Spray Dryers and Their Heat Source

A diagram of the process of spraying drying.

We have discussed flash and rotary dryers; the third type of industrial dryer that uses a process air heater for hot gas generation is a spray dryer. Spray dryers are known for distributing a consistent particle size and are the most prominent drying system in the food and dairy powder industries. Powdered colors, inorganic chemicals, insoluble organic…

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What Type of Air Heater Do Flash Dryers Utilize?

A diagram of an industrial process with the air dryer and the mixer.

As we mentioned last week, there are 4 main dryer systems that use process airs: rotary dryers, pneumatic/flash dryers, spray dryers, and fluidized bed dryers. This week we will focus on pneumatic/flash dryers (we will refer to them as flash dryers). Flash dryers make up some of the largest dryers in the world! These dryers are…

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