1summary

Multi functional extraction and concentration of Chinese herbal medicineIt can be used 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, percolation, aromatic oil extraction, and organic solvent recovery. Using this device can achieve better extraction results, shorter time, and higher drug content. The mixing system of this equipment is divided into spiral mixing and paddle mixing. At the same time, this equipment has excellent material selection and is widely used in industries such as pharmaceuticals, food, and chemicals.

1. The absorption rate of the ointment is 10-15% higher than that of the multi energy jar, and the ointment contains more than twice as many effective ingredients. Due to the continuous addition of hot solvent to the medicinal surface during the extraction process, it passes through the medicinal layer at high speed from top to bottom, dissolving the solutes in the medicinal material. The solute content in the medicinal material maintains a high gradient with the solute content in the solvent, and the solutes in the medicinal material dissolve at high speed until they are completely dissolved. Therefore, the extraction rate of effective ingredients is high, and the yield and content of effective ingredients in the ointment are high.

2. Due to the high-speed dissolution of solutes, short extraction time, and synchronous concentration and extraction, it only takes 7-8 hours for medicinal materials to be concentrated into ointment, resulting in high equipment utilization.

3. The equipment is single, occupies a small area, and has a high utilization rate, so the investment is low.

4. Only one solvent is added for extraction, and it is recycled in a sealed device. The solvent in the medicine residue can be basically recovered, so the amount of solvent used is more than 30% less than that in the multi energy extraction tank, and the consumption rate can be reduced by 50-70%. This paves the way for using organic solvents to extract and purify effective ingredients in traditional Chinese medicine.

5. Due to the use of concentrated secondary steam as the heat source for extraction, the extraction solution drawn into the concentrator is at the same temperature as the concentration, which can save more than 50% of the steam used. The operation is very simple and reduces the number of operators.

IIworking principle

Put the medicinal herbs into the extraction tank and add them5-10 times the amount of solvents such as water, ethanol, methanol, acetone, etc. (according to process requirements). Open the straight through and jacket steam valves of the extraction tank, heat the extraction solution to boiling for 20-30 minutes, and then use a filter tube to draw 1/3 of the extraction solution into the concentrator. Close the extraction tank and jacket steam, and open the heater valve to concentrate the liquid material. During concentration, secondary steam is generated and sent to the extraction tank through the evaporator riser as the heat source and solution for extraction, maintaining boiling inside the extraction tank. The secondary steam continues to rise and is condensed into a hot condensate by the condenser. It then falls back into the extraction tank and is added as a new solvent onto the medicine surface. The new solvent passes through the medicinal layer at high speed from top to bottom and reaches the bottom of the extraction tank. The soluble active ingredients in the medicinal materials dissolve in the solvent inside the extraction tank. The extraction solution is drawn into the concentrator through a filtration tube, and the secondary steam generated by concentration is sent to the extraction tank as a heat source and new solvent. The new solvent formed in this way is subjected to large reflux extraction. Therefore, the solute density in the medicinal material maintains a high gradient with the solute density in the solvent, and the solute in the medicinal material is dissolved at high speed until it is completely dissolved (the extraction solution is colorless). At this point, the extraction solution stops being drawn into the concentrator, and the concentrated secondary steam is transferred to the cooler. The concentration continues until it is concentrated into the ointment with the required specific gravity (1.2-1.34) and released for use. The colorless liquid in the extraction tank can be put into the storage tank for reuse in the next batch. The drug residue is discharged from the slag discharge valve. If organic solvent is used for extraction, an appropriate amount of water should be added first, and the straight through and jacket steam should be opened. After recovering the solvent, the slag should be discharged.

IIIMain technical parameters