Ammonium Sulfate; Heat balanced dust extraction of hygroscopic dust
Handling hygroscopic dust, such as ammonium sulfate, requires advanced humidity and temperature control. Mixing of heated air with extracted dust loaded air often leads to multi-phase flow with high condensation (and related fouling) risks. The JOA patented Restrictor™ / HABE unit handles this physical challenge, at the same time balancing the extraction capacity and pressure required per extraction point. Large central systems for complete factory De-dusting with capacities up to 150k m³/hr, are handled by JOA In-line Venturi scrubbers.
Advanced product recovery and explosion safety measures
Advanced product recovery often means handling of explosive / combustible dust. JOA Degritters, Pre-separators and Pulse-separators provide a clear opportunity to recover valuable powders for (direct) re-prosessing. In other cases scrubber recirculation water effluent can be integrated in the process recovery loop, for product recovery. For NFPA / ATEX compliance, explosion safety percussions will be implemented.
