Accurate Chinese herbal medicine extraction equipment for sauce-stewed cooked food of medicinal and edible traditional Chinese medicinal materials

Abstract

The invention relates to the technical field of cooked food production, and provides Chinese herbal medicine accurate extraction equipment for medicinal and edible traditional Chinese medicine sauce stewed cooked food, which comprises an extraction tank, a heating system, a stirring system, a sensor system, a controller, a condensation recovery system and a filtering system. According to the Chinese herbal medicine accurate extraction equipment and the extraction process for the sauce-stewed cooked food of the medicinal and edible traditional Chinese medicinal materials, through the optimization of the equipment structure, the cooperation of multiple functional systems and the accurate control of the technological process, the extraction efficiency is improved; the method has multiple beneficial effects in the aspects of improving the extraction rate of effective components of traditional Chinese medicinal materials, ensuring the quality of an extracting solution, saving the cost, ensuring safe and stable operation of equipment and the like, and an efficient and high-quality extraction solution is provided for application of the medicinal and edible traditional Chinese medicinal materials in sauce stewed cooked food.

Description

Technical Field

[0001] The invention relates to the technical field of cooked food production, and in particular to a device for accurately extracting Chinese herbal medicines used for cooked food made of Chinese medicinal materials having both medicinal and edible properties. Background Art

[0002] In the food industry, braised and marinated cooked food is popular among consumers for its unique flavor and taste. The application of Chinese medicinal materials with medicinal and edible properties in braised and marinated cooked food can not only add a unique flavor, but also give the food certain health functions. However, in the production process of braised and marinated cooked food with medicinal and edible properties, the precise extraction of Chinese herbal medicines is a key link.

[0003] The existing Chinese herbal medicine precision extraction equipment for Chinese medicinal materials with medicinal and edible properties has the following shortcomings: Unreasonable extraction tank structure: The structure of traditional extraction tanks is relatively simple, and it is often impossible to achieve precise temperature control, resulting in uneven temperature distribution, which affects extraction efficiency and quality. At the same time, the sealing cover has a single function and cannot meet multiple operating requirements. The design of the discharge port is also not reasonable, making it difficult to accurately control the discharge speed and flow rate.

[0004] Imperfect heating system: The existing heating method is relatively simple and cannot be flexibly adjusted according to the different stages of the extraction process, resulting in low heating efficiency, long extraction time, and high energy consumption. In addition, the precise control ability of the heating process is insufficient, making it difficult to accurately heat according to the preset temperature parameters.

[0005] The stirring system is not effective: the structure of the stirring paddle is not designed reasonably, which makes it impossible for the Chinese medicinal materials to fully contact with the solvent, affecting the dissolution efficiency of the effective ingredients. In addition, the stirring speed is not accurately controlled and cannot be adjusted in time according to the needs of the extraction process.

[0006] The sensor system is not comprehensive: Existing sensor systems can often only monitor some parameters and cannot achieve comprehensive monitoring of multiple parameters such as temperature, pressure and liquid level, resulting in inaccurate feedback information and difficulty in accurately controlling the extraction process.

[0007] Low efficiency of condensation recovery system: The design of condensation recovery system is not reasonable enough, and the solvent recovery rate is low, resulting in waste of resources and environmental pollution. At the same time, the condensation effect of the condenser is not good, which easily leads to the loss of effective ingredients.

[0008] The filtration system is not sophisticated: The filtration effect of the filtration system is not ideal, and it cannot effectively remove impurities in the extract, affecting the purity and quality of the extract, and further affecting the quality and taste of the marinated cooked food.

[0009] Therefore, this invention proposes a precise extraction device for Chinese herbal medicine used in Chinese medicinal materials and cooked food to solve the above problems. Summary of the invention

[0010] In order to overcome the defects of the prior art, the purpose of the present invention is to provide a Chinese herbal medicine precision extraction device for Chinese medicinal materials that are both medicinal and edible, such as sauces, stews, and cooked foods.

[0011] To achieve the above object, the technical solution of the present invention is implemented as follows: a Chinese herbal medicine precision extraction device for Chinese medicinal materials and cooked food, comprising: The extraction tank has a double-layer structure, including an inner layer and an outer layer. The inner layer is used to contain Chinese medicinal materials and solvents, and the outer layer is a temperature control cavity. A heat-conducting medium is arranged between the inner layer and the outer layer. A sealing cover is arranged on the top of the extraction tank, and a feed port, a solvent addition port, a pressure balance port and an observation window are arranged on the sealing cover. A discharge port is arranged at the bottom of the extraction tank, and a flow regulating valve is arranged at the discharge port. A heating system, the heating system includes a main heating device and an auxiliary heating device, the main heating device is an electromagnetic induction heating coil surrounding the outer layer, and the auxiliary heating device is a far-infrared heating plate arranged at the bottom of the inner layer, and both the main heating device and the auxiliary heating device are electrically connected to the controller; A stirring system, the stirring system includes a stirring motor, a stirring shaft and a stirring paddle, the stirring motor is arranged on the top of the extraction tank, the stirring shaft penetrates the sealing cover and is connected to the output shaft of the stirring motor, the stirring paddle is arranged in the inner layer and is a multi-layer structure, including an upper paddle and a lower paddle, the upper paddle and the lower paddle are different in shape and angle, and the stirring motor is electrically connected to the controller; The sensor system includes a plurality of temperature sensors, a plurality of pressure sensors and a liquid level sensor. The temperature sensors are respectively arranged at different height positions of the inner layer and in the outer layer, the pressure sensors are arranged in the inner layer, and the liquid level sensor is arranged on the inner wall of the inner layer. The temperature sensors, the pressure sensors and the liquid level sensors are all electrically connected to the controller; A controller, the controller includes a central processing unit, a storage unit, an input / output interface and a display unit, the central processing unit is electrically connected to the storage unit, the input / output interface and the display unit respectively, the input / output interface is electrically connected to the heating system, the stirring system and the sensor system, the storage unit is pre-stored with extraction parameters for different Chinese medicinal materials that are both medicinal and edible, and the display unit is used to display various parameters during the extraction process; Condensation recovery system, the condensation recovery system includes a condenser and a recovery tank, the air inlet of the condenser is connected to the pressure balance port through a pipeline, the liquid outlet of the condenser is connected to the recovery tank through a pipeline, the recovery tank is connected to the solvent addition port through a pipeline, and the condenser is a serpentine tube condenser; The filtration system includes a primary filter and a precision filter. The liquid inlet of the primary filter is connected to the discharge port through a pipeline, the liquid outlet of the primary filter is connected to the liquid inlet of the precision filter through a pipeline, and the liquid outlet of the precision filter is connected to an external collecting device. The primary filter is a screen filter, and the precision filter is a ceramic membrane filter.

[0012] Preferably, the surface of the far-infrared heating plate is provided with an anti-corrosion coating.

[0013] Preferably, the upper blades of the stirring paddle are an arc-shaped structure inclined upward, and the lower blades are a spiral structure inclined downward.

[0014] Preferably, the pore size of the ceramic membrane of the ceramic membrane filter is 0.1-0.5 micrometers.

[0015] Preferably, the method comprises the following steps: Pretreatment of Chinese medicinal materials: Screen the Chinese medicinal materials that are both medicinal and edible, remove impurities and moldy parts, wash and dry them, and cut them into blocks or slices of different sizes according to the types and characteristics of the Chinese medicinal materials; Equipment preparation: According to the type of Chinese medicinal materials, retrieve the corresponding extraction parameters from the storage unit of the controller, including initial temperature, heating rate, target temperature, pressure range, stirring speed, extraction time and other parameters, open the sealing cover of the extraction tank, put the pretreated Chinese medicinal materials into the inner layer through the feed port, and close the sealing cover; Solvent addition: A predetermined amount of solvent is added to the inner layer of the extraction tank through the solvent addition port. The solvent is water, ethanol or a mixture thereof selected according to the characteristics of the Chinese medicinal materials. During the addition process, the liquid level is monitored by a liquid level sensor, and the addition is stopped when the preset liquid level is reached; Initial heating and stirring: Start the main heating device, and raise the temperature of the inner layer to the first target temperature according to the preset heating rate. During this process, the controller accurately controls the power of the main heating device according to the feedback signal of the temperature sensor, and starts the stirring motor at the same time, driving the stirring paddle to stir at the first preset stirring speed. The upper paddles initially mix the Chinese medicinal materials and the solvent, and the lower paddles flip the Chinese medicinal materials at the bottom upwards, so that the Chinese medicinal materials are fully in contact with the solvent. Staged heating and pressure control: When the temperature of the inner layer reaches the first target temperature, it is maintained for a period of time, and then the target temperature is gradually increased according to the parameters in the storage unit. During the heating process, the pressure in the inner layer is monitored by the pressure sensor. When the pressure reaches the preset upper pressure limit, part of the gas is released to the condenser through the pressure balance port for condensation recovery. At the same time, the controller adjusts the heating power of the main heating device and the auxiliary heating device according to the pressure change to maintain the pressure within the set range; Enhanced extraction: When the temperature of the inner layer reaches the final target temperature, the auxiliary heating device is started to work in conjunction with the main heating device, and the stirring speed of the stirring motor is increased to the second preset stirring speed to further enhance the extraction of effective ingredients of Chinese medicinal materials. During this process, the temperature and pressure in the inner layer are monitored in real time by the temperature sensor and the pressure sensor, and the controller dynamically adjusts the working status of the heating device and the stirring device; Extraction completion and discharging: After reaching the preset extraction time, the controller stops the heating device and the stirring device, opens the flow regulating valve at the discharge port, and the extract first passes through the primary filter for preliminary filtration to remove larger particle impurities, and then enters the precision filter for precision filtration to obtain pure extract and collect it in the external collection device. During the discharging process, the liquid level sensor monitors the liquid level in real time. When the liquid level is lower than the preset minimum level, the flow regulating valve is closed.

[0016] Preferably, the first target temperature is 40-60°C and the final target temperature is 80-100°C.

[0017] Preferably, the first preset stirring speed is 50-100 rpm, and the second preset stirring speed is 150-200 rpm.

[0018] Preferably, the extraction time is 1-3 hours.

[0019] The beneficial effects of the present invention are embodied in: 1. Equipment-related beneficial effects (I) Extraction tank structure Precise temperature control The extraction tank has a double-layer structure, with the inner layer used to hold Chinese medicinal materials and solvents, and the outer layer being a temperature control chamber with a heat-conducting medium in the middle. This structure enables precise temperature control. The main heating device heats the outer layer and the auxiliary heating device heats the bottom of the inner layer, so that the materials in the extraction tank can be heated from different angles, making the temperature distribution more uniform, which helps to improve the extraction efficiency and ensure the extraction quality.

[0020] Multifunctional sealing cover The sealing cover is equipped with a feed port, a solvent addition port, a pressure balance port and an observation window. The feed port is convenient for the input of Chinese medicinal materials, the solvent addition port is convenient for accurate addition of solvents, the pressure balance port can release gas when the pressure is too high, ensuring the safe operation of the equipment while realizing the condensation and recovery of the solvent, and the observation window is convenient for the operator to observe the internal situation of the extraction tank. These functions are integrated on the sealing cover, making the equipment operation more convenient and efficient.

[0021] Flow rate adjustable discharge A flow regulating valve is provided at the discharge port, which can accurately control the discharge speed of the extract. Together with the liquid level sensor, it can effectively prevent the waste of the extract and also facilitate better connection with the subsequent filtration system.

[0022] (II) Heating system Multiple heating methods work together The main heating device uses an electromagnetic induction heating coil around the outer layer, and the auxiliary heating device uses a far-infrared heating plate at the bottom of the inner layer. This combination can flexibly adjust the heating strategy according to the different stages of the extraction process. During the initial heating, electromagnetic induction heating can raise the temperature more gently, while in the intensive extraction stage, the addition of the far-infrared heating plate can quickly raise the temperature. The two work together to improve heating efficiency and shorten extraction time.

[0023] Precise control of heating The heating system is electrically connected to the controller, which accurately controls the power of the main heating device and the auxiliary heating device according to the feedback signal from the temperature sensor. This allows the heating process to be carried out strictly according to the preset temperature parameters, and both the heating rate and the target temperature can be accurately controlled, which is conducive to improving the extraction rate of the effective ingredients of traditional Chinese medicines.

[0024] (III) Mixing system Efficient stirring structure The stirring paddle is a multi-layer structure, with the upper paddle blades being an arc structure tilted upward, and the lower paddle blades being a spiral structure tilted downward. This unique structural design enables the upper paddle blades to initially mix the Chinese medicinal materials and the solvent during the stirring process, while the lower paddle blades can flip the Chinese medicinal materials at the bottom upward, ensuring that the Chinese medicinal materials are fully in contact with the solvent and improving the dissolution efficiency of the active ingredients.

[0025] Precise control of stirring speed The stirring motor is electrically connected to the controller and can work at a preset stirring speed according to different stages of the extraction process. The materials are initially mixed at a lower speed during the initial stirring, and the stirring speed is increased during the intensive extraction stage to further promote the extraction of effective ingredients. This precise control helps to improve the extraction effect.

[0026] 4. Sensor system Comprehensive parameter monitoring The sensor system includes multiple temperature sensors, pressure sensors and liquid level sensors, which monitor the temperature at different heights of the inner layer and the outer layer of the extraction tank, the pressure of the inner layer, and the liquid level of the inner layer. Comprehensive monitoring can provide accurate feedback information to the controller for precise control of operations such as heating, stirring and discharging.

[0027] Ensure safe and stable operation of equipment By real-time monitoring of temperature, pressure and liquid level, abnormal conditions can be detected in time. For example, when the pressure is too high, the heating power can be adjusted or the gas can be released in time, and when the liquid level is too low, the discharge can be stopped. This helps to ensure the safe and stable operation of the equipment and extend the service life of the equipment.

[0028] (V) Condensation recovery system Solvent recovery and reuse The condensation recovery system condenses the gas released from the pressure balance port into liquid through the condenser and collects it in the recovery tank. The solvent in the recovery tank can be connected to the solvent addition port through a pipeline for recycling and reuse. This not only saves solvent costs, but also meets environmental protection requirements.

[0029] Active ingredient retention The condenser adopts a serpentine tube condenser, which can efficiently condense the gas into liquid, reduce the loss of effective components during the condensation process, and ensure the efficiency and economy of the extraction process.

[0030] (VI) Filtration system Multi-stage filtration ensures purity The filtration system includes a primary filter and a precision filter. The primary filter is a screen filter that can remove larger particles of impurities, and the precision filter is a ceramic membrane filter with a pore size of 0.1-0.5 microns, which can further remove tiny impurities. Multi-stage filtration ensures that the final extract is highly pure and improves the quality of the extract, which is conducive to the subsequent application in Chinese medicinal materials, sauces, stews and cooked foods.

[0031] 2. Beneficial effects related to extraction process 1. Pretreatment of Chinese medicinal materials Improve extraction efficiency The Chinese medicinal materials are pre-treated by screening, cleaning, drying and cutting. Screening removes impurities and moldy parts, cleaning ensures that there is no dirt on the surface, drying ensures that the water content is appropriate, and cutting adjusts the size or shape according to the characteristics of the Chinese medicinal materials. These operations can increase the contact area between the Chinese medicinal materials and the solvent, increase the dissolution rate of the active ingredients, and thus improve the extraction effect.

[0032] 2. Precise control of the process Personalized extraction parameters According to different types of Chinese medicinal materials, corresponding extraction parameters are retrieved from the controller storage unit, such as initial temperature, heating rate, target temperature, pressure range, stirring speed and extraction time, etc. This personalized parameter setting can accurately extract according to the characteristics of different Chinese medicinal materials and extract the effective ingredients to the greatest extent.

[0033] Dynamic control of the process During the extraction process, the controller dynamically adjusts the working state of the heating device and stirring device and pressure control according to the feedback from the sensor. For example, during the staged heating and pressure control process, the heating power is adjusted according to the pressure change, and during the enhanced extraction process, the heating and stirring state are adjusted according to the temperature and pressure fluctuations. This dynamic control ensures the stability and effectiveness of the extraction process and improves the extraction efficiency and quality.

[0034] In summary, this kind of precise extraction equipment and extraction process of Chinese herbal medicines used for edible and medicinal Chinese herbs in sauces, stews and cooked foods, through the optimization of equipment structure, the coordination of multiple functional systems and the precise control of process, has many beneficial effects in improving the extraction rate of effective ingredients in Chinese medicinal materials, ensuring the quality of extracts, saving costs and ensuring safe and stable operation of equipment, etc. It provides an efficient and high-quality extraction solution for the application of edible and medicinal Chinese herbs in sauces, stews and cooked foods. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In the attached picture: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a half-cut structure schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the condensation recovery system of the present invention; Figure 4 It is a structural schematic diagram of the stirring system of the present invention; Figure 5 It is a schematic diagram of the structure of the controller system of the present invention; Description of reference numerals: 1. Extraction tank; 2. Main heating device; 3. Auxiliary heating device; 4. Controller; 5. Stirring motor; 6. Stirring shaft; 7. Stirring paddle; 8. Temperature sensor; 9. Pressure sensor; 10. Liquid level sensor; 11. Condenser; 12. Recovery tank; 13. Primary filter; 14. Precision filter; 101, inner layer; 102, outer layer; 103, sealing cover; 104, feed port; 105, solvent addition port; 106, pressure balance port; 107, observation window; 108, discharge port; 109, flow control valve; 401, central processing unit; 02, storage unit; 403, input and output interface; 404, display unit; 701, upper blade; 702, lower blade. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the invention.

[0037] It should be noted that if the embodiments of the invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the invention.

[0039] Please refer to the instruction manual Figure 1-Figure 5 The present invention provides a precise extraction device for Chinese herbal medicine used in Chinese medicinal materials and cooked food: 1. Pretreatment of Chinese medicinal materials Screening and cleaning Select Chinese medicinal materials that are both medicinal and edible, such as wolfberry, yam, etc. Carefully screen the selected Chinese medicinal materials, use sieves and other tools to remove impurities such as soil, stones, etc., and pick out the Chinese medicinal materials with moldy parts.

[0040] Put the screened Chinese medicinal materials into the cleaning equipment and rinse them with clean water to ensure that there is no dirt remaining on the surface of the Chinese medicinal materials.

[0041] Drying and cutting Place the cleaned Chinese medicinal materials in a well-ventilated place or in special drying equipment for drying until the moisture content of the Chinese medicinal materials reaches an appropriate level.

[0042] Cut according to the type and characteristics of the Chinese medicinal materials. For example, for blocky yam, it can be cut into slices with a thickness of about 0.5-1 cm; for smaller Chinese medicinal materials such as wolfberry, it can be kept in its original shape or slightly crushed to increase its contact area with the solvent.

[0043] 2. Equipment preparation Parameter Retrieval Assuming that the Chinese medicinal material extracted this time is wolfberry, the extraction parameters corresponding to wolfberry are searched from the storage unit 402 of the controller 4. For example, the initial temperature is set to 40°C, the heating rate is 5°C / min, the target temperature is 80°C, the pressure range is set to 0.5 - 1.5MPa, the first preset stirring speed is 80 rpm, the second preset stirring speed is 180 rpm, the extraction time is 2 hours, etc.

[0044] Medicinal materials delivery Open the sealing cover 103 on the top of the extraction tank 1, and carefully put the pretreated wolfberries into the inner layer 101 of the extraction tank 1 through the feed port 104. After the feeding is completed, close the sealing cover 103 to ensure a good seal to prevent solvent volatilization and pressure leakage during the extraction process.

[0045] (III) Solvent addition Solvent selection and addition According to the characteristics of wolfberry, water is selected as the solvent. A pre-calculated amount of water is added to the inner layer 101 of the extraction tank 1 through the solvent addition port 105. During the addition process, the liquid level sensor 10 monitors the liquid level height in real time. For example, when the set liquid level height is 80% of the volume of the inner layer 101 of the extraction tank, as water is continuously injected, when the liquid level sensor 10 detects that the liquid level reaches this height, the solvent is stopped from being added to the extraction tank.

[0046] 4. Preliminary heating and stirring Heating control The main heating device 2, i.e., the electromagnetic induction heating coil surrounding the outer layer 102, is started. The controller 4 controls the power of the main heating device 2 according to the preset heating rate (5°C / minute), so that the temperature of the inner layer 101 gradually rises to the first target temperature of 40°C. In this process, the temperature sensors 8 at different heights of the inner layer 101 and the outer layer 102 continuously feed back temperature signals to the controller 4, and the controller 4 accurately adjusts the power of the main heating device 2 according to these signals to ensure the accuracy of the heating rate.

[0047] Mixing operation At the same time, the stirring motor 5 is started, and the stirring motor 5 drives the stirring shaft 6 and the stirring paddle 7 to stir at a first preset stirring speed of 80 rpm. The upper paddle 701 of the stirring paddle 7 is an arc-shaped structure inclined upward, which preliminarily mixes the wolfberry and water, and the lower paddle 702 is a spiral structure inclined downward, which can flip the wolfberry at the bottom upward, so that the wolfberry is fully in contact with the water, and promote the initial dissolution of the effective ingredients.

[0048] (V) Staged heating and pressure control Heating and maintaining When the temperature of the inner layer 101 reaches the first target temperature of 40° C., this temperature is maintained for 30 minutes. Then, according to the parameters in the storage unit 402, the target temperature is gradually increased at a rate of 2° C. / minute.

[0049] Pressure monitoring and regulation During the heating process, the pressure sensor 9 arranged in the inner layer 101 monitors the pressure in real time. When the pressure reaches the preset upper limit of 1.5MPa, part of the gas is released to the condenser 11 through the pressure balance port 106 for condensation recovery. The condenser 11 is a serpentine condenser. After the gas entering is cooled and liquefied in the condenser, it flows into the recovery tank 12 through the pipeline. At the same time, the controller 4 adjusts the heating power of the main heating device 2 and the auxiliary heating device 3 according to the change of pressure. For example, when the pressure is close to the upper limit, the heating power is appropriately reduced, and when the pressure is close to the lower limit of 0.5MPa, the heating power is appropriately increased to maintain the pressure within the set range of 0.5-1.5MPa.

[0050] (VI) Enhanced extraction Synergistic heating and high-speed stirring When the temperature of the inner layer 101 reaches the final target temperature of 80°C, the auxiliary heating device 3, i.e., the far-infrared heating plate at the bottom of the inner layer 101 (whose surface is provided with an anti-corrosion coating to prevent corrosion by solvents, etc. during the extraction process), is started to work in conjunction with the main heating device 2 to increase the heating efficiency.

[0051] At the same time, the stirring speed of the stirring motor 5 is increased to a second preset stirring speed of 180 rpm. During this process, the temperature sensor 8 and the pressure sensor 9 continuously monitor the temperature and pressure in the inner layer 101, and the controller (4) dynamically adjusts the working state of the heating device and the stirring device according to the monitored temperature and pressure. For example, if the temperature drops or the pressure fluctuates, the controller 4 will adjust the power of the main heating device 2 and the auxiliary heating device 3 and the speed of the stirring motor 5 accordingly to ensure the stability and effectiveness of the extraction process and further enhance the extraction of the effective ingredients of wolfberry.

[0052] (VII) Extraction completion and discharge Stop operation and discharge After the preset extraction time of 2 hours is reached, the controller 4 stops the operation of the main heating device 2 , the auxiliary heating device 3 and the stirring motor 5 .

[0053] Filter out The flow regulating valve 109 at the discharge port 108 is opened, and the extract first flows into the primary filter 13 through the pipeline. The primary filter 13 is a screen filter that can remove larger particle impurities, such as wolfberry residues, etc. Then the extract after preliminary filtration enters the precision filter 14, which is a ceramic membrane filter with a pore size of 0.1-0.5 microns, which can further filter out tiny impurities to obtain a pure wolfberry extract, which is collected in an external collection device.

[0054] Liquid level monitoring and discharge control During the discharging process, the liquid level sensor 10 monitors the liquid level in real time. When the liquid level is lower than a preset minimum liquid level (eg, 10% of the volume of the inner layer 101 of the extraction tank), the controller 4 controls the flow regulating valve 109 to close and stop discharging.

[0055] The solvent in the recovery tank 12 can be connected to the solvent addition port 105 through a pipeline to achieve solvent recovery and reuse.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A Chinese herbal medicine precision extraction device for Chinese medicinal materials used in food and medicine, characterized in that: include: An extraction tank (1), the extraction tank (1) having a double-layer structure, comprising an inner layer (101) and an outer layer (102), the inner layer (101) being used to contain Chinese medicinal materials and a solvent, the outer layer (102) being a temperature control chamber, a heat-conducting medium being provided between the inner layer (101) and the outer layer (102), a sealing cover (103) being provided on the top of the extraction tank (1), a feed port (104), a solvent addition port (105), a pressure balance port (106) and an observation window (107), a discharge port (108) being provided at the bottom of the extraction tank (1), and a flow regulating valve (109) being provided at the discharge port (108); A heating system, the heating system comprising a main heating device (2) and an auxiliary heating device (3), the main heating device (2) being an electromagnetic induction heating coil surrounding the outer layer (102), the auxiliary heating device (3) being a far-infrared heating plate arranged at the bottom of the inner layer (101), the main heating device (2) and the auxiliary heating device (3) being electrically connected to a controller (4); A stirring system, the stirring system comprising a stirring motor (5), a stirring shaft (6) and a stirring paddle (7), the stirring motor (5) being arranged at the top of the extraction tank (1), the stirring shaft (6) penetrating the sealing cover (103) and being connected to the output shaft of the stirring motor (5), the stirring paddle (7) being arranged in the inner layer (101) and being a multi-layer structure, comprising an upper paddle (701) and a lower paddle (702), the upper paddle (701) and the lower paddle (702) having different shapes and angles, and the stirring motor (5) being electrically connected to the controller (4); A sensor system, the sensor system comprising a plurality of temperature sensors (8), a plurality of pressure sensors (9) and a liquid level sensor (10), the temperature sensors (8) being arranged at different height positions of the inner layer (101) and in the outer layer (102), the pressure sensors (9) being arranged in the inner layer (101), and the liquid level sensor (10) being arranged on the inner wall of the inner layer (101), the temperature sensors (8), the pressure sensors (9) and the liquid level sensor (10) being all electrically connected to the controller (4); A controller (4), the controller (4) comprising a central processing unit (401), a storage unit (402), an input / output interface (403) and a display unit (404), the central processing unit (401) being electrically connected to the storage unit (402), the input / output interface (403) and the display unit (404) respectively, the input / output interface (403) being electrically connected to the heating system, the stirring system and the sensor system, the storage unit (402) pre-stores extraction parameters for different Chinese medicinal materials having both medicinal and edible properties, and the display unit (404) being used to display various parameters during the extraction process; A condensation recovery system, the condensation recovery system comprising a condenser (11) and a recovery tank (12), the air inlet of the condenser (11) being connected to the pressure balance port (106) via a pipeline, the liquid outlet of the condenser (11) being connected to the recovery tank (12) via a pipeline, the recovery tank (12) being connected to the solvent addition port (105) via a pipeline, and the condenser (11) being a serpentine tube condenser; A filtration system, the filtration system comprising a primary filter (13) and a precision filter (14), the liquid inlet of the primary filter (13) being connected to the discharge port (108) via a pipeline, the liquid outlet of the primary filter (13) being connected to the liquid inlet of the precision filter (14) via a pipeline, the liquid outlet of the precision filter (14) being connected to an external collection device, the primary filter (13) being a screen filter, and the precision filter (14) being a ceramic membrane filter.

2. The Chinese herbal medicine precision extraction equipment for Chinese medicinal materials used for food and medicine sauces and cooked food according to claim 1 is characterized in that: The surface of the far-infrared heating plate is provided with an anti-corrosion coating.

3. The Chinese herbal medicine precision extraction equipment for Chinese medicinal materials used in food and medicine sauces and cooked food according to claim 1 is characterized in that: The upper blade (701) of the stirring paddle (7) is an arc-shaped structure inclined upward, and the lower blade (702) is a spiral structure inclined downward.

4. The Chinese herbal medicine precision extraction equipment for Chinese medicinal materials used for food and medicine sauces and cooked food according to claim 1, characterized in that: The ceramic membrane filter (14) has a pore size of 0.1-0.5 micrometers.

5. An extraction process using the Chinese herbal medicine precision extraction device as claimed in claim 1, characterized in that: The following steps are involved: Pretreatment of Chinese medicinal materials: Screen the Chinese medicinal materials that are both medicinal and edible, remove impurities and moldy parts, wash and dry them, and cut them into blocks or slices of different sizes according to the types and characteristics of the Chinese medicinal materials; Equipment preparation: according to the type of Chinese medicinal materials, corresponding extraction parameters are retrieved from the storage unit (402) of the controller (4), including parameters such as initial temperature, heating rate, target temperature, pressure range, stirring speed, extraction time, etc., the sealing cover (103) of the extraction tank (1) is opened, the pre-treated Chinese medicinal materials are placed into the inner layer (101) through the feed port (104), and the sealing cover (103) is closed; Solvent addition: adding a predetermined amount of solvent to the inner layer (101) of the extraction tank (1) through the solvent addition port (105), wherein the solvent is water, ethanol or a mixture thereof selected according to the characteristics of the Chinese medicinal materials, and during the addition process, the liquid level is monitored by a liquid level sensor (10), and the addition is stopped when the preset liquid level is reached; Preliminary heating and stirring: the main heating device (2) is started to increase the temperature of the inner layer (101) to a first target temperature according to a preset heating rate. During this process, the controller (4) accurately controls the power of the main heating device (2) according to the feedback signal of the temperature sensor (8), and simultaneously starts the stirring motor (5) to drive the stirring paddle (7) to stir at a first preset stirring speed. The upper paddle (701) preliminarily mixes the Chinese medicinal materials and the solvent, and the lower paddle (702) flips the Chinese medicinal materials at the bottom upwards, so that the Chinese medicinal materials are fully in contact with the solvent. Staged heating and pressure control: When the temperature of the inner layer (101) reaches the first target temperature, it is maintained for a period of time, and then the target temperature is gradually increased according to the parameters in the storage unit (402). During the heating process, the pressure in the inner layer (101) is monitored by the pressure sensor (9). When the pressure reaches the preset upper pressure limit, part of the gas is released to the condenser (11) through the pressure balance port (106) for condensation recovery. At the same time, the controller (4) adjusts the heating power of the main heating device (2) and the auxiliary heating device (3) according to the pressure change to maintain the pressure within the set range; Enhanced extraction: When the temperature of the inner layer (101) reaches the final target temperature, the auxiliary heating device (3) is started to work in conjunction with the main heating device (2), and the stirring speed of the stirring motor (5) is increased to a second preset stirring speed to further enhance the extraction of effective components of the Chinese medicinal materials. During this process, the temperature and pressure in the inner layer (101) are monitored in real time by the temperature sensor (8) and the pressure sensor (9), and the controller (4) dynamically adjusts the working states of the heating device and the stirring device; Completion of extraction and discharge: After reaching the preset extraction time, the controller (4) stops the operation of the heating device and the stirring device, opens the flow regulating valve (109) at the discharge port (108), and the extract first passes through the primary filter (13) for preliminary filtration to remove larger particle impurities, and then enters the precision filter (14) for precision filtration to obtain pure extract and collect it in an external collection device. During the discharge process, the liquid level sensor (10) monitors the liquid level in real time. When the liquid level is lower than the preset minimum liquid level, the flow regulating valve (109) is closed.

6. The extraction process of the Chinese herbal medicine precision extraction equipment according to claim 5 is characterized in that: The first target temperature is 40-60°C, and the final target temperature is 80-100°C.

7. The extraction process of the Chinese herbal medicine precision extraction equipment according to claim 5 is characterized in that: The first preset stirring speed is 50-100 rpm, and the second preset stirring speed is 150-200 rpm.

8. The extraction process of the Chinese herbal medicine precision extraction equipment according to claim 5 is characterized in that: The extraction time is 1-3 hours.

Images