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Working Principle for Skim Milk Powder Spray Dryer
Hot air is distributed downwards with spiral method into the drying
tower after filtering and heating. Meanwhile, solution is nebulized
millions of single granule and form fog drop. Then the fog drop
contact with the hot air and most of the water flash immediately to
form the dry product. These powder and granule fall into the air
exhaust pipe at the bottom of the drying tower, collected in the
material tank.
The features of Skim Milk Powder Spray Dryer
Introduction of Skim Milk Powder Spray Dryer
Character of Skim Milk Powder Spray Dryer
Preface
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 pump- able paste states. For this reason, when the
particle size and distribution of the final products, residual
water contents, volume density and the particle shape must meet the
precise standard, spray drying is one of the most desired
technologies.
After been filtered and heated the air enters into the air
distributor on the top of the dryer. The hot air enters into the
drying room in the spiral form 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. Through 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.
Feature :
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. This is especially suitable for drying the heat sensitive materials. Its final products own the good uniformity, flow ability & solubility. And the final products are high in purity and good in quality. The production procedures are simple and the operation and control are easy. The liquid with moisture contents of 40-60% (for special materials, the contents might be up to 90%.)can be dried into the powder or particle products 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, looseness and water contents can be adjusted through changing the operation condition within a certain range.
ed centrifugal sprayer on the top of the tower, the material liquid
will rotate and be sprayed into the extremely fine mist liquid
beads. Through 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.
Skim Milk Powder Spray Dryer working Steps
Important Tech
Type | LPG | ||||||
5 | 25 | 50 | 100 | 150 | 200-3000 | ||
Inlet temperature | ≤ 350°C | ||||||
Outlet temperature | 80-90°C | ||||||
evaporate capacity (kg/h) | 5 | 25 | 50 | 100 | 150 | 200-3000 | |
driving type | compressed air drive | mechanical drive | |||||
Rotate speed | 25000 | 22000 | 21500 | 18000 | 18000 | 15000 | |
diameter of atomizer tray (mm) | 50 | 120 | 120 | 120 | 150 | 180-340 | |
heating source | electricity | electricity | electricity +steam+fuel oil+coal gas | electricity +steam | electricity +steam+fuel oil+coal gas | To be solved by users | |
Electric-heating power (kw) | 9 | 45 | 60 | 81 | 99 | ||
Dried powder recovery rate (%) | ≥ 95 | ≥ 95 | ≥ 95 | ≥ 95 | ≥ 95 | ≥ 95 | |
Installation size | A(mm) | 1000 | 1290 | 1730 | 2500 | 2800 | according to practical needs |
B(mm) | 2100 | 3410 | 4245 | 5300 | 6000 | ||
C(mm) | 2300 | 4260 | 4645 | 6000 | 6700 | ||
φ D(mm) | 1060 | 1800 | 2133 | 2560 | 2860 | ||
E1(mm) | 1050 | 1200 | 1640 | 2100 | 2180 | ||
E2(mm) | 1050 | 1200 | 1640 | 2100 | 2180 | ||
F(mm) | 750 | 1000 | 1250 | 1750 | 1970 | ||
G(mm) | 530 | 1700 | 1750 | 1930 | 2080 | ||
H(mm) | 530 | 1300 | 1800 | 2600 | 3050 | ||
I(mm) | 530 | 1550 | 1600 | 1780 | 1960 |