A laboratory-grade artemisia extraction device

Abstract

This utility model belongs to the field of artemisia extraction technology and discloses a laboratory artemisia extraction device, including a top cover and an evaporator that slides on the surface of the top cover. When the evaporator and the top cover are overlapped, they can form a sealed space. When the evaporator and the top cover are separated, they can be used to arrange materials. The inner cavity of the evaporator is integrally formed with an annular plate and an inclined plate from top to bottom. Two sets of multi-layer mesh baffles and stainless steel corrugated packing slide inside the vertical groove. The bottom of the inner cavity of the vertical groove is a vapor dispersion area. The top of the multi-layer mesh baffles and stainless steel corrugated packing located at the bottom of the vertical groove is set as a water vapor and camphor mixing area. Through the above solution, the problem of steam liquefying and adhering to the inner wall of the tank when the steam rises during the process of using an integrally formed evaporator is solved. Furthermore, as the steam rises, the camphor component carried by the water vapor will also assist in the inner wall of the tank, resulting in less extract after condensation.

Description

Technical Field

[0001] This utility model belongs to the field of artemisia extraction technology, specifically an artemisia extraction device for laboratory use. Background Technology

[0002] When extracting Artemisia in a laboratory environment, evaporators are mostly used to extract the components from Artemisia by water evaporation and then collect them by condensation. Generally, the convenience and accuracy of the extraction equipment need to be considered, as well as the goals of improving extraction efficiency, reducing effective components, and reducing energy consumption. In existing borneol extraction equipment, most of them use one-piece molded evaporator tanks. During the rising process of steam, due to the inconsistent temperature inside the tank, the steam liquefies when it encounters cold air and adheres to the inner wall of the tank, reducing the contact between the steam and the extract. Furthermore, as it continues to rise, the borneol components carried by the water vapor also contribute to the inner wall of the tank, resulting in a smaller amount of extract after condensation. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a laboratory artemisia extraction device, which has the advantages of changing the time of water vapor inside the tank and adding multi-layer mesh baffles and stainless steel corrugated packing at the end of the tank to improve entrainment efficiency, reduce purification time, and increase the purity of the extract.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a laboratory artemisia extraction device, comprising a top cover and an evaporator that slides on the surface of the top cover. When the evaporator and the top cover overlap, a sealed space can be formed. When the evaporator and the top cover are separated, they can be used to arrange materials. The evaporator is divided into four areas from top to bottom. The inner cavity of the evaporator is integrally formed with an annular plate and an inclined plate from top to bottom. Two sets of multi-layer mesh baffles and stainless steel corrugated packing slide inside the vertical groove. The surface pore diameter of the multi-layer mesh baffles is set to 1-2 mm, and the pore density is 5-8 pores / cm². The stainless steel corrugated packing is used to support the material crushed to 20-40 mesh particles. The bottom of the vertical trough is a steam dispersion zone. The top of the multi-layer mesh baffles and stainless steel corrugated packing located at the bottom of the vertical trough is set as a mixing zone for water vapor and ice flakes. The mixing zone for water vapor and ice flakes includes an inclined plate, the top of which is a turbulent zone. Another set of multi-layer mesh baffles and stainless steel corrugated packing is located within the turbulent zone. The turbulent zone includes an annular plate, the top of which is set as a diffusion zone. Both the inclined plate and the annular plate are fixed to the inner wall of the evaporator. Both the inclined plate and the annular plate are used to change the fluid direction.

[0005] Preferably, the top and bottom of the cover are respectively provided with a feed inlet and a discharge outlet. The feed inlet of the cover can also be used for adding solution and subsequent borneol vapor discharge. The bottom of the inner cavity of the evaporator is set as a vapor dispersion area. A stirring device is installed inside the vapor dispersion area to mix the material and solution inside the evaporator.

[0006] Preferably, the support plate is configured as an inclined annular plate, and the annular plate is configured to be narrow in the middle and wide on both sides.

[0007] Preferably, a heating wire is fixedly connected to the inner wall of the top cover. The heating method of the heating wire is not limited to electric heating or steam heating. The heating wire is used to heat or preheat the inside of the top cover.

[0008] Preferably, a vertical sliding groove is provided on one side of the central groove position on the surface of the evaporator, and the top cover slides inside the vertical sliding groove of the evaporator. The sliding range of the top cover is limited to the maximum and minimum values ​​of the sliding of the hydraulic rod on the surface of the top cover.

[0009] Preferably, the inner cavity of the evaporator has a water vapor inlet end, and the periphery of the water vapor inlet end has an inert gas interface, and valves are fitted on the surfaces of both the water vapor inlet end and the inert gas interface.

[0010] Preferably, the evaporator has vertical grooves on both sides, and the vertical grooves are threaded at equal intervals. A support plate slides inside the vertical groove, and the support plate is used to support the multi-layer mesh partition. The two sets of multi-layer mesh partitions and the inclined plate can be adjusted separately.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The telescopic structure changes the previous fixed-height evaporator. The height of the evaporator can be adjusted arbitrarily according to the amount of material, which reduces the long-term residence of water vapor inside the evaporator, avoids liquefaction caused by evaporation, and prevents ice flakes from condensing prematurely inside the evaporator. By adding inclined plates and annular plates inside the evaporator to improve the direction of gas flow, dead zones in gas transmission can be avoided during the process of water vapor being transported from the bottom to the top. By adding multiple layers of mesh baffles inside the evaporator and adding stainless steel corrugated packing at the top of the mesh baffles, the rising water vapor and the volatilized ice flakes form a "gas-liquid film" on the surface of the packing. Through multiple adsorption-desorption processes, the ice flakes are more easily carried by the steam, which is equivalent to adding a "secondary entrainment" process. The total amount of ice flakes in the distillate can be greatly increased. An inert gas interface is added at the steam inlet. The inert gas pushes the camphor molecules from the surface of the raw material to the gas phase, reducing the accumulation of camphor around the raw material and thus accelerating its entrainment by the steam. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the front view of this utility model; Figure 3 This is a schematic diagram of the inclined plate and the annular plate of this utility model; Figure 4 This is a structural schematic diagram of the evaporator of this utility model in cross-section; Figure 5 This is a schematic diagram of the structure of the top cover and evaporator of this utility model.

[0013] In the diagram: 1. Top cover; 2. Evaporator; 21. Vertical trough; 22. Support plate; 23. Multi-layer mesh baffle; 24. Stainless steel corrugated packing; 25. Inclined plate; 26. Annular plate; 3. Stirring device; 4. Steam inlet; 5. Inert gas inlet; 6. Valve; 7. Heating wire; 100, Steam dispersion region; 200, Water vapor and ice flake mixing region; 300, Turbulent region; 400, Diffusion region. Detailed Implementation

[0014] 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.

[0015] like Figures 1 to 5 As shown, this utility model provides a laboratory artemisia extraction device, including a top cover 1 and an evaporator 2 that slides on the surface of the top cover 1. When the evaporator 2 and the top cover 1 overlap, a sealed space can be formed. When the evaporator 2 and the top cover 1 are separated, they can be used to arrange materials. The evaporator 2 is divided into four areas from top to bottom. The inner cavity of the evaporator 2 is integrally formed with an annular plate 26 and an inclined plate 25 from top to bottom. Two sets of multi-layer mesh baffles 23 and stainless steel corrugated packing 24 slide inside the vertical groove 21. The surface pore diameter of the multi-layer mesh baffles 23 is set to 1-2 mm, and the pore density is 5-8 particles / cm². The stainless steel corrugated packing 24 is used to support the material crushed to 20-40 mesh particles. The bottom of the inner cavity of the vertical trough 21 is a steam dispersion area 100. The top of the multi-layer mesh baffle 23 and stainless steel corrugated packing 24 located at the bottom of the vertical trough 21 is set as a water vapor and ice flake mixing area 200. The water vapor and ice flake mixing area 200 includes an inclined plate 25. The top of the inclined plate 25 is a turbulent area 300. Another set of multi-layer mesh baffle 23 and stainless steel corrugated packing 24 is located within the turbulent area 300. The turbulent area 300 includes an annular plate 26. The top of the annular plate 26 is set as a diffusion area 400. The inclined plate 25 and the annular plate 26 are both fixed to the inner wall of the evaporator 2. The inclined plate 25 and the annular plate 26 are both used to change the fluid direction. Water vapor enters the inner cavity of evaporator 2 from the bottom and participates in extraction. When the water vapor encounters the multi-layer mesh baffle 23, it flows into the top of the stainless steel corrugated packing 24 in the form of a "uniform bubble flow". The rising water vapor and the volatilized ice flakes form a "gas-liquid film" on the surface of the packing. Through multiple adsorption-desorption processes, the ice flakes are more easily carried by the steam, which is equivalent to adding a "secondary entrainment" process. The total amount of ice flakes in the distillate can be increased. During the movement from the water vapor and ice flake mixing area 200 to the turbulent area 300, the support plate 22 is set in an inclined shape and the annular plate 26 is set in a shape that is narrow in the middle and wide on both sides. The gas will pass through the inclined plate 25, guiding the rising water vapor to diffuse towards the edge of the raw material layer, avoiding the steam from concentrating in the middle and forming a "short circuit", and ensuring that the raw materials at the edge can also fully contact the steam.

[0016] The top and bottom of the upper cover 1 are respectively provided with a feed inlet and a discharge outlet. The feed inlet of the upper cover 1 can also be used for adding solution and for subsequent borneol vapor discharge. A vapor dispersion zone 100 is set at the bottom of the inner cavity of the evaporator 2. A stirring device 3 is installed inside the vapor dispersion zone 100 to mix the material and solution inside the evaporator 2. In this embodiment, the stirring device 3 stirs from the bottom of the inner cavity of the evaporator 2, and water or solvent flows from the top down. The bidirectional contact mode of top-down penetration and bottom-up stirring reduces incomplete local extraction.

[0017] A heating wire 7 is fixedly connected to the inner wall of the upper cover 1. The heating method of the heating wire 7 is not limited to electric heating or steam heating. The heating wire 7 is used to heat or preheat the inside of the upper cover 1 to avoid uneven temperature between the upper cover 1 and the inside of the evaporator 2 when the upper cover 1 or the evaporator 2 is heated. This would prevent the steam from liquefying with the inner wall of the upper cover 1 when it rises, thus increasing the temperature of the inner wall of the upper cover 1 and reducing the temperature difference.

[0018] A vertical sliding groove is provided on one side of the center groove on the surface of the evaporator 2. The upper cover 1 slides inside the vertical sliding groove of the evaporator 2. The sliding range of the upper cover 1 is limited to the maximum and minimum values ​​of the sliding of the hydraulic rod on the surface of the upper cover 1.

[0019] The inner cavity of the evaporator 2 is connected to a steam inlet 4, and an inert gas interface 5 is connected to the periphery of the steam inlet 4. Valves 6 are fitted on the surfaces of both the steam inlet 4 and the inert gas interface 5.

[0020] In this embodiment, when water vapor flows from bottom to top inside the evaporator 2, if the water vapor velocity is too fast, it will cause the material to escape from the outlet of the evaporator 2 before it can fully contact the material. If the water vapor velocity is slow, the entrainment capacity is weak. By filling with inert gas, the inert gas does not participate in the phase change, but it can increase the total pressure of the gas phase, which can push the ice flake molecules from the surface of the raw material to the gas phase, reduce the "concentration accumulation" of ice flakes around the raw material, and thus accelerate its entrainment by water vapor. Valve 6 is used to control the gas flow between the water vapor inlet 4 and the inert gas interface 5.

[0021] The evaporator 2 has vertical grooves 21 on both sides, and the vertical grooves 21 are threaded at equal intervals. A support plate 22 slides inside the vertical grooves 21, and the support plate 22 is used to support the multi-layer mesh partition 23. The two sets of multi-layer mesh partitions 23 and the inclined plate 25 can be adjusted separately.

[0022] In this embodiment, the connection between the support plate 22 and the vertical groove 21 is released by bolts, changing the position of the support plate 22 inside the evaporator 2. The support plate 22 is used to support and limit the multi-layer mesh partition 23. By changing the distance between the two sets of multi-layer mesh partitions 23 and the stainless steel corrugated packing 24, the steam flow is not obstructed, while more materials can be placed.

[0023] The structures (such as electric motors) are existing technology and will not be described further; this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described further; the "front, rear, left, and right" perspectives of this device are... Figure 1 The direction shown in the diagram is the reference.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] 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 laboratory-grade artemisia extraction apparatus, comprising a top cover (1) and an evaporator (2) that slides on the surface of the top cover (1), characterized in that: When the evaporator (2) and the top cover (1) overlap, a sealed space can be formed. When the evaporator (2) and the top cover (1) are separated, they can be used to arrange materials. The evaporator (2) is divided into four areas from top to bottom. The inner cavity of the evaporator (2) is integrally formed with an annular plate (26) and an inclined plate (25) from top to bottom. The vertical groove (21) has two sets of multi-layer mesh baffles (23) and stainless steel corrugated packing (24) sliding inside. The surface pore size of the multi-layer mesh baffles (23) is set to 1-2 mm, and the pore density is 5-8 pores / cm². The stainless steel corrugated packing (24) is used to support the material crushed to 20-40 mesh particles. The bottom of the inner cavity of the vertical trough (21) is a steam dispersion area (100). The top of the multi-layer mesh baffle (23) and stainless steel corrugated packing (24) located at the bottom of the vertical trough (21) is set as a water vapor and ice flake mixing area (200). The water vapor and ice flake mixing area (200) includes an inclined plate (25). The top of the inclined plate (25) is a turbulent area (300). Another set of multi-layer mesh baffles (23) and stainless steel corrugated packing (24) is located in the turbulent area (300). The turbulent area (300) includes an annular plate (26). The top of the annular plate (26) is set as a diffusion area (400). The inclined plate (25) and the annular plate (26) are both fixed to the inner wall of the evaporator (2). The inclined plate (25) and the annular plate (26) are both used to change the direction of the fluid.

2. A laboratory Blumea extractive apparatus as claimed in claim 1, wherein: The top and bottom of the cover (1) are respectively provided with a feed port and a discharge port. The feed port of the cover (1) can also be used to add solution and discharge ice flakes vapor. The bottom of the inner cavity of the evaporator (2) is set as a steam dispersion area (100). The steam dispersion area (100) is equipped with a stirring device (3). The stirring device (3) is used to mix the material and solution inside the evaporator (2).

3. The laboratory Blumea extractive apparatus as claimed in claim 1, wherein: The support plate (22) is set as an inclined annular plate, and the annular plate (26) is set as a shape that is narrow in the middle and wide on both sides.

4. The laboratory Blumea extractive apparatus as claimed in claim 2, wherein: A heating wire (7) is fixedly connected to the inner wall of the cover (1). The heating wire (7) can be heated by electric heating or steam heating. The heating wire (7) is used to heat or preheat the inside of the cover (1).

5. The laboratory Blumea extractive apparatus as claimed in claim 2, wherein: A vertical sliding groove is provided on one side of the center groove position of the surface of the evaporator (2). The upper cover (1) slides inside the vertical sliding groove of the evaporator (2). The sliding range of the upper cover (1) is limited to the maximum and minimum values ​​of the sliding of the hydraulic rod on the surface of the upper cover (1).

6. The laboratory artemisia extraction device according to claim 5, characterized in that: The inner cavity of the evaporator (2) is connected to a steam inlet (4), and an inert gas interface (5) is connected to the periphery of the steam inlet (4). Valves (6) are fitted on the surfaces of the steam inlet (4) and the inert gas interface (5).

7. The laboratory artemisia extraction device according to claim 5, characterized in that: The evaporator (2) has vertical grooves (21) on both sides. The vertical grooves (21) are threaded at equal intervals. A support plate (22) slides inside the vertical grooves (21). The support plate (22) is used to support the multi-layer mesh partition (23). The two sets of multi-layer mesh partitions (23) and the inclined plate (25) can be adjusted respectively.

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