Centrifugal Extractors Types and Usages

Centrifugal extractors use the rotation of a rotor inside a centrifuge to mix two immiscible liquids outside the rotor and to separate the liquids in a gravitational field inside the rotor. In this way, the centrifugal extractor produces a continuous extraction from one liquid phase (fermentation broth) to another (organic solvent).

Single-stage centrifugal extractor

Two immiscible liquids of different densities are fed into separate inlets and mixed rapidly in an annular space between the rotating rotor and the fixed housing. The mixed phase is directed to the center of the rotor by radial vanes at the bottom of the housing. As the liquids enter the central opening of the rotor, they are accelerated toward the wall. The mixed phase is rapidly accelerated to rotor speed, and as the liquid moves upward, separation begins. A weir system at the top of the rotor allows each phase to flow out of the rotor before landing in the collector ring and out of the stages. The flow between stages is by gravity and no inter-stage pump is required. The centrifugal contactor thus acts as a mixer, centrifuge and pump. Centrifugal contactors are usually referred to by the diameter of their rotors.

Multistage centrifugal extractor

A feed solution initially containing one or more solutes and immiscible solvents with different densities (light phases on the cross-sectional sketch) flows counter-currently through the rotor of the extractor, designed with a stack of mechanical subassemblies representing the required number of independent stages. The continuous mixing and separation operation performed in each mechanical stage allows mass transfer of the solute from the feed solution to the solvent.
The mixing chamber, where the two phases are mixed and the transfer of the solute to be extracted is achieved. The stationary disc allows mixing of the two phases and the formation of an emulsion. It operates as a pump to extract the two phases from the previous stage.
Decanting chamber, where the two previously mixed liquids are completely separated by centrifugal force. The overflow weir is independent of the flow rate stabilization separation zone. The position of the interphase depends on the diameter of the heavy phase overflow weir, which is interchangeable and chosen according to the phase density ratio.

Why centrifuges are needed

Centrifuges play an important role in many companies that handle a wide range of solid and liquid products. Companies use centrifuges to extract fluids from different densities. Thus, our machines extract liquid cannabis oil and other essential oils from solid plant material. The machine itself is a high-speed rotating vessel that uses centrifugal force to separate the fluid from the solid material. This allows your business to extract fluids to maximize purity.
TOPTION's stainless steel centrifuges operate with the highest quality components. Our centrifuges use cold ethanol extraction methods to provide better CBD results. These machines place biomass into the rotor with cold ethanol so that the ethanol can collect the extracted compounds.

Select TOPTION

We provide distillation extraction systems to companies everywhere so that more people can enjoy quality CBD, cannabis oil and other essential oils. We have a team of professional designers, builders and engineers who make every effort to provide the best centrifuge equipment for all companies that need them. The plant material you use should be processed and extracted using the highest quality centrifuges. Our goal is to ensure that your centrifuge operates safely and efficiently.

Please be sure to contact us for more information.