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Spray dryer is widely used in liquid process forming and drying industry. Suitable for generating powdery and granular solid products from solution, emulsion, suspension and paste liquid raw materials. Therefore, when the particle size distribution, residual water content, bulk density and particle shape of the finished product must meet the standard, spray drying is a better process. It is mainly composed of slurry supply system, atomizer, drying tower, hot air system, exhaust gas discharge and dust removal system, discharge and powder conveying system, etc.
Specification
Feature
Spray drying is a process in which the material liquid is dispersed into fine droplets by means of a nebulizer, and the solvent is rapidly evaporated in the hot drying medium to form dry powder. Generally, spray drying is divided into four stages: a material liquid atomization; B. Mist groups are mixed in contact with hot and dry medium; C evaporation and drying of fog droplets; D The drying product is separated from the drying medium.
Raw material liquid can be solution, emulsion or suspension, can also be molten liquid or paste and other pump can transport liquid form, the product is powdery, granular, hollow ball or pellet.
Sprayer is the key part of spray drying, mainly centrifugal, pressure and air flow sprayer.
Production
