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New Spray Dryer for Blood, Milk Powder, Starch, Herbal, Herb Extract, Milk, Stevia, Spirulina, Protein, Coffee
Descriptions
The spray drying technology is the widest used 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, the spray drying is one of the most desired
technologies when the particle size and distribution of the final
products, their residual water contents, and the stocking density
and the particle shape can meet the precision standards.
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.
Features
For the LPG series high speed centrifugal spray dryer, it consists
of of liquid delivery, air filtering and heating, liquid atomizing,
drying chamber, air exhausting and material collecting, control
system and so on, the feature for each system as bellow:
1. The liquid delivery system consists of liquid tank, magnetic
filter, pump and so on as to ensure the liquid enter into the
atomizer smoothly.
2. Air filtering system and heating system
Before the fresh air enter into the heater, it should pass through
the Pre&post filter first, and then enter the heater for
heating. For the heating method, there are electrical heater steam
radiator, gas furnace and so on. Which method to choose depends on
the customer site conditions.To ensure the drying medium enter into
the drying chamber with high purity, the heated air should go
through the High efficiency filter before enters the drying
chamber.
3. Atomizing system
The atomizing system consists of high speed centrifugal atomizer
with inverter and so on.
The powder from the high speed centrifugal atomizer is between
40-120 microns.
4. Drying Chamber system
The drying chamber consists of the spiral shell, hot air
distributor, main tower and relevant fittings.
The Spiral shell and hot air distributor: the spiral shell and hot
air distributor at the air inlet of the tower top can regulate air
flow rotation angle according to the specific condition, guide the
air flow inside the tower effectively and avoid the material stick
on the wall.in the middle there is the position for installing the
atomizer.
Drying tower: The inner wall is SUS mirror sheet, ad welded by the
arc welding. The insulation is rock wool.
The tower is manhole and view port as to convenient to clean and
maintain the tower. For the Tower body cross interface, pipe elbow
are arc butt design, reduce dead angle; sealed type.
The main tower is equipped with air hammer, controlled by the
pulse, and hitting the main drying tower timely as to avoid the
dust stick on the wall
5. Air exhausting and product collecting system
For the material collecting system, there are several types. Such
as cyclone, cyclone+bag filter, bag filter, cyclone +water scrubber
and so on. The method is depending on the material property itself.
For the filtering system for the outlet air, we have filter on
request.
6. Control system
HMI+PLC, each parameter can be displayed on the screen. Every
parameter can be controlled and recorded easily.
Centrifugal spray atomizer Features
1. 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.
2. Its final products own the good uniformity, flow ability &
solubility. And the final products are high in purity and good in
quality.
3. 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. It is very convenient to carry out control
and managment.
Technical parameters
Model | PLG | |||||
5 | 25 | 50 | 100 | 150 | 200-2000 | |
inlet temperatyre ℃ | 140-350 automatically controlled | |||||
outlet temperatyre ℃ | 80-90 | |||||
Max water evaporation capacity kg/h | 5 | 25 | 50 | 100 | 150 | 200-2000 |
centrifugal spraying nozzle transmission mode | compressed air transmission | mechaical transmission | ||||
rotation speed (r.p.m) | 25000 | 18000 | 18000 | 18000 | 15000 | 8000-15000 |
spraying desc diameter (mm) | 50 | 100 | 120 | 140 | 150 | 180-340 |
max electric heating power (kw) | 9 | 36 | 63 | 81 | 99 | settled by customer |
overall dimensions | 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 tryer |
dried powder collection | ≥95 | ≥95 | ≥95 | ≥95 | ≥95 | ≥95 |
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.
FAQ
1. Can I use this spray drying machine to extract some raw
materials?
Yes, in order to help you better, we suggest you provide the name
of the raw material you want to process.
2. Can I use my own raw materials for extraction test?
Yes, of course. We can do extraction tests and send videos and test
reports for your reference.
3. Do you have OEM service? Do you provide parts?
Yes, we will, as long as you provide us with your drawings and
detailed requirements.
4. How can we visit your factory?
If you arrive in Shanghai, you can tell us your specific location.
We will arrange a driver to pick you up.
5. How to transport equipmen?
We usually choose sea transportation. Laboratory models can be
shipped by air according to customer requirements.
6. What is the voltage of the equipment?
The equipment voltage is 380V, if the user requires 220V, the
specific can be customized according to the voltage standard of the
country where your equipment is used.
7. what is your after-sales service?
We provide the English manual of the equipment manual. If you need,
we will send an engineer to install and train workers.