The utility model relates to a new device for the production of Chinese medicine, food, health care products and chemical industry. It is composed of one-effect tube heater, evaporation chamber, two-effect tube heater, concentration pot, condensation cooler, vacuum solvent recovery tank, (plate heat exchanger, vacuum buffer tank).
The equipment connection is the two-effect heating chamber and the condensing cooler are respectively connected to the second-effect heating chamber and the condensing cooler through the pneumatic valve through the second steam port of the first-effect external circulation concentrator, and different production methods (double-effect or single-effect) are adopted according to different production scales and requirements.
In double-effect production (vacuum degree of 0.04Mpa, liquid temperature of more than 80 degrees), one-effect secondary steam is used to supply two-effect concentration heating (vacuum degree of 0.08Mpa, liquid temperature of more than 60 degrees), which can be used in large-scale production according to requirements Specific gravity extract: When the specific gravity of the first-effect production extract is about 1.2, and the second-effect combined concentration continues to be concentrated, the extract will be produced when the concentration can reach about 1.4. The use of it in the production process fully achieves the effect of energy saving. In the single-effect single-unit production, the advantages of single-effect production time is short, fast speed, and simple operation are used, and the single-effect production Effectiveness is the best) Give full play to the advantages of single effect can alleviate the urgent production needs. The large area of the condensing cooler can be used for single-effect or combined concentration single-effect production. Two sets of simultaneous production are single-effect production. If the solvent is recovered, it can be operated through the plate buffer tank in the vacuum protection system.