FLSmidth adds to flotation portfolio

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Danish engineering company FLSmidth recently launched two new developments in its flotation portfolio, the WEMCO II and the REFLUX Flotation Cell (RFC), at the MINEXCHANGE 2022 SME Annual Conference & Expo in Salt Lake City.

The WEMCO II design features full air control without blower and froth maintenance, which elevate kinetic performance and lower operational costs.
The WEMCO II design features full air control without blower and froth maintenance, which elevate kinetic performance and lower operational costs. - Image: FLSmidth

FLSmidth's WEMCO II Flotation Cell builds upon the success of the industry standard, WEMCO, but with optimisations to the rotor and stator/hood that greatly improve power consumption, air flow and pumping.

WEMCO flotation cells (there are 40,000 machines globally) have consistently delivered at the highest level when it comes to recovery. The new WEMCO II’s combination of efficient aeration and optimum solids suspension increases recovery and concentrate grade performance, as well as reducing reagent consumption.

The WEMCO II design features full air control without blower and froth maintenance, which elevate kinetic performance and lower operational costs. The result is better hydrodynamics and circulation, improved kinetics and performance, optimised energy efficiency and lower operating costs and the ability to control air without an external air supply.

The company’s REFLUX Flotation Cell (RFC) was also launched at SME. It exhibited the smallest industrial scale version of the RFC, a technology that reduces plant footprint as well as water, air and energy requirements.

The RFC reduces CAPEX by 35% and with no direct power input to the RFC, this results in 60% less energy use in a flotation circuit. Results from pilot-scale studies indicate that RFC technology can help mines use up to 60% less energy in their flotation circuits. Improved kinetic efficiency also reduces the amount of water used in the recovery process.