Curcumin extraction with turmeric powder crushing device with cooling function

Abstract

The application discloses a turmeric crushing device with a cooling function for curcumin extraction, and belongs to the technical field of turmeric crushing devices.The turmeric crushing device with the cooling function for the curcumin extraction comprises a tank body, a cooling jacket is mounted on the surface of the tank body, and a crushing assembly is mounted on the surface of the tank body; the crushing assembly comprises a transmission shaft, crushing knives, a gear and a blocking block; the transmission shaft is rotatably installed in the inner cavity of the tank body, and the crushing knives are symmetrically rotatably installed on the side of the transmission shaft; the crushing assembly is arranged; the first electric telescopic rod drives the pull rod and the blocking block to move downwards, drives the two crushing knives to rotate towards each other, realizes online adjustment of the angle of the crushing knives, and the crushing knives are horizontal in the initial crushing stage, high-speed cutting with a small contact area, high coarse crushing efficiency and small motor load; the crushing knives are inclined in the later crushing stage, multi-angle fine crushing and rubbing with a large contact area, and the cell wall breaking rate is high. Through stage-by-stage crushing, the coarse crushing efficiency and the fine crushing quality are considered, the crushing particle size distribution is narrow, and the uniformity is good.

Description

Technical Field

[0001] This invention relates to the technical field of turmeric pulverizing devices, and in particular to a turmeric pulverizing device for curcumin extraction with a built-in cooling function. Background Technology

[0002] Curcumin is a diketone-based natural active ingredient extracted from the rhizome of turmeric, a plant in the ginger family. It has various pharmacological activities such as anti-oxidation, anti-inflammation, lipid-lowering, and anti-tumor effects, and has wide application value in the fields of food, medicine, and cosmetics. The content of curcumin in turmeric rhizomes is usually 3% to 6%. Raw material crushing is the first and most critical pretreatment step, and the crushing quality directly affects the subsequent extraction efficiency, curcumin yield, and product purity.

[0003] In existing technologies, turmeric is typically extracted by directly pulping and crushing fresh turmeric rhizomes with water. However, the blades of existing crushing equipment are usually mounted on the drive shaft at a fixed angle. Throughout the crushing process, the contact area and shearing method between the blades and the material remain unchanged. In the initial stage of crushing, the material is in large lumps, requiring the blades to cut efficiently with a small contact area. However, fixed-angle blades often have an excessively large contact area, resulting in low cutting efficiency and severe frictional heat generation. In the later stage of crushing, the material has been initially broken down, requiring the blades to crush and rub at multiple angles with a larger contact area. However, fixed-angle blades cannot meet this requirement, resulting in a wide particle size distribution and insufficient cell wall disruption. Summary of the Invention

[0004] The purpose of this invention is to provide a curcumin pulverizing device for curcumin extraction with a built-in cooling function, which solves the problem that the blades of existing pulverizing equipment are usually installed on the drive shaft at a fixed angle. The contact area and shearing mode between the blades and the material remain unchanged throughout the pulverizing process, resulting in a wide particle size distribution and insufficient cell wall disruption.

[0005] To achieve the above objectives, the present invention provides a curcumin pulverizing device for curcumin extraction with a built-in cooling function, comprising a tank body, a cooling jacket installed on the surface of the tank body, and a pulverizing component installed on the surface of the tank body for pulverizing curcumin, the pulverizing component comprising: A drive shaft, which is rotatably mounted inside the tank cavity; A shredder is symmetrically and rotatably mounted on the side of a drive shaft, and a rotating shaft connects the shredder to the drive shaft; The gear is fixedly mounted on one end of the rotating shaft; A sealing block is slidably installed in the inner cavity of the transmission shaft. The bottom of the sealing block is symmetrically equipped with toothed plates, and the two toothed plates mesh with gears on both sides respectively.

[0006] Preferably, a scraper is installed at the bottom of the drive shaft to prevent turmeric starch from settling, and a pull rod is fixedly connected to the surface of the sealing block.

[0007] Preferably, a slider is fixedly installed on the surface of the pull rod, a push ring is fixedly installed on the surface of the slider, a bracket is fixedly installed on the surface of the tank, a motor is installed on the surface of the bracket, and the output end of the motor is connected to the drive shaft.

[0008] Preferably, a drive frame is slidably installed in the bracket, the drive frame is sleeved on the surface of the push ring for pushing the pull rod to move, a slide rod is fixedly installed on the surface of the drive frame, the slide rod is slidably connected to the bracket, and a first electric telescopic rod is fixedly installed on the surface of the bracket, the telescopic end of the first electric telescopic rod is fixedly connected to the drive frame.

[0009] Preferably, the top of the tank is equipped with a feeding hopper for adding turmeric, the bottom of the tank is equipped with a discharging hopper, the jacket is used to introduce cooling water for primary cooling of the tank, and the side of the tank is equipped with support legs.

[0010] Preferably, a secondary cooling assembly is installed on the surface of the tank for secondary cooling of the turmeric. The secondary cooling assembly includes nozzles and an annular cavity. The nozzles are symmetrically opened on the side of the drive shaft and are inclined. An annular cavity is opened in the inner cavity of the drive shaft, and the nozzles are in communication with the annular cavity.

[0011] Preferably, the drive shaft also has an air supply chamber, the sealing block is slidably installed in the air supply chamber, an elliptical hole is provided between the air supply chamber and the annular cavity, the pull rod is hollow, and a first through hole is provided on the side of the pull rod, the first through hole being connected to the air supply chamber.

[0012] Preferably, the inner cavity of the drive shaft is further provided with a cavity, a ring is rotatably mounted on the surface of the drive shaft, a second through hole is provided between the ring and the cavity, a nitrogen tank is installed on the side of the tank body, and a gas pipe is connected between the nitrogen tank and the ring.

[0013] Preferably, the tank is provided with an enzyme spraying assembly for spraying enzyme solution into the turmeric powder. The enzyme spraying assembly includes a ring pipe and a nozzle. The ring pipe is installed in the inner cavity of the tank, and several nozzles are installed on the side of the ring pipe for spraying the enzyme solution onto the surface of the turmeric powder. An enzyme container is installed on the surface of the tank for holding the enzyme solution.

[0014] Preferably, a one-way inlet valve is installed on the side of the enzyme tank, and a piston is slidably installed in the inner cavity of the enzyme tank for injecting the enzyme solution in the enzyme tank into the ring tube. A second electric telescopic rod is installed on the surface of the enzyme tank, and the telescopic end of the second electric telescopic rod is fixedly connected to the piston. A contact switch is installed on the side of the support, and the contact switch is electrically connected to the second electric telescopic rod for controlling the movement of the second electric telescopic rod.

[0015] The advantages and positive effects of the curcumin pulverizing device with built-in cooling function for curcumin extraction described in this invention are as follows: 1. This invention, through the setting of a crushing component, uses a first electric telescopic rod to drive the pull rod and sealing block downwards. The meshing transmission between the toothed plate and gears drives the crushing blades on both sides to rotate in opposite directions, achieving online adjustment of the crushing blade angle. In the initial crushing stage, the crushing blades are horizontal, using a small contact area for high-speed cutting, resulting in high coarse crushing efficiency and low motor load. In the later stage of crushing, the crushing blades are tilted, using a large contact area for multi-angle fine crushing and rubbing, resulting in a high cell wall breakage rate. Through staged crushing, both coarse crushing efficiency and fine crushing quality are balanced, resulting in a narrow particle size distribution and good uniformity.

[0016] 2. This invention uses a cooling jacket for primary cooling and a secondary cooling assembly for targeted secondary cooling. The blocking block serves as both a transmission component for adjusting the angle of the crushing blade and a control valve for the nitrogen passage: when the crushing blade is horizontal, the blocking block completely blocks the elliptical hole, preventing nitrogen flow; as the crushing blade tilt angle increases, the blocking block moves downward synchronously, increasing the opening of the elliptical hole and the nitrogen flow rate, thus achieving a mechanical adaptive negative feedback linkage between the crushing blade tilt angle, heat generation, and nitrogen cooling capacity; low-temperature nitrogen is directly injected into the slurry from the inclined nozzle on the side of the transmission shaft, directly contacting the slurry for heat exchange, resulting in a cooling efficiency far exceeding that of indirect cooling via the jacket. This allows the temperature to be controlled below 40℃ throughout the crushing process, effectively inhibiting the thermal and oxidative degradation of curcumin.

[0017] 3. This invention integrates an enzyme spraying component, which is linked to the angle adjustment of the crushing blade via a contact switch: when the drive frame moves down to the point where the crushing blade enters the inclined fine crushing stage, it automatically touches the contact switch, triggering the second electric telescopic rod to push the piston to force the enzyme out. The enzyme is then evenly sprayed onto the surface of the slurry through the ring pipe and nozzle. The timing of enzyme addition is precisely matched with the crushing stage, adding the enzyme when the cell wall has been initially broken. This allows the enzyme solution to effectively contact the substrate, avoiding enzyme waste and enzyme shearing inactivation caused by adding enzyme in the early stages of crushing. Crushing and enzymatic hydrolysis are completed in the same tank, eliminating the need for material transfer. This simplifies the process, reduces equipment investment, shortens the production cycle, and avoids material loss and contamination risks during material transfer.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1A frontal perspective view provided for an embodiment of the present invention; Figure 2 A rear-view perspective view provided for an embodiment of the present invention; Figure 3 A front sectional view provided for an embodiment of the present invention; Figure 4 A cross-sectional view of the drive shaft provided for an embodiment of the present invention; Figure 5 Provided for the embodiments of the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 Provided for the embodiments of the present invention Figure 4 Enlarged view at point B in the middle; Figure 7 A perspective view of the pull rod provided for an embodiment of the present invention; Figure 8 A perspective view of the bracket provided for an embodiment of the present invention; Figure 9 A cross-sectional view of the drive shaft provided for an embodiment of the present invention; Figure 10 A cross-sectional view of the enzyme tank provided for an embodiment of the present invention.

[0020] Figure Labels 1. Tank body; 2. Feed hopper; 3. Discharge hopper; 4. Jacket; 5. Support leg; 6. Crushing assembly; 601. Drive shaft; 602. Crushing blade; 603. Scraper; 604. Rotating shaft; 605. Gear; 606. Tie rod; 607. Sealing block; 608. Toothed plate; 609. Sliding block; 610. Push ring; 611. Bracket; 612. Motor; 613. Drive frame; 614. Slide rod; 615. First electric telescopic... 7. Rod; 8. Secondary cooling assembly; 9. Nozzle; 10. Annular cavity; 11. Elliptical hole; 12. Air supply cavity; 13. First through hole; 14. Cavity; 15. Second through hole; 16. Ring sleeve; 17. Nitrogen tank; 18. Enzyme spraying assembly; 19. Ring pipe; 20. Nozzle; 30. Enzyme tank; 41. One-way liquid inlet valve; 52. Piston; 63. Second electric telescopic rod; 74. Contact switch. Detailed Implementation

[0021] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention 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 the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] Reference Figures 1-10 As shown, the present invention provides a technical solution: a curcumin pulverizing device for curcumin extraction with a built-in cooling function, comprising a tank 1, the tank 1 being a vertical cylindrical structure made of 304 stainless steel, with a polished inner wall and a surface roughness Ra≤0.8μm to reduce the adhesion of curcumin and starch; a feeding hopper 2 is installed at the top of the tank 1 for feeding curcumin; a discharging hopper 3 is installed at the bottom of the tank 1; a cooling jacket 4 is installed on the surface of the tank 1, the jacket 4 being used to introduce cooling water; the cooling jacket 4 has a cooling water inlet at the bottom and a cooling water outlet at the top, with cooling water entering from the bottom and flowing out from the top, counter-current heat exchange to improve cooling efficiency; a spiral guide plate is provided inside the cooling jacket 4 to allow cooling water to flow along the spiral channel, avoiding short circuits and dead zones, and improving heat exchange uniformity; the cooling jacket 4 is used to introduce cooling water at 5-15℃ for primary cooling of the tank 1, maintaining the tank 1 wall temperature at a low level; and support legs 5 are installed on the side of the tank 1.

[0025] Reference Figures 1-10As shown, a pulverizing assembly 6 is installed on the surface of the tank 1 for pulverizing turmeric. The pulverizing assembly 6 includes a drive shaft 601, a pulverizing blade 602, a gear 605, and a sealing block 607. The drive shaft 601 is rotatably installed inside the tank 1, and the pulverizing blade 602 is symmetrically rotatably installed on the side of the drive shaft 601. The pulverizing blade 602 has a rectangular plate structure, is made of 304 stainless steel or hard alloy, and has sharp edges on the outer and lower edges for cutting and rubbing turmeric. A scraper 603 is installed at the bottom of the drive shaft 601 to prevent starch from settling in the turmeric. A rotating shaft 604 connects the pulverizing blade 602 and the drive shaft 601. Wheel 605 is fixedly installed at one end of rotating shaft 604, and sealing block 607 is slidably installed in the inner cavity of transmission shaft 601. Toothed plates 608 are symmetrically installed at the bottom of sealing block 607. The two toothed plates 608 mesh with the gears 605 on both sides respectively. When sealing block 607 drives the two toothed plates 608 to move down, it can simultaneously drive the gears 605 on both sides to drive the crushing blades 602 on both sides to rotate in opposite directions. That is, the outer side of the left crushing blade 602 tilts downward and the outer side of the right crushing blade 602 tilts downward. The two crushing blades 602 form an inverted V-shape or V-shape to adjust the angle of the crushing blades 602. A pull rod 606 is fixedly connected to the surface of sealing block 607.

[0026] Reference Figures 1-10 As shown, a slider 609 is fixedly mounted on the surface of the pull rod 606, a push ring 610 is fixedly mounted on the surface of the slider 609, a bracket 611 is fixedly mounted on the surface of the tank 1, a motor 612 is mounted on the surface of the bracket 611, the output end of the motor 612 is connected to the transmission shaft 601, a drive frame 613 is slidably mounted in the bracket 611, the drive frame 613 is sleeved on the surface of the push ring 610, and is used to push the pull rod 606 to move, a slide rod 614 is fixedly mounted on the surface of the drive frame 613, the slide rod 614 is slidably connected to the bracket 611, and a first electric telescopic rod 615 is fixedly mounted on the surface of the bracket 611, the telescopic end of the first electric telescopic rod 615 is fixedly connected to the drive frame 613.

[0027] When in use, open the sealed cover of the feeding hopper 2, and put the washed fresh turmeric root and water into the tank 1 from the feeding hopper 2 at a material-to-liquid ratio of 1:1 to 1:5. Start the cooling water circulation of the cooling jacket 4, and start the motor 612 to drive the drive shaft 601 to rotate at a speed of 2000 to 3000 rpm. The drive shaft 601 drives the crushing blade 602 (which is in a horizontal state at this time) and the scraper 603 to rotate synchronously. The horizontal crushing blade 602 cuts the turmeric pieces at high speed with a small contact area, gradually crushing the turmeric pieces into small particles. At this stage, less heat is generated, and the cooling water of the cooling jacket 4 can control the temperature inside the tank below 30°C. The coarse crushing stage lasts for 5 to 10 minutes.

[0028] After coarse crushing, the first electric telescopic rod 615 is activated to drive the drive frame 613 to slide downward. The drive frame 613 drives the pull rod 606 to move downward through the push ring 610 and the slider 609. The pull rod 606 drives the sealing block 607 to slide downward in the air supply chamber 704. The two toothed plates 608 at the bottom of the sealing block 607 move downward synchronously, driving the gears 605 on both sides to rotate in opposite directions. Through the rotating shaft 604, the crushing blades 602 on both sides gradually tilt downward from the horizontal state. The angle between the crushing blades 602 and the horizontal plane gradually increases from 0° to 30° to 45°. As the tilt angle increases, the contact area between the crushing blades 602 and the material increases, and the material is finely crushed and rubbed from multiple angles, and the cell wall breaking rate gradually increases.

[0029] Reference Figures 1-10 As shown, a secondary cooling assembly 7 is installed on the surface of the tank 1 for secondary cooling of the turmeric. The secondary cooling assembly 7 includes nozzles 701 and an annular cavity 702. The nozzles 701 are symmetrically opened on the side of the drive shaft 601 and are evenly distributed along the circumference of the drive shaft 601. The nozzles 701 are inclined, that is, the axis of the nozzles 701 forms a certain angle with both the radial and axial directions of the drive shaft 601: the axial inclination angle is 30° to 60°, and it is inclined downwards to make nitrogen gas spray downwards, prolonging the residence time of bubbles in the slurry; the circumferential inclination angle is 3°. The angle between 0° and 60° is opposite to or at a certain angle to the rotation direction of the drive shaft 601, generating a turbulent effect. The inner cavity of the drive shaft 601 is provided with an annular cavity 702, and the nozzle 701 is connected to the annular cavity 702. The drive shaft 601 is also provided with an air supply cavity 704. The sealing block 607 is slidably installed in the air supply cavity 704. An elliptical hole 703 is provided between the air supply cavity 704 and the annular cavity 702. The pull rod 606 is hollow. The side of the pull rod 606 is provided with a first through hole 705, which is connected to the air supply cavity 704.

[0030] Reference Figures 1-10 As shown, the inner cavity of the drive shaft 601 is also provided with a cavity 706. A ring 708 is rotatably mounted on the surface of the drive shaft 601. A second through hole 707 is provided between the ring 708 and the cavity 706. A nitrogen tank 709 is installed on the side of the tank body 1. A gas pipe is connected between the nitrogen tank 709 and the ring 708. When the first electric telescopic rod 615 drives the push ring 610 to lower the pull rod 606 to adjust the angle of the crusher 602, the top of the pull rod 606 falls into the cavity 706, and nitrogen can be conveyed downward through the hollow part of the pull rod 606.

[0031] During use, as the pull rod 606 moves downward, nitrogen from the nitrogen tank 709 enters the hollow part of the pull rod 606 through the ring sleeve 708, and then enters the air supply chamber 704 through the first through hole 705. As the sealing block 607 continues to move downward, the edge of the sealing block 607 gradually opens the elliptical hole 703. The nitrogen in the air supply chamber 704 enters the annular cavity 702 through the elliptical hole 703, and finally is sprayed into the slurry at an angle from the spray hole 701. The greater the downward movement of the sealing block 607, the larger the opening of the elliptical hole 703, and the greater the nitrogen flow rate. The larger the inclination angle of the crushing blade 602, the more heat is generated, thus achieving adaptive cooling. The low-temperature nitrogen forms bubbles in the slurry and rises, directly exchanging heat with the slurry. At the same time, the inclined spray generates turbulence, breaking the stagnant layer on the blade surface, enhancing cooling and mixing.

[0032] Reference Figures 1-10 As shown, the tank 1 is equipped with an enzyme spraying assembly 8, which is used to spray enzyme solution into the turmeric powder. The enzyme spraying assembly 8 includes a ring pipe 801 and a nozzle 802. The ring pipe 801 is installed in the inner cavity of the tank 1, and several nozzles 802 are installed on the side of the ring pipe 801 for spraying the enzyme solution onto the surface of the turmeric powder. An enzyme tank 803 is installed on the surface of the tank 1 for holding the enzyme solution. The enzyme solution is a mixed solution of cellulase, pectinase, neutral protease, etc., prepared with a buffer solution of pH 4.5 to 5.5.

[0033] Reference Figures 1-10 As shown, a one-way inlet valve 804 is installed on the side of the enzyme tank 803, and a piston 805 is slidably installed inside the enzyme tank 803 for injecting the enzyme solution in the enzyme tank 803 into the ring pipe 801. A second electric telescopic rod 806 is installed on the surface of the enzyme tank 803, and the telescopic end of the second electric telescopic rod 806 is fixedly connected to the piston 805. A contact switch 807 is installed on the side of the bracket 611. The trigger position of the contact switch 807 corresponds to the downward movement position of the drive frame 613: when the drive frame 613 moves down to the set position, the tilt angle of the corresponding pulverizer 602 reaches 15° to 20°, that is, when it enters the fine crushing stage, the side or lower edge of the drive frame 613 touches the contact wheel or sensing surface of the contact switch 807, and the contact switch 807 is activated; the contact switch 807 is electrically connected to the second electric telescopic rod 806 for controlling the action of the second electric telescopic rod 806, starting the extension of the second electric telescopic rod 806, and pushing the piston 805 to spray the enzyme.

[0034] In use, when the drive frame 613 moves down to the set position, corresponding to an inclination angle of approximately 15° to 20° for the crusher 602, the side of the drive frame 613 touches the contact switch 807. The contact switch 807 sends an electrical signal to activate the second electric telescopic rod 806. The second electric telescopic rod 806 pushes the piston 805 to slide downward in the enzyme tank 803, discharging the enzyme from the enzyme tank 803. The enzyme then enters the ring pipe 801 through a pipeline, and is then evenly atomized and sprayed onto the surface of the slurry through several nozzles 802 on the ring pipe 801. At this time, the crusher 602 has entered the inclined fine crushing stage, and the cell walls have been initially broken. The enzyme solution can effectively contact the substrate. Under the turbulence of nitrogen and the stirring action of the blades, the enzyme solution is quickly dispersed throughout the slurry, making full contact with the broken plant tissue. This allows the cellulase to decompose the cell wall, the pectinase to decompose the middle cell layer, and the protease to decompose the protein and reduce viscosity, further improving the cell wall breakage rate and the slurry fluidity.

[0035] Therefore, the turmeric pulverizing device for curcumin extraction with a built-in cooling function described in this invention can achieve staged crushing with high pulverizing efficiency and uniform particle size.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A curcumin pulverizing device for curcumin extraction with built-in cooling function, comprising a tank (1), wherein a cooling jacket (4) is installed on the surface of the tank (1), characterized in that, The surface of the tank (1) is equipped with a crushing component (6) for crushing turmeric. The crushing component (6) includes: A drive shaft (601) is rotatably mounted inside the tank body (1); A crushing blade (602) is symmetrically and rotatably mounted on the side of a drive shaft (601), and a rotating shaft (604) connects the crushing blade (602) and the drive shaft (601). Gear (605), said gear (605) is fixedly mounted on one end of rotating shaft (604); A sealing block (607) is slidably installed in the inner cavity of the transmission shaft (601). A toothed plate (608) is symmetrically installed at the bottom of the sealing block (607), and the two toothed plates (608) mesh with the gears (605) on both sides respectively.

2. The curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 1, characterized in that: A scraper (603) is installed at the bottom of the drive shaft (601) to prevent turmeric starch from settling, and a pull rod (606) is fixedly connected to the surface of the sealing block (607).

3. The curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 2, characterized in that: A slider (609) is fixedly installed on the surface of the pull rod (606), a push ring (610) is fixedly installed on the surface of the slider (609), a bracket (611) is fixedly installed on the surface of the tank (1), a motor (612) is installed on the surface of the bracket (611), and the output end of the motor (612) is connected to the transmission shaft (601).

4. The curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 3, characterized in that: A drive frame (613) is slidably installed in the bracket (611). The drive frame (613) is sleeved on the surface of the push ring (610) and is used to push the pull rod (606) to move. A slide rod (614) is fixedly installed on the surface of the drive frame (613). The slide rod (614) is slidably connected to the bracket (611). A first electric telescopic rod (615) is fixedly installed on the surface of the bracket (611). The telescopic end of the first electric telescopic rod (615) is fixedly connected to the drive frame (613).

5. The curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 1, characterized in that: The tank (1) is equipped with a feeding hopper (2) at the top for adding turmeric, and a discharging hopper (3) at the bottom of the tank (1). The jacket (4) is used to introduce cooling water for primary cooling of the tank (1). The tank (1) is equipped with support legs (5) on the side.

6. The curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 2, characterized in that: The surface of the tank (1) is equipped with a secondary cooling assembly (7) for secondary cooling of turmeric. The secondary cooling assembly (7) includes a nozzle (701) and an annular cavity (702). The nozzle (701) is symmetrically opened on the side of the drive shaft (601) and is inclined. The annular cavity (702) is opened in the inner cavity of the drive shaft (601). The nozzle (701) and the annular cavity (702) are connected.

7. A curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 6, characterized in that: The drive shaft (601) is also provided with an air supply chamber (704), the sealing block (607) is slidably installed in the air supply chamber (704), an elliptical hole (703) is provided between the air supply chamber (704) and the annular cavity (702), the pull rod (606) is hollow, and a first through hole (705) is provided on the side of the pull rod (606), the first through hole (705) is connected to the air supply chamber (704).

8. A curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 7, characterized in that: The inner cavity of the drive shaft (601) is also provided with a cavity (706), and a ring sleeve (708) is rotatably installed on the surface of the drive shaft (601). A second through hole (707) is provided between the ring sleeve (708) and the cavity (706). A nitrogen tank (709) is installed on the side of the tank body (1), and a gas pipe is connected between the nitrogen tank (709) and the ring sleeve (708).

9. A curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 3, characterized in that: The tank (1) is provided with an enzyme spraying assembly (8) for spraying enzyme solution into the turmeric powder. The enzyme spraying assembly (8) includes a ring pipe (801) and a nozzle (802). The ring pipe (801) is installed in the inner cavity of the tank (1). Several nozzles (802) are installed on the side of the ring pipe (801) for spraying enzyme solution onto the surface of the turmeric powder. An enzyme tank (803) is installed on the surface of the tank (1) for placing enzyme solution.

10. A curcumin pulverizing device with built-in cooling function for curcumin extraction according to claim 9, characterized in that: A one-way inlet valve (804) is installed on the side of the enzyme tank (803). A piston (805) is slidably installed in the inner cavity of the enzyme tank (803) for injecting the enzyme solution in the enzyme tank (803) into the ring pipe (801). A second electric telescopic rod (806) is installed on the surface of the enzyme tank (803). The telescopic end of the second electric telescopic rod (806) is fixedly connected to the piston (805). A contact switch (807) is installed on the side of the bracket (611). The contact switch (807) is electrically connected to the second electric telescopic rod (806) for controlling the action of the second electric telescopic rod (806).

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