Spray Dryer

Spray Dryer: Producing Dry Powder from Liquids

A spray dryer is an efficient method for producing dry powder from liquids or slurries, accomplished through rapid drying with hot gas. This method is particularly suitable for drying heat-sensitive materials, such as food and pharmaceuticals, and allows for the production of uniformly-sized, fine particles.

Types of Spray Dryers
Single-Stage Spray Dryers:
In this type of dryer, the air is blown co-currently with the sprayed liquid. This method typically produces powders with fine particle sizes.

Two-Stage Spray Dryers:
This type divides the drying process into two stages. The first stage occurs at the top (similar to the single-stage type), and the second stage takes place in a static fluidized bed at the bottom of the chamber. This method helps combine smaller particles and creates a more uniform particle size.

Three-Stage Spray Dryers:
In this approach, in addition to the previous stages, a third stage is introduced to further optimize the quality and characteristics of the final powder. In this stage, particles are reprocessed in a moist environment, which enhances solubility and powder flow.

Benefits of Using Spray Dryers
Precise Particle Size Control: By selecting the appropriate atomizer and adjusting the process, one can accurately control the size and properties of the final powder.
Dust Reduction: The latest generations of spray dryers incorporate advanced designs to effectively address dust generation and poor powder flow issues.
High-Quality Powder Production: Utilizing two and three-stage processes results in produced powders with improved characteristics, such as solubility and optimal flowability.
Kimiya Steel Arya has taken significant steps in improving the quality of its products by producing various single to multi-stage spray dryers for different industries..