The multifunctional extraction and concentration unit is suitable for various process operations in the traditional Chinese medicine, food, and chemical industries, including atmospheric pressure, micro pressure, water decoction, warm soaking, hot reflux, forced circulation leakage, aromatic oil extraction, and organic solvent recovery. It has the advantages of high efficiency and convenient operation. The multifunctional extraction and concentration unit adopts advanced sealing methods, heating, and reflux methods in the manufacturing process to meet the requirements of drug GMP standards, and is currently a commonly used equipment in the extraction industry both domestically and internationally.

There are three extraction methods for the multifunctional extraction and concentration unit:

1. Water extraction: Water and traditional Chinese medicine are loaded into the extraction tank, and the interlayer heat source (such as steam) is started. After boiling in the tank, the supply of heat source is reduced, and the boiling in the tank can be maintained. The maintenance time depends on the extraction pharmacological process. If closed extraction is required, cooling water should be given to cool the steam vapor and return it to the multi-functional extraction and concentration unit tank to maintain circulation and temperature.

2. Alcohol extraction: First, add the medicine and alcohol into the tank, which must be sealed. Steam the interlayer heat source and turn on the cooling water to reach the required temperature in the tank (depending on the extraction process). Reduce the supply of heat source, so that the rising vapor state alcohol passes through the condenser and becomes liquid alcohol for reflux. To achieve the extraction rate, a pump can be used to force circulation, so that the medicine is sucked out from the lower part of the tank through the pump and then imported back into the tank from the upper part of the cylinder, relieving local channeling.

3. Oil extraction: First, add the traditional Chinese medicine containing volatile oil and water into the extraction tank. Open the circulation valve of the oil separator, adjust the bypass reflux valve, and open the supply heat source valve. When the volatilization temperature is reached, turn on the cooling water for cooling. The cooled liquid should be kept at a certain height in the separator to separate it, and then use the oil-water separator alternately.