PRODUCTION MINOR™ spray dryer- versatile drying for in-house research and small-sale production
The PRODUCTION MINOR™ is a standard spray-dryer design with modules
available to offer a wide range of dryer configurations. A versatile dryer in a
sanitary design, it features interchangeable atomization and powder discharge systems. Various powder specifications can be met by selecting the optimum configuration and atomization technique.
Three atomization modes
The PRODUCTION MINOR™ offers three different atomization modes to ensure the solution that is best-suited to the task:
• Rotary atomizer, variable speed, located in the ceiling air disperser. Type FS1 is for aqueous-based feeds, and type FX-1 is for use in locations where explosion-proof equipment is required. Both atomizers are covered by a patent. Different atomizer wheels are available, including wheels for abrasive feeds. Powders produced typically have a mean particle size ranging from 20-50 μm, depending on product and operation parameters.
• Co-current two-fluid nozzle, located in the ceiling air disperser; ideal for heat-sensitive feeds. This atomizing device can handle both low- and high-viscosity feeds. Atomization occurs by compressed air at 1.0-6.0 bar. Powders produced have a mean particle size in the range of 10-40 μm.
• Fountain nozzle, located in the cone of the drying chamber, spraying upwards. The fountain mode produces more free-flowing powders typically of a mean particle size in the range of 60-90 μm. Atomization occurs by compressed air at 1.0-6.0 bar or by pressure. This is mainly used for non-heat-sensitive products.
All atomization options can be supplied for a single plant if alternative operations are required.
Closed-cycle design for operation with organic solvents or reinforced design with venting or suppression systems for dust explosion protection is also available. Other options include an extended drying chamber cylinder and, for exhaust gas cleaning, a bag filter or wet scrubber.
Powder can be collected under the drying chamber and/or the cyclone and/or the bag filter – depending on powder specification requirements.
Dimensions (open)
LxWxH: 4.4x2.0x2.7 m
Nozzle configurations:
