Concentration apparatus for EGCG and caffeine complex
By designing a detachable evaporator and integrated cleaning components in the concentration equipment, the problem of inconvenient cleaning of the inner wall of the evaporator chamber is solved, achieving efficient and thorough cleaning results, suitable for the concentration of EGCG and caffeine compound materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING BIOLOGICAL MFG RES INST CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-23
AI Technical Summary
After prolonged use, the inner wall of the existing concentrator is prone to solidification and adhesion of raw materials or impurities, making cleaning inconvenient and inefficient. Existing cleaning components cannot completely clean the inner wall.
Design an EGCG and caffeine compound concentration device with a detachable evaporator structure, combined with a cleaning component and a brushing component. The cleaning component includes a cleaning cage and a brushing component. The cleaning cage consists of an inlet pipe, a base ring pipe and a rinsing branch pipe. The brushing component consists of a drive motor, a brushing shaft, a brushing support arm and a brushing rod. Efficient cleaning is achieved through the combination of rinsing and brushing.
It enables rapid and thorough cleaning of the inner wall of the evaporator, improving cleaning efficiency and quality, reducing water consumption, saving energy and protecting the environment, and is suitable for both single and long-term cleaning.
Smart Images

Figure CN224388085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a concentration device, and more particularly to a concentration device for a compound of EGCG and caffeine, belonging to the technical field of concentration devices. Background Technology
[0002] Studies have shown that the combination of EGCG (epigallocatechin gallate) and caffeine exhibits significant synergistic effects in skincare, weight management, and health. For example, in skincare applications, it can reduce eye puffiness and dark circles (5% caffeine + EGCG combination serum promotes microcirculation around the eyes, accelerates water metabolism, and quickly reduces puffiness; EGCG's strong antioxidant properties help inhibit pigmentation and lighten dark circles), as well as provide anti-aging and scalp care. In weight management and metabolic regulation, it can enhance energy expenditure: EGCG inhibits COMT enzymes, while caffeine stimulates the sympathetic nervous system; the combination increases 24-hour energy expenditure by approximately 750 kJ (approximately 180 kcal). It also optimizes lipid metabolism: low-dose combinations (40 mg / kg EGCG + 20 mg / kg caffeine) are safer and more effective than high-dose single-ingredient combinations, significantly reducing weight and adipose tissue weight, and improving hyperlipidemia and fatty liver. Therefore, the combination of EGCG and caffeine demonstrates a "1+1>2" effect in various scenarios.
[0003] EGCG and caffeine blends typically require concentration equipment, specifically concentrators. Concentrators are used in concentration processes in industries such as traditional Chinese medicine, health products, natural flavorings, food additives, food, and chemicals. The mainstream concentrators used in production include spherical concentrators, single-effect concentrators, and double-effect concentrators. Currently, double-effect concentrators are most commonly used for the concentration of EGCG and caffeine blends. Double-effect concentrators utilize simultaneous evaporation from two effects, fully utilizing secondary steam, which saves on boiler investment and energy consumption.
[0004] However, after prolonged use, some raw materials or impurities tend to solidify and adhere to the inner wall of the evaporation chamber (evaporation tank) of existing concentrators. This requires regular disassembly and cleaning, which is often inconvenient and makes it difficult for staff to thoroughly clean the inner wall of the evaporation tank. Sometimes, it is even necessary to clean it after each use, otherwise the residual residue will affect the concentrator's reuse. Some existing technologies include cleaning components inside the evaporation tank, but most of these rely on the up-and-down movement and rotation of the brushing mechanism for cleaning, which is inefficient and cannot guarantee complete cleaning of the evaporation tank's inner wall. Summary of the Invention
[0005] In order to overcome the shortcomings of the prior art, this utility model provides a concentration device for a compound of EGCG and caffeine.
[0006] The technical solution adopted in this utility model is as follows: A concentration device for a compound of EGCG and caffeine is designed, including a heater, an evaporator, a condenser, and a receiving tank connected in series. The heater includes a first-effect heater and a second-effect heater, and the evaporator includes a first-effect evaporator and a second-effect evaporator. It also includes a cleaning assembly, which is disposed in the evaporator and used to clean the inner wall of the evaporator. The evaporator includes a tank body and a cap installed at the upper end of the tank body, and the two are detachably connected. Typically, the evaporator of a concentrator is a one-piece structure, with only a manhole and cover plate at the upper end. Here, it is designed as a detachable structure with a tank body and a cap to facilitate the disassembly, assembly, and maintenance of the cleaning assembly.
[0007] The cleaning assembly includes a cleaning cage housed within a tank. The cleaning cage comprises an inlet pipe, a base ring pipe, and flushing branch pipes. At least two inlet pipes are mounted on the base ring pipe, and these inlet pipes are detachably connected to and communicate with the base ring pipe. The tank body is equipped with pipe fittings corresponding to the inlet pipes. The inlet pipes are inserted into the pipe fittings and extend out of the tank body, meaning the cleaning cage is supported within the tank body via the inlet pipes. The detachable connection between the inlet pipes and the base ring pipe facilitates easy assembly and disassembly of the cleaning cage. A pump is mounted on the inlet pipe extending out of the tank body, and typically, the other end of the pump is connected to a clean water source. Multiple flushing branch pipes are arranged in a circumferential array on the base ring pipe, each communicating with it. Multiple flushing holes are provided on the flushing branch pipes and the base ring pipe. When cleaning the inner wall of the tank, water is pumped into the inlet pipe by the pump, then enters the base ring pipe, then into each flushing branch pipe, and finally sprayed out from the flushing holes on the base ring pipe and each flushing branch pipe to flush the inner wall of the tank. The flushing holes are arranged in an array along the length of the flushing branch pipe on its outer side. Multiple flushing holes are also provided on the outer and lower sides of the base ring pipe, arranged circumferentially along the base ring pipe. The cleaning cage is essentially the same height as the inner cavity of the tank, allowing the flushing holes on it to almost cover all parts of the inner wall of the tank, facilitating rapid flushing and improving efficiency.
[0008] Furthermore, a one-way nozzle is installed on the rinsing hole, which on the one hand increases the water flow impact force during rinsing, and on the other hand prevents material from entering the various cavities of the cleaning cage during concentration.
[0009] Furthermore, an input connector communicating with the base ring tube is provided on the outside of the base ring tube. The input connector is threadedly connected to the input tube, thereby realizing a detachable connection between the input tube and the base ring tube, which is simple and convenient.
[0010] Furthermore, at least two input connectors communicating with the inner cavity of the base ring tube are arranged in a circumferential array on the outer side of the base ring tube, meaning that at least two input tubes are respectively supported on opposite sides of the cleaning cage, making the structure more stable. The end of the input connector away from the base ring tube abuts against the inner wall of the tank, thereby quickly positioning and centering the cleaning cage. The input connector and the pipe connector are respectively provided with internal threads, and the input tube is provided with external threads that connect with the two threads. A stop plate is provided on the input tube located outside the tank. The threaded connection between the input tube and the pipe connector forms a seal, and the stop plate limits the screwing depth of the input tube while facilitating tightening of the input tube.
[0011] Furthermore, the tank body includes a straight cylindrical section and a conical section, which are integrally formed. The base ring pipe is located at the junction of the straight cylindrical section and the conical section, and the flushing branch pipe is located on the upper side of the base ring pipe and extends to the upper end of the straight cylindrical section. That is, the flushing holes on the flushing branch pipe flush the inner wall of the straight cylindrical section of the tank body, while the flushing holes on the base ring pipe flush the inner wall of the conical section of the tank body, forming a complete coverage and improving flushing efficiency and flushing quality.
[0012] Furthermore, the cleaning assembly also includes a scrubbing assembly, which comprises a drive motor, a scrubbing shaft, a scrubbing support arm, and a scrubbing rod. The drive motor is mounted on the end cap, and the scrubbing shaft is located at its output end. The lower end of the scrubbing shaft extends into the tank body and is detachably connected to the scrubbing support arm for easy assembly and disassembly. The scrubbing rod is located at the end of the scrubbing support arm away from the scrubbing shaft. The scrubbing rod is equipped with dense bristles and extends into the gap between the cleaning cage and the inner wall of the tank to scrub the inner wall of the tank and the flushing branch pipes. The combination of rinsing and scrubbing further improves the cleaning effect on the inner wall of the tank. At the same time, the rinsing water flow from the cleaning cage and the flushing branch pipes help clean the scrubbing rod and its bristles, while the bristles on the scrubbing rod help clean most of the outer surface of the flushing branch pipes.
[0013] Furthermore, the scrubbing assembly also includes a brush cylinder, with the brush cylinder detachably connected to the scrubbing rod. The outer surface of the brush cylinder is provided with bristles. The bristles are designed as a single unit and then assembled with the scrubbing rod, making them easy to replace due to their tendency to wear out.
[0014] Furthermore, the scrubbing assembly also includes a limiting cylinder, on the outer wall of which the scrubbing support arm is mounted. Corresponding through holes are provided on the lower ends of the limiting cylinder and the scrubbing shaft. The limiting cylinder is fitted onto the lower end of the scrubbing shaft, and bolts are inserted into the through holes to secure the limiting cylinder and the scrubbing shaft. This allows the lower end of the scrubbing shaft to be detachably connected to the scrubbing support arm for easy use.
[0015] Furthermore, brushing arms are respectively provided on opposite sides of the limiting cylinder to form a symmetrical brushing structure, thereby improving cleaning efficiency.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This invention utilizes a cleaning cage structure comprised of an inlet pipe, a base ring pipe, and a flushing branch pipe to automatically clean the inner wall of the evaporator. It allows for both rapid cleaning after a single use and long-term cleaning after a period of use, simplifying the cleaning process for operators and ensuring thorough cleaning of the evaporator's inner wall. Furthermore, the cleaning cage instantly discharges water to essentially cover the entire inner wall of the tank, simultaneously cleaning most of the inner wall without requiring reciprocating motion. This results in higher efficiency, lower water consumption, greater energy savings, and more complete cleaning of the evaporator's inner wall.
[0018] This invention further improves the cleaning effect and efficiency of the inner wall of the evaporator by setting up a brushing component in conjunction with a cleaning cage structure. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a front view schematic diagram of the overall structure of this utility model.
[0021] Figure 2 This is a schematic diagram of the front view of the evaporator of this utility model.
[0022] Figure 3 This is a schematic cross-sectional view of the evaporator of this utility model.
[0023] Figure 4 This is a schematic diagram of the cleaning cage of this utility model.
[0024] Figure 5 This is a schematic diagram of the brushing component of this utility model.
[0025] In the diagram: 1. Condenser; 2. Receiving tank; 3. First-effect heater; 4. Second-effect heater; 5. First-effect evaporator; 6. Second-effect evaporator; 7. Tank body; 8. End cap; 9. Cleaning cage; 10. Inlet pipe; 11. Base ring pipe; 12. Flushing branch pipe; 13. Pipe connector; 14. One-way nozzle; 15. Inlet connector; 16. Stop plate; 17. Straight section; 18. Conical section; 19. Brush assembly; 20. Drive motor; 21. Brush shaft; 22. Brush support arm; 23. Brush rod; 24. Brush bristles; 25. Brush cylinder; 26. Limiting cylinder; 27. Bolt assembly. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Example 1
[0029] like Figure 1-2 As shown, the EGCG and caffeine compound concentration device provided in this embodiment includes a heater, an evaporator, a condenser 1, and a receiving tank 2 connected in series. The heater includes a first-effect heater 3 and a second-effect heater 4, and the evaporator includes a first-effect evaporator 5 and a second-effect evaporator 6. It should be noted that the above is a brief description of a common double-effect evaporator in the prior art, which usually includes other connection structures, control structures, etc. This embodiment only needs to use a conventional double-effect evaporator, and its other more specific structures will not be described in detail. Structures not specifically described in the text can be set according to the existing conventional double-effect evaporator structure. The concentration device provided in this embodiment mainly also includes a cleaning component, which is set in the evaporator. The evaporator includes a tank body 7 and a head 8 installed on the upper end of the tank body 7. The two are detachably connected, for example, by bolt connection, snap connection, etc., using existing technology. The evaporator is set as a split structure of head 8 and tank body 7, which facilitates the disassembly and assembly of the cleaning component. A sealing ring can be set between head 8 and tank body 7 to improve sealing performance.
[0030] More specifically, such as Figure 3-4As shown, the cleaning assembly includes a cleaning cage 9 disposed within the tank 7, with an annular gap between the cleaning cage 9 and the inner wall of the tank 7. The cleaning cage 9 includes an input pipe 10, a base ring pipe 11, and flushing branch pipes 12. Four input pipes 10 are disposed on the base ring pipe 11, and the outer ends of the four input pipes 10 can share a single pump body (i.e., connected to the output end of a single pump body). The input pipes 10 are detachably connected to and communicate with the base ring pipe 11. For example, an input connector 15 communicating with the base ring pipe 11 can be disposed on the outside of the base ring pipe 11, and the input connector 15 is threadedly connected to the input pipes 10. The tank body 7 is provided with a pipe connector 13 corresponding to the input pipe 10. The input pipe 10 is inserted into the pipe connector 13 and extends out of the tank body 7. A pump body (not shown in the attached figure, a conventional liquid pump can be installed) and a clean water source are installed on the input pipe 10 extending out of the tank body 7. The base ring pipe 11 is circumferentially arrayed with multiple flushing branch pipes 12 that are respectively connected to it. The flushing branch pipes 12 form a cage-like structure. Multiple flushing holes are provided on the flushing branch pipes 12 and the base ring pipe 11 respectively. The flushing holes are located on the outside of the flushing branch pipes 12 and are arrayed along their length. Multiple flushing holes are provided on the outside and bottom of the base ring pipe 11 respectively and are arranged circumferentially along the base ring pipe 11.
[0031] More specifically, the tank body 7 includes a straight cylindrical section 17 and a conical section 18, which are integrally formed (this is a conventional structural feature of the middle and lower parts of an evaporator). The base ring pipe 11 is located at the junction of the straight cylindrical section 17 and the conical section 18, and the flushing branch pipe 12 is located on the upper side of the base ring pipe 11 and extends to the upper end of the straight cylindrical section 17.
[0032] Example 2
[0033] This embodiment is a further optimization of the structure of the cleaning cage 9 based on embodiment 1. For example, a one-way nozzle 14, which can be a multi-jet nozzle, is installed on the flushing hole. Another example is that four input connectors 15, communicating with the inner cavity of the base ring tube 11, are arranged in a circumferential array on the outer side of the base ring tube 11. The end of each input connector 15 away from the base ring tube 11 abuts against the inner wall of the tank body 7. Internal threads are provided on both the input connectors 15 and the pipe connectors 13, and external threads are provided on the input pipe 10 for threaded connection with both. A stop plate 16 is provided on the input pipe 10 located outside the tank body 7.
[0034] Another feasible structural configuration is to provide threads only on the input connector 15 and to provide an elastic sealing ring on the inner surface of the pipe connector 13; or it can be to provide threads only on the input connector 15 and to provide PTFE tape (also known as water-based adhesive tape) on the section of pipe connecting the input pipe 10 and the pipe connector 13.
[0035] Example 3
[0036] This embodiment is a further optimization and refinement of the cleaning component structure based on Embodiment 2. Specifically, the cleaning component further includes a brushing component 19, such as... Figure 3 and Figure 5 As shown, the scrubbing assembly 19 includes a drive motor 20, a scrubbing shaft 21, a scrubbing support arm 22, and a scrubbing rod 23. The drive motor 20 is mounted on the end cap 8, and the scrubbing shaft 21 is mounted on its output end. It should be noted that the connection and installation of the two generally involve the use of couplings, bearings, etc., as well as the longitudinal fixing of the scrubbing shaft 21, but these are all existing technologies that can be directly adopted and will not be described in detail here. The lower end of the scrubbing shaft 21 extends into the tank body 7 and is detachably connected to the scrubbing support arm 22. This detachable structure can be, for example, by providing a limiting cylinder 26 on the scrubbing assembly 19. The scrubbing support arm 22 is mounted on the outer wall of the limiting cylinder 26. Corresponding through holes are opened on the lower ends of the limiting cylinder 26 and the scrubbing shaft 21. The limiting cylinder 26 is sleeved on the lower end of the scrubbing shaft 21, and bolt assemblies 27 are inserted in the through holes to fix the limiting cylinder 26 and the scrubbing shaft 21, thereby fixing the scrubbing support arm 22. A scrubbing arm 22 is provided on each opposite side of the limiting cylinder 26. Alternatively, three or even four scrubbing arms 22 can be arranged in a circumferential array around the limiting cylinder 26.
[0037] More specifically, the brushing arm 22 is equipped with a brushing rod 23 at the end away from the brushing shaft 21. The brushing rod 23 is provided with dense bristles 24. The brushing rod 23 extends into the annular gap between the cleaning cage 9 and the inner wall of the tank 7 to brush the inner wall of the tank 7 and the rinsing branch pipe 12. To facilitate the replacement of the bristles 24, a brush cylinder 25 is added. The brush cylinder 25 is fitted over the brushing rod 23, and the two are detachably connected. For example, if a soft brush cylinder 25 is used, it can be used with an interference fit or even a binding method. If a hard brush cylinder 25 is used, it can be fixed with screws or pins. The outer surface of the brush cylinder 25 is provided with the bristles 24.
[0038] In most cases, it is sufficient to install the cleaning cage 9 structure inside the evaporator for cleaning after a single concentration or simple cleaning after long-term concentration (another possible use of the cleaning cage 9 is to introduce high-temperature steam to assist concentration). When it is necessary to change the type of concentrated material or when there is stubborn dirt on the inner wall of the tank 7, install the scrubbing component 19 in conjunction with the cleaning cage 9 structure to perform a deep cleaning of the evaporator.
[0039] It should be noted that the scrubbing assembly 19 only needs to be installed on the original evaporator port. When not in use, it can be removed, and then the upper port can be sealed with a sealing plate. Some threaded structures are not shown in the attached diagram.
[0040] Although this application is based on the inventor's improvements and innovations in the process of EGCG and caffeine compound concentration, it is understood that its cleaning components are applicable not only to dual-effect condensers but also to single-effect condensers. Furthermore, this condenser is not only suitable for EGCG and caffeine compound concentration but also for the concentration of other conventional materials.
[0041] Furthermore, in the description of this utility model, unless otherwise stated, the terms "multiple," "multiple roots," and "multiple groups" mean two or more. It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model.
[0042] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. An equipment for concentrating EGCG and caffeine, comprising a heater, an evaporator, a condenser (1), and a receiving tank (2) connected in series, wherein the heater comprises a first-effect heater (3) and a second-effect heater (4), and the evaporator comprises a first-effect evaporator (5) and a second-effect evaporator (6), characterized in that: It also includes a cleaning assembly disposed in the evaporator; the evaporator includes a tank body (7) and a head (8) installed on the upper end of the tank body (7), which are detachably connected; The cleaning assembly includes a cleaning cage (9) disposed within a tank (7). The cleaning cage (9) includes an inlet pipe (10), a base ring pipe (11), and a flushing branch pipe (12). At least two inlet pipes (10) are disposed on the base ring pipe (11), and the inlet pipes (10) are detachably connected to and communicate with the base ring pipe (11). The tank (7) is provided with a pipe connector (13) corresponding to the inlet pipes (10), and the inlet pipes (10) are inserted into the pipe connectors (13) and... A pump body is installed on the input pipe (10) extending from the tank body (7); multiple flushing branch pipes (12) connected to the base ring pipe (11) are arranged in a circumferential array. Multiple flushing holes are provided on the flushing branch pipes (12) and the base ring pipe (11). The flushing holes are arranged on the outside of the flushing branch pipes (12) and in an array along their length. Multiple flushing holes are provided on the outside and bottom of the base ring pipe (11) and are arranged in a circumferential array along the base ring pipe (11).
2. The EGCG and caffeine co-formulated concentrate device of claim 1, wherein: A one-way nozzle (14) is installed on the flushing hole.
3. The EGCG and caffeine co-formulated concentrate apparatus of claim 2, wherein: An input connector (15) communicating with the base ring tube (11) is provided on the outside of the base ring tube (11), and the input connector (15) is threadedly connected to the input tube (10).
4. The EGCG and Caffeine complexed concentrate apparatus as claimed in claim 3 wherein: At least two input connectors (15) communicating with the inner cavity of the base ring tube (11) are arranged in a circumferential array on the outer side of the base ring tube (11). The end of the input connector (15) away from the base ring tube (11) abuts against the inner wall of the tank body (7). The input connector (15) and the pipe connector (13) are respectively provided with internal threads. The input pipe (10) is provided with external threads that are threadedly connected to the two. The input pipe (10) located outside the tank body (7) is provided with a stop plate (16).
5. The EGCG and Caffeine complexed concentrate apparatus as claimed in claim 4 wherein: The tank body (7) includes a straight cylindrical part (17) and a conical part (18), which are integrally formed. The base ring pipe (11) is located at the junction of the straight cylindrical part (17) and the conical part (18). The flushing branch pipe (12) is located on the upper side of the base ring pipe (11) and extends to the upper end of the straight cylindrical part (17).
6. The EGCG and caffeine co-formulated concentrate device of any one of claims 1-5, wherein: The cleaning assembly also includes a scrubbing assembly (19), which includes a drive motor (20), a scrubbing shaft (21), a scrubbing support arm (22), and a scrubbing rod (23). The drive motor (20) is mounted on the end cap (8), and the output end of the drive motor is provided with the scrubbing shaft (21). The lower end of the scrubbing shaft (21) extends into the tank body (7) and is detachably connected to the scrubbing support arm (22). The end of the scrubbing support arm (22) away from the scrubbing shaft (21) is provided with the scrubbing rod (23). The scrubbing rod (23) is provided with dense bristles (24). The scrubbing rod (23) extends into the gap between the cleaning cage (9) and the inner wall of the tank body (7) to scrub the inner wall of the tank body (7) and the flushing branch pipe (12).
7. The EGCG and Caffeine complexed concentrate apparatus of claim 6, wherein: The brushing assembly (19) further comprises a brush barrel (25), the brushing rod (23) is sleeved with the brush barrel (25), and the two are detachably connected; and the outer surface of the brush barrel (25) is provided with the brush (24).
8. The EGCG and Caffeine complexed concentrate apparatus as claimed in claim 7 wherein: The brushing assembly (19) further comprises a limiting barrel (26), the limiting barrel (26) is installed on the outer wall of the brushing arm (22), the limiting barrel (26) and the lower end of the brushing shaft (21) are provided with corresponding through holes, the limiting barrel (26) is sleeved on the lower end of the brushing shaft (21) and the bolt assembly (27) is arranged in the through hole to fix the limiting barrel (26) and the brushing shaft (21).
9. The EGCG and Caffeine complexed concentrate apparatus of claim 8, wherein: The opposite side of the limiting barrel (26) is respectively provided with the brushing arm (22).