The use of long net dryer is very wide, and it is currently used in gelatin, pharmaceutical, food, biology, chemical and other fields. However, the selection criteria in each field are not the same, because the requirements and parameters of dry materials in various fields are quite different. . For example: in the gelatin industry, the pre-drying gelatin concentration is low, the temperature is too high easy to glue, the use of stepped temperature drying. In the pharmaceutical industry (especially traditional Chinese medicine), the viscosity of the extract is generally large, and the drying temperature requirements are strict, the melting point control should be precise (especially the polysaccharide material), the control range of the vacuum degree should meet the requirements of the heating temperature of different sections and should have the function of online automatic adjustment, etc. The company according to different manufacturers of different users of different production custom processing of long net dryer, as well as long net dryer supporting the use of lithium chloride dehumidifier.