| Warranty: | 2 Years |
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| Max.Head: | 80-110m |
| Max.Capacity: | 200-300 L/min |
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Tobee® AHF Horizontal Froth Pumps are heavy duty horizontal pumps designed to handle difficult tenacious froth.
• 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
Horizontal froth slurry pumps are primarily used in mineral processing, particularly in flotation circuits, where froth is generated. They are designed to handle the transportation of froth-laden slurries from one process stage to another, such as from flotation cells to concentrate thickeners or from flotation cells to dewatering equipment. Horizontal froth pumps have specific design features that differentiate them from other types of pumps used in mineral processing. Here are some key differences in performance and suitability:
Froth Pump Handling Frothy Slurries: The primary distinction of horizontal froth pumps is their ability to handle frothy or aerated slurries effectively. Froth pumps are specifically designed with features such as large internal volumes, open passages, and specialized impeller designs to accommodate the presence of air bubbles or froth in the slurry. This allows them to maintain pump performance and transport frothy mixtures without clogging or reduced efficiency, which may be challenging for other pump types.
Horizontal Froth Pump Air Handling Capability: Horizontal froth pumps are designed to handle large volumes of entrained air or froth within the slurry. They have the ability to pass air bubbles through the pump without significant loss of pumping efficiency. This is crucial in flotation processes and other applications where the generation of froth is an integral part of the separation process.
Wear Resistance: Mineral slurries can be highly abrasive, containing solid particles that can cause wear on pump components. Horizontal froth pumps are typically constructed using wear-resistant materials, such as high-chrome alloys or rubber linings, to withstand the erosive nature of the slurries. This enhances their durability and extends their service life in abrasive mineral processing environments.
Efficiency in Froth Transport: Horizontal froth pumps are optimized for efficient froth transport. They are designed to minimize froth breakdown or degradation during pumping, allowing the froth or aerated slurry to be transported with minimal loss of froth stability or valuable minerals. This is crucial in maintaining the effectiveness of flotation processes and ensuring optimal separation efficiency.
Pumping High-Density Slurries: Horizontal froth pumps are capable of handling high-density slurries with high solids concentrations. They can efficiently transport thickened or concentrated slurries, including those with a significant solids content, such as tailings. This makes them suitable for applications where the processing plant produces thickened or highly concentrated slurries.
Application Specificity: While horizontal froth pumps excel in handling frothy slurries, they may not be the most suitable choice for all mineral processing applications. Other pump types, such as centrifugal slurry pumps or vertical pumps, may be more appropriate for applications where froth is not present or where the slurry characteristics differ significantly.
As one of the most commonly used seals for rotating shafts, the packing seal can come with low-flush or full flush arrangement which uses flushing water to prevent media from escaping the pump housing. This kind of seal is suitable for use under all pumping conditions. In situations where corrosive solids or high temperature might be encountered, aramid fiber is used as the packing material for the gland. For high abrasion conditions, a ceramic shaft sleeve is available.
Centrifugal Seal - Expeller
The combination of impeller and expeller creates the pressure needed to seal against leakage. Together with the gland seal or lip seal which is used as the shut-down seal, this type of seal can handle sealing requirements for applications where full-flush gland seal is impractical due to lack of water on the site, or sealing water is allowed to enter inside the pumping chamber to dilute the slurry.
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