Torreya grandis aril essential oil extraction device

Abstract

This invention belongs to the technical field of essential oil extraction equipment, specifically relating to an essential oil extraction device for Torreya grandis aril, including a distillation tank, a steam generator, a condensing mechanism, and an essential oil separator. An insulation box is provided on the outside of the distillation tank. The condensing mechanism is connected to the inside of the distillation tank via a guide pipe. Inside the condensing mechanism are a steam inner pipe connected to the guide pipe, a spiral sleeve fitted onto the steam inner pipe, and a cooling box and a reflux box connected to both ends of the spiral sleeve. By setting an insulation box connected to the condensing mechanism outside the distillation tank, this invention can absorb the heat from the steam in the steam inner pipe, causing the circulating liquid in the reflux box to heat up rapidly. Combined with the circulation pump, this ensures the insulation box is filled with circulating liquid, achieving heat exchange while simultaneously using the heat obtained to insulate the distillation tank, thus maintaining a continuous and stable distillation of Torreya grandis aril within the tank.

Description

Technical Field

[0001] This invention belongs to the technical field of essential oil extraction equipment, specifically relating to a device for extracting essential oil from the aril of Torreya grandis. Background Technology

[0002] In recent years, research on Torreya grandis aril has received great attention. Chinese scientists have conducted numerous experiments on Torreya grandis aril, and their research shows that Torreya grandis aril extract has antioxidant, antitumor, and antibacterial biological activities. The aril extract is rich in many aromatic substances. Torreya grandis aril has a high oil content, and the plant essential oil extracted from it is not only highly pure but also contains many active ingredients, making it a rare raw material for cosmetic production.

[0003] Currently, the aril of Torreya grandis is generally disposed of as waste, which not only wastes resources but also pollutes the environment. Although essential oil can be extracted from the aril, the following problems often exist in its practical application:

[0004] (1) For scattered or low-yield Torreya grandis planting areas, if an investment is made to establish an aril processing plant, large-scale instruments and chemical reagents are required, which requires a large investment and is obviously not in line with the actual situation of the planting area.

[0005] (2) Torreya arils are very easy to rot and deteriorate, making it difficult to transport them to processing plants over long distances. Refrigeration or drying will also increase costs, and the effect of extracting essential oil is not as good as that of fresh Torreya arils.

[0006] Given the aforementioned problems, there is an urgent need to design an essential oil extraction device suitable for Torreya grandis plantations with limited yields to extract essential oils and avoid discarding Torreya grandis arils as waste, thus avoiding resource waste. Summary of the Invention

[0007] The purpose of this invention is to provide a device for extracting essential oil from Torreya grandis aril, in order to solve the problems mentioned in the background art.

[0008] The present invention achieves the above objectives through the following technical solutions:

[0009] An apparatus for extracting essential oil from Torreya grandis aril includes a distillation tank, a steam generator, a condensation mechanism, and an essential oil separator, wherein an insulation box is provided on the outside of the distillation tank;

[0010] The condensing mechanism is connected to the interior of the distillation tank through a guide pipe. The interior of the condensing mechanism is provided with a steam inner pipe connected to the guide pipe, a spiral sleeve sleeved on the steam inner pipe, and a cooling box and a reflux box connected to both ends of the spiral sleeve. The cooling box is connected to the insulation box through a connecting pipe one, and the reflux box is connected to the insulation box through a connecting pipe two. Both the connecting pipe one and the connecting pipe two are equipped with circulation pumps.

[0011] The heat preservation box, the first connecting pipe, the cooling box, the spiral sleeve, the return box, and the second connecting pipe are connected in sequence to form a circulation path, and the circulation path is filled with circulating fluid.

[0012] A further improvement is that a filter plate is horizontally arranged inside the distillation tank, and stirring components are provided in the space above and below the filter plate inside the distillation tank. A motor that drives the stirring components is also provided inside the distillation tank.

[0013] A further improvement is that the filter plate includes an outer frame and filter ports evenly distributed on the outer frame. The filter ports include an upper opening and a lower opening connected in sequence, and the upper opening has a trapezoidal cross-section.

[0014] The filter plate also includes a connecting copper pipe located on the upper surface of the outer frame, with both ends of the connecting copper pipe connected to the insulation box.

[0015] A further improvement is that, located below the filter plate, the output shaft of the motor is connected to a rotating shaft one for driving the stirring assembly to rotate; located above the filter plate, a rotating shaft two for driving the stirring assembly to rotate is provided, the lower end of the rotating shaft two is provided with a T-shaped connecting seat, and the upper end of the rotating shaft two is provided with a guide assembly between it and the inner wall of the distillation tank for guiding the rotating shaft two in the vertical direction;

[0016] The upper end of the rotating shaft passes through the heat-conducting ring sleeve located in the middle section of the connecting copper pipe. An air cavity is opened in the upper end of the rotating shaft, and a piston plate is movably arranged in the air cavity. An elastic element is provided at the lower end of the piston plate. A connecting plate is fixedly connected to the upper end of the piston plate. The upper end of the connecting plate passes through the rotating shaft and is fixedly connected to the lower end face of the T-shaped connecting seat. A pressure relief valve for relieving pressure in the air cavity is provided at the upper end of the rotating shaft.

[0017] A further improvement is that the stirring assembly includes a long rod arranged horizontally and obliquely upwards, and a short rod connecting the long rod to the first rotating shaft or the second rotating shaft. The lower ends of the long rod and the short rod, located in the upper space of the filter plate, are fitted with V-shaped cutters.

[0018] A further improvement is that the guide assembly includes a limiting seat, a groove with a lower end of the limiting seat, and a spring disposed on the top surface of the groove. The upper end of the second rotating shaft is slidably disposed on the lower end of the limiting seat, and the upper end of the second rotating shaft is connected to the spring.

[0019] The beneficial effects of this invention are as follows:

[0020] (1) The extraction device of this invention occupies a small area and can be adapted to be built in the Torreya grandis planting area, realizing simultaneous production and utilization. It rapidly distills the Torreya grandis aril with water vapor, resulting in fast oil extraction. It turns waste into treasure. Moreover, it requires little investment and can be operated and processed in a timely, efficient, simple and fast manner. It can extract essential oil on the same day it is harvested.

[0021] (2) By setting up an insulation box connected to the condensing mechanism outside the distillation tank, the present invention can absorb the heat of the steam in the inner steam pipe, causing the circulating liquid in the return box to heat up rapidly. With the setting of the circulation pump, the insulation box can be filled with circulating liquid, which can play a role in heat exchange. At the same time, the heat obtained from the heat exchange can be used to keep the distillation tank warm, which can maintain the continuous and stable distillation of Torreya aril in the distillation tank. It can also reduce the working time of the steam generator to a certain extent, which can achieve the effect of energy saving and emission reduction. It is especially suitable for small-scale Torreya aril essential oil extraction process, further reducing the extraction cost.

[0022] (3) The present invention divides the distillation tank into sections by setting a filter plate inside the distillation tank, and each section is equipped with a stirring component. With the connecting copper pipe on the filter plate connected to the heat preservation box, the purpose of vibration stirring and crushing of materials in the upper section can be achieved. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a top view of the partition component in this invention.

[0025] Figure 3 This is a partial cross-sectional structural diagram of the separator component in this invention;

[0026] Figure 4 This is an appendix to the present invention. Figure 1 Enlarged structural diagram at point A in the middle;

[0027] Figure 5 This is a cross-sectional structural diagram of the limiting component in this invention;

[0028] Figure 6 This is a schematic diagram of the stirring assembly in this invention;

[0029] Figure 7 This is a schematic diagram of the V-shaped cutter in this invention.

[0030] In the diagram: 1. Distillation tank; 2. Steam generator; 3. Condensation mechanism; 4. Oil separator; 5. Guide pipe; 6. Insulation box; 7. Connecting pipe one; 8. Connecting pipe two; 11. Feed port; 12. Filter plate; 13. Motor; 14. Shaft one; 15. Stirring assembly; 16. Shaft two; 17. T-shaped connector; 18. Guide assembly; 31. Steam inner pipe; 32. Spiral sleeve; 33. Cooling box; 34. Reflux. 35. Circulating pump; 41. Essential oil outlet; 121. Outer frame; 122. Filter port; 123. Connecting copper pipe; 124. Heat-conducting ring; 141. Air chamber; 142. Piston plate; 143. Pressure relief valve; 144. Connecting plate; 151. Long rod; 152. Short rod; 153. V-shaped cutter; 181. Limit seat; 182. Groove; 183. Spring; 1221. Upper opening; 1222. Lower opening. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above-described contents.

[0032] Example 1

[0033] like Figure 1 As shown, this embodiment of the invention provides a device for extracting essential oil from Torreya grandis aril, including a distillation tank 1, a steam generator 2, a condenser 3, and an essential oil separator 4. An insulation box 6 is provided on the outside of the distillation tank 1.

[0034] In this embodiment, the aril of Torreya grandis is fed into the distillation tank 1 through the feeding port 11 at the top of the distillation tank 1, and then the steam generator 2 is started to introduce hot steam into the distillation tank 1. After the Torreya grandis aril is distilled, steam is generated. The steam enters the condensing mechanism 3 for condensation and then enters the essential oil separator 4, where the essential oil is separated. In addition, by setting an insulation box 6 on the outside of the distillation tank 1, it can be used to balance the internal temperature of the distillation tank 1 during distillation and also to recover the waste heat of the condensing mechanism 3.

[0035] Specifically, in combination Figure 1The condensing mechanism 3 is connected to the interior of the distillation tank 1 through the guide pipe 5. The condensing mechanism 3 is equipped with a steam inner pipe 31 connected to the guide pipe 5, a spiral sleeve 32 sleeved on the steam inner pipe 31, and a cooling box 33 and a reflux box 34 connected to both ends of the spiral sleeve 32. The spiral sleeve 32 is used to exchange heat with the steam inner pipe 31, so that the steam in the pipe is condensed and liquefied. The cooling box 33 is equipped with a cooling plate, which is the only cold source in the entire cooling mechanism 3. The cooling box 33 is connected to the insulation box 6 through the connecting pipe 1 7, and the reflux box 34 is connected to the insulation box 6 through the connecting pipe 2 8. Both the connecting pipe 1 7 and the connecting pipe 2 8 are equipped with a circulation pump 35.

[0036] The insulation box 6, connecting pipe 1 7, cooling box 33, spiral sleeve 32, return box 34 and connecting pipe 2 8 are connected in sequence to form a circulation passage, which is filled with circulating fluid; the circulating fluid can be heat transfer oil or other fluid medium that can conduct heat quickly.

[0037] In this embodiment, a reflux box 34 is set in the condensation mechanism 3 to store the circulating liquid. The circulation path is formed by the sequential connection of the insulation box 6, the connecting pipe 1 7, the cooling box 33, the spiral sleeve 32, the reflux box 34, and the connecting pipe 2 8. On the one hand, it can absorb the heat of the steam in the inner steam pipe 31, causing the circulating liquid in the reflux box 34 to heat up rapidly. With the setting of the circulation pump 35, the insulation box 6 can be filled with circulating liquid, which can achieve heat exchange. At the same time, the heat obtained from the heat exchange can be used to keep the distillation tank 1 warm, which can maintain the continuous and stable distillation of Torreya aril in the distillation tank 1. It can also reduce the working time of the steam generator 2 to a certain extent, which can achieve the effect of energy saving and emission reduction. It is especially suitable for small-scale Torreya aril essential oil extraction process, further reducing the extraction cost.

[0038] In addition, the essential oil extraction device in this invention is suitable for small-scale extraction of essential oil from Torreya grandis arils. During the Torreya grandis harvesting season, due to the limited output of Torreya grandis arils, there may be a situation where the quantity of a certain batch is small. This invention can stop the operation of the cooling plate in the steam generator 2 and the cooling box 33. At this time, the circulating liquid in the circulation path can still maintain a certain residual temperature, so the heat preservation box 6 can continuously keep the distillation tank 1 warm. When the next batch of Torreya grandis arils is delivered, the distillation tank 1 will maintain a certain temperature, so the temperature rise will be smaller when steam distillation is carried out again. Obviously, it can also achieve the purpose of energy saving and emission reduction.

[0039] Furthermore, in combination Figure 1-4A filter plate 12 is horizontally arranged inside the distillation tank 1. A stirring assembly 15 is provided in both the upper and lower spaces of the filter plate 12 inside the distillation tank 1. A motor 13 is also provided inside the distillation tank 1 to drive the stirring assembly 15. The filter plate 12 includes an outer frame 121 and filter ports 122 evenly opened on the outer frame 121. The filter ports 122 include an upper opening 1221 and a lower opening 1222 connected in sequence, and the upper opening 1221 has a trapezoidal cross section. The filter plate 12 also includes a connecting copper pipe 123 provided on the upper end face of the outer frame 121. Both ends of the connecting copper pipe 123 are connected to the heat preservation box 6.

[0040] In this embodiment, by setting a filter plate 12 inside the distillation tank 1, the distillation tank 1 can be divided into sections. When the aril of Torreya grandis enters the distillation tank 1, it will be a mixture of materials of uneven size. After being filtered by the filter plate 12, the smaller aril will enter the lower section. With the stirring components 15 set in each half of the section, and the hot water steam passing through the top of the distillation tank 1, the temperature in the upper half of the tank will be higher and the material volume will be larger, while the temperature in the lower half of the tank will be lower and the material volume will be smaller. This achieves partitioned distillation and improves the overall distillation speed.

[0041] Furthermore, the present invention has made structural improvements to the filter port 122. Compared with the straight-through filter holes in the prior art, this improvement addresses the distillation background of the Torreya grandis aril material in the distillation tank 1 of the present invention, combined with... Figure 3 After being stirred and crushed, the aril will preferentially pass through the upper inlet 1221. Since the upper inlet 1221 has a trapezoidal cross section, the crushed material of Torreya aril will have more contact with the inner wall of the filter, increasing the overall heat transfer of the material and accelerating the distillation process.

[0042] Furthermore, in combination Figure 4 Below the filter plate 12, the output shaft of the motor 13 is connected to a rotating shaft 14 for driving the stirring assembly 15 to rotate; above the filter plate 12, there is a rotating shaft 16 for driving the stirring assembly 15 to rotate. The lower end of the rotating shaft 16 is provided with a T-shaped connecting seat 17, and the upper end of the rotating shaft 16 is provided with a guide assembly 18 for guiding the rotating shaft 16 vertically between it and the inner wall of the distillation tank 1; the upper end of the rotating shaft 14 passes through a heat-conducting ring 124 in the middle section of the connecting copper pipe 123. An air chamber 141 is opened in the upper end of the rotating shaft 14, and a piston plate 142 is movably provided in the air chamber 141. The lower end of the piston plate 142 is provided with an elastic element, and a connecting plate 144 is fixedly connected to the upper end of the piston plate 142. The upper end of the connecting plate 144 passes through the rotating shaft 14 and is fixedly connected to the lower end face of the T-shaped connecting seat 17. The upper end of the rotating shaft 14 is provided with a pressure relief valve 143 for relieving pressure in the air chamber 141.

[0043] Furthermore, in combination Figure 6-7The stirring assembly 15 includes a long rod 151 that is horizontally inclined upward and a short rod 152 that connects the long rod 151 to the first rotating shaft 14 or the second rotating shaft 16. The lower ends of the long rod 151 and the short rod 152 located in the upper space of the filter plate 12 are fitted with V-shaped cutters 153.

[0044] In this embodiment, a connecting copper pipe 123 is provided on the filter plate 12 to communicate with the insulation box 6. This connecting copper pipe 123 serves three purposes: firstly, it allows a fluid loop to be formed inside the insulation box 6, accelerating temperature uniformity within the box; secondly, it conducts heat to the outer frame 121 of the filter plate 12 via the copper pipe 123, ensuring insulation of the filter plate 12 and the internal space of the tank even when the steam generator 2 and cooling plate are not operating, resulting in a smaller temperature rise during the distillation of the next batch of Torreya grandis arils, thus saving energy and reducing emissions; and thirdly, the heat-conducting ring 124 effectively dissipates the heat from the connecting copper pipe 123. The gas is introduced into the gas chamber 141 at the upper end of the rotating shaft 14. The gas chamber 141 is filled with gas. When the gas is heated, it expands and pushes the piston plate 142 and the T-shaped connecting seat 17 upward. When the T-shaped connecting seat 17 moves to a certain position, the pressure relief valve 143 will release the pressure in the upper chamber of the piston plate 142 in the gas chamber 141 and reset under the action of the elastic force of the elastic element and the gravity of the T-shaped connecting seat 17. This cycle repeats, causing the rotating shaft 16 and its connected stirring assembly 15 to vibrate back and forth in the vertical direction. This achieves the effect of stirring while cutting and crushing the aril of Torreya grandis by the cutter 153, which can also accelerate the distillation process.

[0045] In this embodiment, the V-shaped cutter 153 in the stirring assembly 15, located in the upper space of the filter plate 12, can stir the material while breaking up the larger material above, thus accelerating the distillation process.

[0046] Furthermore, in combination Figure 5 The guide assembly 18 includes a limiting seat 181, a groove 182 with a lower end of the limiting seat 181, and a spring 183 disposed on the top surface of the groove 182. The upper end of the rotating shaft 16 is slidably disposed on the lower end of the limiting seat 181, and the upper end of the rotating shaft 16 is connected to the spring 183. A spring support and a sliding bearing are also provided between the spring 183 and the upper end of the rotating shaft 16 to prevent the rotating shaft 16 from rotating and causing the spring 183 to rotate.

[0047] The essential oil extraction device of this invention occupies a small area and can be built near the Torreya grandis planting site. The steam distillation of fresh Torreya grandis arils is effective. In practical applications, the amount produced can be distilled and extracted in real time. After extraction, the distillation tank 1 can be kept warm by the insulated box 6 to facilitate the distillation and extraction of the next batch of arils.

[0048] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A device for extracting essential oil from Torreya grandis aril, comprising a distillation tank (1), a steam generator (2), a condensation mechanism (3), and an essential oil separator (4), characterized in that: The outside of the distillation tank (1) is equipped with an insulation box (6); The condensing mechanism (3) is connected to the interior of the distillation tank (1) through the guide pipe (5). The condensing mechanism (3) is provided with a steam inner pipe (31) connected to the guide pipe (5), a spiral sleeve (32) sleeved on the steam inner pipe (31), and a cooling box (33) and a reflux box (34) connected to both ends of the spiral sleeve (32). The cooling box (33) is connected to the heat preservation box (6) through a connecting pipe (7), and the reflux box (34) is connected to the heat preservation box (6) through a connecting pipe (8). Both the connecting pipe (7) and the connecting pipe (8) are provided with a circulation pump (35). The heat preservation box (6), the first connecting pipe (7), the cooling box (33), the spiral sleeve (32), the return box (34) and the second connecting pipe (8) are connected in sequence to form a circulation passage, and the circulation passage is filled with circulating liquid; A filter plate (12) is horizontally arranged inside the distillation tank (1). A stirring assembly (15) is provided inside the distillation tank (1) and in the space at the upper and lower ends of the filter plate (12). A motor (13) that drives the stirring assembly (15) is also provided inside the distillation tank (1). The filter plate (12) includes an outer frame (121) and filter ports (122) evenly distributed on the outer frame (121). The filter ports (122) include an upper opening (1221) and a lower opening (1222) connected in sequence, and the upper opening (1221) has a trapezoidal cross section. The filter plate (12) also includes a connecting copper pipe (123) disposed on the upper end face of the outer frame (121), and both ends of the connecting copper pipe (123) are connected to the heat preservation box (6); Below the filter plate (12), the output shaft of the motor (13) is connected to a rotating shaft one (14) for driving the stirring assembly (15) to rotate; above the filter plate (12), there is a rotating shaft two (16) for driving the stirring assembly (15) to rotate, the lower end of the rotating shaft two (16) is provided with a T-shaped connecting seat (17), and the upper end of the rotating shaft two (16) is provided with a guide assembly (18) for guiding the rotating shaft two (16) in the vertical direction between it and the inner wall of the distillation tank (1). The upper end of the rotating shaft (14) passes through the heat-conducting ring (124) in the middle section of the connecting copper pipe (123). An air chamber (141) is opened in the upper end of the rotating shaft (14). A piston plate (142) is movably arranged in the air chamber (141). An elastic element is provided at the lower end of the piston plate (142). A connecting plate (144) is fixedly connected to the upper end of the piston plate (142). The upper end of the connecting plate (144) passes through the rotating shaft (14) and is fixedly connected to the lower end face of the T-shaped connecting seat (17). A pressure relief valve (143) is provided at the upper end of the rotating shaft (14) for relieving pressure in the air chamber (141).

2. The Torreya grandis seed coat essential oil extraction device according to claim 1, characterized in that: The stirring assembly (15) includes a long rod (151) arranged horizontally and obliquely upward, and a short rod (152) connecting the long rod (151) to the first rotating shaft (14) or the second rotating shaft (16). The lower ends of the long rod (151) and the short rod (152) located in the upper space of the filter plate (12) are fitted with V-shaped cutters (153).

3. The Torreya grandis seed coat essential oil extraction device according to claim 1, characterized in that: The guide assembly (18) includes a limiting seat (181), a groove (182) with the lower end of the limiting seat (181), and a spring (183) disposed on the top surface of the groove (182). The upper end of the rotating shaft (16) is slidably disposed on the lower end of the limiting seat (181), and the upper end of the rotating shaft (16) is connected to the spring (183).

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