Organic rose essential oil extraction device

Abstract

The utility model relates to plant essential oil extraction equipment technical field discloses an organic rose essential oil extraction device, including distillation kettle, and distillation kettle is equipped with raw material entrance, residue export, steam entrance, steam export, water pipe interface and secondary raw liquid entrance, raw material entrance intercommunication contains two -stage crushing unit of coarse cutting mechanism, fine crushing mechanism and screening mechanism, residue export intercommunication centrifugal dehydrator, steam entrance intercommunication steam gas source, and steam export connects condenser and oil -water separator in proper order, water pipe interface intercommunication water source, secondary raw liquid entrance and the liquid collection shell intercommunication of centrifugal dehydrator, the device can realize rose raw material efficient pretreatment and full distillation, and the residue raw liquid reflux enhances raw material utilization, is applicable to rose essential oil extraction.

Description

Technical Field

[0001] This utility model relates to the technical field of plant essential oil extraction equipment, specifically to an organic rose essential oil extraction device. Background Technology

[0002] Rose essential oil, as a high-value natural fragrance, is widely used in the cosmetics, pharmaceutical, and food industries. Its extraction efficiency and quality directly affect the product value. Currently, the mainstream extraction method for rose essential oil is steam distillation. The core process includes raw material crushing, distillation, and oil-water separation. Among these, raw material pretreatment and distillation efficiency are key factors affecting the yield of essential oil.

[0003] In existing technologies, rose petal crushing often employs single-stage chopping or grinding equipment, which results in uneven particle size. Single-stage crushing struggles to break petals into uniformly fine particles, especially for rose varieties with coarser fibers. This leads to insufficient contact between the petals and steam during distillation, incomplete release of essential oils, and ultimately, a low yield. Furthermore, the crushed particles often contain excessively large impurities. Existing equipment lacks efficient screening and reflux mechanisms; these large impurities entering the distillation vessel not only further reduce distillation efficiency but may also clog pipes, affecting the normal operation of the equipment.

[0004] Furthermore, the rose residue after distillation still contains a certain amount of essential oil concentrate. However, existing centrifugal dehydration equipment is mostly used only for solid-liquid separation and lacks a targeted concentrate recovery channel, resulting in the loss of some essential oil with the residue and a significant reduction in raw material utilization. In addition, the feeding structure design of the crushing unit and the distillation kettle is unreasonable, which easily leads to problems such as material accumulation and conveying blockage, seriously affecting continuous production efficiency.

[0005] Therefore, there is an urgent need to design an organic rose essential oil extraction device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an organic rose essential oil extraction device to solve the problems of uneven crushing and incomplete recovery in existing equipment, thereby improving the extraction efficiency and raw material utilization rate of rose essential oil.

[0007] To achieve the above objectives, this utility model provides the following technical solution: An organic rose essential oil extraction apparatus includes a distillation vessel, wherein the distillation vessel has the following openings: The raw material inlet is connected to a two-stage crushing unit, and the residue outlet is connected to a centrifugal dewatering machine. The two-stage crushing unit includes a coarse cutting mechanism, a fine crushing mechanism, and a screening mechanism arranged sequentially along the material flow direction. The system includes a steam inlet and a steam outlet. The steam inlet is connected to a steam source, and the steam outlet is connected in sequence to a condenser and an oil-water separator along a pipeline. A water pipe interface, which is connected to a water source; A secondary raw liquid inlet is connected to the liquid collection shell of the centrifugal dehydrator.

[0008] Preferably, the coarse cutting mechanism includes a feed hopper, and two rotating shredders arranged side by side are disposed below the feed hopper, with the teeth of the two rotating shredders being staggered.

[0009] Preferably, a conical guide plate is provided below the two rotating shredders; the bottom opening of the conical guide plate faces the two rotating shredders, and the top opening faces the fine shredding mechanism.

[0010] Preferably, the fine grinding mechanism includes an upper grinding disc and a lower grinding disc that cooperate with each other. The upper grinding disc is a fixed convex conical structure, and the lower grinding disc is a rotatable concave conical structure. The concave conical surface of the lower grinding disc and the convex conical surface of the upper grinding disc are concentrically fitted.

[0011] Preferably, the opposing surfaces of the upper and lower grinding discs are provided with annular grinding patterns.

[0012] Preferably, the screening mechanism includes a housing, and an annular guide plate and an annular screen are provided inside the housing; the annular guide plate and the annular screen are inclined against the inner wall of the housing, and the inclination directions of the annular guide plate and the annular screen are opposite; the annular guide plate has a rectangular notch at one end in the vertical direction near the annular screen.

[0013] Preferably, the screening mechanism further includes a reflux trough and a collection chamber; the reflux trough extends through the shell and is located near the annular screen at one end away from the annular guide plate; the collection chamber is located directly below the annular screen, and the discharge channel of the collection chamber is connected to the raw material inlet of the distillation kettle.

[0014] The beneficial effects of this utility model are: 1. This utility model achieves uniform crushing of rose petals through the sequential cooperation of the coarse cutting mechanism and the fine crushing mechanism in the dual-stage crushing unit. Then, combined with the annular guide plate, annular screen and reflux trough of the screening mechanism, it completes the efficient screening and reflux of impurities exceeding the standard, avoiding the problem of low distillation efficiency caused by uneven crushing particle size and impurity blockage, and improving the full release of essential oils.

[0015] 2. This utility model uses a centrifugal dehydration mechanism to dehydrate the residue after distillation. The separated essential oil concentrate is collected by the collection shell of the centrifugal dehydration mechanism, and then the concentrate is returned to the distillation kettle through a secondary concentrate inlet. This effectively recovers the essential oil concentrate in the residue, reduces the loss of essential oil with the residue, and improves the utilization rate of raw materials. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 This is a schematic diagram of the structure of the two-stage crushing unit in Embodiment 1 of this utility model; Figure 3 This is a top view of the upper and lower grinding discs of Embodiment 1 of this utility model: Figure 4 This is a schematic diagram of the structure of the annular guide plate in Embodiment 1 of this utility model.

[0017] Reference numerals: 10-Distillation vessel, 11-Raw material inlet, 12-Residue outlet, 13-Steam inlet, 14-Water pipe interface, 15-Steam outlet, 16-Secondary raw liquid inlet, 20-Dual-stage crushing unit, 21-Feed hopper, 22-Rotating shredder, 23-Conical guide plate, 24-Upper grinding disc, 25-Lower grinding disc, 26-Annular guide plate, 27-Annular screen, 28-Collection chamber, 29-Reflux trough, 30-Condenser, 40-Oil-water separator, 50-Centrifugal dehydrator. Detailed Implementation

[0018] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0019] Example 1 like Figures 1 to 4 As shown, this embodiment discloses an organic rose essential oil extraction device, including a distillation kettle 10, on which: The raw material inlet 11 and the residue outlet 12 are connected to a two-stage crushing unit 20 and a centrifugal dehydrator 50, which are used to export the petal residue remaining after distillation and dehydrate it. The two-stage crushing unit 20 includes a coarse cutting mechanism, a fine crushing mechanism and a screening mechanism arranged in sequence along the material flow direction to ensure that the raw material is crushed into uniform particle size to meet the distillation requirements. Steam inlet 13 and steam outlet 15, the steam inlet 13 is connected to a steam source, and the steam outlet 15 is connected to a condenser 30 and an oil-water separator 40 in sequence along the pipeline. Water pipe interface 14 is connected to a water source; Secondary raw liquid inlet 16 is connected to the liquid collection shell of centrifugal dehydrator 50.

[0020] The coarse cutting mechanism includes a feed hopper 21, and two rotating shredders 22 arranged side by side are provided below the feed hopper 21. In this embodiment, the rotating shredders 22 are fixedly supported by bearing seats. The teeth of the two rotating shredders 22 are staggered. In order to achieve synchronous rotation in opposite directions, the two rotating shredders 22 can be connected by a gear transmission mechanism.

[0021] A conical guide plate 23 is provided below the two rotating shredders 22; the bottom opening of the conical guide plate 23 faces the two rotating shredders 22, and the top opening faces the fine crushing mechanism, so as to form the feed inlet of the fine crushing mechanism.

[0022] The fine grinding mechanism includes an upper grinding disc 24 and a lower grinding disc 25 that cooperate with each other. The upper grinding disc 24 is a fixed convex conical structure, and the lower grinding disc 25 is a rotatable concave conical structure. The concave conical surface of the lower grinding disc 25 and the convex conical surface of the upper grinding disc 24 are concentrically fitted. The concentric conical surface fit allows the rose petals to be uniformly ground as they slide down the conical surface under gravity. The convex-concave fit creates a gradually narrowing grinding gap, further crushing the raw material to 0.5-2mm and significantly increasing the contact area with steam. To drive the rotation of the lower grinding disc 25, in this embodiment, a drive motor (not shown in the figure) is connected to the bottom of the lower grinding disc 25 via a coupling.

[0023] Both the upper grinding disc 24 and the lower grinding disc 25 have annular grinding patterns on their opposite surfaces. To improve the grinding effect, the annular grinding patterns can be made of triangular cross-section. The grinding patterns can enhance the shearing force on the material, prevent slippage, and ensure stable fine crushing effect.

[0024] The screening mechanism includes a housing, within which are an annular guide plate 26 and an annular screen 27. The annular guide plate 26 and the annular screen 27 are inclined against the inner wall of the housing, with opposite inclination directions. The annular guide plate 26 has a rectangular notch at one end near the annular screen 27 in the vertical direction. The inclined design of the annular guide plate 26 guides the finely crushed material towards the rectangular notch, while the reverse inclination of the screen facilitates the falling of qualified material into the collection chamber, preventing substandard material from entering, thus achieving graded screening.

[0025] The screening mechanism also includes a reflux trough 29 and a collection chamber; the reflux trough 29 runs through the shell and is located near the end of the annular screen 27 away from the annular guide plate 26, and is used to return the substandard material to the coarse cutting mechanism for reprocessing to ensure that the raw material entering the distillation kettle 10 has a uniform particle size; the collection chamber is located directly below the annular screen 27 and the discharge channel of the collection chamber is connected to the raw material inlet 11 of the distillation kettle 10.

[0026] Its specific working principle is as follows: Rose petals to be processed are fed into the feed hopper 21 of the coarse cutting mechanism. Under the action of two counter-rotating rotary shredders 22, they are initially torn into 5-10mm fragments. The fragments are then concentrated and guided into the fine crushing mechanism by the conical guide plate 23. Between the convex conical upper grinding disc 24 and the rotating concave conical lower grinding disc 25, the fragments are further ground into fine particles of 0.5-2mm by the annular grinding grooves of the conical surfaces, and then enter the screening mechanism. The finely crushed particles are guided to the rectangular notch by the annular guide plate 26 and fall into the counter-inclined annular screen 27. The particles with qualified particle size pass through the screen and enter the collection chamber, and are transported to the raw material inlet 11 of the distillation kettle 10 through the discharge channel (or screw conveyor). The oversized particles that do not pass through the screen slide along the screen to the return trough 29 and return to the coarse cutting mechanism for re-crushing.

[0027] After the qualified rose petals enter the distillation vessel 10 and are moderately moistened by water supplied through the water pipe interface 14, saturated steam is introduced into the vessel through the steam inlet 13. The steam fully contacts the rose petals and carries the essential oil components out through the steam outlet 15. After being condensed into an oil-water mixture by the condenser 30, the mixture enters the oil-water separator 40, where rose essential oil is finally obtained. After distillation, the remaining petal residue is discharged from the residue outlet 12 to the centrifugal dehydrator 50. After dehydration, the essential oil concentrate separated from the residue is collected by the liquid collection shell and returned to the distillation vessel 10 for redistillation through the secondary liquid inlet 16, maximizing the utilization rate of raw materials.

[0028] In summary, this embodiment achieves efficient pretreatment and full distillation of rose raw materials through the synergistic design of two-stage crushing, precise screening, and original liquid recovery. This not only ensures the fullness of essential oil extraction but also significantly improves the utilization rate of raw materials through residue dehydration and reflux, providing reliable equipment support for the continuous and efficient extraction of rose essential oil.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An organic rose essential oil extraction device, characterized in that, Includes a distillation vessel, wherein the distillation vessel has the following openings: The raw material inlet is connected to a two-stage crushing unit, and the residue outlet is connected to a centrifugal dewatering machine. The two-stage crushing unit includes a coarse cutting mechanism, a fine crushing mechanism, and a screening mechanism arranged sequentially along the material flow direction. The system includes a steam inlet and a steam outlet. The steam inlet is connected to a steam source, and the steam outlet is connected in sequence to a condenser and an oil-water separator along a pipeline. A water pipe interface, which is connected to a water source; A secondary raw liquid inlet is connected to the liquid collection shell of the centrifugal dehydrator.

2. The organic rose essential oil extraction device according to claim 1, characterized in that, The coarse cutting mechanism includes a feed hopper, and two rotating shredders arranged side by side are provided below the feed hopper, with the teeth of the two rotating shredders being staggered.

3. The organic rose essential oil extraction device according to claim 2, characterized in that, A conical guide plate is provided below the two rotating shredders; the bottom opening of the conical guide plate faces the two rotating shredders, and the top opening faces the fine shredding mechanism.

4. The organic rose essential oil extraction device according to claim 3, characterized in that, The fine grinding mechanism includes an upper grinding disc and a lower grinding disc that cooperate with each other. The upper grinding disc is a fixed convex conical structure, and the lower grinding disc is a rotatable concave conical structure. The concave conical surface of the lower grinding disc and the convex conical surface of the upper grinding disc are concentrically fitted.

5. The organic rose essential oil extraction device according to claim 4, characterized in that, The upper and lower grinding discs are both provided with annular grinding patterns on their opposite surfaces.

6. The organic rose essential oil extraction device according to claim 1, characterized in that, The screening mechanism includes a housing, and an annular guide plate and an annular screen are provided inside the housing; The annular guide plate and the annular screen are inclined and attached to the inner wall of the shell, and the annular guide plate and the annular screen are inclined in opposite directions; The annular guide plate has a rectangular notch at one end in the vertical direction near the annular screen.

7. An organic rose essential oil extraction device according to claim 6, characterized in that, The screening mechanism also includes a reflux trough and a material collection chamber; The return channel extends through the housing and is located near the end of the annular screen away from the annular guide plate; The material collection chamber is located directly below the annular screen, and the discharge channel of the material collection chamber is connected to the raw material inlet of the distillation vessel.

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