Continuous traditional Chinese medicine extraction and concentration device

Abstract

The invention relates to the technical field of traditional Chinese medicine preparation production, and discloses a continuous traditional Chinese medicine extraction and concentration device which comprises a waste heat tank, a heating tank and a concentration tank which are sequentially connected along a processing procedure, a waste heat collecting box is installed on a gas outlet of the heating tank, a second liquid pump is arranged at the output end of the heating tank and connected with the input end of the concentration tank through a pipeline, and the waste heat collecting box preheats original liquid medicine in a waste heat tank through waste heat generated by high-temperature gas; a condensation assembly, a second pipeline fan and a hot drying assembly are sequentially connected between the air inlet and the air outlet in the concentration tank. Continuous production is realized through process separation of the waste heat tank, the heating tank and the concentration tank, and continuous input of original liquid medicine is realized; the condensation assembly is connected between the air outlet and the air inlet of the concentration tank, and the pipeline fan and the hot drying assembly jointly form a closed space which does not interact with outside air, so that the concentration stability is higher, and the concentration efficiency and the concentration precision are higher.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of traditional Chinese medicine preparation production, and in particular to a continuous traditional Chinese medicine extraction and concentration device. Background Art

[0002] The concentration of traditional Chinese medicine is a key process in the production of traditional Chinese medicine preparations. Its core is to retain active ingredients and increase the concentration of effective substances by evaporating excess water in the medicine solution. Since traditional Chinese medicine contains many heat-sensitive ingredients, the general concentration process requires setting an appropriate temperature for concentration according to the type of medicine solution.

[0003] The current mainstream technologies include single-tank intermittent concentration and double-effect evaporator. Among them, single-tank intermittent concentration uses a single container to heat the stored liquid medicine, so that the excess water in the liquid medicine is evaporated. It is widely used because of its simple structure and low cost. However, after completing a single liquid medicine concentration, it needs to be frequently started and stopped to add the original liquid medicine to be concentrated.

[0004] However, the above technical solution still has the problem of insufficient continuity in the method of adding liquid medicine. If liquid medicine is continuously added in a single tank for concentration, it will make the concentration change of the liquid medicine in the tank difficult to control, and the time for heating the concentrated liquid medicine will be prolonged, which wastes heat energy. In addition, the steam in the tank interacts directly with the outside air. In order to ensure that the warm and humid air can be discharged quickly, a fan is generally installed on the tank body to accelerate air circulation. Therefore, it is easily affected by the temperature and humidity of the outside air, which may make it difficult to guarantee the concentration accuracy of the concentrated liquid medicine finally discharged. Summary of the Invention

[0005] To this end, an embodiment of the present invention provides a continuous Chinese medicine extraction and concentration device to solve the problems of insufficient continuity in the method of adding medicinal liquid in the prior art and difficulty in ensuring the concentration accuracy of the concentrated medicinal liquid finally discharged.

[0006] In order to achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0007] A continuous Chinese medicine extraction and concentration device includes a waste heat tank, a heating tank, and a concentration tank connected in sequence along the processing steps:

[0008] The residual heat tank is used to store the continuously input original liquid medicine;

[0009] The heating tank is used to store the preheated liquid medicine output by the waste heat tank and heat the preheated liquid medicine to a set temperature;

[0010] The concentration tank is used to store the set temperature liquid output by the heating tank, and is used to concentrate the set temperature liquid to a specified concentration before discharging it;

[0011] The heating tank is provided with an air inlet and an air outlet, a first duct fan is installed on the air inlet of the heating tank, an air guide pipe connected to the output end of the first duct fan is provided inside the heating tank, a waste heat collection box is installed on the air outlet of the heating tank, the output end of the heating tank is connected to the input end of the concentration tank via a second liquid pump, and the waste heat collection box uses the waste heat generated by the high-temperature gas to preheat the original liquid medicine in the waste heat tank;

[0012] The concentration tank is provided with an air inlet and an air outlet, between which are connected in sequence a condensation component, a second duct fan and a heat drying component. The concentration tank, the condensation component, the second duct fan and the heat drying component together constitute a closed space that does not interact with the external air. The condensation component is connected to a first compressor to supply a cold source of energy, and the heat drying component is connected to a second compressor to supply a heat source of energy.

[0013] As a preferred solution of the present invention, the waste heat tank includes an inner tank body and an outer tank body. The inner tank body is used to store the continuously input original medicinal liquid. The output end of the inner tank body is provided with a first liquid pump and is connected to the input end of the heating tank through a pipeline. There is a gap between the outer side of the inner tank body and the inner side of the outer tank body. A spirally distributed spiral heat exchange tube is provided between the inner tank body and the outer tank body, and the input and output ports of the spiral heat exchange tube both extend to the outside of the outer tank body.

[0014] As a preferred solution of the present invention, the waste heat collection box includes an air guide frame docked with the air outlet of the heating tank, the outlet end of the air guide frame is inclined downward, a first heat conducting pipe is fixedly connected to the interior of the air guide frame, a plurality of first heat conducting fins arranged at equal intervals are connected to the first heat conducting pipe, both ends of the first heat conducting pipe pass through the air guide frame, a fourth liquid pump is installed at one end of the air guide frame, the output end of the fourth liquid pump is connected to the input end of the spiral heat exchange tube through a pipe, the other end of the air guide frame is connected to the output end of the spiral heat exchange tube through a pipe, and the orientation of the plurality of first heat conducting fins is consistent with that of the air guide frame;

[0015] The waste heat collection box exchanges heat with the high-temperature gas discharged from the heating tank, and heats the original liquid medicine stored in the inner tank through the spiral heat exchange tube.

[0016] As a preferred embodiment of the present invention, the portion of the air guide tube located inside the heating tank is vertically distributed, and the air guide tube is provided with two vertical chutes distributed along its length, the two vertical chutes are connected to the interior of the air guide tube, and the width of the vertical chutes increases from top to bottom;

[0017] Among them, one of the vertical slide grooves is located on the air duct near the inner wall of the heating tank.

[0018] As a preferred solution of the present invention, an air barrier assembly is further provided inside the heating tank, and the air barrier assembly includes a vertically distributed sliding rod, the upper and lower ends of the sliding rod are fixedly connected to the inner wall of the heating tank by a connecting block, a floating block is slidably sleeved on the sliding rod, and a connecting rod extending obliquely upward is fixedly connected to the floating block, one end of the connecting rod passes through a vertical sliding groove and extends to the inside of the air guide pipe and is connected to an air barrier slider, and the floating block slides on the sliding rod and can be raised and lowered along the inside of the air guide pipe together with the air barrier slider;

[0019] Wherein, the width of the connecting rod is smaller than the minimum width of the vertical sliding groove.

[0020] As a preferred embodiment of the present invention, the condensing assembly includes a condensing box docked with the air outlet of the concentrator tank, the output end of the condensing box docked with the input end of the second duct fan, a second heat conducting pipe is provided inside the condensing box, and a plurality of second heat conducting fins arranged at equal intervals are provided on the second heat conducting pipe, and both ends of the second heat conducting pipe extend out of the condensing box and are connected to the input end and output end of the first compressor;

[0021] The heat drying assembly includes a heat drying box docked with the output end of the second duct fan, the output end of the heat drying box docked with the air inlet of the heating tank, a third heat conducting pipe is provided inside the heat drying box, and a plurality of third heat conducting fins are arranged at equal intervals on the third heat conducting pipe. Both ends of the third heat conducting pipe extend out of the heat drying box and are connected to the input end and output end of the second compressor.

[0022] As a preferred solution of the present invention, a vertically distributed downpipe is installed at the bottom end of the condensation box, the bottom of the inner side of the condensation box is a conical structure, and the top end of the downpipe extends to the interior of the condensation box and is located at the bottom of the conical structure, the bottom output end of the downpipe is connected to a solenoid valve, and a liquid level sensor for detecting the water level therein is provided inside the downpipe, and the liquid level sensor is electrically connected to the solenoid valve;

[0023] A one-way air valve for balancing the air pressure inside the condensation box is installed on the top of the condensation box.

[0024] As a preferred solution of the present invention, a liquid density sensor for detecting the concentration of the liquid medicine is provided inside the concentration tank, and a third liquid pump electrically connected to the liquid density sensor is installed on the output end of the concentration tank.

[0025] As a preferred solution of the present invention, the interior of the concentrating tank is provided with vertically distributed partitions, the top and both side edges of the partitions are connected to the inner wall of the concentrating tank, the bottom end of the partition is always higher than the liquid level inside the concentrating tank, and the partition can divide the interior of the concentrating tank into a U-shaped space, and the air inlet and air outlet of the concentrating tank are respectively located at the two ends of the U-shaped space.

[0026] The embodiments of the present invention have the following advantages:

[0027] (1) The present invention provides a waste heat tank, a heating tank, and a concentration tank that are spatially independent, so that the process of processing the liquid to be concentrated into the concentrated liquid of the required concentration is divided into relatively independent preheating, heating, and concentration steps. Therefore, the continuous input of the original liquid to be concentrated into the waste heat tank will not affect the liquid in the heating tank and the concentration tank, thereby realizing the continuous input of the original liquid.

[0028] (2) The present invention accelerates the interaction with the outside air by continuously pumping air into the heating tank, thereby facilitating the rapid discharge of the warm and humid air in the heating tank. The present invention accelerates the exchange with the outside air by continuously pumping air into the heating tank, thereby facilitating the rapid discharge of the warm and humid air. On the one hand, the concentration of the liquid medicine in the heating tank can be made higher, thereby improving the efficiency of the subsequent concentration tank in concentrating the input liquid medicine; on the other hand, a waste heat recovery structure is provided at the place where the warm and humid air is discharged from the heating tank to preheat the waste heat tank, thereby achieving the purpose of saving energy consumption.

[0029] (3) The present invention connects a condensing component, a duct fan and a heat drying component between the air outlet and the air inlet of the concentration tank to form a closed space that does not interact with the outside air. The duct fan controls the warm and humid air in the concentration tank to first pass through the condensing component and then be cooled to precipitate a large amount of water. The air is then heated by the heat drying component to be dry air and then re-enters the concentration tank to form an internal air circulation. Compared with the method of interacting with the outside air, the concentration stability is higher, and it has higher concentration efficiency and more precise concentration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0031] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0032] Figure 1 This is a schematic diagram of the overall structure of the device in an embodiment of the present invention;

[0033] Figure 2 This is a cross-sectional view of the connection between the waste heat tank and the heating tank in an embodiment of the present invention;

[0034] Figure 3 Schematic diagram of the structure of the air isolation component in an embodiment of the present invention;

[0035] Figure 4 In the embodiment of the present invention Figure 2 A magnified view of middle A;

[0036] Figure 5 is a cross-sectional view of a concentration tank according to an embodiment of the present invention;

[0037] Figure 6 A top cross-sectional view of the condensing assembly, the second duct fan, and the heat drying assembly in an embodiment of the present invention;

[0038] Figure 7 It is a front cross-sectional view of the condensation component in an embodiment of the present invention.

[0039] In the picture:

[0040] 1- Waste heat tank; 2- Heating tank; 3- Concentration tank; 4- Condensation assembly; 5- Second duct fan; 6- Heat drying assembly; 7- First compressor; 8- Second compressor;

[0041] 11-inner tank body; 12-outer tank body; 13-spiral heat exchange tube; 14-first liquid pump;

[0042] 21-first duct fan; 22-air guide pipe; 23-waste heat collection box; 24-air isolation component; 25-second liquid pump;

[0043] 221 - vertical slide; 231 - air guide frame; 232 - first heat pipe; 233 - first heat conducting fin; 234 - fourth liquid pump; 241 - slide rod; 242 - connecting block; 243 - floating block; 244 - connecting rod; 245 - air isolation slider;

[0044] 31-Liquid density sensor; 32-Third liquid pump; 33-Separator;

[0045] 41 - condensation box; 42 - second heat conduction pipe; 43 - second heat conduction fin;

[0046] 411- sewer pipe; 412- solenoid valve; 413- liquid level sensor; 414- one-way air valve;

[0047] 61-heat drying box; 62-third heat conducting pipe; 63-third heat conducting fin. DETAILED DESCRIPTION

[0048] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0049] like Figure 1-7 As shown, this embodiment provides a continuous Chinese medicine extraction and concentration device, including a waste heat tank 1, a heating tank 2 and a concentration tank 3 connected in sequence along the processing steps; the waste heat tank 1 is used to store the continuously input original medicinal liquid; the heating tank 2 is used to store the preheated medicinal liquid output by the waste heat tank 1, and to heat the preheated medicinal liquid to a set temperature; the concentration tank 3 is used to store the set temperature medicinal liquid output by the heating tank 2, and to concentrate the set temperature medicinal liquid to a specified concentration and then discharge it.

[0050] The present invention realizes the coordinated operation of the waste heat tank 1, the heating tank 2, and the concentration tank 3 and a closed thermal circulation system, wherein the waste heat tank 1 and the concentration tank 3 do not have the function of autonomous heating, and the heating tank 2 is integrated with a heating module to heat the liquid medicine therein to a specified temperature, thereby realizing the continuous addition of original liquid medicine into the waste heat tank 1 without affecting the concentration of the liquid medicine, gradient heating of the liquid medicine, and efficient concentration of quantitative high-temperature liquid medicine. The following is a detailed description of the working principle of each stage.

[0051] To ensure that the continued addition of raw liquid medicine to waste heat tank 1 does not affect its concentration, the process of concentrating the raw liquid medicine is divided into three steps: preheating, heating, and concentration. The raw liquid medicine continuously added to waste heat tank 1 is not discharged directly into heating tank 2. Instead, the remaining capacity in heating tank 2 determines the amount of raw liquid medicine discharged. Concentration tank 3 needs to be completely concentrated before the concentrated liquid medicine is completely discharged. Then, heating tank 2 discharges a fixed amount of liquid medicine into concentration tank 3. At this point, the remaining capacity in heating tank 2 increases, allowing waste heat tank 1 to discharge a fixed amount of preheated raw liquid medicine into heating tank 2.

[0052] The gradient heating method for the liquid medicine is to recover the waste heat of the warm and humid air continuously discharged from the heating tank 2, and transfer the waste heat to the waste heat tank 1 to preheat the continuously input original liquid medicine. The preheated original liquid medicine is input into the heating tank 2 and heated to an appropriate temperature without changing the medicinal properties. This is the gradient heating of secondary heating, which includes the following contents:

[0053] Among them, the heating tank 2 is provided with an air inlet and an air outlet, the air inlet of the heating tank 2 is installed with a first pipeline fan 21, the interior of the heating tank 2 is provided with an air guide pipe 22 connected to the output end of the first pipeline fan 21, and the air outlet of the heating tank 2 is installed with a waste heat collection box 23. The output end of the heating tank 2 is connected to the input end of the concentration tank 3 through a second liquid pump 25. The waste heat collection box 23 uses the waste heat generated by the high-temperature gas to preheat the original liquid medicine in the waste heat tank 1.

[0054] Among them, the waste heat tank 1 includes an inner tank body 11 and an outer tank body 12. The inner tank body 11 is used to store the continuously input original medicinal liquid. The output end of the inner tank body 11 is provided with a first liquid pump 14 and is connected to the input end of the heating tank 2 through a pipeline. There is a gap between the outer side of the inner tank body 11 and the inner side of the outer tank body 12. A spirally distributed spiral heat exchange tube 13 is provided between the inner tank body 11 and the outer tank body 12. The input and output ports of the spiral heat exchange tube 13 both extend to the outside of the outer tank body 12.

[0055] Specifically, the original liquid medicine is continuously input into the inner tank body 11 of the waste heat tank 1 through a pipeline, and the spiral heat exchange tube 13 in the gap between the outer tank body 12 and the inner tank body 11 constitutes a waste heat transfer channel. Liquid can also be filled in the gap between the outer tank body 12 and the inner tank body 11 to achieve sufficient heating of the inner tank body 11.

[0056] Among them, the waste heat collection box 23 includes an air guide frame 231 docked at the air outlet of the heating tank 2, the outlet end of the air guide frame 231 is inclined downward, and a first heat conducting pipe 232 is fixedly connected to the inside of the air guide frame 231, and a plurality of first heat conducting fins 233 arranged at equal intervals are connected to the first heat conducting pipe 232. Both ends of the first heat conducting pipe 232 pass through the air guide frame 231, and a fourth liquid pump 234 is installed at one end of the air guide frame 231. The output end of the fourth liquid pump 234 is connected to the input end of the spiral heat exchange tube 13 through a pipeline, and the other end of the air guide frame 231 is connected to the output end of the spiral heat exchange tube 13 through a pipeline. The orientation of the plurality of first heat conducting fins 233 is consistent with that of the air guide frame 231;

[0057] The waste heat collection box 23 exchanges heat with the high-temperature gas discharged from the heating tank 2 and heats the original liquid medicine stored in the inner tank body 11 through the spiral heat exchange tube 13 .

[0058] Specifically, the first duct fan 21 continuously pumps air into the heating tank 2, causing the hot, humid gas inside the heating tank 2 to be discharged through the waste heat collection box 23. As the hot, humid gas passes through the air guide frame 231, it exchanges heat with the circulating medium in the spiral heat exchange tube 13 through the first heat-conducting fins 233. The fourth liquid pump 234 drives the medium to circulate between the spiral heat exchange tube 13 and the air guide frame 231, converting the waste heat of the hot gas into a heat source for preheating the medicinal liquid in the inner tank 11. This reduces the initial energy consumption required to heat the original medicinal liquid and provides a stable heat source for the subsequent heating stage.

[0059] The air duct 22 is located in a vertical position in the heating tank 2. The air duct 22 is provided with two vertical slots 221 along its length. The two vertical slots 221 are connected to the interior of the air duct 22. The width of the vertical slots 221 increases from top to bottom.

[0060] A vertical chute 221 is located on the air duct 22 near the inner wall of the heating tank 2 .

[0061] The interior of the heating tank 2 is also provided with an air barrier assembly 24, which includes a vertically distributed slide rod 241. The upper and lower ends of the slide rod 241 are fixedly connected to the inner wall of the heating tank 2 by a connecting block 242. A floating block 243 is slidably sleeved on the slide rod 241. The floating block 243 is fixedly connected to a connecting rod 244 extending obliquely upward. One end of the connecting rod 244 passes through a vertical slide groove 221 and extends into the interior of the air guide tube 22 and is connected to an air barrier slider 245. The floating block 243 slides on the slide rod 241 and can be raised and lowered along the interior of the air guide tube 22 together with the air barrier slider 245.

[0062] The width of the connecting rod 244 is smaller than the minimum width of the vertical sliding groove 221 .

[0063] Specifically, in order to ensure that the high-temperature and high-humidity hot air in the heating tank 2 can be fully discharged, it is necessary to ensure that the air pumped in by the first duct fan 21 can be fully integrated with the high-temperature and high-humidity hot air before being discharged from the heating tank. Therefore, an air duct 22 is connected to the output end of the first duct fan 21, and two vertically distributed vertical slide grooves 221 are opened on the air duct 22, so that the air pumped in by the first duct fan 21 can be discharged horizontally at all height intervals in the heating tank 2, thereby achieving full contact and integration with the high-temperature and high-humidity hot air in the tank.

[0064] Furthermore, to prevent pumped air from blowing directly into the liquid when the tank's liquid level is too high, which would not only cause the liquid to splash and potentially spill through the air outlet, but also risk excessive oxidation, an air barrier slider 245 is installed within the air duct 22, rising and falling with the liquid level. This prevents concentrated strong winds from directly blowing into the liquid. When the liquid level rises, the float 243 drives the air barrier slider 245 upward along the vertical slide 221, reducing the effective cross-sectional area of the air duct 22 and preventing excessive air from entering the liquid. When the liquid level drops, the reverse action expands the airflow channel, ensuring a constant contact area between the steam and the liquid. This design helps accelerate the discharge of hot and humid gases from the tank.

[0065] The principle of efficient concentration of quantitative high-temperature liquid medicine is to use closed condensation concentration and circulating drying in the concentration tank 3, which specifically includes the following:

[0066] Among them, the concentration tank 3 is provided with an air inlet and an air outlet, and the condensation component 4, the second pipeline fan 5 and the heat drying component 6 are connected in sequence. The concentration tank 3, the condensation component 4, the second pipeline fan 5 and the heat drying component 6 together constitute a closed space that does not interact with the external gas. The condensation component 4 is connected to the first compressor 7 to supply energy to the cold source, and the heat drying component 6 is connected to the second compressor 8 to supply energy to the heat source.

[0067] The condensation assembly 4 includes a condensation box 41 that is docked with the air outlet of the concentration tank 3. The output end of the condensation box 41 is docked with the input end of the second pipeline fan 5. A second heat conduction pipe 42 is provided inside the condensation box 41. The second heat conduction pipe 42 is provided with a plurality of equally spaced second heat conduction fins 43. Both ends of the second heat conduction pipe 42 extend out of the condensation box 41 and are connected to the input and output ends of the first compressor 7.

[0068] A vertically distributed downpipe 411 is installed at the bottom end of the condensation box 41. The bottom of the inner side of the condensation box 41 is a conical structure, and the top of the downpipe 411 extends into the interior of the condensation box 41 and is located at the bottom of the conical structure. The bottom output end of the downpipe 411 is connected to a solenoid valve 412. A liquid level sensor 413 for detecting the water level inside the downpipe 411 is provided inside the downpipe 411. The liquid level sensor 413 is electrically connected to the solenoid valve 412.

[0069] A one-way air valve 414 is installed at the top of the condensation box 41 for balancing the air pressure inside the condensation box 41 .

[0070] The heat drying assembly 6 includes a heat drying box 61 connected to the output end of the second duct fan 5. The output of the heat drying box 61 is connected to the air inlet of the heating tank 2. A third heat conducting pipe 62 is provided inside the heat drying box 61. The third heat conducting pipe 62 is provided with a plurality of third heat conducting fins 63 arranged at equal distances. Both ends of the third heat conducting pipe 62 extend out of the heat drying box 61 and are connected to the input and output ends of the second compressor 8.

[0071] Specifically, the quantitative heated liquid medicine that reaches the set temperature in the heating tank 2 enters the concentration tank 3 and is collected at the bottom of the tank body. At this time, the remaining upper space in the tank body is divided into a U-shaped space by the vertical partition 33, which is also a directional flow channel for air circulation. The dry hot air input from the air inlet needs to move along one end of the U-shaped space to the air outlet at the other end. In this process, the water content of the hot air discharged from the air outlet is increased by extending the fusion time of the dry hot air and the high-temperature and high-humidity steam. The liquid density sensor 31 monitors the concentration of the concentrated liquid in real time. After meeting the standard, the concentrated liquid product is discharged from the output port of the concentration tank 3.

[0072] A liquid density sensor 31 for detecting the concentration of the liquid medicine is provided inside the concentration tank 3 , and a third liquid pump 32 electrically connected to the liquid density sensor 31 is installed on the output end of the concentration tank 3 .

[0073] The interior of the concentrating tank 3 is provided with a vertically distributed septum 33. The top and both sides of the septum 33 are connected to the inner wall of the concentrating tank 3. The bottom of the septum 33 is always higher than the liquid level inside the concentrating tank 3. The septum 33 divides the interior of the concentrating tank 3 into a U-shaped space, with the air inlet and outlet of the concentrating tank 3 located at either end of the U-shaped space. Maintaining the bottom of the septum 33 above the liquid level inside the concentrating tank 3 can be achieved through two conventional technical means. One is to install a liquid level sensor at an appropriate height inside the concentrating tank 3 to detect the liquid level inside the tank. When the liquid level sensor detects that the current liquid level in the concentrating tank 3 has reached an appropriate height, the liquid level sensor controls the pump at the output end of the heating tank 2 to stop delivering liquid. Alternatively, the pump at the output end of the heating tank 2, which is used to drain the liquid from the heating tank 2, is directly controlled to pump a fixed amount of liquid into the heating tank 2 each time the liquid is completely drained from the concentrating tank 3. Both methods are conventional technical means and can ensure that the septum 33 is always above the liquid level inside the concentrating tank 3.

[0074] Specifically, the second duct blower 5 provides air circulation power, allowing the hot and humid steam generated during the concentration of the liquid medicine in the tank to enter the condensation box 41 of the condensation component 4. The second heat pipe 42 and the second heat conducting fin 43 cool the steam and precipitate the water. The condensed water flows into the sewer pipe 411 through the conical bottom. The liquid level sensor 413 and the solenoid valve 412 are linked to achieve automatic drainage. During the drainage process, the one-way air valve 414 ensures the air pressure balance in the condensation box 41. The dehydrated low-temperature gas is transported to the heat drying box 61 of the heat drying component 6 through the second duct blower 5. It is heated and regenerated into dry hot air through the third heat conducting pipe 62 and returned to the air inlet of the heating tank 2 to participate in the next cycle. This closed internal circulation system isolates the external temperature and humidity fluctuations. The continuous switching between the condensation component 4 and the heat drying component 6 maintains the air pressure in the tank stable, ensuring a constant concentration rate.

[0075] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

Claims

1. A continuous Chinese medicine extraction and concentration device, comprising a waste heat tank (1), a heating tank (2) and a concentration tank (3) connected in sequence along the processing steps, characterized in that: The residual heat tank (1) is used to store the continuously input original medicine liquid; The heating tank (2) is used to store the preheated liquid medicine output by the waste heat tank (1) and to heat the preheated liquid medicine to a set temperature; The concentration tank (3) is used to store the set temperature liquid medicine output by the heating tank (2) and to concentrate the set temperature liquid medicine to a specified concentration before discharging it; The heating tank (2) is provided with an air inlet and an air outlet, a first pipeline fan (21) is installed on the air inlet of the heating tank (2), an air guide pipe (22) connected to the output end of the first pipeline fan (21) is provided inside the heating tank (2), a waste heat collection box (23) is installed on the air outlet of the heating tank (2), the output end of the heating tank (2) is connected to the input end of the concentration tank (3) via a second liquid pump (25), and the waste heat collection box (23) uses the waste heat generated by the high-temperature gas to preheat the original liquid medicine in the waste heat tank (1); The concentration tank (3) is provided with an air inlet and an air outlet, and a condensation component (4), a second pipeline fan (5) and a heat drying component (6) are sequentially connected between them. The concentration tank (3), the condensation component (4), the second pipeline fan (5) and the heat drying component (6) together form a closed space that does not interact with external air. The condensation component (4) is connected to a first compressor (7) to supply a cold source of energy, and the heat drying component (6) is connected to a second compressor (8) to supply a heat source of energy.

2. A continuous Chinese medicine extraction and concentration device according to claim 1, characterized in that: The waste heat tank (1) comprises an inner tank body (11) and an outer tank body (12), wherein the inner tank body (11) is used to store the continuously input original liquid medicine, and the output end of the inner tank body (11) is provided with a first liquid pump (14) connected to the input end of the heating tank (2) through a pipeline, and a gap is provided between the outer side of the inner tank body (11) and the inner side of the outer tank body (12), and a spiral heat exchange tube (13) is provided between the inner tank body (11) and the outer tank body (12), and the input port and the output port of the spiral heat exchange tube (13) both extend to the outside of the outer tank body (12).

3. A continuous Chinese medicine extraction and concentration device according to claim 1, characterized in that: The waste heat collection box (23) includes an air guide frame (231) docked with the air outlet of the heating tank (2), the outlet end of the air guide frame (231) is tilted downward, a first heat conduction pipe (232) is fixedly connected to the interior of the air guide frame (231), a plurality of first heat conduction fins (233) arranged at equal intervals are connected to the first heat conduction pipe (232), both ends of the first heat conduction pipe (232) pass through the air guide frame (231), a fourth liquid pump (234) is installed at one end of the air guide frame (231), the output end of the fourth liquid pump (234) is connected to the input end of the spiral heat exchange pipe (13) through a pipeline, the other end of the air guide frame (231) is connected to the output end of the spiral heat exchange pipe (13) through a pipeline, and the orientation of the plurality of first heat conduction fins (233) is consistent with the orientation of the air guide frame (231); The waste heat collection box (23) exchanges heat with the high-temperature gas discharged from the heating tank (2), and heats the original liquid medicine stored in the inner tank body (11) through the spiral heat exchange tube (13).

4. A continuous Chinese medicine extraction and concentration device according to claim 1, characterized in that: The portion of the air guide pipe (22) located inside the heating tank (2) is vertically distributed, and the air guide pipe (22) is provided with two vertical slide grooves (221) distributed along its length direction, the two vertical slide grooves (221) are connected to the interior of the air guide pipe (22), and the width of the vertical slide grooves (221) increases from top to bottom. Wherein, one of the vertical slide grooves (221) is located on the air guide pipe (22) at a position close to the inner wall of the heating tank (2).

5. A continuous Chinese medicine extraction and concentration device according to claim 4, characterized in that: The interior of the heating tank (2) is also provided with an air barrier component (24), and the air barrier component (24) includes a vertically distributed slide rod (241), and the upper and lower ends of the slide rod (241) are fixedly connected to the inner wall of the heating tank (2) by a connecting block (242), and a floating block (243) is slidably sleeved on the slide rod (241), and a connecting rod (244) extending obliquely upward is fixedly connected to the floating block (243), and one end of the connecting rod (244) passes through a vertical slide groove (221) and extends to the interior of the air guide pipe (22) and is connected to an air barrier slider (245), and the floating block (243) slides on the slide rod (241) and can rise and fall along the interior of the air guide pipe (22) together with the air barrier slider (245); Wherein, the width of the connecting rod (244) is smaller than the minimum width of the vertical sliding groove (221).

6. A continuous Chinese medicine extraction and concentration device according to claim 1, characterized in that: The condensation assembly (4) comprises a condensation box (41) docked with the air outlet of the concentration tank (3); the output end of the condensation box (41) docked with the input end of the second duct fan (5); a second heat conduction pipe (42) is provided inside the condensation box (41); a plurality of second heat conduction fins (43) arranged at equal intervals are provided on the second heat conduction pipe (42); both ends of the second heat conduction pipe (42) extend out of the condensation box (41) and are connected to the input end and the output end of the first compressor (7); The heat drying assembly (6) comprises a heat drying box (61) connected to the output end of the second duct fan (5); the output of the heat drying box (61) is connected to the air inlet of the heating tank (2); a third heat conducting pipe (62) is provided inside the heat drying box (61); a plurality of third heat conducting fins (63) arranged at equal intervals are provided on the third heat conducting pipe (62); both ends of the third heat conducting pipe (62) extend out of the heat drying box (61) and are connected to the input end and the output end of the second compressor (8).

7. A continuous Chinese medicine extraction and concentration device according to claim 6, characterized in that: A vertically distributed downpipe (411) is installed at the bottom end of the condensation box (41); the bottom of the inner side of the condensation box (41) is a conical structure, and the top end of the downpipe (411) extends to the interior of the condensation box (41) and is located at the bottom of the conical structure; the bottom output end of the downpipe (411) is connected to a solenoid valve (412); a liquid level sensor (413) for detecting the water level inside the downpipe (411) is provided inside the downpipe (411); the liquid level sensor (413) is electrically connected to the solenoid valve (412); A one-way air valve (414) for balancing the internal air pressure of the condensation box (41) is installed at the top end of the condensation box (41).

8. The continuous Chinese medicine extraction and concentration device according to claim 1, characterized in that: A liquid density sensor (31) for detecting the concentration of the liquid medicine is provided inside the concentration tank (3), and a third liquid pump (32) electrically connected to the liquid density sensor (31) is installed on the output end of the concentration tank (3).

9. The continuous Chinese medicine extraction and concentration device according to claim 1, characterized in that: The interior of the concentration tank (3) is provided with a vertically distributed spacer (33), the top and both sides of the spacer (33) are connected to the inner wall of the concentration tank (3), the bottom of the spacer (33) is always higher than the liquid level inside the concentration tank (3), and the spacer (33) can divide the interior of the concentration tank (3) into a U-shaped space, and the air inlet and the air outlet of the concentration tank (3) are respectively located at the two ends of the U-shaped space.

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