Automatic extraction device

Abstract

The utility model discloses an automatic extraction device which comprises a working table, an extraction device, a first extraction device and a second extraction device, wherein the working table is provided with a closed space; the extraction bottle is arranged in the closed space; the conveying assembly is arranged on the workbench in a penetrating mode and communicated with the extraction bottle, and the conveying assembly is used for conveying fluid to the extraction bottle and taking out the fluid in the closed space; the stirring assembly is at least partially arranged in the closed space and comprises a stirring part, and the stirring part is arranged in the extraction bottle to stir liquid in the extraction bottle. According to the automatic extraction device disclosed by the embodiment of the utility model, the extraction process is carried out in the closed environment through the closed space, and toxic gas possibly generated in the extraction process is difficult to leak to the outside, so that the harm to the body health of operators and the external environment is reduced, and the extraction process is safer and more controllable; and the extraction operation is performed through the conveying assembly and the stirring assembly, so that the workload of operators and the uncertainty of manual operation are reduced, and the extraction effect and the extraction efficiency are favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction devices, and more specifically, to an automatic extraction device. Background Art

[0002] Extraction is the process of transferring the target compound in a mixture into another immiscible solvent to achieve separation and purification. In experiments, a separatory funnel is generally used for manual oscillation extraction. Gas is easily generated during the extraction process and needs to be manually released multiple times. The gas generated during the extraction process may be toxic and easily endanger the health of the operator. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an automatic extraction device, which can perform automatic extraction operations in a closed space, reduce manual operations, and is not easy to leak toxic gases and endanger the health of operators.

[0004] According to the automatic extraction device of the embodiment of the utility model, it includes: a workbench, the workbench has a closed space; an extraction bottle, the extraction bottle is arranged in the closed space; a conveying component, the conveying component is passed through the workbench and is connected with the extraction bottle, the conveying component is used to convey fluid to the extraction bottle and take out the fluid in the closed space; a stirring component, the stirring component is at least partially arranged in the closed space and includes a stirring part, the stirring part is arranged in the extraction bottle to stir the liquid in the extraction bottle.

[0005] According to the automatic extraction device of the embodiment of the utility model, the extraction process is carried out in a closed environment through a closed space, so that the toxic gases that may be generated in the extraction process are difficult to leak to the outside, thereby reducing the harm to the health of the operator and the external environment, making the extraction process safer and controllable, and performing the extraction operation through the conveying component and the stirring component, reducing the workload of the operator and the uncertainty of manual operation, which is conducive to improving the extraction effect and extraction efficiency.

[0006] In addition, the automatic extraction device according to the above embodiment of the utility model may also have the following additional technical features:

[0007] According to some embodiments of the utility model, the workbench includes a base and a cover, the cover is covered on the base and cooperates with the base to define the closed space, the extraction bottle is placed on the base, and the conveying assembly is passed through the cover.

[0008] According to some embodiments of the utility model, the workbench has a waste tank, in which a filter purification component is provided. The filter purification component is used to purify the waste fluid in the closed space taken out by the conveying component, and the waste tank is used to store the purified waste fluid.

[0009] According to some embodiments of the present invention, the automatic extraction device further comprises: a separation component, the separation component is at least partially disposed in the closed space and is connected to the extraction bottle, and the separation component is used to separate the liquid in the extraction bottle.

[0010] According to some embodiments of the utility model, the separation component includes a shell and a centrifugal component, the shell having an inlet, a heavy phase outlet and a light phase outlet, the inlet extends into the extraction bottle, the centrifugal component is rotatably disposed in the shell, the centrifugal component rotates to suck the liquid in the extraction bottle into the shell through the inlet and separate the liquid in the shell into a heavy phase liquid with larger density and a light phase liquid with smaller density, the heavy phase outlet is used to discharge the heavy phase liquid, and the light phase outlet is used to discharge the light phase liquid.

[0011] According to some embodiments of the utility model, a light phase induction valve is provided at the light phase outlet, and a heavy phase induction valve is provided at the heavy phase outlet, the light phase induction valve is used to control the opening of the light phase outlet when the liquid at the light phase outlet is a light phase liquid, and the heavy phase induction valve is used to control the opening of the heavy phase outlet when the liquid at the heavy phase outlet is a heavy phase liquid; and / or, a baffle is provided at the inlet, and the baffle is used to control the opening and closing of the inlet.

[0012] According to some embodiments of the present invention, the stirring assembly includes a magnetic base, the extraction bottle is placed on the magnetic base, and the stirring part rotates under the magnetic force of the magnetic base to stir the fluid in the extraction bottle.

[0013] According to some embodiments of the present invention, the delivery assembly includes a peristaltic pump and a plurality of tubes installed on the peristaltic pump, the tubes connect the extraction bottle and the outside, and the peristaltic pump is used to control the flow state of the tubes.

[0014] According to some embodiments of the utility model, an air-drying component is provided in the enclosed space, and the air-drying component is used to blow air into the extraction bottle to dry the extraction bottle.

[0015] According to some embodiments of the utility model, the automatic extraction device includes: a control component, the control component is arranged on the workbench, the conveying component and the stirring component are both communicatively connected to the control component, and the control component is used to control the working status of the conveying component and the stirring component.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of an automatic extraction device according to an embodiment of the utility model;

[0019] Figure 2 yes Figure 1 A front view of

[0020] Figure 3 yes Figure 1 A top view of

[0021] Figure 4 It is a partial structural schematic diagram of a separation component according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] Automatic extraction device 100;

[0024] Workbench 10; closed space 11; base 12; cover 13; waste tank 14; extraction bottle 20;

[0025] Conveying assembly 30; peristaltic pump 31; tube body 32;

[0026] Stirring assembly 40; Magnetic seat body 41;

[0027] Separation component 50; housing 51; inlet 511; heavy phase outlet 512; light phase outlet 513; centrifugal member 52; rotating shaft 521; spiral blade 522; heavy phase induction valve 53; light phase induction valve 54; baffle 55; control component 60. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, the first feature "above", "above" and "above" the second feature may include the first feature being directly above and diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0031] During the extraction process, the mixture is first mixed with an extractant, the mixture includes an original solvent and a target compound, the extractant and the original solvent are immiscible with each other, and the solubility of the target compound in the extractant is much greater than that in the original solvent. After the mixture and the extractant are mixed, two layered fluids are formed to transfer the target compound in the mixture to the extractant.

[0032] Here, the type of extractant is not limited, and different extractants can be selected according to the different target compounds. For example, the mixture is iodine water, the original solvent is water, the target compound is iodine, and the extractant is carbon tetrachloride. After extraction, an aqueous phase (inorganic phase) and an organic phase (carbon tetrachloride solution containing iodine) are formed to separate iodine from the iodine water.

[0033] The automatic extraction device 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0034] Reference Figure 1-Figure 4 As shown, the automatic extraction device 100 according to the embodiment of the present invention may include: a workbench 10 , an extraction bottle 20 , a conveying component 30 and a stirring component 40 .

[0035] Specifically, the workbench 10 has a closed space 11, and the extraction bottle 20 is disposed in the closed space 11. The conveying assembly 30 is disposed through the workbench 10 and communicated with the extraction bottle 20, and the conveying assembly 30 is used to convey fluid to the extraction bottle 20 and to take out the fluid in the closed space 11. The stirring assembly 40 is at least partially disposed in the closed space 11 and includes a stirring part, and the stirring part is disposed in the extraction bottle 20 to stir the liquid in the extraction bottle 20.

[0036] The closed space 11 is a space separated from the outside, so that the fluid in the closed space 11 is not easy to flow to the outside, and the fluid in the outside is not easy to flow to the closed space 11. The fluid can be a liquid, a gas, a gas-liquid mixture, etc. The extraction bottle 20 is a container for storing the fluid, and the fluid stored in the extraction bottle 20 can react in the extraction bottle 20, such as mixing, separation, etc.

[0037] The conveying assembly 30 is disposed through the workbench 10 and is connected to the extraction bottle 20, and the extraction bottle 20 is disposed in the closed space 11, that is, the closed space 11 can be connected to the outside through the conveying assembly 30, so that the fluid in the closed space 11 can be transported to the outside through the conveying assembly 30, and the outside fluid can be transported to the closed space 11 through the conveying assembly 30, so as to control the connection between the closed space 11 and the outside. Here, the outside that the conveying assembly 30 communicates with is the space outside the closed space 11, and the outside can refer to the outside air, the container storing the mixture in the outside, the container storing the extractant in the outside, etc.

[0038] The stirring part can continuously stir the liquid in the extraction bottle 20, which is beneficial to speed up the mixing speed of the liquid in the extraction bottle 20. The stirring part can also intermittently stir the liquid in the extraction bottle 20, for example, stirring it in multiple times, which is beneficial to improve the mixing uniformity of the liquid in the extraction bottle 20.

[0039] When the mixed liquid is shaken, the extractant will volatilize and expand to produce gas, which affects the extraction effect, so the gas needs to be released. In some related technologies, the separating funnel is manually shaken and deflated, which requires a lot of work for the operator, and the generated gas may be toxic, which is easy to endanger the health of the operator and the external environment. In addition, the extraction effect of manual shaking is not good. After extraction, the piston of the separating funnel needs to be manually opened to take out the two fluids for separation operation. Improper manual operation can easily cause the fluid to spill, resulting in low extraction efficiency.

[0040] In the present application, the extraction bottle 20 is placed in the closed space 11, so that the extraction process is carried out in the closed space 11. The toxic gas that may be generated during the extraction process is difficult to leak into the outside air, reducing the contact between the operator and the toxic gas and the impact of the toxic gas on the outside air, reducing the harm to the operator's health and the external environment, and improving the safety of the extraction. In addition, the liquid in the extraction bottle 20 is stirred by the stirring part, and the two extracted fluids are taken out through the conveying component 30 for liquid separation operation. There is no need for manual oscillation, degassing, liquid separation and other operations, which greatly reduces the workload of the operator and reduces the uncertainty of manual operation. The fluid is not easy to spill during the liquid separation process, so that the extraction effect is better and the extraction efficiency is higher.

[0041] Taking out the gas in the closed space 11 through the conveying assembly 30 is not only beneficial to reducing the harm of toxic gas, but also can prevent the harm caused by excessive gas and excessive gas pressure in the closed space 11, and has better safety.

[0042] According to the automatic extraction device 100 of the embodiment of the utility model, the extraction process is carried out in a closed environment through the closed space 11, so that the toxic gases that may be generated during the extraction process are difficult to leak to the outside, reducing the harm to the health of the operator and the external environment, making the extraction process safer and controllable, and performing the extraction operation through the conveying component 30 and the stirring component 40, reducing the workload of the operator and the uncertainty of manual operation, which is conducive to improving the extraction effect and extraction efficiency.

[0043] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the workbench 10 includes a base 12 and a cover 13. The cover 13 is covered on the base 12 and cooperates with the base 12 to define a closed space 11. The extraction bottle 20 is placed on the base 12, and the conveying assembly 30 is passed through the cover 13. The fluid in the closed space 11 can only be connected to the outside through the conveying assembly 30 on the cover 13. The closed space 11 has a good sealing effect and is not prone to toxic gas leakage. In addition, the installation of the extraction bottle 20 and the conveying assembly 30 is relatively stable, which is convenient for the stable extraction process.

[0044] In some embodiments, the base 12 is movable, so that the operator can move the automatic extraction device 100 to different working areas for easy use.

[0045] In some embodiments, the cover body 13 is provided with a door body that can open and close the enclosed space 11, so as to facilitate the installation, maintenance, replacement and other operations of the extraction bottle 20, the conveying assembly 30, the stirring assembly 40, etc., and the operation is convenient.

[0046] In some embodiments, Figure 1-Figure 2As shown, the cover 13 includes a transparent area, so that an operator outside can observe the state of the extraction bottle 20 in the closed space 11 through the transparent area, such as the color and content of the liquid in the extraction bottle 20, so that the operator can record the extraction situation and perform the next operation according to the extraction situation, making the extraction process more controllable. For example, the operator can determine whether it is necessary to continue to transport the extraction agent to the extraction bottle 20 through the transport component 30 according to the state of the liquid in the extraction bottle 20.

[0047] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the workbench 10 has a waste tank 14, in which a filter purification member is arranged, and the filter purification member is used to purify the waste fluid in the closed space 11 taken out by the conveying assembly 30, and the waste tank 14 is used to store the purified waste fluid. The filter purification member may include activated carbon, asbestos fiber, etc.

[0048] The waste fluid such as toxic gas taken out from the closed space 11 by the conveying assembly 30 can be discharged to the waste tank 14, so that the waste fluid can be processed by the filter purification component in the waste tank 14, and the waste fluid can be prevented from leaking into the outside air to harm the human body and pollute the environment, which is safer. The purified waste fluid is stored in the waste tank 14, which is convenient for unified disposal after the extraction is completed, such as being discharged into the sewer.

[0049] During the extraction process, the separation of the mixed liquid can be achieved not only by natural standing, but also by other methods. For example, in some embodiments of the present invention, Figure 1-Figure 2 and Figure 4 As shown, the automatic extraction device 100 further includes a separation component 50, which is at least partially disposed in the closed space 11 and communicated with the extraction bottle 20, and is used to separate the liquid in the extraction bottle 20. The liquid in the extraction bottle 20 is separated by the connection between the separation component 50 and the extraction bottle 20, and the separation component 50 is at least partially disposed in the closed space 11, so that the fluid in the closed space 11 is not easy to leak from the separation component 50, which is conducive to improving safety while achieving liquid separation. In some embodiments, the centrifugal component can be a centrifugal separator.

[0050] In some embodiments, Figure 4 As shown, the separation assembly 50 includes a shell 51 and a centrifugal member 52. The shell 51 has an inlet 511, a heavy phase outlet 512 and a light phase outlet 513. The inlet 511 extends into the extraction bottle 20. The centrifugal member 52 is rotatably disposed in the shell 51. The centrifugal member 52 rotates to suck the liquid in the extraction bottle 20 into the shell 51 through the inlet 511 and separate the liquid in the shell 51 into a heavy phase liquid with a larger density and a light phase liquid with a smaller density. The heavy phase outlet 512 is used to discharge the heavy phase liquid, and the light phase outlet 513 is used to discharge the light phase liquid.

[0051] The centrifugal element 52 sucks liquid from the inlet 511 and separates the liquid, rather than separating a large amount of liquid such as all the liquid in the extraction bottle 20 at one time, which is conducive to improving the separation efficiency of the liquid in the extraction bottle 20, and the separated light phase liquid and heavy phase liquid are discharged from the light phase outlet 513 and the heavy phase outlet 512 respectively. During the discharge process, the light phase liquid and the heavy phase liquid are not easy to mix, which is conducive to obtaining light phase liquid and heavy phase liquid with higher purity. In some embodiments, the light phase liquid is an aqueous phase, and the heavy phase liquid is an organic phase.

[0052] In some embodiments, Figure 4 As shown, a light phase induction valve 54 is provided at the light phase outlet 513, and a heavy phase induction valve 53 is provided at the heavy phase outlet 512. The light phase induction valve 54 is used to control the light phase outlet 513 to open when the liquid at the light phase outlet 513 is a light phase liquid, and the heavy phase induction valve 53 is used to control the heavy phase outlet 512 to open when the liquid at the heavy phase outlet 512 is a heavy phase liquid. When the liquid is not completely separated into the light phase liquid and the heavy phase liquid, the light phase induction valve 54 and the heavy phase induction valve 53 respectively control the light phase outlet 513 and the heavy phase outlet 512 to be in a closed state, thereby reducing the possibility of heavy phase liquid being discharged from the light phase outlet 513 or light phase liquid being discharged from the heavy phase outlet 512. When the mixed liquid is completely separated into light phase liquid and heavy phase liquid and the light phase liquid and the heavy phase liquid flow to the light phase outlet 513 and the heavy phase outlet 512 respectively, the light phase sensing valve 54 and the heavy phase sensing valve 53 respectively control the light phase outlet 513 and the heavy phase outlet 512 to open, so that the light phase liquid is discharged from the light phase outlet 513 and the heavy phase liquid is discharged from the heavy phase outlet 512, which is beneficial to improve the separation reliability and obtain light phase liquid and heavy phase liquid with higher purity.

[0053] In some embodiments, Figure 4 As shown, the heavy phase outlet 512 is closer to the wall of the shell 51 in the radial direction of the shell 51 than the light phase outlet 513, so that the heavy phase liquid with higher density is thrown radially to a farther distance to flow out from the heavy phase outlet 512. Similarly, the light phase liquid is thrown radially to a closer place to flow out from the light phase outlet 513, so as to obtain light phase liquid and heavy phase liquid from the light phase outlet 513 and the heavy phase outlet 512 respectively.

[0054] In some embodiments, Figure 4 As shown, a baffle 55 is provided at the inlet 511, and the baffle 55 is used to control the opening and closing of the inlet 511, so that the inlet 511 is opened in the centrifugal stage to connect the extraction bottle 20 and the internal space of the shell 51, which is convenient for separating the liquid; the inlet 511 is closed in the non-centrifugal stage to separate the extraction bottle 20 and the internal space of the shell 51, which is convenient for performing other operations such as conveying fluid to the extraction bottle 20 and stirring the stirring part in the extraction bottle 20, thereby reducing the mutual interference of various operations during the extraction process and improving the extraction reliability.

[0055] In some embodiments, Figure 4 As shown, the centrifugal member 52 includes a rotating shaft 521 and a spiral blade 522. The rotating shaft 521 is rotatably mounted on the housing 51. The spiral blade 522 extends spirally along the outer circumference of the rotating shaft 521, which is beneficial to increase the contact area between the centrifugal member 52 and the liquid during the centrifugation process and improve the separation speed of the centrifugal member 52 for the liquid.

[0056] In some embodiments of the present invention, Figure 1-Figure 2 As shown, the stirring assembly 40 includes a magnetic seat 41, the extraction bottle 20 is placed on the magnetic seat 41, and the stirring part rotates under the magnetic force of the magnetic seat 41 to stir the fluid in the extraction bottle 20. The stirring part and the magnetic seat 41 can achieve non-contact stirring of the fluid in the extraction bottle 20, that is, the stirring part does not contact the inner wall of the extraction bottle 20 during the stirring process, and the extraction bottle 20 is not easily damaged. The stirring part controlled by magnetic force stirs the fluid in the extraction bottle 20 more evenly, has a better mixing effect on the liquid, and is conducive to improving the extraction effect. In some embodiments, the stirring assembly 40 can be a magnetic stirrer.

[0057] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the delivery assembly 30 includes a peristaltic pump 31 and a plurality of tubes 32 mounted on the peristaltic pump 31. The tubes 32 connect the extraction bottle 20 with the outside, and the peristaltic pump 31 is used to control the flow state of the tubes 32. Here, the fluid state of the tubes 32 may refer to the flow rate, flow velocity, etc. of the fluid in the tubes 32, and the peristaltic pump 31 can also automatically correct the flow rate in the tubes 32, thereby improving the accuracy of the delivery assembly 30 in delivering the fluid.

[0058] Different fluids can be transported to the extraction bottle 20 through the multiple tubes 32, and different fluids in the closed space 11 can also be taken out, so as to realize the input and output of different fluids in the closed space 11, especially in the extraction bottle 20 during the extraction process, and the fluid state of the tube 32 can be controlled by the peristaltic pump 31, so that the extraction process is more controllable, the input and output of the fluid are more precise, which is conducive to improving the extraction effect.

[0059] For example, in some embodiments, the extractant and the mixture containing the target compound are respectively delivered to the extraction bottle 20 through two tubes 32, and the light phase liquid at the separation component 50, the heavy phase liquid at the separation component 50, and the gas in the closed space 11 are respectively taken out through three tubes 32 to perform the extraction operation and improve the safety of the extraction process.

[0060] In some embodiments, an ultrasonic component is provided in the closed space 11. The cleaning liquid for cleaning the extraction bottle 20 is delivered to the extraction bottle 20 through the delivery component 30, and the ultrasonic component emits ultrasonic waves to clean the entire inner wall surface of the extraction bottle 20, and then the cleaning waste liquid in the extraction bottle 20 is taken out through the delivery component 30 to complete a cleaning operation of the extraction bottle 20, which can reduce the residual substances in the extraction bottle 20 after extraction, reduce the influence of the residual substances in the extraction bottle 20 on other subsequent extraction processes, and help improve the extraction effect of each extraction operation. Of course, the extraction bottle 20 can also be cyclically cleaned for multiple times, and the cleaning effect is better.

[0061] In some embodiments, the extraction bottle 20 can be cleaned by conveying a cleaning liquid for cleaning the extraction bottle 20 to the extraction bottle 20 through the conveying component 30 and stirring the cleaning liquid in the extraction bottle 20 through the stirring part.

[0062] In some embodiments of the present invention, an air drying component is provided in the closed space 11, and the air drying component is used to blow air into the extraction bottle 20 to dry the extraction bottle 20, thereby reducing the residual substances in the extraction bottle 20 after extraction, so as to facilitate the next extraction operation.

[0063] In some embodiments of the present invention, Figure 1-Figure 2 As shown, the automatic extraction device 100 includes a control component 60, which is arranged on the workbench 10, and the conveying component 30 and the stirring component 40 are both connected to the control component 60 for communication, and the control component 60 is used to control the working state of the conveying component 30 and the stirring component 40. Here, the working state of the conveying component 30 and the stirring component 40 includes but is not limited to: the type and content of the fluid conveyed by the conveying component 30 to the extraction bottle 20, the type and content of the fluid taken out from the closed space 11 by the conveying component 30, the interval time of conveying different types of fluids to the extraction bottle 20 by the conveying component 30, the stirring time of one stirring of the stirring part, the interval time of two adjacent stirrings of the stirring part, the stirring times of the stirring part, the stirring speed of the stirring part, etc.

[0064] The control of the conveying assembly 30 and the stirring assembly 40 by the control assembly 60 makes the extraction process more controllable, which is conducive to controlling different working states according to different extraction processes, so as to improve the extraction effect of each extraction. In some embodiments, the control assembly 60 can be a PLC (programmable logic controller) to facilitate the operator to perform control operations.

[0065] In some embodiments, the control component 60 can also control the working states of the centrifugal component, the ultrasonic component and the air-drying component, such as controlling the rotation speed of the centrifugal component 52, the wind speed of the air-drying component, the cleaning time of the ultrasonic component, the number of cleaning times of the ultrasonic component, etc.

[0066] An automatic extraction device 100 according to a specific embodiment of the present invention is described in detail below with reference to the accompanying drawings. It is worth noting that the following description is only an exemplary description and cannot be construed as a limitation to the present invention.

[0067] First, a certain amount of mixture and extractant are input into the extraction bottle 20 through the PLC control conveying component 30, and the mixed liquid in the extraction bottle 20 is stirred by the PLC control stirring part. During the stirring process of the stirring part, the extractant can be continuously added to the extraction bottle 20 through the conveying component 30. The stirring part is controlled to stop stirring after five minutes, and the gas generated during the stirring process is automatically transported to the waste liquid tank 14 through the conveying component 30 for purification. After the stirring is completed, the extraction bottle 20 is allowed to stand for three minutes, and the liquid in the extraction bottle 20 is layered.

[0068] Then, the separation component 50 is controlled by PLC to effectively separate the aqueous phase and the organic phase, and the aqueous phase and the organic phase are respectively transported to corresponding containers by the transport component 30 to complete liquid separation.

[0069] After the liquid separation is completed, the conveying component 30 is controlled by the PLC to input the cleaning liquid into the extraction bottle 20, and then the ultrasonic component is controlled to clean the extraction bottle 20. After cleaning for ten minutes, the cleaning waste liquid is discharged into the waste liquid tank 14 through the conveying component 30. The air-drying component is controlled by the PLC to dry the extraction bottle 20. After drying for 10 minutes, the air-drying component is turned off, completing an extraction operation and subsequent liquid separation, cleaning, and air-drying operations.

[0070] Other structures and operations of the automatic extraction device 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0071] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An automatic extraction device, characterized in that: include: A workbench, wherein the workbench has a closed space; An extraction bottle, wherein the extraction bottle is disposed in the enclosed space; A conveying assembly, the conveying assembly is disposed through the workbench and is in communication with the extraction bottle, the conveying assembly is used to convey fluid to the extraction bottle and to take out the fluid in the closed space; A stirring component is at least partially disposed in the closed space and comprises a stirring portion, wherein the stirring portion is disposed in the extraction bottle to stir the liquid in the extraction bottle.

2. The automatic extraction device according to claim 1, characterized in that: The workbench comprises a base and a cover, wherein the cover is disposed on the base and cooperates with the base to define the closed space, the extraction bottle is placed on the base, and the conveying assembly passes through the cover.

3. The automatic extraction device according to claim 1, characterized in that: The workbench has a waste tank, in which a filter purification component is arranged. The filter purification component is used to purify the waste fluid in the closed space taken out by the conveying component, and the waste tank is used to store the purified waste fluid.

4. The automatic extraction device according to claim 1, characterized in that: Also includes: A separation component is at least partially disposed in the closed space and communicated with the extraction bottle, and is used for separating the liquid in the extraction bottle.

5. The automatic extraction device according to claim 4, characterized in that: The separation assembly includes a shell and a centrifugal component, the shell has an inlet, a heavy phase outlet and a light phase outlet, the inlet extends into the extraction bottle, the centrifugal component is rotatably arranged in the shell, the centrifugal component rotates to suck the liquid in the extraction bottle into the shell through the inlet and separate the liquid in the shell into a heavy phase liquid with a larger density and a light phase liquid with a smaller density, the heavy phase outlet is used to discharge the heavy phase liquid, and the light phase outlet is used to discharge the light phase liquid.

6. The automatic extraction device according to claim 5, characterized in that: The light phase outlet is provided with a light phase induction valve, and the heavy phase outlet is provided with a heavy phase induction valve, the light phase induction valve is used to control the light phase outlet to open when the liquid at the light phase outlet is light phase liquid, and the heavy phase induction valve is used to control the heavy phase outlet to open when the liquid at the heavy phase outlet is heavy phase liquid; and / or, A baffle is provided at the inlet, and the baffle is used to control the opening and closing of the inlet.

7. The automatic extraction device according to claim 1, characterized in that: The stirring assembly comprises a magnetic base body, the extraction bottle is placed on the magnetic base body, and the stirring part rotates under the magnetic force of the magnetic base body to stir the fluid in the extraction bottle.

8. The automatic extraction device according to claim 1, characterized in that: The conveying assembly includes a peristaltic pump and a plurality of tubes installed on the peristaltic pump, the tubes are connected with the extraction bottle and the outside, and the peristaltic pump is used to control the flow state of the tubes.

9. The automatic extraction device according to claim 1, characterized in that: An air drying component is arranged in the enclosed space, and the air drying component is used for blowing air to the extraction bottle to dry the extraction bottle.

10. The automatic extraction device according to claim 1, characterized in that: It comprises: a control component, the control component is arranged on the workbench, the conveying component and the stirring component are both communicatively connected with the control component, and the control component is used to control the working states of the conveying component and the stirring component.

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