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Conveyors help move large loads

September 14, 2007
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The DPV-T Series conveyor from Cyclonaire Corporation is a vacuum-loaded, top discharge dense phase conveyor that fits where restricted headroom or multiple sources makes other types of pneumatic conveyors impractical. DPV-T conveyors are used for bulk unloading, in-plant transfer, weighing, and batching, or can be customized for almost any dense-phase conveying application. Standard units can handle transfer rates of 100-plus tons per hour and provide high material-to-air ratios and extremely low line velocities – resulting in smaller line sizes, lower air consumption, reduced dust at the discharge, and lower capital investment and operating costs. Abrasive wear and particle degradation also are minimized. DPV-T conveyors are ideal for moving large quantities of powdered, or fine granular materials that are abrasive and friable. DPV Series Conveyors use only positive air pressure for both loading and conveying, eliminating the need for a vacuum pump. 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. A high-level switch senses when the transfer vessel is full and the Programmable Logic Controller (PLC) automatically switches the valves to discharge mode and pressurizes the vessel for conveying material to its destination. Integral dust separation minimizes venturi wear. The PLC control permits reduced supervision and can be easily adapted for highly automated facilities. Unit construction choices include carbon steel, stainless steel, and epoxy coating. Multiple inlets and load cells are optional.

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