Pneumatic Conveying
A Review of Pneumatic Conveying Systems

With a suitable choice and arrangement of equipment, with a pneumatic conveying system materials can be conveyed from a hopper or silo in one location to another location some distance away.

Pneumatic conveying systems are basically quite simple and are ideally suited for the transport of powdered and granular materials in factory, site and plant situations. The system requirements are a source of compressed gas, usually air, a feed device, a conveying pipeline and a receiver to disengage the conveyed material and carrier gas. The system is totally enclosed, and if it is required, the system can operate entirely without moving parts coming into contact with the conveyed material.

High, low or negative pressures can be used to convey materials. For hygroscopic materials dry air can be used, for toxic materials a closed loop system can be used, and for potentially explosive materials an inert gas such as nitrogen can be employed. A particular advantage is that materials can be fed into reception vessels maintained at a high pressure if required.

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