The Ins and Outs of Vertical Froth Pumps

The Ins and Outs of Vertical Froth Pumps

In industries such as mineral processing, chemical processing, pulp and paper, and recycling, it’s important to maintain system integrity when transporting aerated media.vertical froth pumps But frothy slurries can challenge standard pumps, often leading to air binding, unplanned shutdowns and excessive maintenance costs. To handle these tenacious froths, engineers developed vertical froth pumps that reduce downtime and boost efficiency. This article discusses the inner workings of these specialized equipment solutions, as well as key selection factors that can help you choose the right model to meet your needs.

Built for Foamy and Air-Entrained Slurries

Designed specifically to transfer aerated media, EDDY Froth Pumps are ideal for flotation froth and air-entrained slurry applications.vertical froth pumps They operate effectively at high percent solids, reducing the need for excess water addition, and improve overall process efficiency. Their non-clogging hydraulic profile minimizes blockages caused by unstable froth, fibrous material, or debris in the slurry stream, extending service life in abrasive froth environments. They can be installed in flooded suction, submersible or vertical configurations to accommodate varying plant layouts and process constraints.

They are equipped with a time-tested Warman AHF CARS impeller, which vents air through the collector chamber to eliminate pressure buildup and aeration in the shaft cavity.vertical froth pumps The design also enables the pump to operate at higher head levels than conventional slurry pumps, minimizing downtime and increasing efficiency in demanding applications.

To further enhance performance, a hydraulically balanced pump design minimizes vibration and noise and ensures smooth operation with minimal wear on bearings and shaft seals. This reduces maintenance costs and increases uptime in harsh industrial environments. They are available in a range of discharge sizes to match your specific application requirements, with discharges ranging from 50-550 m3/hr and head ratings up to 4,550 m3 at design.

The cantilever vertical slurry pump design suspends the impeller and bearing chamber above the sump level, eliminating stuffing box or shaft seals and eliminating any need for water flushing. The pump is constructed of abrasion-resistant materials like high-chromium iron alloy or wear-resistant natural rubber for long-wearing operation and reliability in tough conditions.

A full float sensor monitors sump level, preventing the froth pump from running dry and maintaining a continuous flow, even if the impeller is clogged or the shaft seal is damaged. This reduces downtime and maintenance costs and enables the pump to run as a self-priming, closed-loop system without an external suction line. This feature is especially valuable in applications where aerated slurry is transported across large distances from one sump to another, such as in a tailings pond.

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