Flavonoid compound extraction and purification equipment

Abstract

The invention relates to the field of compound purification, in particular to flavonoid compound extraction and purification equipment. The device comprises an operation tank, an extraction and purification table, a crushing and mixing assembly, a refrigeration part, an adsorption part and a backflow assembly. A condensation cavity, an adsorption cavity and an extraction and purification cavity are formed in the operation tank; the extracting agent inlet pipe is communicated with the extracting and purifying cavity; the extractant inlet pipe and the eluent outlet pipe are communicated with the condensation cavity; the steam return pipe is communicated with the extraction and purification cavity and the condensation cavity; the extraction and purification table is detachably arranged at the bottom of the operation tank and communicated with the extraction and purification cavity; the crushing and mixing component is positioned below the operation tank; the refrigeration part is located in the condensation cavity; the adsorption part is positioned in the adsorption cavity and internally provided with an adsorbent; the backflow assembly is located between the condensation cavity and the adsorption cavity. The device is compact in structure, concentrated and diversified in function, coherent and efficient in orange peel / orange peel and reagent treatment process, and beneficial to extraction and purification of flavonoid compounds in orange peel / orange peel raw materials.

Description

Technical Field

[0001] The present invention relates to the field of compound purification, and particularly to an extraction and purification device for flavonoid compounds. Background Art

[0002] Orange peel contains flavonoid compounds, mainly including hesperidin, polymethoxyflavones (PMF), naringin, naringenin, hesperetin, sinensetin, and flavanone, etc. The effects of these flavonoid compounds are as follows: Antioxidant effect: Flavonoid compounds are powerful antioxidants that can scavenge free radicals, delay aging, and prevent chronic diseases such as cardiovascular diseases and cancers. Anti-inflammatory effect: These compounds have anti-inflammatory effects and can be used to relieve inflammatory diseases such as arthritis and enteritis. Antibacterial and antiviral: Flavonoid compounds have inhibitory effects on a variety of bacteria and viruses, which helps to develop natural antibacterial drugs. Anti-cancer effect: Research shows that they can inhibit the growth of cancer cells and induce their apoptosis, having potential anti-cancer applications. Cardiovascular protection: Flavonoid compounds help to reduce blood lipids, improve vascular function, and prevent atherosclerosis and hypertension. Beauty and skin care: Due to their antioxidant and anti-inflammatory properties, flavonoid compounds are often used in skin care products to help anti-aging and improve skin problems.

[0003] The Chinese patent document with the authorization announcement number CN209952285U provides an extraction device for flavonoid compounds, which relates to the technical field of compound extraction, including a tank body and a placement groove. The left side of the tank body is fixedly provided with a placement groove, the top of the tank body is fixedly provided with a hydraulic press, the inside of the tank body is fixedly provided with a hydraulic rod, and the top of the hydraulic rod is fixedly provided with the hydraulic press. The right side of the tank body is fixedly provided with a liquid extraction machine, the bottom of the tank body is fixedly provided with a fixed base, the bottom end of the front surface of the tank body is fixedly provided with a sealing valve, and the bottom end of the hydraulic rod is fixedly provided with an extrusion device.

[0004] The extraction process of flavonoid compounds in the prior art has the following deficiencies: 1. Using simple soaking extraction or extrusion and stirring extraction, due to the large and uneven raw material particles, the extraction effect of flavonoid compounds in the raw materials is limited. 2. The extract contains a large amount of impurities and other components, resulting in low purity of flavonoid compounds, and further filtration and purification are required with the help of other equipment. The whole purification process has many procedures and takes a long time, but the purification effect cannot be guaranteed. Summary of the Invention

[0005] Aiming at the problems in the background art, an extraction and purification device for flavonoid compounds is proposed, which has a compact structure, concentrated and diverse functions, and a continuous and efficient process for processing orange peel and various reagents, facilitating the extraction and purification of flavonoid compounds in orange peel raw materials.

[0006] The present invention provides an equipment for extracting and purifying flavonoids, which includes an operation tank, an extraction and purification table, a crushing and mixing component, a refrigerating component, an adsorbing component and a reflux component. Inside the operation tank, a condensation chamber, an adsorption chamber and an extraction and purification chamber are sequentially arranged from top to bottom; an extraction agent inlet pipe is connected to the extraction and purification chamber; both the extraction agent inlet pipe and the eluent outlet pipe are connected to the condensation chamber; a steam reflux pipe is connected to the extraction and purification chamber and the condensation chamber; the extraction and purification table is detachably arranged at the bottom of the operation tank and is connected to the extraction and purification chamber; during extraction, the extraction and purification table accommodates raw materials and an extraction agent and forms extraction steam; during purification, the extraction and purification table receives the eluent containing the extract and forms purified solids; the crushing and mixing component is located at the lower end of the operation tank, and drives the material flow by extending a crushing and mixing part into the extraction and purification table, assisting in crushing and mixing the raw materials for extraction on the one hand and drying the raw materials for purification on the other hand; the refrigerating component is located in the condensation chamber and condenses the extraction steam; the adsorbing component is located in the adsorption chamber, with an adsorbent inside, adsorbing the extract in the condensed water; the reflux component is located between the condensation chamber and the adsorption chamber, and by setting a double-layer rotating structure, the condensed water and the eluent uniformly enter the adsorbing component.

[0007] Preferably, the extraction and purification table includes an open extraction and purification cylinder; a heating layer is arranged inside the extraction and purification cylinder, and an installation limiting frame is arranged on the outer periphery.

[0008] Preferably, the adsorbing component includes an adsorption cylinder; the outer wall of the adsorption cylinder fits with the wall of the adsorption chamber, and an annular chamber with an open upper end is arranged, and a liquid outlet pipe with a one-way valve is arranged at the bottom of the adsorption cylinder; the adsorbent is filled in the annular chamber.

[0009] Preferably, the crushing and mixing component includes a lifting driving part surrounded by an annular chamber; the crushing and mixing part is located at the lifting end of the lifting driving part; the crushing and mixing part includes a crushing and mixing frame; a material flow space is reserved between the outer periphery of the crushing and mixing frame and the inner wall of the extraction and purification cylinder, a crusher is arranged at the bottom of the crushing and mixing frame, and a circle of material flow holes is arranged around the crusher on the crushing and mixing frame; crushing knife frames are arranged in the material flow holes.

[0010] Preferably, the reflux component includes a fixing plate fixed on the adsorption cylinder; a circle of upper through holes is arranged on the fixing plate, and a rotating disk is rotatably arranged at the bottom of the fixing plate; lower through holes are arranged on the rotating disk; as the rotating disk rotates, the lower through holes communicate with or stagger from the corresponding upper through holes.

[0011] Preferably, a diversion frame corresponding to the lower through holes is arranged at the bottom of the rotating disk; the diversion frame is inclined, with the upper end located on one side of the corresponding lower through hole, and the lower end extending obliquely towards the other side of the lower through hole and extending into the annular chamber.

[0012] Preferably, the refrigerating component includes a hollow refrigerating seat; a circle of semiconductor refrigeration chips is arranged on the side wall of the refrigerating seat; the refrigerating ends of the semiconductor refrigeration chips face outwards, and the heating ends face inwards; the position of the refrigerating seat is opposite to the steam outlet end of the steam reflux pipe.

[0013] Preferably, the refrigeration seat is a conical cylinder with a small bottom and a large top, and a hollow heat dissipation cylinder is arranged on the top; the heat dissipation cylinder passes through the operating tank and has a built-in heat dissipation fan.

[0014] Preferably, the operating tank is connected to a vacuum pump and is adjusted to a negative pressure working environment through the vacuum pump.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: first, orange peel / orange peel and extractant are mixed and extracted in the extraction and purification station, and enter the condensation chamber in the form of steam. The refrigeration component condenses the steam. Then, the reflux component introduces the condensate into the annular cavity evenly through the relative rotation of the double-layer structure, so that the adsorbent fully adsorbs the flavonoid compounds. After the cyclic extraction, the eluent is evenly introduced into the annular cavity through the relative rotation of the above-mentioned double-layer structure, so that the flavonoid compounds adsorbed by the adsorbent are eluted back to the extraction and purification station. Finally, the purified flavonoid compounds are recovered by drying the eluent. In this process, the extraction and purification station accommodates the raw materials and the extractant during extraction and forms extraction steam, and receives the eluent containing the extract during purification and forms purified solids. The reflux component evenly introduces the extract and the eluent through the relative rotation of the double-layer structure. Therefore, the device integrates the extraction and purification functions, and the extraction is carried out by combining immersion and reflux, thereby effectively improving the processing efficiency of orange peel / orange peel raw materials. In addition, a crushing and mixing assembly is provided to extend into the extraction and purification platform through the crushing and mixing parts to drive the material flow, which assists in crushing and mixing the extraction raw materials on the one hand, and assists in drying the purification raw materials on the other hand. The treatment effect of orange peel / orange peel raw materials is further improved. The equipment has a compact structure, concentrated and diverse functions, and the process of processing orange peel / orange peel and various reagents is consistent and efficient, which is conducive to the extraction and purification of flavonoid compounds in orange peel / orange peel raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the flavonoid compound extraction and purification equipment of the present invention (viewing angle 1);

[0017] Figure 2 Schematic diagram of the flavonoid compound extraction and purification equipment of the present invention (viewing angle 2);

[0018] Figure 3 It is a cross-sectional view of the flavonoid compound extraction and purification equipment of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the extraction and purification station in the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the adsorption member in the present invention;

[0021] Figure 6 It is a schematic diagram of the structure of the crushing and mixing assembly in the present invention;

[0022] Figure 7 This is a schematic structural diagram of the reflux component in the present invention;

[0023] Figure 8 This is a cross-sectional view of the combined structure of the reflux component and the adsorbing member in the present invention;

[0024] Figure 9 This is a schematic structural diagram (viewpoint one) of the refrigerating member in the present invention;

[0025] Figure 10 This is a schematic structural diagram (viewpoint two) of the refrigerating member in the present invention.

[0026] Reference numerals: 1, operation tank; 101, extractant inlet pipe; 102, eluent outlet pipe; 103, eluent inlet pipe; 104, condensation chamber; 105, adsorption chamber; 106, extraction and purification chamber; 2, extraction and purification table; 201, extraction and purification cylinder; 202, installation limiting frame; 203, heating layer; 3, steam reflux pipe; 4, adsorbing member; 401, adsorption cylinder; 402, annular chamber; 403, liquid outlet pipe; 5, crushing and mixing assembly; 501, lifting driving member; 502, crushing and mixing frame; 503, crusher; 504, material flow hole; 505, crushing tool rest; 6, reflux component; 601, fixing plate; 602, rotating disk; 603, diversion frame; 604, upper through hole; 605, lower through hole; 7, refrigerating member; 701, refrigerating seat; 702, semiconductor refrigerating sheet; 703, heat dissipation cylinder; 704, heat dissipation fan. Detailed implementation manners

[0027] Embodiment 1

[0028] As Figures 1 - 3As shown in the figure, an extraction and purification device for flavonoids proposed by the present invention includes an operation tank 1, an extraction and purification table 2, a crushing and mixing assembly 5, a refrigeration component 7, an adsorption component 4, and a reflux assembly 6. Inside the operation tank 1, a condensation chamber 104, an adsorption chamber 105, and an extraction and purification chamber 106 are sequentially arranged from top to bottom; an extraction agent inlet pipe 101 is connected to the extraction and purification chamber 106; both the extraction agent inlet pipe 101 and an eluent outlet pipe 102 are connected to the condensation chamber 104; a steam reflux pipe 3 is connected to the extraction and purification chamber 106 and the condensation chamber 104; the extraction and purification table 2 is detachably arranged at the bottom of the operation tank 1 and is connected to the extraction and purification chamber 106; during extraction, the extraction and purification table 2 accommodates raw materials and an extraction agent and forms extraction steam; during purification, the extraction and purification table 2 receives the eluent containing the extract and forms purified solids; the crushing and mixing assembly 5 is located at the lower end of the operation tank 1, and drives the material to flow through a crushing and mixing part into the extraction and purification table 2, assisting in crushing and mixing the raw materials for extraction on the one hand, and assisting in drying the raw materials for purification on the other hand; the refrigeration component 7 is located in the condensation chamber 104 to condense the extraction steam; the adsorption component 4 is located in the adsorption chamber 105, with an adsorbent inside, to adsorb the extract in the condensed water; the reflux assembly 6 is located between the condensation chamber 104 and the adsorption chamber 105, and by setting a double-layer rotating structure, the condensed water and the eluent enter the adsorption component 4 evenly.

[0029] As Figure 4 shown, the extraction and purification table 2 includes an open extraction and purification cylinder 201; a heating layer 203 is arranged inside the extraction and purification cylinder 201, and an installation limit frame 202 is arranged on the outer periphery.

[0030] It should be further noted that the extraction and purification table 2 is set to be detachable.

[0031] Before extraction, the extraction and purification table 2 needs to be removed and a quantitative amount of dried orange peel / tangerine peel is put in. Then the extraction and purification table 2 is installed at the bottom of the operation tank 1, and the installation method can be fixed by screws, or fixed by threads, etc. The extraction agent inlet pipe 101 passes a quantitative amount of extraction agent into the extraction and purification table 2, and the extraction of flavonoids can be started. The extraction agent is generally an organic solvent, such as ethanol, methanol, n-butanol, acetone, ethyl acetate, etc. Based on the principle of similar solubility, a suitable organic solvent is selected to soak and extract the orange peel / tangerine peel containing flavonoids. After extraction for a set time, the heating layer 203 generates heat to convert the flavonoids into steam. During purification, the extraction and purification table 2 needs to be removed first, and after cleaning the extraction residue, it is reinstalled. During subsequent elution, the eluted liquid agent may fall into the extraction and purification cylinder 201. After the elution is completed, the heating layer 203 generates heat to dry the eluent, and the flavonoids are left in the extraction and purification cylinder 201 in the form of solids. The extraction and purification table 2 is removed to collect the purified flavonoids.

[0032] As Figure 5As shown in the figure, the adsorbent 4 includes an adsorption cylinder 401; the outer wall of the adsorption cylinder 401 is attached to the wall of the adsorption cavity 105, and an annular cavity 402 with an open upper end is provided. A liquid outlet pipe 403 with a one-way valve is provided at the bottom of the adsorption cylinder 401; the adsorbent is filled in the annular cavity 402.

[0033] It should be further noted that the adsorbent is set as activated carbon particles.

[0034] Activated carbon has a strong adsorption capacity and can adsorb and enrich flavonoids in the condensed water. Subsequently, purified flavonoids can be obtained through elution. The liquid outlet pipe 403 can only discharge liquid, thus avoiding the entry of water vapor. The extraction agent and the elution agent both flow out from the liquid outlet pipe 403.

[0035] As Figure 6 shown in the figure, the crushing and mixing assembly 5 includes a lifting drive member 501 surrounded by the annular cavity 402; the crushing and mixing member is located at the lifting end of the lifting drive member 501; the crushing and mixing member includes a crushing and mixing frame 502; a material flow space is reserved between the outer periphery of the crushing and mixing frame 502 and the inner wall of the extraction and purification cylinder 201. A crusher 503 is provided at the bottom of the crushing and mixing frame 502, and a circle of material flow holes 504 is also provided around the crusher 503 on the crushing and mixing frame 502; a crushing knife holder 505 is provided in the material flow holes 504.

[0036] It should be further noted that the crushing knife holder 505 is formed by combining multiple groups of blades into a radial structure, dividing the crushing knife holder 505 into multiple equal-sized fan-shaped cavities.

[0037] By lifting the crushing and mixing frame 502, the height of the crusher 503 is adjusted. The crusher 503 pushes the material in one direction (up or down) by rotation. The material returns from the material flow space, passes through the material flow holes 504, and forms a circulating flow path (clockwise or counterclockwise) to achieve the purpose of mixing orange peel / tangerine peel and the extraction agent. The crusher 503 and the crushing knife holder 505 cut and crush the material to accelerate the extraction of flavonoids.

[0038] As Figures 7 - 8 shown in the figure, the reflux assembly 6 includes a fixing plate 601 fixed on the adsorption cylinder 401; a circle of upper through holes 604 is provided on the fixing plate 601. The bottom of the fixing plate 601 is driven by a motor and rotatably provided with a rotating disk 602; a lower through hole 605 is provided on the rotating disk 602; as the rotating disk 602 rotates, the lower through hole 605 communicates with or is staggered from the corresponding upper through hole 604.

[0039] After the condensed extraction agent and the elution liquid enter the condensation cavity 104, as the rotating disk 602 rotates, the upper through holes 604 at different positions respectively communicate with the lower through hole 605, and the communication sequence can be clockwise or counterclockwise. When communicating, the liquid enters the annular cavity 402 and acts on the adsorbent.

[0040] It should be further noted that a diversion frame 603 corresponding to the lower through hole 605 is provided at the bottom of the rotating disc 602; the diversion frame 603 is inclined, with the upper end located on one side of the corresponding lower through hole 605, and the lower end extending obliquely towards the other side of the lower through hole 605 and extending into the annular cavity 402.

[0041] It should be further noted that vertical diversion grooves are provided on the diversion surface of the diversion frame 603.

[0042] When the liquid exits from the lower through hole 605, the liquid falls on the diversion frame 603 and moves down along the diversion grooves. During the downward movement, it contacts the adsorbent, making the adsorbent evenly distributed. At the same time, the diversion frame 603 moves synchronously with the rotation of the rotating disc 602, stirring the adsorbent, thereby further promoting the interaction between the liquid and the adsorbent. This enables the adsorbent to adsorb and elute sufficiently, improving the extraction and purification effect of flavonoids.

[0043] As Figures 9 - 10 shown, the refrigerating member 7 includes a hollow refrigerating seat 701; a ring of semiconductor refrigerating sheets 702 is provided on the side wall of the refrigerating seat 701; the refrigerating ends of the semiconductor refrigerating sheets 702 face outwards, and the heating ends face inwards; the position of the refrigerating seat 701 is opposite to the steam outlet end of the steam return pipe 3.

[0044] The refrigerating seat 701 is cooled by the semiconductor refrigerating sheets 702, so that the water vapor entering the condensation cavity 104 is condensed for subsequent adsorption.

[0045] It should be further noted that the refrigerating seat 701 is a frustum cone with a smaller bottom and a larger top, and a heat dissipation cylinder 703 communicating with the hollow is provided at the top; the heat dissipation cylinder 703 penetrates through the operation tank 1, and a heat dissipation fan 704 is built therein; when the temperature in the frustum cone continues to rise, the heat dissipation fan 704 draws out the hot air to maintain the condensation effect of the heat dissipation cylinder 703.

[0046] The operation tank 1 is connected to a vacuum pump and adjusted to a negative pressure working environment through the vacuum pump; in a negative pressure environment, the boiling point of the liquid will decrease, and it can evaporate at a lower temperature, thereby improving the extraction and purification efficiency.

[0047] Embodiment 2

[0048] Based on the flavonoid extraction and purification equipment in Embodiment 1, this embodiment proposes a flavonoid extraction and purification method:

[0049] S1. Dry the orange peel; after weighing the orange peel and placing it on the extraction and purification table 2, install the extraction and purification table 2 at the bottom of the operation tank 1; the extraction agent inlet pipe 101 passes 2 - 3 times the volume of methanol solution (volume fraction 90%) into the extraction and purification table 2 to soak the orange peel.

[0050] S2. During the soaking process, the crushing and mixing rack 502 extends into the extraction and purification table 2. The crusher 503 pushes the material in one direction (up or down) by rotation. The material returns from the material flow space, passes through the material flow holes 504, forming a circulating flow route; the crusher 503 and the crushing tool holder 505 cut, crush, and mix the material.

[0051] S3. After extraction for a set duration, the heating layer 203 generates heat under a negative pressure environment, converting the flavonoids into steam.

[0052] S4. The steam containing flavonoids enters the condensation chamber 104; the semiconductor refrigeration sheet 702 cools the refrigeration seat 701 to condense the water vapor entering the condensation chamber 104.

[0053] S5. With the rotation of the rotating disk 602, the upper through holes 604 at different positions are respectively communicated with the lower through holes 605, and the condensed extractant enters the annular chamber 402; the liquid falls on the diversion rack 603 and moves down along the diversion groove; during the downward movement, it contacts the adsorbent, and at the same time, the diversion rack 603 moves synchronously with the rotation of the rotating disk 602 to stir the adsorbent; after the flavonoids are adsorbed by the activated carbon adsorbent, the remaining liquid returns to the extraction and purification table 2 along the liquid outlet pipe 403 and then enters the extraction process again.

[0054] S6. After the cyclic extraction is completed, remove the extraction and purification table 2, clean the extraction residues, and then reinstall it.

[0055] S7. Sequentially use boiling water, boiling methanol, 7% phenol water, and 15% phenol aqueous solution as eluents to enter the condensation chamber 104 for gradient elution of the activated carbon adsorbed with flavonoids: during each elution process, rotate the rotating disk 602, and the eluent enters the annular chamber 402; at the same time, the liquid falls on the diversion rack 603 and moves down along the diversion groove; during the downward movement, the eluent contacts the activated carbon, and at the same time, the diversion rack 603 moves synchronously with the rotation of the rotating disk 602 to stir the activated carbon; the eluent liquid that washes off the flavonoids returns to the extraction and purification table 2 along the liquid outlet pipe 403.

[0056] S8. After the eluent collection is completed, the heating layer 203 generates heat under a negative pressure environment to dry the eluent. When it is almost dry, the crushing and mixing rack 502 extends into the extraction and purification table 2, and the crusher 503 rotates to stir and accelerate dehydration.

[0057] S9. The water vapor generated by the drying of the eluent returns to the condensation chamber 104 and is recycled after condensation; the flavonoids extracted remain in the extraction and purification cylinder 201 in the form of solids.

[0058] S10. Remove the extraction and purification table 2 and let it cool naturally to room temperature, then the purified flavonoids can be collected.

[0059] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited thereto, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art to which the present invention pertains.

Claims

1. A flavonoid compound extraction and purification device, characterized in that: include: An operating tank (1), wherein a condensation chamber (104), an adsorption chamber (105) and an extraction and purification chamber (106) are sequentially arranged inside the operating tank (1) from top to bottom; an extractant inlet pipe (101) is connected to the extraction and purification chamber (106); the extractant inlet pipe (101) and the eluent outlet pipe (102) are both connected to the condensation chamber (104); and a steam reflux pipe (3) is connected to the extraction and purification chamber (106) and the condensation chamber (104); The extraction purification table (2) is detachably arranged at the bottom of the operation tank (1) and connected to the extraction purification chamber (106); during extraction, the extraction purification table (2) contains the raw material and the extractant and forms extraction steam; during purification, the extraction purification table (2) receives the eluent containing the extract and forms purified solids; A crushing and mixing component (5), which is located at the lower end of the operating tank (1) and extends into the extraction and purification platform (2) through the crushing and mixing component to drive the flow of materials, on the one hand to assist in crushing and mixing the extraction raw materials, and on the other hand to assist in drying the purification raw materials; A refrigeration element (7), the refrigeration element (7) is located in the condensation chamber (104) and condenses the extracted steam; An adsorption element (4), the adsorption element (4) is located in the adsorption chamber (105), and contains an adsorbent therein to adsorb the extract in the condensed water; And a reflux component (6), the reflux component (6) is located between the condensation chamber (104) and the adsorption chamber (105), and by providing a double-layer rotating structure, condensed water and eluent can evenly enter the adsorption element (4).

2. The flavonoid compound extraction and purification equipment according to claim 1, characterized in that: The extraction and purification station (2) comprises an open extraction and purification cylinder (201); a heating layer (203) is arranged inside the extraction and purification cylinder (201), and a mounting limit frame (202) is arranged on the outer periphery.

3. The flavonoid compound extraction and purification equipment according to claim 2, characterized in that: The adsorption element (4) comprises an adsorption cylinder (401); the outer wall of the adsorption cylinder (401) is in contact with the wall of the adsorption chamber (105), and an annular cavity (402) with an open upper end is provided; a liquid outlet pipe (403) with a one-way valve is provided at the bottom of the adsorption cylinder (401); and an adsorbent is filled in the annular cavity (402).

4. The flavonoid compound extraction and purification equipment according to claim 3, characterized in that: The pulverizing and mixing component (5) comprises a lifting and lowering driving member (501) surrounded by an annular cavity (402); the pulverizing and mixing member is located on the lifting end of the lifting and lowering driving member (501); The pulverizing and mixing part comprises a pulverizing and mixing frame (502); a material flow space is reserved between the outer periphery of the pulverizing and mixing frame (502) and the inner wall of the extraction and purification cylinder (201); a pulverizer (503) is arranged at the bottom of the pulverizing and mixing frame (502); and a circle of material flow holes (504) are arranged on the pulverizing and mixing frame (502) around the pulverizer (503); and a pulverizing blade holder (505) is arranged in the material flow hole (504).

5. The flavonoid compound extraction and purification equipment according to claim 3, characterized in that: The reflux assembly (6) comprises a fixed plate (601) fixed on the adsorption cylinder (401); a circle of upper through holes (604) is arranged on the fixed plate (601); a rotating disk (602) is rotatably arranged at the bottom of the fixed plate (601); and a lower through hole (605) is arranged on the rotating disk (602); The lower through hole (605) is connected or interlaced with the upper through hole (604) at the corresponding position as the rotating disk (602) rotates.

6. The flavonoid compound extraction and purification equipment according to claim 5, characterized in that: A flow guide frame (603) corresponding to the lower through hole (605) is arranged at the bottom of the rotating disk (602); the flow guide frame (603) is arranged obliquely, with the upper end located on one side corresponding to the lower through hole (605) and the lower end extending obliquely toward the other side of the lower through hole (605) and extending into the annular cavity (402).

7. The flavonoid compound extraction and purification equipment according to claim 1, characterized in that: The refrigeration element (7) comprises a hollow refrigeration seat (701); a circle of semiconductor refrigeration sheets (702) is arranged on the side wall of the refrigeration seat (701); the refrigeration end of the semiconductor refrigeration sheet (702) faces outwards, and the heating end faces inwards; The refrigeration seat (701) is located opposite to the steam outlet end of the steam return pipe (3).

8. The flavonoid compound extraction and purification equipment according to claim 7, characterized in that: The refrigeration seat (701) is a conical cylinder with a small bottom and a large top, and a heat dissipation cylinder (703) communicating with the hollow is arranged on the top; the heat dissipation cylinder (703) passes through the operation tank (1) and has a built-in heat dissipation fan (704).

9. The flavonoid compound extraction and purification equipment according to claim 1, characterized in that: The operating tank (1) is connected to a vacuum pump and is adjusted to a negative pressure working environment by the vacuum pump.

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