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YPG series pressure spray (cooling) dryer

YPG series pressure type spray (cooling) dryer is a kind of equipment that uses pressure type atomizer to atomize solution or slurry materials into fine droplets with the pressure of diaphragm pump, so that the surface area can be significantly increased. After full heat exchange with hot air, it can be quickly dried (tens of seconds to tens of seconds) to obtain powder or fine particle products.
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Product Introduction

This unit is an apparatus capable of completing both drying and granulation simultaneously. According to process requirements, the pressure and flow rate of the liquid pump, as well as the size of the spray nozzle, can be adjusted to achieve spherical particles of a desired size ratio.

Working Principle

The working process of this unit involves the feed liquid being input under high pressure through a diaphragm pump, spraying out雾状液滴, which then co-current下降 with hot air. The majority of the powder particles are collected at the bottom discharge port of the tower. The exhaust gas and its fine powder are separated by a cyclone separator, with the exhaust gas being expelled by an exhaust fan, and the powder being collected by a powder collection tube located at the lower end of the cyclone separator. A secondary dust removal device can also be equipped at the outlet of the fan, with a recovery rate of over 96-98%.

Structural Schematic Diagram


Performance Features

  • Fast drying speed: After atomization, the surface area of the liquid increases significantly, allowing for the instantaneous evaporation of 95%-98% of the moisture in the hot air stream. The drying process takes only a few seconds to tens of seconds, making it particularly suitable for the drying of heat-sensitive materials.
  • All products are spherical granules with uniform particle size, good flowability, solubility, high purity, and excellent quality.
  • Broad application range: Depending on the characteristics of the material, hot air drying can be used, as well as cold air granulation, showing strong adaptability to materials.
  • Simple and stable operation, convenient control, and easy to achieve automated operations.

Adaptability to Materials

Spray Drying Granules:

  • Chemicals: Catalysts, resins, synthetic laundry detergents, fatty acids, ammonium sulfate, dyes, dye intermediates, silica, graphite, phosphates, etc.
  • Food: Amino acids and derivatives, seasonings, proteins, starch, dairy products, coffee extracts, fish meal, meat essence, etc.
  • Pharmaceuticals: Traditional Chinese medicine preparations, pesticides, antibiotics, medical granules, etc.
  • Ceramics: Magnesium oxide, kaolin, various metal oxides, dolomite, etc.

Spray Granulation:

  • Fertilizers, alumina, ceramic powder, pharmaceuticals, heavy metal superhard steel, fertilizers, granular laundry detergent, traditional Chinese medicine preparations.

Spray Cooling Granulation:

  • Amino fatty acids, paraffin, glycerides, tallow, etc. Often used in spray crystallization, spray concentration, and spray reactions.

Technical Specifications

The above evaporation rate is the highest evaporation rate.


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