Changzhou Ruide Drying Engineering Technology Co., Ltd
Model No.: LPG
Packaging: Wooden Case
Place of Origin: China
Supply Ability: 2Sets/Month
High Speed Centrifugal Atomizing Spray Dryer Description:
High Speed Centrifugal Atomizing Spray Dryer 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.
A spray dryer takes a liquid stream and separates the solute or suspension as a solid and the solvent into a vapor. The solid is usually collected in a drum or cyclone. The liquid input stream is sprayed through a nozzle into a hot vapor stream and vaporised. Solids form as moisture quickly leaves the droplets. A nozzle is usually used to make the droplets as small as possible, maximising heat transfer and the rate of water vaporisation. Droplet sizes can range from 20 to 180 μm depending on the nozzle. There are two main types of nozzles: high pressure single fluid nozzle (50 to 300 bars) and two-fluid nozzles: one fluid is the liquid to dry and the second is compressed gas (generally air at 1 to 7 bars).
Spray Dryers can dry a product very quickly compared to other methods of drying. They also turn a solution, or slurry into a dried powder in a single step, which can be advantageous for profit maximization and process simplification.
Spray drying is a wide applied process in liquid process shaping and drying industry.Our scope of equipment ranges from 5g/hr laboratory models to full scale high volume production models in excess of 2,000kg/hr and can meet any required industrial manufacturing specification.
Atomizing Spray Dryer 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.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 working of spray dryer is as follows: Fresh air after filtering and heating, enters into the air distributor at the top of dryer.Then the hot air enters into the drying chamber. The liquid of raw material is pumped in through diaphragm pump, be atomized into tiny droplets. Through the very short time of contacting the hot air, the materials can be dried into the finished products.The wasted air and fine powder will be collected through collector at the bottom of cyclone.The tower body also equipped with observation door, sight glass, lamp-house and so on.
Atomizing Spray Dryer Machine Features:
● 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 producition 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.
♦ Chemical Industry:white carbon,amino acid,catalyst,dyestuff intermediate,sodium fluoride,compund fertilizer,etc.
♦ Plastics and resin:AB,ABS emulsion, uric acid resin,phenolic aldehyde resin,urea-formaldehyde resin,polythene,etc.
♦ Food Industry:oats,chicken juice,coffee,instant dissoluble tea,protein,soybean,peanut protein,hydrolysate,etc.
♦ Sugar:corn syrup,corn starch,glucose,pectin,malt sugar,sorbic acid potassium,etc.
♦ Ceramic:aluminium oxide,ceramic tile material,magnesium oxide,talcum,etc.
Outlet temperature ℃
Paramters Type:LPG 5 25 50 100 150 200-2000 Inlet temperature ℃ 140~350 Automatically controlled ~80-90 Water evaporation capacity kg/h 5 25 50 100 150 200-2000 Drying form of centrifugal nozzle Compressed air Mechanism drive Revolution of atomizer (r.p.m) 25000 18000 18000 18000 15000 8000-15000 Diameter of atomizing disc(mm) 50 100 120 140 150 180-340 Heating source Electricity Electricity+Steam Electricity+Steam.Oil fuel.gas Depends on the user Max. power of electric heater KW 9 36 63 81 99 Overall dimension (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 practical conditions Dried powder recovery rate % ≥95 ≥95 ≥95 ≥95 ≥95 ≥95
Outlet temperature ℃
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