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Publication Date: 12/1988
Pages: 4
PDF Format
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Using heat exchangers to solve temperature and humidity problems in pneumatic conveying systems

Pneumatic conveying systems are used in many different applications with a diverse range of products. However, with some products the temperature or moisture content of the conveying gas causes problems. Heat exchangers designed specifically for use in pneumatic conveying systems can effectively and efficiently change the conveying gas's temperature, moisture level, or both to prevent degradation of the conveyed product. This article discusses the advantages and disadvantages of heat exchangers commonly used in pneumatic conveying systems. Problems solved by heat exchangers are also discussed.

Increased temperatures and high humidity can cause problems in pneumatic conveying systems, especially for materials such as plastics and food products. Many plastics melt at 250°F. Products such as cake mix and sugar are degraded by high temperatures and high humidity.

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