Product Introduction
Spray drying is a widely used process in liquid forming and drying industries. It is suitable for producing powdered and granular solid products from solutions, emulsions, suspensions, and paste-like liquid raw materials. Therefore, when the particle size distribution, residual moisture content, bulk density, and particle shape of the final product must meet strict standards, spray drying is an ideal process.
Working Principle
After filtration and heating, air enters the air distributor at the top of the dryer, and hot air spirals uniformly into the drying chamber. The feed liquid passes through a high-speed centrifugal atomizer at the top of the tower, (rotating) and is sprayed into extremely fine mist droplets, which come into concurrent contact with the hot air and dry into finished products within a very short time. The finished products are continuously discharged from the bottom of the drying tower and the cyclone separator, while exhaust gas is expelled by the fan.

Performance Features

◎ Fast drying speed: after atomization, the surface area of the feed liquid greatly increases, and in the hot air flow, 95%-98% of the moisture can be evaporated instantly, with the drying process completed in just a few seconds, making it especially suitable for drying heat-sensitive materials.
◎ The product has good uniformity, flowability, and solubility, with high purity and excellent quality.
◎ The production process is simplified, and operation control is convenient. For liquids with a moisture content of 40-60% (up to 90% for special materials), it can be dried into powder or granular products in one step, eliminating the need for crushing and screening after drying, reducing production steps, and improving product purity. Product particle size, bulk density, and moisture content can be adjusted within a certain range by changing operating conditions, making control and management very convenient.
Applicable Materials
Chemical Industry: Sodium (Potassium) Fluoride, Basic Dye Pigments, Dye Intermediates, Compound Fertilizer, Formaldehyde Silicic Acid, Catalyst, Sulfuric Acid Agent, Amino Acids, White Carbon Black, etc.
Plastic Resins: AB, ABS Emulsion, Urea-Formaldehyde Resin, Phenolic Resin, Melamine (Urea) Formaldehyde Resin, Polyethylene, Polyvinyl Chloride, etc.
Food Industry: Full-Fat Milk Powder, Casein, Cocoa Milk Powder, Milk Replacer Powder, Blood Powder, Egg White (Yolk), etc.
Food and Plants: Oats, Chicken Extract, Coffee, Instant Tea, Seasoning Spices Meat, Protein, Soybean, Peanut Protein, Hydrolysates, etc.
Sugars: Corn Steep Liquor, Corn Starch, Glucose, Pectin, Maltose, Potassium Sorbate, etc.
Ceramics: Aluminum Oxide, Tile Materials, Magnesium Oxide, Talc Powder, etc.

Technical Specifications

Note: Moisture evaporation is related to material properties and hot inlet/outlet temperatures. When the outlet temperature is 90o°C, the moisture evaporation curve is shown above (for selection reference). As products are continuously updated, parameters may change without prior notice.
Order instructions
◎ Material name and properties: solid content (or moisture content), viscosity, surface tension, pH value.
◎ Capacity of dried powder, allowable residual moisture content, particle size, maximum allowable temperature.
◎ Output, daily shift duration.
◎ Available energy: steam pressure supply, electrical capacity, available coal, oil, and gas quantities.
◎ Control requirements: whether inlet and outlet temperatures require automatic control.
◎ Powder collection requirements: whether a bag filter needs to be installed, and environmental requirements for exhaust gas emissions.
◎ Other special requirements.
Technical specifications