Are you familiar with the shutdown procedures for dust removal boiler fans?

With the increasing application of dust removal boiler fans today, it's challenging to ensure the normal operation of mechanical equipment without adhering to numerous operational regulations.

Among these, the startup and shutdown of dust removal boiler fans are particularly critical, especially when more shutdown rules are involved. To facilitate proper operation, the following are the requirements for shutting down dust removal fans that must be understood.

1. Normal Shutdown: All normal shutdowns of the generator set must follow the prescribed procedure. Gradually reduce the intake throttle to 20-25°, press the stop button, and monitor for abnormalities throughout the shutdown process.

Gradually open the exhaust valve (or inlet/outlet intake valve) and gradually close the automatic exhaust valve. After the generator has been stopped for 5-10 minutes, or when the rolling bearing temperature drops below 45°C, fuel supply may be interrupted, which could lead to an accident.

2. Emergency Shutdown of Dust Removal Boiler Fan: During the entire trial operation of the generator set, if any of the following first-type situations occur, an emergency shutdown must be performed immediately. The emergency shutdown procedure involves pressing the main motor stop button, followed by post-shutdown operations.

When steam pressure falls below the alarm value and cannot be restored, the oil tank level gauge shows low oil, an existing vacuum condition occurs, the dust removal boiler fan exhibits sudden vibration exceeding the power trip threshold, or abnormal scraping or friction sounds are detected.

When shaft misalignment values show stable and significant increases. When smoke emanates from any rolling bearing or seal, or when rolling bearing temperatures rise significantly beyond the alarm threshold.

In other words, when performing the actual shutdown operation of the dust removal boiler fan, procedures must strictly adhere to relevant operational regulations to ensure accuracy.