Vertical multi-stage mixing clarifying extracting device by air stirring and extracting method thereof

Abstract

The invention discloses a vertical multi-stage mixing clarifying extracting device by air stirring. The device comprises 3-30 stages of extracting tanks which are stacked via the way of interlacing and are connected in series from bottom to top; each extracting tank is divided into a mixing tank and a clarifying tank; and the mixing tanks and the clarifying tanks are alternatively arranged left and right. An air stirrer is arranged inside the mixing tank. The extracting method comprises the steps that: firstly, air is added through an air inlet; a heavy phase enters into the mixing tank through a heavy phase inlet; a light phase enters into the mixing tank through a light phase inlet; the heavy phase is fallen and the light phase is risen; the heavy phase and the light phase are cut and smashed in the mixing tank; the cut light phase liquid drops and heavy phase liquid drops are completely mixed to be extracted; when the liquid level is higher than a clapboard; the mixing liquid of the heavy phase and the light phase enters into the clarifying tank, so that standing splitting-phase is performed; the light phase overflows into a pipe and is carried to the next-stage mixing tank by the gas; the heavy phase flows into the former-stage mixing tank; and the process is repeated, so that multi-stage extraction is finished. The extracting device is especially suitable for an easily emulsified system; and uniform mixing can be achieved under the condition of the clearness of a two-phase interface, so that the extracting process is finished.

Description

technical field [0001] The invention belongs to the technical field of extraction in chemical separation, and relates to an extraction device and an extraction method. Specifically, the invention relates to a tank-tower combined continuous extraction device and an extraction method. More specifically, the invention relates to an air-stirred A vertical multistage mixing and clarifying extraction device and an extraction method. Background technique [0002] Solvent extraction technology is a mass transfer separation process in which a liquid extractant is used to treat immiscible two-component or multi-component solutions to achieve component separation. The extraction technology can choose the appropriate extraction system and process according to the separation object and process requirements, which has the characteristics of high selectivity, good separation effect, easy operation and strong adaptability. With the wide application of extraction in atomic energy chemical i...

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to provide an air stirring vertical multi-stage mixing clarification extraction device, which can effectively solve the problem of extraction in a short period of time, can effectively avoid emulsification, and is suitable for pharmaceutical industry, hydrometallurgy, Extraction systems that are easy to emulsify in the oil industry, food industry, etc.

Images