Centrifugal extractor

Abstract

The invention discloses a centrifugal extractor low in vibration and excellent in separation effect. The centrifugal extractor comprises a machine frame; a feed inlet barrel is arranged on the machine frame; the feed inlet barrel is provided with a light phase liquid inlet and a heavy phase liquid inlet; a driving motor is arranged on the upper part of the machine frame; a power output shaft of the driving motor is connected with a rotating shaft; the other end of the rotating shaft is inserted into the feed inlet barrel, and is connected with the lower end of the feed inlet barrel; the part of the rotating shaft in the feed inlet barrel is sleeved with a rotary drum; the lower part of the rotary drum is provided with a mixed material inlet; the rotating shaft is provided with a feed inlet blade wheel; the rotary drum is provided with a light phase separation chamber and a heavy phase separation chamber; the lower part of the light phase separation chamber is provided with a light phase inlet; a heavy phase inlet is arranged between the light phase separation chamber and the wall of the rotary drum; an annular light phase collecting chamber and an annular heavy phase collecting chamber are arranged on the machine frame above the feed inlet barrel successively; the light phase separation chamber is provided with a light phase outlet; the light phase collecting chamber is provided with a light phase discharge port; the heavy phase separation chamber is provided with a heavy phase outlet communicated with the heavy phase collecting chamber; and the heavy phase collecting chamber is provided with a heavy phase discharge port.

Description

technical field [0001] The invention relates to a centrifugal extractor. Background technique [0002] The working process of the centrifugal extractor is mainly divided into two parts: the mixing mass transfer process and the centrifugal separation process. The two liquids to be mixed are mixed under the rotation of the drum or paddle of the centrifugal extractor. The liquid enters the drum and rotates at a high speed driven by the drum to generate centrifugal force. Under the action of centrifugal force, the liquid with high density gathers outward, and the liquid with low density gathers inward. The two liquids will gradually stratify to form an interface. The denser liquid on the outside exits the extractor through the heavy phase outlet, and the less dense liquid on the inside exits the extractor through the light phase outlet, thus completing the separation process. [0003] The disadvantage of this traditional centrifugal extractor is that since the heavy phase diver...

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Problems solved by technology

[0003] The disadvantage of this traditional centrifugal extractor is that since the heavy phase diversion holes and flow control holes are arranged axially, after the motor is started, the two-phase materials are mixed and separated, and rise from the drum very quickly, and the heavy phase quickly Directly flow out from the heavy phase guide holes and flow control holes, resulting in a short residence time of the heavy phase in the drum and cannot be separated well

[0004] Moreover, when the main shaft drives the drum at the end to rotate at high speed, it will cause the centrifugal extractor to vibrate. The higher the speed, the more serious the vibration, which limits the speed of the drum and makes the mixing and separation of light and heavy phases not good enough.

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