RU81090U1 - EXTRACTOR SEPARATOR - Google Patents

Abstract

Extractor Separator. The utility model relates to the construction of mass and heat exchangers and can be used in the field of solid-phase extraction and concentration of trace elements of organic compounds. The objective of the invention is the creation of an extractor-separator, the use of which is possible for the processing of solid-phase samples, both for the flow of homogeneous and heterogeneous samples. The technical problem is solved in that the extractor-separator containing a bed with bearing assemblies, a mixing device, a rotor with a cover, a drive of the mixing device and the rotor, characterized in that the rotor is made in the form of an extraction cup with a cover and equipped with a removable manifold with a removable bucket, mixing the device is made in the form of coaxially arranged perforated cylinders that are mounted on a rotating frame with the possibility of rotation around its axis and movement in the radial direction torus, the extraction cup has a longitudinal groove located along on the inner surface. The proposed design allows several samples to be produced simultaneously with a small amount of solvent and to reduce the time for sample preparation.

Description

The utility model relates to the field of extraction and concentration of microimpurities and relates to the designs of centrifugal mass-heat exchangers used in the analysis of environmental objects and can be used for concentration and separation by solid-phase extraction and obtaining highly pure substances.

The closest in technical essence is a laboratory batch extractor (see: Concentrated traces of organic compounds. Problems of analytical chemistry. T. X - M .: Nauka, 1990. - P.109, Fig. 5.), containing a rotary bed with bearings nodes, the rotor housing with a cover, the drive of the mixing device and the rotor, the mixing device and the collector of the extract.

The disadvantage is the high complexity, design complexity, lack of versatility.

The objective of the utility model is to reduce the complexity, simplicity of design, versatility.

The technical problem is solved in that the extractor-separator containing a frame with bearing assemblies, a mixing device, a rotor with a cover, a drive of the mixing device and the rotor, according to a utility model, the rotor is made in the form of an extraction cup with a cover and is equipped with a removable manifold with a removable box,

the mixing device is made in the form of coaxially arranged perforated cylinders that are mounted on a rotating frame with the possibility of rotation around its axis and movement in the radial direction of the rotor, the extraction cup has a longitudinal groove located along the inner surface.

The solution to the technical problem allows us to ensure ease of use, reducing the time when processing solid samples by multiple extraction. The design of the apparatus allows the selection of the extract without disassembling the rotor.

Figure 1 shows the basic design of the extractor-separator, figure 2 view aa - a cross section of the rotor and view bb - interchangeable box.

The extractor-separator (Fig. 1) consists of a bed 1 with bearing units 2 and 3 and a switching clutch 4 of the actuator 5, a mixing device consisting of a rotating frame 6 and perforated cylinders 7, a rotor 8 with a cover 9, a manifold 10 and a removable box 11 The extraction cup 12 is equipped with a plug 14. The cover 9 is made with a drain hole 13.

The extractor separator operates as follows. A solid-phase sample or several samples are placed inside the perforated or mesh cylinders 7. Then they are installed on the frame 6 and placed inside the extraction cup 12, the predetermined volume is poured into it

solvent and close the lid 9 with the collector 10, with a removable casing 11 placed therein, fixed in its inner cavity, in the peripheral part. The rotor 8 assembly is installed in the bearing device 2 and 3, one of which is mounted with the possibility of movement along the axis in the horizontal direction. Install the coupling 4 of the bearing device 3 for connecting the drive with a mixing device. When you turn on the drive motor 5 is intensive mixing. Alternately, the perforated cylinders 7 are lowered into the solvent, then, under the action of centrifugal force, the solvent is separated from the sample and drained down. In the process rotates due to the friction force, the cylinders 7 receive a rotational movement, thereby intensifying the extraction process. According to a predetermined program, at the end of the extraction, the drive 5 is switched by means of a coupling 4 to rotate the rotor 8 for separation. Under the action of centrifugal force, the solvent separates from the sample and forms an annular layer on the inner surface of the extraction cup 12 and merges through the hole 13 into a removable box 11. The solvent fills the upper part of the cavity of the box 11 and does not pour out, because the hole is located below the radius. After the separation process, the drive 5 is turned off. After stopping the rotor 8, the extract overflows and occupies the lower cavity of the interchangeable box 11. Removing the extract from the interchangeable box 11 can be performed as follows. When conducting multiple extraction, the extract is taken from

box, for example, with a syringe. Then, a new portion of the solvent is poured into the extraction cup 12 through the hole in the plug, when it is installed in the combination of the holes of the extraction cup 12 and plug 14. Then, plug 14 is set to its original position. The process of the apparatus is repeated. At the end of the work, the rotor 8 is removed from the bearing units 2 and 3, disassembled. The extract with suction 11 is passed on to the following operations. In a single extraction, rotor 8 is also disassembled. Take a sample or samples from perforated cylinders. All contact surfaces are washed with solvent or degassed. The device is ready for use. The cycle can be repeated again.

The testing of this design of the extractor-separator was carried out in the methods of analysis of microimpurities of organic compounds in the environmental monitoring system, veterinary control and in the plant protection system.

Using a utility model eliminates such disadvantages as:

- low productivity - due to the need for disassembly of the rotor to remove the collection of extract after each operation;

- the need to seal the junction of the rotor housing with the cover - due to the possibility of spillage of the extract under the action of centrifugal forces;

- not universal - due to the fact that it cannot be used when processing samples with a small volume of solvent if it is necessary to obtain a large value of the extraction coefficient.

The utility model provides for single and multiple extraction, when processing one or more types of samples of the same type and reducing the time for sample preparation.

Claims (1)

An extractor-separator containing a bed with bearing units, a mixing device, a rotor with a cover, a drive of the mixing device and the rotor, characterized in that the rotor is made in the form of an extraction cup with a cover and is equipped with a removable manifold with a removable box, the mixing device is made in the form of coaxially arranged perforated cylinders that are mounted on a rotating frame with the possibility of rotation around its axis and movement in the radial direction of the rotor, the extraction cup has a Dolni groove positioned along the inner surface.