WO2005067864A1 - Dispositif d'extraction sous vide de medicaments chinois - Google Patents

Dispositif d'extraction sous vide de medicaments chinois Download PDF

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Publication number
WO2005067864A1
WO2005067864A1 PCT/CN2005/000023 CN2005000023W WO2005067864A1 WO 2005067864 A1 WO2005067864 A1 WO 2005067864A1 CN 2005000023 W CN2005000023 W CN 2005000023W WO 2005067864 A1 WO2005067864 A1 WO 2005067864A1
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Prior art keywords
tank
extraction
valve
cooler
extraction device
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PCT/CN2005/000023
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English (en)
French (fr)
Inventor
Xiaodong Chen
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Xiaodong Chen
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Priority to JP2006548076A priority Critical patent/JP4762154B2/ja
Publication of WO2005067864A1 publication Critical patent/WO2005067864A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0292—Treatment of the solvent
    • B01D11/0296—Condensation of solvent vapours
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms

Definitions

  • the utility model relates to a pharmaceutical equipment, in particular to a reduced-pressure extraction device during the extraction of traditional Chinese medicine. Background technique
  • the boiling point of the solution under normal or micro-pressure is the operating temperature of the extraction process.
  • the boiling point of water under normal pressure is about 100 ° C (close to the boiling point of water)
  • the alcohol extraction is about 70 ° C under normal pressure
  • the boiling point is even higher in the slightly pressured state.
  • the effective medicinal ingredients of many materials are not suitable for extraction at such a high temperature.
  • the traditional process often uses the method of impregnation at normal temperature or pressure infiltration. However, this takes a long time (for example, dozens of times). Hours or even many days), so that it cannot meet the requirements of modern scale production.
  • the disadvantages of this extraction method are: low output and poor economic efficiency.
  • the vacuum tube cannot be connected to the extraction tank, otherwise a large amount of solvent vapor will be brought into the vacuum system, and the purpose of reflux cannot be achieved;
  • the vacuum tube is connected to the upper opening of the oil-water separator.
  • This connection method can facilitate the extraction of the solvent vapor generated in the tank to the condenser due to negative pressure and allow the cooled liquid to reach the separator.
  • the degree is greater than the vacuum of the extraction tank, and the pressure difference is unbalanced, so the condensate cannot be quickly flowed into the extraction tank to complete the circulation loop, unless the separator has a sufficient vertical height to the extraction tank so that the static pressure of this liquid is sufficient to overcome the vacuum. Negative pressure, otherwise the condensate will not flow back smoothly, but in actual use, the difference in height between the upper mouth of the separation and extraction tank is already very small, so this cannot be done.
  • the purpose of the utility model is to provide a reduced-pressure extraction device for the extraction of traditional Chinese medicines, which can not only perform extraction at a low temperature boiling point under vacuum, but also enable the solvent after condensation to smoothly return to maintain a constant vacuum.
  • a reduced-pressure extraction device for Chinese medicine extraction comprising an extraction tank, a condenser and a cooler, one end of the condenser is in communication with the steam outlet of the extraction tank, and the other The end communicates with the return liquid inlet of the extraction tank through a cooler, and is characterized in that a liquid receiving tank for maintaining the vacuum state of the extraction tank is provided between the cooler and the feed port of the extraction tank.
  • the liquid receiving tank is divided into an upper tank body and a lower tank body by a partition plate provided inside the tank body.
  • a feeding valve connected to a cooler is provided on the top of the upper tank body, and an upper part of the upper tank body is provided with a vacuum pump.
  • Vacuum valve, the lower part of the upper tank is provided with a feeding valve communicating with the lower tank, a balance valve is also provided between the upper tank and the lower tank; the upper part of the lower tank is provided with a vent valve communicating with the atmosphere,
  • the bottom of the lower tank is provided with a discharge valve which is in communication with the feed port of the extraction tank.
  • a check valve is provided at the partition to allow the material to flow from the upper tank to the lower tank.
  • the check valve automatically opens, and the material automatically flows into the lower tank body. After all the material flows into the lower tank body, the check valve automatically closes again.
  • the quantity of material in the lower tank can be observed at any time, and the discharge valve is opened in time.
  • a sight glass for observing the amount of material in the tank can be provided on the lower tank.
  • Some Chinese medicines produce a large amount of foam during the extraction process.
  • a trap is set on the top of the extraction tank, and one end of the condenser is connected to the extraction tank through a foam trap.
  • an oil-water separator can be set between the cooler and the receiver. Oil-water separator is used to realize the separation of aromatic oil.
  • a filter and a circulation pump are installed between the bottom and the top of the extraction tank.
  • the extraction liquid (solution) can be forcedly refluxed from the bottom of the tank through the filter and the circulation pump.
  • the utility model is provided with a liquid receiving tank at the lower port of the oil-water separator (if the device without the oil-water separator is directly at the lower port of the cooler), its structure is basically the same as that of the decompression and concentration device.
  • the receiver is similar.
  • the utility model can keep extraction during operation and always enter fiS under a low-temperature boiling state with a certain degree of vacuum, which not only greatly shortens the extraction time and improves the efficiency, but also enables the effective ingredients of the material to be preserved, which improves the product quality, and also Can effectively save energy.
  • FIG. 1 is a schematic structural diagram of the present invention
  • FIG. 2 is a schematic structural diagram of a liquid receiving tank according to the present invention. detailed description
  • the utility model relates to a decompression extraction device for Chinese medicine extraction, which comprises an extraction tank 1, a condenser 2 and a cooler 3.
  • a trap 14 is provided on the top of the extraction tank 1, and one end of the condenser 2 is provided.
  • the trap 14 is in communication with the extraction tank 1, the other end is in communication with the upper end of the cooler 3, and the lower end of the cooler 3 is in communication with
  • the upper end of the oil-water separator 15 is in communication, the lower end of the oil-water separator 15 is in communication with the liquid receiving tank 4, and the lower end of the liquid receiving tank is in communication with the feed port at the upper end of the extraction tank 1.
  • the liquid receiving tank 4 is divided into an upper tank body and a lower tank body by a partition plate 5 provided inside the tank body.
  • a check valve 12 is provided at the partition plate.
  • the check valve 12 automatically opens, and the material automatically flows into the lower tank.
  • the check valve 12 automatically closes again, and the check valve makes the liquid (including gas) You can only exercise from top to bottom.
  • the top of the upper tank is provided with a feed valve 6 communicating with the oil-water separator 15, the upper part of the upper tank is also provided with a vacuum valve 7 communicating with a vacuum pump, and the lower part of the upper tank is provided with a lower tank communicating with the lower tank.
  • a valve 8 is further provided with a balancing valve 9 between the upper tank body and the lower tank body; a vent valve 10 communicating with the atmosphere is provided at the upper part of the lower tank body, and the bottom of the lower tank body is provided with a feed port for the extraction tank 1 ⁇ ⁇ ⁇ 11 ⁇ The discharge valve 11.
  • the feed valve 6 and the vacuum valve 7 are normally open valves, so that the entire extraction system forms a vacuum.
  • the feed liquid can easily go down to the upper part of the tank and flow from the lower valve 8 to the lower tank.
  • the return valve 12 flows to the lower tank.
  • the vent valve 10 is closed, and the balance valve 9 is opened. This makes the vacuum in the lower tank consistent with the upper tank. It flows into the lower tank smoothly.
  • the discharge valve 11 is closed at this time. Observe the liquid in the lower tank through the sight glass 13. When the liquid in the lower tank is full, close the balancing valve 9 and the discharging valve 8 and open the vent valve 10.
  • the lower tank communicates with the atmosphere, and the valve of the check valve 12
  • the tablet is vacuum sucked by the upper tank, the upper and lower tanks are cut off, and then the discharge valve 11 is opened.
  • the extraction tank 1 is negative pressure (but slightly less than the vacuum of the upper tank)
  • the material liquid will be automatically sucked into the extraction tank. 1 and check valve 12 will not open.
  • close the discharge valve 11 and the vent valve 10 open the balance valve 9 and the discharge valve 8, and then repeat the previous operation.
  • the extraction can be kept under a low-temperature boiling state with a certain degree of vacuum, which not only greatly shortens the extraction time, improves the efficiency, but also saves the effective ingredients of the material. That improves product quality.
  • the first time is alcohol extraction
  • Dosage 100 kg of Chinese traditional medicine dry sage (with coarse crushing rod length ⁇ 3 sides), 300 kg of alcohol (raw material 95% medicinal alcohol), 300 kg of water;
  • Cooling water outlet temperature 23 ° C; temperature inside the tank during extraction: 42 ⁇ 43 ° C (boiling temperature) vacuum degree:-0. 082Mpa;
  • Cooling water flow 3.5m 3 / h ; Heating steam pressure: 0. 06 Mpa ;
  • Recirculation time of solvent in liquid receiving tank After about 1.5 hours after the first extraction
  • Extraction tank extraction time during alcohol extraction about 20 minutes. After extraction, add water to extract,
  • Water extraction cooling water temperature inlet 18 ° C (because the cooling water is recycled, it is higher than the initial temperature of the cooling water during alcohol extraction) outlet 27 ° C;
  • the initial temperature in the water extraction tank 22 ⁇ 30 minutes to 42 ° C and then to 55 V to maintain a stable boiling temperature; water extraction plus steam pressure: 0. 14 Mpa;
  • Water extraction vacuum -0. 08 Mpa.
  • the shape and position of the liquid receiving tank (because it is a negative pressure suction, its discharge port can be lower than the inlet of the extraction tank) can be set according to the specific conditions of the operating place. It can also be designed horizontally, but the principle is the same.
  • the volume can be determined by the size of the extraction tank and the amount of solvent added during extraction. Generally, 1/10-1/5 of the volume of the extraction tank is sufficient.
  • This device is especially suitable for alcohol extraction, both the solvent and the active ingredients can be kept without losing, which improves the product quality. During extraction, not only the extraction time is greatly reduced, the efficiency is improved, but also energy can be effectively saved.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Description

用于中药提取的减压提取装置 技术领域
本实用新型涉及一种制药设备，具体地说是一种在中药提取时的减压提取装 置。 背景技术
在目前的中药提取中，大都采用常压和微压提取工艺，即在常压或微压下溶 液的沸点就是提取工艺操作的温度。 水在常压下的沸点为 100°C左右（接近水的 沸点）， 醇提在常压下为 70°C左右， 微压状态下沸点还要高些。但不少物料的药 用有效成份并不适宜在这样高的温度下提取，这时传统工艺往往釆用常温浸渍或 加压渗漉的方法， 然而这要化费很长的时间 （例如几十个小时甚至好多天)， 从 而不能适应现代化规模生产的要求，这种提取方法的缺点是： 产量低， 经济效益 差。
为了在提高产量的同时又不破坏物料的药用有效成份，就需要在提取时采用 减压的方法， 此时， 可以将溶液的沸点降低（例如醇提在 -0. 072Mpa时沸点为 44 。C )。 但这种方法在目前的工艺操作时往往遇到溶媒回流的问题而难以实现。 这 是因为：
首先， 真空管不能接在提取罐上， 否则会将溶媒蒸汽大量带入真空系统， 而 达不到回流的目的；
其次，是将真空管接在油水分离器上口，这种接法能有利提取罐产生的溶媒 蒸汽因负压而流到冷凝器并使冷却后的液体到达分离器，但由于此时分离器真空 度大于提取罐真空度，压差不平衡，因而不能使凝液迅速下流进入提取罐从而完 成循环回路，除非分离器到提取罐有足够的垂直高度而使这段液体静压力足以克 服真空度的负压， 否则凝液不能顺利回流， 但在实际使用过程中， 分离与提取罐 上口的髙位差已经很小了， 因而做不到这一点。
而在其他位置设置真空口更是不可能。 发明内容
本实用新型的目的是提供一种既能使提取在真空下低温沸点进行，又能使冷 凝后的溶剂能顺利回流维持真空不断的用于中药提取的减压提取装置。
本实用新型的目的是这样来实现的： 一种用于中药提取的减压提取装置， 包括提取罐、冷凝器和冷却器，冷凝器的一端与提取罐的蒸汽出口相连通， 另一 端通过冷却器与提取罐的的回流液进口相连通，其特征是：在冷却器与提取罐的 进料口间设有用来保持提取罐内处于真空状态的受液罐。
所述受液罐由设置在罐体内部的隔板分为上罐体和下罐体，在上罐体顶部设 有与冷却器相通的进料阀，上罐体的上部设有与真空泵相通的真空阀，上罐体的 下部设有与下罐体相通的下料阀，在上罐体和下罐体间还设有平衡阀；在下罐体 的上部设有与大气相通的放空阀，下罐体的底部设有与提取罐的进料口相通的出 料阀。
在受液罐中， 为方便上罐体内物料流入到下罐体内， 可以实现自动化控制， 在所述隔板处设有使物料自上罐体内流到下罐体内的止回阀，当上罐体内的物料 达到一定数量时， 止回阀自动打开，物料便自动流到下罐体内， 物料全部流入下 罐体后， 止回阀又自动关闭。
为便于操作， 能随时观察到下罐体内物料数量， 及时打开出料阀，在下罐体 上可设有用来观察罐体内物料量的视镜。
某些中药在提取过程中会产生大量泡沫，为去掉泡沬，在提取罐的顶部设有 捕沬器， 冷凝器的一端通过捕沫器与提取罐相连通。
物料从冷却器流出后，在需要提出有些物料中所含芳香油时，可在冷却器和 受液罐间设置油水分离器。 用油水分离器来实现芳香油的分离。
为进一步加快提取速度，提高产量，在提取罐的底部与顶部间设有过滤器和 循环泵， 可将提取液 (溶液) 从罐底下部通过过滤器和循环泵进行强制回流。
与现有技术相比，本实用新型在油水分离器的下口（如不用油水分离器的装 置则直接在冷却器的下口）设置一台受液罐，其构造基本与减压浓缩装置的受液 罐类似。本实用新型在操作时可保持提取始终在一定真空度的低温沸腾状态下进 fiS 不但大大缩短了提取时间， 提高了效率， 而且又使物料有效成分得以.保存， 提髙了产品质量， 同时还能有效地节约能源。 附图说明
图 1是本实用新型结构示意图；
图 2是本实用新型所述受液罐结构示意图。 具体实施方式
一种本实用新型所述的用于中药提取的减压提取装置， 它包括提取罐 1、冷 凝器 2和冷却器 3，在提取罐 1的顶部设有捕沬器 14，冷凝器 2的一端通过捕沬 器 14与提取罐 1相连通， 另一端与冷却器 3的上端相连通， 冷却器 3的下端与 油水分离器 15的上端相连通，油水分离器 15的下端与受液罐 4相连通，受液罐 下端与提取罐 1上端的进料口相连通。 '
受液罐 4由设置在罐体内部的隔板 5分为上罐体和下罐体，为可以自动控制 上罐体内物料流入到下罐体内， 在隔板处设有止回阀 12， 当上罐体内的物料达 到一定数量时， 止回阀 12自动打开， 物料便自动流到下罐体内， 物料流入下罐 体后， 止回阀 12又自动关闭，止回阀使得液体（包括气体）只能自上而下运动。
在上罐体顶部设有与油水分离器 15相通的进料阀 6, 上罐体的上部还设有 与真空泵相通的真空阀 7, 上罐体的下部设有与下罐体相通的下料阀 8， 在上罐 体和下罐体间还设有平衡阀 9;在下罐体的上部设有与大气相通的放空阀 10，下 罐体的底部设有与提取罐 1的进料口相通的出料阀 11。
工作时， 进料阀 6和真空阀 7是常开阀门， 使得整个提取系统形成真空，料 液很容易下到罐体上部， 并从下料阀 8流到下罐体， 当然也可从止回阀 12流到 下罐体， 这时放空阀 10是关闭的， 而平衡阀 9是开启的， 这样使得下罐体内的 真空度与上罐体一致， 料液能以很小的位差而顺利流入下罐体， 当然， 此时出料 阀 11是关闭的。通过视镜 13观察下罐体内料液， 待下罐体料液将满时， 关闭平 衡阀 9和下料阀 8， 开启放空阀 10， 这时下罐体内与大气相通， 止回阀 12的阀 片被上罐体真空吸住， 上下罐体隔断， 再开启出料阀 11， 由于提取罐 1呈负压 (但略小于上罐体的真空度）， 此时料液会被自动吸入提取罐 1内， 且止回阀 12 不会打开。待出料完成后再关闭放料阀 11及放空阀 10， 打开平衡阀 9和下料阀 8, 此后则重复前次操作。
采用本实用新型所述的减压提取装置提取中药时，可保持提取始终在一定真 空度的低温沸腾状态下进行， 不但大大缩短了提取时间， 提高了效率， 而且又使 物料有效成分得以保存， 即提高了产品质量。
通过实验测得以下数据： 生产中使用 1 m3 中药提取罐，
第一次为醇提，
投料量： 中药干料败浆草 100公斤（经粗粉碎杆长≤3麵)、酒精（原料 95% 药用酒精） 300公斤， 水 300公斤；
醇提运行时间 2小时 20分；
冷却水初温： ire ; 物料初温： 13°C ;
冷却水出口温度： 23°C ; 提取时罐内温度： 42〜43°C (沸腾温度） 真空度： - 0. 082Mpa;
冷却水流量： 3. 5m3/h; 加热蒸汽压力： 0. 06 Mpa;
受液罐溶媒回流出液时间： 第一次提取约 1个半小时后；
第二次提取停车时；
提取罐醇提时提取液出料时间： 约 20分钟。 醇提出料后加水提取，
水提加水时间： 约 10分钟 （真空状态下加水故较快）；
7]C提时间： 2个小时；
水提冷却水温度： 进口 18°C (因冷却水循环利用， 故高于醇提时冷却水初 温） 出口 27°C ;
水提罐内起始温度： 22 Ό 30分钟内升至 42 °C后升到 55 V维持稳定沸腾温度； 水提加蒸汽压力： 0. 14 Mpa;
水提真空度: -0. 08 Mpa。 在本实用新型中，受液罐的形状和位置（由于是负压吸料，其出料口可低于 提取罐的进料口）可视操作场所具体情况而设置。亦可设计成卧式的， 但原理相 同。其体积大小可视提取罐大小及提取时加入溶媒的量而定，一般以提取罐容积 的 1/10— 1/5即可。这种装置特别适用于醇提，溶媒和有效成份都可以保持不会 流失， 提高了产品质量。在提取时不但大大缩短了提取时间， 提高了效率， 而且 还能有效地节约能源。

Claims

权 利 要 求 书
1、一种用于中药提取的减压提取装置， 包括提取罐（1 )、 冷凝器（2)和冷 却器（3)， 冷凝器（2)的一端与提取罐（1 )的蒸汽出口相连通， 另一端通过冷 却器 （3) 与提取罐 （1 ) 的回流液进口相连通， 其特征是： 在冷却器（3) 与提 取罐 （1 ) 的进料口间设有用来保持提取罐（1 ) 内处于真空状态的受液罐 （4)。
2、根据权利要求 1所述的减压提取装置， 其特征是： 所述受液罐（4) 由设 置在罐体内部的隔板（5)分为上罐体和下罐体，在上罐体顶部设有与冷却器（3) 相通的进料阀（6)， 上罐体的上部设有与真空泵相通的真空阀（7)， 上罐体的下 部设有与下罐体相通的下料阔（8)， 在上罐体和下罐体间还设有平衡阀（9); 在 下罐体的上部设有与大气相通的放空阀 （10)， 下罐体的底部设有与提取罐（1) 的进料口相通的出料阀 （11 )。
3、根据权利要求 2所述的减压提取装置， 其特征是： 在所述隔板（5)处设 有使物料自上罐体内流到下罐体内的止回阀 （12)。
4、 根据权利要求 2或 3所述的减压提取装置， 其特征是： 在下罐体上设有 用来观察罐体内物料量的视镜（13)。 .
5、根据权利要求 1所述的减压提取装置， 其特征是： 在提取罐（1 )的顶部 设有捕沬器（14), 冷凝器 (2)的一端通过捕沬器（14)与提取罐（1)相连通。
6、根据权利要求 1所述的减压提取装置， 其特征是： 在冷却器（3)和受液 罐 （4) 间设有油水分离器（15)。
7、根据权利要求 1所述的减压提取装置， 其特征是： 在提取罐（1 )的底部 与顶部间设有过滤器（16)和循环泵 （17)。
8、 根据权利要求 1所述的减压提取装置， 其特征是： 所述受液罐（4)的容 积是提取罐 ( 1 )容积的 1/10〜1/5。
PCT/CN2005/000023 2004-01-09 2005-01-07 Dispositif d'extraction sous vide de medicaments chinois WO2005067864A1 (fr)

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CN101836935A (zh) * 2010-01-14 2010-09-22 徐自升 带有内置真空浓缩装置和顶盖冷凝的常压煎药机
CN102172438A (zh) * 2011-03-09 2011-09-07 兰州大学 天然药物超声连续提取浓缩装置
CN102371083A (zh) * 2010-08-17 2012-03-14 赵履祥 可多种供能的连续逆流浸出装置
CN103146487A (zh) * 2013-04-08 2013-06-12 云南绿宝香精香料股份有限公司 具有提取和分离双重功效的水蒸汽蒸馏装置
CN103405484A (zh) * 2013-08-26 2013-11-27 重庆工商大学 一种白花败酱根抗氧化制剂的制备方法
CN105476855A (zh) * 2015-12-11 2016-04-13 哈尔滨墨医生物技术有限公司 一种中药煎药装置
CN105919809A (zh) * 2016-04-22 2016-09-07 天津安之和合基因科技有限公司 一种智能中药煎药壶
CN107502543A (zh) * 2017-09-12 2017-12-22 奥星制药设备（石家庄）有限公司 一种恒温真空中药发酵提取系统设备
CN107694145A (zh) * 2017-09-30 2018-02-16 福州法莫优科机械科技有限公司 药液提取浓缩方法
CN108261797A (zh) * 2016-12-31 2018-07-10 九芝堂股份有限公司 一种蒸馏自动控制装置及其应用
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CN105125406A (zh) * 2015-09-08 2015-12-09 培力(南宁)药业有限公司 高效动态煎药机
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CN101836935A (zh) * 2010-01-14 2010-09-22 徐自升 带有内置真空浓缩装置和顶盖冷凝的常压煎药机
CN102371083A (zh) * 2010-08-17 2012-03-14 赵履祥 可多种供能的连续逆流浸出装置
CN102172438A (zh) * 2011-03-09 2011-09-07 兰州大学 天然药物超声连续提取浓缩装置
CN103146487A (zh) * 2013-04-08 2013-06-12 云南绿宝香精香料股份有限公司 具有提取和分离双重功效的水蒸汽蒸馏装置
CN103405484A (zh) * 2013-08-26 2013-11-27 重庆工商大学 一种白花败酱根抗氧化制剂的制备方法
CN105476855A (zh) * 2015-12-11 2016-04-13 哈尔滨墨医生物技术有限公司 一种中药煎药装置
CN105919809A (zh) * 2016-04-22 2016-09-07 天津安之和合基因科技有限公司 一种智能中药煎药壶
CN108261797A (zh) * 2016-12-31 2018-07-10 九芝堂股份有限公司 一种蒸馏自动控制装置及其应用
CN107502543A (zh) * 2017-09-12 2017-12-22 奥星制药设备（石家庄）有限公司 一种恒温真空中药发酵提取系统设备
CN107694145A (zh) * 2017-09-30 2018-02-16 福州法莫优科机械科技有限公司 药液提取浓缩方法
CN107694145B (zh) * 2017-09-30 2023-08-22 福州法莫优科机械科技有限公司 药液提取浓缩方法
CN109893447A (zh) * 2019-04-04 2019-06-18 亳州华宇中药饮片有限公司 一种中药材切制前的软化方法
CN110754940A (zh) * 2019-10-30 2020-02-07 灵源药业有限公司 一种中药降压茶生产用熬制设备
CN112522076A (zh) * 2020-12-08 2021-03-19 重庆海关技术中心 一种用于鉴定人参真伪的试剂盒
CN112630390A (zh) * 2020-12-29 2021-04-09 山东大学 一种能够智能反馈的中药成份检测系统及工作方法
CN112630390B (zh) * 2020-12-29 2022-02-11 山东大学 一种能够智能反馈的中药成份检测系统及工作方法
CN114210090A (zh) * 2021-11-03 2022-03-22 重庆化工职业学院 一种中药提取浓缩实验教学设备
CN114870430A (zh) * 2022-06-20 2022-08-09 信阳农林学院 一种中药原料连续萃取装置及萃取方法

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