The CLF flotation machine is a mechanically agitated flotation device that can process both conventional and coarse particle sizes, as well as high-density and high-concentration full-grade materials. It is especially suitable for the separation of coarse-grained non-ferrous, ferrous, and non-metallic minerals, such as quartz sand and smelting slag. As the impeller rotates, low-pressure air supplied by the blower enters between the impeller blades through the hollow main shaft and the distributor. Simultaneously, the slurry is drawn from below the impeller into the space between the impeller blades, where it is thoroughly mixed with air. The mixture is then discharged from the upper part of the impeller, passing through the stator to stabilize the flow, and moves through the grid plate into the upper region of the flotation tank. Inside the flotation machine, there are many bubbles in the internal channel, while the external circulation channel contains few or no bubbles. This pressure differential, combined with the suction effect of the impeller, causes the internal slurry and bubbles to rise through the grid plate, carrying coarse mineral particles to the top, forming a suspension layer. The mineralized bubbles and finer mineral particles continue to rise, with the mineralized bubbles forming a froth layer at the surface. The finer mineral particles are recirculated back to the impeller zone for further flotation.