Kraft Recovery Boilers - Waterside

In order to create steam, high pressure water is pumped through tubes within the boiler. Fuel burned within the boiler supplies the heat which creates steam. This module describes boiler feedwater treatment, the importance of a boiler economizer, and the functions of the primary components on the waterside of a kraft recovery boiler.

•Describe why water is treated before being sent to the boiler •Describe how water is treated before being sent to the boiler •State the importance of sending feedwater through the economizer •Describe the primary function of the steam drum •Describe the principle behind the circulation loops within the boiler •Identify methods of steam drum level control •Describe the function of the superheaters •Describe the purpose of an attemperator •Identify and describe the safety hazards and guidelines associated with recovery boiler waterside •Explain the flows of condensate and makeup water to the boiler •Describe the flow of water and steam within a recovery boiler