1.2 AGGLOMERATION INSIDE THE DRYER CHAMBER
Agglomeration of particles collisionsbetween particles
adhesion = solid links between particles
Collisions
Several kinds of collisions are possible (in terms of probability) inside the drying chamber during the process between:
-) two liquid drops(coalescence)
-) a liquid dropand a dry/sticky particle(covering)
-) a dry particle(added) and a sticky drop*
-) two dry particles(rebound)
-) sticky particlesand walls(not wanted)
*Usually in controlledagglomeration: contact between sticky particle which is drying and “dry”particles added in the chamber (fines).
Also possible collisions between more than two particles