Good process adaptability. It can be used for water extraction and alcohol extraction under normal pressure, negative pressure and positive pressure, especially for low-temperature extraction and concentration of heat-sensitive materials. The low temperature of water extraction can reach above 45℃.
The paste yield is high. Due to the dynamic extraction of drugs, there is a high solute gradient between drugs and solvents, which increases the driving force of dissolution and the output of paste. Compared with the conventional method, it can be improved by more than 5%-20%. Save solvent. Closed loop can save 30%-50%. Save time. The extraction and concentration are completed in one step, and the reflux ratio of the device is twice that of the conventional device, and the whole process only takes 4-6 hours.
And energy consumption is reduced. Because secondary steam is used as heat source, extraction and concentration are carried out at the same time, and the temperature of reflux condensate is close to the boiling temperature in the extraction tank; In addition, polyurethane foam is used as insulation layer, and the temperature and vacuum degree are randomly controlled, so the unit can save steam by more than 50%.
Improve that quality of medicinal components in the extract. Due to the short extraction time and arbitrary temperature control, the quality of the extract is obviously improved.
High degree of automation. Temperature, pressure, flow rate, liquid level and concentration can be automatically set and controlled, with convenient operation and stable performance. Instruments, actuators and PLC are all made of well-known brands at home and abroad, with high reliability.
The heating concentrator can discharge and feed at the same time, and it is not easy to scale and coke. The specific gravity of concentrated solution can reach1.1-1.3. Special materials (materials easy to scale and coke) can be changed from natural circulation to forced circulation system. To meet the special material needs of customers.
New technologies, new processes and new materials are widely used, and the comprehensive technical performance of the unit is good. All instruments, equipment, pipelines and other materials in contact with drugs and solvents in this unit are made of high-quality stainless steel. No dead angle inside, polished to mirror surface, easy to clean; The seal of the bottom cover is changed to air pressure seal, which improves the reliability; The liquid from the extraction tank is changed into a double filter layer, which is not easy to block; Both the extraction tank and separator are equipped with double-acting inertial demister, which has good effect; The heater adopts thin-walled seamless tube with high smoothness; The condenser adopts thin-walled small-caliber seamless tube and double tube, which has good heat transfer effect; The system is equipped with heater and industrial computer, which makes the unit ahead of other similar units in China in terms of process adaptability, performance reliability and operation stability. Has passed the provincial new product appraisal, and the technology is leading in China. Has three national patent applications. Can be designed as semi-automatic or manual operation according to customer requirements.