DPV-B series of dense-phase conveyors from Cyclonaire are rated at more than 100 tons per hour and provide high material-to-air ratios and extremely low-line velocities. Abrasive wear and particle degradation are minimized, the company says. DPV-B conveyors feature vacuum loading with bottom discharge and fit low-headroom environments. Units can be used for bulk unloading, in-plant transfer, scaling and batching. They use positive air pressure for both loading and conveying. A proprietary Cyclonaire venturi assembly creates the vacuum needed for loading. In vacuum mode, the conveyor fills its transfer vessel by drawing material from one or multiple supply sources, such as storage silos, bins, hopper-bottom railcars or trailers. Cycling between loading and unloading the transfer vessel is automatic. A high-level control senses when the transfer vessel is full and automatically switches to discharge mode and pressurizes the vessel for conveying material to its destination. Integral dust separation minimizes venturi wear. Construction choices include carbon steel, stainless steel and epoxy coating. Multiple inlets and load cells are optional. Programmable controls permit reduced supervision and can be outfitted for highly automated operation. Cyclonaire