RU1398139C - Centrifugal extractor - Google Patents

Abstract

The invention relates to chemical technology and can be used to carry out semi-continuous flow separation processes. The extractor comprises a rotatable housing 1, which is divided inside by annular horizontal partitions dividing it into mixing 2 and settling 3. chambers, a central tube 5 for supplying the initial solutions, mixing 4, 13 and suction 11 devices for the removal of liquids. In order to preserve the volumes and phase composition in steps after stopping the extractor, the mixing chambers, beginning with the second, are equipped with cylinders located inside these chambers and preventing the liquid from flowing from the upper steps to the lower ones, the inner diameter of the cylinders corresponding to the size of the hydraulic locks of the delamination chambers, and the height of the cylinders is determined by the retained volume of the phases. In addition, the mixing chambers are equipped with suction devices located at the shortest distance from the bottom of the mixing chambers, displaced as far as possible to the center outward to the upper part of the extractor. 1 Ш1.

Description

Igi) () mercury refers to centrifugal extraction apparatus designs; It can be used in chemical technology for conducting semi-counterflow separation processes, as well as in preparative radiochemistry as an extraction generator for periodically accumulating and extracting daughter radioactive elements of their irradiated product.

The purpose of the invention is the preservation of volumes and phase composition in stages after stopping the extractor.

The drawing shows a General view of a |

The extractor consists of a rotating casing 1, inside of which there are mixing chambers 2, for delamination 3, fixed uv mixers 4, central tube | 5, tubes 6 for the withdrawal of light phase | 1, a sampling chamber 7, cylinders 8, lintel walls 9, bottoms 10

cm

of performing chambers

at the same time, the role of hydraulic locks / side 11, annular gap 12, and mixer 13, located in the first stage. The proposed extractor works as follows.

A certain volume of immovable heavy phase is introduced into the lower stage of the housing t through the central tube 5 - the initial solution “The second and third stages are filled in the same way; first, but with the help of kg tubes AND. Raftvors served in the second and three

and the shape of the corner mixers. The sample with the emulsion from the mixing chamber 2 through the annular gap 12 enters the delamination chamber 3, where under the action of centrifugal forces it delaminates into light and heavy phases. As the light phase enters from the mixing chamber 2 into the delamination chamber 3, it reaches the level of the hydraulic lock 10, then rises along the inner surface of the cylinder 8 and enters the second mixing chamber 2. The height and inner diameter of the cylinder 8 can be determined by calculation. And the mildly depleted emulsion through the annular gap 12 is returned again to the mixing chamber 2, creating a recirculation in each stage. In the next stages, the hydrodynamic processes are repeated, and the mobile light phase in the form of an extract enters from the last upper delamination chamber - 3. Through a hydraulic trap 10 into a selection chamber 7, from where it is removed from the extractor by a tube 6. After carrying out the extraction separation process, the apparatus stops and the solutions drain to the bottom of each stage and do not

  mix with each other. The emptying tubes 11, which are located at their shortest distance from the bottom with their lower edge, allow

35. remove the solutions from each step, and the cylinders 8 hold the solutions in the appropriate steps.

The extractor compares favorably with

Thousands of steps may vary in their JJQ-known centrifugal extractor

mu composition, depending on the purpose of pro - ongoing work. After filling the apparatus, the electric motor is started, and the extractor housing rotates. In this case, the tubes 11 are in contact with the solutions located in the extractor housing, since under the influence of centrifugal forces, the liquid bones are discarded to the periphery. turn on the dosing device and begin to deliver a moving light halyard, - extractant with a predetermined flow rate, into the first mixing chamber 2 through the central tube 5. Uniform feeding of the livestock, milkers is carried out by a sprinkler 13 in the first stage and mixing devices 4, starting from the second stage, which ; can be performed for example

5

0

5

By what it gives, it is possible to select the separated fluids step by step after it has been stopped while maintaining the volumes and phase composition.

Claims (1)

The claims A centrifugal extractor comprising a rotating casing, divided inside by circular horizontal partitions, into mixing chambers with bottoms and settling chambers with a water seal, a central tube for supplying initial solutions, mixing devices and devices for removing liquids, characterized in that, in order to preserve volumes and phase composition in steps after stopping the extractor, mix 3 13981394 In addition to the lower chamber, the chambers are equipped with drying devices; for example, they are mounted on their coaxial bottoms — for example, in the form of tubes, pipes, and the casing is completely enclosed by cylindrical sections at the bottom of the tube, the inner diameter of which chambers, - outside the cor- is equal to the size of the water seal and the valve.