SU575110A2 - Centrifugal extractor - Google Patents

Description

one

The invention relates to devices for contacting two immiscible liquids, 1 for example for extracting a liquid-liquid system.

The proposed apparatus is of the type of centrifugal countercurrent contact devices with a non-pressurized flow of liquids into the working space.

Known apparatus for the main auth.St. 306856, containing a bent shaft with a rotor fixed on it 4, in which contact devices are installed, made in the form of radial plates (profiled elements). In the center of the rotary shaft, there is a channel for introducing a heavy phase of liquid into the extractor, and through the annular channel of this shaft, the projected light phase is withdrawn. The movement of light and heavy liquids in counterflow is produced along opposite planes of contact devices. The disadvantage of this design is the relatively short phase contact time.

The purpose of the invention is to increase the contact time of the phases while maintaining the performance of the already known apparatus.

For this purpose, the radial plates are made with slots located on the side: plates framed to the center of the apparatus. Thanks to this dispersed drop

The phases, breaking off from the end of each flat plate of the contact device, fall into these slots and move along the entire length of each subsequent plate of the contact device, and not part of its length. Each slot is provided with a partition directed to the center of the apparatus and attached to the side of the plate facing the periphery of the apparatus,

therefore, dropping is prevented at high loads (flow rates) during the heavy phase.

The drawing shows the proposed device, the cross-section.

The centrifugal apparatus for contacting liquids consists of a rotating shaft 1 on which the rotor 2 is fixed. On the rotating rotor there are contact elements 3 made of plates 4,