A device for extracting oil from Korean pine nuts

Abstract

The utility model belongs to the extraction equipment field, and relates to a Korean pine nut oil extraction device. The utility model solves the technical problem of low extraction efficiency caused by the structure of the extraction equipment during the extraction of Korean pine nut oil in the laboratory. The collection tank is installed at the bottom of the extraction device, the condensing box is installed at the top of the extraction device, the collection tank is communicated with the condensing box through the evaporation pipe, the liquid storage tank is installed at the lower side of the condensing box, the condensing box is communicated with the liquid storage tank through the first condensing pipe, the first valve is installed on the first condensing pipe, the extraction tank is installed at the lower side of the liquid storage tank, the condensing box is communicated with the extraction tank through the second condensing pipe, the second valve is installed on the second condensing pipe, the liquid storage tank is communicated with the extraction tank through the connecting pipe, the filter cartridge is arranged in the extraction tank, the siphon pipe is installed at the bottom of the extraction tank, and the output end of the siphon pipe is communicated with the collection tank. The design of the liquid storage tank and the condensing box improves the extraction efficiency. The utility model is used for the extraction of Korean pine nut oil.

Description

Technical Field

[0001] This utility model relates to a red pine nut kernel oil extraction device, belonging to the field of extraction equipment. Background Technology

[0002] Korean pine nut oil has the effects of lowering blood lipids, regulating immunity, and anti-oxidation. The unsaturated fatty acids in Korean pine nut oil can lower blood cholesterol and triglyceride levels, reducing the risk of cardiovascular disease.

[0003] In research on pine nut oil, the extraction process in research institutes and university laboratories involves sample preparation. This includes shelling dried pine nuts and crushing or grinding them into uniform fine particles to break down cell walls and increase the contact area with the solvent. The ground pine nut powder is then extracted using a Soxhlet extraction method. After each siphon operation, the extraction tube is emptied, and the solvent in the condenser is allowed to slowly drip down, accumulating to a level sufficient for another siphon. During this period, the sample in the extraction tube is in a "resting" or "semi-immersed" state; the extraction system is not performing efficient extraction. Efficient extraction only occurs during the short period when the sample is completely submerged and continuously immersed in the liquid within the extraction tube.

[0004] In summary, the extraction of red pine nut oil in research institutes or university laboratories suffers from low extraction efficiency due to the inherent structural limitations of the extraction equipment. Utility Model Content

[0005] This invention aims to solve the technical problem of low extraction efficiency in the process of extracting red pine nut oil in the laboratory due to the structural limitations of the extraction equipment itself. Therefore, a red pine nut oil extraction device is proposed, which includes a collection tank, an extraction tank, a filter cylinder, a storage tank, a condenser, an evaporation tube, a siphon tube, a first condenser tube, a first valve, a second condenser tube, a second valve, a connecting pipe, and a third valve.

[0006] The collecting tank is installed at the bottom of the extraction device, and the condenser is installed at the top of the extraction device. The collecting tank is connected to the condenser through an evaporation tube. The storage tank is installed below the condenser, and the condenser is connected to the storage tank through a first condenser tube with a first valve installed on it. The extraction tank is installed below the storage tank, and the condenser is connected to the extraction tank through a second condenser tube with a second valve installed on it. The storage tank is connected to the extraction tank through a connecting pipe. The extraction tank has a filter cartridge inside, and a siphon tube is installed at the bottom of the extraction tank. The output end of the siphon tube is connected to the collecting tank.

[0007] As another improvement of this utility model, it also includes a stirring tank and a drive motor. The stirring tank is installed inside the extraction tank, and the drive motor is installed on the outer side of the top of the extraction tank. The top of the stirring tank is connected to the drive motor through a transmission shaft, and the tank wall of the stirring tank is set on the outer side of the filter cylinder.

[0008] As another improvement of this utility model, the inner side of the mixing tank is evenly provided with multiple protrusions.

[0009] As another improvement of this utility model, the extraction tank has an observation window on its wall, which is a glass window.

[0010] As another improvement of this utility model, the glass window is provided with a scale.

[0011] As another improvement of this utility model, it also includes a PLC controller, and the first valve, the second valve and the third valve are all solenoid valves, and the first valve, the second valve and the third valve are electrically connected to the PLC controller respectively.

[0012] As another improvement of this utility model, it also includes an electric heating jacket, which is fitted onto the outside of the collection tank.

[0013] As another improvement to this utility model, the electric heating mantle can be replaced with a water bath.

[0014] As another improvement of this utility model, a liquid outlet pipe is installed at the bottom of the collection tank, and a fourth valve is provided on the liquid outlet pipe.

[0015] As another improvement of this utility model, the siphon tube is made of glass.

[0016] The beneficial effects of this utility model are:

[0017] 1. The design includes a storage tank and a condenser. The condenser is connected to the storage tank via a first condenser pipe, and the storage tank is connected to the extraction tank via a connecting pipe. The condenser is also connected to the extraction tank via a second condenser pipe. The condenser improves the condensation efficiency of the evaporated gas in the collection tank. The storage tank can be pre-filled with extraction solvent. When the siphon pipe completes its siphon action, the valve controlling the storage tank is opened, pre-filling a portion of the extraction tank that is waiting to be filled, thus improving the extraction efficiency.

[0018] 2. By designing a stirring tank that is compatible with the storage tank and condenser, the extraction efficiency of red pine nut kernel oil in the extraction tank is improved. The extraction efficiency is further enhanced by accelerating the stirring in the extraction tank. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a red pine nut kernel oil extraction device according to the present invention.

[0020] Figure 2 This is a front view of the extraction tank. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Specific implementation method one: Combining Figure 1 This embodiment describes a red pine nut kernel oil extraction device, which includes a collection tank 1, an extraction tank 2, a filter cylinder 3, a storage tank 4, a condenser 5, an evaporation tube 6, a siphon tube 7, a first condenser tube 8, a first valve, a second condenser tube 9, a second valve, a connecting pipe 10, and a third valve.

[0023] The collecting tank 1 is installed at the bottom of the extraction device, and the condensing tank 5 is installed at the top of the extraction device. The collecting tank 1 is connected to the condensing tank 5 through the evaporation pipe 6. The storage tank 4 is installed below the condensing tank 5. The condensing tank 5 is connected to the storage tank 4 through the first condensing pipe 8. A first valve is installed on the first condensing pipe 8. The extraction tank 2 is installed below the storage tank 4. The condensing tank 5 is connected to the extraction tank 2 through the second condensing pipe 9. A second valve is installed on the second condensing pipe 9. The storage tank 4 is connected to the extraction tank 2 through the connecting pipe 10. A filter cylinder 3 is installed inside the extraction tank 2. A siphon pipe 7 is installed at the bottom of the extraction tank 2. The output end of the siphon pipe 7 is connected to the collecting tank 1.

[0024] The collection tank 1, extraction tank 2, storage tank 4, and condenser 5 are all made of stainless steel. The collection tank is pre-filled with extraction solvent, which is either n-hexane or petroleum ether. This extraction method offers extremely high efficiency, relatively low cost, mature technology, and good selectivity. Petroleum ether typically has a boiling range of 60-90℃, while n-hexane has a boiling point of 69℃. This means that subsequent solvent removal and recovery are very easy, energy consumption is low, and the low temperature helps protect heat-sensitive components in the oil. The entire system is explosion-proof and ensures that solvent residues in the product meet standards.

[0025] The solvent evaporates upon heating, and the vapor enters the condenser via the riser pipe on the side of the extraction tank. The vapor is condensed into a pure, low-temperature liquid stream, which flows into the storage tank 4 and the extraction tank 2, respectively. During the experiment, the first and second valves are manually opened or closed according to the flow rate, thereby controlling the extraction time and cycle. Preferably, the solvent in the storage tank is first injected into the extraction tank. The extraction tank is filled to half full, ideally with the solution level above the filter cartridge. Then, the solvent gradually accumulates in the extraction tube through the second condenser until the liquid level exceeds the highest point of the siphon tube. At this point, all the oil-rich solvent in the extraction tank, which has dissolved a large amount of pine nut oil, is instantly drawn back to the collection tank below by gravity through siphon action. The solvent returned to the collection tank is reheated, starting a new cycle of evaporation-condensation-soaking-siphon. After the extraction is completed, red pine nut oil can be obtained by evaporating the solution, preparing for the next experiment, such as measuring the oil content of red pine nuts.

[0026] The design includes a storage tank and a condenser. The condenser is connected to the storage tank via a first condenser pipe, and the storage tank is connected to the extraction tank via a connecting pipe. The condenser is also connected to the extraction tank via a second condenser pipe. The condenser improves the condensation efficiency of the evaporated gas in the collection tank. The storage tank can be pre-filled with extraction solvent. When the siphon tube completes its siphon action, the valve controlling the storage tank is opened, pre-filling a portion of the extraction tank that is waiting to be filled, thus improving the extraction efficiency.

[0027] Specific Implementation Method Two: Combining Figure 1 This embodiment differs from specific embodiment one in that it also includes a stirring tank 11 and a drive motor 12. The stirring tank 11 is installed inside the extraction tank 2, and the drive motor 12 is installed on the outer top of the extraction tank 2. The top of the stirring tank 11 is connected to the drive motor 12 via a transmission shaft, and the tank wall of the stirring tank 11 is located on the outer side of the filter cylinder 3. By designing the stirring tank to be compatible with the storage tank and condenser, the extraction efficiency of red pine nut kernel oil in the extraction tank is improved. The extraction efficiency is further enhanced by accelerating the stirring in the extraction tank. Other components and connections are the same as in specific embodiment one.

[0028] Specific implementation method three: Combining Figure 1 This embodiment differs from specific embodiment one in that the inner wall of the stirring tank 11 is uniformly provided with multiple protrusions 13. This design aims to improve stirring efficiency, thereby increasing extraction efficiency. Other components and connections are the same as in specific embodiment one or two.

[0029] Specific implementation method four: Combination Figure 1This embodiment differs from specific embodiment one in that it also includes a PLC controller. The first, second, and third valves are all solenoid valves. The drive motor 12, the first valve, the second valve, and the third valve are electrically connected to the PLC controller. This design aims to improve the automation level of the entire extraction equipment, reduce manual intervention, and allow the entire device to be used in small-scale factory production, thus improving its practicality. Other components and connection methods are the same as in any one of specific embodiments one to three.

[0030] Specific Implementation Method Five: Combining Figure 1 and Figure 2 This embodiment differs from specific embodiment one in that the extraction vessel 2 has an observation window 14 on its wall, which is a glass window. This design facilitates observation, recording, and monitoring during the experiment. Other components and connections are the same as in any one of specific embodiments one through four.

[0031] Specific Implementation Method Six: Combination Figure 1 and Figure 2 This embodiment differs from specific embodiment one in that it has a scale of 15 on the glass window. This design facilitates observation, recording, and monitoring during the experiment. Other components and connections are the same as in any one of specific embodiments one through five.

[0032] Specific implementation method seven: Combination Figure 1 and Figure 2 This embodiment differs from specific embodiment one in that the outer side of the collection tank 1 is fitted with an electric heating jacket. This design avoids high-temperature heating with an open flame, ensuring stable experimental data. Other components and connection methods are the same as in any one of specific embodiments one through six.

[0033] Specific implementation method eight: Combination Figure 1 and Figure 2 This embodiment differs from specific embodiment one in that the heating mantle can be replaced with a water bath. This design avoids high-temperature heating with an open flame, ensuring stable experimental data. Other components and connection methods are the same as any one of specific embodiments one through seven.

[0034] Specific Implementation Method Nine: Combining Figure 1 and Figure 2 This embodiment differs from specific embodiment one in that a liquid outlet pipe is installed at the bottom of the collection tank 1, and a fourth valve is provided on the liquid outlet pipe. This design facilitates subsequent collection work. Other components and connection methods are the same as any one of specific embodiments one through eight.

[0035] Specific Implementation Method Ten: Combining Figure 1 and Figure 2 This embodiment differs from specific embodiment one in that the siphon tube 7 is made of glass. Other components and connection methods are the same as any one of specific embodiments one through nine.

[0036] Combination Figure 1 and Figure 2 Explanation of the working principle of this utility model:

[0037] The solvent evaporates upon heating, and the vapor enters the condenser via a riser pipe on the side of the extraction tank. The vapor is condensed into a pure, low-temperature liquid stream, which flows into the storage tank and the extraction tank respectively. During the experiment, the first and second valves are manually opened or closed according to the flow rate, thereby controlling the extraction time and cycle. Preferably, the solvent in the storage tank is first injected into the extraction tank. The extraction tank is filled to half capacity, ideally with the solution level above the filter cartridge. Simultaneously, the drive motor is started according to experimental requirements to improve extraction efficiency. The solvent gradually accumulates in the extraction tube through the second condenser until the liquid level exceeds the highest point of the siphon tube. At this point, the oil-rich solvent is drawn back into the collection tank below by gravity through siphon action. The solvent returned to the collection tank is reheated, starting a new cycle of evaporation-condensation-soaking-siphon. After the extraction is completed, red pine nut oil can be obtained by evaporating the solution, preparing for the next experimental step, such as measuring the oil content of red pine nuts.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for extracting red pine nut oil, characterized in that... It includes a collection tank (1), an extraction tank (2), a filter cartridge (3), a storage tank (4), a condenser (5), an evaporation tube (6), a siphon tube (7), a first condenser tube (8), a first valve, a second condenser tube (9), a second valve, a connecting pipe (10), and a third valve; The collection tank (1) is installed at the bottom of the extraction device, the condenser (5) is installed at the top of the extraction device, the collection tank (1) is connected to the condenser (5) through the evaporation tube (6), the storage tank (4) is installed on the lower side of the condenser (5), the condenser (5) is connected to the storage tank (4) through the first condenser tube (8), the first condenser tube (8) is equipped with a first valve, the extraction tank (2) is installed on the lower side of the storage tank (4), the condenser (5) is connected to the extraction tank (2) through the second condenser tube (9), the second condenser tube (9) is equipped with a second valve, the storage tank (4) is connected to the extraction tank (2) through the connecting pipe (10), the extraction tank (2) is equipped with a filter cylinder (3), the bottom of the extraction tank (2) is equipped with a siphon tube (7), the output end of the siphon tube (7) is connected to the collection tank (1).

2. The red pine nut kernel oil extraction device according to claim 1, characterized in that... It also includes a stirring tank (11) and a drive motor (12). The stirring tank (11) is installed inside the extraction tank (2), and the drive motor (12) is installed on the top outside of the extraction tank (2). The top of the stirring tank (11) is connected to the drive motor (12) through a transmission shaft, and the tank wall of the stirring tank (11) is set on the outside of the filter cylinder (3).

3. The red pine nut kernel oil extraction device according to claim 2, characterized in that, Multiple protrusions (13) are evenly arranged on the inner side of the mixing tank (11).

4. The red pine nut kernel oil extraction device according to claim 2, characterized in that... It also includes a PLC controller, and the first valve, the second valve and the third valve are all solenoid valves. The drive motor (12), the first valve, the second valve and the third valve are electrically connected to the PLC controller respectively.

5. The red pine nut kernel oil extraction device according to claim 1, characterized in that, The extraction tank (2) has an observation window (14) on its wall, which is a glass window.

6. The red pine nut kernel oil extraction apparatus according to claim 5, characterized in that, The glass window is marked with graduations (15).

7. The red pine nut kernel oil extraction device according to claim 1, characterized in that... It also includes an electric heating mantle, which is fitted on the outside of the collection tank (1).

8. The red pine nut kernel oil extraction apparatus according to claim 7, characterized in that, The electric heating mantle can be replaced with a water bath.

9. The red pine nut kernel oil extraction device according to claim 1, characterized in that, The bottom of the collection tank (1) is equipped with a liquid outlet pipe, and a fourth valve is installed on the liquid outlet pipe.

10. The red pine nut kernel oil extraction apparatus according to claim 1, characterized in that, The siphon tube (7) is made of glass.

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