High-throughput continuous countercurrent extractor

Abstract

The invention relates to a high-throughput continuous countercurrent extractor. The high-throughput continuous countercurrent extractor comprises a rotating shaft with one surface having a spiral guide passage, an outer barrel with an inner surface having a spiral guide passage, an upper expanding section, and a lower expanding section, wherein the rotating shaft is installed coaxially in the outer barrel, a mixing circular gap is formed between the rotating shaft and the outer barrel, the upper expanding section is connected with the upper part of the outer barrel, the lower expanding section is connected with the lower part of the outer barrel, and the rotating shaft rotates at a high speed, so that a light phase and a heavy phase flowing in a countercurrent manner in the mixing circular gap are mixed efficiently to transfer mass; and the spiral guide passage on the outer surface of the rotating shaft enables the light phase to ascend in a rotating manner from the lower expanding section along the guide passage to enter the upper expanding section, and the spiral passage on the inner surface of the outer barrel enables the heavy phase to descend in a rotating manner from the upper expanding section along the guide passage to enter the lower expanding section, so that the light phase and the heavy phase can pass through the mixing circular gap in a high-throughput countercurrent manner while transferring the mass efficiently.

Description

technical field [0001] The invention belongs to the technical field of extraction equipment, in particular to a high-throughput continuous countercurrent extractor. Background technique [0002] In chemical, energy, mining and other industrial production, it often involves the operation of separating liquid mixtures, wherein a liquid solvent (extractant) that is insoluble or partially compatible with it is added to the liquid mixture (mixed liquid) to be separated to form In a two-phase system, the separation operation is called liquid-liquid extraction by utilizing the different distribution properties of the components in the mixed liquid in the two phases, and the easily soluble component (solute) enters the solvent phase (extraction phase) to achieve separation. [0003] In order to improve the recovery efficiency of the target product, the liquid-liquid extraction in industrial production mostly adopts the countercurrent operation mode. The countercurrent extraction mo...

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Problems solved by technology

[0004] In order to overcome the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a kind of high-throughput continuous countercurrent extractor, can carry out efficient continuous countercurrent extraction under the situation of two-phase high-throughput and not easy to mix back, has in two-phase In the case of high throughput, the advantages of high-efficiency mass transfer and not easy to flood

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