in diameter, is substantial. Bredel models – state-of-the-art leaders among high-pressure peristaltic pumps – feature a patented, direct-coupled design: a large, twin-bearing hub supports the rotor – placing no stress on gearbox bearings. No baseplate is needed, and the footprint is minimal.
Widely used for handling abrasive slurries, pumping silica suspensions up to 70% solid by weight with no settling out, and transferring tailings including particles typically 5mm in diameter, Bredel hose pumps help produce gold, platinum, vanadium, nickel, coal, copper, kaolin, diamond, trona, uranium … the list goes on.
Watson-Marlow pumping solutions
Copper tailings – slurry is very abrasive. Centrifugal pumps with soft packing shaft seals had to be water-flushed to limit wear on the shaft sleeve. Fine until winter froze the water. Solution: a Bredel 100, with no seals to wear out. Tailings could be continuously pumped at higher concentrations, doubling plant efficiency. Downtime: a few minutes every 2,000 hours to change the hose.
Natural kaolin – abrasive sludge with high specific gravity. Solution: a Bredel 40, 80 or 100, pumping slowly, at high volumes, without hardening the sludge.
Acid slurry platinum waste – pumped with low pulsation from settling tanks to cyclone for separation. Solution: a Watson-Marlow 700 pump with acid-resistant Marprene tubing and a four-roller rotor for minimal pulsation.
Ammonia metavanadate slurry – delivery lines blocked when centrifugal or eccentric screw pumps were used. Solution: a Bredel 40 with no valves or obstructions to clog.
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Benefits of Peristaltic Pump Technology for Mining Applications
All peristaltic pumps supplied by Watson-Marlow Pumps Group can be considered as inherent metering pumps offering repeatability of 99.5%. Furthermore, many models include integral digital drives with Profibus or SCADA control.
Benefits of Peristaltic Pump Technology for Mining Applications
All peristaltic pumps supplied by Watson-Marlow Pumps Group can be considered as inherent metering pumps offering repeatability of 99.5%. Furthermore, many models include integral digital drives with Profibus or SCADA control.
Watson-Marlow Bredel SPX hose pumps
Watson-Marlow Bredel SPX hose pumps easily pump abrasive fluids like tailings, metal slurries and thickener underflow. Due to the high solids content of these slurries other types of pumps fail because the product comes in contact with the rotors, stators, impellersand seals of the pump. In a Watson-Marlow Bredel hose pump, the hose never fails due to abrasion!
Watson-Marlow Bredel SPX hose pumps
Watson-Marlow Bredel SPX hose pumps easily pump abrasive fluids like tailings, metal slurries and thickener underflow. Due to the high solids content of these slurries other types of pumps fail because the product comes in contact with the rotors, stators, impellersand seals of the pump. In a Watson-Marlow Bredel hose pump, the hose never fails due to abrasion!
Watson-Marlow Pumps Group – Mining Industry Capabilities Brochure
World-leading peristaltic pump manufacturer Watson-Marlow has launched a new brochure to present its range of products for the mining, chemical and other industries.
Related Projects
Press Release
Following the highly successful launch of the revolutionary Qdos 30 peristaltic metering pump, Watson-Marlow Pumps Group is now introducing the larger Qdos 60 model.
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Read moreIn what’s described as a “no-valve metering revolution” Watson-Marlow Pumps Group launches its revolutionary Qdos 30 pump range. Developed in response to extensive industrial customer feedback for improved chemical metering, the Qdos 30 eliminates ancillary equipment, enhances productivity, and reduces chemical waste through more accurate, linear, and repeatable metering than typical solenoid or stepper driven diaphragm metering pumps.
Read moreDecades of experience and knowledge have combined with closely scrutinised customer feedback to deliver APEX, three new hose pumps from Bredel, part of the Watson-Marlow Pumps Group.
Read moreSince adopting Bredel SPX50 hose pumps from Watson-Marlow Pumps Group in various parts of its process, the water treatment plant at Kembla Grange has saved significant costs associated with downtime and maintenance.
Read moreUntil recently, turbidity testing at the Pontsticill Water Treatment Works in the Brecon Beacons National Park relied on the use of bellows pump technology. However, the inherent introduction of air in the samples was undesirable and led to false readings. Now though, relief has arrived in the shape Watson-Marlow's new Qdos 30 metering pumps, which not only provide excellent suction lift, but do so without air locks.
Read moreThe revolutionary new Qdos 30 metering pump from Watson-Marlow Pumps Group is proving a resounding success in Barrie, Canada. Located in southern Ontario on the western shore of Lake Simcoe, Barrie is a modestly sized city (135,000 residents) but one with a track record for quality when it comes to its potable water supply.
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Read moreA report by Frost & Sullivan, a global growth consulting company, identifies Watson-Marlow Bredel as Europe's number one positive displacement pump brand. The finding from the latest market survey is a great start to 2008 for the world leaders in peristaltic hose and tube pumps. The
Read moreHoneydew-based Watson-Marlow Bredel SA has won a R1.2 million order to supply 32 direct-coupled and peristaltic pumps to the Two Rivers Platinum Project in Mpumalanga. The contract boosts the company's order book for pumps to South African platinum mines to more that R16 million joint v
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Read moreWatson-Marlow Bredel has launched three new IP66-rated pumps to satisfy the requirements of the toughest processing industries. The result of several years design work and customer research, the new 520 series of peristaltic pumps provides unrivalled levels of accuracy, reliability and control fo
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Read moreA new-generation dosing pump is playing a key role in alleviating waterborne diseases in rural Africa. Watson-Marlow Bredel's SPX 10 dosing pump is at the heart of onsite diluted sodium hypochlor-ite plants being built by Pretoria-based Aquarius Chlorination to overcome sanitation prob
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