SU582821A1 - Apparatus for conducting reactions in liquid media - Google Patents

Description

one

The invention relates to the equipment of the chemical industry, the construction of building materials and is intended for carrying out rapid chemical reactions in liquid media with the production of solid or viscous products that are prone to adhesion.

A device for mixing liquids is known, which consists of two rotating around a vertical axis coaxial hollow chambers, lowered by their ends in a liquid to be mixed. The formation of films of mixed liquids occurs on the inner surfaces of the chambers. The mixing of liquid networks begins on the inner surface of the larger chamber at the point of confluence of liquid films and then passes with a joint flow until the mixture leaves the device.

The design of the known device does not allow for carrying out rapid reactions with the formation of solid and viscous products that are prone to adhesion, due to the possible deposition of reaction products on the walls. Removal of growths is associated with stopping the apparatus and cleaning it.

Closest to the present invention is a device, in the case of which three coaxial hollow chambers are mounted, the two outer killer tubes have tangential nozzles for introducing reagents 2.

This device is designed to produce sludge by continuously mixing the bulk material with a liquid.

If the coaxial chambers are located above the surface of the liquid, they also do not provide high-quality mixing, due to the fact that the resulting unclosed liquid cylindrical films do not intersect in free space, are crushed into droplets and fall down almost without interaction.

The purpose of the present invention is to intensify the process.

For this purpose, in a device for carrying out reactions in liquid media, the lower part of the hollow chambers is equipped with attached nozzles, the outer of which has the shape of half rotation.

FIG. 1 shows the proposed device; figure 2 - node I figure 1; on fig.Z - section aa of figure 1.

Claims (2)

The device contains two coaxially mounted hollow chambers 1 and 2 with tangential nozzles 3 and 4 for introducing reagents. Dome-forming nozzles 5 and 6 are rigidly attached to the lower part of chambers 1 and 2. Nozzles 5 have a paraboloid of rotation or conic surface, and nozzle 6 is half of the surface of rotation, for example, sphere {or ellipsoid). A device for carrying out reactions in liquid media operates as follows. Fluids to be displaced and reacted are fed into chambers 1 and 2 through nozzles 3 and 4. Under the action of high peripheral velocities and, consequently, the centrifugal forces of the fluid take the form of films that move from top to bottom. At the outlet of the nozzles 5 and 6, the liquids move in the form of hollow circular films. The outer layer of the film formed by the nozzle 6 has the form of a hollow dome that is closed symmetrically with respect to the axis of the chambers. The liquid, emerging as a circular film from the inner nozzle 5, is drained from the outer one and reacts with it. The mixture then moves down and proceeds to further processing steps. Thus, the proposed device allows to intensify the process of displacement and chemical transformation of liquid reagents to produce products that are prone to adhesion. This eliminates the overgrowth of the internal surfaces of the apparatus with reaction products. Claims An apparatus for carrying out reactions in liquid media, comprising coaxially mounted hollow chambers with tangential nozzles for introducing reagents, characterized in that in order to intensify the process, the lower part of the hollow chambers is provided with attachments attached thereto, the outer of which has the shape of half the surface of revolution. Sources of information taken into account in the examination: 1. The author's certificate of the USSR 309724, CL. 01 F 9/10, 1971, 2. US patent I 3741533, cl. 259-4, 1973. J fui.i J Surface paraboloid of rotation