Minimizing the Generation of Fines and Streamers Through Proper Pneumatic Conveying, 2006 PLACE Conference
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Properly conveying polymer pellets throughout a production plant is critical for efficient operations. Generally, pellets are transferred via conveying air from one location to another. Such processes include unloading railcars and trucks into silos and moving pellets from silos to extruders. Often, the conveying systems are designed with the intent of minimizing installation costs and not maintaining product quality, resulting in the generation of unwanted fines and streamers. As a result, portions of the resin transfer system become plugged, causing unnecessary line down-time and a loss in productivity. By properly designing the conveying system, the generation of fines and streamers can be minimized, significantly reducing the chance for line plugs, cleaning filters, and unwanted down-time. The goal of this presentation is to develop a general understanding of pneumatic conveying systems and equipment for the polymers industry. An overview of a typical plant’s conveying system will be utilized and troubleshooting skills will be presented that will aid in the minimization of fines and streamers generation.