Self-absorbing Mechanical Agitation Flotation Machine

Self-Aspirating Mechanical Flotation Machine (SF, BF, XJK Series)

The Mechanical Agitation Flotation Machine is the workhorse of the modern mineral processing industry. Unlike pneumatic cells that require expensive external blowers, this equipment features a unique "self-aspirating" (self-priming) design. The high-speed rotation of the impeller creates a powerful negative pressure zone that automatically sucks in atmospheric air and mineral slurry simultaneously.

By integrating aeration, slurry suction, and mechanical agitation into a single standalone unit, this Self-Aspirating Flotation Cell vastly simplifies plant design. It eliminates the need for complex external air piping and expensive slurry pumps between flotation stages, allowing the tanks to be installed on a flat, horizontal floor.

Available in the proven SF, BF, and classic XJK series, our Froth Flotation Equipment is the preferred solution for small-to-medium scale mines, complex multi-stage cleaning circuits, and the efficient recovery of copper, lead, zinc, gold, and fluorite.

Core Advantages & Economic Benefits

• No External Blower Required: The hollow spindle and specialized impeller automatically draw in sufficient atmospheric air. This cuts equipment investment costs by up to 40% by eliminating blowers and air piping.
• Horizontal Flat-Floor Installation: Because the machine can suck slurry up from the previous tank (self-priming), you do not need step-down (staircase) foundations or intermediary slurry pumps, drastically reducing plant construction costs.
• Intelligent Center Reflux: The fluid dynamics of the tank allow middlings (partially processed minerals) to naturally flow back to the center of the impeller by gravity, creating a highly efficient internal circulation.
• Modular & Durable Tank Design: The reinforced U-shaped tanks are lined with super wear-resistant composite rubber or polyurethane, extending the service life of the tank and impeller by more than 50%.

How a Self-Aspirating Flotation Cell Works

The entire process relies on the intense hydrodynamic forces generated by the double-layer impeller.

1. Slurry Feeding: Finely ground, chemically conditioned slurry flows into the tank.
2. Negative Pressure Generation: The motor drives the impeller at high speed. This flings the slurry outward centrifugally, creating a deep vacuum (negative pressure) at the center of the impeller.
3. Self-Aspiration (Air & Slurry): This vacuum instantly sucks atmospheric air down the hollow central shaft. Simultaneously, the lower blades of the impeller suck slurry up from the bottom of the tank.
4. Mineralization & Frothing: The air is sheared into fine bubbles and mixed violently with the slurry. Hydrophobic (water-repelling) minerals attach to the bubbles and float to the surface, creating a mineralized froth layer that is scraped away as concentrate.

Model Selection: SF vs. BF vs. XJK

We offer three distinct series of mechanical flotation cells depending on your exact flowsheet requirements:

Operations & Maintenance FAQ