Product Introduction
Spray drying is a widely used process in the liquid forming and drying industry. It is suitable for producing powdered or granular solid products from solutions, emulsions, suspensions, and paste-like liquid raw materials. Therefore, spray drying is a good process when the particle size distribution, residual moisture content, bulk density, and particle shape of the finished product must meet specific standards.
Working Principle
The air is filtered and heated, then enters the top air distributor of the dryer, where the hot air spirals evenly into the drying chamber. The liquid material is atomized into extremely fine droplets by a high-speed centrifugal atomizer at the top of the tower (rotating), and upon concurrent contact with the hot air, can be dried into finished product in a very short time. The finished product is continuously discharged from the bottom of the drying tower and the cyclone separator, while the exhaust gas is exhausted by the fan.
Performance Features
High drying speed; the liquid is atomized to greatly increase its surface area, which allows for the rapid evaporation of 95%-98% moisture in the hot air stream, achieving drying in just a few seconds, especially suitable for heat-sensitive materials.
The product boasts excellent uniformity, fluidity, and solubility, with high purity and superior quality.
Production process simplified with easy operation control. Liquids with moisture content of 40-60% (special materials up to 90%) can be dried into powdered particles in one step, eliminating the need for crushing and screening, reducing production steps, and improving product purity. Particle size, bulk density, and moisture content can be adjusted within a certain range by changing operational conditions, making control and management convenient.
Material Compatible
Chemical Industry: Sodium (Potassium) Fluoride, alkaline dyes and pigments, dye intermediates, compound fertilizers, formaldehyde silicate, catalysts, sulfur agents, amino acids, and fumed silica, etc.
Plastic Resins: AB, ABS Emulsion, Urea Formaldehyde Resin, Phenolic Resin, Melamine (Urea) Formaldehyde Resin, Polyethylene, Polyvinyl Chloride, etc.
Dairy Products: High-fat milk powder, curd, cocoa milk powder, formula milk, blood meal, egg whites (yolk) etc.
Food & Plants: Oats, Chicken Broth, Coffee, Instant Tea, Flavored Meat Spices, Protein, Soybeans, Peanut Protein, Hydrolysates, etc.
Sugars: Corn syrup, corn starch, pectin, maltose, potassium sorbate, etc.
Ceramics: Aluminum oxide, tile materials, magnesium oxide, talcum powder, etc.
Technical Specifications
Note: The amount of water vaporization is related to the material properties and the hot air intake and outlet temperatures. At an outlet temperature of 90oC, the water vaporization curve is shown in the above figure (for selection reference). Due to continuous product updates, changes in relevant parameters will not be pre-notified.
Order Instructions
Product Name, Physical Properties: Solid Content (or Water Content), Viscosity, Surface Tension, pH Value.
After drying, powder capacity, allowable residual moisture content, particle size, allowable high temperature.
◎ Output, daily class schedule.
Available Energy: Steam pressure availability, electrical capacity, available coal, oil, and gas quantities.
Control Requirements: Is there a need for self-control of import/export temperatures?
◎Powder Collection Requirements: Requirement for baghouse collectors, environmental emissions standards.
Other special requirements.
Technical Specifications
