Medicine Extraction Equipment And Processes

Multifunctional extraction tank

Multifunctional extraction tank Heating reflux circulation extraction Pretreatment → Heating and stirring extraction → Filtration and separation Temperature 60-100℃, normal pressure Flexible process, solvent saving, high paste yield Large-scale production of Chinese medicine, food, and chemical industry

Working principle: Put the medicinal materials into the tank, add solvent, turn on the heating system to make the extract boil, and part of the extract is pumped into the concentration tank. The secondary steam generated by the concentration is condensed and refluxed to the extraction tank as a new solvent to form a circulation extraction.

Features: It can be used for a variety of extraction processes, such as normal pressure, micro-pressure, water decoction, warm immersion, etc.; fully closed cycle extraction and concentration, saving energy; can reduce the amount of solvent according to different drugs, increase the amount of feed, and improve the paste yield; hot reflux, normal pressure extraction, low temperature concentration, shortening production time.

Scope of application: widely used in Chinese medicine, food, chemical industry and other industries.

1. Preparation stage: Check whether all parts of the equipment are normal, crush or slice the medicinal materials as required, and put them into the extraction tank, and add an appropriate amount of solvent.

2. Extraction stage: Turn on the heating and stirring device to make the solvent fully contact with the medicinal materials and extract. According to the characteristics of the medicinal materials and the extraction requirements, control the extraction temperature and time. Generally, the extraction temperature is 60-100℃ and the extraction time is 1-3 hours.

3. Filtration and separation: After the extraction is completed, the extract is separated from the medicinal residue by the filtration device to obtain a crude extract.

Multifunctional extraction and concentration equipment

Multifunctional extraction concentrator Extraction + concentration integration Heating extraction → decompression concentration → paste collection Extraction temperature ≈ boiling, concentration negative pressure Function integration, process saving, strong controllability Laboratory research and development, small and medium-sized pilot production line

Working principle: Integrate extraction, separation, distillation, concentration and other functions. Put the medicinal materials into the extraction tank, add solvent for steaming, turn on the vacuum to draw the medicinal liquid into the heater evaporator for heating and evaporation, and the secondary steam condenses and flows back to the top of the extraction tank for spraying, continuous circulation, and finally collect the paste.

Features: The equipment has various functions and can realize various process operations; it has a wide range of applications and can be used in the medical and health care, pigment, food and beverage industries; it can ensure that the effective ingredients will not be lost and the extracted substances can be recovered; it is simple to operate, highly controllable, and the machine performance is safe and reliable.

Scope of application: It is suitable for laboratory research and development and small and medium-sized pilot production lines in universities, research institutes, enterprises and institutions, and is also suitable for trial production in small and medium-sized pharmaceutical factories.

1. Extraction: Put the medicinal materials into the extraction tank, add solvent, heat to boiling for extraction, and stir as needed during the extraction process.

2. Concentration: After the extraction is completed, the extract is transferred to the concentration device and evaporated and concentrated under reduced pressure to increase the concentration of the extract.

3. Paste collection: When the concentrate reaches the specified relative density or concentration, stop concentrating and obtain an extract-like drug extract.

Key process points

1. Common requirements for pretreatment

Grinding degree: Most equipment needs to grind the medicinal materials into particles or powder (such as 20-100 mesh) to increase the solvent contact area and improve the extraction efficiency.

Dryness: Herbs with high water content need to be dried in advance (water content <10%) to avoid solvent dilution or mildew.

2. Solvent selection

Water: Suitable for water-soluble components (such as alkaloid salts and glycosides), low cost but easy to mildew, need to be handled in time.

Organic solvents (ethanol, methanol, etc.): Extract fat-soluble components (such as volatile oils and flavonoids), need to pay attention to recycling and safety.

3. Core parameters of process control

Temperature: High temperature (such as multi-function tank) accelerates the dissolution of water-soluble components.

Time: Multi-function tank/concentrator takes 1-3 hours.

Stirring/shear rate: The stirring rate of the multi-function tank is low (10-30 rpm).