SU670311A2 - Centrifugal extractor - Google Patents

Description

A horizontal recess 4, installed with a gap to the body and forming a water seal 5, an additional horizontal annular partition 6 with overflow windows 7 separating the delamination chamber 8 from the displacement chamber 9. Vertical coaxial cylindrical partitions 10 are installed in the delamination chamber, two peripheral ones of which have annular flanges 11 and are fixed to the lower horizontal partition using horizontal strips 12. In the center there is a fixed distributor 13 with agitators 14, a channel 15 for entering liquids and a tube 16 for output heavy phase.

The extractor works as follows.

The rotating apparatus through the channel 15 is filled with a light (stationary) phase, which during the entire extraction process is not removed from the apparatus. Thereafter, through the same channel into the mixing chamber 9, the heavy phase is supplied with a certain flow rate. The agitation is carried out by agitators 14, which can be made of any shape, for example, in the form of rods, a mesh or some other shape. Due to the inhibition of the emulsion by the broadcasters, its rotation speed in the mixing chamber is less than in the delamination chamber. Consequently, the pressure at the level of the overflow eye: n 7 created by the liquids in the mixing chamber is less than the pressure in the delamination chamber. As a result of pressure drop. Liquid is circulated: through the central opening in the septum 6, the liquid enters the exfoliation chamber and then returns to the mixing chamber through the overflow windows (the flow directions of the fluid are shown by arrows in Fig. 1).

The emulsion in the delamination chamber, the passage through the cavities between the vertical annular partitions 10, under the action of centrifugal forces, delaminates. The annular shoulders 11 prevent the separation of the separated heavy phase in the direction of the total flow of the emulsion to the overflow windows. Therefore, the phase flows from the surface of these partitions.

In the upper part of the delamination chamber, and by centrifugal forces, it is thrown to the periphery, from where it passes through the hydraulic lock 5 to the extraction chamber 3 and is taken out of the apparatus with the help of a tube. The light phase through the flow-through windows 7 returns to the mixing chamber.

The centrifugal extractor of the developed design will allow the process of semi-current extraction with a stationary light phase. This apparatus can be successfully used for the separation and concentration of substances having little differentiating distribution coefficients using liquids close to each other.

by density.

Claims (2)

1. Centrifugal extractor auth. St. 544444, about tl and h and y 1Ts and and with the fact that, with In order to carry out the extraction process in a semi-countercurrent mode with a stationary light phase, it is equipped with an additional horizontal ring partition with overflow windows located under the lower horizontal partition and vertical cylindrical partitions coaxially spaced between the lower and additional horizontal partitions, two peripheral which are alternately attached to the additional and lower horizontal partitions, and the central ones are equipped with shoulders, installed at a distance from the lower and additional partitions and rigidly attached to one of them. 2. A centrifugal extractor according to claim 1, characterized in that the vertical partitions are conical. Sources of information taken into account in the examination 1. USSR author's certificate No. 544444, cl. On 01 D 11/04, 1975.