Centrifugal spray dryer milk powder dryer fruit powder liquid dryer
powder spray drying equipment
High Speed Centrifugal Spray Dryer
Introduction
Descriptions
The 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.
Features
LPG series high-speed centrifugal spray dryer consists of liquid
conveying, air filtering and heating, liquid atomization, drying
chamber, exhaust collection and control system, etc. The
characteristics of each system are as follows.
1. Liquid conveying system consists of liquid tank, magnetic
filter, pump, etc. to ensure that the liquid enters the atomizer
smoothly.
2. Air filtration system and heating system Before entering the
heater, the fresh air should pass through the front and rear
filters before entering the heater for heating. The heating methods
are electric heater, steam radiator, gas furnace, etc. The choice
of which method depends on the customer's site conditions. To
ensure that the drying medium has high purity when it enters the
drying chamber, the heating air should pass through the
high-efficiency filter before entering the drying chamber.
3. Atomization system
The atomization system consists of a high-speed centrifugal
atomizer with frequency converter, etc. The powder from the high
speed centrifugal atomizer is between 40-120 microns.
Technical parameters
| Specification | LPG-5 | LPG-25 | LPG-50 | LPG-100 | LPG-150 |
| Inlet temp. (℃) | 140-350 |
| Outlet temp. (℃) | 80-90 |
| Spray form | High speed centrifugal atomization |
| Water evaporation(kg/h) | 5 | 25 | 50 | 100 | 150 |
| Atomizer speed(rpm) | 25000 | 22000 | 21500 | 18000 |
| Diameter of atomizing disk(mm) | 50 | 120 | 150 |
| Electric heating power(kw) | 9.6 | 31.5 | 60 | 81 | 99 |
| Recovery rate of dry powder (%) | 99 |
| Occupied length(m) | 1.6 | 4 | 4.5 | 5.2 | 7 |
| Occupied width (m) | 1.1 | 2.7 | 2.8 | 3.5 | 5.5 |
| Height of Tower(m) | 1.75 | 4.5 | 5.5 | 6.7 | 7.2 |
| Lifting height of nozzle(m) | | 2.5 | 2.5 | 3.2 | 3.2 |
Principle
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.Trough 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.
Applications
Chemical Industry: Sodium fluoride(potassium),alkaline dyestuff and
pigment, dyestuff intermediate, compound fertilizer, formic silicic
acid, catalyst, sulphuric acid agent, amino acid, white carbon and
so on.
Plastics and resin: AB,ABS emulsion,uric acid resin,phenolic
aldehyde resin,urea-formaldehyde resin,formaldehyde
resin,polythene,poly-chlotoprene and etc.
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,seasoning
meat,protein,soybean,peanut protein,hydrolysate and so forth.
Sugar, corn syrup, corn starch, glucose, pectin, malt sugar, sorbic
acid potassium and etc.
Ceramic: aluminium oxide,ceramic tile material,magnesium
oxide,talcum and so on.
