Pneumatic conveying is a method used to transport bulk materials through pipelines using air or gas. This system utilizes the principle of airflow to move powders, granules, or other small particles from one location to another, making it efficient for industries like food processing, pharmaceuticals, and construction. The process involves creating a pressure difference that allows the material to be picked up and carried along the pipeline. Pneumatic conveying systems can be designed for both dense and dilute phases, depending on the material properties and the required transport distance, ensuring versatility in various applications.