Traditional Chinese medicine efficient non-blind area anti-blocking extraction device

Abstract

The application discloses a traditional Chinese medicine efficient non-blind area anti-blocking extraction device, which comprises an extraction tank body and an extraction tank lower cover, the bottom of the extraction tank body is rotatably provided with the extraction tank lower cover, the top of the extraction tank lower cover is provided with a flat filter screen, the bottom is provided with a medicine outlet, and an inverted conical filter is suspended in the extraction tank body; the inverted conical filter is an inverted conical structure with an open lower end and an inner cavity, the sidewall of the inverted conical filter is provided with filter holes, and the bottom of the inverted conical filter is in sealing contact with the top of the extraction tank lower cover when the extraction tank lower cover is in a closed state; the medicine liquid enters the inverted conical filter through the filter holes, enters the lower cover through the flat filter screen, and is discharged through the medicine outlet. The application has the advantages of simple structure, avoidance of the inverted conical blind area in traditional Chinese medicine extraction by suspending the inverted conical filter in the extraction tank body and the structural design of the inverted conical filter, solution to the problems of difficult liquid discharge, easy blockage and difficult cleaning of the extraction tank, and improvement of the extraction rate of effective components of traditional Chinese medicinal materials.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine manufacturing, specifically to a highly efficient, blind-zone-free, and anti-blocking extraction device for traditional Chinese medicine. Background Technology

[0002] Traditional Chinese medicine herbs such as roots and rhizomes are generally fed in coarse powder form. After being heated at high temperature in an extraction tank, the effective components in the herbs are extracted. However, after high-temperature extraction in the extraction tank, the herbs (especially those with high sugar content) are easily overcooked and may even turn into a paste. In severe cases, the liquid can be released slowly or even blocked when draining from the bottom of the extraction tank.

[0003] Existing technologies offer the following solutions to the problems of slow liquid discharge and blockage: 1. Wrapping the medicinal herbs in gauze before feeding results in a huge consumption of gauze, increasing production costs; 2. Using side-wall filtration results in some residue adhering to the filter screen, making it very difficult to clean.

[0004] In addition, there is still room for improvement in the extraction rate of effective components of medicinal materials in existing extraction tanks. To address the extraction rate issue, existing technologies employ a forced circulation method, drawing liquid from the bottom of the extraction tank and then pumping it in from the top, causing the extract to tumble inside the tank. However, this operation can easily clog the filter screen at the bottom of the extraction tank. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies, adapt to practical needs, and provide a highly efficient, blind-zone-free, and anti-blocking extraction device for traditional Chinese medicine.

[0006] To achieve the purpose of the invention, the technical solution adopted is as follows:

[0007] A highly efficient, blind-spot-free, anti-clogging extraction device for traditional Chinese medicine includes an extraction tank body and an extraction tank bottom cover. The bottom of the extraction tank body is rotatably openable and equipped with an extraction tank bottom cover. The top of the extraction tank bottom cover is equipped with a flat filter screen, and the bottom is equipped with a medicine outlet. An inverted cone-shaped filter is suspended inside the extraction tank body. The inverted cone-shaped filter has an open bottom and a hollow interior structure. The side wall of the inverted cone-shaped filter is equipped with filter holes. When the extraction tank bottom cover is closed, the bottom of the inverted cone-shaped filter is in sealed contact with the top of the extraction tank bottom cover. The medicine enters the inverted cone-shaped filter through the filter holes, passes through the flat filter screen, enters the bottom cover, and is discharged from the medicine outlet.

[0008] Furthermore, the inverted cone filter is fixed to the inner wall of the extraction tank body by welding multiple steel pipes.

[0009] Furthermore, the bottom of the inverted cone-shaped filter is provided with a ring of high-temperature resistant silicone rubber.

[0010] Furthermore, the inverted cone-shaped filter is made of a filter screen, and the two sides of the filter screen are fixed by pressure strips.

[0011] Furthermore, the thickness of the inverted cone filter is 5-8 mm, and the pore size is 60-80 mesh.

[0012] Furthermore, the ratio of the bottom diameter of the inverted cone filter to the bottom diameter of the tank is 1:3 to 2:3.

[0013] This invention has a simple structure and is easy to process. By suspending an inverted cone filter inside the extraction tank, the structural design of the inverted cone filter can maximize the filtration area while ensuring the normal operation of the bottom of the original extraction tank. It also avoids the blind spot of the inverted cone in the extraction of Chinese medicinal materials, solves the problems of difficult liquid discharge, easy blockage, and difficult cleaning of the extraction tank, and improves the extraction rate of effective components of Chinese medicinal materials. Attached Figure Description

[0014] Figure 1 This is a diagram illustrating blind spots in the extraction of traditional Chinese medicine.

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the inverted cone filter of the present invention;

[0017] Figure 4 This is a diagram showing the time taken for liquid to drain after extraction in an extraction tank that uses an inverted conical filter with a different diameter ratio from the bottom of the extraction tank.

[0018] Figure 5 This is a schematic diagram showing the extraction rate of rehmannia glutinosa after extraction using an inverted conical filter with a different diameter ratio from the bottom of the extraction tank.

[0019] Figure 6 This is a diagram showing the time taken for residue to be discharged after extraction in an extraction tank that uses an inverted cone filter with a different diameter ratio from the bottom of the extraction tank.

[0020] In the diagram: 1. Extraction tank body; 2. Extraction tank lower cover; 3. Inverted conical filter; 4. Filter hole; 5. Steel pipe; 6. Pressure strip; 100. Jacket; 200. Effective extraction heating area; 300. Dead zone for extraction heating. Detailed Implementation

[0021] The present invention can be further described through the following embodiments; however, the scope of the invention is not limited to the following embodiments. It should be understood that the embodiments described herein are disclosed by way of illustration only, and the invention is not intended to limit its scope to the details of the construction and arrangement of the components described below or illustrated in the figures. Furthermore, in describing preferred embodiments, specific terminology will be used for clarity. It should be understood that each specific term includes all technical equivalents that operate in a similar manner to achieve a similar purpose.

[0022] This invention addresses the issue that existing herbal medicine extraction tanks heated by sidewall jackets have low extraction efficiency. The reason for this is that during actual extraction and processing, a heating blind zone 300 exists at the bottom of the extraction tank. Figure 1 As shown, the outer side of the extraction tank body 1 is provided with a jacket 100. The jacket 100 contains a heat-conducting medium and a heating device for heating the heat-conducting medium. The side and bottom of the extraction heating blind zone form an angle α, which is about 37°. The extraction of effective components of Chinese medicinal materials in this part of the extraction heating blind zone is extremely low. To improve the extraction rate, how to optimize the structure of the extraction tank and avoid the extraction heating blind zone 300 is the key technology of this invention.

[0023] This invention relates to a highly efficient, blind-zone-free, and anti-blocking extraction device for traditional Chinese medicine, such as... Figure 1 and Figure 2 As shown, the extraction tank includes an extraction tank body 1 and an extraction tank lower cover 2. The bottom of the extraction tank body 1 is rotatably openable and equipped with the extraction tank lower cover 2. The top of the extraction tank lower cover 2 is equipped with a flat filter screen, and the bottom is equipped with a medicine outlet. An inverted conical filter 3 is suspended inside the extraction tank body 1. The inverted conical filter 3 is an inverted conical structure with an open bottom and a hollow interior. The side wall of the inverted conical filter 3 is equipped with filter holes 4. When the extraction tank lower cover 2 is in the closed state, the bottom of the inverted conical filter 3 is in sealed contact with the top of the extraction tank lower cover 2. The medicinal liquid enters the inverted conical filter 3 through the filter holes 4, passes through the flat filter screen, enters the lower cover, and is discharged from the medicine outlet. By setting the inverted conical filter 3, the medicinal materials can be prevented from falling into the extraction heating blind zone 300, so that all the Chinese medicinal materials in the extraction tank are in the effective extraction heating area, and the Chinese medicinal materials can be fully and effectively extracted, which greatly improves the extraction efficiency of the effective components of Chinese medicinal materials.

[0024] In this embodiment, the inverted cone filter 3 is welded to the inner wall of the extraction tank body 1 by three steel pipes 5.

[0025] In this embodiment, the bottom of the inverted cone filter 3 is provided with a ring of high-temperature resistant silicone rubber. The high-temperature resistant silicone rubber can make the lower part of the inverted cone filter in close contact with the upper part of the lower cover of the extraction tank, preventing Chinese medicinal materials from entering the extraction heating blind zone 300 through the gap.

[0026] In this embodiment, see Figure 3 As shown, the inverted cone filter 3 is made of a filter screen, and the two sides of the filter screen are fixed by pressure strips 6. Furthermore, the thickness of the inverted cone filter 3 is 5-8 mm, and the pore size of the filter hole 4 is 60-80 mesh.

[0027] In this embodiment, the ratio of the bottom diameter of the inverted cone filter 3 to the bottom diameter of the tank is 1:3 to 2:3.

[0028] During extraction, the inverted conical filter is installed as described above, and the lower cover of the extraction tank is closed. The original flat filter screen on the lower cover is tightly fitted to the lower part of the inverted conical filter to prevent dregs from entering the filter through gaps. The pulverized Chinese medicinal herbs are then added to the extraction tank, falling onto the upper part and periphery of the inverted conical filter. 6-12 times the amount of water or other solvent is added, and the herbs are allowed to soak for 30-60 minutes. High-temperature steam is then introduced into the side wall jacket of the extraction tank for heating, causing the herbs to boil and tumble within the tank. Because of the inverted conical filter at the bottom of the extraction tank, the herbs are prevented from entering the blind area of ​​the inverted conical extraction tank, ensuring all the herbs inside are properly contained. In the effective extraction heating zone, Chinese medicinal materials can be fully and effectively extracted, greatly improving the extraction efficiency of effective components. When the extraction of Chinese medicinal materials is completed, the medicinal liquid enters the interior of the inverted conical filter through the filter screen on the side wall of the 60-80 mesh filter, while the residue is blocked outside the side wall and top of the inverted conical filter. The medicinal liquid then enters the flat filter screen of the bottom cover of the extraction tank through the bottom of the inverted conical filter and flows into the bottom cover, and is then discharged from the extraction tank and placed in a storage tank for later use. At the same time, the part of the flat filter screen not covered by the inverted conical filter can also filter a portion of the medicinal liquid. The Chinese medicinal materials are extracted a second time and the liquid is discharged in the above manner.

[0029] During the liquid discharge process, the medicinal liquid flows through the filter screen into the inverted cone filter. Impurities in the medicinal liquid will sink to the bottom of the extraction tank as it is flushed out, without clogging the side wall filter screen of the inverted cone filter. The medicinal liquid can be filtered smoothly without any dead corners. After the medicinal liquid is discharged, the extracted Chinese medicinal materials can be discharged smoothly by opening the bottom cover of the extraction tank. Because the bottom of the inverted cone filter is open, there is almost no residue clogging the inverted cone filter. The inverted cone filter can be easily cleaned by rinsing directly, with no dead corners. The structural design of the inverted cone filter can maximize the filtration area while ensuring the normal operation of the bottom of the original extraction tank, and avoid the blind spots of the inverted cone in the extraction of Chinese medicinal materials.

[0030] Comparative Example 1: Using a 3-ton extraction tank, 200 kg of prepared Rehmannia glutinosa was extracted. Eight times the amount of water was added, and the mixture was simmered for 1 hour. The extraction was repeated twice. Without the addition of an inverted conical filter and a side wall filter, almost no liquid was released at the end of the extraction. The liquid was drawn from the top of the extraction tank, and the two extraction liquids were combined. The average extraction rate of rehmannia glutinosa was found to be 55.3%.

[0031] Comparative Example 2: A 3-ton extraction tank with a side-wall filter (1m high, 80-mesh filter screen) was used. When the extraction of Rehmannia glutinosa was completed, the average time for liquid discharge was 2 hours. The two extraction solutions were combined, and the average extraction rate of rehmannia glutinosa was 56.1%. After the extraction was completed, the side wall was difficult to clean and there were unsanitary corners.

[0032] Experimental Example 1: Using a 3-ton extraction tank with the inverted conical filter of this invention (bottom diameter 0.5m, height 1m, filter mesh size 80 mesh), at the end of the extraction of Rehmannia glutinosa, the average discharge time was 1 hour. The extracts from the two extractions were combined, and the average extraction rate of rehmannia glutinosa was 68.6%. The inverted conical filter significantly improved the filtration speed and the extraction rate of effective components by more than 10%, demonstrating its significant effect on the extraction and discharge of traditional Chinese medicinal materials.

[0033] The present invention conducted the following experimental research on the inverted conical filter 3 with a diameter ratio different from that of the bottom of the extraction tank.

[0034] 1. This embodiment provides an extraction tank using an inverted conical filter with a diameter ratio different from that at the bottom of the extraction tank. The method for draining the liquid after extraction is as follows: Figure 4 As shown.

[0035] 2. This embodiment provides the extraction rate of rehmannia glutinosa detected after extraction using an inverted conical filter with a diameter ratio different from that at the bottom of the extraction tank. Figure 5 As shown.

[0036] 3. This embodiment provides an extraction tank using an inverted conical filter with a diameter ratio different from that at the bottom of the extraction tank. The method for discharging residue after extraction is as follows: Figure 6 As shown.

[0037] pass Figure 4 It can be seen that before the diameter ratio is 2:3, the average liquid discharge time increases with the increase of the diameter ratio, and the liquid discharge time becomes faster. However, when the diameter ratio reaches 2:3, the change in liquid discharge time is not obvious. When the diameter ratio is 3:4, the liquid discharge time actually increases.

[0038] pass Figure 5 It can be seen that the extraction rate of rehmannia glutinosa increases with the ratio of the bottom diameter of the filter to the bottom diameter of the tank. When the ratio is 1:5 and 1:4, the extraction rate is comparable to that of using a sidewall filter.

[0039] pass Figure 6 It can be seen that the longer the slag discharge time is, the greater the ratio of the bottom diameter of the filter to the bottom diameter of the tank, but when the ratio is greater than 2:3, the slag discharge time increases significantly, and the problem of slag discharge difficulties occurs.

[0040] In summary, when the ratio of the bottom diameter of the filter to the bottom diameter of the tank is controlled at 1:3 to 2:3, the liquid discharge time, extraction rate, and slag discharge time are all at an optimal level, which improves the extraction rate of Chinese herbal medicines, shortens the liquid discharge time, and achieves a good slag discharge effect.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency, blind-spot-free, anti-clogging extraction device for traditional Chinese medicine, comprising an extraction tank body (1) and an extraction tank lower cover (2), wherein the bottom of the extraction tank body (1) is rotatably openable and equipped with the extraction tank lower cover (2), the top of the extraction tank lower cover (2) is equipped with a flat filter screen, and the bottom is equipped with a medicine outlet, characterized in that, An inverted conical filter (3) is suspended inside the extraction tank body (1). The inverted conical filter (3) is an inverted conical structure with an open bottom and a hollow interior. The side wall of the inverted conical filter (3) is provided with filter holes (4). The diameter of the filter holes (4) is 60 to 80 mesh. When the bottom cover (2) of the extraction tank is closed, the bottom of the inverted conical filter (3) is in sealed contact with the top of the bottom cover (2) of the extraction tank. The medicine enters the inverted conical filter (3) through the filter holes (4), passes through the flat filter screen, enters the bottom cover, and is discharged from the medicine outlet. The inverted conical filter (3) is welded and fixed to the inner wall of the extraction tank body (1) by multiple steel pipes (5). The angle between the side and the bottom of the extraction heating blind zone of the extraction tank body (1) is 37°. The ratio of the bottom diameter of the inverted conical filter (3) to the bottom diameter of the tank body is 1:3 to 2:

3.

2. The high-efficiency, blind-zone-free, anti-clogging extraction device for traditional Chinese medicine according to claim 1, characterized in that, The bottom of the inverted cone filter (3) is provided with a ring of high-temperature resistant silicone rubber.

3. The high-efficiency, blind-zone-free, anti-blocking extraction device for traditional Chinese medicine according to claim 1, characterized in that, The inverted cone filter (3) is made of a filter screen, and the two sides of the filter screen are fixed by pressure strips (6).

4. The high-efficiency, blind-zone-free, anti-clogging extraction device for traditional Chinese medicine according to claim 3, characterized in that, The thickness of the inverted cone filter (3) is 5-8 mm.

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