General of applications

Spray drying is a wide applied process in liquid process shaping and drying industry. Particularly it is suitable for producing powder, granule or block solid product from solution, emulsion, suspending liquid and pumped paste liquid. Therefore when the distribution of granule size, final moisture, bulk density, granule shape of finished product must be conformed to accuracy standard, the spray drying is an ideal process.

Features of equipment

1)Quick drying speed, the surface area of material liquid through atomizing is increased greatly. In hot air stream, 95% to 98% of moisture can be evaporated at the moment. Particularly suitable to finish drying thermal sensitive material.

2)The product made by the machine has good uniformity, fluidity, solubility, high pure, and high quality.

3)The productive process is simple and the operation control is very convenient. For liquid containing 40-60% of damp(for special material, may be 90%), it can be dried to powder product through drying one time. After dried, it is not necessary to crush and sieve. So it reduces productive procedure and raises the purity of product. For the size, bulk density and moisture of product can be adjusted within certain scope through changing operation condition. The control and management are very convenient.

Working principle 

  Air into hot air distributor“3”at the top of drying chamber though filter“1”and heater“2”after which,hot air is feed into the chamber homegenously in spiral state.Liquid material is pumped to the centrifugal sprayed“7”after flowed through filter“5”Where it is sprayed into fog drops and further contacted with hot air in large surface before it is dried into granulate products in a very short time thanks to speedy evaporation of the humidity,humid waste air is accumulated at the bottom of tower by spiral sprayed“8”and exhausted to the outside by blower“9”, see drawings below.