Understanding Pneumatic Conveying Systems

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Published: 25th January 2010
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Conveyor systems have been around for over 100 years, so we are all familiar with conveyor systems that involve belts. They are very common in warehouses, and of course, airports. However, there is a conveying system of which many people are not aware, and that is a pneumatic conveyor system.


The When and How


They are most commonly used in the chemical industry for transporting objects as small as pellets to materials as bulky as railcars. The best candidate materials for pneumatic conveyors are items that are non-abrasive and non-fibrous. A pneumatic conveyor transports items by forcing a gas stream through vertical or horizontal pipes. In most cases this gas is simply air, but in cases where there is a fire or health hazard, other gases may be used. This gas is expelled at such high pressures that objects are able to be vacuumed from one place to another.


Different Types


There are three main types of pneumatic conveying systems: The vacuum conveyor, the pressure conveyor, and the pressure-vacuum conveyor. The vacuum conveyor works by a pipe pulling in air, propelling the desired item toward you. The pressure conveyor, also known as the positive-pressure conveyor, works by forcing air through the pipes, pushing the objects where you want them to go. Pressure conveyors are more efficient because they are less sensitive to distance. Essentially this means that from a physics stand-point, it requires more energy to bring in gases than to push them out. With pressure conveyors, you can move objects faster and farther than with a vacuum conveyor.


The pressure-vacuum conveyor works a little differently. It does two things at once-it pulls the air surrounding object you want to move, filtering it out and making it easier to move, while simultaneously pumping highly pressured gas in to make it move forward, where you want it to go. This type is very commonly used with railcars.


Buying Pneumatic Conveying Systems


Don't even try to design your own pneumatic conveyor system-they are very complex and can be dangerous if not installed and operated properly. Whether your business requires you be conveying frozen potato chips or plaster, wood shavings or sodium nitrate or sugar, contact a pneumatic conveying systems expert for your conveying needs today.

















Don't even try to design your own pneumatic conveyor system-they are very complex and can be dangerous if not installed and operated properly. Whether your business requires you be conveying frozen potato chips or plaster, wood shavings or sodium nitrate or sugar, contact a pneumatic conveying systems expert (such as the professionals at http://www.domainname.com) for your conveying needs today.

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