OVERVIEW: This is an interactive training module designed to familiarize trainees with basic techniques for starting up and shutting down drum-type boilers. After completing this module, the trainees should be able to describe basic procedures for performing a cold startup of a drum-type boiler, lighting off the furnace, warming up the boiler, and establishing the boiler flame. They should also be able to describe basic procedures for shutting down a typical drum-type boiler. In addition, the trainees should be able to compare and contrast the startup and shutdown of a drum-type boiler with the startup and shutdown of a once-through boiler.
OBJECTIVES:
Basic Procedures:
• Describe basic checks that boiler operators make during an initial pre-startup walkthrough.
• Describe typical procedures for a cold startup of a controlled circulation, drum-type boiler.
• Describe basic preparations for lighting off the furnace, how light-off is initiated, and how a typical boiler is warmed up.
• Describe how pulverizers are started up and controlled.
• Describe how the main coal burners are ignited and controlled.
• Describe the basic procedures for shutting down a typical drum-type boiler.
Once-Through Boilers:
• Describe the basic differences and similarities between the operation of a once-through boiler and a drum-type boiler.
• Describe how a steam/water separation system is used during the startup and the shutdown of a once-through boiler.
SUBJECTS:
Basic Procedures: • Cold startup • Light-off and Warmup
• Establishing a Boiler Flame • Shutdown
Once-Through Boilers: • Basic Operations • Steam/Water Separation
