UA9892U - Rotor-disk mass-exchange apparatus - Google Patents

Abstract

Rotary-disk mass-exchange apparatus contains vertical housing subdivided by fixed partitions, two rotors with dispersive disks forming contact steps with the partitions, process branch pipes. Disks on each rotor are mounted in pairs, in this case, the pairs of disks of one rotor are located opposite the pairs of the disks of another rotor or displaced in the vertical plane with respect to the axes of rotor. Radial cuts with alternately bent back upward and downward flangings located on the long sides of cuts at sharp angle to the plane of the rotation of disk are executed on the disks, moreover, the cuts of upper disk are radially displaced or matched with respect to the cuts of lower disk.

Description

Description of the invention

The useful model refers to the field of chemical engineering, in particular to the rotor-disc 2 mass transfer apparatus, which can be used in the chemical technology of the processes of separation and extraction of mixtures in the liquid-liquid system, as well as for desalination and neutralization of oil, purification of wastewater containing oils , petroleum products, organic acids, phenols, metal ions, etc.

There is a known mass transfer device, in the body of which there are two rotors with flat dispersing disks, and the dispersing disks of one rotor are offset in height relative to the disks of the second rotor, and between the disks 70 there are horizontal partitions |11.

The device is inefficient due to the design features of the disks, which do not ensure sufficient efficiency of mass exchange processes. This is due to the presence of stagnant zones and significant longitudinal mixing.

Close in terms of design features is the rotor-disc mass transfer apparatus, which contains a vertical 72 cylindrical body, with fixed partitions on it, two shafts with dispersing disks, while the disks of one shaft are located between the disks of the other shaft, and the partitions are made in the form of ring segments

I21.

In the known apparatus, due to the insufficient degree of dispersion, as well as the presence of stagnant zones above and below the disks, high interphase interaction is not achieved, which causes low separation efficiency and productivity of the apparatus.

The purpose of a useful model is to create an apparatus that eliminates the mentioned shortcomings.

The goal is achieved by the fact that the rotor-disc mass transfer apparatus contains a vertical body sectioned internally by fixed partitions, two rotors with dispersing discs installed on each rotor in pairs, while the pairs of discs of one rotor are located opposite the pairs of discs of the other rotor or shifted in the vertical plane relative to rotor axes, the disks have radial slots with alternately bent up and down flanges located on the long sides of the slots at an acute angle to the plane of rotation of the disk, and the slots of the upper disk are radially offset or connected relative to the slots of the lower disk.

According to the second variant of the implementation of the useful model, the slots with the flanges of the pair of the upper disk of one rotor, bent up, and the slots with the flanges of the lower disk of the pair of the neighboring rotor, bent down, are connected.

The essence of this useful model is that the rotor-disc mass transfer apparatus contains a vertical body sectioned by fixed partitions, two rotors with dispersing disks that form contact steps with the partitions, technological nozzles, and disks on each rotor

They are installed in pairs, while pairs of disks of one rotor are located opposite pairs of disks of another rotor or offset in the vertical plane relative to the rotor axes, radial slots are made on the disks with alternately bent up and down flanges located on the long sides of the slots at an acute angle to the plane " rotation of the disk, and the slots of the upper disk are radially displaced or connected relative to the slots of the lower 8 disk. 50 In addition, the essence of the useful model also lies in the fact that the slots with the flaps of the pair of the upper disc from one rotor, bent up, and the slots of the disc of the pair of the adjacent rotor, bent down, are connected.

From" The design of the device is shown in figures 1, 2, 3, 4 1 5.

Fig. 1 shows the general view of the device, Fig. 2 - its cross section, Fig. 3 - dispersing discs, Fig. 4 - top view of Fig. 3, Fig. 5 - section А-А Fig. 4 .

According to the drawings shown in the above-mentioned figures, the rotor-disc mass transfer apparatus consists of a vertical body 1, made of two parts 2, C in the form of cylindrical segments,

Ge | rotors 4, 5 installed in the center of the respective parts 2, 3, one of the rotors can have a reverse rotation, the lower 6 and the upper 7 settling chambers. o Body 1 is sectioned internally by partitions 8. Dispersing disks 9, 10 of 20 are installed on rotors 4, 5 between partitions 8, which are located in pairs on each rotor (Fig. 3).

Pairs of disks on the rotors are located opposite or with a shift in the vertical plane relative to the rotor axes (Fig. 1).

The discs 9, 10 have radial slots 11, with flaps 12 bent alternately up and down and located on the long sides of the slots 11 at an acute angle to the plane of rotation of the disc. Slots 11 of the upper disk 9 are radially displaced or connected relative to the slots of the lower disk 10 (Fig. 4). Another option

SS o5 arrangement of a pair of disks on the rotors is such that the slots with the flanges of the upper disk pair of one rotor, bent up, and the slots with the flanges of the lower disk of the pair of the adjacent rotor, bent down, are connected.

The device is equipped with technological fittings: input 13, 14 and phase output 15, 16.

Disks in a pair and pairs of disks on adjacent rotors can be made of different wettability materials.

The device works in the following way. 60 The heavy phase continuously enters the apparatus through the fitting 13, contacts the lighter phase rising from below through the nozzle 14, and is discharged from the apparatus through the nozzle 15 of the lower settling chamber 6.

The light phase moves up and is discharged through the nozzle 16 of the upper settling chamber 7.

In the working area of the device, when the rotors 4, 5 rotate, a vortex motion of both phases occurs, while counterflows of the phases, including those from stagnant zones above and below the disks, are captured and directed by flaps 12, because the ones bent on the upper disk 9 are up, and on the lower disc 10 down, through the slits into the interdisc space, where their intensive mixing, dispersion and coalescence takes place.

In the interdisk space, the two-phase flow moves in a spiral under the action of centrifugal forces. When passing through the gap formed by flaps 12 bent down on disk 9 and up on disk 10, the speed of the two-phase flow increases, which contributes to intense vortex formation. One part of the flow is tangentially ejected from the interdisc space, receiving a significant speed, and is directed to the walls of the apparatus and, bypassing the partitions 8, passes to a higher or lower step. The other part falls into the space between the disks of the neighboring rotor and is distributed between them. There is also an interaction of flows directed towards each other and exiting from neighboring rotors, while a zone of intense vortex formation, 7/0 dispersion and restoration of the droplet surface is created between them.

This organization and creation of directed liquid flows by the dispersing elements of the discs ensures effective mass exchange on the step and in the volume of the device, and also contributes to the destruction of stagnant zones above and below the discs. The elimination of stagnant zones leads to the intensification of the mass exchange process and the increase in the productivity of the device.

Sources of information: 1. Pat. Yapony Mo48-33874, cl. VO1O 11/04, 1974. 2. A. p. USSR Mo912199, class VO1O 11/04, 1980.

Claims (2)

The formula of the invention 1. A rotor-disc mass transfer apparatus, which contains a vertical body sectioned by fixed partitions, two rotors with dispersing disks that form contact steps with the partitions, technological nozzles, which is distinguished by the fact that the disks on each rotor are installed in pairs, while pairs of disks of the same of the rotor are located opposite pairs of discs of another rotor or shifted in the vertical plane relative to the rotor axes, radial slots are made on the discs with alternately bent up and down flaps - located on the long sides of the slots at an acute angle to the plane of rotation of the disc, and the slots of the upper disc are radially offset or combined with respect to the slots of the lower disk. 2. The rotor-disc mass transfer apparatus according to claim 1, which is characterized by the fact that the slots with the flaps of the pair c from the upper disc of one rotor are bent up, and the slots of the pair of the disc of the adjacent rotor, bent down, are combined. (o) (ee) (o) . and? se) (ee) se) Ko) So 60 b5