JPS588321Y2 - analytical extractor - Google Patents

Description

[Detailed description of the invention] The present invention is based on a liquid (hereinafter referred to as B) in which a substance to be extracted (hereinafter referred to as A) is dissolved, which is not mutually soluble with B.
The present invention also relates to an analytical extractor for extracting A into another liquid (hereinafter referred to as C) having a lower specific gravity than B.

The extraction operation involves mixing and stirring B in which A is dissolved and C, which is not mutually soluble with B and has a different specific gravity, to dissolve most of A in B into C, and then leave it to stand still until the specific gravity increases. The method is to separate B and C into two layers based on the difference and separate C, but when separating the upper layer C, B,! Unless the horizontal cross-sectional area of the interface with l:C is small, it is not possible to accurately and maximize the fractional capacity of C.

However, if the horizontal cross-sectional area is made small, that is, if the tank is elongated, there is a drawback that sufficient stirring cannot be achieved.

The purpose of the invention is to eliminate this drawback.

An embodiment of the present invention is shown in FIG.

The extractor of the present invention is composed of an extraction tank main body 1, a lid 2, and a banking 3. The extraction tank main body 1 and the lid 2 are tightened with screws etc. via the banking 3, and have a sealed structure. There is.

The extraction tank body 1 consists of a cylindrical upper tank 4, a spherical lower tank 5, and a connecting pipe 6 (the diameter of which is smaller than the diameters of the upper and lower tanks) that connects the lower part of the upper tank 4 and the upper part of the lower tank 5. ), a return pipe T (the diameter of which is smaller than the diameter of the connecting pipe) connecting the side surface of the upper tank 4 and the side surface of the lower tank 5, and a drain pipe 8,
A valve 9 is attached to the lower part of the drain pipe 8.

A motor 11 is attached to the lid 2 by several struts 10, and a stirring blade 13 is attached to the lower end of the shaft 12 so as to be located in the center of the lower tank 5.

In addition, the hole 140 where the shaft 12 passes through the center of the lid 2 is designed to prevent air from leaking from the gap 14 between the shaft 12 and the lid 2 when air is blown into the extraction tank body 1 from the air injection pipe 15. A banking 16 having a hole with a diameter almost the same as that of the shaft 12 is fixed by a banking presser 17.

In other words, the shaft 12 rotates while contacting the banking 16 in a circular manner.

Furthermore, a liquid injection pipe 18, an air injection pipe 15, and an extraction liquid discharge pipe 19 for injecting B and C into the extraction tank main body 1 are attached to the lid 2.

The lower ends of the liquid injection pipe 18 and the air injection pipe 15 are placed above the liquid level 20 when predetermined amounts of B and C are put into the extraction tank body 1, and the lower end of the extract liquid discharge pipe 19 is placed above the liquid level 20 between B and C. It is attached so that it is slightly above the boundary surface 21 of the two layers.

The effects of the present invention will be described below according to the extraction process.

First, predetermined amounts of each of B and C are injected from the liquid injection tube 18.

At this time, the same volume of air as the injected liquid is in the air injection tube 1.
It is discharged from 5.

In this case, the interface 21 between the two layers B and C is connected to the connecting pipe 6.
The injection amount of B or the volume of the lower tank 5 is determined so that it falls within the range of .

When the motor 11 is rotated, the stirring blade 13 rotates, and the liquid in the lower tank 5 is stirred and mixed while being subjected to centrifugal force and rises in the return pipe 7 installed at the position of the maximum diameter in the horizontal direction of the lower tank 5. Then, it is sent to the upper tank 4 and returns to the lower tank 5 via the connecting pipe 6.

In this way, while the liquid in the extraction tank body 1 is being circulated and vigorously stirred and mixed, A moves from B to C, and extraction is performed.

After stirring for a predetermined time, the motor is stopped and the liquid is allowed to stand still. Due to the difference in specific gravity, the liquid is separated into two layers: B in the lower layer and C in the upper layer.

After the mixture is allowed to stand still for a sufficient time to be sufficiently separated, air is blown into the air injection tube 15, and the upper layer C is pushed out from the extract discharge tube 19 by the pressure of the air injection tube 15, and is fractionated into a predetermined container.

At this time, C remaining in the discharge tank main body 1 is the volume between the lower end of the extract discharge pipe 19 in the connecting pipe 6 and the boundary surface 211, and the volume of B (!: the boundary surface 22 with C in the return pipe γ). Return pipe T
However, since the diameters of the connecting pipe 6 and the return pipe I are made sufficiently smaller than the diameter of the upper tank 4, the volume of the remaining C becomes very small.

By reducing the cross-sectional area of the housing, connecting pipe 6 and return pipe 7, it is possible to significantly increase the fractionation rate of C from inside the extraction tank main body 1. By providing the blades 13 and the return pipe I on the side surface of the lower tank 9 that has the maximum diameter in the horizontal direction, B and C receive centrifugal force and circulate within the extraction tank body 1, so that sufficient stirring and mixing can be achieved. A feature of the present invention is that it has the effect of making it possible.

Note that after the fractionation, the valve 9 is opened to discharge the liquid in the extraction tank body 1, and the next extraction step is performed in the same manner.

[Brief explanation of drawings]

FIG. 1 shows a longitudinal sectional view of the extractor of the present invention. In the figure, 1 is the extraction tank body, 2 is the lid, 3 is the banking that seals the gap between the extraction tank body and the lid, 4 is the upper tank, 5 is the lower tank, 6 is the connection pipe, I is the return pipe, 8 is the drain pipe, 9 is the valve, 1
0 is a column, 11 is a motor 12 is a shaft, 13 is a stirring blade,
14 is a gap formed around the shaft passing through the lid, 15 is an air injection pipe, 16 is a bending valve that seals the gap 14, 11 is a banking presser, 18 is a liquid injection pipe, 19 is an extraction liquid discharge pipe, and 20 is an extraction tank. The liquid level in the static state when a predetermined amount of B and C is injected into the main body 1, 21 is the interface between B and C in the connecting pipe in the static state, and 22 is the boundary between B and C in the return pipe in the static state. Show the face.

Claims (1)

[Scope of utility model registration request] An upper tank 4, a lower tank 5, a connecting pipe 6 having a smaller diameter than both tanks that connects the lower part of the upper tank and the upper part of the lower tank, and connects the side surface of the upper tank and the side surface of the lower tank that has the maximum diameter in the horizontal direction, and An extractor having an extract discharge pipe 19 whose lower end is located in the return pipe T1 connection pipe having a smaller diameter than the connection pipe, and a stirring blade 13 in the center of the lower tank.