Specifications
The spray drying is the technology widest used in the liquid technology shaping and in the drying industry.1.Descriptions
The spray drying is the technology widest used in the liquid technology shaping and in the drying industry. The drying tech -nology is most suitable for producing the powder , particle or block solid products from the materials, such as: solution, emulsion , soliquoid and pumpable paste states . For this reason, when the particle size and distribution of the final products, their residual water contents,the stacking density and the particle shape must meet the precision standard, the spray drying is one of the most desired technologies.
2.Principles
After filtering and heating,the air enters into the air distributor at the top of the drier.The hot air enters into the drying chamber in the spiral from and uniformly .By passing through the high-speed centrifugal spray at the top of the tower ,the material liquid will rotate and be sprayed into the extremely fine mistliquid beads.Through the very short time of contacting the heatair,the materials can be dried into the finished products . The finished products will separator .The waste gas will be discharged from blower.
3.Features
At a high speed of drying, after the spraying of the liquid material, the surface area of the material will be increased greatly. In the hot-air flow, 95%-98%of water can be evaporated at a moment. The time of completing the drying needs only several seconds.
This id especially suitable for drying the heat sensitive materials. Its final products own the good uniformity, mobility, disso -lving capacity. And the final products are high in their purity and good in their quality.
The production procedures are simple and the operation and control are easy.The liquid with the moisture contents 40-60% (for special materials, The contents may reach 90%). can e dried into the powder or particle products once a time . After the drying,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 in a certain scope.It is very convenient to carry out the control and management.
4.Dryed samples
Foodstuff
Amino acid , flavoring , protein , milk powder , pigblood powder , coffee , tea powder , glucose , potassium sorbate , pectin , essence , starch , etc
Ceramics
Aluminum oxide , zirconia , magnesium oxide , titaniumoxide , sodium carbonate , china cla , procelain clay , all kinds of fer -rite and metallic oxide , etc.
Medicines
Vitamin , Chinese traditional medicine , antibiotics , etc.
Chemical products
Dispersed dyestuff , active dyestuff , organic catalyst , white carbon black , yeast , washing powder , potassiumcarbonate , potassium phosphate , inorganic catalyst , all kids of wasted liquid , etc.
5.Technical parameter
Item ↓ | |||||||||||||
Inlet temperature( ) | 140~350 self control | ||||||||||||
Outlet temperature( ) | 80~90 | ||||||||||||
Way of atomizing | High speed centrifugal atomizer | ||||||||||||
Water evaporation capacity(Kg/h) | 5 | 25 | 50 | 100 | 150 | 200 | 500 | 800 | 1000 | 2000 | 3000 | 4500 | 6500 |
Revolution of atomizer(rpm) | 25000 | 22000 | 21500 | 18000 | 16000 | 12000~13000 | 11000~12000 | ||||||
Diameter of atomizing tray(mm) | 60 | 120 | 150 | 180~210 | Decided in accordance with the requirements of process | ||||||||
Max Electric heating power(Kw) | 8 | 31.5 | 60 | 81 | 99 | ||||||||
Dried powder restoring rate(%) | >= 95 | ||||||||||||
L*W*H(m) | 1.6 *1.1 *1.75 | 4 *2.7 *4.5 | 4.5 *2.8 *5.5 | 5.2 *3.5 *6.7 | 7 *5.5 *7.2 | 7.5 *6 *8 | 12.5 *8 *10 | 13.5 *12 *11 | 14.5 *14 *15 | Decided in accordance the flow chart,condition of field and requirements of customers | |||
Notes:The evaporated amout of moisture is concerned with characteristics of raw material,solid cintent and temperature of hot air at inlet and outlet.Customers can choose the way of heat in accordance with the conditions of local energy source and the way of dust removing in accordance with the conditions of raw material.
