RU1529494C - Centrifugal extractor - Google Patents

Abstract

The invention relates to chemical technology and can be used to carry out semi-counterflow separation processes. The extractor consists of a rotary lock housing I, inside which there is a mixing chamber 2 and a delamination chamber 3, a central tube 4, a mixer 5, a tube 6, a selection chamber 7, a lower partition 8, an annular groove 9, a partition 10 dividing the delamination chamber and channels II To withdraw the mobile phase, the annular partition 12, the protrusion-bump 13, the tube 14 for introducing fluid into the annular recess, In order to eliminate stagnant zones and to prevent entrainment of the stationary phase, an annular undercut is made, passing towards the periphery towards onic surface ,, and a protrusion-chipper, going at an angle to the center from the bottom of the selection chamber, 1 nl. i (L

Description

The invention relates to the design of centrifugal extraction apparatuses and can be used in X1 thermal technology for conducting semi-prototyping processes of separation and concentration of radioactive elements.

The purpose of the invention is to increase the efficiency of a centrifugal apparatus by preventing the entrainment of a fixed phase.

The drawing shows a centrifugal extractor, General view (section).

The centrifugal extractor comprises a rotating body 1, inside of which there is a mixing chamber 2 and a delamination chamber 3, a central tube 4, a mixer 5, a tube 6, a selection chamber 7, a lower partition 8, an annular groove 9, a partition 10 separating the chamber selection from the delamination chamber, and channels 1I for outputting the mobile phase, annular partition 12, protrusion bump 13, tube 1A for introducing liquid into the annular undercut.

The extractor works as follows,

A certain volume of the stationary light phase containing separable isotopes is introduced into the mixing chamber 2 through the central tube A. Then, a liquid of a certain volume, corresponding in composition to the mobile heavy phase, which fills the annular groove 9, is also supplied through the tube 14, to exclude the case of a nepejitrea of this liquid, a protrusion bump 13 is provided in the sampling chamber, extending at an angle to the center from the bottom of the sampling chamber. For unhindered exit of liquid from the annular recess 9, it is provided with a conical surface Strongly, hydrochloric directed toward the periphery.

After filling the apparatus, an electric motor is started, which drives the extractor body 1 into rotation. The liquid located in the annular recess 9 immediately fills the part of the channels And and often the chamber 3

5, 0 5

about Q s

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5

layering, forming an artificial water trap according to the principle of communicating vessels, and the introduced stationary light phase containing separated isotopes is distributed in mixing chamber 2 and in delamination chamber 3, then a heavy yellow phase with a certain flow rate is fed through mixing tube 4 into mixing chamber 2 where it is peremegaetsya blender 5, Formed with the emulsion through the Central hole in the partition 8 enters the chamber 3 delamination, where it is under the action of centrifugal forces delaminates. The light phase in the delamination chamber is pushed to the center and, as the mobile heavy phase arrives, it is returned to the mixing chamber 2, and the heavy phase is passed through the And channels through the protrusion bump 13 into the selection chamber 7, from which it is led out of the apparatus by a pipe 6. The presence of an annular recess 9, which is filled with liquid before starting the apparatus, provides the creation of an artificial hydroelectric pressure device that prevents the entrainment of the stationary light phase.

Claims (1)

The claims A centrifugal extractor containing a rotating casing, separated by horizontal annular partitions into mixing, delamination and selection chambers of a mobile phase, a channel for moving in a moving phase separated from the chamber by a fixed partition, a central tube for supplying and sucking out solutions, a device for remixing and selection phases, characterized in that, in order to increase e Lectivities by preventing entrainment of the stationary phase, the partition separating the selection chambers from the delamination chamber is provided a conical protrusion-chipper in the central part, and in a fixed partition an annular groove is made, passing in the direction to the periphery into a conical surface.