Tea pigment production line

Abstract

The utility model discloses a tea pigment production line. The tea pigment production line comprises a rack; the multifunctional extraction tank is arranged on the rack; the stirring reaction kettle is communicated with the multifunctional extraction tank; the concentration evaporator is communicated with the stirring reaction kettle; the reflux reaction kettle is communicated with the concentration evaporator; the crystallizing tank is communicated with the reflux reaction kettle; the dissolving reaction kettle is communicated with the crystallizing tank; and the spray drying tower is communicated with the dissolution reaction kettle. The multifunctional extraction tank is used for decocting tea leaves so as to extract tea juice from the tea leaves. The tea pigment is purified through concentration and reflux processes, separation of effective substances is facilitated, reaction purification is performed again in the dissolution reaction kettle before drying, and tea pigment paste liquid with higher tea pigment purity is obtained. And feeding the tea pigment paste liquid obtained in the dissolving reaction kettle into a spray drying tower, and drying in the spray drying tower to obtain the finished product tea pigment.

Description

Technical Field

[0001] This application relates to the field of tea pigment production technology, and in particular to a tea pigment production line. Background Technology

[0002] Tea pigments are a mixture of water-soluble pigments formed by the continuous oxidation and polymerization of polyphenolic compounds, represented by catechins, in tea leaves. Tea pigments can be used in the food and pharmaceutical fields. Tea pigment capsules have the effects of clearing the head and eyes, resolving phlegm and reducing fat. They are used for symptoms such as dizziness, chest tightness and chest pain, hyperlipidemia, coronary heart disease, angina pectoris and cerebral infarction caused by phlegm and blood stasis.

[0003] In related technologies, the production method of tea pigment involves using tea leaves as raw material, and preparing tea pigment crystals through decoction extraction, alkalization concentration, and precipitation. However, the above methods have low extraction rates of raw materials and low purity of tea pigments.

[0004] Therefore, it is necessary to propose a tea pigment production line to improve the purity of tea pigment, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This application provides a tea pigment production line, aiming to solve the problem that the existing methods for producing tea pigment use tea leaves as raw materials, which involve boiling and extracting, alkalizing and concentrating, and then using precipitation to prepare tea pigment crystals. However, the above methods have a low extraction rate of the raw materials.

[0006] To achieve the above objectives, this application proposes a tea pigment production line, comprising: a frame; a multi-functional extraction tank mounted on the frame; a stirred reaction vessel connected to the multi-functional extraction tank; a concentrator evaporator connected to the stirred reaction vessel; a reflux reaction vessel connected to the concentrator evaporator; a crystallization tank connected to the reflux reaction vessel; a dissolving reaction vessel connected to the crystallization tank; and a spray drying tower connected to the dissolving reaction vessel.

[0007] In some embodiments, the system further includes: a pure water metering tank connected to a multi-functional extraction tank; a first condenser connected to the multi-functional extraction tank; and a storage tank connected to the first condenser and the multi-functional extraction tank.

[0008] In some embodiments, the system further includes: a tea juice metering tank connected to a multi-functional extraction tank; a tea juice delivery pump connected to the tea juice metering tank; a tea juice filter connected to the tea juice delivery pump; and a tea juice metering storage tank connected to the tea juice filter and a stirred reaction vessel.

[0009] In some embodiments, the system further includes: a first liquid delivery pump connected to a stirred reactor; and a first liquid metering storage tank connected to the first liquid delivery pump and a first liquid metering storage tank connected to a concentrator evaporator.

[0010] In some embodiments, the device further includes: a liquid metering tank connected to a reflux reactor; and a second condenser connected to a concentrator evaporator.

[0011] In some embodiments, the system further includes: a third condenser connected to a reflux reactor; a condenser connected to a reflux reactor; a second liquid delivery pump connected to the condenser; a liquid filter connected to the second liquid delivery pump; and a second liquid metering storage tank connected to the liquid filter and a crystallizer.

[0012] This application proposes a tea pigment production line, comprising: a frame; a multi-functional extraction tank mounted on the frame; a stirred reaction vessel connected to the multi-functional extraction tank; a concentrator / evaporator connected to the stirred reaction vessel; a reflux reaction vessel connected to the concentrator / evaporator; a crystallization tank connected to the reflux reaction vessel; a dissolving reaction vessel connected to the crystallization tank; and a spray drying tower connected to the dissolving reaction vessel. The multi-functional extraction tank is used to decoct tea leaves, thereby extracting tea juice from the tea leaves. The tea juice flows into the stirred reaction vessel, where it is oxidized. The liquid flowing out of the stirred reaction vessel enters the concentrator / evaporator, where boiling the liquid removes water, achieving a water reduction effect. The concentrated liquid flows into the reflux reaction vessel, where ethanol is added to the concentrate until the alcohol content is 40% v / v to 70% v / v, the pH is adjusted to 1 to 4, and the reflux reaction vessel is heated for reflux extraction for 0.5 to 2 hours. To purify tea pigments and facilitate the precipitation of effective substances, the resulting tea pigment paste, after reflux, is discharged into the crystallization tank along with ethanol. Due to the difference in solubility of tea polyphenols and other impurities in solvents such as water and ethanol, tea polyphenols crystallize within the crystallization tank. The crystals obtained in the crystallization tank flow into the dissolving reactor along with the purification reagent, where they react and purify to obtain a tea pigment paste with higher purity. The tea pigment paste obtained from the dissolving reactor is then sent to a spray drying tower for drying to obtain the finished tea pigment product. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0014] Figure 1 This is a schematic diagram of the structure of a tea pigment production line according to one embodiment of this application;

[0015] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0016] Figure 3 for Figure 1 A magnified view of part B in the middle.

[0017] In the diagram: 1. Frame; 2. Multifunctional extraction tank; 3. Tea juice metering tank; 4. Tea juice transfer pump; 5. Stirring reaction vessel; 6. First medicine transfer pump; 7. Medicine juice metering tank; 8. Reflux reaction vessel; 9. Medicine filter; 10. Crystallization tank; 11. Dissolving reaction vessel; 12. Paste transfer pump; 13. Spray drying tower; 14. Second medicine juice metering and storage tank; 15. Cooling water pool; 16. Third condenser; 17. Second condenser; 18. Concentrated evaporator; 19. First medicine juice metering and storage tank; 20. Tea juice metering and storage tank; 21. Tea juice filter; 22. First condenser; 23. Storage tank; 24. Pure water metering tank; 25. Second medicine transfer pump; 26. Condensation pipeline; 27. Condensation tank; 28. Gas-liquid separator. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0020] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0021] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0022] See Figure 1 As shown, this application proposes a tea pigment production line, comprising: a frame 1; a multi-functional extraction tank 2, which is mounted on the frame 1; a stirred reaction vessel 5, which is connected to the multi-functional extraction tank 2; a concentrator evaporator 18, which is connected to the stirred reaction vessel 5; a reflux reaction vessel 8, which is connected to the concentrator evaporator 18; a crystallization tank 10, which is connected to the reflux reaction vessel 8; a dissolving reaction vessel 11, which is connected to the crystallization tank 10; and a spray drying tower 13, which is connected to the dissolving reaction vessel 11.

[0023] Among them, frame 1 is the structural foundation of a tea pigment production line, used to support structures such as multi-functional extraction tank 2, stirring reaction vessel 5, and concentration evaporator 18. Other structures on a tea pigment production line are directly or indirectly connected to frame 1.

[0024] The multi-functional extraction tank 2 is used to brew tea leaves to extract tea juice. The multi-functional extraction tank 2 is equipped with a feed inlet. Tea leaves and purified water are added into the multi-functional extraction tank 2 through the feed inlet. The multi-functional extraction tank 2 is heated to brew the tea leaves and obtain tea juice.

[0025] In this process, tea juice flows into stirred reactor 5, where it is oxidized. The pH of the tea juice is adjusted to 8-9 using an alkaline solution. During oxidation, tea polyphenols undergo a series of changes. First, under the action of enzymes, tea polyphenols oxidize and polymerize to form theaflavins, then further oxidize and polymerize to form thearubigins, and finally theabrownins. During this process, the amount of tea polyphenols decreases significantly, while the content of tea pigments increases significantly.

[0026] The liquid medicine flowing out of the stirred reactor 5 enters the concentrator evaporator 18. The concentrator evaporator 18 boils the liquid medicine to remove water, thus reducing its concentration. The concentrated liquid flows into the reflux reactor 8, where ethanol is added to bring the alcohol content to 40% v / v–70% v / v. The pH is adjusted to 1–4, and the reflux reactor 8 is heated for reflux extraction for 0.5–2 hours. This process purifies the tea pigment, facilitates the precipitation of active ingredients, reduces the impurity content in the final tea pigment crystals, and improves the purity of the tea pigment.

[0027] The tea pigment paste and ethanol produced after reflux are discharged into the crystallization tank 10 together. Due to the difference in solubility of tea polyphenols and other impurities in solvents such as water and ethanol, tea polyphenols will crystallize in the crystallization tank 10.

[0028] In this process, the crystals obtained in the crystallization tank 10 flow into the dissolving reaction vessel 11 along with the purification agent. Heating the dissolving reaction vessel 11 facilitates the dissolution of the crystals and provides conditions for their reaction with the purification agent, effectively purifying the crystals and obtaining a tea pigment paste with higher purity. The addition of the purification agent is mainly to remove soluble sugars (starch, pectin, monosaccharides and disaccharides) or other impurities from the crystals. The purification agent can be a combination of oxidases of various soluble sugars, such as one or more combinations of amylase, glucose oxidase, pectin esterase, etc. No specific restrictions are placed on the type of purification agent, as long as it can effectively remove impurities from the crystals.

[0029] This application also includes a paste delivery pump 12, which is connected to a dissolving reactor 11 and is used to pump tea pigment paste into a spray drying tower 13.

[0030] The tea pigment paste obtained from the dissolving reactor 11 is sent to the spray drying tower 13 and dried in the spray drying tower 13 to obtain the finished tea pigment.

[0031] Specifically, the multi-functional extraction tank 2 is used to decoct tea leaves to extract tea juice. The tea juice flows into the stirred reaction vessel 5, where it is oxidized. The liquid flowing out of the stirred reaction vessel 5 enters the concentrator evaporator 18, where the liquid is boiled to remove water, thus reducing its concentration. The concentrated liquid flows into the reflux reaction vessel 8, where ethanol is added to bring the alcohol content to 40% v / v to 70% v / v, and the pH is adjusted to 1 to 4. The reflux reaction vessel 8 is then heated for reflux extraction for 0.5 to 2 hours to purify the tea pigments and facilitate the precipitation of effective substances. The resulting tea pigment paste and ethanol are discharged into the crystallization tank 10. Due to the difference in solubility of tea polyphenols and other impurities in solvents such as water and ethanol, tea polyphenol crystals will form in the crystallization tank 10. The crystals obtained in the crystallization tank 10 flow into the dissolving reactor 11 along with the purification agent. The reaction and purification occur within the dissolving reactor 11, yielding a tea pigment paste with higher purity. The tea pigment paste obtained from the dissolving reactor 11 is then sent to the spray drying tower 13 for drying to obtain the finished tea pigment product.

[0032] See Figure 1 and Figure 2 As shown, in some embodiments, the system further includes: a pure water metering tank 24, which is connected to a multi-functional extraction tank 2. The pure water metering tank 24 stores pure water, and a solenoid valve is installed on the connecting pipe between the pure water metering tank 24 and the multi-functional extraction tank 2. The pure water metering tank 24 is used to provide pure water to the multi-functional extraction tank 2. A first condenser 22 is connected to the multi-functional extraction tank 2. During the tea brewing process, the multi-functional extraction tank 2 generates a large amount of water vapor, which condenses into pure water in the first condenser 22. A storage tank 23 is connected to the first condenser 22 and the multi-functional extraction tank 2. The pure water condensed in the first condenser 22 can flow back into the multi-functional extraction tank 2 to provide pure water to the multi-functional extraction tank 2. A solenoid valve is installed on the connecting pipe between the storage tank 23 and the multi-functional extraction tank 2.

[0033] See Figure 1As shown, in some embodiments, the system further includes: a tea juice metering tank 3, which is connected to a multi-functional extraction tank 2. After the tea is brewed, the tea juice flows into the tea juice metering tank 3 through a pipe, while the tea residue is discharged from the discharge port of the multi-functional extraction tank 2. A solenoid valve is installed on the connecting pipe between the tea juice metering tank 3 and the multi-functional extraction tank 2; a tea juice delivery pump 4, which is connected to the tea juice metering tank 3 and is used to pump the tea juice, providing power for its flow. A solenoid valve is installed on the connecting pipe between the tea juice delivery pump 4 and the tea juice metering tank 3; and a tea juice filter 21. A tea juice filter 21 is connected to a tea juice delivery pump 4. The tea juice filter 21 filters the tea juice, intercepting any remaining tea residue. The tea residue intercepted by the tea juice filter 21, along with the tea residue discharged from the multi-functional extraction tank 2, can be reintroduced into the multi-functional extraction tank 2 for further tea juice extraction, thus improving the utilization rate of the raw materials. A solenoid valve is installed on the connecting pipe between the tea juice filter 21 and the tea juice delivery pump 4. A tea juice metering and storage tank 20 is connected to the tea juice filter 21 and also to a stirred reaction vessel 5. The tea juice metering and storage tank 20 is used to measure the amount of tea juice. A solenoid valve is installed on the connecting pipe between the tea juice metering and storage tank 20 and the tea juice filter 21, and also on the connecting pipe between the tea juice metering and storage tank 20 and the stirred reaction vessel 5.

[0034] See Figure 1 As shown, in some embodiments, the system further includes: a first liquid delivery pump 6, which is connected to a stirred reaction vessel 5, into which tea juice flows and oxidizes; a solenoid valve is installed on the connecting pipeline between the first liquid delivery pump 6 and the stirred reaction vessel 5; and a first liquid metering storage tank 19, which is connected to the first liquid delivery pump 6 and a concentrator evaporator 18, through which the oxidized liquid is pumped to the first liquid metering storage tank 19. A solenoid valve is installed on the connecting pipeline between the first liquid metering storage tank 19 and the first liquid delivery pump 6, and on the connecting pipeline between the first liquid metering storage tank 19 and the concentrator evaporator 18.

[0035] See Figure 1 As shown, in some embodiments, the system further includes: a liquid metering tank 7, which is connected to a concentrator evaporator 18 and a reflux reactor 8; a solenoid valve is installed on the connecting pipe between the liquid metering tank 7 and the reflux reactor 8; and a second condenser 17, which is connected to the concentrator evaporator 18. Water vapor generated during the concentration process enters the second condenser 17 and is condensed into water. The water produced by the second condenser 17 can be reused to reduce the economic cost of tea pigment production.

[0036] See Figure 1 and Figure 3 As shown, in some embodiments, it further includes: a third condenser 16, which is connected to the reflux reactor 8; there are two connecting pipes between the third condenser 16 and the reflux reactor 8, the first pipe being a steam pipe, through which steam in the reflux reactor 8 flows into the third condenser 16 and condenses to form reflux liquid, which flows back into the reflux reactor 8 through the second pipe. A solenoid valve is installed on the second pipe.

[0037] A condenser 27 is connected to a reflux reactor 8. A connecting pipe is provided between the condenser 27 and the reflux reactor 8, and a solenoid valve is installed on this connecting pipe. After reflux for 0.5h to 2h, the reflux liquid and steam in the reflux reactor 8 flow into the condenser 27 along the connecting pipe. A condenser pipe 26 is provided inside the condenser 27. The condenser pipe 26 is used to cool the reflux liquid and the steam discharged from the reflux reactor 8.

[0038] In this embodiment, a cooling water tank 15 is also included, and a condenser pipe 26 is connected to the cooling water tank 15. Preferably, a solenoid valve and a condenser pump are provided on the condenser pipe 26. After the cooling water in the condenser pipe 26 flows out of the condenser tank 27, it is cooled again by the cooling equipment and then flows back to the cooling water tank 15 after being cooled again.

[0039] A second liquid delivery pump 25 is connected to a condenser tank 27; the bottom of the condenser tank 27 is connected to the second liquid delivery pump 25 via a connecting pipe, which is equipped with a solenoid valve. A liquid filter 9 is also connected to the second liquid delivery pump 25.

[0040] In this embodiment, a gas-liquid separator 28 is also included. The gas-liquid separator 28 is connected to a second pharmaceutical solution delivery pump 25. The reflux liquid, after being condensed in the condenser 27, flows into the gas-liquid separator 28 under the drive of the second pharmaceutical solution delivery pump 25. The gas-liquid separator 28 separates the reflux liquid, completely separating it from the steam. The reflux liquid flows into the pharmaceutical solution filter 9, and the steam flows back into the reflux reaction vessel 8. A solenoid valve is installed on the connecting pipe between the gas-liquid separator 28 and the pharmaceutical solution filter 9, and a reflux valve is installed on the connecting pipe between the gas-liquid separator 28 and the reflux reaction vessel 8.

[0041] The second drug solution metering and storage tank 14 is connected to the drug solution filter 9 and the crystallization tank 10. The reflux liquid after passing through the drug solution filter 9 enters the second drug solution metering and storage tank 14 and flows into the crystallization tank 10. A solenoid valve is installed on the connecting pipe between the second drug solution metering and storage tank 14 and the drug solution filter 9.

[0042] In this application, all solenoid valves are controlled via a control terminal or manually to ensure the stable operation of the reflux equipment. The control terminal is a PLC or CPU. All connections in this application are achieved through pipelines. This application also includes multiple pumping devices to provide power for the fluid or steam. Due to the large number of pumping devices, they are not all shown in this application.

[0043] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A tea pigment production line, characterized in that, include: Rack (1); A multi-functional extraction tank (2) is mounted on the frame (1); A stirred reactor (5) is connected to the multifunctional extraction tank (2). A concentrator (18) is connected to the stirred reactor (5). Reflux reactor (8), which is connected to the concentrator evaporator (18); Crystallization tank (10), which is connected to the reflux reactor (8); Dissolution reactor (11), which is connected to the crystallization tank (10); A spray drying tower (13) is connected to the dissolution reactor (11).

2. The tea pigment production line according to claim 1, characterized in that, Also includes: Pure water metering tank (24), which is connected to the multifunctional extraction tank (2); The first condenser (22) is connected to the multifunctional extraction tank (2). Storage tank (23), which is connected to the first condenser (22) and the storage tank (23) is connected to the multifunctional extraction tank (2).

3. The tea pigment production line according to claim 1, characterized in that, Also includes: Tea juice measuring tank (3), the tea juice measuring tank (3) is connected to the multifunctional extraction tank (2); Tea juice delivery pump (4), the tea juice delivery pump (4) is connected to the tea juice metering tank (3); Tea filter (21), the tea filter (21) is connected to the tea delivery pump (4); A tea juice metering storage tank (20) is connected to the tea juice filter (21) and the tea juice metering storage tank (20) is connected to the stirred reaction vessel (5).

4. A tea pigment production line according to claim 1, characterized in that, Also includes: The first liquid delivery pump (6) is connected to the stirred reactor (5). The first liquid metering storage tank (19) is connected to the first liquid delivery pump (6) and the first liquid metering storage tank (19) is connected to the concentrator (18).

5. A tea pigment production line according to claim 1, characterized in that, Also includes: A liquid metering tank (7) is connected to the reflux reactor (8). The second condenser (17) is connected to the evaporator (18).

6. A tea pigment production line according to claim 1, characterized in that, Also includes: The third condenser (16) is connected to the reflux reactor (8). Condenser (27), the condenser (27) being connected to the reflux reactor (8); The second liquid delivery pump (25) is connected to the condenser (27); A liquid medicine filter (9) is connected to the second liquid medicine delivery pump (25); The second drug solution metering storage tank (14) is connected to the drug solution filter (9) and the second drug solution metering storage tank (14) is connected to the crystallization tank (10).

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