SD Spray Dryer

The spray drying is the widest used technology in the liquid shaping technology and in the drying industry. It is most suitable for producing powder, particle, or block solid products from materials of solution, emulsion, soliquoid and pumpable paste states. Therefore, when the particle size and distribution of the final products, their residual water contents, the stocking density and the particle shape meet the precision standards, the spray drying is one of the most desired technologies.

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.

1, High speed of drying. After the spraying of he material liquid, the surface area of the material will be increased greatly. In the hot-air flow, 95%-98% of water can be evaporated at a moment. The time of completing the drying needs only several seconds.

2, It is especially suitable for drying the heat sensitive materials. It’s final products own the good uniformity, mobility, dissolving capacity. And the final products are high in purity and good in quality.

3, The production procedure is simple and the operational control is easy. The liquid with the moisture contents 40-60%(for special materials, the contents may reach 90%) can be dried into power or particle products once a time. After the drying, there is no need for smashing of sorting, so as to reduce the operation procedures in the production and enchance the purity. The product particle diamenters, looseness and water contents can be adjusted through changing the operation condition in a certain scope. It is very convenient to carry out the control and management.