SU135875A1 - Centrifugal Extractor - Google Patents

Description

Known centrifugal extractors, consisting of on the hull and vertically placed in it high-speed drum, divided by horizontal partitions into sections; in the axial part of the drum, fixed tubes are arranged for sequentially supplying vessels to the corresponding sections. The disadvantages of the well-known extractors are the insignificant manufacturer’s performance, the degree of extraction, the degree of extraction, the degree of extraction, and the complexity of the process and the selection of products.

The proposed centrifugal extractor is free from the indicated drawbacks, provides automation of extraction with high efficiency and efficiency, improves the mixture of extractants derived from the corresponding drum sections, and allows for separation of mixtures of close to each other specific substances (liquids). The centrifugal extractor is designed to equip each section with a system of tubes i of channels for self-regulating removal of stratified extractants from it with outputs to fixed ring receivers that are irikrenle 1y in the BepxHeii part of the body, and with diversions from receivers to imitating tubes in the axial part of the drum. The ends of the tubes for supplying liquids to the receiver or in the section of the drum are made in the form of nozzles. In the sections of the drum, coaxial partitions with short, open ends are installed in them.

Fig, 1 shows a centrifugal extractor; in fig. 2 is an extractor, a section along the .4-.4 in FIG. one; on . 3 - 1chest technologist scheme of liquid flows in the extractor.

In the cylindrical vertical casing / there is a high-speed drum 2, rotated from an external water supply port 3. The drum 2 is divided by horizontal annular partitions 4 into sections, 13 of which correspond to one extruded stun. Inside the drum 2 in the axial part of it is placed a beam permanently fortified No. 135875

These tubes 5 for the sequential supply of liquids to the corresponding sections through the nozzles 6. When a mixture of liquids hits the rotating surface, the sections undergo vigorous crushing and additional mixing. Under the action of centrifugal force, which is many times greater than the force of gravity, the mixture of liquids is pressed against the wall of the section and stratified. In the case of a small difference in the specific gravities of the mixture liquids in each section of the drum 2, coaxial cylindrical partitions 7 are installed with short, open ends of the nozzles 8. In the upper horizontal annular partition enclosing the section there are radial through channels 9 communicating with the section cavity through the opening 10 through which passes lightly fluid; the withdrawal of a heavy liquid is carried out through an underwater tube 11, the bent end of which is inserted into the opening of the radial channels 12. The output of a light liquid through the canals 9 and the heavy liquid through the channels 12 is carried out according to the separation vessel principle. Fluid flows in these radial channels are broken and displaced with suction from the central cavity with air (or an inert gas), forming an air-liquid mixture; in the peripheral part, the mixture is compressed to a pressure sufficient to lift the fluid to the appropriate height through pipes 13 attached to the outer wall of the drum 2. In the upper part of the extractor body, in the annular space between the body and the drum 2, fixed stationary receivers 14-19 are installed; slots 20 facing the axis of rotation. In these slits, the sprayed air-liquid mixture is ejected through the nozzles 21 mounted on the tubes 13.

Two receivers serve for extracting waste products and are equipped with discharge tubes, while the remaining receivers play the role of mixers for intensive mixing of liquids between themselves and with fresh reagents supplied to them; from these remaining receivers, the mixtures obtained and them under the action of the force of gravity flow through the taps and tubes 22 to supply the drum sections.

From the pressurized vessel 23, through a metering device 24, the light fluid flows into the receiver 14. In the same receiver, the nozzles 21 rotating together with the barbial 2 nozzle 21 enter a spray state with a heavy fluid that has been worked out in the second section spiz. Both liquids are vigorously stirred in the receiver, and the mixture of the ion tube 2 through the nozzle 6 enters the liquefying part of the lower section, in which the mixture moves upwards and gradually stratifies. After separation of the liquid, the output is separated: light through channel I and heavy through channel 12. Light liquid is withdrawn from the lower section to receiver 15, and heavy to the receiver 19. Receiver 15 also receives heavy liquid, spent in the third section from the bottom. . After their displacement in the receiver 15, the fluids flow down through the tube 22 and through the nozzle 6 fall on the delamination in the second section from the bottom.

Similarly, the fluid sections worked out in the second stage are light and easy to reach the corresponding receivers. The receiver 16 also receives heavy liquid from the upper section. Mixed in the receiver 16, the fluid is fed to the bundle in the third section from the bottom. From this section, the light liquid is sent to receiver P, into which from the pressure vessel 25 a fresh heavy extractant flows through the metering and measuring device 26. From the receiver / 7 the mixture enters the upper section of the drum 2. The light liquid that has been processed in the upper section is directed to the receiver 18, from which the extraction product is extracted.

Subject invention

Claims (3)

1. A centrifugal extractor consisting of a body and a high-speed drum vertically spaced therein, divided by horizontal annular partitions into sections with stationary tubes placed in the axial part of the drum for sequential supply of liquids to the corresponding sections the fact that, in order to provide the ability to automate the extraction process with high productivity and efficiency, the device is equipped with each section of the system of tubes and channels for self-regulation separate separation of stratified extractants from it with dispensing them into fixed ring receivers, attached in the upper part of the body, and with branches from these receivers to supply tubes in the axial part of the drum. 2. A centrifugal extractor according to claim 1, of l and h and l and ii with the fact that for the mutual dispersion of extractants withdrawn from the corresponding sections of the drum to stationary receivers, as well as for feeding each section with a mutually dispersed mixture of extractants, the ends of the tubes for supplying liquids to receivers or in the drum section are made in the form of nozzles. 3. The apparatus according to claim 1, characterized in that, in order to provide for the process of separation of the mixture with the relative densities of the fluids forming them, the coaxial cylindrical partitions with short, open from the ends pipes in them are installed in the drum sections.