Tower Model Spray Dryer
Two basic types of nozzles are commonly used in spray drying equipments.
Pressure Nozzle
Pressure nozzle or single fluid nozzle use pressure energy for atomization, with feed pressures in the range of 200 to 600 psi. The pressure energy is converted into kinetic energy and the feed issues from the nozzle has a high- speed film which readily breaks. The pressure nozzles are suitable for feed with relatively low viscosity and free of lumps.
Pneumatic Nozzle
Pneumatic or Two Fluid Nozzle use compressed air to provide the energy required for atomization. Compressed air pressure is usually in the range 20 - 100 psig. Feed pressure requirement is low and viscous feed is handled successfully. In pneumatic nozzle the feed can be mixed with compressed air either internally or externally. The external mixing types are used for abrasive feeds. Two Fluid Nozzle atomizer are convenient for low capacity application and popularly used for high quality ceramic powders: Alumina, Bentonite, Carbides, Clays, Ferrites, Steatites, Titanates and Zirconias.
| Model No. | Production Rate* [TPD] | Water Evaporation [Lit / Hr]* | Heat Required [Kcal / Hr] | Installed Power [HP] | Space Required in Meters WxLxH |
|---|---|---|---|---|---|
| DS-1 | 25 | 600 | 5,10,000 | 30 | 10 X 12 X 18 |
| DS-2 | 50 | 1200 | 9,75,000 | 50 | 12 X 15 X 18.5 |
| DS-3 | 100 | 2400 | 19,20,000 | 90 | 15 X 20 X 20.5 |
| DS-4 | 150 | 3600 | 28,80,000 | 120 | 15 X 20 X 21 |
| DS-5 | 200 | 4800 | 38,40,000 | 165 | 15 X 20 X 22 |