High Speed Centrifugal Spray Dryer
Spray drying is the most wide applied process in liquid process shaping and drying industry.The drying technology is most suitable for producing solid powder or practical products from liquid material,such as :solution,emulsion,suspension and pumpable paste states.For this reason,the particle size and distribution of the final products,residual water contents,mass density and the particle shape must meet the precise standard,spray drying is one of the most desired technologies.
After fresh air is filtered and heated,it enters into the air distributor which on the top of the drier.The hot air in spiral form equably enters into the drying room.When liquid raw material are passed through the high-speed centrifugal sprayer on the top of the tower,it will be rotated and sprayed into the extreme slim mist liquid beads.Raw material can be dried to the final products instantly while it contact with the heatedair.Finished products are discharged continuously from bottom of the drying tower and cyclones segregator.Wasted air is discharged from blower.
After air gets filtered and heated,it enters into an air distributor on the top of the dryer.The hot air enters into the drying room in a uniformly spiral form.Passing through the high speed centrifugal sprayer on the top of the tower,the material liquid will rotate and be sprayed into the extremely fine mist liquid beads.Through a very short time of contacting the hot air,materials get dried.The final products discharge continuously from the bottom of the drying tower and from the cyclones.The waste gas will be discharged from blower.
High drying speed atomizes material into liquid,the surface of the material increase greatly.It only takes few seconds to evaporate 95-98% water in a hot air flow.This is especially suitable for drying the heat sensitive materials.
The final product has features of good uniformity,flow ability,and solubility.It is in a high purity and quality as well.
The production procedure is simple,operation and control are easy.For material contains 40-60% water(special material can contain more than 90%),it can be dried into powder or particles once a time.After the drying process,there is no need for smashing and sorting,so as to reduce the operation procedures in the production and to enhance the product purity.The product particle diameters,losseness and water contents can be adjusted through changing the operation condition whining a certain range.It is very convenient to carry out control and management.