Distillation extraction device
By setting up a double-layer structure and a steam delivery pipe in the tank body and using steam condensation to form solvent water, the problem of natural plant raw materials being easily burned dry is solved, the distillation extraction rate and energy utilization efficiency are improved, and the operation process is simplified.
Patent Information
- Application Number
- CN202422619113.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-10-29
AI Technical Summary
In the existing distillation extraction method, natural plant raw materials are easily burned dry, and the distillation time is long, the energy consumption is high, and the distillation extraction rate is low, making it difficult to effectively obtain natural plant extracts.
The tank adopts a double-layer structure, and the steam delivery pipe is passed below the liquid level. The heat medium in the hollow interlayer is used for heating. The steam condenses to form solvent water, which avoids additional replenishment, improves energy utilization efficiency and prevents dry burning.
It effectively avoids the risk of dry burning of natural plant raw materials, improves the distillation extraction rate, simplifies the operation process, and improves energy utilization efficiency and distillation effect.
Smart Images

Figure CN223392917U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of distillation technology, and in particular to a distillation extraction device. Background Art
[0002] Natural fragrances, owing to their natural origins, balanced composition, authentic aroma, and eco-friendly properties, have become a hot topic in fragrance research and development. Currently, distillation extraction is one of the most common industrial methods for producing natural fragrances from natural plants, with water being the most commonly used solvent. The most common distillation extraction method in existing technology involves placing the natural plant raw material directly in a distillation vessel and completely submerging it in water. After a certain period of soaking, the water-soluble components in the natural plant raw material are fully absorbed into the water. During heating and distillation, the volatile components in the water escape with the steam. This equipment is simple, low-cost, and easy to operate. However, due to the light weight of dry natural plant raw materials, a large amount of water is required, requiring all of the water to be heated to generate steam. This results in long distillation times and high energy consumption. Furthermore, during heating and distillation, as steam continuously escapes, the water content in the distillation vessel decreases. To achieve a higher extraction yield of the target component, water must be added to the distillation vessel. Furthermore, as the water content decreases, it becomes difficult to determine the water level and quantity when the liquid level drops below the material. This creates a risk of "dry-burning" the natural plant raw material during continuous heating and distillation.
[0003] On this basis, the methods of water distillation and steam distillation were developed. Water distillation: There is a sieve plate above the water in the container, and the natural plant raw materials are placed on the sieve plate. The amount of water used is appropriate so that the raw materials are not soaked when boiling. Since the water does not need to immerse the natural plant raw materials, the amount of water required is relatively small. During heating and distillation, as the steam continues to escape, the water in the distillation container becomes less and less. If a higher distillation extraction rate of the target component is required, water needs to be added to the distillation container. Since the water and the natural plant raw materials are completely out of contact before and after distillation, it is not easy to obtain extracts of the natural plant raw materials. Steam distillation: Its principle is similar to that of water distillation, but no water is added to the distillation container. Water vapor is sprayed into the container from the air holes at the bottom of the container through a steam pipe. The volatile components in the natural plant raw materials are heated by the steam and escape at the same time as the steam. This method does not require water and directly sprays water vapor, which is also not easy to obtain extracts of natural plant raw materials.
[0004] Therefore, how to effectively avoid the risk of natural plant raw materials being burned dry, improve the distillation extraction rate while obtaining extracts of natural plant raw materials. Utility Model Content
[0005] The purpose of the present application is to provide a distillation extraction device for solving the problem that natural plant raw materials are at risk of being dry-burned and it is inconvenient to obtain extracts from natural plant raw materials.
[0006] In order to solve the above technical problems, the present application provides a distillation extraction device, comprising: a tank body, a steam delivery pipe, a heat medium delivery pipe, a heat medium output pipe, a discharge pipe, a filter and a discharge valve;
[0007] The steam delivery pipe is sealed and inserted into the tank body from the top of the tank body and extends to the bottom of the tank body. The side wall of the tank body includes an outer wall and an inner wall. The heat medium delivery pipe and the heat medium output pipe are connected to the outer wall. A hollow interlayer is formed between the outer wall and the inner wall. The hollow interlayer is respectively connected to the heat medium delivery pipe and the heat medium output pipe. The bottom of the tank body is connected to the discharge pipe, and the filter is provided in the discharge pipe. The discharge valve is provided on the discharge pipe and is located below the filter.
[0008] Optionally, a first valve is provided on the heat medium delivery pipe, a second valve is provided on the heat medium output pipe, a third valve is provided on the steam delivery pipe located outside the tank body, and the heat medium delivery pipe is located below the heat medium output pipe.
[0009] Optionally, a condenser and a distillate collecting device are further included, wherein the condenser is connected to the top of the tank body, and the distillate collecting device is connected to the condenser.
[0010] Optionally, a vent is provided on the top of the distillate collecting device.
[0011] Optionally, a feeding port is provided near the top of the side wall of the tank body, and the feeding port is detachably connected to a cover body.
[0012] Optionally, the top of the tank body is detachably connected to a transparent upper cover, the transparent upper cover is provided with an opening for inserting the steam delivery pipe, the edge of the opening is provided with a sealing ring, the transparent upper cover is integrally connected to a connecting pipe, and the condenser is connected to the tank body through the connecting pipe.
[0013] Optionally, a first flange is provided on the side wall of the transparent upper cover, and a second flange is provided on the side wall of the tank body, and the transparent upper cover and the tank body are detachably connected via the first flange and the second flange.
[0014] Optionally, the discharge pipe is detachably connected to the tank body, the filter is a filter screen, and the filter screen is detachably connected to the discharge pipe.
[0015] Optionally, the tank body includes an integrally connected cylindrical tank body and a truncated conical tank body, the top of the truncated conical tank body is connected to the bottom of the cylindrical tank body, the bottom of the truncated conical tank body is connected to the discharge pipe, and the diameter of the truncated conical tank body gradually decreases from the top of the truncated conical tank body to the bottom of the truncated conical tank body.
[0016] Optionally, it further includes a plurality of support columns, which are connected to the circumference of the truncated cone-shaped tank body.
[0017] A distillation and extraction device provided in the present application includes: a tank body, a steam delivery pipe, a heat medium delivery pipe, a heat medium output pipe, a discharge pipe, a filter and a discharge valve; the steam delivery pipe is sealed and inserted into the tank body from the top of the tank body and extends to near the bottom of the tank body, the side wall of the tank body includes an outer wall and an inner wall, the heat medium delivery pipe and the heat medium output pipe are connected to the outer wall, a hollow interlayer is formed between the outer wall and the inner wall, the hollow interlayer is respectively connected to the heat medium delivery pipe and the heat medium output pipe, the bottom of the tank body is connected to the discharge pipe, a filter is provided in the discharge pipe, and the discharge valve is arranged on the discharge pipe and is located below the filter. Put the natural plant raw materials directly into the tank body, and immerse more than half of the natural plant raw materials in water. Use the heat medium in the hollow interlayer to heat and distill. The steam delivery pipe is passed into the tank body below the liquid level of the solution. On the one hand, the steam directly provides heat energy. In the process of condensing the steam below the liquid level into water, a phase change occurs and a large amount of heat is released, and the energy utilization efficiency is high. On the other hand, the water formed after the steam condenses plays the role of replenishing solvent water. There is no need to add additional water, which effectively avoids the risk of natural plant raw materials being burned dry and improves the distillation extraction rate. The substances in the natural plant raw materials are dissolved in water, and the extract filtered by the filter is collected. The extract is concentrated to obtain the extract of the natural plant raw materials, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0019] Figure 1 A structure of a distillation extraction device provided in this embodiment;
[0020] Figure 2 A schematic diagram of a tank provided in this embodiment;
[0021] The figures are marked as follows: 1-tank body, 2-steam delivery pipe, 3-heat medium delivery pipe, 4-heat medium output pipe, 5-discharge pipe, 6-filter, 7-discharge valve, 8-first valve, 9-second valve, 10-third valve, 11-condenser, 12-distillate collecting device, 13-feeding port, 14-cover, 15-transparent upper cover, 16-connecting pipe, 17-support column, 101-outer wall, 102-inner wall, 103-cylindrical tank body, 104-conical tank body, 1201-vent. DETAILED DESCRIPTION
[0022] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0023] The core of this application is to provide a distillation extraction device for effectively avoiding the risk of natural plant raw materials being burned dry, improving the distillation extraction rate and obtaining extracts of natural plant raw materials.
[0024] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0025] Figure 1 The structure of a distillation extraction device provided in this embodiment is as follows: Figure 1 As shown, a distillation extraction device includes: a tank body 1, a steam delivery pipe 2, a heat medium delivery pipe 3, a heat medium output pipe 4, a discharge pipe 5, a filter 6 and a discharge valve 7; the steam delivery pipe 2 is sealed and inserted into the tank body 1 from the top of the tank body 1 and extends to the near bottom of the tank body 1, the side wall of the tank body 1 includes an outer wall 101 and an inner wall 102, the heat medium delivery pipe 3 and the heat medium output pipe 4 are connected to the outer wall 101, and a hollow interlayer is formed between the outer wall 101 and the inner wall 102, and the hollow interlayer is respectively connected to the heat medium delivery pipe 3 and the heat medium output pipe 4, the bottom of the tank body 1 is connected to the discharge pipe 5, the discharge pipe 5 is provided with a filter 6, and the discharge valve 7 is provided on the discharge pipe 5 and is located below the filter 6.
[0026] The embodiment of the present application does not specifically limit the shape and size of the tank body 1. The tank body 1 is used to hold natural plant materials and solvents, and the solvent is generally water. The steam delivery pipe 2 is sealed and inserted into the tank body 1 and extends to the near bottom of the tank body 1, maintaining a certain distance from the bottom of the tank body 1. The amount of water added to the tank body 1 generally needs to cover the steam delivery pipe 2. The side wall of the tank body 1 adopts a double-layer structure to form a hollow interlayer. The heat medium delivery pipe 3 is used to deliver heat medium to the hollow interlayer, thereby heating the water in the tank body 1; wherein the heat medium can be steam, thermal oil or hot air, etc. The discharge pipe 5 is arranged at the bottom of the tank body 1. The distilled solution in the tank body 1 is filtered through the filter 6 to obtain an extract, and the extract is concentrated to obtain an extract; the discharge valve 7 can be used to adjust the outflow rate of the extract.
[0027] A distillation extraction device provided in an embodiment of the present application includes: a tank body 1, a steam delivery pipe 2, a heat medium delivery pipe 3, a heat medium output pipe 4, a discharge pipe 5, a filter 6 and a discharge valve 7; the steam delivery pipe 2 is sealed and inserted into the tank body 1 from the top of the tank body 1 and extends to the near bottom of the tank body 1, the side wall of the tank body 1 includes an outer wall 101 and an inner wall 102, the heat medium delivery pipe 3 and the heat medium output pipe 4 are connected to the outer wall 101, and a hollow interlayer is formed between the outer wall 101 and the inner wall 102, and the hollow interlayer is respectively connected to the heat medium delivery pipe 3 and the heat medium output pipe 4, the bottom of the tank body 1 is connected to the discharge pipe 5, a filter 6 is provided in the discharge pipe 5, and the discharge valve 7 is arranged on the discharge pipe 5 and is located below the filter 6. The natural plant raw materials are directly placed in the tank body 1, and more than half of the natural plant raw materials are immersed in water. The heat medium in the hollow interlayer is used for heating and distillation. The steam delivery pipe 2 is passed into the tank body 1 below the liquid level of the solution. On the one hand, the steam directly provides thermal energy. In the process of the steam below the liquid level condensing into water, a phase change occurs and a large amount of heat is released, and the energy utilization efficiency is high. On the other hand, the water formed after the steam condenses plays the role of replenishing solvent water. There is no need to add additional water, which effectively avoids the risk of natural plant raw materials being burned dry and improves the distillation extraction rate. The substances in the natural plant raw materials are dissolved in water, and the extract filtered by the filter 6 is collected. The extract can be concentrated to obtain the extract of the natural plant raw materials, which is very convenient.
[0028] Based on the above embodiments, in the embodiment of the present application, a first valve 8 is provided on the heat medium delivery pipe 3, a second valve 9 is provided on the heat medium output pipe 4, a third valve 10 is provided on the steam delivery pipe 2 located outside the tank body 1, and the heat medium delivery pipe 3 is located below the heat medium output pipe 4.
[0029] The primary function of the first valve 8 is to control the flow of heat medium from the heat source to the hollow interlayer. It can start or stop the flow of heat medium, or adjust the flow rate to meet the thermal requirements of the tank body 1. In addition, it can also cut off the flow of heat medium during system maintenance or failure to ensure system safety. The second valve 9 is used to control the flow of heated heat medium from the hollow interlayer back to the heat source or storage tank. It can adjust the flow rate of the return heat medium to maintain the thermal balance of the tank body 1. When necessary, it can also be closed to facilitate maintenance or inspection. The third valve 10, located on the steam delivery pipe 2 outside the tank body 1, is designed to control the delivery of steam and adjust the steam delivery flow rate to ensure the efficient use of steam and the safety of the device. The design purpose of the heat medium delivery pipe 3, located below the heat medium output pipe 4, is to utilize the principle of gravity to allow the heat medium to flow back naturally during the circulation process, reducing the pumping requirements in the system, thereby reducing energy consumption and ensuring that the heat medium fills the entire hollow interlayer.
[0030] Based on the above embodiment, the embodiment of the present application further includes a condenser 11 and a distillate collecting device 12 . The condenser 11 is connected to the top of the tank body 1 , and the distillate collecting device 12 is connected to the condenser 11 .
[0031] In the embodiment of the present application, the interior of the distillate collection device 12 can be provided with an anti-corrosion coating. Furthermore, a vent 1201 is provided at the top of the distillate collection device 12, which communicates with the outside atmosphere, maintaining a normal pressure within the tank 1 and improving the safety of the entire device. By providing the condenser 11 and the distillate collection device 12, a distillate of the natural plant material can be obtained. This extract can be concentrated by combining the extracted liquid filtered by the filter 6 to obtain an extract, thereby achieving the goal of producing two natural fragrances with different components and effects using the same natural plant material in a single experiment.
[0032] Based on the above embodiment, a feeding port 13 is provided near the top of the side wall of the tank body 1 in the embodiment of the present application, and the feeding port 13 is detachably connected to the cover body 14. The embodiment of the present application does not limit the manner in which the feeding port 13 and the cover body 14 are detachably connected. It can be that an internal thread is provided on the inner wall of the cover body 14 and an external thread is provided on the circumference of the feeding port 13, so that the cover body 14 and the feeding port 13 are connected by threads. The design of the feeding port 13 facilitates the addition of natural plant raw materials during the distillation process. In addition, the feeding port 13 can serve as a visual window to facilitate observation of the conditions inside the tank body 1.
[0033] Based on the above embodiments, the top of the tank body 1 of the embodiment of the present application is detachably connected with a transparent upper cover 15, the transparent upper cover 15 is provided with an opening for inserting the steam delivery pipe 2, and a sealing ring is provided at the edge of the opening. The transparent upper cover 15 is integrally connected with a connecting pipe 16, and the condenser 11 is connected to the tank body 1 through the connecting pipe 16.
[0034] The embodiment of the present application does not limit the manner in which the tank body 1 and the transparent upper cover 15 are detachably connected. Specifically, the side wall of the transparent upper cover 15 is provided with a first flange, and the side wall of the tank body 1 is provided with a second flange. The transparent upper cover 15 and the tank body 1 are detachably connected via the first flange and the second flange. The first flange and the second flange are connected by tightening bolts; the tank body 1 and the transparent upper cover 15 are connected via flanges, which facilitates quick installation and removal; placing appropriate gaskets between the two flanges can achieve a good sealing effect and effectively prevent distillate leakage. A sealing ring is provided at the edge of the opening on the transparent upper cover 15. When the steam delivery pipe 2 is inserted into the tank body 1, the sealing ring is tightly abutted against the outer peripheral surface of the steam delivery pipe 2, which can effectively prevent distillate leakage and allow all distillate to flow into the condenser 11 through the connecting pipe 16.
[0035] Based on the above embodiment, the discharge pipe 5 of the embodiment of the present application is detachably connected to the tank body 1, and the filter 6 is a filter screen, which is detachably connected to the discharge pipe 5. The discharge pipe 5 in the embodiment of the present application and the tank body 1 can be connected by plugging or threading. The aperture of the filter screen is smaller than the diameter of the natural plant raw material. The filter screen is detachably connected to the discharge pipe 5, which is convenient for cleaning or replacing the filter screen. Specifically, the filter screen can be installed in the discharge pipe 5 by bolts. The discharge pipe 5 is detachably connected to the tank body 1, and the discharge pipe 5 can be separated from the tank body 1, which facilitates the discharge of the distilled natural plant raw material out of the tank body 1.
[0036] Based on the above embodiments, Figure 2 A schematic diagram of a tank body 1 provided in this embodiment is shown as follows: Figure 2 As shown, the tank body 1 includes an integrally connected cylindrical tank body 103 and a frustum-shaped tank body 104. The top of the frustum-shaped tank body 104 is connected to the bottom of the cylindrical tank body 103. The bottom of the frustum-shaped tank body 104 is connected to a discharge pipe 5. The diameter of the frustum-shaped tank body 104 gradually decreases from the top of the frustum-shaped tank body 104 to the bottom of the frustum-shaped tank body 104.
[0037] In the embodiment of the present application, the tank body 1 includes an integrally connected cylindrical tank body 103 and a truncated cone-shaped tank body 104. The design purpose is that: the combination of the cylindrical tank body 103 and the truncated cone-shaped tank body 104 can provide better structural stability, because the cylinder has inherent advantages in bearing pressure and weight, and the gradually decreasing design of the bottom of the truncated cone-shaped tank body 104 helps to further enhance the stability of the structure; the discharge pipe 5 connected to the bottom of the truncated cone-shaped tank body 104 and the design of gradually decreasing diameter help to flow and discharge materials, reduce dead corners, and ensure that materials can be smoothly discharged from the tank body 1; the design of the truncated cone-shaped tank body 104 facilitates cleaning and maintenance work, because its shape can reduce internal dead corners, making cleaning more convenient.
[0038] Furthermore, the device further includes a plurality of support columns 17 connected to the circumference of the truncated cone-shaped tank body 104. The design of the support columns 17 allows the bottom of the truncated cone-shaped tank body 104 to maintain a certain distance from the ground, preventing the bottom of the truncated cone-shaped tank body 104 from directly contacting the ground. This effectively prevents corrosion of the bottom of the tank body 1 by the wet ground, thereby increasing the service life of the device.
[0039] In order to better understand the present application, the specific operation process of the distillation extraction device is introduced below.
[0040] The natural plant raw materials are added to the tank body 1 through the feeding port 13, and the extraction solvent water is added to immerse more than half of the natural plant raw materials. The feeding port 13 is then closed. The condenser 11 is opened, and the first valve 8 and the second valve 9 are opened to allow steam to flow into the hollow interlayer of the tank body 1. At the same time, the third valve 10 on the steam delivery pipe 2 is opened to allow steam to flow into the tank body 1. While the steam in the hollow interlayer is heated, the steam introduced into the tank body 1 through the steam delivery pipe 2 condenses and also provides heat energy, improving heating efficiency. At the same time, the steam introduced into the tank body 1 through the steam delivery pipe 2 condenses and effectively replenishes the solvent water. The natural plants are distilled and extracted according to the set distillation and extraction time. After the distillation and extraction is completed, on the one hand, the distillate in the distillate collecting device 12 is collected to obtain the distillate of the natural plants; on the other hand, the discharge valve 7 is opened to collect the extract flowing out of the discharge pipe 5, and the extract is concentrated to obtain the extract. After the extract is collected, the discharge pipe 5 (including the filter and the discharge valve arranged in sequence in the discharge pipe) is disassembled as a whole, and the natural plant raw material residue falls downward and is discharged through the discharge port.
[0041] The above is a detailed introduction to the distillation extraction device provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to in detail. It should be noted that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.
[0042] It should also be noted that, in this specification, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.
Claims
1. A distillation extraction device, characterized in that: include: Tank body (1), steam delivery pipe (2), heat medium delivery pipe (3), heat medium output pipe (4), discharge pipe (5), filter (6) and discharge valve (7); The steam delivery pipe (2) is sealed and inserted into the tank body (1) from the top of the tank body (1) and extends to the bottom of the tank body (1). The side wall of the tank body (1) includes an outer wall (101) and an inner wall (102). The heat medium delivery pipe (3) and the heat medium output pipe (4) are connected to the outer wall (101). A hollow interlayer is formed between the outer wall (101) and the inner wall (102). The hollow interlayer is respectively connected to the heat medium delivery pipe (3) and the heat medium output pipe (4). The bottom of the tank body (1) is connected to the discharge pipe (5). The filter (6) is provided in the discharge pipe (5). The discharge valve (7) is provided on the discharge pipe (5) and is located below the filter (6).
2. The distillation extraction device according to claim 1, characterized in that The heat medium delivery pipe (3) is provided with a first valve (8), the heat medium output pipe (4) is provided with a second valve (9), and the steam delivery pipe (2) located outside the tank body (1) is provided with a third valve (10). The heat medium delivery pipe (3) is located below the heat medium output pipe (4).
3. The distillation extraction device according to claim 1, characterized in that It also includes a condenser (11) and a distillate collecting device (12), wherein the condenser (11) is connected to the top of the tank body (1), and the distillate collecting device (12) is connected to the condenser (11).
4. The distillation extraction device according to claim 3, characterized in that A vent (1201) is provided on the top of the distillate collecting device (12).
5. The distillation extraction device according to claim 1, characterized in that A feeding port (13) is provided near the top of the side wall of the tank body (1), and the feeding port (13) is detachably connected to a cover body (14).
6. The distillation extraction device according to claim 3, characterized in that: The top of the tank body (1) is detachably connected to a transparent upper cover (15), the transparent upper cover (15) is provided with an opening for inserting the steam delivery pipe (2), the edge of the opening is provided with a sealing ring, the transparent upper cover (15) is integrally connected to a connecting pipe (16), and the condenser (11) is connected to the tank body (1) via the connecting pipe (16).
7. The distillation extraction device according to claim 6, characterized in that The side wall of the transparent upper cover (15) is provided with a first flange, and the side wall of the tank body (1) is provided with a second flange. The transparent upper cover (15) and the tank body (1) are detachably connected via the first flange and the second flange.
8. The distillation extraction device according to claim 1, characterized in that The discharge pipe (5) is detachably connected to the tank body (1), and the filter (6) is a filter screen, which is detachably connected to the discharge pipe (5).
9. The distillation extraction device according to any one of claims 1 to 8, characterized in that: The tank body (1) comprises an integrally connected cylindrical tank body (103) and a truncated cone-shaped tank body (104), the top of the truncated cone-shaped tank body (104) is connected to the bottom of the cylindrical tank body (103), the bottom of the truncated cone-shaped tank body (104) is connected to the discharge pipe (5), and the diameter of the truncated cone-shaped tank body (104) gradually decreases from the top of the truncated cone-shaped tank body (104) to the bottom of the truncated cone-shaped tank body (104).
10. The distillation extraction device according to claim 9, characterized in that: It also includes a plurality of support columns (17), wherein the plurality of support columns (17) are connected to the circumferential surface of the truncated cone-shaped tank body (104).