LPG series high speed centrifugal spray dryer
Spray drying is the most widely used process in the liquid forming and drying industry. Most suitable for producing powdery, granular solid products from solutions, emulsions, suspensions and pasty liquid raw materials. Therefore, when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must meet precise standards, spray drying is an ideal process.
After filtering and heating, the air enters the air distributor on the top of the dryer, and the hot air enters the drying chamber uniformly in a spiral shape. The material liquid is sprayed (rotated) into ultra-fine mist-like liquid beads through a high-speed centrifugal atomizer on the top of the tower body, and can be dried into a finished product in a very short time in contact with hot air in parallel. The finished product is continuously output from the bottom of the drying tower and the cyclone, and the exhaust gas is evacuated by the fan.
The drying speed is fast, and the surface area of the material liquid is greatly increased after being atomized. In the hot air current, 95% -98% of water can be evaporated in an instant, and the drying time is only a few seconds. It is especially suitable for drying heat-sensitive materials.
The product has good uniformity, fluidity and solubility, high purity and good quality.
The production process is simplified and the operation and control are convenient. For liquids with a moisture content of 40-60% (special materials can reach 90%), they can be dried into powder products at one time, without crushing and screening after drying, reducing production processes and improving product purity. The product particle size, bulk density, and moisture can be adjusted by changing the operating conditions within a certain range, and the control and management are very convenient.
Item \ Parameter \ Model
℃ Inlet temperature ℃
140-350 automatic control
℃ Outlet temperature ℃
Maximum evaporation of water kg / h
Centrifugal spray head drive form
Compressed air transmission
Spray plate diameter mm
Electricity + steam
Electricity + steam, fuel, gas
Solved by the user
Electric heating power kw
Dimensions L * W * H
1.8 × 0.93
3 × 2.7
3.7 × 3.2
4.6 × 4.2
5.5 × 4.5
Solve it according to the specific
Dry powder recovery rate %
Note: The amount of water evaporation is related to the characteristics of the material and the temperature of the hot inlet and outlet.
◆ Material name, physical properties: solid content (or water content), viscosity, surface tension, PH value.
◆ Dry powder capacity, allowable residual moisture content, particle size, and allowable maximum temperature.
◆ Yield, daily start time.
◆ Available energy: available steam pressure, electric capacity, coal, oil, gas.
◆ Control requirements: Whether the inlet and outlet temperatures need to be controlled automatically.
◆ Powder collection requirements: Whether to install bag traps, the environment requires exhaust emissions.
◆ Other special requirements.
* Chemical industry: sodium fluoride (potassium), basic dye pigments, dye intermediates, compound fertilizers, formaldehyde silicic acid, catalysts, sulfuric acid agents, amino acids, white carbon, etc.
* Plastic resin: AB, ABS emulsion, urethane resin, phenolic resin, dense rubber (urea) formaldehyde resin, polyethylene, polyvinyl chloride, etc.
* Food industry: fat-rich milk powder, tickle, cocoa milk powder, milk substitute, blood hunting powder, egg white (yellow), etc.
* Food and plants: oatmeal, chicken juice, coffee, instant tea, flavoured meat, protein, soybean, peanut protein, hydrolysate, etc.
* Sugars: corn pulp, corn starch, glucose, pectin, maltose, potassium sorbate, etc.
* Ceramics: alumina, tile materials, magnesia, talc, etc.