Continuous efficient extraction and purification integrated device for functional components of tea

Abstract

The invention belongs to the technical field of tea processing, and particularly relates to a continuous tea functional component efficient extraction and purification integrated device which comprises a kettle type extractor, a separation and transition unit and a purification crystallizer, and the separation and transition unit comprises a centrifugal solid-liquid separator, an ultrafiltration filter, a phase separator and an evaporation concentrator. The driving mechanism arranged on the tank body can drive the annular seat to rotate, then the conical filter cone can be driven to rotate, in the process, solid particles can be rapidly pushed to the inner wall of the conical filter cone through centrifugal force, liquid attached to the solid surface can be rapidly thrown away while a filter cake layer is formed on the inner wall of the conical filter cone, and compared with natural filtering or normal-pressure filtering, the filtering efficiency is greatly improved. The separation efficiency is improved by multiple times; when the conical filter cone is subjected to high-speed centrifugal separation, the knocking plate can periodically knock the conical filter cone, holes of the conical filter screen can be effectively prevented from being blocked by fine tea residues through vibration knocking in the process, and separation continuity and high efficiency are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of tea processing technology, specifically to an integrated device for the continuous and efficient extraction and purification of functional components in tea. Background Technology

[0002] As a globally recognized health beverage, tea's core value lies not only in its flavor but also in its various bioactive functional components, such as tea polyphenols, theanine, and caffeine. The extraction and purification of these components are key to the deep processing and high-value utilization of tea. Currently, the extraction of functional components from tea is mostly carried out using integrated extraction and purification equipment.

[0003] In the subsequent processing of the extract, centrifugal solid-liquid separation equipment is usually used for coarse treatment. However, when using centrifugal solid-liquid separation equipment, the tea leaves tend to adhere to the filter cartridge during centrifugation, blocking the mesh and thus reducing the separation efficiency of the centrifugal solid-liquid separation equipment. Therefore, we propose a continuous integrated device for efficient extraction and purification of functional components of tea leaves to solve the above problems. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an integrated device for the continuous and efficient extraction and purification of functional components from tea, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: A continuous integrated device for efficient extraction and purification of functional components in tea includes: a kettle extractor, a separation and transition unit, and a purification crystallizer. The separation and transition unit includes a centrifugal solid-liquid separator, an ultrafiltration filter, a phase separator, and an evaporator. A centrifugal solid-liquid separator includes a support base, a tank body fixed to the top of the support base, an annular seat rotatably connected inside the tank body, a conical filter funnel inside the annular seat, a sealing assembly for use with the conical filter funnel mounted on the support base, a rotating seat rotatably connected to the top of the tank body via a bearing, the bottom of the rotating seat being fixedly connected to the top of the annular seat, a drive mechanism for driving the rotating seat to rotate mounted on the top of the tank body, an inlet pipe inside a through hole at the top of the rotating seat, a drain pipe fixedly connected to the bottom of the tank body, a mounting base fixed to the surface of the inlet pipe, two reciprocating arc plates slidably connected to the mounting base, two extrusion plates adapted to the reciprocating arc plates fixed to the bottom of the rotating seat, the bottom of the extrusion plates respectively abutting the top of the corresponding reciprocating arc plates, a striking plate for vibrating the conical filter funnel fixed to the bottom of each reciprocating arc plate, and two springs fixed to the mounting base, the top ends of the springs respectively fixedly connected to the corresponding reciprocating arc plates.

[0006] Furthermore, the sealing assembly includes a triangular base fixed on a support base, an electric push rod fixed to the top of the triangular base, a sealing block adapted to the conical filter funnel fixed to the protruding end of the electric push rod, the sealing block being tightly inserted into the interior of the conical filter funnel, and a flow guide shroud for protecting the electric push rod fixed to the top of the triangular base.

[0007] Furthermore, four springs are fixed on both the upper and lower surfaces of the conical filter, and the other end of each spring is fixedly connected to the inner wall of the annular seat.

[0008] Furthermore, the upper and lower inner walls of the annular seat are both fixed with telescopic covers for protecting the second spring, and the other end of each telescopic cover is fixedly connected to the conical filter.

[0009] Furthermore, the drive mechanism includes a mounting plate fixed to the outer wall of the tank, the liquid inlet pipe fixed inside the through hole of the mounting plate, a drive shaft rotatably connected to the top of the mounting plate via a bearing, a gear fixed to the surface of the drive shaft, and a gear ring fixed to the top of the rotating seat, the gear ring meshing with the gear.

[0010] Furthermore, a diversion bucket is fixedly connected to the bottom end of the liquid inlet pipe.

[0011] Compared with the prior art, the present invention provides an integrated device for continuous and efficient extraction and purification of functional components in tea, which has the following beneficial effects: This invention utilizes a drive mechanism on the tank to rotate the annular seat, which in turn rotates the conical filter bucket. During this process, centrifugal force rapidly pushes solid particles against the inner wall of the conical filter bucket, forming a filter cake layer on its inner wall while quickly separating the liquid adhering to the solid surface. Compared to natural filtration or atmospheric pressure filtration, the separation efficiency is increased several times. While the conical filter bucket is undergoing high-speed centrifugal separation, a striking plate periodically strikes the conical filter bucket. This vibration and striking effectively prevents the pores of the conical filter screen from being clogged by fine tea leaves, ensuring the continuity and high efficiency of the separation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the integrated extraction and purification device of the present invention; Figure 2 This is a schematic diagram of the centrifugal solid-liquid separator of the present invention; Figure 3 This is a front sectional view of the tank structure of the present invention; Figure 4 This is a top sectional view of the annular seat structure of the present invention; Figure 5 This is a schematic diagram of the conical filter structure of the present invention; Figure 6 This is a schematic diagram of the rotating seat structure of the present invention; Figure 7 This is a schematic diagram of the mounting base structure of the present invention.

[0013] In the diagram: 1. Kettle extractor; 2. Separation and transition unit; 21. Centrifugal solid-liquid separator; 211. Support base; 212. Tank body; 213. Annular seat; 214. Conical filter bucket; 215. Sealing assembly; 2151. Triangular seat; 2152. Electric push rod; 2153. Sealing block; 2154. Flow guide; 216. Rotating seat; 217. Drive mechanism; 2171. Mounting plate; 2172. Drive... 2173. Drive shaft; 2174. Gear; 2175. Gear ring; 218. Inlet pipe; 219. Drain pipe; 2110. Mounting base; 2111. Reciprocating arc plate; 2112. Extrusion plate; 2113. Striking plate; 2114. Spring 1; 2115. Spring 2; 2116. Telescopic cover; 2117. Diverter; 22. Ultrafiltration filter; 23. Phase separator; 24. Evaporator / Concentrator; 3. Purification crystallizer. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0015] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown in the figure, an integrated device for continuous high-efficiency extraction and purification of functional components of tea proposed in one embodiment of the present invention includes: a pot-type extractor 1, a separation and transition unit 2, and a purification crystallizer 3. The separation and transition unit 2 includes a centrifugal solid-liquid separator 21, an ultrafiltration filter 22, a phase separator 23, and an evaporator 24. Centrifugal solid-liquid separator 21 includes a support base 211, a tank 212 fixed to the top of the support base 211, an annular seat 213 rotatably connected inside the tank 212, a conical filter 214 disposed inside the annular seat 213, the lower part of the conical filter 214 being rotatably connected to the tank 212 via a bearing, and due to the provided limiting structure, the conical filter 214 only slides up and down inside the annular seat 213. A device is mounted on the support base 211 to connect with the conical filter 214. The sealing assembly 215 is used in conjunction with the tank body 212. A rotating seat 216 is rotatably connected to the top of the tank body 212 via a bearing. The bottom of the rotating seat 216 is fixedly connected to the top of the annular seat 213. A drive mechanism 217 is installed on the top of the tank body 212 to drive the rotating seat 216 to rotate. A liquid inlet pipe 218 is installed inside a through hole on the top of the rotating seat 216. The liquid inlet pipe 218 is rotatably connected to the rotating seat 216 and provides auxiliary support for the rotating seat 216. The bottom end of pipe 218 is connected to and fixed with a diversion bucket 2117. The diversion bucket 2117, through its multi-directional flow design, can disperse the concentrated liquid flow delivered by the inlet pipe 218 into multiple streams, so that the mixed liquid can evenly cover the inner wall area of ​​the conical filter hopper 214, thereby allowing the liquid to pass through the filter holes more efficiently. The bottom of tank 212 is connected to and fixed with a drain pipe 219. A mounting base 2110 is fixed to the surface of the inlet pipe 218, and two reciprocating arc-shaped plates 21 are slidably connected to the mounting base 2110. 11. Two pressing plates 2112 adapted to the reciprocating arc plate 2111 are fixed at the bottom of the rotating seat 216. The bottom of the pressing plate 2112 is respectively attached to the top of the corresponding reciprocating arc plate 2111. The bottom of the reciprocating arc plate 2111 is fixed with a striking plate 2113 that causes the conical filter 214 to vibrate. Two springs 2114 are fixed on the mounting seat 2110. The top of the springs 2114 is respectively fixedly connected to the corresponding reciprocating arc plate 2111. The working principle and usage process of this invention: Tea raw materials are mixed with extraction solvents such as water and ethanol in a kettle extractor 1. By controlling parameters such as temperature and stirring rate, the target functional components in the tea, such as tea polyphenols, are fully dissolved in the solvent, forming a mixture of tea residue and functional component solution, which is prepared for subsequent separation. The mixture output from the kettle extractor 1 enters the tank 212 through the inlet pipe 218. After starting the drive mechanism 217, the rotating seat 216 is driven to rotate. When the rotating seat 216 rotates, it drives the annular seat 213 fixed at its bottom to rotate synchronously. When the annular seat 213 rotates, it drives the conical filter 214 inside it to rotate at high speed. Then, under the action of centrifugal force, the liquid functional component solution in the mixture is thrown out through the filter holes of the conical filter 214 and finally discharged to the next unit through the bottom drain pipe 219; while the solid tea residue is trapped in the conical filter 214, and while the rotating seat 216 rotates, the squeezing plate 2112 at its bottom is also affected. As it rotates synchronously, the top of the extrusion plate 2112 is in contact with the top of the reciprocating arc plate 2111, which in turn pushes the reciprocating arc plate 2111 to slide downward along the mounting base 2110 and compress the spring 2114. When the extrusion plate 2112 passes the contact position, the reciprocating arc plate 2111 can be driven to return upward under the reset force of the spring 2114, thus forming a reciprocating motion. When the reciprocating arc plate 2111 moves back and forth, the striking plate 2113 at its bottom moves with it, which can continuously strike the conical filter hopper 214, thereby causing the conical filter hopper 214 to generate high-frequency vibration, avoiding residue clogging the filter holes and ensuring separation efficiency. After centrifugation, the functional component solution enters the ultrafiltration filter 22. Utilizing the nanoscale pore size of the ultrafiltration membrane, selective retention is achieved based on the molecular weight difference between the functional components and impurities in tea, further removing impurities such as macromolecular colloids and residual fine particles in the solution, resulting in a purer functional component solution. Based on the difference in partition coefficients between the target functional component and other soluble impurities in the solvent, the target component is enriched in a specific phase by liquid-liquid extraction or phase separation in phase separator 23, thereby achieving separation from the remaining impurities. After phase separation, the target component solution enters the evaporator 24, where some solvent is removed by low-temperature evaporation to avoid damage to heat-sensitive components, increase the concentration of the target functional component in the solution, and prepare for subsequent crystallization. The concentrated functional component solution is placed in the purification crystallizer 3. By controlling parameters such as the cooling rate and stirring conditions, the target functional component is precipitated in crystal form. After separation and drying, a high-purity tea functional component product is obtained.

[0016] like Figure 2 and Figure 3As shown, in some embodiments, the sealing assembly 215 includes a triangular base 2151 fixed on a support base 211. An electric push rod 2152 is fixed to the top of the triangular base 2151. A sealing block 2153 adapted to the conical filter 214 is fixed to the protruding end of the electric push rod 2152. A sealing ring is provided on the surface of the sealing block 2153. The sealing ring enhances the sealing performance between the sealing block 2153 and the conical filter 214. However, the sealing ring is not shown in the figure. The sealing block 2153 is tightly inserted into the conical filter 214. Inside 4, the top of the triangular seat 2151 is fixed with a guide shroud 2154 for protecting the electric push rod 2152. When the residue in the conical filter hopper 214 accumulates to a certain amount and needs to be cleaned, the electric push rod 2152 is activated. After the top end of the electric push rod 2152 retracts, it can drive the sealing block 2153 to be pulled out from the bottom of the conical filter hopper 214. At this time, the residue is discharged under the action of gravity and vibration. After the residue is discharged, the top end of the electric push rod 2152 extends, so that the sealing block 2153 reseals the conical filter hopper 214.

[0017] like Figure 5 As shown, in some embodiments, four springs 2115 are fixed on both the upper and lower surfaces of the conical filter 214. The other end of each spring 2115 is fixedly connected to the inner wall of the annular seat 213. The upper and lower inner walls of the annular seat 213 are fixed with telescopic covers 2116 for protecting the springs 2115. The other end of each telescopic cover 2116 is fixedly connected to the conical filter 214. In use, the springs 2115 utilize their elastic properties to amplify the vibration amplitude of the conical filter 214, which not only enhances the removal effect of residue in the filter holes but also avoids damage to the conical filter 214 from a single impact force. The telescopic covers 2116 can protect the springs 2115, thereby extending their service life.

[0018] like Figure 2 and Figure 3 As shown, in some embodiments, the drive mechanism 217 includes a mounting plate 2171 fixed to the outer wall of the tank 212, an inlet pipe 218 fixed inside the through hole of the mounting plate 2171, a drive shaft 2172 rotatably connected to the top of the mounting plate 2171 via a bearing, a gear 2173 fixed to the surface of the drive shaft 2172, and a gear ring 2174 fixed to the top of the rotating seat 216. The gear ring 2174 meshes with the gear 2173. In use, a motor is fixed to the top of the mounting plate 2171, and the output end of the motor is fixedly connected to the top end of the drive shaft 2172. After driving the motor, the drive shaft 2172 can be rotated. After the drive shaft 2172 rotates, it will drive the gear 2173 to rotate. After the gear 2173 rotates, it will drive the gear ring 2174 to rotate. Since the gear ring 2174 is fixed to the top of the rotating seat 216, the conical filter 214 can be driven to rotate.

[0019] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous integrated device for efficient extraction and purification of functional components from tea, characterized in that, include: The apparatus includes a batch extractor (1), a separation and transition unit (2), and a purification crystallizer (3), wherein the separation and transition unit (2) includes a centrifugal solid-liquid separator (21), an ultrafiltration filter (22), a phase separator (23), and an evaporator (24). A centrifugal solid-liquid separator (21) includes a support base (211), a tank (212) is fixed to the top of the support base (211), an annular seat (213) is rotatably connected to the inside of the tank (212), a conical filter (214) is provided inside the annular seat (213), a sealing assembly (215) for use with the conical filter (214) is installed on the support base (211), a rotating seat (216) is rotatably connected to the top of the tank (212) through a bearing, the bottom of the rotating seat (216) is fixedly connected to the top of the annular seat (213), a drive mechanism (217) for driving the rotating seat (216) to rotate is installed on the top of the tank (212), and an inlet pipe (218) is provided inside the through hole opened on the top of the rotating seat (216). The bottom of the tank (212) is connected to a drain pipe (219), and the surface of the inlet pipe (218) is fixed with a mounting base (2110). Two reciprocating arc plates (2111) are slidably connected on the mounting base (2110). The bottom of the rotating seat (216) is fixed with two extrusion plates (2112) that are adapted to the reciprocating arc plates (2111). The bottom of the extrusion plates (2112) is respectively attached to the top of the corresponding reciprocating arc plates (2111). The bottom of each reciprocating arc plate (2111) is fixed with a striking plate (2113) that causes the conical filter (214) to vibrate. Two springs (2114) are fixed on the mounting base (2110). The top of each spring (2114) is respectively fixedly connected to the corresponding reciprocating arc plates (2111).

2. The integrated device for continuous high-efficiency extraction and purification of functional components in tea according to claim 1, characterized in that: The sealing assembly (215) includes a triangular seat (2151) fixed on a support base (211), an electric push rod (2152) fixed on the top of the triangular seat (2151), a sealing block (2153) adapted to the conical filter (214) fixed at the top end of the electric push rod (2152), the sealing block (2153) being tightly inserted into the interior of the conical filter (214), and a flow guide (2154) for protecting the electric push rod (2152) fixed on the top of the triangular seat (2151).

3. The integrated device for continuous high-efficiency extraction and purification of functional components in tea according to claim 1, characterized in that: Four springs (2115) are fixed on both the upper and lower surfaces of the conical filter (214), and the other end of each spring (2115) is fixedly connected to the inner wall of the annular seat (213).

4. The integrated device for continuous high-efficiency extraction and purification of functional components in tea according to claim 3, characterized in that: The upper and lower inner walls of the annular seat (213) are both fixed with telescopic covers (2116) for protecting the second spring (2115), and the other end of the telescopic covers (2116) is fixedly connected to the conical filter (214).

5. The integrated device for continuous high-efficiency extraction and purification of functional components in tea according to claim 1, characterized in that: The drive mechanism (217) includes a mounting plate (2171) fixed to the outer wall of the tank (212), and the liquid inlet pipe (218) is fixed inside the through hole of the mounting plate (2171). The top of the mounting plate (2171) is rotatably connected to the drive shaft (2172) via a bearing. A gear (2173) is fixed on the surface of the drive shaft (2172). A gear ring (2174) is fixed on the top of the rotating seat (216). The gear ring (2174) meshes with the gear (2173).

6. The integrated device for continuous high-efficiency extraction and purification of functional components in tea according to claim 1, characterized in that: The bottom end of the inlet pipe (218) is connected to a diversion bucket (2117).

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