Active pressurized extraction device and production system for traditional Chinese medicine preparations

Abstract

The present invention provides an active pressurization extraction device and a production system for Chinese medicine preparations, and relates to the field of Chinese medicine extraction equipment. The active pressurization extraction device includes an extraction tank body, a compressed gas pipeline, and a condensation reflux mechanism. The active pressurization extraction device can actively increase the pressure inside the extraction tank body, and at the same time does not affect the condensation reflux extraction process, so that the condensation reflux extraction can be carried out at a temperature higher than the boiling point of the solvent under the local air pressure, avoiding the risk of high-temperature steam damage and solvent loss caused by intermittent pressure relief in conventional high-temperature and high-pressure extraction; it can carry out condensation reflux extraction at the same temperature in an environment within a certain altitude range, avoiding unstable product quality caused by changes in extraction temperature; it can automatically and quickly adjust the heating amount to a reasonable level required for insulation through temperature sensor feedback, avoiding violent boiling and energy waste during the extraction process; it can avoid a large amount of foam from contacting the part of the extraction tank wall above the solvent liquid surface and forming drug scale after drying.

Description

Technical Field

[0001] The present invention relates to the field of Chinese medicine extraction equipment, and in particular to an active pressurization extraction device and a production system for Chinese medicine preparations. Background Art

[0002] Condensation reflux extraction technology can continuously and rapidly dissolve and enrich the effective ingredients in Chinese medicinal materials through solvents. It is suitable for most Chinese medicinal materials, has simple process and low cost.

[0003] Currently, condensation reflux extraction technology has been widely used in the production and research of traditional Chinese medicine preparations. However, current extraction tanks all use atmospheric pressure condensation reflux extraction and passive pressurization high-temperature and high-pressure extraction that relies on steam generated by solvent heating. Many challenges remain to be addressed in actual research and production. For example, condensation reflux is not permitted when using high-temperature and high-pressure extraction, and intermittent pressure relief is required. After the solvent reaches its boiling point at atmospheric pressure or the temperature set under passive pressurization extraction conditions, it is no longer possible to determine based on the temperature whether the heating amount is just enough to maintain the insulation state or exceeds the required heat. When extracting traditional Chinese medicines containing easily foaming ingredients such as saponins, heating to the target temperature is impossible due to severe foaming. The large amount of foam generated by violent boiling and foaming comes into contact with the area above the solvent level on the extraction tank wall, forming drug scale after drying, which is difficult to clean.

[0004] In view of this, this application is hereby filed. Summary of the Invention

[0005] The objects of the present invention include, for example, providing an active pressurized extraction device and a production system for traditional Chinese medicine preparations.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the present invention provides an active pressurized extraction device, comprising an extraction tank, a compressed gas pipeline, and a condensation reflux mechanism;

[0008] The extraction tank body is provided with a feed inlet, a compressed gas inlet, a reflux outlet and a reflux inlet; a heating jacket is provided on the outside of the extraction tank body, and a first pressure sensor and a temperature sensor are provided on the extraction tank body;

[0009] The compressed gas pipeline is in communication with the compressed gas inlet, and a first regulating valve is provided on the compressed gas pipeline;

[0010] The condensation reflux mechanism includes a condenser and a first oil-water separator. The condenser is provided with a cooling pipe and a reflux pipe. The inlet of the reflux pipe is connected to the reflux outlet. The outlet of the reflux pipe is connected to the inlet of the first oil-water separator. The outlet of the first oil-water separator is connected to the reflux inlet. The first oil-water separator is also provided with an exhaust port, and a second regulating valve is provided on the exhaust port.

[0011] In an optional embodiment, a U-shaped tube is further provided between the first oil-water separator and the reflux inlet, and both ends of the U-shaped tube are respectively connected to the first oil-water separator and the reflux inlet.

[0012] In an optional embodiment, the exhaust port is further connected to a filter, and the second regulating valve is arranged between the exhaust port and the filter.

[0013] In an optional embodiment, the compressed gas pipeline is provided with a second oil-water separator for purifying the compressed gas and a second pressure sensor for detecting the pressure of the compressed gas.

[0014] In an optional embodiment, the active pressurized extraction device further includes a heating mechanism, which includes a heating medium pipeline and a steam trap, a heating medium inlet and a heating medium outlet are provided on the heating jacket, the heating medium pipeline is connected to the heating medium inlet, the steam trap is connected to the heating medium outlet, and a third regulating valve and a third pressure sensor are provided on the heating medium pipeline.

[0015] In an optional embodiment, the active pressurized extraction device also includes a circulation pipeline, a circulating liquid outlet is provided at the bottom of the extraction tank body, a circulating liquid inlet is provided at the top of the extraction tank body, both ends of the circulation pipeline are connected to the circulating liquid inlet and the circulating liquid outlet respectively, and a circulation pump and a circulation pneumatic valve are provided on the circulation pipeline.

[0016] In an optional embodiment, one end of the circulating liquid inlet extends into the extraction tank body and protrudes from the tank wall of the extraction tank body, and the end protruding from the tank wall of the extraction tank body has a beveled surface.

[0017] In an optional embodiment, a filter screen is further provided at the bottom of the extraction tank, and the circulating liquid outlet is located below the filter screen.

[0018] In an optional embodiment, the active boost extraction device further includes a control mechanism, which is configured to receive detection signals from the first pressure sensor and the temperature sensor and control the openings of the first regulating valve and the second regulating valve.

[0019] In a second aspect, the present invention provides a production system for a traditional Chinese medicine preparation, comprising the active pressurization extraction device as described in any one of the aforementioned embodiments.

[0020] The beneficial effects of the embodiments of the present invention include, for example:

[0021] An embodiment of the present invention provides an active pressurization extraction device, which arranges a compressed gas pipeline and a condensation reflux mechanism outside the extraction tank body. The compressed gas pipeline can actively increase the pressure inside the extraction tank body, and at the same time does not affect the condensation reflux operation extraction process, so that the condensation reflux extraction can be carried out at a temperature higher than the boiling point of the solvent under the local air pressure, avoiding the risk of high-temperature steam damage and solvent loss caused by intermittent pressure relief in conventional high-temperature and high-pressure extraction; it can carry out condensation reflux extraction at the same temperature in an environment within a certain altitude range, avoiding unstable product quality due to changes in extraction temperature; it can automatically and quickly adjust the heating amount to a reasonable level required for insulation through temperature sensor feedback, avoiding violent boiling and energy waste during the extraction process; it can suppress the bubble phenomenon of Chinese medicinal materials containing easily foaming ingredients such as saponins during the extraction process, avoiding the inability to extract at the specified temperature due to foaming, which ultimately affects the extraction effect; at the same time, because it can suppress violent boiling and foaming, it can avoid a large amount of foam from contacting the part of the extraction tank wall above the solvent liquid surface and forming medicinal scale after drying. The extraction temperature is stable and controllable within a certain range of different environments, stabilizing the extraction process quality. The amount of heat preservation and heating is automatically and accurately controlled, reducing energy waste. The formation of drug scale on the tank wall is reduced, making cleaning and maintenance easier. Furthermore, the operational safety of alcohol extraction and high-temperature extraction processes is improved. Furthermore, the production system for traditional Chinese medicine preparations provided in this application includes an active pressurized extraction device, which can extract various traditional Chinese medicine raw materials with safe operation and stable extraction processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic structural diagram of an active pressurized extraction device provided in an embodiment of the present application;

[0024] Figure 2 This is a schematic structural diagram of the extraction tank body of the active pressurized extraction device provided in an embodiment of the present application.

[0025] Icon: 100-Active pressurized extraction device;

[0026] 110 - extraction tank; 111 - feed port; 112 - compressed gas inlet; 1131 - reflux outlet; 1132 - reflux inlet; 1141 - circulating liquid inlet; 1142 - circulating liquid outlet; 115 - stirring inlet; 1151 - stirring mechanism; 116 - filter screen; 117 - first pressure sensor; 118 - temperature sensor; 119 - heating jacket; 1191 - heating medium inlet; 1192 - heating medium outlet;

[0027] 120 - heating mechanism; 121 - heating medium pipeline; 122 - steam trap; 123 - third regulating valve; 124 - third pressure sensor;

[0028] 130 - compressed gas pipeline; 131 - first regulating valve; 132 - second oil-water separator; 133 - second pressure sensor;

[0029] 140 - condensation reflux mechanism; 141 - condenser; 142 - first oil-water separator; 143 - cooling pipe; 144 - reflux pipe; 145 - U-shaped pipe; 146 - exhaust port; 147 - second regulating valve; 148 - filter;

[0030] 150-circulation pipeline; 151-circulation pump; 152-circulation pneumatic valve; 153-discharge pipeline; 154-discharge pneumatic valve;

[0031] 160-control mechanism; 161-PLC controller; 162-touch screen. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0037] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0038] Example

[0039] See also Figure 1 This embodiment provides an active pressurized extraction device 100 , which includes an extraction tank 110 , a heating mechanism 120 , a compressed gas pipeline 130 , a condensation reflux mechanism 140 , a circulation pipeline 150 and a control mechanism 160 .

[0040] See also Figure 2 The extraction tank body 110 is a cylindrical tank structure, which is used to extract Chinese medicinal raw materials.

[0041] The extraction tank body 110 in this embodiment is provided with a feed port 111, a compressed gas inlet 112, a reflux outlet 1131, a reflux inlet 1132, a circulating liquid inlet 1141, a circulating liquid outlet 1142 and a stirring inlet 115. The feed port 111 is provided at the upper portion of the extraction tank body 110 for introducing raw materials and water into the extraction tank body 110; the compressed gas inlet 112 is provided at the upper portion of the extraction tank body 110 for introducing compressed gas into the extraction tank body 110 for regulating the pressure; the reflux outlet 1131 is provided at the upper portion of the extraction tank body 110 for discharging the heated steam in the extraction tank body 110 into the condensation reflux mechanism 140 for condensation; the reflux inlet 1132 is provided at the upper portion of the extraction tank body 110 for converting the steam discharged from the reflux outlet 1131 into liquid after condensation by the condensation reflux mechanism 140 and refluxing it into the extraction tank body 110; The circulating liquid outlet 1142 is arranged at the lower part of the extraction tank body 110, and the circulating liquid inlet 1141 is arranged at the upper part of the extraction tank body 110. The circulating liquid outlet 1142 is used to draw out the liquid in the extraction tank body 110 and circulate it to the circulating liquid inlet 1141 through the circulation pipeline 150, and then enter the extraction tank body 110 again. The continuous circulation of the circulating liquid plays a role in circulating and stirring the material in the extraction tank body 110; the stirring inlet 115 is arranged at the upper center position of the extraction tank body 110, and the stirring mechanism 1151 can be inserted into the extraction tank body 110 from the stirring inlet 115, and is used to stir and mix the material in the extraction tank body 110.

[0042] In this embodiment, one end of the circulating liquid inlet 1141 extends into the extraction tank body 110 and protrudes from the tank wall of the extraction tank body 110. The end protruding from the tank wall of the extraction tank body 110 has a beveled surface. In this application, by designing the circulating liquid inlet 1141 as a beveled surface, it is possible to prevent the circulating liquid from directly falling into the extraction liquid below without contacting the tank wall of the extraction tank body 110 when entering the extraction tank body 110. This also prevents the refluxed extraction liquid from contacting the area above the solvent level of the extraction tank wall and forming drug scale after drying, greatly reducing the difficulty of post-extraction cleaning and maintenance.

[0043] In this embodiment, in order to ensure the normal circulation of the circulating liquid, in this application, a filter screen 116 is also provided at the bottom of the extraction tank body 110, and the circulating liquid outlet 1142 is located below the filter screen 116. The setting of the filter screen 116 can effectively prevent the material from being discharged through the circulating liquid outlet 1142, and the filter screen 116 can ensure that only the liquid passes through and circulates.

[0044] Furthermore, in order to effectively control the pressure and temperature in the extraction tank body 110 , in this embodiment, a first pressure sensor 117 and a temperature sensor 118 are provided on the extraction tank body 110 , and both the first pressure sensor 117 and the temperature sensor 118 are connected to the control mechanism 160 .

[0045] Please refer to Figure 1 and Figure 2 The heating mechanism 120 is used to heat the extraction tank body 110 so that the material in the extraction tank body 110 can be extracted at a certain temperature.

[0046] Specifically, a heating jacket 119 is provided on the outside of the extraction tank 110. The heating jacket 119 is provided with a heating medium inlet 1191 and a heating medium outlet 1192. The heating mechanism 120 includes a heating medium pipeline 121 and a steam trap 122. The heating medium pipeline 121 is connected to the heating medium inlet 1191, and the steam trap 122 is connected to the heating medium outlet 1192. There are many choices of heating medium, such as high-temperature water, high-temperature steam, etc. Specifically, in this embodiment, high-temperature steam is used for heating. Therefore, the heating medium inlet 1191 of this application is provided at the upper portion of the heating jacket 119, and the heating medium outlet 1192 is provided at the lower portion of the heating jacket 119. The high-temperature steam enters the heating jacket 119 from the heating medium inlet 1191 and heats the material in the extraction tank 110 through heat transfer. After heat exchange, the high-temperature steam partially cools and becomes liquid. At this time, the liquid can be discharged by opening the steam trap 122 without exhausting the high-temperature steam. A third regulating valve 123 and a third pressure sensor 124 are provided on the heating medium pipeline 121. The third regulating valve 123 is used to adjust the input amount of the heating medium, and the third pressure sensor 124 is used to monitor the pressure on the heating medium pipeline 121. In this embodiment, the third regulating valve 123 and the third pressure sensor 124 are both connected to the control mechanism 160.

[0047] Please refer to Figure 1 and Figure 2 The compressed gas pipeline 130 is used to introduce compressed gas into the extraction tank body 110, thereby actively pressurizing the extraction tank body 110.

[0048] Specifically, compressed gas line 130 is connected to compressed gas inlet 112 and is equipped with a first regulating valve 131, a second oil-water separator 132, and a second pressure sensor 133. Second pressure sensor 133 is located between first regulating valve 131 and second oil-water separator 132, and first regulating valve 131 is located between second pressure sensor 133 and extraction tank 110. In other words, compressed gas is first purified by first oil-water separator 142, then monitored by second pressure sensor 133 for pressure on compressed gas line 130, and finally, after adjusting the opening of first regulating valve 131 to an appropriate degree, is passed into extraction tank 110. Both first regulating valve 131 and second pressure sensor 133 are connected to control mechanism 160.

[0049] Please refer to Figure 1 and Figure 2 The condensation reflux mechanism 140 is used to condense the steam generated after heating in the extraction tank body 110 and finally reflux it into the extraction tank body 110.

[0050] Specifically, the condensation reflux mechanism 140 includes a condenser 141 and a first oil-water separator 142. The condenser 141 is provided with a cooling pipe 143 and a reflux pipe 144. The inlet of the reflux pipe 144 is connected to the reflux outlet 1131, and the outlet of the reflux pipe 144 is connected to the inlet of the first oil-water separator 142. The outlet of the first oil-water separator 142 is connected to the reflux inlet 1132. The first oil-water separator 142 can separate the oil and water in the steam generated by heating. Part of the heavy oil can be discharged from the bottom of the first oil-water separator 142, and the light oil and water can enter the extraction tank 110 again from the reflux inlet 1132.

[0051] A U-shaped tube 145 is further provided between the first oil-water separator 142 and the reflux inlet 1132. The ends of the U-shaped tube 145 are respectively connected to the first oil-water separator 142 and the reflux inlet 1132. The provision of the U-shaped tube 145 forms a U-shaped water seal within the tube 145. The U-shaped water seal effectively prevents steam generated by heating within the extraction tank 110 from being discharged through the reflux inlet 1132, thereby ensuring unidirectional condensation reflux.

[0052] In addition, the first oil-water separator 142 in the present application is also provided with an exhaust port 146, a second regulating valve 147 is provided on the exhaust port 146, and a filter 148 is also connected to the exhaust port 146. The second regulating valve 147 is arranged between the exhaust port 146 and the filter 148, and the second regulating valve 147 is connected to the control mechanism 160. The setting of the exhaust port 146 can balance the air pressure, especially when the compressed gas pipeline 130 introduces compressed gas into the extraction tank body 110 for pressurization. At this time, the pressure in the extraction tank body 110 can be fine-tuned by opening the second regulating valve 147 to ensure that the increased pressure in the extraction tank body 110 is constant at the set value. The filter 148 can filter the gas discharged during the pressurization process to avoid environmental pollution.

[0053] Please refer to Figure 1 and Figure 2 The circulation pipeline 150 is used to suck the circulating liquid in the extraction tank 110 from the bottom and circulate it to the top, so as to achieve mixing of the materials through the self-circulation of the liquid.

[0054] Specifically, the two ends of the circulation line 150 are connected to the circulation liquid inlet 1141 and the circulation liquid outlet 1142, respectively. The circulation line 150 is provided with a circulation pump 151 and a circulation pneumatic valve 152. The circulation pump 151 can pump the liquid at the bottom to the top for circulation, and the circulation pneumatic valve 152 can open and close the circulation line 150.

[0055] In the present application, after the extraction is completed, the discharge can be achieved by connecting a discharge pipeline 153 to the circulation pipeline 150. Specifically, the discharge pipeline 153 is arranged between the circulation pump 151 and the circulation pneumatic valve 152, and the discharge pipeline 153 is provided with a discharge pneumatic valve 154 for controlling whether to discharge the material.

[0056] Please refer to Figure 1 and Figure 2 , the control mechanism 160 is used to automatically control all valves.

[0057] Specifically, the first pressure sensor 117 can detect the pressure signal inside the extraction tank body 110 and feed it back to the control mechanism 160. The second pressure sensor 133 can detect the pressure signal on the compressed gas pipeline 130 and feed it back to the control mechanism 160. The control mechanism 160 controls the opening of the first regulating valve 131 on the compressed gas pipeline 130 and the second regulating valve 147 on the first oil-water separator 142 according to the pressure signal of the first pressure sensor 117 and the pressure signal of the second pressure sensor 133, thereby adjusting the pressure inside the extraction tank body 110; the temperature sensor 118 can detect the temperature signal inside the extraction tank body 110 and feed it back to the control mechanism 160. The third pressure sensor 124 can monitor the pressure signal on the heating medium pipeline 121. The control mechanism 160 controls the third regulating valve 123 on the heating medium pipeline 121 according to the temperature signal of the temperature sensor 118 and the pressure signal of the third pressure sensor 124.

[0058] The control mechanism 160 in this embodiment includes a PLC controller 161 and a touch screen 162. The PLC controller 161 can perform automatic control, and the operator can observe the parameters of each sensor and the opening of each valve on the touch screen 162 in a timely manner, and can also perform manual adjustment when necessary.

[0059] The active pressurization extraction device 100 provided in the present application can realize active pressurization extraction in the tank, so that the condensation reflux extraction can be carried out at a temperature higher than the boiling point of the solvent under the local air pressure, avoiding the risk of high-temperature steam damage and solvent loss caused by intermittent pressure relief during conventional high-temperature and high-pressure extraction; it can carry out condensation reflux extraction at the same temperature in an environment within a certain altitude range, avoiding unstable product quality caused by changes in extraction temperature; it can automatically and quickly adjust the heating amount to a reasonable level required for insulation through feedback from the temperature sensor 118, avoiding boiling and energy waste during the extraction process; it can inhibit the production of easily soluble substances such as saponins. The bubble phenomenon of Chinese medicinal materials with foaming components during the extraction process can prevent the extraction from being unable to be performed at the specified temperature due to foaming, which ultimately affects the extraction effect; at the same time, because it can suppress boiling and foaming, it can prevent a large amount of foam from contacting the part of the extraction tank wall above the solvent liquid level and forming medicinal scale after drying. The oblique cutting of the circulation feed port 111 can also prevent the reflux extract from contacting the part of the extraction tank wall above the solvent liquid level and forming medicinal scale after drying, greatly reducing the difficulty of cleaning and maintenance after extraction; when the compressed gas is replaced from compressed air to an inert gas such as carbon dioxide or nitrogen during alcohol extraction, the safety of the alcohol extraction process operation can be improved.

[0060] The following provides a specific example for illustration:

[0061] Water was used as the solvent for the atmospheric boiling point extraction in Nanchang, our company's location. Nanchang has an average altitude of 46.7 meters, and its boiling point at atmospheric pressure is 99.9°C. The active boost pressure was set to 0.2 MPa, at which the boiling point of water is 105°C, and the compressed gas was compressed air.

[0062] Medicinal materials and water are added according to the medicinal material processing requirements. The feed port 111 is closed and sealed. The PLC controller 161 controls the opening of the condenser reflux mechanism 140 and the circulation pneumatic valve 152 on the circulation line 150. The PLC controller 161 also controls the third regulating valve 123 to pass steam into the heating jacket 119 for heating. The extract is circulated by the circulation pump 151. When it flows through the obliquely cut circulation feed port 111, the extract falls directly into the extract below without flowing through the tank wall. When the temperature sensor 118 detects that the temperature of the extract in the extraction tank 110 reaches 94°C, it provides feedback to the PLC controller 161. Based on the feedback from the first pressure sensor 117, the PLC controller 161 controls the openings of the first regulating valve 131 and the second regulating valve 147 to maintain the pressure in the extraction tank 110 at 0.2 MPa. When the temperature inside the tank is no higher than 99.9°C, the steam generated by the heated water is condensed by condenser 141. The pressure inside extraction tank 110 is at least 0.2 MPa higher than the sum of the saturated vapor pressure of water at this temperature and the surface tension of the extracting liquid, preventing bubbling inside extraction tank 110. Furthermore, the temperature inside extraction tank 110 is lower than the boiling point of water (105°C) at this pressure, preventing bumping inside the tank. Since the temperature inside extraction tank 110 can exceed the set extraction temperature (99.9°C), PLC controller 161 adjusts the insulation steam pressure to an appropriate level by controlling third regulating valve 123 based on feedback from temperature sensor 118. Extraction is completed according to the process.

[0063] When using this active pressurized extraction tank, the quality of the extraction process can be effectively controlled, the formation of drug scale on the tank wall can be reduced, and energy consumption can be effectively saved, which is convenient for increasing output value and promoting production.

[0064] In summary, the embodiment of the present invention provides an active pressurization extraction device 100. By disposing a compressed gas pipeline 130 and a condensation reflux mechanism 140 outside the extraction tank body 110, the compressed gas pipeline 130 can actively increase the pressure in the extraction tank body 110 without affecting the condensation reflux extraction process. This allows the condensation reflux extraction to be performed at a temperature higher than the boiling point of the solvent under local atmospheric pressure, avoiding the risk of high-temperature steam damage and solvent loss caused by intermittent pressure relief in conventional high-temperature and high-pressure extraction. The condensation reflux extraction can be performed at the same temperature in an environment within a certain altitude range, avoiding unstable product quality due to changes in the extraction temperature. The heating amount can be automatically and quickly adjusted to a reasonable level required for insulation through feedback from the temperature sensor 118, avoiding violent boiling and energy waste during the extraction process. The bubbling phenomenon of Chinese medicinal materials containing easily foaming components such as saponins during the extraction process can be suppressed, avoiding the inability to perform extraction at the specified temperature due to bubbling, which ultimately affects the extraction effect. At the same time, because violent boiling and bubbling can be suppressed, a large amount of foam can be prevented from contacting the part of the extraction tank wall above the solvent liquid level and forming medicinal scale after drying. The extraction temperature is stable and controllable within a certain range of different environments, stabilizing the extraction process quality. The amount of heat preservation and heating is automatically and precisely controlled, reducing energy waste. The formation of drug scale on the tank wall is reduced, making cleaning and maintenance easier. Furthermore, the operational safety of the alcohol extraction and high-temperature extraction processes is improved. Furthermore, the production system for traditional Chinese medicine preparations provided herein includes an active pressurized extraction device 100, which can extract various traditional Chinese medicine raw materials with safe operation and stable extraction processes.

[0065] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. An active pressurization extraction device, characterized in that: It includes extraction tank, compressed gas pipeline and condensation reflux mechanism; The extraction tank body is provided with a feed inlet, a compressed gas inlet, a reflux outlet and a reflux inlet; a heating jacket is provided on the outside of the extraction tank body, and a first pressure sensor and a temperature sensor are provided on the extraction tank body; The compressed gas pipeline is in communication with the compressed gas inlet, and a first regulating valve is provided on the compressed gas pipeline; The condensation reflux mechanism includes a condenser and a first oil-water separator, the condenser is provided with a cooling pipe and a reflux pipe, the inlet of the reflux pipe is connected to the reflux outlet, the outlet of the reflux pipe is connected to the inlet of the first oil-water separator, the outlet of the first oil-water separator is connected to the reflux inlet, the first oil-water separator is further provided with an exhaust port, and the exhaust port is provided with a second regulating valve; The compressed gas pipeline is provided with a second oil-water separator for purifying the compressed gas and a second pressure sensor for detecting the pressure of the compressed gas; The active pressurized extraction device further includes a heating mechanism, which includes a heating medium pipeline and a steam trap. The heating jacket is provided with a heating medium inlet and a heating medium outlet. The heating medium pipeline is connected to the heating medium inlet, and the steam trap is connected to the heating medium outlet. The heating medium pipeline is provided with a third regulating valve and a third pressure sensor. The active boost extraction device also includes a control mechanism, which controls the opening of the first regulating valve on the compressed gas pipeline and the second regulating valve on the first oil-water separator according to the pressure signal of the first pressure sensor and the pressure signal of the second pressure sensor; the control mechanism controls the third regulating valve on the heating medium pipeline according to the temperature signal of the temperature sensor and the pressure signal of the third pressure sensor.

2. The active pressurization extraction device according to claim 1, characterized in that: A U-shaped tube is further provided between the first oil-water separator and the reflux inlet, and both ends of the U-shaped tube are respectively connected to the first oil-water separator and the reflux inlet.

3. The active pressurization extraction device according to claim 1, characterized in that: The exhaust port is further connected to a filter, and the second regulating valve is arranged between the exhaust port and the filter.

4. The active pressurization extraction device according to any one of claims 1 to 3, characterized in that: The active pressurized extraction device also includes a circulation pipeline. A circulating liquid outlet is provided at the bottom of the extraction tank body, and a circulating liquid inlet is provided at the top of the extraction tank body. The two ends of the circulation pipeline are respectively connected to the circulating liquid inlet and the circulating liquid outlet. A circulation pump and a circulation pneumatic valve are provided on the circulation pipeline.

5. The active pressurization extraction device according to claim 4, characterized in that: One end of the circulating liquid inlet extends into the extraction tank body and protrudes from the tank wall of the extraction tank body, and one end protruding from the tank wall of the extraction tank body has a beveled surface.

6. The active pressurization extraction device according to claim 4, characterized in that: A filter screen is also provided at the bottom of the extraction tank, and the circulating liquid outlet is located below the filter screen.

7. A production system for traditional Chinese medicine preparations, characterized in that: It includes the active pressurization extraction device as described in any one of claims 1-6.

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