RU2775082C1 - Unit for the production of emulsions - Google Patents

Abstract

FIELD: chemical industry.

SUBSTANCE: invention is intended for the production of stable emulsions and can be used, for example, in the chemical and food industries. The unit for producing emulsions contains loading and unloading devices, a vertical housing with a lid, a vertical shaft with a disk placed on it, and a conical nozzle on the inner surface of which ribs are installed. A reflector is placed coaxially with a conical nozzle, and under the housing there is a container for collecting the emulsion, equipped with a pump and connected by a pipeline to the receiving chamber. The design features of the proposed unit for the production of emulsions are that an agitator is located in the container for collecting the emulsion, the shaft of which is offset from the axis of the unloading device, and swirlers are installed in the pipeline between the pump and the receiving chamber, made in the form of plates with holes that can move relative to the pipeline in the radial direction.

EFFECT: high-quality dispersion, mixing of droplets of the initial liquids and obtaining a stable homogeneous emulsion.

1 cl, 1 dwg

Description

The present invention is intended for obtaining stable emulsions and can be used in chemical, food and other industries.

A centrifugal dispersant-mixer is known, comprising a housing, pipes for inlet and outlet of the processed medium, a closed impeller and perforated rings arranged concentrically to the impeller, two perforated rings are concentrically rigidly fixed on the periphery of the impeller with a radial gap relative to the perforated ring located between them, which is fixedly mounted on the body of the perforated ring . [RF patent for utility model No. 81098, IPC B011J 9/00, publ. 03/10/2009, BI No. 7].

The disadvantages of this device include a low degree of dispersion and mixing of the source liquids, leading to insufficient stability of the resulting emulsion.

Closest to the proposed invention is a unit for producing emulsions, containing a device for loading and unloading, a vertical cylindrical body with a cover, a vertical shaft with a disk placed on it, and a conical nozzle, on the inner surface of which ribs are installed, a reflector is coaxially located inside the conical nozzle, consisting from a set of horizontal rings, the distance between which increases in proportion to the decrease in the volumetric flow density over its cross section, and under the housing there is a container for collecting the emulsion, equipped with a pump and connected by a pipeline to the receiving chamber [RF Patent 2441694, IPC B01F 3/08, publ. February 10, 2012, BI No. 4].

The disadvantages of this device include a low degree of dispersion and mixing of the source liquids, leading to insufficient stability of the resulting emulsion.

The objective of this invention is to create a unit for producing emulsions, which makes it possible to qualitatively disperse and mix drops of initial liquids, which will make it possible to obtain a stable emulsion.

The task is achieved by the fact that in the unit for producing emulsions, containing devices for loading and unloading, a vertical housing with a cover, a vertical shaft with a disk placed on it, a conical nozzle, on the inner surface of which ribs are installed, a reflector is placed coaxially to the conical nozzle, and under the casing there is a container for collecting the emulsion, equipped with a pump and connected by a pipeline to the receiving chamber.

Distinctive features of the proposed unit for producing emulsions is that in the tank for collecting the emulsion there is a stirrer, the shaft of which is offset from the axis of the unloading device, and in the pipeline between the pump and the receiving chamber there are swirlers made in the form of plates with holes that can move relative to the pipeline in the radial direction.

In FIG. 1 shows a plant for producing emulsions.

The unit for producing emulsions contains devices for loading 1 and 2 and unloading 3, a vertical housing 4 with a cover 5. In the internal volume of the vertical housing, a vertical shaft 6 is installed with a disk 7 placed on it and a conical nozzle 8. Ribs 9 are installed on the inner surface of the conical nozzle 8 A reflector 10 is placed coaxially with the conical nozzle 8. Under the body 4 there is a container 11 for collecting the emulsion, equipped with a pump 12 and connected by a pipeline 13 to the receiving chamber 14.

In the tank 11 for collecting the emulsion there is a stirrer 15, the shaft of which is offset from the axis of the unloading device 3. In the pipeline 13, between the pump 12 and the receiving chamber 14, swirlers 16 are installed, made in the form of plates with holes, which can move relative to the pipeline 13 in the radial direction . The unit works as follows.

Immiscible liquids come from the loading devices 1 and 2 into the receiving chamber 14, from which they enter the rotating disk 7. Under the action of centrifugal forces, the liquids are thrown to the periphery of the disk 7 and are captured by the ribs 9. The liquids interact with the ribs 9, are crushed, flow around them, this leads to mixing and obtaining an emulsion. Next, the pre-formed emulsion moves along the conical nozzle 8 and is sprayed. The flow of drops hits the reflector 10, enters the lower part of the body 4. In the process of spraying and hitting the bump stop, intensive mixing occurs. Further, the emulsion flows through the unloading device 3 into the container 11 for collecting the emulsion, where it is finally mixed with a mixer 15. In order to increase stability and additional mixing, part of the emulsion from the container 11 using the pump 12 through the pipeline 13, which has swirlers 16, is sent to the receiving chamber 14 for remixing.

Due to the fact that the agitator shaft 15 is offset from the axis of the unloader 3, the mixing process is intensified. This is explained by the fact that the emulsion is supplied not to the center, but to the rotating organs of the agitator 15, with which the flow collides, it is crushed and flows around multiple times.

In order to intensify mixing in the pipeline 13, swirlers 16 are installed between the pump 12 and the receiving chamber 14, made in the form of plates with holes. When interacting with swirlers 16, intense turbulence of the emulsion flow occurs, multiple division of the flow into jets when flowing through the holes and, as a result, intensive mixing.

Due to the fact that the swirlers 16 have the ability to move relative to the pipeline 13 in the radial direction in this unit, it is possible to obtain emulsions of various types by setting the required displacement of the swirlers 16.

The claimed unit for obtaining emulsions allows you to qualitatively disperse and mix drops of the initial liquids and obtain a stable homogeneous emulsion.

Claims (1)

Unit for producing emulsions, containing devices for loading and unloading, a vertical body with a cover, a vertical shaft with a disk placed on it, a conical nozzle, on the inner surface of which ribs are installed, a reflector is placed coaxially with the conical nozzle, and under the body there is a container for collecting the emulsion, equipped with pump and connected by a pipeline to the receiving chamber, characterized in that in the tank for collecting the emulsion there is an agitator, the shaft of which is offset from the axis of the unloading device, and in the pipeline between the pump and the receiving chamber there are swirlers made in the form of plates with holes that can move relative to pipeline in the radial direction.

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