Question

Which of the following dryer used to manufacture milk powder?

(a) Spray dryer

(b) Cabinet tray dryer

(c) Pneumatic dryer

(d) Fluidized bed dryer

I have been asked this question in an interview for job.

My question is taken from Process Engineering Applications in division Process Engineering Applications in Food Industry of Food Processing Unit Operations

Answer 1

Right option is (a) Spray dryer

To explain I would say: Spray dyer is used to produce powder from the solution. It dries the solution stream and separates the solute and evaporates the solvent and forms vapor. The solid particles are collected in a cyclone or drum.