Traditional Chinese medicine low-temperature baking device system

Abstract

According to the traditional Chinese medicine low-temperature baking device system, the temperature and the air speed of a heating plate are accurately controlled, medicinal materials are evenly heated through a hot air circulating system, and it is ensured that the medicinal materials are effectively baked under the low-temperature condition. A plurality of temperature sensors and humidity sensors are arranged in the device, the state of the medicinal materials is monitored in real time, and the safety and effectiveness of the baking process are ensured. The invention further provides a mathematical model based on heat transfer efficiency optimization and a mathematical model based on a dynamic temperature control system, and the baking effect and the energy utilization efficiency are further improved. The novel traditional Chinese medicine low-temperature baking device system brings an innovative solution to the field of traditional Chinese medicine processing, can effectively solve the problems existing in a traditional traditional Chinese medicine baking method, improves the quality and processing efficiency of traditional Chinese medicines, and promotes the development of the traditional Chinese medicine industry.

Description

Technical Field

[0001] The present invention relates to the field of Chinese medicine processing technology, and is particularly focused on the improvement and innovation of the important processing step of Chinese medicine baking. By using advanced technical means and scientific design concepts, the traditional Chinese medicine baking device is innovated to meet the requirements of modern Chinese medicine processing for quality, efficiency and environmental protection. Background Art

[0002] As a treasure of traditional Chinese medicine, the quality and efficacy of Chinese medicine are crucial to the medical effect. In the processing of Chinese medicine, baking is a key link. Although the traditional high-temperature baking method can complete the processing of medicinal materials to a certain extent, it has many disadvantages. These disadvantages seriously affect the quality and efficacy of Chinese medicine, and at the same time do not meet the requirements of modern energy conservation, environmental protection and precision processing. Therefore, it is urgent to develop a new type of low-temperature baking device system for Chinese medicine. The low-temperature baking device system for Chinese medicine proposed in the present invention aims to overcome the shortcomings of the prior art and provide a solution for the field of Chinese medicine baking that is efficient, energy-saving, can be precisely controlled and can retain the active ingredients of medicinal materials to the greatest extent. Chinese medicine baking mainly adopts high-temperature methods in traditional processing. This high-temperature baking process will cause a series of problems. First, high temperature can easily lead to a large loss of active ingredients in medicinal materials. The active ingredients of many Chinese medicines are sensitive to temperature, and too high temperature will destroy their chemical structure, thereby reducing the efficacy of the medicinal materials. For example, some volatile active ingredients will evaporate quickly at high temperatures, causing the medicinal materials to lose their original medicinal value. Secondly, the traditional high-temperature baking method has high energy consumption. During the high-temperature heating process, a large amount of energy is consumed to maintain the high-temperature environment, which not only increases the production cost, but also does not conform to the concept of modern green production. At the same time, high-temperature baking is not precise enough in temperature control, which can easily cause local overheating of the medicinal materials. Local overheating can cause the medicinal materials to deteriorate in these parts, affecting the overall quality. Moreover, due to the uneven temperature, the degree of baking of medicinal materials in different parts is inconsistent, which further affects the quality stability of the medicinal materials. In view of the various defects of traditional Chinese medicine baking methods, it is of great research value and practical significance to develop a low-temperature baking device that can maintain the active ingredients of medicinal materials while achieving efficient baking. Summary of the invention

[0003] The present invention provides a low-temperature baking device system for traditional Chinese medicine. This novel device can complete the baking of medicinal materials at a relatively low temperature, effectively avoiding the loss of a large amount of active ingredients. Through precise temperature control and optimized heating methods, energy consumption can be reduced and energy utilization efficiency can be improved. At the same time, the uniformity of medicinal material baking is ensured, and the stability of medicinal material quality is improved, thereby providing high-quality processed products for the traditional Chinese medicine industry and promoting the healthy development of the traditional Chinese medicine industry.

[0004] A low-temperature baking device system for traditional Chinese medicine, comprising:

[0005] The heating module is used to provide a stable heating source. The performance and temperature control accuracy of the heating plate are crucial to the entire baking process. It needs to be able to output heat stably under different working conditions and be able to cooperate with the intelligent temperature control system to achieve precise temperature regulation.

[0006] Hot air circulation module is used to evenly heat the medicinal materials. The hot air circulation system should be able to generate stable and even hot air, and circulate the hot air in the device through reasonable air duct design to ensure that all parts of the medicinal materials can receive even heat transfer to achieve even baking.

[0007] Temperature sensors and humidity sensor modules are used to monitor the status of medicinal materials in real time. The accuracy and reliability of the sensors directly affect the judgment of the status of medicinal materials. They need to be able to accurately measure the temperature and humidity around the medicinal materials and transmit the data to the microprocessor in a timely manner to provide a basis for intelligent control.

[0008] The microprocessor module is used to control the temperature and wind speed of the heating plate. As the control core of the entire system, the microprocessor must have powerful data processing capabilities and precise control algorithms, and be able to accurately adjust the temperature and wind speed of the heating plate according to sensor data and preset programs to achieve intelligent baking.

[0009] Dynamic temperature control module, used to automatically adjust the baking temperature according to the characteristics of medicinal materials; the dynamic temperature control system should be able to accurately predict the optimal baking temperature curve according to the characteristics of different medicinal materials, such as different active ingredients, initial moisture content, etc., and adjust the temperature in real time to avoid the impact of too high or too low temperature on the quality of medicinal materials;

[0010] The negative pressure drying module is used to accelerate the evaporation of water. The negative pressure drying system should be able to stably form a negative pressure environment in the baking chamber, reduce the boiling point of water, accelerate the evaporation of water without damaging the effective ingredients of the medicinal materials, and improve the baking efficiency.

[0011] The remote monitoring and maintenance module is used to monitor and control the equipment status in real time. The remote monitoring and maintenance platform should have a reliable network connection function, be able to obtain the equipment's operating parameters in real time, and be able to achieve remote control and fault diagnosis, facilitating user operation and maintenance.

[0012] Furthermore, in the Chinese medicine low-temperature baking device system, the heat transfer model expression is: in

[0013] q is the amount of heat transferred to the medicinal material per unit time (W);

[0014] A is the heating area (m 2 );

[0015] Th is the temperature of the heating plate (°C);

[0016] T m is the temperature of the medicinal material surface (°C);

[0017] d is the thickness of the medicinal material (m).

[0018] This heat transfer model is the theoretical basis for optimizing the heat transfer efficiency of the device. Through the study and analysis of the parameters in the model, the heating and ventilation parameters of the device can be better designed to achieve the best heat transfer effect and ensure that the medicinal materials are fully baked at low temperature.

[0019] Furthermore, in the low-temperature baking device system of traditional Chinese medicine, the kinetic model expression of the change of moisture content is: The model expression is: W(t) = W f +(W i -W f ) -kt

[0020] W(t) is the moisture content of the medicinal material at time t (%);

[0021] k is the water evaporation rate constant (1 / min), which is related to the ambient temperature T e It can be determined through experiments.

[0022] This kinetic model is an important basis for the design of dynamic temperature control systems and negative pressure drying systems. By modeling the changes in the moisture content of medicinal materials, the evaporation of moisture during the baking process can be accurately predicted and controlled to ensure that the medicinal materials reach the appropriate moisture content while protecting the active ingredients.

[0023] Furthermore, the Chinese medicine low-temperature baking device system further includes a multi-layer circulating air duct module for promoting uniform heat distribution and air circulation. The multi-layer circulating air duct design is a key structure to ensure uniform heating of the medicinal materials. Through reasonable air duct layout and multi-layer design, the hot air is evenly distributed in the device, avoiding local overheating and improving the consistency of baking quality.

[0024] Furthermore, the Chinese medicine low-temperature baking device system further includes an energy-saving heating module for reducing energy consumption. The energy-saving heating element is an important component for realizing energy saving and environmental protection of the device. Its high heat conversion efficiency and low heat loss rate can reduce energy consumption and production costs while ensuring the baking effect, which meets the requirements of modern green production.

[0025] Beneficial technical effects:

[0026] The integrated microprocessor and multiple sensors can automatically adjust the temperature according to the optimal baking curve of different medicinal materials. The microprocessor serves as the control core, processes sensor information, realizes real-time monitoring and precise adjustment of the baking temperature, and ensures that the effective ingredients of the medicinal materials are retained to the greatest extent; based on intelligent algorithms and a large amount of experimental data and mathematical model construction, it can predict the optimal baking curve of medicinal materials, automatically adjust the temperature, and avoid overheating and loss of effective ingredients. The system can analyze the changes in parameters such as temperature, humidity, and moisture content during baking, and accurately plan temperature adjustment plans;

[0027] A negative pressure environment is formed in the baking chamber to reduce the boiling point of water, accelerate water evaporation, and avoid the decomposition of effective ingredients caused by high temperature. It is especially suitable for medicinal materials containing heat-sensitive ingredients, which improves the quality of medicinal materials. The heat transfer model takes into account factors such as hot air speed, specific heat capacity of medicinal materials, thermal conductivity and density, optimizes heat transfer efficiency, and determines the optimal wind speed and heating plate temperature. The moisture content change kinetic model takes into account the initial and target moisture content of medicinal materials, baking time and ambient temperature, and optimizes the moisture evaporation rate by adjusting parameters to ensure the quality of medicinal materials.

[0028] Attached Figure 1 :

[0029] Figure 1 It is the work flow chart of the present invention. DETAILED DESCRIPTION

[0030] Example 1

[0031] (I) Low-temperature baking device for traditional Chinese medicine based on optimization of heat transfer efficiency

[0032] 1. Overall design of the device

[0033] The core of the low-temperature baking device for traditional Chinese medicine proposed by the present invention is to use a hot air circulation system to uniformly heat the medicinal materials by precisely controlling the temperature and wind speed of the heating plate. Multiple temperature sensors and humidity sensors are carefully arranged inside the device. These sensors are like sensitive tentacles, monitoring the status of the medicinal materials in real time, thereby ensuring the safety and effectiveness of the baking process. As a stable heating source, the precise control of the temperature of the heating plate is one of the keys to achieving low-temperature baking. Through the hot air circulation system, the hot air can flow evenly in the device, so that all parts of the medicinal materials can receive uniform heat transfer.

[0034] 2. Intelligent temperature control system

[0035] A major innovation of the present invention is the intelligent temperature control system. The system integrates a microprocessor and a variety of sensors to achieve real-time monitoring and precise adjustment of the temperature during the baking process. The microprocessor is like the brain of the device, receiving information from the sensor and processing it according to preset programs and algorithms. For different medicinal materials, due to their different optimal baking conditions, the system can automatically adjust the temperature setting according to the optimal baking curves of different medicinal materials. This intelligent temperature control method ensures that each batch of medicinal materials can be baked under the most suitable conditions, thereby maximizing the retention of the effective ingredients of the medicinal materials. For example, for precious medicinal materials such as ginseng, its effective ingredients can be best preserved within a specific low temperature range. The intelligent temperature control system can accurately control the temperature within this range to avoid the impact of excessively high or low temperatures on its efficacy.

[0036] 3. Heat transfer model and parameter optimization

[0037] In order to optimize the heat transfer efficiency, we introduced a new heat transfer model, which takes into account the speed of hot air υ(m / s), the specific heat capacity c of the medicinal material p (J / kg·K), thermal conductivity λ(W / m·K) and density ρ(kg / m 3 ) and other factors. The model expression is as follows:

[0038]

[0039] in:

[0040] q is the amount of heat transferred to the medicinal material per unit time (W);

[0041] A is the heating area (m 2 );

[0042] ·T h is the temperature of the heating plate (°C);

[0043] ·T m is the temperature of the medicinal material surface (°C);

[0044] ·d is the thickness of the medicinal material (m).

[0045] Through in-depth analysis of the above model, the optimal wind speed υ and heating plate temperature T can be determined. h . In actual operation, the most suitable wind speed and heating plate temperature can be calculated according to the characteristics of different medicinal materials, such as density, specific heat capacity, etc., combined with the expected heat transfer efficiency and baking effect. This process requires a lot of experimental data and theoretical calculations to achieve the best baking effect while minimizing energy consumption. For example, for medicinal materials with higher density and higher specific heat capacity, it may be necessary to appropriately increase the wind speed and adjust the heating plate temperature to ensure that the heat can be effectively transferred to the inside of the medicinal materials and achieve uniform baking.

[0046] Example 2

[0047] (II) Low-temperature baking device for traditional Chinese medicine based on dynamic temperature control system

[0048] 1. Device design and dynamic temperature control principle

[0049] The present invention also provides a low-temperature baking device for Chinese medicine with a dynamic temperature control system. The uniqueness of the device is that its dynamic temperature control system can automatically adjust the baking temperature according to the characteristics of the medicinal materials, effectively avoiding the loss of effective ingredients caused by overheating. The dynamic temperature control system predicts the optimal baking curve of the medicinal materials through an intelligent algorithm, realizing intelligent baking. The intelligent algorithm is constructed based on a large amount of medicinal material experimental data and mathematical models. It can analyze the changes in various parameters of the medicinal materials during the baking process, such as temperature, humidity, moisture content, etc., so as to accurately predict the optimal temperature adjustment scheme.

[0050] 2. Negative pressure drying technology

[0051] In order to further reduce the effective substances taken away when water evaporates, the present invention adopts negative pressure drying technology. A slight negative pressure environment is formed in the baking chamber, and this negative pressure environment has a special promoting effect on water evaporation. Under negative pressure, the boiling point of water decreases, thereby accelerating the evaporation rate of water. At the same time, compared with traditional normal pressure drying, negative pressure drying avoids the decomposition of effective ingredients caused by high temperature. For example, for some medicinal materials containing heat-sensitive effective ingredients, under negative pressure drying environment, even at lower temperatures, water can evaporate quickly, while the effective ingredients of the medicinal materials can still remain stable, greatly improving the quality of the medicinal materials.

[0052] 3. Dynamic model of moisture content change and parameter optimization In order to achieve dynamic temperature control, we developed a dynamic model based on the change of moisture content of medicinal materials. This model takes into account the initial moisture content W of the medicinal materials. i (%), target moisture content W f (%), baking time t (min) and ambient temperature T e (℃).

[0053] The model expression is as follows:

[0054] W(t)=W f +(W i -W f ) -kt

[0055] in:

[0056] ·W(t) is the moisture content of the medicinal material at time t (%);

[0057] k is the water evaporation rate constant (1 / min), which is related to the ambient temperature T e It can be determined through experiments.

[0058] By adjusting the k value, the water evaporation rate during the baking process can be optimized. In practical applications, the appropriate k value can be determined through experiments and calculations based on the initial moisture content and target moisture content of the medicinal materials, combined with different ambient temperatures. This ensures that the medicinal materials reach the predetermined moisture content in the shortest time while maintaining the stability of their active ingredients. For example, for medicinal materials with a high initial moisture content, at a suitable ambient temperature, the k value can be adjusted to speed up the evaporation of moisture without causing damage to the active ingredients.

[0059] Example 3

[0060] 1. Energy-saving heating elements

[0061] The present invention uses a new energy-saving heating material as a heating element. This material has a high heat conversion efficiency and a low heat loss rate. During the heating process, it can convert electrical energy into heat energy more efficiently, reducing the loss of energy during the conversion process. Compared with traditional heating elements, the energy consumption is greatly reduced while ensuring the baking effect. For example, in the long-term operation process, the device using the new energy-saving heating element can significantly reduce the electricity cost, and it also conforms to the concept of modern green production and reduces the energy pressure on the environment.

[0062] 2. Multi-layer circulation air duct design

[0063] Considering the importance of air flow during the baking process of traditional Chinese medicine, the present invention designs a multi-layer circulating air duct structure. The subtlety of this design is that it not only promotes the uniform distribution of heat, but also enhances air circulation. In the air duct, hot air can circulate along the designed path, so that the medicinal materials are heated more evenly. The multi-layer structure further refines the air flow path, effectively preventing the deterioration of medicinal materials caused by local overheating. For example, in each layer of the air duct, the medicinal materials can receive a stable and uniform supply of hot air, avoiding local high or low temperature areas caused by air flow dead corners, and ensuring the quality consistency of the entire baking process.

[0064] 3. Remote monitoring and maintenance platform

[0065] In order to facilitate user operation and maintenance, the present invention is also equipped with a remote monitoring and maintenance platform. The platform is connected to the baking device via the Internet, realizing real-time monitoring of the equipment status, fault diagnosis and remote control functions. Users can view the operating parameters of the equipment, such as temperature, wind speed, humidity, etc., anytime and anywhere on a remote terminal, such as a computer or a mobile phone. Once the equipment fails, the platform can promptly issue an alarm and diagnose the cause of the failure. At the same time, users can also remotely control the equipment through the platform, such as adjusting parameters such as temperature and wind speed. This remote monitoring and maintenance function greatly improves the convenience and reliability of the system, especially for large-scale production or equipment distributed in different locations, it has great advantages.

[0066] Example 4

[0067] (I) Equipment installation and debugging

[0068] First of all, install the device in a well-ventilated environment, which is an important condition for ensuring the safe operation of the device. Good ventilation can timely discharge the moisture and odor generated during the baking process, while avoiding safety hazards caused by heat accumulation. Make sure there are no flammable items around to prevent fires caused by unexpected situations.

[0069] After connecting the power supply, start the device for preheating. The preheating process is to allow the device to reach a stable initial state and allow the heating plate and other related components to reach the appropriate temperature. Set the initial parameters such as temperature, wind speed, etc. through the control panel. The setting of these initial parameters needs to be determined according to the type and characteristics of the medicinal materials. For example, for some tender medicinal materials, the temperature setting should be relatively low and the wind speed should be moderate to avoid damage to the medicinal materials.

[0070] (II) Placement and pretreatment of medicinal materials

[0071] Evenly spread the herbs to be baked on the baking tray. Even laying is an important prerequisite for ensuring that the herbs are heated evenly. If the herbs are piled too thick or unevenly distributed, it will lead to uneven heat transfer and affect the baking effect. After placing the baking tray inside the device, close the door cover to ensure that a relatively closed baking environment is formed inside the device to reduce heat loss and interference of external factors on the baking process.

[0072] (III) Baking process

[0073] Start the intelligent temperature control system to automatically adjust the baking temperature according to the type and characteristics of the medicinal materials. The intelligent temperature control system will adjust the temperature according to the preset optimal baking curve to ensure that the medicinal materials are baked at the appropriate temperature. At the same time, start the negative pressure drying system to accelerate the evaporation of water. The negative pressure environment created by the negative pressure drying system in the baking chamber can make the water escape from the medicinal materials faster while protecting the effective ingredients from being destroyed. The multi-layer circulating air duct design ensures that the medicinal materials are heated evenly. The hot air in the multi-layer circulating air duct circulates continuously, so that all parts of the medicinal materials can get a uniform heat supply, avoiding local overheating or insufficient baking.

[0074] (IV) Real-time monitoring and adjustment

[0075] During the baking process, the status of the medicinal materials is monitored in real time through temperature sensors and humidity sensors. These sensors continuously transmit the collected data to the microprocessor. The microprocessor analyzes the data and if it is found that the temperature, humidity and other parameters deviate from the preset range, the parameters are adjusted through the remote monitoring and maintenance platform if necessary. Users can view real-time data on the remote terminal and adjust parameters such as temperature and wind speed according to the situation to ensure the smooth progress of the baking process.

[0076] (V) Baking completion and discharging

[0077] When the medicinal material reaches the predetermined moisture content, the system automatically stops heating. This is achieved through the kinetic model of moisture content change and real-time monitoring of the sensor. When the moisture content of the medicinal material reaches the target value, it means that the baking process has been completed. At this time, open the door cover and take out the baked medicinal material. After the medicinal material is taken out and baked at low temperature, the active ingredients are well preserved, and the quality and efficacy can be guaranteed.

Claims

1. A low-temperature baking device system for traditional Chinese medicine, characterized in that: include: The heating module is used to provide a stable heating source and can cooperate with the intelligent temperature control system to achieve precise temperature regulation; The hot air circulation module generates stable and uniform hot air, ensuring that all parts of the medicinal materials can receive uniform heat transfer to achieve uniform baking; Temperature sensor and humidity sensor module are used to monitor the status of medicinal materials in real time and transmit the data to the microprocessor in time; Microprocessor module, used to control the temperature and wind speed of the heating plate, accurately adjust the temperature and wind speed of the heating plate according to sensor data and preset programs to achieve intelligent baking; Dynamic temperature control module, used to automatically adjust the baking temperature according to the characteristics of medicinal materials. The dynamic temperature control system should be able to adjust the baking temperature according to the characteristics of different medicinal materials. Negative pressure drying module, which stably forms a negative pressure environment in the baking chamber, lowers the boiling point of water, accelerates water evaporation, and improves baking efficiency; The remote monitoring and maintenance module is used to monitor and control the equipment status in real time, and the remote monitoring and maintenance platform; the heating module is controlled by a heat transfer model, and the model expression is: in q is the amount of heat transferred to the medicinal material per unit time (W); A is the heating area (m 2 ); T h is the temperature of the heating plate (°C); T m is the temperature of the medicinal material surface (°C); d is the thickness of the medicinal material (m).

2. The low-temperature baking device system of traditional Chinese medicine according to claim 1, characterized in that: The negative pressure drying module is controlled by a kinetic model of moisture content change, and the model expression is: W(t)=W f +(W i -W f )e -kt W(t) is the moisture content of the medicinal material at time t (%); k is the water evaporation rate constant (1 / min), which is related to the ambient temperature T e It can be determined through experiments.

3. The low-temperature baking device system of traditional Chinese medicine according to claim 1, characterized in that: The device also includes a multi-layer circulation duct module for promoting uniform distribution of heat and air circulation.

4. The low-temperature baking device system of traditional Chinese medicine according to claim 1, characterized in that: The device also includes an energy-saving heating module for reducing energy consumption.

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