Introduction
The spray dryer is one of the continuous atmospheric dryers. The
liquid material is sprayed with a special device to form a mist,
and is dried in contact with hot air. For the drying of some
heat-sensitive liquids, suspensions and viscous liquids, such as
milk, eggs, tannins and drugs. Also used for drying fuels,
intermediates, soap powder and inorganic salts.
Working Principle
The air is filtered and heated into the top of the dryer air
distributor, hot air into the spiral evenly into the drying
chamber. The material liquid is sprayed into a fine atomized liquid
droplet through the high-speed centrifugal nebulizer at the top of
the tower body, and can be contacted with the hot air in a very
short time and can be dried into finished products. The finished
product is continuously discharged from the bottom of the drying
tower and the cyclone, and the exhaust gas is drained by the draft
fan.
Product Features
High speed drying:the surface area of liquid material is greatly increased after
atomization, achieving instantaneous evaporation of 95% -98% water
in the hot air flow, drying time only takes a few seconds,
especially for heat-sensitive materials
Products achieve good uniformity, mobility and solubility, and also
achieve purity, good quality. The production process is simplified
and the operation control is convenient. For liquid materials with
the moisture content of 40-60% (special materials up to 90%) can be
dried into powder products just with one time, do not need grinding
and screening after drying, reduce production processes and improve
product purity. The product size, bulk density, moisture, in a
certain range can be adjusted by changing operating conditions,
control and management are very convenient.
The air is filtered and heated into the top air distributor of the
dryer, and the hot air enters the drying chamber evenly in a spiral
fashion. The material liquid is sprayed into a fine atomized liquid
droplet through the high-speed centrifugal nebulizer at the top of
the tower body, and can be contacted with the hot air in a very
short time and can be dried into finished products. The finished
product is continuously discharged from the bottom of the drying
tower and the cyclone, and the exhaust gas is drained by the draft
fan.
Application
Food and plants: oats, chicken juice, coffee, instant tea,
seasoning spices meat, protein, soybeans, peanut protein,
hydrolysates and so on.
Carbohydrates: corn steep liquor, corn starch, glucose, pectin,
maltose, potassium sorbate and the like. Chemical industry: battery
raw materials, basic dye pigments, dye intermediates, fertilizer,
formaldehyde silicic acid, catalysts, agents, amino acids, silica
and so on.
Ceramics: alumina, ceramic tile materials, magnesium oxide, talcum
powder and so on
