Spray drying is the technology most widely used in the liquid technology shaping and in the drying industry.The drying technology is most suitable for producing solid powder or particle products from liquid materials,such as:solution, emulsion, suspension and pumpable paste states,For this reason,when 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.
Material to be dried
1、Chemical Industry：Sodium fluoride(potassium),alkaline dyestuff and pigment,dyestuff intermediate,compound fertilizer, formic silicic acid,catalyst, sulphuric acid agent, amino acid, whitecarbon and so on.
2、Plastics and resin：AB,ABS emulsion,uric acid resin,phenolic aldehyde resin,urea-formaldehyde resin,formaldehyde resin,polythene,poly-chlotoprene and etc.
3、Food Industry：Fatty milk powder,protein,cocoa milk powder,substitute milk powder,egg white(yolk), Food and plant,oats,chicken juice,coffee,instant dissoluble tea,Sugar, corn syrup, corn starch, glucose,pectin, malt sugar, sorbic acid potassium and etc.
4、Ceramic:aluminium oxide,ceramic tile material,magnesium oxide,talcum and so on.
After been filtered and heated the air enters into the air distrbutor on the top of the dryer.The hot air enters into the drying room in the spiral form and uniformly. 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.Throug the very short time of contacting the heat air,the materials can be dried into the final products.The final products will be discharged continuously from the bottom of the drying tower and from the cyclones. The waste gas will be discharged from blower.
The drying speed is high
when the material liquid is atomized,the surface area of the material will increase greatly
In the hot-air flow,95%-98% of water can be evaporated at a moment
The time of completing the drying is only several seconds
Final products
Own the good uniformity, flow ability & solubility
High in purity and good in quality
The producition procedures are simple,The operation and control are easy
After the drying process, there is no need for smashing and sorting
The product can be adjusted through changing the operation condition within a certain range
| itemparameterspec | 5 | 25 | 50 | 100 | 150 | 200-2000 |
| inlet temperature ℃ | 140-350 automatically controlled | |||||
| outlet temerature ℃ | ~80-90 | |||||
| Max.water evaporation capacity | 5 | 25 | 50 | 100 | 150 | 200-2000 |
| centrifugal spraying nozzle transmission mode | compressed air transmission | Mechanical transmission | ||||
| Rotation speed rpm | 25000 | 18000 | 18000 | 18000 | 15000 | 8000-15000 |
| sprayingdesc diameter mm | 50 | 100 | 120 | 140 | 150 | 180-340 |
| Heat supply | Electricity | Electricity+steam | Electricity+steam,fuel oil and gas | Settled by users themselves | ||
| Max.Electric heating power kw | 9 | 36 | 63 | 81 | 99 | |
| overall dimensions m | 1.8×0.93 ×2.2 | 3×2.7 ×4.26 | 3.7×3.2 ×5.1 | 4.6×4.2 ×6 | 5.5×4.5 ×7 | Depends on the concrete conditions |
| Dried powder restoring tate % | ≥95 | ≥95 | ≥95 | ≥95 | ≥95 | ≥95 |
| Note:For the water evaporation capacity, material property,the inlet and outlet tempratures,please refer the following diagram for reference. |
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