Description of Spray Dryer:
Spray drying is a method of producing dry powder from liquid or slurry materials by rapidly drying with a hot gas. This is the preferred method of drying of many thermally-sensitive materials such as foods, chemicals, feed additives, health products and so on.
Liquid material is pumped into the top installed centrifugal disc atomizer by mono pump and atomized into fine droplets inside the drying chamber. Meanwhile, clean hot air is blown into the air distributor at the same time. The evenly and swirly distributed hot air completely contacts with droplets for heat transfer. The droplets are dried into powder in several seconds and sucked out into the cyclone for discharging via exhaust fan. LPG series Spray dryer has been widely used in battery materials, pharmaceutical, health products, chemical, feedstuff, ceramics, plastic and foodstuff industry for drying liquid material into fine powder.
Features of spray dryer:
1. Fast drying speed: greatly increasing the surface area of the material after the liquid is atomized; it can instantly evaporate 95% -98% of water in the stream of hot air; it takes only a few seconds to complete drying, which is especially suitable for drying heat sensitive materials.
2. Our products have a good uniformity, mobility and solubility, high purity and good quality.
3. Simplified production process, easy to operate and control. Liquid of 40-60% moisture content (up to 90% for special materials) can be dried into powder products at a time, without crushing and screening after drying, which reduces production process and improve product purity. the size, bulk density, moisture can be adjusted within a certain range by changing operation conditions. It is convenient to do control and management.
Application of spray dryer:
New energy industry: Lithium Iron Phosphate, Lithium manganese iron phosphate, Graphene and so on.
Chemical industry: sodium fluoride (potassium), alkaline dyestuff and pigment, dyestuff intermediate, compound fertilizer, formaldehyde silicic acid, catalyst, sulphuric acid agent, amino acid, white carbon black, etc.
Plastic resin: AB, ABS latex, urea resin, phenolic resin, dense glue (urea) formaldehyde resins, polyethylene, polyvinyl chloride, etc.
Food industry: Fruit juice, yeast, plant extracts, fat-rich milk powder, lancet protein, cocoa milk powder, babymeal, hunting blood meal, egg white (yellow), etc.
Pharmaceutical industry: Western medicine, traditional Chinese medicine extracts, etc.
Sugar: corn syrup, corn starch, glucose, pectin, malt sugar, potassium sorbate, etc.
Ceramics: aluminium oxide, ceramic tile material, magnesium oxide, talcum powder, etc.
Parameters of spray dryer:
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| | Electricity, steam, thermal oil, gas, oil, coal, biomass, etc |
Product collecting system | |
| | Bag filter or wet scrubber |
| | Peristaltic pump or screw pump |
| | Centrifugal atomizer or pressure nozzle |
| | Touch screen & PLC/ Button type |
| | SUS304/ SUS316L/ Q235/ 2205 |
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