A cable extractor and cable extractor assembly

Abstract

This utility model discloses a solenoid extractor and a solenoid extractor assembly, belonging to the field of solenoid extractors. The solenoid extractor includes: an extraction unit, which includes an extraction tube, a condenser tube, a steam tube, and a siphon return tube, wherein the condenser tube, the steam tube, and the siphon return tube are respectively connected to the extraction tube, and the siphon return tube includes a U-shaped section; a stirring unit, which stirs the material in the extraction tube; and a temperature control unit, which includes a housing, which covers the outside of the extraction tube, and a water-containing cavity is formed between the extraction tube and the housing, and the surface of the housing is provided with a water inlet and a water outlet.

Description

Technical Field

[0001] This utility model belongs to the field of chemical analysis equipment, specifically relating to a sox extractor for separating and purifying polymers. Background Technology

[0002] In the field of polymer science, Soxhlet extraction and dialysis are commonly used and effective methods for separating polymers with different solubility properties, or for separating and purifying similar polymers with different molecular weights. Soxhlet extraction is mainly used to separate two solid polymers with different solubility properties. Its advantage lies in achieving polymer separation through continuous cyclic dissolution, saving residual solvent, and reducing environmental pollution. Dialysis involves placing polymers with different molecular weights in a dialysis bag with a specific molecular weight cutoff. The dialysis bag is then placed in a co-solvent. Polymers with molecular weights lower than the cutoff value of the dialysis bag pass through small holes in the dialysis bag into the solvent outside the bag, while polymers with molecular weights higher than the cutoff value remain inside the bag, thus achieving polymer separation. However, dialysis requires constant solvent replacement, resulting in significant solvent consumption and potential environmental pollution.

[0003] Soxhlet extraction requires a Soxhlet extractor. Existing Soxhlet extractors typically include an extraction tube and a condenser. For example, Chinese patent CN204073487U discloses an ultrasonic Soxhlet extractor, which stirs the solution inside the extraction tube by inserting an ultrasonic probe, accelerating the dissolution and separation of solid polymers. Its drawback is that this method still cannot overcome the limitation of Soxhlet extractors being only suitable for separating and purifying solid polymers. Therefore, developing separation equipment that can separate both solid polymers with different solubilities and liquid polymers is of significant importance. Simultaneously, the developed equipment must also achieve stirring of the extraction tube to accelerate substance separation.

[0004] At the time, the temperature inside the extraction tube of the existing device was difficult to control accurately, affecting the reaction separation and purification effect. Furthermore, the existing siphon reflux tube had a U-shaped section; the liquid and gas entering the U-shaped section from the extraction tube were at high temperature and pressure, increasing the difficulty of siphoning. Additionally, gas easily formed bubbles inside the U-shaped tube, affecting the continuity of the siphon reflux. Therefore, it was necessary to develop a new device that could control the temperature of the liquid inside the extraction tube and the gas inside the U-shaped tube. Utility Model Content

[0005] The purpose of this invention is to provide a Soxhlet extraction device that can be used for the separation and purification of both common solid and liquid substances. It also solves the problems of high cost and environmental pollution associated with conventional dialysis bag methods for polymer purification, which require constant solvent replacement. Furthermore, it addresses the issues of uncontrollable temperature and lack of material agitation within the extraction tube of the Soxhlet extraction device; and resolves problems such as excessively high temperature in the U-shaped section of the siphon reflux tube, high gas pressure on the side connected to the extraction flask, easy generation of bubbles, discontinuous siphoning, and difficulty in siphoning.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a solenoid extractor for separating and purifying polymers, comprising an extraction flask, an extraction tube, a condenser, a siphon reflux tube, and a steam tube. The lower end of the condenser is connected to the upper end of the extraction tube, the upper end of the steam tube is connected to the upper part of the extraction tube, the lower end of the steam tube is connected to one end of the siphon reflux tube and the extraction flask, and the other end of the siphon reflux tube is connected to the bottom of the extraction tube at a height of 1-2 cm. The siphon reflux tube and the steam tube are located on the same side of the extraction tube, and the siphon reflux tube is located inside the steam tube.

[0007] Preferably, the bottom of the extraction tube is flat and can be placed on a magnetic stirrer, and its diameter is any one of 5cm, 8cm, 12cm, and 20cm.

[0008] Preferably, the upper end of the steam pipe is fixed to the upper part of the extraction pipe and is connected to the extraction pipe, and the lower end of the steam pipe has a frosted port that can be connected to the extraction bottle; the steam pipe is preferably a steam pipe with a larger diameter and thicker wall, which can withstand the weight of the extraction pipe and improve the safety of the entire device.

[0009] Preferably, the steam pipe is right-angled, with the right-angle bends being arc-shaped.

[0010] Preferably, the connection between the siphon return pipe and the lower end of the steam pipe is achieved by placing the lower end of the siphon return pipe inside the lower end cavity of the steam pipe.

[0011] Preferably, the siphon return pipe is a U-shaped pipe.

[0012] Preferably, the extraction tube may be equipped with a dialysis bag or cellulose filter paper tube and a magnetic stir bar.

[0013] Preferably, a magnetic stirrer is provided at the lower end of the extraction tube.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention features a flat bottom for both the extraction tube and the shell, facilitating placement of the extraction tube on a magnetic stirrer. Adding a stir bar to the extraction tube significantly accelerates the separation rate. A temperature control unit on the outer layer of the extraction tube precisely controls the temperature of the liquid inside. The U-shaped section of the siphon reflux tube is integrated into the temperature control unit, controlling its temperature, reducing or liquefying the gas entering the extraction bottle, preventing high pressure on the connected side and the formation of bubbles in the U-shaped section, thus improving siphon continuity and capacity. Placing a dialysis bag with a specific molecular weight cutoff in the extraction tube significantly improves the separation and purification of polymers with similar solubility but different molecular weights, achieving the goals of solvent conservation and reduced environmental pollution.

[0015] This device features a flat bottom for the extraction tube, allowing it to be placed on a magnetic stirrer. Stirring of the solution is achieved by adding a magnetic stir bar inside the extraction tube. Significantly different from traditional solenoid extractors where the bottom of the tube is connected to the extraction flask, this device achieves liquid circulation and reflux by connecting one end of the siphon reflux tube to the lower end of the vapor tube. Positioning the end of the siphon reflux tube connected to the extraction tube 1-2 cm above the bottom of the tube ensures the stir bar remains submerged after each reflux, facilitating proper stirring. Separating the lower end of the vapor tube from the lower end of the extraction tube increases the distance between the extraction flask and the tube, making it easier to place the tube on the stirrer. This invention not only possesses the functions of a conventional solenoid extractor but also, by adding a dialysis bag to the extraction tube, enables the separation and purification of liquid mixtures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the device structure of this utility model without a temperature control unit; Figure 2 This is a schematic diagram of the device structure with a temperature control unit according to this utility model; In the diagram: 1-Condenser; 2-Extraction tube; 3-Steam tube; 4-Siphon reflux tube; 5-Extraction bottle; 6-Dialysis bag; 7-Magnetic stir bar; 8-Magnetic stirrer; 9-Shell. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 2As shown in the figure, this embodiment discloses a soxhlet extractor for separating and purifying polymers, including an extraction unit, a temperature control unit, and a stirring unit. The temperature control unit controls the temperature of the material in the extraction unit, and the stirring unit stirs and mixes the material in the extraction unit.

[0019] like Figure 1 The diagram shown is a schematic of the extraction unit and stirring unit in this embodiment, i.e., a structural schematic without a temperature control unit. The extraction unit includes an extraction tube 2, a condenser tube 1, a steam pipe 3, and a siphon reflux pipe 4. The condenser tube 1, steam pipe 3, and siphon reflux pipe 4 are respectively connected to the extraction tube 2. The extraction tube 2 is used to contain and stir the material. The heated solvent vapor in the extraction bottle 5 enters the extraction tube 2 through the steam pipe 3 and then enters the condenser tube 1. The condenser tube 1 condenses the heated solvent vapor into a liquid state, allowing it to drip back into the extraction tube 2, preventing solvent evaporation loss. The siphon reflux pipe 4 includes a U-shaped section. When the solvent liquid level in the extraction tube 2 rises to the top of the U-shaped section of the siphon reflux pipe 4, the liquid forms a siphon effect due to the difference in gravity, instantly drawing all the solution (containing the target component) in the extraction tube 2 back to the bottom flask, completing one reflux cycle.

[0020] The upper end of the steam pipe 3 is fixed to the upper part of the extraction pipe 2 and is connected to the extraction pipe 2. The lower end of the steam pipe 3 is a frosted port and is connected to the extraction bottle 5. The steam pipe (3) is a right-angle shape and the right-angle bend is an arc shape. The extraction pipe 2 is equipped with a dialysis bag 6 or a cellulose filter paper tube and a magnetic stir bar 7.

[0021] In the improved solution, in order to precisely control the temperature of extraction tube 2, such as... Figure 2As shown, in this embodiment, a temperature control unit is provided in the extraction tube 2. The temperature control unit includes a housing 9, which covers the outside of the extraction tube 2, forming a water-containing cavity between the extraction tube 2 and the housing. The surface of the housing is provided with an inlet and an outlet. The surface of the housing 9 is provided with multiple channels for the condenser 1, steam pipe 3, siphon return pipe 4, etc., to pass through, or can be processed into an integrated structure. The temperature of the extraction tube 2 can be precisely controlled through the inlet and outlet, so that the liquid in the extraction tube 2 is within the optimal temperature range, facilitating the extraction of the target material from the dialysis bag 6 or cellulose filter paper cartridge at the optimal rate. In a more specific embodiment, the U-shaped part is accommodated in the cavity between the extraction tube 2 and the housing. When in use, the gas temperature and pressure on the side of the U-shaped section connected to the extraction bottle 5 are relatively high, which is not conducive to siphoning. At the same time, bubbles are easily generated in the U-shaped section, affecting the continuity of siphoning and further reducing the siphoning efficiency. By accommodating the U-shaped section in the cavity between the extraction tube 2 and the shell, the overall temperature of the U-shaped section can be reduced, the gas coming to the extraction bottle 5 can be reduced or liquefied, and high pressure and bubbles can be avoided, which is conducive to the siphoning of the siphoning return tube 4.

[0022] In use, the existing extraction bottle 5 is directly connected to the lower end of the extraction tube 2. Sometimes, in order to increase the precipitation of materials, it is necessary to stir the materials in the extraction tube 2. The existing method cannot achieve stirring. Therefore, in a specific solution, the bottom of the extraction tube 2 is flat, the extraction bottle 5 and the extraction tube 2 are set separately, and the extraction bottle 5 and the extraction tube 2 are connected by the steam pipe 3 and the siphon return pipe 4. Therefore, a magnetic stirrer 8 is set below the extraction tube 2, and the bottom of the extraction tube 2 is placed on the magnetic stirrer 8. The extraction tube 2 contains a magnetic stir bar 7 and a dialysis bag 6 or a cellulose filter paper tube. The magnetic stir bar 7 can be driven by the magnetic stirrer 8 to stir the materials in the extraction tube 2, thereby improving the precipitation rate of the target component. More preferably, the bottom of the temperature control unit housing 9 is flat, and there is a small gap between the bottom of the housing 9 and the bottom of the extraction tube 2, such as within 1 cm. The magnetic stirrer 8 is located below the housing 9.

[0023] This application also discloses a solenoid extractor assembly, including the solenoid extractor and an extraction bottle 5, wherein the extraction bottle 5 is connected to the vapor tube 3 and the siphon reflux tube 4 of the solenoid extractor.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solenoid extractor, characterized in that: include: The extraction unit includes an extraction tube (2), a condenser tube (1), a steam tube (3), and a siphon return tube (4). The condenser tube (1), the steam tube (3), and the siphon return tube (4) are respectively connected to the extraction tube (2). The siphon return tube (4) includes a U-shaped part. The stirring unit stirs the material in the extraction tube (2); The temperature control unit includes a housing (9) that covers the outside of the extraction tube (2), and a water-containing cavity is formed between the extraction tube (2) and the housing. The surface of the housing is provided with an inlet and an outlet.

2. The solenoid extractor according to claim 1, characterized in that: The U-shaped portion is housed in the cavity between the extraction tube (2) and the shell.

3. The solenoid extractor according to claim 1, characterized in that: The bottom of the extraction tube (2) is flat.

4. The solenoid extractor according to claim 1, characterized in that: The upper end of the steam pipe (3) is fixed to the upper part of the extraction pipe (2) and is connected to the extraction pipe (2). The lower end of the steam pipe (3) has a frosted port and is connected to the extraction bottle (5).

5. The solenoid extractor according to claim 1, characterized in that: The steam pipe (3) is right-angled, and the right-angle bend is arc-shaped.

6. The solenoid extractor according to claim 1, characterized in that: The extraction tube (2) is equipped with a dialysis bag or cellulose filter paper tube (6) and a magnetic stir bar (7).

7. The solenoid extractor according to claim 1, characterized in that, The stirring unit is a magnetic stirrer (8), which is located at the lower end of the extraction tube (2). The stirring unit can drive the magnetic stir bar (7).

8. The solenoid extractor according to claim 1, characterized in that, The connection point where the siphon return tube (4) extends to the extraction tube (2) is located 1-2 cm above the bottom of the extraction tube.

9. A cable extractor assembly, characterized in that, It includes a solenoid extractor as described in any one of claims 1-8 and an extraction bottle (5), wherein the extraction bottle (5) is connected to the steam pipe (3) and the siphon reflux pipe (4) of the solenoid extractor.

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