Novel liquid-liquid extraction device

Abstract

The utility model discloses a novel liquid-liquid extraction device which comprises a base, a plurality of extraction bottles are sequentially arranged on the base, inner cavities of the extraction bottles are respectively communicated with inlets and outlets, the inlets are respectively communicated with a cleaning pipeline, a gas inlet pipeline and a gas exhaust pipeline, and the cleaning pipeline comprises a first water pump. The first water pump can pump pure first water into the extraction bottle to clean the extraction bottle, the gas inlet pipeline comprises a first gas pump, the first gas pump can pump external gas into mixed liquid in the extraction bottle to quickly mix the liquid, the gas exhaust pipeline comprises a second gas pump, and the second gas pump can pump out waste gas in the extraction bottle to clean the extraction bottle. The waste gas is discharged outwards after being filtered by the filter, a switch valve is arranged at the outlet, and waste liquid discharged from the outlet can be discharged outwards after being filtered by the filter. The device is reasonable in structure, high in operation efficiency, small in pollution to human bodies and the environment and small in size.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid-liquid extraction, and specifically relates to a novel liquid-liquid extraction device. Background Art

[0002] Extraction refers to a method of using the difference in solubility or partition coefficient of a compound in two immiscible solvents to transfer the compound from one solvent to another. After repeated extractions, the vast majority of the compound is extracted. Extraction is also known as solvent extraction or liquid-liquid extraction.

[0003] However, currently in general laboratories, manual extraction methods are used to complete operations such as adding liquid and cleaning the intake air. Firstly, the efficiency is relatively low. Secondly, the solvents used in extraction are relatively harmful to the human body, and improper protection can cause harm to people. Secondly, the waste liquid and waste gas after extraction are directly discharged or stored with poor sealing, which not only pollutes the environment but also causes harm to the human body. Summary of the Utility Model

[0004] The utility model discloses a novel liquid-liquid extraction device, which solves the technical problems of time-consuming, laborious, large personal injury and large environmental pollution in the prior art, and has the technical effects of reasonable structure, high operation efficiency, small pollution to the human body and the environment, and small size of the device. The technical scheme adopted is as follows:

[0005] A novel liquid-liquid extraction device includes a base. A plurality of extraction bottles are arranged in sequence on the base. The inner cavities of the extraction bottles are respectively communicated with an inlet and an outlet. The inlets are respectively communicated with a cleaning pipeline, an air inlet pipeline and an exhaust pipeline. The cleaning pipeline includes a first water pump, and the first water pump can pump pure water into the extraction bottle to clean the extraction bottle. The air inlet pipeline includes a first air pump, and the first air pump can pump external gas into the mixed liquid in the extraction bottle to quickly mix the liquid. The exhaust pipeline includes a second air pump, and the second air pump can pump the waste gas in the extraction bottle out, and the waste gas is discharged outwards after being filtered by a filter. A switching valve is arranged at the outlet, and the waste liquid discharged through the outlet can be discharged outwards after being filtered by a filter.

[0006] On the basis of the above technical scheme, a plurality of filters are detachably embedded in the concave cavity of the base, and the plurality of filters are arranged in one-to-one correspondence with the extraction bottles.

[0007] On the basis of the above technical scheme, the extraction bottle is conical with a larger upper part and a smaller lower part. The base includes a mounting plate extending horizontally outwards. A hole for supporting the extraction bottle is arranged on the mounting plate, and the hole is in contact with the extraction bottle through a rubber pad.

[0008] Based on the above technical solution, it further includes a plug, which is used to seal the inlet of the extraction bottle, and the cleaning pipeline, the air inlet pipeline and the exhaust pipeline pass through the plug and are fixedly connected to the plug.

[0009] Based on the above technical solution, it further includes a pressure regulator provided on the air inlet pipeline to adjust the inlet air pressure.

[0010] Based on the above technical solution, the end of the cleaning pipeline extending into the extraction bottle is connected with a spray head, and the spray head includes a number of nozzles arranged in a spherical surface to efficiently clean the inner wall surface of the extraction bottle.

[0011] Based on the above technical solution, it further includes a waste liquid tank provided on the base, and the waste liquid tank is used to receive the waste liquid discharged from the outlet. A drain port communicating with the filter is provided at the bottom of the waste liquid tank.

[0012] Based on the above technical solution, it further includes a waste liquid tank and a second water pump. The waste liquid in the waste liquid tank can be temporarily stored in the waste liquid tank. A liquid level gauge is provided in the waste liquid tank, and the liquid level gauge is used to monitor the liquid level height. The second water pump can pump the waste liquid in the waste liquid tank into the filter for filtration and then discharge it.

[0013] Based on the above technical solution, the waste liquid tank includes an identification part, and the identification part is arranged in one-to-one correspondence with the outlet of the extraction bottle.

[0014] Based on the above technical solution, it further includes a controller, which is electrically connected to the first water pump, the second water pump, the first air pump, the second air pump, the pressure regulator and the liquid level gauge respectively, and the controller is also electrically connected to a touch screen.

[0015] Beneficial effects

[0016] The structure of the utility model is reasonable. The inlet of the extraction bottle is respectively communicated with the cleaning pipeline, the air inlet pipeline and the exhaust pipeline, so that automatic cleaning, automatic air inlet extraction and automatic discharge of residual gas can be realized, avoiding human injury caused by contact with reagents during the extraction process. In addition, the waste gas and waste liquid discharged from the extraction bottle can be filtered by the filter and then discharged outwards, which is beneficial to environmental protection and maintaining a good working environment in the laboratory.

[0017] In this application, there are multiple extraction bottles, which can facilitate the simultaneous extraction operations of multiple projects and improve work efficiency. The extraction bottles are detachably arranged, which is convenient for maintenance. Among them, the filter is detachably embedded in the concave cavity of the base, which is convenient for regularly updating its filter element and is beneficial to reducing pollution. Description of the drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present invention. For those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained based on the provided drawings.

[0019] Figure 1 : Schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 : Schematic diagram of the structure of the side view of the present invention;

[0021] Figure 3 : Schematic diagram of the structure at the end of the cleaning pipeline in the present invention; Detailed implementation manners

[0022] The following description and drawings fully illustrate the specific implementation manners herein, enabling those skilled in the art to practice them. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The scope of the embodiments herein includes the entire scope of the claims and all available equivalents of the claims. Herein, the terms "first", "second", etc. are only used to distinguish one element from another, and do not require or imply any actual relationship or order between these elements. In fact, the first element can also be called the second element, and vice versa. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a structure, device or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such structure, device or equipment. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the structure, device or equipment including the said element. The embodiments herein are described in a progressive manner, with each embodiment highlighting the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0023] As used herein, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In the description of the present invention, unless otherwise specified and defined, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, they can be mechanical connections or electrical connections, or the communication inside two elements. They can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] As used herein, unless otherwise specified, the term "plurality" means two or more.

[0025] As used herein, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0026] As used herein, the term "and / or" is an associative relationship describing an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0027] As Figures 1 - 3 shown, a novel liquid-liquid extraction device includes a base 1, and a plurality of extraction bottles 2 are arranged in sequence on the base 1. Specifically, the base 1 includes a mounting plate 7 extending horizontally outward. The mounting plate 7 is provided with holes for supporting the extraction bottles 2. The extraction bottles 2 are tapered with a larger upper part and a smaller lower part. The holes are in abutment with the extraction bottles 2 through rubber pads 8, so as to have a good buffering effect on the vibration of the extraction bottles 2 during the injection of liquid or intake and exhaust of gas, which is beneficial to improving the service life of the extraction bottles 2.

[0028] The inner cavities of the extraction bottles 2 are respectively communicated with an inlet and an outlet. As Figure 1 shown, the inlet and the outlet are respectively formed at the necking section, and the inlet is respectively communicated with a cleaning pipeline 4, an intake pipeline 5 and an exhaust pipeline 6. Specifically, it further includes a plug 3 for sealing the inlet of the extraction bottle 2. The cleaning pipeline 4, the intake pipeline 5 and the exhaust pipeline 6 pass through the plug 3 and are fixedly connected to the plug 3.

[0029] Among them, the cleaning pipeline 4 includes a first water pump fixedly provided on the base 1, and the first water pump can pump pure water into the extraction bottle 2 to clean the extraction bottle. The end of the cleaning pipeline 4 extending into the extraction bottle 2 is connected with a spray head. As Figure 3As shown, the nozzle head includes a number of nozzles arranged in a spherical shape to efficiently clean the inner wall surface of the extraction bottle 2. When high-pressure water is sprayed outward through the nozzles, it can effectively clean the inner wall surface of the extraction bottle 2, with more thorough cleaning and high efficiency.

[0030] The air inlet pipeline 5 includes a first air pump fixedly arranged on the base 1. The first air pump can pump external gas into the mixed liquid in the extraction bottle 2 to quickly mix the liquid. Specifically, the mixed liquid is a mixed liquid of a target substance solution and an extractant. The end of the air inlet pipeline 5 passes through the plug and extends below the liquid level of the mixed liquid, causing the mixed liquid to churn, so as to quickly and efficiently mix the liquid and improve the extraction effect. In addition, a pressure regulator on the air inlet pipeline 5 is used to adjust the intake air pressure to ensure a good intake air effect. The pressure regulator is a prior art and will not be elaborated here.

[0031] The exhaust pipeline 6 includes a second air pump fixedly arranged on the base 1. During the extraction process, the waste gas that may be generated by the interaction between the solution of the target substance and the extractant needs to be discharged after extraction. In addition, the gas that enters the extraction bottle 2 through the air inlet pipeline 5 forms waste gas after extraction and also needs to be discharged. The second air pump is used to pump the waste gas in the extraction bottle 2 out. To avoid environmental pollution by waste gas, in this embodiment, the waste gas is discharged outward after being filtered by the filter 11. The filter 11 is a prior art and will not be elaborated here. A plurality of filters 11 are detachably embedded in the concave cavity of the base 1, and the plurality of filters 11 are arranged in one-to-one correspondence with the extraction bottle 2.

[0032] A switch valve is provided at the outlet of the extraction bottle 2. After the mixed liquid stands for a sufficient time, the two-phase liquid layers under the action of gravity. The liquid containing the target substance is collected, and the other is discharged as waste liquid. In this embodiment, the waste liquid discharged through the outlet can be filtered by the filter 11 and then discharged outward. Specifically, it further includes a waste liquid tank 10 arranged on the base 1. The waste liquid tank 10 is used to receive the waste liquid discharged from the outlet. There is a drain outlet at the bottom of the waste liquid tank 10. The bottom of the waste liquid tank 10 is inclined, and the drain outlet is arranged at the lower end.

[0033] It further includes a waste liquid tank and a second water pump. The waste liquid tank is fixedly arranged at the bottom of the base 1. The waste liquid in the waste liquid tank 10 can flow under the action of gravity and be temporarily stored in the waste liquid tank. A liquid level gauge is arranged in the waste liquid tank to monitor the liquid level height. The second water pump is fixedly arranged on the base 1 and can pump the waste liquid in the waste liquid tank into the filter 11 for filtration and then discharge it.

[0034] The waste liquid tank 10 includes an identification part 102. In this embodiment, the identification part 102 is a protruding part extending upward on the side wall of the waste liquid tank 10, as Figure 1 shown. The identification part 102 is arranged in one-to-one correspondence with the outlet of the extraction bottle 2, so that it is convenient for the staff to position the collection bottle below the outlet of the extraction bottle 2.

[0035] It further includes a controller 12, which is electrically connected to the first water pump, the second water pump, the first air pump, the second air pump, the pressure regulator and the liquid level gauge respectively. The controller 12 is also electrically connected to a touch screen, which facilitates the touch operation of the staff.

[0036] Working process

[0037] First, select a suitable extractant according to the target substance solution;

[0038] Open the plug and put the target substance solution and the extractant into the extraction bottle 2 to form a mixed solution;

[0039] After that, the controller controls the intake pipeline to work, so that the target substance solution and the extractant are fully mixed, and the target substance is transferred into the extractant;

[0040] After that, the mixed solution is left standing for a set time, and under the action of gravity, two-layered liquids are formed;

[0041] After that, open the switch valve, collect the solution containing the target substance in the collection bottle, and the waste liquid flows into the waste liquid tank through the outlet and the waste liquid trough 10;

[0042] At the same time, the controller 12 controls the exhaust pipeline to work, extracts the waste gas remaining in the extraction bottle 2, and discharges it after being filtered by the filter 11;

[0043] After that, the controller 12 controls the cleaning pipeline to work, cleans the inner wall of the extraction bottle 2, and the generated waste liquid flows into the waste liquid tank through the outlet and the waste liquid trough 10;

[0044] When the liquid level gauge detects that the liquid level in the waste liquid tank reaches the set height, the second water pump pumps out the waste liquid, and discharges it outward after being filtered by the filter 11;

[0045] The above illustrates the present invention by way of example, but the present invention is not limited to the above specific embodiments. Any modification or variation based on the present invention falls within the scope of protection required by the present invention.

Claims

1. A novel liquid-liquid extraction device, characterized in that It includes a base (1), on which a plurality of extraction bottles (2) are arranged in sequence. The inner cavities of the extraction bottles (2) are respectively communicated with an inlet and an outlet. The inlets are respectively communicated with a cleaning pipeline (4), an air inlet pipeline (5) and an exhaust pipeline (6). The cleaning pipeline (4) includes a first water pump, which can pump pure water into the extraction bottle (2) to clean the extraction bottle (2). The air inlet pipeline (5) includes a first air pump, which can pump external gas into the mixed liquid in the extraction bottle (2) to quickly mix the liquid. The exhaust pipeline (6) includes a second air pump, which can pump the waste gas in the extraction bottle (2) out. And the waste gas is discharged outward after being filtered by a filter (11). A switching valve is provided at the outlet, and the waste liquid discharged through the outlet can be discharged outward after being filtered by the filter (11).

2. The novel liquid-liquid extraction device according to claim 1, wherein A plurality of the filters (11) are detachably embedded in the concave cavity of the base (1), and the plurality of filters (11) are arranged in one-to-one correspondence with the extraction bottles (2).

3. The novel liquid-liquid extraction device according to claim 2, characterized in that, The extraction bottle (2) is conical with a larger upper part and a smaller lower part. The base (1) includes a mounting plate (7) extending horizontally outwards. A hole for supporting the extraction bottle (2) is provided on the mounting plate (7), and the hole is in contact with the extraction bottle (2) through a rubber pad (8).

4. The novel liquid-liquid extraction device according to claim 3, characterized in that, It further includes a plug (3) for sealing the inlet of the extraction bottle (2). The cleaning pipeline (4), the air inlet pipeline (5) and the exhaust pipeline (6) pass through the plug (3) and are fixedly connected to the plug (3).

5. The novel liquid-liquid extraction device according to claim 1, wherein, It further includes a pressure regulator provided on the air inlet pipeline (5) to adjust the intake pressure.

6. The novel liquid-liquid extraction device according to claim 1, characterized in that, The end of the cleaning pipeline (4) extending into the extraction bottle is connected with a spray head, and the spray head includes a number of nozzles arranged on a spherical surface to efficiently clean the inner wall surface of the extraction bottle.

7. The novel liquid-liquid extraction device according to any one of claims 1 to 6, characterized in that, It further includes a waste liquid tank (10) provided on the base (1). The waste liquid tank (10) is used to receive the waste liquid discharged from the outlet. A drain port communicated with the filter (11) is provided at the bottom of the waste liquid tank (10).

8. The novel liquid-liquid extraction device according to claim 7, characterized in that, It further includes a waste liquid box and a second water pump. The waste liquid in the waste liquid tank (10) can be temporarily stored in the waste liquid box. A liquid level gauge is provided in the waste liquid box for monitoring the liquid level height. The second water pump can pump the waste liquid in the waste liquid box into the filter (11) for filtration and then discharge it.

9. The novel liquid-liquid extraction device according to claim 8, wherein The waste liquid tank (10) includes an identification part (102), and the identification part (102) is arranged in one-to-one correspondence with the outlet of the extraction bottle (2).

10. The novel liquid-liquid extraction device according to claim 9, wherein It further includes a controller (12), which is electrically connected to the first water pump, the second water pump, the first air pump, the second air pump, the pressure regulator and the liquid level gauge respectively. And the controller (12) is also electrically connected to a touch screen.

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