Continuous feeding essential oil extraction device and system

Abstract

The utility model provides a continuous feeding essential oil extraction device and system, the device comprises a first conveying mechanism and a second conveying mechanism which are arranged in a crossed and inclined manner, the discharge port of the first conveying mechanism is communicated with the return port of the second conveying mechanism, the discharge port of the second conveying mechanism is communicated with the return port of the first conveying mechanism, and the discharge port of the second conveying mechanism is communicated with the return port of the second conveying mechanism. And a material return port of the first conveying mechanism and / or the second conveying mechanism is arranged below the discharge port. The first conveying mechanism and the second conveying mechanism are arranged in a crossed and inclined mode, the continuous feeding and cyclic heating essential oil extraction mechanization and automation operation technology is achieved, the essential oil production efficiency is improved, and the essential oil production cost is reduced. The materials in transportation are heated through the heating medium, so that the energy consumption is low, the materials are uniformly heated, the treatment capacity is large, the oil yield is high, and the quality is good.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction, and in particular to a continuous feeding essential oil extraction device and system. Background Art

[0002] The extraction methods of plant essential oils include distillation, liposuction, maceration, extraction, compression and soaking, etc., and distillation can be said to be the oldest and most widely used method for extracting essential oils. The distillation process includes heating the plant with water or steam (or both) in a distillation container to discharge the water vapor and produce a concentrate. The liquid produced by the above process is a mixture of oil and water. Usually the oil floats on the water, so the water is heavier than the oil. If the oil is heavier than the water (such as clove oil), the oil will sink to the bottom, and the oil and water can be separated at this time. At present, most of the extraction of plant essential oils uses high-temperature steam for distillation, which consumes a lot of energy and raw materials; direct contact between steam and plant essential oils easily brings impurities into the essential oils, which increases the difficulty of subsequent processing procedures. High-temperature steam is also easy to damage the essential oils, affecting the extraction rate, and invisibly increasing production costs.

[0003] A screw conveyor is a machine that uses a motor to drive the screw to rotate and push materials to achieve the purpose of conveying. Screw conveyors can be divided into two types according to the conveying method: shaftless screw conveyors and shafted screw conveyors. In terms of appearance, they can be divided into U-shaped screw conveyors and tubular screw conveyors. In the prior art, most screw conveyors are prone to material agglomeration during the material conveying process, which causes blockage and reduces the working efficiency of the device. In order to avoid problems such as agglomeration and blockage of materials during the conveying process, some production lines also need to heat the materials conveyed by the screw conveyor.

[0004] In industry, spiral heating conveyors are used as extraction devices for essential oils. However, since spiral heating conveyors do not have the function of cyclically heating the continuously fed materials to extract essential oils, large-scale essential oil evaporation and extraction devices and corresponding supporting facilities are usually used in industrial production to feed materials in batches and extract materials intermittently. Although this operation ensures the sealing of the distillation process, due to the intermittent feeding and extraction, the equipment needs to be shut down for each feeding and discharging, and the feeding needs to be resumed after discharging. At the same time, since the essential oil content in plants is only a few percent, the amount of essential oil extracted at a single time is small, which limits the production efficiency of essential oils and the processing cost of essential oils remains high. Not only does it increase equipment costs and labor costs, but it is also not conducive to the layout of workshop equipment.

[0005] Therefore, in order to ensure the airtightness of the distillation process and avoid intermittent feeding, discharging and extraction operations, it is urgent to design a continuous feeding essential oil extraction device and system to solve the above technical problems. Utility Model Content

[0006] In order to solve the technical problem of ensuring the airtightness of the distillation process while satisfying continuous feeding and continuous cyclic extraction of essential oils, the present application provides a continuous feeding essential oil extraction device and system to solve the above-mentioned technical defects.

[0007] On the one hand, the utility model proposes a continuous feeding essential oil extraction device, which includes a first conveying mechanism and a second conveying mechanism arranged crosswise and obliquely, the discharge port of the first conveying mechanism is connected to the return port of the second conveying mechanism, the discharge port of the second conveying mechanism is connected to the return port of the first conveying mechanism, and the return port of the first conveying mechanism and / or the second conveying mechanism is arranged below the discharge port. Through the coordinated arrangement of the return port and the discharge port of the first conveying mechanism, and the return port and the discharge port of the second conveying mechanism, the cyclic heating transportation of the material between the first conveying mechanism and the second conveying mechanism is realized to extract the essential oil contained in the material.

[0008] In some specific embodiments, the first conveying mechanism and / or the second conveying mechanism are provided with a screw conveying assembly and a heating shell, and the conveying direction of the screw conveying assembly is adapted to the extension direction of the heating shell. With the provision of the heating shell, the sealing of the essential oil extraction is ensured while solving the problem that the screw conveyor is prone to material agglomeration during the material conveying process, thereby causing blockage and reducing the working efficiency of the device.

[0009] In some specific embodiments, the spiral conveying assembly includes a spiral blade and a bearing seat, and the spiral blade is connected to the bearing seat.

[0010] In some specific embodiments, the heating shell includes an outer shell, an inner shell, and a jacket cavity formed integrally with the inner shell and the outer shell. With the arrangement of the jacket cavity, the material is heated evenly, and a repeated cycle operation of heating and extracting the material while transporting is achieved.

[0011] In some specific embodiments, the outer shell is provided with a medium inlet and a medium outlet which are connected to the jacket cavity. The medium inlet and the medium outlet are provided for recycling the heating medium and ensuring the controllable operation of the heating temperature.

[0012] In some specific embodiments, a steam delivery pipe is provided on the first delivery mechanism and / or the second delivery mechanism. With the provision of the steam delivery pipe, it is convenient to automatically collect the essential oil vapor and obtain the crude essential oil product.

[0013] In some specific embodiments, a feed port is provided in the conveying direction of the first conveying mechanism, and the feed port is provided at the front end of the return port of the first conveying mechanism.

[0014] On the other hand, the utility model provides a continuous feeding essential oil extraction system, which includes the above-mentioned continuous feeding essential oil extraction device and a feeding bin, wherein the discharge end of the feeding bin is connected to the first conveying mechanism.

[0015] In some specific embodiments, the system further comprises a condenser and a storage tank connected in sequence, wherein the condenser is connected to the steam delivery pipe of the first delivery mechanism and / or the second delivery mechanism. The condenser is used to cool the essential oil vapor distilled from the first delivery mechanism and the second delivery mechanism.

[0016] In some specific embodiments, the system further comprises a vacuum pump connected to the storage tank, which is used for decompression operation when heating the essential oil in the extract material.

[0017] Compared with the prior art, the beneficial results of the utility model are:

[0018] 1. By utilizing the cross-tilted arrangement of the first conveying mechanism and the second conveying mechanism, the material can be cyclically heated and extracted, the production efficiency of essential oils can be improved, and the production cost of essential oils can be reduced.

[0019] 2. Heat the materials in transit through heating media to ensure the sealing of the distillation process while avoiding intermittent feeding, realize cyclic automatic extraction of essence, and reduce equipment and labor costs.

[0020] 3. The continuous feeding essential oil extraction device and system of the present application has a mechanized and automated continuous distillation function. The first conveying mechanism and / or the second conveying structure has a simple structure, good sealing performance, safe and convenient operation, and low manufacturing cost, which reduces the operational risk of the essential oil extraction process. The equipment occupies a small area and avoids occupying workshop space and disrupting the workshop layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the utility model. It will be easy to recognize many expected advantages of other embodiments and embodiments because they become better understood by reference to the following detailed description. The elements of the accompanying drawings are not necessarily in proportion to each other. The same reference numerals refer to corresponding similar parts.

[0022] Figure 1 It is a schematic diagram of the overall structure of a continuous feeding essential oil extraction device and system according to an embodiment of the utility model;

[0023] Figure 2 is a structural schematic diagram of a first conveying mechanism according to an embodiment of the utility model;

[0024] Figure 3It is a working schematic diagram of a continuous feeding essential oil extraction system according to an embodiment of the utility model.

[0025] The meaning of the numbers in the figure: 100-feeding bin, 101-feeding fan, 200-first conveying mechanism, 201-first return port, 202-first medium inlet, 203-first medium outlet, 204-first steam delivery pipe, 205-first outlet, 206-feeding port, 207-bearing seat, 208-inner shell, 209-outer shell, 210-jacket cavity, 211-spiral blade, 300-second delivery Conveying mechanism, 301-second return port, 302-second medium inlet, 303-second medium outlet, 304-second steam conveying pipe, 305-second discharge port, 306-slag discharge port, 307-slag discharge fan, 400-condenser, 401-condensing medium inlet, 402-condensing medium outlet, 403-essential oil outlet, 500-storage tank, 501-exhaust port, 600-vacuum pump, 601-exhaust absorption duct. DETAILED DESCRIPTION

[0026] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present invention can be practiced. To this end, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures described. Because the components of the embodiments can be positioned in several different orientations, directional terms are used for the purpose of illustration and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0027] The utility model proposes a continuous feeding essential oil extraction device and system. Figure 1 The overall structural schematic diagram of a continuous feeding essential oil extraction device and system of an embodiment of the utility model is shown, and the system includes a feed bin 100, a first conveying mechanism 200 and a second conveying mechanism 300, a condenser 400, a storage tank 500 and a vacuum pump 600 which are sequentially connected. The first conveying mechanism 200 and the second conveying mechanism 300 are respectively connected to the condenser 400 through the first steam conveying pipe 204 and the second steam conveying pipe 304, and the condenser 400 is connected to the vacuum pump 600 through the storage tank 500. The continuous feeding essential oil extraction device includes the first conveying mechanism 200 and the second conveying mechanism 300, and the first conveying mechanism 200 and the second conveying mechanism 300 are cross-tilted to realize the process of automatically extracting essential oil while feeding the material continuously and uninterruptedly.

[0028] In a specific embodiment, the first conveying mechanism 200 is provided with a first return port 201, a first medium inlet 202, a first medium outlet 203, a first steam conveying pipe 204, a first discharge port 205 and a feed port 206, and the second conveying mechanism 300 is provided with a second return port 301, a second medium inlet 302, a second medium outlet 303, a second steam conveying pipe 304, a second discharge port 305 and a slag discharge port 306. The first discharge port 205 is connected with the second return port 301, and the second discharge port 305 is connected with the first return port 201. The first return port 201 and the second return port 301 are arranged below the discharge port, and the first discharge port 205 and the second discharge port 305 are respectively arranged directly above the second return port 301 and the first return port 201, so that the material can slide to the second conveying mechanism 300 and the first conveying mechanism 200 by its own gravity for repeated transportation and extraction operations. In the material conveying direction, the feed port 206 is arranged before the first return port 201, and the slag discharge port 307 is arranged after the second medium inlet 302. The end of the slag discharge port 306 is connected to a slag discharge fan 307, and the slag discharge port 306 is used to discharge the material after the essential oil is extracted. The discharge speed of the material after the essential oil is extracted from the slag discharge port 306 can be controlled by setting the slag discharge fan 307. The first steam conveying pipe 204 and the second steam conveying pipe 304 are connected in parallel to the condenser 400 to convey the essential oil vapor to the condenser 400, and the crude essential oil after condensation is stored in the storage tank 500.

[0029] Further references Figure 2 , Figure 2 FIG. 2 is a schematic diagram showing the structure of a first conveying mechanism of an embodiment of the present utility model. Figure 1 and Figure 2 As shown, the first conveying mechanism 200 and / or the second conveying mechanism 300 are provided with a screw conveying assembly and a heating shell, and the conveying direction of the screw conveying assembly is adapted to the extending direction of the heating shell.

[0030] In a specific embodiment, the first conveying mechanism 200 and the second conveying mechanism 300 have a spiral conveying assembly of the same structure, and the spiral conveying assembly includes a spiral blade 211 and a bearing seat 207, and the spiral blade 211 is connected to the bearing seat 207. The heating shell includes an outer shell 209, an inner shell 208, and a jacket cavity 210 formed integrally by the inner shell 208 and the outer shell 209. The conveying direction of the spiral blade 211 is adapted to the extension direction of the jacket inner cavity 210. The outer shell 209 is provided with a first medium inlet 202 and a first medium outlet 203 connected to the jacket cavity 210. Specifically, the first return port 201 and the second return port 301 are matched with the first medium inlet 202 and the first medium outlet 203, the second medium inlet 302 and the second medium outlet 303, so that the material is circulated and heated between the first conveying mechanism 200 and the second conveying mechanism 300 to extract the essential oil. Preferably, the heating medium of the first conveying mechanism 200 and the second conveying mechanism 300 is heat transfer oil, and the temperature is controlled at 130°C to 160°C.

[0031] In a specific embodiment, the feed bin 100 is arranged at the front end of the first conveying mechanism 200 for temporary storage and addition of materials, and a feed fan 101 is arranged at the discharge end of the discharge bin 100, and the feed amount and the speed of the materials added from the feed port 206 to the first conveying mechanism 200 are controlled by adjusting the frequency of the feed fan 101. Preferably, the feed amount is set at 250-300Kg / H.

[0032] In a specific embodiment, the condensing tube 400 is provided with a condensing medium inlet 401, a condensing medium outlet 402 and an essential oil outlet 403. The condensing tube 400 uses water as the condensing medium. The water temperature at the condensing medium inlet 401 is controlled at 20°C to 30°C. The steam essential oil distilled from the first steam delivery pipe 204 and the second steam delivery pipe 304 is condensed and introduced into the storage tank 500 through the essential oil outlet 403. The vacuum pump 600 is connected to the exhaust port 501 of the storage tank 500 for decompression operation during essential oil extraction. When performing continuous extraction, the vacuum pump controls the vacuum degree at -0.06MPa to -0.08MPa. The vacuum pump 600 is provided with an exhaust gas absorption conduit 601 for exhaust gas derivation.

[0033] Continue to refer Figure 3 , shows a schematic diagram of the operation of a continuous feeding essential oil extraction system according to an embodiment of the utility model. Figure 3 As shown, the material passes through the feed bin 100, the feed fan 101, the first conveying mechanism 200 and the second conveying mechanism 300 in turn to realize a cyclic repeated heating, transportation and extraction process. The extracted biomass essential oil is carried by the steam distilled from the first steam conveying pipe 204 and the second steam conveying pipe 304 through the condenser 400 for condensation treatment, and then stored in the storage tank 500 to obtain the crude essential oil.

[0034] The continuous feeding essential oil extraction device and system of the present application can continuously and automatically convey materials to the continuous feeding essential oil extraction device, and realize indirect heating to evaporate plant essential oils. It not only effectively prevents impurities from being brought in, ensures the cleanliness of plant essential oils, but also avoids the agglomeration and clogging of materials during the transportation process, has the function of mechanized and automated continuous distillation, and has the characteristics of low energy consumption, uniform heating of materials, large processing capacity, high essential oil yield and good quality. At the same time, the present invention also reduces the danger of extraction process operation, saves manpower, and reduces the production cost of enterprises.

[0035] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that the combination of these measures cannot be used to profit. Any figure mark in the claims should not be considered to limit the scope.

Claims

1. A continuous feeding essential oil extraction device, characterized in that, It comprises a first conveying mechanism and a second conveying mechanism which are arranged crosswise and obliquely, wherein the discharge port of the first conveying mechanism is connected with the return port of the second conveying mechanism, the discharge port of the second conveying mechanism is connected with the return port of the first conveying mechanism, and the return port of the first conveying mechanism and / or the second conveying mechanism is arranged below the discharge port.

2. A continuous feeding essential oil extraction device according to claim 1, characterized in that: The first conveying mechanism and / or the second conveying mechanism is provided with a screw conveying component and a heating shell, and the conveying direction of the screw conveying component is adapted to the extending direction of the heating shell.

3. A continuous feeding essential oil extraction device according to claim 2, characterized in that: The heating shell comprises an outer shell, an inner shell and a jacket cavity formed integrally by the inner shell and the outer shell.

4. A continuous feeding essential oil extraction device according to claim 2, characterized in that: The spiral conveying assembly comprises a spiral blade and a bearing seat, and the spiral blade is connected to the bearing seat.

5. A continuous feeding essential oil extraction device according to claim 3, characterized in that: The outer shell is provided with a medium inlet and a medium outlet which are communicated with the jacket cavity.

6. A continuous feeding essential oil extraction device according to claim 1, characterized in that: The first conveying mechanism and / or the second conveying mechanism is provided with a steam conveying pipe.

7. A continuous feeding essential oil extraction device according to claim 1, characterized in that: A feed port is arranged in the conveying direction of the first conveying mechanism, and the feed port is arranged at the front end of the return port of the first conveying mechanism.

8. A continuous feed essential oil extraction system, characterized in that: It comprises the continuous feeding essential oil extraction device as described in any one of claims 1 to 7, and also comprises a feeding bin, wherein the discharge end of the feeding bin is connected to the first conveying mechanism.

9. A continuous feed essential oil extraction system according to claim 8, characterized in that: The system further comprises a condenser and a storage tank which are connected in sequence, wherein the condenser is connected to the steam delivery pipe of the first delivery mechanism and / or the second delivery mechanism.

10. A continuous feed essential oil extraction system according to claim 9, characterized in that: The system also includes a vacuum pump connected to the storage tank.

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