Backflow processing equipment for tea pigment production

Abstract

The utility model discloses reflux processing equipment for tea pigment production, which comprises a reflux reaction kettle provided with a feed inlet, and a mixed solution of concentrated tea leaf extract and ethanol flows into the reflux reaction kettle from the feed inlet; the jacket is arranged on the peripheral surface of the reflux reaction kettle, and a heating space is arranged between the jacket and the reflux reaction kettle; and the reflux reaction kettle is communicated with the condenser. The method comprises the following steps: adding ethanol into a concentrated solution obtained from tea leaves until the alcohol content is 40-70% v / v, adjusting the pH value to 1-4, adding into a reflux reaction kettle from a feeding hole, heating in the reflux reaction kettle, and carrying out reflux extraction for 0.5-2 hours. The tea pigment is extracted and stored, effective substances can be separated out easily, the content of impurities in finally obtained tea pigment crystals is reduced, and the purity of the tea pigment is improved.

Description

Technical Field

[0001] This application relates to the field of reflux processing technology, and in particular to a reflux processing device for the production of tea pigments. 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 result in low purity of tea pigment crystals and a high level of impurities.

[0004] Therefore, it is necessary to propose a reflux processing device for tea pigment production 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 reflux processing device for the production of tea pigments, aiming to solve the problem that the existing methods for producing tea pigments use tea leaves as raw materials, which involve boiling and extracting, alkalizing and concentrating, and then precipitating to obtain tea pigment crystals. However, the above methods result in low purity of the tea pigment crystals and a high level of impurities.

[0006] To achieve the above objectives, this application proposes a reflux processing device for tea pigment production, comprising: a reflux reactor with an inlet, wherein a mixture of concentrated tea extract and ethanol flows into the reflux reactor from the inlet; a jacket disposed on the outer circumferential surface of the reflux reactor, wherein a heating space is provided between the jacket and the reflux reactor; and a condenser connected to the reflux reactor.

[0007] In some embodiments, the device further includes: a steam pipe disposed in the jacket and communicating with the heating space; and a steam trap disposed in the jacket and communicating with the heating space.

[0008] In some embodiments, the device further includes: a cooler connected to a reflux reactor; and a condensation pipe disposed within the cooler.

[0009] In some embodiments, the device further includes: a liquid medicine delivery pump connected to a cooler; a gas-liquid separator connected to the liquid medicine delivery pump and the cooler; and a filter connected to the gas-liquid separator.

[0010] In some embodiments, the device further includes: a first pressure sensor, wherein the first pressure sensor is provided on the connection circuit between the liquid delivery pump and the gas-liquid separator, and the liquid delivery pump is connected to a filter.

[0011] In some embodiments, the device further includes: a meter connected to a filter; and a level sensor disposed on the meter.

[0012] This application proposes a reflux processing device for tea pigment production, comprising: a reflux reactor with an inlet, into which a mixture of concentrated tea extract and ethanol flows into the reflux reactor; a jacket disposed on the outer circumference of the reflux reactor, with a heating space between the jacket and the reflux reactor; and a condenser connected to the reflux reactor. Ethanol is added to the concentrated extract obtained from the tea leaves until the alcohol content is 40% v / v to 70% v / v, and the pH is adjusted to 1 to 4. The ethanol is then added to the reflux reactor through the inlet, and the reactor is heated for reflux extraction for 0.5 to 2 hours. This process extracts tea pigment, facilitating the precipitation of effective substances and reducing the impurity content in the final tea pigment crystals, thereby improving the purity of the tea pigment. 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 reflux processing device for producing tea pigments according to one embodiment of this application.

[0015] In the diagram: 1. Reflux reactor; 2. Temperature sensor; 3. Second pressure sensor; 4. Feed inlet; 5. Condenser; 6. Solenoid valve; 7. Gas-liquid separator; 8. Cooling water tank; 9. Liquid level sensor; 10. Meter; 11. Filter; 12. First pressure sensor; 13. Chemical delivery pump; 14. Condensation pipe; 15. Cooler; 16. Steam trap; 17. Jacket; 18. Third pressure sensor. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] See Figure 1 As shown, this application proposes a reflux processing device for tea pigment production, comprising: a reflux reactor 1, the reflux reactor 1 being provided with a feed inlet 4, wherein a mixture of concentrated tea extract and ethanol flows into the reflux reactor 1 from the feed inlet 4; a jacket 17, the jacket 17 being disposed on the outer peripheral surface of the reflux reactor 1, and a heating space being provided between the jacket 17 and the reflux reactor 1; and a condenser 5, the reflux reactor 1 being connected to the condenser 5.

[0021] The reflux reactor 1 is the core equipment of a reflux processing device for tea pigment production. Ethanol is added to the concentrated liquid obtained from tea leaves until the alcohol content reaches 40% v / v to 70% v / v, and the pH is adjusted to 1 to 4. This mixture is then added to the reflux reactor 1 through the feed inlet 4, and heated within the reactor 1 for reflux extraction for 0.5 to 2 hours. This process extracts the tea pigment and facilitates the precipitation of impurities, reducing the impurity content in the final tea pigment crystals.

[0022] The jacket 17 is located on the outer circumferential surface of the reflux reactor 1. A heating space is provided between the jacket 17 and the reflux reactor 1. Steam enters the heating space and exchanges heat with the reflux reactor 1, heating it. Two connecting pipes exist between the condenser 5 and the reflux reactor 1. The first pipe is a steam pipe, through which steam from the reflux reactor 1 flows into the condenser 5 and condenses to form reflux liquid. The reflux liquid flows back into the reflux reactor 1 through the second pipe. A solenoid valve 6 is installed on the second pipe.

[0023] In this embodiment, a second pressure sensor 3 is installed on the reflux reactor 1 to monitor the pressure inside the reflux reactor 1, and a third pressure sensor 18 is installed on the jacket 17 to monitor the gas pressure in the heating space. Explosion-proof valves are installed on both the reflux reactor 1 and the jacket 17 to release pressure when it becomes too high. A temperature sensor 2 is also installed on the reflux reactor 1 to monitor the temperature inside the reflux reactor 1.

[0024] Specifically, ethanol is added to the concentrated liquid obtained from tea leaves until the alcohol content reaches 40% v / v to 70% v / v, and the pH is adjusted to 1 to 4. The mixture is then added to reflux reactor 1 through inlet 4 and heated within reflux reactor 1 for reflux extraction for 0.5 to 2 hours. This process extracts tea pigments, facilitating the precipitation of effective substances and reducing the impurity content in the final tea pigment crystals, thereby improving the purity of the tea pigments.

[0025] Preferably, a drain pipe is provided at the bottom of the reflux reactor 1, and a solenoid valve 6 is provided on the drain pipe, so that the waste liquid generated from cleaning the reflux reactor 1 can be discharged from the drain pipe.

[0026] See Figure 1 As shown, in some embodiments, the system further includes: a steam pipe disposed in the jacket 17 and connected to the heating space; steam enters the heating space from the steam pipe and exchanges heat with the reflux reactor 1 to heat the reflux reactor 1; and a steam trap 16 disposed in the jacket 17 and connected to the heating space. Steam condenses into water and is discharged from the steam trap 16.

[0027] See Figure 1 As shown, in some embodiments, the system further includes: a cooler 15 connected to a reflux reactor 1; a connecting pipe is provided between the cooler 15 and the reflux reactor 1, and a solenoid valve 6 is installed on the connecting pipe. After reflux for 0.5h to 2h, the reflux liquid and steam in the reflux reactor 1 flow into the cooler 15 along the connecting pipe; and a condenser pipe 14 is installed inside the cooler 15. The condenser pipe 14 is used to cool the reflux liquid and the steam discharged from the reflux reactor 1.

[0028] In this embodiment, a cooling water tank 8 is also included, and a condensation pipe 14 is connected to the cooling water tank 8. Preferably, a solenoid valve 6 and a condensation pump are installed on the condensation pipe 14. After the cooling water in the condensation pipe 14 flows out of the cooler 15, it is cooled again by the cooling equipment and then flows back to the cooling water tank 8 after being cooled again. A drain pipe is also provided at the bottom of the cooler 15, and a solenoid valve 6 is installed on the drain pipe. Waste liquid generated from cleaning the cooler 15 can be discharged from the drain pipe.

[0029] See Figure 1 As shown, in some embodiments, the system further includes: a liquid medicine delivery pump 13, which is connected to a cooler 15; the bottom of the cooler 15 is connected to the liquid medicine delivery pump 13 via a connecting pipe, on which a solenoid valve 6 is installed; a gas-liquid separator 7, which is connected to both the liquid medicine delivery pump 13 and the cooler 15; the reflux liquid condensed in the cooler 15 flows into the gas-liquid separator 7 under the drive of the liquid medicine delivery pump 13, where the gas-liquid separator 7 separates the reflux liquid, completely separating it from the steam; a filter 11 is connected to the gas-liquid separator 7. The reflux liquid enters the filter 11, while the steam flows back to the cooler 15 for further cooling. A solenoid valve 6 is installed on the connecting pipe between the gas-liquid separator 7 and the filter, and also on the connecting pipe between the gas-liquid separator 7 and the cooler 15.

[0030] See Figure 1 As shown, in some embodiments, it further includes: a first pressure sensor 12, which is installed on the connection circuit between the liquid delivery pump 13 and the gas-liquid separator 7, and the liquid delivery pump 13 is connected to the filter 11. The first pressure sensor 12 is used to detect the gas pressure of the reflux liquid. When the gas pressure is high, the reflux liquid needs to flow through the gas-liquid separator 7. When the gas pressure is too low, it is determined that there is almost no steam, and the reflux liquid can flow directly into the filter 11 through the connection pipe between the liquid delivery pump 13 and the filter 11. A solenoid valve 6 is installed on the connection pipe between the liquid delivery pump 13 and the filter 11. Since the interface of the direct connection pipe between the liquid delivery pump 13 and the filter 11 is closer to the liquid delivery pump 13, the reflux liquid will preferentially flow into the filter 11 from the direct connection pipe. Of course, some reflux liquid still flows into the gas-liquid separator 7 and then flows into the filter 11 from the gas-liquid separator 7.

[0031] See Figure 1As shown, in some embodiments, the device further includes: a metering device 10 connected to a filter 11; the reflux liquid passing through the filter 11 enters the metering device 10; a solenoid valve 6 is installed on the connecting pipe between the metering device 10 and the filter 11; and a level sensor 9 is installed on the metering device 10. The level sensor 9 is used to determine the reflux liquid level height in the metering device 10, thereby determining the amount of reflux liquid. The metering device 10 also has a discharge pipe, on which the solenoid valve 6 is installed.

[0032] In this application, all solenoid valves 6 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.

[0033] 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 reflux processing device for tea pigment production, characterized in that, include: Reflux reactor (1), the reflux reactor (1) is provided with a feed inlet (4), the concentrated tea extract and ethanol mixture flows into the reflux reactor (1) from the feed inlet (4); A jacket (17) is provided on the outer peripheral surface of the reflux reactor (1), and a heating space is provided between the jacket (17) and the reflux reactor (1); The condenser (5) is connected to the reflux reactor (1).

2. The reflux processing equipment for tea pigment production according to claim 1, characterized in that, Also includes: A steam pipe is disposed in the jacket (17) and connects to the heating space; A steam trap (16) is disposed in the jacket (17) and communicates with the heating space.

3. The reflux processing equipment for tea pigment production according to claim 1, characterized in that, Also includes: Cooler (15), the cooler (15) being connected to the reflux reactor (1); A condenser pipe (14) is provided inside the cooler (15).

4. The reflux processing equipment for tea pigment production according to claim 3, characterized in that, Also includes: A liquid medicine delivery pump (13) is connected to the cooler (15). Gas-liquid separator (7), the gas-liquid separator (7) is connected to the liquid delivery pump (13), and the gas-liquid separator (7) is connected to the cooler (15); The filter (11) is connected to the gas-liquid separator (7).

5. The reflux processing equipment for tea pigment production according to claim 4, characterized in that, Also includes: The first pressure sensor (12) is installed on the connection circuit between the liquid delivery pump (13) and the gas-liquid separator (7), and the liquid delivery pump (13) is connected to the filter (11).

6. The reflux processing equipment for tea pigment production according to claim 4, characterized in that, Also includes: Meter (10), the meter (10) is connected to the filter (11); A liquid level sensor (9) is disposed on the meter (10).

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