Peristaltic Hose Pumps for Mining and Mineral Processing
Falmouth,
Cornwall,
England,
TR11 4RU,
Other,
United Kingdom
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.
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.
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.
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.
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.
See also:
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.
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 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 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!
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.
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.
The speed, accuracy and repeatability of a Flexicon PF6 tabletop peristaltic filling machine from Watson-Marlow Pumps Group is helping a Hertfordshire-based supplier of customised medicinal products improve its process strategy.
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Watson-Marlow Pumps Group is introducing a new food grade hose for use with Bredel pumps. FDA and EC compliant, the new F-NBR hoses offer better wear resistance and longer life for improved production efficiency and process/product safety.
In 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.
Decades 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.
Since 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.
Until 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.
The 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.
When Prelok encountered problems using both impeller and diaphragm pumps to circulate adhesive coating fluids at its Willenhall plant in the West Midlands, this specialist in the application of pre-applied locking and sealing processes for threaded components turned to 521 Series pumps from Watso
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Minera Fresnillo, a subsidiary of Peñoles, located in north-west Mexico, was experiencing endless headaches with their diaphragm pumps. Minera is dosing aerophine, xanthate, sodium cyanide, and copper sulfate into flotation tanks. Unfortunately, the diaphragm pumps were in need of constant and co
A 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
Honeydew-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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A 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
Watson-Marlow Bredel S.A. (Pty) Ltd
PO Box 2742,
2040 Gauteng,
Honeydew,
Other
South Africa
Falmouth
Cornwall
England
TR11 4RU
Other
United Kingdom
Watson-Marlow Bredel Pumps Inc
37 Upton Technology Park,
Massachusetts,
Wilmington,
01887-1061,
Other
United States of America
Spirax-Sarco Engineering
107 Gui Qing Road,
Shanghai 200233,
Caohejing Hi Tech Park,
Other
China
Other
Other