Processing equipment for producing nine-processed radix rehmanniae preparata
By designing a multifunctional processing equipment for the nine-process Rehmannia glutinosa, combining steaming, boiling, moistening, and drying with CNC technology, the problems of low efficiency and unstable quality in the traditional nine-process Rehmannia glutinosa processing have been solved, achieving efficient and safe modern production.
Patent Information
- Application Number
- CN202610224200.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-25
- Publication Date
- 2026-04-10
AI Technical Summary
The existing nine-step processing method for Rehmannia glutinosa is time-consuming, inefficient, and has unstable quality, and poses safety hazards. Traditional methods cannot guarantee the uniformity of the product and the retention of its components.
Design a processing tank comprising an inner and outer cylinder arranged coaxially, equipped with a spray bar, a liquid storage tank, a steam generator, a concentration system, and a vacuum system to achieve integrated operation of steaming, boiling, moistening, and drying, and to achieve intelligent management by combining CNC technology.
It significantly improves processing efficiency, reduces labor costs, ensures product quality uniformity and component retention, shortens processing time, reduces errors and component loss, and realizes the modernization and industrialization of traditional Chinese medicine processing.
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Figure CN121818376A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of traditional Chinese medicine processing equipment, specifically relating to a processing device for producing Rehmannia glutinosa (rehmannia root) processed nine times. Background Technology
[0002] Nine-times-processed Rehmannia glutinosa, first recorded in Sun Simiao's *Qianjin Yifang* (Supplement to the Thousand Golden Prescriptions), has been passed down for over a thousand years. It is a traditional Chinese medicine preparation method involving nine rounds of steaming, nine rounds of drying, and nine rounds of sun-drying, hence its name. In some traditional applications, nine-times-processed Rehmannia glutinosa is considered slightly warm in nature and sweet in taste, possessing the effects of nourishing yin and tonifying the kidneys, replenishing essence and marrow, making it a top choice for tonifying the kidneys and nourishing blood. It can be used to treat symptoms such as liver and kidney yin deficiency, insufficient essence and blood, dizziness, palpitations, and insomnia. It can also be used to moisten the lungs and astringe phlegm, suitable for symptoms such as chronic cough and wheezing. Modern medical research shows that nine-times-processed Rehmannia glutinosa enhances the body's immune function, promotes hematopoiesis, and also has anti-fatigue, antioxidant, anti-inflammatory, and anti-tumor effects.
[0003] Nine-times-processed Rehmannia glutinosa has significant efficacy, but currently, the processing of Nine-times-processed Rehmannia glutinosa in various regions still relies primarily on manual operation of repeated steaming and drying equipment or natural sun-drying. Completing one nine-times-processing cycle takes at least a month. The production process is lengthy, susceptible to many external influencing factors, and prone to large quality deviations, resulting in very high costs. Personnel repeatedly unload, turn over, and load materials at each stage, which is time-consuming and labor-intensive, increases product loss, leads to poor uniformity, and poses certain safety hazards. Sometimes, in an effort to save costs, the number of processing cycles is shortened, but this practice severely impacts product quality. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a processing equipment for producing Rehmannia glutinosa that can improve processing efficiency while ensuring the quality of Rehmannia glutinosa.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a processing device for producing nine-processed Rehmannia glutinosa, comprising a processing tank and a storage tank; the processing tank includes an inner cylinder and an outer cylinder arranged coaxially, with a sandwich formed between the inner cylinder and the outer cylinder; the inner cylinder is rotatably arranged around an axis; a spray bar is provided at the central axis of the inner cylinder, and nozzles are evenly distributed on the spray bar; the spray bar is connected to the storage tank.
[0006] The beneficial effects of this invention are as follows: The processing equipment for producing Rehmannia glutinosa (nine-processed) provided by this invention, by setting up a processing tank with a jacket, inner cylinder, and outer cylinder, and equipped with a storage tank that can be heated, concentrated, and has its liquid volume controlled, can realize steaming, boiling, moistening, soaking, and drying within the same processing tank. This eliminates the need for handling and turning the machine during the entire processing process, significantly improving production efficiency and reducing costs in various aspects such as labor. It also effectively avoids errors and loss of effective components caused by repeated manual operation. The processing equipment for producing Rehmannia glutinosa (nine-processed) provided by this invention can be combined with modern CNC technology. Through reasonable CNC programming, intelligent management can be achieved, realizing the construction of a modern industrial system for the processing of traditional Chinese medicine. Attached Figure Description
[0007] Figure 1 This is a partial structural schematic diagram of the processing equipment according to a specific embodiment of the present invention; Figure 2 for Figure 1 The front view; Figure 3 for Figure 2 A cross-sectional view along the BB direction; Figure 4 This is a partial structural schematic diagram of the processing equipment according to a specific embodiment of the present invention from another angle; Figure 5 for Figure 1 A magnified view of point A; Figure 6 for Figure 4 A magnified view of point B; Label Explanation: 1. Processing vessel; 11. Inner cylinder; 12. Outer cylinder; 13. Spray bar; 14. Nozzle; 15. Baffle bar; 16. Liquid outlet pipe; 2. Liquid storage tank; 3. Juice receiver; 31. Shield; 32. Splash guard; 4. Frame; 5. Cover door; 6. Lifting system. Detailed Implementation
[0008] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0009] A processing device for producing prepared Rehmannia glutinosa (rehmannia root) includes a processing tank and a storage tank. The processing tank includes an inner cylinder and an outer cylinder arranged coaxially, with a sandwich layer between the inner and outer cylinders. The inner cylinder is rotatably arranged around its central axis. A spray bar is provided at the central axis of the inner cylinder, and nozzles are evenly distributed on the spray bar. The spray bar is connected to the storage tank.
[0010] As can be seen from the above description, the beneficial effects of the present invention are as follows: The inner cylinder of the processing tank of the processing equipment for producing Rehmannia glutinosa (a traditional Chinese medicine) provided by the present invention is used to place the material to be processed. The inner cylinder is rotatable and has spray bars with evenly distributed nozzles, thereby enabling full turning of the material and the supply of steam / auxiliary liquid. Steam can be introduced into the jacket to achieve heat preservation and heating of the inner cylinder. The liquid storage tank is used to recover the medicinal liquid from each processing and to provide the auxiliary liquid required for the next processing. This allows steaming, boiling, moistening, soaking, and drying to be carried out in this processing equipment, eliminating the need for multiple transfers between steaming and drying equipment as in traditional processes. This effectively avoids errors, contamination, and losses caused by multiple manual operations, and significantly improves the efficiency of processing and the quality of the product.
[0011] The form and method of spraying liquid from the processing tank to the spray bar and then to the inner cylinder are not limited. It can be done by pressurizing the processing tank or by using a water pump to draw liquid from the processing tank and deliver it to the spray bar.
[0012] In one or more embodiments, a steam generator (not shown) is also included, which is connected to the spray bar and the jacket via pipelines for supplying steam to the inner cylinder and the jacket. The connection between the spray bar, the jacket, and the steam generator can be achieved through a three-way valve or similar means.
[0013] In one or more embodiments, a water-vapor separator (not shown in the figure) is also included, which is connected to the steam generator. The water-vapor separator is located at the outlet of the steam generator or the inlet of the processing vessel. It effectively removes liquid droplets entrained in the steam, improves steam quality, and avoids excessive moisture content in the steam directly contacting the medicinal materials, which can lead to excessive juice, high moisture content in the medicinal materials after steaming, and prolonged drying time. This significantly shortens the process time, improves production efficiency, and also prevents water hammer vibration in pipelines, reduces corrosion and cavitation of valves, pipes, and equipment, and improves thermal efficiency.
[0014] In one or more embodiments, a heater is provided inside the storage tank. This heater is used to heat and maintain the temperature of the auxiliary liquid inside the storage tank, preventing condensation. The form and location of the heater are not limited; for example, it can be an electric heating coil, which can be installed at the bottom of the storage tank, or alternatively, around the sides and bottom of the storage tank, as long as it can heat the liquid inside the storage tank.
[0015] In one or more embodiments, a concentration system (not shown in the figure) is also included, which is connected to the processing tank via pipeline. The concentration system is linked to the processing tank and can be equipped with a concentration system featuring heating and heat preservation functions. A metering device is also installed to control and statistically measure the amount of liquid added. When a large amount of medicinal liquid is recovered in a previous batch, the concentration system can be used to concentrate the recovered liquid in the storage tank before adding it to the next processing batch. This reduces the water content during the next moistening process, allowing for effective absorption and reducing drying time.
[0016] When used in conjunction with a concentration system, the liquid storage tank can heat the auxiliary liquid and allow for controllable and statistical analysis of the added liquid volume, which helps to achieve precise production.
[0017] In one or more embodiments, the system further includes a juice receiver; the juice receiver includes a shroud; the shroud is a hollow hemisphere, and a through hole is provided at the bottom of the shroud (i.e., the lowest point opposite the opening end of the hemisphere), the through hole being connected to the inlet of the storage tank.
[0018] In one or more embodiments, the liquid receiver further includes a splash guard; the splash guard extends upward along a portion of the edge of the fairing, and the height of the splash guard gradually decreases from the middle to both sides; the fairing and the splash guard mainly serve to guide the liquid, and can completely collect the liquid discharged from the processing pot, preventing the loss of the liquid.
[0019] In one or more embodiments, a vacuum system (not shown in the figure) is also included, which is connected to the inner cylinder via a pipeline. Existing integrated steaming and cooking machines dry the herbs by indirect steam heat exchange and transferring hot air to the surface of the herbs via a fan. This method is time-consuming; drying Rehmannia glutinosa to ≤18% moisture content after steaming takes approximately 48 hours, resulting in significant time and energy losses. This invention, by incorporating a vacuum system (any commercially available vacuum-capable device will suffice), combines jacketed steam heating with vacuum drying. Drying Rehmannia glutinosa to ≤18% moisture content after steaming takes approximately 8 hours, significantly reducing labor and energy consumption. Furthermore, the vacuum system allows for negative pressure extraction into the inner cylinder while the insulation layer is heated. Pressure is released through a pressure relief port when the pressure reaches a certain level, thus achieving the desired drying effect on the contents of the inner cylinder.
[0020] In one or more embodiments, at least three baffles are provided on the inner wall of the inner cylinder, extending axially and evenly distributed circumferentially. Preferably, the baffles are evenly distributed on the inner wall of the inner cylinder. During the slow rotation of the medicinal materials, the baffles effectively block the bottom materials, allowing the upper materials to fall to the bottom. This process repeats, ensuring that the medicinal materials can effectively tumble and turn over during the rotation of the inner cylinder, resulting in more even heating and solving the problem of uneven steaming of different parts of the medicinal materials during conventional steaming machines.
[0021] In one or more embodiments, the machine frame is further included, the processing pot is disposed on the machine frame, and the machine frame is provided with a cover door for closing the inner cylinder; the cover door can be connected to the machine frame via a cylinder.
[0022] In one or more embodiments, a liquid outlet pipe is further included. The bottom of the inner cylinder has a liquid outlet. One end of the liquid outlet pipe is connected to the liquid outlet, and the other end faces the juice receiver. The liquid outlet pipe passes through the interlayer and the outer cylinder. Valves are provided at both ends of the liquid outlet pipe for controlling the opening and closing. A filter screen is installed at the liquid outlet to prevent solid components from being discharged with the liquid.
[0023] In one or more embodiments, a lifting system is further included, connected to the outer cylinder, for tilting the outer cylinder and simultaneously tilting the inner cylinder. The lifting system includes a rotating shaft seat connected to the outer cylinder, and a support rod with one end hinged to the outer cylinder and the other end hinged to a hydraulic cylinder; the connection between the outer cylinder and the rotating shaft seat is near the cover, and the connection between the outer cylinder and the support rod is near the liquid outlet. Embodiment 1 of the present invention is as follows: Reference Figures 1-6 A processing device for producing Rehmannia glutinosa (processed using nine methods), comprising: The machine frame 4, the processing tank 2 and the cover door 5 installed on the machine frame 4, as well as the liquid storage tank 2, the steam generator, the juice receiver 3 and the vacuum system; The processing tank 1 includes an inner cylinder 11 and an outer cylinder 12 arranged coaxially, with an interlayer formed between the inner cylinder 11 and the outer cylinder 12; The inner cylinder 11 is rotatably arranged around its central axis; a spray bar 13 is provided at the central axis of the inner cylinder 11, and nozzles 14 are evenly distributed on the spray bar 13; three baffle bars 15 are evenly distributed on the inner wall of the inner cylinder 11, that is, the baffle bars 15 are evenly distributed along the circumference of the inner cylinder 11 and extend along the axial direction of the inner cylinder 11; the spray bar 13 is connected to the liquid storage tank 2; a steam generator is connected to the spray bar 13 and the jacket respectively; a vacuum system is connected to the inner cylinder 11. The juice receiver 3 includes a shroud 31; the shroud 31 is a hollow hemisphere, and the bottom of the shroud 31 is provided with a through hole, which is connected to the liquid inlet of the storage tank 2; the bottom of the inner cylinder 11 is provided with a liquid outlet and a liquid outlet pipe 16, a filter screen is provided at the liquid outlet, one end of the liquid outlet pipe 16 is connected to the liquid outlet and the other end is set towards the juice receiver, the liquid outlet pipe 16 passes through the interlayer and the outer cylinder 12, and valves are provided at both ends of the liquid outlet pipe 16; The cover door 5 is used to close the inner cylinder 11; the cover door 5 is connected to the frame 4 via a cylinder.
[0024] The working principle of this invention is as follows: Open the lid, place the raw Rehmannia glutinosa in the inner cylinder, pour some rice wine (e.g., rice wine equal to 25% of the net weight of the raw Rehmannia glutinosa) into the storage tank, and then close the lid. Spray the rice wine from the storage tank evenly onto the raw Rehmannia glutinosa through the nozzle of the spray bar to soak it. During the soaking process, open the inner cylinder every certain period (e.g., every hour) to stir the material, causing the inner cylinder to rotate and agitate the material. After soaking, turn on the steam generator to introduce steam into the inner cylinder. When the temperature reaches 105°C, stop adding steam and close the valve for steam entering the inner cylinder. Then, introduce steam into the jacketed layer to heat and steam the medicine. During steaming, open the inner cylinder every certain period to stir the material. After steaming, open the outlet to discharge the liquid into the juice receiver, and then flow into the storage tank through the through-hole. Then close the outlet, turn on the vacuum system, and in conjunction with the jacketed heating, dry the remaining solid material in the inner cylinder, completing the first processing step.
[0025] Repeat the above steps until nine processing steps are completed. The difference is that before each subsequent processing step, a small amount of rice wine is added to the storage tank, and before the final processing step, an appropriate amount of cardamom powder is added to the storage tank.
[0026] Embodiment 2 of the present invention is as follows: Based on Embodiment 1, a water vapor separator is also included, which is connected to the steam generator and is located at the outlet of the steam generator.
[0027] Embodiment 3 of the present invention is as follows: Based on Example 1, a heater is provided inside the storage tank.
[0028] Embodiment four of the present invention is as follows: Based on Embodiment 1, a concentration system is also included, which is connected to the storage tank. This system is used to concentrate the liquid in the storage tank before transferring it back into the storage tank.
[0029] Embodiment five of the present invention is as follows: Based on Embodiment 1, the juice receiver also includes a splash guard 32; the splash guard 32 extends upward along the edge of part 31 of the fairing, and the height of the splash guard 32 gradually decreases from the middle to both sides.
[0030] Embodiment six of the present invention is as follows: Based on Embodiment 1, it also includes a water vapor separator and a concentration system; the water vapor separator is connected to the steam generator and is installed at the air inlet of the processing tank; the concentration system is connected to the liquid storage tank; The liquid storage tank is equipped with a heater; the juice receiver also includes a splash guard; the splash guard extends upward along part of the edge of the fairing, and the height of the splash guard gradually decreases from the middle to the sides.
[0031] Embodiment 7 of the present invention is as follows: The processing of Rehmannia glutinosa using the equipment described in Example 6 includes the following steps: S0. Weigh the raw Rehmannia root and add it to the inner cylinder, then close the lid; weigh the rice wine and add it to the storage tank. S1. Spray the rice wine in the storage tank evenly onto the raw Rehmannia glutinosa through the spray bar and nozzle, let it stand for 24 hours. During the standing process, rotate the inner cylinder once every 1 hour and stir it once. Then, introduce steam. When the temperature reaches 105℃, stop adding steam. Before the steam in the inner cylinder is discharged, introduce steam into the jacket and continue to heat the medicine in the interlayer for 6 hours. During the medicine steaming process, rotate the inner cylinder once every 1 hour and stir it once. Then, recover the medicine liquid and dry the remaining solid part at 55℃ to obtain the first recovered liquid and the first prepared Rehmannia glutinosa. The weight of the rice wine sprayed was 25% of the net weight of the raw Rehmannia glutinosa. S2. Spray the mixture of the first recovered liquid and rice wine evenly onto the prepared Rehmannia glutinosa, let it stand for 10 hours, and stir it once every hour during the standing process. Then, introduce steam and stop adding steam when the temperature reaches 105℃. Continue to heat and steam the medicine in layers for 6 hours without venting the steam. Stir it once every hour during the steaming process. Then, recover the medicine liquid and dry the remaining solid part at 55℃ to obtain the second recovered liquid and the second prepared Rehmannia glutinosa. The weight of rice wine added to the spray mixture was 12.5% of the net weight of the raw Rehmannia glutinosa. S3. Spray the mixture of the second recovered liquid and rice wine evenly onto the second-processed Rehmannia glutinosa, let it stand for 10 hours, and stir it once every hour during the standing process. Then, introduce steam. When the temperature reaches 105℃, stop adding steam. Continue to heat the medicine in layers for 6 hours without venting the steam. Stir it once every hour during the steaming process. Then, recover the medicine liquid and dry the remaining solid part at 55℃ to obtain the third recovered liquid and the third-processed Rehmannia glutinosa. The weight of rice wine added to the spray mixture was 6.25% of the net weight of the raw Rehmannia glutinosa. S4. Spray the mixture of the third recovery liquid and rice wine evenly onto the three-processed Rehmannia glutinosa, let it stand for 10 hours, and stir it once every hour during the standing process. Then, introduce steam and stop adding steam when the temperature reaches 105℃. Continue to heat the medicine in layers for 6 hours without venting the steam, and stir it once every hour during the steaming process. Then, recover the medicine liquid and dry the remaining solid part at 55℃ to obtain the fourth recovery liquid and the four-processed Rehmannia glutinosa. The weight of rice wine added to the spray mixture was 3.12% of the net weight of the raw Rehmannia glutinosa. S5. Spray the mixture of the fourth recovery liquid and rice wine evenly onto the prepared Rehmannia glutinosa, let it stand for 10 hours, and stir it once every hour during the standing process. Then, introduce steam. When the temperature reaches 105℃, stop adding steam and continue heating the medicine in a layered manner for 6 hours without venting the steam. Stir it once every hour during the steaming process. Then, recover the medicine liquid and dry the remaining solid part at 55℃ to obtain the fifth recovery liquid and the prepared Rehmannia glutinosa. The weight of rice wine added to the spray mixture was 1.56% of the net weight of the raw Rehmannia glutinosa. S6. Spray the mixture of the fifth recovery liquid and rice wine evenly onto the five-processed Rehmannia glutinosa, let it stand for 10 hours, and stir it once every hour during the standing process. Then, introduce steam. When the temperature reaches 105℃, stop adding steam. Continue to heat the medicine in layers for 6 hours without venting the steam. Stir it once every hour during the steaming process. Then, recover the medicine liquid and dry the remaining solid part at 55℃ to obtain the sixth recovery liquid and the six-processed Rehmannia glutinosa. The weight of rice wine added to the spray mixture was 0.78% of the net weight of the raw Rehmannia glutinosa. S7. Spray the mixture of the sixth recovery liquid and rice wine evenly onto the prepared Rehmannia glutinosa, let it stand for 10 hours, and stir it once every hour during the standing process. Then, introduce steam and stop adding steam when the temperature reaches 105℃. Continue to heat the medicine in layers for 6 hours without venting the steam, and stir it once every hour during the steaming process. Then, recover the medicine liquid and dry the remaining solid part at 55℃ to obtain the seventh recovery liquid and prepared Rehmannia glutinosa. The weight of rice wine added to the spray mixture was 0.39% of the net weight of the raw Rehmannia glutinosa. S8. Spray the mixture of the seventh recovery liquid and rice wine evenly onto the prepared Rehmannia glutinosa, let it stand for 10 hours, and stir it once every hour during the standing process. Then, introduce steam and stop adding steam when the temperature reaches 105℃. Continue to heat the medicine in layers for 6 hours without venting the steam, and stir it once every hour during the steaming process. Then, recover the medicine liquid and dry the remaining solid part at 55℃ to obtain the eighth recovery liquid and the prepared Rehmannia glutinosa. The weight of rice wine added to the spray mixture was 0.2% of the net weight of the raw Rehmannia glutinosa. S9. Spray the mixture of the eighth recovery liquid and rice wine evenly onto the eighth-processed Rehmannia glutinosa, let it stand for 10 hours, and stir it once every hour during the standing process. Then, introduce steam. When the temperature reaches 105℃, stop adding steam. Continue to heat the medicine in layers for 6 hours without venting the steam. Stir it once every hour during the steaming process. Then, recover the medicine liquid and solid part to obtain the ninth recovery liquid and the ninth-processed Rehmannia glutinosa. The weight of rice wine added to the spray mixture was 0.2% of the net weight of the raw Rehmannia glutinosa. S10. Spray a mixture of Amomum villosum powder and the ninth recovery liquid onto the nine-processed Rehmannia glutinosa, and then dry it at 55°C until the moisture content of the solid part is <18.0% to obtain nine-processed Rehmannia glutinosa. The amount of Amomum villosum powder added to the S10 spray mixture is 2% of the net weight of Rehmannia glutinosa.
[0032] Comparative Example 1: Nine-times-processed Rehmannia glutinosa was prepared using a cooking machine (SZZ-500 type CNC cooking pot) and a dryer (RXH-B-2 hot air circulating oven), as well as the process described in Example 7.
[0033] Comparative Example 2: Nine-times-processed Rehmannia glutinosa was prepared using a traditional steaming machine (376L steaming pot) and natural sun-drying, as well as processes other than drying in Example 7.
[0034] Three batches of processed Rehmannia glutinosa produced in Example 7, Comparative Example 1, and Comparative Example 2 were tested according to the standard of processed Rehmannia glutinosa in the "Fujian Province Standard for Processing Traditional Chinese Medicine Pieces". The results are shown in Table 1.
[0035] Table 1
[0036] It can be seen that the processing equipment for producing nine-times-processed Rehmannia glutinosa provided by the present invention has the following advantages: (1) Compared with the combination of traditional cooking machine and dryer, and the use of the cooking machine currently on the market, it can significantly shorten the processing time while ensuring the quality of the product; a single batch can save about 59% of the production time, greatly reducing labor time and energy consumption. (2) By setting up a liquid concentration system, a water vapor separator and a vacuum system, the drying effect is enhanced, the moisture content of each medicinal material after steaming is precisely controlled, and the drying time is further shortened. (3) The extract of the nine-processed Rehmannia glutinosa produced has a relatively higher value of rehmannia glutinosa D and a relatively better value of rehmannia glutinosa D RSD, resulting in a higher quality product. (4) It realizes the combination of traditional Chinese medicine processing and modern production industry, and the integrated full process with precise parameters is suitable for factory promotion and use, effectively reducing the error of repeated operation by personnel and the loss of effective ingredients.
[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A processing device for producing nine-times-processed Rehmannia glutinosa, characterized in that, It includes a processing tank and a storage tank; the processing tank includes an inner cylinder and an outer cylinder arranged coaxially, with a sandwich formed between the inner cylinder and the outer cylinder; the inner cylinder is rotatably arranged around an axis; a spray bar is provided at the central axis of the inner cylinder, and nozzles are evenly distributed on the spray bar; the spray bar is connected to the storage tank.
2. The processing equipment for producing nine-processed rehmannia root according to claim 1, characterized in that, It also includes a steam generator, which is connected to the spray bar and the jacket respectively, for transmitting steam into the inner cylinder and the jacket.
3. The processing equipment for producing nine-processed rehmannia root according to claim 2, characterized in that, It also includes a water vapor separator, which is connected to a steam generator.
4. The processing equipment for producing nine-processed rehmannia root according to claim 1, characterized in that, It also includes a concentration system connected to the processing tank.
5. The processing equipment for producing nine-processed rehmannia root according to claim 1, characterized in that, It also includes a juice receiver; the juice receiver includes a shroud; the shroud is a hollow hemisphere, and the bottom of the shroud has a through hole, which is connected to the inlet of the storage tank.
6. The processing equipment for producing nine-processed rehmannia root according to claim 5, characterized in that, The juice receiver also includes a splash guard; the splash guard extends upward along a portion of the edge of the fairing.
7. The processing equipment for producing nine-processed rehmannia root according to claim 1, characterized in that, It also includes a vacuum system, which is connected to the inner cylinder.
8. The processing equipment for producing nine-processed rehmannia root according to claim 1, characterized in that, The inner wall of the inner cylinder is provided with at least three baffle bars, which extend along the axial direction of the inner cylinder.
9. The processing equipment for producing nine-processed rehmannia root according to claim 1, characterized in that, It also includes a frame, on which the processing tank is mounted, and a cover is provided on the frame for sealing the inner cylinder.