When the flotation column is working, the slurry is added to the flotation reagent for vigorous agitation, and is sent into the column by the center feeding device.

Due to the gravity of the slurry, it slowly descends from the column. The compressed air is dispersed into a large number of tiny bubbles through the inflator, evenly distributed over the entire section of the column and rises slowly.

The slurry forms a convective motion with the bubbles. In this case, a portion of the floatable mineral adheres to the bubble and floats up onto the slurry to form a mineralized bubble.

Spilling out of the foam chute or scraping the foam with a scraper is a concentrate.

Another part of the non-floating gangue cannot adhere to the bubble, and is discharged from the tailings lifting device or into the next operation, which is the tailings.

The SPR Sump Slurry Pump is a vertical, centrifugal and Single Casing Pump. Which design with elastomer covered components makes it ideal for corrosive, non-edge angle and high density slurries. It is available in a wide range of popular sizes to suit these applications: minerals processing, coal preparation, effluent handling, chemical processing, sand and gravel and general tank, pit or hole-in-ground slurry applications. With no any shaft seal or sealing water, the pump can also be operated normally even when there is insufficient slurry getting to the suction side.