AHF Series Heavy Duty Horizontal Foam Pump In Flotation
AHF froth pumps are heavy duty horizontal pumps designed tohandle difficult tenacious froth.
Froth
The problem of handling froth in some process circuits can be very frustrating. Froth often will air bind a pump. Our froth inducer blade impeller is designed to solve this problem, through less surging and higher efficiencies from smaller pumps.
Viscous slurries
An additional benefit of this froth impeller design and oversized inlet is that it raises the solids concentration limits that a centrifugal pump can handle. As the main problem of handling froth is similar to that of handling viscous slurries – namely, getting the slurry into the pump so it can be pumped – this pump has proven to be a high performer in dense media viscous slurries. Additionally, flow surging problems common to other centrifugal pump designs at low flows are eliminated for viscous slurries.
Application
The mining industry is a primary example where pumping operations can be plagued by froth and high viscosity problems. In the liberation of minerals from ore, the minerals are often floated through the use of strong flotation agents. Tough bubbles carry the copper, molybdenum or iron tails to be recovered and further processed. These tough bubbles create havoc with many slurry pumps, often leading to the selection of overly large and inefficient pumps. Warman® froth pumps are small and efficient. The inducer impeller and oversized inlet very effectively enable the froth or viscous slurries to get into the impeller allowing the pump to transport it to the next destination.
Low power costs, reliable operation, minimal surging, and feed tank overflow make AHF froth pumps user friendly.
Design Features
Based on the AH or L series slurry pumps
Existing AH or L series slurry pumps can be converted to AHF/MF/ LF horizontal froth pumps with only a few modifications
Inducer blade impeller for positive froth feed
Enlarged high efficiency slurry throatbush to maximize the inlet size and reduce NPSH required
Standard AH or L slurry pump mounting and flange center lines
Available in 2” through 22” froth pump discharge sizes
Pump Construction
Pump Selection Chart
