fabrication of pneumatic belt conveyor pdf

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Two primary methods for transferring bulk materials are pneumatic and mechanical conveyors. When making choices in bulk material handling, there are a number of considerations to be considered in selecting an optimal transportation method for handling a specific material for a single application.

Pneumatic and mechanical conveyors

Pneumatic conveying systems are used to transfer powders, granules and many other types of dry bulk materials from one area to another process through negative conditions (vacuum) or positive conditions (pressure). These systems are composed of four basic elements: an air source, a material feed device, a transport line and an air material separator. The main difference between conveyors pneumatic and mechanical systems is that tires transported material within a closed line completely, which considerably reduces the chance of material loss.
The basic components of a mechanical transport include a drive motor via a gear and / or chain gear connected to a driving device, such as a roller or a sprocket. The motor power is transferred directly to the conveyor, which is in direct contact with the material. Mechanical conveyors can be opened or closed to the atmosphere, with hundreds of moving and working parts.