Single-effect outer cirulation concentrator The device is to concentrate the material in the occasions such as china traditional drugíwest drugídextroseíamylum sugaríoral liquidíchemistryífoodstuffímonosodium glutamate and milk product and to reclaim the industrial organic solvent such as alcohol.It is suitable to concentrate the thermal sensitive material under lower temperature and vacuum with little batch number and multiple varieties. Feature and profits 1.Alcohol reclamation: large reclamation capacity and the vacuum concentration procedure make it's production capacity five to ten times of that of the old counterpart and can lower the energy consumption for 30%, featuring little investment and high reclamation profit. 2.Cocentrated liquid material: the device uses the modes of outer-heated natural cycle and vacuum negative pressure evaporation featuring swift evaporation with concentration proportion of 1.3; the liquid material concentrates without bubble under full seal state. The drug liquid after concentration by the device features non-contamination and thick drug taste and easy cleaning(it is just to open the up and down cover for cleaning.). The device is easy to handle and it needs a little foundation area for installation. The heater and evaporator use stainless steel for thermal purpose.The polyurethane is used as the thermal material. The surface is treated with sand grinding and surface polishing, meeting with the gmp tandard.