Powder and Bulk Engineering
Tuesday, September 02, 2014
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Powder and Bulk Engineering is a technical publication devoted to readers in the bulk solids market, worldwide.
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Publication Date: 03/2005
Pages: 3
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Choosing a pneumatic conveying system: Pressure or vacuum, dense or dilute phase?

A pneumatic conveying system is efficient and inherently dust-tight, making it the most practical equipment for moving large quantities of many dry powders, granules, and pellets. The system uses an airstream to push or pull material through a fully enclosed horizontal or vertical conveying line (pipe or tubing). This article provides basic information to help you determine what kind of pneumatic conveying system will work best for your application.

A pressure pneumatic conveying system introduces compressed air at the system inlet to push the material through the conveying line. A vacuum system applies a vacuum at the delivery end to pull the material through the conveying line. Both pressure and vacuum systems can be used for dense-phase (high-pressure, low-velocity) or dilute-phase (low-pressure, highvelocity) operation.

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