Suited for applications that require clean, dry parts such as brazing, coating, soldering and plating, thermal deoilers use indirectly heated dry air to clean parts contaminated with oils or lubricants.
Fluid-bed dryers offer an inherently efficient method of moisture removal that has not changed since the systems were developed in the 1950s. The introduction of ever-improving control technologies — personal computer-based and PLC control systems, smart sensors and other technological advances — in the last 40 years, however, has changed how process engineers operate their fluid-bed drying systems.
It’s a point of pride that I have every issue of Process Heating ever published cataloged in a small library in my home office. Admittedly, it’s not as tidy as you might find at your local library. I tend to stack issues that I “check out” on the floor in front of the library until it’s time to clean my office. And, while my lazy filing means a career as a bibliophilic cataloger is doubtful, it also provides opportunities for rediscovery.
Designed to recycle nitrogen to increase the amount of nitrogen in the process air to 85 percent to render combustion impossible, the fluid-bed drying system has an integral baghouse dust collector set directly above the fluid-bed drying zone to create a sealed system.
Turbo-Dryer can be used to dry water-wet or solvent-wet materials through a wide temperature range without the need for vacuum. The gentle material-handling features and low exhaust velocities of the continuous, rotary tray dryer reduce fines formation and carryover in the exhaust.
Drying system includes an integral baghouse dust collector positioned directly above the fluid bed drying zone. The configuration is designed to contain all of the fine particles entrained in the airstream and allow them to remain in the dryer for processing as product rather than collecting them remotely or accepting their loss as waste.
Drying applications vary: from drying frac sand — a relatively simply process often performed for screening purposes — to applications like drying wetted primer in ammunition — a process that depends on accurate temperatures sustained over time. Yet, in drying applications from simple to complex, airflow and temperature uniformity makes a difference.