NOZZLE TOWER^TM - Can produce free-flowing, dustless powders consisting of coarse, individual beads.

The NOZZLE TOWER^TM produces free-flowing, dustless powders consisting of coarse, individual beads.

In this co-current parallel flow dryer with a top mounted nozzle atomization system the coarse spray droplets are dried slowly while gently falling down the long residence time tower-like chamber. The dried particles are seperated by gravity in the enlarged conical section into a coarser main fraction and fines collected from the exhaust air.

The coarse fraction can be cooled by air introduced into the lower part of the cone, or further dried or cooled in a vibrating fluid-bed.
The fines can be recycled to the atomization zone for incorporation by agglomeration, or to the liquid feed.

FURTHER READING:

Drying and Particle Formation Technologies
Small-scale Spray Drying