MOBILE MINOR™ FEATURES
- New generation of laboratory spray dryers
- Choice of three atomizer systems
- Safe drying of both aqueous and solvent feedstock
- Excellent access - easy to clean
The GEA Niro MOBILE MINOR™ spray dryer size 0.8 has enjoyed
unique success ever since it was first introduced back in the 1950's. Around
2000 units have been supplied to universities, research centers and specialist
powder production facilities around the world.
In the MOBILE MINOR™
small quantities of solutions, suspension and emulsions can be dried into
powder samples for further evaluation. MOBILE MINOR™ test results
provide important information for selecting the design and technical
specification of a given drying project.
ROTARY ATOMIZER
Located in the centre of the chamber roof. An air turbine drive operating
from a 6 bar compressed air source supplies power to the atomizer wheel. A
vaned atomizer wheel is used for non-abrasive feeds and an atomizer wheel with
carbide bushings for atomizing abrasive feeds. Particles in the range 5-25 µm
are created.
TWO-FLUID NOZZLE, CO-CURRENT MODE
Located also in the centre of the chamber roof. The atomization is created
by compressed air at a pressure of 0.5-2.0 bar. The feed and atomizing gas are
passed separately to the nozzle head where the atomization takes places.
Two-fluid nozzles have the advantage of handling more viscous feeds. The
co-current mode is selected for drying heat sensitive products to fine
particles in the range 5-25 µm.
TWO-FLUID NOZZLE, FOUNTAIN MODE
Located in the cone of the drying chamber spraying upwards. The fountain
mode is selected to meet a more coarse and free-flowing powder specification.
Often used for fine ceramics and other non-heat-sensitive products. The
counter-current flow offers a dryer performance with excellent heat utilization
and provides the longer powder residence time in the drying chamber required to
complete the drying to larger particles in the range 15-80 µm.