Rotary blowers are mechanical devices used to move air or gas in various industrial applications. They operate by trapping a volume of air and then forcing it out through an outlet, creating a continuous flow. These blowers are commonly used in processes like wastewater treatment, pneumatic conveying, and material handling. The design of rotary blowers typically includes two or more rotating lobes or rotors that create a vacuum to draw in air. They are known for their efficiency and reliability, making them suitable for applications requiring consistent airflow. Common types include positive displacement blowers and centrifugal blowers.