Soot blowers now in service may be classified into what two general types?

The correct classification of soot blowers into rotary and stationary types is based on their design and operational function. Rotary soot blowers are equipped with a rotating nozzle, allowing them to sweep across a wider area of the boiler surfaces, providing effective cleaning while minimizing the risk of damage to the tubes. This rotation enables them to cover more surface area and be more efficient in dust and soot removal.

On the other hand, stationary soot blowers do not have moving components and are designed to be positioned in fixed locations. They typically use high-pressure steam or air to blow the soot off the surfaces in a directed manner. While they may not cover as much area as rotary soot blowers, they can be very effective for cleaning specific spots where soot builds up.

This classification is significant in understanding how different soot blowers operate and their applications in maintaining boiler efficiency, as the needs and designs may vary according to the specific requirements of the system being serviced.