Roots Blower

Do Roots blowers compress air?

Roots blowers compress air. ‌ Its operating principle is based on the synchronous rotation of two impellers. As the impellers rotate, the volume between the impellers and between the impellers and the casing changes periodically. At the air inlet, gas is sucked in due to the increase in volume; at the exhaust port, gas is compressed and discharged due to the decrease in volume. ‌ Roots blowers are positive displacement blowers that compress and convey gas by the rotation of the rotor. ‌ 

Despite the many advantages of Roots blowers, they are not without limitations. One of the main advantages of Roots blowers is its ability to operate at high pressure differentials, making it ideal for use in pneumatic conveying systems. These systems use air to transport large quantities of materials such as cement, flour, and chemicals. Roots blowers can provide the high airflow and pressure required for efficient material handling. ‌ 

Another common application for Roots blowers is wastewater treatment plants. The blowers are used to aerate the wastewater, allowing bacteria to break down organic matter and reduce the total biochemical oxygen demand (BOD) of the wastewater. The high airflow and pressure of a Roots blower ensures maximum aeration and oxygen transfer efficiency, resulting in more effective wastewater treatment.

The Roots blower is a simple yet versatile machine that has revolutionized the way materials are transported across a wide range of industries. Its affordable price, durability, and high-pressure capabilities make it a popular choice for many applications, and its design can be modified to increase its versatility and efficiency. While it does have some limitations, the Roots blower remains a valuable tool for a wide range of industrial applications.