Single-effect concentrator is widely used in the extraction of traditional Chinese medicine. The efficacy of biomedical products needs to be guaranteed based on the activity of the target extract. The traditional extraction tank process firstly evaporates and pulverizes the animal and plant materials at high temperature, then extracts with organic solvent and dried at high temperature. Concentrated into powder, two high temperatures basically destroy the activity of the target product, so that the product loses its theoretical effect. The biofilm extraction tank of Kaiyuan Bio is crushing the raw material of animal and plant material, and extracting it with high precision through the ultrafiltration membrane nanofiltration membrane. First, the working principle of single-effect concentrator The combination of external heating natural circulation and vacuum negative pressure evaporation, the evaporation speed is fast, the concentration ratio can reach 1.3; the liquid material is not foam concentrated in the fully sealed state, and the liquid concentrated by the equipment has no pollution, and the medicine taste is strong. The features are easy to clean and the upper and lower covers of the heater can be opened for cleaning. The device is easy to operate and has a small footprint. The heater and the evaporator are made of stainless steel insulation structure, and the outer layer of the insulation layer is made of stainless steel sheet. Second, the application of single-effect concentrator Single-effect concentrator is suitable for industrial alcohol recovery of traditional Chinese medicine, western medicine, glucose, brewing, starch, oral liquid, chemical, food, natural flavor, food additive, monosodium glutamate, dairy, etc. It can be used for small batch and variety of low heat sensitivity. The vacuum is concentrated. It is mainly used for the concentration, separation and purification of marine organisms, animal and plant medicines, fermenting microorganisms, biochemical products, fruit juices, dairy products and cosmetics. It can also purify, separate and concentrate the acid, alkali and organic substances of enterprise sewage, and reach the standard of water. Third, the characteristics of single-effect concentrator The slurry pipeline, the overflow water discharge pipeline, and the equipment for discharging the concentrate such as pipes, valves, sand pumps, etc. In order to ensure continuous production, the pumping station that discharges the concentrate should be “double matched†and connected by a tee and a valve. When a fault occurs, it should be able to start the standby pump station and perform maintenance at the same time. The pump station should have a high pressure water recoil device.