Evaporating device for extracting natural ferulic acid

Abstract

The utility model discloses an evaporating device for extracting natural ferulic acid belongs to ferulic acid extraction equipment technical field. The device includes evaporating jar and condensing jar, and the lateral wall and bottom of evaporating jar are provided with feeding hopper and discharge gate respectively, and the inside of evaporating jar is provided with stirring device, and is equipped with electric heating element on stirring device, the upper portion and lower portion of condensing jar are provided with cooling water inlet and cooling water outlet respectively, and the inside of condensing jar is equipped with spiral pipe, and the upper portion of spiral pipe is connected with the top of evaporating jar through pipeline, and the lower end of spiral pipe is provided with liquid outlet. The utility model discloses a condensing jar is arranged, and the cooling water is passed in the condensing jar, and the steam in the evaporating jar is introduced into the spiral pipe in the condensing jar, and is fully exchanged with the cooling water, and it is helpful to reduce the steam temperature, and makes steam more easily condensed into liquid.

Description

Technical Field

[0001] This utility model belongs to the technical field of ferulic acid extraction equipment, specifically an evaporation device for extracting natural ferulic acid. Background Technology

[0002] Natural ferulic acid is a naturally occurring phenolic acid, chemically known as 4-hydroxy-3-methoxycinnamic acid. It belongs to the hydroxycinnamic acid derivative family and is a key linking molecule in the structural components of plant cell walls, such as lignin, pectin, and cellulose. Natural ferulic acid possesses potent antioxidant activity and is widely used in the pharmaceutical, health product, cosmetic, and food industries. It effectively scavenge free radicals (such as superoxide anions and hydroxyl radicals), inhibits lipid peroxidation, and protects cell membranes and DNA from oxidative damage. Its antioxidant capacity is superior to that of vitamin C and vitamin E. Simultaneously, ferulic acid can alleviate inflammatory responses by inhibiting inflammatory signaling pathways such as NF-κB and reducing the production of pro-inflammatory factors (such as TNF-α and IL-6).

[0003] When separating the active ingredient oryzanol from fatty acid / oil mixtures rich in oryzanol for the production of natural ferulic acid, an evaporation device is needed to initially separate the volatile fatty acids from the non-volatile components (such as oryzanol, rice bran oil, etc.) in the raw materials. For example, Chinese utility model patent CN213643137U discloses an evaporation device for extracting ferulic acid, including a tank body with an evaporation structure inside. The evaporation structure mainly includes: a feed inlet, a sealing plug, a liquid guiding section, a discharge outlet, a flip-top cover, a sliding plate, and a heating section. The feed inlet is located on the upper surface of the tank body, the sealing plug is sealed inside the feed inlet, the liquid guiding section is located at the upper end of the tank body, the discharge outlet is located on the side surface of the tank body, the flip-top cover is pinned to the side surface of the tank body and located at the discharge outlet, the sliding plate is located on the side surface of the tank body and located below the discharge outlet, and the heating section is located inside the tank body. This device heats and stirs simultaneously, accelerating the heating rate of the raw materials and quickly collecting and discharging the evaporated liquid. It has high processing efficiency and facilitates the removal of processed raw materials.

[0004] However, the above-mentioned device still has some areas for improvement. For example, the liquid guiding part for collecting the distillate is located inside the tank. During the evaporation process, the temperature inside the tank is high, which results in a high surface temperature of the top cover and side plates of the liquid guiding part, making it difficult for the distillate to condense and limiting the collection efficiency. Utility Model Content

[0005] This invention proposes an evaporation device for extracting natural ferulic acid, aiming to solve the problems of difficult condensation of distillate and limited collection efficiency in existing ferulic acid evaporation devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An evaporation apparatus for extracting natural ferulic acid includes an evaporator and a condenser. The side wall and bottom of the evaporator are respectively provided with a feed hopper and a discharge port. The evaporator is equipped with a stirring device inside and an electric heating element is provided on the stirring device. The condenser is provided with a cooling water inlet and a cooling water outlet at the top and bottom, respectively. The interior of the condenser is provided with a spiral tube. The upper part of the spiral tube is connected to the top of the evaporator through a pipe, and the lower end of the spiral tube is provided with a liquid outlet.

[0007] Preferably, the upper and lower parts of the spiral tube penetrate the condenser and are sealed to the condenser through a sealing ring. A collection tank is provided below the condenser, the lower end of the spiral tube extends into the collection tank, and a liquid outlet pipe is provided at the bottom of the collection tank. A valve is connected to the end of the liquid outlet pipe, and an exhaust pipe is connected to the upper part of the condenser.

[0008] Preferably, the stirring device includes a stirring shaft and a motor. The stirring shaft is connected to stirring blades, and the stirring blades are provided with electric heating elements. The lower end of the stirring shaft extends out of the bottom wall of the evaporator and is rotatably connected to the bottom wall of the evaporator through a sealed bearing. One end of the stirring shaft extending out of the bottom wall of the evaporator is connected to the motor through a speed reducer.

[0009] Preferably, the stirring blade has multiple through holes evenly distributed on it.

[0010] Preferably, a fan is connected to the upper part of the stirring shaft, and the fan blows air from bottom to top.

[0011] Preferably, the electric heating element is a heating wire, which is S-shaped and wrapped around the through hole and encapsulated inside the stirring blade.

[0012] Preferably, an insulating sleeve is provided at one end of the stirring shaft extending from the bottom wall of the evaporator, and at least two metal rings are provided on the insulating sleeve. The metal rings are connected to the electric heating element through wires. A protective shell is installed between the reducer and the bottom wall of the evaporator. The insulating sleeve and the metal rings are both located inside the protective shell. The side wall of the protective shell is equipped with brushes in the same number as the metal rings 23. The contacts of the brushes are in contact with the outer wall of the metal rings, and the terminals of the brushes are connected to the mains power supply.

[0013] Preferably, a level gauge is provided on the side wall of the evaporator.

[0014] Preferably, the top of the feed hopper is hinged with a sealing cover.

[0015] Beneficial effects: Compared with the prior art, the present invention can achieve at least the following technical effects: 1. This utility model is equipped with a condenser and cooling water is introduced into the condenser. The steam in the evaporator is introduced into the spiral tube in the condenser and fully exchanges heat with the cooling water, which helps to reduce the steam temperature and make the steam easier to condense into liquid.

[0016] 2. This utility model installs the electric heating element on the stirring blade, integrating the stirring device and the heating device into one unit, which helps the raw materials to be heated evenly, while simplifying the device structure.

[0017] 3. This utility model has a fan installed on the upper part of the stirring shaft, which helps the steam in the evaporator to enter the condenser. At the same time, a negative pressure zone is formed below the fan, which helps the raw materials to evaporate quickly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the condenser tank structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the stirring shaft and stirring blade mechanism of this utility model.

[0021] Figure 4 This is a cross-sectional structural diagram of the stirring blade of this utility model.

[0022] Figure 5 This utility model Figure 1 Enlarged view of point A in the middle.

[0023] In the diagram: 1. Evaporator; 2. Stirring blades; 3. Heating wire; 4. Feed hopper; 5. Sealing cover; 6. Fan; 7. Pipe; 8. Cooling water outlet; 9. Sealing ring; 10. Condenser; 11. Spiral tube; 12. Exhaust pipe; 13. Cooling water inlet; 14. Collection tank; 15. Level gauge; 16. Stirring shaft; 17. Reducer; 18. Motor; 19. Discharge port; 20. Protective shell; 21. Liquid outlet pipe; 22. Insulating sleeve; 23. Metal ring; 24. Brush. Detailed Implementation

[0024] The present invention will be further explained below with reference to specific implementation examples.

[0025] Please see Figure 1-5 This utility model proposes an evaporation device for extracting natural ferulic acid, including an evaporation tank 1 and a condensation tank 10. The side wall and bottom of the evaporation tank 1 are respectively provided with a feed hopper 4 and a discharge port 19. The evaporation tank 1 is provided with a stirring device, and the stirring device is provided with an electric heating element. The condenser 10 is provided with a cooling water inlet 13 and a cooling water outlet 8 at its upper and lower parts, respectively. The condenser 10 is provided with a spiral tube 11 inside. The upper part of the spiral tube 11 is connected to the top of the evaporator 1 through a pipe 7, and the lower end of the spiral tube 11 is provided with a liquid outlet.

[0026] like Figure 1 As shown, the raw material is added into the evaporator 1 through the feed hopper 4. The stirring device heats the raw material through the electric heating element set on it, and at the same time stirs the raw material by its own rotation, so that the raw material is fully heated. The steam generated by the moisture and volatile components in the raw material enters the condenser 10 through the pipe 7. like Figure 2 As shown, cooling water enters the condenser 10 through the cooling water inlet 13 at the bottom of the condenser 10 and flows out of the condenser 10 through the cooling water outlet 8 at the top of the condenser 10. After the steam enters the spiral tube 11, it exchanges heat with the cooling water, thereby lowering the steam temperature and causing it to condense. The condensed liquid flows out through the liquid outlet at the bottom of the spiral tube 11.

[0027] Among them, the pipe 7 has an inverted U-shaped structure, so the steam flows from top to bottom in the condenser 10, while the condensate flows from bottom to top in the condenser 10. At the same time, the spiral structure of the spiral tube 11 increases the heat exchange area between the steam and the cooling water. Through the above settings, sufficient heat exchange between the steam and the cooling water is ensured, which helps the steam to condense quickly.

[0028] In this embodiment, the upper and lower parts of the spiral tube 11 penetrate the condenser 10 and are sealed to the condenser 10 through the sealing ring 9. A collection tank 14 is provided below the condenser 10, the lower end of the spiral tube 11 extends into the collection tank 14, and a liquid outlet pipe 21 is provided at the bottom of the collection tank 14. A valve is connected to the end of the liquid outlet pipe 21, and an exhaust pipe 12 is connected to the upper part of the condenser 10.

[0029] like Figure 2 As shown, the condensed fraction in the spiral tube 11 flows into the collection tank 14, which facilitates the collection and recovery of the fraction. The collection tank 14 can be set as a transparent container. When the liquid fraction collected in the collection tank 14 reaches a certain volume, the liquid fraction is recovered through the liquid outlet pipe 21.

[0030] In this embodiment, the stirring device is further configured such that the stirring device includes a stirring shaft 16 and a motor 18. The stirring shaft 16 is connected to a stirring blade 2, and the stirring blade 2 is provided with an electric heating element. The lower end of the stirring shaft 16 extends out of the bottom wall of the evaporator 1 and is rotatably connected to the bottom wall of the evaporator 1 through a sealed bearing. One end of the stirring shaft 16 extending out of the bottom wall of the evaporator 1 is connected to the motor 18 through a reducer 17.

[0031] like Figure 3 As shown, the stirring blades 2 are centrally symmetrically arranged on the stirring shaft. The stirring blades 2 are rectangular in structure and the number is set to 3 to 4. The motor 18 drives the stirring shaft 16 to rotate through the reducer 17, so that the stirring blades 2 can fully stir the raw materials. At the same time, the electric heating element set on the stirring blades 2 heats the raw materials.

[0032] In this embodiment, the stirring blade 2 is further configured such that a plurality of through holes 201 are evenly distributed on the blade.

[0033] By setting multiple through holes on the stirring blade 2, it is helpful for the relative flow of raw materials during the stirring process, and further improves the uniformity of heating of the raw materials.

[0034] In this embodiment, the upper part of the stirring shaft 16 is connected to a fan 6, and the air delivery direction of the fan 6 is from bottom to top.

[0035] By setting up fan 6, the stirring shaft 16 drives fan 6 to rotate, which helps the steam in evaporator 1 to enter condenser 10, and forms a negative pressure zone under fan 6, which helps the raw materials evaporate quickly.

[0036] In this embodiment, the electric heating element is a heating wire 3, which is S-shaped and wrapped around the through hole 201 and encapsulated in the stirring blade 2.

[0037] In this embodiment, an electric heating wire (such as a nickel-chromium alloy resistance wire) is selected as the electric heating element. The heat generated by the electric heating wire after being energized is transferred to the raw materials in the evaporator 1 through the stirring blades made of thermally conductive material (such as thermally conductive silicone).

[0038] In this embodiment, the stirring shaft 16 is further provided with an insulating sleeve 22 at one end extending from the bottom wall of the evaporator 1. At least two metal rings 23 are provided on the insulating sleeve 22. The metal rings 23 are connected to the electric heating element through wires. A protective shell 20 is installed between the reducer 17 and the bottom wall of the evaporator 1. The insulating sleeve 22 and the metal rings 23 are both located inside the protective shell 20. The side wall of the protective shell 20 is provided with brushes 24 in the same number as the metal rings 23. The contacts of the brushes 24 are in contact with the outer wall of the metal rings 23. The terminals of the brushes 24 are connected to the mains power supply.

[0039] Since the electric heating element needs to rotate together with the stirring blade 2 in this embodiment, an insulating sleeve 22 and a metal ring 23 are provided on the stirring shaft to facilitate power supply to the electric heating element. When the stirring shaft 16 rotates, the brush 24 slides in contact with the metal ring and supplies power to the electric heating element through the metal ring 23. The electric heating element located on each stirring blade 2 is connected in parallel with the metal ring 23. The number of metal rings 23 can be set as needed to 2 (connected to the live wire and neutral wire of AC220V power supply), 3 (connected to the live wire, neutral wire and ground wire of AC220V power supply), or 4 (connected to AC380V three-phase power supply).

[0040] In this embodiment, a level gauge 15 is further provided on the side wall of the evaporator 1.

[0041] The level gauge 15 allows staff to easily observe the raw material level in the evaporator 1 and add raw materials to the evaporator 1 according to the indication of the level gauge 15.

[0042] In this embodiment, the top of the feed hopper 4 is hinged with a sealing cover 5.

[0043] By installing a sealing cover above the feed hopper 4, steam can be prevented from escaping from the feed hopper 4 during the power generation process.

[0044] In the description of this utility model, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0045] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An evaporation apparatus for extracting natural ferulic acid, characterized in that, It includes an evaporator (1) and a condenser (10). The side wall and bottom of the evaporator (1) are respectively provided with a feed hopper (4) and a discharge port (19). The evaporator (1) is equipped with a stirring device inside, and the stirring device is equipped with an electric heating element. The upper and lower parts of the condenser (10) are respectively provided with a cooling water inlet (13) and a cooling water outlet (8). The interior of the condenser (10) is provided with a spiral tube (11). The upper part of the spiral tube (11) is connected to the top of the evaporator (1) through a pipe (7). The lower end of the spiral tube (11) is provided with a liquid outlet.

2. The evaporation apparatus for extracting natural ferulic acid according to claim 1, characterized in that, The upper and lower parts of the spiral tube (11) pass through the condenser (10) and are sealed to the condenser (10) by a sealing ring (9). A collection tank (14) is provided below the condenser (10). The lower end of the spiral tube (11) extends into the collection tank (14). A liquid outlet pipe (21) is provided at the bottom of the collection tank (14). A valve is connected to the end of the liquid outlet pipe (21). An exhaust pipe (12) is connected to the upper part of the condenser (10).

3. The evaporation apparatus for extracting natural ferulic acid according to claim 1, characterized in that, The stirring device includes a stirring shaft (16) and a motor (18). The stirring shaft (16) is connected to a stirring blade (2), and the stirring blade (2) is provided with an electric heating element. The lower end of the stirring shaft (16) extends out of the bottom wall of the evaporator (1) and is rotatably connected to the bottom wall of the evaporator (1) through a sealed bearing. One end of the stirring shaft (16) extending out of the bottom wall of the evaporator (1) is connected to the motor (18) through a reducer (17).

4. An evaporation apparatus for extracting natural ferulic acid according to claim 3, characterized in that, The stirring blade (2) has multiple through holes (201) evenly distributed on it.

5. An evaporation apparatus for extracting natural ferulic acid according to claim 3, characterized in that, A fan (6) is connected to the upper part of the stirring shaft (16), and the air delivery direction of the fan (6) is from bottom to top.

6. An evaporation apparatus for extracting natural ferulic acid according to claim 4, characterized in that, The electric heating element is a heating wire (3), which is S-shaped and wrapped around the through hole (201) and encapsulated in the stirring blade (2).

7. An evaporation apparatus for extracting natural ferulic acid according to any one of claims 3 to 6, characterized in that, An insulating sleeve (22) is provided at one end of the stirring shaft (16) extending out of the bottom wall of the evaporator (1). At least two metal rings (23) are provided on the insulating sleeve (22). The metal rings (23) are connected to the electric heating element by wires. A protective shell (20) is installed between the reducer (17) and the bottom wall of the evaporator (1). The insulating sleeve (22) and the metal rings (23) are both located inside the protective shell (20). The side wall of the protective shell (20) is equipped with brushes (24) in the same number as the metal rings (23). The contacts of the brushes (24) are in contact with the outer wall of the metal rings (23). The terminals of the brushes (24) are connected to the mains power supply.

8. An evaporation apparatus for extracting natural ferulic acid according to claim 1, characterized in that, A level gauge (15) is installed on the side wall of the evaporator (1).

9. An evaporation apparatus for extracting natural ferulic acid according to claim 1, characterized in that, The top of the feed hopper (4) is hinged with a sealing cover (5).

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