Optimum Conveying Conditions for the Pneumatic Conveying of Polyethylene Pellets and Similar Materials

摘要

There are many materials that, when conveyed over a wide range of air flow rates, show a distinct pressure minimum point in their operating characteristics. This is particularly the case with polyethylene pellets. Although the optimum point may correspond with maximum material conveying it does not necessarily correspond with minimum power requirements or specific energy. Conveying data for a range of materials is presented and both conventional and air by-pass conveying systems are considered to illustrate the na- ture of the problem. A detailed analysis for a typical pipeline is then undertaken with polyethylene pellets.