| Pump up to 80% Fine Solids in Suspension | Substantially Reduces Water Use | Can Dry Run |
| Ideal for Slurry transfer | Reduces process water by up to 4, No gland water needed | No damage if supply line runs dry |
Applications
Mining is an uncompromising environment, demanding operational reliability, infrequent but simple maintenance and long term survivability – all properties of Verderflex pumps whether dosing reagents, transferring slurry or pumping underflows
Pumping Mining Slurries with a Peristaltic Pump
Peristaltic Hose pumps can circulate slurry SGs of 1.6 to 1.8 or up to 80% solid content. The traditional centrifugal pump loses efficiency when the slurry SG reaches 1.3 or 30% solids.
Pumping Thickener Underflow Slurries
Concentrate Slurry containing a abrasive materials from three areas including very abrasive high grade nickel concentrate, mixture of copper and nickel and copper slurry with low nickel, flows up to 359 l/min (95 US GPM), up to 72% solids density of 4.29 - 4.97.
Peristaltic pumps rectifies the pH balance of acid mine water
After decades of uncontrolled industrial (mining) activities, water supply is under serious threat. Studies show that acid water levels in the country's mines are rising at a staggering average rate of 0.59 m/day. The water situation is in fact threatening the population’s survival. At the heart of resolving this problem are the treatment of water and wastewater.
Transferring of Copper Slurry
Mining processes involve transferring of slurries that often contain solids in an excess of 80% by weight and have specific gravities (SGs) above 2.0. These slurries are highly abrasive in nature and corrosive. Verderflex peristaltic hose pumps are ideal for pumping such slurries since they have a highly engineered, reinforced hose and are highly resistant to the abrasion of slurry particles.
Pumping Platinum Slurry
Verder Pumps SA (Pty) Ltd, provide mining supplies to most of the mines in the Rustenburg area. Of these, the Angloplat operation has 3 running VF125 pumps at their Waterval Smelter plant. With the change of processes at the smelter and the need for reliable quality pumps, Div de Villiers, Engineering Specialist at the Waterval Smelter, took into consideration the Verder range of pumps which are renowned for their durability, and are able to withstand the demand for the capacity for the pumping of slurries.
Pumps contribute to cost savings and boost production
Supplier of pumps and accessories Verder Pumps South Africa (VPSA) says that the use of the VF125 pump range contributes to cost savings and increased productivity at platinum mines.
The most reliable hose pump impresses Xstrata
“A pump so reliable - it’s only downtime is for hose replacement and annual plant maintenance!” claims Xstrata Alloys Rhovan’s Acting HOD Christelle van Vuuren, regarding the Verderflex pump installed at the operation’s precipitation plant.
Hose Pumps in Spanish Salt Production Process
One of the greatest advantages of the British made Verderflex hose pump is its immunity to the detrimental effects of handling high solid content and abrasive substances. Whilst other pump designs become subject to costly maintenance and part replacement, Verderflex peristaltic hose pump users can enjoy trouble-free production and low running costs.
Pumps for the mining industry
Verderflex peristaltic pumps are manufactured in the EU within ISO 9001, ISO 14001 and ISO 45001 accredited facilities.
Verderflex® Dura
The Verderflex Dura is a true 2nd generation pump : the first real advance in hose pump technology since the high pressure hose. It combines a close coupled pump's compactness with the traditional long coupled pump's benefits and gains from a total re-design rather than adapting an original concept.
| Max flow | 33000 l/h |
| Max pressure | 16 bar |
Verderflex® VF
The original Verderflex peristaltic hose pump series is now solely focussed on high flow applications and includes the widely used VF125, the world's largest high pressure hose pump.
| Max flow | 90 m3/h |
| Max pressure | 16 bar |
Heavy duty slurry pumps for the mine
In dosing galleries, the variable nature of the corrosive reagents causes diaphragm pumps to clog leading to increased chemical usage and lower plant efficiencies, whereas progressive cavity pumps suffer from burnt stators as they are allowed to run dry. This has lead to peristaltic pumps being specified in floatation cells, primary mineral and tailings retreatment plants and heap leaching installations worldwide.
The rubber hose is capable of pumping slurries containing:
- Pyrite
- Copper concentrate
- Uranium
- Nickel
- Cobalt
- Silver
- Platinum
- Chrome
- Gold concentrate
Peristaltic hose pumps have many applications in the mine:
- Slurry transfer
- Thickener underflow recirculation
- Reagent dosing
- Froth flotation
- Cyanide processing
The Verderflex VF125 is the world’s largest high pressure hose pump and can of pump high SG slurries at over 60m³/hour or 260 GPM. The Verderflex VF125 and VF100 are both ideal for the heaviest duty tasks such as circulating slurry and thickener underflow.