SU1266038A1 - Method of separating suspensions in centrifugal force field - Google Patents

Abstract

) A METHOD FOR DIVIDING SUSPENSIONS IN THE FIELD OF CENTRIFUGAL FORCES by acting on a slurry by a twisted gaseous flow supplied together with a stream of separable suspension, characterized in that, in order to increase the efficiency of the separation process by reducing the humidity of the final product and making it possible to separate the suspensions. the density of the liquid and the solid phase, the initial suspension is fed from the bottom, separated from it. a part of the liquid and is affected by the swirling gas flow the remaining part of the suspension.

Description

F

I The invention relates to filtering and may be isolated in chi; Chemical and other industries for separating granulated products from liquids. .

The aim of the invention is to increase the efficiency of the separation process by reducing the moisture content of the final product and realizing the possibility of separating suspension with a different ratio of liquid density and solid phase.

The drawing schematically depicts a device for carrying out the described method.

The device contains a Thickener, which includes a pipe 1 for supplying and thickening a suspension with slots 2, a fitting 3 for tangentially introducing gas and a separator consisting of an Aperture cylindrical coy shell 4 and a housing 5 with a fitting 6 for venting gas and a solid phase, fitting 7 for removal of fluid and fitting 8 for gas to exit, bone from the thickener is discharged through. Building 9 ishtutser Sh.

The separation of the suspension according to the proposed method is carried out as follows. .

The initial suspension is fed to the lower part of the pipe 1. Due to the velocity or pressure, the density difference rises. Through the slits 2, made in the side wall TJ} y6) a 1 tto, the entire circumferential / part of the main part of the drain fluid is in the housing 9 and then through the fitting 10 is removed from the apparatus. The gas stream is fed into the pipe 1 tangen. Socially through the nozzle 3. The swirling gas stream picks up the condensed

the suspension, which due to the centrifugal force is pressed against the wall of the pipe 1, and moving upward, drops onto the perforated shell 4. The resulting centrifugal force 0 creates an increased pressure at the wall of the shell 4 by rotating the gas-liquid flow through which the liquid phase is forced through holes. Liquid collected in the housing

5 5 and through fitting 7 leads out of the apparatus. The gas stream partially passes through the sediment and the holes in the shell 4 and enters the housing 5 together with the liquid, from where it is removed through fitting 8. The solid particles separated from the liquid and part of the gas flow from the device through the fitting 6.

Example 1. Comparative experiments were carried out on the separation of a Transen polyetxhene suspension with a granule diameter of 1–5 mm. The density of the solid phase of the bull is greater than the density of the liquid phase and was

30 1280 kg / m. The data obtained before. put in table. 1. Example 2. A similar series of experiments were conducted on section H1 “& polystyrene suspensions.

35 The density of the solid phase was less than the density of the liquid phase and was 920 kg / m. The data obtained are presented in Table. 2

Table 1 .

0.63

0.64 0.47 0.32 0.14 0.23 0.07 0.21

2.9 1.74 1.32 0.79

1266038

4 Table 2

Claims (1)

(57-) METHOD FOR SEPARATION OF SUSPENSIONS IN THE FIELD OF CENTRIFUGAL FORCES by exposing the suspension to a swirling gas stream supplied together with the stream of the separated suspension, characterized in that, in order to increase the efficiency of the separation process by reducing the moisture content of the final product and making it possible to separate suspensions, with different ratio of the densities of the liquid and the solid phase, the initial suspension is served from the bottom, separated from it. part of the liquid and act with a swirling gas stream on the remainder of the suspension.